1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod debounced_delay;
19pub mod display_map;
20mod editor_settings;
21mod editor_settings_controls;
22mod element;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27mod hunk_diff;
28mod indent_guides;
29mod inlay_hint_cache;
30mod inline_completion_provider;
31pub mod items;
32mod linked_editing_ranges;
33mod mouse_context_menu;
34pub mod movement;
35mod persistence;
36mod rust_analyzer_ext;
37pub mod scroll;
38mod selections_collection;
39pub mod tasks;
40
41#[cfg(test)]
42mod editor_tests;
43mod signature_help;
44#[cfg(any(test, feature = "test-support"))]
45pub mod test;
46
47use ::git::diff::{DiffHunk, DiffHunkStatus};
48use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
49pub(crate) use actions::*;
50use aho_corasick::AhoCorasick;
51use anyhow::{anyhow, Context as _, Result};
52use blink_manager::BlinkManager;
53use client::{Collaborator, ParticipantIndex};
54use clock::ReplicaId;
55use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
56use convert_case::{Case, Casing};
57use debounced_delay::DebouncedDelay;
58use display_map::*;
59pub use display_map::{DisplayPoint, FoldPlaceholder};
60pub use editor_settings::{CurrentLineHighlight, EditorSettings};
61pub use editor_settings_controls::*;
62use element::LineWithInvisibles;
63pub use element::{
64 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
65};
66use futures::FutureExt;
67use fuzzy::{StringMatch, StringMatchCandidate};
68use git::blame::GitBlame;
69use git::diff_hunk_to_display;
70use gpui::{
71 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
72 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
73 Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle, FocusOutEvent,
74 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
75 ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString,
76 Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle, UnderlineStyle,
77 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
78 WeakView, WindowContext,
79};
80use highlight_matching_bracket::refresh_matching_bracket_highlights;
81use hover_popover::{hide_hover, HoverState};
82use hunk_diff::ExpandedHunks;
83pub(crate) use hunk_diff::HoveredHunk;
84use indent_guides::ActiveIndentGuidesState;
85use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
86pub use inline_completion_provider::*;
87pub use items::MAX_TAB_TITLE_LEN;
88use itertools::Itertools;
89use language::{
90 char_kind,
91 language_settings::{self, all_language_settings, InlayHintSettings},
92 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
93 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
94 Point, Selection, SelectionGoal, TransactionId,
95};
96use language::{point_to_lsp, BufferRow, Runnable, RunnableRange};
97use linked_editing_ranges::refresh_linked_ranges;
98use task::{ResolvedTask, TaskTemplate, TaskVariables};
99
100use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
101pub use lsp::CompletionContext;
102use lsp::{
103 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
104 LanguageServerId,
105};
106use mouse_context_menu::MouseContextMenu;
107use movement::TextLayoutDetails;
108pub use multi_buffer::{
109 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
110 ToPoint,
111};
112use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
113use ordered_float::OrderedFloat;
114use parking_lot::{Mutex, RwLock};
115use project::project_settings::{GitGutterSetting, ProjectSettings};
116use project::{
117 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
118 ProjectTransaction, TaskSourceKind, WorktreeId,
119};
120use rand::prelude::*;
121use rpc::{proto::*, ErrorExt};
122use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
123use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
124use serde::{Deserialize, Serialize};
125use settings::{update_settings_file, Settings, SettingsStore};
126use smallvec::SmallVec;
127use snippet::Snippet;
128use std::{
129 any::TypeId,
130 borrow::Cow,
131 cell::RefCell,
132 cmp::{self, Ordering, Reverse},
133 mem,
134 num::NonZeroU32,
135 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
136 path::{Path, PathBuf},
137 rc::Rc,
138 sync::Arc,
139 time::{Duration, Instant},
140};
141pub use sum_tree::Bias;
142use sum_tree::TreeMap;
143use text::{BufferId, OffsetUtf16, Rope};
144use theme::{
145 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
146 ThemeColors, ThemeSettings,
147};
148use ui::{
149 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
150 ListItem, Popover, Tooltip,
151};
152use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
153use workspace::item::{ItemHandle, PreviewTabsSettings};
154use workspace::notifications::{DetachAndPromptErr, NotificationId};
155use workspace::{
156 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
157};
158use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
159
160use crate::hover_links::find_url;
161use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
162
163pub const FILE_HEADER_HEIGHT: u8 = 1;
164pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u8 = 1;
165pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u8 = 1;
166pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
167const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
168const MAX_LINE_LEN: usize = 1024;
169const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
170const MAX_SELECTION_HISTORY_LEN: usize = 1024;
171pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
172#[doc(hidden)]
173pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
174#[doc(hidden)]
175pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
176
177pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
178
179pub fn render_parsed_markdown(
180 element_id: impl Into<ElementId>,
181 parsed: &language::ParsedMarkdown,
182 editor_style: &EditorStyle,
183 workspace: Option<WeakView<Workspace>>,
184 cx: &mut WindowContext,
185) -> InteractiveText {
186 let code_span_background_color = cx
187 .theme()
188 .colors()
189 .editor_document_highlight_read_background;
190
191 let highlights = gpui::combine_highlights(
192 parsed.highlights.iter().filter_map(|(range, highlight)| {
193 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
194 Some((range.clone(), highlight))
195 }),
196 parsed
197 .regions
198 .iter()
199 .zip(&parsed.region_ranges)
200 .filter_map(|(region, range)| {
201 if region.code {
202 Some((
203 range.clone(),
204 HighlightStyle {
205 background_color: Some(code_span_background_color),
206 ..Default::default()
207 },
208 ))
209 } else {
210 None
211 }
212 }),
213 );
214
215 let mut links = Vec::new();
216 let mut link_ranges = Vec::new();
217 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
218 if let Some(link) = region.link.clone() {
219 links.push(link);
220 link_ranges.push(range.clone());
221 }
222 }
223
224 InteractiveText::new(
225 element_id,
226 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
227 )
228 .on_click(link_ranges, move |clicked_range_ix, cx| {
229 match &links[clicked_range_ix] {
230 markdown::Link::Web { url } => cx.open_url(url),
231 markdown::Link::Path { path } => {
232 if let Some(workspace) = &workspace {
233 _ = workspace.update(cx, |workspace, cx| {
234 workspace.open_abs_path(path.clone(), false, cx).detach();
235 });
236 }
237 }
238 }
239 })
240}
241
242#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
243pub(crate) enum InlayId {
244 Suggestion(usize),
245 Hint(usize),
246}
247
248impl InlayId {
249 fn id(&self) -> usize {
250 match self {
251 Self::Suggestion(id) => *id,
252 Self::Hint(id) => *id,
253 }
254 }
255}
256
257enum DiffRowHighlight {}
258enum DocumentHighlightRead {}
259enum DocumentHighlightWrite {}
260enum InputComposition {}
261
262#[derive(Copy, Clone, PartialEq, Eq)]
263pub enum Direction {
264 Prev,
265 Next,
266}
267
268pub fn init_settings(cx: &mut AppContext) {
269 EditorSettings::register(cx);
270}
271
272pub fn init(cx: &mut AppContext) {
273 init_settings(cx);
274
275 workspace::register_project_item::<Editor>(cx);
276 workspace::FollowableViewRegistry::register::<Editor>(cx);
277 workspace::register_serializable_item::<Editor>(cx);
278
279 cx.observe_new_views(
280 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
281 workspace.register_action(Editor::new_file);
282 workspace.register_action(Editor::new_file_in_direction);
283 },
284 )
285 .detach();
286
287 cx.on_action(move |_: &workspace::NewFile, cx| {
288 let app_state = workspace::AppState::global(cx);
289 if let Some(app_state) = app_state.upgrade() {
290 workspace::open_new(app_state, cx, |workspace, cx| {
291 Editor::new_file(workspace, &Default::default(), cx)
292 })
293 .detach();
294 }
295 });
296 cx.on_action(move |_: &workspace::NewWindow, cx| {
297 let app_state = workspace::AppState::global(cx);
298 if let Some(app_state) = app_state.upgrade() {
299 workspace::open_new(app_state, cx, |workspace, cx| {
300 Editor::new_file(workspace, &Default::default(), cx)
301 })
302 .detach();
303 }
304 });
305}
306
307pub struct SearchWithinRange;
308
309trait InvalidationRegion {
310 fn ranges(&self) -> &[Range<Anchor>];
311}
312
313#[derive(Clone, Debug, PartialEq)]
314pub enum SelectPhase {
315 Begin {
316 position: DisplayPoint,
317 add: bool,
318 click_count: usize,
319 },
320 BeginColumnar {
321 position: DisplayPoint,
322 reset: bool,
323 goal_column: u32,
324 },
325 Extend {
326 position: DisplayPoint,
327 click_count: usize,
328 },
329 Update {
330 position: DisplayPoint,
331 goal_column: u32,
332 scroll_delta: gpui::Point<f32>,
333 },
334 End,
335}
336
337#[derive(Clone, Debug)]
338pub enum SelectMode {
339 Character,
340 Word(Range<Anchor>),
341 Line(Range<Anchor>),
342 All,
343}
344
345#[derive(Copy, Clone, PartialEq, Eq, Debug)]
346pub enum EditorMode {
347 SingleLine { auto_width: bool },
348 AutoHeight { max_lines: usize },
349 Full,
350}
351
352#[derive(Clone, Debug)]
353pub enum SoftWrap {
354 None,
355 PreferLine,
356 EditorWidth,
357 Column(u32),
358}
359
360#[derive(Clone)]
361pub struct EditorStyle {
362 pub background: Hsla,
363 pub local_player: PlayerColor,
364 pub text: TextStyle,
365 pub scrollbar_width: Pixels,
366 pub syntax: Arc<SyntaxTheme>,
367 pub status: StatusColors,
368 pub inlay_hints_style: HighlightStyle,
369 pub suggestions_style: HighlightStyle,
370}
371
372impl Default for EditorStyle {
373 fn default() -> Self {
374 Self {
375 background: Hsla::default(),
376 local_player: PlayerColor::default(),
377 text: TextStyle::default(),
378 scrollbar_width: Pixels::default(),
379 syntax: Default::default(),
380 // HACK: Status colors don't have a real default.
381 // We should look into removing the status colors from the editor
382 // style and retrieve them directly from the theme.
383 status: StatusColors::dark(),
384 inlay_hints_style: HighlightStyle::default(),
385 suggestions_style: HighlightStyle::default(),
386 }
387 }
388}
389
390type CompletionId = usize;
391
392#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
393struct EditorActionId(usize);
394
395impl EditorActionId {
396 pub fn post_inc(&mut self) -> Self {
397 let answer = self.0;
398
399 *self = Self(answer + 1);
400
401 Self(answer)
402 }
403}
404
405// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
406// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
407
408type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
409type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
410
411struct ScrollbarMarkerState {
412 scrollbar_size: Size<Pixels>,
413 dirty: bool,
414 markers: Arc<[PaintQuad]>,
415 pending_refresh: Option<Task<Result<()>>>,
416}
417
418impl ScrollbarMarkerState {
419 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
420 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
421 }
422}
423
424impl Default for ScrollbarMarkerState {
425 fn default() -> Self {
426 Self {
427 scrollbar_size: Size::default(),
428 dirty: false,
429 markers: Arc::from([]),
430 pending_refresh: None,
431 }
432 }
433}
434
435#[derive(Clone, Debug)]
436struct RunnableTasks {
437 templates: Vec<(TaskSourceKind, TaskTemplate)>,
438 offset: MultiBufferOffset,
439 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
440 column: u32,
441 // Values of all named captures, including those starting with '_'
442 extra_variables: HashMap<String, String>,
443 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
444 context_range: Range<BufferOffset>,
445}
446
447#[derive(Clone)]
448struct ResolvedTasks {
449 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
450 position: Anchor,
451}
452#[derive(Copy, Clone, Debug)]
453struct MultiBufferOffset(usize);
454#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
455struct BufferOffset(usize);
456/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
457///
458/// See the [module level documentation](self) for more information.
459pub struct Editor {
460 focus_handle: FocusHandle,
461 last_focused_descendant: Option<WeakFocusHandle>,
462 /// The text buffer being edited
463 buffer: Model<MultiBuffer>,
464 /// Map of how text in the buffer should be displayed.
465 /// Handles soft wraps, folds, fake inlay text insertions, etc.
466 pub display_map: Model<DisplayMap>,
467 pub selections: SelectionsCollection,
468 pub scroll_manager: ScrollManager,
469 /// When inline assist editors are linked, they all render cursors because
470 /// typing enters text into each of them, even the ones that aren't focused.
471 pub(crate) show_cursor_when_unfocused: bool,
472 columnar_selection_tail: Option<Anchor>,
473 add_selections_state: Option<AddSelectionsState>,
474 select_next_state: Option<SelectNextState>,
475 select_prev_state: Option<SelectNextState>,
476 selection_history: SelectionHistory,
477 autoclose_regions: Vec<AutocloseRegion>,
478 snippet_stack: InvalidationStack<SnippetState>,
479 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
480 ime_transaction: Option<TransactionId>,
481 active_diagnostics: Option<ActiveDiagnosticGroup>,
482 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
483 project: Option<Model<Project>>,
484 completion_provider: Option<Box<dyn CompletionProvider>>,
485 collaboration_hub: Option<Box<dyn CollaborationHub>>,
486 blink_manager: Model<BlinkManager>,
487 show_cursor_names: bool,
488 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
489 pub show_local_selections: bool,
490 mode: EditorMode,
491 show_breadcrumbs: bool,
492 show_gutter: bool,
493 redact_all: bool,
494 show_line_numbers: Option<bool>,
495 show_git_diff_gutter: Option<bool>,
496 show_code_actions: Option<bool>,
497 show_runnables: Option<bool>,
498 show_wrap_guides: Option<bool>,
499 show_indent_guides: Option<bool>,
500 placeholder_text: Option<Arc<str>>,
501 highlight_order: usize,
502 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
503 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
504 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
505 scrollbar_marker_state: ScrollbarMarkerState,
506 active_indent_guides_state: ActiveIndentGuidesState,
507 nav_history: Option<ItemNavHistory>,
508 context_menu: RwLock<Option<ContextMenu>>,
509 mouse_context_menu: Option<MouseContextMenu>,
510 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
511 signature_help_state: SignatureHelpState,
512 auto_signature_help: Option<bool>,
513 find_all_references_task_sources: Vec<Anchor>,
514 next_completion_id: CompletionId,
515 completion_documentation_pre_resolve_debounce: DebouncedDelay,
516 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
517 code_actions_task: Option<Task<()>>,
518 document_highlights_task: Option<Task<()>>,
519 linked_editing_range_task: Option<Task<Option<()>>>,
520 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
521 pending_rename: Option<RenameState>,
522 searchable: bool,
523 cursor_shape: CursorShape,
524 current_line_highlight: Option<CurrentLineHighlight>,
525 collapse_matches: bool,
526 autoindent_mode: Option<AutoindentMode>,
527 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
528 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
529 input_enabled: bool,
530 use_modal_editing: bool,
531 read_only: bool,
532 leader_peer_id: Option<PeerId>,
533 remote_id: Option<ViewId>,
534 hover_state: HoverState,
535 gutter_hovered: bool,
536 hovered_link_state: Option<HoveredLinkState>,
537 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
538 active_inline_completion: Option<(Inlay, Option<Range<Anchor>>)>,
539 show_inline_completions: bool,
540 inlay_hint_cache: InlayHintCache,
541 expanded_hunks: ExpandedHunks,
542 next_inlay_id: usize,
543 _subscriptions: Vec<Subscription>,
544 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
545 gutter_dimensions: GutterDimensions,
546 pub vim_replace_map: HashMap<Range<usize>, String>,
547 style: Option<EditorStyle>,
548 next_editor_action_id: EditorActionId,
549 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
550 use_autoclose: bool,
551 use_auto_surround: bool,
552 auto_replace_emoji_shortcode: bool,
553 show_git_blame_gutter: bool,
554 show_git_blame_inline: bool,
555 show_git_blame_inline_delay_task: Option<Task<()>>,
556 git_blame_inline_enabled: bool,
557 serialize_dirty_buffers: bool,
558 show_selection_menu: Option<bool>,
559 blame: Option<Model<GitBlame>>,
560 blame_subscription: Option<Subscription>,
561 custom_context_menu: Option<
562 Box<
563 dyn 'static
564 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
565 >,
566 >,
567 last_bounds: Option<Bounds<Pixels>>,
568 expect_bounds_change: Option<Bounds<Pixels>>,
569 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
570 tasks_update_task: Option<Task<()>>,
571 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
572 file_header_size: u8,
573 breadcrumb_header: Option<String>,
574 focused_block: Option<FocusedBlock>,
575}
576
577#[derive(Clone)]
578pub struct EditorSnapshot {
579 pub mode: EditorMode,
580 show_gutter: bool,
581 show_line_numbers: Option<bool>,
582 show_git_diff_gutter: Option<bool>,
583 show_code_actions: Option<bool>,
584 show_runnables: Option<bool>,
585 render_git_blame_gutter: bool,
586 pub display_snapshot: DisplaySnapshot,
587 pub placeholder_text: Option<Arc<str>>,
588 is_focused: bool,
589 scroll_anchor: ScrollAnchor,
590 ongoing_scroll: OngoingScroll,
591 current_line_highlight: CurrentLineHighlight,
592 gutter_hovered: bool,
593}
594
595const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
596
597#[derive(Default, Debug, Clone, Copy)]
598pub struct GutterDimensions {
599 pub left_padding: Pixels,
600 pub right_padding: Pixels,
601 pub width: Pixels,
602 pub margin: Pixels,
603 pub git_blame_entries_width: Option<Pixels>,
604}
605
606impl GutterDimensions {
607 /// The full width of the space taken up by the gutter.
608 pub fn full_width(&self) -> Pixels {
609 self.margin + self.width
610 }
611
612 /// The width of the space reserved for the fold indicators,
613 /// use alongside 'justify_end' and `gutter_width` to
614 /// right align content with the line numbers
615 pub fn fold_area_width(&self) -> Pixels {
616 self.margin + self.right_padding
617 }
618}
619
620#[derive(Debug)]
621pub struct RemoteSelection {
622 pub replica_id: ReplicaId,
623 pub selection: Selection<Anchor>,
624 pub cursor_shape: CursorShape,
625 pub peer_id: PeerId,
626 pub line_mode: bool,
627 pub participant_index: Option<ParticipantIndex>,
628 pub user_name: Option<SharedString>,
629}
630
631#[derive(Clone, Debug)]
632struct SelectionHistoryEntry {
633 selections: Arc<[Selection<Anchor>]>,
634 select_next_state: Option<SelectNextState>,
635 select_prev_state: Option<SelectNextState>,
636 add_selections_state: Option<AddSelectionsState>,
637}
638
639enum SelectionHistoryMode {
640 Normal,
641 Undoing,
642 Redoing,
643}
644
645#[derive(Clone, PartialEq, Eq, Hash)]
646struct HoveredCursor {
647 replica_id: u16,
648 selection_id: usize,
649}
650
651impl Default for SelectionHistoryMode {
652 fn default() -> Self {
653 Self::Normal
654 }
655}
656
657#[derive(Default)]
658struct SelectionHistory {
659 #[allow(clippy::type_complexity)]
660 selections_by_transaction:
661 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
662 mode: SelectionHistoryMode,
663 undo_stack: VecDeque<SelectionHistoryEntry>,
664 redo_stack: VecDeque<SelectionHistoryEntry>,
665}
666
667impl SelectionHistory {
668 fn insert_transaction(
669 &mut self,
670 transaction_id: TransactionId,
671 selections: Arc<[Selection<Anchor>]>,
672 ) {
673 self.selections_by_transaction
674 .insert(transaction_id, (selections, None));
675 }
676
677 #[allow(clippy::type_complexity)]
678 fn transaction(
679 &self,
680 transaction_id: TransactionId,
681 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
682 self.selections_by_transaction.get(&transaction_id)
683 }
684
685 #[allow(clippy::type_complexity)]
686 fn transaction_mut(
687 &mut self,
688 transaction_id: TransactionId,
689 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
690 self.selections_by_transaction.get_mut(&transaction_id)
691 }
692
693 fn push(&mut self, entry: SelectionHistoryEntry) {
694 if !entry.selections.is_empty() {
695 match self.mode {
696 SelectionHistoryMode::Normal => {
697 self.push_undo(entry);
698 self.redo_stack.clear();
699 }
700 SelectionHistoryMode::Undoing => self.push_redo(entry),
701 SelectionHistoryMode::Redoing => self.push_undo(entry),
702 }
703 }
704 }
705
706 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
707 if self
708 .undo_stack
709 .back()
710 .map_or(true, |e| e.selections != entry.selections)
711 {
712 self.undo_stack.push_back(entry);
713 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
714 self.undo_stack.pop_front();
715 }
716 }
717 }
718
719 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
720 if self
721 .redo_stack
722 .back()
723 .map_or(true, |e| e.selections != entry.selections)
724 {
725 self.redo_stack.push_back(entry);
726 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
727 self.redo_stack.pop_front();
728 }
729 }
730 }
731}
732
733struct RowHighlight {
734 index: usize,
735 range: RangeInclusive<Anchor>,
736 color: Option<Hsla>,
737 should_autoscroll: bool,
738}
739
740#[derive(Clone, Debug)]
741struct AddSelectionsState {
742 above: bool,
743 stack: Vec<usize>,
744}
745
746#[derive(Clone)]
747struct SelectNextState {
748 query: AhoCorasick,
749 wordwise: bool,
750 done: bool,
751}
752
753impl std::fmt::Debug for SelectNextState {
754 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
755 f.debug_struct(std::any::type_name::<Self>())
756 .field("wordwise", &self.wordwise)
757 .field("done", &self.done)
758 .finish()
759 }
760}
761
762#[derive(Debug)]
763struct AutocloseRegion {
764 selection_id: usize,
765 range: Range<Anchor>,
766 pair: BracketPair,
767}
768
769#[derive(Debug)]
770struct SnippetState {
771 ranges: Vec<Vec<Range<Anchor>>>,
772 active_index: usize,
773}
774
775#[doc(hidden)]
776pub struct RenameState {
777 pub range: Range<Anchor>,
778 pub old_name: Arc<str>,
779 pub editor: View<Editor>,
780 block_id: CustomBlockId,
781}
782
783struct InvalidationStack<T>(Vec<T>);
784
785struct RegisteredInlineCompletionProvider {
786 provider: Arc<dyn InlineCompletionProviderHandle>,
787 _subscription: Subscription,
788}
789
790enum ContextMenu {
791 Completions(CompletionsMenu),
792 CodeActions(CodeActionsMenu),
793}
794
795impl ContextMenu {
796 fn select_first(
797 &mut self,
798 project: Option<&Model<Project>>,
799 cx: &mut ViewContext<Editor>,
800 ) -> bool {
801 if self.visible() {
802 match self {
803 ContextMenu::Completions(menu) => menu.select_first(project, cx),
804 ContextMenu::CodeActions(menu) => menu.select_first(cx),
805 }
806 true
807 } else {
808 false
809 }
810 }
811
812 fn select_prev(
813 &mut self,
814 project: Option<&Model<Project>>,
815 cx: &mut ViewContext<Editor>,
816 ) -> bool {
817 if self.visible() {
818 match self {
819 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
820 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
821 }
822 true
823 } else {
824 false
825 }
826 }
827
828 fn select_next(
829 &mut self,
830 project: Option<&Model<Project>>,
831 cx: &mut ViewContext<Editor>,
832 ) -> bool {
833 if self.visible() {
834 match self {
835 ContextMenu::Completions(menu) => menu.select_next(project, cx),
836 ContextMenu::CodeActions(menu) => menu.select_next(cx),
837 }
838 true
839 } else {
840 false
841 }
842 }
843
844 fn select_last(
845 &mut self,
846 project: Option<&Model<Project>>,
847 cx: &mut ViewContext<Editor>,
848 ) -> bool {
849 if self.visible() {
850 match self {
851 ContextMenu::Completions(menu) => menu.select_last(project, cx),
852 ContextMenu::CodeActions(menu) => menu.select_last(cx),
853 }
854 true
855 } else {
856 false
857 }
858 }
859
860 fn visible(&self) -> bool {
861 match self {
862 ContextMenu::Completions(menu) => menu.visible(),
863 ContextMenu::CodeActions(menu) => menu.visible(),
864 }
865 }
866
867 fn render(
868 &self,
869 cursor_position: DisplayPoint,
870 style: &EditorStyle,
871 max_height: Pixels,
872 workspace: Option<WeakView<Workspace>>,
873 cx: &mut ViewContext<Editor>,
874 ) -> (ContextMenuOrigin, AnyElement) {
875 match self {
876 ContextMenu::Completions(menu) => (
877 ContextMenuOrigin::EditorPoint(cursor_position),
878 menu.render(style, max_height, workspace, cx),
879 ),
880 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
881 }
882 }
883}
884
885enum ContextMenuOrigin {
886 EditorPoint(DisplayPoint),
887 GutterIndicator(DisplayRow),
888}
889
890#[derive(Clone)]
891struct CompletionsMenu {
892 id: CompletionId,
893 initial_position: Anchor,
894 buffer: Model<Buffer>,
895 completions: Arc<RwLock<Box<[Completion]>>>,
896 match_candidates: Arc<[StringMatchCandidate]>,
897 matches: Arc<[StringMatch]>,
898 selected_item: usize,
899 scroll_handle: UniformListScrollHandle,
900 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
901}
902
903impl CompletionsMenu {
904 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
905 self.selected_item = 0;
906 self.scroll_handle.scroll_to_item(self.selected_item);
907 self.attempt_resolve_selected_completion_documentation(project, cx);
908 cx.notify();
909 }
910
911 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
912 if self.selected_item > 0 {
913 self.selected_item -= 1;
914 } else {
915 self.selected_item = self.matches.len() - 1;
916 }
917 self.scroll_handle.scroll_to_item(self.selected_item);
918 self.attempt_resolve_selected_completion_documentation(project, cx);
919 cx.notify();
920 }
921
922 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
923 if self.selected_item + 1 < self.matches.len() {
924 self.selected_item += 1;
925 } else {
926 self.selected_item = 0;
927 }
928 self.scroll_handle.scroll_to_item(self.selected_item);
929 self.attempt_resolve_selected_completion_documentation(project, cx);
930 cx.notify();
931 }
932
933 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
934 self.selected_item = self.matches.len() - 1;
935 self.scroll_handle.scroll_to_item(self.selected_item);
936 self.attempt_resolve_selected_completion_documentation(project, cx);
937 cx.notify();
938 }
939
940 fn pre_resolve_completion_documentation(
941 buffer: Model<Buffer>,
942 completions: Arc<RwLock<Box<[Completion]>>>,
943 matches: Arc<[StringMatch]>,
944 editor: &Editor,
945 cx: &mut ViewContext<Editor>,
946 ) -> Task<()> {
947 let settings = EditorSettings::get_global(cx);
948 if !settings.show_completion_documentation {
949 return Task::ready(());
950 }
951
952 let Some(provider) = editor.completion_provider.as_ref() else {
953 return Task::ready(());
954 };
955
956 let resolve_task = provider.resolve_completions(
957 buffer,
958 matches.iter().map(|m| m.candidate_id).collect(),
959 completions.clone(),
960 cx,
961 );
962
963 return cx.spawn(move |this, mut cx| async move {
964 if let Some(true) = resolve_task.await.log_err() {
965 this.update(&mut cx, |_, cx| cx.notify()).ok();
966 }
967 });
968 }
969
970 fn attempt_resolve_selected_completion_documentation(
971 &mut self,
972 project: Option<&Model<Project>>,
973 cx: &mut ViewContext<Editor>,
974 ) {
975 let settings = EditorSettings::get_global(cx);
976 if !settings.show_completion_documentation {
977 return;
978 }
979
980 let completion_index = self.matches[self.selected_item].candidate_id;
981 let Some(project) = project else {
982 return;
983 };
984
985 let resolve_task = project.update(cx, |project, cx| {
986 project.resolve_completions(
987 self.buffer.clone(),
988 vec![completion_index],
989 self.completions.clone(),
990 cx,
991 )
992 });
993
994 let delay_ms =
995 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
996 let delay = Duration::from_millis(delay_ms);
997
998 self.selected_completion_documentation_resolve_debounce
999 .lock()
1000 .fire_new(delay, cx, |_, cx| {
1001 cx.spawn(move |this, mut cx| async move {
1002 if let Some(true) = resolve_task.await.log_err() {
1003 this.update(&mut cx, |_, cx| cx.notify()).ok();
1004 }
1005 })
1006 });
1007 }
1008
1009 fn visible(&self) -> bool {
1010 !self.matches.is_empty()
1011 }
1012
1013 fn render(
1014 &self,
1015 style: &EditorStyle,
1016 max_height: Pixels,
1017 workspace: Option<WeakView<Workspace>>,
1018 cx: &mut ViewContext<Editor>,
1019 ) -> AnyElement {
1020 let settings = EditorSettings::get_global(cx);
1021 let show_completion_documentation = settings.show_completion_documentation;
1022
1023 let widest_completion_ix = self
1024 .matches
1025 .iter()
1026 .enumerate()
1027 .max_by_key(|(_, mat)| {
1028 let completions = self.completions.read();
1029 let completion = &completions[mat.candidate_id];
1030 let documentation = &completion.documentation;
1031
1032 let mut len = completion.label.text.chars().count();
1033 if let Some(Documentation::SingleLine(text)) = documentation {
1034 if show_completion_documentation {
1035 len += text.chars().count();
1036 }
1037 }
1038
1039 len
1040 })
1041 .map(|(ix, _)| ix);
1042
1043 let completions = self.completions.clone();
1044 let matches = self.matches.clone();
1045 let selected_item = self.selected_item;
1046 let style = style.clone();
1047
1048 let multiline_docs = if show_completion_documentation {
1049 let mat = &self.matches[selected_item];
1050 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1051 Some(Documentation::MultiLinePlainText(text)) => {
1052 Some(div().child(SharedString::from(text.clone())))
1053 }
1054 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1055 Some(div().child(render_parsed_markdown(
1056 "completions_markdown",
1057 parsed,
1058 &style,
1059 workspace,
1060 cx,
1061 )))
1062 }
1063 _ => None,
1064 };
1065 multiline_docs.map(|div| {
1066 div.id("multiline_docs")
1067 .max_h(max_height)
1068 .flex_1()
1069 .px_1p5()
1070 .py_1()
1071 .min_w(px(260.))
1072 .max_w(px(640.))
1073 .w(px(500.))
1074 .overflow_y_scroll()
1075 .occlude()
1076 })
1077 } else {
1078 None
1079 };
1080
1081 let list = uniform_list(
1082 cx.view().clone(),
1083 "completions",
1084 matches.len(),
1085 move |_editor, range, cx| {
1086 let start_ix = range.start;
1087 let completions_guard = completions.read();
1088
1089 matches[range]
1090 .iter()
1091 .enumerate()
1092 .map(|(ix, mat)| {
1093 let item_ix = start_ix + ix;
1094 let candidate_id = mat.candidate_id;
1095 let completion = &completions_guard[candidate_id];
1096
1097 let documentation = if show_completion_documentation {
1098 &completion.documentation
1099 } else {
1100 &None
1101 };
1102
1103 let highlights = gpui::combine_highlights(
1104 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1105 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1106 |(range, mut highlight)| {
1107 // Ignore font weight for syntax highlighting, as we'll use it
1108 // for fuzzy matches.
1109 highlight.font_weight = None;
1110
1111 if completion.lsp_completion.deprecated.unwrap_or(false) {
1112 highlight.strikethrough = Some(StrikethroughStyle {
1113 thickness: 1.0.into(),
1114 ..Default::default()
1115 });
1116 highlight.color = Some(cx.theme().colors().text_muted);
1117 }
1118
1119 (range, highlight)
1120 },
1121 ),
1122 );
1123 let completion_label = StyledText::new(completion.label.text.clone())
1124 .with_highlights(&style.text, highlights);
1125 let documentation_label =
1126 if let Some(Documentation::SingleLine(text)) = documentation {
1127 if text.trim().is_empty() {
1128 None
1129 } else {
1130 Some(
1131 Label::new(text.clone())
1132 .ml_4()
1133 .size(LabelSize::Small)
1134 .color(Color::Muted),
1135 )
1136 }
1137 } else {
1138 None
1139 };
1140
1141 div().min_w(px(220.)).max_w(px(540.)).child(
1142 ListItem::new(mat.candidate_id)
1143 .inset(true)
1144 .selected(item_ix == selected_item)
1145 .on_click(cx.listener(move |editor, _event, cx| {
1146 cx.stop_propagation();
1147 if let Some(task) = editor.confirm_completion(
1148 &ConfirmCompletion {
1149 item_ix: Some(item_ix),
1150 },
1151 cx,
1152 ) {
1153 task.detach_and_log_err(cx)
1154 }
1155 }))
1156 .child(h_flex().overflow_hidden().child(completion_label))
1157 .end_slot::<Label>(documentation_label),
1158 )
1159 })
1160 .collect()
1161 },
1162 )
1163 .occlude()
1164 .max_h(max_height)
1165 .track_scroll(self.scroll_handle.clone())
1166 .with_width_from_item(widest_completion_ix)
1167 .with_sizing_behavior(ListSizingBehavior::Infer);
1168
1169 Popover::new()
1170 .child(list)
1171 .when_some(multiline_docs, |popover, multiline_docs| {
1172 popover.aside(multiline_docs)
1173 })
1174 .into_any_element()
1175 }
1176
1177 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1178 let mut matches = if let Some(query) = query {
1179 fuzzy::match_strings(
1180 &self.match_candidates,
1181 query,
1182 query.chars().any(|c| c.is_uppercase()),
1183 100,
1184 &Default::default(),
1185 executor,
1186 )
1187 .await
1188 } else {
1189 self.match_candidates
1190 .iter()
1191 .enumerate()
1192 .map(|(candidate_id, candidate)| StringMatch {
1193 candidate_id,
1194 score: Default::default(),
1195 positions: Default::default(),
1196 string: candidate.string.clone(),
1197 })
1198 .collect()
1199 };
1200
1201 // Remove all candidates where the query's start does not match the start of any word in the candidate
1202 if let Some(query) = query {
1203 if let Some(query_start) = query.chars().next() {
1204 matches.retain(|string_match| {
1205 split_words(&string_match.string).any(|word| {
1206 // Check that the first codepoint of the word as lowercase matches the first
1207 // codepoint of the query as lowercase
1208 word.chars()
1209 .flat_map(|codepoint| codepoint.to_lowercase())
1210 .zip(query_start.to_lowercase())
1211 .all(|(word_cp, query_cp)| word_cp == query_cp)
1212 })
1213 });
1214 }
1215 }
1216
1217 let completions = self.completions.read();
1218 matches.sort_unstable_by_key(|mat| {
1219 // We do want to strike a balance here between what the language server tells us
1220 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1221 // `Creat` and there is a local variable called `CreateComponent`).
1222 // So what we do is: we bucket all matches into two buckets
1223 // - Strong matches
1224 // - Weak matches
1225 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1226 // and the Weak matches are the rest.
1227 //
1228 // For the strong matches, we sort by the language-servers score first and for the weak
1229 // matches, we prefer our fuzzy finder first.
1230 //
1231 // The thinking behind that: it's useless to take the sort_text the language-server gives
1232 // us into account when it's obviously a bad match.
1233
1234 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1235 enum MatchScore<'a> {
1236 Strong {
1237 sort_text: Option<&'a str>,
1238 score: Reverse<OrderedFloat<f64>>,
1239 sort_key: (usize, &'a str),
1240 },
1241 Weak {
1242 score: Reverse<OrderedFloat<f64>>,
1243 sort_text: Option<&'a str>,
1244 sort_key: (usize, &'a str),
1245 },
1246 }
1247
1248 let completion = &completions[mat.candidate_id];
1249 let sort_key = completion.sort_key();
1250 let sort_text = completion.lsp_completion.sort_text.as_deref();
1251 let score = Reverse(OrderedFloat(mat.score));
1252
1253 if mat.score >= 0.2 {
1254 MatchScore::Strong {
1255 sort_text,
1256 score,
1257 sort_key,
1258 }
1259 } else {
1260 MatchScore::Weak {
1261 score,
1262 sort_text,
1263 sort_key,
1264 }
1265 }
1266 });
1267
1268 for mat in &mut matches {
1269 let completion = &completions[mat.candidate_id];
1270 mat.string.clone_from(&completion.label.text);
1271 for position in &mut mat.positions {
1272 *position += completion.label.filter_range.start;
1273 }
1274 }
1275 drop(completions);
1276
1277 self.matches = matches.into();
1278 self.selected_item = 0;
1279 }
1280}
1281
1282#[derive(Clone)]
1283struct CodeActionContents {
1284 tasks: Option<Arc<ResolvedTasks>>,
1285 actions: Option<Arc<[CodeAction]>>,
1286}
1287
1288impl CodeActionContents {
1289 fn len(&self) -> usize {
1290 match (&self.tasks, &self.actions) {
1291 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1292 (Some(tasks), None) => tasks.templates.len(),
1293 (None, Some(actions)) => actions.len(),
1294 (None, None) => 0,
1295 }
1296 }
1297
1298 fn is_empty(&self) -> bool {
1299 match (&self.tasks, &self.actions) {
1300 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1301 (Some(tasks), None) => tasks.templates.is_empty(),
1302 (None, Some(actions)) => actions.is_empty(),
1303 (None, None) => true,
1304 }
1305 }
1306
1307 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1308 self.tasks
1309 .iter()
1310 .flat_map(|tasks| {
1311 tasks
1312 .templates
1313 .iter()
1314 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1315 })
1316 .chain(self.actions.iter().flat_map(|actions| {
1317 actions
1318 .iter()
1319 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1320 }))
1321 }
1322 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1323 match (&self.tasks, &self.actions) {
1324 (Some(tasks), Some(actions)) => {
1325 if index < tasks.templates.len() {
1326 tasks
1327 .templates
1328 .get(index)
1329 .cloned()
1330 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1331 } else {
1332 actions
1333 .get(index - tasks.templates.len())
1334 .cloned()
1335 .map(CodeActionsItem::CodeAction)
1336 }
1337 }
1338 (Some(tasks), None) => tasks
1339 .templates
1340 .get(index)
1341 .cloned()
1342 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1343 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1344 (None, None) => None,
1345 }
1346 }
1347}
1348
1349#[allow(clippy::large_enum_variant)]
1350#[derive(Clone)]
1351enum CodeActionsItem {
1352 Task(TaskSourceKind, ResolvedTask),
1353 CodeAction(CodeAction),
1354}
1355
1356impl CodeActionsItem {
1357 fn as_task(&self) -> Option<&ResolvedTask> {
1358 let Self::Task(_, task) = self else {
1359 return None;
1360 };
1361 Some(task)
1362 }
1363 fn as_code_action(&self) -> Option<&CodeAction> {
1364 let Self::CodeAction(action) = self else {
1365 return None;
1366 };
1367 Some(action)
1368 }
1369 fn label(&self) -> String {
1370 match self {
1371 Self::CodeAction(action) => action.lsp_action.title.clone(),
1372 Self::Task(_, task) => task.resolved_label.clone(),
1373 }
1374 }
1375}
1376
1377struct CodeActionsMenu {
1378 actions: CodeActionContents,
1379 buffer: Model<Buffer>,
1380 selected_item: usize,
1381 scroll_handle: UniformListScrollHandle,
1382 deployed_from_indicator: Option<DisplayRow>,
1383}
1384
1385impl CodeActionsMenu {
1386 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1387 self.selected_item = 0;
1388 self.scroll_handle.scroll_to_item(self.selected_item);
1389 cx.notify()
1390 }
1391
1392 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1393 if self.selected_item > 0 {
1394 self.selected_item -= 1;
1395 } else {
1396 self.selected_item = self.actions.len() - 1;
1397 }
1398 self.scroll_handle.scroll_to_item(self.selected_item);
1399 cx.notify();
1400 }
1401
1402 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1403 if self.selected_item + 1 < self.actions.len() {
1404 self.selected_item += 1;
1405 } else {
1406 self.selected_item = 0;
1407 }
1408 self.scroll_handle.scroll_to_item(self.selected_item);
1409 cx.notify();
1410 }
1411
1412 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1413 self.selected_item = self.actions.len() - 1;
1414 self.scroll_handle.scroll_to_item(self.selected_item);
1415 cx.notify()
1416 }
1417
1418 fn visible(&self) -> bool {
1419 !self.actions.is_empty()
1420 }
1421
1422 fn render(
1423 &self,
1424 cursor_position: DisplayPoint,
1425 _style: &EditorStyle,
1426 max_height: Pixels,
1427 cx: &mut ViewContext<Editor>,
1428 ) -> (ContextMenuOrigin, AnyElement) {
1429 let actions = self.actions.clone();
1430 let selected_item = self.selected_item;
1431 let element = uniform_list(
1432 cx.view().clone(),
1433 "code_actions_menu",
1434 self.actions.len(),
1435 move |_this, range, cx| {
1436 actions
1437 .iter()
1438 .skip(range.start)
1439 .take(range.end - range.start)
1440 .enumerate()
1441 .map(|(ix, action)| {
1442 let item_ix = range.start + ix;
1443 let selected = selected_item == item_ix;
1444 let colors = cx.theme().colors();
1445 div()
1446 .px_2()
1447 .text_color(colors.text)
1448 .when(selected, |style| {
1449 style
1450 .bg(colors.element_active)
1451 .text_color(colors.text_accent)
1452 })
1453 .hover(|style| {
1454 style
1455 .bg(colors.element_hover)
1456 .text_color(colors.text_accent)
1457 })
1458 .whitespace_nowrap()
1459 .when_some(action.as_code_action(), |this, action| {
1460 this.on_mouse_down(
1461 MouseButton::Left,
1462 cx.listener(move |editor, _, cx| {
1463 cx.stop_propagation();
1464 if let Some(task) = editor.confirm_code_action(
1465 &ConfirmCodeAction {
1466 item_ix: Some(item_ix),
1467 },
1468 cx,
1469 ) {
1470 task.detach_and_log_err(cx)
1471 }
1472 }),
1473 )
1474 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1475 .child(SharedString::from(action.lsp_action.title.clone()))
1476 })
1477 .when_some(action.as_task(), |this, task| {
1478 this.on_mouse_down(
1479 MouseButton::Left,
1480 cx.listener(move |editor, _, cx| {
1481 cx.stop_propagation();
1482 if let Some(task) = editor.confirm_code_action(
1483 &ConfirmCodeAction {
1484 item_ix: Some(item_ix),
1485 },
1486 cx,
1487 ) {
1488 task.detach_and_log_err(cx)
1489 }
1490 }),
1491 )
1492 .child(SharedString::from(task.resolved_label.clone()))
1493 })
1494 })
1495 .collect()
1496 },
1497 )
1498 .elevation_1(cx)
1499 .px_2()
1500 .py_1()
1501 .max_h(max_height)
1502 .occlude()
1503 .track_scroll(self.scroll_handle.clone())
1504 .with_width_from_item(
1505 self.actions
1506 .iter()
1507 .enumerate()
1508 .max_by_key(|(_, action)| match action {
1509 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1510 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1511 })
1512 .map(|(ix, _)| ix),
1513 )
1514 .with_sizing_behavior(ListSizingBehavior::Infer)
1515 .into_any_element();
1516
1517 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1518 ContextMenuOrigin::GutterIndicator(row)
1519 } else {
1520 ContextMenuOrigin::EditorPoint(cursor_position)
1521 };
1522
1523 (cursor_position, element)
1524 }
1525}
1526
1527#[derive(Debug)]
1528struct ActiveDiagnosticGroup {
1529 primary_range: Range<Anchor>,
1530 primary_message: String,
1531 group_id: usize,
1532 blocks: HashMap<CustomBlockId, Diagnostic>,
1533 is_valid: bool,
1534}
1535
1536#[derive(Serialize, Deserialize, Clone, Debug)]
1537pub struct ClipboardSelection {
1538 pub len: usize,
1539 pub is_entire_line: bool,
1540 pub first_line_indent: u32,
1541}
1542
1543#[derive(Debug)]
1544pub(crate) struct NavigationData {
1545 cursor_anchor: Anchor,
1546 cursor_position: Point,
1547 scroll_anchor: ScrollAnchor,
1548 scroll_top_row: u32,
1549}
1550
1551enum GotoDefinitionKind {
1552 Symbol,
1553 Type,
1554 Implementation,
1555}
1556
1557#[derive(Debug, Clone)]
1558enum InlayHintRefreshReason {
1559 Toggle(bool),
1560 SettingsChange(InlayHintSettings),
1561 NewLinesShown,
1562 BufferEdited(HashSet<Arc<Language>>),
1563 RefreshRequested,
1564 ExcerptsRemoved(Vec<ExcerptId>),
1565}
1566
1567impl InlayHintRefreshReason {
1568 fn description(&self) -> &'static str {
1569 match self {
1570 Self::Toggle(_) => "toggle",
1571 Self::SettingsChange(_) => "settings change",
1572 Self::NewLinesShown => "new lines shown",
1573 Self::BufferEdited(_) => "buffer edited",
1574 Self::RefreshRequested => "refresh requested",
1575 Self::ExcerptsRemoved(_) => "excerpts removed",
1576 }
1577 }
1578}
1579
1580pub(crate) struct FocusedBlock {
1581 id: BlockId,
1582 focus_handle: WeakFocusHandle,
1583}
1584
1585impl Editor {
1586 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1587 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1588 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1589 Self::new(
1590 EditorMode::SingleLine { auto_width: false },
1591 buffer,
1592 None,
1593 false,
1594 cx,
1595 )
1596 }
1597
1598 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1599 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1600 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1601 Self::new(EditorMode::Full, buffer, None, false, cx)
1602 }
1603
1604 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1605 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1606 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1607 Self::new(
1608 EditorMode::SingleLine { auto_width: true },
1609 buffer,
1610 None,
1611 false,
1612 cx,
1613 )
1614 }
1615
1616 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1617 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1618 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1619 Self::new(
1620 EditorMode::AutoHeight { max_lines },
1621 buffer,
1622 None,
1623 false,
1624 cx,
1625 )
1626 }
1627
1628 pub fn for_buffer(
1629 buffer: Model<Buffer>,
1630 project: Option<Model<Project>>,
1631 cx: &mut ViewContext<Self>,
1632 ) -> Self {
1633 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1634 Self::new(EditorMode::Full, buffer, project, false, cx)
1635 }
1636
1637 pub fn for_multibuffer(
1638 buffer: Model<MultiBuffer>,
1639 project: Option<Model<Project>>,
1640 show_excerpt_controls: bool,
1641 cx: &mut ViewContext<Self>,
1642 ) -> Self {
1643 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1644 }
1645
1646 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1647 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1648 let mut clone = Self::new(
1649 self.mode,
1650 self.buffer.clone(),
1651 self.project.clone(),
1652 show_excerpt_controls,
1653 cx,
1654 );
1655 self.display_map.update(cx, |display_map, cx| {
1656 let snapshot = display_map.snapshot(cx);
1657 clone.display_map.update(cx, |display_map, cx| {
1658 display_map.set_state(&snapshot, cx);
1659 });
1660 });
1661 clone.selections.clone_state(&self.selections);
1662 clone.scroll_manager.clone_state(&self.scroll_manager);
1663 clone.searchable = self.searchable;
1664 clone
1665 }
1666
1667 pub fn new(
1668 mode: EditorMode,
1669 buffer: Model<MultiBuffer>,
1670 project: Option<Model<Project>>,
1671 show_excerpt_controls: bool,
1672 cx: &mut ViewContext<Self>,
1673 ) -> Self {
1674 let style = cx.text_style();
1675 let font_size = style.font_size.to_pixels(cx.rem_size());
1676 let editor = cx.view().downgrade();
1677 let fold_placeholder = FoldPlaceholder {
1678 constrain_width: true,
1679 render: Arc::new(move |fold_id, fold_range, cx| {
1680 let editor = editor.clone();
1681 div()
1682 .id(fold_id)
1683 .bg(cx.theme().colors().ghost_element_background)
1684 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1685 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1686 .rounded_sm()
1687 .size_full()
1688 .cursor_pointer()
1689 .child("⋯")
1690 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1691 .on_click(move |_, cx| {
1692 editor
1693 .update(cx, |editor, cx| {
1694 editor.unfold_ranges(
1695 [fold_range.start..fold_range.end],
1696 true,
1697 false,
1698 cx,
1699 );
1700 cx.stop_propagation();
1701 })
1702 .ok();
1703 })
1704 .into_any()
1705 }),
1706 merge_adjacent: true,
1707 };
1708 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1709 let display_map = cx.new_model(|cx| {
1710 DisplayMap::new(
1711 buffer.clone(),
1712 style.font(),
1713 font_size,
1714 None,
1715 show_excerpt_controls,
1716 file_header_size,
1717 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1718 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1719 fold_placeholder,
1720 cx,
1721 )
1722 });
1723
1724 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1725
1726 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1727
1728 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1729 .then(|| language_settings::SoftWrap::PreferLine);
1730
1731 let mut project_subscriptions = Vec::new();
1732 if mode == EditorMode::Full {
1733 if let Some(project) = project.as_ref() {
1734 if buffer.read(cx).is_singleton() {
1735 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1736 cx.emit(EditorEvent::TitleChanged);
1737 }));
1738 }
1739 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1740 if let project::Event::RefreshInlayHints = event {
1741 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1742 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1743 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1744 let focus_handle = editor.focus_handle(cx);
1745 if focus_handle.is_focused(cx) {
1746 let snapshot = buffer.read(cx).snapshot();
1747 for (range, snippet) in snippet_edits {
1748 let editor_range =
1749 language::range_from_lsp(*range).to_offset(&snapshot);
1750 editor
1751 .insert_snippet(&[editor_range], snippet.clone(), cx)
1752 .ok();
1753 }
1754 }
1755 }
1756 }
1757 }));
1758 let task_inventory = project.read(cx).task_inventory().clone();
1759 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1760 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1761 }));
1762 }
1763 }
1764
1765 let inlay_hint_settings = inlay_hint_settings(
1766 selections.newest_anchor().head(),
1767 &buffer.read(cx).snapshot(cx),
1768 cx,
1769 );
1770 let focus_handle = cx.focus_handle();
1771 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1772 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1773 .detach();
1774 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1775 .detach();
1776 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1777
1778 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1779 Some(false)
1780 } else {
1781 None
1782 };
1783
1784 let mut this = Self {
1785 focus_handle,
1786 show_cursor_when_unfocused: false,
1787 last_focused_descendant: None,
1788 buffer: buffer.clone(),
1789 display_map: display_map.clone(),
1790 selections,
1791 scroll_manager: ScrollManager::new(cx),
1792 columnar_selection_tail: None,
1793 add_selections_state: None,
1794 select_next_state: None,
1795 select_prev_state: None,
1796 selection_history: Default::default(),
1797 autoclose_regions: Default::default(),
1798 snippet_stack: Default::default(),
1799 select_larger_syntax_node_stack: Vec::new(),
1800 ime_transaction: Default::default(),
1801 active_diagnostics: None,
1802 soft_wrap_mode_override,
1803 completion_provider: project.clone().map(|project| Box::new(project) as _),
1804 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1805 project,
1806 blink_manager: blink_manager.clone(),
1807 show_local_selections: true,
1808 mode,
1809 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1810 show_gutter: mode == EditorMode::Full,
1811 show_line_numbers: None,
1812 show_git_diff_gutter: None,
1813 show_code_actions: None,
1814 show_runnables: None,
1815 show_wrap_guides: None,
1816 redact_all: false,
1817 show_indent_guides,
1818 placeholder_text: None,
1819 highlight_order: 0,
1820 highlighted_rows: HashMap::default(),
1821 background_highlights: Default::default(),
1822 gutter_highlights: TreeMap::default(),
1823 scrollbar_marker_state: ScrollbarMarkerState::default(),
1824 active_indent_guides_state: ActiveIndentGuidesState::default(),
1825 nav_history: None,
1826 context_menu: RwLock::new(None),
1827 mouse_context_menu: None,
1828 completion_tasks: Default::default(),
1829 signature_help_state: SignatureHelpState::default(),
1830 auto_signature_help: None,
1831 find_all_references_task_sources: Vec::new(),
1832 next_completion_id: 0,
1833 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1834 next_inlay_id: 0,
1835 available_code_actions: Default::default(),
1836 code_actions_task: Default::default(),
1837 document_highlights_task: Default::default(),
1838 linked_editing_range_task: Default::default(),
1839 pending_rename: Default::default(),
1840 searchable: true,
1841 cursor_shape: Default::default(),
1842 current_line_highlight: None,
1843 autoindent_mode: Some(AutoindentMode::EachLine),
1844 collapse_matches: false,
1845 workspace: None,
1846 keymap_context_layers: Default::default(),
1847 input_enabled: true,
1848 use_modal_editing: mode == EditorMode::Full,
1849 read_only: false,
1850 use_autoclose: true,
1851 use_auto_surround: true,
1852 auto_replace_emoji_shortcode: false,
1853 leader_peer_id: None,
1854 remote_id: None,
1855 hover_state: Default::default(),
1856 hovered_link_state: Default::default(),
1857 inline_completion_provider: None,
1858 active_inline_completion: None,
1859 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1860 expanded_hunks: ExpandedHunks::default(),
1861 gutter_hovered: false,
1862 pixel_position_of_newest_cursor: None,
1863 last_bounds: None,
1864 expect_bounds_change: None,
1865 gutter_dimensions: GutterDimensions::default(),
1866 style: None,
1867 show_cursor_names: false,
1868 hovered_cursors: Default::default(),
1869 next_editor_action_id: EditorActionId::default(),
1870 editor_actions: Rc::default(),
1871 vim_replace_map: Default::default(),
1872 show_inline_completions: mode == EditorMode::Full,
1873 custom_context_menu: None,
1874 show_git_blame_gutter: false,
1875 show_git_blame_inline: false,
1876 show_selection_menu: None,
1877 show_git_blame_inline_delay_task: None,
1878 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1879 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1880 .session
1881 .restore_unsaved_buffers,
1882 blame: None,
1883 blame_subscription: None,
1884 file_header_size,
1885 tasks: Default::default(),
1886 _subscriptions: vec![
1887 cx.observe(&buffer, Self::on_buffer_changed),
1888 cx.subscribe(&buffer, Self::on_buffer_event),
1889 cx.observe(&display_map, Self::on_display_map_changed),
1890 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1891 cx.observe_global::<SettingsStore>(Self::settings_changed),
1892 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1893 cx.observe_window_activation(|editor, cx| {
1894 let active = cx.is_window_active();
1895 editor.blink_manager.update(cx, |blink_manager, cx| {
1896 if active {
1897 blink_manager.enable(cx);
1898 } else {
1899 blink_manager.show_cursor(cx);
1900 blink_manager.disable(cx);
1901 }
1902 });
1903 }),
1904 ],
1905 tasks_update_task: None,
1906 linked_edit_ranges: Default::default(),
1907 previous_search_ranges: None,
1908 breadcrumb_header: None,
1909 focused_block: None,
1910 };
1911 this.tasks_update_task = Some(this.refresh_runnables(cx));
1912 this._subscriptions.extend(project_subscriptions);
1913
1914 this.end_selection(cx);
1915 this.scroll_manager.show_scrollbar(cx);
1916
1917 if mode == EditorMode::Full {
1918 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1919 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1920
1921 if this.git_blame_inline_enabled {
1922 this.git_blame_inline_enabled = true;
1923 this.start_git_blame_inline(false, cx);
1924 }
1925 }
1926
1927 this.report_editor_event("open", None, cx);
1928 this
1929 }
1930
1931 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1932 self.mouse_context_menu
1933 .as_ref()
1934 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1935 }
1936
1937 fn key_context(&self, cx: &AppContext) -> KeyContext {
1938 let mut key_context = KeyContext::new_with_defaults();
1939 key_context.add("Editor");
1940 let mode = match self.mode {
1941 EditorMode::SingleLine { .. } => "single_line",
1942 EditorMode::AutoHeight { .. } => "auto_height",
1943 EditorMode::Full => "full",
1944 };
1945
1946 if EditorSettings::jupyter_enabled(cx) {
1947 key_context.add("jupyter");
1948 }
1949
1950 key_context.set("mode", mode);
1951 if self.pending_rename.is_some() {
1952 key_context.add("renaming");
1953 }
1954 if self.context_menu_visible() {
1955 match self.context_menu.read().as_ref() {
1956 Some(ContextMenu::Completions(_)) => {
1957 key_context.add("menu");
1958 key_context.add("showing_completions")
1959 }
1960 Some(ContextMenu::CodeActions(_)) => {
1961 key_context.add("menu");
1962 key_context.add("showing_code_actions")
1963 }
1964 None => {}
1965 }
1966 }
1967
1968 for layer in self.keymap_context_layers.values() {
1969 key_context.extend(layer);
1970 }
1971
1972 if let Some(extension) = self
1973 .buffer
1974 .read(cx)
1975 .as_singleton()
1976 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1977 {
1978 key_context.set("extension", extension.to_string());
1979 }
1980
1981 if self.has_active_inline_completion(cx) {
1982 key_context.add("copilot_suggestion");
1983 key_context.add("inline_completion");
1984 }
1985
1986 key_context
1987 }
1988
1989 pub fn new_file(
1990 workspace: &mut Workspace,
1991 _: &workspace::NewFile,
1992 cx: &mut ViewContext<Workspace>,
1993 ) {
1994 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1995 "Failed to create buffer",
1996 cx,
1997 |e, _| match e.error_code() {
1998 ErrorCode::RemoteUpgradeRequired => Some(format!(
1999 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2000 e.error_tag("required").unwrap_or("the latest version")
2001 )),
2002 _ => None,
2003 },
2004 );
2005 }
2006
2007 pub fn new_in_workspace(
2008 workspace: &mut Workspace,
2009 cx: &mut ViewContext<Workspace>,
2010 ) -> Task<Result<View<Editor>>> {
2011 let project = workspace.project().clone();
2012 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2013
2014 cx.spawn(|workspace, mut cx| async move {
2015 let buffer = create.await?;
2016 workspace.update(&mut cx, |workspace, cx| {
2017 let editor =
2018 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2019 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2020 editor
2021 })
2022 })
2023 }
2024
2025 pub fn new_file_in_direction(
2026 workspace: &mut Workspace,
2027 action: &workspace::NewFileInDirection,
2028 cx: &mut ViewContext<Workspace>,
2029 ) {
2030 let project = workspace.project().clone();
2031 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2032 let direction = action.0;
2033
2034 cx.spawn(|workspace, mut cx| async move {
2035 let buffer = create.await?;
2036 workspace.update(&mut cx, move |workspace, cx| {
2037 workspace.split_item(
2038 direction,
2039 Box::new(
2040 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2041 ),
2042 cx,
2043 )
2044 })?;
2045 anyhow::Ok(())
2046 })
2047 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2048 ErrorCode::RemoteUpgradeRequired => Some(format!(
2049 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2050 e.error_tag("required").unwrap_or("the latest version")
2051 )),
2052 _ => None,
2053 });
2054 }
2055
2056 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2057 self.buffer.read(cx).replica_id()
2058 }
2059
2060 pub fn leader_peer_id(&self) -> Option<PeerId> {
2061 self.leader_peer_id
2062 }
2063
2064 pub fn buffer(&self) -> &Model<MultiBuffer> {
2065 &self.buffer
2066 }
2067
2068 pub fn workspace(&self) -> Option<View<Workspace>> {
2069 self.workspace.as_ref()?.0.upgrade()
2070 }
2071
2072 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2073 self.buffer().read(cx).title(cx)
2074 }
2075
2076 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2077 EditorSnapshot {
2078 mode: self.mode,
2079 show_gutter: self.show_gutter,
2080 show_line_numbers: self.show_line_numbers,
2081 show_git_diff_gutter: self.show_git_diff_gutter,
2082 show_code_actions: self.show_code_actions,
2083 show_runnables: self.show_runnables,
2084 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2085 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2086 scroll_anchor: self.scroll_manager.anchor(),
2087 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2088 placeholder_text: self.placeholder_text.clone(),
2089 is_focused: self.focus_handle.is_focused(cx),
2090 current_line_highlight: self
2091 .current_line_highlight
2092 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2093 gutter_hovered: self.gutter_hovered,
2094 }
2095 }
2096
2097 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2098 self.buffer.read(cx).language_at(point, cx)
2099 }
2100
2101 pub fn file_at<T: ToOffset>(
2102 &self,
2103 point: T,
2104 cx: &AppContext,
2105 ) -> Option<Arc<dyn language::File>> {
2106 self.buffer.read(cx).read(cx).file_at(point).cloned()
2107 }
2108
2109 pub fn active_excerpt(
2110 &self,
2111 cx: &AppContext,
2112 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2113 self.buffer
2114 .read(cx)
2115 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2116 }
2117
2118 pub fn mode(&self) -> EditorMode {
2119 self.mode
2120 }
2121
2122 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2123 self.collaboration_hub.as_deref()
2124 }
2125
2126 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2127 self.collaboration_hub = Some(hub);
2128 }
2129
2130 pub fn set_custom_context_menu(
2131 &mut self,
2132 f: impl 'static
2133 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2134 ) {
2135 self.custom_context_menu = Some(Box::new(f))
2136 }
2137
2138 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2139 self.completion_provider = Some(provider);
2140 }
2141
2142 pub fn set_inline_completion_provider<T>(
2143 &mut self,
2144 provider: Option<Model<T>>,
2145 cx: &mut ViewContext<Self>,
2146 ) where
2147 T: InlineCompletionProvider,
2148 {
2149 self.inline_completion_provider =
2150 provider.map(|provider| RegisteredInlineCompletionProvider {
2151 _subscription: cx.observe(&provider, |this, _, cx| {
2152 if this.focus_handle.is_focused(cx) {
2153 this.update_visible_inline_completion(cx);
2154 }
2155 }),
2156 provider: Arc::new(provider),
2157 });
2158 self.refresh_inline_completion(false, cx);
2159 }
2160
2161 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2162 self.placeholder_text.as_deref()
2163 }
2164
2165 pub fn set_placeholder_text(
2166 &mut self,
2167 placeholder_text: impl Into<Arc<str>>,
2168 cx: &mut ViewContext<Self>,
2169 ) {
2170 let placeholder_text = Some(placeholder_text.into());
2171 if self.placeholder_text != placeholder_text {
2172 self.placeholder_text = placeholder_text;
2173 cx.notify();
2174 }
2175 }
2176
2177 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2178 self.cursor_shape = cursor_shape;
2179
2180 // Disrupt blink for immediate user feedback that the cursor shape has changed
2181 self.blink_manager.update(cx, BlinkManager::show_cursor);
2182
2183 cx.notify();
2184 }
2185
2186 pub fn set_current_line_highlight(
2187 &mut self,
2188 current_line_highlight: Option<CurrentLineHighlight>,
2189 ) {
2190 self.current_line_highlight = current_line_highlight;
2191 }
2192
2193 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2194 self.collapse_matches = collapse_matches;
2195 }
2196
2197 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2198 if self.collapse_matches {
2199 return range.start..range.start;
2200 }
2201 range.clone()
2202 }
2203
2204 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2205 if self.display_map.read(cx).clip_at_line_ends != clip {
2206 self.display_map
2207 .update(cx, |map, _| map.clip_at_line_ends = clip);
2208 }
2209 }
2210
2211 pub fn set_keymap_context_layer<Tag: 'static>(
2212 &mut self,
2213 context: KeyContext,
2214 cx: &mut ViewContext<Self>,
2215 ) {
2216 self.keymap_context_layers
2217 .insert(TypeId::of::<Tag>(), context);
2218 cx.notify();
2219 }
2220
2221 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2222 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2223 cx.notify();
2224 }
2225
2226 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2227 self.input_enabled = input_enabled;
2228 }
2229
2230 pub fn set_autoindent(&mut self, autoindent: bool) {
2231 if autoindent {
2232 self.autoindent_mode = Some(AutoindentMode::EachLine);
2233 } else {
2234 self.autoindent_mode = None;
2235 }
2236 }
2237
2238 pub fn read_only(&self, cx: &AppContext) -> bool {
2239 self.read_only || self.buffer.read(cx).read_only()
2240 }
2241
2242 pub fn set_read_only(&mut self, read_only: bool) {
2243 self.read_only = read_only;
2244 }
2245
2246 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2247 self.use_autoclose = autoclose;
2248 }
2249
2250 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2251 self.use_auto_surround = auto_surround;
2252 }
2253
2254 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2255 self.auto_replace_emoji_shortcode = auto_replace;
2256 }
2257
2258 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2259 self.show_inline_completions = show_inline_completions;
2260 }
2261
2262 pub fn set_use_modal_editing(&mut self, to: bool) {
2263 self.use_modal_editing = to;
2264 }
2265
2266 pub fn use_modal_editing(&self) -> bool {
2267 self.use_modal_editing
2268 }
2269
2270 fn selections_did_change(
2271 &mut self,
2272 local: bool,
2273 old_cursor_position: &Anchor,
2274 show_completions: bool,
2275 cx: &mut ViewContext<Self>,
2276 ) {
2277 // Copy selections to primary selection buffer
2278 #[cfg(target_os = "linux")]
2279 if local {
2280 let selections = self.selections.all::<usize>(cx);
2281 let buffer_handle = self.buffer.read(cx).read(cx);
2282
2283 let mut text = String::new();
2284 for (index, selection) in selections.iter().enumerate() {
2285 let text_for_selection = buffer_handle
2286 .text_for_range(selection.start..selection.end)
2287 .collect::<String>();
2288
2289 text.push_str(&text_for_selection);
2290 if index != selections.len() - 1 {
2291 text.push('\n');
2292 }
2293 }
2294
2295 if !text.is_empty() {
2296 cx.write_to_primary(ClipboardItem::new(text));
2297 }
2298 }
2299
2300 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2301 self.buffer.update(cx, |buffer, cx| {
2302 buffer.set_active_selections(
2303 &self.selections.disjoint_anchors(),
2304 self.selections.line_mode,
2305 self.cursor_shape,
2306 cx,
2307 )
2308 });
2309 }
2310 let display_map = self
2311 .display_map
2312 .update(cx, |display_map, cx| display_map.snapshot(cx));
2313 let buffer = &display_map.buffer_snapshot;
2314 self.add_selections_state = None;
2315 self.select_next_state = None;
2316 self.select_prev_state = None;
2317 self.select_larger_syntax_node_stack.clear();
2318 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2319 self.snippet_stack
2320 .invalidate(&self.selections.disjoint_anchors(), buffer);
2321 self.take_rename(false, cx);
2322
2323 let new_cursor_position = self.selections.newest_anchor().head();
2324
2325 self.push_to_nav_history(
2326 *old_cursor_position,
2327 Some(new_cursor_position.to_point(buffer)),
2328 cx,
2329 );
2330
2331 if local {
2332 let new_cursor_position = self.selections.newest_anchor().head();
2333 let mut context_menu = self.context_menu.write();
2334 let completion_menu = match context_menu.as_ref() {
2335 Some(ContextMenu::Completions(menu)) => Some(menu),
2336
2337 _ => {
2338 *context_menu = None;
2339 None
2340 }
2341 };
2342
2343 if let Some(completion_menu) = completion_menu {
2344 let cursor_position = new_cursor_position.to_offset(buffer);
2345 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2346 if kind == Some(CharKind::Word)
2347 && word_range.to_inclusive().contains(&cursor_position)
2348 {
2349 let mut completion_menu = completion_menu.clone();
2350 drop(context_menu);
2351
2352 let query = Self::completion_query(buffer, cursor_position);
2353 cx.spawn(move |this, mut cx| async move {
2354 completion_menu
2355 .filter(query.as_deref(), cx.background_executor().clone())
2356 .await;
2357
2358 this.update(&mut cx, |this, cx| {
2359 let mut context_menu = this.context_menu.write();
2360 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2361 return;
2362 };
2363
2364 if menu.id > completion_menu.id {
2365 return;
2366 }
2367
2368 *context_menu = Some(ContextMenu::Completions(completion_menu));
2369 drop(context_menu);
2370 cx.notify();
2371 })
2372 })
2373 .detach();
2374
2375 if show_completions {
2376 self.show_completions(&ShowCompletions { trigger: None }, cx);
2377 }
2378 } else {
2379 drop(context_menu);
2380 self.hide_context_menu(cx);
2381 }
2382 } else {
2383 drop(context_menu);
2384 }
2385
2386 hide_hover(self, cx);
2387
2388 if old_cursor_position.to_display_point(&display_map).row()
2389 != new_cursor_position.to_display_point(&display_map).row()
2390 {
2391 self.available_code_actions.take();
2392 }
2393 self.refresh_code_actions(cx);
2394 self.refresh_document_highlights(cx);
2395 refresh_matching_bracket_highlights(self, cx);
2396 self.discard_inline_completion(false, cx);
2397 linked_editing_ranges::refresh_linked_ranges(self, cx);
2398 if self.git_blame_inline_enabled {
2399 self.start_inline_blame_timer(cx);
2400 }
2401 }
2402
2403 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2404 cx.emit(EditorEvent::SelectionsChanged { local });
2405
2406 if self.selections.disjoint_anchors().len() == 1 {
2407 cx.emit(SearchEvent::ActiveMatchChanged)
2408 }
2409 cx.notify();
2410 }
2411
2412 pub fn change_selections<R>(
2413 &mut self,
2414 autoscroll: Option<Autoscroll>,
2415 cx: &mut ViewContext<Self>,
2416 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2417 ) -> R {
2418 self.change_selections_inner(autoscroll, true, cx, change)
2419 }
2420
2421 pub fn change_selections_inner<R>(
2422 &mut self,
2423 autoscroll: Option<Autoscroll>,
2424 request_completions: bool,
2425 cx: &mut ViewContext<Self>,
2426 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2427 ) -> R {
2428 let old_cursor_position = self.selections.newest_anchor().head();
2429 self.push_to_selection_history();
2430
2431 let (changed, result) = self.selections.change_with(cx, change);
2432
2433 if changed {
2434 if let Some(autoscroll) = autoscroll {
2435 self.request_autoscroll(autoscroll, cx);
2436 }
2437 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2438
2439 if self.should_open_signature_help_automatically(
2440 &old_cursor_position,
2441 self.signature_help_state.backspace_pressed(),
2442 cx,
2443 ) {
2444 self.show_signature_help(&ShowSignatureHelp, cx);
2445 }
2446 self.signature_help_state.set_backspace_pressed(false);
2447 }
2448
2449 result
2450 }
2451
2452 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2453 where
2454 I: IntoIterator<Item = (Range<S>, T)>,
2455 S: ToOffset,
2456 T: Into<Arc<str>>,
2457 {
2458 if self.read_only(cx) {
2459 return;
2460 }
2461
2462 self.buffer
2463 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2464 }
2465
2466 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2467 where
2468 I: IntoIterator<Item = (Range<S>, T)>,
2469 S: ToOffset,
2470 T: Into<Arc<str>>,
2471 {
2472 if self.read_only(cx) {
2473 return;
2474 }
2475
2476 self.buffer.update(cx, |buffer, cx| {
2477 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2478 });
2479 }
2480
2481 pub fn edit_with_block_indent<I, S, T>(
2482 &mut self,
2483 edits: I,
2484 original_indent_columns: Vec<u32>,
2485 cx: &mut ViewContext<Self>,
2486 ) where
2487 I: IntoIterator<Item = (Range<S>, T)>,
2488 S: ToOffset,
2489 T: Into<Arc<str>>,
2490 {
2491 if self.read_only(cx) {
2492 return;
2493 }
2494
2495 self.buffer.update(cx, |buffer, cx| {
2496 buffer.edit(
2497 edits,
2498 Some(AutoindentMode::Block {
2499 original_indent_columns,
2500 }),
2501 cx,
2502 )
2503 });
2504 }
2505
2506 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2507 self.hide_context_menu(cx);
2508
2509 match phase {
2510 SelectPhase::Begin {
2511 position,
2512 add,
2513 click_count,
2514 } => self.begin_selection(position, add, click_count, cx),
2515 SelectPhase::BeginColumnar {
2516 position,
2517 goal_column,
2518 reset,
2519 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2520 SelectPhase::Extend {
2521 position,
2522 click_count,
2523 } => self.extend_selection(position, click_count, cx),
2524 SelectPhase::Update {
2525 position,
2526 goal_column,
2527 scroll_delta,
2528 } => self.update_selection(position, goal_column, scroll_delta, cx),
2529 SelectPhase::End => self.end_selection(cx),
2530 }
2531 }
2532
2533 fn extend_selection(
2534 &mut self,
2535 position: DisplayPoint,
2536 click_count: usize,
2537 cx: &mut ViewContext<Self>,
2538 ) {
2539 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2540 let tail = self.selections.newest::<usize>(cx).tail();
2541 self.begin_selection(position, false, click_count, cx);
2542
2543 let position = position.to_offset(&display_map, Bias::Left);
2544 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2545
2546 let mut pending_selection = self
2547 .selections
2548 .pending_anchor()
2549 .expect("extend_selection not called with pending selection");
2550 if position >= tail {
2551 pending_selection.start = tail_anchor;
2552 } else {
2553 pending_selection.end = tail_anchor;
2554 pending_selection.reversed = true;
2555 }
2556
2557 let mut pending_mode = self.selections.pending_mode().unwrap();
2558 match &mut pending_mode {
2559 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2560 _ => {}
2561 }
2562
2563 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2564 s.set_pending(pending_selection, pending_mode)
2565 });
2566 }
2567
2568 fn begin_selection(
2569 &mut self,
2570 position: DisplayPoint,
2571 add: bool,
2572 click_count: usize,
2573 cx: &mut ViewContext<Self>,
2574 ) {
2575 if !self.focus_handle.is_focused(cx) {
2576 self.last_focused_descendant = None;
2577 cx.focus(&self.focus_handle);
2578 }
2579
2580 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2581 let buffer = &display_map.buffer_snapshot;
2582 let newest_selection = self.selections.newest_anchor().clone();
2583 let position = display_map.clip_point(position, Bias::Left);
2584
2585 let start;
2586 let end;
2587 let mode;
2588 let auto_scroll;
2589 match click_count {
2590 1 => {
2591 start = buffer.anchor_before(position.to_point(&display_map));
2592 end = start;
2593 mode = SelectMode::Character;
2594 auto_scroll = true;
2595 }
2596 2 => {
2597 let range = movement::surrounding_word(&display_map, position);
2598 start = buffer.anchor_before(range.start.to_point(&display_map));
2599 end = buffer.anchor_before(range.end.to_point(&display_map));
2600 mode = SelectMode::Word(start..end);
2601 auto_scroll = true;
2602 }
2603 3 => {
2604 let position = display_map
2605 .clip_point(position, Bias::Left)
2606 .to_point(&display_map);
2607 let line_start = display_map.prev_line_boundary(position).0;
2608 let next_line_start = buffer.clip_point(
2609 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2610 Bias::Left,
2611 );
2612 start = buffer.anchor_before(line_start);
2613 end = buffer.anchor_before(next_line_start);
2614 mode = SelectMode::Line(start..end);
2615 auto_scroll = true;
2616 }
2617 _ => {
2618 start = buffer.anchor_before(0);
2619 end = buffer.anchor_before(buffer.len());
2620 mode = SelectMode::All;
2621 auto_scroll = false;
2622 }
2623 }
2624
2625 let point_to_delete: Option<usize> = {
2626 let selected_points: Vec<Selection<Point>> =
2627 self.selections.disjoint_in_range(start..end, cx);
2628
2629 if !add || click_count > 1 {
2630 None
2631 } else if selected_points.len() > 0 {
2632 Some(selected_points[0].id)
2633 } else {
2634 let clicked_point_already_selected =
2635 self.selections.disjoint.iter().find(|selection| {
2636 selection.start.to_point(buffer) == start.to_point(buffer)
2637 || selection.end.to_point(buffer) == end.to_point(buffer)
2638 });
2639
2640 if let Some(selection) = clicked_point_already_selected {
2641 Some(selection.id)
2642 } else {
2643 None
2644 }
2645 }
2646 };
2647
2648 let selections_count = self.selections.count();
2649
2650 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2651 if let Some(point_to_delete) = point_to_delete {
2652 s.delete(point_to_delete);
2653
2654 if selections_count == 1 {
2655 s.set_pending_anchor_range(start..end, mode);
2656 }
2657 } else {
2658 if !add {
2659 s.clear_disjoint();
2660 } else if click_count > 1 {
2661 s.delete(newest_selection.id)
2662 }
2663
2664 s.set_pending_anchor_range(start..end, mode);
2665 }
2666 });
2667 }
2668
2669 fn begin_columnar_selection(
2670 &mut self,
2671 position: DisplayPoint,
2672 goal_column: u32,
2673 reset: bool,
2674 cx: &mut ViewContext<Self>,
2675 ) {
2676 if !self.focus_handle.is_focused(cx) {
2677 self.last_focused_descendant = None;
2678 cx.focus(&self.focus_handle);
2679 }
2680
2681 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2682
2683 if reset {
2684 let pointer_position = display_map
2685 .buffer_snapshot
2686 .anchor_before(position.to_point(&display_map));
2687
2688 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2689 s.clear_disjoint();
2690 s.set_pending_anchor_range(
2691 pointer_position..pointer_position,
2692 SelectMode::Character,
2693 );
2694 });
2695 }
2696
2697 let tail = self.selections.newest::<Point>(cx).tail();
2698 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2699
2700 if !reset {
2701 self.select_columns(
2702 tail.to_display_point(&display_map),
2703 position,
2704 goal_column,
2705 &display_map,
2706 cx,
2707 );
2708 }
2709 }
2710
2711 fn update_selection(
2712 &mut self,
2713 position: DisplayPoint,
2714 goal_column: u32,
2715 scroll_delta: gpui::Point<f32>,
2716 cx: &mut ViewContext<Self>,
2717 ) {
2718 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2719
2720 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2721 let tail = tail.to_display_point(&display_map);
2722 self.select_columns(tail, position, goal_column, &display_map, cx);
2723 } else if let Some(mut pending) = self.selections.pending_anchor() {
2724 let buffer = self.buffer.read(cx).snapshot(cx);
2725 let head;
2726 let tail;
2727 let mode = self.selections.pending_mode().unwrap();
2728 match &mode {
2729 SelectMode::Character => {
2730 head = position.to_point(&display_map);
2731 tail = pending.tail().to_point(&buffer);
2732 }
2733 SelectMode::Word(original_range) => {
2734 let original_display_range = original_range.start.to_display_point(&display_map)
2735 ..original_range.end.to_display_point(&display_map);
2736 let original_buffer_range = original_display_range.start.to_point(&display_map)
2737 ..original_display_range.end.to_point(&display_map);
2738 if movement::is_inside_word(&display_map, position)
2739 || original_display_range.contains(&position)
2740 {
2741 let word_range = movement::surrounding_word(&display_map, position);
2742 if word_range.start < original_display_range.start {
2743 head = word_range.start.to_point(&display_map);
2744 } else {
2745 head = word_range.end.to_point(&display_map);
2746 }
2747 } else {
2748 head = position.to_point(&display_map);
2749 }
2750
2751 if head <= original_buffer_range.start {
2752 tail = original_buffer_range.end;
2753 } else {
2754 tail = original_buffer_range.start;
2755 }
2756 }
2757 SelectMode::Line(original_range) => {
2758 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2759
2760 let position = display_map
2761 .clip_point(position, Bias::Left)
2762 .to_point(&display_map);
2763 let line_start = display_map.prev_line_boundary(position).0;
2764 let next_line_start = buffer.clip_point(
2765 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2766 Bias::Left,
2767 );
2768
2769 if line_start < original_range.start {
2770 head = line_start
2771 } else {
2772 head = next_line_start
2773 }
2774
2775 if head <= original_range.start {
2776 tail = original_range.end;
2777 } else {
2778 tail = original_range.start;
2779 }
2780 }
2781 SelectMode::All => {
2782 return;
2783 }
2784 };
2785
2786 if head < tail {
2787 pending.start = buffer.anchor_before(head);
2788 pending.end = buffer.anchor_before(tail);
2789 pending.reversed = true;
2790 } else {
2791 pending.start = buffer.anchor_before(tail);
2792 pending.end = buffer.anchor_before(head);
2793 pending.reversed = false;
2794 }
2795
2796 self.change_selections(None, cx, |s| {
2797 s.set_pending(pending, mode);
2798 });
2799 } else {
2800 log::error!("update_selection dispatched with no pending selection");
2801 return;
2802 }
2803
2804 self.apply_scroll_delta(scroll_delta, cx);
2805 cx.notify();
2806 }
2807
2808 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2809 self.columnar_selection_tail.take();
2810 if self.selections.pending_anchor().is_some() {
2811 let selections = self.selections.all::<usize>(cx);
2812 self.change_selections(None, cx, |s| {
2813 s.select(selections);
2814 s.clear_pending();
2815 });
2816 }
2817 }
2818
2819 fn select_columns(
2820 &mut self,
2821 tail: DisplayPoint,
2822 head: DisplayPoint,
2823 goal_column: u32,
2824 display_map: &DisplaySnapshot,
2825 cx: &mut ViewContext<Self>,
2826 ) {
2827 let start_row = cmp::min(tail.row(), head.row());
2828 let end_row = cmp::max(tail.row(), head.row());
2829 let start_column = cmp::min(tail.column(), goal_column);
2830 let end_column = cmp::max(tail.column(), goal_column);
2831 let reversed = start_column < tail.column();
2832
2833 let selection_ranges = (start_row.0..=end_row.0)
2834 .map(DisplayRow)
2835 .filter_map(|row| {
2836 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2837 let start = display_map
2838 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2839 .to_point(display_map);
2840 let end = display_map
2841 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2842 .to_point(display_map);
2843 if reversed {
2844 Some(end..start)
2845 } else {
2846 Some(start..end)
2847 }
2848 } else {
2849 None
2850 }
2851 })
2852 .collect::<Vec<_>>();
2853
2854 self.change_selections(None, cx, |s| {
2855 s.select_ranges(selection_ranges);
2856 });
2857 cx.notify();
2858 }
2859
2860 pub fn has_pending_nonempty_selection(&self) -> bool {
2861 let pending_nonempty_selection = match self.selections.pending_anchor() {
2862 Some(Selection { start, end, .. }) => start != end,
2863 None => false,
2864 };
2865
2866 pending_nonempty_selection
2867 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2868 }
2869
2870 pub fn has_pending_selection(&self) -> bool {
2871 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2872 }
2873
2874 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2875 if self.clear_clicked_diff_hunks(cx) {
2876 cx.notify();
2877 return;
2878 }
2879 if self.dismiss_menus_and_popups(true, cx) {
2880 return;
2881 }
2882
2883 if self.mode == EditorMode::Full {
2884 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2885 return;
2886 }
2887 }
2888
2889 cx.propagate();
2890 }
2891
2892 pub fn dismiss_menus_and_popups(
2893 &mut self,
2894 should_report_inline_completion_event: bool,
2895 cx: &mut ViewContext<Self>,
2896 ) -> bool {
2897 if self.take_rename(false, cx).is_some() {
2898 return true;
2899 }
2900
2901 if hide_hover(self, cx) {
2902 return true;
2903 }
2904
2905 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2906 return true;
2907 }
2908
2909 if self.hide_context_menu(cx).is_some() {
2910 return true;
2911 }
2912
2913 if self.mouse_context_menu.take().is_some() {
2914 return true;
2915 }
2916
2917 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2918 return true;
2919 }
2920
2921 if self.snippet_stack.pop().is_some() {
2922 return true;
2923 }
2924
2925 if self.mode == EditorMode::Full {
2926 if self.active_diagnostics.is_some() {
2927 self.dismiss_diagnostics(cx);
2928 return true;
2929 }
2930 }
2931
2932 false
2933 }
2934
2935 fn linked_editing_ranges_for(
2936 &self,
2937 selection: Range<text::Anchor>,
2938 cx: &AppContext,
2939 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2940 if self.linked_edit_ranges.is_empty() {
2941 return None;
2942 }
2943 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2944 selection.end.buffer_id.and_then(|end_buffer_id| {
2945 if selection.start.buffer_id != Some(end_buffer_id) {
2946 return None;
2947 }
2948 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2949 let snapshot = buffer.read(cx).snapshot();
2950 self.linked_edit_ranges
2951 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2952 .map(|ranges| (ranges, snapshot, buffer))
2953 })?;
2954 use text::ToOffset as TO;
2955 // find offset from the start of current range to current cursor position
2956 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2957
2958 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2959 let start_difference = start_offset - start_byte_offset;
2960 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2961 let end_difference = end_offset - start_byte_offset;
2962 // Current range has associated linked ranges.
2963 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2964 for range in linked_ranges.iter() {
2965 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2966 let end_offset = start_offset + end_difference;
2967 let start_offset = start_offset + start_difference;
2968 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2969 continue;
2970 }
2971 let start = buffer_snapshot.anchor_after(start_offset);
2972 let end = buffer_snapshot.anchor_after(end_offset);
2973 linked_edits
2974 .entry(buffer.clone())
2975 .or_default()
2976 .push(start..end);
2977 }
2978 Some(linked_edits)
2979 }
2980
2981 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2982 let text: Arc<str> = text.into();
2983
2984 if self.read_only(cx) {
2985 return;
2986 }
2987
2988 let selections = self.selections.all_adjusted(cx);
2989 let mut bracket_inserted = false;
2990 let mut edits = Vec::new();
2991 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2992 let mut new_selections = Vec::with_capacity(selections.len());
2993 let mut new_autoclose_regions = Vec::new();
2994 let snapshot = self.buffer.read(cx).read(cx);
2995
2996 for (selection, autoclose_region) in
2997 self.selections_with_autoclose_regions(selections, &snapshot)
2998 {
2999 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3000 // Determine if the inserted text matches the opening or closing
3001 // bracket of any of this language's bracket pairs.
3002 let mut bracket_pair = None;
3003 let mut is_bracket_pair_start = false;
3004 let mut is_bracket_pair_end = false;
3005 if !text.is_empty() {
3006 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3007 // and they are removing the character that triggered IME popup.
3008 for (pair, enabled) in scope.brackets() {
3009 if !pair.close && !pair.surround {
3010 continue;
3011 }
3012
3013 if enabled && pair.start.ends_with(text.as_ref()) {
3014 bracket_pair = Some(pair.clone());
3015 is_bracket_pair_start = true;
3016 break;
3017 }
3018 if pair.end.as_str() == text.as_ref() {
3019 bracket_pair = Some(pair.clone());
3020 is_bracket_pair_end = true;
3021 break;
3022 }
3023 }
3024 }
3025
3026 if let Some(bracket_pair) = bracket_pair {
3027 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3028 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3029 let auto_surround =
3030 self.use_auto_surround && snapshot_settings.use_auto_surround;
3031 if selection.is_empty() {
3032 if is_bracket_pair_start {
3033 let prefix_len = bracket_pair.start.len() - text.len();
3034
3035 // If the inserted text is a suffix of an opening bracket and the
3036 // selection is preceded by the rest of the opening bracket, then
3037 // insert the closing bracket.
3038 let following_text_allows_autoclose = snapshot
3039 .chars_at(selection.start)
3040 .next()
3041 .map_or(true, |c| scope.should_autoclose_before(c));
3042 let preceding_text_matches_prefix = prefix_len == 0
3043 || (selection.start.column >= (prefix_len as u32)
3044 && snapshot.contains_str_at(
3045 Point::new(
3046 selection.start.row,
3047 selection.start.column - (prefix_len as u32),
3048 ),
3049 &bracket_pair.start[..prefix_len],
3050 ));
3051
3052 if autoclose
3053 && bracket_pair.close
3054 && following_text_allows_autoclose
3055 && preceding_text_matches_prefix
3056 {
3057 let anchor = snapshot.anchor_before(selection.end);
3058 new_selections.push((selection.map(|_| anchor), text.len()));
3059 new_autoclose_regions.push((
3060 anchor,
3061 text.len(),
3062 selection.id,
3063 bracket_pair.clone(),
3064 ));
3065 edits.push((
3066 selection.range(),
3067 format!("{}{}", text, bracket_pair.end).into(),
3068 ));
3069 bracket_inserted = true;
3070 continue;
3071 }
3072 }
3073
3074 if let Some(region) = autoclose_region {
3075 // If the selection is followed by an auto-inserted closing bracket,
3076 // then don't insert that closing bracket again; just move the selection
3077 // past the closing bracket.
3078 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3079 && text.as_ref() == region.pair.end.as_str();
3080 if should_skip {
3081 let anchor = snapshot.anchor_after(selection.end);
3082 new_selections
3083 .push((selection.map(|_| anchor), region.pair.end.len()));
3084 continue;
3085 }
3086 }
3087
3088 let always_treat_brackets_as_autoclosed = snapshot
3089 .settings_at(selection.start, cx)
3090 .always_treat_brackets_as_autoclosed;
3091 if always_treat_brackets_as_autoclosed
3092 && is_bracket_pair_end
3093 && snapshot.contains_str_at(selection.end, text.as_ref())
3094 {
3095 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3096 // and the inserted text is a closing bracket and the selection is followed
3097 // by the closing bracket then move the selection past the closing bracket.
3098 let anchor = snapshot.anchor_after(selection.end);
3099 new_selections.push((selection.map(|_| anchor), text.len()));
3100 continue;
3101 }
3102 }
3103 // If an opening bracket is 1 character long and is typed while
3104 // text is selected, then surround that text with the bracket pair.
3105 else if auto_surround
3106 && bracket_pair.surround
3107 && is_bracket_pair_start
3108 && bracket_pair.start.chars().count() == 1
3109 {
3110 edits.push((selection.start..selection.start, text.clone()));
3111 edits.push((
3112 selection.end..selection.end,
3113 bracket_pair.end.as_str().into(),
3114 ));
3115 bracket_inserted = true;
3116 new_selections.push((
3117 Selection {
3118 id: selection.id,
3119 start: snapshot.anchor_after(selection.start),
3120 end: snapshot.anchor_before(selection.end),
3121 reversed: selection.reversed,
3122 goal: selection.goal,
3123 },
3124 0,
3125 ));
3126 continue;
3127 }
3128 }
3129 }
3130
3131 if self.auto_replace_emoji_shortcode
3132 && selection.is_empty()
3133 && text.as_ref().ends_with(':')
3134 {
3135 if let Some(possible_emoji_short_code) =
3136 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3137 {
3138 if !possible_emoji_short_code.is_empty() {
3139 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3140 let emoji_shortcode_start = Point::new(
3141 selection.start.row,
3142 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3143 );
3144
3145 // Remove shortcode from buffer
3146 edits.push((
3147 emoji_shortcode_start..selection.start,
3148 "".to_string().into(),
3149 ));
3150 new_selections.push((
3151 Selection {
3152 id: selection.id,
3153 start: snapshot.anchor_after(emoji_shortcode_start),
3154 end: snapshot.anchor_before(selection.start),
3155 reversed: selection.reversed,
3156 goal: selection.goal,
3157 },
3158 0,
3159 ));
3160
3161 // Insert emoji
3162 let selection_start_anchor = snapshot.anchor_after(selection.start);
3163 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3164 edits.push((selection.start..selection.end, emoji.to_string().into()));
3165
3166 continue;
3167 }
3168 }
3169 }
3170 }
3171
3172 // If not handling any auto-close operation, then just replace the selected
3173 // text with the given input and move the selection to the end of the
3174 // newly inserted text.
3175 let anchor = snapshot.anchor_after(selection.end);
3176 if !self.linked_edit_ranges.is_empty() {
3177 let start_anchor = snapshot.anchor_before(selection.start);
3178
3179 let is_word_char = text.chars().next().map_or(true, |char| {
3180 let scope = snapshot.language_scope_at(start_anchor.to_offset(&snapshot));
3181 let kind = char_kind(&scope, char);
3182
3183 kind == CharKind::Word
3184 });
3185
3186 if is_word_char {
3187 if let Some(ranges) = self
3188 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3189 {
3190 for (buffer, edits) in ranges {
3191 linked_edits
3192 .entry(buffer.clone())
3193 .or_default()
3194 .extend(edits.into_iter().map(|range| (range, text.clone())));
3195 }
3196 }
3197 }
3198 }
3199
3200 new_selections.push((selection.map(|_| anchor), 0));
3201 edits.push((selection.start..selection.end, text.clone()));
3202 }
3203
3204 drop(snapshot);
3205
3206 self.transact(cx, |this, cx| {
3207 this.buffer.update(cx, |buffer, cx| {
3208 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3209 });
3210 for (buffer, edits) in linked_edits {
3211 buffer.update(cx, |buffer, cx| {
3212 let snapshot = buffer.snapshot();
3213 let edits = edits
3214 .into_iter()
3215 .map(|(range, text)| {
3216 use text::ToPoint as TP;
3217 let end_point = TP::to_point(&range.end, &snapshot);
3218 let start_point = TP::to_point(&range.start, &snapshot);
3219 (start_point..end_point, text)
3220 })
3221 .sorted_by_key(|(range, _)| range.start)
3222 .collect::<Vec<_>>();
3223 buffer.edit(edits, None, cx);
3224 })
3225 }
3226 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3227 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3228 let snapshot = this.buffer.read(cx).read(cx);
3229 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3230 .zip(new_selection_deltas)
3231 .map(|(selection, delta)| Selection {
3232 id: selection.id,
3233 start: selection.start + delta,
3234 end: selection.end + delta,
3235 reversed: selection.reversed,
3236 goal: SelectionGoal::None,
3237 })
3238 .collect::<Vec<_>>();
3239
3240 let mut i = 0;
3241 for (position, delta, selection_id, pair) in new_autoclose_regions {
3242 let position = position.to_offset(&snapshot) + delta;
3243 let start = snapshot.anchor_before(position);
3244 let end = snapshot.anchor_after(position);
3245 while let Some(existing_state) = this.autoclose_regions.get(i) {
3246 match existing_state.range.start.cmp(&start, &snapshot) {
3247 Ordering::Less => i += 1,
3248 Ordering::Greater => break,
3249 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3250 Ordering::Less => i += 1,
3251 Ordering::Equal => break,
3252 Ordering::Greater => break,
3253 },
3254 }
3255 }
3256 this.autoclose_regions.insert(
3257 i,
3258 AutocloseRegion {
3259 selection_id,
3260 range: start..end,
3261 pair,
3262 },
3263 );
3264 }
3265
3266 drop(snapshot);
3267 let had_active_inline_completion = this.has_active_inline_completion(cx);
3268 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3269 s.select(new_selections)
3270 });
3271
3272 if !bracket_inserted && EditorSettings::get_global(cx).use_on_type_format {
3273 if let Some(on_type_format_task) =
3274 this.trigger_on_type_formatting(text.to_string(), cx)
3275 {
3276 on_type_format_task.detach_and_log_err(cx);
3277 }
3278 }
3279
3280 let editor_settings = EditorSettings::get_global(cx);
3281 if bracket_inserted
3282 && (editor_settings.auto_signature_help
3283 || editor_settings.show_signature_help_after_edits)
3284 {
3285 this.show_signature_help(&ShowSignatureHelp, cx);
3286 }
3287
3288 let trigger_in_words = !had_active_inline_completion;
3289 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3290 linked_editing_ranges::refresh_linked_ranges(this, cx);
3291 this.refresh_inline_completion(true, cx);
3292 });
3293 }
3294
3295 fn find_possible_emoji_shortcode_at_position(
3296 snapshot: &MultiBufferSnapshot,
3297 position: Point,
3298 ) -> Option<String> {
3299 let mut chars = Vec::new();
3300 let mut found_colon = false;
3301 for char in snapshot.reversed_chars_at(position).take(100) {
3302 // Found a possible emoji shortcode in the middle of the buffer
3303 if found_colon {
3304 if char.is_whitespace() {
3305 chars.reverse();
3306 return Some(chars.iter().collect());
3307 }
3308 // If the previous character is not a whitespace, we are in the middle of a word
3309 // and we only want to complete the shortcode if the word is made up of other emojis
3310 let mut containing_word = String::new();
3311 for ch in snapshot
3312 .reversed_chars_at(position)
3313 .skip(chars.len() + 1)
3314 .take(100)
3315 {
3316 if ch.is_whitespace() {
3317 break;
3318 }
3319 containing_word.push(ch);
3320 }
3321 let containing_word = containing_word.chars().rev().collect::<String>();
3322 if util::word_consists_of_emojis(containing_word.as_str()) {
3323 chars.reverse();
3324 return Some(chars.iter().collect());
3325 }
3326 }
3327
3328 if char.is_whitespace() || !char.is_ascii() {
3329 return None;
3330 }
3331 if char == ':' {
3332 found_colon = true;
3333 } else {
3334 chars.push(char);
3335 }
3336 }
3337 // Found a possible emoji shortcode at the beginning of the buffer
3338 chars.reverse();
3339 Some(chars.iter().collect())
3340 }
3341
3342 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3343 self.transact(cx, |this, cx| {
3344 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3345 let selections = this.selections.all::<usize>(cx);
3346 let multi_buffer = this.buffer.read(cx);
3347 let buffer = multi_buffer.snapshot(cx);
3348 selections
3349 .iter()
3350 .map(|selection| {
3351 let start_point = selection.start.to_point(&buffer);
3352 let mut indent =
3353 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3354 indent.len = cmp::min(indent.len, start_point.column);
3355 let start = selection.start;
3356 let end = selection.end;
3357 let selection_is_empty = start == end;
3358 let language_scope = buffer.language_scope_at(start);
3359 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3360 &language_scope
3361 {
3362 let leading_whitespace_len = buffer
3363 .reversed_chars_at(start)
3364 .take_while(|c| c.is_whitespace() && *c != '\n')
3365 .map(|c| c.len_utf8())
3366 .sum::<usize>();
3367
3368 let trailing_whitespace_len = buffer
3369 .chars_at(end)
3370 .take_while(|c| c.is_whitespace() && *c != '\n')
3371 .map(|c| c.len_utf8())
3372 .sum::<usize>();
3373
3374 let insert_extra_newline =
3375 language.brackets().any(|(pair, enabled)| {
3376 let pair_start = pair.start.trim_end();
3377 let pair_end = pair.end.trim_start();
3378
3379 enabled
3380 && pair.newline
3381 && buffer.contains_str_at(
3382 end + trailing_whitespace_len,
3383 pair_end,
3384 )
3385 && buffer.contains_str_at(
3386 (start - leading_whitespace_len)
3387 .saturating_sub(pair_start.len()),
3388 pair_start,
3389 )
3390 });
3391
3392 // Comment extension on newline is allowed only for cursor selections
3393 let comment_delimiter = maybe!({
3394 if !selection_is_empty {
3395 return None;
3396 }
3397
3398 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3399 return None;
3400 }
3401
3402 let delimiters = language.line_comment_prefixes();
3403 let max_len_of_delimiter =
3404 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3405 let (snapshot, range) =
3406 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3407
3408 let mut index_of_first_non_whitespace = 0;
3409 let comment_candidate = snapshot
3410 .chars_for_range(range)
3411 .skip_while(|c| {
3412 let should_skip = c.is_whitespace();
3413 if should_skip {
3414 index_of_first_non_whitespace += 1;
3415 }
3416 should_skip
3417 })
3418 .take(max_len_of_delimiter)
3419 .collect::<String>();
3420 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3421 comment_candidate.starts_with(comment_prefix.as_ref())
3422 })?;
3423 let cursor_is_placed_after_comment_marker =
3424 index_of_first_non_whitespace + comment_prefix.len()
3425 <= start_point.column as usize;
3426 if cursor_is_placed_after_comment_marker {
3427 Some(comment_prefix.clone())
3428 } else {
3429 None
3430 }
3431 });
3432 (comment_delimiter, insert_extra_newline)
3433 } else {
3434 (None, false)
3435 };
3436
3437 let capacity_for_delimiter = comment_delimiter
3438 .as_deref()
3439 .map(str::len)
3440 .unwrap_or_default();
3441 let mut new_text =
3442 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3443 new_text.push_str("\n");
3444 new_text.extend(indent.chars());
3445 if let Some(delimiter) = &comment_delimiter {
3446 new_text.push_str(&delimiter);
3447 }
3448 if insert_extra_newline {
3449 new_text = new_text.repeat(2);
3450 }
3451
3452 let anchor = buffer.anchor_after(end);
3453 let new_selection = selection.map(|_| anchor);
3454 (
3455 (start..end, new_text),
3456 (insert_extra_newline, new_selection),
3457 )
3458 })
3459 .unzip()
3460 };
3461
3462 this.edit_with_autoindent(edits, cx);
3463 let buffer = this.buffer.read(cx).snapshot(cx);
3464 let new_selections = selection_fixup_info
3465 .into_iter()
3466 .map(|(extra_newline_inserted, new_selection)| {
3467 let mut cursor = new_selection.end.to_point(&buffer);
3468 if extra_newline_inserted {
3469 cursor.row -= 1;
3470 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3471 }
3472 new_selection.map(|_| cursor)
3473 })
3474 .collect();
3475
3476 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3477 this.refresh_inline_completion(true, cx);
3478 });
3479 }
3480
3481 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3482 let buffer = self.buffer.read(cx);
3483 let snapshot = buffer.snapshot(cx);
3484
3485 let mut edits = Vec::new();
3486 let mut rows = Vec::new();
3487
3488 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3489 let cursor = selection.head();
3490 let row = cursor.row;
3491
3492 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3493
3494 let newline = "\n".to_string();
3495 edits.push((start_of_line..start_of_line, newline));
3496
3497 rows.push(row + rows_inserted as u32);
3498 }
3499
3500 self.transact(cx, |editor, cx| {
3501 editor.edit(edits, cx);
3502
3503 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3504 let mut index = 0;
3505 s.move_cursors_with(|map, _, _| {
3506 let row = rows[index];
3507 index += 1;
3508
3509 let point = Point::new(row, 0);
3510 let boundary = map.next_line_boundary(point).1;
3511 let clipped = map.clip_point(boundary, Bias::Left);
3512
3513 (clipped, SelectionGoal::None)
3514 });
3515 });
3516
3517 let mut indent_edits = Vec::new();
3518 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3519 for row in rows {
3520 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3521 for (row, indent) in indents {
3522 if indent.len == 0 {
3523 continue;
3524 }
3525
3526 let text = match indent.kind {
3527 IndentKind::Space => " ".repeat(indent.len as usize),
3528 IndentKind::Tab => "\t".repeat(indent.len as usize),
3529 };
3530 let point = Point::new(row.0, 0);
3531 indent_edits.push((point..point, text));
3532 }
3533 }
3534 editor.edit(indent_edits, cx);
3535 });
3536 }
3537
3538 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3539 let buffer = self.buffer.read(cx);
3540 let snapshot = buffer.snapshot(cx);
3541
3542 let mut edits = Vec::new();
3543 let mut rows = Vec::new();
3544 let mut rows_inserted = 0;
3545
3546 for selection in self.selections.all_adjusted(cx) {
3547 let cursor = selection.head();
3548 let row = cursor.row;
3549
3550 let point = Point::new(row + 1, 0);
3551 let start_of_line = snapshot.clip_point(point, Bias::Left);
3552
3553 let newline = "\n".to_string();
3554 edits.push((start_of_line..start_of_line, newline));
3555
3556 rows_inserted += 1;
3557 rows.push(row + rows_inserted);
3558 }
3559
3560 self.transact(cx, |editor, cx| {
3561 editor.edit(edits, cx);
3562
3563 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3564 let mut index = 0;
3565 s.move_cursors_with(|map, _, _| {
3566 let row = rows[index];
3567 index += 1;
3568
3569 let point = Point::new(row, 0);
3570 let boundary = map.next_line_boundary(point).1;
3571 let clipped = map.clip_point(boundary, Bias::Left);
3572
3573 (clipped, SelectionGoal::None)
3574 });
3575 });
3576
3577 let mut indent_edits = Vec::new();
3578 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3579 for row in rows {
3580 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3581 for (row, indent) in indents {
3582 if indent.len == 0 {
3583 continue;
3584 }
3585
3586 let text = match indent.kind {
3587 IndentKind::Space => " ".repeat(indent.len as usize),
3588 IndentKind::Tab => "\t".repeat(indent.len as usize),
3589 };
3590 let point = Point::new(row.0, 0);
3591 indent_edits.push((point..point, text));
3592 }
3593 }
3594 editor.edit(indent_edits, cx);
3595 });
3596 }
3597
3598 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3599 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3600 original_indent_columns: Vec::new(),
3601 });
3602 self.insert_with_autoindent_mode(text, autoindent, cx);
3603 }
3604
3605 fn insert_with_autoindent_mode(
3606 &mut self,
3607 text: &str,
3608 autoindent_mode: Option<AutoindentMode>,
3609 cx: &mut ViewContext<Self>,
3610 ) {
3611 if self.read_only(cx) {
3612 return;
3613 }
3614
3615 let text: Arc<str> = text.into();
3616 self.transact(cx, |this, cx| {
3617 let old_selections = this.selections.all_adjusted(cx);
3618 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3619 let anchors = {
3620 let snapshot = buffer.read(cx);
3621 old_selections
3622 .iter()
3623 .map(|s| {
3624 let anchor = snapshot.anchor_after(s.head());
3625 s.map(|_| anchor)
3626 })
3627 .collect::<Vec<_>>()
3628 };
3629 buffer.edit(
3630 old_selections
3631 .iter()
3632 .map(|s| (s.start..s.end, text.clone())),
3633 autoindent_mode,
3634 cx,
3635 );
3636 anchors
3637 });
3638
3639 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3640 s.select_anchors(selection_anchors);
3641 })
3642 });
3643 }
3644
3645 fn trigger_completion_on_input(
3646 &mut self,
3647 text: &str,
3648 trigger_in_words: bool,
3649 cx: &mut ViewContext<Self>,
3650 ) {
3651 if self.is_completion_trigger(text, trigger_in_words, cx) {
3652 self.show_completions(
3653 &ShowCompletions {
3654 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3655 },
3656 cx,
3657 );
3658 } else {
3659 self.hide_context_menu(cx);
3660 }
3661 }
3662
3663 fn is_completion_trigger(
3664 &self,
3665 text: &str,
3666 trigger_in_words: bool,
3667 cx: &mut ViewContext<Self>,
3668 ) -> bool {
3669 let position = self.selections.newest_anchor().head();
3670 let multibuffer = self.buffer.read(cx);
3671 let Some(buffer) = position
3672 .buffer_id
3673 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3674 else {
3675 return false;
3676 };
3677
3678 if let Some(completion_provider) = &self.completion_provider {
3679 completion_provider.is_completion_trigger(
3680 &buffer,
3681 position.text_anchor,
3682 text,
3683 trigger_in_words,
3684 cx,
3685 )
3686 } else {
3687 false
3688 }
3689 }
3690
3691 /// If any empty selections is touching the start of its innermost containing autoclose
3692 /// region, expand it to select the brackets.
3693 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3694 let selections = self.selections.all::<usize>(cx);
3695 let buffer = self.buffer.read(cx).read(cx);
3696 let new_selections = self
3697 .selections_with_autoclose_regions(selections, &buffer)
3698 .map(|(mut selection, region)| {
3699 if !selection.is_empty() {
3700 return selection;
3701 }
3702
3703 if let Some(region) = region {
3704 let mut range = region.range.to_offset(&buffer);
3705 if selection.start == range.start && range.start >= region.pair.start.len() {
3706 range.start -= region.pair.start.len();
3707 if buffer.contains_str_at(range.start, ®ion.pair.start)
3708 && buffer.contains_str_at(range.end, ®ion.pair.end)
3709 {
3710 range.end += region.pair.end.len();
3711 selection.start = range.start;
3712 selection.end = range.end;
3713
3714 return selection;
3715 }
3716 }
3717 }
3718
3719 let always_treat_brackets_as_autoclosed = buffer
3720 .settings_at(selection.start, cx)
3721 .always_treat_brackets_as_autoclosed;
3722
3723 if !always_treat_brackets_as_autoclosed {
3724 return selection;
3725 }
3726
3727 if let Some(scope) = buffer.language_scope_at(selection.start) {
3728 for (pair, enabled) in scope.brackets() {
3729 if !enabled || !pair.close {
3730 continue;
3731 }
3732
3733 if buffer.contains_str_at(selection.start, &pair.end) {
3734 let pair_start_len = pair.start.len();
3735 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3736 {
3737 selection.start -= pair_start_len;
3738 selection.end += pair.end.len();
3739
3740 return selection;
3741 }
3742 }
3743 }
3744 }
3745
3746 selection
3747 })
3748 .collect();
3749
3750 drop(buffer);
3751 self.change_selections(None, cx, |selections| selections.select(new_selections));
3752 }
3753
3754 /// Iterate the given selections, and for each one, find the smallest surrounding
3755 /// autoclose region. This uses the ordering of the selections and the autoclose
3756 /// regions to avoid repeated comparisons.
3757 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3758 &'a self,
3759 selections: impl IntoIterator<Item = Selection<D>>,
3760 buffer: &'a MultiBufferSnapshot,
3761 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3762 let mut i = 0;
3763 let mut regions = self.autoclose_regions.as_slice();
3764 selections.into_iter().map(move |selection| {
3765 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3766
3767 let mut enclosing = None;
3768 while let Some(pair_state) = regions.get(i) {
3769 if pair_state.range.end.to_offset(buffer) < range.start {
3770 regions = ®ions[i + 1..];
3771 i = 0;
3772 } else if pair_state.range.start.to_offset(buffer) > range.end {
3773 break;
3774 } else {
3775 if pair_state.selection_id == selection.id {
3776 enclosing = Some(pair_state);
3777 }
3778 i += 1;
3779 }
3780 }
3781
3782 (selection.clone(), enclosing)
3783 })
3784 }
3785
3786 /// Remove any autoclose regions that no longer contain their selection.
3787 fn invalidate_autoclose_regions(
3788 &mut self,
3789 mut selections: &[Selection<Anchor>],
3790 buffer: &MultiBufferSnapshot,
3791 ) {
3792 self.autoclose_regions.retain(|state| {
3793 let mut i = 0;
3794 while let Some(selection) = selections.get(i) {
3795 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3796 selections = &selections[1..];
3797 continue;
3798 }
3799 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3800 break;
3801 }
3802 if selection.id == state.selection_id {
3803 return true;
3804 } else {
3805 i += 1;
3806 }
3807 }
3808 false
3809 });
3810 }
3811
3812 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3813 let offset = position.to_offset(buffer);
3814 let (word_range, kind) = buffer.surrounding_word(offset);
3815 if offset > word_range.start && kind == Some(CharKind::Word) {
3816 Some(
3817 buffer
3818 .text_for_range(word_range.start..offset)
3819 .collect::<String>(),
3820 )
3821 } else {
3822 None
3823 }
3824 }
3825
3826 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3827 self.refresh_inlay_hints(
3828 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3829 cx,
3830 );
3831 }
3832
3833 pub fn inlay_hints_enabled(&self) -> bool {
3834 self.inlay_hint_cache.enabled
3835 }
3836
3837 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3838 if self.project.is_none() || self.mode != EditorMode::Full {
3839 return;
3840 }
3841
3842 let reason_description = reason.description();
3843 let ignore_debounce = matches!(
3844 reason,
3845 InlayHintRefreshReason::SettingsChange(_)
3846 | InlayHintRefreshReason::Toggle(_)
3847 | InlayHintRefreshReason::ExcerptsRemoved(_)
3848 );
3849 let (invalidate_cache, required_languages) = match reason {
3850 InlayHintRefreshReason::Toggle(enabled) => {
3851 self.inlay_hint_cache.enabled = enabled;
3852 if enabled {
3853 (InvalidationStrategy::RefreshRequested, None)
3854 } else {
3855 self.inlay_hint_cache.clear();
3856 self.splice_inlays(
3857 self.visible_inlay_hints(cx)
3858 .iter()
3859 .map(|inlay| inlay.id)
3860 .collect(),
3861 Vec::new(),
3862 cx,
3863 );
3864 return;
3865 }
3866 }
3867 InlayHintRefreshReason::SettingsChange(new_settings) => {
3868 match self.inlay_hint_cache.update_settings(
3869 &self.buffer,
3870 new_settings,
3871 self.visible_inlay_hints(cx),
3872 cx,
3873 ) {
3874 ControlFlow::Break(Some(InlaySplice {
3875 to_remove,
3876 to_insert,
3877 })) => {
3878 self.splice_inlays(to_remove, to_insert, cx);
3879 return;
3880 }
3881 ControlFlow::Break(None) => return,
3882 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3883 }
3884 }
3885 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3886 if let Some(InlaySplice {
3887 to_remove,
3888 to_insert,
3889 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3890 {
3891 self.splice_inlays(to_remove, to_insert, cx);
3892 }
3893 return;
3894 }
3895 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3896 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3897 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3898 }
3899 InlayHintRefreshReason::RefreshRequested => {
3900 (InvalidationStrategy::RefreshRequested, None)
3901 }
3902 };
3903
3904 if let Some(InlaySplice {
3905 to_remove,
3906 to_insert,
3907 }) = self.inlay_hint_cache.spawn_hint_refresh(
3908 reason_description,
3909 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3910 invalidate_cache,
3911 ignore_debounce,
3912 cx,
3913 ) {
3914 self.splice_inlays(to_remove, to_insert, cx);
3915 }
3916 }
3917
3918 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3919 self.display_map
3920 .read(cx)
3921 .current_inlays()
3922 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3923 .cloned()
3924 .collect()
3925 }
3926
3927 pub fn excerpts_for_inlay_hints_query(
3928 &self,
3929 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3930 cx: &mut ViewContext<Editor>,
3931 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3932 let Some(project) = self.project.as_ref() else {
3933 return HashMap::default();
3934 };
3935 let project = project.read(cx);
3936 let multi_buffer = self.buffer().read(cx);
3937 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3938 let multi_buffer_visible_start = self
3939 .scroll_manager
3940 .anchor()
3941 .anchor
3942 .to_point(&multi_buffer_snapshot);
3943 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3944 multi_buffer_visible_start
3945 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3946 Bias::Left,
3947 );
3948 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3949 multi_buffer
3950 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3951 .into_iter()
3952 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3953 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3954 let buffer = buffer_handle.read(cx);
3955 let buffer_file = project::File::from_dyn(buffer.file())?;
3956 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3957 let worktree_entry = buffer_worktree
3958 .read(cx)
3959 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3960 if worktree_entry.is_ignored {
3961 return None;
3962 }
3963
3964 let language = buffer.language()?;
3965 if let Some(restrict_to_languages) = restrict_to_languages {
3966 if !restrict_to_languages.contains(language) {
3967 return None;
3968 }
3969 }
3970 Some((
3971 excerpt_id,
3972 (
3973 buffer_handle,
3974 buffer.version().clone(),
3975 excerpt_visible_range,
3976 ),
3977 ))
3978 })
3979 .collect()
3980 }
3981
3982 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3983 TextLayoutDetails {
3984 text_system: cx.text_system().clone(),
3985 editor_style: self.style.clone().unwrap(),
3986 rem_size: cx.rem_size(),
3987 scroll_anchor: self.scroll_manager.anchor(),
3988 visible_rows: self.visible_line_count(),
3989 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3990 }
3991 }
3992
3993 fn splice_inlays(
3994 &self,
3995 to_remove: Vec<InlayId>,
3996 to_insert: Vec<Inlay>,
3997 cx: &mut ViewContext<Self>,
3998 ) {
3999 self.display_map.update(cx, |display_map, cx| {
4000 display_map.splice_inlays(to_remove, to_insert, cx);
4001 });
4002 cx.notify();
4003 }
4004
4005 fn trigger_on_type_formatting(
4006 &self,
4007 input: String,
4008 cx: &mut ViewContext<Self>,
4009 ) -> Option<Task<Result<()>>> {
4010 if input.len() != 1 {
4011 return None;
4012 }
4013
4014 let project = self.project.as_ref()?;
4015 let position = self.selections.newest_anchor().head();
4016 let (buffer, buffer_position) = self
4017 .buffer
4018 .read(cx)
4019 .text_anchor_for_position(position, cx)?;
4020
4021 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4022 // hence we do LSP request & edit on host side only — add formats to host's history.
4023 let push_to_lsp_host_history = true;
4024 // If this is not the host, append its history with new edits.
4025 let push_to_client_history = project.read(cx).is_remote();
4026
4027 let on_type_formatting = project.update(cx, |project, cx| {
4028 project.on_type_format(
4029 buffer.clone(),
4030 buffer_position,
4031 input,
4032 push_to_lsp_host_history,
4033 cx,
4034 )
4035 });
4036 Some(cx.spawn(|editor, mut cx| async move {
4037 if let Some(transaction) = on_type_formatting.await? {
4038 if push_to_client_history {
4039 buffer
4040 .update(&mut cx, |buffer, _| {
4041 buffer.push_transaction(transaction, Instant::now());
4042 })
4043 .ok();
4044 }
4045 editor.update(&mut cx, |editor, cx| {
4046 editor.refresh_document_highlights(cx);
4047 })?;
4048 }
4049 Ok(())
4050 }))
4051 }
4052
4053 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4054 if self.pending_rename.is_some() {
4055 return;
4056 }
4057
4058 let Some(provider) = self.completion_provider.as_ref() else {
4059 return;
4060 };
4061
4062 let position = self.selections.newest_anchor().head();
4063 let (buffer, buffer_position) =
4064 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4065 output
4066 } else {
4067 return;
4068 };
4069
4070 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4071 let is_followup_invoke = {
4072 let context_menu_state = self.context_menu.read();
4073 matches!(
4074 context_menu_state.deref(),
4075 Some(ContextMenu::Completions(_))
4076 )
4077 };
4078 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4079 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4080 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(&trigger) => {
4081 CompletionTriggerKind::TRIGGER_CHARACTER
4082 }
4083
4084 _ => CompletionTriggerKind::INVOKED,
4085 };
4086 let completion_context = CompletionContext {
4087 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4088 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4089 Some(String::from(trigger))
4090 } else {
4091 None
4092 }
4093 }),
4094 trigger_kind,
4095 };
4096 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4097
4098 let id = post_inc(&mut self.next_completion_id);
4099 let task = cx.spawn(|this, mut cx| {
4100 async move {
4101 this.update(&mut cx, |this, _| {
4102 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4103 })?;
4104 let completions = completions.await.log_err();
4105 let menu = if let Some(completions) = completions {
4106 let mut menu = CompletionsMenu {
4107 id,
4108 initial_position: position,
4109 match_candidates: completions
4110 .iter()
4111 .enumerate()
4112 .map(|(id, completion)| {
4113 StringMatchCandidate::new(
4114 id,
4115 completion.label.text[completion.label.filter_range.clone()]
4116 .into(),
4117 )
4118 })
4119 .collect(),
4120 buffer: buffer.clone(),
4121 completions: Arc::new(RwLock::new(completions.into())),
4122 matches: Vec::new().into(),
4123 selected_item: 0,
4124 scroll_handle: UniformListScrollHandle::new(),
4125 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4126 DebouncedDelay::new(),
4127 )),
4128 };
4129 menu.filter(query.as_deref(), cx.background_executor().clone())
4130 .await;
4131
4132 if menu.matches.is_empty() {
4133 None
4134 } else {
4135 this.update(&mut cx, |editor, cx| {
4136 let completions = menu.completions.clone();
4137 let matches = menu.matches.clone();
4138
4139 let delay_ms = EditorSettings::get_global(cx)
4140 .completion_documentation_secondary_query_debounce;
4141 let delay = Duration::from_millis(delay_ms);
4142 editor
4143 .completion_documentation_pre_resolve_debounce
4144 .fire_new(delay, cx, |editor, cx| {
4145 CompletionsMenu::pre_resolve_completion_documentation(
4146 buffer,
4147 completions,
4148 matches,
4149 editor,
4150 cx,
4151 )
4152 });
4153 })
4154 .ok();
4155 Some(menu)
4156 }
4157 } else {
4158 None
4159 };
4160
4161 this.update(&mut cx, |this, cx| {
4162 let mut context_menu = this.context_menu.write();
4163 match context_menu.as_ref() {
4164 None => {}
4165
4166 Some(ContextMenu::Completions(prev_menu)) => {
4167 if prev_menu.id > id {
4168 return;
4169 }
4170 }
4171
4172 _ => return,
4173 }
4174
4175 if this.focus_handle.is_focused(cx) && menu.is_some() {
4176 let menu = menu.unwrap();
4177 *context_menu = Some(ContextMenu::Completions(menu));
4178 drop(context_menu);
4179 this.discard_inline_completion(false, cx);
4180 cx.notify();
4181 } else if this.completion_tasks.len() <= 1 {
4182 // If there are no more completion tasks and the last menu was
4183 // empty, we should hide it. If it was already hidden, we should
4184 // also show the copilot completion when available.
4185 drop(context_menu);
4186 if this.hide_context_menu(cx).is_none() {
4187 this.update_visible_inline_completion(cx);
4188 }
4189 }
4190 })?;
4191
4192 Ok::<_, anyhow::Error>(())
4193 }
4194 .log_err()
4195 });
4196
4197 self.completion_tasks.push((id, task));
4198 }
4199
4200 pub fn confirm_completion(
4201 &mut self,
4202 action: &ConfirmCompletion,
4203 cx: &mut ViewContext<Self>,
4204 ) -> Option<Task<Result<()>>> {
4205 use language::ToOffset as _;
4206
4207 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4208 menu
4209 } else {
4210 return None;
4211 };
4212
4213 let mat = completions_menu
4214 .matches
4215 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
4216 let buffer_handle = completions_menu.buffer;
4217 let completions = completions_menu.completions.read();
4218 let completion = completions.get(mat.candidate_id)?;
4219 cx.stop_propagation();
4220
4221 let snippet;
4222 let text;
4223
4224 if completion.is_snippet() {
4225 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4226 text = snippet.as_ref().unwrap().text.clone();
4227 } else {
4228 snippet = None;
4229 text = completion.new_text.clone();
4230 };
4231 let selections = self.selections.all::<usize>(cx);
4232 let buffer = buffer_handle.read(cx);
4233 let old_range = completion.old_range.to_offset(buffer);
4234 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4235
4236 let newest_selection = self.selections.newest_anchor();
4237 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4238 return None;
4239 }
4240
4241 let lookbehind = newest_selection
4242 .start
4243 .text_anchor
4244 .to_offset(buffer)
4245 .saturating_sub(old_range.start);
4246 let lookahead = old_range
4247 .end
4248 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4249 let mut common_prefix_len = old_text
4250 .bytes()
4251 .zip(text.bytes())
4252 .take_while(|(a, b)| a == b)
4253 .count();
4254
4255 let snapshot = self.buffer.read(cx).snapshot(cx);
4256 let mut range_to_replace: Option<Range<isize>> = None;
4257 let mut ranges = Vec::new();
4258 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4259 for selection in &selections {
4260 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4261 let start = selection.start.saturating_sub(lookbehind);
4262 let end = selection.end + lookahead;
4263 if selection.id == newest_selection.id {
4264 range_to_replace = Some(
4265 ((start + common_prefix_len) as isize - selection.start as isize)
4266 ..(end as isize - selection.start as isize),
4267 );
4268 }
4269 ranges.push(start + common_prefix_len..end);
4270 } else {
4271 common_prefix_len = 0;
4272 ranges.clear();
4273 ranges.extend(selections.iter().map(|s| {
4274 if s.id == newest_selection.id {
4275 range_to_replace = Some(
4276 old_range.start.to_offset_utf16(&snapshot).0 as isize
4277 - selection.start as isize
4278 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4279 - selection.start as isize,
4280 );
4281 old_range.clone()
4282 } else {
4283 s.start..s.end
4284 }
4285 }));
4286 break;
4287 }
4288 if !self.linked_edit_ranges.is_empty() {
4289 let start_anchor = snapshot.anchor_before(selection.head());
4290 let end_anchor = snapshot.anchor_after(selection.tail());
4291 if let Some(ranges) = self
4292 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4293 {
4294 for (buffer, edits) in ranges {
4295 linked_edits.entry(buffer.clone()).or_default().extend(
4296 edits
4297 .into_iter()
4298 .map(|range| (range, text[common_prefix_len..].to_owned())),
4299 );
4300 }
4301 }
4302 }
4303 }
4304 let text = &text[common_prefix_len..];
4305
4306 cx.emit(EditorEvent::InputHandled {
4307 utf16_range_to_replace: range_to_replace,
4308 text: text.into(),
4309 });
4310
4311 self.transact(cx, |this, cx| {
4312 if let Some(mut snippet) = snippet {
4313 snippet.text = text.to_string();
4314 for tabstop in snippet.tabstops.iter_mut().flatten() {
4315 tabstop.start -= common_prefix_len as isize;
4316 tabstop.end -= common_prefix_len as isize;
4317 }
4318
4319 this.insert_snippet(&ranges, snippet, cx).log_err();
4320 } else {
4321 this.buffer.update(cx, |buffer, cx| {
4322 buffer.edit(
4323 ranges.iter().map(|range| (range.clone(), text)),
4324 this.autoindent_mode.clone(),
4325 cx,
4326 );
4327 });
4328 }
4329 for (buffer, edits) in linked_edits {
4330 buffer.update(cx, |buffer, cx| {
4331 let snapshot = buffer.snapshot();
4332 let edits = edits
4333 .into_iter()
4334 .map(|(range, text)| {
4335 use text::ToPoint as TP;
4336 let end_point = TP::to_point(&range.end, &snapshot);
4337 let start_point = TP::to_point(&range.start, &snapshot);
4338 (start_point..end_point, text)
4339 })
4340 .sorted_by_key(|(range, _)| range.start)
4341 .collect::<Vec<_>>();
4342 buffer.edit(edits, None, cx);
4343 })
4344 }
4345
4346 this.refresh_inline_completion(true, cx);
4347 });
4348
4349 if let Some(confirm) = completion.confirm.as_ref() {
4350 (confirm)(cx);
4351 }
4352
4353 if completion.show_new_completions_on_confirm {
4354 self.show_completions(&ShowCompletions { trigger: None }, cx);
4355 }
4356
4357 let provider = self.completion_provider.as_ref()?;
4358 let apply_edits = provider.apply_additional_edits_for_completion(
4359 buffer_handle,
4360 completion.clone(),
4361 true,
4362 cx,
4363 );
4364
4365 let editor_settings = EditorSettings::get_global(cx);
4366 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4367 // After the code completion is finished, users often want to know what signatures are needed.
4368 // so we should automatically call signature_help
4369 self.show_signature_help(&ShowSignatureHelp, cx);
4370 }
4371
4372 Some(cx.foreground_executor().spawn(async move {
4373 apply_edits.await?;
4374 Ok(())
4375 }))
4376 }
4377
4378 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4379 let mut context_menu = self.context_menu.write();
4380 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4381 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4382 // Toggle if we're selecting the same one
4383 *context_menu = None;
4384 cx.notify();
4385 return;
4386 } else {
4387 // Otherwise, clear it and start a new one
4388 *context_menu = None;
4389 cx.notify();
4390 }
4391 }
4392 drop(context_menu);
4393 let snapshot = self.snapshot(cx);
4394 let deployed_from_indicator = action.deployed_from_indicator;
4395 let mut task = self.code_actions_task.take();
4396 let action = action.clone();
4397 cx.spawn(|editor, mut cx| async move {
4398 while let Some(prev_task) = task {
4399 prev_task.await;
4400 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4401 }
4402
4403 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4404 if editor.focus_handle.is_focused(cx) {
4405 let multibuffer_point = action
4406 .deployed_from_indicator
4407 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4408 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4409 let (buffer, buffer_row) = snapshot
4410 .buffer_snapshot
4411 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4412 .and_then(|(buffer_snapshot, range)| {
4413 editor
4414 .buffer
4415 .read(cx)
4416 .buffer(buffer_snapshot.remote_id())
4417 .map(|buffer| (buffer, range.start.row))
4418 })?;
4419 let (_, code_actions) = editor
4420 .available_code_actions
4421 .clone()
4422 .and_then(|(location, code_actions)| {
4423 let snapshot = location.buffer.read(cx).snapshot();
4424 let point_range = location.range.to_point(&snapshot);
4425 let point_range = point_range.start.row..=point_range.end.row;
4426 if point_range.contains(&buffer_row) {
4427 Some((location, code_actions))
4428 } else {
4429 None
4430 }
4431 })
4432 .unzip();
4433 let buffer_id = buffer.read(cx).remote_id();
4434 let tasks = editor
4435 .tasks
4436 .get(&(buffer_id, buffer_row))
4437 .map(|t| Arc::new(t.to_owned()));
4438 if tasks.is_none() && code_actions.is_none() {
4439 return None;
4440 }
4441
4442 editor.completion_tasks.clear();
4443 editor.discard_inline_completion(false, cx);
4444 let task_context =
4445 tasks
4446 .as_ref()
4447 .zip(editor.project.clone())
4448 .map(|(tasks, project)| {
4449 let position = Point::new(buffer_row, tasks.column);
4450 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4451 let location = Location {
4452 buffer: buffer.clone(),
4453 range: range_start..range_start,
4454 };
4455 // Fill in the environmental variables from the tree-sitter captures
4456 let mut captured_task_variables = TaskVariables::default();
4457 for (capture_name, value) in tasks.extra_variables.clone() {
4458 captured_task_variables.insert(
4459 task::VariableName::Custom(capture_name.into()),
4460 value.clone(),
4461 );
4462 }
4463 project.update(cx, |project, cx| {
4464 project.task_context_for_location(
4465 captured_task_variables,
4466 location,
4467 cx,
4468 )
4469 })
4470 });
4471
4472 Some(cx.spawn(|editor, mut cx| async move {
4473 let task_context = match task_context {
4474 Some(task_context) => task_context.await,
4475 None => None,
4476 };
4477 let resolved_tasks =
4478 tasks.zip(task_context).map(|(tasks, task_context)| {
4479 Arc::new(ResolvedTasks {
4480 templates: tasks
4481 .templates
4482 .iter()
4483 .filter_map(|(kind, template)| {
4484 template
4485 .resolve_task(&kind.to_id_base(), &task_context)
4486 .map(|task| (kind.clone(), task))
4487 })
4488 .collect(),
4489 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4490 multibuffer_point.row,
4491 tasks.column,
4492 )),
4493 })
4494 });
4495 let spawn_straight_away = resolved_tasks
4496 .as_ref()
4497 .map_or(false, |tasks| tasks.templates.len() == 1)
4498 && code_actions
4499 .as_ref()
4500 .map_or(true, |actions| actions.is_empty());
4501 if let Some(task) = editor
4502 .update(&mut cx, |editor, cx| {
4503 *editor.context_menu.write() =
4504 Some(ContextMenu::CodeActions(CodeActionsMenu {
4505 buffer,
4506 actions: CodeActionContents {
4507 tasks: resolved_tasks,
4508 actions: code_actions,
4509 },
4510 selected_item: Default::default(),
4511 scroll_handle: UniformListScrollHandle::default(),
4512 deployed_from_indicator,
4513 }));
4514 if spawn_straight_away {
4515 if let Some(task) = editor.confirm_code_action(
4516 &ConfirmCodeAction { item_ix: Some(0) },
4517 cx,
4518 ) {
4519 cx.notify();
4520 return task;
4521 }
4522 }
4523 cx.notify();
4524 Task::ready(Ok(()))
4525 })
4526 .ok()
4527 {
4528 task.await
4529 } else {
4530 Ok(())
4531 }
4532 }))
4533 } else {
4534 Some(Task::ready(Ok(())))
4535 }
4536 })?;
4537 if let Some(task) = spawned_test_task {
4538 task.await?;
4539 }
4540
4541 Ok::<_, anyhow::Error>(())
4542 })
4543 .detach_and_log_err(cx);
4544 }
4545
4546 pub fn confirm_code_action(
4547 &mut self,
4548 action: &ConfirmCodeAction,
4549 cx: &mut ViewContext<Self>,
4550 ) -> Option<Task<Result<()>>> {
4551 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4552 menu
4553 } else {
4554 return None;
4555 };
4556 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4557 let action = actions_menu.actions.get(action_ix)?;
4558 let title = action.label();
4559 let buffer = actions_menu.buffer;
4560 let workspace = self.workspace()?;
4561
4562 match action {
4563 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4564 workspace.update(cx, |workspace, cx| {
4565 workspace::tasks::schedule_resolved_task(
4566 workspace,
4567 task_source_kind,
4568 resolved_task,
4569 false,
4570 cx,
4571 );
4572
4573 Some(Task::ready(Ok(())))
4574 })
4575 }
4576 CodeActionsItem::CodeAction(action) => {
4577 let apply_code_actions = workspace
4578 .read(cx)
4579 .project()
4580 .clone()
4581 .update(cx, |project, cx| {
4582 project.apply_code_action(buffer, action, true, cx)
4583 });
4584 let workspace = workspace.downgrade();
4585 Some(cx.spawn(|editor, cx| async move {
4586 let project_transaction = apply_code_actions.await?;
4587 Self::open_project_transaction(
4588 &editor,
4589 workspace,
4590 project_transaction,
4591 title,
4592 cx,
4593 )
4594 .await
4595 }))
4596 }
4597 }
4598 }
4599
4600 pub async fn open_project_transaction(
4601 this: &WeakView<Editor>,
4602 workspace: WeakView<Workspace>,
4603 transaction: ProjectTransaction,
4604 title: String,
4605 mut cx: AsyncWindowContext,
4606 ) -> Result<()> {
4607 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4608
4609 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4610 cx.update(|cx| {
4611 entries.sort_unstable_by_key(|(buffer, _)| {
4612 buffer.read(cx).file().map(|f| f.path().clone())
4613 });
4614 })?;
4615
4616 // If the project transaction's edits are all contained within this editor, then
4617 // avoid opening a new editor to display them.
4618
4619 if let Some((buffer, transaction)) = entries.first() {
4620 if entries.len() == 1 {
4621 let excerpt = this.update(&mut cx, |editor, cx| {
4622 editor
4623 .buffer()
4624 .read(cx)
4625 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4626 })?;
4627 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4628 if excerpted_buffer == *buffer {
4629 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4630 let excerpt_range = excerpt_range.to_offset(buffer);
4631 buffer
4632 .edited_ranges_for_transaction::<usize>(transaction)
4633 .all(|range| {
4634 excerpt_range.start <= range.start
4635 && excerpt_range.end >= range.end
4636 })
4637 })?;
4638
4639 if all_edits_within_excerpt {
4640 return Ok(());
4641 }
4642 }
4643 }
4644 }
4645 } else {
4646 return Ok(());
4647 }
4648
4649 let mut ranges_to_highlight = Vec::new();
4650 let excerpt_buffer = cx.new_model(|cx| {
4651 let mut multibuffer =
4652 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4653 for (buffer_handle, transaction) in &entries {
4654 let buffer = buffer_handle.read(cx);
4655 ranges_to_highlight.extend(
4656 multibuffer.push_excerpts_with_context_lines(
4657 buffer_handle.clone(),
4658 buffer
4659 .edited_ranges_for_transaction::<usize>(transaction)
4660 .collect(),
4661 DEFAULT_MULTIBUFFER_CONTEXT,
4662 cx,
4663 ),
4664 );
4665 }
4666 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4667 multibuffer
4668 })?;
4669
4670 workspace.update(&mut cx, |workspace, cx| {
4671 let project = workspace.project().clone();
4672 let editor =
4673 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4674 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4675 editor.update(cx, |editor, cx| {
4676 editor.highlight_background::<Self>(
4677 &ranges_to_highlight,
4678 |theme| theme.editor_highlighted_line_background,
4679 cx,
4680 );
4681 });
4682 })?;
4683
4684 Ok(())
4685 }
4686
4687 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4688 let project = self.project.clone()?;
4689 let buffer = self.buffer.read(cx);
4690 let newest_selection = self.selections.newest_anchor().clone();
4691 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4692 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4693 if start_buffer != end_buffer {
4694 return None;
4695 }
4696
4697 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4698 cx.background_executor()
4699 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4700 .await;
4701
4702 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4703 project.code_actions(&start_buffer, start..end, cx)
4704 }) {
4705 code_actions.await
4706 } else {
4707 Vec::new()
4708 };
4709
4710 this.update(&mut cx, |this, cx| {
4711 this.available_code_actions = if actions.is_empty() {
4712 None
4713 } else {
4714 Some((
4715 Location {
4716 buffer: start_buffer,
4717 range: start..end,
4718 },
4719 actions.into(),
4720 ))
4721 };
4722 cx.notify();
4723 })
4724 .log_err();
4725 }));
4726 None
4727 }
4728
4729 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4730 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4731 self.show_git_blame_inline = false;
4732
4733 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4734 cx.background_executor().timer(delay).await;
4735
4736 this.update(&mut cx, |this, cx| {
4737 this.show_git_blame_inline = true;
4738 cx.notify();
4739 })
4740 .log_err();
4741 }));
4742 }
4743 }
4744
4745 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4746 if self.pending_rename.is_some() {
4747 return None;
4748 }
4749
4750 let project = self.project.clone()?;
4751 let buffer = self.buffer.read(cx);
4752 let newest_selection = self.selections.newest_anchor().clone();
4753 let cursor_position = newest_selection.head();
4754 let (cursor_buffer, cursor_buffer_position) =
4755 buffer.text_anchor_for_position(cursor_position, cx)?;
4756 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4757 if cursor_buffer != tail_buffer {
4758 return None;
4759 }
4760
4761 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4762 cx.background_executor()
4763 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4764 .await;
4765
4766 let highlights = if let Some(highlights) = project
4767 .update(&mut cx, |project, cx| {
4768 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4769 })
4770 .log_err()
4771 {
4772 highlights.await.log_err()
4773 } else {
4774 None
4775 };
4776
4777 if let Some(highlights) = highlights {
4778 this.update(&mut cx, |this, cx| {
4779 if this.pending_rename.is_some() {
4780 return;
4781 }
4782
4783 let buffer_id = cursor_position.buffer_id;
4784 let buffer = this.buffer.read(cx);
4785 if !buffer
4786 .text_anchor_for_position(cursor_position, cx)
4787 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4788 {
4789 return;
4790 }
4791
4792 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4793 let mut write_ranges = Vec::new();
4794 let mut read_ranges = Vec::new();
4795 for highlight in highlights {
4796 for (excerpt_id, excerpt_range) in
4797 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4798 {
4799 let start = highlight
4800 .range
4801 .start
4802 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4803 let end = highlight
4804 .range
4805 .end
4806 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4807 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4808 continue;
4809 }
4810
4811 let range = Anchor {
4812 buffer_id,
4813 excerpt_id: excerpt_id,
4814 text_anchor: start,
4815 }..Anchor {
4816 buffer_id,
4817 excerpt_id,
4818 text_anchor: end,
4819 };
4820 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4821 write_ranges.push(range);
4822 } else {
4823 read_ranges.push(range);
4824 }
4825 }
4826 }
4827
4828 this.highlight_background::<DocumentHighlightRead>(
4829 &read_ranges,
4830 |theme| theme.editor_document_highlight_read_background,
4831 cx,
4832 );
4833 this.highlight_background::<DocumentHighlightWrite>(
4834 &write_ranges,
4835 |theme| theme.editor_document_highlight_write_background,
4836 cx,
4837 );
4838 cx.notify();
4839 })
4840 .log_err();
4841 }
4842 }));
4843 None
4844 }
4845
4846 fn refresh_inline_completion(
4847 &mut self,
4848 debounce: bool,
4849 cx: &mut ViewContext<Self>,
4850 ) -> Option<()> {
4851 let provider = self.inline_completion_provider()?;
4852 let cursor = self.selections.newest_anchor().head();
4853 let (buffer, cursor_buffer_position) =
4854 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4855 if !self.show_inline_completions
4856 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4857 {
4858 self.discard_inline_completion(false, cx);
4859 return None;
4860 }
4861
4862 self.update_visible_inline_completion(cx);
4863 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4864 Some(())
4865 }
4866
4867 fn cycle_inline_completion(
4868 &mut self,
4869 direction: Direction,
4870 cx: &mut ViewContext<Self>,
4871 ) -> Option<()> {
4872 let provider = self.inline_completion_provider()?;
4873 let cursor = self.selections.newest_anchor().head();
4874 let (buffer, cursor_buffer_position) =
4875 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4876 if !self.show_inline_completions
4877 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4878 {
4879 return None;
4880 }
4881
4882 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4883 self.update_visible_inline_completion(cx);
4884
4885 Some(())
4886 }
4887
4888 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4889 if !self.has_active_inline_completion(cx) {
4890 self.refresh_inline_completion(false, cx);
4891 return;
4892 }
4893
4894 self.update_visible_inline_completion(cx);
4895 }
4896
4897 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4898 self.show_cursor_names(cx);
4899 }
4900
4901 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4902 self.show_cursor_names = true;
4903 cx.notify();
4904 cx.spawn(|this, mut cx| async move {
4905 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4906 this.update(&mut cx, |this, cx| {
4907 this.show_cursor_names = false;
4908 cx.notify()
4909 })
4910 .ok()
4911 })
4912 .detach();
4913 }
4914
4915 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4916 if self.has_active_inline_completion(cx) {
4917 self.cycle_inline_completion(Direction::Next, cx);
4918 } else {
4919 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4920 if is_copilot_disabled {
4921 cx.propagate();
4922 }
4923 }
4924 }
4925
4926 pub fn previous_inline_completion(
4927 &mut self,
4928 _: &PreviousInlineCompletion,
4929 cx: &mut ViewContext<Self>,
4930 ) {
4931 if self.has_active_inline_completion(cx) {
4932 self.cycle_inline_completion(Direction::Prev, cx);
4933 } else {
4934 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4935 if is_copilot_disabled {
4936 cx.propagate();
4937 }
4938 }
4939 }
4940
4941 pub fn accept_inline_completion(
4942 &mut self,
4943 _: &AcceptInlineCompletion,
4944 cx: &mut ViewContext<Self>,
4945 ) {
4946 let Some((completion, delete_range)) = self.take_active_inline_completion(cx) else {
4947 return;
4948 };
4949 if let Some(provider) = self.inline_completion_provider() {
4950 provider.accept(cx);
4951 }
4952
4953 cx.emit(EditorEvent::InputHandled {
4954 utf16_range_to_replace: None,
4955 text: completion.text.to_string().into(),
4956 });
4957
4958 if let Some(range) = delete_range {
4959 self.change_selections(None, cx, |s| s.select_ranges([range]))
4960 }
4961 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4962 self.refresh_inline_completion(true, cx);
4963 cx.notify();
4964 }
4965
4966 pub fn accept_partial_inline_completion(
4967 &mut self,
4968 _: &AcceptPartialInlineCompletion,
4969 cx: &mut ViewContext<Self>,
4970 ) {
4971 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4972 if let Some((completion, delete_range)) = self.take_active_inline_completion(cx) {
4973 let mut partial_completion = completion
4974 .text
4975 .chars()
4976 .by_ref()
4977 .take_while(|c| c.is_alphabetic())
4978 .collect::<String>();
4979 if partial_completion.is_empty() {
4980 partial_completion = completion
4981 .text
4982 .chars()
4983 .by_ref()
4984 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4985 .collect::<String>();
4986 }
4987
4988 cx.emit(EditorEvent::InputHandled {
4989 utf16_range_to_replace: None,
4990 text: partial_completion.clone().into(),
4991 });
4992
4993 if let Some(range) = delete_range {
4994 self.change_selections(None, cx, |s| s.select_ranges([range]))
4995 }
4996 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4997
4998 self.refresh_inline_completion(true, cx);
4999 cx.notify();
5000 }
5001 }
5002 }
5003
5004 fn discard_inline_completion(
5005 &mut self,
5006 should_report_inline_completion_event: bool,
5007 cx: &mut ViewContext<Self>,
5008 ) -> bool {
5009 if let Some(provider) = self.inline_completion_provider() {
5010 provider.discard(should_report_inline_completion_event, cx);
5011 }
5012
5013 self.take_active_inline_completion(cx).is_some()
5014 }
5015
5016 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5017 if let Some(completion) = self.active_inline_completion.as_ref() {
5018 let buffer = self.buffer.read(cx).read(cx);
5019 completion.0.position.is_valid(&buffer)
5020 } else {
5021 false
5022 }
5023 }
5024
5025 fn take_active_inline_completion(
5026 &mut self,
5027 cx: &mut ViewContext<Self>,
5028 ) -> Option<(Inlay, Option<Range<Anchor>>)> {
5029 let completion = self.active_inline_completion.take()?;
5030 self.display_map.update(cx, |map, cx| {
5031 map.splice_inlays(vec![completion.0.id], Default::default(), cx);
5032 });
5033 let buffer = self.buffer.read(cx).read(cx);
5034
5035 if completion.0.position.is_valid(&buffer) {
5036 Some(completion)
5037 } else {
5038 None
5039 }
5040 }
5041
5042 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5043 let selection = self.selections.newest_anchor();
5044 let cursor = selection.head();
5045
5046 let excerpt_id = cursor.excerpt_id;
5047
5048 if self.context_menu.read().is_none()
5049 && self.completion_tasks.is_empty()
5050 && selection.start == selection.end
5051 {
5052 if let Some(provider) = self.inline_completion_provider() {
5053 if let Some((buffer, cursor_buffer_position)) =
5054 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5055 {
5056 if let Some((text, text_anchor_range)) =
5057 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5058 {
5059 let text = Rope::from(text);
5060 let mut to_remove = Vec::new();
5061 if let Some(completion) = self.active_inline_completion.take() {
5062 to_remove.push(completion.0.id);
5063 }
5064
5065 let completion_inlay =
5066 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
5067
5068 let multibuffer_anchor_range = text_anchor_range.and_then(|range| {
5069 let snapshot = self.buffer.read(cx).snapshot(cx);
5070 Some(
5071 snapshot.anchor_in_excerpt(excerpt_id, range.start)?
5072 ..snapshot.anchor_in_excerpt(excerpt_id, range.end)?,
5073 )
5074 });
5075 self.active_inline_completion =
5076 Some((completion_inlay.clone(), multibuffer_anchor_range));
5077
5078 self.display_map.update(cx, move |map, cx| {
5079 map.splice_inlays(to_remove, vec![completion_inlay], cx)
5080 });
5081 cx.notify();
5082 return;
5083 }
5084 }
5085 }
5086 }
5087
5088 self.discard_inline_completion(false, cx);
5089 }
5090
5091 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5092 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5093 }
5094
5095 fn render_code_actions_indicator(
5096 &self,
5097 _style: &EditorStyle,
5098 row: DisplayRow,
5099 is_active: bool,
5100 cx: &mut ViewContext<Self>,
5101 ) -> Option<IconButton> {
5102 if self.available_code_actions.is_some() {
5103 Some(
5104 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5105 .shape(ui::IconButtonShape::Square)
5106 .icon_size(IconSize::XSmall)
5107 .icon_color(Color::Muted)
5108 .selected(is_active)
5109 .on_click(cx.listener(move |editor, _e, cx| {
5110 editor.focus(cx);
5111 editor.toggle_code_actions(
5112 &ToggleCodeActions {
5113 deployed_from_indicator: Some(row),
5114 },
5115 cx,
5116 );
5117 })),
5118 )
5119 } else {
5120 None
5121 }
5122 }
5123
5124 fn clear_tasks(&mut self) {
5125 self.tasks.clear()
5126 }
5127
5128 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5129 if let Some(_) = self.tasks.insert(key, value) {
5130 // This case should hopefully be rare, but just in case...
5131 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5132 }
5133 }
5134
5135 fn render_run_indicator(
5136 &self,
5137 _style: &EditorStyle,
5138 is_active: bool,
5139 row: DisplayRow,
5140 cx: &mut ViewContext<Self>,
5141 ) -> IconButton {
5142 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5143 .shape(ui::IconButtonShape::Square)
5144 .icon_size(IconSize::XSmall)
5145 .icon_color(Color::Muted)
5146 .selected(is_active)
5147 .on_click(cx.listener(move |editor, _e, cx| {
5148 editor.focus(cx);
5149 editor.toggle_code_actions(
5150 &ToggleCodeActions {
5151 deployed_from_indicator: Some(row),
5152 },
5153 cx,
5154 );
5155 }))
5156 }
5157
5158 fn close_hunk_diff_button(
5159 &self,
5160 hunk: HoveredHunk,
5161 row: DisplayRow,
5162 cx: &mut ViewContext<Self>,
5163 ) -> IconButton {
5164 IconButton::new(
5165 ("close_hunk_diff_indicator", row.0 as usize),
5166 ui::IconName::Close,
5167 )
5168 .shape(ui::IconButtonShape::Square)
5169 .icon_size(IconSize::XSmall)
5170 .icon_color(Color::Muted)
5171 .tooltip(|cx| Tooltip::for_action("Close hunk diff", &ToggleHunkDiff, cx))
5172 .on_click(cx.listener(move |editor, _e, cx| editor.toggle_hovered_hunk(&hunk, cx)))
5173 }
5174
5175 pub fn context_menu_visible(&self) -> bool {
5176 self.context_menu
5177 .read()
5178 .as_ref()
5179 .map_or(false, |menu| menu.visible())
5180 }
5181
5182 fn render_context_menu(
5183 &self,
5184 cursor_position: DisplayPoint,
5185 style: &EditorStyle,
5186 max_height: Pixels,
5187 cx: &mut ViewContext<Editor>,
5188 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5189 self.context_menu.read().as_ref().map(|menu| {
5190 menu.render(
5191 cursor_position,
5192 style,
5193 max_height,
5194 self.workspace.as_ref().map(|(w, _)| w.clone()),
5195 cx,
5196 )
5197 })
5198 }
5199
5200 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5201 cx.notify();
5202 self.completion_tasks.clear();
5203 let context_menu = self.context_menu.write().take();
5204 if context_menu.is_some() {
5205 self.update_visible_inline_completion(cx);
5206 }
5207 context_menu
5208 }
5209
5210 pub fn insert_snippet(
5211 &mut self,
5212 insertion_ranges: &[Range<usize>],
5213 snippet: Snippet,
5214 cx: &mut ViewContext<Self>,
5215 ) -> Result<()> {
5216 struct Tabstop<T> {
5217 is_end_tabstop: bool,
5218 ranges: Vec<Range<T>>,
5219 }
5220
5221 let tabstops = self.buffer.update(cx, |buffer, cx| {
5222 let snippet_text: Arc<str> = snippet.text.clone().into();
5223 buffer.edit(
5224 insertion_ranges
5225 .iter()
5226 .cloned()
5227 .map(|range| (range, snippet_text.clone())),
5228 Some(AutoindentMode::EachLine),
5229 cx,
5230 );
5231
5232 let snapshot = &*buffer.read(cx);
5233 let snippet = &snippet;
5234 snippet
5235 .tabstops
5236 .iter()
5237 .map(|tabstop| {
5238 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5239 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5240 });
5241 let mut tabstop_ranges = tabstop
5242 .iter()
5243 .flat_map(|tabstop_range| {
5244 let mut delta = 0_isize;
5245 insertion_ranges.iter().map(move |insertion_range| {
5246 let insertion_start = insertion_range.start as isize + delta;
5247 delta +=
5248 snippet.text.len() as isize - insertion_range.len() as isize;
5249
5250 let start = ((insertion_start + tabstop_range.start) as usize)
5251 .min(snapshot.len());
5252 let end = ((insertion_start + tabstop_range.end) as usize)
5253 .min(snapshot.len());
5254 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5255 })
5256 })
5257 .collect::<Vec<_>>();
5258 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5259
5260 Tabstop {
5261 is_end_tabstop,
5262 ranges: tabstop_ranges,
5263 }
5264 })
5265 .collect::<Vec<_>>()
5266 });
5267 if let Some(tabstop) = tabstops.first() {
5268 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5269 s.select_ranges(tabstop.ranges.iter().cloned());
5270 });
5271
5272 // If we're already at the last tabstop and it's at the end of the snippet,
5273 // we're done, we don't need to keep the state around.
5274 if !tabstop.is_end_tabstop {
5275 let ranges = tabstops
5276 .into_iter()
5277 .map(|tabstop| tabstop.ranges)
5278 .collect::<Vec<_>>();
5279 self.snippet_stack.push(SnippetState {
5280 active_index: 0,
5281 ranges,
5282 });
5283 }
5284
5285 // Check whether the just-entered snippet ends with an auto-closable bracket.
5286 if self.autoclose_regions.is_empty() {
5287 let snapshot = self.buffer.read(cx).snapshot(cx);
5288 for selection in &mut self.selections.all::<Point>(cx) {
5289 let selection_head = selection.head();
5290 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5291 continue;
5292 };
5293
5294 let mut bracket_pair = None;
5295 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5296 let prev_chars = snapshot
5297 .reversed_chars_at(selection_head)
5298 .collect::<String>();
5299 for (pair, enabled) in scope.brackets() {
5300 if enabled
5301 && pair.close
5302 && prev_chars.starts_with(pair.start.as_str())
5303 && next_chars.starts_with(pair.end.as_str())
5304 {
5305 bracket_pair = Some(pair.clone());
5306 break;
5307 }
5308 }
5309 if let Some(pair) = bracket_pair {
5310 let start = snapshot.anchor_after(selection_head);
5311 let end = snapshot.anchor_after(selection_head);
5312 self.autoclose_regions.push(AutocloseRegion {
5313 selection_id: selection.id,
5314 range: start..end,
5315 pair,
5316 });
5317 }
5318 }
5319 }
5320 }
5321 Ok(())
5322 }
5323
5324 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5325 self.move_to_snippet_tabstop(Bias::Right, cx)
5326 }
5327
5328 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5329 self.move_to_snippet_tabstop(Bias::Left, cx)
5330 }
5331
5332 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5333 if let Some(mut snippet) = self.snippet_stack.pop() {
5334 match bias {
5335 Bias::Left => {
5336 if snippet.active_index > 0 {
5337 snippet.active_index -= 1;
5338 } else {
5339 self.snippet_stack.push(snippet);
5340 return false;
5341 }
5342 }
5343 Bias::Right => {
5344 if snippet.active_index + 1 < snippet.ranges.len() {
5345 snippet.active_index += 1;
5346 } else {
5347 self.snippet_stack.push(snippet);
5348 return false;
5349 }
5350 }
5351 }
5352 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5353 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5354 s.select_anchor_ranges(current_ranges.iter().cloned())
5355 });
5356 // If snippet state is not at the last tabstop, push it back on the stack
5357 if snippet.active_index + 1 < snippet.ranges.len() {
5358 self.snippet_stack.push(snippet);
5359 }
5360 return true;
5361 }
5362 }
5363
5364 false
5365 }
5366
5367 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5368 self.transact(cx, |this, cx| {
5369 this.select_all(&SelectAll, cx);
5370 this.insert("", cx);
5371 });
5372 }
5373
5374 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5375 self.transact(cx, |this, cx| {
5376 this.select_autoclose_pair(cx);
5377 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5378 if !this.linked_edit_ranges.is_empty() {
5379 let selections = this.selections.all::<MultiBufferPoint>(cx);
5380 let snapshot = this.buffer.read(cx).snapshot(cx);
5381
5382 for selection in selections.iter() {
5383 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5384 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5385 if selection_start.buffer_id != selection_end.buffer_id {
5386 continue;
5387 }
5388 if let Some(ranges) =
5389 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5390 {
5391 for (buffer, entries) in ranges {
5392 linked_ranges.entry(buffer).or_default().extend(entries);
5393 }
5394 }
5395 }
5396 }
5397
5398 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5399 if !this.selections.line_mode {
5400 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5401 for selection in &mut selections {
5402 if selection.is_empty() {
5403 let old_head = selection.head();
5404 let mut new_head =
5405 movement::left(&display_map, old_head.to_display_point(&display_map))
5406 .to_point(&display_map);
5407 if let Some((buffer, line_buffer_range)) = display_map
5408 .buffer_snapshot
5409 .buffer_line_for_row(MultiBufferRow(old_head.row))
5410 {
5411 let indent_size =
5412 buffer.indent_size_for_line(line_buffer_range.start.row);
5413 let indent_len = match indent_size.kind {
5414 IndentKind::Space => {
5415 buffer.settings_at(line_buffer_range.start, cx).tab_size
5416 }
5417 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5418 };
5419 if old_head.column <= indent_size.len && old_head.column > 0 {
5420 let indent_len = indent_len.get();
5421 new_head = cmp::min(
5422 new_head,
5423 MultiBufferPoint::new(
5424 old_head.row,
5425 ((old_head.column - 1) / indent_len) * indent_len,
5426 ),
5427 );
5428 }
5429 }
5430
5431 selection.set_head(new_head, SelectionGoal::None);
5432 }
5433 }
5434 }
5435
5436 this.signature_help_state.set_backspace_pressed(true);
5437 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5438 this.insert("", cx);
5439 let empty_str: Arc<str> = Arc::from("");
5440 for (buffer, edits) in linked_ranges {
5441 let snapshot = buffer.read(cx).snapshot();
5442 use text::ToPoint as TP;
5443
5444 let edits = edits
5445 .into_iter()
5446 .map(|range| {
5447 let end_point = TP::to_point(&range.end, &snapshot);
5448 let mut start_point = TP::to_point(&range.start, &snapshot);
5449
5450 if end_point == start_point {
5451 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5452 .saturating_sub(1);
5453 start_point = TP::to_point(&offset, &snapshot);
5454 };
5455
5456 (start_point..end_point, empty_str.clone())
5457 })
5458 .sorted_by_key(|(range, _)| range.start)
5459 .collect::<Vec<_>>();
5460 buffer.update(cx, |this, cx| {
5461 this.edit(edits, None, cx);
5462 })
5463 }
5464 this.refresh_inline_completion(true, cx);
5465 linked_editing_ranges::refresh_linked_ranges(this, cx);
5466 });
5467 }
5468
5469 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5470 self.transact(cx, |this, cx| {
5471 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5472 let line_mode = s.line_mode;
5473 s.move_with(|map, selection| {
5474 if selection.is_empty() && !line_mode {
5475 let cursor = movement::right(map, selection.head());
5476 selection.end = cursor;
5477 selection.reversed = true;
5478 selection.goal = SelectionGoal::None;
5479 }
5480 })
5481 });
5482 this.insert("", cx);
5483 this.refresh_inline_completion(true, cx);
5484 });
5485 }
5486
5487 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5488 if self.move_to_prev_snippet_tabstop(cx) {
5489 return;
5490 }
5491
5492 self.outdent(&Outdent, cx);
5493 }
5494
5495 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5496 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5497 return;
5498 }
5499
5500 let mut selections = self.selections.all_adjusted(cx);
5501 let buffer = self.buffer.read(cx);
5502 let snapshot = buffer.snapshot(cx);
5503 let rows_iter = selections.iter().map(|s| s.head().row);
5504 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5505
5506 let mut edits = Vec::new();
5507 let mut prev_edited_row = 0;
5508 let mut row_delta = 0;
5509 for selection in &mut selections {
5510 if selection.start.row != prev_edited_row {
5511 row_delta = 0;
5512 }
5513 prev_edited_row = selection.end.row;
5514
5515 // If the selection is non-empty, then increase the indentation of the selected lines.
5516 if !selection.is_empty() {
5517 row_delta =
5518 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5519 continue;
5520 }
5521
5522 // If the selection is empty and the cursor is in the leading whitespace before the
5523 // suggested indentation, then auto-indent the line.
5524 let cursor = selection.head();
5525 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5526 if let Some(suggested_indent) =
5527 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5528 {
5529 if cursor.column < suggested_indent.len
5530 && cursor.column <= current_indent.len
5531 && current_indent.len <= suggested_indent.len
5532 {
5533 selection.start = Point::new(cursor.row, suggested_indent.len);
5534 selection.end = selection.start;
5535 if row_delta == 0 {
5536 edits.extend(Buffer::edit_for_indent_size_adjustment(
5537 cursor.row,
5538 current_indent,
5539 suggested_indent,
5540 ));
5541 row_delta = suggested_indent.len - current_indent.len;
5542 }
5543 continue;
5544 }
5545 }
5546
5547 // Otherwise, insert a hard or soft tab.
5548 let settings = buffer.settings_at(cursor, cx);
5549 let tab_size = if settings.hard_tabs {
5550 IndentSize::tab()
5551 } else {
5552 let tab_size = settings.tab_size.get();
5553 let char_column = snapshot
5554 .text_for_range(Point::new(cursor.row, 0)..cursor)
5555 .flat_map(str::chars)
5556 .count()
5557 + row_delta as usize;
5558 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5559 IndentSize::spaces(chars_to_next_tab_stop)
5560 };
5561 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5562 selection.end = selection.start;
5563 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5564 row_delta += tab_size.len;
5565 }
5566
5567 self.transact(cx, |this, cx| {
5568 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5569 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5570 this.refresh_inline_completion(true, cx);
5571 });
5572 }
5573
5574 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5575 if self.read_only(cx) {
5576 return;
5577 }
5578 let mut selections = self.selections.all::<Point>(cx);
5579 let mut prev_edited_row = 0;
5580 let mut row_delta = 0;
5581 let mut edits = Vec::new();
5582 let buffer = self.buffer.read(cx);
5583 let snapshot = buffer.snapshot(cx);
5584 for selection in &mut selections {
5585 if selection.start.row != prev_edited_row {
5586 row_delta = 0;
5587 }
5588 prev_edited_row = selection.end.row;
5589
5590 row_delta =
5591 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5592 }
5593
5594 self.transact(cx, |this, cx| {
5595 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5596 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5597 });
5598 }
5599
5600 fn indent_selection(
5601 buffer: &MultiBuffer,
5602 snapshot: &MultiBufferSnapshot,
5603 selection: &mut Selection<Point>,
5604 edits: &mut Vec<(Range<Point>, String)>,
5605 delta_for_start_row: u32,
5606 cx: &AppContext,
5607 ) -> u32 {
5608 let settings = buffer.settings_at(selection.start, cx);
5609 let tab_size = settings.tab_size.get();
5610 let indent_kind = if settings.hard_tabs {
5611 IndentKind::Tab
5612 } else {
5613 IndentKind::Space
5614 };
5615 let mut start_row = selection.start.row;
5616 let mut end_row = selection.end.row + 1;
5617
5618 // If a selection ends at the beginning of a line, don't indent
5619 // that last line.
5620 if selection.end.column == 0 && selection.end.row > selection.start.row {
5621 end_row -= 1;
5622 }
5623
5624 // Avoid re-indenting a row that has already been indented by a
5625 // previous selection, but still update this selection's column
5626 // to reflect that indentation.
5627 if delta_for_start_row > 0 {
5628 start_row += 1;
5629 selection.start.column += delta_for_start_row;
5630 if selection.end.row == selection.start.row {
5631 selection.end.column += delta_for_start_row;
5632 }
5633 }
5634
5635 let mut delta_for_end_row = 0;
5636 let has_multiple_rows = start_row + 1 != end_row;
5637 for row in start_row..end_row {
5638 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5639 let indent_delta = match (current_indent.kind, indent_kind) {
5640 (IndentKind::Space, IndentKind::Space) => {
5641 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5642 IndentSize::spaces(columns_to_next_tab_stop)
5643 }
5644 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5645 (_, IndentKind::Tab) => IndentSize::tab(),
5646 };
5647
5648 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5649 0
5650 } else {
5651 selection.start.column
5652 };
5653 let row_start = Point::new(row, start);
5654 edits.push((
5655 row_start..row_start,
5656 indent_delta.chars().collect::<String>(),
5657 ));
5658
5659 // Update this selection's endpoints to reflect the indentation.
5660 if row == selection.start.row {
5661 selection.start.column += indent_delta.len;
5662 }
5663 if row == selection.end.row {
5664 selection.end.column += indent_delta.len;
5665 delta_for_end_row = indent_delta.len;
5666 }
5667 }
5668
5669 if selection.start.row == selection.end.row {
5670 delta_for_start_row + delta_for_end_row
5671 } else {
5672 delta_for_end_row
5673 }
5674 }
5675
5676 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5677 if self.read_only(cx) {
5678 return;
5679 }
5680 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5681 let selections = self.selections.all::<Point>(cx);
5682 let mut deletion_ranges = Vec::new();
5683 let mut last_outdent = None;
5684 {
5685 let buffer = self.buffer.read(cx);
5686 let snapshot = buffer.snapshot(cx);
5687 for selection in &selections {
5688 let settings = buffer.settings_at(selection.start, cx);
5689 let tab_size = settings.tab_size.get();
5690 let mut rows = selection.spanned_rows(false, &display_map);
5691
5692 // Avoid re-outdenting a row that has already been outdented by a
5693 // previous selection.
5694 if let Some(last_row) = last_outdent {
5695 if last_row == rows.start {
5696 rows.start = rows.start.next_row();
5697 }
5698 }
5699 let has_multiple_rows = rows.len() > 1;
5700 for row in rows.iter_rows() {
5701 let indent_size = snapshot.indent_size_for_line(row);
5702 if indent_size.len > 0 {
5703 let deletion_len = match indent_size.kind {
5704 IndentKind::Space => {
5705 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5706 if columns_to_prev_tab_stop == 0 {
5707 tab_size
5708 } else {
5709 columns_to_prev_tab_stop
5710 }
5711 }
5712 IndentKind::Tab => 1,
5713 };
5714 let start = if has_multiple_rows
5715 || deletion_len > selection.start.column
5716 || indent_size.len < selection.start.column
5717 {
5718 0
5719 } else {
5720 selection.start.column - deletion_len
5721 };
5722 deletion_ranges.push(
5723 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5724 );
5725 last_outdent = Some(row);
5726 }
5727 }
5728 }
5729 }
5730
5731 self.transact(cx, |this, cx| {
5732 this.buffer.update(cx, |buffer, cx| {
5733 let empty_str: Arc<str> = "".into();
5734 buffer.edit(
5735 deletion_ranges
5736 .into_iter()
5737 .map(|range| (range, empty_str.clone())),
5738 None,
5739 cx,
5740 );
5741 });
5742 let selections = this.selections.all::<usize>(cx);
5743 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5744 });
5745 }
5746
5747 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5748 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5749 let selections = self.selections.all::<Point>(cx);
5750
5751 let mut new_cursors = Vec::new();
5752 let mut edit_ranges = Vec::new();
5753 let mut selections = selections.iter().peekable();
5754 while let Some(selection) = selections.next() {
5755 let mut rows = selection.spanned_rows(false, &display_map);
5756 let goal_display_column = selection.head().to_display_point(&display_map).column();
5757
5758 // Accumulate contiguous regions of rows that we want to delete.
5759 while let Some(next_selection) = selections.peek() {
5760 let next_rows = next_selection.spanned_rows(false, &display_map);
5761 if next_rows.start <= rows.end {
5762 rows.end = next_rows.end;
5763 selections.next().unwrap();
5764 } else {
5765 break;
5766 }
5767 }
5768
5769 let buffer = &display_map.buffer_snapshot;
5770 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5771 let edit_end;
5772 let cursor_buffer_row;
5773 if buffer.max_point().row >= rows.end.0 {
5774 // If there's a line after the range, delete the \n from the end of the row range
5775 // and position the cursor on the next line.
5776 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5777 cursor_buffer_row = rows.end;
5778 } else {
5779 // If there isn't a line after the range, delete the \n from the line before the
5780 // start of the row range and position the cursor there.
5781 edit_start = edit_start.saturating_sub(1);
5782 edit_end = buffer.len();
5783 cursor_buffer_row = rows.start.previous_row();
5784 }
5785
5786 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5787 *cursor.column_mut() =
5788 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5789
5790 new_cursors.push((
5791 selection.id,
5792 buffer.anchor_after(cursor.to_point(&display_map)),
5793 ));
5794 edit_ranges.push(edit_start..edit_end);
5795 }
5796
5797 self.transact(cx, |this, cx| {
5798 let buffer = this.buffer.update(cx, |buffer, cx| {
5799 let empty_str: Arc<str> = "".into();
5800 buffer.edit(
5801 edit_ranges
5802 .into_iter()
5803 .map(|range| (range, empty_str.clone())),
5804 None,
5805 cx,
5806 );
5807 buffer.snapshot(cx)
5808 });
5809 let new_selections = new_cursors
5810 .into_iter()
5811 .map(|(id, cursor)| {
5812 let cursor = cursor.to_point(&buffer);
5813 Selection {
5814 id,
5815 start: cursor,
5816 end: cursor,
5817 reversed: false,
5818 goal: SelectionGoal::None,
5819 }
5820 })
5821 .collect();
5822
5823 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5824 s.select(new_selections);
5825 });
5826 });
5827 }
5828
5829 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5830 if self.read_only(cx) {
5831 return;
5832 }
5833 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5834 for selection in self.selections.all::<Point>(cx) {
5835 let start = MultiBufferRow(selection.start.row);
5836 let end = if selection.start.row == selection.end.row {
5837 MultiBufferRow(selection.start.row + 1)
5838 } else {
5839 MultiBufferRow(selection.end.row)
5840 };
5841
5842 if let Some(last_row_range) = row_ranges.last_mut() {
5843 if start <= last_row_range.end {
5844 last_row_range.end = end;
5845 continue;
5846 }
5847 }
5848 row_ranges.push(start..end);
5849 }
5850
5851 let snapshot = self.buffer.read(cx).snapshot(cx);
5852 let mut cursor_positions = Vec::new();
5853 for row_range in &row_ranges {
5854 let anchor = snapshot.anchor_before(Point::new(
5855 row_range.end.previous_row().0,
5856 snapshot.line_len(row_range.end.previous_row()),
5857 ));
5858 cursor_positions.push(anchor..anchor);
5859 }
5860
5861 self.transact(cx, |this, cx| {
5862 for row_range in row_ranges.into_iter().rev() {
5863 for row in row_range.iter_rows().rev() {
5864 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5865 let next_line_row = row.next_row();
5866 let indent = snapshot.indent_size_for_line(next_line_row);
5867 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5868
5869 let replace = if snapshot.line_len(next_line_row) > indent.len {
5870 " "
5871 } else {
5872 ""
5873 };
5874
5875 this.buffer.update(cx, |buffer, cx| {
5876 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5877 });
5878 }
5879 }
5880
5881 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5882 s.select_anchor_ranges(cursor_positions)
5883 });
5884 });
5885 }
5886
5887 pub fn sort_lines_case_sensitive(
5888 &mut self,
5889 _: &SortLinesCaseSensitive,
5890 cx: &mut ViewContext<Self>,
5891 ) {
5892 self.manipulate_lines(cx, |lines| lines.sort())
5893 }
5894
5895 pub fn sort_lines_case_insensitive(
5896 &mut self,
5897 _: &SortLinesCaseInsensitive,
5898 cx: &mut ViewContext<Self>,
5899 ) {
5900 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5901 }
5902
5903 pub fn unique_lines_case_insensitive(
5904 &mut self,
5905 _: &UniqueLinesCaseInsensitive,
5906 cx: &mut ViewContext<Self>,
5907 ) {
5908 self.manipulate_lines(cx, |lines| {
5909 let mut seen = HashSet::default();
5910 lines.retain(|line| seen.insert(line.to_lowercase()));
5911 })
5912 }
5913
5914 pub fn unique_lines_case_sensitive(
5915 &mut self,
5916 _: &UniqueLinesCaseSensitive,
5917 cx: &mut ViewContext<Self>,
5918 ) {
5919 self.manipulate_lines(cx, |lines| {
5920 let mut seen = HashSet::default();
5921 lines.retain(|line| seen.insert(*line));
5922 })
5923 }
5924
5925 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5926 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5927 if !revert_changes.is_empty() {
5928 self.transact(cx, |editor, cx| {
5929 editor.revert(revert_changes, cx);
5930 });
5931 }
5932 }
5933
5934 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5935 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5936 let project_path = buffer.read(cx).project_path(cx)?;
5937 let project = self.project.as_ref()?.read(cx);
5938 let entry = project.entry_for_path(&project_path, cx)?;
5939 let abs_path = project.absolute_path(&project_path, cx)?;
5940 let parent = if entry.is_symlink {
5941 abs_path.canonicalize().ok()?
5942 } else {
5943 abs_path
5944 }
5945 .parent()?
5946 .to_path_buf();
5947 Some(parent)
5948 }) {
5949 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5950 }
5951 }
5952
5953 fn gather_revert_changes(
5954 &mut self,
5955 selections: &[Selection<Anchor>],
5956 cx: &mut ViewContext<'_, Editor>,
5957 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5958 let mut revert_changes = HashMap::default();
5959 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
5960 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5961 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
5962 }
5963 revert_changes
5964 }
5965
5966 pub fn prepare_revert_change(
5967 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5968 multi_buffer: &Model<MultiBuffer>,
5969 hunk: &DiffHunk<MultiBufferRow>,
5970 cx: &AppContext,
5971 ) -> Option<()> {
5972 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
5973 let buffer = buffer.read(cx);
5974 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5975 let buffer_snapshot = buffer.snapshot();
5976 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5977 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5978 probe
5979 .0
5980 .start
5981 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5982 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5983 }) {
5984 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5985 Some(())
5986 } else {
5987 None
5988 }
5989 }
5990
5991 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5992 self.manipulate_lines(cx, |lines| lines.reverse())
5993 }
5994
5995 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5996 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5997 }
5998
5999 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6000 where
6001 Fn: FnMut(&mut Vec<&str>),
6002 {
6003 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6004 let buffer = self.buffer.read(cx).snapshot(cx);
6005
6006 let mut edits = Vec::new();
6007
6008 let selections = self.selections.all::<Point>(cx);
6009 let mut selections = selections.iter().peekable();
6010 let mut contiguous_row_selections = Vec::new();
6011 let mut new_selections = Vec::new();
6012 let mut added_lines = 0;
6013 let mut removed_lines = 0;
6014
6015 while let Some(selection) = selections.next() {
6016 let (start_row, end_row) = consume_contiguous_rows(
6017 &mut contiguous_row_selections,
6018 selection,
6019 &display_map,
6020 &mut selections,
6021 );
6022
6023 let start_point = Point::new(start_row.0, 0);
6024 let end_point = Point::new(
6025 end_row.previous_row().0,
6026 buffer.line_len(end_row.previous_row()),
6027 );
6028 let text = buffer
6029 .text_for_range(start_point..end_point)
6030 .collect::<String>();
6031
6032 let mut lines = text.split('\n').collect_vec();
6033
6034 let lines_before = lines.len();
6035 callback(&mut lines);
6036 let lines_after = lines.len();
6037
6038 edits.push((start_point..end_point, lines.join("\n")));
6039
6040 // Selections must change based on added and removed line count
6041 let start_row =
6042 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6043 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6044 new_selections.push(Selection {
6045 id: selection.id,
6046 start: start_row,
6047 end: end_row,
6048 goal: SelectionGoal::None,
6049 reversed: selection.reversed,
6050 });
6051
6052 if lines_after > lines_before {
6053 added_lines += lines_after - lines_before;
6054 } else if lines_before > lines_after {
6055 removed_lines += lines_before - lines_after;
6056 }
6057 }
6058
6059 self.transact(cx, |this, cx| {
6060 let buffer = this.buffer.update(cx, |buffer, cx| {
6061 buffer.edit(edits, None, cx);
6062 buffer.snapshot(cx)
6063 });
6064
6065 // Recalculate offsets on newly edited buffer
6066 let new_selections = new_selections
6067 .iter()
6068 .map(|s| {
6069 let start_point = Point::new(s.start.0, 0);
6070 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6071 Selection {
6072 id: s.id,
6073 start: buffer.point_to_offset(start_point),
6074 end: buffer.point_to_offset(end_point),
6075 goal: s.goal,
6076 reversed: s.reversed,
6077 }
6078 })
6079 .collect();
6080
6081 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6082 s.select(new_selections);
6083 });
6084
6085 this.request_autoscroll(Autoscroll::fit(), cx);
6086 });
6087 }
6088
6089 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6090 self.manipulate_text(cx, |text| text.to_uppercase())
6091 }
6092
6093 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6094 self.manipulate_text(cx, |text| text.to_lowercase())
6095 }
6096
6097 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6098 self.manipulate_text(cx, |text| {
6099 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6100 // https://github.com/rutrum/convert-case/issues/16
6101 text.split('\n')
6102 .map(|line| line.to_case(Case::Title))
6103 .join("\n")
6104 })
6105 }
6106
6107 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6108 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6109 }
6110
6111 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6112 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6113 }
6114
6115 pub fn convert_to_upper_camel_case(
6116 &mut self,
6117 _: &ConvertToUpperCamelCase,
6118 cx: &mut ViewContext<Self>,
6119 ) {
6120 self.manipulate_text(cx, |text| {
6121 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6122 // https://github.com/rutrum/convert-case/issues/16
6123 text.split('\n')
6124 .map(|line| line.to_case(Case::UpperCamel))
6125 .join("\n")
6126 })
6127 }
6128
6129 pub fn convert_to_lower_camel_case(
6130 &mut self,
6131 _: &ConvertToLowerCamelCase,
6132 cx: &mut ViewContext<Self>,
6133 ) {
6134 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6135 }
6136
6137 pub fn convert_to_opposite_case(
6138 &mut self,
6139 _: &ConvertToOppositeCase,
6140 cx: &mut ViewContext<Self>,
6141 ) {
6142 self.manipulate_text(cx, |text| {
6143 text.chars()
6144 .fold(String::with_capacity(text.len()), |mut t, c| {
6145 if c.is_uppercase() {
6146 t.extend(c.to_lowercase());
6147 } else {
6148 t.extend(c.to_uppercase());
6149 }
6150 t
6151 })
6152 })
6153 }
6154
6155 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6156 where
6157 Fn: FnMut(&str) -> String,
6158 {
6159 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6160 let buffer = self.buffer.read(cx).snapshot(cx);
6161
6162 let mut new_selections = Vec::new();
6163 let mut edits = Vec::new();
6164 let mut selection_adjustment = 0i32;
6165
6166 for selection in self.selections.all::<usize>(cx) {
6167 let selection_is_empty = selection.is_empty();
6168
6169 let (start, end) = if selection_is_empty {
6170 let word_range = movement::surrounding_word(
6171 &display_map,
6172 selection.start.to_display_point(&display_map),
6173 );
6174 let start = word_range.start.to_offset(&display_map, Bias::Left);
6175 let end = word_range.end.to_offset(&display_map, Bias::Left);
6176 (start, end)
6177 } else {
6178 (selection.start, selection.end)
6179 };
6180
6181 let text = buffer.text_for_range(start..end).collect::<String>();
6182 let old_length = text.len() as i32;
6183 let text = callback(&text);
6184
6185 new_selections.push(Selection {
6186 start: (start as i32 - selection_adjustment) as usize,
6187 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6188 goal: SelectionGoal::None,
6189 ..selection
6190 });
6191
6192 selection_adjustment += old_length - text.len() as i32;
6193
6194 edits.push((start..end, text));
6195 }
6196
6197 self.transact(cx, |this, cx| {
6198 this.buffer.update(cx, |buffer, cx| {
6199 buffer.edit(edits, None, cx);
6200 });
6201
6202 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6203 s.select(new_selections);
6204 });
6205
6206 this.request_autoscroll(Autoscroll::fit(), cx);
6207 });
6208 }
6209
6210 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6211 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6212 let buffer = &display_map.buffer_snapshot;
6213 let selections = self.selections.all::<Point>(cx);
6214
6215 let mut edits = Vec::new();
6216 let mut selections_iter = selections.iter().peekable();
6217 while let Some(selection) = selections_iter.next() {
6218 // Avoid duplicating the same lines twice.
6219 let mut rows = selection.spanned_rows(false, &display_map);
6220
6221 while let Some(next_selection) = selections_iter.peek() {
6222 let next_rows = next_selection.spanned_rows(false, &display_map);
6223 if next_rows.start < rows.end {
6224 rows.end = next_rows.end;
6225 selections_iter.next().unwrap();
6226 } else {
6227 break;
6228 }
6229 }
6230
6231 // Copy the text from the selected row region and splice it either at the start
6232 // or end of the region.
6233 let start = Point::new(rows.start.0, 0);
6234 let end = Point::new(
6235 rows.end.previous_row().0,
6236 buffer.line_len(rows.end.previous_row()),
6237 );
6238 let text = buffer
6239 .text_for_range(start..end)
6240 .chain(Some("\n"))
6241 .collect::<String>();
6242 let insert_location = if upwards {
6243 Point::new(rows.end.0, 0)
6244 } else {
6245 start
6246 };
6247 edits.push((insert_location..insert_location, text));
6248 }
6249
6250 self.transact(cx, |this, cx| {
6251 this.buffer.update(cx, |buffer, cx| {
6252 buffer.edit(edits, None, cx);
6253 });
6254
6255 this.request_autoscroll(Autoscroll::fit(), cx);
6256 });
6257 }
6258
6259 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6260 self.duplicate_line(true, cx);
6261 }
6262
6263 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6264 self.duplicate_line(false, cx);
6265 }
6266
6267 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6268 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6269 let buffer = self.buffer.read(cx).snapshot(cx);
6270
6271 let mut edits = Vec::new();
6272 let mut unfold_ranges = Vec::new();
6273 let mut refold_ranges = Vec::new();
6274
6275 let selections = self.selections.all::<Point>(cx);
6276 let mut selections = selections.iter().peekable();
6277 let mut contiguous_row_selections = Vec::new();
6278 let mut new_selections = Vec::new();
6279
6280 while let Some(selection) = selections.next() {
6281 // Find all the selections that span a contiguous row range
6282 let (start_row, end_row) = consume_contiguous_rows(
6283 &mut contiguous_row_selections,
6284 selection,
6285 &display_map,
6286 &mut selections,
6287 );
6288
6289 // Move the text spanned by the row range to be before the line preceding the row range
6290 if start_row.0 > 0 {
6291 let range_to_move = Point::new(
6292 start_row.previous_row().0,
6293 buffer.line_len(start_row.previous_row()),
6294 )
6295 ..Point::new(
6296 end_row.previous_row().0,
6297 buffer.line_len(end_row.previous_row()),
6298 );
6299 let insertion_point = display_map
6300 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6301 .0;
6302
6303 // Don't move lines across excerpts
6304 if buffer
6305 .excerpt_boundaries_in_range((
6306 Bound::Excluded(insertion_point),
6307 Bound::Included(range_to_move.end),
6308 ))
6309 .next()
6310 .is_none()
6311 {
6312 let text = buffer
6313 .text_for_range(range_to_move.clone())
6314 .flat_map(|s| s.chars())
6315 .skip(1)
6316 .chain(['\n'])
6317 .collect::<String>();
6318
6319 edits.push((
6320 buffer.anchor_after(range_to_move.start)
6321 ..buffer.anchor_before(range_to_move.end),
6322 String::new(),
6323 ));
6324 let insertion_anchor = buffer.anchor_after(insertion_point);
6325 edits.push((insertion_anchor..insertion_anchor, text));
6326
6327 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6328
6329 // Move selections up
6330 new_selections.extend(contiguous_row_selections.drain(..).map(
6331 |mut selection| {
6332 selection.start.row -= row_delta;
6333 selection.end.row -= row_delta;
6334 selection
6335 },
6336 ));
6337
6338 // Move folds up
6339 unfold_ranges.push(range_to_move.clone());
6340 for fold in display_map.folds_in_range(
6341 buffer.anchor_before(range_to_move.start)
6342 ..buffer.anchor_after(range_to_move.end),
6343 ) {
6344 let mut start = fold.range.start.to_point(&buffer);
6345 let mut end = fold.range.end.to_point(&buffer);
6346 start.row -= row_delta;
6347 end.row -= row_delta;
6348 refold_ranges.push((start..end, fold.placeholder.clone()));
6349 }
6350 }
6351 }
6352
6353 // If we didn't move line(s), preserve the existing selections
6354 new_selections.append(&mut contiguous_row_selections);
6355 }
6356
6357 self.transact(cx, |this, cx| {
6358 this.unfold_ranges(unfold_ranges, true, true, cx);
6359 this.buffer.update(cx, |buffer, cx| {
6360 for (range, text) in edits {
6361 buffer.edit([(range, text)], None, cx);
6362 }
6363 });
6364 this.fold_ranges(refold_ranges, true, cx);
6365 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6366 s.select(new_selections);
6367 })
6368 });
6369 }
6370
6371 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6372 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6373 let buffer = self.buffer.read(cx).snapshot(cx);
6374
6375 let mut edits = Vec::new();
6376 let mut unfold_ranges = Vec::new();
6377 let mut refold_ranges = Vec::new();
6378
6379 let selections = self.selections.all::<Point>(cx);
6380 let mut selections = selections.iter().peekable();
6381 let mut contiguous_row_selections = Vec::new();
6382 let mut new_selections = Vec::new();
6383
6384 while let Some(selection) = selections.next() {
6385 // Find all the selections that span a contiguous row range
6386 let (start_row, end_row) = consume_contiguous_rows(
6387 &mut contiguous_row_selections,
6388 selection,
6389 &display_map,
6390 &mut selections,
6391 );
6392
6393 // Move the text spanned by the row range to be after the last line of the row range
6394 if end_row.0 <= buffer.max_point().row {
6395 let range_to_move =
6396 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6397 let insertion_point = display_map
6398 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6399 .0;
6400
6401 // Don't move lines across excerpt boundaries
6402 if buffer
6403 .excerpt_boundaries_in_range((
6404 Bound::Excluded(range_to_move.start),
6405 Bound::Included(insertion_point),
6406 ))
6407 .next()
6408 .is_none()
6409 {
6410 let mut text = String::from("\n");
6411 text.extend(buffer.text_for_range(range_to_move.clone()));
6412 text.pop(); // Drop trailing newline
6413 edits.push((
6414 buffer.anchor_after(range_to_move.start)
6415 ..buffer.anchor_before(range_to_move.end),
6416 String::new(),
6417 ));
6418 let insertion_anchor = buffer.anchor_after(insertion_point);
6419 edits.push((insertion_anchor..insertion_anchor, text));
6420
6421 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6422
6423 // Move selections down
6424 new_selections.extend(contiguous_row_selections.drain(..).map(
6425 |mut selection| {
6426 selection.start.row += row_delta;
6427 selection.end.row += row_delta;
6428 selection
6429 },
6430 ));
6431
6432 // Move folds down
6433 unfold_ranges.push(range_to_move.clone());
6434 for fold in display_map.folds_in_range(
6435 buffer.anchor_before(range_to_move.start)
6436 ..buffer.anchor_after(range_to_move.end),
6437 ) {
6438 let mut start = fold.range.start.to_point(&buffer);
6439 let mut end = fold.range.end.to_point(&buffer);
6440 start.row += row_delta;
6441 end.row += row_delta;
6442 refold_ranges.push((start..end, fold.placeholder.clone()));
6443 }
6444 }
6445 }
6446
6447 // If we didn't move line(s), preserve the existing selections
6448 new_selections.append(&mut contiguous_row_selections);
6449 }
6450
6451 self.transact(cx, |this, cx| {
6452 this.unfold_ranges(unfold_ranges, true, true, cx);
6453 this.buffer.update(cx, |buffer, cx| {
6454 for (range, text) in edits {
6455 buffer.edit([(range, text)], None, cx);
6456 }
6457 });
6458 this.fold_ranges(refold_ranges, true, cx);
6459 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6460 });
6461 }
6462
6463 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6464 let text_layout_details = &self.text_layout_details(cx);
6465 self.transact(cx, |this, cx| {
6466 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6467 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6468 let line_mode = s.line_mode;
6469 s.move_with(|display_map, selection| {
6470 if !selection.is_empty() || line_mode {
6471 return;
6472 }
6473
6474 let mut head = selection.head();
6475 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6476 if head.column() == display_map.line_len(head.row()) {
6477 transpose_offset = display_map
6478 .buffer_snapshot
6479 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6480 }
6481
6482 if transpose_offset == 0 {
6483 return;
6484 }
6485
6486 *head.column_mut() += 1;
6487 head = display_map.clip_point(head, Bias::Right);
6488 let goal = SelectionGoal::HorizontalPosition(
6489 display_map
6490 .x_for_display_point(head, &text_layout_details)
6491 .into(),
6492 );
6493 selection.collapse_to(head, goal);
6494
6495 let transpose_start = display_map
6496 .buffer_snapshot
6497 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6498 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6499 let transpose_end = display_map
6500 .buffer_snapshot
6501 .clip_offset(transpose_offset + 1, Bias::Right);
6502 if let Some(ch) =
6503 display_map.buffer_snapshot.chars_at(transpose_start).next()
6504 {
6505 edits.push((transpose_start..transpose_offset, String::new()));
6506 edits.push((transpose_end..transpose_end, ch.to_string()));
6507 }
6508 }
6509 });
6510 edits
6511 });
6512 this.buffer
6513 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6514 let selections = this.selections.all::<usize>(cx);
6515 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6516 s.select(selections);
6517 });
6518 });
6519 }
6520
6521 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6522 let mut text = String::new();
6523 let buffer = self.buffer.read(cx).snapshot(cx);
6524 let mut selections = self.selections.all::<Point>(cx);
6525 let mut clipboard_selections = Vec::with_capacity(selections.len());
6526 {
6527 let max_point = buffer.max_point();
6528 let mut is_first = true;
6529 for selection in &mut selections {
6530 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6531 if is_entire_line {
6532 selection.start = Point::new(selection.start.row, 0);
6533 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6534 selection.goal = SelectionGoal::None;
6535 }
6536 if is_first {
6537 is_first = false;
6538 } else {
6539 text += "\n";
6540 }
6541 let mut len = 0;
6542 for chunk in buffer.text_for_range(selection.start..selection.end) {
6543 text.push_str(chunk);
6544 len += chunk.len();
6545 }
6546 clipboard_selections.push(ClipboardSelection {
6547 len,
6548 is_entire_line,
6549 first_line_indent: buffer
6550 .indent_size_for_line(MultiBufferRow(selection.start.row))
6551 .len,
6552 });
6553 }
6554 }
6555
6556 self.transact(cx, |this, cx| {
6557 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6558 s.select(selections);
6559 });
6560 this.insert("", cx);
6561 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6562 });
6563 }
6564
6565 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6566 let selections = self.selections.all::<Point>(cx);
6567 let buffer = self.buffer.read(cx).read(cx);
6568 let mut text = String::new();
6569
6570 let mut clipboard_selections = Vec::with_capacity(selections.len());
6571 {
6572 let max_point = buffer.max_point();
6573 let mut is_first = true;
6574 for selection in selections.iter() {
6575 let mut start = selection.start;
6576 let mut end = selection.end;
6577 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6578 if is_entire_line {
6579 start = Point::new(start.row, 0);
6580 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6581 }
6582 if is_first {
6583 is_first = false;
6584 } else {
6585 text += "\n";
6586 }
6587 let mut len = 0;
6588 for chunk in buffer.text_for_range(start..end) {
6589 text.push_str(chunk);
6590 len += chunk.len();
6591 }
6592 clipboard_selections.push(ClipboardSelection {
6593 len,
6594 is_entire_line,
6595 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6596 });
6597 }
6598 }
6599
6600 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6601 }
6602
6603 pub fn do_paste(
6604 &mut self,
6605 text: &String,
6606 clipboard_selections: Option<Vec<ClipboardSelection>>,
6607 handle_entire_lines: bool,
6608 cx: &mut ViewContext<Self>,
6609 ) {
6610 if self.read_only(cx) {
6611 return;
6612 }
6613
6614 let clipboard_text = Cow::Borrowed(text);
6615
6616 self.transact(cx, |this, cx| {
6617 if let Some(mut clipboard_selections) = clipboard_selections {
6618 let old_selections = this.selections.all::<usize>(cx);
6619 let all_selections_were_entire_line =
6620 clipboard_selections.iter().all(|s| s.is_entire_line);
6621 let first_selection_indent_column =
6622 clipboard_selections.first().map(|s| s.first_line_indent);
6623 if clipboard_selections.len() != old_selections.len() {
6624 clipboard_selections.drain(..);
6625 }
6626
6627 this.buffer.update(cx, |buffer, cx| {
6628 let snapshot = buffer.read(cx);
6629 let mut start_offset = 0;
6630 let mut edits = Vec::new();
6631 let mut original_indent_columns = Vec::new();
6632 for (ix, selection) in old_selections.iter().enumerate() {
6633 let to_insert;
6634 let entire_line;
6635 let original_indent_column;
6636 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6637 let end_offset = start_offset + clipboard_selection.len;
6638 to_insert = &clipboard_text[start_offset..end_offset];
6639 entire_line = clipboard_selection.is_entire_line;
6640 start_offset = end_offset + 1;
6641 original_indent_column = Some(clipboard_selection.first_line_indent);
6642 } else {
6643 to_insert = clipboard_text.as_str();
6644 entire_line = all_selections_were_entire_line;
6645 original_indent_column = first_selection_indent_column
6646 }
6647
6648 // If the corresponding selection was empty when this slice of the
6649 // clipboard text was written, then the entire line containing the
6650 // selection was copied. If this selection is also currently empty,
6651 // then paste the line before the current line of the buffer.
6652 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6653 let column = selection.start.to_point(&snapshot).column as usize;
6654 let line_start = selection.start - column;
6655 line_start..line_start
6656 } else {
6657 selection.range()
6658 };
6659
6660 edits.push((range, to_insert));
6661 original_indent_columns.extend(original_indent_column);
6662 }
6663 drop(snapshot);
6664
6665 buffer.edit(
6666 edits,
6667 Some(AutoindentMode::Block {
6668 original_indent_columns,
6669 }),
6670 cx,
6671 );
6672 });
6673
6674 let selections = this.selections.all::<usize>(cx);
6675 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6676 } else {
6677 this.insert(&clipboard_text, cx);
6678 }
6679 });
6680 }
6681
6682 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6683 if let Some(item) = cx.read_from_clipboard() {
6684 self.do_paste(
6685 item.text(),
6686 item.metadata::<Vec<ClipboardSelection>>(),
6687 true,
6688 cx,
6689 )
6690 };
6691 }
6692
6693 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6694 if self.read_only(cx) {
6695 return;
6696 }
6697
6698 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6699 if let Some((selections, _)) =
6700 self.selection_history.transaction(transaction_id).cloned()
6701 {
6702 self.change_selections(None, cx, |s| {
6703 s.select_anchors(selections.to_vec());
6704 });
6705 }
6706 self.request_autoscroll(Autoscroll::fit(), cx);
6707 self.unmark_text(cx);
6708 self.refresh_inline_completion(true, cx);
6709 cx.emit(EditorEvent::Edited { transaction_id });
6710 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6711 }
6712 }
6713
6714 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6715 if self.read_only(cx) {
6716 return;
6717 }
6718
6719 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6720 if let Some((_, Some(selections))) =
6721 self.selection_history.transaction(transaction_id).cloned()
6722 {
6723 self.change_selections(None, cx, |s| {
6724 s.select_anchors(selections.to_vec());
6725 });
6726 }
6727 self.request_autoscroll(Autoscroll::fit(), cx);
6728 self.unmark_text(cx);
6729 self.refresh_inline_completion(true, cx);
6730 cx.emit(EditorEvent::Edited { transaction_id });
6731 }
6732 }
6733
6734 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6735 self.buffer
6736 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6737 }
6738
6739 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6740 self.buffer
6741 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6742 }
6743
6744 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6745 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6746 let line_mode = s.line_mode;
6747 s.move_with(|map, selection| {
6748 let cursor = if selection.is_empty() && !line_mode {
6749 movement::left(map, selection.start)
6750 } else {
6751 selection.start
6752 };
6753 selection.collapse_to(cursor, SelectionGoal::None);
6754 });
6755 })
6756 }
6757
6758 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6759 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6760 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6761 })
6762 }
6763
6764 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6765 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6766 let line_mode = s.line_mode;
6767 s.move_with(|map, selection| {
6768 let cursor = if selection.is_empty() && !line_mode {
6769 movement::right(map, selection.end)
6770 } else {
6771 selection.end
6772 };
6773 selection.collapse_to(cursor, SelectionGoal::None)
6774 });
6775 })
6776 }
6777
6778 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6779 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6780 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6781 })
6782 }
6783
6784 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6785 if self.take_rename(true, cx).is_some() {
6786 return;
6787 }
6788
6789 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6790 cx.propagate();
6791 return;
6792 }
6793
6794 let text_layout_details = &self.text_layout_details(cx);
6795 let selection_count = self.selections.count();
6796 let first_selection = self.selections.first_anchor();
6797
6798 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6799 let line_mode = s.line_mode;
6800 s.move_with(|map, selection| {
6801 if !selection.is_empty() && !line_mode {
6802 selection.goal = SelectionGoal::None;
6803 }
6804 let (cursor, goal) = movement::up(
6805 map,
6806 selection.start,
6807 selection.goal,
6808 false,
6809 &text_layout_details,
6810 );
6811 selection.collapse_to(cursor, goal);
6812 });
6813 });
6814
6815 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6816 {
6817 cx.propagate();
6818 }
6819 }
6820
6821 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6822 if self.take_rename(true, cx).is_some() {
6823 return;
6824 }
6825
6826 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6827 cx.propagate();
6828 return;
6829 }
6830
6831 let text_layout_details = &self.text_layout_details(cx);
6832
6833 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6834 let line_mode = s.line_mode;
6835 s.move_with(|map, selection| {
6836 if !selection.is_empty() && !line_mode {
6837 selection.goal = SelectionGoal::None;
6838 }
6839 let (cursor, goal) = movement::up_by_rows(
6840 map,
6841 selection.start,
6842 action.lines,
6843 selection.goal,
6844 false,
6845 &text_layout_details,
6846 );
6847 selection.collapse_to(cursor, goal);
6848 });
6849 })
6850 }
6851
6852 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6853 if self.take_rename(true, cx).is_some() {
6854 return;
6855 }
6856
6857 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6858 cx.propagate();
6859 return;
6860 }
6861
6862 let text_layout_details = &self.text_layout_details(cx);
6863
6864 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6865 let line_mode = s.line_mode;
6866 s.move_with(|map, selection| {
6867 if !selection.is_empty() && !line_mode {
6868 selection.goal = SelectionGoal::None;
6869 }
6870 let (cursor, goal) = movement::down_by_rows(
6871 map,
6872 selection.start,
6873 action.lines,
6874 selection.goal,
6875 false,
6876 &text_layout_details,
6877 );
6878 selection.collapse_to(cursor, goal);
6879 });
6880 })
6881 }
6882
6883 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6884 let text_layout_details = &self.text_layout_details(cx);
6885 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6886 s.move_heads_with(|map, head, goal| {
6887 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6888 })
6889 })
6890 }
6891
6892 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6893 let text_layout_details = &self.text_layout_details(cx);
6894 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6895 s.move_heads_with(|map, head, goal| {
6896 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6897 })
6898 })
6899 }
6900
6901 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
6902 let Some(row_count) = self.visible_row_count() else {
6903 return;
6904 };
6905
6906 let text_layout_details = &self.text_layout_details(cx);
6907
6908 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6909 s.move_heads_with(|map, head, goal| {
6910 movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
6911 })
6912 })
6913 }
6914
6915 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6916 if self.take_rename(true, cx).is_some() {
6917 return;
6918 }
6919
6920 if self
6921 .context_menu
6922 .write()
6923 .as_mut()
6924 .map(|menu| menu.select_first(self.project.as_ref(), cx))
6925 .unwrap_or(false)
6926 {
6927 return;
6928 }
6929
6930 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6931 cx.propagate();
6932 return;
6933 }
6934
6935 let Some(row_count) = self.visible_row_count() else {
6936 return;
6937 };
6938
6939 let autoscroll = if action.center_cursor {
6940 Autoscroll::center()
6941 } else {
6942 Autoscroll::fit()
6943 };
6944
6945 let text_layout_details = &self.text_layout_details(cx);
6946
6947 self.change_selections(Some(autoscroll), cx, |s| {
6948 let line_mode = s.line_mode;
6949 s.move_with(|map, selection| {
6950 if !selection.is_empty() && !line_mode {
6951 selection.goal = SelectionGoal::None;
6952 }
6953 let (cursor, goal) = movement::up_by_rows(
6954 map,
6955 selection.end,
6956 row_count,
6957 selection.goal,
6958 false,
6959 &text_layout_details,
6960 );
6961 selection.collapse_to(cursor, goal);
6962 });
6963 });
6964 }
6965
6966 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6967 let text_layout_details = &self.text_layout_details(cx);
6968 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6969 s.move_heads_with(|map, head, goal| {
6970 movement::up(map, head, goal, false, &text_layout_details)
6971 })
6972 })
6973 }
6974
6975 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6976 self.take_rename(true, cx);
6977
6978 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6979 cx.propagate();
6980 return;
6981 }
6982
6983 let text_layout_details = &self.text_layout_details(cx);
6984 let selection_count = self.selections.count();
6985 let first_selection = self.selections.first_anchor();
6986
6987 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6988 let line_mode = s.line_mode;
6989 s.move_with(|map, selection| {
6990 if !selection.is_empty() && !line_mode {
6991 selection.goal = SelectionGoal::None;
6992 }
6993 let (cursor, goal) = movement::down(
6994 map,
6995 selection.end,
6996 selection.goal,
6997 false,
6998 &text_layout_details,
6999 );
7000 selection.collapse_to(cursor, goal);
7001 });
7002 });
7003
7004 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7005 {
7006 cx.propagate();
7007 }
7008 }
7009
7010 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7011 let Some(row_count) = self.visible_row_count() else {
7012 return;
7013 };
7014
7015 let text_layout_details = &self.text_layout_details(cx);
7016
7017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7018 s.move_heads_with(|map, head, goal| {
7019 movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
7020 })
7021 })
7022 }
7023
7024 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7025 if self.take_rename(true, cx).is_some() {
7026 return;
7027 }
7028
7029 if self
7030 .context_menu
7031 .write()
7032 .as_mut()
7033 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7034 .unwrap_or(false)
7035 {
7036 return;
7037 }
7038
7039 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7040 cx.propagate();
7041 return;
7042 }
7043
7044 let Some(row_count) = self.visible_row_count() else {
7045 return;
7046 };
7047
7048 let autoscroll = if action.center_cursor {
7049 Autoscroll::center()
7050 } else {
7051 Autoscroll::fit()
7052 };
7053
7054 let text_layout_details = &self.text_layout_details(cx);
7055 self.change_selections(Some(autoscroll), cx, |s| {
7056 let line_mode = s.line_mode;
7057 s.move_with(|map, selection| {
7058 if !selection.is_empty() && !line_mode {
7059 selection.goal = SelectionGoal::None;
7060 }
7061 let (cursor, goal) = movement::down_by_rows(
7062 map,
7063 selection.end,
7064 row_count,
7065 selection.goal,
7066 false,
7067 &text_layout_details,
7068 );
7069 selection.collapse_to(cursor, goal);
7070 });
7071 });
7072 }
7073
7074 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7075 let text_layout_details = &self.text_layout_details(cx);
7076 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7077 s.move_heads_with(|map, head, goal| {
7078 movement::down(map, head, goal, false, &text_layout_details)
7079 })
7080 });
7081 }
7082
7083 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7084 if let Some(context_menu) = self.context_menu.write().as_mut() {
7085 context_menu.select_first(self.project.as_ref(), cx);
7086 }
7087 }
7088
7089 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7090 if let Some(context_menu) = self.context_menu.write().as_mut() {
7091 context_menu.select_prev(self.project.as_ref(), cx);
7092 }
7093 }
7094
7095 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7096 if let Some(context_menu) = self.context_menu.write().as_mut() {
7097 context_menu.select_next(self.project.as_ref(), cx);
7098 }
7099 }
7100
7101 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7102 if let Some(context_menu) = self.context_menu.write().as_mut() {
7103 context_menu.select_last(self.project.as_ref(), cx);
7104 }
7105 }
7106
7107 pub fn move_to_previous_word_start(
7108 &mut self,
7109 _: &MoveToPreviousWordStart,
7110 cx: &mut ViewContext<Self>,
7111 ) {
7112 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7113 s.move_cursors_with(|map, head, _| {
7114 (
7115 movement::previous_word_start(map, head),
7116 SelectionGoal::None,
7117 )
7118 });
7119 })
7120 }
7121
7122 pub fn move_to_previous_subword_start(
7123 &mut self,
7124 _: &MoveToPreviousSubwordStart,
7125 cx: &mut ViewContext<Self>,
7126 ) {
7127 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7128 s.move_cursors_with(|map, head, _| {
7129 (
7130 movement::previous_subword_start(map, head),
7131 SelectionGoal::None,
7132 )
7133 });
7134 })
7135 }
7136
7137 pub fn select_to_previous_word_start(
7138 &mut self,
7139 _: &SelectToPreviousWordStart,
7140 cx: &mut ViewContext<Self>,
7141 ) {
7142 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7143 s.move_heads_with(|map, head, _| {
7144 (
7145 movement::previous_word_start(map, head),
7146 SelectionGoal::None,
7147 )
7148 });
7149 })
7150 }
7151
7152 pub fn select_to_previous_subword_start(
7153 &mut self,
7154 _: &SelectToPreviousSubwordStart,
7155 cx: &mut ViewContext<Self>,
7156 ) {
7157 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7158 s.move_heads_with(|map, head, _| {
7159 (
7160 movement::previous_subword_start(map, head),
7161 SelectionGoal::None,
7162 )
7163 });
7164 })
7165 }
7166
7167 pub fn delete_to_previous_word_start(
7168 &mut self,
7169 _: &DeleteToPreviousWordStart,
7170 cx: &mut ViewContext<Self>,
7171 ) {
7172 self.transact(cx, |this, cx| {
7173 this.select_autoclose_pair(cx);
7174 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7175 let line_mode = s.line_mode;
7176 s.move_with(|map, selection| {
7177 if selection.is_empty() && !line_mode {
7178 let cursor = movement::previous_word_start(map, selection.head());
7179 selection.set_head(cursor, SelectionGoal::None);
7180 }
7181 });
7182 });
7183 this.insert("", cx);
7184 });
7185 }
7186
7187 pub fn delete_to_previous_subword_start(
7188 &mut self,
7189 _: &DeleteToPreviousSubwordStart,
7190 cx: &mut ViewContext<Self>,
7191 ) {
7192 self.transact(cx, |this, cx| {
7193 this.select_autoclose_pair(cx);
7194 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7195 let line_mode = s.line_mode;
7196 s.move_with(|map, selection| {
7197 if selection.is_empty() && !line_mode {
7198 let cursor = movement::previous_subword_start(map, selection.head());
7199 selection.set_head(cursor, SelectionGoal::None);
7200 }
7201 });
7202 });
7203 this.insert("", cx);
7204 });
7205 }
7206
7207 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7208 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7209 s.move_cursors_with(|map, head, _| {
7210 (movement::next_word_end(map, head), SelectionGoal::None)
7211 });
7212 })
7213 }
7214
7215 pub fn move_to_next_subword_end(
7216 &mut self,
7217 _: &MoveToNextSubwordEnd,
7218 cx: &mut ViewContext<Self>,
7219 ) {
7220 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7221 s.move_cursors_with(|map, head, _| {
7222 (movement::next_subword_end(map, head), SelectionGoal::None)
7223 });
7224 })
7225 }
7226
7227 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7228 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7229 s.move_heads_with(|map, head, _| {
7230 (movement::next_word_end(map, head), SelectionGoal::None)
7231 });
7232 })
7233 }
7234
7235 pub fn select_to_next_subword_end(
7236 &mut self,
7237 _: &SelectToNextSubwordEnd,
7238 cx: &mut ViewContext<Self>,
7239 ) {
7240 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7241 s.move_heads_with(|map, head, _| {
7242 (movement::next_subword_end(map, head), SelectionGoal::None)
7243 });
7244 })
7245 }
7246
7247 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
7248 self.transact(cx, |this, cx| {
7249 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7250 let line_mode = s.line_mode;
7251 s.move_with(|map, selection| {
7252 if selection.is_empty() && !line_mode {
7253 let cursor = movement::next_word_end(map, selection.head());
7254 selection.set_head(cursor, SelectionGoal::None);
7255 }
7256 });
7257 });
7258 this.insert("", cx);
7259 });
7260 }
7261
7262 pub fn delete_to_next_subword_end(
7263 &mut self,
7264 _: &DeleteToNextSubwordEnd,
7265 cx: &mut ViewContext<Self>,
7266 ) {
7267 self.transact(cx, |this, cx| {
7268 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7269 s.move_with(|map, selection| {
7270 if selection.is_empty() {
7271 let cursor = movement::next_subword_end(map, selection.head());
7272 selection.set_head(cursor, SelectionGoal::None);
7273 }
7274 });
7275 });
7276 this.insert("", cx);
7277 });
7278 }
7279
7280 pub fn move_to_beginning_of_line(
7281 &mut self,
7282 action: &MoveToBeginningOfLine,
7283 cx: &mut ViewContext<Self>,
7284 ) {
7285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7286 s.move_cursors_with(|map, head, _| {
7287 (
7288 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7289 SelectionGoal::None,
7290 )
7291 });
7292 })
7293 }
7294
7295 pub fn select_to_beginning_of_line(
7296 &mut self,
7297 action: &SelectToBeginningOfLine,
7298 cx: &mut ViewContext<Self>,
7299 ) {
7300 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7301 s.move_heads_with(|map, head, _| {
7302 (
7303 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7304 SelectionGoal::None,
7305 )
7306 });
7307 });
7308 }
7309
7310 pub fn delete_to_beginning_of_line(
7311 &mut self,
7312 _: &DeleteToBeginningOfLine,
7313 cx: &mut ViewContext<Self>,
7314 ) {
7315 self.transact(cx, |this, cx| {
7316 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7317 s.move_with(|_, selection| {
7318 selection.reversed = true;
7319 });
7320 });
7321
7322 this.select_to_beginning_of_line(
7323 &SelectToBeginningOfLine {
7324 stop_at_soft_wraps: false,
7325 },
7326 cx,
7327 );
7328 this.backspace(&Backspace, cx);
7329 });
7330 }
7331
7332 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7333 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7334 s.move_cursors_with(|map, head, _| {
7335 (
7336 movement::line_end(map, head, action.stop_at_soft_wraps),
7337 SelectionGoal::None,
7338 )
7339 });
7340 })
7341 }
7342
7343 pub fn select_to_end_of_line(
7344 &mut self,
7345 action: &SelectToEndOfLine,
7346 cx: &mut ViewContext<Self>,
7347 ) {
7348 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7349 s.move_heads_with(|map, head, _| {
7350 (
7351 movement::line_end(map, head, action.stop_at_soft_wraps),
7352 SelectionGoal::None,
7353 )
7354 });
7355 })
7356 }
7357
7358 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7359 self.transact(cx, |this, cx| {
7360 this.select_to_end_of_line(
7361 &SelectToEndOfLine {
7362 stop_at_soft_wraps: false,
7363 },
7364 cx,
7365 );
7366 this.delete(&Delete, cx);
7367 });
7368 }
7369
7370 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7371 self.transact(cx, |this, cx| {
7372 this.select_to_end_of_line(
7373 &SelectToEndOfLine {
7374 stop_at_soft_wraps: false,
7375 },
7376 cx,
7377 );
7378 this.cut(&Cut, cx);
7379 });
7380 }
7381
7382 pub fn move_to_start_of_paragraph(
7383 &mut self,
7384 _: &MoveToStartOfParagraph,
7385 cx: &mut ViewContext<Self>,
7386 ) {
7387 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7388 cx.propagate();
7389 return;
7390 }
7391
7392 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7393 s.move_with(|map, selection| {
7394 selection.collapse_to(
7395 movement::start_of_paragraph(map, selection.head(), 1),
7396 SelectionGoal::None,
7397 )
7398 });
7399 })
7400 }
7401
7402 pub fn move_to_end_of_paragraph(
7403 &mut self,
7404 _: &MoveToEndOfParagraph,
7405 cx: &mut ViewContext<Self>,
7406 ) {
7407 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7408 cx.propagate();
7409 return;
7410 }
7411
7412 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7413 s.move_with(|map, selection| {
7414 selection.collapse_to(
7415 movement::end_of_paragraph(map, selection.head(), 1),
7416 SelectionGoal::None,
7417 )
7418 });
7419 })
7420 }
7421
7422 pub fn select_to_start_of_paragraph(
7423 &mut self,
7424 _: &SelectToStartOfParagraph,
7425 cx: &mut ViewContext<Self>,
7426 ) {
7427 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7428 cx.propagate();
7429 return;
7430 }
7431
7432 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7433 s.move_heads_with(|map, head, _| {
7434 (
7435 movement::start_of_paragraph(map, head, 1),
7436 SelectionGoal::None,
7437 )
7438 });
7439 })
7440 }
7441
7442 pub fn select_to_end_of_paragraph(
7443 &mut self,
7444 _: &SelectToEndOfParagraph,
7445 cx: &mut ViewContext<Self>,
7446 ) {
7447 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7448 cx.propagate();
7449 return;
7450 }
7451
7452 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7453 s.move_heads_with(|map, head, _| {
7454 (
7455 movement::end_of_paragraph(map, head, 1),
7456 SelectionGoal::None,
7457 )
7458 });
7459 })
7460 }
7461
7462 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7463 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7464 cx.propagate();
7465 return;
7466 }
7467
7468 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7469 s.select_ranges(vec![0..0]);
7470 });
7471 }
7472
7473 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7474 let mut selection = self.selections.last::<Point>(cx);
7475 selection.set_head(Point::zero(), SelectionGoal::None);
7476
7477 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7478 s.select(vec![selection]);
7479 });
7480 }
7481
7482 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7483 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7484 cx.propagate();
7485 return;
7486 }
7487
7488 let cursor = self.buffer.read(cx).read(cx).len();
7489 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7490 s.select_ranges(vec![cursor..cursor])
7491 });
7492 }
7493
7494 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7495 self.nav_history = nav_history;
7496 }
7497
7498 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7499 self.nav_history.as_ref()
7500 }
7501
7502 fn push_to_nav_history(
7503 &mut self,
7504 cursor_anchor: Anchor,
7505 new_position: Option<Point>,
7506 cx: &mut ViewContext<Self>,
7507 ) {
7508 if let Some(nav_history) = self.nav_history.as_mut() {
7509 let buffer = self.buffer.read(cx).read(cx);
7510 let cursor_position = cursor_anchor.to_point(&buffer);
7511 let scroll_state = self.scroll_manager.anchor();
7512 let scroll_top_row = scroll_state.top_row(&buffer);
7513 drop(buffer);
7514
7515 if let Some(new_position) = new_position {
7516 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7517 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7518 return;
7519 }
7520 }
7521
7522 nav_history.push(
7523 Some(NavigationData {
7524 cursor_anchor,
7525 cursor_position,
7526 scroll_anchor: scroll_state,
7527 scroll_top_row,
7528 }),
7529 cx,
7530 );
7531 }
7532 }
7533
7534 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7535 let buffer = self.buffer.read(cx).snapshot(cx);
7536 let mut selection = self.selections.first::<usize>(cx);
7537 selection.set_head(buffer.len(), SelectionGoal::None);
7538 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7539 s.select(vec![selection]);
7540 });
7541 }
7542
7543 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7544 let end = self.buffer.read(cx).read(cx).len();
7545 self.change_selections(None, cx, |s| {
7546 s.select_ranges(vec![0..end]);
7547 });
7548 }
7549
7550 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7551 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7552 let mut selections = self.selections.all::<Point>(cx);
7553 let max_point = display_map.buffer_snapshot.max_point();
7554 for selection in &mut selections {
7555 let rows = selection.spanned_rows(true, &display_map);
7556 selection.start = Point::new(rows.start.0, 0);
7557 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7558 selection.reversed = false;
7559 }
7560 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7561 s.select(selections);
7562 });
7563 }
7564
7565 pub fn split_selection_into_lines(
7566 &mut self,
7567 _: &SplitSelectionIntoLines,
7568 cx: &mut ViewContext<Self>,
7569 ) {
7570 let mut to_unfold = Vec::new();
7571 let mut new_selection_ranges = Vec::new();
7572 {
7573 let selections = self.selections.all::<Point>(cx);
7574 let buffer = self.buffer.read(cx).read(cx);
7575 for selection in selections {
7576 for row in selection.start.row..selection.end.row {
7577 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7578 new_selection_ranges.push(cursor..cursor);
7579 }
7580 new_selection_ranges.push(selection.end..selection.end);
7581 to_unfold.push(selection.start..selection.end);
7582 }
7583 }
7584 self.unfold_ranges(to_unfold, true, true, cx);
7585 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7586 s.select_ranges(new_selection_ranges);
7587 });
7588 }
7589
7590 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7591 self.add_selection(true, cx);
7592 }
7593
7594 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7595 self.add_selection(false, cx);
7596 }
7597
7598 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7599 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7600 let mut selections = self.selections.all::<Point>(cx);
7601 let text_layout_details = self.text_layout_details(cx);
7602 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7603 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7604 let range = oldest_selection.display_range(&display_map).sorted();
7605
7606 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7607 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7608 let positions = start_x.min(end_x)..start_x.max(end_x);
7609
7610 selections.clear();
7611 let mut stack = Vec::new();
7612 for row in range.start.row().0..=range.end.row().0 {
7613 if let Some(selection) = self.selections.build_columnar_selection(
7614 &display_map,
7615 DisplayRow(row),
7616 &positions,
7617 oldest_selection.reversed,
7618 &text_layout_details,
7619 ) {
7620 stack.push(selection.id);
7621 selections.push(selection);
7622 }
7623 }
7624
7625 if above {
7626 stack.reverse();
7627 }
7628
7629 AddSelectionsState { above, stack }
7630 });
7631
7632 let last_added_selection = *state.stack.last().unwrap();
7633 let mut new_selections = Vec::new();
7634 if above == state.above {
7635 let end_row = if above {
7636 DisplayRow(0)
7637 } else {
7638 display_map.max_point().row()
7639 };
7640
7641 'outer: for selection in selections {
7642 if selection.id == last_added_selection {
7643 let range = selection.display_range(&display_map).sorted();
7644 debug_assert_eq!(range.start.row(), range.end.row());
7645 let mut row = range.start.row();
7646 let positions =
7647 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7648 px(start)..px(end)
7649 } else {
7650 let start_x =
7651 display_map.x_for_display_point(range.start, &text_layout_details);
7652 let end_x =
7653 display_map.x_for_display_point(range.end, &text_layout_details);
7654 start_x.min(end_x)..start_x.max(end_x)
7655 };
7656
7657 while row != end_row {
7658 if above {
7659 row.0 -= 1;
7660 } else {
7661 row.0 += 1;
7662 }
7663
7664 if let Some(new_selection) = self.selections.build_columnar_selection(
7665 &display_map,
7666 row,
7667 &positions,
7668 selection.reversed,
7669 &text_layout_details,
7670 ) {
7671 state.stack.push(new_selection.id);
7672 if above {
7673 new_selections.push(new_selection);
7674 new_selections.push(selection);
7675 } else {
7676 new_selections.push(selection);
7677 new_selections.push(new_selection);
7678 }
7679
7680 continue 'outer;
7681 }
7682 }
7683 }
7684
7685 new_selections.push(selection);
7686 }
7687 } else {
7688 new_selections = selections;
7689 new_selections.retain(|s| s.id != last_added_selection);
7690 state.stack.pop();
7691 }
7692
7693 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7694 s.select(new_selections);
7695 });
7696 if state.stack.len() > 1 {
7697 self.add_selections_state = Some(state);
7698 }
7699 }
7700
7701 pub fn select_next_match_internal(
7702 &mut self,
7703 display_map: &DisplaySnapshot,
7704 replace_newest: bool,
7705 autoscroll: Option<Autoscroll>,
7706 cx: &mut ViewContext<Self>,
7707 ) -> Result<()> {
7708 fn select_next_match_ranges(
7709 this: &mut Editor,
7710 range: Range<usize>,
7711 replace_newest: bool,
7712 auto_scroll: Option<Autoscroll>,
7713 cx: &mut ViewContext<Editor>,
7714 ) {
7715 this.unfold_ranges([range.clone()], false, true, cx);
7716 this.change_selections(auto_scroll, cx, |s| {
7717 if replace_newest {
7718 s.delete(s.newest_anchor().id);
7719 }
7720 s.insert_range(range.clone());
7721 });
7722 }
7723
7724 let buffer = &display_map.buffer_snapshot;
7725 let mut selections = self.selections.all::<usize>(cx);
7726 if let Some(mut select_next_state) = self.select_next_state.take() {
7727 let query = &select_next_state.query;
7728 if !select_next_state.done {
7729 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7730 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7731 let mut next_selected_range = None;
7732
7733 let bytes_after_last_selection =
7734 buffer.bytes_in_range(last_selection.end..buffer.len());
7735 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7736 let query_matches = query
7737 .stream_find_iter(bytes_after_last_selection)
7738 .map(|result| (last_selection.end, result))
7739 .chain(
7740 query
7741 .stream_find_iter(bytes_before_first_selection)
7742 .map(|result| (0, result)),
7743 );
7744
7745 for (start_offset, query_match) in query_matches {
7746 let query_match = query_match.unwrap(); // can only fail due to I/O
7747 let offset_range =
7748 start_offset + query_match.start()..start_offset + query_match.end();
7749 let display_range = offset_range.start.to_display_point(&display_map)
7750 ..offset_range.end.to_display_point(&display_map);
7751
7752 if !select_next_state.wordwise
7753 || (!movement::is_inside_word(&display_map, display_range.start)
7754 && !movement::is_inside_word(&display_map, display_range.end))
7755 {
7756 // TODO: This is n^2, because we might check all the selections
7757 if !selections
7758 .iter()
7759 .any(|selection| selection.range().overlaps(&offset_range))
7760 {
7761 next_selected_range = Some(offset_range);
7762 break;
7763 }
7764 }
7765 }
7766
7767 if let Some(next_selected_range) = next_selected_range {
7768 select_next_match_ranges(
7769 self,
7770 next_selected_range,
7771 replace_newest,
7772 autoscroll,
7773 cx,
7774 );
7775 } else {
7776 select_next_state.done = true;
7777 }
7778 }
7779
7780 self.select_next_state = Some(select_next_state);
7781 } else {
7782 let mut only_carets = true;
7783 let mut same_text_selected = true;
7784 let mut selected_text = None;
7785
7786 let mut selections_iter = selections.iter().peekable();
7787 while let Some(selection) = selections_iter.next() {
7788 if selection.start != selection.end {
7789 only_carets = false;
7790 }
7791
7792 if same_text_selected {
7793 if selected_text.is_none() {
7794 selected_text =
7795 Some(buffer.text_for_range(selection.range()).collect::<String>());
7796 }
7797
7798 if let Some(next_selection) = selections_iter.peek() {
7799 if next_selection.range().len() == selection.range().len() {
7800 let next_selected_text = buffer
7801 .text_for_range(next_selection.range())
7802 .collect::<String>();
7803 if Some(next_selected_text) != selected_text {
7804 same_text_selected = false;
7805 selected_text = None;
7806 }
7807 } else {
7808 same_text_selected = false;
7809 selected_text = None;
7810 }
7811 }
7812 }
7813 }
7814
7815 if only_carets {
7816 for selection in &mut selections {
7817 let word_range = movement::surrounding_word(
7818 &display_map,
7819 selection.start.to_display_point(&display_map),
7820 );
7821 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7822 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7823 selection.goal = SelectionGoal::None;
7824 selection.reversed = false;
7825 select_next_match_ranges(
7826 self,
7827 selection.start..selection.end,
7828 replace_newest,
7829 autoscroll,
7830 cx,
7831 );
7832 }
7833
7834 if selections.len() == 1 {
7835 let selection = selections
7836 .last()
7837 .expect("ensured that there's only one selection");
7838 let query = buffer
7839 .text_for_range(selection.start..selection.end)
7840 .collect::<String>();
7841 let is_empty = query.is_empty();
7842 let select_state = SelectNextState {
7843 query: AhoCorasick::new(&[query])?,
7844 wordwise: true,
7845 done: is_empty,
7846 };
7847 self.select_next_state = Some(select_state);
7848 } else {
7849 self.select_next_state = None;
7850 }
7851 } else if let Some(selected_text) = selected_text {
7852 self.select_next_state = Some(SelectNextState {
7853 query: AhoCorasick::new(&[selected_text])?,
7854 wordwise: false,
7855 done: false,
7856 });
7857 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7858 }
7859 }
7860 Ok(())
7861 }
7862
7863 pub fn select_all_matches(
7864 &mut self,
7865 _action: &SelectAllMatches,
7866 cx: &mut ViewContext<Self>,
7867 ) -> Result<()> {
7868 self.push_to_selection_history();
7869 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7870
7871 self.select_next_match_internal(&display_map, false, None, cx)?;
7872 let Some(select_next_state) = self.select_next_state.as_mut() else {
7873 return Ok(());
7874 };
7875 if select_next_state.done {
7876 return Ok(());
7877 }
7878
7879 let mut new_selections = self.selections.all::<usize>(cx);
7880
7881 let buffer = &display_map.buffer_snapshot;
7882 let query_matches = select_next_state
7883 .query
7884 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7885
7886 for query_match in query_matches {
7887 let query_match = query_match.unwrap(); // can only fail due to I/O
7888 let offset_range = query_match.start()..query_match.end();
7889 let display_range = offset_range.start.to_display_point(&display_map)
7890 ..offset_range.end.to_display_point(&display_map);
7891
7892 if !select_next_state.wordwise
7893 || (!movement::is_inside_word(&display_map, display_range.start)
7894 && !movement::is_inside_word(&display_map, display_range.end))
7895 {
7896 self.selections.change_with(cx, |selections| {
7897 new_selections.push(Selection {
7898 id: selections.new_selection_id(),
7899 start: offset_range.start,
7900 end: offset_range.end,
7901 reversed: false,
7902 goal: SelectionGoal::None,
7903 });
7904 });
7905 }
7906 }
7907
7908 new_selections.sort_by_key(|selection| selection.start);
7909 let mut ix = 0;
7910 while ix + 1 < new_selections.len() {
7911 let current_selection = &new_selections[ix];
7912 let next_selection = &new_selections[ix + 1];
7913 if current_selection.range().overlaps(&next_selection.range()) {
7914 if current_selection.id < next_selection.id {
7915 new_selections.remove(ix + 1);
7916 } else {
7917 new_selections.remove(ix);
7918 }
7919 } else {
7920 ix += 1;
7921 }
7922 }
7923
7924 select_next_state.done = true;
7925 self.unfold_ranges(
7926 new_selections.iter().map(|selection| selection.range()),
7927 false,
7928 false,
7929 cx,
7930 );
7931 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7932 selections.select(new_selections)
7933 });
7934
7935 Ok(())
7936 }
7937
7938 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7939 self.push_to_selection_history();
7940 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7941 self.select_next_match_internal(
7942 &display_map,
7943 action.replace_newest,
7944 Some(Autoscroll::newest()),
7945 cx,
7946 )?;
7947 Ok(())
7948 }
7949
7950 pub fn select_previous(
7951 &mut self,
7952 action: &SelectPrevious,
7953 cx: &mut ViewContext<Self>,
7954 ) -> Result<()> {
7955 self.push_to_selection_history();
7956 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7957 let buffer = &display_map.buffer_snapshot;
7958 let mut selections = self.selections.all::<usize>(cx);
7959 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7960 let query = &select_prev_state.query;
7961 if !select_prev_state.done {
7962 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7963 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7964 let mut next_selected_range = None;
7965 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7966 let bytes_before_last_selection =
7967 buffer.reversed_bytes_in_range(0..last_selection.start);
7968 let bytes_after_first_selection =
7969 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7970 let query_matches = query
7971 .stream_find_iter(bytes_before_last_selection)
7972 .map(|result| (last_selection.start, result))
7973 .chain(
7974 query
7975 .stream_find_iter(bytes_after_first_selection)
7976 .map(|result| (buffer.len(), result)),
7977 );
7978 for (end_offset, query_match) in query_matches {
7979 let query_match = query_match.unwrap(); // can only fail due to I/O
7980 let offset_range =
7981 end_offset - query_match.end()..end_offset - query_match.start();
7982 let display_range = offset_range.start.to_display_point(&display_map)
7983 ..offset_range.end.to_display_point(&display_map);
7984
7985 if !select_prev_state.wordwise
7986 || (!movement::is_inside_word(&display_map, display_range.start)
7987 && !movement::is_inside_word(&display_map, display_range.end))
7988 {
7989 next_selected_range = Some(offset_range);
7990 break;
7991 }
7992 }
7993
7994 if let Some(next_selected_range) = next_selected_range {
7995 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7996 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7997 if action.replace_newest {
7998 s.delete(s.newest_anchor().id);
7999 }
8000 s.insert_range(next_selected_range);
8001 });
8002 } else {
8003 select_prev_state.done = true;
8004 }
8005 }
8006
8007 self.select_prev_state = Some(select_prev_state);
8008 } else {
8009 let mut only_carets = true;
8010 let mut same_text_selected = true;
8011 let mut selected_text = None;
8012
8013 let mut selections_iter = selections.iter().peekable();
8014 while let Some(selection) = selections_iter.next() {
8015 if selection.start != selection.end {
8016 only_carets = false;
8017 }
8018
8019 if same_text_selected {
8020 if selected_text.is_none() {
8021 selected_text =
8022 Some(buffer.text_for_range(selection.range()).collect::<String>());
8023 }
8024
8025 if let Some(next_selection) = selections_iter.peek() {
8026 if next_selection.range().len() == selection.range().len() {
8027 let next_selected_text = buffer
8028 .text_for_range(next_selection.range())
8029 .collect::<String>();
8030 if Some(next_selected_text) != selected_text {
8031 same_text_selected = false;
8032 selected_text = None;
8033 }
8034 } else {
8035 same_text_selected = false;
8036 selected_text = None;
8037 }
8038 }
8039 }
8040 }
8041
8042 if only_carets {
8043 for selection in &mut selections {
8044 let word_range = movement::surrounding_word(
8045 &display_map,
8046 selection.start.to_display_point(&display_map),
8047 );
8048 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8049 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8050 selection.goal = SelectionGoal::None;
8051 selection.reversed = false;
8052 }
8053 if selections.len() == 1 {
8054 let selection = selections
8055 .last()
8056 .expect("ensured that there's only one selection");
8057 let query = buffer
8058 .text_for_range(selection.start..selection.end)
8059 .collect::<String>();
8060 let is_empty = query.is_empty();
8061 let select_state = SelectNextState {
8062 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8063 wordwise: true,
8064 done: is_empty,
8065 };
8066 self.select_prev_state = Some(select_state);
8067 } else {
8068 self.select_prev_state = None;
8069 }
8070
8071 self.unfold_ranges(
8072 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8073 false,
8074 true,
8075 cx,
8076 );
8077 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8078 s.select(selections);
8079 });
8080 } else if let Some(selected_text) = selected_text {
8081 self.select_prev_state = Some(SelectNextState {
8082 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8083 wordwise: false,
8084 done: false,
8085 });
8086 self.select_previous(action, cx)?;
8087 }
8088 }
8089 Ok(())
8090 }
8091
8092 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8093 let text_layout_details = &self.text_layout_details(cx);
8094 self.transact(cx, |this, cx| {
8095 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8096 let mut edits = Vec::new();
8097 let mut selection_edit_ranges = Vec::new();
8098 let mut last_toggled_row = None;
8099 let snapshot = this.buffer.read(cx).read(cx);
8100 let empty_str: Arc<str> = "".into();
8101 let mut suffixes_inserted = Vec::new();
8102
8103 fn comment_prefix_range(
8104 snapshot: &MultiBufferSnapshot,
8105 row: MultiBufferRow,
8106 comment_prefix: &str,
8107 comment_prefix_whitespace: &str,
8108 ) -> Range<Point> {
8109 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8110
8111 let mut line_bytes = snapshot
8112 .bytes_in_range(start..snapshot.max_point())
8113 .flatten()
8114 .copied();
8115
8116 // If this line currently begins with the line comment prefix, then record
8117 // the range containing the prefix.
8118 if line_bytes
8119 .by_ref()
8120 .take(comment_prefix.len())
8121 .eq(comment_prefix.bytes())
8122 {
8123 // Include any whitespace that matches the comment prefix.
8124 let matching_whitespace_len = line_bytes
8125 .zip(comment_prefix_whitespace.bytes())
8126 .take_while(|(a, b)| a == b)
8127 .count() as u32;
8128 let end = Point::new(
8129 start.row,
8130 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8131 );
8132 start..end
8133 } else {
8134 start..start
8135 }
8136 }
8137
8138 fn comment_suffix_range(
8139 snapshot: &MultiBufferSnapshot,
8140 row: MultiBufferRow,
8141 comment_suffix: &str,
8142 comment_suffix_has_leading_space: bool,
8143 ) -> Range<Point> {
8144 let end = Point::new(row.0, snapshot.line_len(row));
8145 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8146
8147 let mut line_end_bytes = snapshot
8148 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8149 .flatten()
8150 .copied();
8151
8152 let leading_space_len = if suffix_start_column > 0
8153 && line_end_bytes.next() == Some(b' ')
8154 && comment_suffix_has_leading_space
8155 {
8156 1
8157 } else {
8158 0
8159 };
8160
8161 // If this line currently begins with the line comment prefix, then record
8162 // the range containing the prefix.
8163 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8164 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8165 start..end
8166 } else {
8167 end..end
8168 }
8169 }
8170
8171 // TODO: Handle selections that cross excerpts
8172 for selection in &mut selections {
8173 let start_column = snapshot
8174 .indent_size_for_line(MultiBufferRow(selection.start.row))
8175 .len;
8176 let language = if let Some(language) =
8177 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8178 {
8179 language
8180 } else {
8181 continue;
8182 };
8183
8184 selection_edit_ranges.clear();
8185
8186 // If multiple selections contain a given row, avoid processing that
8187 // row more than once.
8188 let mut start_row = MultiBufferRow(selection.start.row);
8189 if last_toggled_row == Some(start_row) {
8190 start_row = start_row.next_row();
8191 }
8192 let end_row =
8193 if selection.end.row > selection.start.row && selection.end.column == 0 {
8194 MultiBufferRow(selection.end.row - 1)
8195 } else {
8196 MultiBufferRow(selection.end.row)
8197 };
8198 last_toggled_row = Some(end_row);
8199
8200 if start_row > end_row {
8201 continue;
8202 }
8203
8204 // If the language has line comments, toggle those.
8205 let full_comment_prefixes = language.line_comment_prefixes();
8206 if !full_comment_prefixes.is_empty() {
8207 let first_prefix = full_comment_prefixes
8208 .first()
8209 .expect("prefixes is non-empty");
8210 let prefix_trimmed_lengths = full_comment_prefixes
8211 .iter()
8212 .map(|p| p.trim_end_matches(' ').len())
8213 .collect::<SmallVec<[usize; 4]>>();
8214
8215 let mut all_selection_lines_are_comments = true;
8216
8217 for row in start_row.0..=end_row.0 {
8218 let row = MultiBufferRow(row);
8219 if start_row < end_row && snapshot.is_line_blank(row) {
8220 continue;
8221 }
8222
8223 let prefix_range = full_comment_prefixes
8224 .iter()
8225 .zip(prefix_trimmed_lengths.iter().copied())
8226 .map(|(prefix, trimmed_prefix_len)| {
8227 comment_prefix_range(
8228 snapshot.deref(),
8229 row,
8230 &prefix[..trimmed_prefix_len],
8231 &prefix[trimmed_prefix_len..],
8232 )
8233 })
8234 .max_by_key(|range| range.end.column - range.start.column)
8235 .expect("prefixes is non-empty");
8236
8237 if prefix_range.is_empty() {
8238 all_selection_lines_are_comments = false;
8239 }
8240
8241 selection_edit_ranges.push(prefix_range);
8242 }
8243
8244 if all_selection_lines_are_comments {
8245 edits.extend(
8246 selection_edit_ranges
8247 .iter()
8248 .cloned()
8249 .map(|range| (range, empty_str.clone())),
8250 );
8251 } else {
8252 let min_column = selection_edit_ranges
8253 .iter()
8254 .map(|range| range.start.column)
8255 .min()
8256 .unwrap_or(0);
8257 edits.extend(selection_edit_ranges.iter().map(|range| {
8258 let position = Point::new(range.start.row, min_column);
8259 (position..position, first_prefix.clone())
8260 }));
8261 }
8262 } else if let Some((full_comment_prefix, comment_suffix)) =
8263 language.block_comment_delimiters()
8264 {
8265 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8266 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8267 let prefix_range = comment_prefix_range(
8268 snapshot.deref(),
8269 start_row,
8270 comment_prefix,
8271 comment_prefix_whitespace,
8272 );
8273 let suffix_range = comment_suffix_range(
8274 snapshot.deref(),
8275 end_row,
8276 comment_suffix.trim_start_matches(' '),
8277 comment_suffix.starts_with(' '),
8278 );
8279
8280 if prefix_range.is_empty() || suffix_range.is_empty() {
8281 edits.push((
8282 prefix_range.start..prefix_range.start,
8283 full_comment_prefix.clone(),
8284 ));
8285 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8286 suffixes_inserted.push((end_row, comment_suffix.len()));
8287 } else {
8288 edits.push((prefix_range, empty_str.clone()));
8289 edits.push((suffix_range, empty_str.clone()));
8290 }
8291 } else {
8292 continue;
8293 }
8294 }
8295
8296 drop(snapshot);
8297 this.buffer.update(cx, |buffer, cx| {
8298 buffer.edit(edits, None, cx);
8299 });
8300
8301 // Adjust selections so that they end before any comment suffixes that
8302 // were inserted.
8303 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8304 let mut selections = this.selections.all::<Point>(cx);
8305 let snapshot = this.buffer.read(cx).read(cx);
8306 for selection in &mut selections {
8307 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8308 match row.cmp(&MultiBufferRow(selection.end.row)) {
8309 Ordering::Less => {
8310 suffixes_inserted.next();
8311 continue;
8312 }
8313 Ordering::Greater => break,
8314 Ordering::Equal => {
8315 if selection.end.column == snapshot.line_len(row) {
8316 if selection.is_empty() {
8317 selection.start.column -= suffix_len as u32;
8318 }
8319 selection.end.column -= suffix_len as u32;
8320 }
8321 break;
8322 }
8323 }
8324 }
8325 }
8326
8327 drop(snapshot);
8328 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8329
8330 let selections = this.selections.all::<Point>(cx);
8331 let selections_on_single_row = selections.windows(2).all(|selections| {
8332 selections[0].start.row == selections[1].start.row
8333 && selections[0].end.row == selections[1].end.row
8334 && selections[0].start.row == selections[0].end.row
8335 });
8336 let selections_selecting = selections
8337 .iter()
8338 .any(|selection| selection.start != selection.end);
8339 let advance_downwards = action.advance_downwards
8340 && selections_on_single_row
8341 && !selections_selecting
8342 && !matches!(this.mode, EditorMode::SingleLine { .. });
8343
8344 if advance_downwards {
8345 let snapshot = this.buffer.read(cx).snapshot(cx);
8346
8347 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8348 s.move_cursors_with(|display_snapshot, display_point, _| {
8349 let mut point = display_point.to_point(display_snapshot);
8350 point.row += 1;
8351 point = snapshot.clip_point(point, Bias::Left);
8352 let display_point = point.to_display_point(display_snapshot);
8353 let goal = SelectionGoal::HorizontalPosition(
8354 display_snapshot
8355 .x_for_display_point(display_point, &text_layout_details)
8356 .into(),
8357 );
8358 (display_point, goal)
8359 })
8360 });
8361 }
8362 });
8363 }
8364
8365 pub fn select_enclosing_symbol(
8366 &mut self,
8367 _: &SelectEnclosingSymbol,
8368 cx: &mut ViewContext<Self>,
8369 ) {
8370 let buffer = self.buffer.read(cx).snapshot(cx);
8371 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8372
8373 fn update_selection(
8374 selection: &Selection<usize>,
8375 buffer_snap: &MultiBufferSnapshot,
8376 ) -> Option<Selection<usize>> {
8377 let cursor = selection.head();
8378 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8379 for symbol in symbols.iter().rev() {
8380 let start = symbol.range.start.to_offset(&buffer_snap);
8381 let end = symbol.range.end.to_offset(&buffer_snap);
8382 let new_range = start..end;
8383 if start < selection.start || end > selection.end {
8384 return Some(Selection {
8385 id: selection.id,
8386 start: new_range.start,
8387 end: new_range.end,
8388 goal: SelectionGoal::None,
8389 reversed: selection.reversed,
8390 });
8391 }
8392 }
8393 None
8394 }
8395
8396 let mut selected_larger_symbol = false;
8397 let new_selections = old_selections
8398 .iter()
8399 .map(|selection| match update_selection(selection, &buffer) {
8400 Some(new_selection) => {
8401 if new_selection.range() != selection.range() {
8402 selected_larger_symbol = true;
8403 }
8404 new_selection
8405 }
8406 None => selection.clone(),
8407 })
8408 .collect::<Vec<_>>();
8409
8410 if selected_larger_symbol {
8411 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8412 s.select(new_selections);
8413 });
8414 }
8415 }
8416
8417 pub fn select_larger_syntax_node(
8418 &mut self,
8419 _: &SelectLargerSyntaxNode,
8420 cx: &mut ViewContext<Self>,
8421 ) {
8422 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8423 let buffer = self.buffer.read(cx).snapshot(cx);
8424 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8425
8426 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8427 let mut selected_larger_node = false;
8428 let new_selections = old_selections
8429 .iter()
8430 .map(|selection| {
8431 let old_range = selection.start..selection.end;
8432 let mut new_range = old_range.clone();
8433 while let Some(containing_range) =
8434 buffer.range_for_syntax_ancestor(new_range.clone())
8435 {
8436 new_range = containing_range;
8437 if !display_map.intersects_fold(new_range.start)
8438 && !display_map.intersects_fold(new_range.end)
8439 {
8440 break;
8441 }
8442 }
8443
8444 selected_larger_node |= new_range != old_range;
8445 Selection {
8446 id: selection.id,
8447 start: new_range.start,
8448 end: new_range.end,
8449 goal: SelectionGoal::None,
8450 reversed: selection.reversed,
8451 }
8452 })
8453 .collect::<Vec<_>>();
8454
8455 if selected_larger_node {
8456 stack.push(old_selections);
8457 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8458 s.select(new_selections);
8459 });
8460 }
8461 self.select_larger_syntax_node_stack = stack;
8462 }
8463
8464 pub fn select_smaller_syntax_node(
8465 &mut self,
8466 _: &SelectSmallerSyntaxNode,
8467 cx: &mut ViewContext<Self>,
8468 ) {
8469 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8470 if let Some(selections) = stack.pop() {
8471 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8472 s.select(selections.to_vec());
8473 });
8474 }
8475 self.select_larger_syntax_node_stack = stack;
8476 }
8477
8478 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8479 if !EditorSettings::get_global(cx).gutter.runnables {
8480 self.clear_tasks();
8481 return Task::ready(());
8482 }
8483 let project = self.project.clone();
8484 cx.spawn(|this, mut cx| async move {
8485 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8486 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8487 }) else {
8488 return;
8489 };
8490
8491 let Some(project) = project else {
8492 return;
8493 };
8494
8495 let hide_runnables = project
8496 .update(&mut cx, |project, cx| {
8497 // Do not display any test indicators in non-dev server remote projects.
8498 project.is_remote() && project.ssh_connection_string(cx).is_none()
8499 })
8500 .unwrap_or(true);
8501 if hide_runnables {
8502 return;
8503 }
8504 let new_rows =
8505 cx.background_executor()
8506 .spawn({
8507 let snapshot = display_snapshot.clone();
8508 async move {
8509 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8510 }
8511 })
8512 .await;
8513 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8514
8515 this.update(&mut cx, |this, _| {
8516 this.clear_tasks();
8517 for (key, value) in rows {
8518 this.insert_tasks(key, value);
8519 }
8520 })
8521 .ok();
8522 })
8523 }
8524 fn fetch_runnable_ranges(
8525 snapshot: &DisplaySnapshot,
8526 range: Range<Anchor>,
8527 ) -> Vec<language::RunnableRange> {
8528 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8529 }
8530
8531 fn runnable_rows(
8532 project: Model<Project>,
8533 snapshot: DisplaySnapshot,
8534 runnable_ranges: Vec<RunnableRange>,
8535 mut cx: AsyncWindowContext,
8536 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8537 runnable_ranges
8538 .into_iter()
8539 .filter_map(|mut runnable| {
8540 let tasks = cx
8541 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8542 .ok()?;
8543 if tasks.is_empty() {
8544 return None;
8545 }
8546
8547 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8548
8549 let row = snapshot
8550 .buffer_snapshot
8551 .buffer_line_for_row(MultiBufferRow(point.row))?
8552 .1
8553 .start
8554 .row;
8555
8556 let context_range =
8557 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8558 Some((
8559 (runnable.buffer_id, row),
8560 RunnableTasks {
8561 templates: tasks,
8562 offset: MultiBufferOffset(runnable.run_range.start),
8563 context_range,
8564 column: point.column,
8565 extra_variables: runnable.extra_captures,
8566 },
8567 ))
8568 })
8569 .collect()
8570 }
8571
8572 fn templates_with_tags(
8573 project: &Model<Project>,
8574 runnable: &mut Runnable,
8575 cx: &WindowContext<'_>,
8576 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8577 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8578 let (worktree_id, file) = project
8579 .buffer_for_id(runnable.buffer, cx)
8580 .and_then(|buffer| buffer.read(cx).file())
8581 .map(|file| (WorktreeId::from_usize(file.worktree_id()), file.clone()))
8582 .unzip();
8583
8584 (project.task_inventory().clone(), worktree_id, file)
8585 });
8586
8587 let inventory = inventory.read(cx);
8588 let tags = mem::take(&mut runnable.tags);
8589 let mut tags: Vec<_> = tags
8590 .into_iter()
8591 .flat_map(|tag| {
8592 let tag = tag.0.clone();
8593 inventory
8594 .list_tasks(
8595 file.clone(),
8596 Some(runnable.language.clone()),
8597 worktree_id,
8598 cx,
8599 )
8600 .into_iter()
8601 .filter(move |(_, template)| {
8602 template.tags.iter().any(|source_tag| source_tag == &tag)
8603 })
8604 })
8605 .sorted_by_key(|(kind, _)| kind.to_owned())
8606 .collect();
8607 if let Some((leading_tag_source, _)) = tags.first() {
8608 // Strongest source wins; if we have worktree tag binding, prefer that to
8609 // global and language bindings;
8610 // if we have a global binding, prefer that to language binding.
8611 let first_mismatch = tags
8612 .iter()
8613 .position(|(tag_source, _)| tag_source != leading_tag_source);
8614 if let Some(index) = first_mismatch {
8615 tags.truncate(index);
8616 }
8617 }
8618
8619 tags
8620 }
8621
8622 pub fn move_to_enclosing_bracket(
8623 &mut self,
8624 _: &MoveToEnclosingBracket,
8625 cx: &mut ViewContext<Self>,
8626 ) {
8627 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8628 s.move_offsets_with(|snapshot, selection| {
8629 let Some(enclosing_bracket_ranges) =
8630 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8631 else {
8632 return;
8633 };
8634
8635 let mut best_length = usize::MAX;
8636 let mut best_inside = false;
8637 let mut best_in_bracket_range = false;
8638 let mut best_destination = None;
8639 for (open, close) in enclosing_bracket_ranges {
8640 let close = close.to_inclusive();
8641 let length = close.end() - open.start;
8642 let inside = selection.start >= open.end && selection.end <= *close.start();
8643 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8644 || close.contains(&selection.head());
8645
8646 // If best is next to a bracket and current isn't, skip
8647 if !in_bracket_range && best_in_bracket_range {
8648 continue;
8649 }
8650
8651 // Prefer smaller lengths unless best is inside and current isn't
8652 if length > best_length && (best_inside || !inside) {
8653 continue;
8654 }
8655
8656 best_length = length;
8657 best_inside = inside;
8658 best_in_bracket_range = in_bracket_range;
8659 best_destination = Some(
8660 if close.contains(&selection.start) && close.contains(&selection.end) {
8661 if inside {
8662 open.end
8663 } else {
8664 open.start
8665 }
8666 } else {
8667 if inside {
8668 *close.start()
8669 } else {
8670 *close.end()
8671 }
8672 },
8673 );
8674 }
8675
8676 if let Some(destination) = best_destination {
8677 selection.collapse_to(destination, SelectionGoal::None);
8678 }
8679 })
8680 });
8681 }
8682
8683 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8684 self.end_selection(cx);
8685 self.selection_history.mode = SelectionHistoryMode::Undoing;
8686 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8687 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8688 self.select_next_state = entry.select_next_state;
8689 self.select_prev_state = entry.select_prev_state;
8690 self.add_selections_state = entry.add_selections_state;
8691 self.request_autoscroll(Autoscroll::newest(), cx);
8692 }
8693 self.selection_history.mode = SelectionHistoryMode::Normal;
8694 }
8695
8696 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8697 self.end_selection(cx);
8698 self.selection_history.mode = SelectionHistoryMode::Redoing;
8699 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8700 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8701 self.select_next_state = entry.select_next_state;
8702 self.select_prev_state = entry.select_prev_state;
8703 self.add_selections_state = entry.add_selections_state;
8704 self.request_autoscroll(Autoscroll::newest(), cx);
8705 }
8706 self.selection_history.mode = SelectionHistoryMode::Normal;
8707 }
8708
8709 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8710 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8711 }
8712
8713 pub fn expand_excerpts_down(
8714 &mut self,
8715 action: &ExpandExcerptsDown,
8716 cx: &mut ViewContext<Self>,
8717 ) {
8718 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8719 }
8720
8721 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8722 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8723 }
8724
8725 pub fn expand_excerpts_for_direction(
8726 &mut self,
8727 lines: u32,
8728 direction: ExpandExcerptDirection,
8729 cx: &mut ViewContext<Self>,
8730 ) {
8731 let selections = self.selections.disjoint_anchors();
8732
8733 let lines = if lines == 0 {
8734 EditorSettings::get_global(cx).expand_excerpt_lines
8735 } else {
8736 lines
8737 };
8738
8739 self.buffer.update(cx, |buffer, cx| {
8740 buffer.expand_excerpts(
8741 selections
8742 .into_iter()
8743 .map(|selection| selection.head().excerpt_id)
8744 .dedup(),
8745 lines,
8746 direction,
8747 cx,
8748 )
8749 })
8750 }
8751
8752 pub fn expand_excerpt(
8753 &mut self,
8754 excerpt: ExcerptId,
8755 direction: ExpandExcerptDirection,
8756 cx: &mut ViewContext<Self>,
8757 ) {
8758 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8759 self.buffer.update(cx, |buffer, cx| {
8760 buffer.expand_excerpts([excerpt], lines, direction, cx)
8761 })
8762 }
8763
8764 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8765 self.go_to_diagnostic_impl(Direction::Next, cx)
8766 }
8767
8768 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8769 self.go_to_diagnostic_impl(Direction::Prev, cx)
8770 }
8771
8772 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8773 let buffer = self.buffer.read(cx).snapshot(cx);
8774 let selection = self.selections.newest::<usize>(cx);
8775
8776 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8777 if direction == Direction::Next {
8778 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8779 let (group_id, jump_to) = popover.activation_info();
8780 if self.activate_diagnostics(group_id, cx) {
8781 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8782 let mut new_selection = s.newest_anchor().clone();
8783 new_selection.collapse_to(jump_to, SelectionGoal::None);
8784 s.select_anchors(vec![new_selection.clone()]);
8785 });
8786 }
8787 return;
8788 }
8789 }
8790
8791 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8792 active_diagnostics
8793 .primary_range
8794 .to_offset(&buffer)
8795 .to_inclusive()
8796 });
8797 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8798 if active_primary_range.contains(&selection.head()) {
8799 *active_primary_range.start()
8800 } else {
8801 selection.head()
8802 }
8803 } else {
8804 selection.head()
8805 };
8806 let snapshot = self.snapshot(cx);
8807 loop {
8808 let diagnostics = if direction == Direction::Prev {
8809 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8810 } else {
8811 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8812 }
8813 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8814 let group = diagnostics
8815 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8816 // be sorted in a stable way
8817 // skip until we are at current active diagnostic, if it exists
8818 .skip_while(|entry| {
8819 (match direction {
8820 Direction::Prev => entry.range.start >= search_start,
8821 Direction::Next => entry.range.start <= search_start,
8822 }) && self
8823 .active_diagnostics
8824 .as_ref()
8825 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8826 })
8827 .find_map(|entry| {
8828 if entry.diagnostic.is_primary
8829 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8830 && !entry.range.is_empty()
8831 // if we match with the active diagnostic, skip it
8832 && Some(entry.diagnostic.group_id)
8833 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8834 {
8835 Some((entry.range, entry.diagnostic.group_id))
8836 } else {
8837 None
8838 }
8839 });
8840
8841 if let Some((primary_range, group_id)) = group {
8842 if self.activate_diagnostics(group_id, cx) {
8843 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8844 s.select(vec![Selection {
8845 id: selection.id,
8846 start: primary_range.start,
8847 end: primary_range.start,
8848 reversed: false,
8849 goal: SelectionGoal::None,
8850 }]);
8851 });
8852 }
8853 break;
8854 } else {
8855 // Cycle around to the start of the buffer, potentially moving back to the start of
8856 // the currently active diagnostic.
8857 active_primary_range.take();
8858 if direction == Direction::Prev {
8859 if search_start == buffer.len() {
8860 break;
8861 } else {
8862 search_start = buffer.len();
8863 }
8864 } else if search_start == 0 {
8865 break;
8866 } else {
8867 search_start = 0;
8868 }
8869 }
8870 }
8871 }
8872
8873 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8874 let snapshot = self
8875 .display_map
8876 .update(cx, |display_map, cx| display_map.snapshot(cx));
8877 let selection = self.selections.newest::<Point>(cx);
8878
8879 if !self.seek_in_direction(
8880 &snapshot,
8881 selection.head(),
8882 false,
8883 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8884 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8885 ),
8886 cx,
8887 ) {
8888 let wrapped_point = Point::zero();
8889 self.seek_in_direction(
8890 &snapshot,
8891 wrapped_point,
8892 true,
8893 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8894 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8895 ),
8896 cx,
8897 );
8898 }
8899 }
8900
8901 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8902 let snapshot = self
8903 .display_map
8904 .update(cx, |display_map, cx| display_map.snapshot(cx));
8905 let selection = self.selections.newest::<Point>(cx);
8906
8907 if !self.seek_in_direction(
8908 &snapshot,
8909 selection.head(),
8910 false,
8911 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8912 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8913 ),
8914 cx,
8915 ) {
8916 let wrapped_point = snapshot.buffer_snapshot.max_point();
8917 self.seek_in_direction(
8918 &snapshot,
8919 wrapped_point,
8920 true,
8921 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8922 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8923 ),
8924 cx,
8925 );
8926 }
8927 }
8928
8929 fn seek_in_direction(
8930 &mut self,
8931 snapshot: &DisplaySnapshot,
8932 initial_point: Point,
8933 is_wrapped: bool,
8934 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8935 cx: &mut ViewContext<Editor>,
8936 ) -> bool {
8937 let display_point = initial_point.to_display_point(snapshot);
8938 let mut hunks = hunks
8939 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8940 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
8941 .dedup();
8942
8943 if let Some(hunk) = hunks.next() {
8944 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8945 let row = hunk.start_display_row();
8946 let point = DisplayPoint::new(row, 0);
8947 s.select_display_ranges([point..point]);
8948 });
8949
8950 true
8951 } else {
8952 false
8953 }
8954 }
8955
8956 pub fn go_to_definition(
8957 &mut self,
8958 _: &GoToDefinition,
8959 cx: &mut ViewContext<Self>,
8960 ) -> Task<Result<bool>> {
8961 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8962 }
8963
8964 pub fn go_to_implementation(
8965 &mut self,
8966 _: &GoToImplementation,
8967 cx: &mut ViewContext<Self>,
8968 ) -> Task<Result<bool>> {
8969 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8970 }
8971
8972 pub fn go_to_implementation_split(
8973 &mut self,
8974 _: &GoToImplementationSplit,
8975 cx: &mut ViewContext<Self>,
8976 ) -> Task<Result<bool>> {
8977 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8978 }
8979
8980 pub fn go_to_type_definition(
8981 &mut self,
8982 _: &GoToTypeDefinition,
8983 cx: &mut ViewContext<Self>,
8984 ) -> Task<Result<bool>> {
8985 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8986 }
8987
8988 pub fn go_to_definition_split(
8989 &mut self,
8990 _: &GoToDefinitionSplit,
8991 cx: &mut ViewContext<Self>,
8992 ) -> Task<Result<bool>> {
8993 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8994 }
8995
8996 pub fn go_to_type_definition_split(
8997 &mut self,
8998 _: &GoToTypeDefinitionSplit,
8999 cx: &mut ViewContext<Self>,
9000 ) -> Task<Result<bool>> {
9001 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9002 }
9003
9004 fn go_to_definition_of_kind(
9005 &mut self,
9006 kind: GotoDefinitionKind,
9007 split: bool,
9008 cx: &mut ViewContext<Self>,
9009 ) -> Task<Result<bool>> {
9010 let Some(workspace) = self.workspace() else {
9011 return Task::ready(Ok(false));
9012 };
9013 let buffer = self.buffer.read(cx);
9014 let head = self.selections.newest::<usize>(cx).head();
9015 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9016 text_anchor
9017 } else {
9018 return Task::ready(Ok(false));
9019 };
9020
9021 let project = workspace.read(cx).project().clone();
9022 let definitions = project.update(cx, |project, cx| match kind {
9023 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
9024 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
9025 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
9026 });
9027
9028 cx.spawn(|editor, mut cx| async move {
9029 let definitions = definitions.await?;
9030 let navigated = editor
9031 .update(&mut cx, |editor, cx| {
9032 editor.navigate_to_hover_links(
9033 Some(kind),
9034 definitions
9035 .into_iter()
9036 .filter(|location| {
9037 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9038 })
9039 .map(HoverLink::Text)
9040 .collect::<Vec<_>>(),
9041 split,
9042 cx,
9043 )
9044 })?
9045 .await?;
9046 anyhow::Ok(navigated)
9047 })
9048 }
9049
9050 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9051 let position = self.selections.newest_anchor().head();
9052 let Some((buffer, buffer_position)) =
9053 self.buffer.read(cx).text_anchor_for_position(position, cx)
9054 else {
9055 return;
9056 };
9057
9058 cx.spawn(|editor, mut cx| async move {
9059 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9060 editor.update(&mut cx, |_, cx| {
9061 cx.open_url(&url);
9062 })
9063 } else {
9064 Ok(())
9065 }
9066 })
9067 .detach();
9068 }
9069
9070 pub(crate) fn navigate_to_hover_links(
9071 &mut self,
9072 kind: Option<GotoDefinitionKind>,
9073 mut definitions: Vec<HoverLink>,
9074 split: bool,
9075 cx: &mut ViewContext<Editor>,
9076 ) -> Task<Result<bool>> {
9077 // If there is one definition, just open it directly
9078 if definitions.len() == 1 {
9079 let definition = definitions.pop().unwrap();
9080 let target_task = match definition {
9081 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9082 HoverLink::InlayHint(lsp_location, server_id) => {
9083 self.compute_target_location(lsp_location, server_id, cx)
9084 }
9085 HoverLink::Url(url) => {
9086 cx.open_url(&url);
9087 Task::ready(Ok(None))
9088 }
9089 };
9090 cx.spawn(|editor, mut cx| async move {
9091 let target = target_task.await.context("target resolution task")?;
9092 if let Some(target) = target {
9093 editor.update(&mut cx, |editor, cx| {
9094 let Some(workspace) = editor.workspace() else {
9095 return false;
9096 };
9097 let pane = workspace.read(cx).active_pane().clone();
9098
9099 let range = target.range.to_offset(target.buffer.read(cx));
9100 let range = editor.range_for_match(&range);
9101
9102 /// If select range has more than one line, we
9103 /// just point the cursor to range.start.
9104 fn check_multiline_range(
9105 buffer: &Buffer,
9106 range: Range<usize>,
9107 ) -> Range<usize> {
9108 if buffer.offset_to_point(range.start).row
9109 == buffer.offset_to_point(range.end).row
9110 {
9111 range
9112 } else {
9113 range.start..range.start
9114 }
9115 }
9116
9117 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9118 let buffer = target.buffer.read(cx);
9119 let range = check_multiline_range(buffer, range);
9120 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9121 s.select_ranges([range]);
9122 });
9123 } else {
9124 cx.window_context().defer(move |cx| {
9125 let target_editor: View<Self> =
9126 workspace.update(cx, |workspace, cx| {
9127 let pane = if split {
9128 workspace.adjacent_pane(cx)
9129 } else {
9130 workspace.active_pane().clone()
9131 };
9132
9133 workspace.open_project_item(
9134 pane,
9135 target.buffer.clone(),
9136 true,
9137 true,
9138 cx,
9139 )
9140 });
9141 target_editor.update(cx, |target_editor, cx| {
9142 // When selecting a definition in a different buffer, disable the nav history
9143 // to avoid creating a history entry at the previous cursor location.
9144 pane.update(cx, |pane, _| pane.disable_history());
9145 let buffer = target.buffer.read(cx);
9146 let range = check_multiline_range(buffer, range);
9147 target_editor.change_selections(
9148 Some(Autoscroll::focused()),
9149 cx,
9150 |s| {
9151 s.select_ranges([range]);
9152 },
9153 );
9154 pane.update(cx, |pane, _| pane.enable_history());
9155 });
9156 });
9157 }
9158 true
9159 })
9160 } else {
9161 Ok(false)
9162 }
9163 })
9164 } else if !definitions.is_empty() {
9165 let replica_id = self.replica_id(cx);
9166 cx.spawn(|editor, mut cx| async move {
9167 let (title, location_tasks, workspace) = editor
9168 .update(&mut cx, |editor, cx| {
9169 let tab_kind = match kind {
9170 Some(GotoDefinitionKind::Implementation) => "Implementations",
9171 _ => "Definitions",
9172 };
9173 let title = definitions
9174 .iter()
9175 .find_map(|definition| match definition {
9176 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9177 let buffer = origin.buffer.read(cx);
9178 format!(
9179 "{} for {}",
9180 tab_kind,
9181 buffer
9182 .text_for_range(origin.range.clone())
9183 .collect::<String>()
9184 )
9185 }),
9186 HoverLink::InlayHint(_, _) => None,
9187 HoverLink::Url(_) => None,
9188 })
9189 .unwrap_or(tab_kind.to_string());
9190 let location_tasks = definitions
9191 .into_iter()
9192 .map(|definition| match definition {
9193 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9194 HoverLink::InlayHint(lsp_location, server_id) => {
9195 editor.compute_target_location(lsp_location, server_id, cx)
9196 }
9197 HoverLink::Url(_) => Task::ready(Ok(None)),
9198 })
9199 .collect::<Vec<_>>();
9200 (title, location_tasks, editor.workspace().clone())
9201 })
9202 .context("location tasks preparation")?;
9203
9204 let locations = futures::future::join_all(location_tasks)
9205 .await
9206 .into_iter()
9207 .filter_map(|location| location.transpose())
9208 .collect::<Result<_>>()
9209 .context("location tasks")?;
9210
9211 let Some(workspace) = workspace else {
9212 return Ok(false);
9213 };
9214 let opened = workspace
9215 .update(&mut cx, |workspace, cx| {
9216 Self::open_locations_in_multibuffer(
9217 workspace, locations, replica_id, title, split, cx,
9218 )
9219 })
9220 .ok();
9221
9222 anyhow::Ok(opened.is_some())
9223 })
9224 } else {
9225 Task::ready(Ok(false))
9226 }
9227 }
9228
9229 fn compute_target_location(
9230 &self,
9231 lsp_location: lsp::Location,
9232 server_id: LanguageServerId,
9233 cx: &mut ViewContext<Editor>,
9234 ) -> Task<anyhow::Result<Option<Location>>> {
9235 let Some(project) = self.project.clone() else {
9236 return Task::Ready(Some(Ok(None)));
9237 };
9238
9239 cx.spawn(move |editor, mut cx| async move {
9240 let location_task = editor.update(&mut cx, |editor, cx| {
9241 project.update(cx, |project, cx| {
9242 let language_server_name =
9243 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9244 project
9245 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9246 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9247 });
9248 language_server_name.map(|language_server_name| {
9249 project.open_local_buffer_via_lsp(
9250 lsp_location.uri.clone(),
9251 server_id,
9252 language_server_name,
9253 cx,
9254 )
9255 })
9256 })
9257 })?;
9258 let location = match location_task {
9259 Some(task) => Some({
9260 let target_buffer_handle = task.await.context("open local buffer")?;
9261 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9262 let target_start = target_buffer
9263 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9264 let target_end = target_buffer
9265 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9266 target_buffer.anchor_after(target_start)
9267 ..target_buffer.anchor_before(target_end)
9268 })?;
9269 Location {
9270 buffer: target_buffer_handle,
9271 range,
9272 }
9273 }),
9274 None => None,
9275 };
9276 Ok(location)
9277 })
9278 }
9279
9280 pub fn find_all_references(
9281 &mut self,
9282 _: &FindAllReferences,
9283 cx: &mut ViewContext<Self>,
9284 ) -> Option<Task<Result<()>>> {
9285 let multi_buffer = self.buffer.read(cx);
9286 let selection = self.selections.newest::<usize>(cx);
9287 let head = selection.head();
9288
9289 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9290 let head_anchor = multi_buffer_snapshot.anchor_at(
9291 head,
9292 if head < selection.tail() {
9293 Bias::Right
9294 } else {
9295 Bias::Left
9296 },
9297 );
9298
9299 match self
9300 .find_all_references_task_sources
9301 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9302 {
9303 Ok(_) => {
9304 log::info!(
9305 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9306 );
9307 return None;
9308 }
9309 Err(i) => {
9310 self.find_all_references_task_sources.insert(i, head_anchor);
9311 }
9312 }
9313
9314 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9315 let replica_id = self.replica_id(cx);
9316 let workspace = self.workspace()?;
9317 let project = workspace.read(cx).project().clone();
9318 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9319 Some(cx.spawn(|editor, mut cx| async move {
9320 let _cleanup = defer({
9321 let mut cx = cx.clone();
9322 move || {
9323 let _ = editor.update(&mut cx, |editor, _| {
9324 if let Ok(i) =
9325 editor
9326 .find_all_references_task_sources
9327 .binary_search_by(|anchor| {
9328 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9329 })
9330 {
9331 editor.find_all_references_task_sources.remove(i);
9332 }
9333 });
9334 }
9335 });
9336
9337 let locations = references.await?;
9338 if locations.is_empty() {
9339 return anyhow::Ok(());
9340 }
9341
9342 workspace.update(&mut cx, |workspace, cx| {
9343 let title = locations
9344 .first()
9345 .as_ref()
9346 .map(|location| {
9347 let buffer = location.buffer.read(cx);
9348 format!(
9349 "References to `{}`",
9350 buffer
9351 .text_for_range(location.range.clone())
9352 .collect::<String>()
9353 )
9354 })
9355 .unwrap();
9356 Self::open_locations_in_multibuffer(
9357 workspace, locations, replica_id, title, false, cx,
9358 );
9359 })
9360 }))
9361 }
9362
9363 /// Opens a multibuffer with the given project locations in it
9364 pub fn open_locations_in_multibuffer(
9365 workspace: &mut Workspace,
9366 mut locations: Vec<Location>,
9367 replica_id: ReplicaId,
9368 title: String,
9369 split: bool,
9370 cx: &mut ViewContext<Workspace>,
9371 ) {
9372 // If there are multiple definitions, open them in a multibuffer
9373 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9374 let mut locations = locations.into_iter().peekable();
9375 let mut ranges_to_highlight = Vec::new();
9376 let capability = workspace.project().read(cx).capability();
9377
9378 let excerpt_buffer = cx.new_model(|cx| {
9379 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9380 while let Some(location) = locations.next() {
9381 let buffer = location.buffer.read(cx);
9382 let mut ranges_for_buffer = Vec::new();
9383 let range = location.range.to_offset(buffer);
9384 ranges_for_buffer.push(range.clone());
9385
9386 while let Some(next_location) = locations.peek() {
9387 if next_location.buffer == location.buffer {
9388 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9389 locations.next();
9390 } else {
9391 break;
9392 }
9393 }
9394
9395 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9396 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9397 location.buffer.clone(),
9398 ranges_for_buffer,
9399 DEFAULT_MULTIBUFFER_CONTEXT,
9400 cx,
9401 ))
9402 }
9403
9404 multibuffer.with_title(title)
9405 });
9406
9407 let editor = cx.new_view(|cx| {
9408 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9409 });
9410 editor.update(cx, |editor, cx| {
9411 if let Some(first_range) = ranges_to_highlight.first() {
9412 editor.change_selections(None, cx, |selections| {
9413 selections.clear_disjoint();
9414 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9415 });
9416 }
9417 editor.highlight_background::<Self>(
9418 &ranges_to_highlight,
9419 |theme| theme.editor_highlighted_line_background,
9420 cx,
9421 );
9422 });
9423
9424 let item = Box::new(editor);
9425 let item_id = item.item_id();
9426
9427 if split {
9428 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9429 } else {
9430 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9431 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9432 pane.close_current_preview_item(cx)
9433 } else {
9434 None
9435 }
9436 });
9437 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9438 }
9439 workspace.active_pane().update(cx, |pane, cx| {
9440 pane.set_preview_item_id(Some(item_id), cx);
9441 });
9442 }
9443
9444 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9445 use language::ToOffset as _;
9446
9447 let project = self.project.clone()?;
9448 let selection = self.selections.newest_anchor().clone();
9449 let (cursor_buffer, cursor_buffer_position) = self
9450 .buffer
9451 .read(cx)
9452 .text_anchor_for_position(selection.head(), cx)?;
9453 let (tail_buffer, cursor_buffer_position_end) = self
9454 .buffer
9455 .read(cx)
9456 .text_anchor_for_position(selection.tail(), cx)?;
9457 if tail_buffer != cursor_buffer {
9458 return None;
9459 }
9460
9461 let snapshot = cursor_buffer.read(cx).snapshot();
9462 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9463 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9464 let prepare_rename = project.update(cx, |project, cx| {
9465 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9466 });
9467 drop(snapshot);
9468
9469 Some(cx.spawn(|this, mut cx| async move {
9470 let rename_range = if let Some(range) = prepare_rename.await? {
9471 Some(range)
9472 } else {
9473 this.update(&mut cx, |this, cx| {
9474 let buffer = this.buffer.read(cx).snapshot(cx);
9475 let mut buffer_highlights = this
9476 .document_highlights_for_position(selection.head(), &buffer)
9477 .filter(|highlight| {
9478 highlight.start.excerpt_id == selection.head().excerpt_id
9479 && highlight.end.excerpt_id == selection.head().excerpt_id
9480 });
9481 buffer_highlights
9482 .next()
9483 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9484 })?
9485 };
9486 if let Some(rename_range) = rename_range {
9487 this.update(&mut cx, |this, cx| {
9488 let snapshot = cursor_buffer.read(cx).snapshot();
9489 let rename_buffer_range = rename_range.to_offset(&snapshot);
9490 let cursor_offset_in_rename_range =
9491 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9492 let cursor_offset_in_rename_range_end =
9493 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9494
9495 this.take_rename(false, cx);
9496 let buffer = this.buffer.read(cx).read(cx);
9497 let cursor_offset = selection.head().to_offset(&buffer);
9498 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9499 let rename_end = rename_start + rename_buffer_range.len();
9500 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9501 let mut old_highlight_id = None;
9502 let old_name: Arc<str> = buffer
9503 .chunks(rename_start..rename_end, true)
9504 .map(|chunk| {
9505 if old_highlight_id.is_none() {
9506 old_highlight_id = chunk.syntax_highlight_id;
9507 }
9508 chunk.text
9509 })
9510 .collect::<String>()
9511 .into();
9512
9513 drop(buffer);
9514
9515 // Position the selection in the rename editor so that it matches the current selection.
9516 this.show_local_selections = false;
9517 let rename_editor = cx.new_view(|cx| {
9518 let mut editor = Editor::single_line(cx);
9519 editor.buffer.update(cx, |buffer, cx| {
9520 buffer.edit([(0..0, old_name.clone())], None, cx)
9521 });
9522 let rename_selection_range = match cursor_offset_in_rename_range
9523 .cmp(&cursor_offset_in_rename_range_end)
9524 {
9525 Ordering::Equal => {
9526 editor.select_all(&SelectAll, cx);
9527 return editor;
9528 }
9529 Ordering::Less => {
9530 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9531 }
9532 Ordering::Greater => {
9533 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9534 }
9535 };
9536 if rename_selection_range.end > old_name.len() {
9537 editor.select_all(&SelectAll, cx);
9538 } else {
9539 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9540 s.select_ranges([rename_selection_range]);
9541 });
9542 }
9543 editor
9544 });
9545 cx.subscribe(&rename_editor, |_, _, e, cx| match e {
9546 EditorEvent::Focused => cx.emit(EditorEvent::FocusedIn),
9547 _ => {}
9548 })
9549 .detach();
9550
9551 let write_highlights =
9552 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9553 let read_highlights =
9554 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9555 let ranges = write_highlights
9556 .iter()
9557 .flat_map(|(_, ranges)| ranges.iter())
9558 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9559 .cloned()
9560 .collect();
9561
9562 this.highlight_text::<Rename>(
9563 ranges,
9564 HighlightStyle {
9565 fade_out: Some(0.6),
9566 ..Default::default()
9567 },
9568 cx,
9569 );
9570 let rename_focus_handle = rename_editor.focus_handle(cx);
9571 cx.focus(&rename_focus_handle);
9572 let block_id = this.insert_blocks(
9573 [BlockProperties {
9574 style: BlockStyle::Flex,
9575 position: range.start,
9576 height: 1,
9577 render: Box::new({
9578 let rename_editor = rename_editor.clone();
9579 move |cx: &mut BlockContext| {
9580 let mut text_style = cx.editor_style.text.clone();
9581 if let Some(highlight_style) = old_highlight_id
9582 .and_then(|h| h.style(&cx.editor_style.syntax))
9583 {
9584 text_style = text_style.highlight(highlight_style);
9585 }
9586 div()
9587 .pl(cx.anchor_x)
9588 .child(EditorElement::new(
9589 &rename_editor,
9590 EditorStyle {
9591 background: cx.theme().system().transparent,
9592 local_player: cx.editor_style.local_player,
9593 text: text_style,
9594 scrollbar_width: cx.editor_style.scrollbar_width,
9595 syntax: cx.editor_style.syntax.clone(),
9596 status: cx.editor_style.status.clone(),
9597 inlay_hints_style: HighlightStyle {
9598 color: Some(cx.theme().status().hint),
9599 font_weight: Some(FontWeight::BOLD),
9600 ..HighlightStyle::default()
9601 },
9602 suggestions_style: HighlightStyle {
9603 color: Some(cx.theme().status().predictive),
9604 ..HighlightStyle::default()
9605 },
9606 },
9607 ))
9608 .into_any_element()
9609 }
9610 }),
9611 disposition: BlockDisposition::Below,
9612 }],
9613 Some(Autoscroll::fit()),
9614 cx,
9615 )[0];
9616 this.pending_rename = Some(RenameState {
9617 range,
9618 old_name,
9619 editor: rename_editor,
9620 block_id,
9621 });
9622 })?;
9623 }
9624
9625 Ok(())
9626 }))
9627 }
9628
9629 pub fn confirm_rename(
9630 &mut self,
9631 _: &ConfirmRename,
9632 cx: &mut ViewContext<Self>,
9633 ) -> Option<Task<Result<()>>> {
9634 let rename = self.take_rename(false, cx)?;
9635 let workspace = self.workspace()?;
9636 let (start_buffer, start) = self
9637 .buffer
9638 .read(cx)
9639 .text_anchor_for_position(rename.range.start, cx)?;
9640 let (end_buffer, end) = self
9641 .buffer
9642 .read(cx)
9643 .text_anchor_for_position(rename.range.end, cx)?;
9644 if start_buffer != end_buffer {
9645 return None;
9646 }
9647
9648 let buffer = start_buffer;
9649 let range = start..end;
9650 let old_name = rename.old_name;
9651 let new_name = rename.editor.read(cx).text(cx);
9652
9653 let rename = workspace
9654 .read(cx)
9655 .project()
9656 .clone()
9657 .update(cx, |project, cx| {
9658 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9659 });
9660 let workspace = workspace.downgrade();
9661
9662 Some(cx.spawn(|editor, mut cx| async move {
9663 let project_transaction = rename.await?;
9664 Self::open_project_transaction(
9665 &editor,
9666 workspace,
9667 project_transaction,
9668 format!("Rename: {} → {}", old_name, new_name),
9669 cx.clone(),
9670 )
9671 .await?;
9672
9673 editor.update(&mut cx, |editor, cx| {
9674 editor.refresh_document_highlights(cx);
9675 })?;
9676 Ok(())
9677 }))
9678 }
9679
9680 fn take_rename(
9681 &mut self,
9682 moving_cursor: bool,
9683 cx: &mut ViewContext<Self>,
9684 ) -> Option<RenameState> {
9685 let rename = self.pending_rename.take()?;
9686 if rename.editor.focus_handle(cx).is_focused(cx) {
9687 cx.focus(&self.focus_handle);
9688 }
9689
9690 self.remove_blocks(
9691 [rename.block_id].into_iter().collect(),
9692 Some(Autoscroll::fit()),
9693 cx,
9694 );
9695 self.clear_highlights::<Rename>(cx);
9696 self.show_local_selections = true;
9697
9698 if moving_cursor {
9699 let rename_editor = rename.editor.read(cx);
9700 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9701
9702 // Update the selection to match the position of the selection inside
9703 // the rename editor.
9704 let snapshot = self.buffer.read(cx).read(cx);
9705 let rename_range = rename.range.to_offset(&snapshot);
9706 let cursor_in_editor = snapshot
9707 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9708 .min(rename_range.end);
9709 drop(snapshot);
9710
9711 self.change_selections(None, cx, |s| {
9712 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9713 });
9714 } else {
9715 self.refresh_document_highlights(cx);
9716 }
9717
9718 Some(rename)
9719 }
9720
9721 pub fn pending_rename(&self) -> Option<&RenameState> {
9722 self.pending_rename.as_ref()
9723 }
9724
9725 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9726 let project = match &self.project {
9727 Some(project) => project.clone(),
9728 None => return None,
9729 };
9730
9731 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9732 }
9733
9734 fn perform_format(
9735 &mut self,
9736 project: Model<Project>,
9737 trigger: FormatTrigger,
9738 cx: &mut ViewContext<Self>,
9739 ) -> Task<Result<()>> {
9740 let buffer = self.buffer().clone();
9741 let mut buffers = buffer.read(cx).all_buffers();
9742 if trigger == FormatTrigger::Save {
9743 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9744 }
9745
9746 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9747 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9748
9749 cx.spawn(|_, mut cx| async move {
9750 let transaction = futures::select_biased! {
9751 () = timeout => {
9752 log::warn!("timed out waiting for formatting");
9753 None
9754 }
9755 transaction = format.log_err().fuse() => transaction,
9756 };
9757
9758 buffer
9759 .update(&mut cx, |buffer, cx| {
9760 if let Some(transaction) = transaction {
9761 if !buffer.is_singleton() {
9762 buffer.push_transaction(&transaction.0, cx);
9763 }
9764 }
9765
9766 cx.notify();
9767 })
9768 .ok();
9769
9770 Ok(())
9771 })
9772 }
9773
9774 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9775 if let Some(project) = self.project.clone() {
9776 self.buffer.update(cx, |multi_buffer, cx| {
9777 project.update(cx, |project, cx| {
9778 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9779 });
9780 })
9781 }
9782 }
9783
9784 fn cancel_language_server_work(
9785 &mut self,
9786 _: &CancelLanguageServerWork,
9787 cx: &mut ViewContext<Self>,
9788 ) {
9789 if let Some(project) = self.project.clone() {
9790 self.buffer.update(cx, |multi_buffer, cx| {
9791 project.update(cx, |project, cx| {
9792 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
9793 });
9794 })
9795 }
9796 }
9797
9798 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9799 cx.show_character_palette();
9800 }
9801
9802 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9803 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9804 let buffer = self.buffer.read(cx).snapshot(cx);
9805 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9806 let is_valid = buffer
9807 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9808 .any(|entry| {
9809 entry.diagnostic.is_primary
9810 && !entry.range.is_empty()
9811 && entry.range.start == primary_range_start
9812 && entry.diagnostic.message == active_diagnostics.primary_message
9813 });
9814
9815 if is_valid != active_diagnostics.is_valid {
9816 active_diagnostics.is_valid = is_valid;
9817 let mut new_styles = HashMap::default();
9818 for (block_id, diagnostic) in &active_diagnostics.blocks {
9819 new_styles.insert(
9820 *block_id,
9821 (
9822 None,
9823 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
9824 ),
9825 );
9826 }
9827 self.display_map.update(cx, |display_map, cx| {
9828 display_map.replace_blocks(new_styles, cx)
9829 });
9830 }
9831 }
9832 }
9833
9834 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9835 self.dismiss_diagnostics(cx);
9836 let snapshot = self.snapshot(cx);
9837 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9838 let buffer = self.buffer.read(cx).snapshot(cx);
9839
9840 let mut primary_range = None;
9841 let mut primary_message = None;
9842 let mut group_end = Point::zero();
9843 let diagnostic_group = buffer
9844 .diagnostic_group::<MultiBufferPoint>(group_id)
9845 .filter_map(|entry| {
9846 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9847 && (entry.range.start.row == entry.range.end.row
9848 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9849 {
9850 return None;
9851 }
9852 if entry.range.end > group_end {
9853 group_end = entry.range.end;
9854 }
9855 if entry.diagnostic.is_primary {
9856 primary_range = Some(entry.range.clone());
9857 primary_message = Some(entry.diagnostic.message.clone());
9858 }
9859 Some(entry)
9860 })
9861 .collect::<Vec<_>>();
9862 let primary_range = primary_range?;
9863 let primary_message = primary_message?;
9864 let primary_range =
9865 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9866
9867 let blocks = display_map
9868 .insert_blocks(
9869 diagnostic_group.iter().map(|entry| {
9870 let diagnostic = entry.diagnostic.clone();
9871 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9872 BlockProperties {
9873 style: BlockStyle::Fixed,
9874 position: buffer.anchor_after(entry.range.start),
9875 height: message_height,
9876 render: diagnostic_block_renderer(diagnostic, None, true, true),
9877 disposition: BlockDisposition::Below,
9878 }
9879 }),
9880 cx,
9881 )
9882 .into_iter()
9883 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9884 .collect();
9885
9886 Some(ActiveDiagnosticGroup {
9887 primary_range,
9888 primary_message,
9889 group_id,
9890 blocks,
9891 is_valid: true,
9892 })
9893 });
9894 self.active_diagnostics.is_some()
9895 }
9896
9897 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9898 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9899 self.display_map.update(cx, |display_map, cx| {
9900 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9901 });
9902 cx.notify();
9903 }
9904 }
9905
9906 pub fn set_selections_from_remote(
9907 &mut self,
9908 selections: Vec<Selection<Anchor>>,
9909 pending_selection: Option<Selection<Anchor>>,
9910 cx: &mut ViewContext<Self>,
9911 ) {
9912 let old_cursor_position = self.selections.newest_anchor().head();
9913 self.selections.change_with(cx, |s| {
9914 s.select_anchors(selections);
9915 if let Some(pending_selection) = pending_selection {
9916 s.set_pending(pending_selection, SelectMode::Character);
9917 } else {
9918 s.clear_pending();
9919 }
9920 });
9921 self.selections_did_change(false, &old_cursor_position, true, cx);
9922 }
9923
9924 fn push_to_selection_history(&mut self) {
9925 self.selection_history.push(SelectionHistoryEntry {
9926 selections: self.selections.disjoint_anchors(),
9927 select_next_state: self.select_next_state.clone(),
9928 select_prev_state: self.select_prev_state.clone(),
9929 add_selections_state: self.add_selections_state.clone(),
9930 });
9931 }
9932
9933 pub fn transact(
9934 &mut self,
9935 cx: &mut ViewContext<Self>,
9936 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9937 ) -> Option<TransactionId> {
9938 self.start_transaction_at(Instant::now(), cx);
9939 update(self, cx);
9940 self.end_transaction_at(Instant::now(), cx)
9941 }
9942
9943 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9944 self.end_selection(cx);
9945 if let Some(tx_id) = self
9946 .buffer
9947 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9948 {
9949 self.selection_history
9950 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9951 cx.emit(EditorEvent::TransactionBegun {
9952 transaction_id: tx_id,
9953 })
9954 }
9955 }
9956
9957 fn end_transaction_at(
9958 &mut self,
9959 now: Instant,
9960 cx: &mut ViewContext<Self>,
9961 ) -> Option<TransactionId> {
9962 if let Some(transaction_id) = self
9963 .buffer
9964 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9965 {
9966 if let Some((_, end_selections)) =
9967 self.selection_history.transaction_mut(transaction_id)
9968 {
9969 *end_selections = Some(self.selections.disjoint_anchors());
9970 } else {
9971 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9972 }
9973
9974 cx.emit(EditorEvent::Edited { transaction_id });
9975 Some(transaction_id)
9976 } else {
9977 None
9978 }
9979 }
9980
9981 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9982 let mut fold_ranges = Vec::new();
9983
9984 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9985
9986 let selections = self.selections.all_adjusted(cx);
9987 for selection in selections {
9988 let range = selection.range().sorted();
9989 let buffer_start_row = range.start.row;
9990
9991 for row in (0..=range.end.row).rev() {
9992 if let Some((foldable_range, fold_text)) =
9993 display_map.foldable_range(MultiBufferRow(row))
9994 {
9995 if foldable_range.end.row >= buffer_start_row {
9996 fold_ranges.push((foldable_range, fold_text));
9997 if row <= range.start.row {
9998 break;
9999 }
10000 }
10001 }
10002 }
10003 }
10004
10005 self.fold_ranges(fold_ranges, true, cx);
10006 }
10007
10008 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10009 let buffer_row = fold_at.buffer_row;
10010 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10011
10012 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10013 let autoscroll = self
10014 .selections
10015 .all::<Point>(cx)
10016 .iter()
10017 .any(|selection| fold_range.overlaps(&selection.range()));
10018
10019 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10020 }
10021 }
10022
10023 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10024 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10025 let buffer = &display_map.buffer_snapshot;
10026 let selections = self.selections.all::<Point>(cx);
10027 let ranges = selections
10028 .iter()
10029 .map(|s| {
10030 let range = s.display_range(&display_map).sorted();
10031 let mut start = range.start.to_point(&display_map);
10032 let mut end = range.end.to_point(&display_map);
10033 start.column = 0;
10034 end.column = buffer.line_len(MultiBufferRow(end.row));
10035 start..end
10036 })
10037 .collect::<Vec<_>>();
10038
10039 self.unfold_ranges(ranges, true, true, cx);
10040 }
10041
10042 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10043 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10044
10045 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10046 ..Point::new(
10047 unfold_at.buffer_row.0,
10048 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10049 );
10050
10051 let autoscroll = self
10052 .selections
10053 .all::<Point>(cx)
10054 .iter()
10055 .any(|selection| selection.range().overlaps(&intersection_range));
10056
10057 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10058 }
10059
10060 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10061 let selections = self.selections.all::<Point>(cx);
10062 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10063 let line_mode = self.selections.line_mode;
10064 let ranges = selections.into_iter().map(|s| {
10065 if line_mode {
10066 let start = Point::new(s.start.row, 0);
10067 let end = Point::new(
10068 s.end.row,
10069 display_map
10070 .buffer_snapshot
10071 .line_len(MultiBufferRow(s.end.row)),
10072 );
10073 (start..end, display_map.fold_placeholder.clone())
10074 } else {
10075 (s.start..s.end, display_map.fold_placeholder.clone())
10076 }
10077 });
10078 self.fold_ranges(ranges, true, cx);
10079 }
10080
10081 pub fn fold_ranges<T: ToOffset + Clone>(
10082 &mut self,
10083 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10084 auto_scroll: bool,
10085 cx: &mut ViewContext<Self>,
10086 ) {
10087 let mut fold_ranges = Vec::new();
10088 let mut buffers_affected = HashMap::default();
10089 let multi_buffer = self.buffer().read(cx);
10090 for (fold_range, fold_text) in ranges {
10091 if let Some((_, buffer, _)) =
10092 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10093 {
10094 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10095 };
10096 fold_ranges.push((fold_range, fold_text));
10097 }
10098
10099 let mut ranges = fold_ranges.into_iter().peekable();
10100 if ranges.peek().is_some() {
10101 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10102
10103 if auto_scroll {
10104 self.request_autoscroll(Autoscroll::fit(), cx);
10105 }
10106
10107 for buffer in buffers_affected.into_values() {
10108 self.sync_expanded_diff_hunks(buffer, cx);
10109 }
10110
10111 cx.notify();
10112
10113 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10114 // Clear diagnostics block when folding a range that contains it.
10115 let snapshot = self.snapshot(cx);
10116 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10117 drop(snapshot);
10118 self.active_diagnostics = Some(active_diagnostics);
10119 self.dismiss_diagnostics(cx);
10120 } else {
10121 self.active_diagnostics = Some(active_diagnostics);
10122 }
10123 }
10124
10125 self.scrollbar_marker_state.dirty = true;
10126 }
10127 }
10128
10129 pub fn unfold_ranges<T: ToOffset + Clone>(
10130 &mut self,
10131 ranges: impl IntoIterator<Item = Range<T>>,
10132 inclusive: bool,
10133 auto_scroll: bool,
10134 cx: &mut ViewContext<Self>,
10135 ) {
10136 let mut unfold_ranges = Vec::new();
10137 let mut buffers_affected = HashMap::default();
10138 let multi_buffer = self.buffer().read(cx);
10139 for range in ranges {
10140 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10141 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10142 };
10143 unfold_ranges.push(range);
10144 }
10145
10146 let mut ranges = unfold_ranges.into_iter().peekable();
10147 if ranges.peek().is_some() {
10148 self.display_map
10149 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10150 if auto_scroll {
10151 self.request_autoscroll(Autoscroll::fit(), cx);
10152 }
10153
10154 for buffer in buffers_affected.into_values() {
10155 self.sync_expanded_diff_hunks(buffer, cx);
10156 }
10157
10158 cx.notify();
10159 self.scrollbar_marker_state.dirty = true;
10160 self.active_indent_guides_state.dirty = true;
10161 }
10162 }
10163
10164 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10165 if hovered != self.gutter_hovered {
10166 self.gutter_hovered = hovered;
10167 cx.notify();
10168 }
10169 }
10170
10171 pub fn insert_blocks(
10172 &mut self,
10173 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10174 autoscroll: Option<Autoscroll>,
10175 cx: &mut ViewContext<Self>,
10176 ) -> Vec<CustomBlockId> {
10177 let blocks = self
10178 .display_map
10179 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10180 if let Some(autoscroll) = autoscroll {
10181 self.request_autoscroll(autoscroll, cx);
10182 }
10183 blocks
10184 }
10185
10186 pub fn replace_blocks(
10187 &mut self,
10188 blocks: HashMap<CustomBlockId, (Option<u8>, RenderBlock)>,
10189 autoscroll: Option<Autoscroll>,
10190 cx: &mut ViewContext<Self>,
10191 ) {
10192 self.display_map
10193 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
10194 if let Some(autoscroll) = autoscroll {
10195 self.request_autoscroll(autoscroll, cx);
10196 }
10197 }
10198
10199 pub fn remove_blocks(
10200 &mut self,
10201 block_ids: HashSet<CustomBlockId>,
10202 autoscroll: Option<Autoscroll>,
10203 cx: &mut ViewContext<Self>,
10204 ) {
10205 self.display_map.update(cx, |display_map, cx| {
10206 display_map.remove_blocks(block_ids, cx)
10207 });
10208 if let Some(autoscroll) = autoscroll {
10209 self.request_autoscroll(autoscroll, cx);
10210 }
10211 }
10212
10213 pub fn row_for_block(
10214 &self,
10215 block_id: CustomBlockId,
10216 cx: &mut ViewContext<Self>,
10217 ) -> Option<DisplayRow> {
10218 self.display_map
10219 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10220 }
10221
10222 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10223 self.focused_block = Some(focused_block);
10224 }
10225
10226 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10227 self.focused_block.take()
10228 }
10229
10230 pub fn insert_creases(
10231 &mut self,
10232 creases: impl IntoIterator<Item = Crease>,
10233 cx: &mut ViewContext<Self>,
10234 ) -> Vec<CreaseId> {
10235 self.display_map
10236 .update(cx, |map, cx| map.insert_creases(creases, cx))
10237 }
10238
10239 pub fn remove_creases(
10240 &mut self,
10241 ids: impl IntoIterator<Item = CreaseId>,
10242 cx: &mut ViewContext<Self>,
10243 ) {
10244 self.display_map
10245 .update(cx, |map, cx| map.remove_creases(ids, cx));
10246 }
10247
10248 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10249 self.display_map
10250 .update(cx, |map, cx| map.snapshot(cx))
10251 .longest_row()
10252 }
10253
10254 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10255 self.display_map
10256 .update(cx, |map, cx| map.snapshot(cx))
10257 .max_point()
10258 }
10259
10260 pub fn text(&self, cx: &AppContext) -> String {
10261 self.buffer.read(cx).read(cx).text()
10262 }
10263
10264 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10265 let text = self.text(cx);
10266 let text = text.trim();
10267
10268 if text.is_empty() {
10269 return None;
10270 }
10271
10272 Some(text.to_string())
10273 }
10274
10275 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10276 self.transact(cx, |this, cx| {
10277 this.buffer
10278 .read(cx)
10279 .as_singleton()
10280 .expect("you can only call set_text on editors for singleton buffers")
10281 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10282 });
10283 }
10284
10285 pub fn display_text(&self, cx: &mut AppContext) -> String {
10286 self.display_map
10287 .update(cx, |map, cx| map.snapshot(cx))
10288 .text()
10289 }
10290
10291 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10292 let mut wrap_guides = smallvec::smallvec![];
10293
10294 if self.show_wrap_guides == Some(false) {
10295 return wrap_guides;
10296 }
10297
10298 let settings = self.buffer.read(cx).settings_at(0, cx);
10299 if settings.show_wrap_guides {
10300 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10301 wrap_guides.push((soft_wrap as usize, true));
10302 }
10303 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10304 }
10305
10306 wrap_guides
10307 }
10308
10309 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10310 let settings = self.buffer.read(cx).settings_at(0, cx);
10311 let mode = self
10312 .soft_wrap_mode_override
10313 .unwrap_or_else(|| settings.soft_wrap);
10314 match mode {
10315 language_settings::SoftWrap::None => SoftWrap::None,
10316 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10317 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10318 language_settings::SoftWrap::PreferredLineLength => {
10319 SoftWrap::Column(settings.preferred_line_length)
10320 }
10321 }
10322 }
10323
10324 pub fn set_soft_wrap_mode(
10325 &mut self,
10326 mode: language_settings::SoftWrap,
10327 cx: &mut ViewContext<Self>,
10328 ) {
10329 self.soft_wrap_mode_override = Some(mode);
10330 cx.notify();
10331 }
10332
10333 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10334 let rem_size = cx.rem_size();
10335 self.display_map.update(cx, |map, cx| {
10336 map.set_font(
10337 style.text.font(),
10338 style.text.font_size.to_pixels(rem_size),
10339 cx,
10340 )
10341 });
10342 self.style = Some(style);
10343 }
10344
10345 pub fn style(&self) -> Option<&EditorStyle> {
10346 self.style.as_ref()
10347 }
10348
10349 // Called by the element. This method is not designed to be called outside of the editor
10350 // element's layout code because it does not notify when rewrapping is computed synchronously.
10351 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10352 self.display_map
10353 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10354 }
10355
10356 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10357 if self.soft_wrap_mode_override.is_some() {
10358 self.soft_wrap_mode_override.take();
10359 } else {
10360 let soft_wrap = match self.soft_wrap_mode(cx) {
10361 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10362 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
10363 language_settings::SoftWrap::PreferLine
10364 }
10365 };
10366 self.soft_wrap_mode_override = Some(soft_wrap);
10367 }
10368 cx.notify();
10369 }
10370
10371 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10372 let Some(workspace) = self.workspace() else {
10373 return;
10374 };
10375 let fs = workspace.read(cx).app_state().fs.clone();
10376 let current_show = TabBarSettings::get_global(cx).show;
10377 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
10378 setting.show = Some(!current_show);
10379 });
10380 }
10381
10382 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10383 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10384 self.buffer
10385 .read(cx)
10386 .settings_at(0, cx)
10387 .indent_guides
10388 .enabled
10389 });
10390 self.show_indent_guides = Some(!currently_enabled);
10391 cx.notify();
10392 }
10393
10394 fn should_show_indent_guides(&self) -> Option<bool> {
10395 self.show_indent_guides
10396 }
10397
10398 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10399 let mut editor_settings = EditorSettings::get_global(cx).clone();
10400 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10401 EditorSettings::override_global(editor_settings, cx);
10402 }
10403
10404 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10405 self.show_gutter = show_gutter;
10406 cx.notify();
10407 }
10408
10409 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10410 self.show_line_numbers = Some(show_line_numbers);
10411 cx.notify();
10412 }
10413
10414 pub fn set_show_git_diff_gutter(
10415 &mut self,
10416 show_git_diff_gutter: bool,
10417 cx: &mut ViewContext<Self>,
10418 ) {
10419 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10420 cx.notify();
10421 }
10422
10423 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10424 self.show_code_actions = Some(show_code_actions);
10425 cx.notify();
10426 }
10427
10428 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10429 self.show_runnables = Some(show_runnables);
10430 cx.notify();
10431 }
10432
10433 pub fn set_redact_all(&mut self, redact_all: bool, cx: &mut ViewContext<Self>) {
10434 self.redact_all = redact_all;
10435 cx.notify();
10436 }
10437
10438 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10439 self.show_wrap_guides = Some(show_wrap_guides);
10440 cx.notify();
10441 }
10442
10443 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10444 self.show_indent_guides = Some(show_indent_guides);
10445 cx.notify();
10446 }
10447
10448 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10449 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10450 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10451 if let Some(dir) = file.abs_path(cx).parent() {
10452 return Some(dir.to_owned());
10453 }
10454 }
10455
10456 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10457 return Some(project_path.path.to_path_buf());
10458 }
10459 }
10460
10461 None
10462 }
10463
10464 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
10465 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10466 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10467 cx.reveal_path(&file.abs_path(cx));
10468 }
10469 }
10470 }
10471
10472 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10473 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10474 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10475 if let Some(path) = file.abs_path(cx).to_str() {
10476 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10477 }
10478 }
10479 }
10480 }
10481
10482 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10483 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10484 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10485 if let Some(path) = file.path().to_str() {
10486 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10487 }
10488 }
10489 }
10490 }
10491
10492 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10493 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10494
10495 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10496 self.start_git_blame(true, cx);
10497 }
10498
10499 cx.notify();
10500 }
10501
10502 pub fn toggle_git_blame_inline(
10503 &mut self,
10504 _: &ToggleGitBlameInline,
10505 cx: &mut ViewContext<Self>,
10506 ) {
10507 self.toggle_git_blame_inline_internal(true, cx);
10508 cx.notify();
10509 }
10510
10511 pub fn git_blame_inline_enabled(&self) -> bool {
10512 self.git_blame_inline_enabled
10513 }
10514
10515 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10516 self.show_selection_menu = self
10517 .show_selection_menu
10518 .map(|show_selections_menu| !show_selections_menu)
10519 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10520
10521 cx.notify();
10522 }
10523
10524 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10525 self.show_selection_menu
10526 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10527 }
10528
10529 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10530 if let Some(project) = self.project.as_ref() {
10531 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10532 return;
10533 };
10534
10535 if buffer.read(cx).file().is_none() {
10536 return;
10537 }
10538
10539 let focused = self.focus_handle(cx).contains_focused(cx);
10540
10541 let project = project.clone();
10542 let blame =
10543 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10544 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10545 self.blame = Some(blame);
10546 }
10547 }
10548
10549 fn toggle_git_blame_inline_internal(
10550 &mut self,
10551 user_triggered: bool,
10552 cx: &mut ViewContext<Self>,
10553 ) {
10554 if self.git_blame_inline_enabled {
10555 self.git_blame_inline_enabled = false;
10556 self.show_git_blame_inline = false;
10557 self.show_git_blame_inline_delay_task.take();
10558 } else {
10559 self.git_blame_inline_enabled = true;
10560 self.start_git_blame_inline(user_triggered, cx);
10561 }
10562
10563 cx.notify();
10564 }
10565
10566 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10567 self.start_git_blame(user_triggered, cx);
10568
10569 if ProjectSettings::get_global(cx)
10570 .git
10571 .inline_blame_delay()
10572 .is_some()
10573 {
10574 self.start_inline_blame_timer(cx);
10575 } else {
10576 self.show_git_blame_inline = true
10577 }
10578 }
10579
10580 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10581 self.blame.as_ref()
10582 }
10583
10584 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10585 self.show_git_blame_gutter && self.has_blame_entries(cx)
10586 }
10587
10588 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10589 self.show_git_blame_inline
10590 && self.focus_handle.is_focused(cx)
10591 && !self.newest_selection_head_on_empty_line(cx)
10592 && self.has_blame_entries(cx)
10593 }
10594
10595 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10596 self.blame()
10597 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10598 }
10599
10600 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10601 let cursor_anchor = self.selections.newest_anchor().head();
10602
10603 let snapshot = self.buffer.read(cx).snapshot(cx);
10604 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10605
10606 snapshot.line_len(buffer_row) == 0
10607 }
10608
10609 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10610 let (path, selection, repo) = maybe!({
10611 let project_handle = self.project.as_ref()?.clone();
10612 let project = project_handle.read(cx);
10613
10614 let selection = self.selections.newest::<Point>(cx);
10615 let selection_range = selection.range();
10616
10617 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10618 (buffer, selection_range.start.row..selection_range.end.row)
10619 } else {
10620 let buffer_ranges = self
10621 .buffer()
10622 .read(cx)
10623 .range_to_buffer_ranges(selection_range, cx);
10624
10625 let (buffer, range, _) = if selection.reversed {
10626 buffer_ranges.first()
10627 } else {
10628 buffer_ranges.last()
10629 }?;
10630
10631 let snapshot = buffer.read(cx).snapshot();
10632 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10633 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10634 (buffer.clone(), selection)
10635 };
10636
10637 let path = buffer
10638 .read(cx)
10639 .file()?
10640 .as_local()?
10641 .path()
10642 .to_str()?
10643 .to_string();
10644 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10645 Some((path, selection, repo))
10646 })
10647 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10648
10649 const REMOTE_NAME: &str = "origin";
10650 let origin_url = repo
10651 .remote_url(REMOTE_NAME)
10652 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10653 let sha = repo
10654 .head_sha()
10655 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10656
10657 let (provider, remote) =
10658 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10659 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10660
10661 Ok(provider.build_permalink(
10662 remote,
10663 BuildPermalinkParams {
10664 sha: &sha,
10665 path: &path,
10666 selection: Some(selection),
10667 },
10668 ))
10669 }
10670
10671 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10672 let permalink = self.get_permalink_to_line(cx);
10673
10674 match permalink {
10675 Ok(permalink) => {
10676 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10677 }
10678 Err(err) => {
10679 let message = format!("Failed to copy permalink: {err}");
10680
10681 Err::<(), anyhow::Error>(err).log_err();
10682
10683 if let Some(workspace) = self.workspace() {
10684 workspace.update(cx, |workspace, cx| {
10685 struct CopyPermalinkToLine;
10686
10687 workspace.show_toast(
10688 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10689 cx,
10690 )
10691 })
10692 }
10693 }
10694 }
10695 }
10696
10697 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10698 let permalink = self.get_permalink_to_line(cx);
10699
10700 match permalink {
10701 Ok(permalink) => {
10702 cx.open_url(permalink.as_ref());
10703 }
10704 Err(err) => {
10705 let message = format!("Failed to open permalink: {err}");
10706
10707 Err::<(), anyhow::Error>(err).log_err();
10708
10709 if let Some(workspace) = self.workspace() {
10710 workspace.update(cx, |workspace, cx| {
10711 struct OpenPermalinkToLine;
10712
10713 workspace.show_toast(
10714 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10715 cx,
10716 )
10717 })
10718 }
10719 }
10720 }
10721 }
10722
10723 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10724 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10725 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10726 pub fn highlight_rows<T: 'static>(
10727 &mut self,
10728 rows: RangeInclusive<Anchor>,
10729 color: Option<Hsla>,
10730 should_autoscroll: bool,
10731 cx: &mut ViewContext<Self>,
10732 ) {
10733 let snapshot = self.buffer().read(cx).snapshot(cx);
10734 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10735 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10736 highlight
10737 .range
10738 .start()
10739 .cmp(&rows.start(), &snapshot)
10740 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10741 });
10742 match (color, existing_highlight_index) {
10743 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10744 ix,
10745 RowHighlight {
10746 index: post_inc(&mut self.highlight_order),
10747 range: rows,
10748 should_autoscroll,
10749 color,
10750 },
10751 ),
10752 (None, Ok(i)) => {
10753 row_highlights.remove(i);
10754 }
10755 }
10756 }
10757
10758 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10759 pub fn clear_row_highlights<T: 'static>(&mut self) {
10760 self.highlighted_rows.remove(&TypeId::of::<T>());
10761 }
10762
10763 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10764 pub fn highlighted_rows<T: 'static>(
10765 &self,
10766 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10767 Some(
10768 self.highlighted_rows
10769 .get(&TypeId::of::<T>())?
10770 .iter()
10771 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10772 )
10773 }
10774
10775 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10776 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10777 /// Allows to ignore certain kinds of highlights.
10778 pub fn highlighted_display_rows(
10779 &mut self,
10780 cx: &mut WindowContext,
10781 ) -> BTreeMap<DisplayRow, Hsla> {
10782 let snapshot = self.snapshot(cx);
10783 let mut used_highlight_orders = HashMap::default();
10784 self.highlighted_rows
10785 .iter()
10786 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10787 .fold(
10788 BTreeMap::<DisplayRow, Hsla>::new(),
10789 |mut unique_rows, highlight| {
10790 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10791 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10792 for row in start_row.0..=end_row.0 {
10793 let used_index =
10794 used_highlight_orders.entry(row).or_insert(highlight.index);
10795 if highlight.index >= *used_index {
10796 *used_index = highlight.index;
10797 match highlight.color {
10798 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10799 None => unique_rows.remove(&DisplayRow(row)),
10800 };
10801 }
10802 }
10803 unique_rows
10804 },
10805 )
10806 }
10807
10808 pub fn highlighted_display_row_for_autoscroll(
10809 &self,
10810 snapshot: &DisplaySnapshot,
10811 ) -> Option<DisplayRow> {
10812 self.highlighted_rows
10813 .values()
10814 .flat_map(|highlighted_rows| highlighted_rows.iter())
10815 .filter_map(|highlight| {
10816 if highlight.color.is_none() || !highlight.should_autoscroll {
10817 return None;
10818 }
10819 Some(highlight.range.start().to_display_point(&snapshot).row())
10820 })
10821 .min()
10822 }
10823
10824 pub fn set_search_within_ranges(
10825 &mut self,
10826 ranges: &[Range<Anchor>],
10827 cx: &mut ViewContext<Self>,
10828 ) {
10829 self.highlight_background::<SearchWithinRange>(
10830 ranges,
10831 |colors| colors.editor_document_highlight_read_background,
10832 cx,
10833 )
10834 }
10835
10836 pub fn set_breadcrumb_header(&mut self, new_header: String) {
10837 self.breadcrumb_header = Some(new_header);
10838 }
10839
10840 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10841 self.clear_background_highlights::<SearchWithinRange>(cx);
10842 }
10843
10844 pub fn highlight_background<T: 'static>(
10845 &mut self,
10846 ranges: &[Range<Anchor>],
10847 color_fetcher: fn(&ThemeColors) -> Hsla,
10848 cx: &mut ViewContext<Self>,
10849 ) {
10850 self.background_highlights
10851 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10852 self.scrollbar_marker_state.dirty = true;
10853 cx.notify();
10854 }
10855
10856 pub fn clear_background_highlights<T: 'static>(
10857 &mut self,
10858 cx: &mut ViewContext<Self>,
10859 ) -> Option<BackgroundHighlight> {
10860 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10861 if !text_highlights.1.is_empty() {
10862 self.scrollbar_marker_state.dirty = true;
10863 cx.notify();
10864 }
10865 Some(text_highlights)
10866 }
10867
10868 pub fn highlight_gutter<T: 'static>(
10869 &mut self,
10870 ranges: &[Range<Anchor>],
10871 color_fetcher: fn(&AppContext) -> Hsla,
10872 cx: &mut ViewContext<Self>,
10873 ) {
10874 self.gutter_highlights
10875 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10876 cx.notify();
10877 }
10878
10879 pub fn clear_gutter_highlights<T: 'static>(
10880 &mut self,
10881 cx: &mut ViewContext<Self>,
10882 ) -> Option<GutterHighlight> {
10883 cx.notify();
10884 self.gutter_highlights.remove(&TypeId::of::<T>())
10885 }
10886
10887 #[cfg(feature = "test-support")]
10888 pub fn all_text_background_highlights(
10889 &mut self,
10890 cx: &mut ViewContext<Self>,
10891 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10892 let snapshot = self.snapshot(cx);
10893 let buffer = &snapshot.buffer_snapshot;
10894 let start = buffer.anchor_before(0);
10895 let end = buffer.anchor_after(buffer.len());
10896 let theme = cx.theme().colors();
10897 self.background_highlights_in_range(start..end, &snapshot, theme)
10898 }
10899
10900 #[cfg(feature = "test-support")]
10901 pub fn search_background_highlights(
10902 &mut self,
10903 cx: &mut ViewContext<Self>,
10904 ) -> Vec<Range<Point>> {
10905 let snapshot = self.buffer().read(cx).snapshot(cx);
10906
10907 let highlights = self
10908 .background_highlights
10909 .get(&TypeId::of::<items::BufferSearchHighlights>());
10910
10911 if let Some((_color, ranges)) = highlights {
10912 ranges
10913 .iter()
10914 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10915 .collect_vec()
10916 } else {
10917 vec![]
10918 }
10919 }
10920
10921 fn document_highlights_for_position<'a>(
10922 &'a self,
10923 position: Anchor,
10924 buffer: &'a MultiBufferSnapshot,
10925 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10926 let read_highlights = self
10927 .background_highlights
10928 .get(&TypeId::of::<DocumentHighlightRead>())
10929 .map(|h| &h.1);
10930 let write_highlights = self
10931 .background_highlights
10932 .get(&TypeId::of::<DocumentHighlightWrite>())
10933 .map(|h| &h.1);
10934 let left_position = position.bias_left(buffer);
10935 let right_position = position.bias_right(buffer);
10936 read_highlights
10937 .into_iter()
10938 .chain(write_highlights)
10939 .flat_map(move |ranges| {
10940 let start_ix = match ranges.binary_search_by(|probe| {
10941 let cmp = probe.end.cmp(&left_position, buffer);
10942 if cmp.is_ge() {
10943 Ordering::Greater
10944 } else {
10945 Ordering::Less
10946 }
10947 }) {
10948 Ok(i) | Err(i) => i,
10949 };
10950
10951 ranges[start_ix..]
10952 .iter()
10953 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10954 })
10955 }
10956
10957 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10958 self.background_highlights
10959 .get(&TypeId::of::<T>())
10960 .map_or(false, |(_, highlights)| !highlights.is_empty())
10961 }
10962
10963 pub fn background_highlights_in_range(
10964 &self,
10965 search_range: Range<Anchor>,
10966 display_snapshot: &DisplaySnapshot,
10967 theme: &ThemeColors,
10968 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10969 let mut results = Vec::new();
10970 for (color_fetcher, ranges) in self.background_highlights.values() {
10971 let color = color_fetcher(theme);
10972 let start_ix = match ranges.binary_search_by(|probe| {
10973 let cmp = probe
10974 .end
10975 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10976 if cmp.is_gt() {
10977 Ordering::Greater
10978 } else {
10979 Ordering::Less
10980 }
10981 }) {
10982 Ok(i) | Err(i) => i,
10983 };
10984 for range in &ranges[start_ix..] {
10985 if range
10986 .start
10987 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10988 .is_ge()
10989 {
10990 break;
10991 }
10992
10993 let start = range.start.to_display_point(&display_snapshot);
10994 let end = range.end.to_display_point(&display_snapshot);
10995 results.push((start..end, color))
10996 }
10997 }
10998 results
10999 }
11000
11001 pub fn background_highlight_row_ranges<T: 'static>(
11002 &self,
11003 search_range: Range<Anchor>,
11004 display_snapshot: &DisplaySnapshot,
11005 count: usize,
11006 ) -> Vec<RangeInclusive<DisplayPoint>> {
11007 let mut results = Vec::new();
11008 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11009 return vec![];
11010 };
11011
11012 let start_ix = match ranges.binary_search_by(|probe| {
11013 let cmp = probe
11014 .end
11015 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11016 if cmp.is_gt() {
11017 Ordering::Greater
11018 } else {
11019 Ordering::Less
11020 }
11021 }) {
11022 Ok(i) | Err(i) => i,
11023 };
11024 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11025 if let (Some(start_display), Some(end_display)) = (start, end) {
11026 results.push(
11027 start_display.to_display_point(display_snapshot)
11028 ..=end_display.to_display_point(display_snapshot),
11029 );
11030 }
11031 };
11032 let mut start_row: Option<Point> = None;
11033 let mut end_row: Option<Point> = None;
11034 if ranges.len() > count {
11035 return Vec::new();
11036 }
11037 for range in &ranges[start_ix..] {
11038 if range
11039 .start
11040 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11041 .is_ge()
11042 {
11043 break;
11044 }
11045 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11046 if let Some(current_row) = &end_row {
11047 if end.row == current_row.row {
11048 continue;
11049 }
11050 }
11051 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11052 if start_row.is_none() {
11053 assert_eq!(end_row, None);
11054 start_row = Some(start);
11055 end_row = Some(end);
11056 continue;
11057 }
11058 if let Some(current_end) = end_row.as_mut() {
11059 if start.row > current_end.row + 1 {
11060 push_region(start_row, end_row);
11061 start_row = Some(start);
11062 end_row = Some(end);
11063 } else {
11064 // Merge two hunks.
11065 *current_end = end;
11066 }
11067 } else {
11068 unreachable!();
11069 }
11070 }
11071 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11072 push_region(start_row, end_row);
11073 results
11074 }
11075
11076 pub fn gutter_highlights_in_range(
11077 &self,
11078 search_range: Range<Anchor>,
11079 display_snapshot: &DisplaySnapshot,
11080 cx: &AppContext,
11081 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11082 let mut results = Vec::new();
11083 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11084 let color = color_fetcher(cx);
11085 let start_ix = match ranges.binary_search_by(|probe| {
11086 let cmp = probe
11087 .end
11088 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11089 if cmp.is_gt() {
11090 Ordering::Greater
11091 } else {
11092 Ordering::Less
11093 }
11094 }) {
11095 Ok(i) | Err(i) => i,
11096 };
11097 for range in &ranges[start_ix..] {
11098 if range
11099 .start
11100 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11101 .is_ge()
11102 {
11103 break;
11104 }
11105
11106 let start = range.start.to_display_point(&display_snapshot);
11107 let end = range.end.to_display_point(&display_snapshot);
11108 results.push((start..end, color))
11109 }
11110 }
11111 results
11112 }
11113
11114 /// Get the text ranges corresponding to the redaction query
11115 pub fn redacted_ranges(
11116 &self,
11117 search_range: Range<Anchor>,
11118 display_snapshot: &DisplaySnapshot,
11119 cx: &WindowContext,
11120 ) -> Vec<Range<DisplayPoint>> {
11121 if self.redact_all {
11122 return vec![DisplayPoint::zero()..display_snapshot.max_point()];
11123 }
11124
11125 display_snapshot
11126 .buffer_snapshot
11127 .redacted_ranges(search_range, |file| {
11128 if let Some(file) = file {
11129 file.is_private()
11130 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
11131 } else {
11132 false
11133 }
11134 })
11135 .map(|range| {
11136 range.start.to_display_point(display_snapshot)
11137 ..range.end.to_display_point(display_snapshot)
11138 })
11139 .collect()
11140 }
11141
11142 pub fn highlight_text<T: 'static>(
11143 &mut self,
11144 ranges: Vec<Range<Anchor>>,
11145 style: HighlightStyle,
11146 cx: &mut ViewContext<Self>,
11147 ) {
11148 self.display_map.update(cx, |map, _| {
11149 map.highlight_text(TypeId::of::<T>(), ranges, style)
11150 });
11151 cx.notify();
11152 }
11153
11154 pub(crate) fn highlight_inlays<T: 'static>(
11155 &mut self,
11156 highlights: Vec<InlayHighlight>,
11157 style: HighlightStyle,
11158 cx: &mut ViewContext<Self>,
11159 ) {
11160 self.display_map.update(cx, |map, _| {
11161 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11162 });
11163 cx.notify();
11164 }
11165
11166 pub fn text_highlights<'a, T: 'static>(
11167 &'a self,
11168 cx: &'a AppContext,
11169 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11170 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11171 }
11172
11173 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11174 let cleared = self
11175 .display_map
11176 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11177 if cleared {
11178 cx.notify();
11179 }
11180 }
11181
11182 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11183 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11184 && self.focus_handle.is_focused(cx)
11185 }
11186
11187 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11188 self.show_cursor_when_unfocused = is_enabled;
11189 cx.notify();
11190 }
11191
11192 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11193 cx.notify();
11194 }
11195
11196 fn on_buffer_event(
11197 &mut self,
11198 multibuffer: Model<MultiBuffer>,
11199 event: &multi_buffer::Event,
11200 cx: &mut ViewContext<Self>,
11201 ) {
11202 match event {
11203 multi_buffer::Event::Edited {
11204 singleton_buffer_edited,
11205 } => {
11206 self.scrollbar_marker_state.dirty = true;
11207 self.active_indent_guides_state.dirty = true;
11208 self.refresh_active_diagnostics(cx);
11209 self.refresh_code_actions(cx);
11210 if self.has_active_inline_completion(cx) {
11211 self.update_visible_inline_completion(cx);
11212 }
11213 cx.emit(EditorEvent::BufferEdited);
11214 cx.emit(SearchEvent::MatchesInvalidated);
11215 if *singleton_buffer_edited {
11216 if let Some(project) = &self.project {
11217 let project = project.read(cx);
11218 #[allow(clippy::mutable_key_type)]
11219 let languages_affected = multibuffer
11220 .read(cx)
11221 .all_buffers()
11222 .into_iter()
11223 .filter_map(|buffer| {
11224 let buffer = buffer.read(cx);
11225 let language = buffer.language()?;
11226 if project.is_local()
11227 && project.language_servers_for_buffer(buffer, cx).count() == 0
11228 {
11229 None
11230 } else {
11231 Some(language)
11232 }
11233 })
11234 .cloned()
11235 .collect::<HashSet<_>>();
11236 if !languages_affected.is_empty() {
11237 self.refresh_inlay_hints(
11238 InlayHintRefreshReason::BufferEdited(languages_affected),
11239 cx,
11240 );
11241 }
11242 }
11243 }
11244
11245 let Some(project) = &self.project else { return };
11246 let telemetry = project.read(cx).client().telemetry().clone();
11247 refresh_linked_ranges(self, cx);
11248 telemetry.log_edit_event("editor");
11249 }
11250 multi_buffer::Event::ExcerptsAdded {
11251 buffer,
11252 predecessor,
11253 excerpts,
11254 } => {
11255 self.tasks_update_task = Some(self.refresh_runnables(cx));
11256 cx.emit(EditorEvent::ExcerptsAdded {
11257 buffer: buffer.clone(),
11258 predecessor: *predecessor,
11259 excerpts: excerpts.clone(),
11260 });
11261 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11262 }
11263 multi_buffer::Event::ExcerptsRemoved { ids } => {
11264 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11265 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11266 }
11267 multi_buffer::Event::ExcerptsEdited { ids } => {
11268 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11269 }
11270 multi_buffer::Event::ExcerptsExpanded { ids } => {
11271 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11272 }
11273 multi_buffer::Event::Reparsed(buffer_id) => {
11274 self.tasks_update_task = Some(self.refresh_runnables(cx));
11275
11276 cx.emit(EditorEvent::Reparsed(*buffer_id));
11277 }
11278 multi_buffer::Event::LanguageChanged(buffer_id) => {
11279 linked_editing_ranges::refresh_linked_ranges(self, cx);
11280 cx.emit(EditorEvent::Reparsed(*buffer_id));
11281 cx.notify();
11282 }
11283 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11284 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11285 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11286 cx.emit(EditorEvent::TitleChanged)
11287 }
11288 multi_buffer::Event::DiffBaseChanged => {
11289 self.scrollbar_marker_state.dirty = true;
11290 cx.emit(EditorEvent::DiffBaseChanged);
11291 cx.notify();
11292 }
11293 multi_buffer::Event::DiffUpdated { buffer } => {
11294 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11295 cx.notify();
11296 }
11297 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11298 multi_buffer::Event::DiagnosticsUpdated => {
11299 self.refresh_active_diagnostics(cx);
11300 self.scrollbar_marker_state.dirty = true;
11301 cx.notify();
11302 }
11303 _ => {}
11304 };
11305 }
11306
11307 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11308 cx.notify();
11309 }
11310
11311 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11312 self.tasks_update_task = Some(self.refresh_runnables(cx));
11313 self.refresh_inline_completion(true, cx);
11314 self.refresh_inlay_hints(
11315 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11316 self.selections.newest_anchor().head(),
11317 &self.buffer.read(cx).snapshot(cx),
11318 cx,
11319 )),
11320 cx,
11321 );
11322 let editor_settings = EditorSettings::get_global(cx);
11323 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11324 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11325
11326 let project_settings = ProjectSettings::get_global(cx);
11327 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
11328
11329 if self.mode == EditorMode::Full {
11330 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
11331 if self.git_blame_inline_enabled != inline_blame_enabled {
11332 self.toggle_git_blame_inline_internal(false, cx);
11333 }
11334 }
11335
11336 cx.notify();
11337 }
11338
11339 pub fn set_searchable(&mut self, searchable: bool) {
11340 self.searchable = searchable;
11341 }
11342
11343 pub fn searchable(&self) -> bool {
11344 self.searchable
11345 }
11346
11347 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11348 self.open_excerpts_common(true, cx)
11349 }
11350
11351 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11352 self.open_excerpts_common(false, cx)
11353 }
11354
11355 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11356 let buffer = self.buffer.read(cx);
11357 if buffer.is_singleton() {
11358 cx.propagate();
11359 return;
11360 }
11361
11362 let Some(workspace) = self.workspace() else {
11363 cx.propagate();
11364 return;
11365 };
11366
11367 let mut new_selections_by_buffer = HashMap::default();
11368 for selection in self.selections.all::<usize>(cx) {
11369 for (buffer, mut range, _) in
11370 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11371 {
11372 if selection.reversed {
11373 mem::swap(&mut range.start, &mut range.end);
11374 }
11375 new_selections_by_buffer
11376 .entry(buffer)
11377 .or_insert(Vec::new())
11378 .push(range)
11379 }
11380 }
11381
11382 // We defer the pane interaction because we ourselves are a workspace item
11383 // and activating a new item causes the pane to call a method on us reentrantly,
11384 // which panics if we're on the stack.
11385 cx.window_context().defer(move |cx| {
11386 workspace.update(cx, |workspace, cx| {
11387 let pane = if split {
11388 workspace.adjacent_pane(cx)
11389 } else {
11390 workspace.active_pane().clone()
11391 };
11392
11393 for (buffer, ranges) in new_selections_by_buffer {
11394 let editor =
11395 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
11396 editor.update(cx, |editor, cx| {
11397 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11398 s.select_ranges(ranges);
11399 });
11400 });
11401 }
11402 })
11403 });
11404 }
11405
11406 fn jump(
11407 &mut self,
11408 path: ProjectPath,
11409 position: Point,
11410 anchor: language::Anchor,
11411 offset_from_top: u32,
11412 cx: &mut ViewContext<Self>,
11413 ) {
11414 let workspace = self.workspace();
11415 cx.spawn(|_, mut cx| async move {
11416 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11417 let editor = workspace.update(&mut cx, |workspace, cx| {
11418 // Reset the preview item id before opening the new item
11419 workspace.active_pane().update(cx, |pane, cx| {
11420 pane.set_preview_item_id(None, cx);
11421 });
11422 workspace.open_path_preview(path, None, true, true, cx)
11423 })?;
11424 let editor = editor
11425 .await?
11426 .downcast::<Editor>()
11427 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11428 .downgrade();
11429 editor.update(&mut cx, |editor, cx| {
11430 let buffer = editor
11431 .buffer()
11432 .read(cx)
11433 .as_singleton()
11434 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11435 let buffer = buffer.read(cx);
11436 let cursor = if buffer.can_resolve(&anchor) {
11437 language::ToPoint::to_point(&anchor, buffer)
11438 } else {
11439 buffer.clip_point(position, Bias::Left)
11440 };
11441
11442 let nav_history = editor.nav_history.take();
11443 editor.change_selections(
11444 Some(Autoscroll::top_relative(offset_from_top as usize)),
11445 cx,
11446 |s| {
11447 s.select_ranges([cursor..cursor]);
11448 },
11449 );
11450 editor.nav_history = nav_history;
11451
11452 anyhow::Ok(())
11453 })??;
11454
11455 anyhow::Ok(())
11456 })
11457 .detach_and_log_err(cx);
11458 }
11459
11460 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11461 let snapshot = self.buffer.read(cx).read(cx);
11462 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11463 Some(
11464 ranges
11465 .iter()
11466 .map(move |range| {
11467 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11468 })
11469 .collect(),
11470 )
11471 }
11472
11473 fn selection_replacement_ranges(
11474 &self,
11475 range: Range<OffsetUtf16>,
11476 cx: &AppContext,
11477 ) -> Vec<Range<OffsetUtf16>> {
11478 let selections = self.selections.all::<OffsetUtf16>(cx);
11479 let newest_selection = selections
11480 .iter()
11481 .max_by_key(|selection| selection.id)
11482 .unwrap();
11483 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11484 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11485 let snapshot = self.buffer.read(cx).read(cx);
11486 selections
11487 .into_iter()
11488 .map(|mut selection| {
11489 selection.start.0 =
11490 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11491 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11492 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11493 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11494 })
11495 .collect()
11496 }
11497
11498 fn report_editor_event(
11499 &self,
11500 operation: &'static str,
11501 file_extension: Option<String>,
11502 cx: &AppContext,
11503 ) {
11504 if cfg!(any(test, feature = "test-support")) {
11505 return;
11506 }
11507
11508 let Some(project) = &self.project else { return };
11509
11510 // If None, we are in a file without an extension
11511 let file = self
11512 .buffer
11513 .read(cx)
11514 .as_singleton()
11515 .and_then(|b| b.read(cx).file());
11516 let file_extension = file_extension.or(file
11517 .as_ref()
11518 .and_then(|file| Path::new(file.file_name(cx)).extension())
11519 .and_then(|e| e.to_str())
11520 .map(|a| a.to_string()));
11521
11522 let vim_mode = cx
11523 .global::<SettingsStore>()
11524 .raw_user_settings()
11525 .get("vim_mode")
11526 == Some(&serde_json::Value::Bool(true));
11527
11528 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11529 == language::language_settings::InlineCompletionProvider::Copilot;
11530 let copilot_enabled_for_language = self
11531 .buffer
11532 .read(cx)
11533 .settings_at(0, cx)
11534 .show_inline_completions;
11535
11536 let telemetry = project.read(cx).client().telemetry().clone();
11537 telemetry.report_editor_event(
11538 file_extension,
11539 vim_mode,
11540 operation,
11541 copilot_enabled,
11542 copilot_enabled_for_language,
11543 )
11544 }
11545
11546 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11547 /// with each line being an array of {text, highlight} objects.
11548 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11549 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11550 return;
11551 };
11552
11553 #[derive(Serialize)]
11554 struct Chunk<'a> {
11555 text: String,
11556 highlight: Option<&'a str>,
11557 }
11558
11559 let snapshot = buffer.read(cx).snapshot();
11560 let range = self
11561 .selected_text_range(cx)
11562 .and_then(|selected_range| {
11563 if selected_range.is_empty() {
11564 None
11565 } else {
11566 Some(selected_range)
11567 }
11568 })
11569 .unwrap_or_else(|| 0..snapshot.len());
11570
11571 let chunks = snapshot.chunks(range, true);
11572 let mut lines = Vec::new();
11573 let mut line: VecDeque<Chunk> = VecDeque::new();
11574
11575 let Some(style) = self.style.as_ref() else {
11576 return;
11577 };
11578
11579 for chunk in chunks {
11580 let highlight = chunk
11581 .syntax_highlight_id
11582 .and_then(|id| id.name(&style.syntax));
11583 let mut chunk_lines = chunk.text.split('\n').peekable();
11584 while let Some(text) = chunk_lines.next() {
11585 let mut merged_with_last_token = false;
11586 if let Some(last_token) = line.back_mut() {
11587 if last_token.highlight == highlight {
11588 last_token.text.push_str(text);
11589 merged_with_last_token = true;
11590 }
11591 }
11592
11593 if !merged_with_last_token {
11594 line.push_back(Chunk {
11595 text: text.into(),
11596 highlight,
11597 });
11598 }
11599
11600 if chunk_lines.peek().is_some() {
11601 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11602 line.pop_front();
11603 }
11604 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11605 line.pop_back();
11606 }
11607
11608 lines.push(mem::take(&mut line));
11609 }
11610 }
11611 }
11612
11613 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11614 return;
11615 };
11616 cx.write_to_clipboard(ClipboardItem::new(lines));
11617 }
11618
11619 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11620 &self.inlay_hint_cache
11621 }
11622
11623 pub fn replay_insert_event(
11624 &mut self,
11625 text: &str,
11626 relative_utf16_range: Option<Range<isize>>,
11627 cx: &mut ViewContext<Self>,
11628 ) {
11629 if !self.input_enabled {
11630 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11631 return;
11632 }
11633 if let Some(relative_utf16_range) = relative_utf16_range {
11634 let selections = self.selections.all::<OffsetUtf16>(cx);
11635 self.change_selections(None, cx, |s| {
11636 let new_ranges = selections.into_iter().map(|range| {
11637 let start = OffsetUtf16(
11638 range
11639 .head()
11640 .0
11641 .saturating_add_signed(relative_utf16_range.start),
11642 );
11643 let end = OffsetUtf16(
11644 range
11645 .head()
11646 .0
11647 .saturating_add_signed(relative_utf16_range.end),
11648 );
11649 start..end
11650 });
11651 s.select_ranges(new_ranges);
11652 });
11653 }
11654
11655 self.handle_input(text, cx);
11656 }
11657
11658 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11659 let Some(project) = self.project.as_ref() else {
11660 return false;
11661 };
11662 let project = project.read(cx);
11663
11664 let mut supports = false;
11665 self.buffer().read(cx).for_each_buffer(|buffer| {
11666 if !supports {
11667 supports = project
11668 .language_servers_for_buffer(buffer.read(cx), cx)
11669 .any(
11670 |(_, server)| match server.capabilities().inlay_hint_provider {
11671 Some(lsp::OneOf::Left(enabled)) => enabled,
11672 Some(lsp::OneOf::Right(_)) => true,
11673 None => false,
11674 },
11675 )
11676 }
11677 });
11678 supports
11679 }
11680
11681 pub fn focus(&self, cx: &mut WindowContext) {
11682 cx.focus(&self.focus_handle)
11683 }
11684
11685 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11686 self.focus_handle.is_focused(cx)
11687 }
11688
11689 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11690 cx.emit(EditorEvent::Focused);
11691
11692 if let Some(descendant) = self
11693 .last_focused_descendant
11694 .take()
11695 .and_then(|descendant| descendant.upgrade())
11696 {
11697 cx.focus(&descendant);
11698 } else {
11699 if let Some(blame) = self.blame.as_ref() {
11700 blame.update(cx, GitBlame::focus)
11701 }
11702
11703 self.blink_manager.update(cx, BlinkManager::enable);
11704 self.show_cursor_names(cx);
11705 self.buffer.update(cx, |buffer, cx| {
11706 buffer.finalize_last_transaction(cx);
11707 if self.leader_peer_id.is_none() {
11708 buffer.set_active_selections(
11709 &self.selections.disjoint_anchors(),
11710 self.selections.line_mode,
11711 self.cursor_shape,
11712 cx,
11713 );
11714 }
11715 });
11716 }
11717 }
11718
11719 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
11720 cx.emit(EditorEvent::FocusedIn)
11721 }
11722
11723 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
11724 if event.blurred != self.focus_handle {
11725 self.last_focused_descendant = Some(event.blurred);
11726 }
11727 }
11728
11729 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11730 self.blink_manager.update(cx, BlinkManager::disable);
11731 self.buffer
11732 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11733
11734 if let Some(blame) = self.blame.as_ref() {
11735 blame.update(cx, GitBlame::blur)
11736 }
11737 if !self.hover_state.focused(cx) {
11738 hide_hover(self, cx);
11739 }
11740
11741 self.hide_context_menu(cx);
11742 cx.emit(EditorEvent::Blurred);
11743 cx.notify();
11744 }
11745
11746 pub fn register_action<A: Action>(
11747 &mut self,
11748 listener: impl Fn(&A, &mut WindowContext) + 'static,
11749 ) -> Subscription {
11750 let id = self.next_editor_action_id.post_inc();
11751 let listener = Arc::new(listener);
11752 self.editor_actions.borrow_mut().insert(
11753 id,
11754 Box::new(move |cx| {
11755 let _view = cx.view().clone();
11756 let cx = cx.window_context();
11757 let listener = listener.clone();
11758 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11759 let action = action.downcast_ref().unwrap();
11760 if phase == DispatchPhase::Bubble {
11761 listener(action, cx)
11762 }
11763 })
11764 }),
11765 );
11766
11767 let editor_actions = self.editor_actions.clone();
11768 Subscription::new(move || {
11769 editor_actions.borrow_mut().remove(&id);
11770 })
11771 }
11772
11773 pub fn file_header_size(&self) -> u8 {
11774 self.file_header_size
11775 }
11776
11777 pub fn revert(
11778 &mut self,
11779 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
11780 cx: &mut ViewContext<Self>,
11781 ) {
11782 self.buffer().update(cx, |multi_buffer, cx| {
11783 for (buffer_id, changes) in revert_changes {
11784 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
11785 buffer.update(cx, |buffer, cx| {
11786 buffer.edit(
11787 changes.into_iter().map(|(range, text)| {
11788 (range, text.to_string().map(Arc::<str>::from))
11789 }),
11790 None,
11791 cx,
11792 );
11793 });
11794 }
11795 }
11796 });
11797 self.change_selections(None, cx, |selections| selections.refresh());
11798 }
11799
11800 pub fn to_pixel_point(
11801 &mut self,
11802 source: multi_buffer::Anchor,
11803 editor_snapshot: &EditorSnapshot,
11804 cx: &mut ViewContext<Self>,
11805 ) -> Option<gpui::Point<Pixels>> {
11806 let text_layout_details = self.text_layout_details(cx);
11807 let line_height = text_layout_details
11808 .editor_style
11809 .text
11810 .line_height_in_pixels(cx.rem_size());
11811 let source_point = source.to_display_point(editor_snapshot);
11812 let first_visible_line = text_layout_details
11813 .scroll_anchor
11814 .anchor
11815 .to_display_point(editor_snapshot);
11816 if first_visible_line > source_point {
11817 return None;
11818 }
11819 let source_x = editor_snapshot.x_for_display_point(source_point, &text_layout_details);
11820 let source_y = line_height
11821 * ((source_point.row() - first_visible_line.row()).0 as f32
11822 - text_layout_details.scroll_anchor.offset.y);
11823 Some(gpui::Point::new(source_x, source_y))
11824 }
11825
11826 pub fn display_to_pixel_point(
11827 &mut self,
11828 source: DisplayPoint,
11829 editor_snapshot: &EditorSnapshot,
11830 cx: &mut ViewContext<Self>,
11831 ) -> Option<gpui::Point<Pixels>> {
11832 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
11833 let text_layout_details = self.text_layout_details(cx);
11834 let first_visible_line = text_layout_details
11835 .scroll_anchor
11836 .anchor
11837 .to_display_point(editor_snapshot);
11838 if first_visible_line > source {
11839 return None;
11840 }
11841 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
11842 let source_y = line_height * (source.row() - first_visible_line.row()).0 as f32;
11843 Some(gpui::Point::new(source_x, source_y))
11844 }
11845
11846 fn gutter_bounds(&self) -> Option<Bounds<Pixels>> {
11847 let bounds = self.last_bounds?;
11848 Some(element::gutter_bounds(bounds, self.gutter_dimensions))
11849 }
11850}
11851
11852fn hunks_for_selections(
11853 multi_buffer_snapshot: &MultiBufferSnapshot,
11854 selections: &[Selection<Anchor>],
11855) -> Vec<DiffHunk<MultiBufferRow>> {
11856 let buffer_rows_for_selections = selections.iter().map(|selection| {
11857 let head = selection.head();
11858 let tail = selection.tail();
11859 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11860 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11861 if start > end {
11862 end..start
11863 } else {
11864 start..end
11865 }
11866 });
11867
11868 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
11869}
11870
11871pub fn hunks_for_rows(
11872 rows: impl Iterator<Item = Range<MultiBufferRow>>,
11873 multi_buffer_snapshot: &MultiBufferSnapshot,
11874) -> Vec<DiffHunk<MultiBufferRow>> {
11875 let mut hunks = Vec::new();
11876 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11877 HashMap::default();
11878 for selected_multi_buffer_rows in rows {
11879 let query_rows =
11880 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11881 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11882 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11883 // when the caret is just above or just below the deleted hunk.
11884 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11885 let related_to_selection = if allow_adjacent {
11886 hunk.associated_range.overlaps(&query_rows)
11887 || hunk.associated_range.start == query_rows.end
11888 || hunk.associated_range.end == query_rows.start
11889 } else {
11890 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11891 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11892 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11893 || selected_multi_buffer_rows.end == hunk.associated_range.start
11894 };
11895 if related_to_selection {
11896 if !processed_buffer_rows
11897 .entry(hunk.buffer_id)
11898 .or_default()
11899 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11900 {
11901 continue;
11902 }
11903 hunks.push(hunk);
11904 }
11905 }
11906 }
11907
11908 hunks
11909}
11910
11911pub trait CollaborationHub {
11912 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11913 fn user_participant_indices<'a>(
11914 &self,
11915 cx: &'a AppContext,
11916 ) -> &'a HashMap<u64, ParticipantIndex>;
11917 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11918}
11919
11920impl CollaborationHub for Model<Project> {
11921 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11922 self.read(cx).collaborators()
11923 }
11924
11925 fn user_participant_indices<'a>(
11926 &self,
11927 cx: &'a AppContext,
11928 ) -> &'a HashMap<u64, ParticipantIndex> {
11929 self.read(cx).user_store().read(cx).participant_indices()
11930 }
11931
11932 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11933 let this = self.read(cx);
11934 let user_ids = this.collaborators().values().map(|c| c.user_id);
11935 this.user_store().read_with(cx, |user_store, cx| {
11936 user_store.participant_names(user_ids, cx)
11937 })
11938 }
11939}
11940
11941pub trait CompletionProvider {
11942 fn completions(
11943 &self,
11944 buffer: &Model<Buffer>,
11945 buffer_position: text::Anchor,
11946 trigger: CompletionContext,
11947 cx: &mut ViewContext<Editor>,
11948 ) -> Task<Result<Vec<Completion>>>;
11949
11950 fn resolve_completions(
11951 &self,
11952 buffer: Model<Buffer>,
11953 completion_indices: Vec<usize>,
11954 completions: Arc<RwLock<Box<[Completion]>>>,
11955 cx: &mut ViewContext<Editor>,
11956 ) -> Task<Result<bool>>;
11957
11958 fn apply_additional_edits_for_completion(
11959 &self,
11960 buffer: Model<Buffer>,
11961 completion: Completion,
11962 push_to_history: bool,
11963 cx: &mut ViewContext<Editor>,
11964 ) -> Task<Result<Option<language::Transaction>>>;
11965
11966 fn is_completion_trigger(
11967 &self,
11968 buffer: &Model<Buffer>,
11969 position: language::Anchor,
11970 text: &str,
11971 trigger_in_words: bool,
11972 cx: &mut ViewContext<Editor>,
11973 ) -> bool;
11974}
11975
11976fn snippet_completions(
11977 project: &Project,
11978 buffer: &Model<Buffer>,
11979 buffer_position: text::Anchor,
11980 cx: &mut AppContext,
11981) -> Vec<Completion> {
11982 let language = buffer.read(cx).language_at(buffer_position);
11983 let language_name = language.as_ref().map(|language| language.lsp_id());
11984 let snippet_store = project.snippets().read(cx);
11985 let snippets = snippet_store.snippets_for(language_name, cx);
11986
11987 if snippets.is_empty() {
11988 return vec![];
11989 }
11990 let snapshot = buffer.read(cx).text_snapshot();
11991 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
11992
11993 let mut lines = chunks.lines();
11994 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
11995 return vec![];
11996 };
11997
11998 let scope = language.map(|language| language.default_scope());
11999 let mut last_word = line_at
12000 .chars()
12001 .rev()
12002 .take_while(|c| char_kind(&scope, *c) == CharKind::Word)
12003 .collect::<String>();
12004 last_word = last_word.chars().rev().collect();
12005 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
12006 let to_lsp = |point: &text::Anchor| {
12007 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
12008 point_to_lsp(end)
12009 };
12010 let lsp_end = to_lsp(&buffer_position);
12011 snippets
12012 .into_iter()
12013 .filter_map(|snippet| {
12014 let matching_prefix = snippet
12015 .prefix
12016 .iter()
12017 .find(|prefix| prefix.starts_with(&last_word))?;
12018 let start = as_offset - last_word.len();
12019 let start = snapshot.anchor_before(start);
12020 let range = start..buffer_position;
12021 let lsp_start = to_lsp(&start);
12022 let lsp_range = lsp::Range {
12023 start: lsp_start,
12024 end: lsp_end,
12025 };
12026 Some(Completion {
12027 old_range: range,
12028 new_text: snippet.body.clone(),
12029 label: CodeLabel {
12030 text: matching_prefix.clone(),
12031 runs: vec![],
12032 filter_range: 0..matching_prefix.len(),
12033 },
12034 server_id: LanguageServerId(usize::MAX),
12035 documentation: snippet
12036 .description
12037 .clone()
12038 .map(|description| Documentation::SingleLine(description)),
12039 lsp_completion: lsp::CompletionItem {
12040 label: snippet.prefix.first().unwrap().clone(),
12041 kind: Some(CompletionItemKind::SNIPPET),
12042 label_details: snippet.description.as_ref().map(|description| {
12043 lsp::CompletionItemLabelDetails {
12044 detail: Some(description.clone()),
12045 description: None,
12046 }
12047 }),
12048 insert_text_format: Some(InsertTextFormat::SNIPPET),
12049 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
12050 lsp::InsertReplaceEdit {
12051 new_text: snippet.body.clone(),
12052 insert: lsp_range,
12053 replace: lsp_range,
12054 },
12055 )),
12056 filter_text: Some(snippet.body.clone()),
12057 sort_text: Some(char::MAX.to_string()),
12058 ..Default::default()
12059 },
12060 confirm: None,
12061 show_new_completions_on_confirm: false,
12062 })
12063 })
12064 .collect()
12065}
12066
12067impl CompletionProvider for Model<Project> {
12068 fn completions(
12069 &self,
12070 buffer: &Model<Buffer>,
12071 buffer_position: text::Anchor,
12072 options: CompletionContext,
12073 cx: &mut ViewContext<Editor>,
12074 ) -> Task<Result<Vec<Completion>>> {
12075 self.update(cx, |project, cx| {
12076 let snippets = snippet_completions(project, buffer, buffer_position, cx);
12077 let project_completions = project.completions(&buffer, buffer_position, options, cx);
12078 cx.background_executor().spawn(async move {
12079 let mut completions = project_completions.await?;
12080 //let snippets = snippets.into_iter().;
12081 completions.extend(snippets);
12082 Ok(completions)
12083 })
12084 })
12085 }
12086
12087 fn resolve_completions(
12088 &self,
12089 buffer: Model<Buffer>,
12090 completion_indices: Vec<usize>,
12091 completions: Arc<RwLock<Box<[Completion]>>>,
12092 cx: &mut ViewContext<Editor>,
12093 ) -> Task<Result<bool>> {
12094 self.update(cx, |project, cx| {
12095 project.resolve_completions(buffer, completion_indices, completions, cx)
12096 })
12097 }
12098
12099 fn apply_additional_edits_for_completion(
12100 &self,
12101 buffer: Model<Buffer>,
12102 completion: Completion,
12103 push_to_history: bool,
12104 cx: &mut ViewContext<Editor>,
12105 ) -> Task<Result<Option<language::Transaction>>> {
12106 self.update(cx, |project, cx| {
12107 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
12108 })
12109 }
12110
12111 fn is_completion_trigger(
12112 &self,
12113 buffer: &Model<Buffer>,
12114 position: language::Anchor,
12115 text: &str,
12116 trigger_in_words: bool,
12117 cx: &mut ViewContext<Editor>,
12118 ) -> bool {
12119 if !EditorSettings::get_global(cx).show_completions_on_input {
12120 return false;
12121 }
12122
12123 let mut chars = text.chars();
12124 let char = if let Some(char) = chars.next() {
12125 char
12126 } else {
12127 return false;
12128 };
12129 if chars.next().is_some() {
12130 return false;
12131 }
12132
12133 let buffer = buffer.read(cx);
12134 let scope = buffer.snapshot().language_scope_at(position);
12135 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
12136 return true;
12137 }
12138
12139 buffer
12140 .completion_triggers()
12141 .iter()
12142 .any(|string| string == text)
12143 }
12144}
12145
12146fn inlay_hint_settings(
12147 location: Anchor,
12148 snapshot: &MultiBufferSnapshot,
12149 cx: &mut ViewContext<'_, Editor>,
12150) -> InlayHintSettings {
12151 let file = snapshot.file_at(location);
12152 let language = snapshot.language_at(location);
12153 let settings = all_language_settings(file, cx);
12154 settings
12155 .language(language.map(|l| l.name()).as_deref())
12156 .inlay_hints
12157}
12158
12159fn consume_contiguous_rows(
12160 contiguous_row_selections: &mut Vec<Selection<Point>>,
12161 selection: &Selection<Point>,
12162 display_map: &DisplaySnapshot,
12163 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
12164) -> (MultiBufferRow, MultiBufferRow) {
12165 contiguous_row_selections.push(selection.clone());
12166 let start_row = MultiBufferRow(selection.start.row);
12167 let mut end_row = ending_row(selection, display_map);
12168
12169 while let Some(next_selection) = selections.peek() {
12170 if next_selection.start.row <= end_row.0 {
12171 end_row = ending_row(next_selection, display_map);
12172 contiguous_row_selections.push(selections.next().unwrap().clone());
12173 } else {
12174 break;
12175 }
12176 }
12177 (start_row, end_row)
12178}
12179
12180fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
12181 if next_selection.end.column > 0 || next_selection.is_empty() {
12182 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
12183 } else {
12184 MultiBufferRow(next_selection.end.row)
12185 }
12186}
12187
12188impl EditorSnapshot {
12189 pub fn remote_selections_in_range<'a>(
12190 &'a self,
12191 range: &'a Range<Anchor>,
12192 collaboration_hub: &dyn CollaborationHub,
12193 cx: &'a AppContext,
12194 ) -> impl 'a + Iterator<Item = RemoteSelection> {
12195 let participant_names = collaboration_hub.user_names(cx);
12196 let participant_indices = collaboration_hub.user_participant_indices(cx);
12197 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
12198 let collaborators_by_replica_id = collaborators_by_peer_id
12199 .iter()
12200 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
12201 .collect::<HashMap<_, _>>();
12202 self.buffer_snapshot
12203 .selections_in_range(range, false)
12204 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
12205 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
12206 let participant_index = participant_indices.get(&collaborator.user_id).copied();
12207 let user_name = participant_names.get(&collaborator.user_id).cloned();
12208 Some(RemoteSelection {
12209 replica_id,
12210 selection,
12211 cursor_shape,
12212 line_mode,
12213 participant_index,
12214 peer_id: collaborator.peer_id,
12215 user_name,
12216 })
12217 })
12218 }
12219
12220 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
12221 self.display_snapshot.buffer_snapshot.language_at(position)
12222 }
12223
12224 pub fn is_focused(&self) -> bool {
12225 self.is_focused
12226 }
12227
12228 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
12229 self.placeholder_text.as_ref()
12230 }
12231
12232 pub fn scroll_position(&self) -> gpui::Point<f32> {
12233 self.scroll_anchor.scroll_position(&self.display_snapshot)
12234 }
12235
12236 fn gutter_dimensions(
12237 &self,
12238 font_id: FontId,
12239 font_size: Pixels,
12240 em_width: Pixels,
12241 max_line_number_width: Pixels,
12242 cx: &AppContext,
12243 ) -> GutterDimensions {
12244 if !self.show_gutter {
12245 return GutterDimensions::default();
12246 }
12247 let descent = cx.text_system().descent(font_id, font_size);
12248
12249 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
12250 matches!(
12251 ProjectSettings::get_global(cx).git.git_gutter,
12252 Some(GitGutterSetting::TrackedFiles)
12253 )
12254 });
12255 let gutter_settings = EditorSettings::get_global(cx).gutter;
12256 let show_line_numbers = self
12257 .show_line_numbers
12258 .unwrap_or(gutter_settings.line_numbers);
12259 let line_gutter_width = if show_line_numbers {
12260 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
12261 let min_width_for_number_on_gutter = em_width * 4.0;
12262 max_line_number_width.max(min_width_for_number_on_gutter)
12263 } else {
12264 0.0.into()
12265 };
12266
12267 let show_code_actions = self
12268 .show_code_actions
12269 .unwrap_or(gutter_settings.code_actions);
12270
12271 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
12272
12273 let git_blame_entries_width = self
12274 .render_git_blame_gutter
12275 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
12276
12277 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
12278 left_padding += if show_code_actions || show_runnables {
12279 em_width * 3.0
12280 } else if show_git_gutter && show_line_numbers {
12281 em_width * 2.0
12282 } else if show_git_gutter || show_line_numbers {
12283 em_width
12284 } else {
12285 px(0.)
12286 };
12287
12288 let right_padding = if gutter_settings.folds && show_line_numbers {
12289 em_width * 4.0
12290 } else if gutter_settings.folds {
12291 em_width * 3.0
12292 } else if show_line_numbers {
12293 em_width
12294 } else {
12295 px(0.)
12296 };
12297
12298 GutterDimensions {
12299 left_padding,
12300 right_padding,
12301 width: line_gutter_width + left_padding + right_padding,
12302 margin: -descent,
12303 git_blame_entries_width,
12304 }
12305 }
12306
12307 pub fn render_fold_toggle(
12308 &self,
12309 buffer_row: MultiBufferRow,
12310 row_contains_cursor: bool,
12311 editor: View<Editor>,
12312 cx: &mut WindowContext,
12313 ) -> Option<AnyElement> {
12314 let folded = self.is_line_folded(buffer_row);
12315
12316 if let Some(crease) = self
12317 .crease_snapshot
12318 .query_row(buffer_row, &self.buffer_snapshot)
12319 {
12320 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12321 if folded {
12322 editor.update(cx, |editor, cx| {
12323 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12324 });
12325 } else {
12326 editor.update(cx, |editor, cx| {
12327 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12328 });
12329 }
12330 });
12331
12332 Some((crease.render_toggle)(
12333 buffer_row,
12334 folded,
12335 toggle_callback,
12336 cx,
12337 ))
12338 } else if folded
12339 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12340 {
12341 Some(
12342 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12343 .selected(folded)
12344 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12345 if folded {
12346 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12347 } else {
12348 this.fold_at(&FoldAt { buffer_row }, cx);
12349 }
12350 }))
12351 .into_any_element(),
12352 )
12353 } else {
12354 None
12355 }
12356 }
12357
12358 pub fn render_crease_trailer(
12359 &self,
12360 buffer_row: MultiBufferRow,
12361 cx: &mut WindowContext,
12362 ) -> Option<AnyElement> {
12363 let folded = self.is_line_folded(buffer_row);
12364 let crease = self
12365 .crease_snapshot
12366 .query_row(buffer_row, &self.buffer_snapshot)?;
12367 Some((crease.render_trailer)(buffer_row, folded, cx))
12368 }
12369}
12370
12371impl Deref for EditorSnapshot {
12372 type Target = DisplaySnapshot;
12373
12374 fn deref(&self) -> &Self::Target {
12375 &self.display_snapshot
12376 }
12377}
12378
12379#[derive(Clone, Debug, PartialEq, Eq)]
12380pub enum EditorEvent {
12381 InputIgnored {
12382 text: Arc<str>,
12383 },
12384 InputHandled {
12385 utf16_range_to_replace: Option<Range<isize>>,
12386 text: Arc<str>,
12387 },
12388 ExcerptsAdded {
12389 buffer: Model<Buffer>,
12390 predecessor: ExcerptId,
12391 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12392 },
12393 ExcerptsRemoved {
12394 ids: Vec<ExcerptId>,
12395 },
12396 ExcerptsEdited {
12397 ids: Vec<ExcerptId>,
12398 },
12399 ExcerptsExpanded {
12400 ids: Vec<ExcerptId>,
12401 },
12402 BufferEdited,
12403 Edited {
12404 transaction_id: clock::Lamport,
12405 },
12406 Reparsed(BufferId),
12407 Focused,
12408 FocusedIn,
12409 Blurred,
12410 DirtyChanged,
12411 Saved,
12412 TitleChanged,
12413 DiffBaseChanged,
12414 SelectionsChanged {
12415 local: bool,
12416 },
12417 ScrollPositionChanged {
12418 local: bool,
12419 autoscroll: bool,
12420 },
12421 Closed,
12422 TransactionUndone {
12423 transaction_id: clock::Lamport,
12424 },
12425 TransactionBegun {
12426 transaction_id: clock::Lamport,
12427 },
12428}
12429
12430impl EventEmitter<EditorEvent> for Editor {}
12431
12432impl FocusableView for Editor {
12433 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12434 self.focus_handle.clone()
12435 }
12436}
12437
12438impl Render for Editor {
12439 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12440 let settings = ThemeSettings::get_global(cx);
12441
12442 let text_style = match self.mode {
12443 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12444 color: cx.theme().colors().editor_foreground,
12445 font_family: settings.ui_font.family.clone(),
12446 font_features: settings.ui_font.features.clone(),
12447 font_size: rems(0.875).into(),
12448 font_weight: settings.ui_font.weight,
12449 line_height: relative(settings.buffer_line_height.value()),
12450 ..Default::default()
12451 },
12452 EditorMode::Full => TextStyle {
12453 color: cx.theme().colors().editor_foreground,
12454 font_family: settings.buffer_font.family.clone(),
12455 font_features: settings.buffer_font.features.clone(),
12456 font_size: settings.buffer_font_size(cx).into(),
12457 font_weight: settings.buffer_font.weight,
12458 line_height: relative(settings.buffer_line_height.value()),
12459 ..Default::default()
12460 },
12461 };
12462
12463 let background = match self.mode {
12464 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12465 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12466 EditorMode::Full => cx.theme().colors().editor_background,
12467 };
12468
12469 EditorElement::new(
12470 cx.view(),
12471 EditorStyle {
12472 background,
12473 local_player: cx.theme().players().local(),
12474 text: text_style,
12475 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12476 syntax: cx.theme().syntax().clone(),
12477 status: cx.theme().status().clone(),
12478 inlay_hints_style: HighlightStyle {
12479 color: Some(cx.theme().status().hint),
12480 ..HighlightStyle::default()
12481 },
12482 suggestions_style: HighlightStyle {
12483 color: Some(cx.theme().status().predictive),
12484 ..HighlightStyle::default()
12485 },
12486 },
12487 )
12488 }
12489}
12490
12491impl ViewInputHandler for Editor {
12492 fn text_for_range(
12493 &mut self,
12494 range_utf16: Range<usize>,
12495 cx: &mut ViewContext<Self>,
12496 ) -> Option<String> {
12497 Some(
12498 self.buffer
12499 .read(cx)
12500 .read(cx)
12501 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12502 .collect(),
12503 )
12504 }
12505
12506 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12507 // Prevent the IME menu from appearing when holding down an alphabetic key
12508 // while input is disabled.
12509 if !self.input_enabled {
12510 return None;
12511 }
12512
12513 let range = self.selections.newest::<OffsetUtf16>(cx).range();
12514 Some(range.start.0..range.end.0)
12515 }
12516
12517 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12518 let snapshot = self.buffer.read(cx).read(cx);
12519 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
12520 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12521 }
12522
12523 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12524 self.clear_highlights::<InputComposition>(cx);
12525 self.ime_transaction.take();
12526 }
12527
12528 fn replace_text_in_range(
12529 &mut self,
12530 range_utf16: Option<Range<usize>>,
12531 text: &str,
12532 cx: &mut ViewContext<Self>,
12533 ) {
12534 if !self.input_enabled {
12535 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12536 return;
12537 }
12538
12539 self.transact(cx, |this, cx| {
12540 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12541 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12542 Some(this.selection_replacement_ranges(range_utf16, cx))
12543 } else {
12544 this.marked_text_ranges(cx)
12545 };
12546
12547 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12548 let newest_selection_id = this.selections.newest_anchor().id;
12549 this.selections
12550 .all::<OffsetUtf16>(cx)
12551 .iter()
12552 .zip(ranges_to_replace.iter())
12553 .find_map(|(selection, range)| {
12554 if selection.id == newest_selection_id {
12555 Some(
12556 (range.start.0 as isize - selection.head().0 as isize)
12557 ..(range.end.0 as isize - selection.head().0 as isize),
12558 )
12559 } else {
12560 None
12561 }
12562 })
12563 });
12564
12565 cx.emit(EditorEvent::InputHandled {
12566 utf16_range_to_replace: range_to_replace,
12567 text: text.into(),
12568 });
12569
12570 if let Some(new_selected_ranges) = new_selected_ranges {
12571 this.change_selections(None, cx, |selections| {
12572 selections.select_ranges(new_selected_ranges)
12573 });
12574 this.backspace(&Default::default(), cx);
12575 }
12576
12577 this.handle_input(text, cx);
12578 });
12579
12580 if let Some(transaction) = self.ime_transaction {
12581 self.buffer.update(cx, |buffer, cx| {
12582 buffer.group_until_transaction(transaction, cx);
12583 });
12584 }
12585
12586 self.unmark_text(cx);
12587 }
12588
12589 fn replace_and_mark_text_in_range(
12590 &mut self,
12591 range_utf16: Option<Range<usize>>,
12592 text: &str,
12593 new_selected_range_utf16: Option<Range<usize>>,
12594 cx: &mut ViewContext<Self>,
12595 ) {
12596 if !self.input_enabled {
12597 return;
12598 }
12599
12600 let transaction = self.transact(cx, |this, cx| {
12601 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12602 let snapshot = this.buffer.read(cx).read(cx);
12603 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12604 for marked_range in &mut marked_ranges {
12605 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12606 marked_range.start.0 += relative_range_utf16.start;
12607 marked_range.start =
12608 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12609 marked_range.end =
12610 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12611 }
12612 }
12613 Some(marked_ranges)
12614 } else if let Some(range_utf16) = range_utf16 {
12615 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12616 Some(this.selection_replacement_ranges(range_utf16, cx))
12617 } else {
12618 None
12619 };
12620
12621 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12622 let newest_selection_id = this.selections.newest_anchor().id;
12623 this.selections
12624 .all::<OffsetUtf16>(cx)
12625 .iter()
12626 .zip(ranges_to_replace.iter())
12627 .find_map(|(selection, range)| {
12628 if selection.id == newest_selection_id {
12629 Some(
12630 (range.start.0 as isize - selection.head().0 as isize)
12631 ..(range.end.0 as isize - selection.head().0 as isize),
12632 )
12633 } else {
12634 None
12635 }
12636 })
12637 });
12638
12639 cx.emit(EditorEvent::InputHandled {
12640 utf16_range_to_replace: range_to_replace,
12641 text: text.into(),
12642 });
12643
12644 if let Some(ranges) = ranges_to_replace {
12645 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12646 }
12647
12648 let marked_ranges = {
12649 let snapshot = this.buffer.read(cx).read(cx);
12650 this.selections
12651 .disjoint_anchors()
12652 .iter()
12653 .map(|selection| {
12654 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12655 })
12656 .collect::<Vec<_>>()
12657 };
12658
12659 if text.is_empty() {
12660 this.unmark_text(cx);
12661 } else {
12662 this.highlight_text::<InputComposition>(
12663 marked_ranges.clone(),
12664 HighlightStyle {
12665 underline: Some(UnderlineStyle {
12666 thickness: px(1.),
12667 color: None,
12668 wavy: false,
12669 }),
12670 ..Default::default()
12671 },
12672 cx,
12673 );
12674 }
12675
12676 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12677 let use_autoclose = this.use_autoclose;
12678 let use_auto_surround = this.use_auto_surround;
12679 this.set_use_autoclose(false);
12680 this.set_use_auto_surround(false);
12681 this.handle_input(text, cx);
12682 this.set_use_autoclose(use_autoclose);
12683 this.set_use_auto_surround(use_auto_surround);
12684
12685 if let Some(new_selected_range) = new_selected_range_utf16 {
12686 let snapshot = this.buffer.read(cx).read(cx);
12687 let new_selected_ranges = marked_ranges
12688 .into_iter()
12689 .map(|marked_range| {
12690 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12691 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12692 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12693 snapshot.clip_offset_utf16(new_start, Bias::Left)
12694 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12695 })
12696 .collect::<Vec<_>>();
12697
12698 drop(snapshot);
12699 this.change_selections(None, cx, |selections| {
12700 selections.select_ranges(new_selected_ranges)
12701 });
12702 }
12703 });
12704
12705 self.ime_transaction = self.ime_transaction.or(transaction);
12706 if let Some(transaction) = self.ime_transaction {
12707 self.buffer.update(cx, |buffer, cx| {
12708 buffer.group_until_transaction(transaction, cx);
12709 });
12710 }
12711
12712 if self.text_highlights::<InputComposition>(cx).is_none() {
12713 self.ime_transaction.take();
12714 }
12715 }
12716
12717 fn bounds_for_range(
12718 &mut self,
12719 range_utf16: Range<usize>,
12720 element_bounds: gpui::Bounds<Pixels>,
12721 cx: &mut ViewContext<Self>,
12722 ) -> Option<gpui::Bounds<Pixels>> {
12723 let text_layout_details = self.text_layout_details(cx);
12724 let style = &text_layout_details.editor_style;
12725 let font_id = cx.text_system().resolve_font(&style.text.font());
12726 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12727 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12728
12729 let em_width = cx
12730 .text_system()
12731 .typographic_bounds(font_id, font_size, 'm')
12732 .unwrap()
12733 .size
12734 .width;
12735
12736 let snapshot = self.snapshot(cx);
12737 let scroll_position = snapshot.scroll_position();
12738 let scroll_left = scroll_position.x * em_width;
12739
12740 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12741 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12742 + self.gutter_dimensions.width;
12743 let y = line_height * (start.row().as_f32() - scroll_position.y);
12744
12745 Some(Bounds {
12746 origin: element_bounds.origin + point(x, y),
12747 size: size(em_width, line_height),
12748 })
12749 }
12750}
12751
12752trait SelectionExt {
12753 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12754 fn spanned_rows(
12755 &self,
12756 include_end_if_at_line_start: bool,
12757 map: &DisplaySnapshot,
12758 ) -> Range<MultiBufferRow>;
12759}
12760
12761impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12762 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12763 let start = self
12764 .start
12765 .to_point(&map.buffer_snapshot)
12766 .to_display_point(map);
12767 let end = self
12768 .end
12769 .to_point(&map.buffer_snapshot)
12770 .to_display_point(map);
12771 if self.reversed {
12772 end..start
12773 } else {
12774 start..end
12775 }
12776 }
12777
12778 fn spanned_rows(
12779 &self,
12780 include_end_if_at_line_start: bool,
12781 map: &DisplaySnapshot,
12782 ) -> Range<MultiBufferRow> {
12783 let start = self.start.to_point(&map.buffer_snapshot);
12784 let mut end = self.end.to_point(&map.buffer_snapshot);
12785 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
12786 end.row -= 1;
12787 }
12788
12789 let buffer_start = map.prev_line_boundary(start).0;
12790 let buffer_end = map.next_line_boundary(end).0;
12791 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
12792 }
12793}
12794
12795impl<T: InvalidationRegion> InvalidationStack<T> {
12796 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
12797 where
12798 S: Clone + ToOffset,
12799 {
12800 while let Some(region) = self.last() {
12801 let all_selections_inside_invalidation_ranges =
12802 if selections.len() == region.ranges().len() {
12803 selections
12804 .iter()
12805 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
12806 .all(|(selection, invalidation_range)| {
12807 let head = selection.head().to_offset(buffer);
12808 invalidation_range.start <= head && invalidation_range.end >= head
12809 })
12810 } else {
12811 false
12812 };
12813
12814 if all_selections_inside_invalidation_ranges {
12815 break;
12816 } else {
12817 self.pop();
12818 }
12819 }
12820 }
12821}
12822
12823impl<T> Default for InvalidationStack<T> {
12824 fn default() -> Self {
12825 Self(Default::default())
12826 }
12827}
12828
12829impl<T> Deref for InvalidationStack<T> {
12830 type Target = Vec<T>;
12831
12832 fn deref(&self) -> &Self::Target {
12833 &self.0
12834 }
12835}
12836
12837impl<T> DerefMut for InvalidationStack<T> {
12838 fn deref_mut(&mut self) -> &mut Self::Target {
12839 &mut self.0
12840 }
12841}
12842
12843impl InvalidationRegion for SnippetState {
12844 fn ranges(&self) -> &[Range<Anchor>] {
12845 &self.ranges[self.active_index]
12846 }
12847}
12848
12849pub fn diagnostic_block_renderer(
12850 diagnostic: Diagnostic,
12851 max_message_rows: Option<u8>,
12852 allow_closing: bool,
12853 _is_valid: bool,
12854) -> RenderBlock {
12855 let (text_without_backticks, code_ranges) =
12856 highlight_diagnostic_message(&diagnostic, max_message_rows);
12857
12858 Box::new(move |cx: &mut BlockContext| {
12859 let group_id: SharedString = cx.block_id.to_string().into();
12860
12861 let mut text_style = cx.text_style().clone();
12862 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
12863 let theme_settings = ThemeSettings::get_global(cx);
12864 text_style.font_family = theme_settings.buffer_font.family.clone();
12865 text_style.font_style = theme_settings.buffer_font.style;
12866 text_style.font_features = theme_settings.buffer_font.features.clone();
12867 text_style.font_weight = theme_settings.buffer_font.weight;
12868
12869 let multi_line_diagnostic = diagnostic.message.contains('\n');
12870
12871 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
12872 if multi_line_diagnostic {
12873 v_flex()
12874 } else {
12875 h_flex()
12876 }
12877 .when(allow_closing, |div| {
12878 div.children(diagnostic.is_primary.then(|| {
12879 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
12880 .icon_color(Color::Muted)
12881 .size(ButtonSize::Compact)
12882 .style(ButtonStyle::Transparent)
12883 .visible_on_hover(group_id.clone())
12884 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
12885 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
12886 }))
12887 })
12888 .child(
12889 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
12890 .icon_color(Color::Muted)
12891 .size(ButtonSize::Compact)
12892 .style(ButtonStyle::Transparent)
12893 .visible_on_hover(group_id.clone())
12894 .on_click({
12895 let message = diagnostic.message.clone();
12896 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12897 })
12898 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12899 )
12900 };
12901
12902 let icon_size = buttons(&diagnostic, cx.block_id)
12903 .into_any_element()
12904 .layout_as_root(AvailableSpace::min_size(), cx);
12905
12906 h_flex()
12907 .id(cx.block_id)
12908 .group(group_id.clone())
12909 .relative()
12910 .size_full()
12911 .pl(cx.gutter_dimensions.width)
12912 .w(cx.max_width + cx.gutter_dimensions.width)
12913 .child(
12914 div()
12915 .flex()
12916 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12917 .flex_shrink(),
12918 )
12919 .child(buttons(&diagnostic, cx.block_id))
12920 .child(div().flex().flex_shrink_0().child(
12921 StyledText::new(text_without_backticks.clone()).with_highlights(
12922 &text_style,
12923 code_ranges.iter().map(|range| {
12924 (
12925 range.clone(),
12926 HighlightStyle {
12927 font_weight: Some(FontWeight::BOLD),
12928 ..Default::default()
12929 },
12930 )
12931 }),
12932 ),
12933 ))
12934 .into_any_element()
12935 })
12936}
12937
12938pub fn highlight_diagnostic_message(
12939 diagnostic: &Diagnostic,
12940 mut max_message_rows: Option<u8>,
12941) -> (SharedString, Vec<Range<usize>>) {
12942 let mut text_without_backticks = String::new();
12943 let mut code_ranges = Vec::new();
12944
12945 if let Some(source) = &diagnostic.source {
12946 text_without_backticks.push_str(&source);
12947 code_ranges.push(0..source.len());
12948 text_without_backticks.push_str(": ");
12949 }
12950
12951 let mut prev_offset = 0;
12952 let mut in_code_block = false;
12953 let has_row_limit = max_message_rows.is_some();
12954 let mut newline_indices = diagnostic
12955 .message
12956 .match_indices('\n')
12957 .filter(|_| has_row_limit)
12958 .map(|(ix, _)| ix)
12959 .fuse()
12960 .peekable();
12961
12962 for (quote_ix, _) in diagnostic
12963 .message
12964 .match_indices('`')
12965 .chain([(diagnostic.message.len(), "")])
12966 {
12967 let mut first_newline_ix = None;
12968 let mut last_newline_ix = None;
12969 while let Some(newline_ix) = newline_indices.peek() {
12970 if *newline_ix < quote_ix {
12971 if first_newline_ix.is_none() {
12972 first_newline_ix = Some(*newline_ix);
12973 }
12974 last_newline_ix = Some(*newline_ix);
12975
12976 if let Some(rows_left) = &mut max_message_rows {
12977 if *rows_left == 0 {
12978 break;
12979 } else {
12980 *rows_left -= 1;
12981 }
12982 }
12983 let _ = newline_indices.next();
12984 } else {
12985 break;
12986 }
12987 }
12988 let prev_len = text_without_backticks.len();
12989 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
12990 text_without_backticks.push_str(new_text);
12991 if in_code_block {
12992 code_ranges.push(prev_len..text_without_backticks.len());
12993 }
12994 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
12995 in_code_block = !in_code_block;
12996 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
12997 text_without_backticks.push_str("...");
12998 break;
12999 }
13000 }
13001
13002 (text_without_backticks.into(), code_ranges)
13003}
13004
13005fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
13006 match severity {
13007 DiagnosticSeverity::ERROR => colors.error,
13008 DiagnosticSeverity::WARNING => colors.warning,
13009 DiagnosticSeverity::INFORMATION => colors.info,
13010 DiagnosticSeverity::HINT => colors.info,
13011 _ => colors.ignored,
13012 }
13013}
13014
13015pub fn styled_runs_for_code_label<'a>(
13016 label: &'a CodeLabel,
13017 syntax_theme: &'a theme::SyntaxTheme,
13018) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
13019 let fade_out = HighlightStyle {
13020 fade_out: Some(0.35),
13021 ..Default::default()
13022 };
13023
13024 let mut prev_end = label.filter_range.end;
13025 label
13026 .runs
13027 .iter()
13028 .enumerate()
13029 .flat_map(move |(ix, (range, highlight_id))| {
13030 let style = if let Some(style) = highlight_id.style(syntax_theme) {
13031 style
13032 } else {
13033 return Default::default();
13034 };
13035 let mut muted_style = style;
13036 muted_style.highlight(fade_out);
13037
13038 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
13039 if range.start >= label.filter_range.end {
13040 if range.start > prev_end {
13041 runs.push((prev_end..range.start, fade_out));
13042 }
13043 runs.push((range.clone(), muted_style));
13044 } else if range.end <= label.filter_range.end {
13045 runs.push((range.clone(), style));
13046 } else {
13047 runs.push((range.start..label.filter_range.end, style));
13048 runs.push((label.filter_range.end..range.end, muted_style));
13049 }
13050 prev_end = cmp::max(prev_end, range.end);
13051
13052 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
13053 runs.push((prev_end..label.text.len(), fade_out));
13054 }
13055
13056 runs
13057 })
13058}
13059
13060pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
13061 let mut prev_index = 0;
13062 let mut prev_codepoint: Option<char> = None;
13063 text.char_indices()
13064 .chain([(text.len(), '\0')])
13065 .filter_map(move |(index, codepoint)| {
13066 let prev_codepoint = prev_codepoint.replace(codepoint)?;
13067 let is_boundary = index == text.len()
13068 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
13069 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
13070 if is_boundary {
13071 let chunk = &text[prev_index..index];
13072 prev_index = index;
13073 Some(chunk)
13074 } else {
13075 None
13076 }
13077 })
13078}
13079
13080pub trait RangeToAnchorExt: Sized {
13081 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
13082
13083 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
13084 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
13085 anchor_range.start.to_display_point(&snapshot)..anchor_range.end.to_display_point(&snapshot)
13086 }
13087}
13088
13089impl<T: ToOffset> RangeToAnchorExt for Range<T> {
13090 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
13091 let start_offset = self.start.to_offset(snapshot);
13092 let end_offset = self.end.to_offset(snapshot);
13093 if start_offset == end_offset {
13094 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
13095 } else {
13096 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
13097 }
13098 }
13099}
13100
13101pub trait RowExt {
13102 fn as_f32(&self) -> f32;
13103
13104 fn next_row(&self) -> Self;
13105
13106 fn previous_row(&self) -> Self;
13107
13108 fn minus(&self, other: Self) -> u32;
13109}
13110
13111impl RowExt for DisplayRow {
13112 fn as_f32(&self) -> f32 {
13113 self.0 as f32
13114 }
13115
13116 fn next_row(&self) -> Self {
13117 Self(self.0 + 1)
13118 }
13119
13120 fn previous_row(&self) -> Self {
13121 Self(self.0.saturating_sub(1))
13122 }
13123
13124 fn minus(&self, other: Self) -> u32 {
13125 self.0 - other.0
13126 }
13127}
13128
13129impl RowExt for MultiBufferRow {
13130 fn as_f32(&self) -> f32 {
13131 self.0 as f32
13132 }
13133
13134 fn next_row(&self) -> Self {
13135 Self(self.0 + 1)
13136 }
13137
13138 fn previous_row(&self) -> Self {
13139 Self(self.0.saturating_sub(1))
13140 }
13141
13142 fn minus(&self, other: Self) -> u32 {
13143 self.0 - other.0
13144 }
13145}
13146
13147trait RowRangeExt {
13148 type Row;
13149
13150 fn len(&self) -> usize;
13151
13152 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
13153}
13154
13155impl RowRangeExt for Range<MultiBufferRow> {
13156 type Row = MultiBufferRow;
13157
13158 fn len(&self) -> usize {
13159 (self.end.0 - self.start.0) as usize
13160 }
13161
13162 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
13163 (self.start.0..self.end.0).map(MultiBufferRow)
13164 }
13165}
13166
13167impl RowRangeExt for Range<DisplayRow> {
13168 type Row = DisplayRow;
13169
13170 fn len(&self) -> usize {
13171 (self.end.0 - self.start.0) as usize
13172 }
13173
13174 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
13175 (self.start.0..self.end.0).map(DisplayRow)
13176 }
13177}
13178
13179fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
13180 if hunk.diff_base_byte_range.is_empty() {
13181 DiffHunkStatus::Added
13182 } else if hunk.associated_range.is_empty() {
13183 DiffHunkStatus::Removed
13184 } else {
13185 DiffHunkStatus::Modified
13186 }
13187}