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::HoveredHunk;
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 if self.clear_clicked_diff_hunks(cx) {
2877 cx.notify();
2878 return;
2879 }
2880 if self.dismiss_menus_and_popups(true, cx) {
2881 return;
2882 }
2883
2884 if self.mode == EditorMode::Full {
2885 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2886 return;
2887 }
2888 }
2889
2890 cx.propagate();
2891 }
2892
2893 pub fn dismiss_menus_and_popups(
2894 &mut self,
2895 should_report_inline_completion_event: bool,
2896 cx: &mut ViewContext<Self>,
2897 ) -> bool {
2898 if self.take_rename(false, cx).is_some() {
2899 return true;
2900 }
2901
2902 if hide_hover(self, cx) {
2903 return true;
2904 }
2905
2906 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2907 return true;
2908 }
2909
2910 if self.hide_context_menu(cx).is_some() {
2911 return true;
2912 }
2913
2914 if self.mouse_context_menu.take().is_some() {
2915 return true;
2916 }
2917
2918 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2919 return true;
2920 }
2921
2922 if self.snippet_stack.pop().is_some() {
2923 return true;
2924 }
2925
2926 if self.mode == EditorMode::Full {
2927 if self.active_diagnostics.is_some() {
2928 self.dismiss_diagnostics(cx);
2929 return true;
2930 }
2931 }
2932
2933 false
2934 }
2935
2936 fn linked_editing_ranges_for(
2937 &self,
2938 selection: Range<text::Anchor>,
2939 cx: &AppContext,
2940 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2941 if self.linked_edit_ranges.is_empty() {
2942 return None;
2943 }
2944 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2945 selection.end.buffer_id.and_then(|end_buffer_id| {
2946 if selection.start.buffer_id != Some(end_buffer_id) {
2947 return None;
2948 }
2949 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2950 let snapshot = buffer.read(cx).snapshot();
2951 self.linked_edit_ranges
2952 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2953 .map(|ranges| (ranges, snapshot, buffer))
2954 })?;
2955 use text::ToOffset as TO;
2956 // find offset from the start of current range to current cursor position
2957 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2958
2959 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2960 let start_difference = start_offset - start_byte_offset;
2961 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2962 let end_difference = end_offset - start_byte_offset;
2963 // Current range has associated linked ranges.
2964 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2965 for range in linked_ranges.iter() {
2966 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2967 let end_offset = start_offset + end_difference;
2968 let start_offset = start_offset + start_difference;
2969 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2970 continue;
2971 }
2972 let start = buffer_snapshot.anchor_after(start_offset);
2973 let end = buffer_snapshot.anchor_after(end_offset);
2974 linked_edits
2975 .entry(buffer.clone())
2976 .or_default()
2977 .push(start..end);
2978 }
2979 Some(linked_edits)
2980 }
2981
2982 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2983 let text: Arc<str> = text.into();
2984
2985 if self.read_only(cx) {
2986 return;
2987 }
2988
2989 let selections = self.selections.all_adjusted(cx);
2990 let mut bracket_inserted = false;
2991 let mut edits = Vec::new();
2992 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2993 let mut new_selections = Vec::with_capacity(selections.len());
2994 let mut new_autoclose_regions = Vec::new();
2995 let snapshot = self.buffer.read(cx).read(cx);
2996
2997 for (selection, autoclose_region) in
2998 self.selections_with_autoclose_regions(selections, &snapshot)
2999 {
3000 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3001 // Determine if the inserted text matches the opening or closing
3002 // bracket of any of this language's bracket pairs.
3003 let mut bracket_pair = None;
3004 let mut is_bracket_pair_start = false;
3005 let mut is_bracket_pair_end = false;
3006 if !text.is_empty() {
3007 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3008 // and they are removing the character that triggered IME popup.
3009 for (pair, enabled) in scope.brackets() {
3010 if !pair.close && !pair.surround {
3011 continue;
3012 }
3013
3014 if enabled && pair.start.ends_with(text.as_ref()) {
3015 bracket_pair = Some(pair.clone());
3016 is_bracket_pair_start = true;
3017 break;
3018 }
3019 if pair.end.as_str() == text.as_ref() {
3020 bracket_pair = Some(pair.clone());
3021 is_bracket_pair_end = true;
3022 break;
3023 }
3024 }
3025 }
3026
3027 if let Some(bracket_pair) = bracket_pair {
3028 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3029 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3030 let auto_surround =
3031 self.use_auto_surround && snapshot_settings.use_auto_surround;
3032 if selection.is_empty() {
3033 if is_bracket_pair_start {
3034 let prefix_len = bracket_pair.start.len() - text.len();
3035
3036 // If the inserted text is a suffix of an opening bracket and the
3037 // selection is preceded by the rest of the opening bracket, then
3038 // insert the closing bracket.
3039 let following_text_allows_autoclose = snapshot
3040 .chars_at(selection.start)
3041 .next()
3042 .map_or(true, |c| scope.should_autoclose_before(c));
3043 let preceding_text_matches_prefix = prefix_len == 0
3044 || (selection.start.column >= (prefix_len as u32)
3045 && snapshot.contains_str_at(
3046 Point::new(
3047 selection.start.row,
3048 selection.start.column - (prefix_len as u32),
3049 ),
3050 &bracket_pair.start[..prefix_len],
3051 ));
3052
3053 if autoclose
3054 && bracket_pair.close
3055 && following_text_allows_autoclose
3056 && preceding_text_matches_prefix
3057 {
3058 let anchor = snapshot.anchor_before(selection.end);
3059 new_selections.push((selection.map(|_| anchor), text.len()));
3060 new_autoclose_regions.push((
3061 anchor,
3062 text.len(),
3063 selection.id,
3064 bracket_pair.clone(),
3065 ));
3066 edits.push((
3067 selection.range(),
3068 format!("{}{}", text, bracket_pair.end).into(),
3069 ));
3070 bracket_inserted = true;
3071 continue;
3072 }
3073 }
3074
3075 if let Some(region) = autoclose_region {
3076 // If the selection is followed by an auto-inserted closing bracket,
3077 // then don't insert that closing bracket again; just move the selection
3078 // past the closing bracket.
3079 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3080 && text.as_ref() == region.pair.end.as_str();
3081 if should_skip {
3082 let anchor = snapshot.anchor_after(selection.end);
3083 new_selections
3084 .push((selection.map(|_| anchor), region.pair.end.len()));
3085 continue;
3086 }
3087 }
3088
3089 let always_treat_brackets_as_autoclosed = snapshot
3090 .settings_at(selection.start, cx)
3091 .always_treat_brackets_as_autoclosed;
3092 if always_treat_brackets_as_autoclosed
3093 && is_bracket_pair_end
3094 && snapshot.contains_str_at(selection.end, text.as_ref())
3095 {
3096 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3097 // and the inserted text is a closing bracket and the selection is followed
3098 // by the closing bracket then move the selection past the closing bracket.
3099 let anchor = snapshot.anchor_after(selection.end);
3100 new_selections.push((selection.map(|_| anchor), text.len()));
3101 continue;
3102 }
3103 }
3104 // If an opening bracket is 1 character long and is typed while
3105 // text is selected, then surround that text with the bracket pair.
3106 else if auto_surround
3107 && bracket_pair.surround
3108 && is_bracket_pair_start
3109 && bracket_pair.start.chars().count() == 1
3110 {
3111 edits.push((selection.start..selection.start, text.clone()));
3112 edits.push((
3113 selection.end..selection.end,
3114 bracket_pair.end.as_str().into(),
3115 ));
3116 bracket_inserted = true;
3117 new_selections.push((
3118 Selection {
3119 id: selection.id,
3120 start: snapshot.anchor_after(selection.start),
3121 end: snapshot.anchor_before(selection.end),
3122 reversed: selection.reversed,
3123 goal: selection.goal,
3124 },
3125 0,
3126 ));
3127 continue;
3128 }
3129 }
3130 }
3131
3132 if self.auto_replace_emoji_shortcode
3133 && selection.is_empty()
3134 && text.as_ref().ends_with(':')
3135 {
3136 if let Some(possible_emoji_short_code) =
3137 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3138 {
3139 if !possible_emoji_short_code.is_empty() {
3140 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3141 let emoji_shortcode_start = Point::new(
3142 selection.start.row,
3143 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3144 );
3145
3146 // Remove shortcode from buffer
3147 edits.push((
3148 emoji_shortcode_start..selection.start,
3149 "".to_string().into(),
3150 ));
3151 new_selections.push((
3152 Selection {
3153 id: selection.id,
3154 start: snapshot.anchor_after(emoji_shortcode_start),
3155 end: snapshot.anchor_before(selection.start),
3156 reversed: selection.reversed,
3157 goal: selection.goal,
3158 },
3159 0,
3160 ));
3161
3162 // Insert emoji
3163 let selection_start_anchor = snapshot.anchor_after(selection.start);
3164 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3165 edits.push((selection.start..selection.end, emoji.to_string().into()));
3166
3167 continue;
3168 }
3169 }
3170 }
3171 }
3172
3173 // If not handling any auto-close operation, then just replace the selected
3174 // text with the given input and move the selection to the end of the
3175 // newly inserted text.
3176 let anchor = snapshot.anchor_after(selection.end);
3177 if !self.linked_edit_ranges.is_empty() {
3178 let start_anchor = snapshot.anchor_before(selection.start);
3179
3180 let is_word_char = text.chars().next().map_or(true, |char| {
3181 let scope = snapshot.language_scope_at(start_anchor.to_offset(&snapshot));
3182 let kind = char_kind(&scope, char);
3183
3184 kind == CharKind::Word
3185 });
3186
3187 if is_word_char {
3188 if let Some(ranges) = self
3189 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3190 {
3191 for (buffer, edits) in ranges {
3192 linked_edits
3193 .entry(buffer.clone())
3194 .or_default()
3195 .extend(edits.into_iter().map(|range| (range, text.clone())));
3196 }
3197 }
3198 }
3199 }
3200
3201 new_selections.push((selection.map(|_| anchor), 0));
3202 edits.push((selection.start..selection.end, text.clone()));
3203 }
3204
3205 drop(snapshot);
3206
3207 self.transact(cx, |this, cx| {
3208 this.buffer.update(cx, |buffer, cx| {
3209 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3210 });
3211 for (buffer, edits) in linked_edits {
3212 buffer.update(cx, |buffer, cx| {
3213 let snapshot = buffer.snapshot();
3214 let edits = edits
3215 .into_iter()
3216 .map(|(range, text)| {
3217 use text::ToPoint as TP;
3218 let end_point = TP::to_point(&range.end, &snapshot);
3219 let start_point = TP::to_point(&range.start, &snapshot);
3220 (start_point..end_point, text)
3221 })
3222 .sorted_by_key(|(range, _)| range.start)
3223 .collect::<Vec<_>>();
3224 buffer.edit(edits, None, cx);
3225 })
3226 }
3227 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3228 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3229 let snapshot = this.buffer.read(cx).read(cx);
3230 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3231 .zip(new_selection_deltas)
3232 .map(|(selection, delta)| Selection {
3233 id: selection.id,
3234 start: selection.start + delta,
3235 end: selection.end + delta,
3236 reversed: selection.reversed,
3237 goal: SelectionGoal::None,
3238 })
3239 .collect::<Vec<_>>();
3240
3241 let mut i = 0;
3242 for (position, delta, selection_id, pair) in new_autoclose_regions {
3243 let position = position.to_offset(&snapshot) + delta;
3244 let start = snapshot.anchor_before(position);
3245 let end = snapshot.anchor_after(position);
3246 while let Some(existing_state) = this.autoclose_regions.get(i) {
3247 match existing_state.range.start.cmp(&start, &snapshot) {
3248 Ordering::Less => i += 1,
3249 Ordering::Greater => break,
3250 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3251 Ordering::Less => i += 1,
3252 Ordering::Equal => break,
3253 Ordering::Greater => break,
3254 },
3255 }
3256 }
3257 this.autoclose_regions.insert(
3258 i,
3259 AutocloseRegion {
3260 selection_id,
3261 range: start..end,
3262 pair,
3263 },
3264 );
3265 }
3266
3267 drop(snapshot);
3268 let had_active_inline_completion = this.has_active_inline_completion(cx);
3269 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3270 s.select(new_selections)
3271 });
3272
3273 if !bracket_inserted && EditorSettings::get_global(cx).use_on_type_format {
3274 if let Some(on_type_format_task) =
3275 this.trigger_on_type_formatting(text.to_string(), cx)
3276 {
3277 on_type_format_task.detach_and_log_err(cx);
3278 }
3279 }
3280
3281 let editor_settings = EditorSettings::get_global(cx);
3282 if bracket_inserted
3283 && (editor_settings.auto_signature_help
3284 || editor_settings.show_signature_help_after_edits)
3285 {
3286 this.show_signature_help(&ShowSignatureHelp, cx);
3287 }
3288
3289 let trigger_in_words = !had_active_inline_completion;
3290 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3291 linked_editing_ranges::refresh_linked_ranges(this, cx);
3292 this.refresh_inline_completion(true, cx);
3293 });
3294 }
3295
3296 fn find_possible_emoji_shortcode_at_position(
3297 snapshot: &MultiBufferSnapshot,
3298 position: Point,
3299 ) -> Option<String> {
3300 let mut chars = Vec::new();
3301 let mut found_colon = false;
3302 for char in snapshot.reversed_chars_at(position).take(100) {
3303 // Found a possible emoji shortcode in the middle of the buffer
3304 if found_colon {
3305 if char.is_whitespace() {
3306 chars.reverse();
3307 return Some(chars.iter().collect());
3308 }
3309 // If the previous character is not a whitespace, we are in the middle of a word
3310 // and we only want to complete the shortcode if the word is made up of other emojis
3311 let mut containing_word = String::new();
3312 for ch in snapshot
3313 .reversed_chars_at(position)
3314 .skip(chars.len() + 1)
3315 .take(100)
3316 {
3317 if ch.is_whitespace() {
3318 break;
3319 }
3320 containing_word.push(ch);
3321 }
3322 let containing_word = containing_word.chars().rev().collect::<String>();
3323 if util::word_consists_of_emojis(containing_word.as_str()) {
3324 chars.reverse();
3325 return Some(chars.iter().collect());
3326 }
3327 }
3328
3329 if char.is_whitespace() || !char.is_ascii() {
3330 return None;
3331 }
3332 if char == ':' {
3333 found_colon = true;
3334 } else {
3335 chars.push(char);
3336 }
3337 }
3338 // Found a possible emoji shortcode at the beginning of the buffer
3339 chars.reverse();
3340 Some(chars.iter().collect())
3341 }
3342
3343 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3344 self.transact(cx, |this, cx| {
3345 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3346 let selections = this.selections.all::<usize>(cx);
3347 let multi_buffer = this.buffer.read(cx);
3348 let buffer = multi_buffer.snapshot(cx);
3349 selections
3350 .iter()
3351 .map(|selection| {
3352 let start_point = selection.start.to_point(&buffer);
3353 let mut indent =
3354 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3355 indent.len = cmp::min(indent.len, start_point.column);
3356 let start = selection.start;
3357 let end = selection.end;
3358 let selection_is_empty = start == end;
3359 let language_scope = buffer.language_scope_at(start);
3360 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3361 &language_scope
3362 {
3363 let leading_whitespace_len = buffer
3364 .reversed_chars_at(start)
3365 .take_while(|c| c.is_whitespace() && *c != '\n')
3366 .map(|c| c.len_utf8())
3367 .sum::<usize>();
3368
3369 let trailing_whitespace_len = buffer
3370 .chars_at(end)
3371 .take_while(|c| c.is_whitespace() && *c != '\n')
3372 .map(|c| c.len_utf8())
3373 .sum::<usize>();
3374
3375 let insert_extra_newline =
3376 language.brackets().any(|(pair, enabled)| {
3377 let pair_start = pair.start.trim_end();
3378 let pair_end = pair.end.trim_start();
3379
3380 enabled
3381 && pair.newline
3382 && buffer.contains_str_at(
3383 end + trailing_whitespace_len,
3384 pair_end,
3385 )
3386 && buffer.contains_str_at(
3387 (start - leading_whitespace_len)
3388 .saturating_sub(pair_start.len()),
3389 pair_start,
3390 )
3391 });
3392
3393 // Comment extension on newline is allowed only for cursor selections
3394 let comment_delimiter = maybe!({
3395 if !selection_is_empty {
3396 return None;
3397 }
3398
3399 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3400 return None;
3401 }
3402
3403 let delimiters = language.line_comment_prefixes();
3404 let max_len_of_delimiter =
3405 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3406 let (snapshot, range) =
3407 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3408
3409 let mut index_of_first_non_whitespace = 0;
3410 let comment_candidate = snapshot
3411 .chars_for_range(range)
3412 .skip_while(|c| {
3413 let should_skip = c.is_whitespace();
3414 if should_skip {
3415 index_of_first_non_whitespace += 1;
3416 }
3417 should_skip
3418 })
3419 .take(max_len_of_delimiter)
3420 .collect::<String>();
3421 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3422 comment_candidate.starts_with(comment_prefix.as_ref())
3423 })?;
3424 let cursor_is_placed_after_comment_marker =
3425 index_of_first_non_whitespace + comment_prefix.len()
3426 <= start_point.column as usize;
3427 if cursor_is_placed_after_comment_marker {
3428 Some(comment_prefix.clone())
3429 } else {
3430 None
3431 }
3432 });
3433 (comment_delimiter, insert_extra_newline)
3434 } else {
3435 (None, false)
3436 };
3437
3438 let capacity_for_delimiter = comment_delimiter
3439 .as_deref()
3440 .map(str::len)
3441 .unwrap_or_default();
3442 let mut new_text =
3443 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3444 new_text.push_str("\n");
3445 new_text.extend(indent.chars());
3446 if let Some(delimiter) = &comment_delimiter {
3447 new_text.push_str(&delimiter);
3448 }
3449 if insert_extra_newline {
3450 new_text = new_text.repeat(2);
3451 }
3452
3453 let anchor = buffer.anchor_after(end);
3454 let new_selection = selection.map(|_| anchor);
3455 (
3456 (start..end, new_text),
3457 (insert_extra_newline, new_selection),
3458 )
3459 })
3460 .unzip()
3461 };
3462
3463 this.edit_with_autoindent(edits, cx);
3464 let buffer = this.buffer.read(cx).snapshot(cx);
3465 let new_selections = selection_fixup_info
3466 .into_iter()
3467 .map(|(extra_newline_inserted, new_selection)| {
3468 let mut cursor = new_selection.end.to_point(&buffer);
3469 if extra_newline_inserted {
3470 cursor.row -= 1;
3471 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3472 }
3473 new_selection.map(|_| cursor)
3474 })
3475 .collect();
3476
3477 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3478 this.refresh_inline_completion(true, cx);
3479 });
3480 }
3481
3482 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3483 let buffer = self.buffer.read(cx);
3484 let snapshot = buffer.snapshot(cx);
3485
3486 let mut edits = Vec::new();
3487 let mut rows = Vec::new();
3488
3489 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3490 let cursor = selection.head();
3491 let row = cursor.row;
3492
3493 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3494
3495 let newline = "\n".to_string();
3496 edits.push((start_of_line..start_of_line, newline));
3497
3498 rows.push(row + rows_inserted as u32);
3499 }
3500
3501 self.transact(cx, |editor, cx| {
3502 editor.edit(edits, cx);
3503
3504 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3505 let mut index = 0;
3506 s.move_cursors_with(|map, _, _| {
3507 let row = rows[index];
3508 index += 1;
3509
3510 let point = Point::new(row, 0);
3511 let boundary = map.next_line_boundary(point).1;
3512 let clipped = map.clip_point(boundary, Bias::Left);
3513
3514 (clipped, SelectionGoal::None)
3515 });
3516 });
3517
3518 let mut indent_edits = Vec::new();
3519 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3520 for row in rows {
3521 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3522 for (row, indent) in indents {
3523 if indent.len == 0 {
3524 continue;
3525 }
3526
3527 let text = match indent.kind {
3528 IndentKind::Space => " ".repeat(indent.len as usize),
3529 IndentKind::Tab => "\t".repeat(indent.len as usize),
3530 };
3531 let point = Point::new(row.0, 0);
3532 indent_edits.push((point..point, text));
3533 }
3534 }
3535 editor.edit(indent_edits, cx);
3536 });
3537 }
3538
3539 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3540 let buffer = self.buffer.read(cx);
3541 let snapshot = buffer.snapshot(cx);
3542
3543 let mut edits = Vec::new();
3544 let mut rows = Vec::new();
3545 let mut rows_inserted = 0;
3546
3547 for selection in self.selections.all_adjusted(cx) {
3548 let cursor = selection.head();
3549 let row = cursor.row;
3550
3551 let point = Point::new(row + 1, 0);
3552 let start_of_line = snapshot.clip_point(point, Bias::Left);
3553
3554 let newline = "\n".to_string();
3555 edits.push((start_of_line..start_of_line, newline));
3556
3557 rows_inserted += 1;
3558 rows.push(row + rows_inserted);
3559 }
3560
3561 self.transact(cx, |editor, cx| {
3562 editor.edit(edits, cx);
3563
3564 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3565 let mut index = 0;
3566 s.move_cursors_with(|map, _, _| {
3567 let row = rows[index];
3568 index += 1;
3569
3570 let point = Point::new(row, 0);
3571 let boundary = map.next_line_boundary(point).1;
3572 let clipped = map.clip_point(boundary, Bias::Left);
3573
3574 (clipped, SelectionGoal::None)
3575 });
3576 });
3577
3578 let mut indent_edits = Vec::new();
3579 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3580 for row in rows {
3581 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3582 for (row, indent) in indents {
3583 if indent.len == 0 {
3584 continue;
3585 }
3586
3587 let text = match indent.kind {
3588 IndentKind::Space => " ".repeat(indent.len as usize),
3589 IndentKind::Tab => "\t".repeat(indent.len as usize),
3590 };
3591 let point = Point::new(row.0, 0);
3592 indent_edits.push((point..point, text));
3593 }
3594 }
3595 editor.edit(indent_edits, cx);
3596 });
3597 }
3598
3599 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3600 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3601 original_indent_columns: Vec::new(),
3602 });
3603 self.insert_with_autoindent_mode(text, autoindent, cx);
3604 }
3605
3606 fn insert_with_autoindent_mode(
3607 &mut self,
3608 text: &str,
3609 autoindent_mode: Option<AutoindentMode>,
3610 cx: &mut ViewContext<Self>,
3611 ) {
3612 if self.read_only(cx) {
3613 return;
3614 }
3615
3616 let text: Arc<str> = text.into();
3617 self.transact(cx, |this, cx| {
3618 let old_selections = this.selections.all_adjusted(cx);
3619 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3620 let anchors = {
3621 let snapshot = buffer.read(cx);
3622 old_selections
3623 .iter()
3624 .map(|s| {
3625 let anchor = snapshot.anchor_after(s.head());
3626 s.map(|_| anchor)
3627 })
3628 .collect::<Vec<_>>()
3629 };
3630 buffer.edit(
3631 old_selections
3632 .iter()
3633 .map(|s| (s.start..s.end, text.clone())),
3634 autoindent_mode,
3635 cx,
3636 );
3637 anchors
3638 });
3639
3640 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3641 s.select_anchors(selection_anchors);
3642 })
3643 });
3644 }
3645
3646 fn trigger_completion_on_input(
3647 &mut self,
3648 text: &str,
3649 trigger_in_words: bool,
3650 cx: &mut ViewContext<Self>,
3651 ) {
3652 if self.is_completion_trigger(text, trigger_in_words, cx) {
3653 self.show_completions(
3654 &ShowCompletions {
3655 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3656 },
3657 cx,
3658 );
3659 } else {
3660 self.hide_context_menu(cx);
3661 }
3662 }
3663
3664 fn is_completion_trigger(
3665 &self,
3666 text: &str,
3667 trigger_in_words: bool,
3668 cx: &mut ViewContext<Self>,
3669 ) -> bool {
3670 let position = self.selections.newest_anchor().head();
3671 let multibuffer = self.buffer.read(cx);
3672 let Some(buffer) = position
3673 .buffer_id
3674 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3675 else {
3676 return false;
3677 };
3678
3679 if let Some(completion_provider) = &self.completion_provider {
3680 completion_provider.is_completion_trigger(
3681 &buffer,
3682 position.text_anchor,
3683 text,
3684 trigger_in_words,
3685 cx,
3686 )
3687 } else {
3688 false
3689 }
3690 }
3691
3692 /// If any empty selections is touching the start of its innermost containing autoclose
3693 /// region, expand it to select the brackets.
3694 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3695 let selections = self.selections.all::<usize>(cx);
3696 let buffer = self.buffer.read(cx).read(cx);
3697 let new_selections = self
3698 .selections_with_autoclose_regions(selections, &buffer)
3699 .map(|(mut selection, region)| {
3700 if !selection.is_empty() {
3701 return selection;
3702 }
3703
3704 if let Some(region) = region {
3705 let mut range = region.range.to_offset(&buffer);
3706 if selection.start == range.start && range.start >= region.pair.start.len() {
3707 range.start -= region.pair.start.len();
3708 if buffer.contains_str_at(range.start, ®ion.pair.start)
3709 && buffer.contains_str_at(range.end, ®ion.pair.end)
3710 {
3711 range.end += region.pair.end.len();
3712 selection.start = range.start;
3713 selection.end = range.end;
3714
3715 return selection;
3716 }
3717 }
3718 }
3719
3720 let always_treat_brackets_as_autoclosed = buffer
3721 .settings_at(selection.start, cx)
3722 .always_treat_brackets_as_autoclosed;
3723
3724 if !always_treat_brackets_as_autoclosed {
3725 return selection;
3726 }
3727
3728 if let Some(scope) = buffer.language_scope_at(selection.start) {
3729 for (pair, enabled) in scope.brackets() {
3730 if !enabled || !pair.close {
3731 continue;
3732 }
3733
3734 if buffer.contains_str_at(selection.start, &pair.end) {
3735 let pair_start_len = pair.start.len();
3736 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3737 {
3738 selection.start -= pair_start_len;
3739 selection.end += pair.end.len();
3740
3741 return selection;
3742 }
3743 }
3744 }
3745 }
3746
3747 selection
3748 })
3749 .collect();
3750
3751 drop(buffer);
3752 self.change_selections(None, cx, |selections| selections.select(new_selections));
3753 }
3754
3755 /// Iterate the given selections, and for each one, find the smallest surrounding
3756 /// autoclose region. This uses the ordering of the selections and the autoclose
3757 /// regions to avoid repeated comparisons.
3758 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3759 &'a self,
3760 selections: impl IntoIterator<Item = Selection<D>>,
3761 buffer: &'a MultiBufferSnapshot,
3762 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3763 let mut i = 0;
3764 let mut regions = self.autoclose_regions.as_slice();
3765 selections.into_iter().map(move |selection| {
3766 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3767
3768 let mut enclosing = None;
3769 while let Some(pair_state) = regions.get(i) {
3770 if pair_state.range.end.to_offset(buffer) < range.start {
3771 regions = ®ions[i + 1..];
3772 i = 0;
3773 } else if pair_state.range.start.to_offset(buffer) > range.end {
3774 break;
3775 } else {
3776 if pair_state.selection_id == selection.id {
3777 enclosing = Some(pair_state);
3778 }
3779 i += 1;
3780 }
3781 }
3782
3783 (selection.clone(), enclosing)
3784 })
3785 }
3786
3787 /// Remove any autoclose regions that no longer contain their selection.
3788 fn invalidate_autoclose_regions(
3789 &mut self,
3790 mut selections: &[Selection<Anchor>],
3791 buffer: &MultiBufferSnapshot,
3792 ) {
3793 self.autoclose_regions.retain(|state| {
3794 let mut i = 0;
3795 while let Some(selection) = selections.get(i) {
3796 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3797 selections = &selections[1..];
3798 continue;
3799 }
3800 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3801 break;
3802 }
3803 if selection.id == state.selection_id {
3804 return true;
3805 } else {
3806 i += 1;
3807 }
3808 }
3809 false
3810 });
3811 }
3812
3813 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3814 let offset = position.to_offset(buffer);
3815 let (word_range, kind) = buffer.surrounding_word(offset);
3816 if offset > word_range.start && kind == Some(CharKind::Word) {
3817 Some(
3818 buffer
3819 .text_for_range(word_range.start..offset)
3820 .collect::<String>(),
3821 )
3822 } else {
3823 None
3824 }
3825 }
3826
3827 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3828 self.refresh_inlay_hints(
3829 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3830 cx,
3831 );
3832 }
3833
3834 pub fn inlay_hints_enabled(&self) -> bool {
3835 self.inlay_hint_cache.enabled
3836 }
3837
3838 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3839 if self.project.is_none() || self.mode != EditorMode::Full {
3840 return;
3841 }
3842
3843 let reason_description = reason.description();
3844 let ignore_debounce = matches!(
3845 reason,
3846 InlayHintRefreshReason::SettingsChange(_)
3847 | InlayHintRefreshReason::Toggle(_)
3848 | InlayHintRefreshReason::ExcerptsRemoved(_)
3849 );
3850 let (invalidate_cache, required_languages) = match reason {
3851 InlayHintRefreshReason::Toggle(enabled) => {
3852 self.inlay_hint_cache.enabled = enabled;
3853 if enabled {
3854 (InvalidationStrategy::RefreshRequested, None)
3855 } else {
3856 self.inlay_hint_cache.clear();
3857 self.splice_inlays(
3858 self.visible_inlay_hints(cx)
3859 .iter()
3860 .map(|inlay| inlay.id)
3861 .collect(),
3862 Vec::new(),
3863 cx,
3864 );
3865 return;
3866 }
3867 }
3868 InlayHintRefreshReason::SettingsChange(new_settings) => {
3869 match self.inlay_hint_cache.update_settings(
3870 &self.buffer,
3871 new_settings,
3872 self.visible_inlay_hints(cx),
3873 cx,
3874 ) {
3875 ControlFlow::Break(Some(InlaySplice {
3876 to_remove,
3877 to_insert,
3878 })) => {
3879 self.splice_inlays(to_remove, to_insert, cx);
3880 return;
3881 }
3882 ControlFlow::Break(None) => return,
3883 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3884 }
3885 }
3886 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3887 if let Some(InlaySplice {
3888 to_remove,
3889 to_insert,
3890 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3891 {
3892 self.splice_inlays(to_remove, to_insert, cx);
3893 }
3894 return;
3895 }
3896 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3897 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3898 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3899 }
3900 InlayHintRefreshReason::RefreshRequested => {
3901 (InvalidationStrategy::RefreshRequested, None)
3902 }
3903 };
3904
3905 if let Some(InlaySplice {
3906 to_remove,
3907 to_insert,
3908 }) = self.inlay_hint_cache.spawn_hint_refresh(
3909 reason_description,
3910 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3911 invalidate_cache,
3912 ignore_debounce,
3913 cx,
3914 ) {
3915 self.splice_inlays(to_remove, to_insert, cx);
3916 }
3917 }
3918
3919 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3920 self.display_map
3921 .read(cx)
3922 .current_inlays()
3923 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3924 .cloned()
3925 .collect()
3926 }
3927
3928 pub fn excerpts_for_inlay_hints_query(
3929 &self,
3930 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3931 cx: &mut ViewContext<Editor>,
3932 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3933 let Some(project) = self.project.as_ref() else {
3934 return HashMap::default();
3935 };
3936 let project = project.read(cx);
3937 let multi_buffer = self.buffer().read(cx);
3938 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3939 let multi_buffer_visible_start = self
3940 .scroll_manager
3941 .anchor()
3942 .anchor
3943 .to_point(&multi_buffer_snapshot);
3944 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3945 multi_buffer_visible_start
3946 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3947 Bias::Left,
3948 );
3949 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3950 multi_buffer
3951 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3952 .into_iter()
3953 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3954 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3955 let buffer = buffer_handle.read(cx);
3956 let buffer_file = project::File::from_dyn(buffer.file())?;
3957 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3958 let worktree_entry = buffer_worktree
3959 .read(cx)
3960 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3961 if worktree_entry.is_ignored {
3962 return None;
3963 }
3964
3965 let language = buffer.language()?;
3966 if let Some(restrict_to_languages) = restrict_to_languages {
3967 if !restrict_to_languages.contains(language) {
3968 return None;
3969 }
3970 }
3971 Some((
3972 excerpt_id,
3973 (
3974 buffer_handle,
3975 buffer.version().clone(),
3976 excerpt_visible_range,
3977 ),
3978 ))
3979 })
3980 .collect()
3981 }
3982
3983 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3984 TextLayoutDetails {
3985 text_system: cx.text_system().clone(),
3986 editor_style: self.style.clone().unwrap(),
3987 rem_size: cx.rem_size(),
3988 scroll_anchor: self.scroll_manager.anchor(),
3989 visible_rows: self.visible_line_count(),
3990 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3991 }
3992 }
3993
3994 fn splice_inlays(
3995 &self,
3996 to_remove: Vec<InlayId>,
3997 to_insert: Vec<Inlay>,
3998 cx: &mut ViewContext<Self>,
3999 ) {
4000 self.display_map.update(cx, |display_map, cx| {
4001 display_map.splice_inlays(to_remove, to_insert, cx);
4002 });
4003 cx.notify();
4004 }
4005
4006 fn trigger_on_type_formatting(
4007 &self,
4008 input: String,
4009 cx: &mut ViewContext<Self>,
4010 ) -> Option<Task<Result<()>>> {
4011 if input.len() != 1 {
4012 return None;
4013 }
4014
4015 let project = self.project.as_ref()?;
4016 let position = self.selections.newest_anchor().head();
4017 let (buffer, buffer_position) = self
4018 .buffer
4019 .read(cx)
4020 .text_anchor_for_position(position, cx)?;
4021
4022 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4023 // hence we do LSP request & edit on host side only — add formats to host's history.
4024 let push_to_lsp_host_history = true;
4025 // If this is not the host, append its history with new edits.
4026 let push_to_client_history = project.read(cx).is_remote();
4027
4028 let on_type_formatting = project.update(cx, |project, cx| {
4029 project.on_type_format(
4030 buffer.clone(),
4031 buffer_position,
4032 input,
4033 push_to_lsp_host_history,
4034 cx,
4035 )
4036 });
4037 Some(cx.spawn(|editor, mut cx| async move {
4038 if let Some(transaction) = on_type_formatting.await? {
4039 if push_to_client_history {
4040 buffer
4041 .update(&mut cx, |buffer, _| {
4042 buffer.push_transaction(transaction, Instant::now());
4043 })
4044 .ok();
4045 }
4046 editor.update(&mut cx, |editor, cx| {
4047 editor.refresh_document_highlights(cx);
4048 })?;
4049 }
4050 Ok(())
4051 }))
4052 }
4053
4054 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4055 if self.pending_rename.is_some() {
4056 return;
4057 }
4058
4059 let Some(provider) = self.completion_provider.as_ref() else {
4060 return;
4061 };
4062
4063 let position = self.selections.newest_anchor().head();
4064 let (buffer, buffer_position) =
4065 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4066 output
4067 } else {
4068 return;
4069 };
4070
4071 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4072 let is_followup_invoke = {
4073 let context_menu_state = self.context_menu.read();
4074 matches!(
4075 context_menu_state.deref(),
4076 Some(ContextMenu::Completions(_))
4077 )
4078 };
4079 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4080 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4081 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(&trigger) => {
4082 CompletionTriggerKind::TRIGGER_CHARACTER
4083 }
4084
4085 _ => CompletionTriggerKind::INVOKED,
4086 };
4087 let completion_context = CompletionContext {
4088 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4089 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4090 Some(String::from(trigger))
4091 } else {
4092 None
4093 }
4094 }),
4095 trigger_kind,
4096 };
4097 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4098
4099 let id = post_inc(&mut self.next_completion_id);
4100 let task = cx.spawn(|this, mut cx| {
4101 async move {
4102 this.update(&mut cx, |this, _| {
4103 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4104 })?;
4105 let completions = completions.await.log_err();
4106 let menu = if let Some(completions) = completions {
4107 let mut menu = CompletionsMenu {
4108 id,
4109 initial_position: position,
4110 match_candidates: completions
4111 .iter()
4112 .enumerate()
4113 .map(|(id, completion)| {
4114 StringMatchCandidate::new(
4115 id,
4116 completion.label.text[completion.label.filter_range.clone()]
4117 .into(),
4118 )
4119 })
4120 .collect(),
4121 buffer: buffer.clone(),
4122 completions: Arc::new(RwLock::new(completions.into())),
4123 matches: Vec::new().into(),
4124 selected_item: 0,
4125 scroll_handle: UniformListScrollHandle::new(),
4126 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4127 DebouncedDelay::new(),
4128 )),
4129 };
4130 menu.filter(query.as_deref(), cx.background_executor().clone())
4131 .await;
4132
4133 if menu.matches.is_empty() {
4134 None
4135 } else {
4136 this.update(&mut cx, |editor, cx| {
4137 let completions = menu.completions.clone();
4138 let matches = menu.matches.clone();
4139
4140 let delay_ms = EditorSettings::get_global(cx)
4141 .completion_documentation_secondary_query_debounce;
4142 let delay = Duration::from_millis(delay_ms);
4143 editor
4144 .completion_documentation_pre_resolve_debounce
4145 .fire_new(delay, cx, |editor, cx| {
4146 CompletionsMenu::pre_resolve_completion_documentation(
4147 buffer,
4148 completions,
4149 matches,
4150 editor,
4151 cx,
4152 )
4153 });
4154 })
4155 .ok();
4156 Some(menu)
4157 }
4158 } else {
4159 None
4160 };
4161
4162 this.update(&mut cx, |this, cx| {
4163 let mut context_menu = this.context_menu.write();
4164 match context_menu.as_ref() {
4165 None => {}
4166
4167 Some(ContextMenu::Completions(prev_menu)) => {
4168 if prev_menu.id > id {
4169 return;
4170 }
4171 }
4172
4173 _ => return,
4174 }
4175
4176 if this.focus_handle.is_focused(cx) && menu.is_some() {
4177 let menu = menu.unwrap();
4178 *context_menu = Some(ContextMenu::Completions(menu));
4179 drop(context_menu);
4180 this.discard_inline_completion(false, cx);
4181 cx.notify();
4182 } else if this.completion_tasks.len() <= 1 {
4183 // If there are no more completion tasks and the last menu was
4184 // empty, we should hide it. If it was already hidden, we should
4185 // also show the copilot completion when available.
4186 drop(context_menu);
4187 if this.hide_context_menu(cx).is_none() {
4188 this.update_visible_inline_completion(cx);
4189 }
4190 }
4191 })?;
4192
4193 Ok::<_, anyhow::Error>(())
4194 }
4195 .log_err()
4196 });
4197
4198 self.completion_tasks.push((id, task));
4199 }
4200
4201 pub fn confirm_completion(
4202 &mut self,
4203 action: &ConfirmCompletion,
4204 cx: &mut ViewContext<Self>,
4205 ) -> Option<Task<Result<()>>> {
4206 use language::ToOffset as _;
4207
4208 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4209 menu
4210 } else {
4211 return None;
4212 };
4213
4214 let mat = completions_menu
4215 .matches
4216 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
4217 let buffer_handle = completions_menu.buffer;
4218 let completions = completions_menu.completions.read();
4219 let completion = completions.get(mat.candidate_id)?;
4220 cx.stop_propagation();
4221
4222 let snippet;
4223 let text;
4224
4225 if completion.is_snippet() {
4226 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4227 text = snippet.as_ref().unwrap().text.clone();
4228 } else {
4229 snippet = None;
4230 text = completion.new_text.clone();
4231 };
4232 let selections = self.selections.all::<usize>(cx);
4233 let buffer = buffer_handle.read(cx);
4234 let old_range = completion.old_range.to_offset(buffer);
4235 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4236
4237 let newest_selection = self.selections.newest_anchor();
4238 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4239 return None;
4240 }
4241
4242 let lookbehind = newest_selection
4243 .start
4244 .text_anchor
4245 .to_offset(buffer)
4246 .saturating_sub(old_range.start);
4247 let lookahead = old_range
4248 .end
4249 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4250 let mut common_prefix_len = old_text
4251 .bytes()
4252 .zip(text.bytes())
4253 .take_while(|(a, b)| a == b)
4254 .count();
4255
4256 let snapshot = self.buffer.read(cx).snapshot(cx);
4257 let mut range_to_replace: Option<Range<isize>> = None;
4258 let mut ranges = Vec::new();
4259 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4260 for selection in &selections {
4261 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4262 let start = selection.start.saturating_sub(lookbehind);
4263 let end = selection.end + lookahead;
4264 if selection.id == newest_selection.id {
4265 range_to_replace = Some(
4266 ((start + common_prefix_len) as isize - selection.start as isize)
4267 ..(end as isize - selection.start as isize),
4268 );
4269 }
4270 ranges.push(start + common_prefix_len..end);
4271 } else {
4272 common_prefix_len = 0;
4273 ranges.clear();
4274 ranges.extend(selections.iter().map(|s| {
4275 if s.id == newest_selection.id {
4276 range_to_replace = Some(
4277 old_range.start.to_offset_utf16(&snapshot).0 as isize
4278 - selection.start as isize
4279 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4280 - selection.start as isize,
4281 );
4282 old_range.clone()
4283 } else {
4284 s.start..s.end
4285 }
4286 }));
4287 break;
4288 }
4289 if !self.linked_edit_ranges.is_empty() {
4290 let start_anchor = snapshot.anchor_before(selection.head());
4291 let end_anchor = snapshot.anchor_after(selection.tail());
4292 if let Some(ranges) = self
4293 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4294 {
4295 for (buffer, edits) in ranges {
4296 linked_edits.entry(buffer.clone()).or_default().extend(
4297 edits
4298 .into_iter()
4299 .map(|range| (range, text[common_prefix_len..].to_owned())),
4300 );
4301 }
4302 }
4303 }
4304 }
4305 let text = &text[common_prefix_len..];
4306
4307 cx.emit(EditorEvent::InputHandled {
4308 utf16_range_to_replace: range_to_replace,
4309 text: text.into(),
4310 });
4311
4312 self.transact(cx, |this, cx| {
4313 if let Some(mut snippet) = snippet {
4314 snippet.text = text.to_string();
4315 for tabstop in snippet.tabstops.iter_mut().flatten() {
4316 tabstop.start -= common_prefix_len as isize;
4317 tabstop.end -= common_prefix_len as isize;
4318 }
4319
4320 this.insert_snippet(&ranges, snippet, cx).log_err();
4321 } else {
4322 this.buffer.update(cx, |buffer, cx| {
4323 buffer.edit(
4324 ranges.iter().map(|range| (range.clone(), text)),
4325 this.autoindent_mode.clone(),
4326 cx,
4327 );
4328 });
4329 }
4330 for (buffer, edits) in linked_edits {
4331 buffer.update(cx, |buffer, cx| {
4332 let snapshot = buffer.snapshot();
4333 let edits = edits
4334 .into_iter()
4335 .map(|(range, text)| {
4336 use text::ToPoint as TP;
4337 let end_point = TP::to_point(&range.end, &snapshot);
4338 let start_point = TP::to_point(&range.start, &snapshot);
4339 (start_point..end_point, text)
4340 })
4341 .sorted_by_key(|(range, _)| range.start)
4342 .collect::<Vec<_>>();
4343 buffer.edit(edits, None, cx);
4344 })
4345 }
4346
4347 this.refresh_inline_completion(true, cx);
4348 });
4349
4350 if let Some(confirm) = completion.confirm.as_ref() {
4351 (confirm)(cx);
4352 }
4353
4354 if completion.show_new_completions_on_confirm {
4355 self.show_completions(&ShowCompletions { trigger: None }, cx);
4356 }
4357
4358 let provider = self.completion_provider.as_ref()?;
4359 let apply_edits = provider.apply_additional_edits_for_completion(
4360 buffer_handle,
4361 completion.clone(),
4362 true,
4363 cx,
4364 );
4365
4366 let editor_settings = EditorSettings::get_global(cx);
4367 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4368 // After the code completion is finished, users often want to know what signatures are needed.
4369 // so we should automatically call signature_help
4370 self.show_signature_help(&ShowSignatureHelp, cx);
4371 }
4372
4373 Some(cx.foreground_executor().spawn(async move {
4374 apply_edits.await?;
4375 Ok(())
4376 }))
4377 }
4378
4379 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4380 let mut context_menu = self.context_menu.write();
4381 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4382 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4383 // Toggle if we're selecting the same one
4384 *context_menu = None;
4385 cx.notify();
4386 return;
4387 } else {
4388 // Otherwise, clear it and start a new one
4389 *context_menu = None;
4390 cx.notify();
4391 }
4392 }
4393 drop(context_menu);
4394 let snapshot = self.snapshot(cx);
4395 let deployed_from_indicator = action.deployed_from_indicator;
4396 let mut task = self.code_actions_task.take();
4397 let action = action.clone();
4398 cx.spawn(|editor, mut cx| async move {
4399 while let Some(prev_task) = task {
4400 prev_task.await;
4401 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4402 }
4403
4404 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4405 if editor.focus_handle.is_focused(cx) {
4406 let multibuffer_point = action
4407 .deployed_from_indicator
4408 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4409 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4410 let (buffer, buffer_row) = snapshot
4411 .buffer_snapshot
4412 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4413 .and_then(|(buffer_snapshot, range)| {
4414 editor
4415 .buffer
4416 .read(cx)
4417 .buffer(buffer_snapshot.remote_id())
4418 .map(|buffer| (buffer, range.start.row))
4419 })?;
4420 let (_, code_actions) = editor
4421 .available_code_actions
4422 .clone()
4423 .and_then(|(location, code_actions)| {
4424 let snapshot = location.buffer.read(cx).snapshot();
4425 let point_range = location.range.to_point(&snapshot);
4426 let point_range = point_range.start.row..=point_range.end.row;
4427 if point_range.contains(&buffer_row) {
4428 Some((location, code_actions))
4429 } else {
4430 None
4431 }
4432 })
4433 .unzip();
4434 let buffer_id = buffer.read(cx).remote_id();
4435 let tasks = editor
4436 .tasks
4437 .get(&(buffer_id, buffer_row))
4438 .map(|t| Arc::new(t.to_owned()));
4439 if tasks.is_none() && code_actions.is_none() {
4440 return None;
4441 }
4442
4443 editor.completion_tasks.clear();
4444 editor.discard_inline_completion(false, cx);
4445 let task_context =
4446 tasks
4447 .as_ref()
4448 .zip(editor.project.clone())
4449 .map(|(tasks, project)| {
4450 let position = Point::new(buffer_row, tasks.column);
4451 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4452 let location = Location {
4453 buffer: buffer.clone(),
4454 range: range_start..range_start,
4455 };
4456 // Fill in the environmental variables from the tree-sitter captures
4457 let mut captured_task_variables = TaskVariables::default();
4458 for (capture_name, value) in tasks.extra_variables.clone() {
4459 captured_task_variables.insert(
4460 task::VariableName::Custom(capture_name.into()),
4461 value.clone(),
4462 );
4463 }
4464 project.update(cx, |project, cx| {
4465 project.task_context_for_location(
4466 captured_task_variables,
4467 location,
4468 cx,
4469 )
4470 })
4471 });
4472
4473 Some(cx.spawn(|editor, mut cx| async move {
4474 let task_context = match task_context {
4475 Some(task_context) => task_context.await,
4476 None => None,
4477 };
4478 let resolved_tasks =
4479 tasks.zip(task_context).map(|(tasks, task_context)| {
4480 Arc::new(ResolvedTasks {
4481 templates: tasks
4482 .templates
4483 .iter()
4484 .filter_map(|(kind, template)| {
4485 template
4486 .resolve_task(&kind.to_id_base(), &task_context)
4487 .map(|task| (kind.clone(), task))
4488 })
4489 .collect(),
4490 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4491 multibuffer_point.row,
4492 tasks.column,
4493 )),
4494 })
4495 });
4496 let spawn_straight_away = resolved_tasks
4497 .as_ref()
4498 .map_or(false, |tasks| tasks.templates.len() == 1)
4499 && code_actions
4500 .as_ref()
4501 .map_or(true, |actions| actions.is_empty());
4502 if let Some(task) = editor
4503 .update(&mut cx, |editor, cx| {
4504 *editor.context_menu.write() =
4505 Some(ContextMenu::CodeActions(CodeActionsMenu {
4506 buffer,
4507 actions: CodeActionContents {
4508 tasks: resolved_tasks,
4509 actions: code_actions,
4510 },
4511 selected_item: Default::default(),
4512 scroll_handle: UniformListScrollHandle::default(),
4513 deployed_from_indicator,
4514 }));
4515 if spawn_straight_away {
4516 if let Some(task) = editor.confirm_code_action(
4517 &ConfirmCodeAction { item_ix: Some(0) },
4518 cx,
4519 ) {
4520 cx.notify();
4521 return task;
4522 }
4523 }
4524 cx.notify();
4525 Task::ready(Ok(()))
4526 })
4527 .ok()
4528 {
4529 task.await
4530 } else {
4531 Ok(())
4532 }
4533 }))
4534 } else {
4535 Some(Task::ready(Ok(())))
4536 }
4537 })?;
4538 if let Some(task) = spawned_test_task {
4539 task.await?;
4540 }
4541
4542 Ok::<_, anyhow::Error>(())
4543 })
4544 .detach_and_log_err(cx);
4545 }
4546
4547 pub fn confirm_code_action(
4548 &mut self,
4549 action: &ConfirmCodeAction,
4550 cx: &mut ViewContext<Self>,
4551 ) -> Option<Task<Result<()>>> {
4552 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4553 menu
4554 } else {
4555 return None;
4556 };
4557 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4558 let action = actions_menu.actions.get(action_ix)?;
4559 let title = action.label();
4560 let buffer = actions_menu.buffer;
4561 let workspace = self.workspace()?;
4562
4563 match action {
4564 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4565 workspace.update(cx, |workspace, cx| {
4566 workspace::tasks::schedule_resolved_task(
4567 workspace,
4568 task_source_kind,
4569 resolved_task,
4570 false,
4571 cx,
4572 );
4573
4574 Some(Task::ready(Ok(())))
4575 })
4576 }
4577 CodeActionsItem::CodeAction(action) => {
4578 let apply_code_actions = workspace
4579 .read(cx)
4580 .project()
4581 .clone()
4582 .update(cx, |project, cx| {
4583 project.apply_code_action(buffer, action, true, cx)
4584 });
4585 let workspace = workspace.downgrade();
4586 Some(cx.spawn(|editor, cx| async move {
4587 let project_transaction = apply_code_actions.await?;
4588 Self::open_project_transaction(
4589 &editor,
4590 workspace,
4591 project_transaction,
4592 title,
4593 cx,
4594 )
4595 .await
4596 }))
4597 }
4598 }
4599 }
4600
4601 pub async fn open_project_transaction(
4602 this: &WeakView<Editor>,
4603 workspace: WeakView<Workspace>,
4604 transaction: ProjectTransaction,
4605 title: String,
4606 mut cx: AsyncWindowContext,
4607 ) -> Result<()> {
4608 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4609
4610 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4611 cx.update(|cx| {
4612 entries.sort_unstable_by_key(|(buffer, _)| {
4613 buffer.read(cx).file().map(|f| f.path().clone())
4614 });
4615 })?;
4616
4617 // If the project transaction's edits are all contained within this editor, then
4618 // avoid opening a new editor to display them.
4619
4620 if let Some((buffer, transaction)) = entries.first() {
4621 if entries.len() == 1 {
4622 let excerpt = this.update(&mut cx, |editor, cx| {
4623 editor
4624 .buffer()
4625 .read(cx)
4626 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4627 })?;
4628 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4629 if excerpted_buffer == *buffer {
4630 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4631 let excerpt_range = excerpt_range.to_offset(buffer);
4632 buffer
4633 .edited_ranges_for_transaction::<usize>(transaction)
4634 .all(|range| {
4635 excerpt_range.start <= range.start
4636 && excerpt_range.end >= range.end
4637 })
4638 })?;
4639
4640 if all_edits_within_excerpt {
4641 return Ok(());
4642 }
4643 }
4644 }
4645 }
4646 } else {
4647 return Ok(());
4648 }
4649
4650 let mut ranges_to_highlight = Vec::new();
4651 let excerpt_buffer = cx.new_model(|cx| {
4652 let mut multibuffer =
4653 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4654 for (buffer_handle, transaction) in &entries {
4655 let buffer = buffer_handle.read(cx);
4656 ranges_to_highlight.extend(
4657 multibuffer.push_excerpts_with_context_lines(
4658 buffer_handle.clone(),
4659 buffer
4660 .edited_ranges_for_transaction::<usize>(transaction)
4661 .collect(),
4662 DEFAULT_MULTIBUFFER_CONTEXT,
4663 cx,
4664 ),
4665 );
4666 }
4667 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4668 multibuffer
4669 })?;
4670
4671 workspace.update(&mut cx, |workspace, cx| {
4672 let project = workspace.project().clone();
4673 let editor =
4674 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4675 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4676 editor.update(cx, |editor, cx| {
4677 editor.highlight_background::<Self>(
4678 &ranges_to_highlight,
4679 |theme| theme.editor_highlighted_line_background,
4680 cx,
4681 );
4682 });
4683 })?;
4684
4685 Ok(())
4686 }
4687
4688 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4689 let project = self.project.clone()?;
4690 let buffer = self.buffer.read(cx);
4691 let newest_selection = self.selections.newest_anchor().clone();
4692 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4693 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4694 if start_buffer != end_buffer {
4695 return None;
4696 }
4697
4698 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4699 cx.background_executor()
4700 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4701 .await;
4702
4703 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4704 project.code_actions(&start_buffer, start..end, cx)
4705 }) {
4706 code_actions.await
4707 } else {
4708 Vec::new()
4709 };
4710
4711 this.update(&mut cx, |this, cx| {
4712 this.available_code_actions = if actions.is_empty() {
4713 None
4714 } else {
4715 Some((
4716 Location {
4717 buffer: start_buffer,
4718 range: start..end,
4719 },
4720 actions.into(),
4721 ))
4722 };
4723 cx.notify();
4724 })
4725 .log_err();
4726 }));
4727 None
4728 }
4729
4730 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4731 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4732 self.show_git_blame_inline = false;
4733
4734 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4735 cx.background_executor().timer(delay).await;
4736
4737 this.update(&mut cx, |this, cx| {
4738 this.show_git_blame_inline = true;
4739 cx.notify();
4740 })
4741 .log_err();
4742 }));
4743 }
4744 }
4745
4746 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4747 if self.pending_rename.is_some() {
4748 return None;
4749 }
4750
4751 let project = self.project.clone()?;
4752 let buffer = self.buffer.read(cx);
4753 let newest_selection = self.selections.newest_anchor().clone();
4754 let cursor_position = newest_selection.head();
4755 let (cursor_buffer, cursor_buffer_position) =
4756 buffer.text_anchor_for_position(cursor_position, cx)?;
4757 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4758 if cursor_buffer != tail_buffer {
4759 return None;
4760 }
4761
4762 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4763 cx.background_executor()
4764 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4765 .await;
4766
4767 let highlights = if let Some(highlights) = project
4768 .update(&mut cx, |project, cx| {
4769 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4770 })
4771 .log_err()
4772 {
4773 highlights.await.log_err()
4774 } else {
4775 None
4776 };
4777
4778 if let Some(highlights) = highlights {
4779 this.update(&mut cx, |this, cx| {
4780 if this.pending_rename.is_some() {
4781 return;
4782 }
4783
4784 let buffer_id = cursor_position.buffer_id;
4785 let buffer = this.buffer.read(cx);
4786 if !buffer
4787 .text_anchor_for_position(cursor_position, cx)
4788 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4789 {
4790 return;
4791 }
4792
4793 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4794 let mut write_ranges = Vec::new();
4795 let mut read_ranges = Vec::new();
4796 for highlight in highlights {
4797 for (excerpt_id, excerpt_range) in
4798 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4799 {
4800 let start = highlight
4801 .range
4802 .start
4803 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4804 let end = highlight
4805 .range
4806 .end
4807 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4808 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4809 continue;
4810 }
4811
4812 let range = Anchor {
4813 buffer_id,
4814 excerpt_id: excerpt_id,
4815 text_anchor: start,
4816 }..Anchor {
4817 buffer_id,
4818 excerpt_id,
4819 text_anchor: end,
4820 };
4821 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4822 write_ranges.push(range);
4823 } else {
4824 read_ranges.push(range);
4825 }
4826 }
4827 }
4828
4829 this.highlight_background::<DocumentHighlightRead>(
4830 &read_ranges,
4831 |theme| theme.editor_document_highlight_read_background,
4832 cx,
4833 );
4834 this.highlight_background::<DocumentHighlightWrite>(
4835 &write_ranges,
4836 |theme| theme.editor_document_highlight_write_background,
4837 cx,
4838 );
4839 cx.notify();
4840 })
4841 .log_err();
4842 }
4843 }));
4844 None
4845 }
4846
4847 fn refresh_inline_completion(
4848 &mut self,
4849 debounce: bool,
4850 cx: &mut ViewContext<Self>,
4851 ) -> Option<()> {
4852 let provider = self.inline_completion_provider()?;
4853 let cursor = self.selections.newest_anchor().head();
4854 let (buffer, cursor_buffer_position) =
4855 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4856 if !self.show_inline_completions
4857 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4858 {
4859 self.discard_inline_completion(false, cx);
4860 return None;
4861 }
4862
4863 self.update_visible_inline_completion(cx);
4864 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4865 Some(())
4866 }
4867
4868 fn cycle_inline_completion(
4869 &mut self,
4870 direction: Direction,
4871 cx: &mut ViewContext<Self>,
4872 ) -> Option<()> {
4873 let provider = self.inline_completion_provider()?;
4874 let cursor = self.selections.newest_anchor().head();
4875 let (buffer, cursor_buffer_position) =
4876 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4877 if !self.show_inline_completions
4878 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4879 {
4880 return None;
4881 }
4882
4883 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4884 self.update_visible_inline_completion(cx);
4885
4886 Some(())
4887 }
4888
4889 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4890 if !self.has_active_inline_completion(cx) {
4891 self.refresh_inline_completion(false, cx);
4892 return;
4893 }
4894
4895 self.update_visible_inline_completion(cx);
4896 }
4897
4898 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4899 self.show_cursor_names(cx);
4900 }
4901
4902 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4903 self.show_cursor_names = true;
4904 cx.notify();
4905 cx.spawn(|this, mut cx| async move {
4906 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4907 this.update(&mut cx, |this, cx| {
4908 this.show_cursor_names = false;
4909 cx.notify()
4910 })
4911 .ok()
4912 })
4913 .detach();
4914 }
4915
4916 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4917 if self.has_active_inline_completion(cx) {
4918 self.cycle_inline_completion(Direction::Next, cx);
4919 } else {
4920 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4921 if is_copilot_disabled {
4922 cx.propagate();
4923 }
4924 }
4925 }
4926
4927 pub fn previous_inline_completion(
4928 &mut self,
4929 _: &PreviousInlineCompletion,
4930 cx: &mut ViewContext<Self>,
4931 ) {
4932 if self.has_active_inline_completion(cx) {
4933 self.cycle_inline_completion(Direction::Prev, cx);
4934 } else {
4935 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4936 if is_copilot_disabled {
4937 cx.propagate();
4938 }
4939 }
4940 }
4941
4942 pub fn accept_inline_completion(
4943 &mut self,
4944 _: &AcceptInlineCompletion,
4945 cx: &mut ViewContext<Self>,
4946 ) {
4947 let Some(completion) = self.take_active_inline_completion(cx) else {
4948 return;
4949 };
4950 if let Some(provider) = self.inline_completion_provider() {
4951 provider.accept(cx);
4952 }
4953
4954 cx.emit(EditorEvent::InputHandled {
4955 utf16_range_to_replace: None,
4956 text: completion.text.to_string().into(),
4957 });
4958 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4959 self.refresh_inline_completion(true, cx);
4960 cx.notify();
4961 }
4962
4963 pub fn accept_partial_inline_completion(
4964 &mut self,
4965 _: &AcceptPartialInlineCompletion,
4966 cx: &mut ViewContext<Self>,
4967 ) {
4968 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4969 if let Some(completion) = self.take_active_inline_completion(cx) {
4970 let mut partial_completion = completion
4971 .text
4972 .chars()
4973 .by_ref()
4974 .take_while(|c| c.is_alphabetic())
4975 .collect::<String>();
4976 if partial_completion.is_empty() {
4977 partial_completion = completion
4978 .text
4979 .chars()
4980 .by_ref()
4981 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4982 .collect::<String>();
4983 }
4984
4985 cx.emit(EditorEvent::InputHandled {
4986 utf16_range_to_replace: None,
4987 text: partial_completion.clone().into(),
4988 });
4989 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4990 self.refresh_inline_completion(true, cx);
4991 cx.notify();
4992 }
4993 }
4994 }
4995
4996 fn discard_inline_completion(
4997 &mut self,
4998 should_report_inline_completion_event: bool,
4999 cx: &mut ViewContext<Self>,
5000 ) -> bool {
5001 if let Some(provider) = self.inline_completion_provider() {
5002 provider.discard(should_report_inline_completion_event, cx);
5003 }
5004
5005 self.take_active_inline_completion(cx).is_some()
5006 }
5007
5008 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5009 if let Some(completion) = self.active_inline_completion.as_ref() {
5010 let buffer = self.buffer.read(cx).read(cx);
5011 completion.position.is_valid(&buffer)
5012 } else {
5013 false
5014 }
5015 }
5016
5017 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
5018 let completion = self.active_inline_completion.take()?;
5019 self.display_map.update(cx, |map, cx| {
5020 map.splice_inlays(vec![completion.id], Default::default(), cx);
5021 });
5022 let buffer = self.buffer.read(cx).read(cx);
5023
5024 if completion.position.is_valid(&buffer) {
5025 Some(completion)
5026 } else {
5027 None
5028 }
5029 }
5030
5031 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5032 let selection = self.selections.newest_anchor();
5033 let cursor = selection.head();
5034
5035 if self.context_menu.read().is_none()
5036 && self.completion_tasks.is_empty()
5037 && selection.start == selection.end
5038 {
5039 if let Some(provider) = self.inline_completion_provider() {
5040 if let Some((buffer, cursor_buffer_position)) =
5041 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5042 {
5043 if let Some(text) =
5044 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5045 {
5046 let text = Rope::from(text);
5047 let mut to_remove = Vec::new();
5048 if let Some(completion) = self.active_inline_completion.take() {
5049 to_remove.push(completion.id);
5050 }
5051
5052 let completion_inlay =
5053 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
5054 self.active_inline_completion = Some(completion_inlay.clone());
5055 self.display_map.update(cx, move |map, cx| {
5056 map.splice_inlays(to_remove, vec![completion_inlay], cx)
5057 });
5058 cx.notify();
5059 return;
5060 }
5061 }
5062 }
5063 }
5064
5065 self.discard_inline_completion(false, cx);
5066 }
5067
5068 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5069 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5070 }
5071
5072 fn render_code_actions_indicator(
5073 &self,
5074 _style: &EditorStyle,
5075 row: DisplayRow,
5076 is_active: bool,
5077 cx: &mut ViewContext<Self>,
5078 ) -> Option<IconButton> {
5079 if self.available_code_actions.is_some() {
5080 Some(
5081 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5082 .shape(ui::IconButtonShape::Square)
5083 .icon_size(IconSize::XSmall)
5084 .icon_color(Color::Muted)
5085 .selected(is_active)
5086 .on_click(cx.listener(move |editor, _e, cx| {
5087 editor.focus(cx);
5088 editor.toggle_code_actions(
5089 &ToggleCodeActions {
5090 deployed_from_indicator: Some(row),
5091 },
5092 cx,
5093 );
5094 })),
5095 )
5096 } else {
5097 None
5098 }
5099 }
5100
5101 fn clear_tasks(&mut self) {
5102 self.tasks.clear()
5103 }
5104
5105 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5106 if let Some(_) = self.tasks.insert(key, value) {
5107 // This case should hopefully be rare, but just in case...
5108 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5109 }
5110 }
5111
5112 fn render_run_indicator(
5113 &self,
5114 _style: &EditorStyle,
5115 is_active: bool,
5116 row: DisplayRow,
5117 cx: &mut ViewContext<Self>,
5118 ) -> IconButton {
5119 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5120 .shape(ui::IconButtonShape::Square)
5121 .icon_size(IconSize::XSmall)
5122 .icon_color(Color::Muted)
5123 .selected(is_active)
5124 .on_click(cx.listener(move |editor, _e, cx| {
5125 editor.focus(cx);
5126 editor.toggle_code_actions(
5127 &ToggleCodeActions {
5128 deployed_from_indicator: Some(row),
5129 },
5130 cx,
5131 );
5132 }))
5133 }
5134
5135 fn render_close_hunk_diff_button(
5136 &self,
5137 hunk: HoveredHunk,
5138 row: DisplayRow,
5139 cx: &mut ViewContext<Self>,
5140 ) -> IconButton {
5141 IconButton::new(
5142 ("close_hunk_diff_indicator", row.0 as usize),
5143 ui::IconName::Close,
5144 )
5145 .shape(ui::IconButtonShape::Square)
5146 .icon_size(IconSize::XSmall)
5147 .icon_color(Color::Muted)
5148 .tooltip(|cx| Tooltip::for_action("Close hunk diff", &ToggleHunkDiff, cx))
5149 .on_click(cx.listener(move |editor, _e, cx| editor.toggle_hovered_hunk(&hunk, cx)))
5150 }
5151
5152 pub fn context_menu_visible(&self) -> bool {
5153 self.context_menu
5154 .read()
5155 .as_ref()
5156 .map_or(false, |menu| menu.visible())
5157 }
5158
5159 fn render_context_menu(
5160 &self,
5161 cursor_position: DisplayPoint,
5162 style: &EditorStyle,
5163 max_height: Pixels,
5164 cx: &mut ViewContext<Editor>,
5165 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5166 self.context_menu.read().as_ref().map(|menu| {
5167 menu.render(
5168 cursor_position,
5169 style,
5170 max_height,
5171 self.workspace.as_ref().map(|(w, _)| w.clone()),
5172 cx,
5173 )
5174 })
5175 }
5176
5177 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5178 cx.notify();
5179 self.completion_tasks.clear();
5180 let context_menu = self.context_menu.write().take();
5181 if context_menu.is_some() {
5182 self.update_visible_inline_completion(cx);
5183 }
5184 context_menu
5185 }
5186
5187 pub fn insert_snippet(
5188 &mut self,
5189 insertion_ranges: &[Range<usize>],
5190 snippet: Snippet,
5191 cx: &mut ViewContext<Self>,
5192 ) -> Result<()> {
5193 struct Tabstop<T> {
5194 is_end_tabstop: bool,
5195 ranges: Vec<Range<T>>,
5196 }
5197
5198 let tabstops = self.buffer.update(cx, |buffer, cx| {
5199 let snippet_text: Arc<str> = snippet.text.clone().into();
5200 buffer.edit(
5201 insertion_ranges
5202 .iter()
5203 .cloned()
5204 .map(|range| (range, snippet_text.clone())),
5205 Some(AutoindentMode::EachLine),
5206 cx,
5207 );
5208
5209 let snapshot = &*buffer.read(cx);
5210 let snippet = &snippet;
5211 snippet
5212 .tabstops
5213 .iter()
5214 .map(|tabstop| {
5215 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5216 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5217 });
5218 let mut tabstop_ranges = tabstop
5219 .iter()
5220 .flat_map(|tabstop_range| {
5221 let mut delta = 0_isize;
5222 insertion_ranges.iter().map(move |insertion_range| {
5223 let insertion_start = insertion_range.start as isize + delta;
5224 delta +=
5225 snippet.text.len() as isize - insertion_range.len() as isize;
5226
5227 let start = ((insertion_start + tabstop_range.start) as usize)
5228 .min(snapshot.len());
5229 let end = ((insertion_start + tabstop_range.end) as usize)
5230 .min(snapshot.len());
5231 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5232 })
5233 })
5234 .collect::<Vec<_>>();
5235 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5236
5237 Tabstop {
5238 is_end_tabstop,
5239 ranges: tabstop_ranges,
5240 }
5241 })
5242 .collect::<Vec<_>>()
5243 });
5244 if let Some(tabstop) = tabstops.first() {
5245 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5246 s.select_ranges(tabstop.ranges.iter().cloned());
5247 });
5248
5249 // If we're already at the last tabstop and it's at the end of the snippet,
5250 // we're done, we don't need to keep the state around.
5251 if !tabstop.is_end_tabstop {
5252 let ranges = tabstops
5253 .into_iter()
5254 .map(|tabstop| tabstop.ranges)
5255 .collect::<Vec<_>>();
5256 self.snippet_stack.push(SnippetState {
5257 active_index: 0,
5258 ranges,
5259 });
5260 }
5261
5262 // Check whether the just-entered snippet ends with an auto-closable bracket.
5263 if self.autoclose_regions.is_empty() {
5264 let snapshot = self.buffer.read(cx).snapshot(cx);
5265 for selection in &mut self.selections.all::<Point>(cx) {
5266 let selection_head = selection.head();
5267 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5268 continue;
5269 };
5270
5271 let mut bracket_pair = None;
5272 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5273 let prev_chars = snapshot
5274 .reversed_chars_at(selection_head)
5275 .collect::<String>();
5276 for (pair, enabled) in scope.brackets() {
5277 if enabled
5278 && pair.close
5279 && prev_chars.starts_with(pair.start.as_str())
5280 && next_chars.starts_with(pair.end.as_str())
5281 {
5282 bracket_pair = Some(pair.clone());
5283 break;
5284 }
5285 }
5286 if let Some(pair) = bracket_pair {
5287 let start = snapshot.anchor_after(selection_head);
5288 let end = snapshot.anchor_after(selection_head);
5289 self.autoclose_regions.push(AutocloseRegion {
5290 selection_id: selection.id,
5291 range: start..end,
5292 pair,
5293 });
5294 }
5295 }
5296 }
5297 }
5298 Ok(())
5299 }
5300
5301 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5302 self.move_to_snippet_tabstop(Bias::Right, cx)
5303 }
5304
5305 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5306 self.move_to_snippet_tabstop(Bias::Left, cx)
5307 }
5308
5309 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5310 if let Some(mut snippet) = self.snippet_stack.pop() {
5311 match bias {
5312 Bias::Left => {
5313 if snippet.active_index > 0 {
5314 snippet.active_index -= 1;
5315 } else {
5316 self.snippet_stack.push(snippet);
5317 return false;
5318 }
5319 }
5320 Bias::Right => {
5321 if snippet.active_index + 1 < snippet.ranges.len() {
5322 snippet.active_index += 1;
5323 } else {
5324 self.snippet_stack.push(snippet);
5325 return false;
5326 }
5327 }
5328 }
5329 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5330 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5331 s.select_anchor_ranges(current_ranges.iter().cloned())
5332 });
5333 // If snippet state is not at the last tabstop, push it back on the stack
5334 if snippet.active_index + 1 < snippet.ranges.len() {
5335 self.snippet_stack.push(snippet);
5336 }
5337 return true;
5338 }
5339 }
5340
5341 false
5342 }
5343
5344 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5345 self.transact(cx, |this, cx| {
5346 this.select_all(&SelectAll, cx);
5347 this.insert("", cx);
5348 });
5349 }
5350
5351 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5352 self.transact(cx, |this, cx| {
5353 this.select_autoclose_pair(cx);
5354 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5355 if !this.linked_edit_ranges.is_empty() {
5356 let selections = this.selections.all::<MultiBufferPoint>(cx);
5357 let snapshot = this.buffer.read(cx).snapshot(cx);
5358
5359 for selection in selections.iter() {
5360 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5361 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5362 if selection_start.buffer_id != selection_end.buffer_id {
5363 continue;
5364 }
5365 if let Some(ranges) =
5366 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5367 {
5368 for (buffer, entries) in ranges {
5369 linked_ranges.entry(buffer).or_default().extend(entries);
5370 }
5371 }
5372 }
5373 }
5374
5375 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5376 if !this.selections.line_mode {
5377 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5378 for selection in &mut selections {
5379 if selection.is_empty() {
5380 let old_head = selection.head();
5381 let mut new_head =
5382 movement::left(&display_map, old_head.to_display_point(&display_map))
5383 .to_point(&display_map);
5384 if let Some((buffer, line_buffer_range)) = display_map
5385 .buffer_snapshot
5386 .buffer_line_for_row(MultiBufferRow(old_head.row))
5387 {
5388 let indent_size =
5389 buffer.indent_size_for_line(line_buffer_range.start.row);
5390 let indent_len = match indent_size.kind {
5391 IndentKind::Space => {
5392 buffer.settings_at(line_buffer_range.start, cx).tab_size
5393 }
5394 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5395 };
5396 if old_head.column <= indent_size.len && old_head.column > 0 {
5397 let indent_len = indent_len.get();
5398 new_head = cmp::min(
5399 new_head,
5400 MultiBufferPoint::new(
5401 old_head.row,
5402 ((old_head.column - 1) / indent_len) * indent_len,
5403 ),
5404 );
5405 }
5406 }
5407
5408 selection.set_head(new_head, SelectionGoal::None);
5409 }
5410 }
5411 }
5412
5413 this.signature_help_state.set_backspace_pressed(true);
5414 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5415 this.insert("", cx);
5416 let empty_str: Arc<str> = Arc::from("");
5417 for (buffer, edits) in linked_ranges {
5418 let snapshot = buffer.read(cx).snapshot();
5419 use text::ToPoint as TP;
5420
5421 let edits = edits
5422 .into_iter()
5423 .map(|range| {
5424 let end_point = TP::to_point(&range.end, &snapshot);
5425 let mut start_point = TP::to_point(&range.start, &snapshot);
5426
5427 if end_point == start_point {
5428 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5429 .saturating_sub(1);
5430 start_point = TP::to_point(&offset, &snapshot);
5431 };
5432
5433 (start_point..end_point, empty_str.clone())
5434 })
5435 .sorted_by_key(|(range, _)| range.start)
5436 .collect::<Vec<_>>();
5437 buffer.update(cx, |this, cx| {
5438 this.edit(edits, None, cx);
5439 })
5440 }
5441 this.refresh_inline_completion(true, cx);
5442 linked_editing_ranges::refresh_linked_ranges(this, cx);
5443 });
5444 }
5445
5446 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5447 self.transact(cx, |this, cx| {
5448 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5449 let line_mode = s.line_mode;
5450 s.move_with(|map, selection| {
5451 if selection.is_empty() && !line_mode {
5452 let cursor = movement::right(map, selection.head());
5453 selection.end = cursor;
5454 selection.reversed = true;
5455 selection.goal = SelectionGoal::None;
5456 }
5457 })
5458 });
5459 this.insert("", cx);
5460 this.refresh_inline_completion(true, cx);
5461 });
5462 }
5463
5464 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5465 if self.move_to_prev_snippet_tabstop(cx) {
5466 return;
5467 }
5468
5469 self.outdent(&Outdent, cx);
5470 }
5471
5472 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5473 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5474 return;
5475 }
5476
5477 let mut selections = self.selections.all_adjusted(cx);
5478 let buffer = self.buffer.read(cx);
5479 let snapshot = buffer.snapshot(cx);
5480 let rows_iter = selections.iter().map(|s| s.head().row);
5481 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5482
5483 let mut edits = Vec::new();
5484 let mut prev_edited_row = 0;
5485 let mut row_delta = 0;
5486 for selection in &mut selections {
5487 if selection.start.row != prev_edited_row {
5488 row_delta = 0;
5489 }
5490 prev_edited_row = selection.end.row;
5491
5492 // If the selection is non-empty, then increase the indentation of the selected lines.
5493 if !selection.is_empty() {
5494 row_delta =
5495 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5496 continue;
5497 }
5498
5499 // If the selection is empty and the cursor is in the leading whitespace before the
5500 // suggested indentation, then auto-indent the line.
5501 let cursor = selection.head();
5502 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5503 if let Some(suggested_indent) =
5504 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5505 {
5506 if cursor.column < suggested_indent.len
5507 && cursor.column <= current_indent.len
5508 && current_indent.len <= suggested_indent.len
5509 {
5510 selection.start = Point::new(cursor.row, suggested_indent.len);
5511 selection.end = selection.start;
5512 if row_delta == 0 {
5513 edits.extend(Buffer::edit_for_indent_size_adjustment(
5514 cursor.row,
5515 current_indent,
5516 suggested_indent,
5517 ));
5518 row_delta = suggested_indent.len - current_indent.len;
5519 }
5520 continue;
5521 }
5522 }
5523
5524 // Otherwise, insert a hard or soft tab.
5525 let settings = buffer.settings_at(cursor, cx);
5526 let tab_size = if settings.hard_tabs {
5527 IndentSize::tab()
5528 } else {
5529 let tab_size = settings.tab_size.get();
5530 let char_column = snapshot
5531 .text_for_range(Point::new(cursor.row, 0)..cursor)
5532 .flat_map(str::chars)
5533 .count()
5534 + row_delta as usize;
5535 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5536 IndentSize::spaces(chars_to_next_tab_stop)
5537 };
5538 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5539 selection.end = selection.start;
5540 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5541 row_delta += tab_size.len;
5542 }
5543
5544 self.transact(cx, |this, cx| {
5545 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5546 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5547 this.refresh_inline_completion(true, cx);
5548 });
5549 }
5550
5551 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5552 if self.read_only(cx) {
5553 return;
5554 }
5555 let mut selections = self.selections.all::<Point>(cx);
5556 let mut prev_edited_row = 0;
5557 let mut row_delta = 0;
5558 let mut edits = Vec::new();
5559 let buffer = self.buffer.read(cx);
5560 let snapshot = buffer.snapshot(cx);
5561 for selection in &mut selections {
5562 if selection.start.row != prev_edited_row {
5563 row_delta = 0;
5564 }
5565 prev_edited_row = selection.end.row;
5566
5567 row_delta =
5568 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5569 }
5570
5571 self.transact(cx, |this, cx| {
5572 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5573 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5574 });
5575 }
5576
5577 fn indent_selection(
5578 buffer: &MultiBuffer,
5579 snapshot: &MultiBufferSnapshot,
5580 selection: &mut Selection<Point>,
5581 edits: &mut Vec<(Range<Point>, String)>,
5582 delta_for_start_row: u32,
5583 cx: &AppContext,
5584 ) -> u32 {
5585 let settings = buffer.settings_at(selection.start, cx);
5586 let tab_size = settings.tab_size.get();
5587 let indent_kind = if settings.hard_tabs {
5588 IndentKind::Tab
5589 } else {
5590 IndentKind::Space
5591 };
5592 let mut start_row = selection.start.row;
5593 let mut end_row = selection.end.row + 1;
5594
5595 // If a selection ends at the beginning of a line, don't indent
5596 // that last line.
5597 if selection.end.column == 0 && selection.end.row > selection.start.row {
5598 end_row -= 1;
5599 }
5600
5601 // Avoid re-indenting a row that has already been indented by a
5602 // previous selection, but still update this selection's column
5603 // to reflect that indentation.
5604 if delta_for_start_row > 0 {
5605 start_row += 1;
5606 selection.start.column += delta_for_start_row;
5607 if selection.end.row == selection.start.row {
5608 selection.end.column += delta_for_start_row;
5609 }
5610 }
5611
5612 let mut delta_for_end_row = 0;
5613 let has_multiple_rows = start_row + 1 != end_row;
5614 for row in start_row..end_row {
5615 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5616 let indent_delta = match (current_indent.kind, indent_kind) {
5617 (IndentKind::Space, IndentKind::Space) => {
5618 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5619 IndentSize::spaces(columns_to_next_tab_stop)
5620 }
5621 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5622 (_, IndentKind::Tab) => IndentSize::tab(),
5623 };
5624
5625 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5626 0
5627 } else {
5628 selection.start.column
5629 };
5630 let row_start = Point::new(row, start);
5631 edits.push((
5632 row_start..row_start,
5633 indent_delta.chars().collect::<String>(),
5634 ));
5635
5636 // Update this selection's endpoints to reflect the indentation.
5637 if row == selection.start.row {
5638 selection.start.column += indent_delta.len;
5639 }
5640 if row == selection.end.row {
5641 selection.end.column += indent_delta.len;
5642 delta_for_end_row = indent_delta.len;
5643 }
5644 }
5645
5646 if selection.start.row == selection.end.row {
5647 delta_for_start_row + delta_for_end_row
5648 } else {
5649 delta_for_end_row
5650 }
5651 }
5652
5653 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5654 if self.read_only(cx) {
5655 return;
5656 }
5657 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5658 let selections = self.selections.all::<Point>(cx);
5659 let mut deletion_ranges = Vec::new();
5660 let mut last_outdent = None;
5661 {
5662 let buffer = self.buffer.read(cx);
5663 let snapshot = buffer.snapshot(cx);
5664 for selection in &selections {
5665 let settings = buffer.settings_at(selection.start, cx);
5666 let tab_size = settings.tab_size.get();
5667 let mut rows = selection.spanned_rows(false, &display_map);
5668
5669 // Avoid re-outdenting a row that has already been outdented by a
5670 // previous selection.
5671 if let Some(last_row) = last_outdent {
5672 if last_row == rows.start {
5673 rows.start = rows.start.next_row();
5674 }
5675 }
5676 let has_multiple_rows = rows.len() > 1;
5677 for row in rows.iter_rows() {
5678 let indent_size = snapshot.indent_size_for_line(row);
5679 if indent_size.len > 0 {
5680 let deletion_len = match indent_size.kind {
5681 IndentKind::Space => {
5682 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5683 if columns_to_prev_tab_stop == 0 {
5684 tab_size
5685 } else {
5686 columns_to_prev_tab_stop
5687 }
5688 }
5689 IndentKind::Tab => 1,
5690 };
5691 let start = if has_multiple_rows
5692 || deletion_len > selection.start.column
5693 || indent_size.len < selection.start.column
5694 {
5695 0
5696 } else {
5697 selection.start.column - deletion_len
5698 };
5699 deletion_ranges.push(
5700 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5701 );
5702 last_outdent = Some(row);
5703 }
5704 }
5705 }
5706 }
5707
5708 self.transact(cx, |this, cx| {
5709 this.buffer.update(cx, |buffer, cx| {
5710 let empty_str: Arc<str> = "".into();
5711 buffer.edit(
5712 deletion_ranges
5713 .into_iter()
5714 .map(|range| (range, empty_str.clone())),
5715 None,
5716 cx,
5717 );
5718 });
5719 let selections = this.selections.all::<usize>(cx);
5720 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5721 });
5722 }
5723
5724 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5725 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5726 let selections = self.selections.all::<Point>(cx);
5727
5728 let mut new_cursors = Vec::new();
5729 let mut edit_ranges = Vec::new();
5730 let mut selections = selections.iter().peekable();
5731 while let Some(selection) = selections.next() {
5732 let mut rows = selection.spanned_rows(false, &display_map);
5733 let goal_display_column = selection.head().to_display_point(&display_map).column();
5734
5735 // Accumulate contiguous regions of rows that we want to delete.
5736 while let Some(next_selection) = selections.peek() {
5737 let next_rows = next_selection.spanned_rows(false, &display_map);
5738 if next_rows.start <= rows.end {
5739 rows.end = next_rows.end;
5740 selections.next().unwrap();
5741 } else {
5742 break;
5743 }
5744 }
5745
5746 let buffer = &display_map.buffer_snapshot;
5747 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5748 let edit_end;
5749 let cursor_buffer_row;
5750 if buffer.max_point().row >= rows.end.0 {
5751 // If there's a line after the range, delete the \n from the end of the row range
5752 // and position the cursor on the next line.
5753 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5754 cursor_buffer_row = rows.end;
5755 } else {
5756 // If there isn't a line after the range, delete the \n from the line before the
5757 // start of the row range and position the cursor there.
5758 edit_start = edit_start.saturating_sub(1);
5759 edit_end = buffer.len();
5760 cursor_buffer_row = rows.start.previous_row();
5761 }
5762
5763 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5764 *cursor.column_mut() =
5765 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5766
5767 new_cursors.push((
5768 selection.id,
5769 buffer.anchor_after(cursor.to_point(&display_map)),
5770 ));
5771 edit_ranges.push(edit_start..edit_end);
5772 }
5773
5774 self.transact(cx, |this, cx| {
5775 let buffer = this.buffer.update(cx, |buffer, cx| {
5776 let empty_str: Arc<str> = "".into();
5777 buffer.edit(
5778 edit_ranges
5779 .into_iter()
5780 .map(|range| (range, empty_str.clone())),
5781 None,
5782 cx,
5783 );
5784 buffer.snapshot(cx)
5785 });
5786 let new_selections = new_cursors
5787 .into_iter()
5788 .map(|(id, cursor)| {
5789 let cursor = cursor.to_point(&buffer);
5790 Selection {
5791 id,
5792 start: cursor,
5793 end: cursor,
5794 reversed: false,
5795 goal: SelectionGoal::None,
5796 }
5797 })
5798 .collect();
5799
5800 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5801 s.select(new_selections);
5802 });
5803 });
5804 }
5805
5806 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5807 if self.read_only(cx) {
5808 return;
5809 }
5810 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5811 for selection in self.selections.all::<Point>(cx) {
5812 let start = MultiBufferRow(selection.start.row);
5813 let end = if selection.start.row == selection.end.row {
5814 MultiBufferRow(selection.start.row + 1)
5815 } else {
5816 MultiBufferRow(selection.end.row)
5817 };
5818
5819 if let Some(last_row_range) = row_ranges.last_mut() {
5820 if start <= last_row_range.end {
5821 last_row_range.end = end;
5822 continue;
5823 }
5824 }
5825 row_ranges.push(start..end);
5826 }
5827
5828 let snapshot = self.buffer.read(cx).snapshot(cx);
5829 let mut cursor_positions = Vec::new();
5830 for row_range in &row_ranges {
5831 let anchor = snapshot.anchor_before(Point::new(
5832 row_range.end.previous_row().0,
5833 snapshot.line_len(row_range.end.previous_row()),
5834 ));
5835 cursor_positions.push(anchor..anchor);
5836 }
5837
5838 self.transact(cx, |this, cx| {
5839 for row_range in row_ranges.into_iter().rev() {
5840 for row in row_range.iter_rows().rev() {
5841 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5842 let next_line_row = row.next_row();
5843 let indent = snapshot.indent_size_for_line(next_line_row);
5844 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5845
5846 let replace = if snapshot.line_len(next_line_row) > indent.len {
5847 " "
5848 } else {
5849 ""
5850 };
5851
5852 this.buffer.update(cx, |buffer, cx| {
5853 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5854 });
5855 }
5856 }
5857
5858 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5859 s.select_anchor_ranges(cursor_positions)
5860 });
5861 });
5862 }
5863
5864 pub fn sort_lines_case_sensitive(
5865 &mut self,
5866 _: &SortLinesCaseSensitive,
5867 cx: &mut ViewContext<Self>,
5868 ) {
5869 self.manipulate_lines(cx, |lines| lines.sort())
5870 }
5871
5872 pub fn sort_lines_case_insensitive(
5873 &mut self,
5874 _: &SortLinesCaseInsensitive,
5875 cx: &mut ViewContext<Self>,
5876 ) {
5877 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5878 }
5879
5880 pub fn unique_lines_case_insensitive(
5881 &mut self,
5882 _: &UniqueLinesCaseInsensitive,
5883 cx: &mut ViewContext<Self>,
5884 ) {
5885 self.manipulate_lines(cx, |lines| {
5886 let mut seen = HashSet::default();
5887 lines.retain(|line| seen.insert(line.to_lowercase()));
5888 })
5889 }
5890
5891 pub fn unique_lines_case_sensitive(
5892 &mut self,
5893 _: &UniqueLinesCaseSensitive,
5894 cx: &mut ViewContext<Self>,
5895 ) {
5896 self.manipulate_lines(cx, |lines| {
5897 let mut seen = HashSet::default();
5898 lines.retain(|line| seen.insert(*line));
5899 })
5900 }
5901
5902 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5903 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5904 if !revert_changes.is_empty() {
5905 self.transact(cx, |editor, cx| {
5906 editor.revert(revert_changes, cx);
5907 });
5908 }
5909 }
5910
5911 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5912 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5913 let project_path = buffer.read(cx).project_path(cx)?;
5914 let project = self.project.as_ref()?.read(cx);
5915 let entry = project.entry_for_path(&project_path, cx)?;
5916 let abs_path = project.absolute_path(&project_path, cx)?;
5917 let parent = if entry.is_symlink {
5918 abs_path.canonicalize().ok()?
5919 } else {
5920 abs_path
5921 }
5922 .parent()?
5923 .to_path_buf();
5924 Some(parent)
5925 }) {
5926 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5927 }
5928 }
5929
5930 fn gather_revert_changes(
5931 &mut self,
5932 selections: &[Selection<Anchor>],
5933 cx: &mut ViewContext<'_, Editor>,
5934 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5935 let mut revert_changes = HashMap::default();
5936 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
5937 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5938 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
5939 }
5940 revert_changes
5941 }
5942
5943 pub fn prepare_revert_change(
5944 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5945 multi_buffer: &Model<MultiBuffer>,
5946 hunk: &DiffHunk<MultiBufferRow>,
5947 cx: &AppContext,
5948 ) -> Option<()> {
5949 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
5950 let buffer = buffer.read(cx);
5951 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5952 let buffer_snapshot = buffer.snapshot();
5953 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5954 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5955 probe
5956 .0
5957 .start
5958 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5959 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5960 }) {
5961 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5962 Some(())
5963 } else {
5964 None
5965 }
5966 }
5967
5968 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5969 self.manipulate_lines(cx, |lines| lines.reverse())
5970 }
5971
5972 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5973 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5974 }
5975
5976 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5977 where
5978 Fn: FnMut(&mut Vec<&str>),
5979 {
5980 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5981 let buffer = self.buffer.read(cx).snapshot(cx);
5982
5983 let mut edits = Vec::new();
5984
5985 let selections = self.selections.all::<Point>(cx);
5986 let mut selections = selections.iter().peekable();
5987 let mut contiguous_row_selections = Vec::new();
5988 let mut new_selections = Vec::new();
5989 let mut added_lines = 0;
5990 let mut removed_lines = 0;
5991
5992 while let Some(selection) = selections.next() {
5993 let (start_row, end_row) = consume_contiguous_rows(
5994 &mut contiguous_row_selections,
5995 selection,
5996 &display_map,
5997 &mut selections,
5998 );
5999
6000 let start_point = Point::new(start_row.0, 0);
6001 let end_point = Point::new(
6002 end_row.previous_row().0,
6003 buffer.line_len(end_row.previous_row()),
6004 );
6005 let text = buffer
6006 .text_for_range(start_point..end_point)
6007 .collect::<String>();
6008
6009 let mut lines = text.split('\n').collect_vec();
6010
6011 let lines_before = lines.len();
6012 callback(&mut lines);
6013 let lines_after = lines.len();
6014
6015 edits.push((start_point..end_point, lines.join("\n")));
6016
6017 // Selections must change based on added and removed line count
6018 let start_row =
6019 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6020 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6021 new_selections.push(Selection {
6022 id: selection.id,
6023 start: start_row,
6024 end: end_row,
6025 goal: SelectionGoal::None,
6026 reversed: selection.reversed,
6027 });
6028
6029 if lines_after > lines_before {
6030 added_lines += lines_after - lines_before;
6031 } else if lines_before > lines_after {
6032 removed_lines += lines_before - lines_after;
6033 }
6034 }
6035
6036 self.transact(cx, |this, cx| {
6037 let buffer = this.buffer.update(cx, |buffer, cx| {
6038 buffer.edit(edits, None, cx);
6039 buffer.snapshot(cx)
6040 });
6041
6042 // Recalculate offsets on newly edited buffer
6043 let new_selections = new_selections
6044 .iter()
6045 .map(|s| {
6046 let start_point = Point::new(s.start.0, 0);
6047 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6048 Selection {
6049 id: s.id,
6050 start: buffer.point_to_offset(start_point),
6051 end: buffer.point_to_offset(end_point),
6052 goal: s.goal,
6053 reversed: s.reversed,
6054 }
6055 })
6056 .collect();
6057
6058 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6059 s.select(new_selections);
6060 });
6061
6062 this.request_autoscroll(Autoscroll::fit(), cx);
6063 });
6064 }
6065
6066 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6067 self.manipulate_text(cx, |text| text.to_uppercase())
6068 }
6069
6070 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6071 self.manipulate_text(cx, |text| text.to_lowercase())
6072 }
6073
6074 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6075 self.manipulate_text(cx, |text| {
6076 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6077 // https://github.com/rutrum/convert-case/issues/16
6078 text.split('\n')
6079 .map(|line| line.to_case(Case::Title))
6080 .join("\n")
6081 })
6082 }
6083
6084 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6085 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6086 }
6087
6088 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6089 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6090 }
6091
6092 pub fn convert_to_upper_camel_case(
6093 &mut self,
6094 _: &ConvertToUpperCamelCase,
6095 cx: &mut ViewContext<Self>,
6096 ) {
6097 self.manipulate_text(cx, |text| {
6098 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6099 // https://github.com/rutrum/convert-case/issues/16
6100 text.split('\n')
6101 .map(|line| line.to_case(Case::UpperCamel))
6102 .join("\n")
6103 })
6104 }
6105
6106 pub fn convert_to_lower_camel_case(
6107 &mut self,
6108 _: &ConvertToLowerCamelCase,
6109 cx: &mut ViewContext<Self>,
6110 ) {
6111 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6112 }
6113
6114 pub fn convert_to_opposite_case(
6115 &mut self,
6116 _: &ConvertToOppositeCase,
6117 cx: &mut ViewContext<Self>,
6118 ) {
6119 self.manipulate_text(cx, |text| {
6120 text.chars()
6121 .fold(String::with_capacity(text.len()), |mut t, c| {
6122 if c.is_uppercase() {
6123 t.extend(c.to_lowercase());
6124 } else {
6125 t.extend(c.to_uppercase());
6126 }
6127 t
6128 })
6129 })
6130 }
6131
6132 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6133 where
6134 Fn: FnMut(&str) -> String,
6135 {
6136 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6137 let buffer = self.buffer.read(cx).snapshot(cx);
6138
6139 let mut new_selections = Vec::new();
6140 let mut edits = Vec::new();
6141 let mut selection_adjustment = 0i32;
6142
6143 for selection in self.selections.all::<usize>(cx) {
6144 let selection_is_empty = selection.is_empty();
6145
6146 let (start, end) = if selection_is_empty {
6147 let word_range = movement::surrounding_word(
6148 &display_map,
6149 selection.start.to_display_point(&display_map),
6150 );
6151 let start = word_range.start.to_offset(&display_map, Bias::Left);
6152 let end = word_range.end.to_offset(&display_map, Bias::Left);
6153 (start, end)
6154 } else {
6155 (selection.start, selection.end)
6156 };
6157
6158 let text = buffer.text_for_range(start..end).collect::<String>();
6159 let old_length = text.len() as i32;
6160 let text = callback(&text);
6161
6162 new_selections.push(Selection {
6163 start: (start as i32 - selection_adjustment) as usize,
6164 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6165 goal: SelectionGoal::None,
6166 ..selection
6167 });
6168
6169 selection_adjustment += old_length - text.len() as i32;
6170
6171 edits.push((start..end, text));
6172 }
6173
6174 self.transact(cx, |this, cx| {
6175 this.buffer.update(cx, |buffer, cx| {
6176 buffer.edit(edits, None, cx);
6177 });
6178
6179 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6180 s.select(new_selections);
6181 });
6182
6183 this.request_autoscroll(Autoscroll::fit(), cx);
6184 });
6185 }
6186
6187 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6188 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6189 let buffer = &display_map.buffer_snapshot;
6190 let selections = self.selections.all::<Point>(cx);
6191
6192 let mut edits = Vec::new();
6193 let mut selections_iter = selections.iter().peekable();
6194 while let Some(selection) = selections_iter.next() {
6195 // Avoid duplicating the same lines twice.
6196 let mut rows = selection.spanned_rows(false, &display_map);
6197
6198 while let Some(next_selection) = selections_iter.peek() {
6199 let next_rows = next_selection.spanned_rows(false, &display_map);
6200 if next_rows.start < rows.end {
6201 rows.end = next_rows.end;
6202 selections_iter.next().unwrap();
6203 } else {
6204 break;
6205 }
6206 }
6207
6208 // Copy the text from the selected row region and splice it either at the start
6209 // or end of the region.
6210 let start = Point::new(rows.start.0, 0);
6211 let end = Point::new(
6212 rows.end.previous_row().0,
6213 buffer.line_len(rows.end.previous_row()),
6214 );
6215 let text = buffer
6216 .text_for_range(start..end)
6217 .chain(Some("\n"))
6218 .collect::<String>();
6219 let insert_location = if upwards {
6220 Point::new(rows.end.0, 0)
6221 } else {
6222 start
6223 };
6224 edits.push((insert_location..insert_location, text));
6225 }
6226
6227 self.transact(cx, |this, cx| {
6228 this.buffer.update(cx, |buffer, cx| {
6229 buffer.edit(edits, None, cx);
6230 });
6231
6232 this.request_autoscroll(Autoscroll::fit(), cx);
6233 });
6234 }
6235
6236 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6237 self.duplicate_line(true, cx);
6238 }
6239
6240 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6241 self.duplicate_line(false, cx);
6242 }
6243
6244 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6245 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6246 let buffer = self.buffer.read(cx).snapshot(cx);
6247
6248 let mut edits = Vec::new();
6249 let mut unfold_ranges = Vec::new();
6250 let mut refold_ranges = Vec::new();
6251
6252 let selections = self.selections.all::<Point>(cx);
6253 let mut selections = selections.iter().peekable();
6254 let mut contiguous_row_selections = Vec::new();
6255 let mut new_selections = Vec::new();
6256
6257 while let Some(selection) = selections.next() {
6258 // Find all the selections that span a contiguous row range
6259 let (start_row, end_row) = consume_contiguous_rows(
6260 &mut contiguous_row_selections,
6261 selection,
6262 &display_map,
6263 &mut selections,
6264 );
6265
6266 // Move the text spanned by the row range to be before the line preceding the row range
6267 if start_row.0 > 0 {
6268 let range_to_move = Point::new(
6269 start_row.previous_row().0,
6270 buffer.line_len(start_row.previous_row()),
6271 )
6272 ..Point::new(
6273 end_row.previous_row().0,
6274 buffer.line_len(end_row.previous_row()),
6275 );
6276 let insertion_point = display_map
6277 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6278 .0;
6279
6280 // Don't move lines across excerpts
6281 if buffer
6282 .excerpt_boundaries_in_range((
6283 Bound::Excluded(insertion_point),
6284 Bound::Included(range_to_move.end),
6285 ))
6286 .next()
6287 .is_none()
6288 {
6289 let text = buffer
6290 .text_for_range(range_to_move.clone())
6291 .flat_map(|s| s.chars())
6292 .skip(1)
6293 .chain(['\n'])
6294 .collect::<String>();
6295
6296 edits.push((
6297 buffer.anchor_after(range_to_move.start)
6298 ..buffer.anchor_before(range_to_move.end),
6299 String::new(),
6300 ));
6301 let insertion_anchor = buffer.anchor_after(insertion_point);
6302 edits.push((insertion_anchor..insertion_anchor, text));
6303
6304 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6305
6306 // Move selections up
6307 new_selections.extend(contiguous_row_selections.drain(..).map(
6308 |mut selection| {
6309 selection.start.row -= row_delta;
6310 selection.end.row -= row_delta;
6311 selection
6312 },
6313 ));
6314
6315 // Move folds up
6316 unfold_ranges.push(range_to_move.clone());
6317 for fold in display_map.folds_in_range(
6318 buffer.anchor_before(range_to_move.start)
6319 ..buffer.anchor_after(range_to_move.end),
6320 ) {
6321 let mut start = fold.range.start.to_point(&buffer);
6322 let mut end = fold.range.end.to_point(&buffer);
6323 start.row -= row_delta;
6324 end.row -= row_delta;
6325 refold_ranges.push((start..end, fold.placeholder.clone()));
6326 }
6327 }
6328 }
6329
6330 // If we didn't move line(s), preserve the existing selections
6331 new_selections.append(&mut contiguous_row_selections);
6332 }
6333
6334 self.transact(cx, |this, cx| {
6335 this.unfold_ranges(unfold_ranges, true, true, cx);
6336 this.buffer.update(cx, |buffer, cx| {
6337 for (range, text) in edits {
6338 buffer.edit([(range, text)], None, cx);
6339 }
6340 });
6341 this.fold_ranges(refold_ranges, true, cx);
6342 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6343 s.select(new_selections);
6344 })
6345 });
6346 }
6347
6348 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6349 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6350 let buffer = self.buffer.read(cx).snapshot(cx);
6351
6352 let mut edits = Vec::new();
6353 let mut unfold_ranges = Vec::new();
6354 let mut refold_ranges = Vec::new();
6355
6356 let selections = self.selections.all::<Point>(cx);
6357 let mut selections = selections.iter().peekable();
6358 let mut contiguous_row_selections = Vec::new();
6359 let mut new_selections = Vec::new();
6360
6361 while let Some(selection) = selections.next() {
6362 // Find all the selections that span a contiguous row range
6363 let (start_row, end_row) = consume_contiguous_rows(
6364 &mut contiguous_row_selections,
6365 selection,
6366 &display_map,
6367 &mut selections,
6368 );
6369
6370 // Move the text spanned by the row range to be after the last line of the row range
6371 if end_row.0 <= buffer.max_point().row {
6372 let range_to_move =
6373 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6374 let insertion_point = display_map
6375 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6376 .0;
6377
6378 // Don't move lines across excerpt boundaries
6379 if buffer
6380 .excerpt_boundaries_in_range((
6381 Bound::Excluded(range_to_move.start),
6382 Bound::Included(insertion_point),
6383 ))
6384 .next()
6385 .is_none()
6386 {
6387 let mut text = String::from("\n");
6388 text.extend(buffer.text_for_range(range_to_move.clone()));
6389 text.pop(); // Drop trailing newline
6390 edits.push((
6391 buffer.anchor_after(range_to_move.start)
6392 ..buffer.anchor_before(range_to_move.end),
6393 String::new(),
6394 ));
6395 let insertion_anchor = buffer.anchor_after(insertion_point);
6396 edits.push((insertion_anchor..insertion_anchor, text));
6397
6398 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6399
6400 // Move selections down
6401 new_selections.extend(contiguous_row_selections.drain(..).map(
6402 |mut selection| {
6403 selection.start.row += row_delta;
6404 selection.end.row += row_delta;
6405 selection
6406 },
6407 ));
6408
6409 // Move folds down
6410 unfold_ranges.push(range_to_move.clone());
6411 for fold in display_map.folds_in_range(
6412 buffer.anchor_before(range_to_move.start)
6413 ..buffer.anchor_after(range_to_move.end),
6414 ) {
6415 let mut start = fold.range.start.to_point(&buffer);
6416 let mut end = fold.range.end.to_point(&buffer);
6417 start.row += row_delta;
6418 end.row += row_delta;
6419 refold_ranges.push((start..end, fold.placeholder.clone()));
6420 }
6421 }
6422 }
6423
6424 // If we didn't move line(s), preserve the existing selections
6425 new_selections.append(&mut contiguous_row_selections);
6426 }
6427
6428 self.transact(cx, |this, cx| {
6429 this.unfold_ranges(unfold_ranges, true, true, cx);
6430 this.buffer.update(cx, |buffer, cx| {
6431 for (range, text) in edits {
6432 buffer.edit([(range, text)], None, cx);
6433 }
6434 });
6435 this.fold_ranges(refold_ranges, true, cx);
6436 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6437 });
6438 }
6439
6440 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6441 let text_layout_details = &self.text_layout_details(cx);
6442 self.transact(cx, |this, cx| {
6443 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6444 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6445 let line_mode = s.line_mode;
6446 s.move_with(|display_map, selection| {
6447 if !selection.is_empty() || line_mode {
6448 return;
6449 }
6450
6451 let mut head = selection.head();
6452 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6453 if head.column() == display_map.line_len(head.row()) {
6454 transpose_offset = display_map
6455 .buffer_snapshot
6456 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6457 }
6458
6459 if transpose_offset == 0 {
6460 return;
6461 }
6462
6463 *head.column_mut() += 1;
6464 head = display_map.clip_point(head, Bias::Right);
6465 let goal = SelectionGoal::HorizontalPosition(
6466 display_map
6467 .x_for_display_point(head, &text_layout_details)
6468 .into(),
6469 );
6470 selection.collapse_to(head, goal);
6471
6472 let transpose_start = display_map
6473 .buffer_snapshot
6474 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6475 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6476 let transpose_end = display_map
6477 .buffer_snapshot
6478 .clip_offset(transpose_offset + 1, Bias::Right);
6479 if let Some(ch) =
6480 display_map.buffer_snapshot.chars_at(transpose_start).next()
6481 {
6482 edits.push((transpose_start..transpose_offset, String::new()));
6483 edits.push((transpose_end..transpose_end, ch.to_string()));
6484 }
6485 }
6486 });
6487 edits
6488 });
6489 this.buffer
6490 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6491 let selections = this.selections.all::<usize>(cx);
6492 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6493 s.select(selections);
6494 });
6495 });
6496 }
6497
6498 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6499 let mut text = String::new();
6500 let buffer = self.buffer.read(cx).snapshot(cx);
6501 let mut selections = self.selections.all::<Point>(cx);
6502 let mut clipboard_selections = Vec::with_capacity(selections.len());
6503 {
6504 let max_point = buffer.max_point();
6505 let mut is_first = true;
6506 for selection in &mut selections {
6507 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6508 if is_entire_line {
6509 selection.start = Point::new(selection.start.row, 0);
6510 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6511 selection.goal = SelectionGoal::None;
6512 }
6513 if is_first {
6514 is_first = false;
6515 } else {
6516 text += "\n";
6517 }
6518 let mut len = 0;
6519 for chunk in buffer.text_for_range(selection.start..selection.end) {
6520 text.push_str(chunk);
6521 len += chunk.len();
6522 }
6523 clipboard_selections.push(ClipboardSelection {
6524 len,
6525 is_entire_line,
6526 first_line_indent: buffer
6527 .indent_size_for_line(MultiBufferRow(selection.start.row))
6528 .len,
6529 });
6530 }
6531 }
6532
6533 self.transact(cx, |this, cx| {
6534 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6535 s.select(selections);
6536 });
6537 this.insert("", cx);
6538 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6539 });
6540 }
6541
6542 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6543 let selections = self.selections.all::<Point>(cx);
6544 let buffer = self.buffer.read(cx).read(cx);
6545 let mut text = String::new();
6546
6547 let mut clipboard_selections = Vec::with_capacity(selections.len());
6548 {
6549 let max_point = buffer.max_point();
6550 let mut is_first = true;
6551 for selection in selections.iter() {
6552 let mut start = selection.start;
6553 let mut end = selection.end;
6554 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6555 if is_entire_line {
6556 start = Point::new(start.row, 0);
6557 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6558 }
6559 if is_first {
6560 is_first = false;
6561 } else {
6562 text += "\n";
6563 }
6564 let mut len = 0;
6565 for chunk in buffer.text_for_range(start..end) {
6566 text.push_str(chunk);
6567 len += chunk.len();
6568 }
6569 clipboard_selections.push(ClipboardSelection {
6570 len,
6571 is_entire_line,
6572 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6573 });
6574 }
6575 }
6576
6577 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6578 }
6579
6580 pub fn do_paste(
6581 &mut self,
6582 text: &String,
6583 clipboard_selections: Option<Vec<ClipboardSelection>>,
6584 handle_entire_lines: bool,
6585 cx: &mut ViewContext<Self>,
6586 ) {
6587 if self.read_only(cx) {
6588 return;
6589 }
6590
6591 let clipboard_text = Cow::Borrowed(text);
6592
6593 self.transact(cx, |this, cx| {
6594 if let Some(mut clipboard_selections) = clipboard_selections {
6595 let old_selections = this.selections.all::<usize>(cx);
6596 let all_selections_were_entire_line =
6597 clipboard_selections.iter().all(|s| s.is_entire_line);
6598 let first_selection_indent_column =
6599 clipboard_selections.first().map(|s| s.first_line_indent);
6600 if clipboard_selections.len() != old_selections.len() {
6601 clipboard_selections.drain(..);
6602 }
6603
6604 this.buffer.update(cx, |buffer, cx| {
6605 let snapshot = buffer.read(cx);
6606 let mut start_offset = 0;
6607 let mut edits = Vec::new();
6608 let mut original_indent_columns = Vec::new();
6609 for (ix, selection) in old_selections.iter().enumerate() {
6610 let to_insert;
6611 let entire_line;
6612 let original_indent_column;
6613 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6614 let end_offset = start_offset + clipboard_selection.len;
6615 to_insert = &clipboard_text[start_offset..end_offset];
6616 entire_line = clipboard_selection.is_entire_line;
6617 start_offset = end_offset + 1;
6618 original_indent_column = Some(clipboard_selection.first_line_indent);
6619 } else {
6620 to_insert = clipboard_text.as_str();
6621 entire_line = all_selections_were_entire_line;
6622 original_indent_column = first_selection_indent_column
6623 }
6624
6625 // If the corresponding selection was empty when this slice of the
6626 // clipboard text was written, then the entire line containing the
6627 // selection was copied. If this selection is also currently empty,
6628 // then paste the line before the current line of the buffer.
6629 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6630 let column = selection.start.to_point(&snapshot).column as usize;
6631 let line_start = selection.start - column;
6632 line_start..line_start
6633 } else {
6634 selection.range()
6635 };
6636
6637 edits.push((range, to_insert));
6638 original_indent_columns.extend(original_indent_column);
6639 }
6640 drop(snapshot);
6641
6642 buffer.edit(
6643 edits,
6644 Some(AutoindentMode::Block {
6645 original_indent_columns,
6646 }),
6647 cx,
6648 );
6649 });
6650
6651 let selections = this.selections.all::<usize>(cx);
6652 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6653 } else {
6654 this.insert(&clipboard_text, cx);
6655 }
6656 });
6657 }
6658
6659 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6660 if let Some(item) = cx.read_from_clipboard() {
6661 self.do_paste(
6662 item.text(),
6663 item.metadata::<Vec<ClipboardSelection>>(),
6664 true,
6665 cx,
6666 )
6667 };
6668 }
6669
6670 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6671 if self.read_only(cx) {
6672 return;
6673 }
6674
6675 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6676 if let Some((selections, _)) =
6677 self.selection_history.transaction(transaction_id).cloned()
6678 {
6679 self.change_selections(None, cx, |s| {
6680 s.select_anchors(selections.to_vec());
6681 });
6682 }
6683 self.request_autoscroll(Autoscroll::fit(), cx);
6684 self.unmark_text(cx);
6685 self.refresh_inline_completion(true, cx);
6686 cx.emit(EditorEvent::Edited { transaction_id });
6687 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6688 }
6689 }
6690
6691 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6692 if self.read_only(cx) {
6693 return;
6694 }
6695
6696 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6697 if let Some((_, Some(selections))) =
6698 self.selection_history.transaction(transaction_id).cloned()
6699 {
6700 self.change_selections(None, cx, |s| {
6701 s.select_anchors(selections.to_vec());
6702 });
6703 }
6704 self.request_autoscroll(Autoscroll::fit(), cx);
6705 self.unmark_text(cx);
6706 self.refresh_inline_completion(true, cx);
6707 cx.emit(EditorEvent::Edited { transaction_id });
6708 }
6709 }
6710
6711 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6712 self.buffer
6713 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6714 }
6715
6716 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6717 self.buffer
6718 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6719 }
6720
6721 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6722 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6723 let line_mode = s.line_mode;
6724 s.move_with(|map, selection| {
6725 let cursor = if selection.is_empty() && !line_mode {
6726 movement::left(map, selection.start)
6727 } else {
6728 selection.start
6729 };
6730 selection.collapse_to(cursor, SelectionGoal::None);
6731 });
6732 })
6733 }
6734
6735 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6736 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6737 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6738 })
6739 }
6740
6741 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6742 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6743 let line_mode = s.line_mode;
6744 s.move_with(|map, selection| {
6745 let cursor = if selection.is_empty() && !line_mode {
6746 movement::right(map, selection.end)
6747 } else {
6748 selection.end
6749 };
6750 selection.collapse_to(cursor, SelectionGoal::None)
6751 });
6752 })
6753 }
6754
6755 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6756 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6757 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6758 })
6759 }
6760
6761 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6762 if self.take_rename(true, cx).is_some() {
6763 return;
6764 }
6765
6766 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6767 cx.propagate();
6768 return;
6769 }
6770
6771 let text_layout_details = &self.text_layout_details(cx);
6772 let selection_count = self.selections.count();
6773 let first_selection = self.selections.first_anchor();
6774
6775 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6776 let line_mode = s.line_mode;
6777 s.move_with(|map, selection| {
6778 if !selection.is_empty() && !line_mode {
6779 selection.goal = SelectionGoal::None;
6780 }
6781 let (cursor, goal) = movement::up(
6782 map,
6783 selection.start,
6784 selection.goal,
6785 false,
6786 &text_layout_details,
6787 );
6788 selection.collapse_to(cursor, goal);
6789 });
6790 });
6791
6792 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6793 {
6794 cx.propagate();
6795 }
6796 }
6797
6798 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6799 if self.take_rename(true, cx).is_some() {
6800 return;
6801 }
6802
6803 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6804 cx.propagate();
6805 return;
6806 }
6807
6808 let text_layout_details = &self.text_layout_details(cx);
6809
6810 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6811 let line_mode = s.line_mode;
6812 s.move_with(|map, selection| {
6813 if !selection.is_empty() && !line_mode {
6814 selection.goal = SelectionGoal::None;
6815 }
6816 let (cursor, goal) = movement::up_by_rows(
6817 map,
6818 selection.start,
6819 action.lines,
6820 selection.goal,
6821 false,
6822 &text_layout_details,
6823 );
6824 selection.collapse_to(cursor, goal);
6825 });
6826 })
6827 }
6828
6829 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6830 if self.take_rename(true, cx).is_some() {
6831 return;
6832 }
6833
6834 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6835 cx.propagate();
6836 return;
6837 }
6838
6839 let text_layout_details = &self.text_layout_details(cx);
6840
6841 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6842 let line_mode = s.line_mode;
6843 s.move_with(|map, selection| {
6844 if !selection.is_empty() && !line_mode {
6845 selection.goal = SelectionGoal::None;
6846 }
6847 let (cursor, goal) = movement::down_by_rows(
6848 map,
6849 selection.start,
6850 action.lines,
6851 selection.goal,
6852 false,
6853 &text_layout_details,
6854 );
6855 selection.collapse_to(cursor, goal);
6856 });
6857 })
6858 }
6859
6860 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6861 let text_layout_details = &self.text_layout_details(cx);
6862 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6863 s.move_heads_with(|map, head, goal| {
6864 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6865 })
6866 })
6867 }
6868
6869 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6870 let text_layout_details = &self.text_layout_details(cx);
6871 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6872 s.move_heads_with(|map, head, goal| {
6873 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6874 })
6875 })
6876 }
6877
6878 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
6879 let Some(row_count) = self.visible_row_count() else {
6880 return;
6881 };
6882
6883 let text_layout_details = &self.text_layout_details(cx);
6884
6885 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6886 s.move_heads_with(|map, head, goal| {
6887 movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
6888 })
6889 })
6890 }
6891
6892 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6893 if self.take_rename(true, cx).is_some() {
6894 return;
6895 }
6896
6897 if self
6898 .context_menu
6899 .write()
6900 .as_mut()
6901 .map(|menu| menu.select_first(self.project.as_ref(), cx))
6902 .unwrap_or(false)
6903 {
6904 return;
6905 }
6906
6907 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6908 cx.propagate();
6909 return;
6910 }
6911
6912 let Some(row_count) = self.visible_row_count() else {
6913 return;
6914 };
6915
6916 let autoscroll = if action.center_cursor {
6917 Autoscroll::center()
6918 } else {
6919 Autoscroll::fit()
6920 };
6921
6922 let text_layout_details = &self.text_layout_details(cx);
6923
6924 self.change_selections(Some(autoscroll), cx, |s| {
6925 let line_mode = s.line_mode;
6926 s.move_with(|map, selection| {
6927 if !selection.is_empty() && !line_mode {
6928 selection.goal = SelectionGoal::None;
6929 }
6930 let (cursor, goal) = movement::up_by_rows(
6931 map,
6932 selection.end,
6933 row_count,
6934 selection.goal,
6935 false,
6936 &text_layout_details,
6937 );
6938 selection.collapse_to(cursor, goal);
6939 });
6940 });
6941 }
6942
6943 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6944 let text_layout_details = &self.text_layout_details(cx);
6945 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6946 s.move_heads_with(|map, head, goal| {
6947 movement::up(map, head, goal, false, &text_layout_details)
6948 })
6949 })
6950 }
6951
6952 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6953 self.take_rename(true, cx);
6954
6955 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6956 cx.propagate();
6957 return;
6958 }
6959
6960 let text_layout_details = &self.text_layout_details(cx);
6961 let selection_count = self.selections.count();
6962 let first_selection = self.selections.first_anchor();
6963
6964 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6965 let line_mode = s.line_mode;
6966 s.move_with(|map, selection| {
6967 if !selection.is_empty() && !line_mode {
6968 selection.goal = SelectionGoal::None;
6969 }
6970 let (cursor, goal) = movement::down(
6971 map,
6972 selection.end,
6973 selection.goal,
6974 false,
6975 &text_layout_details,
6976 );
6977 selection.collapse_to(cursor, goal);
6978 });
6979 });
6980
6981 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6982 {
6983 cx.propagate();
6984 }
6985 }
6986
6987 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
6988 let Some(row_count) = self.visible_row_count() else {
6989 return;
6990 };
6991
6992 let text_layout_details = &self.text_layout_details(cx);
6993
6994 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6995 s.move_heads_with(|map, head, goal| {
6996 movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
6997 })
6998 })
6999 }
7000
7001 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7002 if self.take_rename(true, cx).is_some() {
7003 return;
7004 }
7005
7006 if self
7007 .context_menu
7008 .write()
7009 .as_mut()
7010 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7011 .unwrap_or(false)
7012 {
7013 return;
7014 }
7015
7016 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7017 cx.propagate();
7018 return;
7019 }
7020
7021 let Some(row_count) = self.visible_row_count() else {
7022 return;
7023 };
7024
7025 let autoscroll = if action.center_cursor {
7026 Autoscroll::center()
7027 } else {
7028 Autoscroll::fit()
7029 };
7030
7031 let text_layout_details = &self.text_layout_details(cx);
7032 self.change_selections(Some(autoscroll), cx, |s| {
7033 let line_mode = s.line_mode;
7034 s.move_with(|map, selection| {
7035 if !selection.is_empty() && !line_mode {
7036 selection.goal = SelectionGoal::None;
7037 }
7038 let (cursor, goal) = movement::down_by_rows(
7039 map,
7040 selection.end,
7041 row_count,
7042 selection.goal,
7043 false,
7044 &text_layout_details,
7045 );
7046 selection.collapse_to(cursor, goal);
7047 });
7048 });
7049 }
7050
7051 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7052 let text_layout_details = &self.text_layout_details(cx);
7053 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7054 s.move_heads_with(|map, head, goal| {
7055 movement::down(map, head, goal, false, &text_layout_details)
7056 })
7057 });
7058 }
7059
7060 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7061 if let Some(context_menu) = self.context_menu.write().as_mut() {
7062 context_menu.select_first(self.project.as_ref(), cx);
7063 }
7064 }
7065
7066 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7067 if let Some(context_menu) = self.context_menu.write().as_mut() {
7068 context_menu.select_prev(self.project.as_ref(), cx);
7069 }
7070 }
7071
7072 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7073 if let Some(context_menu) = self.context_menu.write().as_mut() {
7074 context_menu.select_next(self.project.as_ref(), cx);
7075 }
7076 }
7077
7078 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7079 if let Some(context_menu) = self.context_menu.write().as_mut() {
7080 context_menu.select_last(self.project.as_ref(), cx);
7081 }
7082 }
7083
7084 pub fn move_to_previous_word_start(
7085 &mut self,
7086 _: &MoveToPreviousWordStart,
7087 cx: &mut ViewContext<Self>,
7088 ) {
7089 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7090 s.move_cursors_with(|map, head, _| {
7091 (
7092 movement::previous_word_start(map, head),
7093 SelectionGoal::None,
7094 )
7095 });
7096 })
7097 }
7098
7099 pub fn move_to_previous_subword_start(
7100 &mut self,
7101 _: &MoveToPreviousSubwordStart,
7102 cx: &mut ViewContext<Self>,
7103 ) {
7104 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7105 s.move_cursors_with(|map, head, _| {
7106 (
7107 movement::previous_subword_start(map, head),
7108 SelectionGoal::None,
7109 )
7110 });
7111 })
7112 }
7113
7114 pub fn select_to_previous_word_start(
7115 &mut self,
7116 _: &SelectToPreviousWordStart,
7117 cx: &mut ViewContext<Self>,
7118 ) {
7119 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7120 s.move_heads_with(|map, head, _| {
7121 (
7122 movement::previous_word_start(map, head),
7123 SelectionGoal::None,
7124 )
7125 });
7126 })
7127 }
7128
7129 pub fn select_to_previous_subword_start(
7130 &mut self,
7131 _: &SelectToPreviousSubwordStart,
7132 cx: &mut ViewContext<Self>,
7133 ) {
7134 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7135 s.move_heads_with(|map, head, _| {
7136 (
7137 movement::previous_subword_start(map, head),
7138 SelectionGoal::None,
7139 )
7140 });
7141 })
7142 }
7143
7144 pub fn delete_to_previous_word_start(
7145 &mut self,
7146 _: &DeleteToPreviousWordStart,
7147 cx: &mut ViewContext<Self>,
7148 ) {
7149 self.transact(cx, |this, cx| {
7150 this.select_autoclose_pair(cx);
7151 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7152 let line_mode = s.line_mode;
7153 s.move_with(|map, selection| {
7154 if selection.is_empty() && !line_mode {
7155 let cursor = movement::previous_word_start(map, selection.head());
7156 selection.set_head(cursor, SelectionGoal::None);
7157 }
7158 });
7159 });
7160 this.insert("", cx);
7161 });
7162 }
7163
7164 pub fn delete_to_previous_subword_start(
7165 &mut self,
7166 _: &DeleteToPreviousSubwordStart,
7167 cx: &mut ViewContext<Self>,
7168 ) {
7169 self.transact(cx, |this, cx| {
7170 this.select_autoclose_pair(cx);
7171 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7172 let line_mode = s.line_mode;
7173 s.move_with(|map, selection| {
7174 if selection.is_empty() && !line_mode {
7175 let cursor = movement::previous_subword_start(map, selection.head());
7176 selection.set_head(cursor, SelectionGoal::None);
7177 }
7178 });
7179 });
7180 this.insert("", cx);
7181 });
7182 }
7183
7184 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7185 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7186 s.move_cursors_with(|map, head, _| {
7187 (movement::next_word_end(map, head), SelectionGoal::None)
7188 });
7189 })
7190 }
7191
7192 pub fn move_to_next_subword_end(
7193 &mut self,
7194 _: &MoveToNextSubwordEnd,
7195 cx: &mut ViewContext<Self>,
7196 ) {
7197 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7198 s.move_cursors_with(|map, head, _| {
7199 (movement::next_subword_end(map, head), SelectionGoal::None)
7200 });
7201 })
7202 }
7203
7204 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7205 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7206 s.move_heads_with(|map, head, _| {
7207 (movement::next_word_end(map, head), SelectionGoal::None)
7208 });
7209 })
7210 }
7211
7212 pub fn select_to_next_subword_end(
7213 &mut self,
7214 _: &SelectToNextSubwordEnd,
7215 cx: &mut ViewContext<Self>,
7216 ) {
7217 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7218 s.move_heads_with(|map, head, _| {
7219 (movement::next_subword_end(map, head), SelectionGoal::None)
7220 });
7221 })
7222 }
7223
7224 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
7225 self.transact(cx, |this, cx| {
7226 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7227 let line_mode = s.line_mode;
7228 s.move_with(|map, selection| {
7229 if selection.is_empty() && !line_mode {
7230 let cursor = movement::next_word_end(map, selection.head());
7231 selection.set_head(cursor, SelectionGoal::None);
7232 }
7233 });
7234 });
7235 this.insert("", cx);
7236 });
7237 }
7238
7239 pub fn delete_to_next_subword_end(
7240 &mut self,
7241 _: &DeleteToNextSubwordEnd,
7242 cx: &mut ViewContext<Self>,
7243 ) {
7244 self.transact(cx, |this, cx| {
7245 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7246 s.move_with(|map, selection| {
7247 if selection.is_empty() {
7248 let cursor = movement::next_subword_end(map, selection.head());
7249 selection.set_head(cursor, SelectionGoal::None);
7250 }
7251 });
7252 });
7253 this.insert("", cx);
7254 });
7255 }
7256
7257 pub fn move_to_beginning_of_line(
7258 &mut self,
7259 action: &MoveToBeginningOfLine,
7260 cx: &mut ViewContext<Self>,
7261 ) {
7262 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7263 s.move_cursors_with(|map, head, _| {
7264 (
7265 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7266 SelectionGoal::None,
7267 )
7268 });
7269 })
7270 }
7271
7272 pub fn select_to_beginning_of_line(
7273 &mut self,
7274 action: &SelectToBeginningOfLine,
7275 cx: &mut ViewContext<Self>,
7276 ) {
7277 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7278 s.move_heads_with(|map, head, _| {
7279 (
7280 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7281 SelectionGoal::None,
7282 )
7283 });
7284 });
7285 }
7286
7287 pub fn delete_to_beginning_of_line(
7288 &mut self,
7289 _: &DeleteToBeginningOfLine,
7290 cx: &mut ViewContext<Self>,
7291 ) {
7292 self.transact(cx, |this, cx| {
7293 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7294 s.move_with(|_, selection| {
7295 selection.reversed = true;
7296 });
7297 });
7298
7299 this.select_to_beginning_of_line(
7300 &SelectToBeginningOfLine {
7301 stop_at_soft_wraps: false,
7302 },
7303 cx,
7304 );
7305 this.backspace(&Backspace, cx);
7306 });
7307 }
7308
7309 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7310 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7311 s.move_cursors_with(|map, head, _| {
7312 (
7313 movement::line_end(map, head, action.stop_at_soft_wraps),
7314 SelectionGoal::None,
7315 )
7316 });
7317 })
7318 }
7319
7320 pub fn select_to_end_of_line(
7321 &mut self,
7322 action: &SelectToEndOfLine,
7323 cx: &mut ViewContext<Self>,
7324 ) {
7325 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7326 s.move_heads_with(|map, head, _| {
7327 (
7328 movement::line_end(map, head, action.stop_at_soft_wraps),
7329 SelectionGoal::None,
7330 )
7331 });
7332 })
7333 }
7334
7335 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7336 self.transact(cx, |this, cx| {
7337 this.select_to_end_of_line(
7338 &SelectToEndOfLine {
7339 stop_at_soft_wraps: false,
7340 },
7341 cx,
7342 );
7343 this.delete(&Delete, cx);
7344 });
7345 }
7346
7347 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7348 self.transact(cx, |this, cx| {
7349 this.select_to_end_of_line(
7350 &SelectToEndOfLine {
7351 stop_at_soft_wraps: false,
7352 },
7353 cx,
7354 );
7355 this.cut(&Cut, cx);
7356 });
7357 }
7358
7359 pub fn move_to_start_of_paragraph(
7360 &mut self,
7361 _: &MoveToStartOfParagraph,
7362 cx: &mut ViewContext<Self>,
7363 ) {
7364 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7365 cx.propagate();
7366 return;
7367 }
7368
7369 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7370 s.move_with(|map, selection| {
7371 selection.collapse_to(
7372 movement::start_of_paragraph(map, selection.head(), 1),
7373 SelectionGoal::None,
7374 )
7375 });
7376 })
7377 }
7378
7379 pub fn move_to_end_of_paragraph(
7380 &mut self,
7381 _: &MoveToEndOfParagraph,
7382 cx: &mut ViewContext<Self>,
7383 ) {
7384 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7385 cx.propagate();
7386 return;
7387 }
7388
7389 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7390 s.move_with(|map, selection| {
7391 selection.collapse_to(
7392 movement::end_of_paragraph(map, selection.head(), 1),
7393 SelectionGoal::None,
7394 )
7395 });
7396 })
7397 }
7398
7399 pub fn select_to_start_of_paragraph(
7400 &mut self,
7401 _: &SelectToStartOfParagraph,
7402 cx: &mut ViewContext<Self>,
7403 ) {
7404 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7405 cx.propagate();
7406 return;
7407 }
7408
7409 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7410 s.move_heads_with(|map, head, _| {
7411 (
7412 movement::start_of_paragraph(map, head, 1),
7413 SelectionGoal::None,
7414 )
7415 });
7416 })
7417 }
7418
7419 pub fn select_to_end_of_paragraph(
7420 &mut self,
7421 _: &SelectToEndOfParagraph,
7422 cx: &mut ViewContext<Self>,
7423 ) {
7424 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7425 cx.propagate();
7426 return;
7427 }
7428
7429 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7430 s.move_heads_with(|map, head, _| {
7431 (
7432 movement::end_of_paragraph(map, head, 1),
7433 SelectionGoal::None,
7434 )
7435 });
7436 })
7437 }
7438
7439 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7440 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7441 cx.propagate();
7442 return;
7443 }
7444
7445 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7446 s.select_ranges(vec![0..0]);
7447 });
7448 }
7449
7450 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7451 let mut selection = self.selections.last::<Point>(cx);
7452 selection.set_head(Point::zero(), SelectionGoal::None);
7453
7454 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7455 s.select(vec![selection]);
7456 });
7457 }
7458
7459 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7460 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7461 cx.propagate();
7462 return;
7463 }
7464
7465 let cursor = self.buffer.read(cx).read(cx).len();
7466 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7467 s.select_ranges(vec![cursor..cursor])
7468 });
7469 }
7470
7471 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7472 self.nav_history = nav_history;
7473 }
7474
7475 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7476 self.nav_history.as_ref()
7477 }
7478
7479 fn push_to_nav_history(
7480 &mut self,
7481 cursor_anchor: Anchor,
7482 new_position: Option<Point>,
7483 cx: &mut ViewContext<Self>,
7484 ) {
7485 if let Some(nav_history) = self.nav_history.as_mut() {
7486 let buffer = self.buffer.read(cx).read(cx);
7487 let cursor_position = cursor_anchor.to_point(&buffer);
7488 let scroll_state = self.scroll_manager.anchor();
7489 let scroll_top_row = scroll_state.top_row(&buffer);
7490 drop(buffer);
7491
7492 if let Some(new_position) = new_position {
7493 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7494 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7495 return;
7496 }
7497 }
7498
7499 nav_history.push(
7500 Some(NavigationData {
7501 cursor_anchor,
7502 cursor_position,
7503 scroll_anchor: scroll_state,
7504 scroll_top_row,
7505 }),
7506 cx,
7507 );
7508 }
7509 }
7510
7511 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7512 let buffer = self.buffer.read(cx).snapshot(cx);
7513 let mut selection = self.selections.first::<usize>(cx);
7514 selection.set_head(buffer.len(), SelectionGoal::None);
7515 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7516 s.select(vec![selection]);
7517 });
7518 }
7519
7520 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7521 let end = self.buffer.read(cx).read(cx).len();
7522 self.change_selections(None, cx, |s| {
7523 s.select_ranges(vec![0..end]);
7524 });
7525 }
7526
7527 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7528 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7529 let mut selections = self.selections.all::<Point>(cx);
7530 let max_point = display_map.buffer_snapshot.max_point();
7531 for selection in &mut selections {
7532 let rows = selection.spanned_rows(true, &display_map);
7533 selection.start = Point::new(rows.start.0, 0);
7534 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7535 selection.reversed = false;
7536 }
7537 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7538 s.select(selections);
7539 });
7540 }
7541
7542 pub fn split_selection_into_lines(
7543 &mut self,
7544 _: &SplitSelectionIntoLines,
7545 cx: &mut ViewContext<Self>,
7546 ) {
7547 let mut to_unfold = Vec::new();
7548 let mut new_selection_ranges = Vec::new();
7549 {
7550 let selections = self.selections.all::<Point>(cx);
7551 let buffer = self.buffer.read(cx).read(cx);
7552 for selection in selections {
7553 for row in selection.start.row..selection.end.row {
7554 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7555 new_selection_ranges.push(cursor..cursor);
7556 }
7557 new_selection_ranges.push(selection.end..selection.end);
7558 to_unfold.push(selection.start..selection.end);
7559 }
7560 }
7561 self.unfold_ranges(to_unfold, true, true, cx);
7562 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7563 s.select_ranges(new_selection_ranges);
7564 });
7565 }
7566
7567 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7568 self.add_selection(true, cx);
7569 }
7570
7571 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7572 self.add_selection(false, cx);
7573 }
7574
7575 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7576 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7577 let mut selections = self.selections.all::<Point>(cx);
7578 let text_layout_details = self.text_layout_details(cx);
7579 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7580 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7581 let range = oldest_selection.display_range(&display_map).sorted();
7582
7583 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7584 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7585 let positions = start_x.min(end_x)..start_x.max(end_x);
7586
7587 selections.clear();
7588 let mut stack = Vec::new();
7589 for row in range.start.row().0..=range.end.row().0 {
7590 if let Some(selection) = self.selections.build_columnar_selection(
7591 &display_map,
7592 DisplayRow(row),
7593 &positions,
7594 oldest_selection.reversed,
7595 &text_layout_details,
7596 ) {
7597 stack.push(selection.id);
7598 selections.push(selection);
7599 }
7600 }
7601
7602 if above {
7603 stack.reverse();
7604 }
7605
7606 AddSelectionsState { above, stack }
7607 });
7608
7609 let last_added_selection = *state.stack.last().unwrap();
7610 let mut new_selections = Vec::new();
7611 if above == state.above {
7612 let end_row = if above {
7613 DisplayRow(0)
7614 } else {
7615 display_map.max_point().row()
7616 };
7617
7618 'outer: for selection in selections {
7619 if selection.id == last_added_selection {
7620 let range = selection.display_range(&display_map).sorted();
7621 debug_assert_eq!(range.start.row(), range.end.row());
7622 let mut row = range.start.row();
7623 let positions =
7624 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7625 px(start)..px(end)
7626 } else {
7627 let start_x =
7628 display_map.x_for_display_point(range.start, &text_layout_details);
7629 let end_x =
7630 display_map.x_for_display_point(range.end, &text_layout_details);
7631 start_x.min(end_x)..start_x.max(end_x)
7632 };
7633
7634 while row != end_row {
7635 if above {
7636 row.0 -= 1;
7637 } else {
7638 row.0 += 1;
7639 }
7640
7641 if let Some(new_selection) = self.selections.build_columnar_selection(
7642 &display_map,
7643 row,
7644 &positions,
7645 selection.reversed,
7646 &text_layout_details,
7647 ) {
7648 state.stack.push(new_selection.id);
7649 if above {
7650 new_selections.push(new_selection);
7651 new_selections.push(selection);
7652 } else {
7653 new_selections.push(selection);
7654 new_selections.push(new_selection);
7655 }
7656
7657 continue 'outer;
7658 }
7659 }
7660 }
7661
7662 new_selections.push(selection);
7663 }
7664 } else {
7665 new_selections = selections;
7666 new_selections.retain(|s| s.id != last_added_selection);
7667 state.stack.pop();
7668 }
7669
7670 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7671 s.select(new_selections);
7672 });
7673 if state.stack.len() > 1 {
7674 self.add_selections_state = Some(state);
7675 }
7676 }
7677
7678 pub fn select_next_match_internal(
7679 &mut self,
7680 display_map: &DisplaySnapshot,
7681 replace_newest: bool,
7682 autoscroll: Option<Autoscroll>,
7683 cx: &mut ViewContext<Self>,
7684 ) -> Result<()> {
7685 fn select_next_match_ranges(
7686 this: &mut Editor,
7687 range: Range<usize>,
7688 replace_newest: bool,
7689 auto_scroll: Option<Autoscroll>,
7690 cx: &mut ViewContext<Editor>,
7691 ) {
7692 this.unfold_ranges([range.clone()], false, true, cx);
7693 this.change_selections(auto_scroll, cx, |s| {
7694 if replace_newest {
7695 s.delete(s.newest_anchor().id);
7696 }
7697 s.insert_range(range.clone());
7698 });
7699 }
7700
7701 let buffer = &display_map.buffer_snapshot;
7702 let mut selections = self.selections.all::<usize>(cx);
7703 if let Some(mut select_next_state) = self.select_next_state.take() {
7704 let query = &select_next_state.query;
7705 if !select_next_state.done {
7706 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7707 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7708 let mut next_selected_range = None;
7709
7710 let bytes_after_last_selection =
7711 buffer.bytes_in_range(last_selection.end..buffer.len());
7712 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7713 let query_matches = query
7714 .stream_find_iter(bytes_after_last_selection)
7715 .map(|result| (last_selection.end, result))
7716 .chain(
7717 query
7718 .stream_find_iter(bytes_before_first_selection)
7719 .map(|result| (0, result)),
7720 );
7721
7722 for (start_offset, query_match) in query_matches {
7723 let query_match = query_match.unwrap(); // can only fail due to I/O
7724 let offset_range =
7725 start_offset + query_match.start()..start_offset + query_match.end();
7726 let display_range = offset_range.start.to_display_point(&display_map)
7727 ..offset_range.end.to_display_point(&display_map);
7728
7729 if !select_next_state.wordwise
7730 || (!movement::is_inside_word(&display_map, display_range.start)
7731 && !movement::is_inside_word(&display_map, display_range.end))
7732 {
7733 // TODO: This is n^2, because we might check all the selections
7734 if !selections
7735 .iter()
7736 .any(|selection| selection.range().overlaps(&offset_range))
7737 {
7738 next_selected_range = Some(offset_range);
7739 break;
7740 }
7741 }
7742 }
7743
7744 if let Some(next_selected_range) = next_selected_range {
7745 select_next_match_ranges(
7746 self,
7747 next_selected_range,
7748 replace_newest,
7749 autoscroll,
7750 cx,
7751 );
7752 } else {
7753 select_next_state.done = true;
7754 }
7755 }
7756
7757 self.select_next_state = Some(select_next_state);
7758 } else {
7759 let mut only_carets = true;
7760 let mut same_text_selected = true;
7761 let mut selected_text = None;
7762
7763 let mut selections_iter = selections.iter().peekable();
7764 while let Some(selection) = selections_iter.next() {
7765 if selection.start != selection.end {
7766 only_carets = false;
7767 }
7768
7769 if same_text_selected {
7770 if selected_text.is_none() {
7771 selected_text =
7772 Some(buffer.text_for_range(selection.range()).collect::<String>());
7773 }
7774
7775 if let Some(next_selection) = selections_iter.peek() {
7776 if next_selection.range().len() == selection.range().len() {
7777 let next_selected_text = buffer
7778 .text_for_range(next_selection.range())
7779 .collect::<String>();
7780 if Some(next_selected_text) != selected_text {
7781 same_text_selected = false;
7782 selected_text = None;
7783 }
7784 } else {
7785 same_text_selected = false;
7786 selected_text = None;
7787 }
7788 }
7789 }
7790 }
7791
7792 if only_carets {
7793 for selection in &mut selections {
7794 let word_range = movement::surrounding_word(
7795 &display_map,
7796 selection.start.to_display_point(&display_map),
7797 );
7798 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7799 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7800 selection.goal = SelectionGoal::None;
7801 selection.reversed = false;
7802 select_next_match_ranges(
7803 self,
7804 selection.start..selection.end,
7805 replace_newest,
7806 autoscroll,
7807 cx,
7808 );
7809 }
7810
7811 if selections.len() == 1 {
7812 let selection = selections
7813 .last()
7814 .expect("ensured that there's only one selection");
7815 let query = buffer
7816 .text_for_range(selection.start..selection.end)
7817 .collect::<String>();
7818 let is_empty = query.is_empty();
7819 let select_state = SelectNextState {
7820 query: AhoCorasick::new(&[query])?,
7821 wordwise: true,
7822 done: is_empty,
7823 };
7824 self.select_next_state = Some(select_state);
7825 } else {
7826 self.select_next_state = None;
7827 }
7828 } else if let Some(selected_text) = selected_text {
7829 self.select_next_state = Some(SelectNextState {
7830 query: AhoCorasick::new(&[selected_text])?,
7831 wordwise: false,
7832 done: false,
7833 });
7834 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7835 }
7836 }
7837 Ok(())
7838 }
7839
7840 pub fn select_all_matches(
7841 &mut self,
7842 _action: &SelectAllMatches,
7843 cx: &mut ViewContext<Self>,
7844 ) -> Result<()> {
7845 self.push_to_selection_history();
7846 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7847
7848 self.select_next_match_internal(&display_map, false, None, cx)?;
7849 let Some(select_next_state) = self.select_next_state.as_mut() else {
7850 return Ok(());
7851 };
7852 if select_next_state.done {
7853 return Ok(());
7854 }
7855
7856 let mut new_selections = self.selections.all::<usize>(cx);
7857
7858 let buffer = &display_map.buffer_snapshot;
7859 let query_matches = select_next_state
7860 .query
7861 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7862
7863 for query_match in query_matches {
7864 let query_match = query_match.unwrap(); // can only fail due to I/O
7865 let offset_range = query_match.start()..query_match.end();
7866 let display_range = offset_range.start.to_display_point(&display_map)
7867 ..offset_range.end.to_display_point(&display_map);
7868
7869 if !select_next_state.wordwise
7870 || (!movement::is_inside_word(&display_map, display_range.start)
7871 && !movement::is_inside_word(&display_map, display_range.end))
7872 {
7873 self.selections.change_with(cx, |selections| {
7874 new_selections.push(Selection {
7875 id: selections.new_selection_id(),
7876 start: offset_range.start,
7877 end: offset_range.end,
7878 reversed: false,
7879 goal: SelectionGoal::None,
7880 });
7881 });
7882 }
7883 }
7884
7885 new_selections.sort_by_key(|selection| selection.start);
7886 let mut ix = 0;
7887 while ix + 1 < new_selections.len() {
7888 let current_selection = &new_selections[ix];
7889 let next_selection = &new_selections[ix + 1];
7890 if current_selection.range().overlaps(&next_selection.range()) {
7891 if current_selection.id < next_selection.id {
7892 new_selections.remove(ix + 1);
7893 } else {
7894 new_selections.remove(ix);
7895 }
7896 } else {
7897 ix += 1;
7898 }
7899 }
7900
7901 select_next_state.done = true;
7902 self.unfold_ranges(
7903 new_selections.iter().map(|selection| selection.range()),
7904 false,
7905 false,
7906 cx,
7907 );
7908 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7909 selections.select(new_selections)
7910 });
7911
7912 Ok(())
7913 }
7914
7915 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7916 self.push_to_selection_history();
7917 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7918 self.select_next_match_internal(
7919 &display_map,
7920 action.replace_newest,
7921 Some(Autoscroll::newest()),
7922 cx,
7923 )?;
7924 Ok(())
7925 }
7926
7927 pub fn select_previous(
7928 &mut self,
7929 action: &SelectPrevious,
7930 cx: &mut ViewContext<Self>,
7931 ) -> Result<()> {
7932 self.push_to_selection_history();
7933 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7934 let buffer = &display_map.buffer_snapshot;
7935 let mut selections = self.selections.all::<usize>(cx);
7936 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7937 let query = &select_prev_state.query;
7938 if !select_prev_state.done {
7939 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7940 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7941 let mut next_selected_range = None;
7942 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7943 let bytes_before_last_selection =
7944 buffer.reversed_bytes_in_range(0..last_selection.start);
7945 let bytes_after_first_selection =
7946 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7947 let query_matches = query
7948 .stream_find_iter(bytes_before_last_selection)
7949 .map(|result| (last_selection.start, result))
7950 .chain(
7951 query
7952 .stream_find_iter(bytes_after_first_selection)
7953 .map(|result| (buffer.len(), result)),
7954 );
7955 for (end_offset, query_match) in query_matches {
7956 let query_match = query_match.unwrap(); // can only fail due to I/O
7957 let offset_range =
7958 end_offset - query_match.end()..end_offset - query_match.start();
7959 let display_range = offset_range.start.to_display_point(&display_map)
7960 ..offset_range.end.to_display_point(&display_map);
7961
7962 if !select_prev_state.wordwise
7963 || (!movement::is_inside_word(&display_map, display_range.start)
7964 && !movement::is_inside_word(&display_map, display_range.end))
7965 {
7966 next_selected_range = Some(offset_range);
7967 break;
7968 }
7969 }
7970
7971 if let Some(next_selected_range) = next_selected_range {
7972 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7973 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7974 if action.replace_newest {
7975 s.delete(s.newest_anchor().id);
7976 }
7977 s.insert_range(next_selected_range);
7978 });
7979 } else {
7980 select_prev_state.done = true;
7981 }
7982 }
7983
7984 self.select_prev_state = Some(select_prev_state);
7985 } else {
7986 let mut only_carets = true;
7987 let mut same_text_selected = true;
7988 let mut selected_text = None;
7989
7990 let mut selections_iter = selections.iter().peekable();
7991 while let Some(selection) = selections_iter.next() {
7992 if selection.start != selection.end {
7993 only_carets = false;
7994 }
7995
7996 if same_text_selected {
7997 if selected_text.is_none() {
7998 selected_text =
7999 Some(buffer.text_for_range(selection.range()).collect::<String>());
8000 }
8001
8002 if let Some(next_selection) = selections_iter.peek() {
8003 if next_selection.range().len() == selection.range().len() {
8004 let next_selected_text = buffer
8005 .text_for_range(next_selection.range())
8006 .collect::<String>();
8007 if Some(next_selected_text) != selected_text {
8008 same_text_selected = false;
8009 selected_text = None;
8010 }
8011 } else {
8012 same_text_selected = false;
8013 selected_text = None;
8014 }
8015 }
8016 }
8017 }
8018
8019 if only_carets {
8020 for selection in &mut selections {
8021 let word_range = movement::surrounding_word(
8022 &display_map,
8023 selection.start.to_display_point(&display_map),
8024 );
8025 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8026 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8027 selection.goal = SelectionGoal::None;
8028 selection.reversed = false;
8029 }
8030 if selections.len() == 1 {
8031 let selection = selections
8032 .last()
8033 .expect("ensured that there's only one selection");
8034 let query = buffer
8035 .text_for_range(selection.start..selection.end)
8036 .collect::<String>();
8037 let is_empty = query.is_empty();
8038 let select_state = SelectNextState {
8039 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8040 wordwise: true,
8041 done: is_empty,
8042 };
8043 self.select_prev_state = Some(select_state);
8044 } else {
8045 self.select_prev_state = None;
8046 }
8047
8048 self.unfold_ranges(
8049 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8050 false,
8051 true,
8052 cx,
8053 );
8054 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8055 s.select(selections);
8056 });
8057 } else if let Some(selected_text) = selected_text {
8058 self.select_prev_state = Some(SelectNextState {
8059 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8060 wordwise: false,
8061 done: false,
8062 });
8063 self.select_previous(action, cx)?;
8064 }
8065 }
8066 Ok(())
8067 }
8068
8069 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8070 let text_layout_details = &self.text_layout_details(cx);
8071 self.transact(cx, |this, cx| {
8072 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8073 let mut edits = Vec::new();
8074 let mut selection_edit_ranges = Vec::new();
8075 let mut last_toggled_row = None;
8076 let snapshot = this.buffer.read(cx).read(cx);
8077 let empty_str: Arc<str> = "".into();
8078 let mut suffixes_inserted = Vec::new();
8079
8080 fn comment_prefix_range(
8081 snapshot: &MultiBufferSnapshot,
8082 row: MultiBufferRow,
8083 comment_prefix: &str,
8084 comment_prefix_whitespace: &str,
8085 ) -> Range<Point> {
8086 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8087
8088 let mut line_bytes = snapshot
8089 .bytes_in_range(start..snapshot.max_point())
8090 .flatten()
8091 .copied();
8092
8093 // If this line currently begins with the line comment prefix, then record
8094 // the range containing the prefix.
8095 if line_bytes
8096 .by_ref()
8097 .take(comment_prefix.len())
8098 .eq(comment_prefix.bytes())
8099 {
8100 // Include any whitespace that matches the comment prefix.
8101 let matching_whitespace_len = line_bytes
8102 .zip(comment_prefix_whitespace.bytes())
8103 .take_while(|(a, b)| a == b)
8104 .count() as u32;
8105 let end = Point::new(
8106 start.row,
8107 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8108 );
8109 start..end
8110 } else {
8111 start..start
8112 }
8113 }
8114
8115 fn comment_suffix_range(
8116 snapshot: &MultiBufferSnapshot,
8117 row: MultiBufferRow,
8118 comment_suffix: &str,
8119 comment_suffix_has_leading_space: bool,
8120 ) -> Range<Point> {
8121 let end = Point::new(row.0, snapshot.line_len(row));
8122 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8123
8124 let mut line_end_bytes = snapshot
8125 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8126 .flatten()
8127 .copied();
8128
8129 let leading_space_len = if suffix_start_column > 0
8130 && line_end_bytes.next() == Some(b' ')
8131 && comment_suffix_has_leading_space
8132 {
8133 1
8134 } else {
8135 0
8136 };
8137
8138 // If this line currently begins with the line comment prefix, then record
8139 // the range containing the prefix.
8140 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8141 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8142 start..end
8143 } else {
8144 end..end
8145 }
8146 }
8147
8148 // TODO: Handle selections that cross excerpts
8149 for selection in &mut selections {
8150 let start_column = snapshot
8151 .indent_size_for_line(MultiBufferRow(selection.start.row))
8152 .len;
8153 let language = if let Some(language) =
8154 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8155 {
8156 language
8157 } else {
8158 continue;
8159 };
8160
8161 selection_edit_ranges.clear();
8162
8163 // If multiple selections contain a given row, avoid processing that
8164 // row more than once.
8165 let mut start_row = MultiBufferRow(selection.start.row);
8166 if last_toggled_row == Some(start_row) {
8167 start_row = start_row.next_row();
8168 }
8169 let end_row =
8170 if selection.end.row > selection.start.row && selection.end.column == 0 {
8171 MultiBufferRow(selection.end.row - 1)
8172 } else {
8173 MultiBufferRow(selection.end.row)
8174 };
8175 last_toggled_row = Some(end_row);
8176
8177 if start_row > end_row {
8178 continue;
8179 }
8180
8181 // If the language has line comments, toggle those.
8182 let full_comment_prefixes = language.line_comment_prefixes();
8183 if !full_comment_prefixes.is_empty() {
8184 let first_prefix = full_comment_prefixes
8185 .first()
8186 .expect("prefixes is non-empty");
8187 let prefix_trimmed_lengths = full_comment_prefixes
8188 .iter()
8189 .map(|p| p.trim_end_matches(' ').len())
8190 .collect::<SmallVec<[usize; 4]>>();
8191
8192 let mut all_selection_lines_are_comments = true;
8193
8194 for row in start_row.0..=end_row.0 {
8195 let row = MultiBufferRow(row);
8196 if start_row < end_row && snapshot.is_line_blank(row) {
8197 continue;
8198 }
8199
8200 let prefix_range = full_comment_prefixes
8201 .iter()
8202 .zip(prefix_trimmed_lengths.iter().copied())
8203 .map(|(prefix, trimmed_prefix_len)| {
8204 comment_prefix_range(
8205 snapshot.deref(),
8206 row,
8207 &prefix[..trimmed_prefix_len],
8208 &prefix[trimmed_prefix_len..],
8209 )
8210 })
8211 .max_by_key(|range| range.end.column - range.start.column)
8212 .expect("prefixes is non-empty");
8213
8214 if prefix_range.is_empty() {
8215 all_selection_lines_are_comments = false;
8216 }
8217
8218 selection_edit_ranges.push(prefix_range);
8219 }
8220
8221 if all_selection_lines_are_comments {
8222 edits.extend(
8223 selection_edit_ranges
8224 .iter()
8225 .cloned()
8226 .map(|range| (range, empty_str.clone())),
8227 );
8228 } else {
8229 let min_column = selection_edit_ranges
8230 .iter()
8231 .map(|range| range.start.column)
8232 .min()
8233 .unwrap_or(0);
8234 edits.extend(selection_edit_ranges.iter().map(|range| {
8235 let position = Point::new(range.start.row, min_column);
8236 (position..position, first_prefix.clone())
8237 }));
8238 }
8239 } else if let Some((full_comment_prefix, comment_suffix)) =
8240 language.block_comment_delimiters()
8241 {
8242 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8243 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8244 let prefix_range = comment_prefix_range(
8245 snapshot.deref(),
8246 start_row,
8247 comment_prefix,
8248 comment_prefix_whitespace,
8249 );
8250 let suffix_range = comment_suffix_range(
8251 snapshot.deref(),
8252 end_row,
8253 comment_suffix.trim_start_matches(' '),
8254 comment_suffix.starts_with(' '),
8255 );
8256
8257 if prefix_range.is_empty() || suffix_range.is_empty() {
8258 edits.push((
8259 prefix_range.start..prefix_range.start,
8260 full_comment_prefix.clone(),
8261 ));
8262 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8263 suffixes_inserted.push((end_row, comment_suffix.len()));
8264 } else {
8265 edits.push((prefix_range, empty_str.clone()));
8266 edits.push((suffix_range, empty_str.clone()));
8267 }
8268 } else {
8269 continue;
8270 }
8271 }
8272
8273 drop(snapshot);
8274 this.buffer.update(cx, |buffer, cx| {
8275 buffer.edit(edits, None, cx);
8276 });
8277
8278 // Adjust selections so that they end before any comment suffixes that
8279 // were inserted.
8280 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8281 let mut selections = this.selections.all::<Point>(cx);
8282 let snapshot = this.buffer.read(cx).read(cx);
8283 for selection in &mut selections {
8284 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8285 match row.cmp(&MultiBufferRow(selection.end.row)) {
8286 Ordering::Less => {
8287 suffixes_inserted.next();
8288 continue;
8289 }
8290 Ordering::Greater => break,
8291 Ordering::Equal => {
8292 if selection.end.column == snapshot.line_len(row) {
8293 if selection.is_empty() {
8294 selection.start.column -= suffix_len as u32;
8295 }
8296 selection.end.column -= suffix_len as u32;
8297 }
8298 break;
8299 }
8300 }
8301 }
8302 }
8303
8304 drop(snapshot);
8305 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8306
8307 let selections = this.selections.all::<Point>(cx);
8308 let selections_on_single_row = selections.windows(2).all(|selections| {
8309 selections[0].start.row == selections[1].start.row
8310 && selections[0].end.row == selections[1].end.row
8311 && selections[0].start.row == selections[0].end.row
8312 });
8313 let selections_selecting = selections
8314 .iter()
8315 .any(|selection| selection.start != selection.end);
8316 let advance_downwards = action.advance_downwards
8317 && selections_on_single_row
8318 && !selections_selecting
8319 && !matches!(this.mode, EditorMode::SingleLine { .. });
8320
8321 if advance_downwards {
8322 let snapshot = this.buffer.read(cx).snapshot(cx);
8323
8324 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8325 s.move_cursors_with(|display_snapshot, display_point, _| {
8326 let mut point = display_point.to_point(display_snapshot);
8327 point.row += 1;
8328 point = snapshot.clip_point(point, Bias::Left);
8329 let display_point = point.to_display_point(display_snapshot);
8330 let goal = SelectionGoal::HorizontalPosition(
8331 display_snapshot
8332 .x_for_display_point(display_point, &text_layout_details)
8333 .into(),
8334 );
8335 (display_point, goal)
8336 })
8337 });
8338 }
8339 });
8340 }
8341
8342 pub fn select_enclosing_symbol(
8343 &mut self,
8344 _: &SelectEnclosingSymbol,
8345 cx: &mut ViewContext<Self>,
8346 ) {
8347 let buffer = self.buffer.read(cx).snapshot(cx);
8348 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8349
8350 fn update_selection(
8351 selection: &Selection<usize>,
8352 buffer_snap: &MultiBufferSnapshot,
8353 ) -> Option<Selection<usize>> {
8354 let cursor = selection.head();
8355 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8356 for symbol in symbols.iter().rev() {
8357 let start = symbol.range.start.to_offset(&buffer_snap);
8358 let end = symbol.range.end.to_offset(&buffer_snap);
8359 let new_range = start..end;
8360 if start < selection.start || end > selection.end {
8361 return Some(Selection {
8362 id: selection.id,
8363 start: new_range.start,
8364 end: new_range.end,
8365 goal: SelectionGoal::None,
8366 reversed: selection.reversed,
8367 });
8368 }
8369 }
8370 None
8371 }
8372
8373 let mut selected_larger_symbol = false;
8374 let new_selections = old_selections
8375 .iter()
8376 .map(|selection| match update_selection(selection, &buffer) {
8377 Some(new_selection) => {
8378 if new_selection.range() != selection.range() {
8379 selected_larger_symbol = true;
8380 }
8381 new_selection
8382 }
8383 None => selection.clone(),
8384 })
8385 .collect::<Vec<_>>();
8386
8387 if selected_larger_symbol {
8388 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8389 s.select(new_selections);
8390 });
8391 }
8392 }
8393
8394 pub fn select_larger_syntax_node(
8395 &mut self,
8396 _: &SelectLargerSyntaxNode,
8397 cx: &mut ViewContext<Self>,
8398 ) {
8399 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8400 let buffer = self.buffer.read(cx).snapshot(cx);
8401 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8402
8403 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8404 let mut selected_larger_node = false;
8405 let new_selections = old_selections
8406 .iter()
8407 .map(|selection| {
8408 let old_range = selection.start..selection.end;
8409 let mut new_range = old_range.clone();
8410 while let Some(containing_range) =
8411 buffer.range_for_syntax_ancestor(new_range.clone())
8412 {
8413 new_range = containing_range;
8414 if !display_map.intersects_fold(new_range.start)
8415 && !display_map.intersects_fold(new_range.end)
8416 {
8417 break;
8418 }
8419 }
8420
8421 selected_larger_node |= new_range != old_range;
8422 Selection {
8423 id: selection.id,
8424 start: new_range.start,
8425 end: new_range.end,
8426 goal: SelectionGoal::None,
8427 reversed: selection.reversed,
8428 }
8429 })
8430 .collect::<Vec<_>>();
8431
8432 if selected_larger_node {
8433 stack.push(old_selections);
8434 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8435 s.select(new_selections);
8436 });
8437 }
8438 self.select_larger_syntax_node_stack = stack;
8439 }
8440
8441 pub fn select_smaller_syntax_node(
8442 &mut self,
8443 _: &SelectSmallerSyntaxNode,
8444 cx: &mut ViewContext<Self>,
8445 ) {
8446 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8447 if let Some(selections) = stack.pop() {
8448 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8449 s.select(selections.to_vec());
8450 });
8451 }
8452 self.select_larger_syntax_node_stack = stack;
8453 }
8454
8455 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8456 if !EditorSettings::get_global(cx).gutter.runnables {
8457 self.clear_tasks();
8458 return Task::ready(());
8459 }
8460 let project = self.project.clone();
8461 cx.spawn(|this, mut cx| async move {
8462 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8463 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8464 }) else {
8465 return;
8466 };
8467
8468 let Some(project) = project else {
8469 return;
8470 };
8471
8472 let hide_runnables = project
8473 .update(&mut cx, |project, cx| {
8474 // Do not display any test indicators in non-dev server remote projects.
8475 project.is_remote() && project.ssh_connection_string(cx).is_none()
8476 })
8477 .unwrap_or(true);
8478 if hide_runnables {
8479 return;
8480 }
8481 let new_rows =
8482 cx.background_executor()
8483 .spawn({
8484 let snapshot = display_snapshot.clone();
8485 async move {
8486 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8487 }
8488 })
8489 .await;
8490 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8491
8492 this.update(&mut cx, |this, _| {
8493 this.clear_tasks();
8494 for (key, value) in rows {
8495 this.insert_tasks(key, value);
8496 }
8497 })
8498 .ok();
8499 })
8500 }
8501 fn fetch_runnable_ranges(
8502 snapshot: &DisplaySnapshot,
8503 range: Range<Anchor>,
8504 ) -> Vec<language::RunnableRange> {
8505 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8506 }
8507
8508 fn runnable_rows(
8509 project: Model<Project>,
8510 snapshot: DisplaySnapshot,
8511 runnable_ranges: Vec<RunnableRange>,
8512 mut cx: AsyncWindowContext,
8513 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8514 runnable_ranges
8515 .into_iter()
8516 .filter_map(|mut runnable| {
8517 let tasks = cx
8518 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8519 .ok()?;
8520 if tasks.is_empty() {
8521 return None;
8522 }
8523
8524 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8525
8526 let row = snapshot
8527 .buffer_snapshot
8528 .buffer_line_for_row(MultiBufferRow(point.row))?
8529 .1
8530 .start
8531 .row;
8532
8533 let context_range =
8534 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8535 Some((
8536 (runnable.buffer_id, row),
8537 RunnableTasks {
8538 templates: tasks,
8539 offset: MultiBufferOffset(runnable.run_range.start),
8540 context_range,
8541 column: point.column,
8542 extra_variables: runnable.extra_captures,
8543 },
8544 ))
8545 })
8546 .collect()
8547 }
8548
8549 fn templates_with_tags(
8550 project: &Model<Project>,
8551 runnable: &mut Runnable,
8552 cx: &WindowContext<'_>,
8553 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8554 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8555 let (worktree_id, file) = project
8556 .buffer_for_id(runnable.buffer, cx)
8557 .and_then(|buffer| buffer.read(cx).file())
8558 .map(|file| (WorktreeId::from_usize(file.worktree_id()), file.clone()))
8559 .unzip();
8560
8561 (project.task_inventory().clone(), worktree_id, file)
8562 });
8563
8564 let inventory = inventory.read(cx);
8565 let tags = mem::take(&mut runnable.tags);
8566 let mut tags: Vec<_> = tags
8567 .into_iter()
8568 .flat_map(|tag| {
8569 let tag = tag.0.clone();
8570 inventory
8571 .list_tasks(
8572 file.clone(),
8573 Some(runnable.language.clone()),
8574 worktree_id,
8575 cx,
8576 )
8577 .into_iter()
8578 .filter(move |(_, template)| {
8579 template.tags.iter().any(|source_tag| source_tag == &tag)
8580 })
8581 })
8582 .sorted_by_key(|(kind, _)| kind.to_owned())
8583 .collect();
8584 if let Some((leading_tag_source, _)) = tags.first() {
8585 // Strongest source wins; if we have worktree tag binding, prefer that to
8586 // global and language bindings;
8587 // if we have a global binding, prefer that to language binding.
8588 let first_mismatch = tags
8589 .iter()
8590 .position(|(tag_source, _)| tag_source != leading_tag_source);
8591 if let Some(index) = first_mismatch {
8592 tags.truncate(index);
8593 }
8594 }
8595
8596 tags
8597 }
8598
8599 pub fn move_to_enclosing_bracket(
8600 &mut self,
8601 _: &MoveToEnclosingBracket,
8602 cx: &mut ViewContext<Self>,
8603 ) {
8604 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8605 s.move_offsets_with(|snapshot, selection| {
8606 let Some(enclosing_bracket_ranges) =
8607 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8608 else {
8609 return;
8610 };
8611
8612 let mut best_length = usize::MAX;
8613 let mut best_inside = false;
8614 let mut best_in_bracket_range = false;
8615 let mut best_destination = None;
8616 for (open, close) in enclosing_bracket_ranges {
8617 let close = close.to_inclusive();
8618 let length = close.end() - open.start;
8619 let inside = selection.start >= open.end && selection.end <= *close.start();
8620 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8621 || close.contains(&selection.head());
8622
8623 // If best is next to a bracket and current isn't, skip
8624 if !in_bracket_range && best_in_bracket_range {
8625 continue;
8626 }
8627
8628 // Prefer smaller lengths unless best is inside and current isn't
8629 if length > best_length && (best_inside || !inside) {
8630 continue;
8631 }
8632
8633 best_length = length;
8634 best_inside = inside;
8635 best_in_bracket_range = in_bracket_range;
8636 best_destination = Some(
8637 if close.contains(&selection.start) && close.contains(&selection.end) {
8638 if inside {
8639 open.end
8640 } else {
8641 open.start
8642 }
8643 } else {
8644 if inside {
8645 *close.start()
8646 } else {
8647 *close.end()
8648 }
8649 },
8650 );
8651 }
8652
8653 if let Some(destination) = best_destination {
8654 selection.collapse_to(destination, SelectionGoal::None);
8655 }
8656 })
8657 });
8658 }
8659
8660 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8661 self.end_selection(cx);
8662 self.selection_history.mode = SelectionHistoryMode::Undoing;
8663 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8664 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8665 self.select_next_state = entry.select_next_state;
8666 self.select_prev_state = entry.select_prev_state;
8667 self.add_selections_state = entry.add_selections_state;
8668 self.request_autoscroll(Autoscroll::newest(), cx);
8669 }
8670 self.selection_history.mode = SelectionHistoryMode::Normal;
8671 }
8672
8673 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8674 self.end_selection(cx);
8675 self.selection_history.mode = SelectionHistoryMode::Redoing;
8676 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8677 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8678 self.select_next_state = entry.select_next_state;
8679 self.select_prev_state = entry.select_prev_state;
8680 self.add_selections_state = entry.add_selections_state;
8681 self.request_autoscroll(Autoscroll::newest(), cx);
8682 }
8683 self.selection_history.mode = SelectionHistoryMode::Normal;
8684 }
8685
8686 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8687 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8688 }
8689
8690 pub fn expand_excerpts_down(
8691 &mut self,
8692 action: &ExpandExcerptsDown,
8693 cx: &mut ViewContext<Self>,
8694 ) {
8695 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8696 }
8697
8698 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8699 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8700 }
8701
8702 pub fn expand_excerpts_for_direction(
8703 &mut self,
8704 lines: u32,
8705 direction: ExpandExcerptDirection,
8706 cx: &mut ViewContext<Self>,
8707 ) {
8708 let selections = self.selections.disjoint_anchors();
8709
8710 let lines = if lines == 0 {
8711 EditorSettings::get_global(cx).expand_excerpt_lines
8712 } else {
8713 lines
8714 };
8715
8716 self.buffer.update(cx, |buffer, cx| {
8717 buffer.expand_excerpts(
8718 selections
8719 .into_iter()
8720 .map(|selection| selection.head().excerpt_id)
8721 .dedup(),
8722 lines,
8723 direction,
8724 cx,
8725 )
8726 })
8727 }
8728
8729 pub fn expand_excerpt(
8730 &mut self,
8731 excerpt: ExcerptId,
8732 direction: ExpandExcerptDirection,
8733 cx: &mut ViewContext<Self>,
8734 ) {
8735 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8736 self.buffer.update(cx, |buffer, cx| {
8737 buffer.expand_excerpts([excerpt], lines, direction, cx)
8738 })
8739 }
8740
8741 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8742 self.go_to_diagnostic_impl(Direction::Next, cx)
8743 }
8744
8745 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8746 self.go_to_diagnostic_impl(Direction::Prev, cx)
8747 }
8748
8749 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8750 let buffer = self.buffer.read(cx).snapshot(cx);
8751 let selection = self.selections.newest::<usize>(cx);
8752
8753 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8754 if direction == Direction::Next {
8755 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8756 let (group_id, jump_to) = popover.activation_info();
8757 if self.activate_diagnostics(group_id, cx) {
8758 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8759 let mut new_selection = s.newest_anchor().clone();
8760 new_selection.collapse_to(jump_to, SelectionGoal::None);
8761 s.select_anchors(vec![new_selection.clone()]);
8762 });
8763 }
8764 return;
8765 }
8766 }
8767
8768 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8769 active_diagnostics
8770 .primary_range
8771 .to_offset(&buffer)
8772 .to_inclusive()
8773 });
8774 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8775 if active_primary_range.contains(&selection.head()) {
8776 *active_primary_range.start()
8777 } else {
8778 selection.head()
8779 }
8780 } else {
8781 selection.head()
8782 };
8783 let snapshot = self.snapshot(cx);
8784 loop {
8785 let diagnostics = if direction == Direction::Prev {
8786 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8787 } else {
8788 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8789 }
8790 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8791 let group = diagnostics
8792 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8793 // be sorted in a stable way
8794 // skip until we are at current active diagnostic, if it exists
8795 .skip_while(|entry| {
8796 (match direction {
8797 Direction::Prev => entry.range.start >= search_start,
8798 Direction::Next => entry.range.start <= search_start,
8799 }) && self
8800 .active_diagnostics
8801 .as_ref()
8802 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8803 })
8804 .find_map(|entry| {
8805 if entry.diagnostic.is_primary
8806 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8807 && !entry.range.is_empty()
8808 // if we match with the active diagnostic, skip it
8809 && Some(entry.diagnostic.group_id)
8810 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8811 {
8812 Some((entry.range, entry.diagnostic.group_id))
8813 } else {
8814 None
8815 }
8816 });
8817
8818 if let Some((primary_range, group_id)) = group {
8819 if self.activate_diagnostics(group_id, cx) {
8820 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8821 s.select(vec![Selection {
8822 id: selection.id,
8823 start: primary_range.start,
8824 end: primary_range.start,
8825 reversed: false,
8826 goal: SelectionGoal::None,
8827 }]);
8828 });
8829 }
8830 break;
8831 } else {
8832 // Cycle around to the start of the buffer, potentially moving back to the start of
8833 // the currently active diagnostic.
8834 active_primary_range.take();
8835 if direction == Direction::Prev {
8836 if search_start == buffer.len() {
8837 break;
8838 } else {
8839 search_start = buffer.len();
8840 }
8841 } else if search_start == 0 {
8842 break;
8843 } else {
8844 search_start = 0;
8845 }
8846 }
8847 }
8848 }
8849
8850 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8851 let snapshot = self
8852 .display_map
8853 .update(cx, |display_map, cx| display_map.snapshot(cx));
8854 let selection = self.selections.newest::<Point>(cx);
8855
8856 if !self.seek_in_direction(
8857 &snapshot,
8858 selection.head(),
8859 false,
8860 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8861 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8862 ),
8863 cx,
8864 ) {
8865 let wrapped_point = Point::zero();
8866 self.seek_in_direction(
8867 &snapshot,
8868 wrapped_point,
8869 true,
8870 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8871 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8872 ),
8873 cx,
8874 );
8875 }
8876 }
8877
8878 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8879 let snapshot = self
8880 .display_map
8881 .update(cx, |display_map, cx| display_map.snapshot(cx));
8882 let selection = self.selections.newest::<Point>(cx);
8883
8884 if !self.seek_in_direction(
8885 &snapshot,
8886 selection.head(),
8887 false,
8888 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8889 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8890 ),
8891 cx,
8892 ) {
8893 let wrapped_point = snapshot.buffer_snapshot.max_point();
8894 self.seek_in_direction(
8895 &snapshot,
8896 wrapped_point,
8897 true,
8898 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8899 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8900 ),
8901 cx,
8902 );
8903 }
8904 }
8905
8906 fn seek_in_direction(
8907 &mut self,
8908 snapshot: &DisplaySnapshot,
8909 initial_point: Point,
8910 is_wrapped: bool,
8911 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8912 cx: &mut ViewContext<Editor>,
8913 ) -> bool {
8914 let display_point = initial_point.to_display_point(snapshot);
8915 let mut hunks = hunks
8916 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8917 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
8918 .dedup();
8919
8920 if let Some(hunk) = hunks.next() {
8921 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8922 let row = hunk.start_display_row();
8923 let point = DisplayPoint::new(row, 0);
8924 s.select_display_ranges([point..point]);
8925 });
8926
8927 true
8928 } else {
8929 false
8930 }
8931 }
8932
8933 pub fn go_to_definition(
8934 &mut self,
8935 _: &GoToDefinition,
8936 cx: &mut ViewContext<Self>,
8937 ) -> Task<Result<bool>> {
8938 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8939 }
8940
8941 pub fn go_to_implementation(
8942 &mut self,
8943 _: &GoToImplementation,
8944 cx: &mut ViewContext<Self>,
8945 ) -> Task<Result<bool>> {
8946 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8947 }
8948
8949 pub fn go_to_implementation_split(
8950 &mut self,
8951 _: &GoToImplementationSplit,
8952 cx: &mut ViewContext<Self>,
8953 ) -> Task<Result<bool>> {
8954 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8955 }
8956
8957 pub fn go_to_type_definition(
8958 &mut self,
8959 _: &GoToTypeDefinition,
8960 cx: &mut ViewContext<Self>,
8961 ) -> Task<Result<bool>> {
8962 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8963 }
8964
8965 pub fn go_to_definition_split(
8966 &mut self,
8967 _: &GoToDefinitionSplit,
8968 cx: &mut ViewContext<Self>,
8969 ) -> Task<Result<bool>> {
8970 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8971 }
8972
8973 pub fn go_to_type_definition_split(
8974 &mut self,
8975 _: &GoToTypeDefinitionSplit,
8976 cx: &mut ViewContext<Self>,
8977 ) -> Task<Result<bool>> {
8978 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8979 }
8980
8981 fn go_to_definition_of_kind(
8982 &mut self,
8983 kind: GotoDefinitionKind,
8984 split: bool,
8985 cx: &mut ViewContext<Self>,
8986 ) -> Task<Result<bool>> {
8987 let Some(workspace) = self.workspace() else {
8988 return Task::ready(Ok(false));
8989 };
8990 let buffer = self.buffer.read(cx);
8991 let head = self.selections.newest::<usize>(cx).head();
8992 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8993 text_anchor
8994 } else {
8995 return Task::ready(Ok(false));
8996 };
8997
8998 let project = workspace.read(cx).project().clone();
8999 let definitions = project.update(cx, |project, cx| match kind {
9000 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
9001 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
9002 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
9003 });
9004
9005 cx.spawn(|editor, mut cx| async move {
9006 let definitions = definitions.await?;
9007 let navigated = editor
9008 .update(&mut cx, |editor, cx| {
9009 editor.navigate_to_hover_links(
9010 Some(kind),
9011 definitions
9012 .into_iter()
9013 .filter(|location| {
9014 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9015 })
9016 .map(HoverLink::Text)
9017 .collect::<Vec<_>>(),
9018 split,
9019 cx,
9020 )
9021 })?
9022 .await?;
9023 anyhow::Ok(navigated)
9024 })
9025 }
9026
9027 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9028 let position = self.selections.newest_anchor().head();
9029 let Some((buffer, buffer_position)) =
9030 self.buffer.read(cx).text_anchor_for_position(position, cx)
9031 else {
9032 return;
9033 };
9034
9035 cx.spawn(|editor, mut cx| async move {
9036 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9037 editor.update(&mut cx, |_, cx| {
9038 cx.open_url(&url);
9039 })
9040 } else {
9041 Ok(())
9042 }
9043 })
9044 .detach();
9045 }
9046
9047 pub(crate) fn navigate_to_hover_links(
9048 &mut self,
9049 kind: Option<GotoDefinitionKind>,
9050 mut definitions: Vec<HoverLink>,
9051 split: bool,
9052 cx: &mut ViewContext<Editor>,
9053 ) -> Task<Result<bool>> {
9054 // If there is one definition, just open it directly
9055 if definitions.len() == 1 {
9056 let definition = definitions.pop().unwrap();
9057 let target_task = match definition {
9058 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9059 HoverLink::InlayHint(lsp_location, server_id) => {
9060 self.compute_target_location(lsp_location, server_id, cx)
9061 }
9062 HoverLink::Url(url) => {
9063 cx.open_url(&url);
9064 Task::ready(Ok(None))
9065 }
9066 };
9067 cx.spawn(|editor, mut cx| async move {
9068 let target = target_task.await.context("target resolution task")?;
9069 if let Some(target) = target {
9070 editor.update(&mut cx, |editor, cx| {
9071 let Some(workspace) = editor.workspace() else {
9072 return false;
9073 };
9074 let pane = workspace.read(cx).active_pane().clone();
9075
9076 let range = target.range.to_offset(target.buffer.read(cx));
9077 let range = editor.range_for_match(&range);
9078
9079 /// If select range has more than one line, we
9080 /// just point the cursor to range.start.
9081 fn check_multiline_range(
9082 buffer: &Buffer,
9083 range: Range<usize>,
9084 ) -> Range<usize> {
9085 if buffer.offset_to_point(range.start).row
9086 == buffer.offset_to_point(range.end).row
9087 {
9088 range
9089 } else {
9090 range.start..range.start
9091 }
9092 }
9093
9094 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9095 let buffer = target.buffer.read(cx);
9096 let range = check_multiline_range(buffer, range);
9097 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9098 s.select_ranges([range]);
9099 });
9100 } else {
9101 cx.window_context().defer(move |cx| {
9102 let target_editor: View<Self> =
9103 workspace.update(cx, |workspace, cx| {
9104 let pane = if split {
9105 workspace.adjacent_pane(cx)
9106 } else {
9107 workspace.active_pane().clone()
9108 };
9109
9110 workspace.open_project_item(
9111 pane,
9112 target.buffer.clone(),
9113 true,
9114 true,
9115 cx,
9116 )
9117 });
9118 target_editor.update(cx, |target_editor, cx| {
9119 // When selecting a definition in a different buffer, disable the nav history
9120 // to avoid creating a history entry at the previous cursor location.
9121 pane.update(cx, |pane, _| pane.disable_history());
9122 let buffer = target.buffer.read(cx);
9123 let range = check_multiline_range(buffer, range);
9124 target_editor.change_selections(
9125 Some(Autoscroll::focused()),
9126 cx,
9127 |s| {
9128 s.select_ranges([range]);
9129 },
9130 );
9131 pane.update(cx, |pane, _| pane.enable_history());
9132 });
9133 });
9134 }
9135 true
9136 })
9137 } else {
9138 Ok(false)
9139 }
9140 })
9141 } else if !definitions.is_empty() {
9142 let replica_id = self.replica_id(cx);
9143 cx.spawn(|editor, mut cx| async move {
9144 let (title, location_tasks, workspace) = editor
9145 .update(&mut cx, |editor, cx| {
9146 let tab_kind = match kind {
9147 Some(GotoDefinitionKind::Implementation) => "Implementations",
9148 _ => "Definitions",
9149 };
9150 let title = definitions
9151 .iter()
9152 .find_map(|definition| match definition {
9153 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9154 let buffer = origin.buffer.read(cx);
9155 format!(
9156 "{} for {}",
9157 tab_kind,
9158 buffer
9159 .text_for_range(origin.range.clone())
9160 .collect::<String>()
9161 )
9162 }),
9163 HoverLink::InlayHint(_, _) => None,
9164 HoverLink::Url(_) => None,
9165 })
9166 .unwrap_or(tab_kind.to_string());
9167 let location_tasks = definitions
9168 .into_iter()
9169 .map(|definition| match definition {
9170 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9171 HoverLink::InlayHint(lsp_location, server_id) => {
9172 editor.compute_target_location(lsp_location, server_id, cx)
9173 }
9174 HoverLink::Url(_) => Task::ready(Ok(None)),
9175 })
9176 .collect::<Vec<_>>();
9177 (title, location_tasks, editor.workspace().clone())
9178 })
9179 .context("location tasks preparation")?;
9180
9181 let locations = futures::future::join_all(location_tasks)
9182 .await
9183 .into_iter()
9184 .filter_map(|location| location.transpose())
9185 .collect::<Result<_>>()
9186 .context("location tasks")?;
9187
9188 let Some(workspace) = workspace else {
9189 return Ok(false);
9190 };
9191 let opened = workspace
9192 .update(&mut cx, |workspace, cx| {
9193 Self::open_locations_in_multibuffer(
9194 workspace, locations, replica_id, title, split, cx,
9195 )
9196 })
9197 .ok();
9198
9199 anyhow::Ok(opened.is_some())
9200 })
9201 } else {
9202 Task::ready(Ok(false))
9203 }
9204 }
9205
9206 fn compute_target_location(
9207 &self,
9208 lsp_location: lsp::Location,
9209 server_id: LanguageServerId,
9210 cx: &mut ViewContext<Editor>,
9211 ) -> Task<anyhow::Result<Option<Location>>> {
9212 let Some(project) = self.project.clone() else {
9213 return Task::Ready(Some(Ok(None)));
9214 };
9215
9216 cx.spawn(move |editor, mut cx| async move {
9217 let location_task = editor.update(&mut cx, |editor, cx| {
9218 project.update(cx, |project, cx| {
9219 let language_server_name =
9220 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9221 project
9222 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9223 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9224 });
9225 language_server_name.map(|language_server_name| {
9226 project.open_local_buffer_via_lsp(
9227 lsp_location.uri.clone(),
9228 server_id,
9229 language_server_name,
9230 cx,
9231 )
9232 })
9233 })
9234 })?;
9235 let location = match location_task {
9236 Some(task) => Some({
9237 let target_buffer_handle = task.await.context("open local buffer")?;
9238 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9239 let target_start = target_buffer
9240 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9241 let target_end = target_buffer
9242 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9243 target_buffer.anchor_after(target_start)
9244 ..target_buffer.anchor_before(target_end)
9245 })?;
9246 Location {
9247 buffer: target_buffer_handle,
9248 range,
9249 }
9250 }),
9251 None => None,
9252 };
9253 Ok(location)
9254 })
9255 }
9256
9257 pub fn find_all_references(
9258 &mut self,
9259 _: &FindAllReferences,
9260 cx: &mut ViewContext<Self>,
9261 ) -> Option<Task<Result<()>>> {
9262 let multi_buffer = self.buffer.read(cx);
9263 let selection = self.selections.newest::<usize>(cx);
9264 let head = selection.head();
9265
9266 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9267 let head_anchor = multi_buffer_snapshot.anchor_at(
9268 head,
9269 if head < selection.tail() {
9270 Bias::Right
9271 } else {
9272 Bias::Left
9273 },
9274 );
9275
9276 match self
9277 .find_all_references_task_sources
9278 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9279 {
9280 Ok(_) => {
9281 log::info!(
9282 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9283 );
9284 return None;
9285 }
9286 Err(i) => {
9287 self.find_all_references_task_sources.insert(i, head_anchor);
9288 }
9289 }
9290
9291 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9292 let replica_id = self.replica_id(cx);
9293 let workspace = self.workspace()?;
9294 let project = workspace.read(cx).project().clone();
9295 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9296 Some(cx.spawn(|editor, mut cx| async move {
9297 let _cleanup = defer({
9298 let mut cx = cx.clone();
9299 move || {
9300 let _ = editor.update(&mut cx, |editor, _| {
9301 if let Ok(i) =
9302 editor
9303 .find_all_references_task_sources
9304 .binary_search_by(|anchor| {
9305 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9306 })
9307 {
9308 editor.find_all_references_task_sources.remove(i);
9309 }
9310 });
9311 }
9312 });
9313
9314 let locations = references.await?;
9315 if locations.is_empty() {
9316 return anyhow::Ok(());
9317 }
9318
9319 workspace.update(&mut cx, |workspace, cx| {
9320 let title = locations
9321 .first()
9322 .as_ref()
9323 .map(|location| {
9324 let buffer = location.buffer.read(cx);
9325 format!(
9326 "References to `{}`",
9327 buffer
9328 .text_for_range(location.range.clone())
9329 .collect::<String>()
9330 )
9331 })
9332 .unwrap();
9333 Self::open_locations_in_multibuffer(
9334 workspace, locations, replica_id, title, false, cx,
9335 );
9336 })
9337 }))
9338 }
9339
9340 /// Opens a multibuffer with the given project locations in it
9341 pub fn open_locations_in_multibuffer(
9342 workspace: &mut Workspace,
9343 mut locations: Vec<Location>,
9344 replica_id: ReplicaId,
9345 title: String,
9346 split: bool,
9347 cx: &mut ViewContext<Workspace>,
9348 ) {
9349 // If there are multiple definitions, open them in a multibuffer
9350 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9351 let mut locations = locations.into_iter().peekable();
9352 let mut ranges_to_highlight = Vec::new();
9353 let capability = workspace.project().read(cx).capability();
9354
9355 let excerpt_buffer = cx.new_model(|cx| {
9356 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9357 while let Some(location) = locations.next() {
9358 let buffer = location.buffer.read(cx);
9359 let mut ranges_for_buffer = Vec::new();
9360 let range = location.range.to_offset(buffer);
9361 ranges_for_buffer.push(range.clone());
9362
9363 while let Some(next_location) = locations.peek() {
9364 if next_location.buffer == location.buffer {
9365 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9366 locations.next();
9367 } else {
9368 break;
9369 }
9370 }
9371
9372 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9373 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9374 location.buffer.clone(),
9375 ranges_for_buffer,
9376 DEFAULT_MULTIBUFFER_CONTEXT,
9377 cx,
9378 ))
9379 }
9380
9381 multibuffer.with_title(title)
9382 });
9383
9384 let editor = cx.new_view(|cx| {
9385 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9386 });
9387 editor.update(cx, |editor, cx| {
9388 if let Some(first_range) = ranges_to_highlight.first() {
9389 editor.change_selections(None, cx, |selections| {
9390 selections.clear_disjoint();
9391 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9392 });
9393 }
9394 editor.highlight_background::<Self>(
9395 &ranges_to_highlight,
9396 |theme| theme.editor_highlighted_line_background,
9397 cx,
9398 );
9399 });
9400
9401 let item = Box::new(editor);
9402 let item_id = item.item_id();
9403
9404 if split {
9405 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9406 } else {
9407 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9408 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9409 pane.close_current_preview_item(cx)
9410 } else {
9411 None
9412 }
9413 });
9414 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9415 }
9416 workspace.active_pane().update(cx, |pane, cx| {
9417 pane.set_preview_item_id(Some(item_id), cx);
9418 });
9419 }
9420
9421 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9422 use language::ToOffset as _;
9423
9424 let project = self.project.clone()?;
9425 let selection = self.selections.newest_anchor().clone();
9426 let (cursor_buffer, cursor_buffer_position) = self
9427 .buffer
9428 .read(cx)
9429 .text_anchor_for_position(selection.head(), cx)?;
9430 let (tail_buffer, cursor_buffer_position_end) = self
9431 .buffer
9432 .read(cx)
9433 .text_anchor_for_position(selection.tail(), cx)?;
9434 if tail_buffer != cursor_buffer {
9435 return None;
9436 }
9437
9438 let snapshot = cursor_buffer.read(cx).snapshot();
9439 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9440 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9441 let prepare_rename = project.update(cx, |project, cx| {
9442 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9443 });
9444 drop(snapshot);
9445
9446 Some(cx.spawn(|this, mut cx| async move {
9447 let rename_range = if let Some(range) = prepare_rename.await? {
9448 Some(range)
9449 } else {
9450 this.update(&mut cx, |this, cx| {
9451 let buffer = this.buffer.read(cx).snapshot(cx);
9452 let mut buffer_highlights = this
9453 .document_highlights_for_position(selection.head(), &buffer)
9454 .filter(|highlight| {
9455 highlight.start.excerpt_id == selection.head().excerpt_id
9456 && highlight.end.excerpt_id == selection.head().excerpt_id
9457 });
9458 buffer_highlights
9459 .next()
9460 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9461 })?
9462 };
9463 if let Some(rename_range) = rename_range {
9464 this.update(&mut cx, |this, cx| {
9465 let snapshot = cursor_buffer.read(cx).snapshot();
9466 let rename_buffer_range = rename_range.to_offset(&snapshot);
9467 let cursor_offset_in_rename_range =
9468 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9469 let cursor_offset_in_rename_range_end =
9470 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9471
9472 this.take_rename(false, cx);
9473 let buffer = this.buffer.read(cx).read(cx);
9474 let cursor_offset = selection.head().to_offset(&buffer);
9475 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9476 let rename_end = rename_start + rename_buffer_range.len();
9477 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9478 let mut old_highlight_id = None;
9479 let old_name: Arc<str> = buffer
9480 .chunks(rename_start..rename_end, true)
9481 .map(|chunk| {
9482 if old_highlight_id.is_none() {
9483 old_highlight_id = chunk.syntax_highlight_id;
9484 }
9485 chunk.text
9486 })
9487 .collect::<String>()
9488 .into();
9489
9490 drop(buffer);
9491
9492 // Position the selection in the rename editor so that it matches the current selection.
9493 this.show_local_selections = false;
9494 let rename_editor = cx.new_view(|cx| {
9495 let mut editor = Editor::single_line(cx);
9496 editor.buffer.update(cx, |buffer, cx| {
9497 buffer.edit([(0..0, old_name.clone())], None, cx)
9498 });
9499 let rename_selection_range = match cursor_offset_in_rename_range
9500 .cmp(&cursor_offset_in_rename_range_end)
9501 {
9502 Ordering::Equal => {
9503 editor.select_all(&SelectAll, cx);
9504 return editor;
9505 }
9506 Ordering::Less => {
9507 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9508 }
9509 Ordering::Greater => {
9510 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9511 }
9512 };
9513 if rename_selection_range.end > old_name.len() {
9514 editor.select_all(&SelectAll, cx);
9515 } else {
9516 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9517 s.select_ranges([rename_selection_range]);
9518 });
9519 }
9520 editor
9521 });
9522 cx.subscribe(&rename_editor, |_, _, e, cx| match e {
9523 EditorEvent::Focused => cx.emit(EditorEvent::FocusedIn),
9524 _ => {}
9525 })
9526 .detach();
9527
9528 let write_highlights =
9529 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9530 let read_highlights =
9531 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9532 let ranges = write_highlights
9533 .iter()
9534 .flat_map(|(_, ranges)| ranges.iter())
9535 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9536 .cloned()
9537 .collect();
9538
9539 this.highlight_text::<Rename>(
9540 ranges,
9541 HighlightStyle {
9542 fade_out: Some(0.6),
9543 ..Default::default()
9544 },
9545 cx,
9546 );
9547 let rename_focus_handle = rename_editor.focus_handle(cx);
9548 cx.focus(&rename_focus_handle);
9549 let block_id = this.insert_blocks(
9550 [BlockProperties {
9551 style: BlockStyle::Flex,
9552 position: range.start,
9553 height: 1,
9554 render: Box::new({
9555 let rename_editor = rename_editor.clone();
9556 move |cx: &mut BlockContext| {
9557 let mut text_style = cx.editor_style.text.clone();
9558 if let Some(highlight_style) = old_highlight_id
9559 .and_then(|h| h.style(&cx.editor_style.syntax))
9560 {
9561 text_style = text_style.highlight(highlight_style);
9562 }
9563 div()
9564 .pl(cx.anchor_x)
9565 .child(EditorElement::new(
9566 &rename_editor,
9567 EditorStyle {
9568 background: cx.theme().system().transparent,
9569 local_player: cx.editor_style.local_player,
9570 text: text_style,
9571 scrollbar_width: cx.editor_style.scrollbar_width,
9572 syntax: cx.editor_style.syntax.clone(),
9573 status: cx.editor_style.status.clone(),
9574 inlay_hints_style: HighlightStyle {
9575 color: Some(cx.theme().status().hint),
9576 font_weight: Some(FontWeight::BOLD),
9577 ..HighlightStyle::default()
9578 },
9579 suggestions_style: HighlightStyle {
9580 color: Some(cx.theme().status().predictive),
9581 ..HighlightStyle::default()
9582 },
9583 },
9584 ))
9585 .into_any_element()
9586 }
9587 }),
9588 disposition: BlockDisposition::Below,
9589 }],
9590 Some(Autoscroll::fit()),
9591 cx,
9592 )[0];
9593 this.pending_rename = Some(RenameState {
9594 range,
9595 old_name,
9596 editor: rename_editor,
9597 block_id,
9598 });
9599 })?;
9600 }
9601
9602 Ok(())
9603 }))
9604 }
9605
9606 pub fn confirm_rename(
9607 &mut self,
9608 _: &ConfirmRename,
9609 cx: &mut ViewContext<Self>,
9610 ) -> Option<Task<Result<()>>> {
9611 let rename = self.take_rename(false, cx)?;
9612 let workspace = self.workspace()?;
9613 let (start_buffer, start) = self
9614 .buffer
9615 .read(cx)
9616 .text_anchor_for_position(rename.range.start, cx)?;
9617 let (end_buffer, end) = self
9618 .buffer
9619 .read(cx)
9620 .text_anchor_for_position(rename.range.end, cx)?;
9621 if start_buffer != end_buffer {
9622 return None;
9623 }
9624
9625 let buffer = start_buffer;
9626 let range = start..end;
9627 let old_name = rename.old_name;
9628 let new_name = rename.editor.read(cx).text(cx);
9629
9630 let rename = workspace
9631 .read(cx)
9632 .project()
9633 .clone()
9634 .update(cx, |project, cx| {
9635 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9636 });
9637 let workspace = workspace.downgrade();
9638
9639 Some(cx.spawn(|editor, mut cx| async move {
9640 let project_transaction = rename.await?;
9641 Self::open_project_transaction(
9642 &editor,
9643 workspace,
9644 project_transaction,
9645 format!("Rename: {} → {}", old_name, new_name),
9646 cx.clone(),
9647 )
9648 .await?;
9649
9650 editor.update(&mut cx, |editor, cx| {
9651 editor.refresh_document_highlights(cx);
9652 })?;
9653 Ok(())
9654 }))
9655 }
9656
9657 fn take_rename(
9658 &mut self,
9659 moving_cursor: bool,
9660 cx: &mut ViewContext<Self>,
9661 ) -> Option<RenameState> {
9662 let rename = self.pending_rename.take()?;
9663 if rename.editor.focus_handle(cx).is_focused(cx) {
9664 cx.focus(&self.focus_handle);
9665 }
9666
9667 self.remove_blocks(
9668 [rename.block_id].into_iter().collect(),
9669 Some(Autoscroll::fit()),
9670 cx,
9671 );
9672 self.clear_highlights::<Rename>(cx);
9673 self.show_local_selections = true;
9674
9675 if moving_cursor {
9676 let rename_editor = rename.editor.read(cx);
9677 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9678
9679 // Update the selection to match the position of the selection inside
9680 // the rename editor.
9681 let snapshot = self.buffer.read(cx).read(cx);
9682 let rename_range = rename.range.to_offset(&snapshot);
9683 let cursor_in_editor = snapshot
9684 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9685 .min(rename_range.end);
9686 drop(snapshot);
9687
9688 self.change_selections(None, cx, |s| {
9689 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9690 });
9691 } else {
9692 self.refresh_document_highlights(cx);
9693 }
9694
9695 Some(rename)
9696 }
9697
9698 pub fn pending_rename(&self) -> Option<&RenameState> {
9699 self.pending_rename.as_ref()
9700 }
9701
9702 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9703 let project = match &self.project {
9704 Some(project) => project.clone(),
9705 None => return None,
9706 };
9707
9708 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9709 }
9710
9711 fn perform_format(
9712 &mut self,
9713 project: Model<Project>,
9714 trigger: FormatTrigger,
9715 cx: &mut ViewContext<Self>,
9716 ) -> Task<Result<()>> {
9717 let buffer = self.buffer().clone();
9718 let mut buffers = buffer.read(cx).all_buffers();
9719 if trigger == FormatTrigger::Save {
9720 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9721 }
9722
9723 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9724 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9725
9726 cx.spawn(|_, mut cx| async move {
9727 let transaction = futures::select_biased! {
9728 () = timeout => {
9729 log::warn!("timed out waiting for formatting");
9730 None
9731 }
9732 transaction = format.log_err().fuse() => transaction,
9733 };
9734
9735 buffer
9736 .update(&mut cx, |buffer, cx| {
9737 if let Some(transaction) = transaction {
9738 if !buffer.is_singleton() {
9739 buffer.push_transaction(&transaction.0, cx);
9740 }
9741 }
9742
9743 cx.notify();
9744 })
9745 .ok();
9746
9747 Ok(())
9748 })
9749 }
9750
9751 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9752 if let Some(project) = self.project.clone() {
9753 self.buffer.update(cx, |multi_buffer, cx| {
9754 project.update(cx, |project, cx| {
9755 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9756 });
9757 })
9758 }
9759 }
9760
9761 fn cancel_language_server_work(
9762 &mut self,
9763 _: &CancelLanguageServerWork,
9764 cx: &mut ViewContext<Self>,
9765 ) {
9766 if let Some(project) = self.project.clone() {
9767 self.buffer.update(cx, |multi_buffer, cx| {
9768 project.update(cx, |project, cx| {
9769 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
9770 });
9771 })
9772 }
9773 }
9774
9775 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9776 cx.show_character_palette();
9777 }
9778
9779 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9780 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9781 let buffer = self.buffer.read(cx).snapshot(cx);
9782 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9783 let is_valid = buffer
9784 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9785 .any(|entry| {
9786 entry.diagnostic.is_primary
9787 && !entry.range.is_empty()
9788 && entry.range.start == primary_range_start
9789 && entry.diagnostic.message == active_diagnostics.primary_message
9790 });
9791
9792 if is_valid != active_diagnostics.is_valid {
9793 active_diagnostics.is_valid = is_valid;
9794 let mut new_styles = HashMap::default();
9795 for (block_id, diagnostic) in &active_diagnostics.blocks {
9796 new_styles.insert(
9797 *block_id,
9798 (
9799 None,
9800 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
9801 ),
9802 );
9803 }
9804 self.display_map.update(cx, |display_map, cx| {
9805 display_map.replace_blocks(new_styles, cx)
9806 });
9807 }
9808 }
9809 }
9810
9811 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9812 self.dismiss_diagnostics(cx);
9813 let snapshot = self.snapshot(cx);
9814 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9815 let buffer = self.buffer.read(cx).snapshot(cx);
9816
9817 let mut primary_range = None;
9818 let mut primary_message = None;
9819 let mut group_end = Point::zero();
9820 let diagnostic_group = buffer
9821 .diagnostic_group::<MultiBufferPoint>(group_id)
9822 .filter_map(|entry| {
9823 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9824 && (entry.range.start.row == entry.range.end.row
9825 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9826 {
9827 return None;
9828 }
9829 if entry.range.end > group_end {
9830 group_end = entry.range.end;
9831 }
9832 if entry.diagnostic.is_primary {
9833 primary_range = Some(entry.range.clone());
9834 primary_message = Some(entry.diagnostic.message.clone());
9835 }
9836 Some(entry)
9837 })
9838 .collect::<Vec<_>>();
9839 let primary_range = primary_range?;
9840 let primary_message = primary_message?;
9841 let primary_range =
9842 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9843
9844 let blocks = display_map
9845 .insert_blocks(
9846 diagnostic_group.iter().map(|entry| {
9847 let diagnostic = entry.diagnostic.clone();
9848 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9849 BlockProperties {
9850 style: BlockStyle::Fixed,
9851 position: buffer.anchor_after(entry.range.start),
9852 height: message_height,
9853 render: diagnostic_block_renderer(diagnostic, None, true, true),
9854 disposition: BlockDisposition::Below,
9855 }
9856 }),
9857 cx,
9858 )
9859 .into_iter()
9860 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9861 .collect();
9862
9863 Some(ActiveDiagnosticGroup {
9864 primary_range,
9865 primary_message,
9866 group_id,
9867 blocks,
9868 is_valid: true,
9869 })
9870 });
9871 self.active_diagnostics.is_some()
9872 }
9873
9874 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9875 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9876 self.display_map.update(cx, |display_map, cx| {
9877 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9878 });
9879 cx.notify();
9880 }
9881 }
9882
9883 pub fn set_selections_from_remote(
9884 &mut self,
9885 selections: Vec<Selection<Anchor>>,
9886 pending_selection: Option<Selection<Anchor>>,
9887 cx: &mut ViewContext<Self>,
9888 ) {
9889 let old_cursor_position = self.selections.newest_anchor().head();
9890 self.selections.change_with(cx, |s| {
9891 s.select_anchors(selections);
9892 if let Some(pending_selection) = pending_selection {
9893 s.set_pending(pending_selection, SelectMode::Character);
9894 } else {
9895 s.clear_pending();
9896 }
9897 });
9898 self.selections_did_change(false, &old_cursor_position, true, cx);
9899 }
9900
9901 fn push_to_selection_history(&mut self) {
9902 self.selection_history.push(SelectionHistoryEntry {
9903 selections: self.selections.disjoint_anchors(),
9904 select_next_state: self.select_next_state.clone(),
9905 select_prev_state: self.select_prev_state.clone(),
9906 add_selections_state: self.add_selections_state.clone(),
9907 });
9908 }
9909
9910 pub fn transact(
9911 &mut self,
9912 cx: &mut ViewContext<Self>,
9913 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9914 ) -> Option<TransactionId> {
9915 self.start_transaction_at(Instant::now(), cx);
9916 update(self, cx);
9917 self.end_transaction_at(Instant::now(), cx)
9918 }
9919
9920 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9921 self.end_selection(cx);
9922 if let Some(tx_id) = self
9923 .buffer
9924 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9925 {
9926 self.selection_history
9927 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9928 cx.emit(EditorEvent::TransactionBegun {
9929 transaction_id: tx_id,
9930 })
9931 }
9932 }
9933
9934 fn end_transaction_at(
9935 &mut self,
9936 now: Instant,
9937 cx: &mut ViewContext<Self>,
9938 ) -> Option<TransactionId> {
9939 if let Some(transaction_id) = self
9940 .buffer
9941 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9942 {
9943 if let Some((_, end_selections)) =
9944 self.selection_history.transaction_mut(transaction_id)
9945 {
9946 *end_selections = Some(self.selections.disjoint_anchors());
9947 } else {
9948 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9949 }
9950
9951 cx.emit(EditorEvent::Edited { transaction_id });
9952 Some(transaction_id)
9953 } else {
9954 None
9955 }
9956 }
9957
9958 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9959 let mut fold_ranges = Vec::new();
9960
9961 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9962
9963 let selections = self.selections.all_adjusted(cx);
9964 for selection in selections {
9965 let range = selection.range().sorted();
9966 let buffer_start_row = range.start.row;
9967
9968 for row in (0..=range.end.row).rev() {
9969 if let Some((foldable_range, fold_text)) =
9970 display_map.foldable_range(MultiBufferRow(row))
9971 {
9972 if foldable_range.end.row >= buffer_start_row {
9973 fold_ranges.push((foldable_range, fold_text));
9974 if row <= range.start.row {
9975 break;
9976 }
9977 }
9978 }
9979 }
9980 }
9981
9982 self.fold_ranges(fold_ranges, true, cx);
9983 }
9984
9985 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9986 let buffer_row = fold_at.buffer_row;
9987 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9988
9989 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9990 let autoscroll = self
9991 .selections
9992 .all::<Point>(cx)
9993 .iter()
9994 .any(|selection| fold_range.overlaps(&selection.range()));
9995
9996 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9997 }
9998 }
9999
10000 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10001 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10002 let buffer = &display_map.buffer_snapshot;
10003 let selections = self.selections.all::<Point>(cx);
10004 let ranges = selections
10005 .iter()
10006 .map(|s| {
10007 let range = s.display_range(&display_map).sorted();
10008 let mut start = range.start.to_point(&display_map);
10009 let mut end = range.end.to_point(&display_map);
10010 start.column = 0;
10011 end.column = buffer.line_len(MultiBufferRow(end.row));
10012 start..end
10013 })
10014 .collect::<Vec<_>>();
10015
10016 self.unfold_ranges(ranges, true, true, cx);
10017 }
10018
10019 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10020 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10021
10022 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10023 ..Point::new(
10024 unfold_at.buffer_row.0,
10025 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10026 );
10027
10028 let autoscroll = self
10029 .selections
10030 .all::<Point>(cx)
10031 .iter()
10032 .any(|selection| selection.range().overlaps(&intersection_range));
10033
10034 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10035 }
10036
10037 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10038 let selections = self.selections.all::<Point>(cx);
10039 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10040 let line_mode = self.selections.line_mode;
10041 let ranges = selections.into_iter().map(|s| {
10042 if line_mode {
10043 let start = Point::new(s.start.row, 0);
10044 let end = Point::new(
10045 s.end.row,
10046 display_map
10047 .buffer_snapshot
10048 .line_len(MultiBufferRow(s.end.row)),
10049 );
10050 (start..end, display_map.fold_placeholder.clone())
10051 } else {
10052 (s.start..s.end, display_map.fold_placeholder.clone())
10053 }
10054 });
10055 self.fold_ranges(ranges, true, cx);
10056 }
10057
10058 pub fn fold_ranges<T: ToOffset + Clone>(
10059 &mut self,
10060 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10061 auto_scroll: bool,
10062 cx: &mut ViewContext<Self>,
10063 ) {
10064 let mut fold_ranges = Vec::new();
10065 let mut buffers_affected = HashMap::default();
10066 let multi_buffer = self.buffer().read(cx);
10067 for (fold_range, fold_text) in ranges {
10068 if let Some((_, buffer, _)) =
10069 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10070 {
10071 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10072 };
10073 fold_ranges.push((fold_range, fold_text));
10074 }
10075
10076 let mut ranges = fold_ranges.into_iter().peekable();
10077 if ranges.peek().is_some() {
10078 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10079
10080 if auto_scroll {
10081 self.request_autoscroll(Autoscroll::fit(), cx);
10082 }
10083
10084 for buffer in buffers_affected.into_values() {
10085 self.sync_expanded_diff_hunks(buffer, cx);
10086 }
10087
10088 cx.notify();
10089
10090 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10091 // Clear diagnostics block when folding a range that contains it.
10092 let snapshot = self.snapshot(cx);
10093 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10094 drop(snapshot);
10095 self.active_diagnostics = Some(active_diagnostics);
10096 self.dismiss_diagnostics(cx);
10097 } else {
10098 self.active_diagnostics = Some(active_diagnostics);
10099 }
10100 }
10101
10102 self.scrollbar_marker_state.dirty = true;
10103 }
10104 }
10105
10106 pub fn unfold_ranges<T: ToOffset + Clone>(
10107 &mut self,
10108 ranges: impl IntoIterator<Item = Range<T>>,
10109 inclusive: bool,
10110 auto_scroll: bool,
10111 cx: &mut ViewContext<Self>,
10112 ) {
10113 let mut unfold_ranges = Vec::new();
10114 let mut buffers_affected = HashMap::default();
10115 let multi_buffer = self.buffer().read(cx);
10116 for range in ranges {
10117 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10118 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10119 };
10120 unfold_ranges.push(range);
10121 }
10122
10123 let mut ranges = unfold_ranges.into_iter().peekable();
10124 if ranges.peek().is_some() {
10125 self.display_map
10126 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10127 if auto_scroll {
10128 self.request_autoscroll(Autoscroll::fit(), cx);
10129 }
10130
10131 for buffer in buffers_affected.into_values() {
10132 self.sync_expanded_diff_hunks(buffer, cx);
10133 }
10134
10135 cx.notify();
10136 self.scrollbar_marker_state.dirty = true;
10137 self.active_indent_guides_state.dirty = true;
10138 }
10139 }
10140
10141 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10142 if hovered != self.gutter_hovered {
10143 self.gutter_hovered = hovered;
10144 cx.notify();
10145 }
10146 }
10147
10148 pub fn insert_blocks(
10149 &mut self,
10150 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10151 autoscroll: Option<Autoscroll>,
10152 cx: &mut ViewContext<Self>,
10153 ) -> Vec<BlockId> {
10154 let blocks = self
10155 .display_map
10156 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10157 if let Some(autoscroll) = autoscroll {
10158 self.request_autoscroll(autoscroll, cx);
10159 }
10160 blocks
10161 }
10162
10163 pub fn replace_blocks(
10164 &mut self,
10165 blocks: HashMap<BlockId, (Option<u8>, RenderBlock)>,
10166 autoscroll: Option<Autoscroll>,
10167 cx: &mut ViewContext<Self>,
10168 ) {
10169 self.display_map
10170 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
10171 if let Some(autoscroll) = autoscroll {
10172 self.request_autoscroll(autoscroll, cx);
10173 }
10174 }
10175
10176 pub fn remove_blocks(
10177 &mut self,
10178 block_ids: HashSet<BlockId>,
10179 autoscroll: Option<Autoscroll>,
10180 cx: &mut ViewContext<Self>,
10181 ) {
10182 self.display_map.update(cx, |display_map, cx| {
10183 display_map.remove_blocks(block_ids, cx)
10184 });
10185 if let Some(autoscroll) = autoscroll {
10186 self.request_autoscroll(autoscroll, cx);
10187 }
10188 }
10189
10190 pub fn row_for_block(
10191 &self,
10192 block_id: BlockId,
10193 cx: &mut ViewContext<Self>,
10194 ) -> Option<DisplayRow> {
10195 self.display_map
10196 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10197 }
10198
10199 pub fn insert_creases(
10200 &mut self,
10201 creases: impl IntoIterator<Item = Crease>,
10202 cx: &mut ViewContext<Self>,
10203 ) -> Vec<CreaseId> {
10204 self.display_map
10205 .update(cx, |map, cx| map.insert_creases(creases, cx))
10206 }
10207
10208 pub fn remove_creases(
10209 &mut self,
10210 ids: impl IntoIterator<Item = CreaseId>,
10211 cx: &mut ViewContext<Self>,
10212 ) {
10213 self.display_map
10214 .update(cx, |map, cx| map.remove_creases(ids, cx));
10215 }
10216
10217 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10218 self.display_map
10219 .update(cx, |map, cx| map.snapshot(cx))
10220 .longest_row()
10221 }
10222
10223 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10224 self.display_map
10225 .update(cx, |map, cx| map.snapshot(cx))
10226 .max_point()
10227 }
10228
10229 pub fn text(&self, cx: &AppContext) -> String {
10230 self.buffer.read(cx).read(cx).text()
10231 }
10232
10233 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10234 let text = self.text(cx);
10235 let text = text.trim();
10236
10237 if text.is_empty() {
10238 return None;
10239 }
10240
10241 Some(text.to_string())
10242 }
10243
10244 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10245 self.transact(cx, |this, cx| {
10246 this.buffer
10247 .read(cx)
10248 .as_singleton()
10249 .expect("you can only call set_text on editors for singleton buffers")
10250 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10251 });
10252 }
10253
10254 pub fn display_text(&self, cx: &mut AppContext) -> String {
10255 self.display_map
10256 .update(cx, |map, cx| map.snapshot(cx))
10257 .text()
10258 }
10259
10260 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10261 let mut wrap_guides = smallvec::smallvec![];
10262
10263 if self.show_wrap_guides == Some(false) {
10264 return wrap_guides;
10265 }
10266
10267 let settings = self.buffer.read(cx).settings_at(0, cx);
10268 if settings.show_wrap_guides {
10269 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10270 wrap_guides.push((soft_wrap as usize, true));
10271 }
10272 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10273 }
10274
10275 wrap_guides
10276 }
10277
10278 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10279 let settings = self.buffer.read(cx).settings_at(0, cx);
10280 let mode = self
10281 .soft_wrap_mode_override
10282 .unwrap_or_else(|| settings.soft_wrap);
10283 match mode {
10284 language_settings::SoftWrap::None => SoftWrap::None,
10285 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10286 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10287 language_settings::SoftWrap::PreferredLineLength => {
10288 SoftWrap::Column(settings.preferred_line_length)
10289 }
10290 }
10291 }
10292
10293 pub fn set_soft_wrap_mode(
10294 &mut self,
10295 mode: language_settings::SoftWrap,
10296 cx: &mut ViewContext<Self>,
10297 ) {
10298 self.soft_wrap_mode_override = Some(mode);
10299 cx.notify();
10300 }
10301
10302 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10303 let rem_size = cx.rem_size();
10304 self.display_map.update(cx, |map, cx| {
10305 map.set_font(
10306 style.text.font(),
10307 style.text.font_size.to_pixels(rem_size),
10308 cx,
10309 )
10310 });
10311 self.style = Some(style);
10312 }
10313
10314 pub fn style(&self) -> Option<&EditorStyle> {
10315 self.style.as_ref()
10316 }
10317
10318 // Called by the element. This method is not designed to be called outside of the editor
10319 // element's layout code because it does not notify when rewrapping is computed synchronously.
10320 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10321 self.display_map
10322 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10323 }
10324
10325 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10326 if self.soft_wrap_mode_override.is_some() {
10327 self.soft_wrap_mode_override.take();
10328 } else {
10329 let soft_wrap = match self.soft_wrap_mode(cx) {
10330 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10331 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
10332 language_settings::SoftWrap::PreferLine
10333 }
10334 };
10335 self.soft_wrap_mode_override = Some(soft_wrap);
10336 }
10337 cx.notify();
10338 }
10339
10340 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10341 let Some(workspace) = self.workspace() else {
10342 return;
10343 };
10344 let fs = workspace.read(cx).app_state().fs.clone();
10345 let current_show = TabBarSettings::get_global(cx).show;
10346 update_settings_file::<TabBarSettings>(fs, cx, move |setting| {
10347 setting.show = Some(!current_show);
10348 });
10349 }
10350
10351 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10352 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10353 self.buffer
10354 .read(cx)
10355 .settings_at(0, cx)
10356 .indent_guides
10357 .enabled
10358 });
10359 self.show_indent_guides = Some(!currently_enabled);
10360 cx.notify();
10361 }
10362
10363 fn should_show_indent_guides(&self) -> Option<bool> {
10364 self.show_indent_guides
10365 }
10366
10367 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10368 let mut editor_settings = EditorSettings::get_global(cx).clone();
10369 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10370 EditorSettings::override_global(editor_settings, cx);
10371 }
10372
10373 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10374 self.show_gutter = show_gutter;
10375 cx.notify();
10376 }
10377
10378 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10379 self.show_line_numbers = Some(show_line_numbers);
10380 cx.notify();
10381 }
10382
10383 pub fn set_show_git_diff_gutter(
10384 &mut self,
10385 show_git_diff_gutter: bool,
10386 cx: &mut ViewContext<Self>,
10387 ) {
10388 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10389 cx.notify();
10390 }
10391
10392 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10393 self.show_code_actions = Some(show_code_actions);
10394 cx.notify();
10395 }
10396
10397 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10398 self.show_runnables = Some(show_runnables);
10399 cx.notify();
10400 }
10401
10402 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10403 self.show_wrap_guides = Some(show_wrap_guides);
10404 cx.notify();
10405 }
10406
10407 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10408 self.show_indent_guides = Some(show_indent_guides);
10409 cx.notify();
10410 }
10411
10412 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10413 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10414 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10415 if let Some(dir) = file.abs_path(cx).parent() {
10416 return Some(dir.to_owned());
10417 }
10418 }
10419
10420 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10421 return Some(project_path.path.to_path_buf());
10422 }
10423 }
10424
10425 None
10426 }
10427
10428 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
10429 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10430 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10431 cx.reveal_path(&file.abs_path(cx));
10432 }
10433 }
10434 }
10435
10436 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10437 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10438 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10439 if let Some(path) = file.abs_path(cx).to_str() {
10440 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10441 }
10442 }
10443 }
10444 }
10445
10446 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10447 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10448 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10449 if let Some(path) = file.path().to_str() {
10450 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10451 }
10452 }
10453 }
10454 }
10455
10456 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10457 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10458
10459 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10460 self.start_git_blame(true, cx);
10461 }
10462
10463 cx.notify();
10464 }
10465
10466 pub fn toggle_git_blame_inline(
10467 &mut self,
10468 _: &ToggleGitBlameInline,
10469 cx: &mut ViewContext<Self>,
10470 ) {
10471 self.toggle_git_blame_inline_internal(true, cx);
10472 cx.notify();
10473 }
10474
10475 pub fn git_blame_inline_enabled(&self) -> bool {
10476 self.git_blame_inline_enabled
10477 }
10478
10479 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10480 self.show_selection_menu = self
10481 .show_selection_menu
10482 .map(|show_selections_menu| !show_selections_menu)
10483 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10484
10485 cx.notify();
10486 }
10487
10488 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10489 self.show_selection_menu
10490 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10491 }
10492
10493 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10494 if let Some(project) = self.project.as_ref() {
10495 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10496 return;
10497 };
10498
10499 if buffer.read(cx).file().is_none() {
10500 return;
10501 }
10502
10503 let focused = self.focus_handle(cx).contains_focused(cx);
10504
10505 let project = project.clone();
10506 let blame =
10507 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10508 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10509 self.blame = Some(blame);
10510 }
10511 }
10512
10513 fn toggle_git_blame_inline_internal(
10514 &mut self,
10515 user_triggered: bool,
10516 cx: &mut ViewContext<Self>,
10517 ) {
10518 if self.git_blame_inline_enabled {
10519 self.git_blame_inline_enabled = false;
10520 self.show_git_blame_inline = false;
10521 self.show_git_blame_inline_delay_task.take();
10522 } else {
10523 self.git_blame_inline_enabled = true;
10524 self.start_git_blame_inline(user_triggered, cx);
10525 }
10526
10527 cx.notify();
10528 }
10529
10530 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10531 self.start_git_blame(user_triggered, cx);
10532
10533 if ProjectSettings::get_global(cx)
10534 .git
10535 .inline_blame_delay()
10536 .is_some()
10537 {
10538 self.start_inline_blame_timer(cx);
10539 } else {
10540 self.show_git_blame_inline = true
10541 }
10542 }
10543
10544 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10545 self.blame.as_ref()
10546 }
10547
10548 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10549 self.show_git_blame_gutter && self.has_blame_entries(cx)
10550 }
10551
10552 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10553 self.show_git_blame_inline
10554 && self.focus_handle.is_focused(cx)
10555 && !self.newest_selection_head_on_empty_line(cx)
10556 && self.has_blame_entries(cx)
10557 }
10558
10559 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10560 self.blame()
10561 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10562 }
10563
10564 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10565 let cursor_anchor = self.selections.newest_anchor().head();
10566
10567 let snapshot = self.buffer.read(cx).snapshot(cx);
10568 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10569
10570 snapshot.line_len(buffer_row) == 0
10571 }
10572
10573 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10574 let (path, selection, repo) = maybe!({
10575 let project_handle = self.project.as_ref()?.clone();
10576 let project = project_handle.read(cx);
10577
10578 let selection = self.selections.newest::<Point>(cx);
10579 let selection_range = selection.range();
10580
10581 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10582 (buffer, selection_range.start.row..selection_range.end.row)
10583 } else {
10584 let buffer_ranges = self
10585 .buffer()
10586 .read(cx)
10587 .range_to_buffer_ranges(selection_range, cx);
10588
10589 let (buffer, range, _) = if selection.reversed {
10590 buffer_ranges.first()
10591 } else {
10592 buffer_ranges.last()
10593 }?;
10594
10595 let snapshot = buffer.read(cx).snapshot();
10596 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10597 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10598 (buffer.clone(), selection)
10599 };
10600
10601 let path = buffer
10602 .read(cx)
10603 .file()?
10604 .as_local()?
10605 .path()
10606 .to_str()?
10607 .to_string();
10608 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10609 Some((path, selection, repo))
10610 })
10611 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10612
10613 const REMOTE_NAME: &str = "origin";
10614 let origin_url = repo
10615 .remote_url(REMOTE_NAME)
10616 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10617 let sha = repo
10618 .head_sha()
10619 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10620
10621 let (provider, remote) =
10622 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10623 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10624
10625 Ok(provider.build_permalink(
10626 remote,
10627 BuildPermalinkParams {
10628 sha: &sha,
10629 path: &path,
10630 selection: Some(selection),
10631 },
10632 ))
10633 }
10634
10635 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10636 let permalink = self.get_permalink_to_line(cx);
10637
10638 match permalink {
10639 Ok(permalink) => {
10640 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10641 }
10642 Err(err) => {
10643 let message = format!("Failed to copy permalink: {err}");
10644
10645 Err::<(), anyhow::Error>(err).log_err();
10646
10647 if let Some(workspace) = self.workspace() {
10648 workspace.update(cx, |workspace, cx| {
10649 struct CopyPermalinkToLine;
10650
10651 workspace.show_toast(
10652 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10653 cx,
10654 )
10655 })
10656 }
10657 }
10658 }
10659 }
10660
10661 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10662 let permalink = self.get_permalink_to_line(cx);
10663
10664 match permalink {
10665 Ok(permalink) => {
10666 cx.open_url(permalink.as_ref());
10667 }
10668 Err(err) => {
10669 let message = format!("Failed to open permalink: {err}");
10670
10671 Err::<(), anyhow::Error>(err).log_err();
10672
10673 if let Some(workspace) = self.workspace() {
10674 workspace.update(cx, |workspace, cx| {
10675 struct OpenPermalinkToLine;
10676
10677 workspace.show_toast(
10678 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10679 cx,
10680 )
10681 })
10682 }
10683 }
10684 }
10685 }
10686
10687 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10688 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10689 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10690 pub fn highlight_rows<T: 'static>(
10691 &mut self,
10692 rows: RangeInclusive<Anchor>,
10693 color: Option<Hsla>,
10694 should_autoscroll: bool,
10695 cx: &mut ViewContext<Self>,
10696 ) {
10697 let snapshot = self.buffer().read(cx).snapshot(cx);
10698 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10699 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10700 highlight
10701 .range
10702 .start()
10703 .cmp(&rows.start(), &snapshot)
10704 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10705 });
10706 match (color, existing_highlight_index) {
10707 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10708 ix,
10709 RowHighlight {
10710 index: post_inc(&mut self.highlight_order),
10711 range: rows,
10712 should_autoscroll,
10713 color,
10714 },
10715 ),
10716 (None, Ok(i)) => {
10717 row_highlights.remove(i);
10718 }
10719 }
10720 }
10721
10722 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10723 pub fn clear_row_highlights<T: 'static>(&mut self) {
10724 self.highlighted_rows.remove(&TypeId::of::<T>());
10725 }
10726
10727 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10728 pub fn highlighted_rows<T: 'static>(
10729 &self,
10730 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10731 Some(
10732 self.highlighted_rows
10733 .get(&TypeId::of::<T>())?
10734 .iter()
10735 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10736 )
10737 }
10738
10739 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10740 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10741 /// Allows to ignore certain kinds of highlights.
10742 pub fn highlighted_display_rows(
10743 &mut self,
10744 cx: &mut WindowContext,
10745 ) -> BTreeMap<DisplayRow, Hsla> {
10746 let snapshot = self.snapshot(cx);
10747 let mut used_highlight_orders = HashMap::default();
10748 self.highlighted_rows
10749 .iter()
10750 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10751 .fold(
10752 BTreeMap::<DisplayRow, Hsla>::new(),
10753 |mut unique_rows, highlight| {
10754 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10755 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10756 for row in start_row.0..=end_row.0 {
10757 let used_index =
10758 used_highlight_orders.entry(row).or_insert(highlight.index);
10759 if highlight.index >= *used_index {
10760 *used_index = highlight.index;
10761 match highlight.color {
10762 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10763 None => unique_rows.remove(&DisplayRow(row)),
10764 };
10765 }
10766 }
10767 unique_rows
10768 },
10769 )
10770 }
10771
10772 pub fn highlighted_display_row_for_autoscroll(
10773 &self,
10774 snapshot: &DisplaySnapshot,
10775 ) -> Option<DisplayRow> {
10776 self.highlighted_rows
10777 .values()
10778 .flat_map(|highlighted_rows| highlighted_rows.iter())
10779 .filter_map(|highlight| {
10780 if highlight.color.is_none() || !highlight.should_autoscroll {
10781 return None;
10782 }
10783 Some(highlight.range.start().to_display_point(&snapshot).row())
10784 })
10785 .min()
10786 }
10787
10788 pub fn set_search_within_ranges(
10789 &mut self,
10790 ranges: &[Range<Anchor>],
10791 cx: &mut ViewContext<Self>,
10792 ) {
10793 self.highlight_background::<SearchWithinRange>(
10794 ranges,
10795 |colors| colors.editor_document_highlight_read_background,
10796 cx,
10797 )
10798 }
10799
10800 pub fn set_breadcrumb_header(&mut self, new_header: String) {
10801 self.breadcrumb_header = Some(new_header);
10802 }
10803
10804 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10805 self.clear_background_highlights::<SearchWithinRange>(cx);
10806 }
10807
10808 pub fn highlight_background<T: 'static>(
10809 &mut self,
10810 ranges: &[Range<Anchor>],
10811 color_fetcher: fn(&ThemeColors) -> Hsla,
10812 cx: &mut ViewContext<Self>,
10813 ) {
10814 let snapshot = self.snapshot(cx);
10815 // this is to try and catch a panic sooner
10816 for range in ranges {
10817 snapshot
10818 .buffer_snapshot
10819 .summary_for_anchor::<usize>(&range.start);
10820 snapshot
10821 .buffer_snapshot
10822 .summary_for_anchor::<usize>(&range.end);
10823 }
10824
10825 self.background_highlights
10826 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10827 self.scrollbar_marker_state.dirty = true;
10828 cx.notify();
10829 }
10830
10831 pub fn clear_background_highlights<T: 'static>(
10832 &mut self,
10833 cx: &mut ViewContext<Self>,
10834 ) -> Option<BackgroundHighlight> {
10835 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10836 if !text_highlights.1.is_empty() {
10837 self.scrollbar_marker_state.dirty = true;
10838 cx.notify();
10839 }
10840 Some(text_highlights)
10841 }
10842
10843 pub fn highlight_gutter<T: 'static>(
10844 &mut self,
10845 ranges: &[Range<Anchor>],
10846 color_fetcher: fn(&AppContext) -> Hsla,
10847 cx: &mut ViewContext<Self>,
10848 ) {
10849 self.gutter_highlights
10850 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10851 cx.notify();
10852 }
10853
10854 pub fn clear_gutter_highlights<T: 'static>(
10855 &mut self,
10856 cx: &mut ViewContext<Self>,
10857 ) -> Option<GutterHighlight> {
10858 cx.notify();
10859 self.gutter_highlights.remove(&TypeId::of::<T>())
10860 }
10861
10862 #[cfg(feature = "test-support")]
10863 pub fn all_text_background_highlights(
10864 &mut self,
10865 cx: &mut ViewContext<Self>,
10866 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10867 let snapshot = self.snapshot(cx);
10868 let buffer = &snapshot.buffer_snapshot;
10869 let start = buffer.anchor_before(0);
10870 let end = buffer.anchor_after(buffer.len());
10871 let theme = cx.theme().colors();
10872 self.background_highlights_in_range(start..end, &snapshot, theme)
10873 }
10874
10875 #[cfg(feature = "test-support")]
10876 pub fn search_background_highlights(
10877 &mut self,
10878 cx: &mut ViewContext<Self>,
10879 ) -> Vec<Range<Point>> {
10880 let snapshot = self.buffer().read(cx).snapshot(cx);
10881
10882 let highlights = self
10883 .background_highlights
10884 .get(&TypeId::of::<items::BufferSearchHighlights>());
10885
10886 if let Some((_color, ranges)) = highlights {
10887 ranges
10888 .iter()
10889 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10890 .collect_vec()
10891 } else {
10892 vec![]
10893 }
10894 }
10895
10896 fn document_highlights_for_position<'a>(
10897 &'a self,
10898 position: Anchor,
10899 buffer: &'a MultiBufferSnapshot,
10900 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10901 let read_highlights = self
10902 .background_highlights
10903 .get(&TypeId::of::<DocumentHighlightRead>())
10904 .map(|h| &h.1);
10905 let write_highlights = self
10906 .background_highlights
10907 .get(&TypeId::of::<DocumentHighlightWrite>())
10908 .map(|h| &h.1);
10909 let left_position = position.bias_left(buffer);
10910 let right_position = position.bias_right(buffer);
10911 read_highlights
10912 .into_iter()
10913 .chain(write_highlights)
10914 .flat_map(move |ranges| {
10915 let start_ix = match ranges.binary_search_by(|probe| {
10916 let cmp = probe.end.cmp(&left_position, buffer);
10917 if cmp.is_ge() {
10918 Ordering::Greater
10919 } else {
10920 Ordering::Less
10921 }
10922 }) {
10923 Ok(i) | Err(i) => i,
10924 };
10925
10926 ranges[start_ix..]
10927 .iter()
10928 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10929 })
10930 }
10931
10932 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10933 self.background_highlights
10934 .get(&TypeId::of::<T>())
10935 .map_or(false, |(_, highlights)| !highlights.is_empty())
10936 }
10937
10938 pub fn background_highlights_in_range(
10939 &self,
10940 search_range: Range<Anchor>,
10941 display_snapshot: &DisplaySnapshot,
10942 theme: &ThemeColors,
10943 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10944 let mut results = Vec::new();
10945 for (color_fetcher, ranges) in self.background_highlights.values() {
10946 let color = color_fetcher(theme);
10947 let start_ix = match ranges.binary_search_by(|probe| {
10948 let cmp = probe
10949 .end
10950 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10951 if cmp.is_gt() {
10952 Ordering::Greater
10953 } else {
10954 Ordering::Less
10955 }
10956 }) {
10957 Ok(i) | Err(i) => i,
10958 };
10959 for range in &ranges[start_ix..] {
10960 if range
10961 .start
10962 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10963 .is_ge()
10964 {
10965 break;
10966 }
10967
10968 let start = range.start.to_display_point(&display_snapshot);
10969 let end = range.end.to_display_point(&display_snapshot);
10970 results.push((start..end, color))
10971 }
10972 }
10973 results
10974 }
10975
10976 pub fn background_highlight_row_ranges<T: 'static>(
10977 &self,
10978 search_range: Range<Anchor>,
10979 display_snapshot: &DisplaySnapshot,
10980 count: usize,
10981 ) -> Vec<RangeInclusive<DisplayPoint>> {
10982 let mut results = Vec::new();
10983 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10984 return vec![];
10985 };
10986
10987 let start_ix = match ranges.binary_search_by(|probe| {
10988 let cmp = probe
10989 .end
10990 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10991 if cmp.is_gt() {
10992 Ordering::Greater
10993 } else {
10994 Ordering::Less
10995 }
10996 }) {
10997 Ok(i) | Err(i) => i,
10998 };
10999 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11000 if let (Some(start_display), Some(end_display)) = (start, end) {
11001 results.push(
11002 start_display.to_display_point(display_snapshot)
11003 ..=end_display.to_display_point(display_snapshot),
11004 );
11005 }
11006 };
11007 let mut start_row: Option<Point> = None;
11008 let mut end_row: Option<Point> = None;
11009 if ranges.len() > count {
11010 return Vec::new();
11011 }
11012 for range in &ranges[start_ix..] {
11013 if range
11014 .start
11015 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11016 .is_ge()
11017 {
11018 break;
11019 }
11020 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11021 if let Some(current_row) = &end_row {
11022 if end.row == current_row.row {
11023 continue;
11024 }
11025 }
11026 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11027 if start_row.is_none() {
11028 assert_eq!(end_row, None);
11029 start_row = Some(start);
11030 end_row = Some(end);
11031 continue;
11032 }
11033 if let Some(current_end) = end_row.as_mut() {
11034 if start.row > current_end.row + 1 {
11035 push_region(start_row, end_row);
11036 start_row = Some(start);
11037 end_row = Some(end);
11038 } else {
11039 // Merge two hunks.
11040 *current_end = end;
11041 }
11042 } else {
11043 unreachable!();
11044 }
11045 }
11046 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11047 push_region(start_row, end_row);
11048 results
11049 }
11050
11051 pub fn gutter_highlights_in_range(
11052 &self,
11053 search_range: Range<Anchor>,
11054 display_snapshot: &DisplaySnapshot,
11055 cx: &AppContext,
11056 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11057 let mut results = Vec::new();
11058 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11059 let color = color_fetcher(cx);
11060 let start_ix = match ranges.binary_search_by(|probe| {
11061 let cmp = probe
11062 .end
11063 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11064 if cmp.is_gt() {
11065 Ordering::Greater
11066 } else {
11067 Ordering::Less
11068 }
11069 }) {
11070 Ok(i) | Err(i) => i,
11071 };
11072 for range in &ranges[start_ix..] {
11073 if range
11074 .start
11075 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11076 .is_ge()
11077 {
11078 break;
11079 }
11080
11081 let start = range.start.to_display_point(&display_snapshot);
11082 let end = range.end.to_display_point(&display_snapshot);
11083 results.push((start..end, color))
11084 }
11085 }
11086 results
11087 }
11088
11089 /// Get the text ranges corresponding to the redaction query
11090 pub fn redacted_ranges(
11091 &self,
11092 search_range: Range<Anchor>,
11093 display_snapshot: &DisplaySnapshot,
11094 cx: &WindowContext,
11095 ) -> Vec<Range<DisplayPoint>> {
11096 display_snapshot
11097 .buffer_snapshot
11098 .redacted_ranges(search_range, |file| {
11099 if let Some(file) = file {
11100 file.is_private()
11101 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
11102 } else {
11103 false
11104 }
11105 })
11106 .map(|range| {
11107 range.start.to_display_point(display_snapshot)
11108 ..range.end.to_display_point(display_snapshot)
11109 })
11110 .collect()
11111 }
11112
11113 pub fn highlight_text<T: 'static>(
11114 &mut self,
11115 ranges: Vec<Range<Anchor>>,
11116 style: HighlightStyle,
11117 cx: &mut ViewContext<Self>,
11118 ) {
11119 self.display_map.update(cx, |map, _| {
11120 map.highlight_text(TypeId::of::<T>(), ranges, style)
11121 });
11122 cx.notify();
11123 }
11124
11125 pub(crate) fn highlight_inlays<T: 'static>(
11126 &mut self,
11127 highlights: Vec<InlayHighlight>,
11128 style: HighlightStyle,
11129 cx: &mut ViewContext<Self>,
11130 ) {
11131 self.display_map.update(cx, |map, _| {
11132 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11133 });
11134 cx.notify();
11135 }
11136
11137 pub fn text_highlights<'a, T: 'static>(
11138 &'a self,
11139 cx: &'a AppContext,
11140 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11141 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11142 }
11143
11144 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11145 let cleared = self
11146 .display_map
11147 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11148 if cleared {
11149 cx.notify();
11150 }
11151 }
11152
11153 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11154 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11155 && self.focus_handle.is_focused(cx)
11156 }
11157
11158 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11159 self.show_cursor_when_unfocused = is_enabled;
11160 cx.notify();
11161 }
11162
11163 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11164 cx.notify();
11165 }
11166
11167 fn on_buffer_event(
11168 &mut self,
11169 multibuffer: Model<MultiBuffer>,
11170 event: &multi_buffer::Event,
11171 cx: &mut ViewContext<Self>,
11172 ) {
11173 match event {
11174 multi_buffer::Event::Edited {
11175 singleton_buffer_edited,
11176 } => {
11177 self.scrollbar_marker_state.dirty = true;
11178 self.active_indent_guides_state.dirty = true;
11179 self.refresh_active_diagnostics(cx);
11180 self.refresh_code_actions(cx);
11181 if self.has_active_inline_completion(cx) {
11182 self.update_visible_inline_completion(cx);
11183 }
11184 cx.emit(EditorEvent::BufferEdited);
11185 cx.emit(SearchEvent::MatchesInvalidated);
11186 if *singleton_buffer_edited {
11187 if let Some(project) = &self.project {
11188 let project = project.read(cx);
11189 #[allow(clippy::mutable_key_type)]
11190 let languages_affected = multibuffer
11191 .read(cx)
11192 .all_buffers()
11193 .into_iter()
11194 .filter_map(|buffer| {
11195 let buffer = buffer.read(cx);
11196 let language = buffer.language()?;
11197 if project.is_local()
11198 && project.language_servers_for_buffer(buffer, cx).count() == 0
11199 {
11200 None
11201 } else {
11202 Some(language)
11203 }
11204 })
11205 .cloned()
11206 .collect::<HashSet<_>>();
11207 if !languages_affected.is_empty() {
11208 self.refresh_inlay_hints(
11209 InlayHintRefreshReason::BufferEdited(languages_affected),
11210 cx,
11211 );
11212 }
11213 }
11214 }
11215
11216 let Some(project) = &self.project else { return };
11217 let telemetry = project.read(cx).client().telemetry().clone();
11218 refresh_linked_ranges(self, cx);
11219 telemetry.log_edit_event("editor");
11220 }
11221 multi_buffer::Event::ExcerptsAdded {
11222 buffer,
11223 predecessor,
11224 excerpts,
11225 } => {
11226 self.tasks_update_task = Some(self.refresh_runnables(cx));
11227 cx.emit(EditorEvent::ExcerptsAdded {
11228 buffer: buffer.clone(),
11229 predecessor: *predecessor,
11230 excerpts: excerpts.clone(),
11231 });
11232 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11233 }
11234 multi_buffer::Event::ExcerptsRemoved { ids } => {
11235 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11236 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11237 }
11238 multi_buffer::Event::ExcerptsEdited { ids } => {
11239 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11240 }
11241 multi_buffer::Event::ExcerptsExpanded { ids } => {
11242 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11243 }
11244 multi_buffer::Event::Reparsed(buffer_id) => {
11245 self.tasks_update_task = Some(self.refresh_runnables(cx));
11246
11247 cx.emit(EditorEvent::Reparsed(*buffer_id));
11248 }
11249 multi_buffer::Event::LanguageChanged(buffer_id) => {
11250 linked_editing_ranges::refresh_linked_ranges(self, cx);
11251 cx.emit(EditorEvent::Reparsed(*buffer_id));
11252 cx.notify();
11253 }
11254 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11255 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11256 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11257 cx.emit(EditorEvent::TitleChanged)
11258 }
11259 multi_buffer::Event::DiffBaseChanged => {
11260 self.scrollbar_marker_state.dirty = true;
11261 cx.emit(EditorEvent::DiffBaseChanged);
11262 cx.notify();
11263 }
11264 multi_buffer::Event::DiffUpdated { buffer } => {
11265 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11266 cx.notify();
11267 }
11268 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11269 multi_buffer::Event::DiagnosticsUpdated => {
11270 self.refresh_active_diagnostics(cx);
11271 self.scrollbar_marker_state.dirty = true;
11272 cx.notify();
11273 }
11274 _ => {}
11275 };
11276 }
11277
11278 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11279 cx.notify();
11280 }
11281
11282 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11283 self.tasks_update_task = Some(self.refresh_runnables(cx));
11284 self.refresh_inline_completion(true, cx);
11285 self.refresh_inlay_hints(
11286 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11287 self.selections.newest_anchor().head(),
11288 &self.buffer.read(cx).snapshot(cx),
11289 cx,
11290 )),
11291 cx,
11292 );
11293 let editor_settings = EditorSettings::get_global(cx);
11294 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11295 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11296
11297 let project_settings = ProjectSettings::get_global(cx);
11298 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
11299
11300 if self.mode == EditorMode::Full {
11301 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
11302 if self.git_blame_inline_enabled != inline_blame_enabled {
11303 self.toggle_git_blame_inline_internal(false, cx);
11304 }
11305 }
11306
11307 cx.notify();
11308 }
11309
11310 pub fn set_searchable(&mut self, searchable: bool) {
11311 self.searchable = searchable;
11312 }
11313
11314 pub fn searchable(&self) -> bool {
11315 self.searchable
11316 }
11317
11318 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11319 self.open_excerpts_common(true, cx)
11320 }
11321
11322 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11323 self.open_excerpts_common(false, cx)
11324 }
11325
11326 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11327 let buffer = self.buffer.read(cx);
11328 if buffer.is_singleton() {
11329 cx.propagate();
11330 return;
11331 }
11332
11333 let Some(workspace) = self.workspace() else {
11334 cx.propagate();
11335 return;
11336 };
11337
11338 let mut new_selections_by_buffer = HashMap::default();
11339 for selection in self.selections.all::<usize>(cx) {
11340 for (buffer, mut range, _) in
11341 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11342 {
11343 if selection.reversed {
11344 mem::swap(&mut range.start, &mut range.end);
11345 }
11346 new_selections_by_buffer
11347 .entry(buffer)
11348 .or_insert(Vec::new())
11349 .push(range)
11350 }
11351 }
11352
11353 // We defer the pane interaction because we ourselves are a workspace item
11354 // and activating a new item causes the pane to call a method on us reentrantly,
11355 // which panics if we're on the stack.
11356 cx.window_context().defer(move |cx| {
11357 workspace.update(cx, |workspace, cx| {
11358 let pane = if split {
11359 workspace.adjacent_pane(cx)
11360 } else {
11361 workspace.active_pane().clone()
11362 };
11363
11364 for (buffer, ranges) in new_selections_by_buffer {
11365 let editor =
11366 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
11367 editor.update(cx, |editor, cx| {
11368 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11369 s.select_ranges(ranges);
11370 });
11371 });
11372 }
11373 })
11374 });
11375 }
11376
11377 fn jump(
11378 &mut self,
11379 path: ProjectPath,
11380 position: Point,
11381 anchor: language::Anchor,
11382 offset_from_top: u32,
11383 cx: &mut ViewContext<Self>,
11384 ) {
11385 let workspace = self.workspace();
11386 cx.spawn(|_, mut cx| async move {
11387 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11388 let editor = workspace.update(&mut cx, |workspace, cx| {
11389 // Reset the preview item id before opening the new item
11390 workspace.active_pane().update(cx, |pane, cx| {
11391 pane.set_preview_item_id(None, cx);
11392 });
11393 workspace.open_path_preview(path, None, true, true, cx)
11394 })?;
11395 let editor = editor
11396 .await?
11397 .downcast::<Editor>()
11398 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11399 .downgrade();
11400 editor.update(&mut cx, |editor, cx| {
11401 let buffer = editor
11402 .buffer()
11403 .read(cx)
11404 .as_singleton()
11405 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11406 let buffer = buffer.read(cx);
11407 let cursor = if buffer.can_resolve(&anchor) {
11408 language::ToPoint::to_point(&anchor, buffer)
11409 } else {
11410 buffer.clip_point(position, Bias::Left)
11411 };
11412
11413 let nav_history = editor.nav_history.take();
11414 editor.change_selections(
11415 Some(Autoscroll::top_relative(offset_from_top as usize)),
11416 cx,
11417 |s| {
11418 s.select_ranges([cursor..cursor]);
11419 },
11420 );
11421 editor.nav_history = nav_history;
11422
11423 anyhow::Ok(())
11424 })??;
11425
11426 anyhow::Ok(())
11427 })
11428 .detach_and_log_err(cx);
11429 }
11430
11431 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11432 let snapshot = self.buffer.read(cx).read(cx);
11433 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11434 Some(
11435 ranges
11436 .iter()
11437 .map(move |range| {
11438 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11439 })
11440 .collect(),
11441 )
11442 }
11443
11444 fn selection_replacement_ranges(
11445 &self,
11446 range: Range<OffsetUtf16>,
11447 cx: &AppContext,
11448 ) -> Vec<Range<OffsetUtf16>> {
11449 let selections = self.selections.all::<OffsetUtf16>(cx);
11450 let newest_selection = selections
11451 .iter()
11452 .max_by_key(|selection| selection.id)
11453 .unwrap();
11454 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11455 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11456 let snapshot = self.buffer.read(cx).read(cx);
11457 selections
11458 .into_iter()
11459 .map(|mut selection| {
11460 selection.start.0 =
11461 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11462 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11463 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11464 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11465 })
11466 .collect()
11467 }
11468
11469 fn report_editor_event(
11470 &self,
11471 operation: &'static str,
11472 file_extension: Option<String>,
11473 cx: &AppContext,
11474 ) {
11475 if cfg!(any(test, feature = "test-support")) {
11476 return;
11477 }
11478
11479 let Some(project) = &self.project else { return };
11480
11481 // If None, we are in a file without an extension
11482 let file = self
11483 .buffer
11484 .read(cx)
11485 .as_singleton()
11486 .and_then(|b| b.read(cx).file());
11487 let file_extension = file_extension.or(file
11488 .as_ref()
11489 .and_then(|file| Path::new(file.file_name(cx)).extension())
11490 .and_then(|e| e.to_str())
11491 .map(|a| a.to_string()));
11492
11493 let vim_mode = cx
11494 .global::<SettingsStore>()
11495 .raw_user_settings()
11496 .get("vim_mode")
11497 == Some(&serde_json::Value::Bool(true));
11498
11499 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11500 == language::language_settings::InlineCompletionProvider::Copilot;
11501 let copilot_enabled_for_language = self
11502 .buffer
11503 .read(cx)
11504 .settings_at(0, cx)
11505 .show_inline_completions;
11506
11507 let telemetry = project.read(cx).client().telemetry().clone();
11508 telemetry.report_editor_event(
11509 file_extension,
11510 vim_mode,
11511 operation,
11512 copilot_enabled,
11513 copilot_enabled_for_language,
11514 )
11515 }
11516
11517 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11518 /// with each line being an array of {text, highlight} objects.
11519 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11520 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11521 return;
11522 };
11523
11524 #[derive(Serialize)]
11525 struct Chunk<'a> {
11526 text: String,
11527 highlight: Option<&'a str>,
11528 }
11529
11530 let snapshot = buffer.read(cx).snapshot();
11531 let range = self
11532 .selected_text_range(cx)
11533 .and_then(|selected_range| {
11534 if selected_range.is_empty() {
11535 None
11536 } else {
11537 Some(selected_range)
11538 }
11539 })
11540 .unwrap_or_else(|| 0..snapshot.len());
11541
11542 let chunks = snapshot.chunks(range, true);
11543 let mut lines = Vec::new();
11544 let mut line: VecDeque<Chunk> = VecDeque::new();
11545
11546 let Some(style) = self.style.as_ref() else {
11547 return;
11548 };
11549
11550 for chunk in chunks {
11551 let highlight = chunk
11552 .syntax_highlight_id
11553 .and_then(|id| id.name(&style.syntax));
11554 let mut chunk_lines = chunk.text.split('\n').peekable();
11555 while let Some(text) = chunk_lines.next() {
11556 let mut merged_with_last_token = false;
11557 if let Some(last_token) = line.back_mut() {
11558 if last_token.highlight == highlight {
11559 last_token.text.push_str(text);
11560 merged_with_last_token = true;
11561 }
11562 }
11563
11564 if !merged_with_last_token {
11565 line.push_back(Chunk {
11566 text: text.into(),
11567 highlight,
11568 });
11569 }
11570
11571 if chunk_lines.peek().is_some() {
11572 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11573 line.pop_front();
11574 }
11575 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11576 line.pop_back();
11577 }
11578
11579 lines.push(mem::take(&mut line));
11580 }
11581 }
11582 }
11583
11584 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11585 return;
11586 };
11587 cx.write_to_clipboard(ClipboardItem::new(lines));
11588 }
11589
11590 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11591 &self.inlay_hint_cache
11592 }
11593
11594 pub fn replay_insert_event(
11595 &mut self,
11596 text: &str,
11597 relative_utf16_range: Option<Range<isize>>,
11598 cx: &mut ViewContext<Self>,
11599 ) {
11600 if !self.input_enabled {
11601 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11602 return;
11603 }
11604 if let Some(relative_utf16_range) = relative_utf16_range {
11605 let selections = self.selections.all::<OffsetUtf16>(cx);
11606 self.change_selections(None, cx, |s| {
11607 let new_ranges = selections.into_iter().map(|range| {
11608 let start = OffsetUtf16(
11609 range
11610 .head()
11611 .0
11612 .saturating_add_signed(relative_utf16_range.start),
11613 );
11614 let end = OffsetUtf16(
11615 range
11616 .head()
11617 .0
11618 .saturating_add_signed(relative_utf16_range.end),
11619 );
11620 start..end
11621 });
11622 s.select_ranges(new_ranges);
11623 });
11624 }
11625
11626 self.handle_input(text, cx);
11627 }
11628
11629 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11630 let Some(project) = self.project.as_ref() else {
11631 return false;
11632 };
11633 let project = project.read(cx);
11634
11635 let mut supports = false;
11636 self.buffer().read(cx).for_each_buffer(|buffer| {
11637 if !supports {
11638 supports = project
11639 .language_servers_for_buffer(buffer.read(cx), cx)
11640 .any(
11641 |(_, server)| match server.capabilities().inlay_hint_provider {
11642 Some(lsp::OneOf::Left(enabled)) => enabled,
11643 Some(lsp::OneOf::Right(_)) => true,
11644 None => false,
11645 },
11646 )
11647 }
11648 });
11649 supports
11650 }
11651
11652 pub fn focus(&self, cx: &mut WindowContext) {
11653 cx.focus(&self.focus_handle)
11654 }
11655
11656 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11657 self.focus_handle.is_focused(cx)
11658 }
11659
11660 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11661 cx.emit(EditorEvent::Focused);
11662
11663 if let Some(descendant) = self
11664 .last_focused_descendant
11665 .take()
11666 .and_then(|descendant| descendant.upgrade())
11667 {
11668 cx.focus(&descendant);
11669 } else {
11670 if let Some(blame) = self.blame.as_ref() {
11671 blame.update(cx, GitBlame::focus)
11672 }
11673
11674 self.blink_manager.update(cx, BlinkManager::enable);
11675 self.show_cursor_names(cx);
11676 self.buffer.update(cx, |buffer, cx| {
11677 buffer.finalize_last_transaction(cx);
11678 if self.leader_peer_id.is_none() {
11679 buffer.set_active_selections(
11680 &self.selections.disjoint_anchors(),
11681 self.selections.line_mode,
11682 self.cursor_shape,
11683 cx,
11684 );
11685 }
11686 });
11687 }
11688 }
11689
11690 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
11691 cx.emit(EditorEvent::FocusedIn)
11692 }
11693
11694 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
11695 if event.blurred != self.focus_handle {
11696 self.last_focused_descendant = Some(event.blurred);
11697 }
11698 }
11699
11700 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11701 self.blink_manager.update(cx, BlinkManager::disable);
11702 self.buffer
11703 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11704
11705 if let Some(blame) = self.blame.as_ref() {
11706 blame.update(cx, GitBlame::blur)
11707 }
11708 if !self.hover_state.focused(cx) {
11709 hide_hover(self, cx);
11710 }
11711
11712 self.hide_context_menu(cx);
11713 cx.emit(EditorEvent::Blurred);
11714 cx.notify();
11715 }
11716
11717 pub fn register_action<A: Action>(
11718 &mut self,
11719 listener: impl Fn(&A, &mut WindowContext) + 'static,
11720 ) -> Subscription {
11721 let id = self.next_editor_action_id.post_inc();
11722 let listener = Arc::new(listener);
11723 self.editor_actions.borrow_mut().insert(
11724 id,
11725 Box::new(move |cx| {
11726 let _view = cx.view().clone();
11727 let cx = cx.window_context();
11728 let listener = listener.clone();
11729 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11730 let action = action.downcast_ref().unwrap();
11731 if phase == DispatchPhase::Bubble {
11732 listener(action, cx)
11733 }
11734 })
11735 }),
11736 );
11737
11738 let editor_actions = self.editor_actions.clone();
11739 Subscription::new(move || {
11740 editor_actions.borrow_mut().remove(&id);
11741 })
11742 }
11743
11744 pub fn file_header_size(&self) -> u8 {
11745 self.file_header_size
11746 }
11747
11748 pub fn revert(
11749 &mut self,
11750 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
11751 cx: &mut ViewContext<Self>,
11752 ) {
11753 self.buffer().update(cx, |multi_buffer, cx| {
11754 for (buffer_id, changes) in revert_changes {
11755 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
11756 buffer.update(cx, |buffer, cx| {
11757 buffer.edit(
11758 changes.into_iter().map(|(range, text)| {
11759 (range, text.to_string().map(Arc::<str>::from))
11760 }),
11761 None,
11762 cx,
11763 );
11764 });
11765 }
11766 }
11767 });
11768 self.change_selections(None, cx, |selections| selections.refresh());
11769 }
11770
11771 pub fn to_pixel_point(
11772 &mut self,
11773 source: multi_buffer::Anchor,
11774 editor_snapshot: &EditorSnapshot,
11775 cx: &mut ViewContext<Self>,
11776 ) -> Option<gpui::Point<Pixels>> {
11777 let text_layout_details = self.text_layout_details(cx);
11778 let line_height = text_layout_details
11779 .editor_style
11780 .text
11781 .line_height_in_pixels(cx.rem_size());
11782 let source_point = source.to_display_point(editor_snapshot);
11783 let first_visible_line = text_layout_details
11784 .scroll_anchor
11785 .anchor
11786 .to_display_point(editor_snapshot);
11787 if first_visible_line > source_point {
11788 return None;
11789 }
11790 let source_x = editor_snapshot.x_for_display_point(source_point, &text_layout_details);
11791 let source_y = line_height
11792 * ((source_point.row() - first_visible_line.row()).0 as f32
11793 - text_layout_details.scroll_anchor.offset.y);
11794 Some(gpui::Point::new(source_x, source_y))
11795 }
11796
11797 pub fn display_to_pixel_point(
11798 &mut self,
11799 source: DisplayPoint,
11800 editor_snapshot: &EditorSnapshot,
11801 cx: &mut ViewContext<Self>,
11802 ) -> Option<gpui::Point<Pixels>> {
11803 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
11804 let text_layout_details = self.text_layout_details(cx);
11805 let first_visible_line = text_layout_details
11806 .scroll_anchor
11807 .anchor
11808 .to_display_point(editor_snapshot);
11809 if first_visible_line > source {
11810 return None;
11811 }
11812 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
11813 let source_y = line_height * (source.row() - first_visible_line.row()).0 as f32;
11814 Some(gpui::Point::new(source_x, source_y))
11815 }
11816}
11817
11818fn hunks_for_selections(
11819 multi_buffer_snapshot: &MultiBufferSnapshot,
11820 selections: &[Selection<Anchor>],
11821) -> Vec<DiffHunk<MultiBufferRow>> {
11822 let buffer_rows_for_selections = selections.iter().map(|selection| {
11823 let head = selection.head();
11824 let tail = selection.tail();
11825 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11826 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11827 if start > end {
11828 end..start
11829 } else {
11830 start..end
11831 }
11832 });
11833
11834 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
11835}
11836
11837pub fn hunks_for_rows(
11838 rows: impl Iterator<Item = Range<MultiBufferRow>>,
11839 multi_buffer_snapshot: &MultiBufferSnapshot,
11840) -> Vec<DiffHunk<MultiBufferRow>> {
11841 let mut hunks = Vec::new();
11842 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11843 HashMap::default();
11844 for selected_multi_buffer_rows in rows {
11845 let query_rows =
11846 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11847 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11848 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11849 // when the caret is just above or just below the deleted hunk.
11850 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11851 let related_to_selection = if allow_adjacent {
11852 hunk.associated_range.overlaps(&query_rows)
11853 || hunk.associated_range.start == query_rows.end
11854 || hunk.associated_range.end == query_rows.start
11855 } else {
11856 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11857 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11858 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11859 || selected_multi_buffer_rows.end == hunk.associated_range.start
11860 };
11861 if related_to_selection {
11862 if !processed_buffer_rows
11863 .entry(hunk.buffer_id)
11864 .or_default()
11865 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11866 {
11867 continue;
11868 }
11869 hunks.push(hunk);
11870 }
11871 }
11872 }
11873
11874 hunks
11875}
11876
11877pub trait CollaborationHub {
11878 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11879 fn user_participant_indices<'a>(
11880 &self,
11881 cx: &'a AppContext,
11882 ) -> &'a HashMap<u64, ParticipantIndex>;
11883 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11884}
11885
11886impl CollaborationHub for Model<Project> {
11887 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11888 self.read(cx).collaborators()
11889 }
11890
11891 fn user_participant_indices<'a>(
11892 &self,
11893 cx: &'a AppContext,
11894 ) -> &'a HashMap<u64, ParticipantIndex> {
11895 self.read(cx).user_store().read(cx).participant_indices()
11896 }
11897
11898 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11899 let this = self.read(cx);
11900 let user_ids = this.collaborators().values().map(|c| c.user_id);
11901 this.user_store().read_with(cx, |user_store, cx| {
11902 user_store.participant_names(user_ids, cx)
11903 })
11904 }
11905}
11906
11907pub trait CompletionProvider {
11908 fn completions(
11909 &self,
11910 buffer: &Model<Buffer>,
11911 buffer_position: text::Anchor,
11912 trigger: CompletionContext,
11913 cx: &mut ViewContext<Editor>,
11914 ) -> Task<Result<Vec<Completion>>>;
11915
11916 fn resolve_completions(
11917 &self,
11918 buffer: Model<Buffer>,
11919 completion_indices: Vec<usize>,
11920 completions: Arc<RwLock<Box<[Completion]>>>,
11921 cx: &mut ViewContext<Editor>,
11922 ) -> Task<Result<bool>>;
11923
11924 fn apply_additional_edits_for_completion(
11925 &self,
11926 buffer: Model<Buffer>,
11927 completion: Completion,
11928 push_to_history: bool,
11929 cx: &mut ViewContext<Editor>,
11930 ) -> Task<Result<Option<language::Transaction>>>;
11931
11932 fn is_completion_trigger(
11933 &self,
11934 buffer: &Model<Buffer>,
11935 position: language::Anchor,
11936 text: &str,
11937 trigger_in_words: bool,
11938 cx: &mut ViewContext<Editor>,
11939 ) -> bool;
11940}
11941
11942fn snippet_completions(
11943 project: &Project,
11944 buffer: &Model<Buffer>,
11945 buffer_position: text::Anchor,
11946 cx: &mut AppContext,
11947) -> Vec<Completion> {
11948 let language = buffer.read(cx).language_at(buffer_position);
11949 let language_name = language.as_ref().map(|language| language.lsp_id());
11950 let snippet_store = project.snippets().read(cx);
11951 let snippets = snippet_store.snippets_for(language_name, cx);
11952
11953 if snippets.is_empty() {
11954 return vec![];
11955 }
11956 let snapshot = buffer.read(cx).text_snapshot();
11957 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
11958
11959 let mut lines = chunks.lines();
11960 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
11961 return vec![];
11962 };
11963
11964 let scope = language.map(|language| language.default_scope());
11965 let mut last_word = line_at
11966 .chars()
11967 .rev()
11968 .take_while(|c| char_kind(&scope, *c) == CharKind::Word)
11969 .collect::<String>();
11970 last_word = last_word.chars().rev().collect();
11971 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
11972 let to_lsp = |point: &text::Anchor| {
11973 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
11974 point_to_lsp(end)
11975 };
11976 let lsp_end = to_lsp(&buffer_position);
11977 snippets
11978 .into_iter()
11979 .filter_map(|snippet| {
11980 let matching_prefix = snippet
11981 .prefix
11982 .iter()
11983 .find(|prefix| prefix.starts_with(&last_word))?;
11984 let start = as_offset - last_word.len();
11985 let start = snapshot.anchor_before(start);
11986 let range = start..buffer_position;
11987 let lsp_start = to_lsp(&start);
11988 let lsp_range = lsp::Range {
11989 start: lsp_start,
11990 end: lsp_end,
11991 };
11992 Some(Completion {
11993 old_range: range,
11994 new_text: snippet.body.clone(),
11995 label: CodeLabel {
11996 text: matching_prefix.clone(),
11997 runs: vec![],
11998 filter_range: 0..matching_prefix.len(),
11999 },
12000 server_id: LanguageServerId(usize::MAX),
12001 documentation: snippet
12002 .description
12003 .clone()
12004 .map(|description| Documentation::SingleLine(description)),
12005 lsp_completion: lsp::CompletionItem {
12006 label: snippet.prefix.first().unwrap().clone(),
12007 kind: Some(CompletionItemKind::SNIPPET),
12008 label_details: snippet.description.as_ref().map(|description| {
12009 lsp::CompletionItemLabelDetails {
12010 detail: Some(description.clone()),
12011 description: None,
12012 }
12013 }),
12014 insert_text_format: Some(InsertTextFormat::SNIPPET),
12015 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
12016 lsp::InsertReplaceEdit {
12017 new_text: snippet.body.clone(),
12018 insert: lsp_range,
12019 replace: lsp_range,
12020 },
12021 )),
12022 filter_text: Some(snippet.body.clone()),
12023 sort_text: Some(char::MAX.to_string()),
12024 ..Default::default()
12025 },
12026 confirm: None,
12027 show_new_completions_on_confirm: false,
12028 })
12029 })
12030 .collect()
12031}
12032
12033impl CompletionProvider for Model<Project> {
12034 fn completions(
12035 &self,
12036 buffer: &Model<Buffer>,
12037 buffer_position: text::Anchor,
12038 options: CompletionContext,
12039 cx: &mut ViewContext<Editor>,
12040 ) -> Task<Result<Vec<Completion>>> {
12041 self.update(cx, |project, cx| {
12042 let snippets = snippet_completions(project, buffer, buffer_position, cx);
12043 let project_completions = project.completions(&buffer, buffer_position, options, cx);
12044 cx.background_executor().spawn(async move {
12045 let mut completions = project_completions.await?;
12046 //let snippets = snippets.into_iter().;
12047 completions.extend(snippets);
12048 Ok(completions)
12049 })
12050 })
12051 }
12052
12053 fn resolve_completions(
12054 &self,
12055 buffer: Model<Buffer>,
12056 completion_indices: Vec<usize>,
12057 completions: Arc<RwLock<Box<[Completion]>>>,
12058 cx: &mut ViewContext<Editor>,
12059 ) -> Task<Result<bool>> {
12060 self.update(cx, |project, cx| {
12061 project.resolve_completions(buffer, completion_indices, completions, cx)
12062 })
12063 }
12064
12065 fn apply_additional_edits_for_completion(
12066 &self,
12067 buffer: Model<Buffer>,
12068 completion: Completion,
12069 push_to_history: bool,
12070 cx: &mut ViewContext<Editor>,
12071 ) -> Task<Result<Option<language::Transaction>>> {
12072 self.update(cx, |project, cx| {
12073 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
12074 })
12075 }
12076
12077 fn is_completion_trigger(
12078 &self,
12079 buffer: &Model<Buffer>,
12080 position: language::Anchor,
12081 text: &str,
12082 trigger_in_words: bool,
12083 cx: &mut ViewContext<Editor>,
12084 ) -> bool {
12085 if !EditorSettings::get_global(cx).show_completions_on_input {
12086 return false;
12087 }
12088
12089 let mut chars = text.chars();
12090 let char = if let Some(char) = chars.next() {
12091 char
12092 } else {
12093 return false;
12094 };
12095 if chars.next().is_some() {
12096 return false;
12097 }
12098
12099 let buffer = buffer.read(cx);
12100 let scope = buffer.snapshot().language_scope_at(position);
12101 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
12102 return true;
12103 }
12104
12105 buffer
12106 .completion_triggers()
12107 .iter()
12108 .any(|string| string == text)
12109 }
12110}
12111
12112fn inlay_hint_settings(
12113 location: Anchor,
12114 snapshot: &MultiBufferSnapshot,
12115 cx: &mut ViewContext<'_, Editor>,
12116) -> InlayHintSettings {
12117 let file = snapshot.file_at(location);
12118 let language = snapshot.language_at(location);
12119 let settings = all_language_settings(file, cx);
12120 settings
12121 .language(language.map(|l| l.name()).as_deref())
12122 .inlay_hints
12123}
12124
12125fn consume_contiguous_rows(
12126 contiguous_row_selections: &mut Vec<Selection<Point>>,
12127 selection: &Selection<Point>,
12128 display_map: &DisplaySnapshot,
12129 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
12130) -> (MultiBufferRow, MultiBufferRow) {
12131 contiguous_row_selections.push(selection.clone());
12132 let start_row = MultiBufferRow(selection.start.row);
12133 let mut end_row = ending_row(selection, display_map);
12134
12135 while let Some(next_selection) = selections.peek() {
12136 if next_selection.start.row <= end_row.0 {
12137 end_row = ending_row(next_selection, display_map);
12138 contiguous_row_selections.push(selections.next().unwrap().clone());
12139 } else {
12140 break;
12141 }
12142 }
12143 (start_row, end_row)
12144}
12145
12146fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
12147 if next_selection.end.column > 0 || next_selection.is_empty() {
12148 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
12149 } else {
12150 MultiBufferRow(next_selection.end.row)
12151 }
12152}
12153
12154impl EditorSnapshot {
12155 pub fn remote_selections_in_range<'a>(
12156 &'a self,
12157 range: &'a Range<Anchor>,
12158 collaboration_hub: &dyn CollaborationHub,
12159 cx: &'a AppContext,
12160 ) -> impl 'a + Iterator<Item = RemoteSelection> {
12161 let participant_names = collaboration_hub.user_names(cx);
12162 let participant_indices = collaboration_hub.user_participant_indices(cx);
12163 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
12164 let collaborators_by_replica_id = collaborators_by_peer_id
12165 .iter()
12166 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
12167 .collect::<HashMap<_, _>>();
12168 self.buffer_snapshot
12169 .selections_in_range(range, false)
12170 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
12171 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
12172 let participant_index = participant_indices.get(&collaborator.user_id).copied();
12173 let user_name = participant_names.get(&collaborator.user_id).cloned();
12174 Some(RemoteSelection {
12175 replica_id,
12176 selection,
12177 cursor_shape,
12178 line_mode,
12179 participant_index,
12180 peer_id: collaborator.peer_id,
12181 user_name,
12182 })
12183 })
12184 }
12185
12186 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
12187 self.display_snapshot.buffer_snapshot.language_at(position)
12188 }
12189
12190 pub fn is_focused(&self) -> bool {
12191 self.is_focused
12192 }
12193
12194 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
12195 self.placeholder_text.as_ref()
12196 }
12197
12198 pub fn scroll_position(&self) -> gpui::Point<f32> {
12199 self.scroll_anchor.scroll_position(&self.display_snapshot)
12200 }
12201
12202 pub fn gutter_dimensions(
12203 &self,
12204 font_id: FontId,
12205 font_size: Pixels,
12206 em_width: Pixels,
12207 max_line_number_width: Pixels,
12208 cx: &AppContext,
12209 ) -> GutterDimensions {
12210 if !self.show_gutter {
12211 return GutterDimensions::default();
12212 }
12213 let descent = cx.text_system().descent(font_id, font_size);
12214
12215 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
12216 matches!(
12217 ProjectSettings::get_global(cx).git.git_gutter,
12218 Some(GitGutterSetting::TrackedFiles)
12219 )
12220 });
12221 let gutter_settings = EditorSettings::get_global(cx).gutter;
12222 let show_line_numbers = self
12223 .show_line_numbers
12224 .unwrap_or(gutter_settings.line_numbers);
12225 let line_gutter_width = if show_line_numbers {
12226 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
12227 let min_width_for_number_on_gutter = em_width * 4.0;
12228 max_line_number_width.max(min_width_for_number_on_gutter)
12229 } else {
12230 0.0.into()
12231 };
12232
12233 let show_code_actions = self
12234 .show_code_actions
12235 .unwrap_or(gutter_settings.code_actions);
12236
12237 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
12238
12239 let git_blame_entries_width = self
12240 .render_git_blame_gutter
12241 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
12242
12243 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
12244 left_padding += if show_code_actions || show_runnables {
12245 em_width * 3.0
12246 } else if show_git_gutter && show_line_numbers {
12247 em_width * 2.0
12248 } else if show_git_gutter || show_line_numbers {
12249 em_width
12250 } else {
12251 px(0.)
12252 };
12253
12254 let right_padding = if gutter_settings.folds && show_line_numbers {
12255 em_width * 4.0
12256 } else if gutter_settings.folds {
12257 em_width * 3.0
12258 } else if show_line_numbers {
12259 em_width
12260 } else {
12261 px(0.)
12262 };
12263
12264 GutterDimensions {
12265 left_padding,
12266 right_padding,
12267 width: line_gutter_width + left_padding + right_padding,
12268 margin: -descent,
12269 git_blame_entries_width,
12270 }
12271 }
12272
12273 pub fn render_fold_toggle(
12274 &self,
12275 buffer_row: MultiBufferRow,
12276 row_contains_cursor: bool,
12277 editor: View<Editor>,
12278 cx: &mut WindowContext,
12279 ) -> Option<AnyElement> {
12280 let folded = self.is_line_folded(buffer_row);
12281
12282 if let Some(crease) = self
12283 .crease_snapshot
12284 .query_row(buffer_row, &self.buffer_snapshot)
12285 {
12286 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12287 if folded {
12288 editor.update(cx, |editor, cx| {
12289 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12290 });
12291 } else {
12292 editor.update(cx, |editor, cx| {
12293 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12294 });
12295 }
12296 });
12297
12298 Some((crease.render_toggle)(
12299 buffer_row,
12300 folded,
12301 toggle_callback,
12302 cx,
12303 ))
12304 } else if folded
12305 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12306 {
12307 Some(
12308 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12309 .selected(folded)
12310 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12311 if folded {
12312 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12313 } else {
12314 this.fold_at(&FoldAt { buffer_row }, cx);
12315 }
12316 }))
12317 .into_any_element(),
12318 )
12319 } else {
12320 None
12321 }
12322 }
12323
12324 pub fn render_crease_trailer(
12325 &self,
12326 buffer_row: MultiBufferRow,
12327 cx: &mut WindowContext,
12328 ) -> Option<AnyElement> {
12329 let folded = self.is_line_folded(buffer_row);
12330 let crease = self
12331 .crease_snapshot
12332 .query_row(buffer_row, &self.buffer_snapshot)?;
12333 Some((crease.render_trailer)(buffer_row, folded, cx))
12334 }
12335}
12336
12337impl Deref for EditorSnapshot {
12338 type Target = DisplaySnapshot;
12339
12340 fn deref(&self) -> &Self::Target {
12341 &self.display_snapshot
12342 }
12343}
12344
12345#[derive(Clone, Debug, PartialEq, Eq)]
12346pub enum EditorEvent {
12347 InputIgnored {
12348 text: Arc<str>,
12349 },
12350 InputHandled {
12351 utf16_range_to_replace: Option<Range<isize>>,
12352 text: Arc<str>,
12353 },
12354 ExcerptsAdded {
12355 buffer: Model<Buffer>,
12356 predecessor: ExcerptId,
12357 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12358 },
12359 ExcerptsRemoved {
12360 ids: Vec<ExcerptId>,
12361 },
12362 ExcerptsEdited {
12363 ids: Vec<ExcerptId>,
12364 },
12365 ExcerptsExpanded {
12366 ids: Vec<ExcerptId>,
12367 },
12368 BufferEdited,
12369 Edited {
12370 transaction_id: clock::Lamport,
12371 },
12372 Reparsed(BufferId),
12373 Focused,
12374 FocusedIn,
12375 Blurred,
12376 DirtyChanged,
12377 Saved,
12378 TitleChanged,
12379 DiffBaseChanged,
12380 SelectionsChanged {
12381 local: bool,
12382 },
12383 ScrollPositionChanged {
12384 local: bool,
12385 autoscroll: bool,
12386 },
12387 Closed,
12388 TransactionUndone {
12389 transaction_id: clock::Lamport,
12390 },
12391 TransactionBegun {
12392 transaction_id: clock::Lamport,
12393 },
12394}
12395
12396impl EventEmitter<EditorEvent> for Editor {}
12397
12398impl FocusableView for Editor {
12399 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12400 self.focus_handle.clone()
12401 }
12402}
12403
12404impl Render for Editor {
12405 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12406 let settings = ThemeSettings::get_global(cx);
12407
12408 let text_style = match self.mode {
12409 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12410 color: cx.theme().colors().editor_foreground,
12411 font_family: settings.ui_font.family.clone(),
12412 font_features: settings.ui_font.features.clone(),
12413 font_size: rems(0.875).into(),
12414 font_weight: settings.ui_font.weight,
12415 font_style: FontStyle::Normal,
12416 line_height: relative(settings.buffer_line_height.value()),
12417 background_color: None,
12418 underline: None,
12419 strikethrough: None,
12420 white_space: WhiteSpace::Normal,
12421 },
12422 EditorMode::Full => TextStyle {
12423 color: cx.theme().colors().editor_foreground,
12424 font_family: settings.buffer_font.family.clone(),
12425 font_features: settings.buffer_font.features.clone(),
12426 font_size: settings.buffer_font_size(cx).into(),
12427 font_weight: settings.buffer_font.weight,
12428 font_style: FontStyle::Normal,
12429 line_height: relative(settings.buffer_line_height.value()),
12430 background_color: None,
12431 underline: None,
12432 strikethrough: None,
12433 white_space: WhiteSpace::Normal,
12434 },
12435 };
12436
12437 let background = match self.mode {
12438 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12439 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12440 EditorMode::Full => cx.theme().colors().editor_background,
12441 };
12442
12443 EditorElement::new(
12444 cx.view(),
12445 EditorStyle {
12446 background,
12447 local_player: cx.theme().players().local(),
12448 text: text_style,
12449 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12450 syntax: cx.theme().syntax().clone(),
12451 status: cx.theme().status().clone(),
12452 inlay_hints_style: HighlightStyle {
12453 color: Some(cx.theme().status().hint),
12454 ..HighlightStyle::default()
12455 },
12456 suggestions_style: HighlightStyle {
12457 color: Some(cx.theme().status().predictive),
12458 ..HighlightStyle::default()
12459 },
12460 },
12461 )
12462 }
12463}
12464
12465impl ViewInputHandler for Editor {
12466 fn text_for_range(
12467 &mut self,
12468 range_utf16: Range<usize>,
12469 cx: &mut ViewContext<Self>,
12470 ) -> Option<String> {
12471 Some(
12472 self.buffer
12473 .read(cx)
12474 .read(cx)
12475 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12476 .collect(),
12477 )
12478 }
12479
12480 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12481 // Prevent the IME menu from appearing when holding down an alphabetic key
12482 // while input is disabled.
12483 if !self.input_enabled {
12484 return None;
12485 }
12486
12487 let range = self.selections.newest::<OffsetUtf16>(cx).range();
12488 Some(range.start.0..range.end.0)
12489 }
12490
12491 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12492 let snapshot = self.buffer.read(cx).read(cx);
12493 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
12494 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12495 }
12496
12497 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12498 self.clear_highlights::<InputComposition>(cx);
12499 self.ime_transaction.take();
12500 }
12501
12502 fn replace_text_in_range(
12503 &mut self,
12504 range_utf16: Option<Range<usize>>,
12505 text: &str,
12506 cx: &mut ViewContext<Self>,
12507 ) {
12508 if !self.input_enabled {
12509 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12510 return;
12511 }
12512
12513 self.transact(cx, |this, cx| {
12514 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12515 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12516 Some(this.selection_replacement_ranges(range_utf16, cx))
12517 } else {
12518 this.marked_text_ranges(cx)
12519 };
12520
12521 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12522 let newest_selection_id = this.selections.newest_anchor().id;
12523 this.selections
12524 .all::<OffsetUtf16>(cx)
12525 .iter()
12526 .zip(ranges_to_replace.iter())
12527 .find_map(|(selection, range)| {
12528 if selection.id == newest_selection_id {
12529 Some(
12530 (range.start.0 as isize - selection.head().0 as isize)
12531 ..(range.end.0 as isize - selection.head().0 as isize),
12532 )
12533 } else {
12534 None
12535 }
12536 })
12537 });
12538
12539 cx.emit(EditorEvent::InputHandled {
12540 utf16_range_to_replace: range_to_replace,
12541 text: text.into(),
12542 });
12543
12544 if let Some(new_selected_ranges) = new_selected_ranges {
12545 this.change_selections(None, cx, |selections| {
12546 selections.select_ranges(new_selected_ranges)
12547 });
12548 this.backspace(&Default::default(), cx);
12549 }
12550
12551 this.handle_input(text, cx);
12552 });
12553
12554 if let Some(transaction) = self.ime_transaction {
12555 self.buffer.update(cx, |buffer, cx| {
12556 buffer.group_until_transaction(transaction, cx);
12557 });
12558 }
12559
12560 self.unmark_text(cx);
12561 }
12562
12563 fn replace_and_mark_text_in_range(
12564 &mut self,
12565 range_utf16: Option<Range<usize>>,
12566 text: &str,
12567 new_selected_range_utf16: Option<Range<usize>>,
12568 cx: &mut ViewContext<Self>,
12569 ) {
12570 if !self.input_enabled {
12571 return;
12572 }
12573
12574 let transaction = self.transact(cx, |this, cx| {
12575 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12576 let snapshot = this.buffer.read(cx).read(cx);
12577 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12578 for marked_range in &mut marked_ranges {
12579 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12580 marked_range.start.0 += relative_range_utf16.start;
12581 marked_range.start =
12582 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12583 marked_range.end =
12584 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12585 }
12586 }
12587 Some(marked_ranges)
12588 } else if let Some(range_utf16) = range_utf16 {
12589 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12590 Some(this.selection_replacement_ranges(range_utf16, cx))
12591 } else {
12592 None
12593 };
12594
12595 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12596 let newest_selection_id = this.selections.newest_anchor().id;
12597 this.selections
12598 .all::<OffsetUtf16>(cx)
12599 .iter()
12600 .zip(ranges_to_replace.iter())
12601 .find_map(|(selection, range)| {
12602 if selection.id == newest_selection_id {
12603 Some(
12604 (range.start.0 as isize - selection.head().0 as isize)
12605 ..(range.end.0 as isize - selection.head().0 as isize),
12606 )
12607 } else {
12608 None
12609 }
12610 })
12611 });
12612
12613 cx.emit(EditorEvent::InputHandled {
12614 utf16_range_to_replace: range_to_replace,
12615 text: text.into(),
12616 });
12617
12618 if let Some(ranges) = ranges_to_replace {
12619 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12620 }
12621
12622 let marked_ranges = {
12623 let snapshot = this.buffer.read(cx).read(cx);
12624 this.selections
12625 .disjoint_anchors()
12626 .iter()
12627 .map(|selection| {
12628 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12629 })
12630 .collect::<Vec<_>>()
12631 };
12632
12633 if text.is_empty() {
12634 this.unmark_text(cx);
12635 } else {
12636 this.highlight_text::<InputComposition>(
12637 marked_ranges.clone(),
12638 HighlightStyle {
12639 underline: Some(UnderlineStyle {
12640 thickness: px(1.),
12641 color: None,
12642 wavy: false,
12643 }),
12644 ..Default::default()
12645 },
12646 cx,
12647 );
12648 }
12649
12650 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12651 let use_autoclose = this.use_autoclose;
12652 let use_auto_surround = this.use_auto_surround;
12653 this.set_use_autoclose(false);
12654 this.set_use_auto_surround(false);
12655 this.handle_input(text, cx);
12656 this.set_use_autoclose(use_autoclose);
12657 this.set_use_auto_surround(use_auto_surround);
12658
12659 if let Some(new_selected_range) = new_selected_range_utf16 {
12660 let snapshot = this.buffer.read(cx).read(cx);
12661 let new_selected_ranges = marked_ranges
12662 .into_iter()
12663 .map(|marked_range| {
12664 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12665 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12666 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12667 snapshot.clip_offset_utf16(new_start, Bias::Left)
12668 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12669 })
12670 .collect::<Vec<_>>();
12671
12672 drop(snapshot);
12673 this.change_selections(None, cx, |selections| {
12674 selections.select_ranges(new_selected_ranges)
12675 });
12676 }
12677 });
12678
12679 self.ime_transaction = self.ime_transaction.or(transaction);
12680 if let Some(transaction) = self.ime_transaction {
12681 self.buffer.update(cx, |buffer, cx| {
12682 buffer.group_until_transaction(transaction, cx);
12683 });
12684 }
12685
12686 if self.text_highlights::<InputComposition>(cx).is_none() {
12687 self.ime_transaction.take();
12688 }
12689 }
12690
12691 fn bounds_for_range(
12692 &mut self,
12693 range_utf16: Range<usize>,
12694 element_bounds: gpui::Bounds<Pixels>,
12695 cx: &mut ViewContext<Self>,
12696 ) -> Option<gpui::Bounds<Pixels>> {
12697 let text_layout_details = self.text_layout_details(cx);
12698 let style = &text_layout_details.editor_style;
12699 let font_id = cx.text_system().resolve_font(&style.text.font());
12700 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12701 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12702
12703 let em_width = cx
12704 .text_system()
12705 .typographic_bounds(font_id, font_size, 'm')
12706 .unwrap()
12707 .size
12708 .width;
12709
12710 let snapshot = self.snapshot(cx);
12711 let scroll_position = snapshot.scroll_position();
12712 let scroll_left = scroll_position.x * em_width;
12713
12714 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12715 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12716 + self.gutter_dimensions.width;
12717 let y = line_height * (start.row().as_f32() - scroll_position.y);
12718
12719 Some(Bounds {
12720 origin: element_bounds.origin + point(x, y),
12721 size: size(em_width, line_height),
12722 })
12723 }
12724}
12725
12726trait SelectionExt {
12727 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12728 fn spanned_rows(
12729 &self,
12730 include_end_if_at_line_start: bool,
12731 map: &DisplaySnapshot,
12732 ) -> Range<MultiBufferRow>;
12733}
12734
12735impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12736 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12737 let start = self
12738 .start
12739 .to_point(&map.buffer_snapshot)
12740 .to_display_point(map);
12741 let end = self
12742 .end
12743 .to_point(&map.buffer_snapshot)
12744 .to_display_point(map);
12745 if self.reversed {
12746 end..start
12747 } else {
12748 start..end
12749 }
12750 }
12751
12752 fn spanned_rows(
12753 &self,
12754 include_end_if_at_line_start: bool,
12755 map: &DisplaySnapshot,
12756 ) -> Range<MultiBufferRow> {
12757 let start = self.start.to_point(&map.buffer_snapshot);
12758 let mut end = self.end.to_point(&map.buffer_snapshot);
12759 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
12760 end.row -= 1;
12761 }
12762
12763 let buffer_start = map.prev_line_boundary(start).0;
12764 let buffer_end = map.next_line_boundary(end).0;
12765 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
12766 }
12767}
12768
12769impl<T: InvalidationRegion> InvalidationStack<T> {
12770 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
12771 where
12772 S: Clone + ToOffset,
12773 {
12774 while let Some(region) = self.last() {
12775 let all_selections_inside_invalidation_ranges =
12776 if selections.len() == region.ranges().len() {
12777 selections
12778 .iter()
12779 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
12780 .all(|(selection, invalidation_range)| {
12781 let head = selection.head().to_offset(buffer);
12782 invalidation_range.start <= head && invalidation_range.end >= head
12783 })
12784 } else {
12785 false
12786 };
12787
12788 if all_selections_inside_invalidation_ranges {
12789 break;
12790 } else {
12791 self.pop();
12792 }
12793 }
12794 }
12795}
12796
12797impl<T> Default for InvalidationStack<T> {
12798 fn default() -> Self {
12799 Self(Default::default())
12800 }
12801}
12802
12803impl<T> Deref for InvalidationStack<T> {
12804 type Target = Vec<T>;
12805
12806 fn deref(&self) -> &Self::Target {
12807 &self.0
12808 }
12809}
12810
12811impl<T> DerefMut for InvalidationStack<T> {
12812 fn deref_mut(&mut self) -> &mut Self::Target {
12813 &mut self.0
12814 }
12815}
12816
12817impl InvalidationRegion for SnippetState {
12818 fn ranges(&self) -> &[Range<Anchor>] {
12819 &self.ranges[self.active_index]
12820 }
12821}
12822
12823pub fn diagnostic_block_renderer(
12824 diagnostic: Diagnostic,
12825 max_message_rows: Option<u8>,
12826 allow_closing: bool,
12827 _is_valid: bool,
12828) -> RenderBlock {
12829 let (text_without_backticks, code_ranges) =
12830 highlight_diagnostic_message(&diagnostic, max_message_rows);
12831
12832 Box::new(move |cx: &mut BlockContext| {
12833 let group_id: SharedString = cx.transform_block_id.to_string().into();
12834
12835 let mut text_style = cx.text_style().clone();
12836 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
12837 let theme_settings = ThemeSettings::get_global(cx);
12838 text_style.font_family = theme_settings.buffer_font.family.clone();
12839 text_style.font_style = theme_settings.buffer_font.style;
12840 text_style.font_features = theme_settings.buffer_font.features.clone();
12841 text_style.font_weight = theme_settings.buffer_font.weight;
12842
12843 let multi_line_diagnostic = diagnostic.message.contains('\n');
12844
12845 let buttons = |diagnostic: &Diagnostic, block_id: TransformBlockId| {
12846 if multi_line_diagnostic {
12847 v_flex()
12848 } else {
12849 h_flex()
12850 }
12851 .when(allow_closing, |div| {
12852 div.children(diagnostic.is_primary.then(|| {
12853 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
12854 .icon_color(Color::Muted)
12855 .size(ButtonSize::Compact)
12856 .style(ButtonStyle::Transparent)
12857 .visible_on_hover(group_id.clone())
12858 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
12859 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
12860 }))
12861 })
12862 .child(
12863 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
12864 .icon_color(Color::Muted)
12865 .size(ButtonSize::Compact)
12866 .style(ButtonStyle::Transparent)
12867 .visible_on_hover(group_id.clone())
12868 .on_click({
12869 let message = diagnostic.message.clone();
12870 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12871 })
12872 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12873 )
12874 };
12875
12876 let icon_size = buttons(&diagnostic, cx.transform_block_id)
12877 .into_any_element()
12878 .layout_as_root(AvailableSpace::min_size(), cx);
12879
12880 h_flex()
12881 .id(cx.transform_block_id)
12882 .group(group_id.clone())
12883 .relative()
12884 .size_full()
12885 .pl(cx.gutter_dimensions.width)
12886 .w(cx.max_width + cx.gutter_dimensions.width)
12887 .child(
12888 div()
12889 .flex()
12890 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12891 .flex_shrink(),
12892 )
12893 .child(buttons(&diagnostic, cx.transform_block_id))
12894 .child(div().flex().flex_shrink_0().child(
12895 StyledText::new(text_without_backticks.clone()).with_highlights(
12896 &text_style,
12897 code_ranges.iter().map(|range| {
12898 (
12899 range.clone(),
12900 HighlightStyle {
12901 font_weight: Some(FontWeight::BOLD),
12902 ..Default::default()
12903 },
12904 )
12905 }),
12906 ),
12907 ))
12908 .into_any_element()
12909 })
12910}
12911
12912pub fn highlight_diagnostic_message(
12913 diagnostic: &Diagnostic,
12914 mut max_message_rows: Option<u8>,
12915) -> (SharedString, Vec<Range<usize>>) {
12916 let mut text_without_backticks = String::new();
12917 let mut code_ranges = Vec::new();
12918
12919 if let Some(source) = &diagnostic.source {
12920 text_without_backticks.push_str(&source);
12921 code_ranges.push(0..source.len());
12922 text_without_backticks.push_str(": ");
12923 }
12924
12925 let mut prev_offset = 0;
12926 let mut in_code_block = false;
12927 let has_row_limit = max_message_rows.is_some();
12928 let mut newline_indices = diagnostic
12929 .message
12930 .match_indices('\n')
12931 .filter(|_| has_row_limit)
12932 .map(|(ix, _)| ix)
12933 .fuse()
12934 .peekable();
12935
12936 for (quote_ix, _) in diagnostic
12937 .message
12938 .match_indices('`')
12939 .chain([(diagnostic.message.len(), "")])
12940 {
12941 let mut first_newline_ix = None;
12942 let mut last_newline_ix = None;
12943 while let Some(newline_ix) = newline_indices.peek() {
12944 if *newline_ix < quote_ix {
12945 if first_newline_ix.is_none() {
12946 first_newline_ix = Some(*newline_ix);
12947 }
12948 last_newline_ix = Some(*newline_ix);
12949
12950 if let Some(rows_left) = &mut max_message_rows {
12951 if *rows_left == 0 {
12952 break;
12953 } else {
12954 *rows_left -= 1;
12955 }
12956 }
12957 let _ = newline_indices.next();
12958 } else {
12959 break;
12960 }
12961 }
12962 let prev_len = text_without_backticks.len();
12963 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
12964 text_without_backticks.push_str(new_text);
12965 if in_code_block {
12966 code_ranges.push(prev_len..text_without_backticks.len());
12967 }
12968 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
12969 in_code_block = !in_code_block;
12970 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
12971 text_without_backticks.push_str("...");
12972 break;
12973 }
12974 }
12975
12976 (text_without_backticks.into(), code_ranges)
12977}
12978
12979fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
12980 match severity {
12981 DiagnosticSeverity::ERROR => colors.error,
12982 DiagnosticSeverity::WARNING => colors.warning,
12983 DiagnosticSeverity::INFORMATION => colors.info,
12984 DiagnosticSeverity::HINT => colors.info,
12985 _ => colors.ignored,
12986 }
12987}
12988
12989pub fn styled_runs_for_code_label<'a>(
12990 label: &'a CodeLabel,
12991 syntax_theme: &'a theme::SyntaxTheme,
12992) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12993 let fade_out = HighlightStyle {
12994 fade_out: Some(0.35),
12995 ..Default::default()
12996 };
12997
12998 let mut prev_end = label.filter_range.end;
12999 label
13000 .runs
13001 .iter()
13002 .enumerate()
13003 .flat_map(move |(ix, (range, highlight_id))| {
13004 let style = if let Some(style) = highlight_id.style(syntax_theme) {
13005 style
13006 } else {
13007 return Default::default();
13008 };
13009 let mut muted_style = style;
13010 muted_style.highlight(fade_out);
13011
13012 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
13013 if range.start >= label.filter_range.end {
13014 if range.start > prev_end {
13015 runs.push((prev_end..range.start, fade_out));
13016 }
13017 runs.push((range.clone(), muted_style));
13018 } else if range.end <= label.filter_range.end {
13019 runs.push((range.clone(), style));
13020 } else {
13021 runs.push((range.start..label.filter_range.end, style));
13022 runs.push((label.filter_range.end..range.end, muted_style));
13023 }
13024 prev_end = cmp::max(prev_end, range.end);
13025
13026 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
13027 runs.push((prev_end..label.text.len(), fade_out));
13028 }
13029
13030 runs
13031 })
13032}
13033
13034pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
13035 let mut prev_index = 0;
13036 let mut prev_codepoint: Option<char> = None;
13037 text.char_indices()
13038 .chain([(text.len(), '\0')])
13039 .filter_map(move |(index, codepoint)| {
13040 let prev_codepoint = prev_codepoint.replace(codepoint)?;
13041 let is_boundary = index == text.len()
13042 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
13043 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
13044 if is_boundary {
13045 let chunk = &text[prev_index..index];
13046 prev_index = index;
13047 Some(chunk)
13048 } else {
13049 None
13050 }
13051 })
13052}
13053
13054pub trait RangeToAnchorExt: Sized {
13055 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
13056
13057 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
13058 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
13059 anchor_range.start.to_display_point(&snapshot)..anchor_range.end.to_display_point(&snapshot)
13060 }
13061}
13062
13063impl<T: ToOffset> RangeToAnchorExt for Range<T> {
13064 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
13065 let start_offset = self.start.to_offset(snapshot);
13066 let end_offset = self.end.to_offset(snapshot);
13067 if start_offset == end_offset {
13068 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
13069 } else {
13070 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
13071 }
13072 }
13073}
13074
13075pub trait RowExt {
13076 fn as_f32(&self) -> f32;
13077
13078 fn next_row(&self) -> Self;
13079
13080 fn previous_row(&self) -> Self;
13081
13082 fn minus(&self, other: Self) -> u32;
13083}
13084
13085impl RowExt for DisplayRow {
13086 fn as_f32(&self) -> f32 {
13087 self.0 as f32
13088 }
13089
13090 fn next_row(&self) -> Self {
13091 Self(self.0 + 1)
13092 }
13093
13094 fn previous_row(&self) -> Self {
13095 Self(self.0.saturating_sub(1))
13096 }
13097
13098 fn minus(&self, other: Self) -> u32 {
13099 self.0 - other.0
13100 }
13101}
13102
13103impl RowExt for MultiBufferRow {
13104 fn as_f32(&self) -> f32 {
13105 self.0 as f32
13106 }
13107
13108 fn next_row(&self) -> Self {
13109 Self(self.0 + 1)
13110 }
13111
13112 fn previous_row(&self) -> Self {
13113 Self(self.0.saturating_sub(1))
13114 }
13115
13116 fn minus(&self, other: Self) -> u32 {
13117 self.0 - other.0
13118 }
13119}
13120
13121trait RowRangeExt {
13122 type Row;
13123
13124 fn len(&self) -> usize;
13125
13126 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
13127}
13128
13129impl RowRangeExt for Range<MultiBufferRow> {
13130 type Row = MultiBufferRow;
13131
13132 fn len(&self) -> usize {
13133 (self.end.0 - self.start.0) as usize
13134 }
13135
13136 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
13137 (self.start.0..self.end.0).map(MultiBufferRow)
13138 }
13139}
13140
13141impl RowRangeExt for Range<DisplayRow> {
13142 type Row = DisplayRow;
13143
13144 fn len(&self) -> usize {
13145 (self.end.0 - self.start.0) as usize
13146 }
13147
13148 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
13149 (self.start.0..self.end.0).map(DisplayRow)
13150 }
13151}
13152
13153fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
13154 if hunk.diff_base_byte_range.is_empty() {
13155 DiffHunkStatus::Added
13156 } else if hunk.associated_range.is_empty() {
13157 DiffHunkStatus::Removed
13158 } else {
13159 DiffHunkStatus::Modified
13160 }
13161}