1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod debounced_delay;
19pub mod display_map;
20mod editor_settings;
21mod element;
22mod git;
23mod highlight_matching_bracket;
24mod hover_links;
25mod hover_popover;
26mod hunk_diff;
27mod indent_guides;
28mod inlay_hint_cache;
29mod inline_completion_provider;
30pub mod items;
31mod linked_editing_ranges;
32mod mouse_context_menu;
33pub mod movement;
34mod persistence;
35mod rust_analyzer_ext;
36pub mod scroll;
37mod selections_collection;
38pub mod tasks;
39
40#[cfg(test)]
41mod editor_tests;
42mod signature_help;
43#[cfg(any(test, feature = "test-support"))]
44pub mod test;
45
46use ::git::diff::{DiffHunk, DiffHunkStatus};
47use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
48pub(crate) use actions::*;
49use aho_corasick::AhoCorasick;
50use anyhow::{anyhow, Context as _, Result};
51use blink_manager::BlinkManager;
52use client::{Collaborator, ParticipantIndex};
53use clock::ReplicaId;
54use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
55use convert_case::{Case, Casing};
56use debounced_delay::DebouncedDelay;
57use display_map::*;
58pub use display_map::{DisplayPoint, FoldPlaceholder};
59pub use editor_settings::{CurrentLineHighlight, EditorSettings};
60use element::LineWithInvisibles;
61pub use element::{
62 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
63};
64use futures::FutureExt;
65use fuzzy::{StringMatch, StringMatchCandidate};
66use git::blame::GitBlame;
67use git::diff_hunk_to_display;
68use gpui::{
69 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
70 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
71 Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle, FocusOutEvent,
72 FocusableView, FontId, FontStyle, FontWeight, HighlightStyle, Hsla, InteractiveText,
73 KeyContext, ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render,
74 SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
75 UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext,
76 WeakFocusHandle, WeakView, WhiteSpace, WindowContext,
77};
78use highlight_matching_bracket::refresh_matching_bracket_highlights;
79use hover_popover::{hide_hover, HoverState};
80use hunk_diff::ExpandedHunks;
81pub(crate) use hunk_diff::HunkToExpand;
82use indent_guides::ActiveIndentGuidesState;
83use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
84pub use inline_completion_provider::*;
85pub use items::MAX_TAB_TITLE_LEN;
86use itertools::Itertools;
87use language::{
88 char_kind,
89 language_settings::{self, all_language_settings, InlayHintSettings},
90 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
91 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
92 Point, Selection, SelectionGoal, TransactionId,
93};
94use language::{point_to_lsp, BufferRow, Runnable, RunnableRange};
95use linked_editing_ranges::refresh_linked_ranges;
96use task::{ResolvedTask, TaskTemplate, TaskVariables};
97
98use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
99pub use lsp::CompletionContext;
100use lsp::{
101 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
102 LanguageServerId,
103};
104use mouse_context_menu::MouseContextMenu;
105use movement::TextLayoutDetails;
106pub use multi_buffer::{
107 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
108 ToPoint,
109};
110use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
111use ordered_float::OrderedFloat;
112use parking_lot::{Mutex, RwLock};
113use project::project_settings::{GitGutterSetting, ProjectSettings};
114use project::{
115 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
116 ProjectTransaction, TaskSourceKind, WorktreeId,
117};
118use rand::prelude::*;
119use rpc::{proto::*, ErrorExt};
120use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
121use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
122use serde::{Deserialize, Serialize};
123use settings::{update_settings_file, Settings, SettingsStore};
124use smallvec::SmallVec;
125use snippet::Snippet;
126use std::{
127 any::TypeId,
128 borrow::Cow,
129 cell::RefCell,
130 cmp::{self, Ordering, Reverse},
131 mem,
132 num::NonZeroU32,
133 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
134 path::{Path, PathBuf},
135 rc::Rc,
136 sync::Arc,
137 time::{Duration, Instant},
138};
139pub use sum_tree::Bias;
140use sum_tree::TreeMap;
141use text::{BufferId, OffsetUtf16, Rope};
142use theme::{
143 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
144 ThemeColors, ThemeSettings,
145};
146use ui::{
147 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
148 ListItem, Popover, Tooltip,
149};
150use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
151use workspace::item::{ItemHandle, PreviewTabsSettings};
152use workspace::notifications::{DetachAndPromptErr, NotificationId};
153use workspace::{
154 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
155};
156use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
157
158use crate::hover_links::find_url;
159use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
160
161pub const FILE_HEADER_HEIGHT: u8 = 1;
162pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u8 = 1;
163pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u8 = 1;
164pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
165const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
166const MAX_LINE_LEN: usize = 1024;
167const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
168const MAX_SELECTION_HISTORY_LEN: usize = 1024;
169pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
170#[doc(hidden)]
171pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
172#[doc(hidden)]
173pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
174
175pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
176
177pub fn render_parsed_markdown(
178 element_id: impl Into<ElementId>,
179 parsed: &language::ParsedMarkdown,
180 editor_style: &EditorStyle,
181 workspace: Option<WeakView<Workspace>>,
182 cx: &mut WindowContext,
183) -> InteractiveText {
184 let code_span_background_color = cx
185 .theme()
186 .colors()
187 .editor_document_highlight_read_background;
188
189 let highlights = gpui::combine_highlights(
190 parsed.highlights.iter().filter_map(|(range, highlight)| {
191 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
192 Some((range.clone(), highlight))
193 }),
194 parsed
195 .regions
196 .iter()
197 .zip(&parsed.region_ranges)
198 .filter_map(|(region, range)| {
199 if region.code {
200 Some((
201 range.clone(),
202 HighlightStyle {
203 background_color: Some(code_span_background_color),
204 ..Default::default()
205 },
206 ))
207 } else {
208 None
209 }
210 }),
211 );
212
213 let mut links = Vec::new();
214 let mut link_ranges = Vec::new();
215 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
216 if let Some(link) = region.link.clone() {
217 links.push(link);
218 link_ranges.push(range.clone());
219 }
220 }
221
222 InteractiveText::new(
223 element_id,
224 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
225 )
226 .on_click(link_ranges, move |clicked_range_ix, cx| {
227 match &links[clicked_range_ix] {
228 markdown::Link::Web { url } => cx.open_url(url),
229 markdown::Link::Path { path } => {
230 if let Some(workspace) = &workspace {
231 _ = workspace.update(cx, |workspace, cx| {
232 workspace.open_abs_path(path.clone(), false, cx).detach();
233 });
234 }
235 }
236 }
237 })
238}
239
240#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
241pub(crate) enum InlayId {
242 Suggestion(usize),
243 Hint(usize),
244}
245
246impl InlayId {
247 fn id(&self) -> usize {
248 match self {
249 Self::Suggestion(id) => *id,
250 Self::Hint(id) => *id,
251 }
252 }
253}
254
255enum DiffRowHighlight {}
256enum DocumentHighlightRead {}
257enum DocumentHighlightWrite {}
258enum InputComposition {}
259
260#[derive(Copy, Clone, PartialEq, Eq)]
261pub enum Direction {
262 Prev,
263 Next,
264}
265
266pub fn init_settings(cx: &mut AppContext) {
267 EditorSettings::register(cx);
268}
269
270pub fn init(cx: &mut AppContext) {
271 init_settings(cx);
272
273 workspace::register_project_item::<Editor>(cx);
274 workspace::FollowableViewRegistry::register::<Editor>(cx);
275 workspace::register_serializable_item::<Editor>(cx);
276
277 cx.observe_new_views(
278 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
279 workspace.register_action(Editor::new_file);
280 workspace.register_action(Editor::new_file_in_direction);
281 },
282 )
283 .detach();
284
285 cx.on_action(move |_: &workspace::NewFile, cx| {
286 let app_state = workspace::AppState::global(cx);
287 if let Some(app_state) = app_state.upgrade() {
288 workspace::open_new(app_state, cx, |workspace, cx| {
289 Editor::new_file(workspace, &Default::default(), cx)
290 })
291 .detach();
292 }
293 });
294 cx.on_action(move |_: &workspace::NewWindow, cx| {
295 let app_state = workspace::AppState::global(cx);
296 if let Some(app_state) = app_state.upgrade() {
297 workspace::open_new(app_state, cx, |workspace, cx| {
298 Editor::new_file(workspace, &Default::default(), cx)
299 })
300 .detach();
301 }
302 });
303}
304
305pub struct SearchWithinRange;
306
307trait InvalidationRegion {
308 fn ranges(&self) -> &[Range<Anchor>];
309}
310
311#[derive(Clone, Debug, PartialEq)]
312pub enum SelectPhase {
313 Begin {
314 position: DisplayPoint,
315 add: bool,
316 click_count: usize,
317 },
318 BeginColumnar {
319 position: DisplayPoint,
320 reset: bool,
321 goal_column: u32,
322 },
323 Extend {
324 position: DisplayPoint,
325 click_count: usize,
326 },
327 Update {
328 position: DisplayPoint,
329 goal_column: u32,
330 scroll_delta: gpui::Point<f32>,
331 },
332 End,
333}
334
335#[derive(Clone, Debug)]
336pub enum SelectMode {
337 Character,
338 Word(Range<Anchor>),
339 Line(Range<Anchor>),
340 All,
341}
342
343#[derive(Copy, Clone, PartialEq, Eq, Debug)]
344pub enum EditorMode {
345 SingleLine { auto_width: bool },
346 AutoHeight { max_lines: usize },
347 Full,
348}
349
350#[derive(Clone, Debug)]
351pub enum SoftWrap {
352 None,
353 PreferLine,
354 EditorWidth,
355 Column(u32),
356}
357
358#[derive(Clone)]
359pub struct EditorStyle {
360 pub background: Hsla,
361 pub local_player: PlayerColor,
362 pub text: TextStyle,
363 pub scrollbar_width: Pixels,
364 pub syntax: Arc<SyntaxTheme>,
365 pub status: StatusColors,
366 pub inlay_hints_style: HighlightStyle,
367 pub suggestions_style: HighlightStyle,
368}
369
370impl Default for EditorStyle {
371 fn default() -> Self {
372 Self {
373 background: Hsla::default(),
374 local_player: PlayerColor::default(),
375 text: TextStyle::default(),
376 scrollbar_width: Pixels::default(),
377 syntax: Default::default(),
378 // HACK: Status colors don't have a real default.
379 // We should look into removing the status colors from the editor
380 // style and retrieve them directly from the theme.
381 status: StatusColors::dark(),
382 inlay_hints_style: HighlightStyle::default(),
383 suggestions_style: HighlightStyle::default(),
384 }
385 }
386}
387
388type CompletionId = usize;
389
390#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
391struct EditorActionId(usize);
392
393impl EditorActionId {
394 pub fn post_inc(&mut self) -> Self {
395 let answer = self.0;
396
397 *self = Self(answer + 1);
398
399 Self(answer)
400 }
401}
402
403// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
404// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
405
406type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
407type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
408
409struct ScrollbarMarkerState {
410 scrollbar_size: Size<Pixels>,
411 dirty: bool,
412 markers: Arc<[PaintQuad]>,
413 pending_refresh: Option<Task<Result<()>>>,
414}
415
416impl ScrollbarMarkerState {
417 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
418 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
419 }
420}
421
422impl Default for ScrollbarMarkerState {
423 fn default() -> Self {
424 Self {
425 scrollbar_size: Size::default(),
426 dirty: false,
427 markers: Arc::from([]),
428 pending_refresh: None,
429 }
430 }
431}
432
433#[derive(Clone, Debug)]
434struct RunnableTasks {
435 templates: Vec<(TaskSourceKind, TaskTemplate)>,
436 offset: MultiBufferOffset,
437 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
438 column: u32,
439 // Values of all named captures, including those starting with '_'
440 extra_variables: HashMap<String, String>,
441 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
442 context_range: Range<BufferOffset>,
443}
444
445#[derive(Clone)]
446struct ResolvedTasks {
447 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
448 position: Anchor,
449}
450#[derive(Copy, Clone, Debug)]
451struct MultiBufferOffset(usize);
452#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
453struct BufferOffset(usize);
454/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
455///
456/// See the [module level documentation](self) for more information.
457pub struct Editor {
458 focus_handle: FocusHandle,
459 last_focused_descendant: Option<WeakFocusHandle>,
460 /// The text buffer being edited
461 buffer: Model<MultiBuffer>,
462 /// Map of how text in the buffer should be displayed.
463 /// Handles soft wraps, folds, fake inlay text insertions, etc.
464 pub display_map: Model<DisplayMap>,
465 pub selections: SelectionsCollection,
466 pub scroll_manager: ScrollManager,
467 /// When inline assist editors are linked, they all render cursors because
468 /// typing enters text into each of them, even the ones that aren't focused.
469 pub(crate) show_cursor_when_unfocused: bool,
470 columnar_selection_tail: Option<Anchor>,
471 add_selections_state: Option<AddSelectionsState>,
472 select_next_state: Option<SelectNextState>,
473 select_prev_state: Option<SelectNextState>,
474 selection_history: SelectionHistory,
475 autoclose_regions: Vec<AutocloseRegion>,
476 snippet_stack: InvalidationStack<SnippetState>,
477 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
478 ime_transaction: Option<TransactionId>,
479 active_diagnostics: Option<ActiveDiagnosticGroup>,
480 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
481 project: Option<Model<Project>>,
482 completion_provider: Option<Box<dyn CompletionProvider>>,
483 collaboration_hub: Option<Box<dyn CollaborationHub>>,
484 blink_manager: Model<BlinkManager>,
485 show_cursor_names: bool,
486 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
487 pub show_local_selections: bool,
488 mode: EditorMode,
489 show_breadcrumbs: bool,
490 show_gutter: bool,
491 show_line_numbers: Option<bool>,
492 show_git_diff_gutter: Option<bool>,
493 show_code_actions: Option<bool>,
494 show_runnables: Option<bool>,
495 show_wrap_guides: Option<bool>,
496 show_indent_guides: Option<bool>,
497 placeholder_text: Option<Arc<str>>,
498 highlight_order: usize,
499 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
500 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
501 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
502 scrollbar_marker_state: ScrollbarMarkerState,
503 active_indent_guides_state: ActiveIndentGuidesState,
504 nav_history: Option<ItemNavHistory>,
505 context_menu: RwLock<Option<ContextMenu>>,
506 mouse_context_menu: Option<MouseContextMenu>,
507 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
508 signature_help_state: SignatureHelpState,
509 auto_signature_help: Option<bool>,
510 find_all_references_task_sources: Vec<Anchor>,
511 next_completion_id: CompletionId,
512 completion_documentation_pre_resolve_debounce: DebouncedDelay,
513 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
514 code_actions_task: Option<Task<()>>,
515 document_highlights_task: Option<Task<()>>,
516 linked_editing_range_task: Option<Task<Option<()>>>,
517 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
518 pending_rename: Option<RenameState>,
519 searchable: bool,
520 cursor_shape: CursorShape,
521 current_line_highlight: Option<CurrentLineHighlight>,
522 collapse_matches: bool,
523 autoindent_mode: Option<AutoindentMode>,
524 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
525 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
526 input_enabled: bool,
527 use_modal_editing: bool,
528 read_only: bool,
529 leader_peer_id: Option<PeerId>,
530 remote_id: Option<ViewId>,
531 hover_state: HoverState,
532 gutter_hovered: bool,
533 hovered_link_state: Option<HoveredLinkState>,
534 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
535 active_inline_completion: Option<Inlay>,
536 show_inline_completions: bool,
537 inlay_hint_cache: InlayHintCache,
538 expanded_hunks: ExpandedHunks,
539 next_inlay_id: usize,
540 _subscriptions: Vec<Subscription>,
541 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
542 gutter_dimensions: GutterDimensions,
543 pub vim_replace_map: HashMap<Range<usize>, String>,
544 style: Option<EditorStyle>,
545 next_editor_action_id: EditorActionId,
546 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
547 use_autoclose: bool,
548 use_auto_surround: bool,
549 auto_replace_emoji_shortcode: bool,
550 show_git_blame_gutter: bool,
551 show_git_blame_inline: bool,
552 show_git_blame_inline_delay_task: Option<Task<()>>,
553 git_blame_inline_enabled: bool,
554 serialize_dirty_buffers: bool,
555 show_selection_menu: Option<bool>,
556 blame: Option<Model<GitBlame>>,
557 blame_subscription: Option<Subscription>,
558 custom_context_menu: Option<
559 Box<
560 dyn 'static
561 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
562 >,
563 >,
564 last_bounds: Option<Bounds<Pixels>>,
565 expect_bounds_change: Option<Bounds<Pixels>>,
566 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
567 tasks_update_task: Option<Task<()>>,
568 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
569 file_header_size: u8,
570 breadcrumb_header: Option<String>,
571}
572
573#[derive(Clone)]
574pub struct EditorSnapshot {
575 pub mode: EditorMode,
576 show_gutter: bool,
577 show_line_numbers: Option<bool>,
578 show_git_diff_gutter: Option<bool>,
579 show_code_actions: Option<bool>,
580 show_runnables: Option<bool>,
581 render_git_blame_gutter: bool,
582 pub display_snapshot: DisplaySnapshot,
583 pub placeholder_text: Option<Arc<str>>,
584 is_focused: bool,
585 scroll_anchor: ScrollAnchor,
586 ongoing_scroll: OngoingScroll,
587 current_line_highlight: CurrentLineHighlight,
588 gutter_hovered: bool,
589}
590
591const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
592
593#[derive(Debug, Clone, Copy)]
594pub struct GutterDimensions {
595 pub left_padding: Pixels,
596 pub right_padding: Pixels,
597 pub width: Pixels,
598 pub margin: Pixels,
599 pub git_blame_entries_width: Option<Pixels>,
600}
601
602impl GutterDimensions {
603 /// The full width of the space taken up by the gutter.
604 pub fn full_width(&self) -> Pixels {
605 self.margin + self.width
606 }
607
608 /// The width of the space reserved for the fold indicators,
609 /// use alongside 'justify_end' and `gutter_width` to
610 /// right align content with the line numbers
611 pub fn fold_area_width(&self) -> Pixels {
612 self.margin + self.right_padding
613 }
614}
615
616impl Default for GutterDimensions {
617 fn default() -> Self {
618 Self {
619 left_padding: Pixels::ZERO,
620 right_padding: Pixels::ZERO,
621 width: Pixels::ZERO,
622 margin: Pixels::ZERO,
623 git_blame_entries_width: None,
624 }
625 }
626}
627
628#[derive(Debug)]
629pub struct RemoteSelection {
630 pub replica_id: ReplicaId,
631 pub selection: Selection<Anchor>,
632 pub cursor_shape: CursorShape,
633 pub peer_id: PeerId,
634 pub line_mode: bool,
635 pub participant_index: Option<ParticipantIndex>,
636 pub user_name: Option<SharedString>,
637}
638
639#[derive(Clone, Debug)]
640struct SelectionHistoryEntry {
641 selections: Arc<[Selection<Anchor>]>,
642 select_next_state: Option<SelectNextState>,
643 select_prev_state: Option<SelectNextState>,
644 add_selections_state: Option<AddSelectionsState>,
645}
646
647enum SelectionHistoryMode {
648 Normal,
649 Undoing,
650 Redoing,
651}
652
653#[derive(Clone, PartialEq, Eq, Hash)]
654struct HoveredCursor {
655 replica_id: u16,
656 selection_id: usize,
657}
658
659impl Default for SelectionHistoryMode {
660 fn default() -> Self {
661 Self::Normal
662 }
663}
664
665#[derive(Default)]
666struct SelectionHistory {
667 #[allow(clippy::type_complexity)]
668 selections_by_transaction:
669 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
670 mode: SelectionHistoryMode,
671 undo_stack: VecDeque<SelectionHistoryEntry>,
672 redo_stack: VecDeque<SelectionHistoryEntry>,
673}
674
675impl SelectionHistory {
676 fn insert_transaction(
677 &mut self,
678 transaction_id: TransactionId,
679 selections: Arc<[Selection<Anchor>]>,
680 ) {
681 self.selections_by_transaction
682 .insert(transaction_id, (selections, None));
683 }
684
685 #[allow(clippy::type_complexity)]
686 fn transaction(
687 &self,
688 transaction_id: TransactionId,
689 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
690 self.selections_by_transaction.get(&transaction_id)
691 }
692
693 #[allow(clippy::type_complexity)]
694 fn transaction_mut(
695 &mut self,
696 transaction_id: TransactionId,
697 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
698 self.selections_by_transaction.get_mut(&transaction_id)
699 }
700
701 fn push(&mut self, entry: SelectionHistoryEntry) {
702 if !entry.selections.is_empty() {
703 match self.mode {
704 SelectionHistoryMode::Normal => {
705 self.push_undo(entry);
706 self.redo_stack.clear();
707 }
708 SelectionHistoryMode::Undoing => self.push_redo(entry),
709 SelectionHistoryMode::Redoing => self.push_undo(entry),
710 }
711 }
712 }
713
714 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
715 if self
716 .undo_stack
717 .back()
718 .map_or(true, |e| e.selections != entry.selections)
719 {
720 self.undo_stack.push_back(entry);
721 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
722 self.undo_stack.pop_front();
723 }
724 }
725 }
726
727 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
728 if self
729 .redo_stack
730 .back()
731 .map_or(true, |e| e.selections != entry.selections)
732 {
733 self.redo_stack.push_back(entry);
734 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
735 self.redo_stack.pop_front();
736 }
737 }
738 }
739}
740
741struct RowHighlight {
742 index: usize,
743 range: RangeInclusive<Anchor>,
744 color: Option<Hsla>,
745 should_autoscroll: bool,
746}
747
748#[derive(Clone, Debug)]
749struct AddSelectionsState {
750 above: bool,
751 stack: Vec<usize>,
752}
753
754#[derive(Clone)]
755struct SelectNextState {
756 query: AhoCorasick,
757 wordwise: bool,
758 done: bool,
759}
760
761impl std::fmt::Debug for SelectNextState {
762 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
763 f.debug_struct(std::any::type_name::<Self>())
764 .field("wordwise", &self.wordwise)
765 .field("done", &self.done)
766 .finish()
767 }
768}
769
770#[derive(Debug)]
771struct AutocloseRegion {
772 selection_id: usize,
773 range: Range<Anchor>,
774 pair: BracketPair,
775}
776
777#[derive(Debug)]
778struct SnippetState {
779 ranges: Vec<Vec<Range<Anchor>>>,
780 active_index: usize,
781}
782
783#[doc(hidden)]
784pub struct RenameState {
785 pub range: Range<Anchor>,
786 pub old_name: Arc<str>,
787 pub editor: View<Editor>,
788 block_id: BlockId,
789}
790
791struct InvalidationStack<T>(Vec<T>);
792
793struct RegisteredInlineCompletionProvider {
794 provider: Arc<dyn InlineCompletionProviderHandle>,
795 _subscription: Subscription,
796}
797
798enum ContextMenu {
799 Completions(CompletionsMenu),
800 CodeActions(CodeActionsMenu),
801}
802
803impl ContextMenu {
804 fn select_first(
805 &mut self,
806 project: Option<&Model<Project>>,
807 cx: &mut ViewContext<Editor>,
808 ) -> bool {
809 if self.visible() {
810 match self {
811 ContextMenu::Completions(menu) => menu.select_first(project, cx),
812 ContextMenu::CodeActions(menu) => menu.select_first(cx),
813 }
814 true
815 } else {
816 false
817 }
818 }
819
820 fn select_prev(
821 &mut self,
822 project: Option<&Model<Project>>,
823 cx: &mut ViewContext<Editor>,
824 ) -> bool {
825 if self.visible() {
826 match self {
827 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
828 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
829 }
830 true
831 } else {
832 false
833 }
834 }
835
836 fn select_next(
837 &mut self,
838 project: Option<&Model<Project>>,
839 cx: &mut ViewContext<Editor>,
840 ) -> bool {
841 if self.visible() {
842 match self {
843 ContextMenu::Completions(menu) => menu.select_next(project, cx),
844 ContextMenu::CodeActions(menu) => menu.select_next(cx),
845 }
846 true
847 } else {
848 false
849 }
850 }
851
852 fn select_last(
853 &mut self,
854 project: Option<&Model<Project>>,
855 cx: &mut ViewContext<Editor>,
856 ) -> bool {
857 if self.visible() {
858 match self {
859 ContextMenu::Completions(menu) => menu.select_last(project, cx),
860 ContextMenu::CodeActions(menu) => menu.select_last(cx),
861 }
862 true
863 } else {
864 false
865 }
866 }
867
868 fn visible(&self) -> bool {
869 match self {
870 ContextMenu::Completions(menu) => menu.visible(),
871 ContextMenu::CodeActions(menu) => menu.visible(),
872 }
873 }
874
875 fn render(
876 &self,
877 cursor_position: DisplayPoint,
878 style: &EditorStyle,
879 max_height: Pixels,
880 workspace: Option<WeakView<Workspace>>,
881 cx: &mut ViewContext<Editor>,
882 ) -> (ContextMenuOrigin, AnyElement) {
883 match self {
884 ContextMenu::Completions(menu) => (
885 ContextMenuOrigin::EditorPoint(cursor_position),
886 menu.render(style, max_height, workspace, cx),
887 ),
888 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
889 }
890 }
891}
892
893enum ContextMenuOrigin {
894 EditorPoint(DisplayPoint),
895 GutterIndicator(DisplayRow),
896}
897
898#[derive(Clone)]
899struct CompletionsMenu {
900 id: CompletionId,
901 initial_position: Anchor,
902 buffer: Model<Buffer>,
903 completions: Arc<RwLock<Box<[Completion]>>>,
904 match_candidates: Arc<[StringMatchCandidate]>,
905 matches: Arc<[StringMatch]>,
906 selected_item: usize,
907 scroll_handle: UniformListScrollHandle,
908 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
909}
910
911impl CompletionsMenu {
912 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
913 self.selected_item = 0;
914 self.scroll_handle.scroll_to_item(self.selected_item);
915 self.attempt_resolve_selected_completion_documentation(project, cx);
916 cx.notify();
917 }
918
919 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
920 if self.selected_item > 0 {
921 self.selected_item -= 1;
922 } else {
923 self.selected_item = self.matches.len() - 1;
924 }
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 select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
931 if self.selected_item + 1 < self.matches.len() {
932 self.selected_item += 1;
933 } else {
934 self.selected_item = 0;
935 }
936 self.scroll_handle.scroll_to_item(self.selected_item);
937 self.attempt_resolve_selected_completion_documentation(project, cx);
938 cx.notify();
939 }
940
941 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
942 self.selected_item = self.matches.len() - 1;
943 self.scroll_handle.scroll_to_item(self.selected_item);
944 self.attempt_resolve_selected_completion_documentation(project, cx);
945 cx.notify();
946 }
947
948 fn pre_resolve_completion_documentation(
949 buffer: Model<Buffer>,
950 completions: Arc<RwLock<Box<[Completion]>>>,
951 matches: Arc<[StringMatch]>,
952 editor: &Editor,
953 cx: &mut ViewContext<Editor>,
954 ) -> Task<()> {
955 let settings = EditorSettings::get_global(cx);
956 if !settings.show_completion_documentation {
957 return Task::ready(());
958 }
959
960 let Some(provider) = editor.completion_provider.as_ref() else {
961 return Task::ready(());
962 };
963
964 let resolve_task = provider.resolve_completions(
965 buffer,
966 matches.iter().map(|m| m.candidate_id).collect(),
967 completions.clone(),
968 cx,
969 );
970
971 return cx.spawn(move |this, mut cx| async move {
972 if let Some(true) = resolve_task.await.log_err() {
973 this.update(&mut cx, |_, cx| cx.notify()).ok();
974 }
975 });
976 }
977
978 fn attempt_resolve_selected_completion_documentation(
979 &mut self,
980 project: Option<&Model<Project>>,
981 cx: &mut ViewContext<Editor>,
982 ) {
983 let settings = EditorSettings::get_global(cx);
984 if !settings.show_completion_documentation {
985 return;
986 }
987
988 let completion_index = self.matches[self.selected_item].candidate_id;
989 let Some(project) = project else {
990 return;
991 };
992
993 let resolve_task = project.update(cx, |project, cx| {
994 project.resolve_completions(
995 self.buffer.clone(),
996 vec![completion_index],
997 self.completions.clone(),
998 cx,
999 )
1000 });
1001
1002 let delay_ms =
1003 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1004 let delay = Duration::from_millis(delay_ms);
1005
1006 self.selected_completion_documentation_resolve_debounce
1007 .lock()
1008 .fire_new(delay, cx, |_, cx| {
1009 cx.spawn(move |this, mut cx| async move {
1010 if let Some(true) = resolve_task.await.log_err() {
1011 this.update(&mut cx, |_, cx| cx.notify()).ok();
1012 }
1013 })
1014 });
1015 }
1016
1017 fn visible(&self) -> bool {
1018 !self.matches.is_empty()
1019 }
1020
1021 fn render(
1022 &self,
1023 style: &EditorStyle,
1024 max_height: Pixels,
1025 workspace: Option<WeakView<Workspace>>,
1026 cx: &mut ViewContext<Editor>,
1027 ) -> AnyElement {
1028 let settings = EditorSettings::get_global(cx);
1029 let show_completion_documentation = settings.show_completion_documentation;
1030
1031 let widest_completion_ix = self
1032 .matches
1033 .iter()
1034 .enumerate()
1035 .max_by_key(|(_, mat)| {
1036 let completions = self.completions.read();
1037 let completion = &completions[mat.candidate_id];
1038 let documentation = &completion.documentation;
1039
1040 let mut len = completion.label.text.chars().count();
1041 if let Some(Documentation::SingleLine(text)) = documentation {
1042 if show_completion_documentation {
1043 len += text.chars().count();
1044 }
1045 }
1046
1047 len
1048 })
1049 .map(|(ix, _)| ix);
1050
1051 let completions = self.completions.clone();
1052 let matches = self.matches.clone();
1053 let selected_item = self.selected_item;
1054 let style = style.clone();
1055
1056 let multiline_docs = if show_completion_documentation {
1057 let mat = &self.matches[selected_item];
1058 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1059 Some(Documentation::MultiLinePlainText(text)) => {
1060 Some(div().child(SharedString::from(text.clone())))
1061 }
1062 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1063 Some(div().child(render_parsed_markdown(
1064 "completions_markdown",
1065 parsed,
1066 &style,
1067 workspace,
1068 cx,
1069 )))
1070 }
1071 _ => None,
1072 };
1073 multiline_docs.map(|div| {
1074 div.id("multiline_docs")
1075 .max_h(max_height)
1076 .flex_1()
1077 .px_1p5()
1078 .py_1()
1079 .min_w(px(260.))
1080 .max_w(px(640.))
1081 .w(px(500.))
1082 .overflow_y_scroll()
1083 .occlude()
1084 })
1085 } else {
1086 None
1087 };
1088
1089 let list = uniform_list(
1090 cx.view().clone(),
1091 "completions",
1092 matches.len(),
1093 move |_editor, range, cx| {
1094 let start_ix = range.start;
1095 let completions_guard = completions.read();
1096
1097 matches[range]
1098 .iter()
1099 .enumerate()
1100 .map(|(ix, mat)| {
1101 let item_ix = start_ix + ix;
1102 let candidate_id = mat.candidate_id;
1103 let completion = &completions_guard[candidate_id];
1104
1105 let documentation = if show_completion_documentation {
1106 &completion.documentation
1107 } else {
1108 &None
1109 };
1110
1111 let highlights = gpui::combine_highlights(
1112 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1113 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1114 |(range, mut highlight)| {
1115 // Ignore font weight for syntax highlighting, as we'll use it
1116 // for fuzzy matches.
1117 highlight.font_weight = None;
1118
1119 if completion.lsp_completion.deprecated.unwrap_or(false) {
1120 highlight.strikethrough = Some(StrikethroughStyle {
1121 thickness: 1.0.into(),
1122 ..Default::default()
1123 });
1124 highlight.color = Some(cx.theme().colors().text_muted);
1125 }
1126
1127 (range, highlight)
1128 },
1129 ),
1130 );
1131 let completion_label = StyledText::new(completion.label.text.clone())
1132 .with_highlights(&style.text, highlights);
1133 let documentation_label =
1134 if let Some(Documentation::SingleLine(text)) = documentation {
1135 if text.trim().is_empty() {
1136 None
1137 } else {
1138 Some(
1139 Label::new(text.clone())
1140 .ml_4()
1141 .size(LabelSize::Small)
1142 .color(Color::Muted),
1143 )
1144 }
1145 } else {
1146 None
1147 };
1148
1149 div().min_w(px(220.)).max_w(px(540.)).child(
1150 ListItem::new(mat.candidate_id)
1151 .inset(true)
1152 .selected(item_ix == selected_item)
1153 .on_click(cx.listener(move |editor, _event, cx| {
1154 cx.stop_propagation();
1155 if let Some(task) = editor.confirm_completion(
1156 &ConfirmCompletion {
1157 item_ix: Some(item_ix),
1158 },
1159 cx,
1160 ) {
1161 task.detach_and_log_err(cx)
1162 }
1163 }))
1164 .child(h_flex().overflow_hidden().child(completion_label))
1165 .end_slot::<Label>(documentation_label),
1166 )
1167 })
1168 .collect()
1169 },
1170 )
1171 .occlude()
1172 .max_h(max_height)
1173 .track_scroll(self.scroll_handle.clone())
1174 .with_width_from_item(widest_completion_ix)
1175 .with_sizing_behavior(ListSizingBehavior::Infer);
1176
1177 Popover::new()
1178 .child(list)
1179 .when_some(multiline_docs, |popover, multiline_docs| {
1180 popover.aside(multiline_docs)
1181 })
1182 .into_any_element()
1183 }
1184
1185 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1186 let mut matches = if let Some(query) = query {
1187 fuzzy::match_strings(
1188 &self.match_candidates,
1189 query,
1190 query.chars().any(|c| c.is_uppercase()),
1191 100,
1192 &Default::default(),
1193 executor,
1194 )
1195 .await
1196 } else {
1197 self.match_candidates
1198 .iter()
1199 .enumerate()
1200 .map(|(candidate_id, candidate)| StringMatch {
1201 candidate_id,
1202 score: Default::default(),
1203 positions: Default::default(),
1204 string: candidate.string.clone(),
1205 })
1206 .collect()
1207 };
1208
1209 // Remove all candidates where the query's start does not match the start of any word in the candidate
1210 if let Some(query) = query {
1211 if let Some(query_start) = query.chars().next() {
1212 matches.retain(|string_match| {
1213 split_words(&string_match.string).any(|word| {
1214 // Check that the first codepoint of the word as lowercase matches the first
1215 // codepoint of the query as lowercase
1216 word.chars()
1217 .flat_map(|codepoint| codepoint.to_lowercase())
1218 .zip(query_start.to_lowercase())
1219 .all(|(word_cp, query_cp)| word_cp == query_cp)
1220 })
1221 });
1222 }
1223 }
1224
1225 let completions = self.completions.read();
1226 matches.sort_unstable_by_key(|mat| {
1227 // We do want to strike a balance here between what the language server tells us
1228 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1229 // `Creat` and there is a local variable called `CreateComponent`).
1230 // So what we do is: we bucket all matches into two buckets
1231 // - Strong matches
1232 // - Weak matches
1233 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1234 // and the Weak matches are the rest.
1235 //
1236 // For the strong matches, we sort by the language-servers score first and for the weak
1237 // matches, we prefer our fuzzy finder first.
1238 //
1239 // The thinking behind that: it's useless to take the sort_text the language-server gives
1240 // us into account when it's obviously a bad match.
1241
1242 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1243 enum MatchScore<'a> {
1244 Strong {
1245 sort_text: Option<&'a str>,
1246 score: Reverse<OrderedFloat<f64>>,
1247 sort_key: (usize, &'a str),
1248 },
1249 Weak {
1250 score: Reverse<OrderedFloat<f64>>,
1251 sort_text: Option<&'a str>,
1252 sort_key: (usize, &'a str),
1253 },
1254 }
1255
1256 let completion = &completions[mat.candidate_id];
1257 let sort_key = completion.sort_key();
1258 let sort_text = completion.lsp_completion.sort_text.as_deref();
1259 let score = Reverse(OrderedFloat(mat.score));
1260
1261 if mat.score >= 0.2 {
1262 MatchScore::Strong {
1263 sort_text,
1264 score,
1265 sort_key,
1266 }
1267 } else {
1268 MatchScore::Weak {
1269 score,
1270 sort_text,
1271 sort_key,
1272 }
1273 }
1274 });
1275
1276 for mat in &mut matches {
1277 let completion = &completions[mat.candidate_id];
1278 mat.string.clone_from(&completion.label.text);
1279 for position in &mut mat.positions {
1280 *position += completion.label.filter_range.start;
1281 }
1282 }
1283 drop(completions);
1284
1285 self.matches = matches.into();
1286 self.selected_item = 0;
1287 }
1288}
1289
1290#[derive(Clone)]
1291struct CodeActionContents {
1292 tasks: Option<Arc<ResolvedTasks>>,
1293 actions: Option<Arc<[CodeAction]>>,
1294}
1295
1296impl CodeActionContents {
1297 fn len(&self) -> usize {
1298 match (&self.tasks, &self.actions) {
1299 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1300 (Some(tasks), None) => tasks.templates.len(),
1301 (None, Some(actions)) => actions.len(),
1302 (None, None) => 0,
1303 }
1304 }
1305
1306 fn is_empty(&self) -> bool {
1307 match (&self.tasks, &self.actions) {
1308 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1309 (Some(tasks), None) => tasks.templates.is_empty(),
1310 (None, Some(actions)) => actions.is_empty(),
1311 (None, None) => true,
1312 }
1313 }
1314
1315 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1316 self.tasks
1317 .iter()
1318 .flat_map(|tasks| {
1319 tasks
1320 .templates
1321 .iter()
1322 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1323 })
1324 .chain(self.actions.iter().flat_map(|actions| {
1325 actions
1326 .iter()
1327 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1328 }))
1329 }
1330 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1331 match (&self.tasks, &self.actions) {
1332 (Some(tasks), Some(actions)) => {
1333 if index < tasks.templates.len() {
1334 tasks
1335 .templates
1336 .get(index)
1337 .cloned()
1338 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1339 } else {
1340 actions
1341 .get(index - tasks.templates.len())
1342 .cloned()
1343 .map(CodeActionsItem::CodeAction)
1344 }
1345 }
1346 (Some(tasks), None) => tasks
1347 .templates
1348 .get(index)
1349 .cloned()
1350 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1351 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1352 (None, None) => None,
1353 }
1354 }
1355}
1356
1357#[allow(clippy::large_enum_variant)]
1358#[derive(Clone)]
1359enum CodeActionsItem {
1360 Task(TaskSourceKind, ResolvedTask),
1361 CodeAction(CodeAction),
1362}
1363
1364impl CodeActionsItem {
1365 fn as_task(&self) -> Option<&ResolvedTask> {
1366 let Self::Task(_, task) = self else {
1367 return None;
1368 };
1369 Some(task)
1370 }
1371 fn as_code_action(&self) -> Option<&CodeAction> {
1372 let Self::CodeAction(action) = self else {
1373 return None;
1374 };
1375 Some(action)
1376 }
1377 fn label(&self) -> String {
1378 match self {
1379 Self::CodeAction(action) => action.lsp_action.title.clone(),
1380 Self::Task(_, task) => task.resolved_label.clone(),
1381 }
1382 }
1383}
1384
1385struct CodeActionsMenu {
1386 actions: CodeActionContents,
1387 buffer: Model<Buffer>,
1388 selected_item: usize,
1389 scroll_handle: UniformListScrollHandle,
1390 deployed_from_indicator: Option<DisplayRow>,
1391}
1392
1393impl CodeActionsMenu {
1394 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1395 self.selected_item = 0;
1396 self.scroll_handle.scroll_to_item(self.selected_item);
1397 cx.notify()
1398 }
1399
1400 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1401 if self.selected_item > 0 {
1402 self.selected_item -= 1;
1403 } else {
1404 self.selected_item = self.actions.len() - 1;
1405 }
1406 self.scroll_handle.scroll_to_item(self.selected_item);
1407 cx.notify();
1408 }
1409
1410 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1411 if self.selected_item + 1 < self.actions.len() {
1412 self.selected_item += 1;
1413 } else {
1414 self.selected_item = 0;
1415 }
1416 self.scroll_handle.scroll_to_item(self.selected_item);
1417 cx.notify();
1418 }
1419
1420 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1421 self.selected_item = self.actions.len() - 1;
1422 self.scroll_handle.scroll_to_item(self.selected_item);
1423 cx.notify()
1424 }
1425
1426 fn visible(&self) -> bool {
1427 !self.actions.is_empty()
1428 }
1429
1430 fn render(
1431 &self,
1432 cursor_position: DisplayPoint,
1433 _style: &EditorStyle,
1434 max_height: Pixels,
1435 cx: &mut ViewContext<Editor>,
1436 ) -> (ContextMenuOrigin, AnyElement) {
1437 let actions = self.actions.clone();
1438 let selected_item = self.selected_item;
1439 let element = uniform_list(
1440 cx.view().clone(),
1441 "code_actions_menu",
1442 self.actions.len(),
1443 move |_this, range, cx| {
1444 actions
1445 .iter()
1446 .skip(range.start)
1447 .take(range.end - range.start)
1448 .enumerate()
1449 .map(|(ix, action)| {
1450 let item_ix = range.start + ix;
1451 let selected = selected_item == item_ix;
1452 let colors = cx.theme().colors();
1453 div()
1454 .px_2()
1455 .text_color(colors.text)
1456 .when(selected, |style| {
1457 style
1458 .bg(colors.element_active)
1459 .text_color(colors.text_accent)
1460 })
1461 .hover(|style| {
1462 style
1463 .bg(colors.element_hover)
1464 .text_color(colors.text_accent)
1465 })
1466 .whitespace_nowrap()
1467 .when_some(action.as_code_action(), |this, action| {
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 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1483 .child(SharedString::from(action.lsp_action.title.clone()))
1484 })
1485 .when_some(action.as_task(), |this, task| {
1486 this.on_mouse_down(
1487 MouseButton::Left,
1488 cx.listener(move |editor, _, cx| {
1489 cx.stop_propagation();
1490 if let Some(task) = editor.confirm_code_action(
1491 &ConfirmCodeAction {
1492 item_ix: Some(item_ix),
1493 },
1494 cx,
1495 ) {
1496 task.detach_and_log_err(cx)
1497 }
1498 }),
1499 )
1500 .child(SharedString::from(task.resolved_label.clone()))
1501 })
1502 })
1503 .collect()
1504 },
1505 )
1506 .elevation_1(cx)
1507 .px_2()
1508 .py_1()
1509 .max_h(max_height)
1510 .occlude()
1511 .track_scroll(self.scroll_handle.clone())
1512 .with_width_from_item(
1513 self.actions
1514 .iter()
1515 .enumerate()
1516 .max_by_key(|(_, action)| match action {
1517 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1518 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1519 })
1520 .map(|(ix, _)| ix),
1521 )
1522 .with_sizing_behavior(ListSizingBehavior::Infer)
1523 .into_any_element();
1524
1525 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1526 ContextMenuOrigin::GutterIndicator(row)
1527 } else {
1528 ContextMenuOrigin::EditorPoint(cursor_position)
1529 };
1530
1531 (cursor_position, element)
1532 }
1533}
1534
1535#[derive(Debug)]
1536struct ActiveDiagnosticGroup {
1537 primary_range: Range<Anchor>,
1538 primary_message: String,
1539 group_id: usize,
1540 blocks: HashMap<BlockId, Diagnostic>,
1541 is_valid: bool,
1542}
1543
1544#[derive(Serialize, Deserialize, Clone, Debug)]
1545pub struct ClipboardSelection {
1546 pub len: usize,
1547 pub is_entire_line: bool,
1548 pub first_line_indent: u32,
1549}
1550
1551#[derive(Debug)]
1552pub(crate) struct NavigationData {
1553 cursor_anchor: Anchor,
1554 cursor_position: Point,
1555 scroll_anchor: ScrollAnchor,
1556 scroll_top_row: u32,
1557}
1558
1559enum GotoDefinitionKind {
1560 Symbol,
1561 Type,
1562 Implementation,
1563}
1564
1565#[derive(Debug, Clone)]
1566enum InlayHintRefreshReason {
1567 Toggle(bool),
1568 SettingsChange(InlayHintSettings),
1569 NewLinesShown,
1570 BufferEdited(HashSet<Arc<Language>>),
1571 RefreshRequested,
1572 ExcerptsRemoved(Vec<ExcerptId>),
1573}
1574
1575impl InlayHintRefreshReason {
1576 fn description(&self) -> &'static str {
1577 match self {
1578 Self::Toggle(_) => "toggle",
1579 Self::SettingsChange(_) => "settings change",
1580 Self::NewLinesShown => "new lines shown",
1581 Self::BufferEdited(_) => "buffer edited",
1582 Self::RefreshRequested => "refresh requested",
1583 Self::ExcerptsRemoved(_) => "excerpts removed",
1584 }
1585 }
1586}
1587
1588impl Editor {
1589 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1590 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1591 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1592 Self::new(
1593 EditorMode::SingleLine { auto_width: false },
1594 buffer,
1595 None,
1596 false,
1597 cx,
1598 )
1599 }
1600
1601 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1602 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1603 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1604 Self::new(EditorMode::Full, buffer, None, false, cx)
1605 }
1606
1607 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1608 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1609 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1610 Self::new(
1611 EditorMode::SingleLine { auto_width: true },
1612 buffer,
1613 None,
1614 false,
1615 cx,
1616 )
1617 }
1618
1619 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1620 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1621 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1622 Self::new(
1623 EditorMode::AutoHeight { max_lines },
1624 buffer,
1625 None,
1626 false,
1627 cx,
1628 )
1629 }
1630
1631 pub fn for_buffer(
1632 buffer: Model<Buffer>,
1633 project: Option<Model<Project>>,
1634 cx: &mut ViewContext<Self>,
1635 ) -> Self {
1636 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1637 Self::new(EditorMode::Full, buffer, project, false, cx)
1638 }
1639
1640 pub fn for_multibuffer(
1641 buffer: Model<MultiBuffer>,
1642 project: Option<Model<Project>>,
1643 show_excerpt_controls: bool,
1644 cx: &mut ViewContext<Self>,
1645 ) -> Self {
1646 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1647 }
1648
1649 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1650 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1651 let mut clone = Self::new(
1652 self.mode,
1653 self.buffer.clone(),
1654 self.project.clone(),
1655 show_excerpt_controls,
1656 cx,
1657 );
1658 self.display_map.update(cx, |display_map, cx| {
1659 let snapshot = display_map.snapshot(cx);
1660 clone.display_map.update(cx, |display_map, cx| {
1661 display_map.set_state(&snapshot, cx);
1662 });
1663 });
1664 clone.selections.clone_state(&self.selections);
1665 clone.scroll_manager.clone_state(&self.scroll_manager);
1666 clone.searchable = self.searchable;
1667 clone
1668 }
1669
1670 pub fn new(
1671 mode: EditorMode,
1672 buffer: Model<MultiBuffer>,
1673 project: Option<Model<Project>>,
1674 show_excerpt_controls: bool,
1675 cx: &mut ViewContext<Self>,
1676 ) -> Self {
1677 let style = cx.text_style();
1678 let font_size = style.font_size.to_pixels(cx.rem_size());
1679 let editor = cx.view().downgrade();
1680 let fold_placeholder = FoldPlaceholder {
1681 constrain_width: true,
1682 render: Arc::new(move |fold_id, fold_range, cx| {
1683 let editor = editor.clone();
1684 div()
1685 .id(fold_id)
1686 .bg(cx.theme().colors().ghost_element_background)
1687 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1688 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1689 .rounded_sm()
1690 .size_full()
1691 .cursor_pointer()
1692 .child("⋯")
1693 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1694 .on_click(move |_, cx| {
1695 editor
1696 .update(cx, |editor, cx| {
1697 editor.unfold_ranges(
1698 [fold_range.start..fold_range.end],
1699 true,
1700 false,
1701 cx,
1702 );
1703 cx.stop_propagation();
1704 })
1705 .ok();
1706 })
1707 .into_any()
1708 }),
1709 merge_adjacent: true,
1710 };
1711 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1712 let display_map = cx.new_model(|cx| {
1713 DisplayMap::new(
1714 buffer.clone(),
1715 style.font(),
1716 font_size,
1717 None,
1718 show_excerpt_controls,
1719 file_header_size,
1720 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1721 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1722 fold_placeholder,
1723 cx,
1724 )
1725 });
1726
1727 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1728
1729 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1730
1731 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1732 .then(|| language_settings::SoftWrap::PreferLine);
1733
1734 let mut project_subscriptions = Vec::new();
1735 if mode == EditorMode::Full {
1736 if let Some(project) = project.as_ref() {
1737 if buffer.read(cx).is_singleton() {
1738 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1739 cx.emit(EditorEvent::TitleChanged);
1740 }));
1741 }
1742 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1743 if let project::Event::RefreshInlayHints = event {
1744 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1745 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1746 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1747 let focus_handle = editor.focus_handle(cx);
1748 if focus_handle.is_focused(cx) {
1749 let snapshot = buffer.read(cx).snapshot();
1750 for (range, snippet) in snippet_edits {
1751 let editor_range =
1752 language::range_from_lsp(*range).to_offset(&snapshot);
1753 editor
1754 .insert_snippet(&[editor_range], snippet.clone(), cx)
1755 .ok();
1756 }
1757 }
1758 }
1759 }
1760 }));
1761 let task_inventory = project.read(cx).task_inventory().clone();
1762 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1763 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1764 }));
1765 }
1766 }
1767
1768 let inlay_hint_settings = inlay_hint_settings(
1769 selections.newest_anchor().head(),
1770 &buffer.read(cx).snapshot(cx),
1771 cx,
1772 );
1773 let focus_handle = cx.focus_handle();
1774 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1775 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1776 .detach();
1777 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1778 .detach();
1779 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1780
1781 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1782 Some(false)
1783 } else {
1784 None
1785 };
1786
1787 let mut this = Self {
1788 focus_handle,
1789 show_cursor_when_unfocused: false,
1790 last_focused_descendant: None,
1791 buffer: buffer.clone(),
1792 display_map: display_map.clone(),
1793 selections,
1794 scroll_manager: ScrollManager::new(cx),
1795 columnar_selection_tail: None,
1796 add_selections_state: None,
1797 select_next_state: None,
1798 select_prev_state: None,
1799 selection_history: Default::default(),
1800 autoclose_regions: Default::default(),
1801 snippet_stack: Default::default(),
1802 select_larger_syntax_node_stack: Vec::new(),
1803 ime_transaction: Default::default(),
1804 active_diagnostics: None,
1805 soft_wrap_mode_override,
1806 completion_provider: project.clone().map(|project| Box::new(project) as _),
1807 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1808 project,
1809 blink_manager: blink_manager.clone(),
1810 show_local_selections: true,
1811 mode,
1812 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1813 show_gutter: mode == EditorMode::Full,
1814 show_line_numbers: None,
1815 show_git_diff_gutter: None,
1816 show_code_actions: None,
1817 show_runnables: None,
1818 show_wrap_guides: None,
1819 show_indent_guides,
1820 placeholder_text: None,
1821 highlight_order: 0,
1822 highlighted_rows: HashMap::default(),
1823 background_highlights: Default::default(),
1824 gutter_highlights: TreeMap::default(),
1825 scrollbar_marker_state: ScrollbarMarkerState::default(),
1826 active_indent_guides_state: ActiveIndentGuidesState::default(),
1827 nav_history: None,
1828 context_menu: RwLock::new(None),
1829 mouse_context_menu: None,
1830 completion_tasks: Default::default(),
1831 signature_help_state: SignatureHelpState::default(),
1832 auto_signature_help: None,
1833 find_all_references_task_sources: Vec::new(),
1834 next_completion_id: 0,
1835 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1836 next_inlay_id: 0,
1837 available_code_actions: Default::default(),
1838 code_actions_task: Default::default(),
1839 document_highlights_task: Default::default(),
1840 linked_editing_range_task: Default::default(),
1841 pending_rename: Default::default(),
1842 searchable: true,
1843 cursor_shape: Default::default(),
1844 current_line_highlight: None,
1845 autoindent_mode: Some(AutoindentMode::EachLine),
1846 collapse_matches: false,
1847 workspace: None,
1848 keymap_context_layers: Default::default(),
1849 input_enabled: true,
1850 use_modal_editing: mode == EditorMode::Full,
1851 read_only: false,
1852 use_autoclose: true,
1853 use_auto_surround: true,
1854 auto_replace_emoji_shortcode: false,
1855 leader_peer_id: None,
1856 remote_id: None,
1857 hover_state: Default::default(),
1858 hovered_link_state: Default::default(),
1859 inline_completion_provider: None,
1860 active_inline_completion: None,
1861 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1862 expanded_hunks: ExpandedHunks::default(),
1863 gutter_hovered: false,
1864 pixel_position_of_newest_cursor: None,
1865 last_bounds: None,
1866 expect_bounds_change: None,
1867 gutter_dimensions: GutterDimensions::default(),
1868 style: None,
1869 show_cursor_names: false,
1870 hovered_cursors: Default::default(),
1871 next_editor_action_id: EditorActionId::default(),
1872 editor_actions: Rc::default(),
1873 vim_replace_map: Default::default(),
1874 show_inline_completions: mode == EditorMode::Full,
1875 custom_context_menu: None,
1876 show_git_blame_gutter: false,
1877 show_git_blame_inline: false,
1878 show_selection_menu: None,
1879 show_git_blame_inline_delay_task: None,
1880 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1881 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1882 .session
1883 .restore_unsaved_buffers,
1884 blame: None,
1885 blame_subscription: None,
1886 file_header_size,
1887 tasks: Default::default(),
1888 _subscriptions: vec![
1889 cx.observe(&buffer, Self::on_buffer_changed),
1890 cx.subscribe(&buffer, Self::on_buffer_event),
1891 cx.observe(&display_map, Self::on_display_map_changed),
1892 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1893 cx.observe_global::<SettingsStore>(Self::settings_changed),
1894 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1895 cx.observe_window_activation(|editor, cx| {
1896 let active = cx.is_window_active();
1897 editor.blink_manager.update(cx, |blink_manager, cx| {
1898 if active {
1899 blink_manager.enable(cx);
1900 } else {
1901 blink_manager.show_cursor(cx);
1902 blink_manager.disable(cx);
1903 }
1904 });
1905 }),
1906 ],
1907 tasks_update_task: None,
1908 linked_edit_ranges: Default::default(),
1909 previous_search_ranges: None,
1910 breadcrumb_header: None,
1911 };
1912 this.tasks_update_task = Some(this.refresh_runnables(cx));
1913 this._subscriptions.extend(project_subscriptions);
1914
1915 this.end_selection(cx);
1916 this.scroll_manager.show_scrollbar(cx);
1917
1918 if mode == EditorMode::Full {
1919 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1920 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1921
1922 if this.git_blame_inline_enabled {
1923 this.git_blame_inline_enabled = true;
1924 this.start_git_blame_inline(false, cx);
1925 }
1926 }
1927
1928 this.report_editor_event("open", None, cx);
1929 this
1930 }
1931
1932 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1933 self.mouse_context_menu
1934 .as_ref()
1935 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1936 }
1937
1938 fn key_context(&self, cx: &AppContext) -> KeyContext {
1939 let mut key_context = KeyContext::new_with_defaults();
1940 key_context.add("Editor");
1941 let mode = match self.mode {
1942 EditorMode::SingleLine { .. } => "single_line",
1943 EditorMode::AutoHeight { .. } => "auto_height",
1944 EditorMode::Full => "full",
1945 };
1946
1947 if EditorSettings::get_global(cx).jupyter.enabled {
1948 key_context.add("jupyter");
1949 }
1950
1951 key_context.set("mode", mode);
1952 if self.pending_rename.is_some() {
1953 key_context.add("renaming");
1954 }
1955 if self.context_menu_visible() {
1956 match self.context_menu.read().as_ref() {
1957 Some(ContextMenu::Completions(_)) => {
1958 key_context.add("menu");
1959 key_context.add("showing_completions")
1960 }
1961 Some(ContextMenu::CodeActions(_)) => {
1962 key_context.add("menu");
1963 key_context.add("showing_code_actions")
1964 }
1965 None => {}
1966 }
1967 }
1968
1969 for layer in self.keymap_context_layers.values() {
1970 key_context.extend(layer);
1971 }
1972
1973 if let Some(extension) = self
1974 .buffer
1975 .read(cx)
1976 .as_singleton()
1977 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1978 {
1979 key_context.set("extension", extension.to_string());
1980 }
1981
1982 if self.has_active_inline_completion(cx) {
1983 key_context.add("copilot_suggestion");
1984 key_context.add("inline_completion");
1985 }
1986
1987 key_context
1988 }
1989
1990 pub fn new_file(
1991 workspace: &mut Workspace,
1992 _: &workspace::NewFile,
1993 cx: &mut ViewContext<Workspace>,
1994 ) {
1995 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1996 "Failed to create buffer",
1997 cx,
1998 |e, _| match e.error_code() {
1999 ErrorCode::RemoteUpgradeRequired => Some(format!(
2000 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2001 e.error_tag("required").unwrap_or("the latest version")
2002 )),
2003 _ => None,
2004 },
2005 );
2006 }
2007
2008 pub fn new_in_workspace(
2009 workspace: &mut Workspace,
2010 cx: &mut ViewContext<Workspace>,
2011 ) -> Task<Result<View<Editor>>> {
2012 let project = workspace.project().clone();
2013 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2014
2015 cx.spawn(|workspace, mut cx| async move {
2016 let buffer = create.await?;
2017 workspace.update(&mut cx, |workspace, cx| {
2018 let editor =
2019 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2020 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2021 editor
2022 })
2023 })
2024 }
2025
2026 pub fn new_file_in_direction(
2027 workspace: &mut Workspace,
2028 action: &workspace::NewFileInDirection,
2029 cx: &mut ViewContext<Workspace>,
2030 ) {
2031 let project = workspace.project().clone();
2032 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2033 let direction = action.0;
2034
2035 cx.spawn(|workspace, mut cx| async move {
2036 let buffer = create.await?;
2037 workspace.update(&mut cx, move |workspace, cx| {
2038 workspace.split_item(
2039 direction,
2040 Box::new(
2041 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2042 ),
2043 cx,
2044 )
2045 })?;
2046 anyhow::Ok(())
2047 })
2048 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2049 ErrorCode::RemoteUpgradeRequired => Some(format!(
2050 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2051 e.error_tag("required").unwrap_or("the latest version")
2052 )),
2053 _ => None,
2054 });
2055 }
2056
2057 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2058 self.buffer.read(cx).replica_id()
2059 }
2060
2061 pub fn leader_peer_id(&self) -> Option<PeerId> {
2062 self.leader_peer_id
2063 }
2064
2065 pub fn buffer(&self) -> &Model<MultiBuffer> {
2066 &self.buffer
2067 }
2068
2069 pub fn workspace(&self) -> Option<View<Workspace>> {
2070 self.workspace.as_ref()?.0.upgrade()
2071 }
2072
2073 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2074 self.buffer().read(cx).title(cx)
2075 }
2076
2077 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2078 EditorSnapshot {
2079 mode: self.mode,
2080 show_gutter: self.show_gutter,
2081 show_line_numbers: self.show_line_numbers,
2082 show_git_diff_gutter: self.show_git_diff_gutter,
2083 show_code_actions: self.show_code_actions,
2084 show_runnables: self.show_runnables,
2085 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2086 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2087 scroll_anchor: self.scroll_manager.anchor(),
2088 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2089 placeholder_text: self.placeholder_text.clone(),
2090 is_focused: self.focus_handle.is_focused(cx),
2091 current_line_highlight: self
2092 .current_line_highlight
2093 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2094 gutter_hovered: self.gutter_hovered,
2095 }
2096 }
2097
2098 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2099 self.buffer.read(cx).language_at(point, cx)
2100 }
2101
2102 pub fn file_at<T: ToOffset>(
2103 &self,
2104 point: T,
2105 cx: &AppContext,
2106 ) -> Option<Arc<dyn language::File>> {
2107 self.buffer.read(cx).read(cx).file_at(point).cloned()
2108 }
2109
2110 pub fn active_excerpt(
2111 &self,
2112 cx: &AppContext,
2113 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2114 self.buffer
2115 .read(cx)
2116 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2117 }
2118
2119 pub fn mode(&self) -> EditorMode {
2120 self.mode
2121 }
2122
2123 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2124 self.collaboration_hub.as_deref()
2125 }
2126
2127 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2128 self.collaboration_hub = Some(hub);
2129 }
2130
2131 pub fn set_custom_context_menu(
2132 &mut self,
2133 f: impl 'static
2134 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2135 ) {
2136 self.custom_context_menu = Some(Box::new(f))
2137 }
2138
2139 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2140 self.completion_provider = Some(provider);
2141 }
2142
2143 pub fn set_inline_completion_provider<T>(
2144 &mut self,
2145 provider: Option<Model<T>>,
2146 cx: &mut ViewContext<Self>,
2147 ) where
2148 T: InlineCompletionProvider,
2149 {
2150 self.inline_completion_provider =
2151 provider.map(|provider| RegisteredInlineCompletionProvider {
2152 _subscription: cx.observe(&provider, |this, _, cx| {
2153 if this.focus_handle.is_focused(cx) {
2154 this.update_visible_inline_completion(cx);
2155 }
2156 }),
2157 provider: Arc::new(provider),
2158 });
2159 self.refresh_inline_completion(false, cx);
2160 }
2161
2162 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2163 self.placeholder_text.as_deref()
2164 }
2165
2166 pub fn set_placeholder_text(
2167 &mut self,
2168 placeholder_text: impl Into<Arc<str>>,
2169 cx: &mut ViewContext<Self>,
2170 ) {
2171 let placeholder_text = Some(placeholder_text.into());
2172 if self.placeholder_text != placeholder_text {
2173 self.placeholder_text = placeholder_text;
2174 cx.notify();
2175 }
2176 }
2177
2178 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2179 self.cursor_shape = cursor_shape;
2180
2181 // Disrupt blink for immediate user feedback that the cursor shape has changed
2182 self.blink_manager.update(cx, BlinkManager::show_cursor);
2183
2184 cx.notify();
2185 }
2186
2187 pub fn set_current_line_highlight(
2188 &mut self,
2189 current_line_highlight: Option<CurrentLineHighlight>,
2190 ) {
2191 self.current_line_highlight = current_line_highlight;
2192 }
2193
2194 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2195 self.collapse_matches = collapse_matches;
2196 }
2197
2198 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2199 if self.collapse_matches {
2200 return range.start..range.start;
2201 }
2202 range.clone()
2203 }
2204
2205 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2206 if self.display_map.read(cx).clip_at_line_ends != clip {
2207 self.display_map
2208 .update(cx, |map, _| map.clip_at_line_ends = clip);
2209 }
2210 }
2211
2212 pub fn set_keymap_context_layer<Tag: 'static>(
2213 &mut self,
2214 context: KeyContext,
2215 cx: &mut ViewContext<Self>,
2216 ) {
2217 self.keymap_context_layers
2218 .insert(TypeId::of::<Tag>(), context);
2219 cx.notify();
2220 }
2221
2222 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2223 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2224 cx.notify();
2225 }
2226
2227 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2228 self.input_enabled = input_enabled;
2229 }
2230
2231 pub fn set_autoindent(&mut self, autoindent: bool) {
2232 if autoindent {
2233 self.autoindent_mode = Some(AutoindentMode::EachLine);
2234 } else {
2235 self.autoindent_mode = None;
2236 }
2237 }
2238
2239 pub fn read_only(&self, cx: &AppContext) -> bool {
2240 self.read_only || self.buffer.read(cx).read_only()
2241 }
2242
2243 pub fn set_read_only(&mut self, read_only: bool) {
2244 self.read_only = read_only;
2245 }
2246
2247 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2248 self.use_autoclose = autoclose;
2249 }
2250
2251 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2252 self.use_auto_surround = auto_surround;
2253 }
2254
2255 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2256 self.auto_replace_emoji_shortcode = auto_replace;
2257 }
2258
2259 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2260 self.show_inline_completions = show_inline_completions;
2261 }
2262
2263 pub fn set_use_modal_editing(&mut self, to: bool) {
2264 self.use_modal_editing = to;
2265 }
2266
2267 pub fn use_modal_editing(&self) -> bool {
2268 self.use_modal_editing
2269 }
2270
2271 fn selections_did_change(
2272 &mut self,
2273 local: bool,
2274 old_cursor_position: &Anchor,
2275 show_completions: bool,
2276 cx: &mut ViewContext<Self>,
2277 ) {
2278 // Copy selections to primary selection buffer
2279 #[cfg(target_os = "linux")]
2280 if local {
2281 let selections = self.selections.all::<usize>(cx);
2282 let buffer_handle = self.buffer.read(cx).read(cx);
2283
2284 let mut text = String::new();
2285 for (index, selection) in selections.iter().enumerate() {
2286 let text_for_selection = buffer_handle
2287 .text_for_range(selection.start..selection.end)
2288 .collect::<String>();
2289
2290 text.push_str(&text_for_selection);
2291 if index != selections.len() - 1 {
2292 text.push('\n');
2293 }
2294 }
2295
2296 if !text.is_empty() {
2297 cx.write_to_primary(ClipboardItem::new(text));
2298 }
2299 }
2300
2301 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2302 self.buffer.update(cx, |buffer, cx| {
2303 buffer.set_active_selections(
2304 &self.selections.disjoint_anchors(),
2305 self.selections.line_mode,
2306 self.cursor_shape,
2307 cx,
2308 )
2309 });
2310 }
2311 let display_map = self
2312 .display_map
2313 .update(cx, |display_map, cx| display_map.snapshot(cx));
2314 let buffer = &display_map.buffer_snapshot;
2315 self.add_selections_state = None;
2316 self.select_next_state = None;
2317 self.select_prev_state = None;
2318 self.select_larger_syntax_node_stack.clear();
2319 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2320 self.snippet_stack
2321 .invalidate(&self.selections.disjoint_anchors(), buffer);
2322 self.take_rename(false, cx);
2323
2324 let new_cursor_position = self.selections.newest_anchor().head();
2325
2326 self.push_to_nav_history(
2327 *old_cursor_position,
2328 Some(new_cursor_position.to_point(buffer)),
2329 cx,
2330 );
2331
2332 if local {
2333 let new_cursor_position = self.selections.newest_anchor().head();
2334 let mut context_menu = self.context_menu.write();
2335 let completion_menu = match context_menu.as_ref() {
2336 Some(ContextMenu::Completions(menu)) => Some(menu),
2337
2338 _ => {
2339 *context_menu = None;
2340 None
2341 }
2342 };
2343
2344 if let Some(completion_menu) = completion_menu {
2345 let cursor_position = new_cursor_position.to_offset(buffer);
2346 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2347 if kind == Some(CharKind::Word)
2348 && word_range.to_inclusive().contains(&cursor_position)
2349 {
2350 let mut completion_menu = completion_menu.clone();
2351 drop(context_menu);
2352
2353 let query = Self::completion_query(buffer, cursor_position);
2354 cx.spawn(move |this, mut cx| async move {
2355 completion_menu
2356 .filter(query.as_deref(), cx.background_executor().clone())
2357 .await;
2358
2359 this.update(&mut cx, |this, cx| {
2360 let mut context_menu = this.context_menu.write();
2361 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2362 return;
2363 };
2364
2365 if menu.id > completion_menu.id {
2366 return;
2367 }
2368
2369 *context_menu = Some(ContextMenu::Completions(completion_menu));
2370 drop(context_menu);
2371 cx.notify();
2372 })
2373 })
2374 .detach();
2375
2376 if show_completions {
2377 self.show_completions(&ShowCompletions { trigger: None }, cx);
2378 }
2379 } else {
2380 drop(context_menu);
2381 self.hide_context_menu(cx);
2382 }
2383 } else {
2384 drop(context_menu);
2385 }
2386
2387 hide_hover(self, cx);
2388
2389 if old_cursor_position.to_display_point(&display_map).row()
2390 != new_cursor_position.to_display_point(&display_map).row()
2391 {
2392 self.available_code_actions.take();
2393 }
2394 self.refresh_code_actions(cx);
2395 self.refresh_document_highlights(cx);
2396 refresh_matching_bracket_highlights(self, cx);
2397 self.discard_inline_completion(false, cx);
2398 linked_editing_ranges::refresh_linked_ranges(self, cx);
2399 if self.git_blame_inline_enabled {
2400 self.start_inline_blame_timer(cx);
2401 }
2402 }
2403
2404 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2405 cx.emit(EditorEvent::SelectionsChanged { local });
2406
2407 if self.selections.disjoint_anchors().len() == 1 {
2408 cx.emit(SearchEvent::ActiveMatchChanged)
2409 }
2410 cx.notify();
2411 }
2412
2413 pub fn change_selections<R>(
2414 &mut self,
2415 autoscroll: Option<Autoscroll>,
2416 cx: &mut ViewContext<Self>,
2417 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2418 ) -> R {
2419 self.change_selections_inner(autoscroll, true, cx, change)
2420 }
2421
2422 pub fn change_selections_inner<R>(
2423 &mut self,
2424 autoscroll: Option<Autoscroll>,
2425 request_completions: bool,
2426 cx: &mut ViewContext<Self>,
2427 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2428 ) -> R {
2429 let old_cursor_position = self.selections.newest_anchor().head();
2430 self.push_to_selection_history();
2431
2432 let (changed, result) = self.selections.change_with(cx, change);
2433
2434 if changed {
2435 if let Some(autoscroll) = autoscroll {
2436 self.request_autoscroll(autoscroll, cx);
2437 }
2438 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2439
2440 if self.should_open_signature_help_automatically(
2441 &old_cursor_position,
2442 self.signature_help_state.backspace_pressed(),
2443 cx,
2444 ) {
2445 self.show_signature_help(&ShowSignatureHelp, cx);
2446 }
2447 self.signature_help_state.set_backspace_pressed(false);
2448 }
2449
2450 result
2451 }
2452
2453 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2454 where
2455 I: IntoIterator<Item = (Range<S>, T)>,
2456 S: ToOffset,
2457 T: Into<Arc<str>>,
2458 {
2459 if self.read_only(cx) {
2460 return;
2461 }
2462
2463 self.buffer
2464 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2465 }
2466
2467 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2468 where
2469 I: IntoIterator<Item = (Range<S>, T)>,
2470 S: ToOffset,
2471 T: Into<Arc<str>>,
2472 {
2473 if self.read_only(cx) {
2474 return;
2475 }
2476
2477 self.buffer.update(cx, |buffer, cx| {
2478 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2479 });
2480 }
2481
2482 pub fn edit_with_block_indent<I, S, T>(
2483 &mut self,
2484 edits: I,
2485 original_indent_columns: Vec<u32>,
2486 cx: &mut ViewContext<Self>,
2487 ) where
2488 I: IntoIterator<Item = (Range<S>, T)>,
2489 S: ToOffset,
2490 T: Into<Arc<str>>,
2491 {
2492 if self.read_only(cx) {
2493 return;
2494 }
2495
2496 self.buffer.update(cx, |buffer, cx| {
2497 buffer.edit(
2498 edits,
2499 Some(AutoindentMode::Block {
2500 original_indent_columns,
2501 }),
2502 cx,
2503 )
2504 });
2505 }
2506
2507 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2508 self.hide_context_menu(cx);
2509
2510 match phase {
2511 SelectPhase::Begin {
2512 position,
2513 add,
2514 click_count,
2515 } => self.begin_selection(position, add, click_count, cx),
2516 SelectPhase::BeginColumnar {
2517 position,
2518 goal_column,
2519 reset,
2520 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2521 SelectPhase::Extend {
2522 position,
2523 click_count,
2524 } => self.extend_selection(position, click_count, cx),
2525 SelectPhase::Update {
2526 position,
2527 goal_column,
2528 scroll_delta,
2529 } => self.update_selection(position, goal_column, scroll_delta, cx),
2530 SelectPhase::End => self.end_selection(cx),
2531 }
2532 }
2533
2534 fn extend_selection(
2535 &mut self,
2536 position: DisplayPoint,
2537 click_count: usize,
2538 cx: &mut ViewContext<Self>,
2539 ) {
2540 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2541 let tail = self.selections.newest::<usize>(cx).tail();
2542 self.begin_selection(position, false, click_count, cx);
2543
2544 let position = position.to_offset(&display_map, Bias::Left);
2545 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2546
2547 let mut pending_selection = self
2548 .selections
2549 .pending_anchor()
2550 .expect("extend_selection not called with pending selection");
2551 if position >= tail {
2552 pending_selection.start = tail_anchor;
2553 } else {
2554 pending_selection.end = tail_anchor;
2555 pending_selection.reversed = true;
2556 }
2557
2558 let mut pending_mode = self.selections.pending_mode().unwrap();
2559 match &mut pending_mode {
2560 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2561 _ => {}
2562 }
2563
2564 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2565 s.set_pending(pending_selection, pending_mode)
2566 });
2567 }
2568
2569 fn begin_selection(
2570 &mut self,
2571 position: DisplayPoint,
2572 add: bool,
2573 click_count: usize,
2574 cx: &mut ViewContext<Self>,
2575 ) {
2576 if !self.focus_handle.is_focused(cx) {
2577 self.last_focused_descendant = None;
2578 cx.focus(&self.focus_handle);
2579 }
2580
2581 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2582 let buffer = &display_map.buffer_snapshot;
2583 let newest_selection = self.selections.newest_anchor().clone();
2584 let position = display_map.clip_point(position, Bias::Left);
2585
2586 let start;
2587 let end;
2588 let mode;
2589 let auto_scroll;
2590 match click_count {
2591 1 => {
2592 start = buffer.anchor_before(position.to_point(&display_map));
2593 end = start;
2594 mode = SelectMode::Character;
2595 auto_scroll = true;
2596 }
2597 2 => {
2598 let range = movement::surrounding_word(&display_map, position);
2599 start = buffer.anchor_before(range.start.to_point(&display_map));
2600 end = buffer.anchor_before(range.end.to_point(&display_map));
2601 mode = SelectMode::Word(start..end);
2602 auto_scroll = true;
2603 }
2604 3 => {
2605 let position = display_map
2606 .clip_point(position, Bias::Left)
2607 .to_point(&display_map);
2608 let line_start = display_map.prev_line_boundary(position).0;
2609 let next_line_start = buffer.clip_point(
2610 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2611 Bias::Left,
2612 );
2613 start = buffer.anchor_before(line_start);
2614 end = buffer.anchor_before(next_line_start);
2615 mode = SelectMode::Line(start..end);
2616 auto_scroll = true;
2617 }
2618 _ => {
2619 start = buffer.anchor_before(0);
2620 end = buffer.anchor_before(buffer.len());
2621 mode = SelectMode::All;
2622 auto_scroll = false;
2623 }
2624 }
2625
2626 let point_to_delete: Option<usize> = {
2627 let selected_points: Vec<Selection<Point>> =
2628 self.selections.disjoint_in_range(start..end, cx);
2629
2630 if !add || click_count > 1 {
2631 None
2632 } else if selected_points.len() > 0 {
2633 Some(selected_points[0].id)
2634 } else {
2635 let clicked_point_already_selected =
2636 self.selections.disjoint.iter().find(|selection| {
2637 selection.start.to_point(buffer) == start.to_point(buffer)
2638 || selection.end.to_point(buffer) == end.to_point(buffer)
2639 });
2640
2641 if let Some(selection) = clicked_point_already_selected {
2642 Some(selection.id)
2643 } else {
2644 None
2645 }
2646 }
2647 };
2648
2649 let selections_count = self.selections.count();
2650
2651 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2652 if let Some(point_to_delete) = point_to_delete {
2653 s.delete(point_to_delete);
2654
2655 if selections_count == 1 {
2656 s.set_pending_anchor_range(start..end, mode);
2657 }
2658 } else {
2659 if !add {
2660 s.clear_disjoint();
2661 } else if click_count > 1 {
2662 s.delete(newest_selection.id)
2663 }
2664
2665 s.set_pending_anchor_range(start..end, mode);
2666 }
2667 });
2668 }
2669
2670 fn begin_columnar_selection(
2671 &mut self,
2672 position: DisplayPoint,
2673 goal_column: u32,
2674 reset: bool,
2675 cx: &mut ViewContext<Self>,
2676 ) {
2677 if !self.focus_handle.is_focused(cx) {
2678 self.last_focused_descendant = None;
2679 cx.focus(&self.focus_handle);
2680 }
2681
2682 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2683
2684 if reset {
2685 let pointer_position = display_map
2686 .buffer_snapshot
2687 .anchor_before(position.to_point(&display_map));
2688
2689 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2690 s.clear_disjoint();
2691 s.set_pending_anchor_range(
2692 pointer_position..pointer_position,
2693 SelectMode::Character,
2694 );
2695 });
2696 }
2697
2698 let tail = self.selections.newest::<Point>(cx).tail();
2699 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2700
2701 if !reset {
2702 self.select_columns(
2703 tail.to_display_point(&display_map),
2704 position,
2705 goal_column,
2706 &display_map,
2707 cx,
2708 );
2709 }
2710 }
2711
2712 fn update_selection(
2713 &mut self,
2714 position: DisplayPoint,
2715 goal_column: u32,
2716 scroll_delta: gpui::Point<f32>,
2717 cx: &mut ViewContext<Self>,
2718 ) {
2719 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2720
2721 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2722 let tail = tail.to_display_point(&display_map);
2723 self.select_columns(tail, position, goal_column, &display_map, cx);
2724 } else if let Some(mut pending) = self.selections.pending_anchor() {
2725 let buffer = self.buffer.read(cx).snapshot(cx);
2726 let head;
2727 let tail;
2728 let mode = self.selections.pending_mode().unwrap();
2729 match &mode {
2730 SelectMode::Character => {
2731 head = position.to_point(&display_map);
2732 tail = pending.tail().to_point(&buffer);
2733 }
2734 SelectMode::Word(original_range) => {
2735 let original_display_range = original_range.start.to_display_point(&display_map)
2736 ..original_range.end.to_display_point(&display_map);
2737 let original_buffer_range = original_display_range.start.to_point(&display_map)
2738 ..original_display_range.end.to_point(&display_map);
2739 if movement::is_inside_word(&display_map, position)
2740 || original_display_range.contains(&position)
2741 {
2742 let word_range = movement::surrounding_word(&display_map, position);
2743 if word_range.start < original_display_range.start {
2744 head = word_range.start.to_point(&display_map);
2745 } else {
2746 head = word_range.end.to_point(&display_map);
2747 }
2748 } else {
2749 head = position.to_point(&display_map);
2750 }
2751
2752 if head <= original_buffer_range.start {
2753 tail = original_buffer_range.end;
2754 } else {
2755 tail = original_buffer_range.start;
2756 }
2757 }
2758 SelectMode::Line(original_range) => {
2759 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2760
2761 let position = display_map
2762 .clip_point(position, Bias::Left)
2763 .to_point(&display_map);
2764 let line_start = display_map.prev_line_boundary(position).0;
2765 let next_line_start = buffer.clip_point(
2766 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2767 Bias::Left,
2768 );
2769
2770 if line_start < original_range.start {
2771 head = line_start
2772 } else {
2773 head = next_line_start
2774 }
2775
2776 if head <= original_range.start {
2777 tail = original_range.end;
2778 } else {
2779 tail = original_range.start;
2780 }
2781 }
2782 SelectMode::All => {
2783 return;
2784 }
2785 };
2786
2787 if head < tail {
2788 pending.start = buffer.anchor_before(head);
2789 pending.end = buffer.anchor_before(tail);
2790 pending.reversed = true;
2791 } else {
2792 pending.start = buffer.anchor_before(tail);
2793 pending.end = buffer.anchor_before(head);
2794 pending.reversed = false;
2795 }
2796
2797 self.change_selections(None, cx, |s| {
2798 s.set_pending(pending, mode);
2799 });
2800 } else {
2801 log::error!("update_selection dispatched with no pending selection");
2802 return;
2803 }
2804
2805 self.apply_scroll_delta(scroll_delta, cx);
2806 cx.notify();
2807 }
2808
2809 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2810 self.columnar_selection_tail.take();
2811 if self.selections.pending_anchor().is_some() {
2812 let selections = self.selections.all::<usize>(cx);
2813 self.change_selections(None, cx, |s| {
2814 s.select(selections);
2815 s.clear_pending();
2816 });
2817 }
2818 }
2819
2820 fn select_columns(
2821 &mut self,
2822 tail: DisplayPoint,
2823 head: DisplayPoint,
2824 goal_column: u32,
2825 display_map: &DisplaySnapshot,
2826 cx: &mut ViewContext<Self>,
2827 ) {
2828 let start_row = cmp::min(tail.row(), head.row());
2829 let end_row = cmp::max(tail.row(), head.row());
2830 let start_column = cmp::min(tail.column(), goal_column);
2831 let end_column = cmp::max(tail.column(), goal_column);
2832 let reversed = start_column < tail.column();
2833
2834 let selection_ranges = (start_row.0..=end_row.0)
2835 .map(DisplayRow)
2836 .filter_map(|row| {
2837 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2838 let start = display_map
2839 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2840 .to_point(display_map);
2841 let end = display_map
2842 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2843 .to_point(display_map);
2844 if reversed {
2845 Some(end..start)
2846 } else {
2847 Some(start..end)
2848 }
2849 } else {
2850 None
2851 }
2852 })
2853 .collect::<Vec<_>>();
2854
2855 self.change_selections(None, cx, |s| {
2856 s.select_ranges(selection_ranges);
2857 });
2858 cx.notify();
2859 }
2860
2861 pub fn has_pending_nonempty_selection(&self) -> bool {
2862 let pending_nonempty_selection = match self.selections.pending_anchor() {
2863 Some(Selection { start, end, .. }) => start != end,
2864 None => false,
2865 };
2866
2867 pending_nonempty_selection
2868 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2869 }
2870
2871 pub fn has_pending_selection(&self) -> bool {
2872 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2873 }
2874
2875 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2876 self.clear_expanded_diff_hunks(cx);
2877 if self.dismiss_menus_and_popups(true, cx) {
2878 return;
2879 }
2880
2881 if self.mode == EditorMode::Full {
2882 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2883 return;
2884 }
2885 }
2886
2887 cx.propagate();
2888 }
2889
2890 pub fn dismiss_menus_and_popups(
2891 &mut self,
2892 should_report_inline_completion_event: bool,
2893 cx: &mut ViewContext<Self>,
2894 ) -> bool {
2895 if self.take_rename(false, cx).is_some() {
2896 return true;
2897 }
2898
2899 if hide_hover(self, cx) {
2900 return true;
2901 }
2902
2903 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2904 return true;
2905 }
2906
2907 if self.hide_context_menu(cx).is_some() {
2908 return true;
2909 }
2910
2911 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2912 return true;
2913 }
2914
2915 if self.snippet_stack.pop().is_some() {
2916 return true;
2917 }
2918
2919 if self.mode == EditorMode::Full {
2920 if self.active_diagnostics.is_some() {
2921 self.dismiss_diagnostics(cx);
2922 return true;
2923 }
2924 }
2925
2926 false
2927 }
2928
2929 fn linked_editing_ranges_for(
2930 &self,
2931 selection: Range<text::Anchor>,
2932 cx: &AppContext,
2933 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2934 if self.linked_edit_ranges.is_empty() {
2935 return None;
2936 }
2937 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2938 selection.end.buffer_id.and_then(|end_buffer_id| {
2939 if selection.start.buffer_id != Some(end_buffer_id) {
2940 return None;
2941 }
2942 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2943 let snapshot = buffer.read(cx).snapshot();
2944 self.linked_edit_ranges
2945 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2946 .map(|ranges| (ranges, snapshot, buffer))
2947 })?;
2948 use text::ToOffset as TO;
2949 // find offset from the start of current range to current cursor position
2950 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2951
2952 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2953 let start_difference = start_offset - start_byte_offset;
2954 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2955 let end_difference = end_offset - start_byte_offset;
2956 // Current range has associated linked ranges.
2957 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2958 for range in linked_ranges.iter() {
2959 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2960 let end_offset = start_offset + end_difference;
2961 let start_offset = start_offset + start_difference;
2962 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2963 continue;
2964 }
2965 let start = buffer_snapshot.anchor_after(start_offset);
2966 let end = buffer_snapshot.anchor_after(end_offset);
2967 linked_edits
2968 .entry(buffer.clone())
2969 .or_default()
2970 .push(start..end);
2971 }
2972 Some(linked_edits)
2973 }
2974
2975 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2976 let text: Arc<str> = text.into();
2977
2978 if self.read_only(cx) {
2979 return;
2980 }
2981
2982 let selections = self.selections.all_adjusted(cx);
2983 let mut bracket_inserted = false;
2984 let mut edits = Vec::new();
2985 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2986 let mut new_selections = Vec::with_capacity(selections.len());
2987 let mut new_autoclose_regions = Vec::new();
2988 let snapshot = self.buffer.read(cx).read(cx);
2989
2990 for (selection, autoclose_region) in
2991 self.selections_with_autoclose_regions(selections, &snapshot)
2992 {
2993 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2994 // Determine if the inserted text matches the opening or closing
2995 // bracket of any of this language's bracket pairs.
2996 let mut bracket_pair = None;
2997 let mut is_bracket_pair_start = false;
2998 let mut is_bracket_pair_end = false;
2999 if !text.is_empty() {
3000 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3001 // and they are removing the character that triggered IME popup.
3002 for (pair, enabled) in scope.brackets() {
3003 if !pair.close && !pair.surround {
3004 continue;
3005 }
3006
3007 if enabled && pair.start.ends_with(text.as_ref()) {
3008 bracket_pair = Some(pair.clone());
3009 is_bracket_pair_start = true;
3010 break;
3011 }
3012 if pair.end.as_str() == text.as_ref() {
3013 bracket_pair = Some(pair.clone());
3014 is_bracket_pair_end = true;
3015 break;
3016 }
3017 }
3018 }
3019
3020 if let Some(bracket_pair) = bracket_pair {
3021 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3022 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3023 let auto_surround =
3024 self.use_auto_surround && snapshot_settings.use_auto_surround;
3025 if selection.is_empty() {
3026 if is_bracket_pair_start {
3027 let prefix_len = bracket_pair.start.len() - text.len();
3028
3029 // If the inserted text is a suffix of an opening bracket and the
3030 // selection is preceded by the rest of the opening bracket, then
3031 // insert the closing bracket.
3032 let following_text_allows_autoclose = snapshot
3033 .chars_at(selection.start)
3034 .next()
3035 .map_or(true, |c| scope.should_autoclose_before(c));
3036 let preceding_text_matches_prefix = prefix_len == 0
3037 || (selection.start.column >= (prefix_len as u32)
3038 && snapshot.contains_str_at(
3039 Point::new(
3040 selection.start.row,
3041 selection.start.column - (prefix_len as u32),
3042 ),
3043 &bracket_pair.start[..prefix_len],
3044 ));
3045
3046 if autoclose
3047 && bracket_pair.close
3048 && following_text_allows_autoclose
3049 && preceding_text_matches_prefix
3050 {
3051 let anchor = snapshot.anchor_before(selection.end);
3052 new_selections.push((selection.map(|_| anchor), text.len()));
3053 new_autoclose_regions.push((
3054 anchor,
3055 text.len(),
3056 selection.id,
3057 bracket_pair.clone(),
3058 ));
3059 edits.push((
3060 selection.range(),
3061 format!("{}{}", text, bracket_pair.end).into(),
3062 ));
3063 bracket_inserted = true;
3064 continue;
3065 }
3066 }
3067
3068 if let Some(region) = autoclose_region {
3069 // If the selection is followed by an auto-inserted closing bracket,
3070 // then don't insert that closing bracket again; just move the selection
3071 // past the closing bracket.
3072 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3073 && text.as_ref() == region.pair.end.as_str();
3074 if should_skip {
3075 let anchor = snapshot.anchor_after(selection.end);
3076 new_selections
3077 .push((selection.map(|_| anchor), region.pair.end.len()));
3078 continue;
3079 }
3080 }
3081
3082 let always_treat_brackets_as_autoclosed = snapshot
3083 .settings_at(selection.start, cx)
3084 .always_treat_brackets_as_autoclosed;
3085 if always_treat_brackets_as_autoclosed
3086 && is_bracket_pair_end
3087 && snapshot.contains_str_at(selection.end, text.as_ref())
3088 {
3089 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3090 // and the inserted text is a closing bracket and the selection is followed
3091 // by the closing bracket then move the selection past the closing bracket.
3092 let anchor = snapshot.anchor_after(selection.end);
3093 new_selections.push((selection.map(|_| anchor), text.len()));
3094 continue;
3095 }
3096 }
3097 // If an opening bracket is 1 character long and is typed while
3098 // text is selected, then surround that text with the bracket pair.
3099 else if auto_surround
3100 && bracket_pair.surround
3101 && is_bracket_pair_start
3102 && bracket_pair.start.chars().count() == 1
3103 {
3104 edits.push((selection.start..selection.start, text.clone()));
3105 edits.push((
3106 selection.end..selection.end,
3107 bracket_pair.end.as_str().into(),
3108 ));
3109 bracket_inserted = true;
3110 new_selections.push((
3111 Selection {
3112 id: selection.id,
3113 start: snapshot.anchor_after(selection.start),
3114 end: snapshot.anchor_before(selection.end),
3115 reversed: selection.reversed,
3116 goal: selection.goal,
3117 },
3118 0,
3119 ));
3120 continue;
3121 }
3122 }
3123 }
3124
3125 if self.auto_replace_emoji_shortcode
3126 && selection.is_empty()
3127 && text.as_ref().ends_with(':')
3128 {
3129 if let Some(possible_emoji_short_code) =
3130 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3131 {
3132 if !possible_emoji_short_code.is_empty() {
3133 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3134 let emoji_shortcode_start = Point::new(
3135 selection.start.row,
3136 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3137 );
3138
3139 // Remove shortcode from buffer
3140 edits.push((
3141 emoji_shortcode_start..selection.start,
3142 "".to_string().into(),
3143 ));
3144 new_selections.push((
3145 Selection {
3146 id: selection.id,
3147 start: snapshot.anchor_after(emoji_shortcode_start),
3148 end: snapshot.anchor_before(selection.start),
3149 reversed: selection.reversed,
3150 goal: selection.goal,
3151 },
3152 0,
3153 ));
3154
3155 // Insert emoji
3156 let selection_start_anchor = snapshot.anchor_after(selection.start);
3157 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3158 edits.push((selection.start..selection.end, emoji.to_string().into()));
3159
3160 continue;
3161 }
3162 }
3163 }
3164 }
3165
3166 // If not handling any auto-close operation, then just replace the selected
3167 // text with the given input and move the selection to the end of the
3168 // newly inserted text.
3169 let anchor = snapshot.anchor_after(selection.end);
3170 if !self.linked_edit_ranges.is_empty() {
3171 let start_anchor = snapshot.anchor_before(selection.start);
3172
3173 let is_word_char = text.chars().next().map_or(true, |char| {
3174 let scope = snapshot.language_scope_at(start_anchor.to_offset(&snapshot));
3175 let kind = char_kind(&scope, char);
3176
3177 kind == CharKind::Word
3178 });
3179
3180 if is_word_char {
3181 if let Some(ranges) = self
3182 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3183 {
3184 for (buffer, edits) in ranges {
3185 linked_edits
3186 .entry(buffer.clone())
3187 .or_default()
3188 .extend(edits.into_iter().map(|range| (range, text.clone())));
3189 }
3190 }
3191 }
3192 }
3193
3194 new_selections.push((selection.map(|_| anchor), 0));
3195 edits.push((selection.start..selection.end, text.clone()));
3196 }
3197
3198 drop(snapshot);
3199
3200 self.transact(cx, |this, cx| {
3201 this.buffer.update(cx, |buffer, cx| {
3202 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3203 });
3204 for (buffer, edits) in linked_edits {
3205 buffer.update(cx, |buffer, cx| {
3206 let snapshot = buffer.snapshot();
3207 let edits = edits
3208 .into_iter()
3209 .map(|(range, text)| {
3210 use text::ToPoint as TP;
3211 let end_point = TP::to_point(&range.end, &snapshot);
3212 let start_point = TP::to_point(&range.start, &snapshot);
3213 (start_point..end_point, text)
3214 })
3215 .sorted_by_key(|(range, _)| range.start)
3216 .collect::<Vec<_>>();
3217 buffer.edit(edits, None, cx);
3218 })
3219 }
3220 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3221 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3222 let snapshot = this.buffer.read(cx).read(cx);
3223 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3224 .zip(new_selection_deltas)
3225 .map(|(selection, delta)| Selection {
3226 id: selection.id,
3227 start: selection.start + delta,
3228 end: selection.end + delta,
3229 reversed: selection.reversed,
3230 goal: SelectionGoal::None,
3231 })
3232 .collect::<Vec<_>>();
3233
3234 let mut i = 0;
3235 for (position, delta, selection_id, pair) in new_autoclose_regions {
3236 let position = position.to_offset(&snapshot) + delta;
3237 let start = snapshot.anchor_before(position);
3238 let end = snapshot.anchor_after(position);
3239 while let Some(existing_state) = this.autoclose_regions.get(i) {
3240 match existing_state.range.start.cmp(&start, &snapshot) {
3241 Ordering::Less => i += 1,
3242 Ordering::Greater => break,
3243 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3244 Ordering::Less => i += 1,
3245 Ordering::Equal => break,
3246 Ordering::Greater => break,
3247 },
3248 }
3249 }
3250 this.autoclose_regions.insert(
3251 i,
3252 AutocloseRegion {
3253 selection_id,
3254 range: start..end,
3255 pair,
3256 },
3257 );
3258 }
3259
3260 drop(snapshot);
3261 let had_active_inline_completion = this.has_active_inline_completion(cx);
3262 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3263 s.select(new_selections)
3264 });
3265
3266 if !bracket_inserted && EditorSettings::get_global(cx).use_on_type_format {
3267 if let Some(on_type_format_task) =
3268 this.trigger_on_type_formatting(text.to_string(), cx)
3269 {
3270 on_type_format_task.detach_and_log_err(cx);
3271 }
3272 }
3273
3274 let editor_settings = EditorSettings::get_global(cx);
3275 if bracket_inserted
3276 && (editor_settings.auto_signature_help
3277 || editor_settings.show_signature_help_after_edits)
3278 {
3279 this.show_signature_help(&ShowSignatureHelp, cx);
3280 }
3281
3282 let trigger_in_words = !had_active_inline_completion;
3283 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3284 linked_editing_ranges::refresh_linked_ranges(this, cx);
3285 this.refresh_inline_completion(true, cx);
3286 });
3287 }
3288
3289 fn find_possible_emoji_shortcode_at_position(
3290 snapshot: &MultiBufferSnapshot,
3291 position: Point,
3292 ) -> Option<String> {
3293 let mut chars = Vec::new();
3294 let mut found_colon = false;
3295 for char in snapshot.reversed_chars_at(position).take(100) {
3296 // Found a possible emoji shortcode in the middle of the buffer
3297 if found_colon {
3298 if char.is_whitespace() {
3299 chars.reverse();
3300 return Some(chars.iter().collect());
3301 }
3302 // If the previous character is not a whitespace, we are in the middle of a word
3303 // and we only want to complete the shortcode if the word is made up of other emojis
3304 let mut containing_word = String::new();
3305 for ch in snapshot
3306 .reversed_chars_at(position)
3307 .skip(chars.len() + 1)
3308 .take(100)
3309 {
3310 if ch.is_whitespace() {
3311 break;
3312 }
3313 containing_word.push(ch);
3314 }
3315 let containing_word = containing_word.chars().rev().collect::<String>();
3316 if util::word_consists_of_emojis(containing_word.as_str()) {
3317 chars.reverse();
3318 return Some(chars.iter().collect());
3319 }
3320 }
3321
3322 if char.is_whitespace() || !char.is_ascii() {
3323 return None;
3324 }
3325 if char == ':' {
3326 found_colon = true;
3327 } else {
3328 chars.push(char);
3329 }
3330 }
3331 // Found a possible emoji shortcode at the beginning of the buffer
3332 chars.reverse();
3333 Some(chars.iter().collect())
3334 }
3335
3336 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3337 self.transact(cx, |this, cx| {
3338 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3339 let selections = this.selections.all::<usize>(cx);
3340 let multi_buffer = this.buffer.read(cx);
3341 let buffer = multi_buffer.snapshot(cx);
3342 selections
3343 .iter()
3344 .map(|selection| {
3345 let start_point = selection.start.to_point(&buffer);
3346 let mut indent =
3347 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3348 indent.len = cmp::min(indent.len, start_point.column);
3349 let start = selection.start;
3350 let end = selection.end;
3351 let selection_is_empty = start == end;
3352 let language_scope = buffer.language_scope_at(start);
3353 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3354 &language_scope
3355 {
3356 let leading_whitespace_len = buffer
3357 .reversed_chars_at(start)
3358 .take_while(|c| c.is_whitespace() && *c != '\n')
3359 .map(|c| c.len_utf8())
3360 .sum::<usize>();
3361
3362 let trailing_whitespace_len = buffer
3363 .chars_at(end)
3364 .take_while(|c| c.is_whitespace() && *c != '\n')
3365 .map(|c| c.len_utf8())
3366 .sum::<usize>();
3367
3368 let insert_extra_newline =
3369 language.brackets().any(|(pair, enabled)| {
3370 let pair_start = pair.start.trim_end();
3371 let pair_end = pair.end.trim_start();
3372
3373 enabled
3374 && pair.newline
3375 && buffer.contains_str_at(
3376 end + trailing_whitespace_len,
3377 pair_end,
3378 )
3379 && buffer.contains_str_at(
3380 (start - leading_whitespace_len)
3381 .saturating_sub(pair_start.len()),
3382 pair_start,
3383 )
3384 });
3385
3386 // Comment extension on newline is allowed only for cursor selections
3387 let comment_delimiter = maybe!({
3388 if !selection_is_empty {
3389 return None;
3390 }
3391
3392 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3393 return None;
3394 }
3395
3396 let delimiters = language.line_comment_prefixes();
3397 let max_len_of_delimiter =
3398 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3399 let (snapshot, range) =
3400 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3401
3402 let mut index_of_first_non_whitespace = 0;
3403 let comment_candidate = snapshot
3404 .chars_for_range(range)
3405 .skip_while(|c| {
3406 let should_skip = c.is_whitespace();
3407 if should_skip {
3408 index_of_first_non_whitespace += 1;
3409 }
3410 should_skip
3411 })
3412 .take(max_len_of_delimiter)
3413 .collect::<String>();
3414 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3415 comment_candidate.starts_with(comment_prefix.as_ref())
3416 })?;
3417 let cursor_is_placed_after_comment_marker =
3418 index_of_first_non_whitespace + comment_prefix.len()
3419 <= start_point.column as usize;
3420 if cursor_is_placed_after_comment_marker {
3421 Some(comment_prefix.clone())
3422 } else {
3423 None
3424 }
3425 });
3426 (comment_delimiter, insert_extra_newline)
3427 } else {
3428 (None, false)
3429 };
3430
3431 let capacity_for_delimiter = comment_delimiter
3432 .as_deref()
3433 .map(str::len)
3434 .unwrap_or_default();
3435 let mut new_text =
3436 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3437 new_text.push_str("\n");
3438 new_text.extend(indent.chars());
3439 if let Some(delimiter) = &comment_delimiter {
3440 new_text.push_str(&delimiter);
3441 }
3442 if insert_extra_newline {
3443 new_text = new_text.repeat(2);
3444 }
3445
3446 let anchor = buffer.anchor_after(end);
3447 let new_selection = selection.map(|_| anchor);
3448 (
3449 (start..end, new_text),
3450 (insert_extra_newline, new_selection),
3451 )
3452 })
3453 .unzip()
3454 };
3455
3456 this.edit_with_autoindent(edits, cx);
3457 let buffer = this.buffer.read(cx).snapshot(cx);
3458 let new_selections = selection_fixup_info
3459 .into_iter()
3460 .map(|(extra_newline_inserted, new_selection)| {
3461 let mut cursor = new_selection.end.to_point(&buffer);
3462 if extra_newline_inserted {
3463 cursor.row -= 1;
3464 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3465 }
3466 new_selection.map(|_| cursor)
3467 })
3468 .collect();
3469
3470 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3471 this.refresh_inline_completion(true, cx);
3472 });
3473 }
3474
3475 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3476 let buffer = self.buffer.read(cx);
3477 let snapshot = buffer.snapshot(cx);
3478
3479 let mut edits = Vec::new();
3480 let mut rows = Vec::new();
3481
3482 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3483 let cursor = selection.head();
3484 let row = cursor.row;
3485
3486 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3487
3488 let newline = "\n".to_string();
3489 edits.push((start_of_line..start_of_line, newline));
3490
3491 rows.push(row + rows_inserted as u32);
3492 }
3493
3494 self.transact(cx, |editor, cx| {
3495 editor.edit(edits, cx);
3496
3497 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3498 let mut index = 0;
3499 s.move_cursors_with(|map, _, _| {
3500 let row = rows[index];
3501 index += 1;
3502
3503 let point = Point::new(row, 0);
3504 let boundary = map.next_line_boundary(point).1;
3505 let clipped = map.clip_point(boundary, Bias::Left);
3506
3507 (clipped, SelectionGoal::None)
3508 });
3509 });
3510
3511 let mut indent_edits = Vec::new();
3512 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3513 for row in rows {
3514 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3515 for (row, indent) in indents {
3516 if indent.len == 0 {
3517 continue;
3518 }
3519
3520 let text = match indent.kind {
3521 IndentKind::Space => " ".repeat(indent.len as usize),
3522 IndentKind::Tab => "\t".repeat(indent.len as usize),
3523 };
3524 let point = Point::new(row.0, 0);
3525 indent_edits.push((point..point, text));
3526 }
3527 }
3528 editor.edit(indent_edits, cx);
3529 });
3530 }
3531
3532 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3533 let buffer = self.buffer.read(cx);
3534 let snapshot = buffer.snapshot(cx);
3535
3536 let mut edits = Vec::new();
3537 let mut rows = Vec::new();
3538 let mut rows_inserted = 0;
3539
3540 for selection in self.selections.all_adjusted(cx) {
3541 let cursor = selection.head();
3542 let row = cursor.row;
3543
3544 let point = Point::new(row + 1, 0);
3545 let start_of_line = snapshot.clip_point(point, Bias::Left);
3546
3547 let newline = "\n".to_string();
3548 edits.push((start_of_line..start_of_line, newline));
3549
3550 rows_inserted += 1;
3551 rows.push(row + rows_inserted);
3552 }
3553
3554 self.transact(cx, |editor, cx| {
3555 editor.edit(edits, cx);
3556
3557 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3558 let mut index = 0;
3559 s.move_cursors_with(|map, _, _| {
3560 let row = rows[index];
3561 index += 1;
3562
3563 let point = Point::new(row, 0);
3564 let boundary = map.next_line_boundary(point).1;
3565 let clipped = map.clip_point(boundary, Bias::Left);
3566
3567 (clipped, SelectionGoal::None)
3568 });
3569 });
3570
3571 let mut indent_edits = Vec::new();
3572 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3573 for row in rows {
3574 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3575 for (row, indent) in indents {
3576 if indent.len == 0 {
3577 continue;
3578 }
3579
3580 let text = match indent.kind {
3581 IndentKind::Space => " ".repeat(indent.len as usize),
3582 IndentKind::Tab => "\t".repeat(indent.len as usize),
3583 };
3584 let point = Point::new(row.0, 0);
3585 indent_edits.push((point..point, text));
3586 }
3587 }
3588 editor.edit(indent_edits, cx);
3589 });
3590 }
3591
3592 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3593 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3594 original_indent_columns: Vec::new(),
3595 });
3596 self.insert_with_autoindent_mode(text, autoindent, cx);
3597 }
3598
3599 fn insert_with_autoindent_mode(
3600 &mut self,
3601 text: &str,
3602 autoindent_mode: Option<AutoindentMode>,
3603 cx: &mut ViewContext<Self>,
3604 ) {
3605 if self.read_only(cx) {
3606 return;
3607 }
3608
3609 let text: Arc<str> = text.into();
3610 self.transact(cx, |this, cx| {
3611 let old_selections = this.selections.all_adjusted(cx);
3612 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3613 let anchors = {
3614 let snapshot = buffer.read(cx);
3615 old_selections
3616 .iter()
3617 .map(|s| {
3618 let anchor = snapshot.anchor_after(s.head());
3619 s.map(|_| anchor)
3620 })
3621 .collect::<Vec<_>>()
3622 };
3623 buffer.edit(
3624 old_selections
3625 .iter()
3626 .map(|s| (s.start..s.end, text.clone())),
3627 autoindent_mode,
3628 cx,
3629 );
3630 anchors
3631 });
3632
3633 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3634 s.select_anchors(selection_anchors);
3635 })
3636 });
3637 }
3638
3639 fn trigger_completion_on_input(
3640 &mut self,
3641 text: &str,
3642 trigger_in_words: bool,
3643 cx: &mut ViewContext<Self>,
3644 ) {
3645 if self.is_completion_trigger(text, trigger_in_words, cx) {
3646 self.show_completions(
3647 &ShowCompletions {
3648 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3649 },
3650 cx,
3651 );
3652 } else {
3653 self.hide_context_menu(cx);
3654 }
3655 }
3656
3657 fn is_completion_trigger(
3658 &self,
3659 text: &str,
3660 trigger_in_words: bool,
3661 cx: &mut ViewContext<Self>,
3662 ) -> bool {
3663 let position = self.selections.newest_anchor().head();
3664 let multibuffer = self.buffer.read(cx);
3665 let Some(buffer) = position
3666 .buffer_id
3667 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3668 else {
3669 return false;
3670 };
3671
3672 if let Some(completion_provider) = &self.completion_provider {
3673 completion_provider.is_completion_trigger(
3674 &buffer,
3675 position.text_anchor,
3676 text,
3677 trigger_in_words,
3678 cx,
3679 )
3680 } else {
3681 false
3682 }
3683 }
3684
3685 /// If any empty selections is touching the start of its innermost containing autoclose
3686 /// region, expand it to select the brackets.
3687 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3688 let selections = self.selections.all::<usize>(cx);
3689 let buffer = self.buffer.read(cx).read(cx);
3690 let new_selections = self
3691 .selections_with_autoclose_regions(selections, &buffer)
3692 .map(|(mut selection, region)| {
3693 if !selection.is_empty() {
3694 return selection;
3695 }
3696
3697 if let Some(region) = region {
3698 let mut range = region.range.to_offset(&buffer);
3699 if selection.start == range.start && range.start >= region.pair.start.len() {
3700 range.start -= region.pair.start.len();
3701 if buffer.contains_str_at(range.start, ®ion.pair.start)
3702 && buffer.contains_str_at(range.end, ®ion.pair.end)
3703 {
3704 range.end += region.pair.end.len();
3705 selection.start = range.start;
3706 selection.end = range.end;
3707
3708 return selection;
3709 }
3710 }
3711 }
3712
3713 let always_treat_brackets_as_autoclosed = buffer
3714 .settings_at(selection.start, cx)
3715 .always_treat_brackets_as_autoclosed;
3716
3717 if !always_treat_brackets_as_autoclosed {
3718 return selection;
3719 }
3720
3721 if let Some(scope) = buffer.language_scope_at(selection.start) {
3722 for (pair, enabled) in scope.brackets() {
3723 if !enabled || !pair.close {
3724 continue;
3725 }
3726
3727 if buffer.contains_str_at(selection.start, &pair.end) {
3728 let pair_start_len = pair.start.len();
3729 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3730 {
3731 selection.start -= pair_start_len;
3732 selection.end += pair.end.len();
3733
3734 return selection;
3735 }
3736 }
3737 }
3738 }
3739
3740 selection
3741 })
3742 .collect();
3743
3744 drop(buffer);
3745 self.change_selections(None, cx, |selections| selections.select(new_selections));
3746 }
3747
3748 /// Iterate the given selections, and for each one, find the smallest surrounding
3749 /// autoclose region. This uses the ordering of the selections and the autoclose
3750 /// regions to avoid repeated comparisons.
3751 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3752 &'a self,
3753 selections: impl IntoIterator<Item = Selection<D>>,
3754 buffer: &'a MultiBufferSnapshot,
3755 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3756 let mut i = 0;
3757 let mut regions = self.autoclose_regions.as_slice();
3758 selections.into_iter().map(move |selection| {
3759 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3760
3761 let mut enclosing = None;
3762 while let Some(pair_state) = regions.get(i) {
3763 if pair_state.range.end.to_offset(buffer) < range.start {
3764 regions = ®ions[i + 1..];
3765 i = 0;
3766 } else if pair_state.range.start.to_offset(buffer) > range.end {
3767 break;
3768 } else {
3769 if pair_state.selection_id == selection.id {
3770 enclosing = Some(pair_state);
3771 }
3772 i += 1;
3773 }
3774 }
3775
3776 (selection.clone(), enclosing)
3777 })
3778 }
3779
3780 /// Remove any autoclose regions that no longer contain their selection.
3781 fn invalidate_autoclose_regions(
3782 &mut self,
3783 mut selections: &[Selection<Anchor>],
3784 buffer: &MultiBufferSnapshot,
3785 ) {
3786 self.autoclose_regions.retain(|state| {
3787 let mut i = 0;
3788 while let Some(selection) = selections.get(i) {
3789 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3790 selections = &selections[1..];
3791 continue;
3792 }
3793 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3794 break;
3795 }
3796 if selection.id == state.selection_id {
3797 return true;
3798 } else {
3799 i += 1;
3800 }
3801 }
3802 false
3803 });
3804 }
3805
3806 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3807 let offset = position.to_offset(buffer);
3808 let (word_range, kind) = buffer.surrounding_word(offset);
3809 if offset > word_range.start && kind == Some(CharKind::Word) {
3810 Some(
3811 buffer
3812 .text_for_range(word_range.start..offset)
3813 .collect::<String>(),
3814 )
3815 } else {
3816 None
3817 }
3818 }
3819
3820 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3821 self.refresh_inlay_hints(
3822 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3823 cx,
3824 );
3825 }
3826
3827 pub fn inlay_hints_enabled(&self) -> bool {
3828 self.inlay_hint_cache.enabled
3829 }
3830
3831 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3832 if self.project.is_none() || self.mode != EditorMode::Full {
3833 return;
3834 }
3835
3836 let reason_description = reason.description();
3837 let ignore_debounce = matches!(
3838 reason,
3839 InlayHintRefreshReason::SettingsChange(_)
3840 | InlayHintRefreshReason::Toggle(_)
3841 | InlayHintRefreshReason::ExcerptsRemoved(_)
3842 );
3843 let (invalidate_cache, required_languages) = match reason {
3844 InlayHintRefreshReason::Toggle(enabled) => {
3845 self.inlay_hint_cache.enabled = enabled;
3846 if enabled {
3847 (InvalidationStrategy::RefreshRequested, None)
3848 } else {
3849 self.inlay_hint_cache.clear();
3850 self.splice_inlays(
3851 self.visible_inlay_hints(cx)
3852 .iter()
3853 .map(|inlay| inlay.id)
3854 .collect(),
3855 Vec::new(),
3856 cx,
3857 );
3858 return;
3859 }
3860 }
3861 InlayHintRefreshReason::SettingsChange(new_settings) => {
3862 match self.inlay_hint_cache.update_settings(
3863 &self.buffer,
3864 new_settings,
3865 self.visible_inlay_hints(cx),
3866 cx,
3867 ) {
3868 ControlFlow::Break(Some(InlaySplice {
3869 to_remove,
3870 to_insert,
3871 })) => {
3872 self.splice_inlays(to_remove, to_insert, cx);
3873 return;
3874 }
3875 ControlFlow::Break(None) => return,
3876 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3877 }
3878 }
3879 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3880 if let Some(InlaySplice {
3881 to_remove,
3882 to_insert,
3883 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3884 {
3885 self.splice_inlays(to_remove, to_insert, cx);
3886 }
3887 return;
3888 }
3889 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3890 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3891 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3892 }
3893 InlayHintRefreshReason::RefreshRequested => {
3894 (InvalidationStrategy::RefreshRequested, None)
3895 }
3896 };
3897
3898 if let Some(InlaySplice {
3899 to_remove,
3900 to_insert,
3901 }) = self.inlay_hint_cache.spawn_hint_refresh(
3902 reason_description,
3903 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3904 invalidate_cache,
3905 ignore_debounce,
3906 cx,
3907 ) {
3908 self.splice_inlays(to_remove, to_insert, cx);
3909 }
3910 }
3911
3912 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3913 self.display_map
3914 .read(cx)
3915 .current_inlays()
3916 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3917 .cloned()
3918 .collect()
3919 }
3920
3921 pub fn excerpts_for_inlay_hints_query(
3922 &self,
3923 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3924 cx: &mut ViewContext<Editor>,
3925 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3926 let Some(project) = self.project.as_ref() else {
3927 return HashMap::default();
3928 };
3929 let project = project.read(cx);
3930 let multi_buffer = self.buffer().read(cx);
3931 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3932 let multi_buffer_visible_start = self
3933 .scroll_manager
3934 .anchor()
3935 .anchor
3936 .to_point(&multi_buffer_snapshot);
3937 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3938 multi_buffer_visible_start
3939 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3940 Bias::Left,
3941 );
3942 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3943 multi_buffer
3944 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3945 .into_iter()
3946 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3947 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3948 let buffer = buffer_handle.read(cx);
3949 let buffer_file = project::File::from_dyn(buffer.file())?;
3950 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3951 let worktree_entry = buffer_worktree
3952 .read(cx)
3953 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3954 if worktree_entry.is_ignored {
3955 return None;
3956 }
3957
3958 let language = buffer.language()?;
3959 if let Some(restrict_to_languages) = restrict_to_languages {
3960 if !restrict_to_languages.contains(language) {
3961 return None;
3962 }
3963 }
3964 Some((
3965 excerpt_id,
3966 (
3967 buffer_handle,
3968 buffer.version().clone(),
3969 excerpt_visible_range,
3970 ),
3971 ))
3972 })
3973 .collect()
3974 }
3975
3976 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3977 TextLayoutDetails {
3978 text_system: cx.text_system().clone(),
3979 editor_style: self.style.clone().unwrap(),
3980 rem_size: cx.rem_size(),
3981 scroll_anchor: self.scroll_manager.anchor(),
3982 visible_rows: self.visible_line_count(),
3983 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3984 }
3985 }
3986
3987 fn splice_inlays(
3988 &self,
3989 to_remove: Vec<InlayId>,
3990 to_insert: Vec<Inlay>,
3991 cx: &mut ViewContext<Self>,
3992 ) {
3993 self.display_map.update(cx, |display_map, cx| {
3994 display_map.splice_inlays(to_remove, to_insert, cx);
3995 });
3996 cx.notify();
3997 }
3998
3999 fn trigger_on_type_formatting(
4000 &self,
4001 input: String,
4002 cx: &mut ViewContext<Self>,
4003 ) -> Option<Task<Result<()>>> {
4004 if input.len() != 1 {
4005 return None;
4006 }
4007
4008 let project = self.project.as_ref()?;
4009 let position = self.selections.newest_anchor().head();
4010 let (buffer, buffer_position) = self
4011 .buffer
4012 .read(cx)
4013 .text_anchor_for_position(position, cx)?;
4014
4015 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4016 // hence we do LSP request & edit on host side only — add formats to host's history.
4017 let push_to_lsp_host_history = true;
4018 // If this is not the host, append its history with new edits.
4019 let push_to_client_history = project.read(cx).is_remote();
4020
4021 let on_type_formatting = project.update(cx, |project, cx| {
4022 project.on_type_format(
4023 buffer.clone(),
4024 buffer_position,
4025 input,
4026 push_to_lsp_host_history,
4027 cx,
4028 )
4029 });
4030 Some(cx.spawn(|editor, mut cx| async move {
4031 if let Some(transaction) = on_type_formatting.await? {
4032 if push_to_client_history {
4033 buffer
4034 .update(&mut cx, |buffer, _| {
4035 buffer.push_transaction(transaction, Instant::now());
4036 })
4037 .ok();
4038 }
4039 editor.update(&mut cx, |editor, cx| {
4040 editor.refresh_document_highlights(cx);
4041 })?;
4042 }
4043 Ok(())
4044 }))
4045 }
4046
4047 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4048 if self.pending_rename.is_some() {
4049 return;
4050 }
4051
4052 let Some(provider) = self.completion_provider.as_ref() else {
4053 return;
4054 };
4055
4056 let position = self.selections.newest_anchor().head();
4057 let (buffer, buffer_position) =
4058 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4059 output
4060 } else {
4061 return;
4062 };
4063
4064 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4065 let is_followup_invoke = {
4066 let context_menu_state = self.context_menu.read();
4067 matches!(
4068 context_menu_state.deref(),
4069 Some(ContextMenu::Completions(_))
4070 )
4071 };
4072 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4073 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4074 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(&trigger) => {
4075 CompletionTriggerKind::TRIGGER_CHARACTER
4076 }
4077
4078 _ => CompletionTriggerKind::INVOKED,
4079 };
4080 let completion_context = CompletionContext {
4081 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4082 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4083 Some(String::from(trigger))
4084 } else {
4085 None
4086 }
4087 }),
4088 trigger_kind,
4089 };
4090 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4091
4092 let id = post_inc(&mut self.next_completion_id);
4093 let task = cx.spawn(|this, mut cx| {
4094 async move {
4095 this.update(&mut cx, |this, _| {
4096 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4097 })?;
4098 let completions = completions.await.log_err();
4099 let menu = if let Some(completions) = completions {
4100 let mut menu = CompletionsMenu {
4101 id,
4102 initial_position: position,
4103 match_candidates: completions
4104 .iter()
4105 .enumerate()
4106 .map(|(id, completion)| {
4107 StringMatchCandidate::new(
4108 id,
4109 completion.label.text[completion.label.filter_range.clone()]
4110 .into(),
4111 )
4112 })
4113 .collect(),
4114 buffer: buffer.clone(),
4115 completions: Arc::new(RwLock::new(completions.into())),
4116 matches: Vec::new().into(),
4117 selected_item: 0,
4118 scroll_handle: UniformListScrollHandle::new(),
4119 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4120 DebouncedDelay::new(),
4121 )),
4122 };
4123 menu.filter(query.as_deref(), cx.background_executor().clone())
4124 .await;
4125
4126 if menu.matches.is_empty() {
4127 None
4128 } else {
4129 this.update(&mut cx, |editor, cx| {
4130 let completions = menu.completions.clone();
4131 let matches = menu.matches.clone();
4132
4133 let delay_ms = EditorSettings::get_global(cx)
4134 .completion_documentation_secondary_query_debounce;
4135 let delay = Duration::from_millis(delay_ms);
4136 editor
4137 .completion_documentation_pre_resolve_debounce
4138 .fire_new(delay, cx, |editor, cx| {
4139 CompletionsMenu::pre_resolve_completion_documentation(
4140 buffer,
4141 completions,
4142 matches,
4143 editor,
4144 cx,
4145 )
4146 });
4147 })
4148 .ok();
4149 Some(menu)
4150 }
4151 } else {
4152 None
4153 };
4154
4155 this.update(&mut cx, |this, cx| {
4156 let mut context_menu = this.context_menu.write();
4157 match context_menu.as_ref() {
4158 None => {}
4159
4160 Some(ContextMenu::Completions(prev_menu)) => {
4161 if prev_menu.id > id {
4162 return;
4163 }
4164 }
4165
4166 _ => return,
4167 }
4168
4169 if this.focus_handle.is_focused(cx) && menu.is_some() {
4170 let menu = menu.unwrap();
4171 *context_menu = Some(ContextMenu::Completions(menu));
4172 drop(context_menu);
4173 this.discard_inline_completion(false, cx);
4174 cx.notify();
4175 } else if this.completion_tasks.len() <= 1 {
4176 // If there are no more completion tasks and the last menu was
4177 // empty, we should hide it. If it was already hidden, we should
4178 // also show the copilot completion when available.
4179 drop(context_menu);
4180 if this.hide_context_menu(cx).is_none() {
4181 this.update_visible_inline_completion(cx);
4182 }
4183 }
4184 })?;
4185
4186 Ok::<_, anyhow::Error>(())
4187 }
4188 .log_err()
4189 });
4190
4191 self.completion_tasks.push((id, task));
4192 }
4193
4194 pub fn confirm_completion(
4195 &mut self,
4196 action: &ConfirmCompletion,
4197 cx: &mut ViewContext<Self>,
4198 ) -> Option<Task<Result<()>>> {
4199 use language::ToOffset as _;
4200
4201 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4202 menu
4203 } else {
4204 return None;
4205 };
4206
4207 let mat = completions_menu
4208 .matches
4209 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
4210 let buffer_handle = completions_menu.buffer;
4211 let completions = completions_menu.completions.read();
4212 let completion = completions.get(mat.candidate_id)?;
4213 cx.stop_propagation();
4214
4215 let snippet;
4216 let text;
4217
4218 if completion.is_snippet() {
4219 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4220 text = snippet.as_ref().unwrap().text.clone();
4221 } else {
4222 snippet = None;
4223 text = completion.new_text.clone();
4224 };
4225 let selections = self.selections.all::<usize>(cx);
4226 let buffer = buffer_handle.read(cx);
4227 let old_range = completion.old_range.to_offset(buffer);
4228 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4229
4230 let newest_selection = self.selections.newest_anchor();
4231 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4232 return None;
4233 }
4234
4235 let lookbehind = newest_selection
4236 .start
4237 .text_anchor
4238 .to_offset(buffer)
4239 .saturating_sub(old_range.start);
4240 let lookahead = old_range
4241 .end
4242 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4243 let mut common_prefix_len = old_text
4244 .bytes()
4245 .zip(text.bytes())
4246 .take_while(|(a, b)| a == b)
4247 .count();
4248
4249 let snapshot = self.buffer.read(cx).snapshot(cx);
4250 let mut range_to_replace: Option<Range<isize>> = None;
4251 let mut ranges = Vec::new();
4252 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4253 for selection in &selections {
4254 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4255 let start = selection.start.saturating_sub(lookbehind);
4256 let end = selection.end + lookahead;
4257 if selection.id == newest_selection.id {
4258 range_to_replace = Some(
4259 ((start + common_prefix_len) as isize - selection.start as isize)
4260 ..(end as isize - selection.start as isize),
4261 );
4262 }
4263 ranges.push(start + common_prefix_len..end);
4264 } else {
4265 common_prefix_len = 0;
4266 ranges.clear();
4267 ranges.extend(selections.iter().map(|s| {
4268 if s.id == newest_selection.id {
4269 range_to_replace = Some(
4270 old_range.start.to_offset_utf16(&snapshot).0 as isize
4271 - selection.start as isize
4272 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4273 - selection.start as isize,
4274 );
4275 old_range.clone()
4276 } else {
4277 s.start..s.end
4278 }
4279 }));
4280 break;
4281 }
4282 if !self.linked_edit_ranges.is_empty() {
4283 let start_anchor = snapshot.anchor_before(selection.head());
4284 let end_anchor = snapshot.anchor_after(selection.tail());
4285 if let Some(ranges) = self
4286 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4287 {
4288 for (buffer, edits) in ranges {
4289 linked_edits.entry(buffer.clone()).or_default().extend(
4290 edits
4291 .into_iter()
4292 .map(|range| (range, text[common_prefix_len..].to_owned())),
4293 );
4294 }
4295 }
4296 }
4297 }
4298 let text = &text[common_prefix_len..];
4299
4300 cx.emit(EditorEvent::InputHandled {
4301 utf16_range_to_replace: range_to_replace,
4302 text: text.into(),
4303 });
4304
4305 self.transact(cx, |this, cx| {
4306 if let Some(mut snippet) = snippet {
4307 snippet.text = text.to_string();
4308 for tabstop in snippet.tabstops.iter_mut().flatten() {
4309 tabstop.start -= common_prefix_len as isize;
4310 tabstop.end -= common_prefix_len as isize;
4311 }
4312
4313 this.insert_snippet(&ranges, snippet, cx).log_err();
4314 } else {
4315 this.buffer.update(cx, |buffer, cx| {
4316 buffer.edit(
4317 ranges.iter().map(|range| (range.clone(), text)),
4318 this.autoindent_mode.clone(),
4319 cx,
4320 );
4321 });
4322 }
4323 for (buffer, edits) in linked_edits {
4324 buffer.update(cx, |buffer, cx| {
4325 let snapshot = buffer.snapshot();
4326 let edits = edits
4327 .into_iter()
4328 .map(|(range, text)| {
4329 use text::ToPoint as TP;
4330 let end_point = TP::to_point(&range.end, &snapshot);
4331 let start_point = TP::to_point(&range.start, &snapshot);
4332 (start_point..end_point, text)
4333 })
4334 .sorted_by_key(|(range, _)| range.start)
4335 .collect::<Vec<_>>();
4336 buffer.edit(edits, None, cx);
4337 })
4338 }
4339
4340 this.refresh_inline_completion(true, cx);
4341 });
4342
4343 if let Some(confirm) = completion.confirm.as_ref() {
4344 (confirm)(cx);
4345 }
4346
4347 if completion.show_new_completions_on_confirm {
4348 self.show_completions(&ShowCompletions { trigger: None }, cx);
4349 }
4350
4351 let provider = self.completion_provider.as_ref()?;
4352 let apply_edits = provider.apply_additional_edits_for_completion(
4353 buffer_handle,
4354 completion.clone(),
4355 true,
4356 cx,
4357 );
4358
4359 let editor_settings = EditorSettings::get_global(cx);
4360 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4361 // After the code completion is finished, users often want to know what signatures are needed.
4362 // so we should automatically call signature_help
4363 self.show_signature_help(&ShowSignatureHelp, cx);
4364 }
4365
4366 Some(cx.foreground_executor().spawn(async move {
4367 apply_edits.await?;
4368 Ok(())
4369 }))
4370 }
4371
4372 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4373 let mut context_menu = self.context_menu.write();
4374 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4375 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4376 // Toggle if we're selecting the same one
4377 *context_menu = None;
4378 cx.notify();
4379 return;
4380 } else {
4381 // Otherwise, clear it and start a new one
4382 *context_menu = None;
4383 cx.notify();
4384 }
4385 }
4386 drop(context_menu);
4387 let snapshot = self.snapshot(cx);
4388 let deployed_from_indicator = action.deployed_from_indicator;
4389 let mut task = self.code_actions_task.take();
4390 let action = action.clone();
4391 cx.spawn(|editor, mut cx| async move {
4392 while let Some(prev_task) = task {
4393 prev_task.await;
4394 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4395 }
4396
4397 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4398 if editor.focus_handle.is_focused(cx) {
4399 let multibuffer_point = action
4400 .deployed_from_indicator
4401 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4402 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4403 let (buffer, buffer_row) = snapshot
4404 .buffer_snapshot
4405 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4406 .and_then(|(buffer_snapshot, range)| {
4407 editor
4408 .buffer
4409 .read(cx)
4410 .buffer(buffer_snapshot.remote_id())
4411 .map(|buffer| (buffer, range.start.row))
4412 })?;
4413 let (_, code_actions) = editor
4414 .available_code_actions
4415 .clone()
4416 .and_then(|(location, code_actions)| {
4417 let snapshot = location.buffer.read(cx).snapshot();
4418 let point_range = location.range.to_point(&snapshot);
4419 let point_range = point_range.start.row..=point_range.end.row;
4420 if point_range.contains(&buffer_row) {
4421 Some((location, code_actions))
4422 } else {
4423 None
4424 }
4425 })
4426 .unzip();
4427 let buffer_id = buffer.read(cx).remote_id();
4428 let tasks = editor
4429 .tasks
4430 .get(&(buffer_id, buffer_row))
4431 .map(|t| Arc::new(t.to_owned()));
4432 if tasks.is_none() && code_actions.is_none() {
4433 return None;
4434 }
4435
4436 editor.completion_tasks.clear();
4437 editor.discard_inline_completion(false, cx);
4438 let task_context =
4439 tasks
4440 .as_ref()
4441 .zip(editor.project.clone())
4442 .map(|(tasks, project)| {
4443 let position = Point::new(buffer_row, tasks.column);
4444 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4445 let location = Location {
4446 buffer: buffer.clone(),
4447 range: range_start..range_start,
4448 };
4449 // Fill in the environmental variables from the tree-sitter captures
4450 let mut captured_task_variables = TaskVariables::default();
4451 for (capture_name, value) in tasks.extra_variables.clone() {
4452 captured_task_variables.insert(
4453 task::VariableName::Custom(capture_name.into()),
4454 value.clone(),
4455 );
4456 }
4457 project.update(cx, |project, cx| {
4458 project.task_context_for_location(
4459 captured_task_variables,
4460 location,
4461 cx,
4462 )
4463 })
4464 });
4465
4466 Some(cx.spawn(|editor, mut cx| async move {
4467 let task_context = match task_context {
4468 Some(task_context) => task_context.await,
4469 None => None,
4470 };
4471 let resolved_tasks =
4472 tasks.zip(task_context).map(|(tasks, task_context)| {
4473 Arc::new(ResolvedTasks {
4474 templates: tasks
4475 .templates
4476 .iter()
4477 .filter_map(|(kind, template)| {
4478 template
4479 .resolve_task(&kind.to_id_base(), &task_context)
4480 .map(|task| (kind.clone(), task))
4481 })
4482 .collect(),
4483 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4484 multibuffer_point.row,
4485 tasks.column,
4486 )),
4487 })
4488 });
4489 let spawn_straight_away = resolved_tasks
4490 .as_ref()
4491 .map_or(false, |tasks| tasks.templates.len() == 1)
4492 && code_actions
4493 .as_ref()
4494 .map_or(true, |actions| actions.is_empty());
4495 if let Some(task) = editor
4496 .update(&mut cx, |editor, cx| {
4497 *editor.context_menu.write() =
4498 Some(ContextMenu::CodeActions(CodeActionsMenu {
4499 buffer,
4500 actions: CodeActionContents {
4501 tasks: resolved_tasks,
4502 actions: code_actions,
4503 },
4504 selected_item: Default::default(),
4505 scroll_handle: UniformListScrollHandle::default(),
4506 deployed_from_indicator,
4507 }));
4508 if spawn_straight_away {
4509 if let Some(task) = editor.confirm_code_action(
4510 &ConfirmCodeAction { item_ix: Some(0) },
4511 cx,
4512 ) {
4513 cx.notify();
4514 return task;
4515 }
4516 }
4517 cx.notify();
4518 Task::ready(Ok(()))
4519 })
4520 .ok()
4521 {
4522 task.await
4523 } else {
4524 Ok(())
4525 }
4526 }))
4527 } else {
4528 Some(Task::ready(Ok(())))
4529 }
4530 })?;
4531 if let Some(task) = spawned_test_task {
4532 task.await?;
4533 }
4534
4535 Ok::<_, anyhow::Error>(())
4536 })
4537 .detach_and_log_err(cx);
4538 }
4539
4540 pub fn confirm_code_action(
4541 &mut self,
4542 action: &ConfirmCodeAction,
4543 cx: &mut ViewContext<Self>,
4544 ) -> Option<Task<Result<()>>> {
4545 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4546 menu
4547 } else {
4548 return None;
4549 };
4550 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4551 let action = actions_menu.actions.get(action_ix)?;
4552 let title = action.label();
4553 let buffer = actions_menu.buffer;
4554 let workspace = self.workspace()?;
4555
4556 match action {
4557 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4558 workspace.update(cx, |workspace, cx| {
4559 workspace::tasks::schedule_resolved_task(
4560 workspace,
4561 task_source_kind,
4562 resolved_task,
4563 false,
4564 cx,
4565 );
4566
4567 Some(Task::ready(Ok(())))
4568 })
4569 }
4570 CodeActionsItem::CodeAction(action) => {
4571 let apply_code_actions = workspace
4572 .read(cx)
4573 .project()
4574 .clone()
4575 .update(cx, |project, cx| {
4576 project.apply_code_action(buffer, action, true, cx)
4577 });
4578 let workspace = workspace.downgrade();
4579 Some(cx.spawn(|editor, cx| async move {
4580 let project_transaction = apply_code_actions.await?;
4581 Self::open_project_transaction(
4582 &editor,
4583 workspace,
4584 project_transaction,
4585 title,
4586 cx,
4587 )
4588 .await
4589 }))
4590 }
4591 }
4592 }
4593
4594 pub async fn open_project_transaction(
4595 this: &WeakView<Editor>,
4596 workspace: WeakView<Workspace>,
4597 transaction: ProjectTransaction,
4598 title: String,
4599 mut cx: AsyncWindowContext,
4600 ) -> Result<()> {
4601 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4602
4603 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4604 cx.update(|cx| {
4605 entries.sort_unstable_by_key(|(buffer, _)| {
4606 buffer.read(cx).file().map(|f| f.path().clone())
4607 });
4608 })?;
4609
4610 // If the project transaction's edits are all contained within this editor, then
4611 // avoid opening a new editor to display them.
4612
4613 if let Some((buffer, transaction)) = entries.first() {
4614 if entries.len() == 1 {
4615 let excerpt = this.update(&mut cx, |editor, cx| {
4616 editor
4617 .buffer()
4618 .read(cx)
4619 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4620 })?;
4621 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4622 if excerpted_buffer == *buffer {
4623 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4624 let excerpt_range = excerpt_range.to_offset(buffer);
4625 buffer
4626 .edited_ranges_for_transaction::<usize>(transaction)
4627 .all(|range| {
4628 excerpt_range.start <= range.start
4629 && excerpt_range.end >= range.end
4630 })
4631 })?;
4632
4633 if all_edits_within_excerpt {
4634 return Ok(());
4635 }
4636 }
4637 }
4638 }
4639 } else {
4640 return Ok(());
4641 }
4642
4643 let mut ranges_to_highlight = Vec::new();
4644 let excerpt_buffer = cx.new_model(|cx| {
4645 let mut multibuffer =
4646 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4647 for (buffer_handle, transaction) in &entries {
4648 let buffer = buffer_handle.read(cx);
4649 ranges_to_highlight.extend(
4650 multibuffer.push_excerpts_with_context_lines(
4651 buffer_handle.clone(),
4652 buffer
4653 .edited_ranges_for_transaction::<usize>(transaction)
4654 .collect(),
4655 DEFAULT_MULTIBUFFER_CONTEXT,
4656 cx,
4657 ),
4658 );
4659 }
4660 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4661 multibuffer
4662 })?;
4663
4664 workspace.update(&mut cx, |workspace, cx| {
4665 let project = workspace.project().clone();
4666 let editor =
4667 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4668 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4669 editor.update(cx, |editor, cx| {
4670 editor.highlight_background::<Self>(
4671 &ranges_to_highlight,
4672 |theme| theme.editor_highlighted_line_background,
4673 cx,
4674 );
4675 });
4676 })?;
4677
4678 Ok(())
4679 }
4680
4681 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4682 let project = self.project.clone()?;
4683 let buffer = self.buffer.read(cx);
4684 let newest_selection = self.selections.newest_anchor().clone();
4685 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4686 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4687 if start_buffer != end_buffer {
4688 return None;
4689 }
4690
4691 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4692 cx.background_executor()
4693 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4694 .await;
4695
4696 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4697 project.code_actions(&start_buffer, start..end, cx)
4698 }) {
4699 code_actions.await
4700 } else {
4701 Vec::new()
4702 };
4703
4704 this.update(&mut cx, |this, cx| {
4705 this.available_code_actions = if actions.is_empty() {
4706 None
4707 } else {
4708 Some((
4709 Location {
4710 buffer: start_buffer,
4711 range: start..end,
4712 },
4713 actions.into(),
4714 ))
4715 };
4716 cx.notify();
4717 })
4718 .log_err();
4719 }));
4720 None
4721 }
4722
4723 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4724 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4725 self.show_git_blame_inline = false;
4726
4727 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4728 cx.background_executor().timer(delay).await;
4729
4730 this.update(&mut cx, |this, cx| {
4731 this.show_git_blame_inline = true;
4732 cx.notify();
4733 })
4734 .log_err();
4735 }));
4736 }
4737 }
4738
4739 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4740 if self.pending_rename.is_some() {
4741 return None;
4742 }
4743
4744 let project = self.project.clone()?;
4745 let buffer = self.buffer.read(cx);
4746 let newest_selection = self.selections.newest_anchor().clone();
4747 let cursor_position = newest_selection.head();
4748 let (cursor_buffer, cursor_buffer_position) =
4749 buffer.text_anchor_for_position(cursor_position, cx)?;
4750 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4751 if cursor_buffer != tail_buffer {
4752 return None;
4753 }
4754
4755 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4756 cx.background_executor()
4757 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4758 .await;
4759
4760 let highlights = if let Some(highlights) = project
4761 .update(&mut cx, |project, cx| {
4762 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4763 })
4764 .log_err()
4765 {
4766 highlights.await.log_err()
4767 } else {
4768 None
4769 };
4770
4771 if let Some(highlights) = highlights {
4772 this.update(&mut cx, |this, cx| {
4773 if this.pending_rename.is_some() {
4774 return;
4775 }
4776
4777 let buffer_id = cursor_position.buffer_id;
4778 let buffer = this.buffer.read(cx);
4779 if !buffer
4780 .text_anchor_for_position(cursor_position, cx)
4781 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4782 {
4783 return;
4784 }
4785
4786 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4787 let mut write_ranges = Vec::new();
4788 let mut read_ranges = Vec::new();
4789 for highlight in highlights {
4790 for (excerpt_id, excerpt_range) in
4791 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4792 {
4793 let start = highlight
4794 .range
4795 .start
4796 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4797 let end = highlight
4798 .range
4799 .end
4800 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4801 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4802 continue;
4803 }
4804
4805 let range = Anchor {
4806 buffer_id,
4807 excerpt_id: excerpt_id,
4808 text_anchor: start,
4809 }..Anchor {
4810 buffer_id,
4811 excerpt_id,
4812 text_anchor: end,
4813 };
4814 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4815 write_ranges.push(range);
4816 } else {
4817 read_ranges.push(range);
4818 }
4819 }
4820 }
4821
4822 this.highlight_background::<DocumentHighlightRead>(
4823 &read_ranges,
4824 |theme| theme.editor_document_highlight_read_background,
4825 cx,
4826 );
4827 this.highlight_background::<DocumentHighlightWrite>(
4828 &write_ranges,
4829 |theme| theme.editor_document_highlight_write_background,
4830 cx,
4831 );
4832 cx.notify();
4833 })
4834 .log_err();
4835 }
4836 }));
4837 None
4838 }
4839
4840 fn refresh_inline_completion(
4841 &mut self,
4842 debounce: bool,
4843 cx: &mut ViewContext<Self>,
4844 ) -> Option<()> {
4845 let provider = self.inline_completion_provider()?;
4846 let cursor = self.selections.newest_anchor().head();
4847 let (buffer, cursor_buffer_position) =
4848 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4849 if !self.show_inline_completions
4850 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4851 {
4852 self.discard_inline_completion(false, cx);
4853 return None;
4854 }
4855
4856 self.update_visible_inline_completion(cx);
4857 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4858 Some(())
4859 }
4860
4861 fn cycle_inline_completion(
4862 &mut self,
4863 direction: Direction,
4864 cx: &mut ViewContext<Self>,
4865 ) -> Option<()> {
4866 let provider = self.inline_completion_provider()?;
4867 let cursor = self.selections.newest_anchor().head();
4868 let (buffer, cursor_buffer_position) =
4869 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4870 if !self.show_inline_completions
4871 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4872 {
4873 return None;
4874 }
4875
4876 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4877 self.update_visible_inline_completion(cx);
4878
4879 Some(())
4880 }
4881
4882 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4883 if !self.has_active_inline_completion(cx) {
4884 self.refresh_inline_completion(false, cx);
4885 return;
4886 }
4887
4888 self.update_visible_inline_completion(cx);
4889 }
4890
4891 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4892 self.show_cursor_names(cx);
4893 }
4894
4895 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4896 self.show_cursor_names = true;
4897 cx.notify();
4898 cx.spawn(|this, mut cx| async move {
4899 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4900 this.update(&mut cx, |this, cx| {
4901 this.show_cursor_names = false;
4902 cx.notify()
4903 })
4904 .ok()
4905 })
4906 .detach();
4907 }
4908
4909 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4910 if self.has_active_inline_completion(cx) {
4911 self.cycle_inline_completion(Direction::Next, cx);
4912 } else {
4913 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4914 if is_copilot_disabled {
4915 cx.propagate();
4916 }
4917 }
4918 }
4919
4920 pub fn previous_inline_completion(
4921 &mut self,
4922 _: &PreviousInlineCompletion,
4923 cx: &mut ViewContext<Self>,
4924 ) {
4925 if self.has_active_inline_completion(cx) {
4926 self.cycle_inline_completion(Direction::Prev, cx);
4927 } else {
4928 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4929 if is_copilot_disabled {
4930 cx.propagate();
4931 }
4932 }
4933 }
4934
4935 pub fn accept_inline_completion(
4936 &mut self,
4937 _: &AcceptInlineCompletion,
4938 cx: &mut ViewContext<Self>,
4939 ) {
4940 let Some(completion) = self.take_active_inline_completion(cx) else {
4941 return;
4942 };
4943 if let Some(provider) = self.inline_completion_provider() {
4944 provider.accept(cx);
4945 }
4946
4947 cx.emit(EditorEvent::InputHandled {
4948 utf16_range_to_replace: None,
4949 text: completion.text.to_string().into(),
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) = 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 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4983 self.refresh_inline_completion(true, cx);
4984 cx.notify();
4985 }
4986 }
4987 }
4988
4989 fn discard_inline_completion(
4990 &mut self,
4991 should_report_inline_completion_event: bool,
4992 cx: &mut ViewContext<Self>,
4993 ) -> bool {
4994 if let Some(provider) = self.inline_completion_provider() {
4995 provider.discard(should_report_inline_completion_event, cx);
4996 }
4997
4998 self.take_active_inline_completion(cx).is_some()
4999 }
5000
5001 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5002 if let Some(completion) = self.active_inline_completion.as_ref() {
5003 let buffer = self.buffer.read(cx).read(cx);
5004 completion.position.is_valid(&buffer)
5005 } else {
5006 false
5007 }
5008 }
5009
5010 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
5011 let completion = self.active_inline_completion.take()?;
5012 self.display_map.update(cx, |map, cx| {
5013 map.splice_inlays(vec![completion.id], Default::default(), cx);
5014 });
5015 let buffer = self.buffer.read(cx).read(cx);
5016
5017 if completion.position.is_valid(&buffer) {
5018 Some(completion)
5019 } else {
5020 None
5021 }
5022 }
5023
5024 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5025 let selection = self.selections.newest_anchor();
5026 let cursor = selection.head();
5027
5028 if self.context_menu.read().is_none()
5029 && self.completion_tasks.is_empty()
5030 && selection.start == selection.end
5031 {
5032 if let Some(provider) = self.inline_completion_provider() {
5033 if let Some((buffer, cursor_buffer_position)) =
5034 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5035 {
5036 if let Some(text) =
5037 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5038 {
5039 let text = Rope::from(text);
5040 let mut to_remove = Vec::new();
5041 if let Some(completion) = self.active_inline_completion.take() {
5042 to_remove.push(completion.id);
5043 }
5044
5045 let completion_inlay =
5046 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
5047 self.active_inline_completion = Some(completion_inlay.clone());
5048 self.display_map.update(cx, move |map, cx| {
5049 map.splice_inlays(to_remove, vec![completion_inlay], cx)
5050 });
5051 cx.notify();
5052 return;
5053 }
5054 }
5055 }
5056 }
5057
5058 self.discard_inline_completion(false, cx);
5059 }
5060
5061 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5062 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5063 }
5064
5065 fn render_code_actions_indicator(
5066 &self,
5067 _style: &EditorStyle,
5068 row: DisplayRow,
5069 is_active: bool,
5070 cx: &mut ViewContext<Self>,
5071 ) -> Option<IconButton> {
5072 if self.available_code_actions.is_some() {
5073 Some(
5074 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5075 .shape(ui::IconButtonShape::Square)
5076 .icon_size(IconSize::XSmall)
5077 .icon_color(Color::Muted)
5078 .selected(is_active)
5079 .on_click(cx.listener(move |editor, _e, cx| {
5080 editor.focus(cx);
5081 editor.toggle_code_actions(
5082 &ToggleCodeActions {
5083 deployed_from_indicator: Some(row),
5084 },
5085 cx,
5086 );
5087 })),
5088 )
5089 } else {
5090 None
5091 }
5092 }
5093
5094 fn clear_tasks(&mut self) {
5095 self.tasks.clear()
5096 }
5097
5098 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5099 if let Some(_) = self.tasks.insert(key, value) {
5100 // This case should hopefully be rare, but just in case...
5101 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5102 }
5103 }
5104
5105 fn render_run_indicator(
5106 &self,
5107 _style: &EditorStyle,
5108 is_active: bool,
5109 row: DisplayRow,
5110 cx: &mut ViewContext<Self>,
5111 ) -> IconButton {
5112 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5113 .shape(ui::IconButtonShape::Square)
5114 .icon_size(IconSize::XSmall)
5115 .icon_color(Color::Muted)
5116 .selected(is_active)
5117 .on_click(cx.listener(move |editor, _e, cx| {
5118 editor.focus(cx);
5119 editor.toggle_code_actions(
5120 &ToggleCodeActions {
5121 deployed_from_indicator: Some(row),
5122 },
5123 cx,
5124 );
5125 }))
5126 }
5127
5128 pub fn context_menu_visible(&self) -> bool {
5129 self.context_menu
5130 .read()
5131 .as_ref()
5132 .map_or(false, |menu| menu.visible())
5133 }
5134
5135 fn render_context_menu(
5136 &self,
5137 cursor_position: DisplayPoint,
5138 style: &EditorStyle,
5139 max_height: Pixels,
5140 cx: &mut ViewContext<Editor>,
5141 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5142 self.context_menu.read().as_ref().map(|menu| {
5143 menu.render(
5144 cursor_position,
5145 style,
5146 max_height,
5147 self.workspace.as_ref().map(|(w, _)| w.clone()),
5148 cx,
5149 )
5150 })
5151 }
5152
5153 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5154 cx.notify();
5155 self.completion_tasks.clear();
5156 let context_menu = self.context_menu.write().take();
5157 if context_menu.is_some() {
5158 self.update_visible_inline_completion(cx);
5159 }
5160 context_menu
5161 }
5162
5163 pub fn insert_snippet(
5164 &mut self,
5165 insertion_ranges: &[Range<usize>],
5166 snippet: Snippet,
5167 cx: &mut ViewContext<Self>,
5168 ) -> Result<()> {
5169 struct Tabstop<T> {
5170 is_end_tabstop: bool,
5171 ranges: Vec<Range<T>>,
5172 }
5173
5174 let tabstops = self.buffer.update(cx, |buffer, cx| {
5175 let snippet_text: Arc<str> = snippet.text.clone().into();
5176 buffer.edit(
5177 insertion_ranges
5178 .iter()
5179 .cloned()
5180 .map(|range| (range, snippet_text.clone())),
5181 Some(AutoindentMode::EachLine),
5182 cx,
5183 );
5184
5185 let snapshot = &*buffer.read(cx);
5186 let snippet = &snippet;
5187 snippet
5188 .tabstops
5189 .iter()
5190 .map(|tabstop| {
5191 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5192 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5193 });
5194 let mut tabstop_ranges = tabstop
5195 .iter()
5196 .flat_map(|tabstop_range| {
5197 let mut delta = 0_isize;
5198 insertion_ranges.iter().map(move |insertion_range| {
5199 let insertion_start = insertion_range.start as isize + delta;
5200 delta +=
5201 snippet.text.len() as isize - insertion_range.len() as isize;
5202
5203 let start = ((insertion_start + tabstop_range.start) as usize)
5204 .min(snapshot.len());
5205 let end = ((insertion_start + tabstop_range.end) as usize)
5206 .min(snapshot.len());
5207 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5208 })
5209 })
5210 .collect::<Vec<_>>();
5211 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5212
5213 Tabstop {
5214 is_end_tabstop,
5215 ranges: tabstop_ranges,
5216 }
5217 })
5218 .collect::<Vec<_>>()
5219 });
5220 if let Some(tabstop) = tabstops.first() {
5221 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5222 s.select_ranges(tabstop.ranges.iter().cloned());
5223 });
5224
5225 // If we're already at the last tabstop and it's at the end of the snippet,
5226 // we're done, we don't need to keep the state around.
5227 if !tabstop.is_end_tabstop {
5228 let ranges = tabstops
5229 .into_iter()
5230 .map(|tabstop| tabstop.ranges)
5231 .collect::<Vec<_>>();
5232 self.snippet_stack.push(SnippetState {
5233 active_index: 0,
5234 ranges,
5235 });
5236 }
5237
5238 // Check whether the just-entered snippet ends with an auto-closable bracket.
5239 if self.autoclose_regions.is_empty() {
5240 let snapshot = self.buffer.read(cx).snapshot(cx);
5241 for selection in &mut self.selections.all::<Point>(cx) {
5242 let selection_head = selection.head();
5243 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5244 continue;
5245 };
5246
5247 let mut bracket_pair = None;
5248 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5249 let prev_chars = snapshot
5250 .reversed_chars_at(selection_head)
5251 .collect::<String>();
5252 for (pair, enabled) in scope.brackets() {
5253 if enabled
5254 && pair.close
5255 && prev_chars.starts_with(pair.start.as_str())
5256 && next_chars.starts_with(pair.end.as_str())
5257 {
5258 bracket_pair = Some(pair.clone());
5259 break;
5260 }
5261 }
5262 if let Some(pair) = bracket_pair {
5263 let start = snapshot.anchor_after(selection_head);
5264 let end = snapshot.anchor_after(selection_head);
5265 self.autoclose_regions.push(AutocloseRegion {
5266 selection_id: selection.id,
5267 range: start..end,
5268 pair,
5269 });
5270 }
5271 }
5272 }
5273 }
5274 Ok(())
5275 }
5276
5277 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5278 self.move_to_snippet_tabstop(Bias::Right, cx)
5279 }
5280
5281 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5282 self.move_to_snippet_tabstop(Bias::Left, cx)
5283 }
5284
5285 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5286 if let Some(mut snippet) = self.snippet_stack.pop() {
5287 match bias {
5288 Bias::Left => {
5289 if snippet.active_index > 0 {
5290 snippet.active_index -= 1;
5291 } else {
5292 self.snippet_stack.push(snippet);
5293 return false;
5294 }
5295 }
5296 Bias::Right => {
5297 if snippet.active_index + 1 < snippet.ranges.len() {
5298 snippet.active_index += 1;
5299 } else {
5300 self.snippet_stack.push(snippet);
5301 return false;
5302 }
5303 }
5304 }
5305 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5306 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5307 s.select_anchor_ranges(current_ranges.iter().cloned())
5308 });
5309 // If snippet state is not at the last tabstop, push it back on the stack
5310 if snippet.active_index + 1 < snippet.ranges.len() {
5311 self.snippet_stack.push(snippet);
5312 }
5313 return true;
5314 }
5315 }
5316
5317 false
5318 }
5319
5320 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5321 self.transact(cx, |this, cx| {
5322 this.select_all(&SelectAll, cx);
5323 this.insert("", cx);
5324 });
5325 }
5326
5327 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5328 self.transact(cx, |this, cx| {
5329 this.select_autoclose_pair(cx);
5330 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5331 if !this.linked_edit_ranges.is_empty() {
5332 let selections = this.selections.all::<MultiBufferPoint>(cx);
5333 let snapshot = this.buffer.read(cx).snapshot(cx);
5334
5335 for selection in selections.iter() {
5336 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5337 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5338 if selection_start.buffer_id != selection_end.buffer_id {
5339 continue;
5340 }
5341 if let Some(ranges) =
5342 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5343 {
5344 for (buffer, entries) in ranges {
5345 linked_ranges.entry(buffer).or_default().extend(entries);
5346 }
5347 }
5348 }
5349 }
5350
5351 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5352 if !this.selections.line_mode {
5353 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5354 for selection in &mut selections {
5355 if selection.is_empty() {
5356 let old_head = selection.head();
5357 let mut new_head =
5358 movement::left(&display_map, old_head.to_display_point(&display_map))
5359 .to_point(&display_map);
5360 if let Some((buffer, line_buffer_range)) = display_map
5361 .buffer_snapshot
5362 .buffer_line_for_row(MultiBufferRow(old_head.row))
5363 {
5364 let indent_size =
5365 buffer.indent_size_for_line(line_buffer_range.start.row);
5366 let indent_len = match indent_size.kind {
5367 IndentKind::Space => {
5368 buffer.settings_at(line_buffer_range.start, cx).tab_size
5369 }
5370 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5371 };
5372 if old_head.column <= indent_size.len && old_head.column > 0 {
5373 let indent_len = indent_len.get();
5374 new_head = cmp::min(
5375 new_head,
5376 MultiBufferPoint::new(
5377 old_head.row,
5378 ((old_head.column - 1) / indent_len) * indent_len,
5379 ),
5380 );
5381 }
5382 }
5383
5384 selection.set_head(new_head, SelectionGoal::None);
5385 }
5386 }
5387 }
5388
5389 this.signature_help_state.set_backspace_pressed(true);
5390 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5391 this.insert("", cx);
5392 let empty_str: Arc<str> = Arc::from("");
5393 for (buffer, edits) in linked_ranges {
5394 let snapshot = buffer.read(cx).snapshot();
5395 use text::ToPoint as TP;
5396
5397 let edits = edits
5398 .into_iter()
5399 .map(|range| {
5400 let end_point = TP::to_point(&range.end, &snapshot);
5401 let mut start_point = TP::to_point(&range.start, &snapshot);
5402
5403 if end_point == start_point {
5404 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5405 .saturating_sub(1);
5406 start_point = TP::to_point(&offset, &snapshot);
5407 };
5408
5409 (start_point..end_point, empty_str.clone())
5410 })
5411 .sorted_by_key(|(range, _)| range.start)
5412 .collect::<Vec<_>>();
5413 buffer.update(cx, |this, cx| {
5414 this.edit(edits, None, cx);
5415 })
5416 }
5417 this.refresh_inline_completion(true, cx);
5418 linked_editing_ranges::refresh_linked_ranges(this, cx);
5419 });
5420 }
5421
5422 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5423 self.transact(cx, |this, cx| {
5424 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5425 let line_mode = s.line_mode;
5426 s.move_with(|map, selection| {
5427 if selection.is_empty() && !line_mode {
5428 let cursor = movement::right(map, selection.head());
5429 selection.end = cursor;
5430 selection.reversed = true;
5431 selection.goal = SelectionGoal::None;
5432 }
5433 })
5434 });
5435 this.insert("", cx);
5436 this.refresh_inline_completion(true, cx);
5437 });
5438 }
5439
5440 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5441 if self.move_to_prev_snippet_tabstop(cx) {
5442 return;
5443 }
5444
5445 self.outdent(&Outdent, cx);
5446 }
5447
5448 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5449 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5450 return;
5451 }
5452
5453 let mut selections = self.selections.all_adjusted(cx);
5454 let buffer = self.buffer.read(cx);
5455 let snapshot = buffer.snapshot(cx);
5456 let rows_iter = selections.iter().map(|s| s.head().row);
5457 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5458
5459 let mut edits = Vec::new();
5460 let mut prev_edited_row = 0;
5461 let mut row_delta = 0;
5462 for selection in &mut selections {
5463 if selection.start.row != prev_edited_row {
5464 row_delta = 0;
5465 }
5466 prev_edited_row = selection.end.row;
5467
5468 // If the selection is non-empty, then increase the indentation of the selected lines.
5469 if !selection.is_empty() {
5470 row_delta =
5471 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5472 continue;
5473 }
5474
5475 // If the selection is empty and the cursor is in the leading whitespace before the
5476 // suggested indentation, then auto-indent the line.
5477 let cursor = selection.head();
5478 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5479 if let Some(suggested_indent) =
5480 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5481 {
5482 if cursor.column < suggested_indent.len
5483 && cursor.column <= current_indent.len
5484 && current_indent.len <= suggested_indent.len
5485 {
5486 selection.start = Point::new(cursor.row, suggested_indent.len);
5487 selection.end = selection.start;
5488 if row_delta == 0 {
5489 edits.extend(Buffer::edit_for_indent_size_adjustment(
5490 cursor.row,
5491 current_indent,
5492 suggested_indent,
5493 ));
5494 row_delta = suggested_indent.len - current_indent.len;
5495 }
5496 continue;
5497 }
5498 }
5499
5500 // Otherwise, insert a hard or soft tab.
5501 let settings = buffer.settings_at(cursor, cx);
5502 let tab_size = if settings.hard_tabs {
5503 IndentSize::tab()
5504 } else {
5505 let tab_size = settings.tab_size.get();
5506 let char_column = snapshot
5507 .text_for_range(Point::new(cursor.row, 0)..cursor)
5508 .flat_map(str::chars)
5509 .count()
5510 + row_delta as usize;
5511 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5512 IndentSize::spaces(chars_to_next_tab_stop)
5513 };
5514 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5515 selection.end = selection.start;
5516 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5517 row_delta += tab_size.len;
5518 }
5519
5520 self.transact(cx, |this, cx| {
5521 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5522 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5523 this.refresh_inline_completion(true, cx);
5524 });
5525 }
5526
5527 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5528 if self.read_only(cx) {
5529 return;
5530 }
5531 let mut selections = self.selections.all::<Point>(cx);
5532 let mut prev_edited_row = 0;
5533 let mut row_delta = 0;
5534 let mut edits = Vec::new();
5535 let buffer = self.buffer.read(cx);
5536 let snapshot = buffer.snapshot(cx);
5537 for selection in &mut selections {
5538 if selection.start.row != prev_edited_row {
5539 row_delta = 0;
5540 }
5541 prev_edited_row = selection.end.row;
5542
5543 row_delta =
5544 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5545 }
5546
5547 self.transact(cx, |this, cx| {
5548 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5549 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5550 });
5551 }
5552
5553 fn indent_selection(
5554 buffer: &MultiBuffer,
5555 snapshot: &MultiBufferSnapshot,
5556 selection: &mut Selection<Point>,
5557 edits: &mut Vec<(Range<Point>, String)>,
5558 delta_for_start_row: u32,
5559 cx: &AppContext,
5560 ) -> u32 {
5561 let settings = buffer.settings_at(selection.start, cx);
5562 let tab_size = settings.tab_size.get();
5563 let indent_kind = if settings.hard_tabs {
5564 IndentKind::Tab
5565 } else {
5566 IndentKind::Space
5567 };
5568 let mut start_row = selection.start.row;
5569 let mut end_row = selection.end.row + 1;
5570
5571 // If a selection ends at the beginning of a line, don't indent
5572 // that last line.
5573 if selection.end.column == 0 && selection.end.row > selection.start.row {
5574 end_row -= 1;
5575 }
5576
5577 // Avoid re-indenting a row that has already been indented by a
5578 // previous selection, but still update this selection's column
5579 // to reflect that indentation.
5580 if delta_for_start_row > 0 {
5581 start_row += 1;
5582 selection.start.column += delta_for_start_row;
5583 if selection.end.row == selection.start.row {
5584 selection.end.column += delta_for_start_row;
5585 }
5586 }
5587
5588 let mut delta_for_end_row = 0;
5589 let has_multiple_rows = start_row + 1 != end_row;
5590 for row in start_row..end_row {
5591 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5592 let indent_delta = match (current_indent.kind, indent_kind) {
5593 (IndentKind::Space, IndentKind::Space) => {
5594 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5595 IndentSize::spaces(columns_to_next_tab_stop)
5596 }
5597 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5598 (_, IndentKind::Tab) => IndentSize::tab(),
5599 };
5600
5601 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5602 0
5603 } else {
5604 selection.start.column
5605 };
5606 let row_start = Point::new(row, start);
5607 edits.push((
5608 row_start..row_start,
5609 indent_delta.chars().collect::<String>(),
5610 ));
5611
5612 // Update this selection's endpoints to reflect the indentation.
5613 if row == selection.start.row {
5614 selection.start.column += indent_delta.len;
5615 }
5616 if row == selection.end.row {
5617 selection.end.column += indent_delta.len;
5618 delta_for_end_row = indent_delta.len;
5619 }
5620 }
5621
5622 if selection.start.row == selection.end.row {
5623 delta_for_start_row + delta_for_end_row
5624 } else {
5625 delta_for_end_row
5626 }
5627 }
5628
5629 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5630 if self.read_only(cx) {
5631 return;
5632 }
5633 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5634 let selections = self.selections.all::<Point>(cx);
5635 let mut deletion_ranges = Vec::new();
5636 let mut last_outdent = None;
5637 {
5638 let buffer = self.buffer.read(cx);
5639 let snapshot = buffer.snapshot(cx);
5640 for selection in &selections {
5641 let settings = buffer.settings_at(selection.start, cx);
5642 let tab_size = settings.tab_size.get();
5643 let mut rows = selection.spanned_rows(false, &display_map);
5644
5645 // Avoid re-outdenting a row that has already been outdented by a
5646 // previous selection.
5647 if let Some(last_row) = last_outdent {
5648 if last_row == rows.start {
5649 rows.start = rows.start.next_row();
5650 }
5651 }
5652 let has_multiple_rows = rows.len() > 1;
5653 for row in rows.iter_rows() {
5654 let indent_size = snapshot.indent_size_for_line(row);
5655 if indent_size.len > 0 {
5656 let deletion_len = match indent_size.kind {
5657 IndentKind::Space => {
5658 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5659 if columns_to_prev_tab_stop == 0 {
5660 tab_size
5661 } else {
5662 columns_to_prev_tab_stop
5663 }
5664 }
5665 IndentKind::Tab => 1,
5666 };
5667 let start = if has_multiple_rows
5668 || deletion_len > selection.start.column
5669 || indent_size.len < selection.start.column
5670 {
5671 0
5672 } else {
5673 selection.start.column - deletion_len
5674 };
5675 deletion_ranges.push(
5676 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5677 );
5678 last_outdent = Some(row);
5679 }
5680 }
5681 }
5682 }
5683
5684 self.transact(cx, |this, cx| {
5685 this.buffer.update(cx, |buffer, cx| {
5686 let empty_str: Arc<str> = "".into();
5687 buffer.edit(
5688 deletion_ranges
5689 .into_iter()
5690 .map(|range| (range, empty_str.clone())),
5691 None,
5692 cx,
5693 );
5694 });
5695 let selections = this.selections.all::<usize>(cx);
5696 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5697 });
5698 }
5699
5700 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5701 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5702 let selections = self.selections.all::<Point>(cx);
5703
5704 let mut new_cursors = Vec::new();
5705 let mut edit_ranges = Vec::new();
5706 let mut selections = selections.iter().peekable();
5707 while let Some(selection) = selections.next() {
5708 let mut rows = selection.spanned_rows(false, &display_map);
5709 let goal_display_column = selection.head().to_display_point(&display_map).column();
5710
5711 // Accumulate contiguous regions of rows that we want to delete.
5712 while let Some(next_selection) = selections.peek() {
5713 let next_rows = next_selection.spanned_rows(false, &display_map);
5714 if next_rows.start <= rows.end {
5715 rows.end = next_rows.end;
5716 selections.next().unwrap();
5717 } else {
5718 break;
5719 }
5720 }
5721
5722 let buffer = &display_map.buffer_snapshot;
5723 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5724 let edit_end;
5725 let cursor_buffer_row;
5726 if buffer.max_point().row >= rows.end.0 {
5727 // If there's a line after the range, delete the \n from the end of the row range
5728 // and position the cursor on the next line.
5729 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5730 cursor_buffer_row = rows.end;
5731 } else {
5732 // If there isn't a line after the range, delete the \n from the line before the
5733 // start of the row range and position the cursor there.
5734 edit_start = edit_start.saturating_sub(1);
5735 edit_end = buffer.len();
5736 cursor_buffer_row = rows.start.previous_row();
5737 }
5738
5739 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5740 *cursor.column_mut() =
5741 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5742
5743 new_cursors.push((
5744 selection.id,
5745 buffer.anchor_after(cursor.to_point(&display_map)),
5746 ));
5747 edit_ranges.push(edit_start..edit_end);
5748 }
5749
5750 self.transact(cx, |this, cx| {
5751 let buffer = this.buffer.update(cx, |buffer, cx| {
5752 let empty_str: Arc<str> = "".into();
5753 buffer.edit(
5754 edit_ranges
5755 .into_iter()
5756 .map(|range| (range, empty_str.clone())),
5757 None,
5758 cx,
5759 );
5760 buffer.snapshot(cx)
5761 });
5762 let new_selections = new_cursors
5763 .into_iter()
5764 .map(|(id, cursor)| {
5765 let cursor = cursor.to_point(&buffer);
5766 Selection {
5767 id,
5768 start: cursor,
5769 end: cursor,
5770 reversed: false,
5771 goal: SelectionGoal::None,
5772 }
5773 })
5774 .collect();
5775
5776 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5777 s.select(new_selections);
5778 });
5779 });
5780 }
5781
5782 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5783 if self.read_only(cx) {
5784 return;
5785 }
5786 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5787 for selection in self.selections.all::<Point>(cx) {
5788 let start = MultiBufferRow(selection.start.row);
5789 let end = if selection.start.row == selection.end.row {
5790 MultiBufferRow(selection.start.row + 1)
5791 } else {
5792 MultiBufferRow(selection.end.row)
5793 };
5794
5795 if let Some(last_row_range) = row_ranges.last_mut() {
5796 if start <= last_row_range.end {
5797 last_row_range.end = end;
5798 continue;
5799 }
5800 }
5801 row_ranges.push(start..end);
5802 }
5803
5804 let snapshot = self.buffer.read(cx).snapshot(cx);
5805 let mut cursor_positions = Vec::new();
5806 for row_range in &row_ranges {
5807 let anchor = snapshot.anchor_before(Point::new(
5808 row_range.end.previous_row().0,
5809 snapshot.line_len(row_range.end.previous_row()),
5810 ));
5811 cursor_positions.push(anchor..anchor);
5812 }
5813
5814 self.transact(cx, |this, cx| {
5815 for row_range in row_ranges.into_iter().rev() {
5816 for row in row_range.iter_rows().rev() {
5817 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5818 let next_line_row = row.next_row();
5819 let indent = snapshot.indent_size_for_line(next_line_row);
5820 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5821
5822 let replace = if snapshot.line_len(next_line_row) > indent.len {
5823 " "
5824 } else {
5825 ""
5826 };
5827
5828 this.buffer.update(cx, |buffer, cx| {
5829 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5830 });
5831 }
5832 }
5833
5834 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5835 s.select_anchor_ranges(cursor_positions)
5836 });
5837 });
5838 }
5839
5840 pub fn sort_lines_case_sensitive(
5841 &mut self,
5842 _: &SortLinesCaseSensitive,
5843 cx: &mut ViewContext<Self>,
5844 ) {
5845 self.manipulate_lines(cx, |lines| lines.sort())
5846 }
5847
5848 pub fn sort_lines_case_insensitive(
5849 &mut self,
5850 _: &SortLinesCaseInsensitive,
5851 cx: &mut ViewContext<Self>,
5852 ) {
5853 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5854 }
5855
5856 pub fn unique_lines_case_insensitive(
5857 &mut self,
5858 _: &UniqueLinesCaseInsensitive,
5859 cx: &mut ViewContext<Self>,
5860 ) {
5861 self.manipulate_lines(cx, |lines| {
5862 let mut seen = HashSet::default();
5863 lines.retain(|line| seen.insert(line.to_lowercase()));
5864 })
5865 }
5866
5867 pub fn unique_lines_case_sensitive(
5868 &mut self,
5869 _: &UniqueLinesCaseSensitive,
5870 cx: &mut ViewContext<Self>,
5871 ) {
5872 self.manipulate_lines(cx, |lines| {
5873 let mut seen = HashSet::default();
5874 lines.retain(|line| seen.insert(*line));
5875 })
5876 }
5877
5878 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5879 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5880 if !revert_changes.is_empty() {
5881 self.transact(cx, |editor, cx| {
5882 editor.buffer().update(cx, |multi_buffer, cx| {
5883 for (buffer_id, changes) in revert_changes {
5884 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5885 buffer.update(cx, |buffer, cx| {
5886 buffer.edit(
5887 changes.into_iter().map(|(range, text)| {
5888 (range, text.to_string().map(Arc::<str>::from))
5889 }),
5890 None,
5891 cx,
5892 );
5893 });
5894 }
5895 }
5896 });
5897 editor.change_selections(None, cx, |selections| selections.refresh());
5898 });
5899 }
5900 }
5901
5902 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5903 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5904 let project_path = buffer.read(cx).project_path(cx)?;
5905 let project = self.project.as_ref()?.read(cx);
5906 let entry = project.entry_for_path(&project_path, cx)?;
5907 let abs_path = project.absolute_path(&project_path, cx)?;
5908 let parent = if entry.is_symlink {
5909 abs_path.canonicalize().ok()?
5910 } else {
5911 abs_path
5912 }
5913 .parent()?
5914 .to_path_buf();
5915 Some(parent)
5916 }) {
5917 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5918 }
5919 }
5920
5921 fn gather_revert_changes(
5922 &mut self,
5923 selections: &[Selection<Anchor>],
5924 cx: &mut ViewContext<'_, Editor>,
5925 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5926 let mut revert_changes = HashMap::default();
5927 self.buffer.update(cx, |multi_buffer, cx| {
5928 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5929 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5930 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5931 }
5932 });
5933 revert_changes
5934 }
5935
5936 fn prepare_revert_change(
5937 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5938 multi_buffer: &MultiBuffer,
5939 hunk: &DiffHunk<MultiBufferRow>,
5940 cx: &mut AppContext,
5941 ) -> Option<()> {
5942 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5943 let buffer = buffer.read(cx);
5944 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5945 let buffer_snapshot = buffer.snapshot();
5946 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5947 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5948 probe
5949 .0
5950 .start
5951 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5952 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5953 }) {
5954 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5955 Some(())
5956 } else {
5957 None
5958 }
5959 }
5960
5961 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5962 self.manipulate_lines(cx, |lines| lines.reverse())
5963 }
5964
5965 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5966 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5967 }
5968
5969 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5970 where
5971 Fn: FnMut(&mut Vec<&str>),
5972 {
5973 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5974 let buffer = self.buffer.read(cx).snapshot(cx);
5975
5976 let mut edits = Vec::new();
5977
5978 let selections = self.selections.all::<Point>(cx);
5979 let mut selections = selections.iter().peekable();
5980 let mut contiguous_row_selections = Vec::new();
5981 let mut new_selections = Vec::new();
5982 let mut added_lines = 0;
5983 let mut removed_lines = 0;
5984
5985 while let Some(selection) = selections.next() {
5986 let (start_row, end_row) = consume_contiguous_rows(
5987 &mut contiguous_row_selections,
5988 selection,
5989 &display_map,
5990 &mut selections,
5991 );
5992
5993 let start_point = Point::new(start_row.0, 0);
5994 let end_point = Point::new(
5995 end_row.previous_row().0,
5996 buffer.line_len(end_row.previous_row()),
5997 );
5998 let text = buffer
5999 .text_for_range(start_point..end_point)
6000 .collect::<String>();
6001
6002 let mut lines = text.split('\n').collect_vec();
6003
6004 let lines_before = lines.len();
6005 callback(&mut lines);
6006 let lines_after = lines.len();
6007
6008 edits.push((start_point..end_point, lines.join("\n")));
6009
6010 // Selections must change based on added and removed line count
6011 let start_row =
6012 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6013 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6014 new_selections.push(Selection {
6015 id: selection.id,
6016 start: start_row,
6017 end: end_row,
6018 goal: SelectionGoal::None,
6019 reversed: selection.reversed,
6020 });
6021
6022 if lines_after > lines_before {
6023 added_lines += lines_after - lines_before;
6024 } else if lines_before > lines_after {
6025 removed_lines += lines_before - lines_after;
6026 }
6027 }
6028
6029 self.transact(cx, |this, cx| {
6030 let buffer = this.buffer.update(cx, |buffer, cx| {
6031 buffer.edit(edits, None, cx);
6032 buffer.snapshot(cx)
6033 });
6034
6035 // Recalculate offsets on newly edited buffer
6036 let new_selections = new_selections
6037 .iter()
6038 .map(|s| {
6039 let start_point = Point::new(s.start.0, 0);
6040 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6041 Selection {
6042 id: s.id,
6043 start: buffer.point_to_offset(start_point),
6044 end: buffer.point_to_offset(end_point),
6045 goal: s.goal,
6046 reversed: s.reversed,
6047 }
6048 })
6049 .collect();
6050
6051 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6052 s.select(new_selections);
6053 });
6054
6055 this.request_autoscroll(Autoscroll::fit(), cx);
6056 });
6057 }
6058
6059 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6060 self.manipulate_text(cx, |text| text.to_uppercase())
6061 }
6062
6063 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6064 self.manipulate_text(cx, |text| text.to_lowercase())
6065 }
6066
6067 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6068 self.manipulate_text(cx, |text| {
6069 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6070 // https://github.com/rutrum/convert-case/issues/16
6071 text.split('\n')
6072 .map(|line| line.to_case(Case::Title))
6073 .join("\n")
6074 })
6075 }
6076
6077 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6078 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6079 }
6080
6081 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6082 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6083 }
6084
6085 pub fn convert_to_upper_camel_case(
6086 &mut self,
6087 _: &ConvertToUpperCamelCase,
6088 cx: &mut ViewContext<Self>,
6089 ) {
6090 self.manipulate_text(cx, |text| {
6091 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6092 // https://github.com/rutrum/convert-case/issues/16
6093 text.split('\n')
6094 .map(|line| line.to_case(Case::UpperCamel))
6095 .join("\n")
6096 })
6097 }
6098
6099 pub fn convert_to_lower_camel_case(
6100 &mut self,
6101 _: &ConvertToLowerCamelCase,
6102 cx: &mut ViewContext<Self>,
6103 ) {
6104 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6105 }
6106
6107 pub fn convert_to_opposite_case(
6108 &mut self,
6109 _: &ConvertToOppositeCase,
6110 cx: &mut ViewContext<Self>,
6111 ) {
6112 self.manipulate_text(cx, |text| {
6113 text.chars()
6114 .fold(String::with_capacity(text.len()), |mut t, c| {
6115 if c.is_uppercase() {
6116 t.extend(c.to_lowercase());
6117 } else {
6118 t.extend(c.to_uppercase());
6119 }
6120 t
6121 })
6122 })
6123 }
6124
6125 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6126 where
6127 Fn: FnMut(&str) -> String,
6128 {
6129 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6130 let buffer = self.buffer.read(cx).snapshot(cx);
6131
6132 let mut new_selections = Vec::new();
6133 let mut edits = Vec::new();
6134 let mut selection_adjustment = 0i32;
6135
6136 for selection in self.selections.all::<usize>(cx) {
6137 let selection_is_empty = selection.is_empty();
6138
6139 let (start, end) = if selection_is_empty {
6140 let word_range = movement::surrounding_word(
6141 &display_map,
6142 selection.start.to_display_point(&display_map),
6143 );
6144 let start = word_range.start.to_offset(&display_map, Bias::Left);
6145 let end = word_range.end.to_offset(&display_map, Bias::Left);
6146 (start, end)
6147 } else {
6148 (selection.start, selection.end)
6149 };
6150
6151 let text = buffer.text_for_range(start..end).collect::<String>();
6152 let old_length = text.len() as i32;
6153 let text = callback(&text);
6154
6155 new_selections.push(Selection {
6156 start: (start as i32 - selection_adjustment) as usize,
6157 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6158 goal: SelectionGoal::None,
6159 ..selection
6160 });
6161
6162 selection_adjustment += old_length - text.len() as i32;
6163
6164 edits.push((start..end, text));
6165 }
6166
6167 self.transact(cx, |this, cx| {
6168 this.buffer.update(cx, |buffer, cx| {
6169 buffer.edit(edits, None, cx);
6170 });
6171
6172 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6173 s.select(new_selections);
6174 });
6175
6176 this.request_autoscroll(Autoscroll::fit(), cx);
6177 });
6178 }
6179
6180 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6181 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6182 let buffer = &display_map.buffer_snapshot;
6183 let selections = self.selections.all::<Point>(cx);
6184
6185 let mut edits = Vec::new();
6186 let mut selections_iter = selections.iter().peekable();
6187 while let Some(selection) = selections_iter.next() {
6188 // Avoid duplicating the same lines twice.
6189 let mut rows = selection.spanned_rows(false, &display_map);
6190
6191 while let Some(next_selection) = selections_iter.peek() {
6192 let next_rows = next_selection.spanned_rows(false, &display_map);
6193 if next_rows.start < rows.end {
6194 rows.end = next_rows.end;
6195 selections_iter.next().unwrap();
6196 } else {
6197 break;
6198 }
6199 }
6200
6201 // Copy the text from the selected row region and splice it either at the start
6202 // or end of the region.
6203 let start = Point::new(rows.start.0, 0);
6204 let end = Point::new(
6205 rows.end.previous_row().0,
6206 buffer.line_len(rows.end.previous_row()),
6207 );
6208 let text = buffer
6209 .text_for_range(start..end)
6210 .chain(Some("\n"))
6211 .collect::<String>();
6212 let insert_location = if upwards {
6213 Point::new(rows.end.0, 0)
6214 } else {
6215 start
6216 };
6217 edits.push((insert_location..insert_location, text));
6218 }
6219
6220 self.transact(cx, |this, cx| {
6221 this.buffer.update(cx, |buffer, cx| {
6222 buffer.edit(edits, None, cx);
6223 });
6224
6225 this.request_autoscroll(Autoscroll::fit(), cx);
6226 });
6227 }
6228
6229 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6230 self.duplicate_line(true, cx);
6231 }
6232
6233 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6234 self.duplicate_line(false, cx);
6235 }
6236
6237 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6238 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6239 let buffer = self.buffer.read(cx).snapshot(cx);
6240
6241 let mut edits = Vec::new();
6242 let mut unfold_ranges = Vec::new();
6243 let mut refold_ranges = Vec::new();
6244
6245 let selections = self.selections.all::<Point>(cx);
6246 let mut selections = selections.iter().peekable();
6247 let mut contiguous_row_selections = Vec::new();
6248 let mut new_selections = Vec::new();
6249
6250 while let Some(selection) = selections.next() {
6251 // Find all the selections that span a contiguous row range
6252 let (start_row, end_row) = consume_contiguous_rows(
6253 &mut contiguous_row_selections,
6254 selection,
6255 &display_map,
6256 &mut selections,
6257 );
6258
6259 // Move the text spanned by the row range to be before the line preceding the row range
6260 if start_row.0 > 0 {
6261 let range_to_move = Point::new(
6262 start_row.previous_row().0,
6263 buffer.line_len(start_row.previous_row()),
6264 )
6265 ..Point::new(
6266 end_row.previous_row().0,
6267 buffer.line_len(end_row.previous_row()),
6268 );
6269 let insertion_point = display_map
6270 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6271 .0;
6272
6273 // Don't move lines across excerpts
6274 if buffer
6275 .excerpt_boundaries_in_range((
6276 Bound::Excluded(insertion_point),
6277 Bound::Included(range_to_move.end),
6278 ))
6279 .next()
6280 .is_none()
6281 {
6282 let text = buffer
6283 .text_for_range(range_to_move.clone())
6284 .flat_map(|s| s.chars())
6285 .skip(1)
6286 .chain(['\n'])
6287 .collect::<String>();
6288
6289 edits.push((
6290 buffer.anchor_after(range_to_move.start)
6291 ..buffer.anchor_before(range_to_move.end),
6292 String::new(),
6293 ));
6294 let insertion_anchor = buffer.anchor_after(insertion_point);
6295 edits.push((insertion_anchor..insertion_anchor, text));
6296
6297 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6298
6299 // Move selections up
6300 new_selections.extend(contiguous_row_selections.drain(..).map(
6301 |mut selection| {
6302 selection.start.row -= row_delta;
6303 selection.end.row -= row_delta;
6304 selection
6305 },
6306 ));
6307
6308 // Move folds up
6309 unfold_ranges.push(range_to_move.clone());
6310 for fold in display_map.folds_in_range(
6311 buffer.anchor_before(range_to_move.start)
6312 ..buffer.anchor_after(range_to_move.end),
6313 ) {
6314 let mut start = fold.range.start.to_point(&buffer);
6315 let mut end = fold.range.end.to_point(&buffer);
6316 start.row -= row_delta;
6317 end.row -= row_delta;
6318 refold_ranges.push((start..end, fold.placeholder.clone()));
6319 }
6320 }
6321 }
6322
6323 // If we didn't move line(s), preserve the existing selections
6324 new_selections.append(&mut contiguous_row_selections);
6325 }
6326
6327 self.transact(cx, |this, cx| {
6328 this.unfold_ranges(unfold_ranges, true, true, cx);
6329 this.buffer.update(cx, |buffer, cx| {
6330 for (range, text) in edits {
6331 buffer.edit([(range, text)], None, cx);
6332 }
6333 });
6334 this.fold_ranges(refold_ranges, true, cx);
6335 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6336 s.select(new_selections);
6337 })
6338 });
6339 }
6340
6341 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6342 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6343 let buffer = self.buffer.read(cx).snapshot(cx);
6344
6345 let mut edits = Vec::new();
6346 let mut unfold_ranges = Vec::new();
6347 let mut refold_ranges = Vec::new();
6348
6349 let selections = self.selections.all::<Point>(cx);
6350 let mut selections = selections.iter().peekable();
6351 let mut contiguous_row_selections = Vec::new();
6352 let mut new_selections = Vec::new();
6353
6354 while let Some(selection) = selections.next() {
6355 // Find all the selections that span a contiguous row range
6356 let (start_row, end_row) = consume_contiguous_rows(
6357 &mut contiguous_row_selections,
6358 selection,
6359 &display_map,
6360 &mut selections,
6361 );
6362
6363 // Move the text spanned by the row range to be after the last line of the row range
6364 if end_row.0 <= buffer.max_point().row {
6365 let range_to_move =
6366 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6367 let insertion_point = display_map
6368 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6369 .0;
6370
6371 // Don't move lines across excerpt boundaries
6372 if buffer
6373 .excerpt_boundaries_in_range((
6374 Bound::Excluded(range_to_move.start),
6375 Bound::Included(insertion_point),
6376 ))
6377 .next()
6378 .is_none()
6379 {
6380 let mut text = String::from("\n");
6381 text.extend(buffer.text_for_range(range_to_move.clone()));
6382 text.pop(); // Drop trailing newline
6383 edits.push((
6384 buffer.anchor_after(range_to_move.start)
6385 ..buffer.anchor_before(range_to_move.end),
6386 String::new(),
6387 ));
6388 let insertion_anchor = buffer.anchor_after(insertion_point);
6389 edits.push((insertion_anchor..insertion_anchor, text));
6390
6391 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6392
6393 // Move selections down
6394 new_selections.extend(contiguous_row_selections.drain(..).map(
6395 |mut selection| {
6396 selection.start.row += row_delta;
6397 selection.end.row += row_delta;
6398 selection
6399 },
6400 ));
6401
6402 // Move folds down
6403 unfold_ranges.push(range_to_move.clone());
6404 for fold in display_map.folds_in_range(
6405 buffer.anchor_before(range_to_move.start)
6406 ..buffer.anchor_after(range_to_move.end),
6407 ) {
6408 let mut start = fold.range.start.to_point(&buffer);
6409 let mut end = fold.range.end.to_point(&buffer);
6410 start.row += row_delta;
6411 end.row += row_delta;
6412 refold_ranges.push((start..end, fold.placeholder.clone()));
6413 }
6414 }
6415 }
6416
6417 // If we didn't move line(s), preserve the existing selections
6418 new_selections.append(&mut contiguous_row_selections);
6419 }
6420
6421 self.transact(cx, |this, cx| {
6422 this.unfold_ranges(unfold_ranges, true, true, cx);
6423 this.buffer.update(cx, |buffer, cx| {
6424 for (range, text) in edits {
6425 buffer.edit([(range, text)], None, cx);
6426 }
6427 });
6428 this.fold_ranges(refold_ranges, true, cx);
6429 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6430 });
6431 }
6432
6433 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6434 let text_layout_details = &self.text_layout_details(cx);
6435 self.transact(cx, |this, cx| {
6436 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6437 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6438 let line_mode = s.line_mode;
6439 s.move_with(|display_map, selection| {
6440 if !selection.is_empty() || line_mode {
6441 return;
6442 }
6443
6444 let mut head = selection.head();
6445 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6446 if head.column() == display_map.line_len(head.row()) {
6447 transpose_offset = display_map
6448 .buffer_snapshot
6449 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6450 }
6451
6452 if transpose_offset == 0 {
6453 return;
6454 }
6455
6456 *head.column_mut() += 1;
6457 head = display_map.clip_point(head, Bias::Right);
6458 let goal = SelectionGoal::HorizontalPosition(
6459 display_map
6460 .x_for_display_point(head, &text_layout_details)
6461 .into(),
6462 );
6463 selection.collapse_to(head, goal);
6464
6465 let transpose_start = display_map
6466 .buffer_snapshot
6467 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6468 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6469 let transpose_end = display_map
6470 .buffer_snapshot
6471 .clip_offset(transpose_offset + 1, Bias::Right);
6472 if let Some(ch) =
6473 display_map.buffer_snapshot.chars_at(transpose_start).next()
6474 {
6475 edits.push((transpose_start..transpose_offset, String::new()));
6476 edits.push((transpose_end..transpose_end, ch.to_string()));
6477 }
6478 }
6479 });
6480 edits
6481 });
6482 this.buffer
6483 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6484 let selections = this.selections.all::<usize>(cx);
6485 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6486 s.select(selections);
6487 });
6488 });
6489 }
6490
6491 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6492 let mut text = String::new();
6493 let buffer = self.buffer.read(cx).snapshot(cx);
6494 let mut selections = self.selections.all::<Point>(cx);
6495 let mut clipboard_selections = Vec::with_capacity(selections.len());
6496 {
6497 let max_point = buffer.max_point();
6498 let mut is_first = true;
6499 for selection in &mut selections {
6500 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6501 if is_entire_line {
6502 selection.start = Point::new(selection.start.row, 0);
6503 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6504 selection.goal = SelectionGoal::None;
6505 }
6506 if is_first {
6507 is_first = false;
6508 } else {
6509 text += "\n";
6510 }
6511 let mut len = 0;
6512 for chunk in buffer.text_for_range(selection.start..selection.end) {
6513 text.push_str(chunk);
6514 len += chunk.len();
6515 }
6516 clipboard_selections.push(ClipboardSelection {
6517 len,
6518 is_entire_line,
6519 first_line_indent: buffer
6520 .indent_size_for_line(MultiBufferRow(selection.start.row))
6521 .len,
6522 });
6523 }
6524 }
6525
6526 self.transact(cx, |this, cx| {
6527 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6528 s.select(selections);
6529 });
6530 this.insert("", cx);
6531 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6532 });
6533 }
6534
6535 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6536 let selections = self.selections.all::<Point>(cx);
6537 let buffer = self.buffer.read(cx).read(cx);
6538 let mut text = String::new();
6539
6540 let mut clipboard_selections = Vec::with_capacity(selections.len());
6541 {
6542 let max_point = buffer.max_point();
6543 let mut is_first = true;
6544 for selection in selections.iter() {
6545 let mut start = selection.start;
6546 let mut end = selection.end;
6547 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6548 if is_entire_line {
6549 start = Point::new(start.row, 0);
6550 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6551 }
6552 if is_first {
6553 is_first = false;
6554 } else {
6555 text += "\n";
6556 }
6557 let mut len = 0;
6558 for chunk in buffer.text_for_range(start..end) {
6559 text.push_str(chunk);
6560 len += chunk.len();
6561 }
6562 clipboard_selections.push(ClipboardSelection {
6563 len,
6564 is_entire_line,
6565 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6566 });
6567 }
6568 }
6569
6570 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6571 }
6572
6573 pub fn do_paste(
6574 &mut self,
6575 text: &String,
6576 clipboard_selections: Option<Vec<ClipboardSelection>>,
6577 handle_entire_lines: bool,
6578 cx: &mut ViewContext<Self>,
6579 ) {
6580 if self.read_only(cx) {
6581 return;
6582 }
6583
6584 let clipboard_text = Cow::Borrowed(text);
6585
6586 self.transact(cx, |this, cx| {
6587 if let Some(mut clipboard_selections) = clipboard_selections {
6588 let old_selections = this.selections.all::<usize>(cx);
6589 let all_selections_were_entire_line =
6590 clipboard_selections.iter().all(|s| s.is_entire_line);
6591 let first_selection_indent_column =
6592 clipboard_selections.first().map(|s| s.first_line_indent);
6593 if clipboard_selections.len() != old_selections.len() {
6594 clipboard_selections.drain(..);
6595 }
6596
6597 this.buffer.update(cx, |buffer, cx| {
6598 let snapshot = buffer.read(cx);
6599 let mut start_offset = 0;
6600 let mut edits = Vec::new();
6601 let mut original_indent_columns = Vec::new();
6602 for (ix, selection) in old_selections.iter().enumerate() {
6603 let to_insert;
6604 let entire_line;
6605 let original_indent_column;
6606 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6607 let end_offset = start_offset + clipboard_selection.len;
6608 to_insert = &clipboard_text[start_offset..end_offset];
6609 entire_line = clipboard_selection.is_entire_line;
6610 start_offset = end_offset + 1;
6611 original_indent_column = Some(clipboard_selection.first_line_indent);
6612 } else {
6613 to_insert = clipboard_text.as_str();
6614 entire_line = all_selections_were_entire_line;
6615 original_indent_column = first_selection_indent_column
6616 }
6617
6618 // If the corresponding selection was empty when this slice of the
6619 // clipboard text was written, then the entire line containing the
6620 // selection was copied. If this selection is also currently empty,
6621 // then paste the line before the current line of the buffer.
6622 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6623 let column = selection.start.to_point(&snapshot).column as usize;
6624 let line_start = selection.start - column;
6625 line_start..line_start
6626 } else {
6627 selection.range()
6628 };
6629
6630 edits.push((range, to_insert));
6631 original_indent_columns.extend(original_indent_column);
6632 }
6633 drop(snapshot);
6634
6635 buffer.edit(
6636 edits,
6637 Some(AutoindentMode::Block {
6638 original_indent_columns,
6639 }),
6640 cx,
6641 );
6642 });
6643
6644 let selections = this.selections.all::<usize>(cx);
6645 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6646 } else {
6647 this.insert(&clipboard_text, cx);
6648 }
6649 });
6650 }
6651
6652 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6653 if let Some(item) = cx.read_from_clipboard() {
6654 self.do_paste(
6655 item.text(),
6656 item.metadata::<Vec<ClipboardSelection>>(),
6657 true,
6658 cx,
6659 )
6660 };
6661 }
6662
6663 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6664 if self.read_only(cx) {
6665 return;
6666 }
6667
6668 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6669 if let Some((selections, _)) =
6670 self.selection_history.transaction(transaction_id).cloned()
6671 {
6672 self.change_selections(None, cx, |s| {
6673 s.select_anchors(selections.to_vec());
6674 });
6675 }
6676 self.request_autoscroll(Autoscroll::fit(), cx);
6677 self.unmark_text(cx);
6678 self.refresh_inline_completion(true, cx);
6679 cx.emit(EditorEvent::Edited { transaction_id });
6680 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6681 }
6682 }
6683
6684 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6685 if self.read_only(cx) {
6686 return;
6687 }
6688
6689 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6690 if let Some((_, Some(selections))) =
6691 self.selection_history.transaction(transaction_id).cloned()
6692 {
6693 self.change_selections(None, cx, |s| {
6694 s.select_anchors(selections.to_vec());
6695 });
6696 }
6697 self.request_autoscroll(Autoscroll::fit(), cx);
6698 self.unmark_text(cx);
6699 self.refresh_inline_completion(true, cx);
6700 cx.emit(EditorEvent::Edited { transaction_id });
6701 }
6702 }
6703
6704 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6705 self.buffer
6706 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6707 }
6708
6709 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6710 self.buffer
6711 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6712 }
6713
6714 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6715 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6716 let line_mode = s.line_mode;
6717 s.move_with(|map, selection| {
6718 let cursor = if selection.is_empty() && !line_mode {
6719 movement::left(map, selection.start)
6720 } else {
6721 selection.start
6722 };
6723 selection.collapse_to(cursor, SelectionGoal::None);
6724 });
6725 })
6726 }
6727
6728 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6729 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6730 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6731 })
6732 }
6733
6734 pub fn move_right(&mut self, _: &MoveRight, 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::right(map, selection.end)
6740 } else {
6741 selection.end
6742 };
6743 selection.collapse_to(cursor, SelectionGoal::None)
6744 });
6745 })
6746 }
6747
6748 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6749 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6750 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6751 })
6752 }
6753
6754 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6755 if self.take_rename(true, cx).is_some() {
6756 return;
6757 }
6758
6759 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6760 cx.propagate();
6761 return;
6762 }
6763
6764 let text_layout_details = &self.text_layout_details(cx);
6765 let selection_count = self.selections.count();
6766 let first_selection = self.selections.first_anchor();
6767
6768 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6769 let line_mode = s.line_mode;
6770 s.move_with(|map, selection| {
6771 if !selection.is_empty() && !line_mode {
6772 selection.goal = SelectionGoal::None;
6773 }
6774 let (cursor, goal) = movement::up(
6775 map,
6776 selection.start,
6777 selection.goal,
6778 false,
6779 &text_layout_details,
6780 );
6781 selection.collapse_to(cursor, goal);
6782 });
6783 });
6784
6785 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6786 {
6787 cx.propagate();
6788 }
6789 }
6790
6791 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6792 if self.take_rename(true, cx).is_some() {
6793 return;
6794 }
6795
6796 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6797 cx.propagate();
6798 return;
6799 }
6800
6801 let text_layout_details = &self.text_layout_details(cx);
6802
6803 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6804 let line_mode = s.line_mode;
6805 s.move_with(|map, selection| {
6806 if !selection.is_empty() && !line_mode {
6807 selection.goal = SelectionGoal::None;
6808 }
6809 let (cursor, goal) = movement::up_by_rows(
6810 map,
6811 selection.start,
6812 action.lines,
6813 selection.goal,
6814 false,
6815 &text_layout_details,
6816 );
6817 selection.collapse_to(cursor, goal);
6818 });
6819 })
6820 }
6821
6822 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6823 if self.take_rename(true, cx).is_some() {
6824 return;
6825 }
6826
6827 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6828 cx.propagate();
6829 return;
6830 }
6831
6832 let text_layout_details = &self.text_layout_details(cx);
6833
6834 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6835 let line_mode = s.line_mode;
6836 s.move_with(|map, selection| {
6837 if !selection.is_empty() && !line_mode {
6838 selection.goal = SelectionGoal::None;
6839 }
6840 let (cursor, goal) = movement::down_by_rows(
6841 map,
6842 selection.start,
6843 action.lines,
6844 selection.goal,
6845 false,
6846 &text_layout_details,
6847 );
6848 selection.collapse_to(cursor, goal);
6849 });
6850 })
6851 }
6852
6853 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6854 let text_layout_details = &self.text_layout_details(cx);
6855 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6856 s.move_heads_with(|map, head, goal| {
6857 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6858 })
6859 })
6860 }
6861
6862 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6863 let text_layout_details = &self.text_layout_details(cx);
6864 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6865 s.move_heads_with(|map, head, goal| {
6866 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6867 })
6868 })
6869 }
6870
6871 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
6872 let Some(row_count) = self.visible_row_count() else {
6873 return;
6874 };
6875
6876 let text_layout_details = &self.text_layout_details(cx);
6877
6878 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6879 s.move_heads_with(|map, head, goal| {
6880 movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
6881 })
6882 })
6883 }
6884
6885 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6886 if self.take_rename(true, cx).is_some() {
6887 return;
6888 }
6889
6890 if self
6891 .context_menu
6892 .write()
6893 .as_mut()
6894 .map(|menu| menu.select_first(self.project.as_ref(), cx))
6895 .unwrap_or(false)
6896 {
6897 return;
6898 }
6899
6900 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6901 cx.propagate();
6902 return;
6903 }
6904
6905 let Some(row_count) = self.visible_row_count() else {
6906 return;
6907 };
6908
6909 let autoscroll = if action.center_cursor {
6910 Autoscroll::center()
6911 } else {
6912 Autoscroll::fit()
6913 };
6914
6915 let text_layout_details = &self.text_layout_details(cx);
6916
6917 self.change_selections(Some(autoscroll), cx, |s| {
6918 let line_mode = s.line_mode;
6919 s.move_with(|map, selection| {
6920 if !selection.is_empty() && !line_mode {
6921 selection.goal = SelectionGoal::None;
6922 }
6923 let (cursor, goal) = movement::up_by_rows(
6924 map,
6925 selection.end,
6926 row_count,
6927 selection.goal,
6928 false,
6929 &text_layout_details,
6930 );
6931 selection.collapse_to(cursor, goal);
6932 });
6933 });
6934 }
6935
6936 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6937 let text_layout_details = &self.text_layout_details(cx);
6938 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6939 s.move_heads_with(|map, head, goal| {
6940 movement::up(map, head, goal, false, &text_layout_details)
6941 })
6942 })
6943 }
6944
6945 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6946 self.take_rename(true, cx);
6947
6948 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6949 cx.propagate();
6950 return;
6951 }
6952
6953 let text_layout_details = &self.text_layout_details(cx);
6954 let selection_count = self.selections.count();
6955 let first_selection = self.selections.first_anchor();
6956
6957 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6958 let line_mode = s.line_mode;
6959 s.move_with(|map, selection| {
6960 if !selection.is_empty() && !line_mode {
6961 selection.goal = SelectionGoal::None;
6962 }
6963 let (cursor, goal) = movement::down(
6964 map,
6965 selection.end,
6966 selection.goal,
6967 false,
6968 &text_layout_details,
6969 );
6970 selection.collapse_to(cursor, goal);
6971 });
6972 });
6973
6974 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6975 {
6976 cx.propagate();
6977 }
6978 }
6979
6980 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
6981 let Some(row_count) = self.visible_row_count() else {
6982 return;
6983 };
6984
6985 let text_layout_details = &self.text_layout_details(cx);
6986
6987 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6988 s.move_heads_with(|map, head, goal| {
6989 movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
6990 })
6991 })
6992 }
6993
6994 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6995 if self.take_rename(true, cx).is_some() {
6996 return;
6997 }
6998
6999 if self
7000 .context_menu
7001 .write()
7002 .as_mut()
7003 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7004 .unwrap_or(false)
7005 {
7006 return;
7007 }
7008
7009 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7010 cx.propagate();
7011 return;
7012 }
7013
7014 let Some(row_count) = self.visible_row_count() else {
7015 return;
7016 };
7017
7018 let autoscroll = if action.center_cursor {
7019 Autoscroll::center()
7020 } else {
7021 Autoscroll::fit()
7022 };
7023
7024 let text_layout_details = &self.text_layout_details(cx);
7025 self.change_selections(Some(autoscroll), cx, |s| {
7026 let line_mode = s.line_mode;
7027 s.move_with(|map, selection| {
7028 if !selection.is_empty() && !line_mode {
7029 selection.goal = SelectionGoal::None;
7030 }
7031 let (cursor, goal) = movement::down_by_rows(
7032 map,
7033 selection.end,
7034 row_count,
7035 selection.goal,
7036 false,
7037 &text_layout_details,
7038 );
7039 selection.collapse_to(cursor, goal);
7040 });
7041 });
7042 }
7043
7044 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7045 let text_layout_details = &self.text_layout_details(cx);
7046 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7047 s.move_heads_with(|map, head, goal| {
7048 movement::down(map, head, goal, false, &text_layout_details)
7049 })
7050 });
7051 }
7052
7053 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7054 if let Some(context_menu) = self.context_menu.write().as_mut() {
7055 context_menu.select_first(self.project.as_ref(), cx);
7056 }
7057 }
7058
7059 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7060 if let Some(context_menu) = self.context_menu.write().as_mut() {
7061 context_menu.select_prev(self.project.as_ref(), cx);
7062 }
7063 }
7064
7065 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7066 if let Some(context_menu) = self.context_menu.write().as_mut() {
7067 context_menu.select_next(self.project.as_ref(), cx);
7068 }
7069 }
7070
7071 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7072 if let Some(context_menu) = self.context_menu.write().as_mut() {
7073 context_menu.select_last(self.project.as_ref(), cx);
7074 }
7075 }
7076
7077 pub fn move_to_previous_word_start(
7078 &mut self,
7079 _: &MoveToPreviousWordStart,
7080 cx: &mut ViewContext<Self>,
7081 ) {
7082 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7083 s.move_cursors_with(|map, head, _| {
7084 (
7085 movement::previous_word_start(map, head),
7086 SelectionGoal::None,
7087 )
7088 });
7089 })
7090 }
7091
7092 pub fn move_to_previous_subword_start(
7093 &mut self,
7094 _: &MoveToPreviousSubwordStart,
7095 cx: &mut ViewContext<Self>,
7096 ) {
7097 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7098 s.move_cursors_with(|map, head, _| {
7099 (
7100 movement::previous_subword_start(map, head),
7101 SelectionGoal::None,
7102 )
7103 });
7104 })
7105 }
7106
7107 pub fn select_to_previous_word_start(
7108 &mut self,
7109 _: &SelectToPreviousWordStart,
7110 cx: &mut ViewContext<Self>,
7111 ) {
7112 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7113 s.move_heads_with(|map, head, _| {
7114 (
7115 movement::previous_word_start(map, head),
7116 SelectionGoal::None,
7117 )
7118 });
7119 })
7120 }
7121
7122 pub fn select_to_previous_subword_start(
7123 &mut self,
7124 _: &SelectToPreviousSubwordStart,
7125 cx: &mut ViewContext<Self>,
7126 ) {
7127 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7128 s.move_heads_with(|map, head, _| {
7129 (
7130 movement::previous_subword_start(map, head),
7131 SelectionGoal::None,
7132 )
7133 });
7134 })
7135 }
7136
7137 pub fn delete_to_previous_word_start(
7138 &mut self,
7139 _: &DeleteToPreviousWordStart,
7140 cx: &mut ViewContext<Self>,
7141 ) {
7142 self.transact(cx, |this, cx| {
7143 this.select_autoclose_pair(cx);
7144 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7145 let line_mode = s.line_mode;
7146 s.move_with(|map, selection| {
7147 if selection.is_empty() && !line_mode {
7148 let cursor = movement::previous_word_start(map, selection.head());
7149 selection.set_head(cursor, SelectionGoal::None);
7150 }
7151 });
7152 });
7153 this.insert("", cx);
7154 });
7155 }
7156
7157 pub fn delete_to_previous_subword_start(
7158 &mut self,
7159 _: &DeleteToPreviousSubwordStart,
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_subword_start(map, selection.head());
7169 selection.set_head(cursor, SelectionGoal::None);
7170 }
7171 });
7172 });
7173 this.insert("", cx);
7174 });
7175 }
7176
7177 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7178 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7179 s.move_cursors_with(|map, head, _| {
7180 (movement::next_word_end(map, head), SelectionGoal::None)
7181 });
7182 })
7183 }
7184
7185 pub fn move_to_next_subword_end(
7186 &mut self,
7187 _: &MoveToNextSubwordEnd,
7188 cx: &mut ViewContext<Self>,
7189 ) {
7190 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7191 s.move_cursors_with(|map, head, _| {
7192 (movement::next_subword_end(map, head), SelectionGoal::None)
7193 });
7194 })
7195 }
7196
7197 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7198 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7199 s.move_heads_with(|map, head, _| {
7200 (movement::next_word_end(map, head), SelectionGoal::None)
7201 });
7202 })
7203 }
7204
7205 pub fn select_to_next_subword_end(
7206 &mut self,
7207 _: &SelectToNextSubwordEnd,
7208 cx: &mut ViewContext<Self>,
7209 ) {
7210 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7211 s.move_heads_with(|map, head, _| {
7212 (movement::next_subword_end(map, head), SelectionGoal::None)
7213 });
7214 })
7215 }
7216
7217 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
7218 self.transact(cx, |this, cx| {
7219 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7220 let line_mode = s.line_mode;
7221 s.move_with(|map, selection| {
7222 if selection.is_empty() && !line_mode {
7223 let cursor = movement::next_word_end(map, selection.head());
7224 selection.set_head(cursor, SelectionGoal::None);
7225 }
7226 });
7227 });
7228 this.insert("", cx);
7229 });
7230 }
7231
7232 pub fn delete_to_next_subword_end(
7233 &mut self,
7234 _: &DeleteToNextSubwordEnd,
7235 cx: &mut ViewContext<Self>,
7236 ) {
7237 self.transact(cx, |this, cx| {
7238 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7239 s.move_with(|map, selection| {
7240 if selection.is_empty() {
7241 let cursor = movement::next_subword_end(map, selection.head());
7242 selection.set_head(cursor, SelectionGoal::None);
7243 }
7244 });
7245 });
7246 this.insert("", cx);
7247 });
7248 }
7249
7250 pub fn move_to_beginning_of_line(
7251 &mut self,
7252 action: &MoveToBeginningOfLine,
7253 cx: &mut ViewContext<Self>,
7254 ) {
7255 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7256 s.move_cursors_with(|map, head, _| {
7257 (
7258 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7259 SelectionGoal::None,
7260 )
7261 });
7262 })
7263 }
7264
7265 pub fn select_to_beginning_of_line(
7266 &mut self,
7267 action: &SelectToBeginningOfLine,
7268 cx: &mut ViewContext<Self>,
7269 ) {
7270 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7271 s.move_heads_with(|map, head, _| {
7272 (
7273 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7274 SelectionGoal::None,
7275 )
7276 });
7277 });
7278 }
7279
7280 pub fn delete_to_beginning_of_line(
7281 &mut self,
7282 _: &DeleteToBeginningOfLine,
7283 cx: &mut ViewContext<Self>,
7284 ) {
7285 self.transact(cx, |this, cx| {
7286 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7287 s.move_with(|_, selection| {
7288 selection.reversed = true;
7289 });
7290 });
7291
7292 this.select_to_beginning_of_line(
7293 &SelectToBeginningOfLine {
7294 stop_at_soft_wraps: false,
7295 },
7296 cx,
7297 );
7298 this.backspace(&Backspace, cx);
7299 });
7300 }
7301
7302 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7303 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7304 s.move_cursors_with(|map, head, _| {
7305 (
7306 movement::line_end(map, head, action.stop_at_soft_wraps),
7307 SelectionGoal::None,
7308 )
7309 });
7310 })
7311 }
7312
7313 pub fn select_to_end_of_line(
7314 &mut self,
7315 action: &SelectToEndOfLine,
7316 cx: &mut ViewContext<Self>,
7317 ) {
7318 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7319 s.move_heads_with(|map, head, _| {
7320 (
7321 movement::line_end(map, head, action.stop_at_soft_wraps),
7322 SelectionGoal::None,
7323 )
7324 });
7325 })
7326 }
7327
7328 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7329 self.transact(cx, |this, cx| {
7330 this.select_to_end_of_line(
7331 &SelectToEndOfLine {
7332 stop_at_soft_wraps: false,
7333 },
7334 cx,
7335 );
7336 this.delete(&Delete, cx);
7337 });
7338 }
7339
7340 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7341 self.transact(cx, |this, cx| {
7342 this.select_to_end_of_line(
7343 &SelectToEndOfLine {
7344 stop_at_soft_wraps: false,
7345 },
7346 cx,
7347 );
7348 this.cut(&Cut, cx);
7349 });
7350 }
7351
7352 pub fn move_to_start_of_paragraph(
7353 &mut self,
7354 _: &MoveToStartOfParagraph,
7355 cx: &mut ViewContext<Self>,
7356 ) {
7357 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7358 cx.propagate();
7359 return;
7360 }
7361
7362 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7363 s.move_with(|map, selection| {
7364 selection.collapse_to(
7365 movement::start_of_paragraph(map, selection.head(), 1),
7366 SelectionGoal::None,
7367 )
7368 });
7369 })
7370 }
7371
7372 pub fn move_to_end_of_paragraph(
7373 &mut self,
7374 _: &MoveToEndOfParagraph,
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::end_of_paragraph(map, selection.head(), 1),
7386 SelectionGoal::None,
7387 )
7388 });
7389 })
7390 }
7391
7392 pub fn select_to_start_of_paragraph(
7393 &mut self,
7394 _: &SelectToStartOfParagraph,
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_heads_with(|map, head, _| {
7404 (
7405 movement::start_of_paragraph(map, head, 1),
7406 SelectionGoal::None,
7407 )
7408 });
7409 })
7410 }
7411
7412 pub fn select_to_end_of_paragraph(
7413 &mut self,
7414 _: &SelectToEndOfParagraph,
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::end_of_paragraph(map, head, 1),
7426 SelectionGoal::None,
7427 )
7428 });
7429 })
7430 }
7431
7432 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7433 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7434 cx.propagate();
7435 return;
7436 }
7437
7438 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7439 s.select_ranges(vec![0..0]);
7440 });
7441 }
7442
7443 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7444 let mut selection = self.selections.last::<Point>(cx);
7445 selection.set_head(Point::zero(), SelectionGoal::None);
7446
7447 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7448 s.select(vec![selection]);
7449 });
7450 }
7451
7452 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7453 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7454 cx.propagate();
7455 return;
7456 }
7457
7458 let cursor = self.buffer.read(cx).read(cx).len();
7459 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7460 s.select_ranges(vec![cursor..cursor])
7461 });
7462 }
7463
7464 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7465 self.nav_history = nav_history;
7466 }
7467
7468 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7469 self.nav_history.as_ref()
7470 }
7471
7472 fn push_to_nav_history(
7473 &mut self,
7474 cursor_anchor: Anchor,
7475 new_position: Option<Point>,
7476 cx: &mut ViewContext<Self>,
7477 ) {
7478 if let Some(nav_history) = self.nav_history.as_mut() {
7479 let buffer = self.buffer.read(cx).read(cx);
7480 let cursor_position = cursor_anchor.to_point(&buffer);
7481 let scroll_state = self.scroll_manager.anchor();
7482 let scroll_top_row = scroll_state.top_row(&buffer);
7483 drop(buffer);
7484
7485 if let Some(new_position) = new_position {
7486 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7487 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7488 return;
7489 }
7490 }
7491
7492 nav_history.push(
7493 Some(NavigationData {
7494 cursor_anchor,
7495 cursor_position,
7496 scroll_anchor: scroll_state,
7497 scroll_top_row,
7498 }),
7499 cx,
7500 );
7501 }
7502 }
7503
7504 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7505 let buffer = self.buffer.read(cx).snapshot(cx);
7506 let mut selection = self.selections.first::<usize>(cx);
7507 selection.set_head(buffer.len(), SelectionGoal::None);
7508 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7509 s.select(vec![selection]);
7510 });
7511 }
7512
7513 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7514 let end = self.buffer.read(cx).read(cx).len();
7515 self.change_selections(None, cx, |s| {
7516 s.select_ranges(vec![0..end]);
7517 });
7518 }
7519
7520 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7521 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7522 let mut selections = self.selections.all::<Point>(cx);
7523 let max_point = display_map.buffer_snapshot.max_point();
7524 for selection in &mut selections {
7525 let rows = selection.spanned_rows(true, &display_map);
7526 selection.start = Point::new(rows.start.0, 0);
7527 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7528 selection.reversed = false;
7529 }
7530 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7531 s.select(selections);
7532 });
7533 }
7534
7535 pub fn split_selection_into_lines(
7536 &mut self,
7537 _: &SplitSelectionIntoLines,
7538 cx: &mut ViewContext<Self>,
7539 ) {
7540 let mut to_unfold = Vec::new();
7541 let mut new_selection_ranges = Vec::new();
7542 {
7543 let selections = self.selections.all::<Point>(cx);
7544 let buffer = self.buffer.read(cx).read(cx);
7545 for selection in selections {
7546 for row in selection.start.row..selection.end.row {
7547 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7548 new_selection_ranges.push(cursor..cursor);
7549 }
7550 new_selection_ranges.push(selection.end..selection.end);
7551 to_unfold.push(selection.start..selection.end);
7552 }
7553 }
7554 self.unfold_ranges(to_unfold, true, true, cx);
7555 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7556 s.select_ranges(new_selection_ranges);
7557 });
7558 }
7559
7560 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7561 self.add_selection(true, cx);
7562 }
7563
7564 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7565 self.add_selection(false, cx);
7566 }
7567
7568 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7569 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7570 let mut selections = self.selections.all::<Point>(cx);
7571 let text_layout_details = self.text_layout_details(cx);
7572 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7573 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7574 let range = oldest_selection.display_range(&display_map).sorted();
7575
7576 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7577 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7578 let positions = start_x.min(end_x)..start_x.max(end_x);
7579
7580 selections.clear();
7581 let mut stack = Vec::new();
7582 for row in range.start.row().0..=range.end.row().0 {
7583 if let Some(selection) = self.selections.build_columnar_selection(
7584 &display_map,
7585 DisplayRow(row),
7586 &positions,
7587 oldest_selection.reversed,
7588 &text_layout_details,
7589 ) {
7590 stack.push(selection.id);
7591 selections.push(selection);
7592 }
7593 }
7594
7595 if above {
7596 stack.reverse();
7597 }
7598
7599 AddSelectionsState { above, stack }
7600 });
7601
7602 let last_added_selection = *state.stack.last().unwrap();
7603 let mut new_selections = Vec::new();
7604 if above == state.above {
7605 let end_row = if above {
7606 DisplayRow(0)
7607 } else {
7608 display_map.max_point().row()
7609 };
7610
7611 'outer: for selection in selections {
7612 if selection.id == last_added_selection {
7613 let range = selection.display_range(&display_map).sorted();
7614 debug_assert_eq!(range.start.row(), range.end.row());
7615 let mut row = range.start.row();
7616 let positions =
7617 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7618 px(start)..px(end)
7619 } else {
7620 let start_x =
7621 display_map.x_for_display_point(range.start, &text_layout_details);
7622 let end_x =
7623 display_map.x_for_display_point(range.end, &text_layout_details);
7624 start_x.min(end_x)..start_x.max(end_x)
7625 };
7626
7627 while row != end_row {
7628 if above {
7629 row.0 -= 1;
7630 } else {
7631 row.0 += 1;
7632 }
7633
7634 if let Some(new_selection) = self.selections.build_columnar_selection(
7635 &display_map,
7636 row,
7637 &positions,
7638 selection.reversed,
7639 &text_layout_details,
7640 ) {
7641 state.stack.push(new_selection.id);
7642 if above {
7643 new_selections.push(new_selection);
7644 new_selections.push(selection);
7645 } else {
7646 new_selections.push(selection);
7647 new_selections.push(new_selection);
7648 }
7649
7650 continue 'outer;
7651 }
7652 }
7653 }
7654
7655 new_selections.push(selection);
7656 }
7657 } else {
7658 new_selections = selections;
7659 new_selections.retain(|s| s.id != last_added_selection);
7660 state.stack.pop();
7661 }
7662
7663 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7664 s.select(new_selections);
7665 });
7666 if state.stack.len() > 1 {
7667 self.add_selections_state = Some(state);
7668 }
7669 }
7670
7671 pub fn select_next_match_internal(
7672 &mut self,
7673 display_map: &DisplaySnapshot,
7674 replace_newest: bool,
7675 autoscroll: Option<Autoscroll>,
7676 cx: &mut ViewContext<Self>,
7677 ) -> Result<()> {
7678 fn select_next_match_ranges(
7679 this: &mut Editor,
7680 range: Range<usize>,
7681 replace_newest: bool,
7682 auto_scroll: Option<Autoscroll>,
7683 cx: &mut ViewContext<Editor>,
7684 ) {
7685 this.unfold_ranges([range.clone()], false, true, cx);
7686 this.change_selections(auto_scroll, cx, |s| {
7687 if replace_newest {
7688 s.delete(s.newest_anchor().id);
7689 }
7690 s.insert_range(range.clone());
7691 });
7692 }
7693
7694 let buffer = &display_map.buffer_snapshot;
7695 let mut selections = self.selections.all::<usize>(cx);
7696 if let Some(mut select_next_state) = self.select_next_state.take() {
7697 let query = &select_next_state.query;
7698 if !select_next_state.done {
7699 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7700 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7701 let mut next_selected_range = None;
7702
7703 let bytes_after_last_selection =
7704 buffer.bytes_in_range(last_selection.end..buffer.len());
7705 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7706 let query_matches = query
7707 .stream_find_iter(bytes_after_last_selection)
7708 .map(|result| (last_selection.end, result))
7709 .chain(
7710 query
7711 .stream_find_iter(bytes_before_first_selection)
7712 .map(|result| (0, result)),
7713 );
7714
7715 for (start_offset, query_match) in query_matches {
7716 let query_match = query_match.unwrap(); // can only fail due to I/O
7717 let offset_range =
7718 start_offset + query_match.start()..start_offset + query_match.end();
7719 let display_range = offset_range.start.to_display_point(&display_map)
7720 ..offset_range.end.to_display_point(&display_map);
7721
7722 if !select_next_state.wordwise
7723 || (!movement::is_inside_word(&display_map, display_range.start)
7724 && !movement::is_inside_word(&display_map, display_range.end))
7725 {
7726 // TODO: This is n^2, because we might check all the selections
7727 if !selections
7728 .iter()
7729 .any(|selection| selection.range().overlaps(&offset_range))
7730 {
7731 next_selected_range = Some(offset_range);
7732 break;
7733 }
7734 }
7735 }
7736
7737 if let Some(next_selected_range) = next_selected_range {
7738 select_next_match_ranges(
7739 self,
7740 next_selected_range,
7741 replace_newest,
7742 autoscroll,
7743 cx,
7744 );
7745 } else {
7746 select_next_state.done = true;
7747 }
7748 }
7749
7750 self.select_next_state = Some(select_next_state);
7751 } else {
7752 let mut only_carets = true;
7753 let mut same_text_selected = true;
7754 let mut selected_text = None;
7755
7756 let mut selections_iter = selections.iter().peekable();
7757 while let Some(selection) = selections_iter.next() {
7758 if selection.start != selection.end {
7759 only_carets = false;
7760 }
7761
7762 if same_text_selected {
7763 if selected_text.is_none() {
7764 selected_text =
7765 Some(buffer.text_for_range(selection.range()).collect::<String>());
7766 }
7767
7768 if let Some(next_selection) = selections_iter.peek() {
7769 if next_selection.range().len() == selection.range().len() {
7770 let next_selected_text = buffer
7771 .text_for_range(next_selection.range())
7772 .collect::<String>();
7773 if Some(next_selected_text) != selected_text {
7774 same_text_selected = false;
7775 selected_text = None;
7776 }
7777 } else {
7778 same_text_selected = false;
7779 selected_text = None;
7780 }
7781 }
7782 }
7783 }
7784
7785 if only_carets {
7786 for selection in &mut selections {
7787 let word_range = movement::surrounding_word(
7788 &display_map,
7789 selection.start.to_display_point(&display_map),
7790 );
7791 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7792 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7793 selection.goal = SelectionGoal::None;
7794 selection.reversed = false;
7795 select_next_match_ranges(
7796 self,
7797 selection.start..selection.end,
7798 replace_newest,
7799 autoscroll,
7800 cx,
7801 );
7802 }
7803
7804 if selections.len() == 1 {
7805 let selection = selections
7806 .last()
7807 .expect("ensured that there's only one selection");
7808 let query = buffer
7809 .text_for_range(selection.start..selection.end)
7810 .collect::<String>();
7811 let is_empty = query.is_empty();
7812 let select_state = SelectNextState {
7813 query: AhoCorasick::new(&[query])?,
7814 wordwise: true,
7815 done: is_empty,
7816 };
7817 self.select_next_state = Some(select_state);
7818 } else {
7819 self.select_next_state = None;
7820 }
7821 } else if let Some(selected_text) = selected_text {
7822 self.select_next_state = Some(SelectNextState {
7823 query: AhoCorasick::new(&[selected_text])?,
7824 wordwise: false,
7825 done: false,
7826 });
7827 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7828 }
7829 }
7830 Ok(())
7831 }
7832
7833 pub fn select_all_matches(
7834 &mut self,
7835 _action: &SelectAllMatches,
7836 cx: &mut ViewContext<Self>,
7837 ) -> Result<()> {
7838 self.push_to_selection_history();
7839 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7840
7841 self.select_next_match_internal(&display_map, false, None, cx)?;
7842 let Some(select_next_state) = self.select_next_state.as_mut() else {
7843 return Ok(());
7844 };
7845 if select_next_state.done {
7846 return Ok(());
7847 }
7848
7849 let mut new_selections = self.selections.all::<usize>(cx);
7850
7851 let buffer = &display_map.buffer_snapshot;
7852 let query_matches = select_next_state
7853 .query
7854 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7855
7856 for query_match in query_matches {
7857 let query_match = query_match.unwrap(); // can only fail due to I/O
7858 let offset_range = query_match.start()..query_match.end();
7859 let display_range = offset_range.start.to_display_point(&display_map)
7860 ..offset_range.end.to_display_point(&display_map);
7861
7862 if !select_next_state.wordwise
7863 || (!movement::is_inside_word(&display_map, display_range.start)
7864 && !movement::is_inside_word(&display_map, display_range.end))
7865 {
7866 self.selections.change_with(cx, |selections| {
7867 new_selections.push(Selection {
7868 id: selections.new_selection_id(),
7869 start: offset_range.start,
7870 end: offset_range.end,
7871 reversed: false,
7872 goal: SelectionGoal::None,
7873 });
7874 });
7875 }
7876 }
7877
7878 new_selections.sort_by_key(|selection| selection.start);
7879 let mut ix = 0;
7880 while ix + 1 < new_selections.len() {
7881 let current_selection = &new_selections[ix];
7882 let next_selection = &new_selections[ix + 1];
7883 if current_selection.range().overlaps(&next_selection.range()) {
7884 if current_selection.id < next_selection.id {
7885 new_selections.remove(ix + 1);
7886 } else {
7887 new_selections.remove(ix);
7888 }
7889 } else {
7890 ix += 1;
7891 }
7892 }
7893
7894 select_next_state.done = true;
7895 self.unfold_ranges(
7896 new_selections.iter().map(|selection| selection.range()),
7897 false,
7898 false,
7899 cx,
7900 );
7901 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7902 selections.select(new_selections)
7903 });
7904
7905 Ok(())
7906 }
7907
7908 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7909 self.push_to_selection_history();
7910 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7911 self.select_next_match_internal(
7912 &display_map,
7913 action.replace_newest,
7914 Some(Autoscroll::newest()),
7915 cx,
7916 )?;
7917 Ok(())
7918 }
7919
7920 pub fn select_previous(
7921 &mut self,
7922 action: &SelectPrevious,
7923 cx: &mut ViewContext<Self>,
7924 ) -> Result<()> {
7925 self.push_to_selection_history();
7926 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7927 let buffer = &display_map.buffer_snapshot;
7928 let mut selections = self.selections.all::<usize>(cx);
7929 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7930 let query = &select_prev_state.query;
7931 if !select_prev_state.done {
7932 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7933 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7934 let mut next_selected_range = None;
7935 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7936 let bytes_before_last_selection =
7937 buffer.reversed_bytes_in_range(0..last_selection.start);
7938 let bytes_after_first_selection =
7939 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7940 let query_matches = query
7941 .stream_find_iter(bytes_before_last_selection)
7942 .map(|result| (last_selection.start, result))
7943 .chain(
7944 query
7945 .stream_find_iter(bytes_after_first_selection)
7946 .map(|result| (buffer.len(), result)),
7947 );
7948 for (end_offset, query_match) in query_matches {
7949 let query_match = query_match.unwrap(); // can only fail due to I/O
7950 let offset_range =
7951 end_offset - query_match.end()..end_offset - query_match.start();
7952 let display_range = offset_range.start.to_display_point(&display_map)
7953 ..offset_range.end.to_display_point(&display_map);
7954
7955 if !select_prev_state.wordwise
7956 || (!movement::is_inside_word(&display_map, display_range.start)
7957 && !movement::is_inside_word(&display_map, display_range.end))
7958 {
7959 next_selected_range = Some(offset_range);
7960 break;
7961 }
7962 }
7963
7964 if let Some(next_selected_range) = next_selected_range {
7965 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7966 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7967 if action.replace_newest {
7968 s.delete(s.newest_anchor().id);
7969 }
7970 s.insert_range(next_selected_range);
7971 });
7972 } else {
7973 select_prev_state.done = true;
7974 }
7975 }
7976
7977 self.select_prev_state = Some(select_prev_state);
7978 } else {
7979 let mut only_carets = true;
7980 let mut same_text_selected = true;
7981 let mut selected_text = None;
7982
7983 let mut selections_iter = selections.iter().peekable();
7984 while let Some(selection) = selections_iter.next() {
7985 if selection.start != selection.end {
7986 only_carets = false;
7987 }
7988
7989 if same_text_selected {
7990 if selected_text.is_none() {
7991 selected_text =
7992 Some(buffer.text_for_range(selection.range()).collect::<String>());
7993 }
7994
7995 if let Some(next_selection) = selections_iter.peek() {
7996 if next_selection.range().len() == selection.range().len() {
7997 let next_selected_text = buffer
7998 .text_for_range(next_selection.range())
7999 .collect::<String>();
8000 if Some(next_selected_text) != selected_text {
8001 same_text_selected = false;
8002 selected_text = None;
8003 }
8004 } else {
8005 same_text_selected = false;
8006 selected_text = None;
8007 }
8008 }
8009 }
8010 }
8011
8012 if only_carets {
8013 for selection in &mut selections {
8014 let word_range = movement::surrounding_word(
8015 &display_map,
8016 selection.start.to_display_point(&display_map),
8017 );
8018 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8019 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8020 selection.goal = SelectionGoal::None;
8021 selection.reversed = false;
8022 }
8023 if selections.len() == 1 {
8024 let selection = selections
8025 .last()
8026 .expect("ensured that there's only one selection");
8027 let query = buffer
8028 .text_for_range(selection.start..selection.end)
8029 .collect::<String>();
8030 let is_empty = query.is_empty();
8031 let select_state = SelectNextState {
8032 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8033 wordwise: true,
8034 done: is_empty,
8035 };
8036 self.select_prev_state = Some(select_state);
8037 } else {
8038 self.select_prev_state = None;
8039 }
8040
8041 self.unfold_ranges(
8042 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8043 false,
8044 true,
8045 cx,
8046 );
8047 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8048 s.select(selections);
8049 });
8050 } else if let Some(selected_text) = selected_text {
8051 self.select_prev_state = Some(SelectNextState {
8052 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8053 wordwise: false,
8054 done: false,
8055 });
8056 self.select_previous(action, cx)?;
8057 }
8058 }
8059 Ok(())
8060 }
8061
8062 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8063 let text_layout_details = &self.text_layout_details(cx);
8064 self.transact(cx, |this, cx| {
8065 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8066 let mut edits = Vec::new();
8067 let mut selection_edit_ranges = Vec::new();
8068 let mut last_toggled_row = None;
8069 let snapshot = this.buffer.read(cx).read(cx);
8070 let empty_str: Arc<str> = "".into();
8071 let mut suffixes_inserted = Vec::new();
8072
8073 fn comment_prefix_range(
8074 snapshot: &MultiBufferSnapshot,
8075 row: MultiBufferRow,
8076 comment_prefix: &str,
8077 comment_prefix_whitespace: &str,
8078 ) -> Range<Point> {
8079 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8080
8081 let mut line_bytes = snapshot
8082 .bytes_in_range(start..snapshot.max_point())
8083 .flatten()
8084 .copied();
8085
8086 // If this line currently begins with the line comment prefix, then record
8087 // the range containing the prefix.
8088 if line_bytes
8089 .by_ref()
8090 .take(comment_prefix.len())
8091 .eq(comment_prefix.bytes())
8092 {
8093 // Include any whitespace that matches the comment prefix.
8094 let matching_whitespace_len = line_bytes
8095 .zip(comment_prefix_whitespace.bytes())
8096 .take_while(|(a, b)| a == b)
8097 .count() as u32;
8098 let end = Point::new(
8099 start.row,
8100 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8101 );
8102 start..end
8103 } else {
8104 start..start
8105 }
8106 }
8107
8108 fn comment_suffix_range(
8109 snapshot: &MultiBufferSnapshot,
8110 row: MultiBufferRow,
8111 comment_suffix: &str,
8112 comment_suffix_has_leading_space: bool,
8113 ) -> Range<Point> {
8114 let end = Point::new(row.0, snapshot.line_len(row));
8115 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8116
8117 let mut line_end_bytes = snapshot
8118 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8119 .flatten()
8120 .copied();
8121
8122 let leading_space_len = if suffix_start_column > 0
8123 && line_end_bytes.next() == Some(b' ')
8124 && comment_suffix_has_leading_space
8125 {
8126 1
8127 } else {
8128 0
8129 };
8130
8131 // If this line currently begins with the line comment prefix, then record
8132 // the range containing the prefix.
8133 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8134 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8135 start..end
8136 } else {
8137 end..end
8138 }
8139 }
8140
8141 // TODO: Handle selections that cross excerpts
8142 for selection in &mut selections {
8143 let start_column = snapshot
8144 .indent_size_for_line(MultiBufferRow(selection.start.row))
8145 .len;
8146 let language = if let Some(language) =
8147 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8148 {
8149 language
8150 } else {
8151 continue;
8152 };
8153
8154 selection_edit_ranges.clear();
8155
8156 // If multiple selections contain a given row, avoid processing that
8157 // row more than once.
8158 let mut start_row = MultiBufferRow(selection.start.row);
8159 if last_toggled_row == Some(start_row) {
8160 start_row = start_row.next_row();
8161 }
8162 let end_row =
8163 if selection.end.row > selection.start.row && selection.end.column == 0 {
8164 MultiBufferRow(selection.end.row - 1)
8165 } else {
8166 MultiBufferRow(selection.end.row)
8167 };
8168 last_toggled_row = Some(end_row);
8169
8170 if start_row > end_row {
8171 continue;
8172 }
8173
8174 // If the language has line comments, toggle those.
8175 let full_comment_prefixes = language.line_comment_prefixes();
8176 if !full_comment_prefixes.is_empty() {
8177 let first_prefix = full_comment_prefixes
8178 .first()
8179 .expect("prefixes is non-empty");
8180 let prefix_trimmed_lengths = full_comment_prefixes
8181 .iter()
8182 .map(|p| p.trim_end_matches(' ').len())
8183 .collect::<SmallVec<[usize; 4]>>();
8184
8185 let mut all_selection_lines_are_comments = true;
8186
8187 for row in start_row.0..=end_row.0 {
8188 let row = MultiBufferRow(row);
8189 if start_row < end_row && snapshot.is_line_blank(row) {
8190 continue;
8191 }
8192
8193 let prefix_range = full_comment_prefixes
8194 .iter()
8195 .zip(prefix_trimmed_lengths.iter().copied())
8196 .map(|(prefix, trimmed_prefix_len)| {
8197 comment_prefix_range(
8198 snapshot.deref(),
8199 row,
8200 &prefix[..trimmed_prefix_len],
8201 &prefix[trimmed_prefix_len..],
8202 )
8203 })
8204 .max_by_key(|range| range.end.column - range.start.column)
8205 .expect("prefixes is non-empty");
8206
8207 if prefix_range.is_empty() {
8208 all_selection_lines_are_comments = false;
8209 }
8210
8211 selection_edit_ranges.push(prefix_range);
8212 }
8213
8214 if all_selection_lines_are_comments {
8215 edits.extend(
8216 selection_edit_ranges
8217 .iter()
8218 .cloned()
8219 .map(|range| (range, empty_str.clone())),
8220 );
8221 } else {
8222 let min_column = selection_edit_ranges
8223 .iter()
8224 .map(|range| range.start.column)
8225 .min()
8226 .unwrap_or(0);
8227 edits.extend(selection_edit_ranges.iter().map(|range| {
8228 let position = Point::new(range.start.row, min_column);
8229 (position..position, first_prefix.clone())
8230 }));
8231 }
8232 } else if let Some((full_comment_prefix, comment_suffix)) =
8233 language.block_comment_delimiters()
8234 {
8235 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8236 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8237 let prefix_range = comment_prefix_range(
8238 snapshot.deref(),
8239 start_row,
8240 comment_prefix,
8241 comment_prefix_whitespace,
8242 );
8243 let suffix_range = comment_suffix_range(
8244 snapshot.deref(),
8245 end_row,
8246 comment_suffix.trim_start_matches(' '),
8247 comment_suffix.starts_with(' '),
8248 );
8249
8250 if prefix_range.is_empty() || suffix_range.is_empty() {
8251 edits.push((
8252 prefix_range.start..prefix_range.start,
8253 full_comment_prefix.clone(),
8254 ));
8255 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8256 suffixes_inserted.push((end_row, comment_suffix.len()));
8257 } else {
8258 edits.push((prefix_range, empty_str.clone()));
8259 edits.push((suffix_range, empty_str.clone()));
8260 }
8261 } else {
8262 continue;
8263 }
8264 }
8265
8266 drop(snapshot);
8267 this.buffer.update(cx, |buffer, cx| {
8268 buffer.edit(edits, None, cx);
8269 });
8270
8271 // Adjust selections so that they end before any comment suffixes that
8272 // were inserted.
8273 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8274 let mut selections = this.selections.all::<Point>(cx);
8275 let snapshot = this.buffer.read(cx).read(cx);
8276 for selection in &mut selections {
8277 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8278 match row.cmp(&MultiBufferRow(selection.end.row)) {
8279 Ordering::Less => {
8280 suffixes_inserted.next();
8281 continue;
8282 }
8283 Ordering::Greater => break,
8284 Ordering::Equal => {
8285 if selection.end.column == snapshot.line_len(row) {
8286 if selection.is_empty() {
8287 selection.start.column -= suffix_len as u32;
8288 }
8289 selection.end.column -= suffix_len as u32;
8290 }
8291 break;
8292 }
8293 }
8294 }
8295 }
8296
8297 drop(snapshot);
8298 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8299
8300 let selections = this.selections.all::<Point>(cx);
8301 let selections_on_single_row = selections.windows(2).all(|selections| {
8302 selections[0].start.row == selections[1].start.row
8303 && selections[0].end.row == selections[1].end.row
8304 && selections[0].start.row == selections[0].end.row
8305 });
8306 let selections_selecting = selections
8307 .iter()
8308 .any(|selection| selection.start != selection.end);
8309 let advance_downwards = action.advance_downwards
8310 && selections_on_single_row
8311 && !selections_selecting
8312 && !matches!(this.mode, EditorMode::SingleLine { .. });
8313
8314 if advance_downwards {
8315 let snapshot = this.buffer.read(cx).snapshot(cx);
8316
8317 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8318 s.move_cursors_with(|display_snapshot, display_point, _| {
8319 let mut point = display_point.to_point(display_snapshot);
8320 point.row += 1;
8321 point = snapshot.clip_point(point, Bias::Left);
8322 let display_point = point.to_display_point(display_snapshot);
8323 let goal = SelectionGoal::HorizontalPosition(
8324 display_snapshot
8325 .x_for_display_point(display_point, &text_layout_details)
8326 .into(),
8327 );
8328 (display_point, goal)
8329 })
8330 });
8331 }
8332 });
8333 }
8334
8335 pub fn select_enclosing_symbol(
8336 &mut self,
8337 _: &SelectEnclosingSymbol,
8338 cx: &mut ViewContext<Self>,
8339 ) {
8340 let buffer = self.buffer.read(cx).snapshot(cx);
8341 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8342
8343 fn update_selection(
8344 selection: &Selection<usize>,
8345 buffer_snap: &MultiBufferSnapshot,
8346 ) -> Option<Selection<usize>> {
8347 let cursor = selection.head();
8348 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8349 for symbol in symbols.iter().rev() {
8350 let start = symbol.range.start.to_offset(&buffer_snap);
8351 let end = symbol.range.end.to_offset(&buffer_snap);
8352 let new_range = start..end;
8353 if start < selection.start || end > selection.end {
8354 return Some(Selection {
8355 id: selection.id,
8356 start: new_range.start,
8357 end: new_range.end,
8358 goal: SelectionGoal::None,
8359 reversed: selection.reversed,
8360 });
8361 }
8362 }
8363 None
8364 }
8365
8366 let mut selected_larger_symbol = false;
8367 let new_selections = old_selections
8368 .iter()
8369 .map(|selection| match update_selection(selection, &buffer) {
8370 Some(new_selection) => {
8371 if new_selection.range() != selection.range() {
8372 selected_larger_symbol = true;
8373 }
8374 new_selection
8375 }
8376 None => selection.clone(),
8377 })
8378 .collect::<Vec<_>>();
8379
8380 if selected_larger_symbol {
8381 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8382 s.select(new_selections);
8383 });
8384 }
8385 }
8386
8387 pub fn select_larger_syntax_node(
8388 &mut self,
8389 _: &SelectLargerSyntaxNode,
8390 cx: &mut ViewContext<Self>,
8391 ) {
8392 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8393 let buffer = self.buffer.read(cx).snapshot(cx);
8394 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8395
8396 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8397 let mut selected_larger_node = false;
8398 let new_selections = old_selections
8399 .iter()
8400 .map(|selection| {
8401 let old_range = selection.start..selection.end;
8402 let mut new_range = old_range.clone();
8403 while let Some(containing_range) =
8404 buffer.range_for_syntax_ancestor(new_range.clone())
8405 {
8406 new_range = containing_range;
8407 if !display_map.intersects_fold(new_range.start)
8408 && !display_map.intersects_fold(new_range.end)
8409 {
8410 break;
8411 }
8412 }
8413
8414 selected_larger_node |= new_range != old_range;
8415 Selection {
8416 id: selection.id,
8417 start: new_range.start,
8418 end: new_range.end,
8419 goal: SelectionGoal::None,
8420 reversed: selection.reversed,
8421 }
8422 })
8423 .collect::<Vec<_>>();
8424
8425 if selected_larger_node {
8426 stack.push(old_selections);
8427 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8428 s.select(new_selections);
8429 });
8430 }
8431 self.select_larger_syntax_node_stack = stack;
8432 }
8433
8434 pub fn select_smaller_syntax_node(
8435 &mut self,
8436 _: &SelectSmallerSyntaxNode,
8437 cx: &mut ViewContext<Self>,
8438 ) {
8439 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8440 if let Some(selections) = stack.pop() {
8441 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8442 s.select(selections.to_vec());
8443 });
8444 }
8445 self.select_larger_syntax_node_stack = stack;
8446 }
8447
8448 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8449 if !EditorSettings::get_global(cx).gutter.runnables {
8450 self.clear_tasks();
8451 return Task::ready(());
8452 }
8453 let project = self.project.clone();
8454 cx.spawn(|this, mut cx| async move {
8455 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8456 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8457 }) else {
8458 return;
8459 };
8460
8461 let Some(project) = project else {
8462 return;
8463 };
8464
8465 let hide_runnables = project
8466 .update(&mut cx, |project, cx| {
8467 // Do not display any test indicators in non-dev server remote projects.
8468 project.is_remote() && project.ssh_connection_string(cx).is_none()
8469 })
8470 .unwrap_or(true);
8471 if hide_runnables {
8472 return;
8473 }
8474 let new_rows =
8475 cx.background_executor()
8476 .spawn({
8477 let snapshot = display_snapshot.clone();
8478 async move {
8479 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8480 }
8481 })
8482 .await;
8483 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8484
8485 this.update(&mut cx, |this, _| {
8486 this.clear_tasks();
8487 for (key, value) in rows {
8488 this.insert_tasks(key, value);
8489 }
8490 })
8491 .ok();
8492 })
8493 }
8494 fn fetch_runnable_ranges(
8495 snapshot: &DisplaySnapshot,
8496 range: Range<Anchor>,
8497 ) -> Vec<language::RunnableRange> {
8498 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8499 }
8500
8501 fn runnable_rows(
8502 project: Model<Project>,
8503 snapshot: DisplaySnapshot,
8504 runnable_ranges: Vec<RunnableRange>,
8505 mut cx: AsyncWindowContext,
8506 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8507 runnable_ranges
8508 .into_iter()
8509 .filter_map(|mut runnable| {
8510 let tasks = cx
8511 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8512 .ok()?;
8513 if tasks.is_empty() {
8514 return None;
8515 }
8516
8517 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8518
8519 let row = snapshot
8520 .buffer_snapshot
8521 .buffer_line_for_row(MultiBufferRow(point.row))?
8522 .1
8523 .start
8524 .row;
8525
8526 let context_range =
8527 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8528 Some((
8529 (runnable.buffer_id, row),
8530 RunnableTasks {
8531 templates: tasks,
8532 offset: MultiBufferOffset(runnable.run_range.start),
8533 context_range,
8534 column: point.column,
8535 extra_variables: runnable.extra_captures,
8536 },
8537 ))
8538 })
8539 .collect()
8540 }
8541
8542 fn templates_with_tags(
8543 project: &Model<Project>,
8544 runnable: &mut Runnable,
8545 cx: &WindowContext<'_>,
8546 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8547 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8548 let (worktree_id, file) = project
8549 .buffer_for_id(runnable.buffer, cx)
8550 .and_then(|buffer| buffer.read(cx).file())
8551 .map(|file| (WorktreeId::from_usize(file.worktree_id()), file.clone()))
8552 .unzip();
8553
8554 (project.task_inventory().clone(), worktree_id, file)
8555 });
8556
8557 let inventory = inventory.read(cx);
8558 let tags = mem::take(&mut runnable.tags);
8559 let mut tags: Vec<_> = tags
8560 .into_iter()
8561 .flat_map(|tag| {
8562 let tag = tag.0.clone();
8563 inventory
8564 .list_tasks(
8565 file.clone(),
8566 Some(runnable.language.clone()),
8567 worktree_id,
8568 cx,
8569 )
8570 .into_iter()
8571 .filter(move |(_, template)| {
8572 template.tags.iter().any(|source_tag| source_tag == &tag)
8573 })
8574 })
8575 .sorted_by_key(|(kind, _)| kind.to_owned())
8576 .collect();
8577 if let Some((leading_tag_source, _)) = tags.first() {
8578 // Strongest source wins; if we have worktree tag binding, prefer that to
8579 // global and language bindings;
8580 // if we have a global binding, prefer that to language binding.
8581 let first_mismatch = tags
8582 .iter()
8583 .position(|(tag_source, _)| tag_source != leading_tag_source);
8584 if let Some(index) = first_mismatch {
8585 tags.truncate(index);
8586 }
8587 }
8588
8589 tags
8590 }
8591
8592 pub fn move_to_enclosing_bracket(
8593 &mut self,
8594 _: &MoveToEnclosingBracket,
8595 cx: &mut ViewContext<Self>,
8596 ) {
8597 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8598 s.move_offsets_with(|snapshot, selection| {
8599 let Some(enclosing_bracket_ranges) =
8600 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8601 else {
8602 return;
8603 };
8604
8605 let mut best_length = usize::MAX;
8606 let mut best_inside = false;
8607 let mut best_in_bracket_range = false;
8608 let mut best_destination = None;
8609 for (open, close) in enclosing_bracket_ranges {
8610 let close = close.to_inclusive();
8611 let length = close.end() - open.start;
8612 let inside = selection.start >= open.end && selection.end <= *close.start();
8613 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8614 || close.contains(&selection.head());
8615
8616 // If best is next to a bracket and current isn't, skip
8617 if !in_bracket_range && best_in_bracket_range {
8618 continue;
8619 }
8620
8621 // Prefer smaller lengths unless best is inside and current isn't
8622 if length > best_length && (best_inside || !inside) {
8623 continue;
8624 }
8625
8626 best_length = length;
8627 best_inside = inside;
8628 best_in_bracket_range = in_bracket_range;
8629 best_destination = Some(
8630 if close.contains(&selection.start) && close.contains(&selection.end) {
8631 if inside {
8632 open.end
8633 } else {
8634 open.start
8635 }
8636 } else {
8637 if inside {
8638 *close.start()
8639 } else {
8640 *close.end()
8641 }
8642 },
8643 );
8644 }
8645
8646 if let Some(destination) = best_destination {
8647 selection.collapse_to(destination, SelectionGoal::None);
8648 }
8649 })
8650 });
8651 }
8652
8653 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8654 self.end_selection(cx);
8655 self.selection_history.mode = SelectionHistoryMode::Undoing;
8656 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8657 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8658 self.select_next_state = entry.select_next_state;
8659 self.select_prev_state = entry.select_prev_state;
8660 self.add_selections_state = entry.add_selections_state;
8661 self.request_autoscroll(Autoscroll::newest(), cx);
8662 }
8663 self.selection_history.mode = SelectionHistoryMode::Normal;
8664 }
8665
8666 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8667 self.end_selection(cx);
8668 self.selection_history.mode = SelectionHistoryMode::Redoing;
8669 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8670 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8671 self.select_next_state = entry.select_next_state;
8672 self.select_prev_state = entry.select_prev_state;
8673 self.add_selections_state = entry.add_selections_state;
8674 self.request_autoscroll(Autoscroll::newest(), cx);
8675 }
8676 self.selection_history.mode = SelectionHistoryMode::Normal;
8677 }
8678
8679 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8680 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8681 }
8682
8683 pub fn expand_excerpts_down(
8684 &mut self,
8685 action: &ExpandExcerptsDown,
8686 cx: &mut ViewContext<Self>,
8687 ) {
8688 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8689 }
8690
8691 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8692 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8693 }
8694
8695 pub fn expand_excerpts_for_direction(
8696 &mut self,
8697 lines: u32,
8698 direction: ExpandExcerptDirection,
8699 cx: &mut ViewContext<Self>,
8700 ) {
8701 let selections = self.selections.disjoint_anchors();
8702
8703 let lines = if lines == 0 {
8704 EditorSettings::get_global(cx).expand_excerpt_lines
8705 } else {
8706 lines
8707 };
8708
8709 self.buffer.update(cx, |buffer, cx| {
8710 buffer.expand_excerpts(
8711 selections
8712 .into_iter()
8713 .map(|selection| selection.head().excerpt_id)
8714 .dedup(),
8715 lines,
8716 direction,
8717 cx,
8718 )
8719 })
8720 }
8721
8722 pub fn expand_excerpt(
8723 &mut self,
8724 excerpt: ExcerptId,
8725 direction: ExpandExcerptDirection,
8726 cx: &mut ViewContext<Self>,
8727 ) {
8728 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8729 self.buffer.update(cx, |buffer, cx| {
8730 buffer.expand_excerpts([excerpt], lines, direction, cx)
8731 })
8732 }
8733
8734 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8735 self.go_to_diagnostic_impl(Direction::Next, cx)
8736 }
8737
8738 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8739 self.go_to_diagnostic_impl(Direction::Prev, cx)
8740 }
8741
8742 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8743 let buffer = self.buffer.read(cx).snapshot(cx);
8744 let selection = self.selections.newest::<usize>(cx);
8745
8746 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8747 if direction == Direction::Next {
8748 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8749 let (group_id, jump_to) = popover.activation_info();
8750 if self.activate_diagnostics(group_id, cx) {
8751 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8752 let mut new_selection = s.newest_anchor().clone();
8753 new_selection.collapse_to(jump_to, SelectionGoal::None);
8754 s.select_anchors(vec![new_selection.clone()]);
8755 });
8756 }
8757 return;
8758 }
8759 }
8760
8761 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8762 active_diagnostics
8763 .primary_range
8764 .to_offset(&buffer)
8765 .to_inclusive()
8766 });
8767 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8768 if active_primary_range.contains(&selection.head()) {
8769 *active_primary_range.start()
8770 } else {
8771 selection.head()
8772 }
8773 } else {
8774 selection.head()
8775 };
8776 let snapshot = self.snapshot(cx);
8777 loop {
8778 let diagnostics = if direction == Direction::Prev {
8779 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8780 } else {
8781 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8782 }
8783 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8784 let group = diagnostics
8785 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8786 // be sorted in a stable way
8787 // skip until we are at current active diagnostic, if it exists
8788 .skip_while(|entry| {
8789 (match direction {
8790 Direction::Prev => entry.range.start >= search_start,
8791 Direction::Next => entry.range.start <= search_start,
8792 }) && self
8793 .active_diagnostics
8794 .as_ref()
8795 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8796 })
8797 .find_map(|entry| {
8798 if entry.diagnostic.is_primary
8799 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8800 && !entry.range.is_empty()
8801 // if we match with the active diagnostic, skip it
8802 && Some(entry.diagnostic.group_id)
8803 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8804 {
8805 Some((entry.range, entry.diagnostic.group_id))
8806 } else {
8807 None
8808 }
8809 });
8810
8811 if let Some((primary_range, group_id)) = group {
8812 if self.activate_diagnostics(group_id, cx) {
8813 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8814 s.select(vec![Selection {
8815 id: selection.id,
8816 start: primary_range.start,
8817 end: primary_range.start,
8818 reversed: false,
8819 goal: SelectionGoal::None,
8820 }]);
8821 });
8822 }
8823 break;
8824 } else {
8825 // Cycle around to the start of the buffer, potentially moving back to the start of
8826 // the currently active diagnostic.
8827 active_primary_range.take();
8828 if direction == Direction::Prev {
8829 if search_start == buffer.len() {
8830 break;
8831 } else {
8832 search_start = buffer.len();
8833 }
8834 } else if search_start == 0 {
8835 break;
8836 } else {
8837 search_start = 0;
8838 }
8839 }
8840 }
8841 }
8842
8843 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8844 let snapshot = self
8845 .display_map
8846 .update(cx, |display_map, cx| display_map.snapshot(cx));
8847 let selection = self.selections.newest::<Point>(cx);
8848
8849 if !self.seek_in_direction(
8850 &snapshot,
8851 selection.head(),
8852 false,
8853 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8854 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8855 ),
8856 cx,
8857 ) {
8858 let wrapped_point = Point::zero();
8859 self.seek_in_direction(
8860 &snapshot,
8861 wrapped_point,
8862 true,
8863 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8864 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8865 ),
8866 cx,
8867 );
8868 }
8869 }
8870
8871 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8872 let snapshot = self
8873 .display_map
8874 .update(cx, |display_map, cx| display_map.snapshot(cx));
8875 let selection = self.selections.newest::<Point>(cx);
8876
8877 if !self.seek_in_direction(
8878 &snapshot,
8879 selection.head(),
8880 false,
8881 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8882 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8883 ),
8884 cx,
8885 ) {
8886 let wrapped_point = snapshot.buffer_snapshot.max_point();
8887 self.seek_in_direction(
8888 &snapshot,
8889 wrapped_point,
8890 true,
8891 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8892 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8893 ),
8894 cx,
8895 );
8896 }
8897 }
8898
8899 fn seek_in_direction(
8900 &mut self,
8901 snapshot: &DisplaySnapshot,
8902 initial_point: Point,
8903 is_wrapped: bool,
8904 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8905 cx: &mut ViewContext<Editor>,
8906 ) -> bool {
8907 let display_point = initial_point.to_display_point(snapshot);
8908 let mut hunks = hunks
8909 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8910 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
8911 .dedup();
8912
8913 if let Some(hunk) = hunks.next() {
8914 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8915 let row = hunk.start_display_row();
8916 let point = DisplayPoint::new(row, 0);
8917 s.select_display_ranges([point..point]);
8918 });
8919
8920 true
8921 } else {
8922 false
8923 }
8924 }
8925
8926 pub fn go_to_definition(
8927 &mut self,
8928 _: &GoToDefinition,
8929 cx: &mut ViewContext<Self>,
8930 ) -> Task<Result<bool>> {
8931 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8932 }
8933
8934 pub fn go_to_implementation(
8935 &mut self,
8936 _: &GoToImplementation,
8937 cx: &mut ViewContext<Self>,
8938 ) -> Task<Result<bool>> {
8939 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8940 }
8941
8942 pub fn go_to_implementation_split(
8943 &mut self,
8944 _: &GoToImplementationSplit,
8945 cx: &mut ViewContext<Self>,
8946 ) -> Task<Result<bool>> {
8947 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8948 }
8949
8950 pub fn go_to_type_definition(
8951 &mut self,
8952 _: &GoToTypeDefinition,
8953 cx: &mut ViewContext<Self>,
8954 ) -> Task<Result<bool>> {
8955 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8956 }
8957
8958 pub fn go_to_definition_split(
8959 &mut self,
8960 _: &GoToDefinitionSplit,
8961 cx: &mut ViewContext<Self>,
8962 ) -> Task<Result<bool>> {
8963 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8964 }
8965
8966 pub fn go_to_type_definition_split(
8967 &mut self,
8968 _: &GoToTypeDefinitionSplit,
8969 cx: &mut ViewContext<Self>,
8970 ) -> Task<Result<bool>> {
8971 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8972 }
8973
8974 fn go_to_definition_of_kind(
8975 &mut self,
8976 kind: GotoDefinitionKind,
8977 split: bool,
8978 cx: &mut ViewContext<Self>,
8979 ) -> Task<Result<bool>> {
8980 let Some(workspace) = self.workspace() else {
8981 return Task::ready(Ok(false));
8982 };
8983 let buffer = self.buffer.read(cx);
8984 let head = self.selections.newest::<usize>(cx).head();
8985 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8986 text_anchor
8987 } else {
8988 return Task::ready(Ok(false));
8989 };
8990
8991 let project = workspace.read(cx).project().clone();
8992 let definitions = project.update(cx, |project, cx| match kind {
8993 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8994 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8995 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8996 });
8997
8998 cx.spawn(|editor, mut cx| async move {
8999 let definitions = definitions.await?;
9000 let navigated = editor
9001 .update(&mut cx, |editor, cx| {
9002 editor.navigate_to_hover_links(
9003 Some(kind),
9004 definitions
9005 .into_iter()
9006 .filter(|location| {
9007 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9008 })
9009 .map(HoverLink::Text)
9010 .collect::<Vec<_>>(),
9011 split,
9012 cx,
9013 )
9014 })?
9015 .await?;
9016 anyhow::Ok(navigated)
9017 })
9018 }
9019
9020 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9021 let position = self.selections.newest_anchor().head();
9022 let Some((buffer, buffer_position)) =
9023 self.buffer.read(cx).text_anchor_for_position(position, cx)
9024 else {
9025 return;
9026 };
9027
9028 cx.spawn(|editor, mut cx| async move {
9029 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9030 editor.update(&mut cx, |_, cx| {
9031 cx.open_url(&url);
9032 })
9033 } else {
9034 Ok(())
9035 }
9036 })
9037 .detach();
9038 }
9039
9040 pub(crate) fn navigate_to_hover_links(
9041 &mut self,
9042 kind: Option<GotoDefinitionKind>,
9043 mut definitions: Vec<HoverLink>,
9044 split: bool,
9045 cx: &mut ViewContext<Editor>,
9046 ) -> Task<Result<bool>> {
9047 // If there is one definition, just open it directly
9048 if definitions.len() == 1 {
9049 let definition = definitions.pop().unwrap();
9050 let target_task = match definition {
9051 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9052 HoverLink::InlayHint(lsp_location, server_id) => {
9053 self.compute_target_location(lsp_location, server_id, cx)
9054 }
9055 HoverLink::Url(url) => {
9056 cx.open_url(&url);
9057 Task::ready(Ok(None))
9058 }
9059 };
9060 cx.spawn(|editor, mut cx| async move {
9061 let target = target_task.await.context("target resolution task")?;
9062 if let Some(target) = target {
9063 editor.update(&mut cx, |editor, cx| {
9064 let Some(workspace) = editor.workspace() else {
9065 return false;
9066 };
9067 let pane = workspace.read(cx).active_pane().clone();
9068
9069 let range = target.range.to_offset(target.buffer.read(cx));
9070 let range = editor.range_for_match(&range);
9071
9072 /// If select range has more than one line, we
9073 /// just point the cursor to range.start.
9074 fn check_multiline_range(
9075 buffer: &Buffer,
9076 range: Range<usize>,
9077 ) -> Range<usize> {
9078 if buffer.offset_to_point(range.start).row
9079 == buffer.offset_to_point(range.end).row
9080 {
9081 range
9082 } else {
9083 range.start..range.start
9084 }
9085 }
9086
9087 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9088 let buffer = target.buffer.read(cx);
9089 let range = check_multiline_range(buffer, range);
9090 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9091 s.select_ranges([range]);
9092 });
9093 } else {
9094 cx.window_context().defer(move |cx| {
9095 let target_editor: View<Self> =
9096 workspace.update(cx, |workspace, cx| {
9097 let pane = if split {
9098 workspace.adjacent_pane(cx)
9099 } else {
9100 workspace.active_pane().clone()
9101 };
9102
9103 workspace.open_project_item(
9104 pane,
9105 target.buffer.clone(),
9106 true,
9107 true,
9108 cx,
9109 )
9110 });
9111 target_editor.update(cx, |target_editor, cx| {
9112 // When selecting a definition in a different buffer, disable the nav history
9113 // to avoid creating a history entry at the previous cursor location.
9114 pane.update(cx, |pane, _| pane.disable_history());
9115 let buffer = target.buffer.read(cx);
9116 let range = check_multiline_range(buffer, range);
9117 target_editor.change_selections(
9118 Some(Autoscroll::focused()),
9119 cx,
9120 |s| {
9121 s.select_ranges([range]);
9122 },
9123 );
9124 pane.update(cx, |pane, _| pane.enable_history());
9125 });
9126 });
9127 }
9128 true
9129 })
9130 } else {
9131 Ok(false)
9132 }
9133 })
9134 } else if !definitions.is_empty() {
9135 let replica_id = self.replica_id(cx);
9136 cx.spawn(|editor, mut cx| async move {
9137 let (title, location_tasks, workspace) = editor
9138 .update(&mut cx, |editor, cx| {
9139 let tab_kind = match kind {
9140 Some(GotoDefinitionKind::Implementation) => "Implementations",
9141 _ => "Definitions",
9142 };
9143 let title = definitions
9144 .iter()
9145 .find_map(|definition| match definition {
9146 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9147 let buffer = origin.buffer.read(cx);
9148 format!(
9149 "{} for {}",
9150 tab_kind,
9151 buffer
9152 .text_for_range(origin.range.clone())
9153 .collect::<String>()
9154 )
9155 }),
9156 HoverLink::InlayHint(_, _) => None,
9157 HoverLink::Url(_) => None,
9158 })
9159 .unwrap_or(tab_kind.to_string());
9160 let location_tasks = definitions
9161 .into_iter()
9162 .map(|definition| match definition {
9163 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9164 HoverLink::InlayHint(lsp_location, server_id) => {
9165 editor.compute_target_location(lsp_location, server_id, cx)
9166 }
9167 HoverLink::Url(_) => Task::ready(Ok(None)),
9168 })
9169 .collect::<Vec<_>>();
9170 (title, location_tasks, editor.workspace().clone())
9171 })
9172 .context("location tasks preparation")?;
9173
9174 let locations = futures::future::join_all(location_tasks)
9175 .await
9176 .into_iter()
9177 .filter_map(|location| location.transpose())
9178 .collect::<Result<_>>()
9179 .context("location tasks")?;
9180
9181 let Some(workspace) = workspace else {
9182 return Ok(false);
9183 };
9184 let opened = workspace
9185 .update(&mut cx, |workspace, cx| {
9186 Self::open_locations_in_multibuffer(
9187 workspace, locations, replica_id, title, split, cx,
9188 )
9189 })
9190 .ok();
9191
9192 anyhow::Ok(opened.is_some())
9193 })
9194 } else {
9195 Task::ready(Ok(false))
9196 }
9197 }
9198
9199 fn compute_target_location(
9200 &self,
9201 lsp_location: lsp::Location,
9202 server_id: LanguageServerId,
9203 cx: &mut ViewContext<Editor>,
9204 ) -> Task<anyhow::Result<Option<Location>>> {
9205 let Some(project) = self.project.clone() else {
9206 return Task::Ready(Some(Ok(None)));
9207 };
9208
9209 cx.spawn(move |editor, mut cx| async move {
9210 let location_task = editor.update(&mut cx, |editor, cx| {
9211 project.update(cx, |project, cx| {
9212 let language_server_name =
9213 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9214 project
9215 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9216 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9217 });
9218 language_server_name.map(|language_server_name| {
9219 project.open_local_buffer_via_lsp(
9220 lsp_location.uri.clone(),
9221 server_id,
9222 language_server_name,
9223 cx,
9224 )
9225 })
9226 })
9227 })?;
9228 let location = match location_task {
9229 Some(task) => Some({
9230 let target_buffer_handle = task.await.context("open local buffer")?;
9231 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9232 let target_start = target_buffer
9233 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9234 let target_end = target_buffer
9235 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9236 target_buffer.anchor_after(target_start)
9237 ..target_buffer.anchor_before(target_end)
9238 })?;
9239 Location {
9240 buffer: target_buffer_handle,
9241 range,
9242 }
9243 }),
9244 None => None,
9245 };
9246 Ok(location)
9247 })
9248 }
9249
9250 pub fn find_all_references(
9251 &mut self,
9252 _: &FindAllReferences,
9253 cx: &mut ViewContext<Self>,
9254 ) -> Option<Task<Result<()>>> {
9255 let multi_buffer = self.buffer.read(cx);
9256 let selection = self.selections.newest::<usize>(cx);
9257 let head = selection.head();
9258
9259 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9260 let head_anchor = multi_buffer_snapshot.anchor_at(
9261 head,
9262 if head < selection.tail() {
9263 Bias::Right
9264 } else {
9265 Bias::Left
9266 },
9267 );
9268
9269 match self
9270 .find_all_references_task_sources
9271 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9272 {
9273 Ok(_) => {
9274 log::info!(
9275 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9276 );
9277 return None;
9278 }
9279 Err(i) => {
9280 self.find_all_references_task_sources.insert(i, head_anchor);
9281 }
9282 }
9283
9284 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9285 let replica_id = self.replica_id(cx);
9286 let workspace = self.workspace()?;
9287 let project = workspace.read(cx).project().clone();
9288 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9289 Some(cx.spawn(|editor, mut cx| async move {
9290 let _cleanup = defer({
9291 let mut cx = cx.clone();
9292 move || {
9293 let _ = editor.update(&mut cx, |editor, _| {
9294 if let Ok(i) =
9295 editor
9296 .find_all_references_task_sources
9297 .binary_search_by(|anchor| {
9298 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9299 })
9300 {
9301 editor.find_all_references_task_sources.remove(i);
9302 }
9303 });
9304 }
9305 });
9306
9307 let locations = references.await?;
9308 if locations.is_empty() {
9309 return anyhow::Ok(());
9310 }
9311
9312 workspace.update(&mut cx, |workspace, cx| {
9313 let title = locations
9314 .first()
9315 .as_ref()
9316 .map(|location| {
9317 let buffer = location.buffer.read(cx);
9318 format!(
9319 "References to `{}`",
9320 buffer
9321 .text_for_range(location.range.clone())
9322 .collect::<String>()
9323 )
9324 })
9325 .unwrap();
9326 Self::open_locations_in_multibuffer(
9327 workspace, locations, replica_id, title, false, cx,
9328 );
9329 })
9330 }))
9331 }
9332
9333 /// Opens a multibuffer with the given project locations in it
9334 pub fn open_locations_in_multibuffer(
9335 workspace: &mut Workspace,
9336 mut locations: Vec<Location>,
9337 replica_id: ReplicaId,
9338 title: String,
9339 split: bool,
9340 cx: &mut ViewContext<Workspace>,
9341 ) {
9342 // If there are multiple definitions, open them in a multibuffer
9343 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9344 let mut locations = locations.into_iter().peekable();
9345 let mut ranges_to_highlight = Vec::new();
9346 let capability = workspace.project().read(cx).capability();
9347
9348 let excerpt_buffer = cx.new_model(|cx| {
9349 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9350 while let Some(location) = locations.next() {
9351 let buffer = location.buffer.read(cx);
9352 let mut ranges_for_buffer = Vec::new();
9353 let range = location.range.to_offset(buffer);
9354 ranges_for_buffer.push(range.clone());
9355
9356 while let Some(next_location) = locations.peek() {
9357 if next_location.buffer == location.buffer {
9358 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9359 locations.next();
9360 } else {
9361 break;
9362 }
9363 }
9364
9365 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9366 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9367 location.buffer.clone(),
9368 ranges_for_buffer,
9369 DEFAULT_MULTIBUFFER_CONTEXT,
9370 cx,
9371 ))
9372 }
9373
9374 multibuffer.with_title(title)
9375 });
9376
9377 let editor = cx.new_view(|cx| {
9378 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9379 });
9380 editor.update(cx, |editor, cx| {
9381 if let Some(first_range) = ranges_to_highlight.first() {
9382 editor.change_selections(None, cx, |selections| {
9383 selections.clear_disjoint();
9384 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9385 });
9386 }
9387 editor.highlight_background::<Self>(
9388 &ranges_to_highlight,
9389 |theme| theme.editor_highlighted_line_background,
9390 cx,
9391 );
9392 });
9393
9394 let item = Box::new(editor);
9395 let item_id = item.item_id();
9396
9397 if split {
9398 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9399 } else {
9400 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9401 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9402 pane.close_current_preview_item(cx)
9403 } else {
9404 None
9405 }
9406 });
9407 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9408 }
9409 workspace.active_pane().update(cx, |pane, cx| {
9410 pane.set_preview_item_id(Some(item_id), cx);
9411 });
9412 }
9413
9414 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9415 use language::ToOffset as _;
9416
9417 let project = self.project.clone()?;
9418 let selection = self.selections.newest_anchor().clone();
9419 let (cursor_buffer, cursor_buffer_position) = self
9420 .buffer
9421 .read(cx)
9422 .text_anchor_for_position(selection.head(), cx)?;
9423 let (tail_buffer, cursor_buffer_position_end) = self
9424 .buffer
9425 .read(cx)
9426 .text_anchor_for_position(selection.tail(), cx)?;
9427 if tail_buffer != cursor_buffer {
9428 return None;
9429 }
9430
9431 let snapshot = cursor_buffer.read(cx).snapshot();
9432 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9433 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9434 let prepare_rename = project.update(cx, |project, cx| {
9435 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9436 });
9437 drop(snapshot);
9438
9439 Some(cx.spawn(|this, mut cx| async move {
9440 let rename_range = if let Some(range) = prepare_rename.await? {
9441 Some(range)
9442 } else {
9443 this.update(&mut cx, |this, cx| {
9444 let buffer = this.buffer.read(cx).snapshot(cx);
9445 let mut buffer_highlights = this
9446 .document_highlights_for_position(selection.head(), &buffer)
9447 .filter(|highlight| {
9448 highlight.start.excerpt_id == selection.head().excerpt_id
9449 && highlight.end.excerpt_id == selection.head().excerpt_id
9450 });
9451 buffer_highlights
9452 .next()
9453 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9454 })?
9455 };
9456 if let Some(rename_range) = rename_range {
9457 this.update(&mut cx, |this, cx| {
9458 let snapshot = cursor_buffer.read(cx).snapshot();
9459 let rename_buffer_range = rename_range.to_offset(&snapshot);
9460 let cursor_offset_in_rename_range =
9461 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9462 let cursor_offset_in_rename_range_end =
9463 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9464
9465 this.take_rename(false, cx);
9466 let buffer = this.buffer.read(cx).read(cx);
9467 let cursor_offset = selection.head().to_offset(&buffer);
9468 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9469 let rename_end = rename_start + rename_buffer_range.len();
9470 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9471 let mut old_highlight_id = None;
9472 let old_name: Arc<str> = buffer
9473 .chunks(rename_start..rename_end, true)
9474 .map(|chunk| {
9475 if old_highlight_id.is_none() {
9476 old_highlight_id = chunk.syntax_highlight_id;
9477 }
9478 chunk.text
9479 })
9480 .collect::<String>()
9481 .into();
9482
9483 drop(buffer);
9484
9485 // Position the selection in the rename editor so that it matches the current selection.
9486 this.show_local_selections = false;
9487 let rename_editor = cx.new_view(|cx| {
9488 let mut editor = Editor::single_line(cx);
9489 editor.buffer.update(cx, |buffer, cx| {
9490 buffer.edit([(0..0, old_name.clone())], None, cx)
9491 });
9492 let rename_selection_range = match cursor_offset_in_rename_range
9493 .cmp(&cursor_offset_in_rename_range_end)
9494 {
9495 Ordering::Equal => {
9496 editor.select_all(&SelectAll, cx);
9497 return editor;
9498 }
9499 Ordering::Less => {
9500 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9501 }
9502 Ordering::Greater => {
9503 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9504 }
9505 };
9506 if rename_selection_range.end > old_name.len() {
9507 editor.select_all(&SelectAll, cx);
9508 } else {
9509 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9510 s.select_ranges([rename_selection_range]);
9511 });
9512 }
9513 editor
9514 });
9515 cx.subscribe(&rename_editor, |_, _, e, cx| match e {
9516 EditorEvent::Focused => cx.emit(EditorEvent::FocusedIn),
9517 _ => {}
9518 })
9519 .detach();
9520
9521 let write_highlights =
9522 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9523 let read_highlights =
9524 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9525 let ranges = write_highlights
9526 .iter()
9527 .flat_map(|(_, ranges)| ranges.iter())
9528 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9529 .cloned()
9530 .collect();
9531
9532 this.highlight_text::<Rename>(
9533 ranges,
9534 HighlightStyle {
9535 fade_out: Some(0.6),
9536 ..Default::default()
9537 },
9538 cx,
9539 );
9540 let rename_focus_handle = rename_editor.focus_handle(cx);
9541 cx.focus(&rename_focus_handle);
9542 let block_id = this.insert_blocks(
9543 [BlockProperties {
9544 style: BlockStyle::Flex,
9545 position: range.start,
9546 height: 1,
9547 render: Box::new({
9548 let rename_editor = rename_editor.clone();
9549 move |cx: &mut BlockContext| {
9550 let mut text_style = cx.editor_style.text.clone();
9551 if let Some(highlight_style) = old_highlight_id
9552 .and_then(|h| h.style(&cx.editor_style.syntax))
9553 {
9554 text_style = text_style.highlight(highlight_style);
9555 }
9556 div()
9557 .pl(cx.anchor_x)
9558 .child(EditorElement::new(
9559 &rename_editor,
9560 EditorStyle {
9561 background: cx.theme().system().transparent,
9562 local_player: cx.editor_style.local_player,
9563 text: text_style,
9564 scrollbar_width: cx.editor_style.scrollbar_width,
9565 syntax: cx.editor_style.syntax.clone(),
9566 status: cx.editor_style.status.clone(),
9567 inlay_hints_style: HighlightStyle {
9568 color: Some(cx.theme().status().hint),
9569 font_weight: Some(FontWeight::BOLD),
9570 ..HighlightStyle::default()
9571 },
9572 suggestions_style: HighlightStyle {
9573 color: Some(cx.theme().status().predictive),
9574 ..HighlightStyle::default()
9575 },
9576 },
9577 ))
9578 .into_any_element()
9579 }
9580 }),
9581 disposition: BlockDisposition::Below,
9582 }],
9583 Some(Autoscroll::fit()),
9584 cx,
9585 )[0];
9586 this.pending_rename = Some(RenameState {
9587 range,
9588 old_name,
9589 editor: rename_editor,
9590 block_id,
9591 });
9592 })?;
9593 }
9594
9595 Ok(())
9596 }))
9597 }
9598
9599 pub fn confirm_rename(
9600 &mut self,
9601 _: &ConfirmRename,
9602 cx: &mut ViewContext<Self>,
9603 ) -> Option<Task<Result<()>>> {
9604 let rename = self.take_rename(false, cx)?;
9605 let workspace = self.workspace()?;
9606 let (start_buffer, start) = self
9607 .buffer
9608 .read(cx)
9609 .text_anchor_for_position(rename.range.start, cx)?;
9610 let (end_buffer, end) = self
9611 .buffer
9612 .read(cx)
9613 .text_anchor_for_position(rename.range.end, cx)?;
9614 if start_buffer != end_buffer {
9615 return None;
9616 }
9617
9618 let buffer = start_buffer;
9619 let range = start..end;
9620 let old_name = rename.old_name;
9621 let new_name = rename.editor.read(cx).text(cx);
9622
9623 let rename = workspace
9624 .read(cx)
9625 .project()
9626 .clone()
9627 .update(cx, |project, cx| {
9628 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9629 });
9630 let workspace = workspace.downgrade();
9631
9632 Some(cx.spawn(|editor, mut cx| async move {
9633 let project_transaction = rename.await?;
9634 Self::open_project_transaction(
9635 &editor,
9636 workspace,
9637 project_transaction,
9638 format!("Rename: {} → {}", old_name, new_name),
9639 cx.clone(),
9640 )
9641 .await?;
9642
9643 editor.update(&mut cx, |editor, cx| {
9644 editor.refresh_document_highlights(cx);
9645 })?;
9646 Ok(())
9647 }))
9648 }
9649
9650 fn take_rename(
9651 &mut self,
9652 moving_cursor: bool,
9653 cx: &mut ViewContext<Self>,
9654 ) -> Option<RenameState> {
9655 let rename = self.pending_rename.take()?;
9656 if rename.editor.focus_handle(cx).is_focused(cx) {
9657 cx.focus(&self.focus_handle);
9658 }
9659
9660 self.remove_blocks(
9661 [rename.block_id].into_iter().collect(),
9662 Some(Autoscroll::fit()),
9663 cx,
9664 );
9665 self.clear_highlights::<Rename>(cx);
9666 self.show_local_selections = true;
9667
9668 if moving_cursor {
9669 let rename_editor = rename.editor.read(cx);
9670 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9671
9672 // Update the selection to match the position of the selection inside
9673 // the rename editor.
9674 let snapshot = self.buffer.read(cx).read(cx);
9675 let rename_range = rename.range.to_offset(&snapshot);
9676 let cursor_in_editor = snapshot
9677 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9678 .min(rename_range.end);
9679 drop(snapshot);
9680
9681 self.change_selections(None, cx, |s| {
9682 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9683 });
9684 } else {
9685 self.refresh_document_highlights(cx);
9686 }
9687
9688 Some(rename)
9689 }
9690
9691 pub fn pending_rename(&self) -> Option<&RenameState> {
9692 self.pending_rename.as_ref()
9693 }
9694
9695 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9696 let project = match &self.project {
9697 Some(project) => project.clone(),
9698 None => return None,
9699 };
9700
9701 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9702 }
9703
9704 fn perform_format(
9705 &mut self,
9706 project: Model<Project>,
9707 trigger: FormatTrigger,
9708 cx: &mut ViewContext<Self>,
9709 ) -> Task<Result<()>> {
9710 let buffer = self.buffer().clone();
9711 let mut buffers = buffer.read(cx).all_buffers();
9712 if trigger == FormatTrigger::Save {
9713 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9714 }
9715
9716 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9717 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9718
9719 cx.spawn(|_, mut cx| async move {
9720 let transaction = futures::select_biased! {
9721 () = timeout => {
9722 log::warn!("timed out waiting for formatting");
9723 None
9724 }
9725 transaction = format.log_err().fuse() => transaction,
9726 };
9727
9728 buffer
9729 .update(&mut cx, |buffer, cx| {
9730 if let Some(transaction) = transaction {
9731 if !buffer.is_singleton() {
9732 buffer.push_transaction(&transaction.0, cx);
9733 }
9734 }
9735
9736 cx.notify();
9737 })
9738 .ok();
9739
9740 Ok(())
9741 })
9742 }
9743
9744 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9745 if let Some(project) = self.project.clone() {
9746 self.buffer.update(cx, |multi_buffer, cx| {
9747 project.update(cx, |project, cx| {
9748 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9749 });
9750 })
9751 }
9752 }
9753
9754 fn cancel_language_server_work(
9755 &mut self,
9756 _: &CancelLanguageServerWork,
9757 cx: &mut ViewContext<Self>,
9758 ) {
9759 if let Some(project) = self.project.clone() {
9760 self.buffer.update(cx, |multi_buffer, cx| {
9761 project.update(cx, |project, cx| {
9762 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
9763 });
9764 })
9765 }
9766 }
9767
9768 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9769 cx.show_character_palette();
9770 }
9771
9772 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9773 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9774 let buffer = self.buffer.read(cx).snapshot(cx);
9775 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9776 let is_valid = buffer
9777 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9778 .any(|entry| {
9779 entry.diagnostic.is_primary
9780 && !entry.range.is_empty()
9781 && entry.range.start == primary_range_start
9782 && entry.diagnostic.message == active_diagnostics.primary_message
9783 });
9784
9785 if is_valid != active_diagnostics.is_valid {
9786 active_diagnostics.is_valid = is_valid;
9787 let mut new_styles = HashMap::default();
9788 for (block_id, diagnostic) in &active_diagnostics.blocks {
9789 new_styles.insert(
9790 *block_id,
9791 (
9792 None,
9793 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
9794 ),
9795 );
9796 }
9797 self.display_map.update(cx, |display_map, cx| {
9798 display_map.replace_blocks(new_styles, cx)
9799 });
9800 }
9801 }
9802 }
9803
9804 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9805 self.dismiss_diagnostics(cx);
9806 let snapshot = self.snapshot(cx);
9807 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9808 let buffer = self.buffer.read(cx).snapshot(cx);
9809
9810 let mut primary_range = None;
9811 let mut primary_message = None;
9812 let mut group_end = Point::zero();
9813 let diagnostic_group = buffer
9814 .diagnostic_group::<MultiBufferPoint>(group_id)
9815 .filter_map(|entry| {
9816 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9817 && (entry.range.start.row == entry.range.end.row
9818 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9819 {
9820 return None;
9821 }
9822 if entry.range.end > group_end {
9823 group_end = entry.range.end;
9824 }
9825 if entry.diagnostic.is_primary {
9826 primary_range = Some(entry.range.clone());
9827 primary_message = Some(entry.diagnostic.message.clone());
9828 }
9829 Some(entry)
9830 })
9831 .collect::<Vec<_>>();
9832 let primary_range = primary_range?;
9833 let primary_message = primary_message?;
9834 let primary_range =
9835 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9836
9837 let blocks = display_map
9838 .insert_blocks(
9839 diagnostic_group.iter().map(|entry| {
9840 let diagnostic = entry.diagnostic.clone();
9841 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9842 BlockProperties {
9843 style: BlockStyle::Fixed,
9844 position: buffer.anchor_after(entry.range.start),
9845 height: message_height,
9846 render: diagnostic_block_renderer(diagnostic, None, true, true),
9847 disposition: BlockDisposition::Below,
9848 }
9849 }),
9850 cx,
9851 )
9852 .into_iter()
9853 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9854 .collect();
9855
9856 Some(ActiveDiagnosticGroup {
9857 primary_range,
9858 primary_message,
9859 group_id,
9860 blocks,
9861 is_valid: true,
9862 })
9863 });
9864 self.active_diagnostics.is_some()
9865 }
9866
9867 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9868 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9869 self.display_map.update(cx, |display_map, cx| {
9870 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9871 });
9872 cx.notify();
9873 }
9874 }
9875
9876 pub fn set_selections_from_remote(
9877 &mut self,
9878 selections: Vec<Selection<Anchor>>,
9879 pending_selection: Option<Selection<Anchor>>,
9880 cx: &mut ViewContext<Self>,
9881 ) {
9882 let old_cursor_position = self.selections.newest_anchor().head();
9883 self.selections.change_with(cx, |s| {
9884 s.select_anchors(selections);
9885 if let Some(pending_selection) = pending_selection {
9886 s.set_pending(pending_selection, SelectMode::Character);
9887 } else {
9888 s.clear_pending();
9889 }
9890 });
9891 self.selections_did_change(false, &old_cursor_position, true, cx);
9892 }
9893
9894 fn push_to_selection_history(&mut self) {
9895 self.selection_history.push(SelectionHistoryEntry {
9896 selections: self.selections.disjoint_anchors(),
9897 select_next_state: self.select_next_state.clone(),
9898 select_prev_state: self.select_prev_state.clone(),
9899 add_selections_state: self.add_selections_state.clone(),
9900 });
9901 }
9902
9903 pub fn transact(
9904 &mut self,
9905 cx: &mut ViewContext<Self>,
9906 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9907 ) -> Option<TransactionId> {
9908 self.start_transaction_at(Instant::now(), cx);
9909 update(self, cx);
9910 self.end_transaction_at(Instant::now(), cx)
9911 }
9912
9913 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9914 self.end_selection(cx);
9915 if let Some(tx_id) = self
9916 .buffer
9917 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9918 {
9919 self.selection_history
9920 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9921 cx.emit(EditorEvent::TransactionBegun {
9922 transaction_id: tx_id,
9923 })
9924 }
9925 }
9926
9927 fn end_transaction_at(
9928 &mut self,
9929 now: Instant,
9930 cx: &mut ViewContext<Self>,
9931 ) -> Option<TransactionId> {
9932 if let Some(transaction_id) = self
9933 .buffer
9934 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9935 {
9936 if let Some((_, end_selections)) =
9937 self.selection_history.transaction_mut(transaction_id)
9938 {
9939 *end_selections = Some(self.selections.disjoint_anchors());
9940 } else {
9941 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9942 }
9943
9944 cx.emit(EditorEvent::Edited { transaction_id });
9945 Some(transaction_id)
9946 } else {
9947 None
9948 }
9949 }
9950
9951 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9952 let mut fold_ranges = Vec::new();
9953
9954 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9955
9956 let selections = self.selections.all_adjusted(cx);
9957 for selection in selections {
9958 let range = selection.range().sorted();
9959 let buffer_start_row = range.start.row;
9960
9961 for row in (0..=range.end.row).rev() {
9962 if let Some((foldable_range, fold_text)) =
9963 display_map.foldable_range(MultiBufferRow(row))
9964 {
9965 if foldable_range.end.row >= buffer_start_row {
9966 fold_ranges.push((foldable_range, fold_text));
9967 if row <= range.start.row {
9968 break;
9969 }
9970 }
9971 }
9972 }
9973 }
9974
9975 self.fold_ranges(fold_ranges, true, cx);
9976 }
9977
9978 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9979 let buffer_row = fold_at.buffer_row;
9980 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9981
9982 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9983 let autoscroll = self
9984 .selections
9985 .all::<Point>(cx)
9986 .iter()
9987 .any(|selection| fold_range.overlaps(&selection.range()));
9988
9989 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9990 }
9991 }
9992
9993 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9994 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9995 let buffer = &display_map.buffer_snapshot;
9996 let selections = self.selections.all::<Point>(cx);
9997 let ranges = selections
9998 .iter()
9999 .map(|s| {
10000 let range = s.display_range(&display_map).sorted();
10001 let mut start = range.start.to_point(&display_map);
10002 let mut end = range.end.to_point(&display_map);
10003 start.column = 0;
10004 end.column = buffer.line_len(MultiBufferRow(end.row));
10005 start..end
10006 })
10007 .collect::<Vec<_>>();
10008
10009 self.unfold_ranges(ranges, true, true, cx);
10010 }
10011
10012 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10013 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10014
10015 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10016 ..Point::new(
10017 unfold_at.buffer_row.0,
10018 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10019 );
10020
10021 let autoscroll = self
10022 .selections
10023 .all::<Point>(cx)
10024 .iter()
10025 .any(|selection| selection.range().overlaps(&intersection_range));
10026
10027 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10028 }
10029
10030 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10031 let selections = self.selections.all::<Point>(cx);
10032 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10033 let line_mode = self.selections.line_mode;
10034 let ranges = selections.into_iter().map(|s| {
10035 if line_mode {
10036 let start = Point::new(s.start.row, 0);
10037 let end = Point::new(
10038 s.end.row,
10039 display_map
10040 .buffer_snapshot
10041 .line_len(MultiBufferRow(s.end.row)),
10042 );
10043 (start..end, display_map.fold_placeholder.clone())
10044 } else {
10045 (s.start..s.end, display_map.fold_placeholder.clone())
10046 }
10047 });
10048 self.fold_ranges(ranges, true, cx);
10049 }
10050
10051 pub fn fold_ranges<T: ToOffset + Clone>(
10052 &mut self,
10053 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10054 auto_scroll: bool,
10055 cx: &mut ViewContext<Self>,
10056 ) {
10057 let mut fold_ranges = Vec::new();
10058 let mut buffers_affected = HashMap::default();
10059 let multi_buffer = self.buffer().read(cx);
10060 for (fold_range, fold_text) in ranges {
10061 if let Some((_, buffer, _)) =
10062 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10063 {
10064 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10065 };
10066 fold_ranges.push((fold_range, fold_text));
10067 }
10068
10069 let mut ranges = fold_ranges.into_iter().peekable();
10070 if ranges.peek().is_some() {
10071 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10072
10073 if auto_scroll {
10074 self.request_autoscroll(Autoscroll::fit(), cx);
10075 }
10076
10077 for buffer in buffers_affected.into_values() {
10078 self.sync_expanded_diff_hunks(buffer, cx);
10079 }
10080
10081 cx.notify();
10082
10083 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10084 // Clear diagnostics block when folding a range that contains it.
10085 let snapshot = self.snapshot(cx);
10086 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10087 drop(snapshot);
10088 self.active_diagnostics = Some(active_diagnostics);
10089 self.dismiss_diagnostics(cx);
10090 } else {
10091 self.active_diagnostics = Some(active_diagnostics);
10092 }
10093 }
10094
10095 self.scrollbar_marker_state.dirty = true;
10096 }
10097 }
10098
10099 pub fn unfold_ranges<T: ToOffset + Clone>(
10100 &mut self,
10101 ranges: impl IntoIterator<Item = Range<T>>,
10102 inclusive: bool,
10103 auto_scroll: bool,
10104 cx: &mut ViewContext<Self>,
10105 ) {
10106 let mut unfold_ranges = Vec::new();
10107 let mut buffers_affected = HashMap::default();
10108 let multi_buffer = self.buffer().read(cx);
10109 for range in ranges {
10110 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10111 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10112 };
10113 unfold_ranges.push(range);
10114 }
10115
10116 let mut ranges = unfold_ranges.into_iter().peekable();
10117 if ranges.peek().is_some() {
10118 self.display_map
10119 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10120 if auto_scroll {
10121 self.request_autoscroll(Autoscroll::fit(), cx);
10122 }
10123
10124 for buffer in buffers_affected.into_values() {
10125 self.sync_expanded_diff_hunks(buffer, cx);
10126 }
10127
10128 cx.notify();
10129 self.scrollbar_marker_state.dirty = true;
10130 self.active_indent_guides_state.dirty = true;
10131 }
10132 }
10133
10134 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10135 if hovered != self.gutter_hovered {
10136 self.gutter_hovered = hovered;
10137 cx.notify();
10138 }
10139 }
10140
10141 pub fn insert_blocks(
10142 &mut self,
10143 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10144 autoscroll: Option<Autoscroll>,
10145 cx: &mut ViewContext<Self>,
10146 ) -> Vec<BlockId> {
10147 let blocks = self
10148 .display_map
10149 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10150 if let Some(autoscroll) = autoscroll {
10151 self.request_autoscroll(autoscroll, cx);
10152 }
10153 blocks
10154 }
10155
10156 pub fn replace_blocks(
10157 &mut self,
10158 blocks: HashMap<BlockId, (Option<u8>, RenderBlock)>,
10159 autoscroll: Option<Autoscroll>,
10160 cx: &mut ViewContext<Self>,
10161 ) {
10162 self.display_map
10163 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
10164 if let Some(autoscroll) = autoscroll {
10165 self.request_autoscroll(autoscroll, cx);
10166 }
10167 }
10168
10169 pub fn remove_blocks(
10170 &mut self,
10171 block_ids: HashSet<BlockId>,
10172 autoscroll: Option<Autoscroll>,
10173 cx: &mut ViewContext<Self>,
10174 ) {
10175 self.display_map.update(cx, |display_map, cx| {
10176 display_map.remove_blocks(block_ids, cx)
10177 });
10178 if let Some(autoscroll) = autoscroll {
10179 self.request_autoscroll(autoscroll, cx);
10180 }
10181 }
10182
10183 pub fn row_for_block(
10184 &self,
10185 block_id: BlockId,
10186 cx: &mut ViewContext<Self>,
10187 ) -> Option<DisplayRow> {
10188 self.display_map
10189 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10190 }
10191
10192 pub fn insert_creases(
10193 &mut self,
10194 creases: impl IntoIterator<Item = Crease>,
10195 cx: &mut ViewContext<Self>,
10196 ) -> Vec<CreaseId> {
10197 self.display_map
10198 .update(cx, |map, cx| map.insert_creases(creases, cx))
10199 }
10200
10201 pub fn remove_creases(
10202 &mut self,
10203 ids: impl IntoIterator<Item = CreaseId>,
10204 cx: &mut ViewContext<Self>,
10205 ) {
10206 self.display_map
10207 .update(cx, |map, cx| map.remove_creases(ids, cx));
10208 }
10209
10210 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10211 self.display_map
10212 .update(cx, |map, cx| map.snapshot(cx))
10213 .longest_row()
10214 }
10215
10216 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10217 self.display_map
10218 .update(cx, |map, cx| map.snapshot(cx))
10219 .max_point()
10220 }
10221
10222 pub fn text(&self, cx: &AppContext) -> String {
10223 self.buffer.read(cx).read(cx).text()
10224 }
10225
10226 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10227 let text = self.text(cx);
10228 let text = text.trim();
10229
10230 if text.is_empty() {
10231 return None;
10232 }
10233
10234 Some(text.to_string())
10235 }
10236
10237 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10238 self.transact(cx, |this, cx| {
10239 this.buffer
10240 .read(cx)
10241 .as_singleton()
10242 .expect("you can only call set_text on editors for singleton buffers")
10243 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10244 });
10245 }
10246
10247 pub fn display_text(&self, cx: &mut AppContext) -> String {
10248 self.display_map
10249 .update(cx, |map, cx| map.snapshot(cx))
10250 .text()
10251 }
10252
10253 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10254 let mut wrap_guides = smallvec::smallvec![];
10255
10256 if self.show_wrap_guides == Some(false) {
10257 return wrap_guides;
10258 }
10259
10260 let settings = self.buffer.read(cx).settings_at(0, cx);
10261 if settings.show_wrap_guides {
10262 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10263 wrap_guides.push((soft_wrap as usize, true));
10264 }
10265 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10266 }
10267
10268 wrap_guides
10269 }
10270
10271 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10272 let settings = self.buffer.read(cx).settings_at(0, cx);
10273 let mode = self
10274 .soft_wrap_mode_override
10275 .unwrap_or_else(|| settings.soft_wrap);
10276 match mode {
10277 language_settings::SoftWrap::None => SoftWrap::None,
10278 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10279 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10280 language_settings::SoftWrap::PreferredLineLength => {
10281 SoftWrap::Column(settings.preferred_line_length)
10282 }
10283 }
10284 }
10285
10286 pub fn set_soft_wrap_mode(
10287 &mut self,
10288 mode: language_settings::SoftWrap,
10289 cx: &mut ViewContext<Self>,
10290 ) {
10291 self.soft_wrap_mode_override = Some(mode);
10292 cx.notify();
10293 }
10294
10295 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10296 let rem_size = cx.rem_size();
10297 self.display_map.update(cx, |map, cx| {
10298 map.set_font(
10299 style.text.font(),
10300 style.text.font_size.to_pixels(rem_size),
10301 cx,
10302 )
10303 });
10304 self.style = Some(style);
10305 }
10306
10307 pub fn style(&self) -> Option<&EditorStyle> {
10308 self.style.as_ref()
10309 }
10310
10311 // Called by the element. This method is not designed to be called outside of the editor
10312 // element's layout code because it does not notify when rewrapping is computed synchronously.
10313 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10314 self.display_map
10315 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10316 }
10317
10318 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10319 if self.soft_wrap_mode_override.is_some() {
10320 self.soft_wrap_mode_override.take();
10321 } else {
10322 let soft_wrap = match self.soft_wrap_mode(cx) {
10323 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10324 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
10325 language_settings::SoftWrap::PreferLine
10326 }
10327 };
10328 self.soft_wrap_mode_override = Some(soft_wrap);
10329 }
10330 cx.notify();
10331 }
10332
10333 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10334 let Some(workspace) = self.workspace() else {
10335 return;
10336 };
10337 let fs = workspace.read(cx).app_state().fs.clone();
10338 let current_show = TabBarSettings::get_global(cx).show;
10339 update_settings_file::<TabBarSettings>(fs, cx, move |setting| {
10340 setting.show = Some(!current_show);
10341 });
10342 }
10343
10344 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10345 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10346 self.buffer
10347 .read(cx)
10348 .settings_at(0, cx)
10349 .indent_guides
10350 .enabled
10351 });
10352 self.show_indent_guides = Some(!currently_enabled);
10353 cx.notify();
10354 }
10355
10356 fn should_show_indent_guides(&self) -> Option<bool> {
10357 self.show_indent_guides
10358 }
10359
10360 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10361 let mut editor_settings = EditorSettings::get_global(cx).clone();
10362 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10363 EditorSettings::override_global(editor_settings, cx);
10364 }
10365
10366 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10367 self.show_gutter = show_gutter;
10368 cx.notify();
10369 }
10370
10371 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10372 self.show_line_numbers = Some(show_line_numbers);
10373 cx.notify();
10374 }
10375
10376 pub fn set_show_git_diff_gutter(
10377 &mut self,
10378 show_git_diff_gutter: bool,
10379 cx: &mut ViewContext<Self>,
10380 ) {
10381 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10382 cx.notify();
10383 }
10384
10385 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10386 self.show_code_actions = Some(show_code_actions);
10387 cx.notify();
10388 }
10389
10390 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10391 self.show_runnables = Some(show_runnables);
10392 cx.notify();
10393 }
10394
10395 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10396 self.show_wrap_guides = Some(show_wrap_guides);
10397 cx.notify();
10398 }
10399
10400 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10401 self.show_indent_guides = Some(show_indent_guides);
10402 cx.notify();
10403 }
10404
10405 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10406 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10407 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10408 if let Some(dir) = file.abs_path(cx).parent() {
10409 return Some(dir.to_owned());
10410 }
10411 }
10412
10413 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10414 return Some(project_path.path.to_path_buf());
10415 }
10416 }
10417
10418 None
10419 }
10420
10421 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
10422 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10423 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10424 cx.reveal_path(&file.abs_path(cx));
10425 }
10426 }
10427 }
10428
10429 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10430 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10431 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10432 if let Some(path) = file.abs_path(cx).to_str() {
10433 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10434 }
10435 }
10436 }
10437 }
10438
10439 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10440 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10441 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10442 if let Some(path) = file.path().to_str() {
10443 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10444 }
10445 }
10446 }
10447 }
10448
10449 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10450 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10451
10452 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10453 self.start_git_blame(true, cx);
10454 }
10455
10456 cx.notify();
10457 }
10458
10459 pub fn toggle_git_blame_inline(
10460 &mut self,
10461 _: &ToggleGitBlameInline,
10462 cx: &mut ViewContext<Self>,
10463 ) {
10464 self.toggle_git_blame_inline_internal(true, cx);
10465 cx.notify();
10466 }
10467
10468 pub fn git_blame_inline_enabled(&self) -> bool {
10469 self.git_blame_inline_enabled
10470 }
10471
10472 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10473 self.show_selection_menu = self
10474 .show_selection_menu
10475 .map(|show_selections_menu| !show_selections_menu)
10476 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10477
10478 cx.notify();
10479 }
10480
10481 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10482 self.show_selection_menu
10483 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10484 }
10485
10486 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10487 if let Some(project) = self.project.as_ref() {
10488 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10489 return;
10490 };
10491
10492 if buffer.read(cx).file().is_none() {
10493 return;
10494 }
10495
10496 let focused = self.focus_handle(cx).contains_focused(cx);
10497
10498 let project = project.clone();
10499 let blame =
10500 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10501 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10502 self.blame = Some(blame);
10503 }
10504 }
10505
10506 fn toggle_git_blame_inline_internal(
10507 &mut self,
10508 user_triggered: bool,
10509 cx: &mut ViewContext<Self>,
10510 ) {
10511 if self.git_blame_inline_enabled {
10512 self.git_blame_inline_enabled = false;
10513 self.show_git_blame_inline = false;
10514 self.show_git_blame_inline_delay_task.take();
10515 } else {
10516 self.git_blame_inline_enabled = true;
10517 self.start_git_blame_inline(user_triggered, cx);
10518 }
10519
10520 cx.notify();
10521 }
10522
10523 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10524 self.start_git_blame(user_triggered, cx);
10525
10526 if ProjectSettings::get_global(cx)
10527 .git
10528 .inline_blame_delay()
10529 .is_some()
10530 {
10531 self.start_inline_blame_timer(cx);
10532 } else {
10533 self.show_git_blame_inline = true
10534 }
10535 }
10536
10537 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10538 self.blame.as_ref()
10539 }
10540
10541 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10542 self.show_git_blame_gutter && self.has_blame_entries(cx)
10543 }
10544
10545 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10546 self.show_git_blame_inline
10547 && self.focus_handle.is_focused(cx)
10548 && !self.newest_selection_head_on_empty_line(cx)
10549 && self.has_blame_entries(cx)
10550 }
10551
10552 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10553 self.blame()
10554 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10555 }
10556
10557 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10558 let cursor_anchor = self.selections.newest_anchor().head();
10559
10560 let snapshot = self.buffer.read(cx).snapshot(cx);
10561 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10562
10563 snapshot.line_len(buffer_row) == 0
10564 }
10565
10566 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10567 let (path, selection, repo) = maybe!({
10568 let project_handle = self.project.as_ref()?.clone();
10569 let project = project_handle.read(cx);
10570
10571 let selection = self.selections.newest::<Point>(cx);
10572 let selection_range = selection.range();
10573
10574 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10575 (buffer, selection_range.start.row..selection_range.end.row)
10576 } else {
10577 let buffer_ranges = self
10578 .buffer()
10579 .read(cx)
10580 .range_to_buffer_ranges(selection_range, cx);
10581
10582 let (buffer, range, _) = if selection.reversed {
10583 buffer_ranges.first()
10584 } else {
10585 buffer_ranges.last()
10586 }?;
10587
10588 let snapshot = buffer.read(cx).snapshot();
10589 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10590 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10591 (buffer.clone(), selection)
10592 };
10593
10594 let path = buffer
10595 .read(cx)
10596 .file()?
10597 .as_local()?
10598 .path()
10599 .to_str()?
10600 .to_string();
10601 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10602 Some((path, selection, repo))
10603 })
10604 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10605
10606 const REMOTE_NAME: &str = "origin";
10607 let origin_url = repo
10608 .remote_url(REMOTE_NAME)
10609 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10610 let sha = repo
10611 .head_sha()
10612 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10613
10614 let (provider, remote) =
10615 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10616 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10617
10618 Ok(provider.build_permalink(
10619 remote,
10620 BuildPermalinkParams {
10621 sha: &sha,
10622 path: &path,
10623 selection: Some(selection),
10624 },
10625 ))
10626 }
10627
10628 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10629 let permalink = self.get_permalink_to_line(cx);
10630
10631 match permalink {
10632 Ok(permalink) => {
10633 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10634 }
10635 Err(err) => {
10636 let message = format!("Failed to copy permalink: {err}");
10637
10638 Err::<(), anyhow::Error>(err).log_err();
10639
10640 if let Some(workspace) = self.workspace() {
10641 workspace.update(cx, |workspace, cx| {
10642 struct CopyPermalinkToLine;
10643
10644 workspace.show_toast(
10645 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10646 cx,
10647 )
10648 })
10649 }
10650 }
10651 }
10652 }
10653
10654 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10655 let permalink = self.get_permalink_to_line(cx);
10656
10657 match permalink {
10658 Ok(permalink) => {
10659 cx.open_url(permalink.as_ref());
10660 }
10661 Err(err) => {
10662 let message = format!("Failed to open permalink: {err}");
10663
10664 Err::<(), anyhow::Error>(err).log_err();
10665
10666 if let Some(workspace) = self.workspace() {
10667 workspace.update(cx, |workspace, cx| {
10668 struct OpenPermalinkToLine;
10669
10670 workspace.show_toast(
10671 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10672 cx,
10673 )
10674 })
10675 }
10676 }
10677 }
10678 }
10679
10680 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10681 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10682 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10683 pub fn highlight_rows<T: 'static>(
10684 &mut self,
10685 rows: RangeInclusive<Anchor>,
10686 color: Option<Hsla>,
10687 should_autoscroll: bool,
10688 cx: &mut ViewContext<Self>,
10689 ) {
10690 let snapshot = self.buffer().read(cx).snapshot(cx);
10691 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10692 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10693 highlight
10694 .range
10695 .start()
10696 .cmp(&rows.start(), &snapshot)
10697 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10698 });
10699 match (color, existing_highlight_index) {
10700 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10701 ix,
10702 RowHighlight {
10703 index: post_inc(&mut self.highlight_order),
10704 range: rows,
10705 should_autoscroll,
10706 color,
10707 },
10708 ),
10709 (None, Ok(i)) => {
10710 row_highlights.remove(i);
10711 }
10712 }
10713 }
10714
10715 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10716 pub fn clear_row_highlights<T: 'static>(&mut self) {
10717 self.highlighted_rows.remove(&TypeId::of::<T>());
10718 }
10719
10720 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10721 pub fn highlighted_rows<T: 'static>(
10722 &self,
10723 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10724 Some(
10725 self.highlighted_rows
10726 .get(&TypeId::of::<T>())?
10727 .iter()
10728 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10729 )
10730 }
10731
10732 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10733 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10734 /// Allows to ignore certain kinds of highlights.
10735 pub fn highlighted_display_rows(
10736 &mut self,
10737 cx: &mut WindowContext,
10738 ) -> BTreeMap<DisplayRow, Hsla> {
10739 let snapshot = self.snapshot(cx);
10740 let mut used_highlight_orders = HashMap::default();
10741 self.highlighted_rows
10742 .iter()
10743 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10744 .fold(
10745 BTreeMap::<DisplayRow, Hsla>::new(),
10746 |mut unique_rows, highlight| {
10747 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10748 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10749 for row in start_row.0..=end_row.0 {
10750 let used_index =
10751 used_highlight_orders.entry(row).or_insert(highlight.index);
10752 if highlight.index >= *used_index {
10753 *used_index = highlight.index;
10754 match highlight.color {
10755 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10756 None => unique_rows.remove(&DisplayRow(row)),
10757 };
10758 }
10759 }
10760 unique_rows
10761 },
10762 )
10763 }
10764
10765 pub fn highlighted_display_row_for_autoscroll(
10766 &self,
10767 snapshot: &DisplaySnapshot,
10768 ) -> Option<DisplayRow> {
10769 self.highlighted_rows
10770 .values()
10771 .flat_map(|highlighted_rows| highlighted_rows.iter())
10772 .filter_map(|highlight| {
10773 if highlight.color.is_none() || !highlight.should_autoscroll {
10774 return None;
10775 }
10776 Some(highlight.range.start().to_display_point(&snapshot).row())
10777 })
10778 .min()
10779 }
10780
10781 pub fn set_search_within_ranges(
10782 &mut self,
10783 ranges: &[Range<Anchor>],
10784 cx: &mut ViewContext<Self>,
10785 ) {
10786 self.highlight_background::<SearchWithinRange>(
10787 ranges,
10788 |colors| colors.editor_document_highlight_read_background,
10789 cx,
10790 )
10791 }
10792
10793 pub fn set_breadcrumb_header(&mut self, new_header: String) {
10794 self.breadcrumb_header = Some(new_header);
10795 }
10796
10797 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10798 self.clear_background_highlights::<SearchWithinRange>(cx);
10799 }
10800
10801 pub fn highlight_background<T: 'static>(
10802 &mut self,
10803 ranges: &[Range<Anchor>],
10804 color_fetcher: fn(&ThemeColors) -> Hsla,
10805 cx: &mut ViewContext<Self>,
10806 ) {
10807 let snapshot = self.snapshot(cx);
10808 // this is to try and catch a panic sooner
10809 for range in ranges {
10810 snapshot
10811 .buffer_snapshot
10812 .summary_for_anchor::<usize>(&range.start);
10813 snapshot
10814 .buffer_snapshot
10815 .summary_for_anchor::<usize>(&range.end);
10816 }
10817
10818 self.background_highlights
10819 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10820 self.scrollbar_marker_state.dirty = true;
10821 cx.notify();
10822 }
10823
10824 pub fn clear_background_highlights<T: 'static>(
10825 &mut self,
10826 cx: &mut ViewContext<Self>,
10827 ) -> Option<BackgroundHighlight> {
10828 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10829 if !text_highlights.1.is_empty() {
10830 self.scrollbar_marker_state.dirty = true;
10831 cx.notify();
10832 }
10833 Some(text_highlights)
10834 }
10835
10836 pub fn highlight_gutter<T: 'static>(
10837 &mut self,
10838 ranges: &[Range<Anchor>],
10839 color_fetcher: fn(&AppContext) -> Hsla,
10840 cx: &mut ViewContext<Self>,
10841 ) {
10842 self.gutter_highlights
10843 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10844 cx.notify();
10845 }
10846
10847 pub fn clear_gutter_highlights<T: 'static>(
10848 &mut self,
10849 cx: &mut ViewContext<Self>,
10850 ) -> Option<GutterHighlight> {
10851 cx.notify();
10852 self.gutter_highlights.remove(&TypeId::of::<T>())
10853 }
10854
10855 #[cfg(feature = "test-support")]
10856 pub fn all_text_background_highlights(
10857 &mut self,
10858 cx: &mut ViewContext<Self>,
10859 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10860 let snapshot = self.snapshot(cx);
10861 let buffer = &snapshot.buffer_snapshot;
10862 let start = buffer.anchor_before(0);
10863 let end = buffer.anchor_after(buffer.len());
10864 let theme = cx.theme().colors();
10865 self.background_highlights_in_range(start..end, &snapshot, theme)
10866 }
10867
10868 #[cfg(feature = "test-support")]
10869 pub fn search_background_highlights(
10870 &mut self,
10871 cx: &mut ViewContext<Self>,
10872 ) -> Vec<Range<Point>> {
10873 let snapshot = self.buffer().read(cx).snapshot(cx);
10874
10875 let highlights = self
10876 .background_highlights
10877 .get(&TypeId::of::<items::BufferSearchHighlights>());
10878
10879 if let Some((_color, ranges)) = highlights {
10880 ranges
10881 .iter()
10882 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10883 .collect_vec()
10884 } else {
10885 vec![]
10886 }
10887 }
10888
10889 fn document_highlights_for_position<'a>(
10890 &'a self,
10891 position: Anchor,
10892 buffer: &'a MultiBufferSnapshot,
10893 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10894 let read_highlights = self
10895 .background_highlights
10896 .get(&TypeId::of::<DocumentHighlightRead>())
10897 .map(|h| &h.1);
10898 let write_highlights = self
10899 .background_highlights
10900 .get(&TypeId::of::<DocumentHighlightWrite>())
10901 .map(|h| &h.1);
10902 let left_position = position.bias_left(buffer);
10903 let right_position = position.bias_right(buffer);
10904 read_highlights
10905 .into_iter()
10906 .chain(write_highlights)
10907 .flat_map(move |ranges| {
10908 let start_ix = match ranges.binary_search_by(|probe| {
10909 let cmp = probe.end.cmp(&left_position, buffer);
10910 if cmp.is_ge() {
10911 Ordering::Greater
10912 } else {
10913 Ordering::Less
10914 }
10915 }) {
10916 Ok(i) | Err(i) => i,
10917 };
10918
10919 ranges[start_ix..]
10920 .iter()
10921 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10922 })
10923 }
10924
10925 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10926 self.background_highlights
10927 .get(&TypeId::of::<T>())
10928 .map_or(false, |(_, highlights)| !highlights.is_empty())
10929 }
10930
10931 pub fn background_highlights_in_range(
10932 &self,
10933 search_range: Range<Anchor>,
10934 display_snapshot: &DisplaySnapshot,
10935 theme: &ThemeColors,
10936 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10937 let mut results = Vec::new();
10938 for (color_fetcher, ranges) in self.background_highlights.values() {
10939 let color = color_fetcher(theme);
10940 let start_ix = match ranges.binary_search_by(|probe| {
10941 let cmp = probe
10942 .end
10943 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10944 if cmp.is_gt() {
10945 Ordering::Greater
10946 } else {
10947 Ordering::Less
10948 }
10949 }) {
10950 Ok(i) | Err(i) => i,
10951 };
10952 for range in &ranges[start_ix..] {
10953 if range
10954 .start
10955 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10956 .is_ge()
10957 {
10958 break;
10959 }
10960
10961 let start = range.start.to_display_point(&display_snapshot);
10962 let end = range.end.to_display_point(&display_snapshot);
10963 results.push((start..end, color))
10964 }
10965 }
10966 results
10967 }
10968
10969 pub fn background_highlight_row_ranges<T: 'static>(
10970 &self,
10971 search_range: Range<Anchor>,
10972 display_snapshot: &DisplaySnapshot,
10973 count: usize,
10974 ) -> Vec<RangeInclusive<DisplayPoint>> {
10975 let mut results = Vec::new();
10976 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10977 return vec![];
10978 };
10979
10980 let start_ix = match ranges.binary_search_by(|probe| {
10981 let cmp = probe
10982 .end
10983 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10984 if cmp.is_gt() {
10985 Ordering::Greater
10986 } else {
10987 Ordering::Less
10988 }
10989 }) {
10990 Ok(i) | Err(i) => i,
10991 };
10992 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10993 if let (Some(start_display), Some(end_display)) = (start, end) {
10994 results.push(
10995 start_display.to_display_point(display_snapshot)
10996 ..=end_display.to_display_point(display_snapshot),
10997 );
10998 }
10999 };
11000 let mut start_row: Option<Point> = None;
11001 let mut end_row: Option<Point> = None;
11002 if ranges.len() > count {
11003 return Vec::new();
11004 }
11005 for range in &ranges[start_ix..] {
11006 if range
11007 .start
11008 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11009 .is_ge()
11010 {
11011 break;
11012 }
11013 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11014 if let Some(current_row) = &end_row {
11015 if end.row == current_row.row {
11016 continue;
11017 }
11018 }
11019 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11020 if start_row.is_none() {
11021 assert_eq!(end_row, None);
11022 start_row = Some(start);
11023 end_row = Some(end);
11024 continue;
11025 }
11026 if let Some(current_end) = end_row.as_mut() {
11027 if start.row > current_end.row + 1 {
11028 push_region(start_row, end_row);
11029 start_row = Some(start);
11030 end_row = Some(end);
11031 } else {
11032 // Merge two hunks.
11033 *current_end = end;
11034 }
11035 } else {
11036 unreachable!();
11037 }
11038 }
11039 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11040 push_region(start_row, end_row);
11041 results
11042 }
11043
11044 pub fn gutter_highlights_in_range(
11045 &self,
11046 search_range: Range<Anchor>,
11047 display_snapshot: &DisplaySnapshot,
11048 cx: &AppContext,
11049 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11050 let mut results = Vec::new();
11051 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11052 let color = color_fetcher(cx);
11053 let start_ix = match ranges.binary_search_by(|probe| {
11054 let cmp = probe
11055 .end
11056 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11057 if cmp.is_gt() {
11058 Ordering::Greater
11059 } else {
11060 Ordering::Less
11061 }
11062 }) {
11063 Ok(i) | Err(i) => i,
11064 };
11065 for range in &ranges[start_ix..] {
11066 if range
11067 .start
11068 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11069 .is_ge()
11070 {
11071 break;
11072 }
11073
11074 let start = range.start.to_display_point(&display_snapshot);
11075 let end = range.end.to_display_point(&display_snapshot);
11076 results.push((start..end, color))
11077 }
11078 }
11079 results
11080 }
11081
11082 /// Get the text ranges corresponding to the redaction query
11083 pub fn redacted_ranges(
11084 &self,
11085 search_range: Range<Anchor>,
11086 display_snapshot: &DisplaySnapshot,
11087 cx: &WindowContext,
11088 ) -> Vec<Range<DisplayPoint>> {
11089 display_snapshot
11090 .buffer_snapshot
11091 .redacted_ranges(search_range, |file| {
11092 if let Some(file) = file {
11093 file.is_private()
11094 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
11095 } else {
11096 false
11097 }
11098 })
11099 .map(|range| {
11100 range.start.to_display_point(display_snapshot)
11101 ..range.end.to_display_point(display_snapshot)
11102 })
11103 .collect()
11104 }
11105
11106 pub fn highlight_text<T: 'static>(
11107 &mut self,
11108 ranges: Vec<Range<Anchor>>,
11109 style: HighlightStyle,
11110 cx: &mut ViewContext<Self>,
11111 ) {
11112 self.display_map.update(cx, |map, _| {
11113 map.highlight_text(TypeId::of::<T>(), ranges, style)
11114 });
11115 cx.notify();
11116 }
11117
11118 pub(crate) fn highlight_inlays<T: 'static>(
11119 &mut self,
11120 highlights: Vec<InlayHighlight>,
11121 style: HighlightStyle,
11122 cx: &mut ViewContext<Self>,
11123 ) {
11124 self.display_map.update(cx, |map, _| {
11125 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11126 });
11127 cx.notify();
11128 }
11129
11130 pub fn text_highlights<'a, T: 'static>(
11131 &'a self,
11132 cx: &'a AppContext,
11133 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11134 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11135 }
11136
11137 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11138 let cleared = self
11139 .display_map
11140 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11141 if cleared {
11142 cx.notify();
11143 }
11144 }
11145
11146 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11147 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11148 && self.focus_handle.is_focused(cx)
11149 }
11150
11151 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11152 self.show_cursor_when_unfocused = is_enabled;
11153 cx.notify();
11154 }
11155
11156 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11157 cx.notify();
11158 }
11159
11160 fn on_buffer_event(
11161 &mut self,
11162 multibuffer: Model<MultiBuffer>,
11163 event: &multi_buffer::Event,
11164 cx: &mut ViewContext<Self>,
11165 ) {
11166 match event {
11167 multi_buffer::Event::Edited {
11168 singleton_buffer_edited,
11169 } => {
11170 self.scrollbar_marker_state.dirty = true;
11171 self.active_indent_guides_state.dirty = true;
11172 self.refresh_active_diagnostics(cx);
11173 self.refresh_code_actions(cx);
11174 if self.has_active_inline_completion(cx) {
11175 self.update_visible_inline_completion(cx);
11176 }
11177 cx.emit(EditorEvent::BufferEdited);
11178 cx.emit(SearchEvent::MatchesInvalidated);
11179 if *singleton_buffer_edited {
11180 if let Some(project) = &self.project {
11181 let project = project.read(cx);
11182 #[allow(clippy::mutable_key_type)]
11183 let languages_affected = multibuffer
11184 .read(cx)
11185 .all_buffers()
11186 .into_iter()
11187 .filter_map(|buffer| {
11188 let buffer = buffer.read(cx);
11189 let language = buffer.language()?;
11190 if project.is_local()
11191 && project.language_servers_for_buffer(buffer, cx).count() == 0
11192 {
11193 None
11194 } else {
11195 Some(language)
11196 }
11197 })
11198 .cloned()
11199 .collect::<HashSet<_>>();
11200 if !languages_affected.is_empty() {
11201 self.refresh_inlay_hints(
11202 InlayHintRefreshReason::BufferEdited(languages_affected),
11203 cx,
11204 );
11205 }
11206 }
11207 }
11208
11209 let Some(project) = &self.project else { return };
11210 let telemetry = project.read(cx).client().telemetry().clone();
11211 refresh_linked_ranges(self, cx);
11212 telemetry.log_edit_event("editor");
11213 }
11214 multi_buffer::Event::ExcerptsAdded {
11215 buffer,
11216 predecessor,
11217 excerpts,
11218 } => {
11219 self.tasks_update_task = Some(self.refresh_runnables(cx));
11220 cx.emit(EditorEvent::ExcerptsAdded {
11221 buffer: buffer.clone(),
11222 predecessor: *predecessor,
11223 excerpts: excerpts.clone(),
11224 });
11225 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11226 }
11227 multi_buffer::Event::ExcerptsRemoved { ids } => {
11228 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11229 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11230 }
11231 multi_buffer::Event::ExcerptsEdited { ids } => {
11232 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11233 }
11234 multi_buffer::Event::ExcerptsExpanded { ids } => {
11235 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11236 }
11237 multi_buffer::Event::Reparsed(buffer_id) => {
11238 self.tasks_update_task = Some(self.refresh_runnables(cx));
11239
11240 cx.emit(EditorEvent::Reparsed(*buffer_id));
11241 }
11242 multi_buffer::Event::LanguageChanged(buffer_id) => {
11243 linked_editing_ranges::refresh_linked_ranges(self, cx);
11244 cx.emit(EditorEvent::Reparsed(*buffer_id));
11245 cx.notify();
11246 }
11247 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11248 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11249 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11250 cx.emit(EditorEvent::TitleChanged)
11251 }
11252 multi_buffer::Event::DiffBaseChanged => {
11253 self.scrollbar_marker_state.dirty = true;
11254 cx.emit(EditorEvent::DiffBaseChanged);
11255 cx.notify();
11256 }
11257 multi_buffer::Event::DiffUpdated { buffer } => {
11258 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11259 cx.notify();
11260 }
11261 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11262 multi_buffer::Event::DiagnosticsUpdated => {
11263 self.refresh_active_diagnostics(cx);
11264 self.scrollbar_marker_state.dirty = true;
11265 cx.notify();
11266 }
11267 _ => {}
11268 };
11269 }
11270
11271 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11272 cx.notify();
11273 }
11274
11275 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11276 self.tasks_update_task = Some(self.refresh_runnables(cx));
11277 self.refresh_inline_completion(true, cx);
11278 self.refresh_inlay_hints(
11279 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11280 self.selections.newest_anchor().head(),
11281 &self.buffer.read(cx).snapshot(cx),
11282 cx,
11283 )),
11284 cx,
11285 );
11286 let editor_settings = EditorSettings::get_global(cx);
11287 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11288 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11289
11290 let project_settings = ProjectSettings::get_global(cx);
11291 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
11292
11293 if self.mode == EditorMode::Full {
11294 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
11295 if self.git_blame_inline_enabled != inline_blame_enabled {
11296 self.toggle_git_blame_inline_internal(false, cx);
11297 }
11298 }
11299
11300 cx.notify();
11301 }
11302
11303 pub fn set_searchable(&mut self, searchable: bool) {
11304 self.searchable = searchable;
11305 }
11306
11307 pub fn searchable(&self) -> bool {
11308 self.searchable
11309 }
11310
11311 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11312 self.open_excerpts_common(true, cx)
11313 }
11314
11315 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11316 self.open_excerpts_common(false, cx)
11317 }
11318
11319 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11320 let buffer = self.buffer.read(cx);
11321 if buffer.is_singleton() {
11322 cx.propagate();
11323 return;
11324 }
11325
11326 let Some(workspace) = self.workspace() else {
11327 cx.propagate();
11328 return;
11329 };
11330
11331 let mut new_selections_by_buffer = HashMap::default();
11332 for selection in self.selections.all::<usize>(cx) {
11333 for (buffer, mut range, _) in
11334 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11335 {
11336 if selection.reversed {
11337 mem::swap(&mut range.start, &mut range.end);
11338 }
11339 new_selections_by_buffer
11340 .entry(buffer)
11341 .or_insert(Vec::new())
11342 .push(range)
11343 }
11344 }
11345
11346 // We defer the pane interaction because we ourselves are a workspace item
11347 // and activating a new item causes the pane to call a method on us reentrantly,
11348 // which panics if we're on the stack.
11349 cx.window_context().defer(move |cx| {
11350 workspace.update(cx, |workspace, cx| {
11351 let pane = if split {
11352 workspace.adjacent_pane(cx)
11353 } else {
11354 workspace.active_pane().clone()
11355 };
11356
11357 for (buffer, ranges) in new_selections_by_buffer {
11358 let editor =
11359 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
11360 editor.update(cx, |editor, cx| {
11361 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11362 s.select_ranges(ranges);
11363 });
11364 });
11365 }
11366 })
11367 });
11368 }
11369
11370 fn jump(
11371 &mut self,
11372 path: ProjectPath,
11373 position: Point,
11374 anchor: language::Anchor,
11375 offset_from_top: u32,
11376 cx: &mut ViewContext<Self>,
11377 ) {
11378 let workspace = self.workspace();
11379 cx.spawn(|_, mut cx| async move {
11380 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11381 let editor = workspace.update(&mut cx, |workspace, cx| {
11382 // Reset the preview item id before opening the new item
11383 workspace.active_pane().update(cx, |pane, cx| {
11384 pane.set_preview_item_id(None, cx);
11385 });
11386 workspace.open_path_preview(path, None, true, true, cx)
11387 })?;
11388 let editor = editor
11389 .await?
11390 .downcast::<Editor>()
11391 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11392 .downgrade();
11393 editor.update(&mut cx, |editor, cx| {
11394 let buffer = editor
11395 .buffer()
11396 .read(cx)
11397 .as_singleton()
11398 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11399 let buffer = buffer.read(cx);
11400 let cursor = if buffer.can_resolve(&anchor) {
11401 language::ToPoint::to_point(&anchor, buffer)
11402 } else {
11403 buffer.clip_point(position, Bias::Left)
11404 };
11405
11406 let nav_history = editor.nav_history.take();
11407 editor.change_selections(
11408 Some(Autoscroll::top_relative(offset_from_top as usize)),
11409 cx,
11410 |s| {
11411 s.select_ranges([cursor..cursor]);
11412 },
11413 );
11414 editor.nav_history = nav_history;
11415
11416 anyhow::Ok(())
11417 })??;
11418
11419 anyhow::Ok(())
11420 })
11421 .detach_and_log_err(cx);
11422 }
11423
11424 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11425 let snapshot = self.buffer.read(cx).read(cx);
11426 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11427 Some(
11428 ranges
11429 .iter()
11430 .map(move |range| {
11431 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11432 })
11433 .collect(),
11434 )
11435 }
11436
11437 fn selection_replacement_ranges(
11438 &self,
11439 range: Range<OffsetUtf16>,
11440 cx: &AppContext,
11441 ) -> Vec<Range<OffsetUtf16>> {
11442 let selections = self.selections.all::<OffsetUtf16>(cx);
11443 let newest_selection = selections
11444 .iter()
11445 .max_by_key(|selection| selection.id)
11446 .unwrap();
11447 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11448 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11449 let snapshot = self.buffer.read(cx).read(cx);
11450 selections
11451 .into_iter()
11452 .map(|mut selection| {
11453 selection.start.0 =
11454 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11455 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11456 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11457 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11458 })
11459 .collect()
11460 }
11461
11462 fn report_editor_event(
11463 &self,
11464 operation: &'static str,
11465 file_extension: Option<String>,
11466 cx: &AppContext,
11467 ) {
11468 if cfg!(any(test, feature = "test-support")) {
11469 return;
11470 }
11471
11472 let Some(project) = &self.project else { return };
11473
11474 // If None, we are in a file without an extension
11475 let file = self
11476 .buffer
11477 .read(cx)
11478 .as_singleton()
11479 .and_then(|b| b.read(cx).file());
11480 let file_extension = file_extension.or(file
11481 .as_ref()
11482 .and_then(|file| Path::new(file.file_name(cx)).extension())
11483 .and_then(|e| e.to_str())
11484 .map(|a| a.to_string()));
11485
11486 let vim_mode = cx
11487 .global::<SettingsStore>()
11488 .raw_user_settings()
11489 .get("vim_mode")
11490 == Some(&serde_json::Value::Bool(true));
11491
11492 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11493 == language::language_settings::InlineCompletionProvider::Copilot;
11494 let copilot_enabled_for_language = self
11495 .buffer
11496 .read(cx)
11497 .settings_at(0, cx)
11498 .show_inline_completions;
11499
11500 let telemetry = project.read(cx).client().telemetry().clone();
11501 telemetry.report_editor_event(
11502 file_extension,
11503 vim_mode,
11504 operation,
11505 copilot_enabled,
11506 copilot_enabled_for_language,
11507 )
11508 }
11509
11510 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11511 /// with each line being an array of {text, highlight} objects.
11512 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11513 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11514 return;
11515 };
11516
11517 #[derive(Serialize)]
11518 struct Chunk<'a> {
11519 text: String,
11520 highlight: Option<&'a str>,
11521 }
11522
11523 let snapshot = buffer.read(cx).snapshot();
11524 let range = self
11525 .selected_text_range(cx)
11526 .and_then(|selected_range| {
11527 if selected_range.is_empty() {
11528 None
11529 } else {
11530 Some(selected_range)
11531 }
11532 })
11533 .unwrap_or_else(|| 0..snapshot.len());
11534
11535 let chunks = snapshot.chunks(range, true);
11536 let mut lines = Vec::new();
11537 let mut line: VecDeque<Chunk> = VecDeque::new();
11538
11539 let Some(style) = self.style.as_ref() else {
11540 return;
11541 };
11542
11543 for chunk in chunks {
11544 let highlight = chunk
11545 .syntax_highlight_id
11546 .and_then(|id| id.name(&style.syntax));
11547 let mut chunk_lines = chunk.text.split('\n').peekable();
11548 while let Some(text) = chunk_lines.next() {
11549 let mut merged_with_last_token = false;
11550 if let Some(last_token) = line.back_mut() {
11551 if last_token.highlight == highlight {
11552 last_token.text.push_str(text);
11553 merged_with_last_token = true;
11554 }
11555 }
11556
11557 if !merged_with_last_token {
11558 line.push_back(Chunk {
11559 text: text.into(),
11560 highlight,
11561 });
11562 }
11563
11564 if chunk_lines.peek().is_some() {
11565 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11566 line.pop_front();
11567 }
11568 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11569 line.pop_back();
11570 }
11571
11572 lines.push(mem::take(&mut line));
11573 }
11574 }
11575 }
11576
11577 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11578 return;
11579 };
11580 cx.write_to_clipboard(ClipboardItem::new(lines));
11581 }
11582
11583 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11584 &self.inlay_hint_cache
11585 }
11586
11587 pub fn replay_insert_event(
11588 &mut self,
11589 text: &str,
11590 relative_utf16_range: Option<Range<isize>>,
11591 cx: &mut ViewContext<Self>,
11592 ) {
11593 if !self.input_enabled {
11594 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11595 return;
11596 }
11597 if let Some(relative_utf16_range) = relative_utf16_range {
11598 let selections = self.selections.all::<OffsetUtf16>(cx);
11599 self.change_selections(None, cx, |s| {
11600 let new_ranges = selections.into_iter().map(|range| {
11601 let start = OffsetUtf16(
11602 range
11603 .head()
11604 .0
11605 .saturating_add_signed(relative_utf16_range.start),
11606 );
11607 let end = OffsetUtf16(
11608 range
11609 .head()
11610 .0
11611 .saturating_add_signed(relative_utf16_range.end),
11612 );
11613 start..end
11614 });
11615 s.select_ranges(new_ranges);
11616 });
11617 }
11618
11619 self.handle_input(text, cx);
11620 }
11621
11622 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11623 let Some(project) = self.project.as_ref() else {
11624 return false;
11625 };
11626 let project = project.read(cx);
11627
11628 let mut supports = false;
11629 self.buffer().read(cx).for_each_buffer(|buffer| {
11630 if !supports {
11631 supports = project
11632 .language_servers_for_buffer(buffer.read(cx), cx)
11633 .any(
11634 |(_, server)| match server.capabilities().inlay_hint_provider {
11635 Some(lsp::OneOf::Left(enabled)) => enabled,
11636 Some(lsp::OneOf::Right(_)) => true,
11637 None => false,
11638 },
11639 )
11640 }
11641 });
11642 supports
11643 }
11644
11645 pub fn focus(&self, cx: &mut WindowContext) {
11646 cx.focus(&self.focus_handle)
11647 }
11648
11649 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11650 self.focus_handle.is_focused(cx)
11651 }
11652
11653 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11654 cx.emit(EditorEvent::Focused);
11655
11656 if let Some(descendant) = self
11657 .last_focused_descendant
11658 .take()
11659 .and_then(|descendant| descendant.upgrade())
11660 {
11661 cx.focus(&descendant);
11662 } else {
11663 if let Some(blame) = self.blame.as_ref() {
11664 blame.update(cx, GitBlame::focus)
11665 }
11666
11667 self.blink_manager.update(cx, BlinkManager::enable);
11668 self.show_cursor_names(cx);
11669 self.buffer.update(cx, |buffer, cx| {
11670 buffer.finalize_last_transaction(cx);
11671 if self.leader_peer_id.is_none() {
11672 buffer.set_active_selections(
11673 &self.selections.disjoint_anchors(),
11674 self.selections.line_mode,
11675 self.cursor_shape,
11676 cx,
11677 );
11678 }
11679 });
11680 }
11681 }
11682
11683 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
11684 cx.emit(EditorEvent::FocusedIn)
11685 }
11686
11687 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
11688 if event.blurred != self.focus_handle {
11689 self.last_focused_descendant = Some(event.blurred);
11690 }
11691 }
11692
11693 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11694 self.blink_manager.update(cx, BlinkManager::disable);
11695 self.buffer
11696 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11697
11698 if let Some(blame) = self.blame.as_ref() {
11699 blame.update(cx, GitBlame::blur)
11700 }
11701 if !self.hover_state.focused(cx) {
11702 hide_hover(self, cx);
11703 }
11704
11705 self.hide_context_menu(cx);
11706 cx.emit(EditorEvent::Blurred);
11707 cx.notify();
11708 }
11709
11710 pub fn register_action<A: Action>(
11711 &mut self,
11712 listener: impl Fn(&A, &mut WindowContext) + 'static,
11713 ) -> Subscription {
11714 let id = self.next_editor_action_id.post_inc();
11715 let listener = Arc::new(listener);
11716 self.editor_actions.borrow_mut().insert(
11717 id,
11718 Box::new(move |cx| {
11719 let _view = cx.view().clone();
11720 let cx = cx.window_context();
11721 let listener = listener.clone();
11722 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11723 let action = action.downcast_ref().unwrap();
11724 if phase == DispatchPhase::Bubble {
11725 listener(action, cx)
11726 }
11727 })
11728 }),
11729 );
11730
11731 let editor_actions = self.editor_actions.clone();
11732 Subscription::new(move || {
11733 editor_actions.borrow_mut().remove(&id);
11734 })
11735 }
11736
11737 pub fn file_header_size(&self) -> u8 {
11738 self.file_header_size
11739 }
11740}
11741
11742fn hunks_for_selections(
11743 multi_buffer_snapshot: &MultiBufferSnapshot,
11744 selections: &[Selection<Anchor>],
11745) -> Vec<DiffHunk<MultiBufferRow>> {
11746 let mut hunks = Vec::with_capacity(selections.len());
11747 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11748 HashMap::default();
11749 let buffer_rows_for_selections = selections.iter().map(|selection| {
11750 let head = selection.head();
11751 let tail = selection.tail();
11752 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11753 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11754 if start > end {
11755 end..start
11756 } else {
11757 start..end
11758 }
11759 });
11760
11761 for selected_multi_buffer_rows in buffer_rows_for_selections {
11762 let query_rows =
11763 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11764 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11765 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11766 // when the caret is just above or just below the deleted hunk.
11767 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11768 let related_to_selection = if allow_adjacent {
11769 hunk.associated_range.overlaps(&query_rows)
11770 || hunk.associated_range.start == query_rows.end
11771 || hunk.associated_range.end == query_rows.start
11772 } else {
11773 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11774 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11775 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11776 || selected_multi_buffer_rows.end == hunk.associated_range.start
11777 };
11778 if related_to_selection {
11779 if !processed_buffer_rows
11780 .entry(hunk.buffer_id)
11781 .or_default()
11782 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11783 {
11784 continue;
11785 }
11786 hunks.push(hunk);
11787 }
11788 }
11789 }
11790
11791 hunks
11792}
11793
11794pub trait CollaborationHub {
11795 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11796 fn user_participant_indices<'a>(
11797 &self,
11798 cx: &'a AppContext,
11799 ) -> &'a HashMap<u64, ParticipantIndex>;
11800 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11801}
11802
11803impl CollaborationHub for Model<Project> {
11804 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11805 self.read(cx).collaborators()
11806 }
11807
11808 fn user_participant_indices<'a>(
11809 &self,
11810 cx: &'a AppContext,
11811 ) -> &'a HashMap<u64, ParticipantIndex> {
11812 self.read(cx).user_store().read(cx).participant_indices()
11813 }
11814
11815 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11816 let this = self.read(cx);
11817 let user_ids = this.collaborators().values().map(|c| c.user_id);
11818 this.user_store().read_with(cx, |user_store, cx| {
11819 user_store.participant_names(user_ids, cx)
11820 })
11821 }
11822}
11823
11824pub trait CompletionProvider {
11825 fn completions(
11826 &self,
11827 buffer: &Model<Buffer>,
11828 buffer_position: text::Anchor,
11829 trigger: CompletionContext,
11830 cx: &mut ViewContext<Editor>,
11831 ) -> Task<Result<Vec<Completion>>>;
11832
11833 fn resolve_completions(
11834 &self,
11835 buffer: Model<Buffer>,
11836 completion_indices: Vec<usize>,
11837 completions: Arc<RwLock<Box<[Completion]>>>,
11838 cx: &mut ViewContext<Editor>,
11839 ) -> Task<Result<bool>>;
11840
11841 fn apply_additional_edits_for_completion(
11842 &self,
11843 buffer: Model<Buffer>,
11844 completion: Completion,
11845 push_to_history: bool,
11846 cx: &mut ViewContext<Editor>,
11847 ) -> Task<Result<Option<language::Transaction>>>;
11848
11849 fn is_completion_trigger(
11850 &self,
11851 buffer: &Model<Buffer>,
11852 position: language::Anchor,
11853 text: &str,
11854 trigger_in_words: bool,
11855 cx: &mut ViewContext<Editor>,
11856 ) -> bool;
11857}
11858
11859fn snippet_completions(
11860 project: &Project,
11861 buffer: &Model<Buffer>,
11862 buffer_position: text::Anchor,
11863 cx: &mut AppContext,
11864) -> Vec<Completion> {
11865 let language = buffer.read(cx).language_at(buffer_position);
11866 let language_name = language.as_ref().map(|language| language.lsp_id());
11867 let snippet_store = project.snippets().read(cx);
11868 let snippets = snippet_store.snippets_for(language_name, cx);
11869
11870 if snippets.is_empty() {
11871 return vec![];
11872 }
11873 let snapshot = buffer.read(cx).text_snapshot();
11874 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
11875
11876 let mut lines = chunks.lines();
11877 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
11878 return vec![];
11879 };
11880
11881 let scope = language.map(|language| language.default_scope());
11882 let mut last_word = line_at
11883 .chars()
11884 .rev()
11885 .take_while(|c| char_kind(&scope, *c) == CharKind::Word)
11886 .collect::<String>();
11887 last_word = last_word.chars().rev().collect();
11888 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
11889 let to_lsp = |point: &text::Anchor| {
11890 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
11891 point_to_lsp(end)
11892 };
11893 let lsp_end = to_lsp(&buffer_position);
11894 snippets
11895 .into_iter()
11896 .filter_map(|snippet| {
11897 let matching_prefix = snippet
11898 .prefix
11899 .iter()
11900 .find(|prefix| prefix.starts_with(&last_word))?;
11901 let start = as_offset - last_word.len();
11902 let start = snapshot.anchor_before(start);
11903 let range = start..buffer_position;
11904 let lsp_start = to_lsp(&start);
11905 let lsp_range = lsp::Range {
11906 start: lsp_start,
11907 end: lsp_end,
11908 };
11909 Some(Completion {
11910 old_range: range,
11911 new_text: snippet.body.clone(),
11912 label: CodeLabel {
11913 text: matching_prefix.clone(),
11914 runs: vec![],
11915 filter_range: 0..matching_prefix.len(),
11916 },
11917 server_id: LanguageServerId(usize::MAX),
11918 documentation: snippet
11919 .description
11920 .clone()
11921 .map(|description| Documentation::SingleLine(description)),
11922 lsp_completion: lsp::CompletionItem {
11923 label: snippet.prefix.first().unwrap().clone(),
11924 kind: Some(CompletionItemKind::SNIPPET),
11925 label_details: snippet.description.as_ref().map(|description| {
11926 lsp::CompletionItemLabelDetails {
11927 detail: Some(description.clone()),
11928 description: None,
11929 }
11930 }),
11931 insert_text_format: Some(InsertTextFormat::SNIPPET),
11932 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
11933 lsp::InsertReplaceEdit {
11934 new_text: snippet.body.clone(),
11935 insert: lsp_range,
11936 replace: lsp_range,
11937 },
11938 )),
11939 filter_text: Some(snippet.body.clone()),
11940 sort_text: Some(char::MAX.to_string()),
11941 ..Default::default()
11942 },
11943 confirm: None,
11944 show_new_completions_on_confirm: false,
11945 })
11946 })
11947 .collect()
11948}
11949
11950impl CompletionProvider for Model<Project> {
11951 fn completions(
11952 &self,
11953 buffer: &Model<Buffer>,
11954 buffer_position: text::Anchor,
11955 options: CompletionContext,
11956 cx: &mut ViewContext<Editor>,
11957 ) -> Task<Result<Vec<Completion>>> {
11958 self.update(cx, |project, cx| {
11959 let snippets = snippet_completions(project, buffer, buffer_position, cx);
11960 let project_completions = project.completions(&buffer, buffer_position, options, cx);
11961 cx.background_executor().spawn(async move {
11962 let mut completions = project_completions.await?;
11963 //let snippets = snippets.into_iter().;
11964 completions.extend(snippets);
11965 Ok(completions)
11966 })
11967 })
11968 }
11969
11970 fn resolve_completions(
11971 &self,
11972 buffer: Model<Buffer>,
11973 completion_indices: Vec<usize>,
11974 completions: Arc<RwLock<Box<[Completion]>>>,
11975 cx: &mut ViewContext<Editor>,
11976 ) -> Task<Result<bool>> {
11977 self.update(cx, |project, cx| {
11978 project.resolve_completions(buffer, completion_indices, completions, cx)
11979 })
11980 }
11981
11982 fn apply_additional_edits_for_completion(
11983 &self,
11984 buffer: Model<Buffer>,
11985 completion: Completion,
11986 push_to_history: bool,
11987 cx: &mut ViewContext<Editor>,
11988 ) -> Task<Result<Option<language::Transaction>>> {
11989 self.update(cx, |project, cx| {
11990 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11991 })
11992 }
11993
11994 fn is_completion_trigger(
11995 &self,
11996 buffer: &Model<Buffer>,
11997 position: language::Anchor,
11998 text: &str,
11999 trigger_in_words: bool,
12000 cx: &mut ViewContext<Editor>,
12001 ) -> bool {
12002 if !EditorSettings::get_global(cx).show_completions_on_input {
12003 return false;
12004 }
12005
12006 let mut chars = text.chars();
12007 let char = if let Some(char) = chars.next() {
12008 char
12009 } else {
12010 return false;
12011 };
12012 if chars.next().is_some() {
12013 return false;
12014 }
12015
12016 let buffer = buffer.read(cx);
12017 let scope = buffer.snapshot().language_scope_at(position);
12018 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
12019 return true;
12020 }
12021
12022 buffer
12023 .completion_triggers()
12024 .iter()
12025 .any(|string| string == text)
12026 }
12027}
12028
12029fn inlay_hint_settings(
12030 location: Anchor,
12031 snapshot: &MultiBufferSnapshot,
12032 cx: &mut ViewContext<'_, Editor>,
12033) -> InlayHintSettings {
12034 let file = snapshot.file_at(location);
12035 let language = snapshot.language_at(location);
12036 let settings = all_language_settings(file, cx);
12037 settings
12038 .language(language.map(|l| l.name()).as_deref())
12039 .inlay_hints
12040}
12041
12042fn consume_contiguous_rows(
12043 contiguous_row_selections: &mut Vec<Selection<Point>>,
12044 selection: &Selection<Point>,
12045 display_map: &DisplaySnapshot,
12046 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
12047) -> (MultiBufferRow, MultiBufferRow) {
12048 contiguous_row_selections.push(selection.clone());
12049 let start_row = MultiBufferRow(selection.start.row);
12050 let mut end_row = ending_row(selection, display_map);
12051
12052 while let Some(next_selection) = selections.peek() {
12053 if next_selection.start.row <= end_row.0 {
12054 end_row = ending_row(next_selection, display_map);
12055 contiguous_row_selections.push(selections.next().unwrap().clone());
12056 } else {
12057 break;
12058 }
12059 }
12060 (start_row, end_row)
12061}
12062
12063fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
12064 if next_selection.end.column > 0 || next_selection.is_empty() {
12065 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
12066 } else {
12067 MultiBufferRow(next_selection.end.row)
12068 }
12069}
12070
12071impl EditorSnapshot {
12072 pub fn remote_selections_in_range<'a>(
12073 &'a self,
12074 range: &'a Range<Anchor>,
12075 collaboration_hub: &dyn CollaborationHub,
12076 cx: &'a AppContext,
12077 ) -> impl 'a + Iterator<Item = RemoteSelection> {
12078 let participant_names = collaboration_hub.user_names(cx);
12079 let participant_indices = collaboration_hub.user_participant_indices(cx);
12080 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
12081 let collaborators_by_replica_id = collaborators_by_peer_id
12082 .iter()
12083 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
12084 .collect::<HashMap<_, _>>();
12085 self.buffer_snapshot
12086 .selections_in_range(range, false)
12087 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
12088 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
12089 let participant_index = participant_indices.get(&collaborator.user_id).copied();
12090 let user_name = participant_names.get(&collaborator.user_id).cloned();
12091 Some(RemoteSelection {
12092 replica_id,
12093 selection,
12094 cursor_shape,
12095 line_mode,
12096 participant_index,
12097 peer_id: collaborator.peer_id,
12098 user_name,
12099 })
12100 })
12101 }
12102
12103 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
12104 self.display_snapshot.buffer_snapshot.language_at(position)
12105 }
12106
12107 pub fn is_focused(&self) -> bool {
12108 self.is_focused
12109 }
12110
12111 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
12112 self.placeholder_text.as_ref()
12113 }
12114
12115 pub fn scroll_position(&self) -> gpui::Point<f32> {
12116 self.scroll_anchor.scroll_position(&self.display_snapshot)
12117 }
12118
12119 pub fn gutter_dimensions(
12120 &self,
12121 font_id: FontId,
12122 font_size: Pixels,
12123 em_width: Pixels,
12124 max_line_number_width: Pixels,
12125 cx: &AppContext,
12126 ) -> GutterDimensions {
12127 if !self.show_gutter {
12128 return GutterDimensions::default();
12129 }
12130 let descent = cx.text_system().descent(font_id, font_size);
12131
12132 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
12133 matches!(
12134 ProjectSettings::get_global(cx).git.git_gutter,
12135 Some(GitGutterSetting::TrackedFiles)
12136 )
12137 });
12138 let gutter_settings = EditorSettings::get_global(cx).gutter;
12139 let show_line_numbers = self
12140 .show_line_numbers
12141 .unwrap_or(gutter_settings.line_numbers);
12142 let line_gutter_width = if show_line_numbers {
12143 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
12144 let min_width_for_number_on_gutter = em_width * 4.0;
12145 max_line_number_width.max(min_width_for_number_on_gutter)
12146 } else {
12147 0.0.into()
12148 };
12149
12150 let show_code_actions = self
12151 .show_code_actions
12152 .unwrap_or(gutter_settings.code_actions);
12153
12154 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
12155
12156 let git_blame_entries_width = self
12157 .render_git_blame_gutter
12158 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
12159
12160 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
12161 left_padding += if show_code_actions || show_runnables {
12162 em_width * 3.0
12163 } else if show_git_gutter && show_line_numbers {
12164 em_width * 2.0
12165 } else if show_git_gutter || show_line_numbers {
12166 em_width
12167 } else {
12168 px(0.)
12169 };
12170
12171 let right_padding = if gutter_settings.folds && show_line_numbers {
12172 em_width * 4.0
12173 } else if gutter_settings.folds {
12174 em_width * 3.0
12175 } else if show_line_numbers {
12176 em_width
12177 } else {
12178 px(0.)
12179 };
12180
12181 GutterDimensions {
12182 left_padding,
12183 right_padding,
12184 width: line_gutter_width + left_padding + right_padding,
12185 margin: -descent,
12186 git_blame_entries_width,
12187 }
12188 }
12189
12190 pub fn render_fold_toggle(
12191 &self,
12192 buffer_row: MultiBufferRow,
12193 row_contains_cursor: bool,
12194 editor: View<Editor>,
12195 cx: &mut WindowContext,
12196 ) -> Option<AnyElement> {
12197 let folded = self.is_line_folded(buffer_row);
12198
12199 if let Some(crease) = self
12200 .crease_snapshot
12201 .query_row(buffer_row, &self.buffer_snapshot)
12202 {
12203 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12204 if folded {
12205 editor.update(cx, |editor, cx| {
12206 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12207 });
12208 } else {
12209 editor.update(cx, |editor, cx| {
12210 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12211 });
12212 }
12213 });
12214
12215 Some((crease.render_toggle)(
12216 buffer_row,
12217 folded,
12218 toggle_callback,
12219 cx,
12220 ))
12221 } else if folded
12222 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12223 {
12224 Some(
12225 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12226 .selected(folded)
12227 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12228 if folded {
12229 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12230 } else {
12231 this.fold_at(&FoldAt { buffer_row }, cx);
12232 }
12233 }))
12234 .into_any_element(),
12235 )
12236 } else {
12237 None
12238 }
12239 }
12240
12241 pub fn render_crease_trailer(
12242 &self,
12243 buffer_row: MultiBufferRow,
12244 cx: &mut WindowContext,
12245 ) -> Option<AnyElement> {
12246 let folded = self.is_line_folded(buffer_row);
12247 let crease = self
12248 .crease_snapshot
12249 .query_row(buffer_row, &self.buffer_snapshot)?;
12250 Some((crease.render_trailer)(buffer_row, folded, cx))
12251 }
12252}
12253
12254impl Deref for EditorSnapshot {
12255 type Target = DisplaySnapshot;
12256
12257 fn deref(&self) -> &Self::Target {
12258 &self.display_snapshot
12259 }
12260}
12261
12262#[derive(Clone, Debug, PartialEq, Eq)]
12263pub enum EditorEvent {
12264 InputIgnored {
12265 text: Arc<str>,
12266 },
12267 InputHandled {
12268 utf16_range_to_replace: Option<Range<isize>>,
12269 text: Arc<str>,
12270 },
12271 ExcerptsAdded {
12272 buffer: Model<Buffer>,
12273 predecessor: ExcerptId,
12274 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12275 },
12276 ExcerptsRemoved {
12277 ids: Vec<ExcerptId>,
12278 },
12279 ExcerptsEdited {
12280 ids: Vec<ExcerptId>,
12281 },
12282 ExcerptsExpanded {
12283 ids: Vec<ExcerptId>,
12284 },
12285 BufferEdited,
12286 Edited {
12287 transaction_id: clock::Lamport,
12288 },
12289 Reparsed(BufferId),
12290 Focused,
12291 FocusedIn,
12292 Blurred,
12293 DirtyChanged,
12294 Saved,
12295 TitleChanged,
12296 DiffBaseChanged,
12297 SelectionsChanged {
12298 local: bool,
12299 },
12300 ScrollPositionChanged {
12301 local: bool,
12302 autoscroll: bool,
12303 },
12304 Closed,
12305 TransactionUndone {
12306 transaction_id: clock::Lamport,
12307 },
12308 TransactionBegun {
12309 transaction_id: clock::Lamport,
12310 },
12311}
12312
12313impl EventEmitter<EditorEvent> for Editor {}
12314
12315impl FocusableView for Editor {
12316 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12317 self.focus_handle.clone()
12318 }
12319}
12320
12321impl Render for Editor {
12322 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12323 let settings = ThemeSettings::get_global(cx);
12324
12325 let text_style = match self.mode {
12326 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12327 color: cx.theme().colors().editor_foreground,
12328 font_family: settings.ui_font.family.clone(),
12329 font_features: settings.ui_font.features.clone(),
12330 font_size: rems(0.875).into(),
12331 font_weight: settings.ui_font.weight,
12332 font_style: FontStyle::Normal,
12333 line_height: relative(settings.buffer_line_height.value()),
12334 background_color: None,
12335 underline: None,
12336 strikethrough: None,
12337 white_space: WhiteSpace::Normal,
12338 },
12339 EditorMode::Full => TextStyle {
12340 color: cx.theme().colors().editor_foreground,
12341 font_family: settings.buffer_font.family.clone(),
12342 font_features: settings.buffer_font.features.clone(),
12343 font_size: settings.buffer_font_size(cx).into(),
12344 font_weight: settings.buffer_font.weight,
12345 font_style: FontStyle::Normal,
12346 line_height: relative(settings.buffer_line_height.value()),
12347 background_color: None,
12348 underline: None,
12349 strikethrough: None,
12350 white_space: WhiteSpace::Normal,
12351 },
12352 };
12353
12354 let background = match self.mode {
12355 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12356 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12357 EditorMode::Full => cx.theme().colors().editor_background,
12358 };
12359
12360 EditorElement::new(
12361 cx.view(),
12362 EditorStyle {
12363 background,
12364 local_player: cx.theme().players().local(),
12365 text: text_style,
12366 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12367 syntax: cx.theme().syntax().clone(),
12368 status: cx.theme().status().clone(),
12369 inlay_hints_style: HighlightStyle {
12370 color: Some(cx.theme().status().hint),
12371 ..HighlightStyle::default()
12372 },
12373 suggestions_style: HighlightStyle {
12374 color: Some(cx.theme().status().predictive),
12375 ..HighlightStyle::default()
12376 },
12377 },
12378 )
12379 }
12380}
12381
12382impl ViewInputHandler for Editor {
12383 fn text_for_range(
12384 &mut self,
12385 range_utf16: Range<usize>,
12386 cx: &mut ViewContext<Self>,
12387 ) -> Option<String> {
12388 Some(
12389 self.buffer
12390 .read(cx)
12391 .read(cx)
12392 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12393 .collect(),
12394 )
12395 }
12396
12397 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12398 // Prevent the IME menu from appearing when holding down an alphabetic key
12399 // while input is disabled.
12400 if !self.input_enabled {
12401 return None;
12402 }
12403
12404 let range = self.selections.newest::<OffsetUtf16>(cx).range();
12405 Some(range.start.0..range.end.0)
12406 }
12407
12408 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12409 let snapshot = self.buffer.read(cx).read(cx);
12410 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
12411 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12412 }
12413
12414 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12415 self.clear_highlights::<InputComposition>(cx);
12416 self.ime_transaction.take();
12417 }
12418
12419 fn replace_text_in_range(
12420 &mut self,
12421 range_utf16: Option<Range<usize>>,
12422 text: &str,
12423 cx: &mut ViewContext<Self>,
12424 ) {
12425 if !self.input_enabled {
12426 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12427 return;
12428 }
12429
12430 self.transact(cx, |this, cx| {
12431 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12432 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12433 Some(this.selection_replacement_ranges(range_utf16, cx))
12434 } else {
12435 this.marked_text_ranges(cx)
12436 };
12437
12438 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12439 let newest_selection_id = this.selections.newest_anchor().id;
12440 this.selections
12441 .all::<OffsetUtf16>(cx)
12442 .iter()
12443 .zip(ranges_to_replace.iter())
12444 .find_map(|(selection, range)| {
12445 if selection.id == newest_selection_id {
12446 Some(
12447 (range.start.0 as isize - selection.head().0 as isize)
12448 ..(range.end.0 as isize - selection.head().0 as isize),
12449 )
12450 } else {
12451 None
12452 }
12453 })
12454 });
12455
12456 cx.emit(EditorEvent::InputHandled {
12457 utf16_range_to_replace: range_to_replace,
12458 text: text.into(),
12459 });
12460
12461 if let Some(new_selected_ranges) = new_selected_ranges {
12462 this.change_selections(None, cx, |selections| {
12463 selections.select_ranges(new_selected_ranges)
12464 });
12465 this.backspace(&Default::default(), cx);
12466 }
12467
12468 this.handle_input(text, cx);
12469 });
12470
12471 if let Some(transaction) = self.ime_transaction {
12472 self.buffer.update(cx, |buffer, cx| {
12473 buffer.group_until_transaction(transaction, cx);
12474 });
12475 }
12476
12477 self.unmark_text(cx);
12478 }
12479
12480 fn replace_and_mark_text_in_range(
12481 &mut self,
12482 range_utf16: Option<Range<usize>>,
12483 text: &str,
12484 new_selected_range_utf16: Option<Range<usize>>,
12485 cx: &mut ViewContext<Self>,
12486 ) {
12487 if !self.input_enabled {
12488 return;
12489 }
12490
12491 let transaction = self.transact(cx, |this, cx| {
12492 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12493 let snapshot = this.buffer.read(cx).read(cx);
12494 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12495 for marked_range in &mut marked_ranges {
12496 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12497 marked_range.start.0 += relative_range_utf16.start;
12498 marked_range.start =
12499 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12500 marked_range.end =
12501 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12502 }
12503 }
12504 Some(marked_ranges)
12505 } else if let Some(range_utf16) = range_utf16 {
12506 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12507 Some(this.selection_replacement_ranges(range_utf16, cx))
12508 } else {
12509 None
12510 };
12511
12512 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12513 let newest_selection_id = this.selections.newest_anchor().id;
12514 this.selections
12515 .all::<OffsetUtf16>(cx)
12516 .iter()
12517 .zip(ranges_to_replace.iter())
12518 .find_map(|(selection, range)| {
12519 if selection.id == newest_selection_id {
12520 Some(
12521 (range.start.0 as isize - selection.head().0 as isize)
12522 ..(range.end.0 as isize - selection.head().0 as isize),
12523 )
12524 } else {
12525 None
12526 }
12527 })
12528 });
12529
12530 cx.emit(EditorEvent::InputHandled {
12531 utf16_range_to_replace: range_to_replace,
12532 text: text.into(),
12533 });
12534
12535 if let Some(ranges) = ranges_to_replace {
12536 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12537 }
12538
12539 let marked_ranges = {
12540 let snapshot = this.buffer.read(cx).read(cx);
12541 this.selections
12542 .disjoint_anchors()
12543 .iter()
12544 .map(|selection| {
12545 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12546 })
12547 .collect::<Vec<_>>()
12548 };
12549
12550 if text.is_empty() {
12551 this.unmark_text(cx);
12552 } else {
12553 this.highlight_text::<InputComposition>(
12554 marked_ranges.clone(),
12555 HighlightStyle {
12556 underline: Some(UnderlineStyle {
12557 thickness: px(1.),
12558 color: None,
12559 wavy: false,
12560 }),
12561 ..Default::default()
12562 },
12563 cx,
12564 );
12565 }
12566
12567 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12568 let use_autoclose = this.use_autoclose;
12569 let use_auto_surround = this.use_auto_surround;
12570 this.set_use_autoclose(false);
12571 this.set_use_auto_surround(false);
12572 this.handle_input(text, cx);
12573 this.set_use_autoclose(use_autoclose);
12574 this.set_use_auto_surround(use_auto_surround);
12575
12576 if let Some(new_selected_range) = new_selected_range_utf16 {
12577 let snapshot = this.buffer.read(cx).read(cx);
12578 let new_selected_ranges = marked_ranges
12579 .into_iter()
12580 .map(|marked_range| {
12581 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12582 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12583 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12584 snapshot.clip_offset_utf16(new_start, Bias::Left)
12585 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12586 })
12587 .collect::<Vec<_>>();
12588
12589 drop(snapshot);
12590 this.change_selections(None, cx, |selections| {
12591 selections.select_ranges(new_selected_ranges)
12592 });
12593 }
12594 });
12595
12596 self.ime_transaction = self.ime_transaction.or(transaction);
12597 if let Some(transaction) = self.ime_transaction {
12598 self.buffer.update(cx, |buffer, cx| {
12599 buffer.group_until_transaction(transaction, cx);
12600 });
12601 }
12602
12603 if self.text_highlights::<InputComposition>(cx).is_none() {
12604 self.ime_transaction.take();
12605 }
12606 }
12607
12608 fn bounds_for_range(
12609 &mut self,
12610 range_utf16: Range<usize>,
12611 element_bounds: gpui::Bounds<Pixels>,
12612 cx: &mut ViewContext<Self>,
12613 ) -> Option<gpui::Bounds<Pixels>> {
12614 let text_layout_details = self.text_layout_details(cx);
12615 let style = &text_layout_details.editor_style;
12616 let font_id = cx.text_system().resolve_font(&style.text.font());
12617 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12618 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12619
12620 let em_width = cx
12621 .text_system()
12622 .typographic_bounds(font_id, font_size, 'm')
12623 .unwrap()
12624 .size
12625 .width;
12626
12627 let snapshot = self.snapshot(cx);
12628 let scroll_position = snapshot.scroll_position();
12629 let scroll_left = scroll_position.x * em_width;
12630
12631 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12632 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12633 + self.gutter_dimensions.width;
12634 let y = line_height * (start.row().as_f32() - scroll_position.y);
12635
12636 Some(Bounds {
12637 origin: element_bounds.origin + point(x, y),
12638 size: size(em_width, line_height),
12639 })
12640 }
12641}
12642
12643trait SelectionExt {
12644 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12645 fn spanned_rows(
12646 &self,
12647 include_end_if_at_line_start: bool,
12648 map: &DisplaySnapshot,
12649 ) -> Range<MultiBufferRow>;
12650}
12651
12652impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12653 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12654 let start = self
12655 .start
12656 .to_point(&map.buffer_snapshot)
12657 .to_display_point(map);
12658 let end = self
12659 .end
12660 .to_point(&map.buffer_snapshot)
12661 .to_display_point(map);
12662 if self.reversed {
12663 end..start
12664 } else {
12665 start..end
12666 }
12667 }
12668
12669 fn spanned_rows(
12670 &self,
12671 include_end_if_at_line_start: bool,
12672 map: &DisplaySnapshot,
12673 ) -> Range<MultiBufferRow> {
12674 let start = self.start.to_point(&map.buffer_snapshot);
12675 let mut end = self.end.to_point(&map.buffer_snapshot);
12676 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
12677 end.row -= 1;
12678 }
12679
12680 let buffer_start = map.prev_line_boundary(start).0;
12681 let buffer_end = map.next_line_boundary(end).0;
12682 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
12683 }
12684}
12685
12686impl<T: InvalidationRegion> InvalidationStack<T> {
12687 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
12688 where
12689 S: Clone + ToOffset,
12690 {
12691 while let Some(region) = self.last() {
12692 let all_selections_inside_invalidation_ranges =
12693 if selections.len() == region.ranges().len() {
12694 selections
12695 .iter()
12696 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
12697 .all(|(selection, invalidation_range)| {
12698 let head = selection.head().to_offset(buffer);
12699 invalidation_range.start <= head && invalidation_range.end >= head
12700 })
12701 } else {
12702 false
12703 };
12704
12705 if all_selections_inside_invalidation_ranges {
12706 break;
12707 } else {
12708 self.pop();
12709 }
12710 }
12711 }
12712}
12713
12714impl<T> Default for InvalidationStack<T> {
12715 fn default() -> Self {
12716 Self(Default::default())
12717 }
12718}
12719
12720impl<T> Deref for InvalidationStack<T> {
12721 type Target = Vec<T>;
12722
12723 fn deref(&self) -> &Self::Target {
12724 &self.0
12725 }
12726}
12727
12728impl<T> DerefMut for InvalidationStack<T> {
12729 fn deref_mut(&mut self) -> &mut Self::Target {
12730 &mut self.0
12731 }
12732}
12733
12734impl InvalidationRegion for SnippetState {
12735 fn ranges(&self) -> &[Range<Anchor>] {
12736 &self.ranges[self.active_index]
12737 }
12738}
12739
12740pub fn diagnostic_block_renderer(
12741 diagnostic: Diagnostic,
12742 max_message_rows: Option<u8>,
12743 allow_closing: bool,
12744 _is_valid: bool,
12745) -> RenderBlock {
12746 let (text_without_backticks, code_ranges) =
12747 highlight_diagnostic_message(&diagnostic, max_message_rows);
12748
12749 Box::new(move |cx: &mut BlockContext| {
12750 let group_id: SharedString = cx.transform_block_id.to_string().into();
12751
12752 let mut text_style = cx.text_style().clone();
12753 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
12754 let theme_settings = ThemeSettings::get_global(cx);
12755 text_style.font_family = theme_settings.buffer_font.family.clone();
12756 text_style.font_style = theme_settings.buffer_font.style;
12757 text_style.font_features = theme_settings.buffer_font.features.clone();
12758 text_style.font_weight = theme_settings.buffer_font.weight;
12759
12760 let multi_line_diagnostic = diagnostic.message.contains('\n');
12761
12762 let buttons = |diagnostic: &Diagnostic, block_id: TransformBlockId| {
12763 if multi_line_diagnostic {
12764 v_flex()
12765 } else {
12766 h_flex()
12767 }
12768 .when(allow_closing, |div| {
12769 div.children(diagnostic.is_primary.then(|| {
12770 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
12771 .icon_color(Color::Muted)
12772 .size(ButtonSize::Compact)
12773 .style(ButtonStyle::Transparent)
12774 .visible_on_hover(group_id.clone())
12775 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
12776 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
12777 }))
12778 })
12779 .child(
12780 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
12781 .icon_color(Color::Muted)
12782 .size(ButtonSize::Compact)
12783 .style(ButtonStyle::Transparent)
12784 .visible_on_hover(group_id.clone())
12785 .on_click({
12786 let message = diagnostic.message.clone();
12787 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12788 })
12789 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12790 )
12791 };
12792
12793 let icon_size = buttons(&diagnostic, cx.transform_block_id)
12794 .into_any_element()
12795 .layout_as_root(AvailableSpace::min_size(), cx);
12796
12797 h_flex()
12798 .id(cx.transform_block_id)
12799 .group(group_id.clone())
12800 .relative()
12801 .size_full()
12802 .pl(cx.gutter_dimensions.width)
12803 .w(cx.max_width + cx.gutter_dimensions.width)
12804 .child(
12805 div()
12806 .flex()
12807 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12808 .flex_shrink(),
12809 )
12810 .child(buttons(&diagnostic, cx.transform_block_id))
12811 .child(div().flex().flex_shrink_0().child(
12812 StyledText::new(text_without_backticks.clone()).with_highlights(
12813 &text_style,
12814 code_ranges.iter().map(|range| {
12815 (
12816 range.clone(),
12817 HighlightStyle {
12818 font_weight: Some(FontWeight::BOLD),
12819 ..Default::default()
12820 },
12821 )
12822 }),
12823 ),
12824 ))
12825 .into_any_element()
12826 })
12827}
12828
12829pub fn highlight_diagnostic_message(
12830 diagnostic: &Diagnostic,
12831 mut max_message_rows: Option<u8>,
12832) -> (SharedString, Vec<Range<usize>>) {
12833 let mut text_without_backticks = String::new();
12834 let mut code_ranges = Vec::new();
12835
12836 if let Some(source) = &diagnostic.source {
12837 text_without_backticks.push_str(&source);
12838 code_ranges.push(0..source.len());
12839 text_without_backticks.push_str(": ");
12840 }
12841
12842 let mut prev_offset = 0;
12843 let mut in_code_block = false;
12844 let has_row_limit = max_message_rows.is_some();
12845 let mut newline_indices = diagnostic
12846 .message
12847 .match_indices('\n')
12848 .filter(|_| has_row_limit)
12849 .map(|(ix, _)| ix)
12850 .fuse()
12851 .peekable();
12852
12853 for (quote_ix, _) in diagnostic
12854 .message
12855 .match_indices('`')
12856 .chain([(diagnostic.message.len(), "")])
12857 {
12858 let mut first_newline_ix = None;
12859 let mut last_newline_ix = None;
12860 while let Some(newline_ix) = newline_indices.peek() {
12861 if *newline_ix < quote_ix {
12862 if first_newline_ix.is_none() {
12863 first_newline_ix = Some(*newline_ix);
12864 }
12865 last_newline_ix = Some(*newline_ix);
12866
12867 if let Some(rows_left) = &mut max_message_rows {
12868 if *rows_left == 0 {
12869 break;
12870 } else {
12871 *rows_left -= 1;
12872 }
12873 }
12874 let _ = newline_indices.next();
12875 } else {
12876 break;
12877 }
12878 }
12879 let prev_len = text_without_backticks.len();
12880 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
12881 text_without_backticks.push_str(new_text);
12882 if in_code_block {
12883 code_ranges.push(prev_len..text_without_backticks.len());
12884 }
12885 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
12886 in_code_block = !in_code_block;
12887 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
12888 text_without_backticks.push_str("...");
12889 break;
12890 }
12891 }
12892
12893 (text_without_backticks.into(), code_ranges)
12894}
12895
12896fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
12897 match severity {
12898 DiagnosticSeverity::ERROR => colors.error,
12899 DiagnosticSeverity::WARNING => colors.warning,
12900 DiagnosticSeverity::INFORMATION => colors.info,
12901 DiagnosticSeverity::HINT => colors.info,
12902 _ => colors.ignored,
12903 }
12904}
12905
12906pub fn styled_runs_for_code_label<'a>(
12907 label: &'a CodeLabel,
12908 syntax_theme: &'a theme::SyntaxTheme,
12909) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12910 let fade_out = HighlightStyle {
12911 fade_out: Some(0.35),
12912 ..Default::default()
12913 };
12914
12915 let mut prev_end = label.filter_range.end;
12916 label
12917 .runs
12918 .iter()
12919 .enumerate()
12920 .flat_map(move |(ix, (range, highlight_id))| {
12921 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12922 style
12923 } else {
12924 return Default::default();
12925 };
12926 let mut muted_style = style;
12927 muted_style.highlight(fade_out);
12928
12929 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12930 if range.start >= label.filter_range.end {
12931 if range.start > prev_end {
12932 runs.push((prev_end..range.start, fade_out));
12933 }
12934 runs.push((range.clone(), muted_style));
12935 } else if range.end <= label.filter_range.end {
12936 runs.push((range.clone(), style));
12937 } else {
12938 runs.push((range.start..label.filter_range.end, style));
12939 runs.push((label.filter_range.end..range.end, muted_style));
12940 }
12941 prev_end = cmp::max(prev_end, range.end);
12942
12943 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12944 runs.push((prev_end..label.text.len(), fade_out));
12945 }
12946
12947 runs
12948 })
12949}
12950
12951pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12952 let mut prev_index = 0;
12953 let mut prev_codepoint: Option<char> = None;
12954 text.char_indices()
12955 .chain([(text.len(), '\0')])
12956 .filter_map(move |(index, codepoint)| {
12957 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12958 let is_boundary = index == text.len()
12959 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12960 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12961 if is_boundary {
12962 let chunk = &text[prev_index..index];
12963 prev_index = index;
12964 Some(chunk)
12965 } else {
12966 None
12967 }
12968 })
12969}
12970
12971pub trait RangeToAnchorExt {
12972 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12973}
12974
12975impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12976 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12977 let start_offset = self.start.to_offset(snapshot);
12978 let end_offset = self.end.to_offset(snapshot);
12979 if start_offset == end_offset {
12980 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12981 } else {
12982 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12983 }
12984 }
12985}
12986
12987pub trait RowExt {
12988 fn as_f32(&self) -> f32;
12989
12990 fn next_row(&self) -> Self;
12991
12992 fn previous_row(&self) -> Self;
12993
12994 fn minus(&self, other: Self) -> u32;
12995}
12996
12997impl RowExt for DisplayRow {
12998 fn as_f32(&self) -> f32 {
12999 self.0 as f32
13000 }
13001
13002 fn next_row(&self) -> Self {
13003 Self(self.0 + 1)
13004 }
13005
13006 fn previous_row(&self) -> Self {
13007 Self(self.0.saturating_sub(1))
13008 }
13009
13010 fn minus(&self, other: Self) -> u32 {
13011 self.0 - other.0
13012 }
13013}
13014
13015impl RowExt for MultiBufferRow {
13016 fn as_f32(&self) -> f32 {
13017 self.0 as f32
13018 }
13019
13020 fn next_row(&self) -> Self {
13021 Self(self.0 + 1)
13022 }
13023
13024 fn previous_row(&self) -> Self {
13025 Self(self.0.saturating_sub(1))
13026 }
13027
13028 fn minus(&self, other: Self) -> u32 {
13029 self.0 - other.0
13030 }
13031}
13032
13033trait RowRangeExt {
13034 type Row;
13035
13036 fn len(&self) -> usize;
13037
13038 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
13039}
13040
13041impl RowRangeExt for Range<MultiBufferRow> {
13042 type Row = MultiBufferRow;
13043
13044 fn len(&self) -> usize {
13045 (self.end.0 - self.start.0) as usize
13046 }
13047
13048 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
13049 (self.start.0..self.end.0).map(MultiBufferRow)
13050 }
13051}
13052
13053impl RowRangeExt for Range<DisplayRow> {
13054 type Row = DisplayRow;
13055
13056 fn len(&self) -> usize {
13057 (self.end.0 - self.start.0) as usize
13058 }
13059
13060 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
13061 (self.start.0..self.end.0).map(DisplayRow)
13062 }
13063}
13064
13065fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
13066 if hunk.diff_base_byte_range.is_empty() {
13067 DiffHunkStatus::Added
13068 } else if hunk.associated_range.is_empty() {
13069 DiffHunkStatus::Removed
13070 } else {
13071 DiffHunkStatus::Modified
13072 }
13073}