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 clangd_ext;
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;
30pub mod items;
31mod linked_editing_ranges;
32mod lsp_ext;
33mod mouse_context_menu;
34pub mod movement;
35mod persistence;
36mod proposed_changes_editor;
37mod rust_analyzer_ext;
38pub mod scroll;
39mod selections_collection;
40pub mod tasks;
41
42#[cfg(test)]
43mod editor_tests;
44#[cfg(test)]
45mod inline_completion_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51pub(crate) use actions::*;
52pub use actions::{OpenExcerpts, OpenExcerptsSplit};
53use aho_corasick::AhoCorasick;
54use anyhow::{anyhow, Context as _, Result};
55use blink_manager::BlinkManager;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
79 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
80 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
81 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion::Direction;
90use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101pub use proposed_changes_editor::{
102 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
103};
104use similar::{ChangeTag, TextDiff};
105use std::iter::Peekable;
106use task::{ResolvedTask, TaskTemplate, TaskVariables};
107
108use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
109pub use lsp::CompletionContext;
110use lsp::{
111 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
112 LanguageServerId, LanguageServerName,
113};
114use mouse_context_menu::MouseContextMenu;
115use movement::TextLayoutDetails;
116pub use multi_buffer::{
117 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
118 ToPoint,
119};
120use multi_buffer::{
121 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
122};
123use ordered_float::OrderedFloat;
124use parking_lot::RwLock;
125use project::{
126 lsp_store::{FormatTarget, FormatTrigger},
127 project_settings::{GitGutterSetting, ProjectSettings},
128 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
129 Project, ProjectItem, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{
135 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
136};
137use serde::{Deserialize, Serialize};
138use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
139use smallvec::SmallVec;
140use snippet::Snippet;
141use std::{
142 any::TypeId,
143 borrow::Cow,
144 cell::{Cell, RefCell},
145 cmp::{self, Ordering, Reverse},
146 mem,
147 num::NonZeroU32,
148 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
149 path::{Path, PathBuf},
150 rc::Rc,
151 sync::Arc,
152 time::{Duration, Instant},
153};
154pub use sum_tree::Bias;
155use sum_tree::TreeMap;
156use text::{BufferId, OffsetUtf16, Rope};
157use theme::{
158 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
159 ThemeColors, ThemeSettings,
160};
161use ui::{
162 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
163 ListItem, Popover, PopoverMenuHandle, Tooltip,
164};
165use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
166use workspace::item::{ItemHandle, PreviewTabsSettings};
167use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
168use workspace::{
169 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
170};
171use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
172
173use crate::hover_links::find_url;
174use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
175
176pub const FILE_HEADER_HEIGHT: u32 = 2;
177pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
178pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
179pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
180const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
181const MAX_LINE_LEN: usize = 1024;
182const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
183const MAX_SELECTION_HISTORY_LEN: usize = 1024;
184pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
185#[doc(hidden)]
186pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
187#[doc(hidden)]
188pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
189
190pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
191pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
192
193pub fn render_parsed_markdown(
194 element_id: impl Into<ElementId>,
195 parsed: &language::ParsedMarkdown,
196 editor_style: &EditorStyle,
197 workspace: Option<WeakView<Workspace>>,
198 cx: &mut WindowContext,
199) -> InteractiveText {
200 let code_span_background_color = cx
201 .theme()
202 .colors()
203 .editor_document_highlight_read_background;
204
205 let highlights = gpui::combine_highlights(
206 parsed.highlights.iter().filter_map(|(range, highlight)| {
207 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
208 Some((range.clone(), highlight))
209 }),
210 parsed
211 .regions
212 .iter()
213 .zip(&parsed.region_ranges)
214 .filter_map(|(region, range)| {
215 if region.code {
216 Some((
217 range.clone(),
218 HighlightStyle {
219 background_color: Some(code_span_background_color),
220 ..Default::default()
221 },
222 ))
223 } else {
224 None
225 }
226 }),
227 );
228
229 let mut links = Vec::new();
230 let mut link_ranges = Vec::new();
231 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
232 if let Some(link) = region.link.clone() {
233 links.push(link);
234 link_ranges.push(range.clone());
235 }
236 }
237
238 InteractiveText::new(
239 element_id,
240 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
241 )
242 .on_click(link_ranges, move |clicked_range_ix, cx| {
243 match &links[clicked_range_ix] {
244 markdown::Link::Web { url } => cx.open_url(url),
245 markdown::Link::Path { path } => {
246 if let Some(workspace) = &workspace {
247 _ = workspace.update(cx, |workspace, cx| {
248 workspace.open_abs_path(path.clone(), false, cx).detach();
249 });
250 }
251 }
252 }
253 })
254}
255
256#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
257pub(crate) enum InlayId {
258 Suggestion(usize),
259 Hint(usize),
260}
261
262impl InlayId {
263 fn id(&self) -> usize {
264 match self {
265 Self::Suggestion(id) => *id,
266 Self::Hint(id) => *id,
267 }
268 }
269}
270
271enum DiffRowHighlight {}
272enum DocumentHighlightRead {}
273enum DocumentHighlightWrite {}
274enum InputComposition {}
275
276#[derive(Debug, Copy, Clone, PartialEq, Eq)]
277pub enum Navigated {
278 Yes,
279 No,
280}
281
282impl Navigated {
283 pub fn from_bool(yes: bool) -> Navigated {
284 if yes {
285 Navigated::Yes
286 } else {
287 Navigated::No
288 }
289 }
290}
291
292pub fn init_settings(cx: &mut AppContext) {
293 EditorSettings::register(cx);
294}
295
296pub fn init(cx: &mut AppContext) {
297 init_settings(cx);
298
299 workspace::register_project_item::<Editor>(cx);
300 workspace::FollowableViewRegistry::register::<Editor>(cx);
301 workspace::register_serializable_item::<Editor>(cx);
302
303 cx.observe_new_views(
304 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
305 workspace.register_action(Editor::new_file);
306 workspace.register_action(Editor::new_file_vertical);
307 workspace.register_action(Editor::new_file_horizontal);
308 },
309 )
310 .detach();
311
312 cx.on_action(move |_: &workspace::NewFile, cx| {
313 let app_state = workspace::AppState::global(cx);
314 if let Some(app_state) = app_state.upgrade() {
315 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
316 Editor::new_file(workspace, &Default::default(), cx)
317 })
318 .detach();
319 }
320 });
321 cx.on_action(move |_: &workspace::NewWindow, cx| {
322 let app_state = workspace::AppState::global(cx);
323 if let Some(app_state) = app_state.upgrade() {
324 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
325 Editor::new_file(workspace, &Default::default(), cx)
326 })
327 .detach();
328 }
329 });
330 git::project_diff::init(cx);
331}
332
333pub struct SearchWithinRange;
334
335trait InvalidationRegion {
336 fn ranges(&self) -> &[Range<Anchor>];
337}
338
339#[derive(Clone, Debug, PartialEq)]
340pub enum SelectPhase {
341 Begin {
342 position: DisplayPoint,
343 add: bool,
344 click_count: usize,
345 },
346 BeginColumnar {
347 position: DisplayPoint,
348 reset: bool,
349 goal_column: u32,
350 },
351 Extend {
352 position: DisplayPoint,
353 click_count: usize,
354 },
355 Update {
356 position: DisplayPoint,
357 goal_column: u32,
358 scroll_delta: gpui::Point<f32>,
359 },
360 End,
361}
362
363#[derive(Clone, Debug)]
364pub enum SelectMode {
365 Character,
366 Word(Range<Anchor>),
367 Line(Range<Anchor>),
368 All,
369}
370
371#[derive(Copy, Clone, PartialEq, Eq, Debug)]
372pub enum EditorMode {
373 SingleLine { auto_width: bool },
374 AutoHeight { max_lines: usize },
375 Full,
376}
377
378#[derive(Copy, Clone, Debug)]
379pub enum SoftWrap {
380 /// Prefer not to wrap at all.
381 ///
382 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
383 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
384 GitDiff,
385 /// Prefer a single line generally, unless an overly long line is encountered.
386 None,
387 /// Soft wrap lines that exceed the editor width.
388 EditorWidth,
389 /// Soft wrap lines at the preferred line length.
390 Column(u32),
391 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
392 Bounded(u32),
393}
394
395#[derive(Clone)]
396pub struct EditorStyle {
397 pub background: Hsla,
398 pub local_player: PlayerColor,
399 pub text: TextStyle,
400 pub scrollbar_width: Pixels,
401 pub syntax: Arc<SyntaxTheme>,
402 pub status: StatusColors,
403 pub inlay_hints_style: HighlightStyle,
404 pub suggestions_style: HighlightStyle,
405 pub unnecessary_code_fade: f32,
406}
407
408impl Default for EditorStyle {
409 fn default() -> Self {
410 Self {
411 background: Hsla::default(),
412 local_player: PlayerColor::default(),
413 text: TextStyle::default(),
414 scrollbar_width: Pixels::default(),
415 syntax: Default::default(),
416 // HACK: Status colors don't have a real default.
417 // We should look into removing the status colors from the editor
418 // style and retrieve them directly from the theme.
419 status: StatusColors::dark(),
420 inlay_hints_style: HighlightStyle::default(),
421 suggestions_style: HighlightStyle::default(),
422 unnecessary_code_fade: Default::default(),
423 }
424 }
425}
426
427pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
428 let show_background = language_settings::language_settings(None, None, cx)
429 .inlay_hints
430 .show_background;
431
432 HighlightStyle {
433 color: Some(cx.theme().status().hint),
434 background_color: show_background.then(|| cx.theme().status().hint_background),
435 ..HighlightStyle::default()
436 }
437}
438
439type CompletionId = usize;
440
441enum InlineCompletion {
442 Edit(Vec<(Range<Anchor>, String)>),
443 Move(Anchor),
444}
445
446struct InlineCompletionState {
447 inlay_ids: Vec<InlayId>,
448 completion: InlineCompletion,
449 invalidation_range: Range<Anchor>,
450}
451
452enum InlineCompletionHighlight {}
453
454#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
455struct EditorActionId(usize);
456
457impl EditorActionId {
458 pub fn post_inc(&mut self) -> Self {
459 let answer = self.0;
460
461 *self = Self(answer + 1);
462
463 Self(answer)
464 }
465}
466
467// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
468// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
469
470type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
471type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
472
473#[derive(Default)]
474struct ScrollbarMarkerState {
475 scrollbar_size: Size<Pixels>,
476 dirty: bool,
477 markers: Arc<[PaintQuad]>,
478 pending_refresh: Option<Task<Result<()>>>,
479}
480
481impl ScrollbarMarkerState {
482 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
483 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
484 }
485}
486
487#[derive(Clone, Debug)]
488struct RunnableTasks {
489 templates: Vec<(TaskSourceKind, TaskTemplate)>,
490 offset: MultiBufferOffset,
491 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
492 column: u32,
493 // Values of all named captures, including those starting with '_'
494 extra_variables: HashMap<String, String>,
495 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
496 context_range: Range<BufferOffset>,
497}
498
499impl RunnableTasks {
500 fn resolve<'a>(
501 &'a self,
502 cx: &'a task::TaskContext,
503 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
504 self.templates.iter().filter_map(|(kind, template)| {
505 template
506 .resolve_task(&kind.to_id_base(), cx)
507 .map(|task| (kind.clone(), task))
508 })
509 }
510}
511
512#[derive(Clone)]
513struct ResolvedTasks {
514 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
515 position: Anchor,
516}
517#[derive(Copy, Clone, Debug)]
518struct MultiBufferOffset(usize);
519#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
520struct BufferOffset(usize);
521
522// Addons allow storing per-editor state in other crates (e.g. Vim)
523pub trait Addon: 'static {
524 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
525
526 fn to_any(&self) -> &dyn std::any::Any;
527}
528
529#[derive(Debug, Copy, Clone, PartialEq, Eq)]
530pub enum IsVimMode {
531 Yes,
532 No,
533}
534
535/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
536///
537/// See the [module level documentation](self) for more information.
538pub struct Editor {
539 focus_handle: FocusHandle,
540 last_focused_descendant: Option<WeakFocusHandle>,
541 /// The text buffer being edited
542 buffer: Model<MultiBuffer>,
543 /// Map of how text in the buffer should be displayed.
544 /// Handles soft wraps, folds, fake inlay text insertions, etc.
545 pub display_map: Model<DisplayMap>,
546 pub selections: SelectionsCollection,
547 pub scroll_manager: ScrollManager,
548 /// When inline assist editors are linked, they all render cursors because
549 /// typing enters text into each of them, even the ones that aren't focused.
550 pub(crate) show_cursor_when_unfocused: bool,
551 columnar_selection_tail: Option<Anchor>,
552 add_selections_state: Option<AddSelectionsState>,
553 select_next_state: Option<SelectNextState>,
554 select_prev_state: Option<SelectNextState>,
555 selection_history: SelectionHistory,
556 autoclose_regions: Vec<AutocloseRegion>,
557 snippet_stack: InvalidationStack<SnippetState>,
558 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
559 ime_transaction: Option<TransactionId>,
560 active_diagnostics: Option<ActiveDiagnosticGroup>,
561 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
562
563 project: Option<Model<Project>>,
564 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
565 completion_provider: Option<Box<dyn CompletionProvider>>,
566 collaboration_hub: Option<Box<dyn CollaborationHub>>,
567 blink_manager: Model<BlinkManager>,
568 show_cursor_names: bool,
569 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
570 pub show_local_selections: bool,
571 mode: EditorMode,
572 show_breadcrumbs: bool,
573 show_gutter: bool,
574 show_line_numbers: Option<bool>,
575 use_relative_line_numbers: Option<bool>,
576 show_git_diff_gutter: Option<bool>,
577 show_code_actions: Option<bool>,
578 show_runnables: Option<bool>,
579 show_wrap_guides: Option<bool>,
580 show_indent_guides: Option<bool>,
581 placeholder_text: Option<Arc<str>>,
582 highlight_order: usize,
583 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
584 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
585 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
586 scrollbar_marker_state: ScrollbarMarkerState,
587 active_indent_guides_state: ActiveIndentGuidesState,
588 nav_history: Option<ItemNavHistory>,
589 context_menu: RwLock<Option<ContextMenu>>,
590 mouse_context_menu: Option<MouseContextMenu>,
591 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
592 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
593 signature_help_state: SignatureHelpState,
594 auto_signature_help: Option<bool>,
595 find_all_references_task_sources: Vec<Anchor>,
596 next_completion_id: CompletionId,
597 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
598 code_actions_task: Option<Task<Result<()>>>,
599 document_highlights_task: Option<Task<()>>,
600 linked_editing_range_task: Option<Task<Option<()>>>,
601 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
602 pending_rename: Option<RenameState>,
603 searchable: bool,
604 cursor_shape: CursorShape,
605 current_line_highlight: Option<CurrentLineHighlight>,
606 collapse_matches: bool,
607 autoindent_mode: Option<AutoindentMode>,
608 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
609 input_enabled: bool,
610 use_modal_editing: bool,
611 read_only: bool,
612 leader_peer_id: Option<PeerId>,
613 remote_id: Option<ViewId>,
614 hover_state: HoverState,
615 gutter_hovered: bool,
616 hovered_link_state: Option<HoveredLinkState>,
617 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
618 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
619 active_inline_completion: Option<InlineCompletionState>,
620 // enable_inline_completions is a switch that Vim can use to disable
621 // inline completions based on its mode.
622 enable_inline_completions: bool,
623 show_inline_completions_override: Option<bool>,
624 inlay_hint_cache: InlayHintCache,
625 diff_map: DiffMap,
626 next_inlay_id: usize,
627 _subscriptions: Vec<Subscription>,
628 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
629 gutter_dimensions: GutterDimensions,
630 style: Option<EditorStyle>,
631 text_style_refinement: Option<TextStyleRefinement>,
632 next_editor_action_id: EditorActionId,
633 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
634 use_autoclose: bool,
635 use_auto_surround: bool,
636 auto_replace_emoji_shortcode: bool,
637 show_git_blame_gutter: bool,
638 show_git_blame_inline: bool,
639 show_git_blame_inline_delay_task: Option<Task<()>>,
640 git_blame_inline_enabled: bool,
641 serialize_dirty_buffers: bool,
642 show_selection_menu: Option<bool>,
643 blame: Option<Model<GitBlame>>,
644 blame_subscription: Option<Subscription>,
645 custom_context_menu: Option<
646 Box<
647 dyn 'static
648 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
649 >,
650 >,
651 last_bounds: Option<Bounds<Pixels>>,
652 expect_bounds_change: Option<Bounds<Pixels>>,
653 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
654 tasks_update_task: Option<Task<()>>,
655 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
656 breadcrumb_header: Option<String>,
657 focused_block: Option<FocusedBlock>,
658 next_scroll_position: NextScrollCursorCenterTopBottom,
659 addons: HashMap<TypeId, Box<dyn Addon>>,
660 _scroll_cursor_center_top_bottom_task: Task<()>,
661}
662
663#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
664enum NextScrollCursorCenterTopBottom {
665 #[default]
666 Center,
667 Top,
668 Bottom,
669}
670
671impl NextScrollCursorCenterTopBottom {
672 fn next(&self) -> Self {
673 match self {
674 Self::Center => Self::Top,
675 Self::Top => Self::Bottom,
676 Self::Bottom => Self::Center,
677 }
678 }
679}
680
681#[derive(Clone)]
682pub struct EditorSnapshot {
683 pub mode: EditorMode,
684 show_gutter: bool,
685 show_line_numbers: Option<bool>,
686 show_git_diff_gutter: Option<bool>,
687 show_code_actions: Option<bool>,
688 show_runnables: Option<bool>,
689 git_blame_gutter_max_author_length: Option<usize>,
690 pub display_snapshot: DisplaySnapshot,
691 pub placeholder_text: Option<Arc<str>>,
692 diff_map: DiffMapSnapshot,
693 is_focused: bool,
694 scroll_anchor: ScrollAnchor,
695 ongoing_scroll: OngoingScroll,
696 current_line_highlight: CurrentLineHighlight,
697 gutter_hovered: bool,
698}
699
700const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
701
702#[derive(Default, Debug, Clone, Copy)]
703pub struct GutterDimensions {
704 pub left_padding: Pixels,
705 pub right_padding: Pixels,
706 pub width: Pixels,
707 pub margin: Pixels,
708 pub git_blame_entries_width: Option<Pixels>,
709}
710
711impl GutterDimensions {
712 /// The full width of the space taken up by the gutter.
713 pub fn full_width(&self) -> Pixels {
714 self.margin + self.width
715 }
716
717 /// The width of the space reserved for the fold indicators,
718 /// use alongside 'justify_end' and `gutter_width` to
719 /// right align content with the line numbers
720 pub fn fold_area_width(&self) -> Pixels {
721 self.margin + self.right_padding
722 }
723}
724
725#[derive(Debug)]
726pub struct RemoteSelection {
727 pub replica_id: ReplicaId,
728 pub selection: Selection<Anchor>,
729 pub cursor_shape: CursorShape,
730 pub peer_id: PeerId,
731 pub line_mode: bool,
732 pub participant_index: Option<ParticipantIndex>,
733 pub user_name: Option<SharedString>,
734}
735
736#[derive(Clone, Debug)]
737struct SelectionHistoryEntry {
738 selections: Arc<[Selection<Anchor>]>,
739 select_next_state: Option<SelectNextState>,
740 select_prev_state: Option<SelectNextState>,
741 add_selections_state: Option<AddSelectionsState>,
742}
743
744enum SelectionHistoryMode {
745 Normal,
746 Undoing,
747 Redoing,
748}
749
750#[derive(Clone, PartialEq, Eq, Hash)]
751struct HoveredCursor {
752 replica_id: u16,
753 selection_id: usize,
754}
755
756impl Default for SelectionHistoryMode {
757 fn default() -> Self {
758 Self::Normal
759 }
760}
761
762#[derive(Default)]
763struct SelectionHistory {
764 #[allow(clippy::type_complexity)]
765 selections_by_transaction:
766 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
767 mode: SelectionHistoryMode,
768 undo_stack: VecDeque<SelectionHistoryEntry>,
769 redo_stack: VecDeque<SelectionHistoryEntry>,
770}
771
772impl SelectionHistory {
773 fn insert_transaction(
774 &mut self,
775 transaction_id: TransactionId,
776 selections: Arc<[Selection<Anchor>]>,
777 ) {
778 self.selections_by_transaction
779 .insert(transaction_id, (selections, None));
780 }
781
782 #[allow(clippy::type_complexity)]
783 fn transaction(
784 &self,
785 transaction_id: TransactionId,
786 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
787 self.selections_by_transaction.get(&transaction_id)
788 }
789
790 #[allow(clippy::type_complexity)]
791 fn transaction_mut(
792 &mut self,
793 transaction_id: TransactionId,
794 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
795 self.selections_by_transaction.get_mut(&transaction_id)
796 }
797
798 fn push(&mut self, entry: SelectionHistoryEntry) {
799 if !entry.selections.is_empty() {
800 match self.mode {
801 SelectionHistoryMode::Normal => {
802 self.push_undo(entry);
803 self.redo_stack.clear();
804 }
805 SelectionHistoryMode::Undoing => self.push_redo(entry),
806 SelectionHistoryMode::Redoing => self.push_undo(entry),
807 }
808 }
809 }
810
811 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
812 if self
813 .undo_stack
814 .back()
815 .map_or(true, |e| e.selections != entry.selections)
816 {
817 self.undo_stack.push_back(entry);
818 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
819 self.undo_stack.pop_front();
820 }
821 }
822 }
823
824 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
825 if self
826 .redo_stack
827 .back()
828 .map_or(true, |e| e.selections != entry.selections)
829 {
830 self.redo_stack.push_back(entry);
831 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
832 self.redo_stack.pop_front();
833 }
834 }
835 }
836}
837
838struct RowHighlight {
839 index: usize,
840 range: Range<Anchor>,
841 color: Hsla,
842 should_autoscroll: bool,
843}
844
845#[derive(Clone, Debug)]
846struct AddSelectionsState {
847 above: bool,
848 stack: Vec<usize>,
849}
850
851#[derive(Clone)]
852struct SelectNextState {
853 query: AhoCorasick,
854 wordwise: bool,
855 done: bool,
856}
857
858impl std::fmt::Debug for SelectNextState {
859 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
860 f.debug_struct(std::any::type_name::<Self>())
861 .field("wordwise", &self.wordwise)
862 .field("done", &self.done)
863 .finish()
864 }
865}
866
867#[derive(Debug)]
868struct AutocloseRegion {
869 selection_id: usize,
870 range: Range<Anchor>,
871 pair: BracketPair,
872}
873
874#[derive(Debug)]
875struct SnippetState {
876 ranges: Vec<Vec<Range<Anchor>>>,
877 active_index: usize,
878 choices: Vec<Option<Vec<String>>>,
879}
880
881#[doc(hidden)]
882pub struct RenameState {
883 pub range: Range<Anchor>,
884 pub old_name: Arc<str>,
885 pub editor: View<Editor>,
886 block_id: CustomBlockId,
887}
888
889struct InvalidationStack<T>(Vec<T>);
890
891struct RegisteredInlineCompletionProvider {
892 provider: Arc<dyn InlineCompletionProviderHandle>,
893 _subscription: Subscription,
894}
895
896enum ContextMenu {
897 Completions(CompletionsMenu),
898 CodeActions(CodeActionsMenu),
899}
900
901impl ContextMenu {
902 fn select_first(
903 &mut self,
904 provider: Option<&dyn CompletionProvider>,
905 cx: &mut ViewContext<Editor>,
906 ) -> bool {
907 if self.visible() {
908 match self {
909 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
910 ContextMenu::CodeActions(menu) => menu.select_first(cx),
911 }
912 true
913 } else {
914 false
915 }
916 }
917
918 fn select_prev(
919 &mut self,
920 provider: Option<&dyn CompletionProvider>,
921 cx: &mut ViewContext<Editor>,
922 ) -> bool {
923 if self.visible() {
924 match self {
925 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
926 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
927 }
928 true
929 } else {
930 false
931 }
932 }
933
934 fn select_next(
935 &mut self,
936 provider: Option<&dyn CompletionProvider>,
937 cx: &mut ViewContext<Editor>,
938 ) -> bool {
939 if self.visible() {
940 match self {
941 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
942 ContextMenu::CodeActions(menu) => menu.select_next(cx),
943 }
944 true
945 } else {
946 false
947 }
948 }
949
950 fn select_last(
951 &mut self,
952 provider: Option<&dyn CompletionProvider>,
953 cx: &mut ViewContext<Editor>,
954 ) -> bool {
955 if self.visible() {
956 match self {
957 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
958 ContextMenu::CodeActions(menu) => menu.select_last(cx),
959 }
960 true
961 } else {
962 false
963 }
964 }
965
966 fn visible(&self) -> bool {
967 match self {
968 ContextMenu::Completions(menu) => menu.visible(),
969 ContextMenu::CodeActions(menu) => menu.visible(),
970 }
971 }
972
973 fn render(
974 &self,
975 cursor_position: DisplayPoint,
976 style: &EditorStyle,
977 max_height: Pixels,
978 workspace: Option<WeakView<Workspace>>,
979 cx: &mut ViewContext<Editor>,
980 ) -> (ContextMenuOrigin, AnyElement) {
981 match self {
982 ContextMenu::Completions(menu) => (
983 ContextMenuOrigin::EditorPoint(cursor_position),
984 menu.render(style, max_height, workspace, cx),
985 ),
986 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
987 }
988 }
989}
990
991enum ContextMenuOrigin {
992 EditorPoint(DisplayPoint),
993 GutterIndicator(DisplayRow),
994}
995
996#[derive(Clone, Debug)]
997struct CompletionsMenu {
998 id: CompletionId,
999 sort_completions: bool,
1000 initial_position: Anchor,
1001 buffer: Model<Buffer>,
1002 completions: Arc<RwLock<Box<[Completion]>>>,
1003 match_candidates: Arc<[StringMatchCandidate]>,
1004 matches: Arc<[StringMatch]>,
1005 selected_item: usize,
1006 scroll_handle: UniformListScrollHandle,
1007 resolve_completions: bool,
1008 aside_was_displayed: Cell<bool>,
1009}
1010
1011impl CompletionsMenu {
1012 fn new(
1013 id: CompletionId,
1014 sort_completions: bool,
1015 initial_position: Anchor,
1016 buffer: Model<Buffer>,
1017 completions: Box<[Completion]>,
1018 aside_was_displayed: bool,
1019 ) -> Self {
1020 let match_candidates = completions
1021 .iter()
1022 .enumerate()
1023 .map(|(id, completion)| {
1024 StringMatchCandidate::new(
1025 id,
1026 completion.label.text[completion.label.filter_range.clone()].into(),
1027 )
1028 })
1029 .collect();
1030
1031 Self {
1032 id,
1033 sort_completions,
1034 initial_position,
1035 buffer,
1036 completions: Arc::new(RwLock::new(completions)),
1037 match_candidates,
1038 matches: Vec::new().into(),
1039 selected_item: 0,
1040 scroll_handle: UniformListScrollHandle::new(),
1041 resolve_completions: true,
1042 aside_was_displayed: Cell::new(aside_was_displayed),
1043 }
1044 }
1045
1046 fn new_snippet_choices(
1047 id: CompletionId,
1048 sort_completions: bool,
1049 choices: &Vec<String>,
1050 selection: Range<Anchor>,
1051 buffer: Model<Buffer>,
1052 ) -> Self {
1053 let completions = choices
1054 .iter()
1055 .map(|choice| Completion {
1056 old_range: selection.start.text_anchor..selection.end.text_anchor,
1057 new_text: choice.to_string(),
1058 label: CodeLabel {
1059 text: choice.to_string(),
1060 runs: Default::default(),
1061 filter_range: Default::default(),
1062 },
1063 server_id: LanguageServerId(usize::MAX),
1064 documentation: None,
1065 lsp_completion: Default::default(),
1066 confirm: None,
1067 })
1068 .collect();
1069
1070 let match_candidates = choices
1071 .iter()
1072 .enumerate()
1073 .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
1074 .collect();
1075 let matches = choices
1076 .iter()
1077 .enumerate()
1078 .map(|(id, completion)| StringMatch {
1079 candidate_id: id,
1080 score: 1.,
1081 positions: vec![],
1082 string: completion.clone(),
1083 })
1084 .collect();
1085 Self {
1086 id,
1087 sort_completions,
1088 initial_position: selection.start,
1089 buffer,
1090 completions: Arc::new(RwLock::new(completions)),
1091 match_candidates,
1092 matches,
1093 selected_item: 0,
1094 scroll_handle: UniformListScrollHandle::new(),
1095 resolve_completions: false,
1096 aside_was_displayed: Cell::new(false),
1097 }
1098 }
1099
1100 fn select_first(
1101 &mut self,
1102 provider: Option<&dyn CompletionProvider>,
1103 cx: &mut ViewContext<Editor>,
1104 ) {
1105 self.selected_item = 0;
1106 self.scroll_handle
1107 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1108 self.resolve_selected_completion(provider, cx);
1109 cx.notify();
1110 }
1111
1112 fn select_prev(
1113 &mut self,
1114 provider: Option<&dyn CompletionProvider>,
1115 cx: &mut ViewContext<Editor>,
1116 ) {
1117 if self.selected_item > 0 {
1118 self.selected_item -= 1;
1119 } else {
1120 self.selected_item = self.matches.len() - 1;
1121 }
1122 self.scroll_handle
1123 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1124 self.resolve_selected_completion(provider, cx);
1125 cx.notify();
1126 }
1127
1128 fn select_next(
1129 &mut self,
1130 provider: Option<&dyn CompletionProvider>,
1131 cx: &mut ViewContext<Editor>,
1132 ) {
1133 if self.selected_item + 1 < self.matches.len() {
1134 self.selected_item += 1;
1135 } else {
1136 self.selected_item = 0;
1137 }
1138 self.scroll_handle
1139 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1140 self.resolve_selected_completion(provider, cx);
1141 cx.notify();
1142 }
1143
1144 fn select_last(
1145 &mut self,
1146 provider: Option<&dyn CompletionProvider>,
1147 cx: &mut ViewContext<Editor>,
1148 ) {
1149 self.selected_item = self.matches.len() - 1;
1150 self.scroll_handle
1151 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1152 self.resolve_selected_completion(provider, cx);
1153 cx.notify();
1154 }
1155
1156 fn resolve_selected_completion(
1157 &mut self,
1158 provider: Option<&dyn CompletionProvider>,
1159 cx: &mut ViewContext<Editor>,
1160 ) {
1161 if !self.resolve_completions {
1162 return;
1163 }
1164 let Some(provider) = provider else {
1165 return;
1166 };
1167
1168 let completion_index = self.matches[self.selected_item].candidate_id;
1169 let resolve_task = provider.resolve_completions(
1170 self.buffer.clone(),
1171 vec![completion_index],
1172 self.completions.clone(),
1173 cx,
1174 );
1175
1176 cx.spawn(move |editor, mut cx| async move {
1177 if let Some(true) = resolve_task.await.log_err() {
1178 editor.update(&mut cx, |_, cx| cx.notify()).ok();
1179 }
1180 })
1181 .detach();
1182 }
1183
1184 fn visible(&self) -> bool {
1185 !self.matches.is_empty()
1186 }
1187
1188 fn render(
1189 &self,
1190 style: &EditorStyle,
1191 max_height: Pixels,
1192 workspace: Option<WeakView<Workspace>>,
1193 cx: &mut ViewContext<Editor>,
1194 ) -> AnyElement {
1195 let settings = EditorSettings::get_global(cx);
1196 let show_completion_documentation = settings.show_completion_documentation;
1197
1198 let widest_completion_ix = self
1199 .matches
1200 .iter()
1201 .enumerate()
1202 .max_by_key(|(_, mat)| {
1203 let completions = self.completions.read();
1204 let completion = &completions[mat.candidate_id];
1205 let documentation = &completion.documentation;
1206
1207 let mut len = completion.label.text.chars().count();
1208 if let Some(Documentation::SingleLine(text)) = documentation {
1209 if show_completion_documentation {
1210 len += text.chars().count();
1211 }
1212 }
1213
1214 len
1215 })
1216 .map(|(ix, _)| ix);
1217
1218 let completions = self.completions.clone();
1219 let matches = self.matches.clone();
1220 let selected_item = self.selected_item;
1221 let style = style.clone();
1222
1223 let multiline_docs = if show_completion_documentation {
1224 let mat = &self.matches[selected_item];
1225 match &self.completions.read()[mat.candidate_id].documentation {
1226 Some(Documentation::MultiLinePlainText(text)) => {
1227 Some(div().child(SharedString::from(text.clone())))
1228 }
1229 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1230 Some(div().child(render_parsed_markdown(
1231 "completions_markdown",
1232 parsed,
1233 &style,
1234 workspace,
1235 cx,
1236 )))
1237 }
1238 Some(Documentation::Undocumented) if self.aside_was_displayed.get() => {
1239 Some(div().child("No documentation"))
1240 }
1241 _ => None,
1242 }
1243 } else {
1244 None
1245 };
1246
1247 let aside_contents = if let Some(multiline_docs) = multiline_docs {
1248 Some(multiline_docs)
1249 } else if self.aside_was_displayed.get() {
1250 Some(div().child("Fetching documentation..."))
1251 } else {
1252 None
1253 };
1254 self.aside_was_displayed.set(aside_contents.is_some());
1255
1256 let aside_contents = aside_contents.map(|div| {
1257 div.id("multiline_docs")
1258 .max_h(max_height)
1259 .flex_1()
1260 .px_1p5()
1261 .py_1()
1262 .min_w(px(260.))
1263 .max_w(px(640.))
1264 .w(px(500.))
1265 .overflow_y_scroll()
1266 .occlude()
1267 });
1268
1269 let list = uniform_list(
1270 cx.view().clone(),
1271 "completions",
1272 matches.len(),
1273 move |_editor, range, cx| {
1274 let start_ix = range.start;
1275 let completions_guard = completions.read();
1276
1277 matches[range]
1278 .iter()
1279 .enumerate()
1280 .map(|(ix, mat)| {
1281 let item_ix = start_ix + ix;
1282 let candidate_id = mat.candidate_id;
1283 let completion = &completions_guard[candidate_id];
1284
1285 let documentation = if show_completion_documentation {
1286 &completion.documentation
1287 } else {
1288 &None
1289 };
1290
1291 let highlights = gpui::combine_highlights(
1292 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1293 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1294 |(range, mut highlight)| {
1295 // Ignore font weight for syntax highlighting, as we'll use it
1296 // for fuzzy matches.
1297 highlight.font_weight = None;
1298
1299 if completion.lsp_completion.deprecated.unwrap_or(false) {
1300 highlight.strikethrough = Some(StrikethroughStyle {
1301 thickness: 1.0.into(),
1302 ..Default::default()
1303 });
1304 highlight.color = Some(cx.theme().colors().text_muted);
1305 }
1306
1307 (range, highlight)
1308 },
1309 ),
1310 );
1311 let completion_label = StyledText::new(completion.label.text.clone())
1312 .with_highlights(&style.text, highlights);
1313 let documentation_label =
1314 if let Some(Documentation::SingleLine(text)) = documentation {
1315 if text.trim().is_empty() {
1316 None
1317 } else {
1318 Some(
1319 Label::new(text.clone())
1320 .ml_4()
1321 .size(LabelSize::Small)
1322 .color(Color::Muted),
1323 )
1324 }
1325 } else {
1326 None
1327 };
1328
1329 let color_swatch = completion
1330 .color()
1331 .map(|color| div().size_4().bg(color).rounded_sm());
1332
1333 div().min_w(px(220.)).max_w(px(540.)).child(
1334 ListItem::new(mat.candidate_id)
1335 .inset(true)
1336 .selected(item_ix == selected_item)
1337 .on_click(cx.listener(move |editor, _event, cx| {
1338 cx.stop_propagation();
1339 if let Some(task) = editor.confirm_completion(
1340 &ConfirmCompletion {
1341 item_ix: Some(item_ix),
1342 },
1343 cx,
1344 ) {
1345 task.detach_and_log_err(cx)
1346 }
1347 }))
1348 .start_slot::<Div>(color_swatch)
1349 .child(h_flex().overflow_hidden().child(completion_label))
1350 .end_slot::<Label>(documentation_label),
1351 )
1352 })
1353 .collect()
1354 },
1355 )
1356 .occlude()
1357 .max_h(max_height)
1358 .track_scroll(self.scroll_handle.clone())
1359 .with_width_from_item(widest_completion_ix)
1360 .with_sizing_behavior(ListSizingBehavior::Infer);
1361
1362 Popover::new()
1363 .child(list)
1364 .when_some(aside_contents, |popover, aside_contents| {
1365 popover.aside(aside_contents)
1366 })
1367 .into_any_element()
1368 }
1369
1370 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1371 let mut matches = if let Some(query) = query {
1372 fuzzy::match_strings(
1373 &self.match_candidates,
1374 query,
1375 query.chars().any(|c| c.is_uppercase()),
1376 100,
1377 &Default::default(),
1378 executor,
1379 )
1380 .await
1381 } else {
1382 self.match_candidates
1383 .iter()
1384 .enumerate()
1385 .map(|(candidate_id, candidate)| StringMatch {
1386 candidate_id,
1387 score: Default::default(),
1388 positions: Default::default(),
1389 string: candidate.string.clone(),
1390 })
1391 .collect()
1392 };
1393
1394 // Remove all candidates where the query's start does not match the start of any word in the candidate
1395 if let Some(query) = query {
1396 if let Some(query_start) = query.chars().next() {
1397 matches.retain(|string_match| {
1398 split_words(&string_match.string).any(|word| {
1399 // Check that the first codepoint of the word as lowercase matches the first
1400 // codepoint of the query as lowercase
1401 word.chars()
1402 .flat_map(|codepoint| codepoint.to_lowercase())
1403 .zip(query_start.to_lowercase())
1404 .all(|(word_cp, query_cp)| word_cp == query_cp)
1405 })
1406 });
1407 }
1408 }
1409
1410 let completions = self.completions.read();
1411 if self.sort_completions {
1412 matches.sort_unstable_by_key(|mat| {
1413 // We do want to strike a balance here between what the language server tells us
1414 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1415 // `Creat` and there is a local variable called `CreateComponent`).
1416 // So what we do is: we bucket all matches into two buckets
1417 // - Strong matches
1418 // - Weak matches
1419 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1420 // and the Weak matches are the rest.
1421 //
1422 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1423 // matches, we prefer language-server sort_text first.
1424 //
1425 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1426 // Rest of the matches(weak) can be sorted as language-server expects.
1427
1428 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1429 enum MatchScore<'a> {
1430 Strong {
1431 score: Reverse<OrderedFloat<f64>>,
1432 sort_text: Option<&'a str>,
1433 sort_key: (usize, &'a str),
1434 },
1435 Weak {
1436 sort_text: Option<&'a str>,
1437 score: Reverse<OrderedFloat<f64>>,
1438 sort_key: (usize, &'a str),
1439 },
1440 }
1441
1442 let completion = &completions[mat.candidate_id];
1443 let sort_key = completion.sort_key();
1444 let sort_text = completion.lsp_completion.sort_text.as_deref();
1445 let score = Reverse(OrderedFloat(mat.score));
1446
1447 if mat.score >= 0.2 {
1448 MatchScore::Strong {
1449 score,
1450 sort_text,
1451 sort_key,
1452 }
1453 } else {
1454 MatchScore::Weak {
1455 sort_text,
1456 score,
1457 sort_key,
1458 }
1459 }
1460 });
1461 }
1462
1463 for mat in &mut matches {
1464 let completion = &completions[mat.candidate_id];
1465 mat.string.clone_from(&completion.label.text);
1466 for position in &mut mat.positions {
1467 *position += completion.label.filter_range.start;
1468 }
1469 }
1470 drop(completions);
1471
1472 self.matches = matches.into();
1473 self.selected_item = 0;
1474 }
1475}
1476
1477#[derive(Clone)]
1478struct AvailableCodeAction {
1479 excerpt_id: ExcerptId,
1480 action: CodeAction,
1481 provider: Arc<dyn CodeActionProvider>,
1482}
1483
1484#[derive(Clone)]
1485struct CodeActionContents {
1486 tasks: Option<Arc<ResolvedTasks>>,
1487 actions: Option<Arc<[AvailableCodeAction]>>,
1488}
1489
1490impl CodeActionContents {
1491 fn len(&self) -> usize {
1492 match (&self.tasks, &self.actions) {
1493 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1494 (Some(tasks), None) => tasks.templates.len(),
1495 (None, Some(actions)) => actions.len(),
1496 (None, None) => 0,
1497 }
1498 }
1499
1500 fn is_empty(&self) -> bool {
1501 match (&self.tasks, &self.actions) {
1502 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1503 (Some(tasks), None) => tasks.templates.is_empty(),
1504 (None, Some(actions)) => actions.is_empty(),
1505 (None, None) => true,
1506 }
1507 }
1508
1509 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1510 self.tasks
1511 .iter()
1512 .flat_map(|tasks| {
1513 tasks
1514 .templates
1515 .iter()
1516 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1517 })
1518 .chain(self.actions.iter().flat_map(|actions| {
1519 actions.iter().map(|available| CodeActionsItem::CodeAction {
1520 excerpt_id: available.excerpt_id,
1521 action: available.action.clone(),
1522 provider: available.provider.clone(),
1523 })
1524 }))
1525 }
1526 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1527 match (&self.tasks, &self.actions) {
1528 (Some(tasks), Some(actions)) => {
1529 if index < tasks.templates.len() {
1530 tasks
1531 .templates
1532 .get(index)
1533 .cloned()
1534 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1535 } else {
1536 actions.get(index - tasks.templates.len()).map(|available| {
1537 CodeActionsItem::CodeAction {
1538 excerpt_id: available.excerpt_id,
1539 action: available.action.clone(),
1540 provider: available.provider.clone(),
1541 }
1542 })
1543 }
1544 }
1545 (Some(tasks), None) => tasks
1546 .templates
1547 .get(index)
1548 .cloned()
1549 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1550 (None, Some(actions)) => {
1551 actions
1552 .get(index)
1553 .map(|available| CodeActionsItem::CodeAction {
1554 excerpt_id: available.excerpt_id,
1555 action: available.action.clone(),
1556 provider: available.provider.clone(),
1557 })
1558 }
1559 (None, None) => None,
1560 }
1561 }
1562}
1563
1564#[allow(clippy::large_enum_variant)]
1565#[derive(Clone)]
1566enum CodeActionsItem {
1567 Task(TaskSourceKind, ResolvedTask),
1568 CodeAction {
1569 excerpt_id: ExcerptId,
1570 action: CodeAction,
1571 provider: Arc<dyn CodeActionProvider>,
1572 },
1573}
1574
1575impl CodeActionsItem {
1576 fn as_task(&self) -> Option<&ResolvedTask> {
1577 let Self::Task(_, task) = self else {
1578 return None;
1579 };
1580 Some(task)
1581 }
1582 fn as_code_action(&self) -> Option<&CodeAction> {
1583 let Self::CodeAction { action, .. } = self else {
1584 return None;
1585 };
1586 Some(action)
1587 }
1588 fn label(&self) -> String {
1589 match self {
1590 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1591 Self::Task(_, task) => task.resolved_label.clone(),
1592 }
1593 }
1594}
1595
1596struct CodeActionsMenu {
1597 actions: CodeActionContents,
1598 buffer: Model<Buffer>,
1599 selected_item: usize,
1600 scroll_handle: UniformListScrollHandle,
1601 deployed_from_indicator: Option<DisplayRow>,
1602}
1603
1604impl CodeActionsMenu {
1605 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1606 self.selected_item = 0;
1607 self.scroll_handle
1608 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1609 cx.notify()
1610 }
1611
1612 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1613 if self.selected_item > 0 {
1614 self.selected_item -= 1;
1615 } else {
1616 self.selected_item = self.actions.len() - 1;
1617 }
1618 self.scroll_handle
1619 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1620 cx.notify();
1621 }
1622
1623 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1624 if self.selected_item + 1 < self.actions.len() {
1625 self.selected_item += 1;
1626 } else {
1627 self.selected_item = 0;
1628 }
1629 self.scroll_handle
1630 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1631 cx.notify();
1632 }
1633
1634 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1635 self.selected_item = self.actions.len() - 1;
1636 self.scroll_handle
1637 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1638 cx.notify()
1639 }
1640
1641 fn visible(&self) -> bool {
1642 !self.actions.is_empty()
1643 }
1644
1645 fn render(
1646 &self,
1647 cursor_position: DisplayPoint,
1648 _style: &EditorStyle,
1649 max_height: Pixels,
1650 cx: &mut ViewContext<Editor>,
1651 ) -> (ContextMenuOrigin, AnyElement) {
1652 let actions = self.actions.clone();
1653 let selected_item = self.selected_item;
1654 let element = uniform_list(
1655 cx.view().clone(),
1656 "code_actions_menu",
1657 self.actions.len(),
1658 move |_this, range, cx| {
1659 actions
1660 .iter()
1661 .skip(range.start)
1662 .take(range.end - range.start)
1663 .enumerate()
1664 .map(|(ix, action)| {
1665 let item_ix = range.start + ix;
1666 let selected = selected_item == item_ix;
1667 let colors = cx.theme().colors();
1668 div()
1669 .px_1()
1670 .rounded_md()
1671 .text_color(colors.text)
1672 .when(selected, |style| {
1673 style
1674 .bg(colors.element_active)
1675 .text_color(colors.text_accent)
1676 })
1677 .hover(|style| {
1678 style
1679 .bg(colors.element_hover)
1680 .text_color(colors.text_accent)
1681 })
1682 .whitespace_nowrap()
1683 .when_some(action.as_code_action(), |this, action| {
1684 this.on_mouse_down(
1685 MouseButton::Left,
1686 cx.listener(move |editor, _, cx| {
1687 cx.stop_propagation();
1688 if let Some(task) = editor.confirm_code_action(
1689 &ConfirmCodeAction {
1690 item_ix: Some(item_ix),
1691 },
1692 cx,
1693 ) {
1694 task.detach_and_log_err(cx)
1695 }
1696 }),
1697 )
1698 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1699 .child(SharedString::from(
1700 action.lsp_action.title.replace("\n", ""),
1701 ))
1702 })
1703 .when_some(action.as_task(), |this, task| {
1704 this.on_mouse_down(
1705 MouseButton::Left,
1706 cx.listener(move |editor, _, cx| {
1707 cx.stop_propagation();
1708 if let Some(task) = editor.confirm_code_action(
1709 &ConfirmCodeAction {
1710 item_ix: Some(item_ix),
1711 },
1712 cx,
1713 ) {
1714 task.detach_and_log_err(cx)
1715 }
1716 }),
1717 )
1718 .child(SharedString::from(task.resolved_label.replace("\n", "")))
1719 })
1720 })
1721 .collect()
1722 },
1723 )
1724 .elevation_1(cx)
1725 .p_1()
1726 .max_h(max_height)
1727 .occlude()
1728 .track_scroll(self.scroll_handle.clone())
1729 .with_width_from_item(
1730 self.actions
1731 .iter()
1732 .enumerate()
1733 .max_by_key(|(_, action)| match action {
1734 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1735 CodeActionsItem::CodeAction { action, .. } => {
1736 action.lsp_action.title.chars().count()
1737 }
1738 })
1739 .map(|(ix, _)| ix),
1740 )
1741 .with_sizing_behavior(ListSizingBehavior::Infer)
1742 .into_any_element();
1743
1744 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1745 ContextMenuOrigin::GutterIndicator(row)
1746 } else {
1747 ContextMenuOrigin::EditorPoint(cursor_position)
1748 };
1749
1750 (cursor_position, element)
1751 }
1752}
1753
1754#[derive(Debug)]
1755struct ActiveDiagnosticGroup {
1756 primary_range: Range<Anchor>,
1757 primary_message: String,
1758 group_id: usize,
1759 blocks: HashMap<CustomBlockId, Diagnostic>,
1760 is_valid: bool,
1761}
1762
1763#[derive(Serialize, Deserialize, Clone, Debug)]
1764pub struct ClipboardSelection {
1765 pub len: usize,
1766 pub is_entire_line: bool,
1767 pub first_line_indent: u32,
1768}
1769
1770#[derive(Debug)]
1771pub(crate) struct NavigationData {
1772 cursor_anchor: Anchor,
1773 cursor_position: Point,
1774 scroll_anchor: ScrollAnchor,
1775 scroll_top_row: u32,
1776}
1777
1778#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1779pub enum GotoDefinitionKind {
1780 Symbol,
1781 Declaration,
1782 Type,
1783 Implementation,
1784}
1785
1786#[derive(Debug, Clone)]
1787enum InlayHintRefreshReason {
1788 Toggle(bool),
1789 SettingsChange(InlayHintSettings),
1790 NewLinesShown,
1791 BufferEdited(HashSet<Arc<Language>>),
1792 RefreshRequested,
1793 ExcerptsRemoved(Vec<ExcerptId>),
1794}
1795
1796impl InlayHintRefreshReason {
1797 fn description(&self) -> &'static str {
1798 match self {
1799 Self::Toggle(_) => "toggle",
1800 Self::SettingsChange(_) => "settings change",
1801 Self::NewLinesShown => "new lines shown",
1802 Self::BufferEdited(_) => "buffer edited",
1803 Self::RefreshRequested => "refresh requested",
1804 Self::ExcerptsRemoved(_) => "excerpts removed",
1805 }
1806 }
1807}
1808
1809pub(crate) struct FocusedBlock {
1810 id: BlockId,
1811 focus_handle: WeakFocusHandle,
1812}
1813
1814#[derive(Clone)]
1815struct JumpData {
1816 excerpt_id: ExcerptId,
1817 position: Point,
1818 anchor: text::Anchor,
1819 path: Option<project::ProjectPath>,
1820 line_offset_from_top: u32,
1821}
1822
1823impl Editor {
1824 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1825 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1826 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1827 Self::new(
1828 EditorMode::SingleLine { auto_width: false },
1829 buffer,
1830 None,
1831 false,
1832 cx,
1833 )
1834 }
1835
1836 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1837 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1838 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1839 Self::new(EditorMode::Full, buffer, None, false, cx)
1840 }
1841
1842 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1843 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1844 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1845 Self::new(
1846 EditorMode::SingleLine { auto_width: true },
1847 buffer,
1848 None,
1849 false,
1850 cx,
1851 )
1852 }
1853
1854 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1855 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1856 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1857 Self::new(
1858 EditorMode::AutoHeight { max_lines },
1859 buffer,
1860 None,
1861 false,
1862 cx,
1863 )
1864 }
1865
1866 pub fn for_buffer(
1867 buffer: Model<Buffer>,
1868 project: Option<Model<Project>>,
1869 cx: &mut ViewContext<Self>,
1870 ) -> Self {
1871 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1872 Self::new(EditorMode::Full, buffer, project, false, cx)
1873 }
1874
1875 pub fn for_multibuffer(
1876 buffer: Model<MultiBuffer>,
1877 project: Option<Model<Project>>,
1878 show_excerpt_controls: bool,
1879 cx: &mut ViewContext<Self>,
1880 ) -> Self {
1881 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1882 }
1883
1884 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1885 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1886 let mut clone = Self::new(
1887 self.mode,
1888 self.buffer.clone(),
1889 self.project.clone(),
1890 show_excerpt_controls,
1891 cx,
1892 );
1893 self.display_map.update(cx, |display_map, cx| {
1894 let snapshot = display_map.snapshot(cx);
1895 clone.display_map.update(cx, |display_map, cx| {
1896 display_map.set_state(&snapshot, cx);
1897 });
1898 });
1899 clone.selections.clone_state(&self.selections);
1900 clone.scroll_manager.clone_state(&self.scroll_manager);
1901 clone.searchable = self.searchable;
1902 clone
1903 }
1904
1905 pub fn new(
1906 mode: EditorMode,
1907 buffer: Model<MultiBuffer>,
1908 project: Option<Model<Project>>,
1909 show_excerpt_controls: bool,
1910 cx: &mut ViewContext<Self>,
1911 ) -> Self {
1912 let style = cx.text_style();
1913 let font_size = style.font_size.to_pixels(cx.rem_size());
1914 let editor = cx.view().downgrade();
1915 let fold_placeholder = FoldPlaceholder {
1916 constrain_width: true,
1917 render: Arc::new(move |fold_id, fold_range, cx| {
1918 let editor = editor.clone();
1919 div()
1920 .id(fold_id)
1921 .bg(cx.theme().colors().ghost_element_background)
1922 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1923 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1924 .rounded_sm()
1925 .size_full()
1926 .cursor_pointer()
1927 .child("⋯")
1928 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1929 .on_click(move |_, cx| {
1930 editor
1931 .update(cx, |editor, cx| {
1932 editor.unfold_ranges(
1933 &[fold_range.start..fold_range.end],
1934 true,
1935 false,
1936 cx,
1937 );
1938 cx.stop_propagation();
1939 })
1940 .ok();
1941 })
1942 .into_any()
1943 }),
1944 merge_adjacent: true,
1945 ..Default::default()
1946 };
1947 let display_map = cx.new_model(|cx| {
1948 DisplayMap::new(
1949 buffer.clone(),
1950 style.font(),
1951 font_size,
1952 None,
1953 show_excerpt_controls,
1954 FILE_HEADER_HEIGHT,
1955 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1956 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1957 fold_placeholder,
1958 cx,
1959 )
1960 });
1961
1962 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1963
1964 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1965
1966 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1967 .then(|| language_settings::SoftWrap::None);
1968
1969 let mut project_subscriptions = Vec::new();
1970 if mode == EditorMode::Full {
1971 if let Some(project) = project.as_ref() {
1972 if buffer.read(cx).is_singleton() {
1973 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1974 cx.emit(EditorEvent::TitleChanged);
1975 }));
1976 }
1977 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1978 if let project::Event::RefreshInlayHints = event {
1979 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1980 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1981 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1982 let focus_handle = editor.focus_handle(cx);
1983 if focus_handle.is_focused(cx) {
1984 let snapshot = buffer.read(cx).snapshot();
1985 for (range, snippet) in snippet_edits {
1986 let editor_range =
1987 language::range_from_lsp(*range).to_offset(&snapshot);
1988 editor
1989 .insert_snippet(&[editor_range], snippet.clone(), cx)
1990 .ok();
1991 }
1992 }
1993 }
1994 }
1995 }));
1996 if let Some(task_inventory) = project
1997 .read(cx)
1998 .task_store()
1999 .read(cx)
2000 .task_inventory()
2001 .cloned()
2002 {
2003 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
2004 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
2005 }));
2006 }
2007 }
2008 }
2009
2010 let buffer_snapshot = buffer.read(cx).snapshot(cx);
2011
2012 let inlay_hint_settings =
2013 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
2014 let focus_handle = cx.focus_handle();
2015 cx.on_focus(&focus_handle, Self::handle_focus).detach();
2016 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
2017 .detach();
2018 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
2019 .detach();
2020 cx.on_blur(&focus_handle, Self::handle_blur).detach();
2021
2022 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
2023 Some(false)
2024 } else {
2025 None
2026 };
2027
2028 let mut code_action_providers = Vec::new();
2029 if let Some(project) = project.clone() {
2030 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
2031 code_action_providers.push(Arc::new(project) as Arc<_>);
2032 }
2033
2034 let mut this = Self {
2035 focus_handle,
2036 show_cursor_when_unfocused: false,
2037 last_focused_descendant: None,
2038 buffer: buffer.clone(),
2039 display_map: display_map.clone(),
2040 selections,
2041 scroll_manager: ScrollManager::new(cx),
2042 columnar_selection_tail: None,
2043 add_selections_state: None,
2044 select_next_state: None,
2045 select_prev_state: None,
2046 selection_history: Default::default(),
2047 autoclose_regions: Default::default(),
2048 snippet_stack: Default::default(),
2049 select_larger_syntax_node_stack: Vec::new(),
2050 ime_transaction: Default::default(),
2051 active_diagnostics: None,
2052 soft_wrap_mode_override,
2053 completion_provider: project.clone().map(|project| Box::new(project) as _),
2054 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
2055 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
2056 project,
2057 blink_manager: blink_manager.clone(),
2058 show_local_selections: true,
2059 mode,
2060 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2061 show_gutter: mode == EditorMode::Full,
2062 show_line_numbers: None,
2063 use_relative_line_numbers: None,
2064 show_git_diff_gutter: None,
2065 show_code_actions: None,
2066 show_runnables: None,
2067 show_wrap_guides: None,
2068 show_indent_guides,
2069 placeholder_text: None,
2070 highlight_order: 0,
2071 highlighted_rows: HashMap::default(),
2072 background_highlights: Default::default(),
2073 gutter_highlights: TreeMap::default(),
2074 scrollbar_marker_state: ScrollbarMarkerState::default(),
2075 active_indent_guides_state: ActiveIndentGuidesState::default(),
2076 nav_history: None,
2077 context_menu: RwLock::new(None),
2078 mouse_context_menu: None,
2079 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2080 completion_tasks: Default::default(),
2081 signature_help_state: SignatureHelpState::default(),
2082 auto_signature_help: None,
2083 find_all_references_task_sources: Vec::new(),
2084 next_completion_id: 0,
2085 next_inlay_id: 0,
2086 code_action_providers,
2087 available_code_actions: Default::default(),
2088 code_actions_task: Default::default(),
2089 document_highlights_task: Default::default(),
2090 linked_editing_range_task: Default::default(),
2091 pending_rename: Default::default(),
2092 searchable: true,
2093 cursor_shape: EditorSettings::get_global(cx)
2094 .cursor_shape
2095 .unwrap_or_default(),
2096 current_line_highlight: None,
2097 autoindent_mode: Some(AutoindentMode::EachLine),
2098 collapse_matches: false,
2099 workspace: None,
2100 input_enabled: true,
2101 use_modal_editing: mode == EditorMode::Full,
2102 read_only: false,
2103 use_autoclose: true,
2104 use_auto_surround: true,
2105 auto_replace_emoji_shortcode: false,
2106 leader_peer_id: None,
2107 remote_id: None,
2108 hover_state: Default::default(),
2109 hovered_link_state: Default::default(),
2110 inline_completion_provider: None,
2111 active_inline_completion: None,
2112 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2113 diff_map: DiffMap::default(),
2114 gutter_hovered: false,
2115 pixel_position_of_newest_cursor: None,
2116 last_bounds: None,
2117 expect_bounds_change: None,
2118 gutter_dimensions: GutterDimensions::default(),
2119 style: None,
2120 show_cursor_names: false,
2121 hovered_cursors: Default::default(),
2122 next_editor_action_id: EditorActionId::default(),
2123 editor_actions: Rc::default(),
2124 show_inline_completions_override: None,
2125 enable_inline_completions: true,
2126 custom_context_menu: None,
2127 show_git_blame_gutter: false,
2128 show_git_blame_inline: false,
2129 show_selection_menu: None,
2130 show_git_blame_inline_delay_task: None,
2131 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2132 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2133 .session
2134 .restore_unsaved_buffers,
2135 blame: None,
2136 blame_subscription: None,
2137 tasks: Default::default(),
2138 _subscriptions: vec![
2139 cx.observe(&buffer, Self::on_buffer_changed),
2140 cx.subscribe(&buffer, Self::on_buffer_event),
2141 cx.observe(&display_map, Self::on_display_map_changed),
2142 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2143 cx.observe_global::<SettingsStore>(Self::settings_changed),
2144 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2145 cx.observe_window_activation(|editor, cx| {
2146 let active = cx.is_window_active();
2147 editor.blink_manager.update(cx, |blink_manager, cx| {
2148 if active {
2149 blink_manager.enable(cx);
2150 } else {
2151 blink_manager.disable(cx);
2152 }
2153 });
2154 }),
2155 ],
2156 tasks_update_task: None,
2157 linked_edit_ranges: Default::default(),
2158 previous_search_ranges: None,
2159 breadcrumb_header: None,
2160 focused_block: None,
2161 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2162 addons: HashMap::default(),
2163 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2164 text_style_refinement: None,
2165 };
2166 this.tasks_update_task = Some(this.refresh_runnables(cx));
2167 this._subscriptions.extend(project_subscriptions);
2168
2169 this.end_selection(cx);
2170 this.scroll_manager.show_scrollbar(cx);
2171
2172 if mode == EditorMode::Full {
2173 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2174 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2175
2176 if this.git_blame_inline_enabled {
2177 this.git_blame_inline_enabled = true;
2178 this.start_git_blame_inline(false, cx);
2179 }
2180 }
2181
2182 this.report_editor_event("open", None, cx);
2183 this
2184 }
2185
2186 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2187 self.mouse_context_menu
2188 .as_ref()
2189 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2190 }
2191
2192 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2193 let mut key_context = KeyContext::new_with_defaults();
2194 key_context.add("Editor");
2195 let mode = match self.mode {
2196 EditorMode::SingleLine { .. } => "single_line",
2197 EditorMode::AutoHeight { .. } => "auto_height",
2198 EditorMode::Full => "full",
2199 };
2200
2201 if EditorSettings::jupyter_enabled(cx) {
2202 key_context.add("jupyter");
2203 }
2204
2205 key_context.set("mode", mode);
2206 if self.pending_rename.is_some() {
2207 key_context.add("renaming");
2208 }
2209 if self.context_menu_visible() {
2210 match self.context_menu.read().as_ref() {
2211 Some(ContextMenu::Completions(_)) => {
2212 key_context.add("menu");
2213 key_context.add("showing_completions")
2214 }
2215 Some(ContextMenu::CodeActions(_)) => {
2216 key_context.add("menu");
2217 key_context.add("showing_code_actions")
2218 }
2219 None => {}
2220 }
2221 }
2222
2223 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2224 if !self.focus_handle(cx).contains_focused(cx)
2225 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2226 {
2227 for addon in self.addons.values() {
2228 addon.extend_key_context(&mut key_context, cx)
2229 }
2230 }
2231
2232 if let Some(extension) = self
2233 .buffer
2234 .read(cx)
2235 .as_singleton()
2236 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2237 {
2238 key_context.set("extension", extension.to_string());
2239 }
2240
2241 if self.has_active_inline_completion() {
2242 key_context.add("copilot_suggestion");
2243 key_context.add("inline_completion");
2244 }
2245
2246 key_context
2247 }
2248
2249 pub fn new_file(
2250 workspace: &mut Workspace,
2251 _: &workspace::NewFile,
2252 cx: &mut ViewContext<Workspace>,
2253 ) {
2254 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2255 "Failed to create buffer",
2256 cx,
2257 |e, _| match e.error_code() {
2258 ErrorCode::RemoteUpgradeRequired => Some(format!(
2259 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2260 e.error_tag("required").unwrap_or("the latest version")
2261 )),
2262 _ => None,
2263 },
2264 );
2265 }
2266
2267 pub fn new_in_workspace(
2268 workspace: &mut Workspace,
2269 cx: &mut ViewContext<Workspace>,
2270 ) -> Task<Result<View<Editor>>> {
2271 let project = workspace.project().clone();
2272 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2273
2274 cx.spawn(|workspace, mut cx| async move {
2275 let buffer = create.await?;
2276 workspace.update(&mut cx, |workspace, cx| {
2277 let editor =
2278 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2279 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2280 editor
2281 })
2282 })
2283 }
2284
2285 fn new_file_vertical(
2286 workspace: &mut Workspace,
2287 _: &workspace::NewFileSplitVertical,
2288 cx: &mut ViewContext<Workspace>,
2289 ) {
2290 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2291 }
2292
2293 fn new_file_horizontal(
2294 workspace: &mut Workspace,
2295 _: &workspace::NewFileSplitHorizontal,
2296 cx: &mut ViewContext<Workspace>,
2297 ) {
2298 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2299 }
2300
2301 fn new_file_in_direction(
2302 workspace: &mut Workspace,
2303 direction: SplitDirection,
2304 cx: &mut ViewContext<Workspace>,
2305 ) {
2306 let project = workspace.project().clone();
2307 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2308
2309 cx.spawn(|workspace, mut cx| async move {
2310 let buffer = create.await?;
2311 workspace.update(&mut cx, move |workspace, cx| {
2312 workspace.split_item(
2313 direction,
2314 Box::new(
2315 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2316 ),
2317 cx,
2318 )
2319 })?;
2320 anyhow::Ok(())
2321 })
2322 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2323 ErrorCode::RemoteUpgradeRequired => Some(format!(
2324 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2325 e.error_tag("required").unwrap_or("the latest version")
2326 )),
2327 _ => None,
2328 });
2329 }
2330
2331 pub fn leader_peer_id(&self) -> Option<PeerId> {
2332 self.leader_peer_id
2333 }
2334
2335 pub fn buffer(&self) -> &Model<MultiBuffer> {
2336 &self.buffer
2337 }
2338
2339 pub fn workspace(&self) -> Option<View<Workspace>> {
2340 self.workspace.as_ref()?.0.upgrade()
2341 }
2342
2343 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2344 self.buffer().read(cx).title(cx)
2345 }
2346
2347 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2348 let git_blame_gutter_max_author_length = self
2349 .render_git_blame_gutter(cx)
2350 .then(|| {
2351 if let Some(blame) = self.blame.as_ref() {
2352 let max_author_length =
2353 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2354 Some(max_author_length)
2355 } else {
2356 None
2357 }
2358 })
2359 .flatten();
2360
2361 EditorSnapshot {
2362 mode: self.mode,
2363 show_gutter: self.show_gutter,
2364 show_line_numbers: self.show_line_numbers,
2365 show_git_diff_gutter: self.show_git_diff_gutter,
2366 show_code_actions: self.show_code_actions,
2367 show_runnables: self.show_runnables,
2368 git_blame_gutter_max_author_length,
2369 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2370 scroll_anchor: self.scroll_manager.anchor(),
2371 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2372 placeholder_text: self.placeholder_text.clone(),
2373 diff_map: self.diff_map.snapshot(),
2374 is_focused: self.focus_handle.is_focused(cx),
2375 current_line_highlight: self
2376 .current_line_highlight
2377 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2378 gutter_hovered: self.gutter_hovered,
2379 }
2380 }
2381
2382 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2383 self.buffer.read(cx).language_at(point, cx)
2384 }
2385
2386 pub fn file_at<T: ToOffset>(
2387 &self,
2388 point: T,
2389 cx: &AppContext,
2390 ) -> Option<Arc<dyn language::File>> {
2391 self.buffer.read(cx).read(cx).file_at(point).cloned()
2392 }
2393
2394 pub fn active_excerpt(
2395 &self,
2396 cx: &AppContext,
2397 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2398 self.buffer
2399 .read(cx)
2400 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2401 }
2402
2403 pub fn mode(&self) -> EditorMode {
2404 self.mode
2405 }
2406
2407 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2408 self.collaboration_hub.as_deref()
2409 }
2410
2411 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2412 self.collaboration_hub = Some(hub);
2413 }
2414
2415 pub fn set_custom_context_menu(
2416 &mut self,
2417 f: impl 'static
2418 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2419 ) {
2420 self.custom_context_menu = Some(Box::new(f))
2421 }
2422
2423 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2424 self.completion_provider = provider;
2425 }
2426
2427 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2428 self.semantics_provider.clone()
2429 }
2430
2431 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2432 self.semantics_provider = provider;
2433 }
2434
2435 pub fn set_inline_completion_provider<T>(
2436 &mut self,
2437 provider: Option<Model<T>>,
2438 cx: &mut ViewContext<Self>,
2439 ) where
2440 T: InlineCompletionProvider,
2441 {
2442 self.inline_completion_provider =
2443 provider.map(|provider| RegisteredInlineCompletionProvider {
2444 _subscription: cx.observe(&provider, |this, _, cx| {
2445 if this.focus_handle.is_focused(cx) {
2446 this.update_visible_inline_completion(cx);
2447 }
2448 }),
2449 provider: Arc::new(provider),
2450 });
2451 self.refresh_inline_completion(false, false, cx);
2452 }
2453
2454 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2455 self.placeholder_text.as_deref()
2456 }
2457
2458 pub fn set_placeholder_text(
2459 &mut self,
2460 placeholder_text: impl Into<Arc<str>>,
2461 cx: &mut ViewContext<Self>,
2462 ) {
2463 let placeholder_text = Some(placeholder_text.into());
2464 if self.placeholder_text != placeholder_text {
2465 self.placeholder_text = placeholder_text;
2466 cx.notify();
2467 }
2468 }
2469
2470 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2471 self.cursor_shape = cursor_shape;
2472
2473 // Disrupt blink for immediate user feedback that the cursor shape has changed
2474 self.blink_manager.update(cx, BlinkManager::show_cursor);
2475
2476 cx.notify();
2477 }
2478
2479 pub fn set_current_line_highlight(
2480 &mut self,
2481 current_line_highlight: Option<CurrentLineHighlight>,
2482 ) {
2483 self.current_line_highlight = current_line_highlight;
2484 }
2485
2486 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2487 self.collapse_matches = collapse_matches;
2488 }
2489
2490 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2491 if self.collapse_matches {
2492 return range.start..range.start;
2493 }
2494 range.clone()
2495 }
2496
2497 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2498 if self.display_map.read(cx).clip_at_line_ends != clip {
2499 self.display_map
2500 .update(cx, |map, _| map.clip_at_line_ends = clip);
2501 }
2502 }
2503
2504 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2505 self.input_enabled = input_enabled;
2506 }
2507
2508 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2509 self.enable_inline_completions = enabled;
2510 }
2511
2512 pub fn set_autoindent(&mut self, autoindent: bool) {
2513 if autoindent {
2514 self.autoindent_mode = Some(AutoindentMode::EachLine);
2515 } else {
2516 self.autoindent_mode = None;
2517 }
2518 }
2519
2520 pub fn read_only(&self, cx: &AppContext) -> bool {
2521 self.read_only || self.buffer.read(cx).read_only()
2522 }
2523
2524 pub fn set_read_only(&mut self, read_only: bool) {
2525 self.read_only = read_only;
2526 }
2527
2528 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2529 self.use_autoclose = autoclose;
2530 }
2531
2532 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2533 self.use_auto_surround = auto_surround;
2534 }
2535
2536 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2537 self.auto_replace_emoji_shortcode = auto_replace;
2538 }
2539
2540 pub fn toggle_inline_completions(
2541 &mut self,
2542 _: &ToggleInlineCompletions,
2543 cx: &mut ViewContext<Self>,
2544 ) {
2545 if self.show_inline_completions_override.is_some() {
2546 self.set_show_inline_completions(None, cx);
2547 } else {
2548 let cursor = self.selections.newest_anchor().head();
2549 if let Some((buffer, cursor_buffer_position)) =
2550 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2551 {
2552 let show_inline_completions =
2553 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2554 self.set_show_inline_completions(Some(show_inline_completions), cx);
2555 }
2556 }
2557 }
2558
2559 pub fn set_show_inline_completions(
2560 &mut self,
2561 show_inline_completions: Option<bool>,
2562 cx: &mut ViewContext<Self>,
2563 ) {
2564 self.show_inline_completions_override = show_inline_completions;
2565 self.refresh_inline_completion(false, true, cx);
2566 }
2567
2568 fn should_show_inline_completions(
2569 &self,
2570 buffer: &Model<Buffer>,
2571 buffer_position: language::Anchor,
2572 cx: &AppContext,
2573 ) -> bool {
2574 if !self.snippet_stack.is_empty() {
2575 return false;
2576 }
2577
2578 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2579 return false;
2580 }
2581
2582 if let Some(provider) = self.inline_completion_provider() {
2583 if let Some(show_inline_completions) = self.show_inline_completions_override {
2584 show_inline_completions
2585 } else {
2586 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2587 }
2588 } else {
2589 false
2590 }
2591 }
2592
2593 fn inline_completions_disabled_in_scope(
2594 &self,
2595 buffer: &Model<Buffer>,
2596 buffer_position: language::Anchor,
2597 cx: &AppContext,
2598 ) -> bool {
2599 let snapshot = buffer.read(cx).snapshot();
2600 let settings = snapshot.settings_at(buffer_position, cx);
2601
2602 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2603 return false;
2604 };
2605
2606 scope.override_name().map_or(false, |scope_name| {
2607 settings
2608 .inline_completions_disabled_in
2609 .iter()
2610 .any(|s| s == scope_name)
2611 })
2612 }
2613
2614 pub fn set_use_modal_editing(&mut self, to: bool) {
2615 self.use_modal_editing = to;
2616 }
2617
2618 pub fn use_modal_editing(&self) -> bool {
2619 self.use_modal_editing
2620 }
2621
2622 fn selections_did_change(
2623 &mut self,
2624 local: bool,
2625 old_cursor_position: &Anchor,
2626 show_completions: bool,
2627 cx: &mut ViewContext<Self>,
2628 ) {
2629 cx.invalidate_character_coordinates();
2630
2631 // Copy selections to primary selection buffer
2632 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2633 if local {
2634 let selections = self.selections.all::<usize>(cx);
2635 let buffer_handle = self.buffer.read(cx).read(cx);
2636
2637 let mut text = String::new();
2638 for (index, selection) in selections.iter().enumerate() {
2639 let text_for_selection = buffer_handle
2640 .text_for_range(selection.start..selection.end)
2641 .collect::<String>();
2642
2643 text.push_str(&text_for_selection);
2644 if index != selections.len() - 1 {
2645 text.push('\n');
2646 }
2647 }
2648
2649 if !text.is_empty() {
2650 cx.write_to_primary(ClipboardItem::new_string(text));
2651 }
2652 }
2653
2654 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2655 self.buffer.update(cx, |buffer, cx| {
2656 buffer.set_active_selections(
2657 &self.selections.disjoint_anchors(),
2658 self.selections.line_mode,
2659 self.cursor_shape,
2660 cx,
2661 )
2662 });
2663 }
2664 let display_map = self
2665 .display_map
2666 .update(cx, |display_map, cx| display_map.snapshot(cx));
2667 let buffer = &display_map.buffer_snapshot;
2668 self.add_selections_state = None;
2669 self.select_next_state = None;
2670 self.select_prev_state = None;
2671 self.select_larger_syntax_node_stack.clear();
2672 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2673 self.snippet_stack
2674 .invalidate(&self.selections.disjoint_anchors(), buffer);
2675 self.take_rename(false, cx);
2676
2677 let new_cursor_position = self.selections.newest_anchor().head();
2678
2679 self.push_to_nav_history(
2680 *old_cursor_position,
2681 Some(new_cursor_position.to_point(buffer)),
2682 cx,
2683 );
2684
2685 if local {
2686 let new_cursor_position = self.selections.newest_anchor().head();
2687 let mut context_menu = self.context_menu.write();
2688 let completion_menu = match context_menu.as_ref() {
2689 Some(ContextMenu::Completions(menu)) => Some(menu),
2690
2691 _ => {
2692 *context_menu = None;
2693 None
2694 }
2695 };
2696
2697 if let Some(completion_menu) = completion_menu {
2698 let cursor_position = new_cursor_position.to_offset(buffer);
2699 let (word_range, kind) =
2700 buffer.surrounding_word(completion_menu.initial_position, true);
2701 if kind == Some(CharKind::Word)
2702 && word_range.to_inclusive().contains(&cursor_position)
2703 {
2704 let mut completion_menu = completion_menu.clone();
2705 drop(context_menu);
2706
2707 let query = Self::completion_query(buffer, cursor_position);
2708 cx.spawn(move |this, mut cx| async move {
2709 completion_menu
2710 .filter(query.as_deref(), cx.background_executor().clone())
2711 .await;
2712
2713 this.update(&mut cx, |this, cx| {
2714 let mut context_menu = this.context_menu.write();
2715 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2716 return;
2717 };
2718
2719 if menu.id > completion_menu.id {
2720 return;
2721 }
2722
2723 *context_menu = Some(ContextMenu::Completions(completion_menu));
2724 drop(context_menu);
2725 cx.notify();
2726 })
2727 })
2728 .detach();
2729
2730 if show_completions {
2731 self.show_completions(&ShowCompletions { trigger: None }, cx);
2732 }
2733 } else {
2734 drop(context_menu);
2735 self.hide_context_menu(cx);
2736 }
2737 } else {
2738 drop(context_menu);
2739 }
2740
2741 hide_hover(self, cx);
2742
2743 if old_cursor_position.to_display_point(&display_map).row()
2744 != new_cursor_position.to_display_point(&display_map).row()
2745 {
2746 self.available_code_actions.take();
2747 }
2748 self.refresh_code_actions(cx);
2749 self.refresh_document_highlights(cx);
2750 refresh_matching_bracket_highlights(self, cx);
2751 self.update_visible_inline_completion(cx);
2752 linked_editing_ranges::refresh_linked_ranges(self, cx);
2753 if self.git_blame_inline_enabled {
2754 self.start_inline_blame_timer(cx);
2755 }
2756 }
2757
2758 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2759 cx.emit(EditorEvent::SelectionsChanged { local });
2760
2761 if self.selections.disjoint_anchors().len() == 1 {
2762 cx.emit(SearchEvent::ActiveMatchChanged)
2763 }
2764 cx.notify();
2765 }
2766
2767 pub fn change_selections<R>(
2768 &mut self,
2769 autoscroll: Option<Autoscroll>,
2770 cx: &mut ViewContext<Self>,
2771 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2772 ) -> R {
2773 self.change_selections_inner(autoscroll, true, cx, change)
2774 }
2775
2776 pub fn change_selections_inner<R>(
2777 &mut self,
2778 autoscroll: Option<Autoscroll>,
2779 request_completions: bool,
2780 cx: &mut ViewContext<Self>,
2781 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2782 ) -> R {
2783 let old_cursor_position = self.selections.newest_anchor().head();
2784 self.push_to_selection_history();
2785
2786 let (changed, result) = self.selections.change_with(cx, change);
2787
2788 if changed {
2789 if let Some(autoscroll) = autoscroll {
2790 self.request_autoscroll(autoscroll, cx);
2791 }
2792 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2793
2794 if self.should_open_signature_help_automatically(
2795 &old_cursor_position,
2796 self.signature_help_state.backspace_pressed(),
2797 cx,
2798 ) {
2799 self.show_signature_help(&ShowSignatureHelp, cx);
2800 }
2801 self.signature_help_state.set_backspace_pressed(false);
2802 }
2803
2804 result
2805 }
2806
2807 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2808 where
2809 I: IntoIterator<Item = (Range<S>, T)>,
2810 S: ToOffset,
2811 T: Into<Arc<str>>,
2812 {
2813 if self.read_only(cx) {
2814 return;
2815 }
2816
2817 self.buffer
2818 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2819 }
2820
2821 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2822 where
2823 I: IntoIterator<Item = (Range<S>, T)>,
2824 S: ToOffset,
2825 T: Into<Arc<str>>,
2826 {
2827 if self.read_only(cx) {
2828 return;
2829 }
2830
2831 self.buffer.update(cx, |buffer, cx| {
2832 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2833 });
2834 }
2835
2836 pub fn edit_with_block_indent<I, S, T>(
2837 &mut self,
2838 edits: I,
2839 original_indent_columns: Vec<u32>,
2840 cx: &mut ViewContext<Self>,
2841 ) where
2842 I: IntoIterator<Item = (Range<S>, T)>,
2843 S: ToOffset,
2844 T: Into<Arc<str>>,
2845 {
2846 if self.read_only(cx) {
2847 return;
2848 }
2849
2850 self.buffer.update(cx, |buffer, cx| {
2851 buffer.edit(
2852 edits,
2853 Some(AutoindentMode::Block {
2854 original_indent_columns,
2855 }),
2856 cx,
2857 )
2858 });
2859 }
2860
2861 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2862 self.hide_context_menu(cx);
2863
2864 match phase {
2865 SelectPhase::Begin {
2866 position,
2867 add,
2868 click_count,
2869 } => self.begin_selection(position, add, click_count, cx),
2870 SelectPhase::BeginColumnar {
2871 position,
2872 goal_column,
2873 reset,
2874 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2875 SelectPhase::Extend {
2876 position,
2877 click_count,
2878 } => self.extend_selection(position, click_count, cx),
2879 SelectPhase::Update {
2880 position,
2881 goal_column,
2882 scroll_delta,
2883 } => self.update_selection(position, goal_column, scroll_delta, cx),
2884 SelectPhase::End => self.end_selection(cx),
2885 }
2886 }
2887
2888 fn extend_selection(
2889 &mut self,
2890 position: DisplayPoint,
2891 click_count: usize,
2892 cx: &mut ViewContext<Self>,
2893 ) {
2894 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2895 let tail = self.selections.newest::<usize>(cx).tail();
2896 self.begin_selection(position, false, click_count, cx);
2897
2898 let position = position.to_offset(&display_map, Bias::Left);
2899 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2900
2901 let mut pending_selection = self
2902 .selections
2903 .pending_anchor()
2904 .expect("extend_selection not called with pending selection");
2905 if position >= tail {
2906 pending_selection.start = tail_anchor;
2907 } else {
2908 pending_selection.end = tail_anchor;
2909 pending_selection.reversed = true;
2910 }
2911
2912 let mut pending_mode = self.selections.pending_mode().unwrap();
2913 match &mut pending_mode {
2914 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2915 _ => {}
2916 }
2917
2918 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2919 s.set_pending(pending_selection, pending_mode)
2920 });
2921 }
2922
2923 fn begin_selection(
2924 &mut self,
2925 position: DisplayPoint,
2926 add: bool,
2927 click_count: usize,
2928 cx: &mut ViewContext<Self>,
2929 ) {
2930 if !self.focus_handle.is_focused(cx) {
2931 self.last_focused_descendant = None;
2932 cx.focus(&self.focus_handle);
2933 }
2934
2935 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2936 let buffer = &display_map.buffer_snapshot;
2937 let newest_selection = self.selections.newest_anchor().clone();
2938 let position = display_map.clip_point(position, Bias::Left);
2939
2940 let start;
2941 let end;
2942 let mode;
2943 let mut auto_scroll;
2944 match click_count {
2945 1 => {
2946 start = buffer.anchor_before(position.to_point(&display_map));
2947 end = start;
2948 mode = SelectMode::Character;
2949 auto_scroll = true;
2950 }
2951 2 => {
2952 let range = movement::surrounding_word(&display_map, position);
2953 start = buffer.anchor_before(range.start.to_point(&display_map));
2954 end = buffer.anchor_before(range.end.to_point(&display_map));
2955 mode = SelectMode::Word(start..end);
2956 auto_scroll = true;
2957 }
2958 3 => {
2959 let position = display_map
2960 .clip_point(position, Bias::Left)
2961 .to_point(&display_map);
2962 let line_start = display_map.prev_line_boundary(position).0;
2963 let next_line_start = buffer.clip_point(
2964 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2965 Bias::Left,
2966 );
2967 start = buffer.anchor_before(line_start);
2968 end = buffer.anchor_before(next_line_start);
2969 mode = SelectMode::Line(start..end);
2970 auto_scroll = true;
2971 }
2972 _ => {
2973 start = buffer.anchor_before(0);
2974 end = buffer.anchor_before(buffer.len());
2975 mode = SelectMode::All;
2976 auto_scroll = false;
2977 }
2978 }
2979 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2980
2981 let point_to_delete: Option<usize> = {
2982 let selected_points: Vec<Selection<Point>> =
2983 self.selections.disjoint_in_range(start..end, cx);
2984
2985 if !add || click_count > 1 {
2986 None
2987 } else if !selected_points.is_empty() {
2988 Some(selected_points[0].id)
2989 } else {
2990 let clicked_point_already_selected =
2991 self.selections.disjoint.iter().find(|selection| {
2992 selection.start.to_point(buffer) == start.to_point(buffer)
2993 || selection.end.to_point(buffer) == end.to_point(buffer)
2994 });
2995
2996 clicked_point_already_selected.map(|selection| selection.id)
2997 }
2998 };
2999
3000 let selections_count = self.selections.count();
3001
3002 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
3003 if let Some(point_to_delete) = point_to_delete {
3004 s.delete(point_to_delete);
3005
3006 if selections_count == 1 {
3007 s.set_pending_anchor_range(start..end, mode);
3008 }
3009 } else {
3010 if !add {
3011 s.clear_disjoint();
3012 } else if click_count > 1 {
3013 s.delete(newest_selection.id)
3014 }
3015
3016 s.set_pending_anchor_range(start..end, mode);
3017 }
3018 });
3019 }
3020
3021 fn begin_columnar_selection(
3022 &mut self,
3023 position: DisplayPoint,
3024 goal_column: u32,
3025 reset: bool,
3026 cx: &mut ViewContext<Self>,
3027 ) {
3028 if !self.focus_handle.is_focused(cx) {
3029 self.last_focused_descendant = None;
3030 cx.focus(&self.focus_handle);
3031 }
3032
3033 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3034
3035 if reset {
3036 let pointer_position = display_map
3037 .buffer_snapshot
3038 .anchor_before(position.to_point(&display_map));
3039
3040 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
3041 s.clear_disjoint();
3042 s.set_pending_anchor_range(
3043 pointer_position..pointer_position,
3044 SelectMode::Character,
3045 );
3046 });
3047 }
3048
3049 let tail = self.selections.newest::<Point>(cx).tail();
3050 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
3051
3052 if !reset {
3053 self.select_columns(
3054 tail.to_display_point(&display_map),
3055 position,
3056 goal_column,
3057 &display_map,
3058 cx,
3059 );
3060 }
3061 }
3062
3063 fn update_selection(
3064 &mut self,
3065 position: DisplayPoint,
3066 goal_column: u32,
3067 scroll_delta: gpui::Point<f32>,
3068 cx: &mut ViewContext<Self>,
3069 ) {
3070 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3071
3072 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3073 let tail = tail.to_display_point(&display_map);
3074 self.select_columns(tail, position, goal_column, &display_map, cx);
3075 } else if let Some(mut pending) = self.selections.pending_anchor() {
3076 let buffer = self.buffer.read(cx).snapshot(cx);
3077 let head;
3078 let tail;
3079 let mode = self.selections.pending_mode().unwrap();
3080 match &mode {
3081 SelectMode::Character => {
3082 head = position.to_point(&display_map);
3083 tail = pending.tail().to_point(&buffer);
3084 }
3085 SelectMode::Word(original_range) => {
3086 let original_display_range = original_range.start.to_display_point(&display_map)
3087 ..original_range.end.to_display_point(&display_map);
3088 let original_buffer_range = original_display_range.start.to_point(&display_map)
3089 ..original_display_range.end.to_point(&display_map);
3090 if movement::is_inside_word(&display_map, position)
3091 || original_display_range.contains(&position)
3092 {
3093 let word_range = movement::surrounding_word(&display_map, position);
3094 if word_range.start < original_display_range.start {
3095 head = word_range.start.to_point(&display_map);
3096 } else {
3097 head = word_range.end.to_point(&display_map);
3098 }
3099 } else {
3100 head = position.to_point(&display_map);
3101 }
3102
3103 if head <= original_buffer_range.start {
3104 tail = original_buffer_range.end;
3105 } else {
3106 tail = original_buffer_range.start;
3107 }
3108 }
3109 SelectMode::Line(original_range) => {
3110 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3111
3112 let position = display_map
3113 .clip_point(position, Bias::Left)
3114 .to_point(&display_map);
3115 let line_start = display_map.prev_line_boundary(position).0;
3116 let next_line_start = buffer.clip_point(
3117 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3118 Bias::Left,
3119 );
3120
3121 if line_start < original_range.start {
3122 head = line_start
3123 } else {
3124 head = next_line_start
3125 }
3126
3127 if head <= original_range.start {
3128 tail = original_range.end;
3129 } else {
3130 tail = original_range.start;
3131 }
3132 }
3133 SelectMode::All => {
3134 return;
3135 }
3136 };
3137
3138 if head < tail {
3139 pending.start = buffer.anchor_before(head);
3140 pending.end = buffer.anchor_before(tail);
3141 pending.reversed = true;
3142 } else {
3143 pending.start = buffer.anchor_before(tail);
3144 pending.end = buffer.anchor_before(head);
3145 pending.reversed = false;
3146 }
3147
3148 self.change_selections(None, cx, |s| {
3149 s.set_pending(pending, mode);
3150 });
3151 } else {
3152 log::error!("update_selection dispatched with no pending selection");
3153 return;
3154 }
3155
3156 self.apply_scroll_delta(scroll_delta, cx);
3157 cx.notify();
3158 }
3159
3160 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3161 self.columnar_selection_tail.take();
3162 if self.selections.pending_anchor().is_some() {
3163 let selections = self.selections.all::<usize>(cx);
3164 self.change_selections(None, cx, |s| {
3165 s.select(selections);
3166 s.clear_pending();
3167 });
3168 }
3169 }
3170
3171 fn select_columns(
3172 &mut self,
3173 tail: DisplayPoint,
3174 head: DisplayPoint,
3175 goal_column: u32,
3176 display_map: &DisplaySnapshot,
3177 cx: &mut ViewContext<Self>,
3178 ) {
3179 let start_row = cmp::min(tail.row(), head.row());
3180 let end_row = cmp::max(tail.row(), head.row());
3181 let start_column = cmp::min(tail.column(), goal_column);
3182 let end_column = cmp::max(tail.column(), goal_column);
3183 let reversed = start_column < tail.column();
3184
3185 let selection_ranges = (start_row.0..=end_row.0)
3186 .map(DisplayRow)
3187 .filter_map(|row| {
3188 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3189 let start = display_map
3190 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3191 .to_point(display_map);
3192 let end = display_map
3193 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3194 .to_point(display_map);
3195 if reversed {
3196 Some(end..start)
3197 } else {
3198 Some(start..end)
3199 }
3200 } else {
3201 None
3202 }
3203 })
3204 .collect::<Vec<_>>();
3205
3206 self.change_selections(None, cx, |s| {
3207 s.select_ranges(selection_ranges);
3208 });
3209 cx.notify();
3210 }
3211
3212 pub fn has_pending_nonempty_selection(&self) -> bool {
3213 let pending_nonempty_selection = match self.selections.pending_anchor() {
3214 Some(Selection { start, end, .. }) => start != end,
3215 None => false,
3216 };
3217
3218 pending_nonempty_selection
3219 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3220 }
3221
3222 pub fn has_pending_selection(&self) -> bool {
3223 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3224 }
3225
3226 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3227 if self.clear_expanded_diff_hunks(cx) {
3228 cx.notify();
3229 return;
3230 }
3231 if self.dismiss_menus_and_popups(true, cx) {
3232 return;
3233 }
3234
3235 if self.mode == EditorMode::Full
3236 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3237 {
3238 return;
3239 }
3240
3241 cx.propagate();
3242 }
3243
3244 pub fn dismiss_menus_and_popups(
3245 &mut self,
3246 should_report_inline_completion_event: bool,
3247 cx: &mut ViewContext<Self>,
3248 ) -> bool {
3249 if self.take_rename(false, cx).is_some() {
3250 return true;
3251 }
3252
3253 if hide_hover(self, cx) {
3254 return true;
3255 }
3256
3257 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3258 return true;
3259 }
3260
3261 if self.hide_context_menu(cx).is_some() {
3262 return true;
3263 }
3264
3265 if self.mouse_context_menu.take().is_some() {
3266 return true;
3267 }
3268
3269 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3270 return true;
3271 }
3272
3273 if self.snippet_stack.pop().is_some() {
3274 return true;
3275 }
3276
3277 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3278 self.dismiss_diagnostics(cx);
3279 return true;
3280 }
3281
3282 false
3283 }
3284
3285 fn linked_editing_ranges_for(
3286 &self,
3287 selection: Range<text::Anchor>,
3288 cx: &AppContext,
3289 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3290 if self.linked_edit_ranges.is_empty() {
3291 return None;
3292 }
3293 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3294 selection.end.buffer_id.and_then(|end_buffer_id| {
3295 if selection.start.buffer_id != Some(end_buffer_id) {
3296 return None;
3297 }
3298 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3299 let snapshot = buffer.read(cx).snapshot();
3300 self.linked_edit_ranges
3301 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3302 .map(|ranges| (ranges, snapshot, buffer))
3303 })?;
3304 use text::ToOffset as TO;
3305 // find offset from the start of current range to current cursor position
3306 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3307
3308 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3309 let start_difference = start_offset - start_byte_offset;
3310 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3311 let end_difference = end_offset - start_byte_offset;
3312 // Current range has associated linked ranges.
3313 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3314 for range in linked_ranges.iter() {
3315 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3316 let end_offset = start_offset + end_difference;
3317 let start_offset = start_offset + start_difference;
3318 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3319 continue;
3320 }
3321 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3322 if s.start.buffer_id != selection.start.buffer_id
3323 || s.end.buffer_id != selection.end.buffer_id
3324 {
3325 return false;
3326 }
3327 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3328 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3329 }) {
3330 continue;
3331 }
3332 let start = buffer_snapshot.anchor_after(start_offset);
3333 let end = buffer_snapshot.anchor_after(end_offset);
3334 linked_edits
3335 .entry(buffer.clone())
3336 .or_default()
3337 .push(start..end);
3338 }
3339 Some(linked_edits)
3340 }
3341
3342 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3343 let text: Arc<str> = text.into();
3344
3345 if self.read_only(cx) {
3346 return;
3347 }
3348
3349 let selections = self.selections.all_adjusted(cx);
3350 let mut bracket_inserted = false;
3351 let mut edits = Vec::new();
3352 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3353 let mut new_selections = Vec::with_capacity(selections.len());
3354 let mut new_autoclose_regions = Vec::new();
3355 let snapshot = self.buffer.read(cx).read(cx);
3356
3357 for (selection, autoclose_region) in
3358 self.selections_with_autoclose_regions(selections, &snapshot)
3359 {
3360 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3361 // Determine if the inserted text matches the opening or closing
3362 // bracket of any of this language's bracket pairs.
3363 let mut bracket_pair = None;
3364 let mut is_bracket_pair_start = false;
3365 let mut is_bracket_pair_end = false;
3366 if !text.is_empty() {
3367 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3368 // and they are removing the character that triggered IME popup.
3369 for (pair, enabled) in scope.brackets() {
3370 if !pair.close && !pair.surround {
3371 continue;
3372 }
3373
3374 if enabled && pair.start.ends_with(text.as_ref()) {
3375 let prefix_len = pair.start.len() - text.len();
3376 let preceding_text_matches_prefix = prefix_len == 0
3377 || (selection.start.column >= (prefix_len as u32)
3378 && snapshot.contains_str_at(
3379 Point::new(
3380 selection.start.row,
3381 selection.start.column - (prefix_len as u32),
3382 ),
3383 &pair.start[..prefix_len],
3384 ));
3385 if preceding_text_matches_prefix {
3386 bracket_pair = Some(pair.clone());
3387 is_bracket_pair_start = true;
3388 break;
3389 }
3390 }
3391 if pair.end.as_str() == text.as_ref() {
3392 bracket_pair = Some(pair.clone());
3393 is_bracket_pair_end = true;
3394 break;
3395 }
3396 }
3397 }
3398
3399 if let Some(bracket_pair) = bracket_pair {
3400 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3401 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3402 let auto_surround =
3403 self.use_auto_surround && snapshot_settings.use_auto_surround;
3404 if selection.is_empty() {
3405 if is_bracket_pair_start {
3406 // If the inserted text is a suffix of an opening bracket and the
3407 // selection is preceded by the rest of the opening bracket, then
3408 // insert the closing bracket.
3409 let following_text_allows_autoclose = snapshot
3410 .chars_at(selection.start)
3411 .next()
3412 .map_or(true, |c| scope.should_autoclose_before(c));
3413
3414 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3415 && bracket_pair.start.len() == 1
3416 {
3417 let target = bracket_pair.start.chars().next().unwrap();
3418 let current_line_count = snapshot
3419 .reversed_chars_at(selection.start)
3420 .take_while(|&c| c != '\n')
3421 .filter(|&c| c == target)
3422 .count();
3423 current_line_count % 2 == 1
3424 } else {
3425 false
3426 };
3427
3428 if autoclose
3429 && bracket_pair.close
3430 && following_text_allows_autoclose
3431 && !is_closing_quote
3432 {
3433 let anchor = snapshot.anchor_before(selection.end);
3434 new_selections.push((selection.map(|_| anchor), text.len()));
3435 new_autoclose_regions.push((
3436 anchor,
3437 text.len(),
3438 selection.id,
3439 bracket_pair.clone(),
3440 ));
3441 edits.push((
3442 selection.range(),
3443 format!("{}{}", text, bracket_pair.end).into(),
3444 ));
3445 bracket_inserted = true;
3446 continue;
3447 }
3448 }
3449
3450 if let Some(region) = autoclose_region {
3451 // If the selection is followed by an auto-inserted closing bracket,
3452 // then don't insert that closing bracket again; just move the selection
3453 // past the closing bracket.
3454 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3455 && text.as_ref() == region.pair.end.as_str();
3456 if should_skip {
3457 let anchor = snapshot.anchor_after(selection.end);
3458 new_selections
3459 .push((selection.map(|_| anchor), region.pair.end.len()));
3460 continue;
3461 }
3462 }
3463
3464 let always_treat_brackets_as_autoclosed = snapshot
3465 .settings_at(selection.start, cx)
3466 .always_treat_brackets_as_autoclosed;
3467 if always_treat_brackets_as_autoclosed
3468 && is_bracket_pair_end
3469 && snapshot.contains_str_at(selection.end, text.as_ref())
3470 {
3471 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3472 // and the inserted text is a closing bracket and the selection is followed
3473 // by the closing bracket then move the selection past the closing bracket.
3474 let anchor = snapshot.anchor_after(selection.end);
3475 new_selections.push((selection.map(|_| anchor), text.len()));
3476 continue;
3477 }
3478 }
3479 // If an opening bracket is 1 character long and is typed while
3480 // text is selected, then surround that text with the bracket pair.
3481 else if auto_surround
3482 && bracket_pair.surround
3483 && is_bracket_pair_start
3484 && bracket_pair.start.chars().count() == 1
3485 {
3486 edits.push((selection.start..selection.start, text.clone()));
3487 edits.push((
3488 selection.end..selection.end,
3489 bracket_pair.end.as_str().into(),
3490 ));
3491 bracket_inserted = true;
3492 new_selections.push((
3493 Selection {
3494 id: selection.id,
3495 start: snapshot.anchor_after(selection.start),
3496 end: snapshot.anchor_before(selection.end),
3497 reversed: selection.reversed,
3498 goal: selection.goal,
3499 },
3500 0,
3501 ));
3502 continue;
3503 }
3504 }
3505 }
3506
3507 if self.auto_replace_emoji_shortcode
3508 && selection.is_empty()
3509 && text.as_ref().ends_with(':')
3510 {
3511 if let Some(possible_emoji_short_code) =
3512 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3513 {
3514 if !possible_emoji_short_code.is_empty() {
3515 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3516 let emoji_shortcode_start = Point::new(
3517 selection.start.row,
3518 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3519 );
3520
3521 // Remove shortcode from buffer
3522 edits.push((
3523 emoji_shortcode_start..selection.start,
3524 "".to_string().into(),
3525 ));
3526 new_selections.push((
3527 Selection {
3528 id: selection.id,
3529 start: snapshot.anchor_after(emoji_shortcode_start),
3530 end: snapshot.anchor_before(selection.start),
3531 reversed: selection.reversed,
3532 goal: selection.goal,
3533 },
3534 0,
3535 ));
3536
3537 // Insert emoji
3538 let selection_start_anchor = snapshot.anchor_after(selection.start);
3539 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3540 edits.push((selection.start..selection.end, emoji.to_string().into()));
3541
3542 continue;
3543 }
3544 }
3545 }
3546 }
3547
3548 // If not handling any auto-close operation, then just replace the selected
3549 // text with the given input and move the selection to the end of the
3550 // newly inserted text.
3551 let anchor = snapshot.anchor_after(selection.end);
3552 if !self.linked_edit_ranges.is_empty() {
3553 let start_anchor = snapshot.anchor_before(selection.start);
3554
3555 let is_word_char = text.chars().next().map_or(true, |char| {
3556 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3557 classifier.is_word(char)
3558 });
3559
3560 if is_word_char {
3561 if let Some(ranges) = self
3562 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3563 {
3564 for (buffer, edits) in ranges {
3565 linked_edits
3566 .entry(buffer.clone())
3567 .or_default()
3568 .extend(edits.into_iter().map(|range| (range, text.clone())));
3569 }
3570 }
3571 }
3572 }
3573
3574 new_selections.push((selection.map(|_| anchor), 0));
3575 edits.push((selection.start..selection.end, text.clone()));
3576 }
3577
3578 drop(snapshot);
3579
3580 self.transact(cx, |this, cx| {
3581 this.buffer.update(cx, |buffer, cx| {
3582 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3583 });
3584 for (buffer, edits) in linked_edits {
3585 buffer.update(cx, |buffer, cx| {
3586 let snapshot = buffer.snapshot();
3587 let edits = edits
3588 .into_iter()
3589 .map(|(range, text)| {
3590 use text::ToPoint as TP;
3591 let end_point = TP::to_point(&range.end, &snapshot);
3592 let start_point = TP::to_point(&range.start, &snapshot);
3593 (start_point..end_point, text)
3594 })
3595 .sorted_by_key(|(range, _)| range.start)
3596 .collect::<Vec<_>>();
3597 buffer.edit(edits, None, cx);
3598 })
3599 }
3600 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3601 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3602 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3603 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3604 .zip(new_selection_deltas)
3605 .map(|(selection, delta)| Selection {
3606 id: selection.id,
3607 start: selection.start + delta,
3608 end: selection.end + delta,
3609 reversed: selection.reversed,
3610 goal: SelectionGoal::None,
3611 })
3612 .collect::<Vec<_>>();
3613
3614 let mut i = 0;
3615 for (position, delta, selection_id, pair) in new_autoclose_regions {
3616 let position = position.to_offset(&map.buffer_snapshot) + delta;
3617 let start = map.buffer_snapshot.anchor_before(position);
3618 let end = map.buffer_snapshot.anchor_after(position);
3619 while let Some(existing_state) = this.autoclose_regions.get(i) {
3620 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3621 Ordering::Less => i += 1,
3622 Ordering::Greater => break,
3623 Ordering::Equal => {
3624 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3625 Ordering::Less => i += 1,
3626 Ordering::Equal => break,
3627 Ordering::Greater => break,
3628 }
3629 }
3630 }
3631 }
3632 this.autoclose_regions.insert(
3633 i,
3634 AutocloseRegion {
3635 selection_id,
3636 range: start..end,
3637 pair,
3638 },
3639 );
3640 }
3641
3642 let had_active_inline_completion = this.has_active_inline_completion();
3643 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3644 s.select(new_selections)
3645 });
3646
3647 if !bracket_inserted {
3648 if let Some(on_type_format_task) =
3649 this.trigger_on_type_formatting(text.to_string(), cx)
3650 {
3651 on_type_format_task.detach_and_log_err(cx);
3652 }
3653 }
3654
3655 let editor_settings = EditorSettings::get_global(cx);
3656 if bracket_inserted
3657 && (editor_settings.auto_signature_help
3658 || editor_settings.show_signature_help_after_edits)
3659 {
3660 this.show_signature_help(&ShowSignatureHelp, cx);
3661 }
3662
3663 let trigger_in_words = !had_active_inline_completion;
3664 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3665 linked_editing_ranges::refresh_linked_ranges(this, cx);
3666 this.refresh_inline_completion(true, false, cx);
3667 });
3668 }
3669
3670 fn find_possible_emoji_shortcode_at_position(
3671 snapshot: &MultiBufferSnapshot,
3672 position: Point,
3673 ) -> Option<String> {
3674 let mut chars = Vec::new();
3675 let mut found_colon = false;
3676 for char in snapshot.reversed_chars_at(position).take(100) {
3677 // Found a possible emoji shortcode in the middle of the buffer
3678 if found_colon {
3679 if char.is_whitespace() {
3680 chars.reverse();
3681 return Some(chars.iter().collect());
3682 }
3683 // If the previous character is not a whitespace, we are in the middle of a word
3684 // and we only want to complete the shortcode if the word is made up of other emojis
3685 let mut containing_word = String::new();
3686 for ch in snapshot
3687 .reversed_chars_at(position)
3688 .skip(chars.len() + 1)
3689 .take(100)
3690 {
3691 if ch.is_whitespace() {
3692 break;
3693 }
3694 containing_word.push(ch);
3695 }
3696 let containing_word = containing_word.chars().rev().collect::<String>();
3697 if util::word_consists_of_emojis(containing_word.as_str()) {
3698 chars.reverse();
3699 return Some(chars.iter().collect());
3700 }
3701 }
3702
3703 if char.is_whitespace() || !char.is_ascii() {
3704 return None;
3705 }
3706 if char == ':' {
3707 found_colon = true;
3708 } else {
3709 chars.push(char);
3710 }
3711 }
3712 // Found a possible emoji shortcode at the beginning of the buffer
3713 chars.reverse();
3714 Some(chars.iter().collect())
3715 }
3716
3717 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3718 self.transact(cx, |this, cx| {
3719 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3720 let selections = this.selections.all::<usize>(cx);
3721 let multi_buffer = this.buffer.read(cx);
3722 let buffer = multi_buffer.snapshot(cx);
3723 selections
3724 .iter()
3725 .map(|selection| {
3726 let start_point = selection.start.to_point(&buffer);
3727 let mut indent =
3728 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3729 indent.len = cmp::min(indent.len, start_point.column);
3730 let start = selection.start;
3731 let end = selection.end;
3732 let selection_is_empty = start == end;
3733 let language_scope = buffer.language_scope_at(start);
3734 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3735 &language_scope
3736 {
3737 let leading_whitespace_len = buffer
3738 .reversed_chars_at(start)
3739 .take_while(|c| c.is_whitespace() && *c != '\n')
3740 .map(|c| c.len_utf8())
3741 .sum::<usize>();
3742
3743 let trailing_whitespace_len = buffer
3744 .chars_at(end)
3745 .take_while(|c| c.is_whitespace() && *c != '\n')
3746 .map(|c| c.len_utf8())
3747 .sum::<usize>();
3748
3749 let insert_extra_newline =
3750 language.brackets().any(|(pair, enabled)| {
3751 let pair_start = pair.start.trim_end();
3752 let pair_end = pair.end.trim_start();
3753
3754 enabled
3755 && pair.newline
3756 && buffer.contains_str_at(
3757 end + trailing_whitespace_len,
3758 pair_end,
3759 )
3760 && buffer.contains_str_at(
3761 (start - leading_whitespace_len)
3762 .saturating_sub(pair_start.len()),
3763 pair_start,
3764 )
3765 });
3766
3767 // Comment extension on newline is allowed only for cursor selections
3768 let comment_delimiter = maybe!({
3769 if !selection_is_empty {
3770 return None;
3771 }
3772
3773 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3774 return None;
3775 }
3776
3777 let delimiters = language.line_comment_prefixes();
3778 let max_len_of_delimiter =
3779 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3780 let (snapshot, range) =
3781 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3782
3783 let mut index_of_first_non_whitespace = 0;
3784 let comment_candidate = snapshot
3785 .chars_for_range(range)
3786 .skip_while(|c| {
3787 let should_skip = c.is_whitespace();
3788 if should_skip {
3789 index_of_first_non_whitespace += 1;
3790 }
3791 should_skip
3792 })
3793 .take(max_len_of_delimiter)
3794 .collect::<String>();
3795 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3796 comment_candidate.starts_with(comment_prefix.as_ref())
3797 })?;
3798 let cursor_is_placed_after_comment_marker =
3799 index_of_first_non_whitespace + comment_prefix.len()
3800 <= start_point.column as usize;
3801 if cursor_is_placed_after_comment_marker {
3802 Some(comment_prefix.clone())
3803 } else {
3804 None
3805 }
3806 });
3807 (comment_delimiter, insert_extra_newline)
3808 } else {
3809 (None, false)
3810 };
3811
3812 let capacity_for_delimiter = comment_delimiter
3813 .as_deref()
3814 .map(str::len)
3815 .unwrap_or_default();
3816 let mut new_text =
3817 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3818 new_text.push('\n');
3819 new_text.extend(indent.chars());
3820 if let Some(delimiter) = &comment_delimiter {
3821 new_text.push_str(delimiter);
3822 }
3823 if insert_extra_newline {
3824 new_text = new_text.repeat(2);
3825 }
3826
3827 let anchor = buffer.anchor_after(end);
3828 let new_selection = selection.map(|_| anchor);
3829 (
3830 (start..end, new_text),
3831 (insert_extra_newline, new_selection),
3832 )
3833 })
3834 .unzip()
3835 };
3836
3837 this.edit_with_autoindent(edits, cx);
3838 let buffer = this.buffer.read(cx).snapshot(cx);
3839 let new_selections = selection_fixup_info
3840 .into_iter()
3841 .map(|(extra_newline_inserted, new_selection)| {
3842 let mut cursor = new_selection.end.to_point(&buffer);
3843 if extra_newline_inserted {
3844 cursor.row -= 1;
3845 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3846 }
3847 new_selection.map(|_| cursor)
3848 })
3849 .collect();
3850
3851 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3852 this.refresh_inline_completion(true, false, cx);
3853 });
3854 }
3855
3856 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3857 let buffer = self.buffer.read(cx);
3858 let snapshot = buffer.snapshot(cx);
3859
3860 let mut edits = Vec::new();
3861 let mut rows = Vec::new();
3862
3863 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3864 let cursor = selection.head();
3865 let row = cursor.row;
3866
3867 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3868
3869 let newline = "\n".to_string();
3870 edits.push((start_of_line..start_of_line, newline));
3871
3872 rows.push(row + rows_inserted as u32);
3873 }
3874
3875 self.transact(cx, |editor, cx| {
3876 editor.edit(edits, cx);
3877
3878 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3879 let mut index = 0;
3880 s.move_cursors_with(|map, _, _| {
3881 let row = rows[index];
3882 index += 1;
3883
3884 let point = Point::new(row, 0);
3885 let boundary = map.next_line_boundary(point).1;
3886 let clipped = map.clip_point(boundary, Bias::Left);
3887
3888 (clipped, SelectionGoal::None)
3889 });
3890 });
3891
3892 let mut indent_edits = Vec::new();
3893 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3894 for row in rows {
3895 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3896 for (row, indent) in indents {
3897 if indent.len == 0 {
3898 continue;
3899 }
3900
3901 let text = match indent.kind {
3902 IndentKind::Space => " ".repeat(indent.len as usize),
3903 IndentKind::Tab => "\t".repeat(indent.len as usize),
3904 };
3905 let point = Point::new(row.0, 0);
3906 indent_edits.push((point..point, text));
3907 }
3908 }
3909 editor.edit(indent_edits, cx);
3910 });
3911 }
3912
3913 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3914 let buffer = self.buffer.read(cx);
3915 let snapshot = buffer.snapshot(cx);
3916
3917 let mut edits = Vec::new();
3918 let mut rows = Vec::new();
3919 let mut rows_inserted = 0;
3920
3921 for selection in self.selections.all_adjusted(cx) {
3922 let cursor = selection.head();
3923 let row = cursor.row;
3924
3925 let point = Point::new(row + 1, 0);
3926 let start_of_line = snapshot.clip_point(point, Bias::Left);
3927
3928 let newline = "\n".to_string();
3929 edits.push((start_of_line..start_of_line, newline));
3930
3931 rows_inserted += 1;
3932 rows.push(row + rows_inserted);
3933 }
3934
3935 self.transact(cx, |editor, cx| {
3936 editor.edit(edits, cx);
3937
3938 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3939 let mut index = 0;
3940 s.move_cursors_with(|map, _, _| {
3941 let row = rows[index];
3942 index += 1;
3943
3944 let point = Point::new(row, 0);
3945 let boundary = map.next_line_boundary(point).1;
3946 let clipped = map.clip_point(boundary, Bias::Left);
3947
3948 (clipped, SelectionGoal::None)
3949 });
3950 });
3951
3952 let mut indent_edits = Vec::new();
3953 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3954 for row in rows {
3955 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3956 for (row, indent) in indents {
3957 if indent.len == 0 {
3958 continue;
3959 }
3960
3961 let text = match indent.kind {
3962 IndentKind::Space => " ".repeat(indent.len as usize),
3963 IndentKind::Tab => "\t".repeat(indent.len as usize),
3964 };
3965 let point = Point::new(row.0, 0);
3966 indent_edits.push((point..point, text));
3967 }
3968 }
3969 editor.edit(indent_edits, cx);
3970 });
3971 }
3972
3973 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3974 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3975 original_indent_columns: Vec::new(),
3976 });
3977 self.insert_with_autoindent_mode(text, autoindent, cx);
3978 }
3979
3980 fn insert_with_autoindent_mode(
3981 &mut self,
3982 text: &str,
3983 autoindent_mode: Option<AutoindentMode>,
3984 cx: &mut ViewContext<Self>,
3985 ) {
3986 if self.read_only(cx) {
3987 return;
3988 }
3989
3990 let text: Arc<str> = text.into();
3991 self.transact(cx, |this, cx| {
3992 let old_selections = this.selections.all_adjusted(cx);
3993 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3994 let anchors = {
3995 let snapshot = buffer.read(cx);
3996 old_selections
3997 .iter()
3998 .map(|s| {
3999 let anchor = snapshot.anchor_after(s.head());
4000 s.map(|_| anchor)
4001 })
4002 .collect::<Vec<_>>()
4003 };
4004 buffer.edit(
4005 old_selections
4006 .iter()
4007 .map(|s| (s.start..s.end, text.clone())),
4008 autoindent_mode,
4009 cx,
4010 );
4011 anchors
4012 });
4013
4014 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4015 s.select_anchors(selection_anchors);
4016 })
4017 });
4018 }
4019
4020 fn trigger_completion_on_input(
4021 &mut self,
4022 text: &str,
4023 trigger_in_words: bool,
4024 cx: &mut ViewContext<Self>,
4025 ) {
4026 if self.is_completion_trigger(text, trigger_in_words, cx) {
4027 self.show_completions(
4028 &ShowCompletions {
4029 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
4030 },
4031 cx,
4032 );
4033 } else {
4034 self.hide_context_menu(cx);
4035 }
4036 }
4037
4038 fn is_completion_trigger(
4039 &self,
4040 text: &str,
4041 trigger_in_words: bool,
4042 cx: &mut ViewContext<Self>,
4043 ) -> bool {
4044 let position = self.selections.newest_anchor().head();
4045 let multibuffer = self.buffer.read(cx);
4046 let Some(buffer) = position
4047 .buffer_id
4048 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
4049 else {
4050 return false;
4051 };
4052
4053 if let Some(completion_provider) = &self.completion_provider {
4054 completion_provider.is_completion_trigger(
4055 &buffer,
4056 position.text_anchor,
4057 text,
4058 trigger_in_words,
4059 cx,
4060 )
4061 } else {
4062 false
4063 }
4064 }
4065
4066 /// If any empty selections is touching the start of its innermost containing autoclose
4067 /// region, expand it to select the brackets.
4068 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4069 let selections = self.selections.all::<usize>(cx);
4070 let buffer = self.buffer.read(cx).read(cx);
4071 let new_selections = self
4072 .selections_with_autoclose_regions(selections, &buffer)
4073 .map(|(mut selection, region)| {
4074 if !selection.is_empty() {
4075 return selection;
4076 }
4077
4078 if let Some(region) = region {
4079 let mut range = region.range.to_offset(&buffer);
4080 if selection.start == range.start && range.start >= region.pair.start.len() {
4081 range.start -= region.pair.start.len();
4082 if buffer.contains_str_at(range.start, ®ion.pair.start)
4083 && buffer.contains_str_at(range.end, ®ion.pair.end)
4084 {
4085 range.end += region.pair.end.len();
4086 selection.start = range.start;
4087 selection.end = range.end;
4088
4089 return selection;
4090 }
4091 }
4092 }
4093
4094 let always_treat_brackets_as_autoclosed = buffer
4095 .settings_at(selection.start, cx)
4096 .always_treat_brackets_as_autoclosed;
4097
4098 if !always_treat_brackets_as_autoclosed {
4099 return selection;
4100 }
4101
4102 if let Some(scope) = buffer.language_scope_at(selection.start) {
4103 for (pair, enabled) in scope.brackets() {
4104 if !enabled || !pair.close {
4105 continue;
4106 }
4107
4108 if buffer.contains_str_at(selection.start, &pair.end) {
4109 let pair_start_len = pair.start.len();
4110 if buffer.contains_str_at(
4111 selection.start.saturating_sub(pair_start_len),
4112 &pair.start,
4113 ) {
4114 selection.start -= pair_start_len;
4115 selection.end += pair.end.len();
4116
4117 return selection;
4118 }
4119 }
4120 }
4121 }
4122
4123 selection
4124 })
4125 .collect();
4126
4127 drop(buffer);
4128 self.change_selections(None, cx, |selections| selections.select(new_selections));
4129 }
4130
4131 /// Iterate the given selections, and for each one, find the smallest surrounding
4132 /// autoclose region. This uses the ordering of the selections and the autoclose
4133 /// regions to avoid repeated comparisons.
4134 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4135 &'a self,
4136 selections: impl IntoIterator<Item = Selection<D>>,
4137 buffer: &'a MultiBufferSnapshot,
4138 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4139 let mut i = 0;
4140 let mut regions = self.autoclose_regions.as_slice();
4141 selections.into_iter().map(move |selection| {
4142 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4143
4144 let mut enclosing = None;
4145 while let Some(pair_state) = regions.get(i) {
4146 if pair_state.range.end.to_offset(buffer) < range.start {
4147 regions = ®ions[i + 1..];
4148 i = 0;
4149 } else if pair_state.range.start.to_offset(buffer) > range.end {
4150 break;
4151 } else {
4152 if pair_state.selection_id == selection.id {
4153 enclosing = Some(pair_state);
4154 }
4155 i += 1;
4156 }
4157 }
4158
4159 (selection, enclosing)
4160 })
4161 }
4162
4163 /// Remove any autoclose regions that no longer contain their selection.
4164 fn invalidate_autoclose_regions(
4165 &mut self,
4166 mut selections: &[Selection<Anchor>],
4167 buffer: &MultiBufferSnapshot,
4168 ) {
4169 self.autoclose_regions.retain(|state| {
4170 let mut i = 0;
4171 while let Some(selection) = selections.get(i) {
4172 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4173 selections = &selections[1..];
4174 continue;
4175 }
4176 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4177 break;
4178 }
4179 if selection.id == state.selection_id {
4180 return true;
4181 } else {
4182 i += 1;
4183 }
4184 }
4185 false
4186 });
4187 }
4188
4189 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4190 let offset = position.to_offset(buffer);
4191 let (word_range, kind) = buffer.surrounding_word(offset, true);
4192 if offset > word_range.start && kind == Some(CharKind::Word) {
4193 Some(
4194 buffer
4195 .text_for_range(word_range.start..offset)
4196 .collect::<String>(),
4197 )
4198 } else {
4199 None
4200 }
4201 }
4202
4203 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4204 self.refresh_inlay_hints(
4205 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4206 cx,
4207 );
4208 }
4209
4210 pub fn inlay_hints_enabled(&self) -> bool {
4211 self.inlay_hint_cache.enabled
4212 }
4213
4214 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4215 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4216 return;
4217 }
4218
4219 let reason_description = reason.description();
4220 let ignore_debounce = matches!(
4221 reason,
4222 InlayHintRefreshReason::SettingsChange(_)
4223 | InlayHintRefreshReason::Toggle(_)
4224 | InlayHintRefreshReason::ExcerptsRemoved(_)
4225 );
4226 let (invalidate_cache, required_languages) = match reason {
4227 InlayHintRefreshReason::Toggle(enabled) => {
4228 self.inlay_hint_cache.enabled = enabled;
4229 if enabled {
4230 (InvalidationStrategy::RefreshRequested, None)
4231 } else {
4232 self.inlay_hint_cache.clear();
4233 self.splice_inlays(
4234 self.visible_inlay_hints(cx)
4235 .iter()
4236 .map(|inlay| inlay.id)
4237 .collect(),
4238 Vec::new(),
4239 cx,
4240 );
4241 return;
4242 }
4243 }
4244 InlayHintRefreshReason::SettingsChange(new_settings) => {
4245 match self.inlay_hint_cache.update_settings(
4246 &self.buffer,
4247 new_settings,
4248 self.visible_inlay_hints(cx),
4249 cx,
4250 ) {
4251 ControlFlow::Break(Some(InlaySplice {
4252 to_remove,
4253 to_insert,
4254 })) => {
4255 self.splice_inlays(to_remove, to_insert, cx);
4256 return;
4257 }
4258 ControlFlow::Break(None) => return,
4259 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4260 }
4261 }
4262 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4263 if let Some(InlaySplice {
4264 to_remove,
4265 to_insert,
4266 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4267 {
4268 self.splice_inlays(to_remove, to_insert, cx);
4269 }
4270 return;
4271 }
4272 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4273 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4274 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4275 }
4276 InlayHintRefreshReason::RefreshRequested => {
4277 (InvalidationStrategy::RefreshRequested, None)
4278 }
4279 };
4280
4281 if let Some(InlaySplice {
4282 to_remove,
4283 to_insert,
4284 }) = self.inlay_hint_cache.spawn_hint_refresh(
4285 reason_description,
4286 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4287 invalidate_cache,
4288 ignore_debounce,
4289 cx,
4290 ) {
4291 self.splice_inlays(to_remove, to_insert, cx);
4292 }
4293 }
4294
4295 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4296 self.display_map
4297 .read(cx)
4298 .current_inlays()
4299 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4300 .cloned()
4301 .collect()
4302 }
4303
4304 pub fn excerpts_for_inlay_hints_query(
4305 &self,
4306 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4307 cx: &mut ViewContext<Editor>,
4308 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4309 let Some(project) = self.project.as_ref() else {
4310 return HashMap::default();
4311 };
4312 let project = project.read(cx);
4313 let multi_buffer = self.buffer().read(cx);
4314 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4315 let multi_buffer_visible_start = self
4316 .scroll_manager
4317 .anchor()
4318 .anchor
4319 .to_point(&multi_buffer_snapshot);
4320 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4321 multi_buffer_visible_start
4322 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4323 Bias::Left,
4324 );
4325 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4326 multi_buffer
4327 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4328 .into_iter()
4329 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4330 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4331 let buffer = buffer_handle.read(cx);
4332 let buffer_file = project::File::from_dyn(buffer.file())?;
4333 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4334 let worktree_entry = buffer_worktree
4335 .read(cx)
4336 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4337 if worktree_entry.is_ignored {
4338 return None;
4339 }
4340
4341 let language = buffer.language()?;
4342 if let Some(restrict_to_languages) = restrict_to_languages {
4343 if !restrict_to_languages.contains(language) {
4344 return None;
4345 }
4346 }
4347 Some((
4348 excerpt_id,
4349 (
4350 buffer_handle,
4351 buffer.version().clone(),
4352 excerpt_visible_range,
4353 ),
4354 ))
4355 })
4356 .collect()
4357 }
4358
4359 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4360 TextLayoutDetails {
4361 text_system: cx.text_system().clone(),
4362 editor_style: self.style.clone().unwrap(),
4363 rem_size: cx.rem_size(),
4364 scroll_anchor: self.scroll_manager.anchor(),
4365 visible_rows: self.visible_line_count(),
4366 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4367 }
4368 }
4369
4370 fn splice_inlays(
4371 &self,
4372 to_remove: Vec<InlayId>,
4373 to_insert: Vec<Inlay>,
4374 cx: &mut ViewContext<Self>,
4375 ) {
4376 self.display_map.update(cx, |display_map, cx| {
4377 display_map.splice_inlays(to_remove, to_insert, cx)
4378 });
4379 cx.notify();
4380 }
4381
4382 fn trigger_on_type_formatting(
4383 &self,
4384 input: String,
4385 cx: &mut ViewContext<Self>,
4386 ) -> Option<Task<Result<()>>> {
4387 if input.len() != 1 {
4388 return None;
4389 }
4390
4391 let project = self.project.as_ref()?;
4392 let position = self.selections.newest_anchor().head();
4393 let (buffer, buffer_position) = self
4394 .buffer
4395 .read(cx)
4396 .text_anchor_for_position(position, cx)?;
4397
4398 let settings = language_settings::language_settings(
4399 buffer
4400 .read(cx)
4401 .language_at(buffer_position)
4402 .map(|l| l.name()),
4403 buffer.read(cx).file(),
4404 cx,
4405 );
4406 if !settings.use_on_type_format {
4407 return None;
4408 }
4409
4410 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4411 // hence we do LSP request & edit on host side only — add formats to host's history.
4412 let push_to_lsp_host_history = true;
4413 // If this is not the host, append its history with new edits.
4414 let push_to_client_history = project.read(cx).is_via_collab();
4415
4416 let on_type_formatting = project.update(cx, |project, cx| {
4417 project.on_type_format(
4418 buffer.clone(),
4419 buffer_position,
4420 input,
4421 push_to_lsp_host_history,
4422 cx,
4423 )
4424 });
4425 Some(cx.spawn(|editor, mut cx| async move {
4426 if let Some(transaction) = on_type_formatting.await? {
4427 if push_to_client_history {
4428 buffer
4429 .update(&mut cx, |buffer, _| {
4430 buffer.push_transaction(transaction, Instant::now());
4431 })
4432 .ok();
4433 }
4434 editor.update(&mut cx, |editor, cx| {
4435 editor.refresh_document_highlights(cx);
4436 })?;
4437 }
4438 Ok(())
4439 }))
4440 }
4441
4442 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4443 if self.pending_rename.is_some() {
4444 return;
4445 }
4446
4447 let Some(provider) = self.completion_provider.as_ref() else {
4448 return;
4449 };
4450
4451 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
4452 return;
4453 }
4454
4455 let position = self.selections.newest_anchor().head();
4456 let (buffer, buffer_position) =
4457 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4458 output
4459 } else {
4460 return;
4461 };
4462
4463 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4464 let (is_followup_invoke, aside_was_displayed) = match self.context_menu.read().deref() {
4465 Some(ContextMenu::Completions(menu)) => (true, menu.aside_was_displayed.get()),
4466 _ => (false, false),
4467 };
4468 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4469 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4470 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4471 CompletionTriggerKind::TRIGGER_CHARACTER
4472 }
4473
4474 _ => CompletionTriggerKind::INVOKED,
4475 };
4476 let completion_context = CompletionContext {
4477 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4478 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4479 Some(String::from(trigger))
4480 } else {
4481 None
4482 }
4483 }),
4484 trigger_kind,
4485 };
4486 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4487 let sort_completions = provider.sort_completions();
4488
4489 let id = post_inc(&mut self.next_completion_id);
4490 let task = cx.spawn(|editor, mut cx| {
4491 async move {
4492 editor.update(&mut cx, |this, _| {
4493 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4494 })?;
4495 let completions = completions.await.log_err();
4496 let menu = if let Some(completions) = completions {
4497 let mut menu = CompletionsMenu::new(
4498 id,
4499 sort_completions,
4500 position,
4501 buffer.clone(),
4502 completions.into(),
4503 aside_was_displayed,
4504 );
4505 menu.filter(query.as_deref(), cx.background_executor().clone())
4506 .await;
4507
4508 if menu.matches.is_empty() {
4509 None
4510 } else {
4511 Some(menu)
4512 }
4513 } else {
4514 None
4515 };
4516
4517 editor.update(&mut cx, |editor, cx| {
4518 let mut context_menu = editor.context_menu.write();
4519 match context_menu.as_ref() {
4520 None => {}
4521
4522 Some(ContextMenu::Completions(prev_menu)) => {
4523 if prev_menu.id > id {
4524 return;
4525 }
4526 }
4527
4528 _ => return,
4529 }
4530
4531 if editor.focus_handle.is_focused(cx) && menu.is_some() {
4532 let mut menu = menu.unwrap();
4533 menu.resolve_selected_completion(editor.completion_provider.as_deref(), cx);
4534 *context_menu = Some(ContextMenu::Completions(menu));
4535 drop(context_menu);
4536 editor.discard_inline_completion(false, cx);
4537 cx.notify();
4538 } else if editor.completion_tasks.len() <= 1 {
4539 // If there are no more completion tasks and the last menu was
4540 // empty, we should hide it. If it was already hidden, we should
4541 // also show the copilot completion when available.
4542 drop(context_menu);
4543 if editor.hide_context_menu(cx).is_none() {
4544 editor.update_visible_inline_completion(cx);
4545 }
4546 }
4547 })?;
4548
4549 Ok::<_, anyhow::Error>(())
4550 }
4551 .log_err()
4552 });
4553
4554 self.completion_tasks.push((id, task));
4555 }
4556
4557 pub fn confirm_completion(
4558 &mut self,
4559 action: &ConfirmCompletion,
4560 cx: &mut ViewContext<Self>,
4561 ) -> Option<Task<Result<()>>> {
4562 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4563 }
4564
4565 pub fn compose_completion(
4566 &mut self,
4567 action: &ComposeCompletion,
4568 cx: &mut ViewContext<Self>,
4569 ) -> Option<Task<Result<()>>> {
4570 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4571 }
4572
4573 fn do_completion(
4574 &mut self,
4575 item_ix: Option<usize>,
4576 intent: CompletionIntent,
4577 cx: &mut ViewContext<Editor>,
4578 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4579 use language::ToOffset as _;
4580
4581 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4582 menu
4583 } else {
4584 return None;
4585 };
4586
4587 let mat = completions_menu
4588 .matches
4589 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4590 let buffer_handle = completions_menu.buffer;
4591 let completions = completions_menu.completions.read();
4592 let completion = completions.get(mat.candidate_id)?;
4593 cx.stop_propagation();
4594
4595 let snippet;
4596 let text;
4597
4598 if completion.is_snippet() {
4599 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4600 text = snippet.as_ref().unwrap().text.clone();
4601 } else {
4602 snippet = None;
4603 text = completion.new_text.clone();
4604 };
4605 let selections = self.selections.all::<usize>(cx);
4606 let buffer = buffer_handle.read(cx);
4607 let old_range = completion.old_range.to_offset(buffer);
4608 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4609
4610 let newest_selection = self.selections.newest_anchor();
4611 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4612 return None;
4613 }
4614
4615 let lookbehind = newest_selection
4616 .start
4617 .text_anchor
4618 .to_offset(buffer)
4619 .saturating_sub(old_range.start);
4620 let lookahead = old_range
4621 .end
4622 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4623 let mut common_prefix_len = old_text
4624 .bytes()
4625 .zip(text.bytes())
4626 .take_while(|(a, b)| a == b)
4627 .count();
4628
4629 let snapshot = self.buffer.read(cx).snapshot(cx);
4630 let mut range_to_replace: Option<Range<isize>> = None;
4631 let mut ranges = Vec::new();
4632 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4633 for selection in &selections {
4634 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4635 let start = selection.start.saturating_sub(lookbehind);
4636 let end = selection.end + lookahead;
4637 if selection.id == newest_selection.id {
4638 range_to_replace = Some(
4639 ((start + common_prefix_len) as isize - selection.start as isize)
4640 ..(end as isize - selection.start as isize),
4641 );
4642 }
4643 ranges.push(start + common_prefix_len..end);
4644 } else {
4645 common_prefix_len = 0;
4646 ranges.clear();
4647 ranges.extend(selections.iter().map(|s| {
4648 if s.id == newest_selection.id {
4649 range_to_replace = Some(
4650 old_range.start.to_offset_utf16(&snapshot).0 as isize
4651 - selection.start as isize
4652 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4653 - selection.start as isize,
4654 );
4655 old_range.clone()
4656 } else {
4657 s.start..s.end
4658 }
4659 }));
4660 break;
4661 }
4662 if !self.linked_edit_ranges.is_empty() {
4663 let start_anchor = snapshot.anchor_before(selection.head());
4664 let end_anchor = snapshot.anchor_after(selection.tail());
4665 if let Some(ranges) = self
4666 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4667 {
4668 for (buffer, edits) in ranges {
4669 linked_edits.entry(buffer.clone()).or_default().extend(
4670 edits
4671 .into_iter()
4672 .map(|range| (range, text[common_prefix_len..].to_owned())),
4673 );
4674 }
4675 }
4676 }
4677 }
4678 let text = &text[common_prefix_len..];
4679
4680 cx.emit(EditorEvent::InputHandled {
4681 utf16_range_to_replace: range_to_replace,
4682 text: text.into(),
4683 });
4684
4685 self.transact(cx, |this, cx| {
4686 if let Some(mut snippet) = snippet {
4687 snippet.text = text.to_string();
4688 for tabstop in snippet
4689 .tabstops
4690 .iter_mut()
4691 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4692 {
4693 tabstop.start -= common_prefix_len as isize;
4694 tabstop.end -= common_prefix_len as isize;
4695 }
4696
4697 this.insert_snippet(&ranges, snippet, cx).log_err();
4698 } else {
4699 this.buffer.update(cx, |buffer, cx| {
4700 buffer.edit(
4701 ranges.iter().map(|range| (range.clone(), text)),
4702 this.autoindent_mode.clone(),
4703 cx,
4704 );
4705 });
4706 }
4707 for (buffer, edits) in linked_edits {
4708 buffer.update(cx, |buffer, cx| {
4709 let snapshot = buffer.snapshot();
4710 let edits = edits
4711 .into_iter()
4712 .map(|(range, text)| {
4713 use text::ToPoint as TP;
4714 let end_point = TP::to_point(&range.end, &snapshot);
4715 let start_point = TP::to_point(&range.start, &snapshot);
4716 (start_point..end_point, text)
4717 })
4718 .sorted_by_key(|(range, _)| range.start)
4719 .collect::<Vec<_>>();
4720 buffer.edit(edits, None, cx);
4721 })
4722 }
4723
4724 this.refresh_inline_completion(true, false, cx);
4725 });
4726
4727 let show_new_completions_on_confirm = completion
4728 .confirm
4729 .as_ref()
4730 .map_or(false, |confirm| confirm(intent, cx));
4731 if show_new_completions_on_confirm {
4732 self.show_completions(&ShowCompletions { trigger: None }, cx);
4733 }
4734
4735 let provider = self.completion_provider.as_ref()?;
4736 let apply_edits = provider.apply_additional_edits_for_completion(
4737 buffer_handle,
4738 completion.clone(),
4739 true,
4740 cx,
4741 );
4742
4743 let editor_settings = EditorSettings::get_global(cx);
4744 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4745 // After the code completion is finished, users often want to know what signatures are needed.
4746 // so we should automatically call signature_help
4747 self.show_signature_help(&ShowSignatureHelp, cx);
4748 }
4749
4750 Some(cx.foreground_executor().spawn(async move {
4751 apply_edits.await?;
4752 Ok(())
4753 }))
4754 }
4755
4756 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4757 let mut context_menu = self.context_menu.write();
4758 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4759 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4760 // Toggle if we're selecting the same one
4761 *context_menu = None;
4762 cx.notify();
4763 return;
4764 } else {
4765 // Otherwise, clear it and start a new one
4766 *context_menu = None;
4767 cx.notify();
4768 }
4769 }
4770 drop(context_menu);
4771 let snapshot = self.snapshot(cx);
4772 let deployed_from_indicator = action.deployed_from_indicator;
4773 let mut task = self.code_actions_task.take();
4774 let action = action.clone();
4775 cx.spawn(|editor, mut cx| async move {
4776 while let Some(prev_task) = task {
4777 prev_task.await.log_err();
4778 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4779 }
4780
4781 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4782 if editor.focus_handle.is_focused(cx) {
4783 let multibuffer_point = action
4784 .deployed_from_indicator
4785 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4786 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4787 let (buffer, buffer_row) = snapshot
4788 .buffer_snapshot
4789 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4790 .and_then(|(buffer_snapshot, range)| {
4791 editor
4792 .buffer
4793 .read(cx)
4794 .buffer(buffer_snapshot.remote_id())
4795 .map(|buffer| (buffer, range.start.row))
4796 })?;
4797 let (_, code_actions) = editor
4798 .available_code_actions
4799 .clone()
4800 .and_then(|(location, code_actions)| {
4801 let snapshot = location.buffer.read(cx).snapshot();
4802 let point_range = location.range.to_point(&snapshot);
4803 let point_range = point_range.start.row..=point_range.end.row;
4804 if point_range.contains(&buffer_row) {
4805 Some((location, code_actions))
4806 } else {
4807 None
4808 }
4809 })
4810 .unzip();
4811 let buffer_id = buffer.read(cx).remote_id();
4812 let tasks = editor
4813 .tasks
4814 .get(&(buffer_id, buffer_row))
4815 .map(|t| Arc::new(t.to_owned()));
4816 if tasks.is_none() && code_actions.is_none() {
4817 return None;
4818 }
4819
4820 editor.completion_tasks.clear();
4821 editor.discard_inline_completion(false, cx);
4822 let task_context =
4823 tasks
4824 .as_ref()
4825 .zip(editor.project.clone())
4826 .map(|(tasks, project)| {
4827 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4828 });
4829
4830 Some(cx.spawn(|editor, mut cx| async move {
4831 let task_context = match task_context {
4832 Some(task_context) => task_context.await,
4833 None => None,
4834 };
4835 let resolved_tasks =
4836 tasks.zip(task_context).map(|(tasks, task_context)| {
4837 Arc::new(ResolvedTasks {
4838 templates: tasks.resolve(&task_context).collect(),
4839 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4840 multibuffer_point.row,
4841 tasks.column,
4842 )),
4843 })
4844 });
4845 let spawn_straight_away = resolved_tasks
4846 .as_ref()
4847 .map_or(false, |tasks| tasks.templates.len() == 1)
4848 && code_actions
4849 .as_ref()
4850 .map_or(true, |actions| actions.is_empty());
4851 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4852 *editor.context_menu.write() =
4853 Some(ContextMenu::CodeActions(CodeActionsMenu {
4854 buffer,
4855 actions: CodeActionContents {
4856 tasks: resolved_tasks,
4857 actions: code_actions,
4858 },
4859 selected_item: Default::default(),
4860 scroll_handle: UniformListScrollHandle::default(),
4861 deployed_from_indicator,
4862 }));
4863 if spawn_straight_away {
4864 if let Some(task) = editor.confirm_code_action(
4865 &ConfirmCodeAction { item_ix: Some(0) },
4866 cx,
4867 ) {
4868 cx.notify();
4869 return task;
4870 }
4871 }
4872 cx.notify();
4873 Task::ready(Ok(()))
4874 }) {
4875 task.await
4876 } else {
4877 Ok(())
4878 }
4879 }))
4880 } else {
4881 Some(Task::ready(Ok(())))
4882 }
4883 })?;
4884 if let Some(task) = spawned_test_task {
4885 task.await?;
4886 }
4887
4888 Ok::<_, anyhow::Error>(())
4889 })
4890 .detach_and_log_err(cx);
4891 }
4892
4893 pub fn confirm_code_action(
4894 &mut self,
4895 action: &ConfirmCodeAction,
4896 cx: &mut ViewContext<Self>,
4897 ) -> Option<Task<Result<()>>> {
4898 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4899 menu
4900 } else {
4901 return None;
4902 };
4903 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4904 let action = actions_menu.actions.get(action_ix)?;
4905 let title = action.label();
4906 let buffer = actions_menu.buffer;
4907 let workspace = self.workspace()?;
4908
4909 match action {
4910 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4911 workspace.update(cx, |workspace, cx| {
4912 workspace::tasks::schedule_resolved_task(
4913 workspace,
4914 task_source_kind,
4915 resolved_task,
4916 false,
4917 cx,
4918 );
4919
4920 Some(Task::ready(Ok(())))
4921 })
4922 }
4923 CodeActionsItem::CodeAction {
4924 excerpt_id,
4925 action,
4926 provider,
4927 } => {
4928 let apply_code_action =
4929 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4930 let workspace = workspace.downgrade();
4931 Some(cx.spawn(|editor, cx| async move {
4932 let project_transaction = apply_code_action.await?;
4933 Self::open_project_transaction(
4934 &editor,
4935 workspace,
4936 project_transaction,
4937 title,
4938 cx,
4939 )
4940 .await
4941 }))
4942 }
4943 }
4944 }
4945
4946 pub async fn open_project_transaction(
4947 this: &WeakView<Editor>,
4948 workspace: WeakView<Workspace>,
4949 transaction: ProjectTransaction,
4950 title: String,
4951 mut cx: AsyncWindowContext,
4952 ) -> Result<()> {
4953 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4954 cx.update(|cx| {
4955 entries.sort_unstable_by_key(|(buffer, _)| {
4956 buffer.read(cx).file().map(|f| f.path().clone())
4957 });
4958 })?;
4959
4960 // If the project transaction's edits are all contained within this editor, then
4961 // avoid opening a new editor to display them.
4962
4963 if let Some((buffer, transaction)) = entries.first() {
4964 if entries.len() == 1 {
4965 let excerpt = this.update(&mut cx, |editor, cx| {
4966 editor
4967 .buffer()
4968 .read(cx)
4969 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4970 })?;
4971 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4972 if excerpted_buffer == *buffer {
4973 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4974 let excerpt_range = excerpt_range.to_offset(buffer);
4975 buffer
4976 .edited_ranges_for_transaction::<usize>(transaction)
4977 .all(|range| {
4978 excerpt_range.start <= range.start
4979 && excerpt_range.end >= range.end
4980 })
4981 })?;
4982
4983 if all_edits_within_excerpt {
4984 return Ok(());
4985 }
4986 }
4987 }
4988 }
4989 } else {
4990 return Ok(());
4991 }
4992
4993 let mut ranges_to_highlight = Vec::new();
4994 let excerpt_buffer = cx.new_model(|cx| {
4995 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4996 for (buffer_handle, transaction) in &entries {
4997 let buffer = buffer_handle.read(cx);
4998 ranges_to_highlight.extend(
4999 multibuffer.push_excerpts_with_context_lines(
5000 buffer_handle.clone(),
5001 buffer
5002 .edited_ranges_for_transaction::<usize>(transaction)
5003 .collect(),
5004 DEFAULT_MULTIBUFFER_CONTEXT,
5005 cx,
5006 ),
5007 );
5008 }
5009 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
5010 multibuffer
5011 })?;
5012
5013 workspace.update(&mut cx, |workspace, cx| {
5014 let project = workspace.project().clone();
5015 let editor =
5016 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
5017 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
5018 editor.update(cx, |editor, cx| {
5019 editor.highlight_background::<Self>(
5020 &ranges_to_highlight,
5021 |theme| theme.editor_highlighted_line_background,
5022 cx,
5023 );
5024 });
5025 })?;
5026
5027 Ok(())
5028 }
5029
5030 pub fn clear_code_action_providers(&mut self) {
5031 self.code_action_providers.clear();
5032 self.available_code_actions.take();
5033 }
5034
5035 pub fn push_code_action_provider(
5036 &mut self,
5037 provider: Arc<dyn CodeActionProvider>,
5038 cx: &mut ViewContext<Self>,
5039 ) {
5040 self.code_action_providers.push(provider);
5041 self.refresh_code_actions(cx);
5042 }
5043
5044 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5045 let buffer = self.buffer.read(cx);
5046 let newest_selection = self.selections.newest_anchor().clone();
5047 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5048 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5049 if start_buffer != end_buffer {
5050 return None;
5051 }
5052
5053 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5054 cx.background_executor()
5055 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5056 .await;
5057
5058 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5059 let providers = this.code_action_providers.clone();
5060 let tasks = this
5061 .code_action_providers
5062 .iter()
5063 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5064 .collect::<Vec<_>>();
5065 (providers, tasks)
5066 })?;
5067
5068 let mut actions = Vec::new();
5069 for (provider, provider_actions) in
5070 providers.into_iter().zip(future::join_all(tasks).await)
5071 {
5072 if let Some(provider_actions) = provider_actions.log_err() {
5073 actions.extend(provider_actions.into_iter().map(|action| {
5074 AvailableCodeAction {
5075 excerpt_id: newest_selection.start.excerpt_id,
5076 action,
5077 provider: provider.clone(),
5078 }
5079 }));
5080 }
5081 }
5082
5083 this.update(&mut cx, |this, cx| {
5084 this.available_code_actions = if actions.is_empty() {
5085 None
5086 } else {
5087 Some((
5088 Location {
5089 buffer: start_buffer,
5090 range: start..end,
5091 },
5092 actions.into(),
5093 ))
5094 };
5095 cx.notify();
5096 })
5097 }));
5098 None
5099 }
5100
5101 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5102 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5103 self.show_git_blame_inline = false;
5104
5105 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5106 cx.background_executor().timer(delay).await;
5107
5108 this.update(&mut cx, |this, cx| {
5109 this.show_git_blame_inline = true;
5110 cx.notify();
5111 })
5112 .log_err();
5113 }));
5114 }
5115 }
5116
5117 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5118 if self.pending_rename.is_some() {
5119 return None;
5120 }
5121
5122 let provider = self.semantics_provider.clone()?;
5123 let buffer = self.buffer.read(cx);
5124 let newest_selection = self.selections.newest_anchor().clone();
5125 let cursor_position = newest_selection.head();
5126 let (cursor_buffer, cursor_buffer_position) =
5127 buffer.text_anchor_for_position(cursor_position, cx)?;
5128 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5129 if cursor_buffer != tail_buffer {
5130 return None;
5131 }
5132
5133 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5134 cx.background_executor()
5135 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5136 .await;
5137
5138 let highlights = if let Some(highlights) = cx
5139 .update(|cx| {
5140 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5141 })
5142 .ok()
5143 .flatten()
5144 {
5145 highlights.await.log_err()
5146 } else {
5147 None
5148 };
5149
5150 if let Some(highlights) = highlights {
5151 this.update(&mut cx, |this, cx| {
5152 if this.pending_rename.is_some() {
5153 return;
5154 }
5155
5156 let buffer_id = cursor_position.buffer_id;
5157 let buffer = this.buffer.read(cx);
5158 if !buffer
5159 .text_anchor_for_position(cursor_position, cx)
5160 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5161 {
5162 return;
5163 }
5164
5165 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5166 let mut write_ranges = Vec::new();
5167 let mut read_ranges = Vec::new();
5168 for highlight in highlights {
5169 for (excerpt_id, excerpt_range) in
5170 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5171 {
5172 let start = highlight
5173 .range
5174 .start
5175 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5176 let end = highlight
5177 .range
5178 .end
5179 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5180 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5181 continue;
5182 }
5183
5184 let range = Anchor {
5185 buffer_id,
5186 excerpt_id,
5187 text_anchor: start,
5188 }..Anchor {
5189 buffer_id,
5190 excerpt_id,
5191 text_anchor: end,
5192 };
5193 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5194 write_ranges.push(range);
5195 } else {
5196 read_ranges.push(range);
5197 }
5198 }
5199 }
5200
5201 this.highlight_background::<DocumentHighlightRead>(
5202 &read_ranges,
5203 |theme| theme.editor_document_highlight_read_background,
5204 cx,
5205 );
5206 this.highlight_background::<DocumentHighlightWrite>(
5207 &write_ranges,
5208 |theme| theme.editor_document_highlight_write_background,
5209 cx,
5210 );
5211 cx.notify();
5212 })
5213 .log_err();
5214 }
5215 }));
5216 None
5217 }
5218
5219 pub fn refresh_inline_completion(
5220 &mut self,
5221 debounce: bool,
5222 user_requested: bool,
5223 cx: &mut ViewContext<Self>,
5224 ) -> Option<()> {
5225 let provider = self.inline_completion_provider()?;
5226 let cursor = self.selections.newest_anchor().head();
5227 let (buffer, cursor_buffer_position) =
5228 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5229
5230 if !user_requested
5231 && (!self.enable_inline_completions
5232 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5233 || !self.is_focused(cx))
5234 {
5235 self.discard_inline_completion(false, cx);
5236 return None;
5237 }
5238
5239 self.update_visible_inline_completion(cx);
5240 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5241 Some(())
5242 }
5243
5244 fn cycle_inline_completion(
5245 &mut self,
5246 direction: Direction,
5247 cx: &mut ViewContext<Self>,
5248 ) -> Option<()> {
5249 let provider = self.inline_completion_provider()?;
5250 let cursor = self.selections.newest_anchor().head();
5251 let (buffer, cursor_buffer_position) =
5252 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5253 if !self.enable_inline_completions
5254 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5255 {
5256 return None;
5257 }
5258
5259 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5260 self.update_visible_inline_completion(cx);
5261
5262 Some(())
5263 }
5264
5265 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5266 if !self.has_active_inline_completion() {
5267 self.refresh_inline_completion(false, true, cx);
5268 return;
5269 }
5270
5271 self.update_visible_inline_completion(cx);
5272 }
5273
5274 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5275 self.show_cursor_names(cx);
5276 }
5277
5278 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5279 self.show_cursor_names = true;
5280 cx.notify();
5281 cx.spawn(|this, mut cx| async move {
5282 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5283 this.update(&mut cx, |this, cx| {
5284 this.show_cursor_names = false;
5285 cx.notify()
5286 })
5287 .ok()
5288 })
5289 .detach();
5290 }
5291
5292 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5293 if self.has_active_inline_completion() {
5294 self.cycle_inline_completion(Direction::Next, cx);
5295 } else {
5296 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5297 if is_copilot_disabled {
5298 cx.propagate();
5299 }
5300 }
5301 }
5302
5303 pub fn previous_inline_completion(
5304 &mut self,
5305 _: &PreviousInlineCompletion,
5306 cx: &mut ViewContext<Self>,
5307 ) {
5308 if self.has_active_inline_completion() {
5309 self.cycle_inline_completion(Direction::Prev, cx);
5310 } else {
5311 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5312 if is_copilot_disabled {
5313 cx.propagate();
5314 }
5315 }
5316 }
5317
5318 pub fn accept_inline_completion(
5319 &mut self,
5320 _: &AcceptInlineCompletion,
5321 cx: &mut ViewContext<Self>,
5322 ) {
5323 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
5324 return;
5325 };
5326
5327 self.report_inline_completion_event(true, cx);
5328
5329 match &active_inline_completion.completion {
5330 InlineCompletion::Move(position) => {
5331 let position = *position;
5332 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
5333 selections.select_anchor_ranges([position..position]);
5334 });
5335 }
5336 InlineCompletion::Edit(edits) => {
5337 if let Some(provider) = self.inline_completion_provider() {
5338 provider.accept(cx);
5339 }
5340
5341 let snapshot = self.buffer.read(cx).snapshot(cx);
5342 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
5343
5344 self.buffer.update(cx, |buffer, cx| {
5345 buffer.edit(edits.iter().cloned(), None, cx)
5346 });
5347
5348 self.change_selections(None, cx, |s| {
5349 s.select_anchor_ranges([last_edit_end..last_edit_end])
5350 });
5351
5352 self.update_visible_inline_completion(cx);
5353 if self.active_inline_completion.is_none() {
5354 self.refresh_inline_completion(true, true, cx);
5355 }
5356
5357 cx.notify();
5358 }
5359 }
5360 }
5361
5362 pub fn accept_partial_inline_completion(
5363 &mut self,
5364 _: &AcceptPartialInlineCompletion,
5365 cx: &mut ViewContext<Self>,
5366 ) {
5367 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
5368 return;
5369 };
5370 if self.selections.count() != 1 {
5371 return;
5372 }
5373
5374 self.report_inline_completion_event(true, cx);
5375
5376 match &active_inline_completion.completion {
5377 InlineCompletion::Move(position) => {
5378 let position = *position;
5379 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
5380 selections.select_anchor_ranges([position..position]);
5381 });
5382 }
5383 InlineCompletion::Edit(edits) => {
5384 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
5385 let text = edits[0].1.as_str();
5386 let mut partial_completion = text
5387 .chars()
5388 .by_ref()
5389 .take_while(|c| c.is_alphabetic())
5390 .collect::<String>();
5391 if partial_completion.is_empty() {
5392 partial_completion = text
5393 .chars()
5394 .by_ref()
5395 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5396 .collect::<String>();
5397 }
5398
5399 cx.emit(EditorEvent::InputHandled {
5400 utf16_range_to_replace: None,
5401 text: partial_completion.clone().into(),
5402 });
5403
5404 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5405
5406 self.refresh_inline_completion(true, true, cx);
5407 cx.notify();
5408 }
5409 }
5410 }
5411 }
5412
5413 fn discard_inline_completion(
5414 &mut self,
5415 should_report_inline_completion_event: bool,
5416 cx: &mut ViewContext<Self>,
5417 ) -> bool {
5418 if should_report_inline_completion_event {
5419 self.report_inline_completion_event(false, cx);
5420 }
5421
5422 if let Some(provider) = self.inline_completion_provider() {
5423 provider.discard(cx);
5424 }
5425
5426 self.take_active_inline_completion(cx).is_some()
5427 }
5428
5429 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
5430 let Some(provider) = self.inline_completion_provider() else {
5431 return;
5432 };
5433 let Some(project) = self.project.as_ref() else {
5434 return;
5435 };
5436 let Some((_, buffer, _)) = self
5437 .buffer
5438 .read(cx)
5439 .excerpt_containing(self.selections.newest_anchor().head(), cx)
5440 else {
5441 return;
5442 };
5443
5444 let project = project.read(cx);
5445 let extension = buffer
5446 .read(cx)
5447 .file()
5448 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
5449 project.client().telemetry().report_inline_completion_event(
5450 provider.name().into(),
5451 accepted,
5452 extension,
5453 );
5454 }
5455
5456 pub fn has_active_inline_completion(&self) -> bool {
5457 self.active_inline_completion.is_some()
5458 }
5459
5460 fn take_active_inline_completion(
5461 &mut self,
5462 cx: &mut ViewContext<Self>,
5463 ) -> Option<InlineCompletion> {
5464 let active_inline_completion = self.active_inline_completion.take()?;
5465 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
5466 self.clear_highlights::<InlineCompletionHighlight>(cx);
5467 Some(active_inline_completion.completion)
5468 }
5469
5470 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5471 let selection = self.selections.newest_anchor();
5472 let cursor = selection.head();
5473 let multibuffer = self.buffer.read(cx).snapshot(cx);
5474 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
5475 let excerpt_id = cursor.excerpt_id;
5476
5477 if self.context_menu.read().is_some()
5478 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion())
5479 || !offset_selection.is_empty()
5480 || self
5481 .active_inline_completion
5482 .as_ref()
5483 .map_or(false, |completion| {
5484 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
5485 let invalidation_range = invalidation_range.start..=invalidation_range.end;
5486 !invalidation_range.contains(&offset_selection.head())
5487 })
5488 {
5489 self.discard_inline_completion(false, cx);
5490 return None;
5491 }
5492
5493 self.take_active_inline_completion(cx);
5494 let provider = self.inline_completion_provider()?;
5495
5496 let (buffer, cursor_buffer_position) =
5497 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5498
5499 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
5500 let edits = completion
5501 .edits
5502 .into_iter()
5503 .map(|(range, new_text)| {
5504 (
5505 multibuffer
5506 .anchor_in_excerpt(excerpt_id, range.start)
5507 .unwrap()
5508 ..multibuffer
5509 .anchor_in_excerpt(excerpt_id, range.end)
5510 .unwrap(),
5511 new_text,
5512 )
5513 })
5514 .collect::<Vec<_>>();
5515 if edits.is_empty() {
5516 return None;
5517 }
5518
5519 let first_edit_start = edits.first().unwrap().0.start;
5520 let edit_start_row = first_edit_start
5521 .to_point(&multibuffer)
5522 .row
5523 .saturating_sub(2);
5524
5525 let last_edit_end = edits.last().unwrap().0.end;
5526 let edit_end_row = cmp::min(
5527 multibuffer.max_point().row,
5528 last_edit_end.to_point(&multibuffer).row + 2,
5529 );
5530
5531 let cursor_row = cursor.to_point(&multibuffer).row;
5532
5533 let mut inlay_ids = Vec::new();
5534 let invalidation_row_range;
5535 let completion;
5536 if cursor_row < edit_start_row {
5537 invalidation_row_range = cursor_row..edit_end_row;
5538 completion = InlineCompletion::Move(first_edit_start);
5539 } else if cursor_row > edit_end_row {
5540 invalidation_row_range = edit_start_row..cursor_row;
5541 completion = InlineCompletion::Move(first_edit_start);
5542 } else {
5543 if edits
5544 .iter()
5545 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
5546 {
5547 let mut inlays = Vec::new();
5548 for (range, new_text) in &edits {
5549 let inlay = Inlay::suggestion(
5550 post_inc(&mut self.next_inlay_id),
5551 range.start,
5552 new_text.as_str(),
5553 );
5554 inlay_ids.push(inlay.id);
5555 inlays.push(inlay);
5556 }
5557
5558 self.splice_inlays(vec![], inlays, cx);
5559 } else {
5560 let background_color = cx.theme().status().deleted_background;
5561 self.highlight_text::<InlineCompletionHighlight>(
5562 edits.iter().map(|(range, _)| range.clone()).collect(),
5563 HighlightStyle {
5564 background_color: Some(background_color),
5565 ..Default::default()
5566 },
5567 cx,
5568 );
5569 }
5570
5571 invalidation_row_range = edit_start_row..edit_end_row;
5572 completion = InlineCompletion::Edit(edits);
5573 };
5574
5575 let invalidation_range = multibuffer
5576 .anchor_before(Point::new(invalidation_row_range.start, 0))
5577 ..multibuffer.anchor_after(Point::new(
5578 invalidation_row_range.end,
5579 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
5580 ));
5581
5582 self.active_inline_completion = Some(InlineCompletionState {
5583 inlay_ids,
5584 completion,
5585 invalidation_range,
5586 });
5587 cx.notify();
5588
5589 Some(())
5590 }
5591
5592 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5593 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5594 }
5595
5596 fn render_code_actions_indicator(
5597 &self,
5598 _style: &EditorStyle,
5599 row: DisplayRow,
5600 is_active: bool,
5601 cx: &mut ViewContext<Self>,
5602 ) -> Option<IconButton> {
5603 if self.available_code_actions.is_some() {
5604 Some(
5605 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5606 .shape(ui::IconButtonShape::Square)
5607 .icon_size(IconSize::XSmall)
5608 .icon_color(Color::Muted)
5609 .selected(is_active)
5610 .tooltip({
5611 let focus_handle = self.focus_handle.clone();
5612 move |cx| {
5613 Tooltip::for_action_in(
5614 "Toggle Code Actions",
5615 &ToggleCodeActions {
5616 deployed_from_indicator: None,
5617 },
5618 &focus_handle,
5619 cx,
5620 )
5621 }
5622 })
5623 .on_click(cx.listener(move |editor, _e, cx| {
5624 editor.focus(cx);
5625 editor.toggle_code_actions(
5626 &ToggleCodeActions {
5627 deployed_from_indicator: Some(row),
5628 },
5629 cx,
5630 );
5631 })),
5632 )
5633 } else {
5634 None
5635 }
5636 }
5637
5638 fn clear_tasks(&mut self) {
5639 self.tasks.clear()
5640 }
5641
5642 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5643 if self.tasks.insert(key, value).is_some() {
5644 // This case should hopefully be rare, but just in case...
5645 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5646 }
5647 }
5648
5649 fn build_tasks_context(
5650 project: &Model<Project>,
5651 buffer: &Model<Buffer>,
5652 buffer_row: u32,
5653 tasks: &Arc<RunnableTasks>,
5654 cx: &mut ViewContext<Self>,
5655 ) -> Task<Option<task::TaskContext>> {
5656 let position = Point::new(buffer_row, tasks.column);
5657 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5658 let location = Location {
5659 buffer: buffer.clone(),
5660 range: range_start..range_start,
5661 };
5662 // Fill in the environmental variables from the tree-sitter captures
5663 let mut captured_task_variables = TaskVariables::default();
5664 for (capture_name, value) in tasks.extra_variables.clone() {
5665 captured_task_variables.insert(
5666 task::VariableName::Custom(capture_name.into()),
5667 value.clone(),
5668 );
5669 }
5670 project.update(cx, |project, cx| {
5671 project.task_store().update(cx, |task_store, cx| {
5672 task_store.task_context_for_location(captured_task_variables, location, cx)
5673 })
5674 })
5675 }
5676
5677 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5678 let Some((workspace, _)) = self.workspace.clone() else {
5679 return;
5680 };
5681 let Some(project) = self.project.clone() else {
5682 return;
5683 };
5684
5685 // Try to find a closest, enclosing node using tree-sitter that has a
5686 // task
5687 let Some((buffer, buffer_row, tasks)) = self
5688 .find_enclosing_node_task(cx)
5689 // Or find the task that's closest in row-distance.
5690 .or_else(|| self.find_closest_task(cx))
5691 else {
5692 return;
5693 };
5694
5695 let reveal_strategy = action.reveal;
5696 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5697 cx.spawn(|_, mut cx| async move {
5698 let context = task_context.await?;
5699 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5700
5701 let resolved = resolved_task.resolved.as_mut()?;
5702 resolved.reveal = reveal_strategy;
5703
5704 workspace
5705 .update(&mut cx, |workspace, cx| {
5706 workspace::tasks::schedule_resolved_task(
5707 workspace,
5708 task_source_kind,
5709 resolved_task,
5710 false,
5711 cx,
5712 );
5713 })
5714 .ok()
5715 })
5716 .detach();
5717 }
5718
5719 fn find_closest_task(
5720 &mut self,
5721 cx: &mut ViewContext<Self>,
5722 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5723 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5724
5725 let ((buffer_id, row), tasks) = self
5726 .tasks
5727 .iter()
5728 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5729
5730 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5731 let tasks = Arc::new(tasks.to_owned());
5732 Some((buffer, *row, tasks))
5733 }
5734
5735 fn find_enclosing_node_task(
5736 &mut self,
5737 cx: &mut ViewContext<Self>,
5738 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5739 let snapshot = self.buffer.read(cx).snapshot(cx);
5740 let offset = self.selections.newest::<usize>(cx).head();
5741 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5742 let buffer_id = excerpt.buffer().remote_id();
5743
5744 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5745 let mut cursor = layer.node().walk();
5746
5747 while cursor.goto_first_child_for_byte(offset).is_some() {
5748 if cursor.node().end_byte() == offset {
5749 cursor.goto_next_sibling();
5750 }
5751 }
5752
5753 // Ascend to the smallest ancestor that contains the range and has a task.
5754 loop {
5755 let node = cursor.node();
5756 let node_range = node.byte_range();
5757 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5758
5759 // Check if this node contains our offset
5760 if node_range.start <= offset && node_range.end >= offset {
5761 // If it contains offset, check for task
5762 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5763 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5764 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5765 }
5766 }
5767
5768 if !cursor.goto_parent() {
5769 break;
5770 }
5771 }
5772 None
5773 }
5774
5775 fn render_run_indicator(
5776 &self,
5777 _style: &EditorStyle,
5778 is_active: bool,
5779 row: DisplayRow,
5780 cx: &mut ViewContext<Self>,
5781 ) -> IconButton {
5782 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5783 .shape(ui::IconButtonShape::Square)
5784 .icon_size(IconSize::XSmall)
5785 .icon_color(Color::Muted)
5786 .selected(is_active)
5787 .on_click(cx.listener(move |editor, _e, cx| {
5788 editor.focus(cx);
5789 editor.toggle_code_actions(
5790 &ToggleCodeActions {
5791 deployed_from_indicator: Some(row),
5792 },
5793 cx,
5794 );
5795 }))
5796 }
5797
5798 pub fn context_menu_visible(&self) -> bool {
5799 self.context_menu
5800 .read()
5801 .as_ref()
5802 .map_or(false, |menu| menu.visible())
5803 }
5804
5805 fn render_context_menu(
5806 &self,
5807 cursor_position: DisplayPoint,
5808 style: &EditorStyle,
5809 max_height: Pixels,
5810 cx: &mut ViewContext<Editor>,
5811 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5812 self.context_menu.read().as_ref().map(|menu| {
5813 menu.render(
5814 cursor_position,
5815 style,
5816 max_height,
5817 self.workspace.as_ref().map(|(w, _)| w.clone()),
5818 cx,
5819 )
5820 })
5821 }
5822
5823 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5824 cx.notify();
5825 self.completion_tasks.clear();
5826 let context_menu = self.context_menu.write().take();
5827 if context_menu.is_some() {
5828 self.update_visible_inline_completion(cx);
5829 }
5830 context_menu
5831 }
5832
5833 fn show_snippet_choices(
5834 &mut self,
5835 choices: &Vec<String>,
5836 selection: Range<Anchor>,
5837 cx: &mut ViewContext<Self>,
5838 ) {
5839 if selection.start.buffer_id.is_none() {
5840 return;
5841 }
5842 let buffer_id = selection.start.buffer_id.unwrap();
5843 let buffer = self.buffer().read(cx).buffer(buffer_id);
5844 let id = post_inc(&mut self.next_completion_id);
5845
5846 if let Some(buffer) = buffer {
5847 *self.context_menu.write() = Some(ContextMenu::Completions(
5848 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5849 ));
5850 }
5851 }
5852
5853 pub fn insert_snippet(
5854 &mut self,
5855 insertion_ranges: &[Range<usize>],
5856 snippet: Snippet,
5857 cx: &mut ViewContext<Self>,
5858 ) -> Result<()> {
5859 struct Tabstop<T> {
5860 is_end_tabstop: bool,
5861 ranges: Vec<Range<T>>,
5862 choices: Option<Vec<String>>,
5863 }
5864
5865 let tabstops = self.buffer.update(cx, |buffer, cx| {
5866 let snippet_text: Arc<str> = snippet.text.clone().into();
5867 buffer.edit(
5868 insertion_ranges
5869 .iter()
5870 .cloned()
5871 .map(|range| (range, snippet_text.clone())),
5872 Some(AutoindentMode::EachLine),
5873 cx,
5874 );
5875
5876 let snapshot = &*buffer.read(cx);
5877 let snippet = &snippet;
5878 snippet
5879 .tabstops
5880 .iter()
5881 .map(|tabstop| {
5882 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5883 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5884 });
5885 let mut tabstop_ranges = tabstop
5886 .ranges
5887 .iter()
5888 .flat_map(|tabstop_range| {
5889 let mut delta = 0_isize;
5890 insertion_ranges.iter().map(move |insertion_range| {
5891 let insertion_start = insertion_range.start as isize + delta;
5892 delta +=
5893 snippet.text.len() as isize - insertion_range.len() as isize;
5894
5895 let start = ((insertion_start + tabstop_range.start) as usize)
5896 .min(snapshot.len());
5897 let end = ((insertion_start + tabstop_range.end) as usize)
5898 .min(snapshot.len());
5899 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5900 })
5901 })
5902 .collect::<Vec<_>>();
5903 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5904
5905 Tabstop {
5906 is_end_tabstop,
5907 ranges: tabstop_ranges,
5908 choices: tabstop.choices.clone(),
5909 }
5910 })
5911 .collect::<Vec<_>>()
5912 });
5913 if let Some(tabstop) = tabstops.first() {
5914 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5915 s.select_ranges(tabstop.ranges.iter().cloned());
5916 });
5917
5918 if let Some(choices) = &tabstop.choices {
5919 if let Some(selection) = tabstop.ranges.first() {
5920 self.show_snippet_choices(choices, selection.clone(), cx)
5921 }
5922 }
5923
5924 // If we're already at the last tabstop and it's at the end of the snippet,
5925 // we're done, we don't need to keep the state around.
5926 if !tabstop.is_end_tabstop {
5927 let choices = tabstops
5928 .iter()
5929 .map(|tabstop| tabstop.choices.clone())
5930 .collect();
5931
5932 let ranges = tabstops
5933 .into_iter()
5934 .map(|tabstop| tabstop.ranges)
5935 .collect::<Vec<_>>();
5936
5937 self.snippet_stack.push(SnippetState {
5938 active_index: 0,
5939 ranges,
5940 choices,
5941 });
5942 }
5943
5944 // Check whether the just-entered snippet ends with an auto-closable bracket.
5945 if self.autoclose_regions.is_empty() {
5946 let snapshot = self.buffer.read(cx).snapshot(cx);
5947 for selection in &mut self.selections.all::<Point>(cx) {
5948 let selection_head = selection.head();
5949 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5950 continue;
5951 };
5952
5953 let mut bracket_pair = None;
5954 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5955 let prev_chars = snapshot
5956 .reversed_chars_at(selection_head)
5957 .collect::<String>();
5958 for (pair, enabled) in scope.brackets() {
5959 if enabled
5960 && pair.close
5961 && prev_chars.starts_with(pair.start.as_str())
5962 && next_chars.starts_with(pair.end.as_str())
5963 {
5964 bracket_pair = Some(pair.clone());
5965 break;
5966 }
5967 }
5968 if let Some(pair) = bracket_pair {
5969 let start = snapshot.anchor_after(selection_head);
5970 let end = snapshot.anchor_after(selection_head);
5971 self.autoclose_regions.push(AutocloseRegion {
5972 selection_id: selection.id,
5973 range: start..end,
5974 pair,
5975 });
5976 }
5977 }
5978 }
5979 }
5980 Ok(())
5981 }
5982
5983 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5984 self.move_to_snippet_tabstop(Bias::Right, cx)
5985 }
5986
5987 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5988 self.move_to_snippet_tabstop(Bias::Left, cx)
5989 }
5990
5991 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5992 if let Some(mut snippet) = self.snippet_stack.pop() {
5993 match bias {
5994 Bias::Left => {
5995 if snippet.active_index > 0 {
5996 snippet.active_index -= 1;
5997 } else {
5998 self.snippet_stack.push(snippet);
5999 return false;
6000 }
6001 }
6002 Bias::Right => {
6003 if snippet.active_index + 1 < snippet.ranges.len() {
6004 snippet.active_index += 1;
6005 } else {
6006 self.snippet_stack.push(snippet);
6007 return false;
6008 }
6009 }
6010 }
6011 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
6012 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6013 s.select_anchor_ranges(current_ranges.iter().cloned())
6014 });
6015
6016 if let Some(choices) = &snippet.choices[snippet.active_index] {
6017 if let Some(selection) = current_ranges.first() {
6018 self.show_snippet_choices(&choices, selection.clone(), cx);
6019 }
6020 }
6021
6022 // If snippet state is not at the last tabstop, push it back on the stack
6023 if snippet.active_index + 1 < snippet.ranges.len() {
6024 self.snippet_stack.push(snippet);
6025 }
6026 return true;
6027 }
6028 }
6029
6030 false
6031 }
6032
6033 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
6034 self.transact(cx, |this, cx| {
6035 this.select_all(&SelectAll, cx);
6036 this.insert("", cx);
6037 });
6038 }
6039
6040 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
6041 self.transact(cx, |this, cx| {
6042 this.select_autoclose_pair(cx);
6043 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
6044 if !this.linked_edit_ranges.is_empty() {
6045 let selections = this.selections.all::<MultiBufferPoint>(cx);
6046 let snapshot = this.buffer.read(cx).snapshot(cx);
6047
6048 for selection in selections.iter() {
6049 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
6050 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
6051 if selection_start.buffer_id != selection_end.buffer_id {
6052 continue;
6053 }
6054 if let Some(ranges) =
6055 this.linked_editing_ranges_for(selection_start..selection_end, cx)
6056 {
6057 for (buffer, entries) in ranges {
6058 linked_ranges.entry(buffer).or_default().extend(entries);
6059 }
6060 }
6061 }
6062 }
6063
6064 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
6065 if !this.selections.line_mode {
6066 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
6067 for selection in &mut selections {
6068 if selection.is_empty() {
6069 let old_head = selection.head();
6070 let mut new_head =
6071 movement::left(&display_map, old_head.to_display_point(&display_map))
6072 .to_point(&display_map);
6073 if let Some((buffer, line_buffer_range)) = display_map
6074 .buffer_snapshot
6075 .buffer_line_for_row(MultiBufferRow(old_head.row))
6076 {
6077 let indent_size =
6078 buffer.indent_size_for_line(line_buffer_range.start.row);
6079 let indent_len = match indent_size.kind {
6080 IndentKind::Space => {
6081 buffer.settings_at(line_buffer_range.start, cx).tab_size
6082 }
6083 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
6084 };
6085 if old_head.column <= indent_size.len && old_head.column > 0 {
6086 let indent_len = indent_len.get();
6087 new_head = cmp::min(
6088 new_head,
6089 MultiBufferPoint::new(
6090 old_head.row,
6091 ((old_head.column - 1) / indent_len) * indent_len,
6092 ),
6093 );
6094 }
6095 }
6096
6097 selection.set_head(new_head, SelectionGoal::None);
6098 }
6099 }
6100 }
6101
6102 this.signature_help_state.set_backspace_pressed(true);
6103 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6104 this.insert("", cx);
6105 let empty_str: Arc<str> = Arc::from("");
6106 for (buffer, edits) in linked_ranges {
6107 let snapshot = buffer.read(cx).snapshot();
6108 use text::ToPoint as TP;
6109
6110 let edits = edits
6111 .into_iter()
6112 .map(|range| {
6113 let end_point = TP::to_point(&range.end, &snapshot);
6114 let mut start_point = TP::to_point(&range.start, &snapshot);
6115
6116 if end_point == start_point {
6117 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6118 .saturating_sub(1);
6119 start_point = TP::to_point(&offset, &snapshot);
6120 };
6121
6122 (start_point..end_point, empty_str.clone())
6123 })
6124 .sorted_by_key(|(range, _)| range.start)
6125 .collect::<Vec<_>>();
6126 buffer.update(cx, |this, cx| {
6127 this.edit(edits, None, cx);
6128 })
6129 }
6130 this.refresh_inline_completion(true, false, cx);
6131 linked_editing_ranges::refresh_linked_ranges(this, cx);
6132 });
6133 }
6134
6135 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
6136 self.transact(cx, |this, cx| {
6137 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6138 let line_mode = s.line_mode;
6139 s.move_with(|map, selection| {
6140 if selection.is_empty() && !line_mode {
6141 let cursor = movement::right(map, selection.head());
6142 selection.end = cursor;
6143 selection.reversed = true;
6144 selection.goal = SelectionGoal::None;
6145 }
6146 })
6147 });
6148 this.insert("", cx);
6149 this.refresh_inline_completion(true, false, cx);
6150 });
6151 }
6152
6153 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
6154 if self.move_to_prev_snippet_tabstop(cx) {
6155 return;
6156 }
6157
6158 self.outdent(&Outdent, cx);
6159 }
6160
6161 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
6162 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
6163 return;
6164 }
6165
6166 let mut selections = self.selections.all_adjusted(cx);
6167 let buffer = self.buffer.read(cx);
6168 let snapshot = buffer.snapshot(cx);
6169 let rows_iter = selections.iter().map(|s| s.head().row);
6170 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6171
6172 let mut edits = Vec::new();
6173 let mut prev_edited_row = 0;
6174 let mut row_delta = 0;
6175 for selection in &mut selections {
6176 if selection.start.row != prev_edited_row {
6177 row_delta = 0;
6178 }
6179 prev_edited_row = selection.end.row;
6180
6181 // If the selection is non-empty, then increase the indentation of the selected lines.
6182 if !selection.is_empty() {
6183 row_delta =
6184 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6185 continue;
6186 }
6187
6188 // If the selection is empty and the cursor is in the leading whitespace before the
6189 // suggested indentation, then auto-indent the line.
6190 let cursor = selection.head();
6191 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6192 if let Some(suggested_indent) =
6193 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6194 {
6195 if cursor.column < suggested_indent.len
6196 && cursor.column <= current_indent.len
6197 && current_indent.len <= suggested_indent.len
6198 {
6199 selection.start = Point::new(cursor.row, suggested_indent.len);
6200 selection.end = selection.start;
6201 if row_delta == 0 {
6202 edits.extend(Buffer::edit_for_indent_size_adjustment(
6203 cursor.row,
6204 current_indent,
6205 suggested_indent,
6206 ));
6207 row_delta = suggested_indent.len - current_indent.len;
6208 }
6209 continue;
6210 }
6211 }
6212
6213 // Otherwise, insert a hard or soft tab.
6214 let settings = buffer.settings_at(cursor, cx);
6215 let tab_size = if settings.hard_tabs {
6216 IndentSize::tab()
6217 } else {
6218 let tab_size = settings.tab_size.get();
6219 let char_column = snapshot
6220 .text_for_range(Point::new(cursor.row, 0)..cursor)
6221 .flat_map(str::chars)
6222 .count()
6223 + row_delta as usize;
6224 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6225 IndentSize::spaces(chars_to_next_tab_stop)
6226 };
6227 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6228 selection.end = selection.start;
6229 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6230 row_delta += tab_size.len;
6231 }
6232
6233 self.transact(cx, |this, cx| {
6234 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6235 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6236 this.refresh_inline_completion(true, false, cx);
6237 });
6238 }
6239
6240 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6241 if self.read_only(cx) {
6242 return;
6243 }
6244 let mut selections = self.selections.all::<Point>(cx);
6245 let mut prev_edited_row = 0;
6246 let mut row_delta = 0;
6247 let mut edits = Vec::new();
6248 let buffer = self.buffer.read(cx);
6249 let snapshot = buffer.snapshot(cx);
6250 for selection in &mut selections {
6251 if selection.start.row != prev_edited_row {
6252 row_delta = 0;
6253 }
6254 prev_edited_row = selection.end.row;
6255
6256 row_delta =
6257 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6258 }
6259
6260 self.transact(cx, |this, cx| {
6261 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6262 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6263 });
6264 }
6265
6266 fn indent_selection(
6267 buffer: &MultiBuffer,
6268 snapshot: &MultiBufferSnapshot,
6269 selection: &mut Selection<Point>,
6270 edits: &mut Vec<(Range<Point>, String)>,
6271 delta_for_start_row: u32,
6272 cx: &AppContext,
6273 ) -> u32 {
6274 let settings = buffer.settings_at(selection.start, cx);
6275 let tab_size = settings.tab_size.get();
6276 let indent_kind = if settings.hard_tabs {
6277 IndentKind::Tab
6278 } else {
6279 IndentKind::Space
6280 };
6281 let mut start_row = selection.start.row;
6282 let mut end_row = selection.end.row + 1;
6283
6284 // If a selection ends at the beginning of a line, don't indent
6285 // that last line.
6286 if selection.end.column == 0 && selection.end.row > selection.start.row {
6287 end_row -= 1;
6288 }
6289
6290 // Avoid re-indenting a row that has already been indented by a
6291 // previous selection, but still update this selection's column
6292 // to reflect that indentation.
6293 if delta_for_start_row > 0 {
6294 start_row += 1;
6295 selection.start.column += delta_for_start_row;
6296 if selection.end.row == selection.start.row {
6297 selection.end.column += delta_for_start_row;
6298 }
6299 }
6300
6301 let mut delta_for_end_row = 0;
6302 let has_multiple_rows = start_row + 1 != end_row;
6303 for row in start_row..end_row {
6304 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6305 let indent_delta = match (current_indent.kind, indent_kind) {
6306 (IndentKind::Space, IndentKind::Space) => {
6307 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6308 IndentSize::spaces(columns_to_next_tab_stop)
6309 }
6310 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6311 (_, IndentKind::Tab) => IndentSize::tab(),
6312 };
6313
6314 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6315 0
6316 } else {
6317 selection.start.column
6318 };
6319 let row_start = Point::new(row, start);
6320 edits.push((
6321 row_start..row_start,
6322 indent_delta.chars().collect::<String>(),
6323 ));
6324
6325 // Update this selection's endpoints to reflect the indentation.
6326 if row == selection.start.row {
6327 selection.start.column += indent_delta.len;
6328 }
6329 if row == selection.end.row {
6330 selection.end.column += indent_delta.len;
6331 delta_for_end_row = indent_delta.len;
6332 }
6333 }
6334
6335 if selection.start.row == selection.end.row {
6336 delta_for_start_row + delta_for_end_row
6337 } else {
6338 delta_for_end_row
6339 }
6340 }
6341
6342 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6343 if self.read_only(cx) {
6344 return;
6345 }
6346 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6347 let selections = self.selections.all::<Point>(cx);
6348 let mut deletion_ranges = Vec::new();
6349 let mut last_outdent = None;
6350 {
6351 let buffer = self.buffer.read(cx);
6352 let snapshot = buffer.snapshot(cx);
6353 for selection in &selections {
6354 let settings = buffer.settings_at(selection.start, cx);
6355 let tab_size = settings.tab_size.get();
6356 let mut rows = selection.spanned_rows(false, &display_map);
6357
6358 // Avoid re-outdenting a row that has already been outdented by a
6359 // previous selection.
6360 if let Some(last_row) = last_outdent {
6361 if last_row == rows.start {
6362 rows.start = rows.start.next_row();
6363 }
6364 }
6365 let has_multiple_rows = rows.len() > 1;
6366 for row in rows.iter_rows() {
6367 let indent_size = snapshot.indent_size_for_line(row);
6368 if indent_size.len > 0 {
6369 let deletion_len = match indent_size.kind {
6370 IndentKind::Space => {
6371 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6372 if columns_to_prev_tab_stop == 0 {
6373 tab_size
6374 } else {
6375 columns_to_prev_tab_stop
6376 }
6377 }
6378 IndentKind::Tab => 1,
6379 };
6380 let start = if has_multiple_rows
6381 || deletion_len > selection.start.column
6382 || indent_size.len < selection.start.column
6383 {
6384 0
6385 } else {
6386 selection.start.column - deletion_len
6387 };
6388 deletion_ranges.push(
6389 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6390 );
6391 last_outdent = Some(row);
6392 }
6393 }
6394 }
6395 }
6396
6397 self.transact(cx, |this, cx| {
6398 this.buffer.update(cx, |buffer, cx| {
6399 let empty_str: Arc<str> = Arc::default();
6400 buffer.edit(
6401 deletion_ranges
6402 .into_iter()
6403 .map(|range| (range, empty_str.clone())),
6404 None,
6405 cx,
6406 );
6407 });
6408 let selections = this.selections.all::<usize>(cx);
6409 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6410 });
6411 }
6412
6413 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
6414 if self.read_only(cx) {
6415 return;
6416 }
6417 let selections = self
6418 .selections
6419 .all::<usize>(cx)
6420 .into_iter()
6421 .map(|s| s.range());
6422
6423 self.transact(cx, |this, cx| {
6424 this.buffer.update(cx, |buffer, cx| {
6425 buffer.autoindent_ranges(selections, cx);
6426 });
6427 let selections = this.selections.all::<usize>(cx);
6428 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6429 });
6430 }
6431
6432 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6433 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6434 let selections = self.selections.all::<Point>(cx);
6435
6436 let mut new_cursors = Vec::new();
6437 let mut edit_ranges = Vec::new();
6438 let mut selections = selections.iter().peekable();
6439 while let Some(selection) = selections.next() {
6440 let mut rows = selection.spanned_rows(false, &display_map);
6441 let goal_display_column = selection.head().to_display_point(&display_map).column();
6442
6443 // Accumulate contiguous regions of rows that we want to delete.
6444 while let Some(next_selection) = selections.peek() {
6445 let next_rows = next_selection.spanned_rows(false, &display_map);
6446 if next_rows.start <= rows.end {
6447 rows.end = next_rows.end;
6448 selections.next().unwrap();
6449 } else {
6450 break;
6451 }
6452 }
6453
6454 let buffer = &display_map.buffer_snapshot;
6455 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6456 let edit_end;
6457 let cursor_buffer_row;
6458 if buffer.max_point().row >= rows.end.0 {
6459 // If there's a line after the range, delete the \n from the end of the row range
6460 // and position the cursor on the next line.
6461 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6462 cursor_buffer_row = rows.end;
6463 } else {
6464 // If there isn't a line after the range, delete the \n from the line before the
6465 // start of the row range and position the cursor there.
6466 edit_start = edit_start.saturating_sub(1);
6467 edit_end = buffer.len();
6468 cursor_buffer_row = rows.start.previous_row();
6469 }
6470
6471 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6472 *cursor.column_mut() =
6473 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6474
6475 new_cursors.push((
6476 selection.id,
6477 buffer.anchor_after(cursor.to_point(&display_map)),
6478 ));
6479 edit_ranges.push(edit_start..edit_end);
6480 }
6481
6482 self.transact(cx, |this, cx| {
6483 let buffer = this.buffer.update(cx, |buffer, cx| {
6484 let empty_str: Arc<str> = Arc::default();
6485 buffer.edit(
6486 edit_ranges
6487 .into_iter()
6488 .map(|range| (range, empty_str.clone())),
6489 None,
6490 cx,
6491 );
6492 buffer.snapshot(cx)
6493 });
6494 let new_selections = new_cursors
6495 .into_iter()
6496 .map(|(id, cursor)| {
6497 let cursor = cursor.to_point(&buffer);
6498 Selection {
6499 id,
6500 start: cursor,
6501 end: cursor,
6502 reversed: false,
6503 goal: SelectionGoal::None,
6504 }
6505 })
6506 .collect();
6507
6508 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6509 s.select(new_selections);
6510 });
6511 });
6512 }
6513
6514 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6515 if self.read_only(cx) {
6516 return;
6517 }
6518 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6519 for selection in self.selections.all::<Point>(cx) {
6520 let start = MultiBufferRow(selection.start.row);
6521 // Treat single line selections as if they include the next line. Otherwise this action
6522 // would do nothing for single line selections individual cursors.
6523 let end = if selection.start.row == selection.end.row {
6524 MultiBufferRow(selection.start.row + 1)
6525 } else {
6526 MultiBufferRow(selection.end.row)
6527 };
6528
6529 if let Some(last_row_range) = row_ranges.last_mut() {
6530 if start <= last_row_range.end {
6531 last_row_range.end = end;
6532 continue;
6533 }
6534 }
6535 row_ranges.push(start..end);
6536 }
6537
6538 let snapshot = self.buffer.read(cx).snapshot(cx);
6539 let mut cursor_positions = Vec::new();
6540 for row_range in &row_ranges {
6541 let anchor = snapshot.anchor_before(Point::new(
6542 row_range.end.previous_row().0,
6543 snapshot.line_len(row_range.end.previous_row()),
6544 ));
6545 cursor_positions.push(anchor..anchor);
6546 }
6547
6548 self.transact(cx, |this, cx| {
6549 for row_range in row_ranges.into_iter().rev() {
6550 for row in row_range.iter_rows().rev() {
6551 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6552 let next_line_row = row.next_row();
6553 let indent = snapshot.indent_size_for_line(next_line_row);
6554 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6555
6556 let replace = if snapshot.line_len(next_line_row) > indent.len {
6557 " "
6558 } else {
6559 ""
6560 };
6561
6562 this.buffer.update(cx, |buffer, cx| {
6563 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6564 });
6565 }
6566 }
6567
6568 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6569 s.select_anchor_ranges(cursor_positions)
6570 });
6571 });
6572 }
6573
6574 pub fn sort_lines_case_sensitive(
6575 &mut self,
6576 _: &SortLinesCaseSensitive,
6577 cx: &mut ViewContext<Self>,
6578 ) {
6579 self.manipulate_lines(cx, |lines| lines.sort())
6580 }
6581
6582 pub fn sort_lines_case_insensitive(
6583 &mut self,
6584 _: &SortLinesCaseInsensitive,
6585 cx: &mut ViewContext<Self>,
6586 ) {
6587 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6588 }
6589
6590 pub fn unique_lines_case_insensitive(
6591 &mut self,
6592 _: &UniqueLinesCaseInsensitive,
6593 cx: &mut ViewContext<Self>,
6594 ) {
6595 self.manipulate_lines(cx, |lines| {
6596 let mut seen = HashSet::default();
6597 lines.retain(|line| seen.insert(line.to_lowercase()));
6598 })
6599 }
6600
6601 pub fn unique_lines_case_sensitive(
6602 &mut self,
6603 _: &UniqueLinesCaseSensitive,
6604 cx: &mut ViewContext<Self>,
6605 ) {
6606 self.manipulate_lines(cx, |lines| {
6607 let mut seen = HashSet::default();
6608 lines.retain(|line| seen.insert(*line));
6609 })
6610 }
6611
6612 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6613 let mut revert_changes = HashMap::default();
6614 let snapshot = self.snapshot(cx);
6615 for hunk in hunks_for_ranges(
6616 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
6617 &snapshot,
6618 ) {
6619 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6620 }
6621 if !revert_changes.is_empty() {
6622 self.transact(cx, |editor, cx| {
6623 editor.revert(revert_changes, cx);
6624 });
6625 }
6626 }
6627
6628 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6629 let Some(project) = self.project.clone() else {
6630 return;
6631 };
6632 self.reload(project, cx).detach_and_notify_err(cx);
6633 }
6634
6635 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6636 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6637 if !revert_changes.is_empty() {
6638 self.transact(cx, |editor, cx| {
6639 editor.revert(revert_changes, cx);
6640 });
6641 }
6642 }
6643
6644 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6645 let snapshot = self.buffer.read(cx).read(cx);
6646 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6647 drop(snapshot);
6648 let mut revert_changes = HashMap::default();
6649 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6650 if !revert_changes.is_empty() {
6651 self.revert(revert_changes, cx)
6652 }
6653 }
6654 }
6655
6656 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6657 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6658 let project_path = buffer.read(cx).project_path(cx)?;
6659 let project = self.project.as_ref()?.read(cx);
6660 let entry = project.entry_for_path(&project_path, cx)?;
6661 let parent = match &entry.canonical_path {
6662 Some(canonical_path) => canonical_path.to_path_buf(),
6663 None => project.absolute_path(&project_path, cx)?,
6664 }
6665 .parent()?
6666 .to_path_buf();
6667 Some(parent)
6668 }) {
6669 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6670 }
6671 }
6672
6673 fn gather_revert_changes(
6674 &mut self,
6675 selections: &[Selection<Point>],
6676 cx: &mut ViewContext<'_, Editor>,
6677 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6678 let mut revert_changes = HashMap::default();
6679 let snapshot = self.snapshot(cx);
6680 for hunk in hunks_for_selections(&snapshot, selections) {
6681 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6682 }
6683 revert_changes
6684 }
6685
6686 pub fn prepare_revert_change(
6687 &mut self,
6688 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6689 hunk: &MultiBufferDiffHunk,
6690 cx: &AppContext,
6691 ) -> Option<()> {
6692 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6693 let buffer = buffer.read(cx);
6694 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6695 let original_text = change_set
6696 .read(cx)
6697 .base_text
6698 .as_ref()?
6699 .read(cx)
6700 .as_rope()
6701 .slice(hunk.diff_base_byte_range.clone());
6702 let buffer_snapshot = buffer.snapshot();
6703 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6704 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6705 probe
6706 .0
6707 .start
6708 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6709 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6710 }) {
6711 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6712 Some(())
6713 } else {
6714 None
6715 }
6716 }
6717
6718 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6719 self.manipulate_lines(cx, |lines| lines.reverse())
6720 }
6721
6722 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6723 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6724 }
6725
6726 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6727 where
6728 Fn: FnMut(&mut Vec<&str>),
6729 {
6730 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6731 let buffer = self.buffer.read(cx).snapshot(cx);
6732
6733 let mut edits = Vec::new();
6734
6735 let selections = self.selections.all::<Point>(cx);
6736 let mut selections = selections.iter().peekable();
6737 let mut contiguous_row_selections = Vec::new();
6738 let mut new_selections = Vec::new();
6739 let mut added_lines = 0;
6740 let mut removed_lines = 0;
6741
6742 while let Some(selection) = selections.next() {
6743 let (start_row, end_row) = consume_contiguous_rows(
6744 &mut contiguous_row_selections,
6745 selection,
6746 &display_map,
6747 &mut selections,
6748 );
6749
6750 let start_point = Point::new(start_row.0, 0);
6751 let end_point = Point::new(
6752 end_row.previous_row().0,
6753 buffer.line_len(end_row.previous_row()),
6754 );
6755 let text = buffer
6756 .text_for_range(start_point..end_point)
6757 .collect::<String>();
6758
6759 let mut lines = text.split('\n').collect_vec();
6760
6761 let lines_before = lines.len();
6762 callback(&mut lines);
6763 let lines_after = lines.len();
6764
6765 edits.push((start_point..end_point, lines.join("\n")));
6766
6767 // Selections must change based on added and removed line count
6768 let start_row =
6769 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6770 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6771 new_selections.push(Selection {
6772 id: selection.id,
6773 start: start_row,
6774 end: end_row,
6775 goal: SelectionGoal::None,
6776 reversed: selection.reversed,
6777 });
6778
6779 if lines_after > lines_before {
6780 added_lines += lines_after - lines_before;
6781 } else if lines_before > lines_after {
6782 removed_lines += lines_before - lines_after;
6783 }
6784 }
6785
6786 self.transact(cx, |this, cx| {
6787 let buffer = this.buffer.update(cx, |buffer, cx| {
6788 buffer.edit(edits, None, cx);
6789 buffer.snapshot(cx)
6790 });
6791
6792 // Recalculate offsets on newly edited buffer
6793 let new_selections = new_selections
6794 .iter()
6795 .map(|s| {
6796 let start_point = Point::new(s.start.0, 0);
6797 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6798 Selection {
6799 id: s.id,
6800 start: buffer.point_to_offset(start_point),
6801 end: buffer.point_to_offset(end_point),
6802 goal: s.goal,
6803 reversed: s.reversed,
6804 }
6805 })
6806 .collect();
6807
6808 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6809 s.select(new_selections);
6810 });
6811
6812 this.request_autoscroll(Autoscroll::fit(), cx);
6813 });
6814 }
6815
6816 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6817 self.manipulate_text(cx, |text| text.to_uppercase())
6818 }
6819
6820 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6821 self.manipulate_text(cx, |text| text.to_lowercase())
6822 }
6823
6824 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6825 self.manipulate_text(cx, |text| {
6826 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6827 // https://github.com/rutrum/convert-case/issues/16
6828 text.split('\n')
6829 .map(|line| line.to_case(Case::Title))
6830 .join("\n")
6831 })
6832 }
6833
6834 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6835 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6836 }
6837
6838 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6839 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6840 }
6841
6842 pub fn convert_to_upper_camel_case(
6843 &mut self,
6844 _: &ConvertToUpperCamelCase,
6845 cx: &mut ViewContext<Self>,
6846 ) {
6847 self.manipulate_text(cx, |text| {
6848 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6849 // https://github.com/rutrum/convert-case/issues/16
6850 text.split('\n')
6851 .map(|line| line.to_case(Case::UpperCamel))
6852 .join("\n")
6853 })
6854 }
6855
6856 pub fn convert_to_lower_camel_case(
6857 &mut self,
6858 _: &ConvertToLowerCamelCase,
6859 cx: &mut ViewContext<Self>,
6860 ) {
6861 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6862 }
6863
6864 pub fn convert_to_opposite_case(
6865 &mut self,
6866 _: &ConvertToOppositeCase,
6867 cx: &mut ViewContext<Self>,
6868 ) {
6869 self.manipulate_text(cx, |text| {
6870 text.chars()
6871 .fold(String::with_capacity(text.len()), |mut t, c| {
6872 if c.is_uppercase() {
6873 t.extend(c.to_lowercase());
6874 } else {
6875 t.extend(c.to_uppercase());
6876 }
6877 t
6878 })
6879 })
6880 }
6881
6882 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6883 where
6884 Fn: FnMut(&str) -> String,
6885 {
6886 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6887 let buffer = self.buffer.read(cx).snapshot(cx);
6888
6889 let mut new_selections = Vec::new();
6890 let mut edits = Vec::new();
6891 let mut selection_adjustment = 0i32;
6892
6893 for selection in self.selections.all::<usize>(cx) {
6894 let selection_is_empty = selection.is_empty();
6895
6896 let (start, end) = if selection_is_empty {
6897 let word_range = movement::surrounding_word(
6898 &display_map,
6899 selection.start.to_display_point(&display_map),
6900 );
6901 let start = word_range.start.to_offset(&display_map, Bias::Left);
6902 let end = word_range.end.to_offset(&display_map, Bias::Left);
6903 (start, end)
6904 } else {
6905 (selection.start, selection.end)
6906 };
6907
6908 let text = buffer.text_for_range(start..end).collect::<String>();
6909 let old_length = text.len() as i32;
6910 let text = callback(&text);
6911
6912 new_selections.push(Selection {
6913 start: (start as i32 - selection_adjustment) as usize,
6914 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6915 goal: SelectionGoal::None,
6916 ..selection
6917 });
6918
6919 selection_adjustment += old_length - text.len() as i32;
6920
6921 edits.push((start..end, text));
6922 }
6923
6924 self.transact(cx, |this, cx| {
6925 this.buffer.update(cx, |buffer, cx| {
6926 buffer.edit(edits, None, cx);
6927 });
6928
6929 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6930 s.select(new_selections);
6931 });
6932
6933 this.request_autoscroll(Autoscroll::fit(), cx);
6934 });
6935 }
6936
6937 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6938 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6939 let buffer = &display_map.buffer_snapshot;
6940 let selections = self.selections.all::<Point>(cx);
6941
6942 let mut edits = Vec::new();
6943 let mut selections_iter = selections.iter().peekable();
6944 while let Some(selection) = selections_iter.next() {
6945 // Avoid duplicating the same lines twice.
6946 let mut rows = selection.spanned_rows(false, &display_map);
6947
6948 while let Some(next_selection) = selections_iter.peek() {
6949 let next_rows = next_selection.spanned_rows(false, &display_map);
6950 if next_rows.start < rows.end {
6951 rows.end = next_rows.end;
6952 selections_iter.next().unwrap();
6953 } else {
6954 break;
6955 }
6956 }
6957
6958 // Copy the text from the selected row region and splice it either at the start
6959 // or end of the region.
6960 let start = Point::new(rows.start.0, 0);
6961 let end = Point::new(
6962 rows.end.previous_row().0,
6963 buffer.line_len(rows.end.previous_row()),
6964 );
6965 let text = buffer
6966 .text_for_range(start..end)
6967 .chain(Some("\n"))
6968 .collect::<String>();
6969 let insert_location = if upwards {
6970 Point::new(rows.end.0, 0)
6971 } else {
6972 start
6973 };
6974 edits.push((insert_location..insert_location, text));
6975 }
6976
6977 self.transact(cx, |this, cx| {
6978 this.buffer.update(cx, |buffer, cx| {
6979 buffer.edit(edits, None, cx);
6980 });
6981
6982 this.request_autoscroll(Autoscroll::fit(), cx);
6983 });
6984 }
6985
6986 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6987 self.duplicate_line(true, cx);
6988 }
6989
6990 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6991 self.duplicate_line(false, cx);
6992 }
6993
6994 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6995 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6996 let buffer = self.buffer.read(cx).snapshot(cx);
6997
6998 let mut edits = Vec::new();
6999 let mut unfold_ranges = Vec::new();
7000 let mut refold_creases = Vec::new();
7001
7002 let selections = self.selections.all::<Point>(cx);
7003 let mut selections = selections.iter().peekable();
7004 let mut contiguous_row_selections = Vec::new();
7005 let mut new_selections = Vec::new();
7006
7007 while let Some(selection) = selections.next() {
7008 // Find all the selections that span a contiguous row range
7009 let (start_row, end_row) = consume_contiguous_rows(
7010 &mut contiguous_row_selections,
7011 selection,
7012 &display_map,
7013 &mut selections,
7014 );
7015
7016 // Move the text spanned by the row range to be before the line preceding the row range
7017 if start_row.0 > 0 {
7018 let range_to_move = Point::new(
7019 start_row.previous_row().0,
7020 buffer.line_len(start_row.previous_row()),
7021 )
7022 ..Point::new(
7023 end_row.previous_row().0,
7024 buffer.line_len(end_row.previous_row()),
7025 );
7026 let insertion_point = display_map
7027 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
7028 .0;
7029
7030 // Don't move lines across excerpts
7031 if buffer
7032 .excerpt_boundaries_in_range((
7033 Bound::Excluded(insertion_point),
7034 Bound::Included(range_to_move.end),
7035 ))
7036 .next()
7037 .is_none()
7038 {
7039 let text = buffer
7040 .text_for_range(range_to_move.clone())
7041 .flat_map(|s| s.chars())
7042 .skip(1)
7043 .chain(['\n'])
7044 .collect::<String>();
7045
7046 edits.push((
7047 buffer.anchor_after(range_to_move.start)
7048 ..buffer.anchor_before(range_to_move.end),
7049 String::new(),
7050 ));
7051 let insertion_anchor = buffer.anchor_after(insertion_point);
7052 edits.push((insertion_anchor..insertion_anchor, text));
7053
7054 let row_delta = range_to_move.start.row - insertion_point.row + 1;
7055
7056 // Move selections up
7057 new_selections.extend(contiguous_row_selections.drain(..).map(
7058 |mut selection| {
7059 selection.start.row -= row_delta;
7060 selection.end.row -= row_delta;
7061 selection
7062 },
7063 ));
7064
7065 // Move folds up
7066 unfold_ranges.push(range_to_move.clone());
7067 for fold in display_map.folds_in_range(
7068 buffer.anchor_before(range_to_move.start)
7069 ..buffer.anchor_after(range_to_move.end),
7070 ) {
7071 let mut start = fold.range.start.to_point(&buffer);
7072 let mut end = fold.range.end.to_point(&buffer);
7073 start.row -= row_delta;
7074 end.row -= row_delta;
7075 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7076 }
7077 }
7078 }
7079
7080 // If we didn't move line(s), preserve the existing selections
7081 new_selections.append(&mut contiguous_row_selections);
7082 }
7083
7084 self.transact(cx, |this, cx| {
7085 this.unfold_ranges(&unfold_ranges, true, true, cx);
7086 this.buffer.update(cx, |buffer, cx| {
7087 for (range, text) in edits {
7088 buffer.edit([(range, text)], None, cx);
7089 }
7090 });
7091 this.fold_creases(refold_creases, true, cx);
7092 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7093 s.select(new_selections);
7094 })
7095 });
7096 }
7097
7098 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
7099 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7100 let buffer = self.buffer.read(cx).snapshot(cx);
7101
7102 let mut edits = Vec::new();
7103 let mut unfold_ranges = Vec::new();
7104 let mut refold_creases = Vec::new();
7105
7106 let selections = self.selections.all::<Point>(cx);
7107 let mut selections = selections.iter().peekable();
7108 let mut contiguous_row_selections = Vec::new();
7109 let mut new_selections = Vec::new();
7110
7111 while let Some(selection) = selections.next() {
7112 // Find all the selections that span a contiguous row range
7113 let (start_row, end_row) = consume_contiguous_rows(
7114 &mut contiguous_row_selections,
7115 selection,
7116 &display_map,
7117 &mut selections,
7118 );
7119
7120 // Move the text spanned by the row range to be after the last line of the row range
7121 if end_row.0 <= buffer.max_point().row {
7122 let range_to_move =
7123 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
7124 let insertion_point = display_map
7125 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
7126 .0;
7127
7128 // Don't move lines across excerpt boundaries
7129 if buffer
7130 .excerpt_boundaries_in_range((
7131 Bound::Excluded(range_to_move.start),
7132 Bound::Included(insertion_point),
7133 ))
7134 .next()
7135 .is_none()
7136 {
7137 let mut text = String::from("\n");
7138 text.extend(buffer.text_for_range(range_to_move.clone()));
7139 text.pop(); // Drop trailing newline
7140 edits.push((
7141 buffer.anchor_after(range_to_move.start)
7142 ..buffer.anchor_before(range_to_move.end),
7143 String::new(),
7144 ));
7145 let insertion_anchor = buffer.anchor_after(insertion_point);
7146 edits.push((insertion_anchor..insertion_anchor, text));
7147
7148 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7149
7150 // Move selections down
7151 new_selections.extend(contiguous_row_selections.drain(..).map(
7152 |mut selection| {
7153 selection.start.row += row_delta;
7154 selection.end.row += row_delta;
7155 selection
7156 },
7157 ));
7158
7159 // Move folds down
7160 unfold_ranges.push(range_to_move.clone());
7161 for fold in display_map.folds_in_range(
7162 buffer.anchor_before(range_to_move.start)
7163 ..buffer.anchor_after(range_to_move.end),
7164 ) {
7165 let mut start = fold.range.start.to_point(&buffer);
7166 let mut end = fold.range.end.to_point(&buffer);
7167 start.row += row_delta;
7168 end.row += row_delta;
7169 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7170 }
7171 }
7172 }
7173
7174 // If we didn't move line(s), preserve the existing selections
7175 new_selections.append(&mut contiguous_row_selections);
7176 }
7177
7178 self.transact(cx, |this, cx| {
7179 this.unfold_ranges(&unfold_ranges, true, true, cx);
7180 this.buffer.update(cx, |buffer, cx| {
7181 for (range, text) in edits {
7182 buffer.edit([(range, text)], None, cx);
7183 }
7184 });
7185 this.fold_creases(refold_creases, true, cx);
7186 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
7187 });
7188 }
7189
7190 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
7191 let text_layout_details = &self.text_layout_details(cx);
7192 self.transact(cx, |this, cx| {
7193 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7194 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7195 let line_mode = s.line_mode;
7196 s.move_with(|display_map, selection| {
7197 if !selection.is_empty() || line_mode {
7198 return;
7199 }
7200
7201 let mut head = selection.head();
7202 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7203 if head.column() == display_map.line_len(head.row()) {
7204 transpose_offset = display_map
7205 .buffer_snapshot
7206 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7207 }
7208
7209 if transpose_offset == 0 {
7210 return;
7211 }
7212
7213 *head.column_mut() += 1;
7214 head = display_map.clip_point(head, Bias::Right);
7215 let goal = SelectionGoal::HorizontalPosition(
7216 display_map
7217 .x_for_display_point(head, text_layout_details)
7218 .into(),
7219 );
7220 selection.collapse_to(head, goal);
7221
7222 let transpose_start = display_map
7223 .buffer_snapshot
7224 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7225 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7226 let transpose_end = display_map
7227 .buffer_snapshot
7228 .clip_offset(transpose_offset + 1, Bias::Right);
7229 if let Some(ch) =
7230 display_map.buffer_snapshot.chars_at(transpose_start).next()
7231 {
7232 edits.push((transpose_start..transpose_offset, String::new()));
7233 edits.push((transpose_end..transpose_end, ch.to_string()));
7234 }
7235 }
7236 });
7237 edits
7238 });
7239 this.buffer
7240 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7241 let selections = this.selections.all::<usize>(cx);
7242 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7243 s.select(selections);
7244 });
7245 });
7246 }
7247
7248 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7249 self.rewrap_impl(IsVimMode::No, cx)
7250 }
7251
7252 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7253 let buffer = self.buffer.read(cx).snapshot(cx);
7254 let selections = self.selections.all::<Point>(cx);
7255 let mut selections = selections.iter().peekable();
7256
7257 let mut edits = Vec::new();
7258 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7259
7260 while let Some(selection) = selections.next() {
7261 let mut start_row = selection.start.row;
7262 let mut end_row = selection.end.row;
7263
7264 // Skip selections that overlap with a range that has already been rewrapped.
7265 let selection_range = start_row..end_row;
7266 if rewrapped_row_ranges
7267 .iter()
7268 .any(|range| range.overlaps(&selection_range))
7269 {
7270 continue;
7271 }
7272
7273 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7274
7275 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7276 match language_scope.language_name().0.as_ref() {
7277 "Markdown" | "Plain Text" => {
7278 should_rewrap = true;
7279 }
7280 _ => {}
7281 }
7282 }
7283
7284 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7285
7286 // Since not all lines in the selection may be at the same indent
7287 // level, choose the indent size that is the most common between all
7288 // of the lines.
7289 //
7290 // If there is a tie, we use the deepest indent.
7291 let (indent_size, indent_end) = {
7292 let mut indent_size_occurrences = HashMap::default();
7293 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7294
7295 for row in start_row..=end_row {
7296 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7297 rows_by_indent_size.entry(indent).or_default().push(row);
7298 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7299 }
7300
7301 let indent_size = indent_size_occurrences
7302 .into_iter()
7303 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7304 .map(|(indent, _)| indent)
7305 .unwrap_or_default();
7306 let row = rows_by_indent_size[&indent_size][0];
7307 let indent_end = Point::new(row, indent_size.len);
7308
7309 (indent_size, indent_end)
7310 };
7311
7312 let mut line_prefix = indent_size.chars().collect::<String>();
7313
7314 if let Some(comment_prefix) =
7315 buffer
7316 .language_scope_at(selection.head())
7317 .and_then(|language| {
7318 language
7319 .line_comment_prefixes()
7320 .iter()
7321 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7322 .cloned()
7323 })
7324 {
7325 line_prefix.push_str(&comment_prefix);
7326 should_rewrap = true;
7327 }
7328
7329 if !should_rewrap {
7330 continue;
7331 }
7332
7333 if selection.is_empty() {
7334 'expand_upwards: while start_row > 0 {
7335 let prev_row = start_row - 1;
7336 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7337 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7338 {
7339 start_row = prev_row;
7340 } else {
7341 break 'expand_upwards;
7342 }
7343 }
7344
7345 'expand_downwards: while end_row < buffer.max_point().row {
7346 let next_row = end_row + 1;
7347 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7348 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7349 {
7350 end_row = next_row;
7351 } else {
7352 break 'expand_downwards;
7353 }
7354 }
7355 }
7356
7357 let start = Point::new(start_row, 0);
7358 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7359 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7360 let Some(lines_without_prefixes) = selection_text
7361 .lines()
7362 .map(|line| {
7363 line.strip_prefix(&line_prefix)
7364 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7365 .ok_or_else(|| {
7366 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7367 })
7368 })
7369 .collect::<Result<Vec<_>, _>>()
7370 .log_err()
7371 else {
7372 continue;
7373 };
7374
7375 let wrap_column = buffer
7376 .settings_at(Point::new(start_row, 0), cx)
7377 .preferred_line_length as usize;
7378 let wrapped_text = wrap_with_prefix(
7379 line_prefix,
7380 lines_without_prefixes.join(" "),
7381 wrap_column,
7382 tab_size,
7383 );
7384
7385 // TODO: should always use char-based diff while still supporting cursor behavior that
7386 // matches vim.
7387 let diff = match is_vim_mode {
7388 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7389 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7390 };
7391 let mut offset = start.to_offset(&buffer);
7392 let mut moved_since_edit = true;
7393
7394 for change in diff.iter_all_changes() {
7395 let value = change.value();
7396 match change.tag() {
7397 ChangeTag::Equal => {
7398 offset += value.len();
7399 moved_since_edit = true;
7400 }
7401 ChangeTag::Delete => {
7402 let start = buffer.anchor_after(offset);
7403 let end = buffer.anchor_before(offset + value.len());
7404
7405 if moved_since_edit {
7406 edits.push((start..end, String::new()));
7407 } else {
7408 edits.last_mut().unwrap().0.end = end;
7409 }
7410
7411 offset += value.len();
7412 moved_since_edit = false;
7413 }
7414 ChangeTag::Insert => {
7415 if moved_since_edit {
7416 let anchor = buffer.anchor_after(offset);
7417 edits.push((anchor..anchor, value.to_string()));
7418 } else {
7419 edits.last_mut().unwrap().1.push_str(value);
7420 }
7421
7422 moved_since_edit = false;
7423 }
7424 }
7425 }
7426
7427 rewrapped_row_ranges.push(start_row..=end_row);
7428 }
7429
7430 self.buffer
7431 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7432 }
7433
7434 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
7435 let mut text = String::new();
7436 let buffer = self.buffer.read(cx).snapshot(cx);
7437 let mut selections = self.selections.all::<Point>(cx);
7438 let mut clipboard_selections = Vec::with_capacity(selections.len());
7439 {
7440 let max_point = buffer.max_point();
7441 let mut is_first = true;
7442 for selection in &mut selections {
7443 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7444 if is_entire_line {
7445 selection.start = Point::new(selection.start.row, 0);
7446 if !selection.is_empty() && selection.end.column == 0 {
7447 selection.end = cmp::min(max_point, selection.end);
7448 } else {
7449 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7450 }
7451 selection.goal = SelectionGoal::None;
7452 }
7453 if is_first {
7454 is_first = false;
7455 } else {
7456 text += "\n";
7457 }
7458 let mut len = 0;
7459 for chunk in buffer.text_for_range(selection.start..selection.end) {
7460 text.push_str(chunk);
7461 len += chunk.len();
7462 }
7463 clipboard_selections.push(ClipboardSelection {
7464 len,
7465 is_entire_line,
7466 first_line_indent: buffer
7467 .indent_size_for_line(MultiBufferRow(selection.start.row))
7468 .len,
7469 });
7470 }
7471 }
7472
7473 self.transact(cx, |this, cx| {
7474 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7475 s.select(selections);
7476 });
7477 this.insert("", cx);
7478 });
7479 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7480 }
7481
7482 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7483 let item = self.cut_common(cx);
7484 cx.write_to_clipboard(item);
7485 }
7486
7487 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
7488 self.change_selections(None, cx, |s| {
7489 s.move_with(|snapshot, sel| {
7490 if sel.is_empty() {
7491 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7492 }
7493 });
7494 });
7495 let item = self.cut_common(cx);
7496 cx.set_global(KillRing(item))
7497 }
7498
7499 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
7500 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7501 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7502 (kill_ring.text().to_string(), kill_ring.metadata_json())
7503 } else {
7504 return;
7505 }
7506 } else {
7507 return;
7508 };
7509 self.do_paste(&text, metadata, false, cx);
7510 }
7511
7512 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7513 let selections = self.selections.all::<Point>(cx);
7514 let buffer = self.buffer.read(cx).read(cx);
7515 let mut text = String::new();
7516
7517 let mut clipboard_selections = Vec::with_capacity(selections.len());
7518 {
7519 let max_point = buffer.max_point();
7520 let mut is_first = true;
7521 for selection in selections.iter() {
7522 let mut start = selection.start;
7523 let mut end = selection.end;
7524 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7525 if is_entire_line {
7526 start = Point::new(start.row, 0);
7527 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7528 }
7529 if is_first {
7530 is_first = false;
7531 } else {
7532 text += "\n";
7533 }
7534 let mut len = 0;
7535 for chunk in buffer.text_for_range(start..end) {
7536 text.push_str(chunk);
7537 len += chunk.len();
7538 }
7539 clipboard_selections.push(ClipboardSelection {
7540 len,
7541 is_entire_line,
7542 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7543 });
7544 }
7545 }
7546
7547 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7548 text,
7549 clipboard_selections,
7550 ));
7551 }
7552
7553 pub fn do_paste(
7554 &mut self,
7555 text: &String,
7556 clipboard_selections: Option<Vec<ClipboardSelection>>,
7557 handle_entire_lines: bool,
7558 cx: &mut ViewContext<Self>,
7559 ) {
7560 if self.read_only(cx) {
7561 return;
7562 }
7563
7564 let clipboard_text = Cow::Borrowed(text);
7565
7566 self.transact(cx, |this, cx| {
7567 if let Some(mut clipboard_selections) = clipboard_selections {
7568 let old_selections = this.selections.all::<usize>(cx);
7569 let all_selections_were_entire_line =
7570 clipboard_selections.iter().all(|s| s.is_entire_line);
7571 let first_selection_indent_column =
7572 clipboard_selections.first().map(|s| s.first_line_indent);
7573 if clipboard_selections.len() != old_selections.len() {
7574 clipboard_selections.drain(..);
7575 }
7576 let cursor_offset = this.selections.last::<usize>(cx).head();
7577 let mut auto_indent_on_paste = true;
7578
7579 this.buffer.update(cx, |buffer, cx| {
7580 let snapshot = buffer.read(cx);
7581 auto_indent_on_paste =
7582 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7583
7584 let mut start_offset = 0;
7585 let mut edits = Vec::new();
7586 let mut original_indent_columns = Vec::new();
7587 for (ix, selection) in old_selections.iter().enumerate() {
7588 let to_insert;
7589 let entire_line;
7590 let original_indent_column;
7591 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7592 let end_offset = start_offset + clipboard_selection.len;
7593 to_insert = &clipboard_text[start_offset..end_offset];
7594 entire_line = clipboard_selection.is_entire_line;
7595 start_offset = end_offset + 1;
7596 original_indent_column = Some(clipboard_selection.first_line_indent);
7597 } else {
7598 to_insert = clipboard_text.as_str();
7599 entire_line = all_selections_were_entire_line;
7600 original_indent_column = first_selection_indent_column
7601 }
7602
7603 // If the corresponding selection was empty when this slice of the
7604 // clipboard text was written, then the entire line containing the
7605 // selection was copied. If this selection is also currently empty,
7606 // then paste the line before the current line of the buffer.
7607 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7608 let column = selection.start.to_point(&snapshot).column as usize;
7609 let line_start = selection.start - column;
7610 line_start..line_start
7611 } else {
7612 selection.range()
7613 };
7614
7615 edits.push((range, to_insert));
7616 original_indent_columns.extend(original_indent_column);
7617 }
7618 drop(snapshot);
7619
7620 buffer.edit(
7621 edits,
7622 if auto_indent_on_paste {
7623 Some(AutoindentMode::Block {
7624 original_indent_columns,
7625 })
7626 } else {
7627 None
7628 },
7629 cx,
7630 );
7631 });
7632
7633 let selections = this.selections.all::<usize>(cx);
7634 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7635 } else {
7636 this.insert(&clipboard_text, cx);
7637 }
7638 });
7639 }
7640
7641 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7642 if let Some(item) = cx.read_from_clipboard() {
7643 let entries = item.entries();
7644
7645 match entries.first() {
7646 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7647 // of all the pasted entries.
7648 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7649 .do_paste(
7650 clipboard_string.text(),
7651 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7652 true,
7653 cx,
7654 ),
7655 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7656 }
7657 }
7658 }
7659
7660 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7661 if self.read_only(cx) {
7662 return;
7663 }
7664
7665 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7666 if let Some((selections, _)) =
7667 self.selection_history.transaction(transaction_id).cloned()
7668 {
7669 self.change_selections(None, cx, |s| {
7670 s.select_anchors(selections.to_vec());
7671 });
7672 }
7673 self.request_autoscroll(Autoscroll::fit(), cx);
7674 self.unmark_text(cx);
7675 self.refresh_inline_completion(true, false, cx);
7676 cx.emit(EditorEvent::Edited { transaction_id });
7677 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7678 }
7679 }
7680
7681 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7682 if self.read_only(cx) {
7683 return;
7684 }
7685
7686 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7687 if let Some((_, Some(selections))) =
7688 self.selection_history.transaction(transaction_id).cloned()
7689 {
7690 self.change_selections(None, cx, |s| {
7691 s.select_anchors(selections.to_vec());
7692 });
7693 }
7694 self.request_autoscroll(Autoscroll::fit(), cx);
7695 self.unmark_text(cx);
7696 self.refresh_inline_completion(true, false, cx);
7697 cx.emit(EditorEvent::Edited { transaction_id });
7698 }
7699 }
7700
7701 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7702 self.buffer
7703 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7704 }
7705
7706 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7707 self.buffer
7708 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7709 }
7710
7711 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7712 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7713 let line_mode = s.line_mode;
7714 s.move_with(|map, selection| {
7715 let cursor = if selection.is_empty() && !line_mode {
7716 movement::left(map, selection.start)
7717 } else {
7718 selection.start
7719 };
7720 selection.collapse_to(cursor, SelectionGoal::None);
7721 });
7722 })
7723 }
7724
7725 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7726 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7727 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7728 })
7729 }
7730
7731 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7732 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7733 let line_mode = s.line_mode;
7734 s.move_with(|map, selection| {
7735 let cursor = if selection.is_empty() && !line_mode {
7736 movement::right(map, selection.end)
7737 } else {
7738 selection.end
7739 };
7740 selection.collapse_to(cursor, SelectionGoal::None)
7741 });
7742 })
7743 }
7744
7745 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7746 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7747 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7748 })
7749 }
7750
7751 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7752 if self.take_rename(true, cx).is_some() {
7753 return;
7754 }
7755
7756 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7757 cx.propagate();
7758 return;
7759 }
7760
7761 let text_layout_details = &self.text_layout_details(cx);
7762 let selection_count = self.selections.count();
7763 let first_selection = self.selections.first_anchor();
7764
7765 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7766 let line_mode = s.line_mode;
7767 s.move_with(|map, selection| {
7768 if !selection.is_empty() && !line_mode {
7769 selection.goal = SelectionGoal::None;
7770 }
7771 let (cursor, goal) = movement::up(
7772 map,
7773 selection.start,
7774 selection.goal,
7775 false,
7776 text_layout_details,
7777 );
7778 selection.collapse_to(cursor, goal);
7779 });
7780 });
7781
7782 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7783 {
7784 cx.propagate();
7785 }
7786 }
7787
7788 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7789 if self.take_rename(true, cx).is_some() {
7790 return;
7791 }
7792
7793 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7794 cx.propagate();
7795 return;
7796 }
7797
7798 let text_layout_details = &self.text_layout_details(cx);
7799
7800 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7801 let line_mode = s.line_mode;
7802 s.move_with(|map, selection| {
7803 if !selection.is_empty() && !line_mode {
7804 selection.goal = SelectionGoal::None;
7805 }
7806 let (cursor, goal) = movement::up_by_rows(
7807 map,
7808 selection.start,
7809 action.lines,
7810 selection.goal,
7811 false,
7812 text_layout_details,
7813 );
7814 selection.collapse_to(cursor, goal);
7815 });
7816 })
7817 }
7818
7819 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7820 if self.take_rename(true, cx).is_some() {
7821 return;
7822 }
7823
7824 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7825 cx.propagate();
7826 return;
7827 }
7828
7829 let text_layout_details = &self.text_layout_details(cx);
7830
7831 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7832 let line_mode = s.line_mode;
7833 s.move_with(|map, selection| {
7834 if !selection.is_empty() && !line_mode {
7835 selection.goal = SelectionGoal::None;
7836 }
7837 let (cursor, goal) = movement::down_by_rows(
7838 map,
7839 selection.start,
7840 action.lines,
7841 selection.goal,
7842 false,
7843 text_layout_details,
7844 );
7845 selection.collapse_to(cursor, goal);
7846 });
7847 })
7848 }
7849
7850 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7851 let text_layout_details = &self.text_layout_details(cx);
7852 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7853 s.move_heads_with(|map, head, goal| {
7854 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7855 })
7856 })
7857 }
7858
7859 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7860 let text_layout_details = &self.text_layout_details(cx);
7861 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7862 s.move_heads_with(|map, head, goal| {
7863 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7864 })
7865 })
7866 }
7867
7868 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7869 let Some(row_count) = self.visible_row_count() else {
7870 return;
7871 };
7872
7873 let text_layout_details = &self.text_layout_details(cx);
7874
7875 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7876 s.move_heads_with(|map, head, goal| {
7877 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7878 })
7879 })
7880 }
7881
7882 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7883 if self.take_rename(true, cx).is_some() {
7884 return;
7885 }
7886
7887 if self
7888 .context_menu
7889 .write()
7890 .as_mut()
7891 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7892 .unwrap_or(false)
7893 {
7894 return;
7895 }
7896
7897 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7898 cx.propagate();
7899 return;
7900 }
7901
7902 let Some(row_count) = self.visible_row_count() else {
7903 return;
7904 };
7905
7906 let autoscroll = if action.center_cursor {
7907 Autoscroll::center()
7908 } else {
7909 Autoscroll::fit()
7910 };
7911
7912 let text_layout_details = &self.text_layout_details(cx);
7913
7914 self.change_selections(Some(autoscroll), cx, |s| {
7915 let line_mode = s.line_mode;
7916 s.move_with(|map, selection| {
7917 if !selection.is_empty() && !line_mode {
7918 selection.goal = SelectionGoal::None;
7919 }
7920 let (cursor, goal) = movement::up_by_rows(
7921 map,
7922 selection.end,
7923 row_count,
7924 selection.goal,
7925 false,
7926 text_layout_details,
7927 );
7928 selection.collapse_to(cursor, goal);
7929 });
7930 });
7931 }
7932
7933 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7934 let text_layout_details = &self.text_layout_details(cx);
7935 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7936 s.move_heads_with(|map, head, goal| {
7937 movement::up(map, head, goal, false, text_layout_details)
7938 })
7939 })
7940 }
7941
7942 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7943 self.take_rename(true, cx);
7944
7945 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7946 cx.propagate();
7947 return;
7948 }
7949
7950 let text_layout_details = &self.text_layout_details(cx);
7951 let selection_count = self.selections.count();
7952 let first_selection = self.selections.first_anchor();
7953
7954 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7955 let line_mode = s.line_mode;
7956 s.move_with(|map, selection| {
7957 if !selection.is_empty() && !line_mode {
7958 selection.goal = SelectionGoal::None;
7959 }
7960 let (cursor, goal) = movement::down(
7961 map,
7962 selection.end,
7963 selection.goal,
7964 false,
7965 text_layout_details,
7966 );
7967 selection.collapse_to(cursor, goal);
7968 });
7969 });
7970
7971 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7972 {
7973 cx.propagate();
7974 }
7975 }
7976
7977 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7978 let Some(row_count) = self.visible_row_count() else {
7979 return;
7980 };
7981
7982 let text_layout_details = &self.text_layout_details(cx);
7983
7984 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7985 s.move_heads_with(|map, head, goal| {
7986 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7987 })
7988 })
7989 }
7990
7991 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7992 if self.take_rename(true, cx).is_some() {
7993 return;
7994 }
7995
7996 if self
7997 .context_menu
7998 .write()
7999 .as_mut()
8000 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
8001 .unwrap_or(false)
8002 {
8003 return;
8004 }
8005
8006 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8007 cx.propagate();
8008 return;
8009 }
8010
8011 let Some(row_count) = self.visible_row_count() else {
8012 return;
8013 };
8014
8015 let autoscroll = if action.center_cursor {
8016 Autoscroll::center()
8017 } else {
8018 Autoscroll::fit()
8019 };
8020
8021 let text_layout_details = &self.text_layout_details(cx);
8022 self.change_selections(Some(autoscroll), cx, |s| {
8023 let line_mode = s.line_mode;
8024 s.move_with(|map, selection| {
8025 if !selection.is_empty() && !line_mode {
8026 selection.goal = SelectionGoal::None;
8027 }
8028 let (cursor, goal) = movement::down_by_rows(
8029 map,
8030 selection.end,
8031 row_count,
8032 selection.goal,
8033 false,
8034 text_layout_details,
8035 );
8036 selection.collapse_to(cursor, goal);
8037 });
8038 });
8039 }
8040
8041 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
8042 let text_layout_details = &self.text_layout_details(cx);
8043 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8044 s.move_heads_with(|map, head, goal| {
8045 movement::down(map, head, goal, false, text_layout_details)
8046 })
8047 });
8048 }
8049
8050 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
8051 if let Some(context_menu) = self.context_menu.write().as_mut() {
8052 context_menu.select_first(self.completion_provider.as_deref(), cx);
8053 }
8054 }
8055
8056 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
8057 if let Some(context_menu) = self.context_menu.write().as_mut() {
8058 context_menu.select_prev(self.completion_provider.as_deref(), cx);
8059 }
8060 }
8061
8062 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
8063 if let Some(context_menu) = self.context_menu.write().as_mut() {
8064 context_menu.select_next(self.completion_provider.as_deref(), cx);
8065 }
8066 }
8067
8068 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
8069 if let Some(context_menu) = self.context_menu.write().as_mut() {
8070 context_menu.select_last(self.completion_provider.as_deref(), cx);
8071 }
8072 }
8073
8074 pub fn move_to_previous_word_start(
8075 &mut self,
8076 _: &MoveToPreviousWordStart,
8077 cx: &mut ViewContext<Self>,
8078 ) {
8079 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8080 s.move_cursors_with(|map, head, _| {
8081 (
8082 movement::previous_word_start(map, head),
8083 SelectionGoal::None,
8084 )
8085 });
8086 })
8087 }
8088
8089 pub fn move_to_previous_subword_start(
8090 &mut self,
8091 _: &MoveToPreviousSubwordStart,
8092 cx: &mut ViewContext<Self>,
8093 ) {
8094 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8095 s.move_cursors_with(|map, head, _| {
8096 (
8097 movement::previous_subword_start(map, head),
8098 SelectionGoal::None,
8099 )
8100 });
8101 })
8102 }
8103
8104 pub fn select_to_previous_word_start(
8105 &mut self,
8106 _: &SelectToPreviousWordStart,
8107 cx: &mut ViewContext<Self>,
8108 ) {
8109 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8110 s.move_heads_with(|map, head, _| {
8111 (
8112 movement::previous_word_start(map, head),
8113 SelectionGoal::None,
8114 )
8115 });
8116 })
8117 }
8118
8119 pub fn select_to_previous_subword_start(
8120 &mut self,
8121 _: &SelectToPreviousSubwordStart,
8122 cx: &mut ViewContext<Self>,
8123 ) {
8124 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8125 s.move_heads_with(|map, head, _| {
8126 (
8127 movement::previous_subword_start(map, head),
8128 SelectionGoal::None,
8129 )
8130 });
8131 })
8132 }
8133
8134 pub fn delete_to_previous_word_start(
8135 &mut self,
8136 action: &DeleteToPreviousWordStart,
8137 cx: &mut ViewContext<Self>,
8138 ) {
8139 self.transact(cx, |this, cx| {
8140 this.select_autoclose_pair(cx);
8141 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8142 let line_mode = s.line_mode;
8143 s.move_with(|map, selection| {
8144 if selection.is_empty() && !line_mode {
8145 let cursor = if action.ignore_newlines {
8146 movement::previous_word_start(map, selection.head())
8147 } else {
8148 movement::previous_word_start_or_newline(map, selection.head())
8149 };
8150 selection.set_head(cursor, SelectionGoal::None);
8151 }
8152 });
8153 });
8154 this.insert("", cx);
8155 });
8156 }
8157
8158 pub fn delete_to_previous_subword_start(
8159 &mut self,
8160 _: &DeleteToPreviousSubwordStart,
8161 cx: &mut ViewContext<Self>,
8162 ) {
8163 self.transact(cx, |this, cx| {
8164 this.select_autoclose_pair(cx);
8165 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8166 let line_mode = s.line_mode;
8167 s.move_with(|map, selection| {
8168 if selection.is_empty() && !line_mode {
8169 let cursor = movement::previous_subword_start(map, selection.head());
8170 selection.set_head(cursor, SelectionGoal::None);
8171 }
8172 });
8173 });
8174 this.insert("", cx);
8175 });
8176 }
8177
8178 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
8179 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8180 s.move_cursors_with(|map, head, _| {
8181 (movement::next_word_end(map, head), SelectionGoal::None)
8182 });
8183 })
8184 }
8185
8186 pub fn move_to_next_subword_end(
8187 &mut self,
8188 _: &MoveToNextSubwordEnd,
8189 cx: &mut ViewContext<Self>,
8190 ) {
8191 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8192 s.move_cursors_with(|map, head, _| {
8193 (movement::next_subword_end(map, head), SelectionGoal::None)
8194 });
8195 })
8196 }
8197
8198 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
8199 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8200 s.move_heads_with(|map, head, _| {
8201 (movement::next_word_end(map, head), SelectionGoal::None)
8202 });
8203 })
8204 }
8205
8206 pub fn select_to_next_subword_end(
8207 &mut self,
8208 _: &SelectToNextSubwordEnd,
8209 cx: &mut ViewContext<Self>,
8210 ) {
8211 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8212 s.move_heads_with(|map, head, _| {
8213 (movement::next_subword_end(map, head), SelectionGoal::None)
8214 });
8215 })
8216 }
8217
8218 pub fn delete_to_next_word_end(
8219 &mut self,
8220 action: &DeleteToNextWordEnd,
8221 cx: &mut ViewContext<Self>,
8222 ) {
8223 self.transact(cx, |this, cx| {
8224 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8225 let line_mode = s.line_mode;
8226 s.move_with(|map, selection| {
8227 if selection.is_empty() && !line_mode {
8228 let cursor = if action.ignore_newlines {
8229 movement::next_word_end(map, selection.head())
8230 } else {
8231 movement::next_word_end_or_newline(map, selection.head())
8232 };
8233 selection.set_head(cursor, SelectionGoal::None);
8234 }
8235 });
8236 });
8237 this.insert("", cx);
8238 });
8239 }
8240
8241 pub fn delete_to_next_subword_end(
8242 &mut self,
8243 _: &DeleteToNextSubwordEnd,
8244 cx: &mut ViewContext<Self>,
8245 ) {
8246 self.transact(cx, |this, cx| {
8247 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8248 s.move_with(|map, selection| {
8249 if selection.is_empty() {
8250 let cursor = movement::next_subword_end(map, selection.head());
8251 selection.set_head(cursor, SelectionGoal::None);
8252 }
8253 });
8254 });
8255 this.insert("", cx);
8256 });
8257 }
8258
8259 pub fn move_to_beginning_of_line(
8260 &mut self,
8261 action: &MoveToBeginningOfLine,
8262 cx: &mut ViewContext<Self>,
8263 ) {
8264 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8265 s.move_cursors_with(|map, head, _| {
8266 (
8267 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8268 SelectionGoal::None,
8269 )
8270 });
8271 })
8272 }
8273
8274 pub fn select_to_beginning_of_line(
8275 &mut self,
8276 action: &SelectToBeginningOfLine,
8277 cx: &mut ViewContext<Self>,
8278 ) {
8279 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8280 s.move_heads_with(|map, head, _| {
8281 (
8282 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8283 SelectionGoal::None,
8284 )
8285 });
8286 });
8287 }
8288
8289 pub fn delete_to_beginning_of_line(
8290 &mut self,
8291 _: &DeleteToBeginningOfLine,
8292 cx: &mut ViewContext<Self>,
8293 ) {
8294 self.transact(cx, |this, cx| {
8295 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8296 s.move_with(|_, selection| {
8297 selection.reversed = true;
8298 });
8299 });
8300
8301 this.select_to_beginning_of_line(
8302 &SelectToBeginningOfLine {
8303 stop_at_soft_wraps: false,
8304 },
8305 cx,
8306 );
8307 this.backspace(&Backspace, cx);
8308 });
8309 }
8310
8311 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8312 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8313 s.move_cursors_with(|map, head, _| {
8314 (
8315 movement::line_end(map, head, action.stop_at_soft_wraps),
8316 SelectionGoal::None,
8317 )
8318 });
8319 })
8320 }
8321
8322 pub fn select_to_end_of_line(
8323 &mut self,
8324 action: &SelectToEndOfLine,
8325 cx: &mut ViewContext<Self>,
8326 ) {
8327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8328 s.move_heads_with(|map, head, _| {
8329 (
8330 movement::line_end(map, head, action.stop_at_soft_wraps),
8331 SelectionGoal::None,
8332 )
8333 });
8334 })
8335 }
8336
8337 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8338 self.transact(cx, |this, cx| {
8339 this.select_to_end_of_line(
8340 &SelectToEndOfLine {
8341 stop_at_soft_wraps: false,
8342 },
8343 cx,
8344 );
8345 this.delete(&Delete, cx);
8346 });
8347 }
8348
8349 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8350 self.transact(cx, |this, cx| {
8351 this.select_to_end_of_line(
8352 &SelectToEndOfLine {
8353 stop_at_soft_wraps: false,
8354 },
8355 cx,
8356 );
8357 this.cut(&Cut, cx);
8358 });
8359 }
8360
8361 pub fn move_to_start_of_paragraph(
8362 &mut self,
8363 _: &MoveToStartOfParagraph,
8364 cx: &mut ViewContext<Self>,
8365 ) {
8366 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8367 cx.propagate();
8368 return;
8369 }
8370
8371 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8372 s.move_with(|map, selection| {
8373 selection.collapse_to(
8374 movement::start_of_paragraph(map, selection.head(), 1),
8375 SelectionGoal::None,
8376 )
8377 });
8378 })
8379 }
8380
8381 pub fn move_to_end_of_paragraph(
8382 &mut self,
8383 _: &MoveToEndOfParagraph,
8384 cx: &mut ViewContext<Self>,
8385 ) {
8386 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8387 cx.propagate();
8388 return;
8389 }
8390
8391 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8392 s.move_with(|map, selection| {
8393 selection.collapse_to(
8394 movement::end_of_paragraph(map, selection.head(), 1),
8395 SelectionGoal::None,
8396 )
8397 });
8398 })
8399 }
8400
8401 pub fn select_to_start_of_paragraph(
8402 &mut self,
8403 _: &SelectToStartOfParagraph,
8404 cx: &mut ViewContext<Self>,
8405 ) {
8406 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8407 cx.propagate();
8408 return;
8409 }
8410
8411 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8412 s.move_heads_with(|map, head, _| {
8413 (
8414 movement::start_of_paragraph(map, head, 1),
8415 SelectionGoal::None,
8416 )
8417 });
8418 })
8419 }
8420
8421 pub fn select_to_end_of_paragraph(
8422 &mut self,
8423 _: &SelectToEndOfParagraph,
8424 cx: &mut ViewContext<Self>,
8425 ) {
8426 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8427 cx.propagate();
8428 return;
8429 }
8430
8431 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8432 s.move_heads_with(|map, head, _| {
8433 (
8434 movement::end_of_paragraph(map, head, 1),
8435 SelectionGoal::None,
8436 )
8437 });
8438 })
8439 }
8440
8441 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8442 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8443 cx.propagate();
8444 return;
8445 }
8446
8447 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8448 s.select_ranges(vec![0..0]);
8449 });
8450 }
8451
8452 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8453 let mut selection = self.selections.last::<Point>(cx);
8454 selection.set_head(Point::zero(), SelectionGoal::None);
8455
8456 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8457 s.select(vec![selection]);
8458 });
8459 }
8460
8461 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8462 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8463 cx.propagate();
8464 return;
8465 }
8466
8467 let cursor = self.buffer.read(cx).read(cx).len();
8468 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8469 s.select_ranges(vec![cursor..cursor])
8470 });
8471 }
8472
8473 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8474 self.nav_history = nav_history;
8475 }
8476
8477 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8478 self.nav_history.as_ref()
8479 }
8480
8481 fn push_to_nav_history(
8482 &mut self,
8483 cursor_anchor: Anchor,
8484 new_position: Option<Point>,
8485 cx: &mut ViewContext<Self>,
8486 ) {
8487 if let Some(nav_history) = self.nav_history.as_mut() {
8488 let buffer = self.buffer.read(cx).read(cx);
8489 let cursor_position = cursor_anchor.to_point(&buffer);
8490 let scroll_state = self.scroll_manager.anchor();
8491 let scroll_top_row = scroll_state.top_row(&buffer);
8492 drop(buffer);
8493
8494 if let Some(new_position) = new_position {
8495 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8496 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8497 return;
8498 }
8499 }
8500
8501 nav_history.push(
8502 Some(NavigationData {
8503 cursor_anchor,
8504 cursor_position,
8505 scroll_anchor: scroll_state,
8506 scroll_top_row,
8507 }),
8508 cx,
8509 );
8510 }
8511 }
8512
8513 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8514 let buffer = self.buffer.read(cx).snapshot(cx);
8515 let mut selection = self.selections.first::<usize>(cx);
8516 selection.set_head(buffer.len(), SelectionGoal::None);
8517 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8518 s.select(vec![selection]);
8519 });
8520 }
8521
8522 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8523 let end = self.buffer.read(cx).read(cx).len();
8524 self.change_selections(None, cx, |s| {
8525 s.select_ranges(vec![0..end]);
8526 });
8527 }
8528
8529 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8530 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8531 let mut selections = self.selections.all::<Point>(cx);
8532 let max_point = display_map.buffer_snapshot.max_point();
8533 for selection in &mut selections {
8534 let rows = selection.spanned_rows(true, &display_map);
8535 selection.start = Point::new(rows.start.0, 0);
8536 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8537 selection.reversed = false;
8538 }
8539 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8540 s.select(selections);
8541 });
8542 }
8543
8544 pub fn split_selection_into_lines(
8545 &mut self,
8546 _: &SplitSelectionIntoLines,
8547 cx: &mut ViewContext<Self>,
8548 ) {
8549 let mut to_unfold = Vec::new();
8550 let mut new_selection_ranges = Vec::new();
8551 {
8552 let selections = self.selections.all::<Point>(cx);
8553 let buffer = self.buffer.read(cx).read(cx);
8554 for selection in selections {
8555 for row in selection.start.row..selection.end.row {
8556 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8557 new_selection_ranges.push(cursor..cursor);
8558 }
8559 new_selection_ranges.push(selection.end..selection.end);
8560 to_unfold.push(selection.start..selection.end);
8561 }
8562 }
8563 self.unfold_ranges(&to_unfold, true, true, cx);
8564 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8565 s.select_ranges(new_selection_ranges);
8566 });
8567 }
8568
8569 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8570 self.add_selection(true, cx);
8571 }
8572
8573 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8574 self.add_selection(false, cx);
8575 }
8576
8577 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8578 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8579 let mut selections = self.selections.all::<Point>(cx);
8580 let text_layout_details = self.text_layout_details(cx);
8581 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8582 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8583 let range = oldest_selection.display_range(&display_map).sorted();
8584
8585 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8586 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8587 let positions = start_x.min(end_x)..start_x.max(end_x);
8588
8589 selections.clear();
8590 let mut stack = Vec::new();
8591 for row in range.start.row().0..=range.end.row().0 {
8592 if let Some(selection) = self.selections.build_columnar_selection(
8593 &display_map,
8594 DisplayRow(row),
8595 &positions,
8596 oldest_selection.reversed,
8597 &text_layout_details,
8598 ) {
8599 stack.push(selection.id);
8600 selections.push(selection);
8601 }
8602 }
8603
8604 if above {
8605 stack.reverse();
8606 }
8607
8608 AddSelectionsState { above, stack }
8609 });
8610
8611 let last_added_selection = *state.stack.last().unwrap();
8612 let mut new_selections = Vec::new();
8613 if above == state.above {
8614 let end_row = if above {
8615 DisplayRow(0)
8616 } else {
8617 display_map.max_point().row()
8618 };
8619
8620 'outer: for selection in selections {
8621 if selection.id == last_added_selection {
8622 let range = selection.display_range(&display_map).sorted();
8623 debug_assert_eq!(range.start.row(), range.end.row());
8624 let mut row = range.start.row();
8625 let positions =
8626 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8627 px(start)..px(end)
8628 } else {
8629 let start_x =
8630 display_map.x_for_display_point(range.start, &text_layout_details);
8631 let end_x =
8632 display_map.x_for_display_point(range.end, &text_layout_details);
8633 start_x.min(end_x)..start_x.max(end_x)
8634 };
8635
8636 while row != end_row {
8637 if above {
8638 row.0 -= 1;
8639 } else {
8640 row.0 += 1;
8641 }
8642
8643 if let Some(new_selection) = self.selections.build_columnar_selection(
8644 &display_map,
8645 row,
8646 &positions,
8647 selection.reversed,
8648 &text_layout_details,
8649 ) {
8650 state.stack.push(new_selection.id);
8651 if above {
8652 new_selections.push(new_selection);
8653 new_selections.push(selection);
8654 } else {
8655 new_selections.push(selection);
8656 new_selections.push(new_selection);
8657 }
8658
8659 continue 'outer;
8660 }
8661 }
8662 }
8663
8664 new_selections.push(selection);
8665 }
8666 } else {
8667 new_selections = selections;
8668 new_selections.retain(|s| s.id != last_added_selection);
8669 state.stack.pop();
8670 }
8671
8672 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8673 s.select(new_selections);
8674 });
8675 if state.stack.len() > 1 {
8676 self.add_selections_state = Some(state);
8677 }
8678 }
8679
8680 pub fn select_next_match_internal(
8681 &mut self,
8682 display_map: &DisplaySnapshot,
8683 replace_newest: bool,
8684 autoscroll: Option<Autoscroll>,
8685 cx: &mut ViewContext<Self>,
8686 ) -> Result<()> {
8687 fn select_next_match_ranges(
8688 this: &mut Editor,
8689 range: Range<usize>,
8690 replace_newest: bool,
8691 auto_scroll: Option<Autoscroll>,
8692 cx: &mut ViewContext<Editor>,
8693 ) {
8694 this.unfold_ranges(&[range.clone()], false, true, cx);
8695 this.change_selections(auto_scroll, cx, |s| {
8696 if replace_newest {
8697 s.delete(s.newest_anchor().id);
8698 }
8699 s.insert_range(range.clone());
8700 });
8701 }
8702
8703 let buffer = &display_map.buffer_snapshot;
8704 let mut selections = self.selections.all::<usize>(cx);
8705 if let Some(mut select_next_state) = self.select_next_state.take() {
8706 let query = &select_next_state.query;
8707 if !select_next_state.done {
8708 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8709 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8710 let mut next_selected_range = None;
8711
8712 let bytes_after_last_selection =
8713 buffer.bytes_in_range(last_selection.end..buffer.len());
8714 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8715 let query_matches = query
8716 .stream_find_iter(bytes_after_last_selection)
8717 .map(|result| (last_selection.end, result))
8718 .chain(
8719 query
8720 .stream_find_iter(bytes_before_first_selection)
8721 .map(|result| (0, result)),
8722 );
8723
8724 for (start_offset, query_match) in query_matches {
8725 let query_match = query_match.unwrap(); // can only fail due to I/O
8726 let offset_range =
8727 start_offset + query_match.start()..start_offset + query_match.end();
8728 let display_range = offset_range.start.to_display_point(display_map)
8729 ..offset_range.end.to_display_point(display_map);
8730
8731 if !select_next_state.wordwise
8732 || (!movement::is_inside_word(display_map, display_range.start)
8733 && !movement::is_inside_word(display_map, display_range.end))
8734 {
8735 // TODO: This is n^2, because we might check all the selections
8736 if !selections
8737 .iter()
8738 .any(|selection| selection.range().overlaps(&offset_range))
8739 {
8740 next_selected_range = Some(offset_range);
8741 break;
8742 }
8743 }
8744 }
8745
8746 if let Some(next_selected_range) = next_selected_range {
8747 select_next_match_ranges(
8748 self,
8749 next_selected_range,
8750 replace_newest,
8751 autoscroll,
8752 cx,
8753 );
8754 } else {
8755 select_next_state.done = true;
8756 }
8757 }
8758
8759 self.select_next_state = Some(select_next_state);
8760 } else {
8761 let mut only_carets = true;
8762 let mut same_text_selected = true;
8763 let mut selected_text = None;
8764
8765 let mut selections_iter = selections.iter().peekable();
8766 while let Some(selection) = selections_iter.next() {
8767 if selection.start != selection.end {
8768 only_carets = false;
8769 }
8770
8771 if same_text_selected {
8772 if selected_text.is_none() {
8773 selected_text =
8774 Some(buffer.text_for_range(selection.range()).collect::<String>());
8775 }
8776
8777 if let Some(next_selection) = selections_iter.peek() {
8778 if next_selection.range().len() == selection.range().len() {
8779 let next_selected_text = buffer
8780 .text_for_range(next_selection.range())
8781 .collect::<String>();
8782 if Some(next_selected_text) != selected_text {
8783 same_text_selected = false;
8784 selected_text = None;
8785 }
8786 } else {
8787 same_text_selected = false;
8788 selected_text = None;
8789 }
8790 }
8791 }
8792 }
8793
8794 if only_carets {
8795 for selection in &mut selections {
8796 let word_range = movement::surrounding_word(
8797 display_map,
8798 selection.start.to_display_point(display_map),
8799 );
8800 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8801 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8802 selection.goal = SelectionGoal::None;
8803 selection.reversed = false;
8804 select_next_match_ranges(
8805 self,
8806 selection.start..selection.end,
8807 replace_newest,
8808 autoscroll,
8809 cx,
8810 );
8811 }
8812
8813 if selections.len() == 1 {
8814 let selection = selections
8815 .last()
8816 .expect("ensured that there's only one selection");
8817 let query = buffer
8818 .text_for_range(selection.start..selection.end)
8819 .collect::<String>();
8820 let is_empty = query.is_empty();
8821 let select_state = SelectNextState {
8822 query: AhoCorasick::new(&[query])?,
8823 wordwise: true,
8824 done: is_empty,
8825 };
8826 self.select_next_state = Some(select_state);
8827 } else {
8828 self.select_next_state = None;
8829 }
8830 } else if let Some(selected_text) = selected_text {
8831 self.select_next_state = Some(SelectNextState {
8832 query: AhoCorasick::new(&[selected_text])?,
8833 wordwise: false,
8834 done: false,
8835 });
8836 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8837 }
8838 }
8839 Ok(())
8840 }
8841
8842 pub fn select_all_matches(
8843 &mut self,
8844 _action: &SelectAllMatches,
8845 cx: &mut ViewContext<Self>,
8846 ) -> Result<()> {
8847 self.push_to_selection_history();
8848 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8849
8850 self.select_next_match_internal(&display_map, false, None, cx)?;
8851 let Some(select_next_state) = self.select_next_state.as_mut() else {
8852 return Ok(());
8853 };
8854 if select_next_state.done {
8855 return Ok(());
8856 }
8857
8858 let mut new_selections = self.selections.all::<usize>(cx);
8859
8860 let buffer = &display_map.buffer_snapshot;
8861 let query_matches = select_next_state
8862 .query
8863 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8864
8865 for query_match in query_matches {
8866 let query_match = query_match.unwrap(); // can only fail due to I/O
8867 let offset_range = query_match.start()..query_match.end();
8868 let display_range = offset_range.start.to_display_point(&display_map)
8869 ..offset_range.end.to_display_point(&display_map);
8870
8871 if !select_next_state.wordwise
8872 || (!movement::is_inside_word(&display_map, display_range.start)
8873 && !movement::is_inside_word(&display_map, display_range.end))
8874 {
8875 self.selections.change_with(cx, |selections| {
8876 new_selections.push(Selection {
8877 id: selections.new_selection_id(),
8878 start: offset_range.start,
8879 end: offset_range.end,
8880 reversed: false,
8881 goal: SelectionGoal::None,
8882 });
8883 });
8884 }
8885 }
8886
8887 new_selections.sort_by_key(|selection| selection.start);
8888 let mut ix = 0;
8889 while ix + 1 < new_selections.len() {
8890 let current_selection = &new_selections[ix];
8891 let next_selection = &new_selections[ix + 1];
8892 if current_selection.range().overlaps(&next_selection.range()) {
8893 if current_selection.id < next_selection.id {
8894 new_selections.remove(ix + 1);
8895 } else {
8896 new_selections.remove(ix);
8897 }
8898 } else {
8899 ix += 1;
8900 }
8901 }
8902
8903 select_next_state.done = true;
8904 self.unfold_ranges(
8905 &new_selections
8906 .iter()
8907 .map(|selection| selection.range())
8908 .collect::<Vec<_>>(),
8909 false,
8910 false,
8911 cx,
8912 );
8913 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8914 selections.select(new_selections)
8915 });
8916
8917 Ok(())
8918 }
8919
8920 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8921 self.push_to_selection_history();
8922 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8923 self.select_next_match_internal(
8924 &display_map,
8925 action.replace_newest,
8926 Some(Autoscroll::newest()),
8927 cx,
8928 )?;
8929 Ok(())
8930 }
8931
8932 pub fn select_previous(
8933 &mut self,
8934 action: &SelectPrevious,
8935 cx: &mut ViewContext<Self>,
8936 ) -> Result<()> {
8937 self.push_to_selection_history();
8938 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8939 let buffer = &display_map.buffer_snapshot;
8940 let mut selections = self.selections.all::<usize>(cx);
8941 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8942 let query = &select_prev_state.query;
8943 if !select_prev_state.done {
8944 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8945 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8946 let mut next_selected_range = None;
8947 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8948 let bytes_before_last_selection =
8949 buffer.reversed_bytes_in_range(0..last_selection.start);
8950 let bytes_after_first_selection =
8951 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8952 let query_matches = query
8953 .stream_find_iter(bytes_before_last_selection)
8954 .map(|result| (last_selection.start, result))
8955 .chain(
8956 query
8957 .stream_find_iter(bytes_after_first_selection)
8958 .map(|result| (buffer.len(), result)),
8959 );
8960 for (end_offset, query_match) in query_matches {
8961 let query_match = query_match.unwrap(); // can only fail due to I/O
8962 let offset_range =
8963 end_offset - query_match.end()..end_offset - query_match.start();
8964 let display_range = offset_range.start.to_display_point(&display_map)
8965 ..offset_range.end.to_display_point(&display_map);
8966
8967 if !select_prev_state.wordwise
8968 || (!movement::is_inside_word(&display_map, display_range.start)
8969 && !movement::is_inside_word(&display_map, display_range.end))
8970 {
8971 next_selected_range = Some(offset_range);
8972 break;
8973 }
8974 }
8975
8976 if let Some(next_selected_range) = next_selected_range {
8977 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8978 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8979 if action.replace_newest {
8980 s.delete(s.newest_anchor().id);
8981 }
8982 s.insert_range(next_selected_range);
8983 });
8984 } else {
8985 select_prev_state.done = true;
8986 }
8987 }
8988
8989 self.select_prev_state = Some(select_prev_state);
8990 } else {
8991 let mut only_carets = true;
8992 let mut same_text_selected = true;
8993 let mut selected_text = None;
8994
8995 let mut selections_iter = selections.iter().peekable();
8996 while let Some(selection) = selections_iter.next() {
8997 if selection.start != selection.end {
8998 only_carets = false;
8999 }
9000
9001 if same_text_selected {
9002 if selected_text.is_none() {
9003 selected_text =
9004 Some(buffer.text_for_range(selection.range()).collect::<String>());
9005 }
9006
9007 if let Some(next_selection) = selections_iter.peek() {
9008 if next_selection.range().len() == selection.range().len() {
9009 let next_selected_text = buffer
9010 .text_for_range(next_selection.range())
9011 .collect::<String>();
9012 if Some(next_selected_text) != selected_text {
9013 same_text_selected = false;
9014 selected_text = None;
9015 }
9016 } else {
9017 same_text_selected = false;
9018 selected_text = None;
9019 }
9020 }
9021 }
9022 }
9023
9024 if only_carets {
9025 for selection in &mut selections {
9026 let word_range = movement::surrounding_word(
9027 &display_map,
9028 selection.start.to_display_point(&display_map),
9029 );
9030 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
9031 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
9032 selection.goal = SelectionGoal::None;
9033 selection.reversed = false;
9034 }
9035 if selections.len() == 1 {
9036 let selection = selections
9037 .last()
9038 .expect("ensured that there's only one selection");
9039 let query = buffer
9040 .text_for_range(selection.start..selection.end)
9041 .collect::<String>();
9042 let is_empty = query.is_empty();
9043 let select_state = SelectNextState {
9044 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
9045 wordwise: true,
9046 done: is_empty,
9047 };
9048 self.select_prev_state = Some(select_state);
9049 } else {
9050 self.select_prev_state = None;
9051 }
9052
9053 self.unfold_ranges(
9054 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
9055 false,
9056 true,
9057 cx,
9058 );
9059 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
9060 s.select(selections);
9061 });
9062 } else if let Some(selected_text) = selected_text {
9063 self.select_prev_state = Some(SelectNextState {
9064 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
9065 wordwise: false,
9066 done: false,
9067 });
9068 self.select_previous(action, cx)?;
9069 }
9070 }
9071 Ok(())
9072 }
9073
9074 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
9075 if self.read_only(cx) {
9076 return;
9077 }
9078 let text_layout_details = &self.text_layout_details(cx);
9079 self.transact(cx, |this, cx| {
9080 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
9081 let mut edits = Vec::new();
9082 let mut selection_edit_ranges = Vec::new();
9083 let mut last_toggled_row = None;
9084 let snapshot = this.buffer.read(cx).read(cx);
9085 let empty_str: Arc<str> = Arc::default();
9086 let mut suffixes_inserted = Vec::new();
9087 let ignore_indent = action.ignore_indent;
9088
9089 fn comment_prefix_range(
9090 snapshot: &MultiBufferSnapshot,
9091 row: MultiBufferRow,
9092 comment_prefix: &str,
9093 comment_prefix_whitespace: &str,
9094 ignore_indent: bool,
9095 ) -> Range<Point> {
9096 let indent_size = if ignore_indent {
9097 0
9098 } else {
9099 snapshot.indent_size_for_line(row).len
9100 };
9101
9102 let start = Point::new(row.0, indent_size);
9103
9104 let mut line_bytes = snapshot
9105 .bytes_in_range(start..snapshot.max_point())
9106 .flatten()
9107 .copied();
9108
9109 // If this line currently begins with the line comment prefix, then record
9110 // the range containing the prefix.
9111 if line_bytes
9112 .by_ref()
9113 .take(comment_prefix.len())
9114 .eq(comment_prefix.bytes())
9115 {
9116 // Include any whitespace that matches the comment prefix.
9117 let matching_whitespace_len = line_bytes
9118 .zip(comment_prefix_whitespace.bytes())
9119 .take_while(|(a, b)| a == b)
9120 .count() as u32;
9121 let end = Point::new(
9122 start.row,
9123 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
9124 );
9125 start..end
9126 } else {
9127 start..start
9128 }
9129 }
9130
9131 fn comment_suffix_range(
9132 snapshot: &MultiBufferSnapshot,
9133 row: MultiBufferRow,
9134 comment_suffix: &str,
9135 comment_suffix_has_leading_space: bool,
9136 ) -> Range<Point> {
9137 let end = Point::new(row.0, snapshot.line_len(row));
9138 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9139
9140 let mut line_end_bytes = snapshot
9141 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9142 .flatten()
9143 .copied();
9144
9145 let leading_space_len = if suffix_start_column > 0
9146 && line_end_bytes.next() == Some(b' ')
9147 && comment_suffix_has_leading_space
9148 {
9149 1
9150 } else {
9151 0
9152 };
9153
9154 // If this line currently begins with the line comment prefix, then record
9155 // the range containing the prefix.
9156 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9157 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9158 start..end
9159 } else {
9160 end..end
9161 }
9162 }
9163
9164 // TODO: Handle selections that cross excerpts
9165 for selection in &mut selections {
9166 let start_column = snapshot
9167 .indent_size_for_line(MultiBufferRow(selection.start.row))
9168 .len;
9169 let language = if let Some(language) =
9170 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9171 {
9172 language
9173 } else {
9174 continue;
9175 };
9176
9177 selection_edit_ranges.clear();
9178
9179 // If multiple selections contain a given row, avoid processing that
9180 // row more than once.
9181 let mut start_row = MultiBufferRow(selection.start.row);
9182 if last_toggled_row == Some(start_row) {
9183 start_row = start_row.next_row();
9184 }
9185 let end_row =
9186 if selection.end.row > selection.start.row && selection.end.column == 0 {
9187 MultiBufferRow(selection.end.row - 1)
9188 } else {
9189 MultiBufferRow(selection.end.row)
9190 };
9191 last_toggled_row = Some(end_row);
9192
9193 if start_row > end_row {
9194 continue;
9195 }
9196
9197 // If the language has line comments, toggle those.
9198 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9199
9200 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9201 if ignore_indent {
9202 full_comment_prefixes = full_comment_prefixes
9203 .into_iter()
9204 .map(|s| Arc::from(s.trim_end()))
9205 .collect();
9206 }
9207
9208 if !full_comment_prefixes.is_empty() {
9209 let first_prefix = full_comment_prefixes
9210 .first()
9211 .expect("prefixes is non-empty");
9212 let prefix_trimmed_lengths = full_comment_prefixes
9213 .iter()
9214 .map(|p| p.trim_end_matches(' ').len())
9215 .collect::<SmallVec<[usize; 4]>>();
9216
9217 let mut all_selection_lines_are_comments = true;
9218
9219 for row in start_row.0..=end_row.0 {
9220 let row = MultiBufferRow(row);
9221 if start_row < end_row && snapshot.is_line_blank(row) {
9222 continue;
9223 }
9224
9225 let prefix_range = full_comment_prefixes
9226 .iter()
9227 .zip(prefix_trimmed_lengths.iter().copied())
9228 .map(|(prefix, trimmed_prefix_len)| {
9229 comment_prefix_range(
9230 snapshot.deref(),
9231 row,
9232 &prefix[..trimmed_prefix_len],
9233 &prefix[trimmed_prefix_len..],
9234 ignore_indent,
9235 )
9236 })
9237 .max_by_key(|range| range.end.column - range.start.column)
9238 .expect("prefixes is non-empty");
9239
9240 if prefix_range.is_empty() {
9241 all_selection_lines_are_comments = false;
9242 }
9243
9244 selection_edit_ranges.push(prefix_range);
9245 }
9246
9247 if all_selection_lines_are_comments {
9248 edits.extend(
9249 selection_edit_ranges
9250 .iter()
9251 .cloned()
9252 .map(|range| (range, empty_str.clone())),
9253 );
9254 } else {
9255 let min_column = selection_edit_ranges
9256 .iter()
9257 .map(|range| range.start.column)
9258 .min()
9259 .unwrap_or(0);
9260 edits.extend(selection_edit_ranges.iter().map(|range| {
9261 let position = Point::new(range.start.row, min_column);
9262 (position..position, first_prefix.clone())
9263 }));
9264 }
9265 } else if let Some((full_comment_prefix, comment_suffix)) =
9266 language.block_comment_delimiters()
9267 {
9268 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9269 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9270 let prefix_range = comment_prefix_range(
9271 snapshot.deref(),
9272 start_row,
9273 comment_prefix,
9274 comment_prefix_whitespace,
9275 ignore_indent,
9276 );
9277 let suffix_range = comment_suffix_range(
9278 snapshot.deref(),
9279 end_row,
9280 comment_suffix.trim_start_matches(' '),
9281 comment_suffix.starts_with(' '),
9282 );
9283
9284 if prefix_range.is_empty() || suffix_range.is_empty() {
9285 edits.push((
9286 prefix_range.start..prefix_range.start,
9287 full_comment_prefix.clone(),
9288 ));
9289 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9290 suffixes_inserted.push((end_row, comment_suffix.len()));
9291 } else {
9292 edits.push((prefix_range, empty_str.clone()));
9293 edits.push((suffix_range, empty_str.clone()));
9294 }
9295 } else {
9296 continue;
9297 }
9298 }
9299
9300 drop(snapshot);
9301 this.buffer.update(cx, |buffer, cx| {
9302 buffer.edit(edits, None, cx);
9303 });
9304
9305 // Adjust selections so that they end before any comment suffixes that
9306 // were inserted.
9307 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9308 let mut selections = this.selections.all::<Point>(cx);
9309 let snapshot = this.buffer.read(cx).read(cx);
9310 for selection in &mut selections {
9311 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9312 match row.cmp(&MultiBufferRow(selection.end.row)) {
9313 Ordering::Less => {
9314 suffixes_inserted.next();
9315 continue;
9316 }
9317 Ordering::Greater => break,
9318 Ordering::Equal => {
9319 if selection.end.column == snapshot.line_len(row) {
9320 if selection.is_empty() {
9321 selection.start.column -= suffix_len as u32;
9322 }
9323 selection.end.column -= suffix_len as u32;
9324 }
9325 break;
9326 }
9327 }
9328 }
9329 }
9330
9331 drop(snapshot);
9332 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9333
9334 let selections = this.selections.all::<Point>(cx);
9335 let selections_on_single_row = selections.windows(2).all(|selections| {
9336 selections[0].start.row == selections[1].start.row
9337 && selections[0].end.row == selections[1].end.row
9338 && selections[0].start.row == selections[0].end.row
9339 });
9340 let selections_selecting = selections
9341 .iter()
9342 .any(|selection| selection.start != selection.end);
9343 let advance_downwards = action.advance_downwards
9344 && selections_on_single_row
9345 && !selections_selecting
9346 && !matches!(this.mode, EditorMode::SingleLine { .. });
9347
9348 if advance_downwards {
9349 let snapshot = this.buffer.read(cx).snapshot(cx);
9350
9351 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9352 s.move_cursors_with(|display_snapshot, display_point, _| {
9353 let mut point = display_point.to_point(display_snapshot);
9354 point.row += 1;
9355 point = snapshot.clip_point(point, Bias::Left);
9356 let display_point = point.to_display_point(display_snapshot);
9357 let goal = SelectionGoal::HorizontalPosition(
9358 display_snapshot
9359 .x_for_display_point(display_point, text_layout_details)
9360 .into(),
9361 );
9362 (display_point, goal)
9363 })
9364 });
9365 }
9366 });
9367 }
9368
9369 pub fn select_enclosing_symbol(
9370 &mut self,
9371 _: &SelectEnclosingSymbol,
9372 cx: &mut ViewContext<Self>,
9373 ) {
9374 let buffer = self.buffer.read(cx).snapshot(cx);
9375 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9376
9377 fn update_selection(
9378 selection: &Selection<usize>,
9379 buffer_snap: &MultiBufferSnapshot,
9380 ) -> Option<Selection<usize>> {
9381 let cursor = selection.head();
9382 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9383 for symbol in symbols.iter().rev() {
9384 let start = symbol.range.start.to_offset(buffer_snap);
9385 let end = symbol.range.end.to_offset(buffer_snap);
9386 let new_range = start..end;
9387 if start < selection.start || end > selection.end {
9388 return Some(Selection {
9389 id: selection.id,
9390 start: new_range.start,
9391 end: new_range.end,
9392 goal: SelectionGoal::None,
9393 reversed: selection.reversed,
9394 });
9395 }
9396 }
9397 None
9398 }
9399
9400 let mut selected_larger_symbol = false;
9401 let new_selections = old_selections
9402 .iter()
9403 .map(|selection| match update_selection(selection, &buffer) {
9404 Some(new_selection) => {
9405 if new_selection.range() != selection.range() {
9406 selected_larger_symbol = true;
9407 }
9408 new_selection
9409 }
9410 None => selection.clone(),
9411 })
9412 .collect::<Vec<_>>();
9413
9414 if selected_larger_symbol {
9415 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9416 s.select(new_selections);
9417 });
9418 }
9419 }
9420
9421 pub fn select_larger_syntax_node(
9422 &mut self,
9423 _: &SelectLargerSyntaxNode,
9424 cx: &mut ViewContext<Self>,
9425 ) {
9426 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9427 let buffer = self.buffer.read(cx).snapshot(cx);
9428 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9429
9430 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9431 let mut selected_larger_node = false;
9432 let new_selections = old_selections
9433 .iter()
9434 .map(|selection| {
9435 let old_range = selection.start..selection.end;
9436 let mut new_range = old_range.clone();
9437 while let Some(containing_range) =
9438 buffer.range_for_syntax_ancestor(new_range.clone())
9439 {
9440 new_range = containing_range;
9441 if !display_map.intersects_fold(new_range.start)
9442 && !display_map.intersects_fold(new_range.end)
9443 {
9444 break;
9445 }
9446 }
9447
9448 selected_larger_node |= new_range != old_range;
9449 Selection {
9450 id: selection.id,
9451 start: new_range.start,
9452 end: new_range.end,
9453 goal: SelectionGoal::None,
9454 reversed: selection.reversed,
9455 }
9456 })
9457 .collect::<Vec<_>>();
9458
9459 if selected_larger_node {
9460 stack.push(old_selections);
9461 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9462 s.select(new_selections);
9463 });
9464 }
9465 self.select_larger_syntax_node_stack = stack;
9466 }
9467
9468 pub fn select_smaller_syntax_node(
9469 &mut self,
9470 _: &SelectSmallerSyntaxNode,
9471 cx: &mut ViewContext<Self>,
9472 ) {
9473 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9474 if let Some(selections) = stack.pop() {
9475 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9476 s.select(selections.to_vec());
9477 });
9478 }
9479 self.select_larger_syntax_node_stack = stack;
9480 }
9481
9482 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9483 if !EditorSettings::get_global(cx).gutter.runnables {
9484 self.clear_tasks();
9485 return Task::ready(());
9486 }
9487 let project = self.project.as_ref().map(Model::downgrade);
9488 cx.spawn(|this, mut cx| async move {
9489 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9490 let Some(project) = project.and_then(|p| p.upgrade()) else {
9491 return;
9492 };
9493 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9494 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9495 }) else {
9496 return;
9497 };
9498
9499 let hide_runnables = project
9500 .update(&mut cx, |project, cx| {
9501 // Do not display any test indicators in non-dev server remote projects.
9502 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9503 })
9504 .unwrap_or(true);
9505 if hide_runnables {
9506 return;
9507 }
9508 let new_rows =
9509 cx.background_executor()
9510 .spawn({
9511 let snapshot = display_snapshot.clone();
9512 async move {
9513 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9514 }
9515 })
9516 .await;
9517 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9518
9519 this.update(&mut cx, |this, _| {
9520 this.clear_tasks();
9521 for (key, value) in rows {
9522 this.insert_tasks(key, value);
9523 }
9524 })
9525 .ok();
9526 })
9527 }
9528 fn fetch_runnable_ranges(
9529 snapshot: &DisplaySnapshot,
9530 range: Range<Anchor>,
9531 ) -> Vec<language::RunnableRange> {
9532 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9533 }
9534
9535 fn runnable_rows(
9536 project: Model<Project>,
9537 snapshot: DisplaySnapshot,
9538 runnable_ranges: Vec<RunnableRange>,
9539 mut cx: AsyncWindowContext,
9540 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9541 runnable_ranges
9542 .into_iter()
9543 .filter_map(|mut runnable| {
9544 let tasks = cx
9545 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9546 .ok()?;
9547 if tasks.is_empty() {
9548 return None;
9549 }
9550
9551 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9552
9553 let row = snapshot
9554 .buffer_snapshot
9555 .buffer_line_for_row(MultiBufferRow(point.row))?
9556 .1
9557 .start
9558 .row;
9559
9560 let context_range =
9561 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9562 Some((
9563 (runnable.buffer_id, row),
9564 RunnableTasks {
9565 templates: tasks,
9566 offset: MultiBufferOffset(runnable.run_range.start),
9567 context_range,
9568 column: point.column,
9569 extra_variables: runnable.extra_captures,
9570 },
9571 ))
9572 })
9573 .collect()
9574 }
9575
9576 fn templates_with_tags(
9577 project: &Model<Project>,
9578 runnable: &mut Runnable,
9579 cx: &WindowContext<'_>,
9580 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9581 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9582 let (worktree_id, file) = project
9583 .buffer_for_id(runnable.buffer, cx)
9584 .and_then(|buffer| buffer.read(cx).file())
9585 .map(|file| (file.worktree_id(cx), file.clone()))
9586 .unzip();
9587
9588 (
9589 project.task_store().read(cx).task_inventory().cloned(),
9590 worktree_id,
9591 file,
9592 )
9593 });
9594
9595 let tags = mem::take(&mut runnable.tags);
9596 let mut tags: Vec<_> = tags
9597 .into_iter()
9598 .flat_map(|tag| {
9599 let tag = tag.0.clone();
9600 inventory
9601 .as_ref()
9602 .into_iter()
9603 .flat_map(|inventory| {
9604 inventory.read(cx).list_tasks(
9605 file.clone(),
9606 Some(runnable.language.clone()),
9607 worktree_id,
9608 cx,
9609 )
9610 })
9611 .filter(move |(_, template)| {
9612 template.tags.iter().any(|source_tag| source_tag == &tag)
9613 })
9614 })
9615 .sorted_by_key(|(kind, _)| kind.to_owned())
9616 .collect();
9617 if let Some((leading_tag_source, _)) = tags.first() {
9618 // Strongest source wins; if we have worktree tag binding, prefer that to
9619 // global and language bindings;
9620 // if we have a global binding, prefer that to language binding.
9621 let first_mismatch = tags
9622 .iter()
9623 .position(|(tag_source, _)| tag_source != leading_tag_source);
9624 if let Some(index) = first_mismatch {
9625 tags.truncate(index);
9626 }
9627 }
9628
9629 tags
9630 }
9631
9632 pub fn move_to_enclosing_bracket(
9633 &mut self,
9634 _: &MoveToEnclosingBracket,
9635 cx: &mut ViewContext<Self>,
9636 ) {
9637 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9638 s.move_offsets_with(|snapshot, selection| {
9639 let Some(enclosing_bracket_ranges) =
9640 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9641 else {
9642 return;
9643 };
9644
9645 let mut best_length = usize::MAX;
9646 let mut best_inside = false;
9647 let mut best_in_bracket_range = false;
9648 let mut best_destination = None;
9649 for (open, close) in enclosing_bracket_ranges {
9650 let close = close.to_inclusive();
9651 let length = close.end() - open.start;
9652 let inside = selection.start >= open.end && selection.end <= *close.start();
9653 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9654 || close.contains(&selection.head());
9655
9656 // If best is next to a bracket and current isn't, skip
9657 if !in_bracket_range && best_in_bracket_range {
9658 continue;
9659 }
9660
9661 // Prefer smaller lengths unless best is inside and current isn't
9662 if length > best_length && (best_inside || !inside) {
9663 continue;
9664 }
9665
9666 best_length = length;
9667 best_inside = inside;
9668 best_in_bracket_range = in_bracket_range;
9669 best_destination = Some(
9670 if close.contains(&selection.start) && close.contains(&selection.end) {
9671 if inside {
9672 open.end
9673 } else {
9674 open.start
9675 }
9676 } else if inside {
9677 *close.start()
9678 } else {
9679 *close.end()
9680 },
9681 );
9682 }
9683
9684 if let Some(destination) = best_destination {
9685 selection.collapse_to(destination, SelectionGoal::None);
9686 }
9687 })
9688 });
9689 }
9690
9691 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9692 self.end_selection(cx);
9693 self.selection_history.mode = SelectionHistoryMode::Undoing;
9694 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9695 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9696 self.select_next_state = entry.select_next_state;
9697 self.select_prev_state = entry.select_prev_state;
9698 self.add_selections_state = entry.add_selections_state;
9699 self.request_autoscroll(Autoscroll::newest(), cx);
9700 }
9701 self.selection_history.mode = SelectionHistoryMode::Normal;
9702 }
9703
9704 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9705 self.end_selection(cx);
9706 self.selection_history.mode = SelectionHistoryMode::Redoing;
9707 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9708 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9709 self.select_next_state = entry.select_next_state;
9710 self.select_prev_state = entry.select_prev_state;
9711 self.add_selections_state = entry.add_selections_state;
9712 self.request_autoscroll(Autoscroll::newest(), cx);
9713 }
9714 self.selection_history.mode = SelectionHistoryMode::Normal;
9715 }
9716
9717 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9718 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9719 }
9720
9721 pub fn expand_excerpts_down(
9722 &mut self,
9723 action: &ExpandExcerptsDown,
9724 cx: &mut ViewContext<Self>,
9725 ) {
9726 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9727 }
9728
9729 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9730 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9731 }
9732
9733 pub fn expand_excerpts_for_direction(
9734 &mut self,
9735 lines: u32,
9736 direction: ExpandExcerptDirection,
9737 cx: &mut ViewContext<Self>,
9738 ) {
9739 let selections = self.selections.disjoint_anchors();
9740
9741 let lines = if lines == 0 {
9742 EditorSettings::get_global(cx).expand_excerpt_lines
9743 } else {
9744 lines
9745 };
9746
9747 self.buffer.update(cx, |buffer, cx| {
9748 buffer.expand_excerpts(
9749 selections
9750 .iter()
9751 .map(|selection| selection.head().excerpt_id)
9752 .dedup(),
9753 lines,
9754 direction,
9755 cx,
9756 )
9757 })
9758 }
9759
9760 pub fn expand_excerpt(
9761 &mut self,
9762 excerpt: ExcerptId,
9763 direction: ExpandExcerptDirection,
9764 cx: &mut ViewContext<Self>,
9765 ) {
9766 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9767 self.buffer.update(cx, |buffer, cx| {
9768 buffer.expand_excerpts([excerpt], lines, direction, cx)
9769 })
9770 }
9771
9772 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9773 self.go_to_diagnostic_impl(Direction::Next, cx)
9774 }
9775
9776 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9777 self.go_to_diagnostic_impl(Direction::Prev, cx)
9778 }
9779
9780 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9781 let buffer = self.buffer.read(cx).snapshot(cx);
9782 let selection = self.selections.newest::<usize>(cx);
9783
9784 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9785 if direction == Direction::Next {
9786 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9787 let (group_id, jump_to) = popover.activation_info();
9788 if self.activate_diagnostics(group_id, cx) {
9789 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9790 let mut new_selection = s.newest_anchor().clone();
9791 new_selection.collapse_to(jump_to, SelectionGoal::None);
9792 s.select_anchors(vec![new_selection.clone()]);
9793 });
9794 }
9795 return;
9796 }
9797 }
9798
9799 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9800 active_diagnostics
9801 .primary_range
9802 .to_offset(&buffer)
9803 .to_inclusive()
9804 });
9805 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9806 if active_primary_range.contains(&selection.head()) {
9807 *active_primary_range.start()
9808 } else {
9809 selection.head()
9810 }
9811 } else {
9812 selection.head()
9813 };
9814 let snapshot = self.snapshot(cx);
9815 loop {
9816 let diagnostics = if direction == Direction::Prev {
9817 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9818 } else {
9819 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9820 }
9821 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9822 let group = diagnostics
9823 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9824 // be sorted in a stable way
9825 // skip until we are at current active diagnostic, if it exists
9826 .skip_while(|entry| {
9827 (match direction {
9828 Direction::Prev => entry.range.start >= search_start,
9829 Direction::Next => entry.range.start <= search_start,
9830 }) && self
9831 .active_diagnostics
9832 .as_ref()
9833 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9834 })
9835 .find_map(|entry| {
9836 if entry.diagnostic.is_primary
9837 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9838 && !entry.range.is_empty()
9839 // if we match with the active diagnostic, skip it
9840 && Some(entry.diagnostic.group_id)
9841 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9842 {
9843 Some((entry.range, entry.diagnostic.group_id))
9844 } else {
9845 None
9846 }
9847 });
9848
9849 if let Some((primary_range, group_id)) = group {
9850 if self.activate_diagnostics(group_id, cx) {
9851 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9852 s.select(vec![Selection {
9853 id: selection.id,
9854 start: primary_range.start,
9855 end: primary_range.start,
9856 reversed: false,
9857 goal: SelectionGoal::None,
9858 }]);
9859 });
9860 }
9861 break;
9862 } else {
9863 // Cycle around to the start of the buffer, potentially moving back to the start of
9864 // the currently active diagnostic.
9865 active_primary_range.take();
9866 if direction == Direction::Prev {
9867 if search_start == buffer.len() {
9868 break;
9869 } else {
9870 search_start = buffer.len();
9871 }
9872 } else if search_start == 0 {
9873 break;
9874 } else {
9875 search_start = 0;
9876 }
9877 }
9878 }
9879 }
9880
9881 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9882 let snapshot = self.snapshot(cx);
9883 let selection = self.selections.newest::<Point>(cx);
9884 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9885 }
9886
9887 fn go_to_hunk_after_position(
9888 &mut self,
9889 snapshot: &EditorSnapshot,
9890 position: Point,
9891 cx: &mut ViewContext<'_, Editor>,
9892 ) -> Option<MultiBufferDiffHunk> {
9893 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9894 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9895 snapshot,
9896 position,
9897 ix > 0,
9898 snapshot.diff_map.diff_hunks_in_range(
9899 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9900 &snapshot.buffer_snapshot,
9901 ),
9902 cx,
9903 ) {
9904 return Some(hunk);
9905 }
9906 }
9907 None
9908 }
9909
9910 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9911 let snapshot = self.snapshot(cx);
9912 let selection = self.selections.newest::<Point>(cx);
9913 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9914 }
9915
9916 fn go_to_hunk_before_position(
9917 &mut self,
9918 snapshot: &EditorSnapshot,
9919 position: Point,
9920 cx: &mut ViewContext<'_, Editor>,
9921 ) -> Option<MultiBufferDiffHunk> {
9922 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9923 .into_iter()
9924 .enumerate()
9925 {
9926 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9927 snapshot,
9928 position,
9929 ix > 0,
9930 snapshot
9931 .diff_map
9932 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9933 cx,
9934 ) {
9935 return Some(hunk);
9936 }
9937 }
9938 None
9939 }
9940
9941 fn go_to_next_hunk_in_direction(
9942 &mut self,
9943 snapshot: &DisplaySnapshot,
9944 initial_point: Point,
9945 is_wrapped: bool,
9946 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9947 cx: &mut ViewContext<Editor>,
9948 ) -> Option<MultiBufferDiffHunk> {
9949 let display_point = initial_point.to_display_point(snapshot);
9950 let mut hunks = hunks
9951 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9952 .filter(|(display_hunk, _)| {
9953 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9954 })
9955 .dedup();
9956
9957 if let Some((display_hunk, hunk)) = hunks.next() {
9958 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9959 let row = display_hunk.start_display_row();
9960 let point = DisplayPoint::new(row, 0);
9961 s.select_display_ranges([point..point]);
9962 });
9963
9964 Some(hunk)
9965 } else {
9966 None
9967 }
9968 }
9969
9970 pub fn go_to_definition(
9971 &mut self,
9972 _: &GoToDefinition,
9973 cx: &mut ViewContext<Self>,
9974 ) -> Task<Result<Navigated>> {
9975 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9976 cx.spawn(|editor, mut cx| async move {
9977 if definition.await? == Navigated::Yes {
9978 return Ok(Navigated::Yes);
9979 }
9980 match editor.update(&mut cx, |editor, cx| {
9981 editor.find_all_references(&FindAllReferences, cx)
9982 })? {
9983 Some(references) => references.await,
9984 None => Ok(Navigated::No),
9985 }
9986 })
9987 }
9988
9989 pub fn go_to_declaration(
9990 &mut self,
9991 _: &GoToDeclaration,
9992 cx: &mut ViewContext<Self>,
9993 ) -> Task<Result<Navigated>> {
9994 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9995 }
9996
9997 pub fn go_to_declaration_split(
9998 &mut self,
9999 _: &GoToDeclaration,
10000 cx: &mut ViewContext<Self>,
10001 ) -> Task<Result<Navigated>> {
10002 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
10003 }
10004
10005 pub fn go_to_implementation(
10006 &mut self,
10007 _: &GoToImplementation,
10008 cx: &mut ViewContext<Self>,
10009 ) -> Task<Result<Navigated>> {
10010 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
10011 }
10012
10013 pub fn go_to_implementation_split(
10014 &mut self,
10015 _: &GoToImplementationSplit,
10016 cx: &mut ViewContext<Self>,
10017 ) -> Task<Result<Navigated>> {
10018 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
10019 }
10020
10021 pub fn go_to_type_definition(
10022 &mut self,
10023 _: &GoToTypeDefinition,
10024 cx: &mut ViewContext<Self>,
10025 ) -> Task<Result<Navigated>> {
10026 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
10027 }
10028
10029 pub fn go_to_definition_split(
10030 &mut self,
10031 _: &GoToDefinitionSplit,
10032 cx: &mut ViewContext<Self>,
10033 ) -> Task<Result<Navigated>> {
10034 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
10035 }
10036
10037 pub fn go_to_type_definition_split(
10038 &mut self,
10039 _: &GoToTypeDefinitionSplit,
10040 cx: &mut ViewContext<Self>,
10041 ) -> Task<Result<Navigated>> {
10042 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
10043 }
10044
10045 fn go_to_definition_of_kind(
10046 &mut self,
10047 kind: GotoDefinitionKind,
10048 split: bool,
10049 cx: &mut ViewContext<Self>,
10050 ) -> Task<Result<Navigated>> {
10051 let Some(provider) = self.semantics_provider.clone() else {
10052 return Task::ready(Ok(Navigated::No));
10053 };
10054 let head = self.selections.newest::<usize>(cx).head();
10055 let buffer = self.buffer.read(cx);
10056 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
10057 text_anchor
10058 } else {
10059 return Task::ready(Ok(Navigated::No));
10060 };
10061
10062 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
10063 return Task::ready(Ok(Navigated::No));
10064 };
10065
10066 cx.spawn(|editor, mut cx| async move {
10067 let definitions = definitions.await?;
10068 let navigated = editor
10069 .update(&mut cx, |editor, cx| {
10070 editor.navigate_to_hover_links(
10071 Some(kind),
10072 definitions
10073 .into_iter()
10074 .filter(|location| {
10075 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
10076 })
10077 .map(HoverLink::Text)
10078 .collect::<Vec<_>>(),
10079 split,
10080 cx,
10081 )
10082 })?
10083 .await?;
10084 anyhow::Ok(navigated)
10085 })
10086 }
10087
10088 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
10089 let position = self.selections.newest_anchor().head();
10090 let Some((buffer, buffer_position)) =
10091 self.buffer.read(cx).text_anchor_for_position(position, cx)
10092 else {
10093 return;
10094 };
10095
10096 cx.spawn(|editor, mut cx| async move {
10097 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
10098 editor.update(&mut cx, |_, cx| {
10099 cx.open_url(&url);
10100 })
10101 } else {
10102 Ok(())
10103 }
10104 })
10105 .detach();
10106 }
10107
10108 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
10109 let Some(workspace) = self.workspace() else {
10110 return;
10111 };
10112
10113 let position = self.selections.newest_anchor().head();
10114
10115 let Some((buffer, buffer_position)) =
10116 self.buffer.read(cx).text_anchor_for_position(position, cx)
10117 else {
10118 return;
10119 };
10120
10121 let project = self.project.clone();
10122
10123 cx.spawn(|_, mut cx| async move {
10124 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10125
10126 if let Some((_, path)) = result {
10127 workspace
10128 .update(&mut cx, |workspace, cx| {
10129 workspace.open_resolved_path(path, cx)
10130 })?
10131 .await?;
10132 }
10133 anyhow::Ok(())
10134 })
10135 .detach();
10136 }
10137
10138 pub(crate) fn navigate_to_hover_links(
10139 &mut self,
10140 kind: Option<GotoDefinitionKind>,
10141 mut definitions: Vec<HoverLink>,
10142 split: bool,
10143 cx: &mut ViewContext<Editor>,
10144 ) -> Task<Result<Navigated>> {
10145 // If there is one definition, just open it directly
10146 if definitions.len() == 1 {
10147 let definition = definitions.pop().unwrap();
10148
10149 enum TargetTaskResult {
10150 Location(Option<Location>),
10151 AlreadyNavigated,
10152 }
10153
10154 let target_task = match definition {
10155 HoverLink::Text(link) => {
10156 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10157 }
10158 HoverLink::InlayHint(lsp_location, server_id) => {
10159 let computation = self.compute_target_location(lsp_location, server_id, cx);
10160 cx.background_executor().spawn(async move {
10161 let location = computation.await?;
10162 Ok(TargetTaskResult::Location(location))
10163 })
10164 }
10165 HoverLink::Url(url) => {
10166 cx.open_url(&url);
10167 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10168 }
10169 HoverLink::File(path) => {
10170 if let Some(workspace) = self.workspace() {
10171 cx.spawn(|_, mut cx| async move {
10172 workspace
10173 .update(&mut cx, |workspace, cx| {
10174 workspace.open_resolved_path(path, cx)
10175 })?
10176 .await
10177 .map(|_| TargetTaskResult::AlreadyNavigated)
10178 })
10179 } else {
10180 Task::ready(Ok(TargetTaskResult::Location(None)))
10181 }
10182 }
10183 };
10184 cx.spawn(|editor, mut cx| async move {
10185 let target = match target_task.await.context("target resolution task")? {
10186 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10187 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10188 TargetTaskResult::Location(Some(target)) => target,
10189 };
10190
10191 editor.update(&mut cx, |editor, cx| {
10192 let Some(workspace) = editor.workspace() else {
10193 return Navigated::No;
10194 };
10195 let pane = workspace.read(cx).active_pane().clone();
10196
10197 let range = target.range.to_offset(target.buffer.read(cx));
10198 let range = editor.range_for_match(&range);
10199
10200 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10201 let buffer = target.buffer.read(cx);
10202 let range = check_multiline_range(buffer, range);
10203 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10204 s.select_ranges([range]);
10205 });
10206 } else {
10207 cx.window_context().defer(move |cx| {
10208 let target_editor: View<Self> =
10209 workspace.update(cx, |workspace, cx| {
10210 let pane = if split {
10211 workspace.adjacent_pane(cx)
10212 } else {
10213 workspace.active_pane().clone()
10214 };
10215
10216 workspace.open_project_item(
10217 pane,
10218 target.buffer.clone(),
10219 true,
10220 true,
10221 cx,
10222 )
10223 });
10224 target_editor.update(cx, |target_editor, cx| {
10225 // When selecting a definition in a different buffer, disable the nav history
10226 // to avoid creating a history entry at the previous cursor location.
10227 pane.update(cx, |pane, _| pane.disable_history());
10228 let buffer = target.buffer.read(cx);
10229 let range = check_multiline_range(buffer, range);
10230 target_editor.change_selections(
10231 Some(Autoscroll::focused()),
10232 cx,
10233 |s| {
10234 s.select_ranges([range]);
10235 },
10236 );
10237 pane.update(cx, |pane, _| pane.enable_history());
10238 });
10239 });
10240 }
10241 Navigated::Yes
10242 })
10243 })
10244 } else if !definitions.is_empty() {
10245 cx.spawn(|editor, mut cx| async move {
10246 let (title, location_tasks, workspace) = editor
10247 .update(&mut cx, |editor, cx| {
10248 let tab_kind = match kind {
10249 Some(GotoDefinitionKind::Implementation) => "Implementations",
10250 _ => "Definitions",
10251 };
10252 let title = definitions
10253 .iter()
10254 .find_map(|definition| match definition {
10255 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10256 let buffer = origin.buffer.read(cx);
10257 format!(
10258 "{} for {}",
10259 tab_kind,
10260 buffer
10261 .text_for_range(origin.range.clone())
10262 .collect::<String>()
10263 )
10264 }),
10265 HoverLink::InlayHint(_, _) => None,
10266 HoverLink::Url(_) => None,
10267 HoverLink::File(_) => None,
10268 })
10269 .unwrap_or(tab_kind.to_string());
10270 let location_tasks = definitions
10271 .into_iter()
10272 .map(|definition| match definition {
10273 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10274 HoverLink::InlayHint(lsp_location, server_id) => {
10275 editor.compute_target_location(lsp_location, server_id, cx)
10276 }
10277 HoverLink::Url(_) => Task::ready(Ok(None)),
10278 HoverLink::File(_) => Task::ready(Ok(None)),
10279 })
10280 .collect::<Vec<_>>();
10281 (title, location_tasks, editor.workspace().clone())
10282 })
10283 .context("location tasks preparation")?;
10284
10285 let locations = future::join_all(location_tasks)
10286 .await
10287 .into_iter()
10288 .filter_map(|location| location.transpose())
10289 .collect::<Result<_>>()
10290 .context("location tasks")?;
10291
10292 let Some(workspace) = workspace else {
10293 return Ok(Navigated::No);
10294 };
10295 let opened = workspace
10296 .update(&mut cx, |workspace, cx| {
10297 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10298 })
10299 .ok();
10300
10301 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10302 })
10303 } else {
10304 Task::ready(Ok(Navigated::No))
10305 }
10306 }
10307
10308 fn compute_target_location(
10309 &self,
10310 lsp_location: lsp::Location,
10311 server_id: LanguageServerId,
10312 cx: &mut ViewContext<Self>,
10313 ) -> Task<anyhow::Result<Option<Location>>> {
10314 let Some(project) = self.project.clone() else {
10315 return Task::Ready(Some(Ok(None)));
10316 };
10317
10318 cx.spawn(move |editor, mut cx| async move {
10319 let location_task = editor.update(&mut cx, |_, cx| {
10320 project.update(cx, |project, cx| {
10321 let language_server_name = project
10322 .language_server_statuses(cx)
10323 .find(|(id, _)| server_id == *id)
10324 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10325 language_server_name.map(|language_server_name| {
10326 project.open_local_buffer_via_lsp(
10327 lsp_location.uri.clone(),
10328 server_id,
10329 language_server_name,
10330 cx,
10331 )
10332 })
10333 })
10334 })?;
10335 let location = match location_task {
10336 Some(task) => Some({
10337 let target_buffer_handle = task.await.context("open local buffer")?;
10338 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10339 let target_start = target_buffer
10340 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10341 let target_end = target_buffer
10342 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10343 target_buffer.anchor_after(target_start)
10344 ..target_buffer.anchor_before(target_end)
10345 })?;
10346 Location {
10347 buffer: target_buffer_handle,
10348 range,
10349 }
10350 }),
10351 None => None,
10352 };
10353 Ok(location)
10354 })
10355 }
10356
10357 pub fn find_all_references(
10358 &mut self,
10359 _: &FindAllReferences,
10360 cx: &mut ViewContext<Self>,
10361 ) -> Option<Task<Result<Navigated>>> {
10362 let selection = self.selections.newest::<usize>(cx);
10363 let multi_buffer = self.buffer.read(cx);
10364 let head = selection.head();
10365
10366 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10367 let head_anchor = multi_buffer_snapshot.anchor_at(
10368 head,
10369 if head < selection.tail() {
10370 Bias::Right
10371 } else {
10372 Bias::Left
10373 },
10374 );
10375
10376 match self
10377 .find_all_references_task_sources
10378 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10379 {
10380 Ok(_) => {
10381 log::info!(
10382 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10383 );
10384 return None;
10385 }
10386 Err(i) => {
10387 self.find_all_references_task_sources.insert(i, head_anchor);
10388 }
10389 }
10390
10391 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10392 let workspace = self.workspace()?;
10393 let project = workspace.read(cx).project().clone();
10394 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10395 Some(cx.spawn(|editor, mut cx| async move {
10396 let _cleanup = defer({
10397 let mut cx = cx.clone();
10398 move || {
10399 let _ = editor.update(&mut cx, |editor, _| {
10400 if let Ok(i) =
10401 editor
10402 .find_all_references_task_sources
10403 .binary_search_by(|anchor| {
10404 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10405 })
10406 {
10407 editor.find_all_references_task_sources.remove(i);
10408 }
10409 });
10410 }
10411 });
10412
10413 let locations = references.await?;
10414 if locations.is_empty() {
10415 return anyhow::Ok(Navigated::No);
10416 }
10417
10418 workspace.update(&mut cx, |workspace, cx| {
10419 let title = locations
10420 .first()
10421 .as_ref()
10422 .map(|location| {
10423 let buffer = location.buffer.read(cx);
10424 format!(
10425 "References to `{}`",
10426 buffer
10427 .text_for_range(location.range.clone())
10428 .collect::<String>()
10429 )
10430 })
10431 .unwrap();
10432 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10433 Navigated::Yes
10434 })
10435 }))
10436 }
10437
10438 /// Opens a multibuffer with the given project locations in it
10439 pub fn open_locations_in_multibuffer(
10440 workspace: &mut Workspace,
10441 mut locations: Vec<Location>,
10442 title: String,
10443 split: bool,
10444 cx: &mut ViewContext<Workspace>,
10445 ) {
10446 // If there are multiple definitions, open them in a multibuffer
10447 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10448 let mut locations = locations.into_iter().peekable();
10449 let mut ranges_to_highlight = Vec::new();
10450 let capability = workspace.project().read(cx).capability();
10451
10452 let excerpt_buffer = cx.new_model(|cx| {
10453 let mut multibuffer = MultiBuffer::new(capability);
10454 while let Some(location) = locations.next() {
10455 let buffer = location.buffer.read(cx);
10456 let mut ranges_for_buffer = Vec::new();
10457 let range = location.range.to_offset(buffer);
10458 ranges_for_buffer.push(range.clone());
10459
10460 while let Some(next_location) = locations.peek() {
10461 if next_location.buffer == location.buffer {
10462 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10463 locations.next();
10464 } else {
10465 break;
10466 }
10467 }
10468
10469 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10470 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10471 location.buffer.clone(),
10472 ranges_for_buffer,
10473 DEFAULT_MULTIBUFFER_CONTEXT,
10474 cx,
10475 ))
10476 }
10477
10478 multibuffer.with_title(title)
10479 });
10480
10481 let editor = cx.new_view(|cx| {
10482 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10483 });
10484 editor.update(cx, |editor, cx| {
10485 if let Some(first_range) = ranges_to_highlight.first() {
10486 editor.change_selections(None, cx, |selections| {
10487 selections.clear_disjoint();
10488 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10489 });
10490 }
10491 editor.highlight_background::<Self>(
10492 &ranges_to_highlight,
10493 |theme| theme.editor_highlighted_line_background,
10494 cx,
10495 );
10496 });
10497
10498 let item = Box::new(editor);
10499 let item_id = item.item_id();
10500
10501 if split {
10502 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10503 } else {
10504 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10505 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10506 pane.close_current_preview_item(cx)
10507 } else {
10508 None
10509 }
10510 });
10511 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10512 }
10513 workspace.active_pane().update(cx, |pane, cx| {
10514 pane.set_preview_item_id(Some(item_id), cx);
10515 });
10516 }
10517
10518 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10519 use language::ToOffset as _;
10520
10521 let provider = self.semantics_provider.clone()?;
10522 let selection = self.selections.newest_anchor().clone();
10523 let (cursor_buffer, cursor_buffer_position) = self
10524 .buffer
10525 .read(cx)
10526 .text_anchor_for_position(selection.head(), cx)?;
10527 let (tail_buffer, cursor_buffer_position_end) = self
10528 .buffer
10529 .read(cx)
10530 .text_anchor_for_position(selection.tail(), cx)?;
10531 if tail_buffer != cursor_buffer {
10532 return None;
10533 }
10534
10535 let snapshot = cursor_buffer.read(cx).snapshot();
10536 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10537 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10538 let prepare_rename = provider
10539 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10540 .unwrap_or_else(|| Task::ready(Ok(None)));
10541 drop(snapshot);
10542
10543 Some(cx.spawn(|this, mut cx| async move {
10544 let rename_range = if let Some(range) = prepare_rename.await? {
10545 Some(range)
10546 } else {
10547 this.update(&mut cx, |this, cx| {
10548 let buffer = this.buffer.read(cx).snapshot(cx);
10549 let mut buffer_highlights = this
10550 .document_highlights_for_position(selection.head(), &buffer)
10551 .filter(|highlight| {
10552 highlight.start.excerpt_id == selection.head().excerpt_id
10553 && highlight.end.excerpt_id == selection.head().excerpt_id
10554 });
10555 buffer_highlights
10556 .next()
10557 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10558 })?
10559 };
10560 if let Some(rename_range) = rename_range {
10561 this.update(&mut cx, |this, cx| {
10562 let snapshot = cursor_buffer.read(cx).snapshot();
10563 let rename_buffer_range = rename_range.to_offset(&snapshot);
10564 let cursor_offset_in_rename_range =
10565 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10566 let cursor_offset_in_rename_range_end =
10567 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10568
10569 this.take_rename(false, cx);
10570 let buffer = this.buffer.read(cx).read(cx);
10571 let cursor_offset = selection.head().to_offset(&buffer);
10572 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10573 let rename_end = rename_start + rename_buffer_range.len();
10574 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10575 let mut old_highlight_id = None;
10576 let old_name: Arc<str> = buffer
10577 .chunks(rename_start..rename_end, true)
10578 .map(|chunk| {
10579 if old_highlight_id.is_none() {
10580 old_highlight_id = chunk.syntax_highlight_id;
10581 }
10582 chunk.text
10583 })
10584 .collect::<String>()
10585 .into();
10586
10587 drop(buffer);
10588
10589 // Position the selection in the rename editor so that it matches the current selection.
10590 this.show_local_selections = false;
10591 let rename_editor = cx.new_view(|cx| {
10592 let mut editor = Editor::single_line(cx);
10593 editor.buffer.update(cx, |buffer, cx| {
10594 buffer.edit([(0..0, old_name.clone())], None, cx)
10595 });
10596 let rename_selection_range = match cursor_offset_in_rename_range
10597 .cmp(&cursor_offset_in_rename_range_end)
10598 {
10599 Ordering::Equal => {
10600 editor.select_all(&SelectAll, cx);
10601 return editor;
10602 }
10603 Ordering::Less => {
10604 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10605 }
10606 Ordering::Greater => {
10607 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10608 }
10609 };
10610 if rename_selection_range.end > old_name.len() {
10611 editor.select_all(&SelectAll, cx);
10612 } else {
10613 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10614 s.select_ranges([rename_selection_range]);
10615 });
10616 }
10617 editor
10618 });
10619 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10620 if e == &EditorEvent::Focused {
10621 cx.emit(EditorEvent::FocusedIn)
10622 }
10623 })
10624 .detach();
10625
10626 let write_highlights =
10627 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10628 let read_highlights =
10629 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10630 let ranges = write_highlights
10631 .iter()
10632 .flat_map(|(_, ranges)| ranges.iter())
10633 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10634 .cloned()
10635 .collect();
10636
10637 this.highlight_text::<Rename>(
10638 ranges,
10639 HighlightStyle {
10640 fade_out: Some(0.6),
10641 ..Default::default()
10642 },
10643 cx,
10644 );
10645 let rename_focus_handle = rename_editor.focus_handle(cx);
10646 cx.focus(&rename_focus_handle);
10647 let block_id = this.insert_blocks(
10648 [BlockProperties {
10649 style: BlockStyle::Flex,
10650 placement: BlockPlacement::Below(range.start),
10651 height: 1,
10652 render: Arc::new({
10653 let rename_editor = rename_editor.clone();
10654 move |cx: &mut BlockContext| {
10655 let mut text_style = cx.editor_style.text.clone();
10656 if let Some(highlight_style) = old_highlight_id
10657 .and_then(|h| h.style(&cx.editor_style.syntax))
10658 {
10659 text_style = text_style.highlight(highlight_style);
10660 }
10661 div()
10662 .block_mouse_down()
10663 .pl(cx.anchor_x)
10664 .child(EditorElement::new(
10665 &rename_editor,
10666 EditorStyle {
10667 background: cx.theme().system().transparent,
10668 local_player: cx.editor_style.local_player,
10669 text: text_style,
10670 scrollbar_width: cx.editor_style.scrollbar_width,
10671 syntax: cx.editor_style.syntax.clone(),
10672 status: cx.editor_style.status.clone(),
10673 inlay_hints_style: HighlightStyle {
10674 font_weight: Some(FontWeight::BOLD),
10675 ..make_inlay_hints_style(cx)
10676 },
10677 suggestions_style: HighlightStyle {
10678 color: Some(cx.theme().status().predictive),
10679 ..HighlightStyle::default()
10680 },
10681 ..EditorStyle::default()
10682 },
10683 ))
10684 .into_any_element()
10685 }
10686 }),
10687 priority: 0,
10688 }],
10689 Some(Autoscroll::fit()),
10690 cx,
10691 )[0];
10692 this.pending_rename = Some(RenameState {
10693 range,
10694 old_name,
10695 editor: rename_editor,
10696 block_id,
10697 });
10698 })?;
10699 }
10700
10701 Ok(())
10702 }))
10703 }
10704
10705 pub fn confirm_rename(
10706 &mut self,
10707 _: &ConfirmRename,
10708 cx: &mut ViewContext<Self>,
10709 ) -> Option<Task<Result<()>>> {
10710 let rename = self.take_rename(false, cx)?;
10711 let workspace = self.workspace()?.downgrade();
10712 let (buffer, start) = self
10713 .buffer
10714 .read(cx)
10715 .text_anchor_for_position(rename.range.start, cx)?;
10716 let (end_buffer, _) = self
10717 .buffer
10718 .read(cx)
10719 .text_anchor_for_position(rename.range.end, cx)?;
10720 if buffer != end_buffer {
10721 return None;
10722 }
10723
10724 let old_name = rename.old_name;
10725 let new_name = rename.editor.read(cx).text(cx);
10726
10727 let rename = self.semantics_provider.as_ref()?.perform_rename(
10728 &buffer,
10729 start,
10730 new_name.clone(),
10731 cx,
10732 )?;
10733
10734 Some(cx.spawn(|editor, mut cx| async move {
10735 let project_transaction = rename.await?;
10736 Self::open_project_transaction(
10737 &editor,
10738 workspace,
10739 project_transaction,
10740 format!("Rename: {} → {}", old_name, new_name),
10741 cx.clone(),
10742 )
10743 .await?;
10744
10745 editor.update(&mut cx, |editor, cx| {
10746 editor.refresh_document_highlights(cx);
10747 })?;
10748 Ok(())
10749 }))
10750 }
10751
10752 fn take_rename(
10753 &mut self,
10754 moving_cursor: bool,
10755 cx: &mut ViewContext<Self>,
10756 ) -> Option<RenameState> {
10757 let rename = self.pending_rename.take()?;
10758 if rename.editor.focus_handle(cx).is_focused(cx) {
10759 cx.focus(&self.focus_handle);
10760 }
10761
10762 self.remove_blocks(
10763 [rename.block_id].into_iter().collect(),
10764 Some(Autoscroll::fit()),
10765 cx,
10766 );
10767 self.clear_highlights::<Rename>(cx);
10768 self.show_local_selections = true;
10769
10770 if moving_cursor {
10771 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10772 editor.selections.newest::<usize>(cx).head()
10773 });
10774
10775 // Update the selection to match the position of the selection inside
10776 // the rename editor.
10777 let snapshot = self.buffer.read(cx).read(cx);
10778 let rename_range = rename.range.to_offset(&snapshot);
10779 let cursor_in_editor = snapshot
10780 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10781 .min(rename_range.end);
10782 drop(snapshot);
10783
10784 self.change_selections(None, cx, |s| {
10785 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10786 });
10787 } else {
10788 self.refresh_document_highlights(cx);
10789 }
10790
10791 Some(rename)
10792 }
10793
10794 pub fn pending_rename(&self) -> Option<&RenameState> {
10795 self.pending_rename.as_ref()
10796 }
10797
10798 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10799 let project = match &self.project {
10800 Some(project) => project.clone(),
10801 None => return None,
10802 };
10803
10804 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10805 }
10806
10807 fn format_selections(
10808 &mut self,
10809 _: &FormatSelections,
10810 cx: &mut ViewContext<Self>,
10811 ) -> Option<Task<Result<()>>> {
10812 let project = match &self.project {
10813 Some(project) => project.clone(),
10814 None => return None,
10815 };
10816
10817 let selections = self
10818 .selections
10819 .all_adjusted(cx)
10820 .into_iter()
10821 .filter(|s| !s.is_empty())
10822 .collect_vec();
10823
10824 Some(self.perform_format(
10825 project,
10826 FormatTrigger::Manual,
10827 FormatTarget::Ranges(selections),
10828 cx,
10829 ))
10830 }
10831
10832 fn perform_format(
10833 &mut self,
10834 project: Model<Project>,
10835 trigger: FormatTrigger,
10836 target: FormatTarget,
10837 cx: &mut ViewContext<Self>,
10838 ) -> Task<Result<()>> {
10839 let buffer = self.buffer().clone();
10840 let mut buffers = buffer.read(cx).all_buffers();
10841 if trigger == FormatTrigger::Save {
10842 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10843 }
10844
10845 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10846 let format = project.update(cx, |project, cx| {
10847 project.format(buffers, true, trigger, target, cx)
10848 });
10849
10850 cx.spawn(|_, mut cx| async move {
10851 let transaction = futures::select_biased! {
10852 () = timeout => {
10853 log::warn!("timed out waiting for formatting");
10854 None
10855 }
10856 transaction = format.log_err().fuse() => transaction,
10857 };
10858
10859 buffer
10860 .update(&mut cx, |buffer, cx| {
10861 if let Some(transaction) = transaction {
10862 if !buffer.is_singleton() {
10863 buffer.push_transaction(&transaction.0, cx);
10864 }
10865 }
10866
10867 cx.notify();
10868 })
10869 .ok();
10870
10871 Ok(())
10872 })
10873 }
10874
10875 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10876 if let Some(project) = self.project.clone() {
10877 self.buffer.update(cx, |multi_buffer, cx| {
10878 project.update(cx, |project, cx| {
10879 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10880 });
10881 })
10882 }
10883 }
10884
10885 fn cancel_language_server_work(
10886 &mut self,
10887 _: &actions::CancelLanguageServerWork,
10888 cx: &mut ViewContext<Self>,
10889 ) {
10890 if let Some(project) = self.project.clone() {
10891 self.buffer.update(cx, |multi_buffer, cx| {
10892 project.update(cx, |project, cx| {
10893 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10894 });
10895 })
10896 }
10897 }
10898
10899 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10900 cx.show_character_palette();
10901 }
10902
10903 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10904 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10905 let buffer = self.buffer.read(cx).snapshot(cx);
10906 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10907 let is_valid = buffer
10908 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10909 .any(|entry| {
10910 entry.diagnostic.is_primary
10911 && !entry.range.is_empty()
10912 && entry.range.start == primary_range_start
10913 && entry.diagnostic.message == active_diagnostics.primary_message
10914 });
10915
10916 if is_valid != active_diagnostics.is_valid {
10917 active_diagnostics.is_valid = is_valid;
10918 let mut new_styles = HashMap::default();
10919 for (block_id, diagnostic) in &active_diagnostics.blocks {
10920 new_styles.insert(
10921 *block_id,
10922 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10923 );
10924 }
10925 self.display_map.update(cx, |display_map, _cx| {
10926 display_map.replace_blocks(new_styles)
10927 });
10928 }
10929 }
10930 }
10931
10932 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10933 self.dismiss_diagnostics(cx);
10934 let snapshot = self.snapshot(cx);
10935 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10936 let buffer = self.buffer.read(cx).snapshot(cx);
10937
10938 let mut primary_range = None;
10939 let mut primary_message = None;
10940 let mut group_end = Point::zero();
10941 let diagnostic_group = buffer
10942 .diagnostic_group::<MultiBufferPoint>(group_id)
10943 .filter_map(|entry| {
10944 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10945 && (entry.range.start.row == entry.range.end.row
10946 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10947 {
10948 return None;
10949 }
10950 if entry.range.end > group_end {
10951 group_end = entry.range.end;
10952 }
10953 if entry.diagnostic.is_primary {
10954 primary_range = Some(entry.range.clone());
10955 primary_message = Some(entry.diagnostic.message.clone());
10956 }
10957 Some(entry)
10958 })
10959 .collect::<Vec<_>>();
10960 let primary_range = primary_range?;
10961 let primary_message = primary_message?;
10962 let primary_range =
10963 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10964
10965 let blocks = display_map
10966 .insert_blocks(
10967 diagnostic_group.iter().map(|entry| {
10968 let diagnostic = entry.diagnostic.clone();
10969 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10970 BlockProperties {
10971 style: BlockStyle::Fixed,
10972 placement: BlockPlacement::Below(
10973 buffer.anchor_after(entry.range.start),
10974 ),
10975 height: message_height,
10976 render: diagnostic_block_renderer(diagnostic, None, true, true),
10977 priority: 0,
10978 }
10979 }),
10980 cx,
10981 )
10982 .into_iter()
10983 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10984 .collect();
10985
10986 Some(ActiveDiagnosticGroup {
10987 primary_range,
10988 primary_message,
10989 group_id,
10990 blocks,
10991 is_valid: true,
10992 })
10993 });
10994 self.active_diagnostics.is_some()
10995 }
10996
10997 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10998 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10999 self.display_map.update(cx, |display_map, cx| {
11000 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
11001 });
11002 cx.notify();
11003 }
11004 }
11005
11006 pub fn set_selections_from_remote(
11007 &mut self,
11008 selections: Vec<Selection<Anchor>>,
11009 pending_selection: Option<Selection<Anchor>>,
11010 cx: &mut ViewContext<Self>,
11011 ) {
11012 let old_cursor_position = self.selections.newest_anchor().head();
11013 self.selections.change_with(cx, |s| {
11014 s.select_anchors(selections);
11015 if let Some(pending_selection) = pending_selection {
11016 s.set_pending(pending_selection, SelectMode::Character);
11017 } else {
11018 s.clear_pending();
11019 }
11020 });
11021 self.selections_did_change(false, &old_cursor_position, true, cx);
11022 }
11023
11024 fn push_to_selection_history(&mut self) {
11025 self.selection_history.push(SelectionHistoryEntry {
11026 selections: self.selections.disjoint_anchors(),
11027 select_next_state: self.select_next_state.clone(),
11028 select_prev_state: self.select_prev_state.clone(),
11029 add_selections_state: self.add_selections_state.clone(),
11030 });
11031 }
11032
11033 pub fn transact(
11034 &mut self,
11035 cx: &mut ViewContext<Self>,
11036 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
11037 ) -> Option<TransactionId> {
11038 self.start_transaction_at(Instant::now(), cx);
11039 update(self, cx);
11040 self.end_transaction_at(Instant::now(), cx)
11041 }
11042
11043 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
11044 self.end_selection(cx);
11045 if let Some(tx_id) = self
11046 .buffer
11047 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
11048 {
11049 self.selection_history
11050 .insert_transaction(tx_id, self.selections.disjoint_anchors());
11051 cx.emit(EditorEvent::TransactionBegun {
11052 transaction_id: tx_id,
11053 })
11054 }
11055 }
11056
11057 fn end_transaction_at(
11058 &mut self,
11059 now: Instant,
11060 cx: &mut ViewContext<Self>,
11061 ) -> Option<TransactionId> {
11062 if let Some(transaction_id) = self
11063 .buffer
11064 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
11065 {
11066 if let Some((_, end_selections)) =
11067 self.selection_history.transaction_mut(transaction_id)
11068 {
11069 *end_selections = Some(self.selections.disjoint_anchors());
11070 } else {
11071 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
11072 }
11073
11074 cx.emit(EditorEvent::Edited { transaction_id });
11075 Some(transaction_id)
11076 } else {
11077 None
11078 }
11079 }
11080
11081 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
11082 let selection = self.selections.newest::<Point>(cx);
11083
11084 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11085 let range = if selection.is_empty() {
11086 let point = selection.head().to_display_point(&display_map);
11087 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11088 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11089 .to_point(&display_map);
11090 start..end
11091 } else {
11092 selection.range()
11093 };
11094 if display_map.folds_in_range(range).next().is_some() {
11095 self.unfold_lines(&Default::default(), cx)
11096 } else {
11097 self.fold(&Default::default(), cx)
11098 }
11099 }
11100
11101 pub fn toggle_fold_recursive(
11102 &mut self,
11103 _: &actions::ToggleFoldRecursive,
11104 cx: &mut ViewContext<Self>,
11105 ) {
11106 let selection = self.selections.newest::<Point>(cx);
11107
11108 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11109 let range = if selection.is_empty() {
11110 let point = selection.head().to_display_point(&display_map);
11111 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11112 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11113 .to_point(&display_map);
11114 start..end
11115 } else {
11116 selection.range()
11117 };
11118 if display_map.folds_in_range(range).next().is_some() {
11119 self.unfold_recursive(&Default::default(), cx)
11120 } else {
11121 self.fold_recursive(&Default::default(), cx)
11122 }
11123 }
11124
11125 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
11126 let mut to_fold = Vec::new();
11127 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11128 let selections = self.selections.all_adjusted(cx);
11129
11130 for selection in selections {
11131 let range = selection.range().sorted();
11132 let buffer_start_row = range.start.row;
11133
11134 if range.start.row != range.end.row {
11135 let mut found = false;
11136 let mut row = range.start.row;
11137 while row <= range.end.row {
11138 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11139 found = true;
11140 row = crease.range().end.row + 1;
11141 to_fold.push(crease);
11142 } else {
11143 row += 1
11144 }
11145 }
11146 if found {
11147 continue;
11148 }
11149 }
11150
11151 for row in (0..=range.start.row).rev() {
11152 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11153 if crease.range().end.row >= buffer_start_row {
11154 to_fold.push(crease);
11155 if row <= range.start.row {
11156 break;
11157 }
11158 }
11159 }
11160 }
11161 }
11162
11163 self.fold_creases(to_fold, true, cx);
11164 }
11165
11166 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
11167 if !self.buffer.read(cx).is_singleton() {
11168 return;
11169 }
11170
11171 let fold_at_level = fold_at.level;
11172 let snapshot = self.buffer.read(cx).snapshot(cx);
11173 let mut to_fold = Vec::new();
11174 let mut stack = vec![(0, snapshot.max_row().0, 1)];
11175
11176 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
11177 while start_row < end_row {
11178 match self
11179 .snapshot(cx)
11180 .crease_for_buffer_row(MultiBufferRow(start_row))
11181 {
11182 Some(crease) => {
11183 let nested_start_row = crease.range().start.row + 1;
11184 let nested_end_row = crease.range().end.row;
11185
11186 if current_level < fold_at_level {
11187 stack.push((nested_start_row, nested_end_row, current_level + 1));
11188 } else if current_level == fold_at_level {
11189 to_fold.push(crease);
11190 }
11191
11192 start_row = nested_end_row + 1;
11193 }
11194 None => start_row += 1,
11195 }
11196 }
11197 }
11198
11199 self.fold_creases(to_fold, true, cx);
11200 }
11201
11202 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
11203 if !self.buffer.read(cx).is_singleton() {
11204 return;
11205 }
11206
11207 let mut fold_ranges = Vec::new();
11208 let snapshot = self.buffer.read(cx).snapshot(cx);
11209
11210 for row in 0..snapshot.max_row().0 {
11211 if let Some(foldable_range) =
11212 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
11213 {
11214 fold_ranges.push(foldable_range);
11215 }
11216 }
11217
11218 self.fold_creases(fold_ranges, true, cx);
11219 }
11220
11221 pub fn fold_function_bodies(
11222 &mut self,
11223 _: &actions::FoldFunctionBodies,
11224 cx: &mut ViewContext<Self>,
11225 ) {
11226 let snapshot = self.buffer.read(cx).snapshot(cx);
11227 let Some((_, _, buffer)) = snapshot.as_singleton() else {
11228 return;
11229 };
11230 let creases = buffer
11231 .function_body_fold_ranges(0..buffer.len())
11232 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
11233 .collect();
11234
11235 self.fold_creases(creases, true, cx);
11236 }
11237
11238 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
11239 let mut to_fold = Vec::new();
11240 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11241 let selections = self.selections.all_adjusted(cx);
11242
11243 for selection in selections {
11244 let range = selection.range().sorted();
11245 let buffer_start_row = range.start.row;
11246
11247 if range.start.row != range.end.row {
11248 let mut found = false;
11249 for row in range.start.row..=range.end.row {
11250 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11251 found = true;
11252 to_fold.push(crease);
11253 }
11254 }
11255 if found {
11256 continue;
11257 }
11258 }
11259
11260 for row in (0..=range.start.row).rev() {
11261 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11262 if crease.range().end.row >= buffer_start_row {
11263 to_fold.push(crease);
11264 } else {
11265 break;
11266 }
11267 }
11268 }
11269 }
11270
11271 self.fold_creases(to_fold, true, cx);
11272 }
11273
11274 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11275 let buffer_row = fold_at.buffer_row;
11276 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11277
11278 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
11279 let autoscroll = self
11280 .selections
11281 .all::<Point>(cx)
11282 .iter()
11283 .any(|selection| crease.range().overlaps(&selection.range()));
11284
11285 self.fold_creases(vec![crease], autoscroll, cx);
11286 }
11287 }
11288
11289 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11290 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11291 let buffer = &display_map.buffer_snapshot;
11292 let selections = self.selections.all::<Point>(cx);
11293 let ranges = selections
11294 .iter()
11295 .map(|s| {
11296 let range = s.display_range(&display_map).sorted();
11297 let mut start = range.start.to_point(&display_map);
11298 let mut end = range.end.to_point(&display_map);
11299 start.column = 0;
11300 end.column = buffer.line_len(MultiBufferRow(end.row));
11301 start..end
11302 })
11303 .collect::<Vec<_>>();
11304
11305 self.unfold_ranges(&ranges, true, true, cx);
11306 }
11307
11308 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11309 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11310 let selections = self.selections.all::<Point>(cx);
11311 let ranges = selections
11312 .iter()
11313 .map(|s| {
11314 let mut range = s.display_range(&display_map).sorted();
11315 *range.start.column_mut() = 0;
11316 *range.end.column_mut() = display_map.line_len(range.end.row());
11317 let start = range.start.to_point(&display_map);
11318 let end = range.end.to_point(&display_map);
11319 start..end
11320 })
11321 .collect::<Vec<_>>();
11322
11323 self.unfold_ranges(&ranges, true, true, cx);
11324 }
11325
11326 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11327 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11328
11329 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11330 ..Point::new(
11331 unfold_at.buffer_row.0,
11332 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11333 );
11334
11335 let autoscroll = self
11336 .selections
11337 .all::<Point>(cx)
11338 .iter()
11339 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11340
11341 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11342 }
11343
11344 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11345 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11346 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11347 }
11348
11349 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11350 let selections = self.selections.all::<Point>(cx);
11351 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11352 let line_mode = self.selections.line_mode;
11353 let ranges = selections
11354 .into_iter()
11355 .map(|s| {
11356 if line_mode {
11357 let start = Point::new(s.start.row, 0);
11358 let end = Point::new(
11359 s.end.row,
11360 display_map
11361 .buffer_snapshot
11362 .line_len(MultiBufferRow(s.end.row)),
11363 );
11364 Crease::simple(start..end, display_map.fold_placeholder.clone())
11365 } else {
11366 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11367 }
11368 })
11369 .collect::<Vec<_>>();
11370 self.fold_creases(ranges, true, cx);
11371 }
11372
11373 pub fn fold_creases<T: ToOffset + Clone>(
11374 &mut self,
11375 creases: Vec<Crease<T>>,
11376 auto_scroll: bool,
11377 cx: &mut ViewContext<Self>,
11378 ) {
11379 if creases.is_empty() {
11380 return;
11381 }
11382
11383 let mut buffers_affected = HashSet::default();
11384 let multi_buffer = self.buffer().read(cx);
11385 for crease in &creases {
11386 if let Some((_, buffer, _)) =
11387 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11388 {
11389 buffers_affected.insert(buffer.read(cx).remote_id());
11390 };
11391 }
11392
11393 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11394
11395 if auto_scroll {
11396 self.request_autoscroll(Autoscroll::fit(), cx);
11397 }
11398
11399 for buffer_id in buffers_affected {
11400 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11401 }
11402
11403 cx.notify();
11404
11405 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11406 // Clear diagnostics block when folding a range that contains it.
11407 let snapshot = self.snapshot(cx);
11408 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11409 drop(snapshot);
11410 self.active_diagnostics = Some(active_diagnostics);
11411 self.dismiss_diagnostics(cx);
11412 } else {
11413 self.active_diagnostics = Some(active_diagnostics);
11414 }
11415 }
11416
11417 self.scrollbar_marker_state.dirty = true;
11418 }
11419
11420 /// Removes any folds whose ranges intersect any of the given ranges.
11421 pub fn unfold_ranges<T: ToOffset + Clone>(
11422 &mut self,
11423 ranges: &[Range<T>],
11424 inclusive: bool,
11425 auto_scroll: bool,
11426 cx: &mut ViewContext<Self>,
11427 ) {
11428 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11429 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11430 });
11431 }
11432
11433 /// Removes any folds with the given ranges.
11434 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11435 &mut self,
11436 ranges: &[Range<T>],
11437 type_id: TypeId,
11438 auto_scroll: bool,
11439 cx: &mut ViewContext<Self>,
11440 ) {
11441 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11442 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11443 });
11444 }
11445
11446 fn remove_folds_with<T: ToOffset + Clone>(
11447 &mut self,
11448 ranges: &[Range<T>],
11449 auto_scroll: bool,
11450 cx: &mut ViewContext<Self>,
11451 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11452 ) {
11453 if ranges.is_empty() {
11454 return;
11455 }
11456
11457 let mut buffers_affected = HashSet::default();
11458 let multi_buffer = self.buffer().read(cx);
11459 for range in ranges {
11460 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11461 buffers_affected.insert(buffer.read(cx).remote_id());
11462 };
11463 }
11464
11465 self.display_map.update(cx, update);
11466
11467 if auto_scroll {
11468 self.request_autoscroll(Autoscroll::fit(), cx);
11469 }
11470
11471 for buffer_id in buffers_affected {
11472 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11473 }
11474
11475 cx.notify();
11476 self.scrollbar_marker_state.dirty = true;
11477 self.active_indent_guides_state.dirty = true;
11478 }
11479
11480 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11481 self.display_map.read(cx).fold_placeholder.clone()
11482 }
11483
11484 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11485 if hovered != self.gutter_hovered {
11486 self.gutter_hovered = hovered;
11487 cx.notify();
11488 }
11489 }
11490
11491 pub fn insert_blocks(
11492 &mut self,
11493 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11494 autoscroll: Option<Autoscroll>,
11495 cx: &mut ViewContext<Self>,
11496 ) -> Vec<CustomBlockId> {
11497 let blocks = self
11498 .display_map
11499 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11500 if let Some(autoscroll) = autoscroll {
11501 self.request_autoscroll(autoscroll, cx);
11502 }
11503 cx.notify();
11504 blocks
11505 }
11506
11507 pub fn resize_blocks(
11508 &mut self,
11509 heights: HashMap<CustomBlockId, u32>,
11510 autoscroll: Option<Autoscroll>,
11511 cx: &mut ViewContext<Self>,
11512 ) {
11513 self.display_map
11514 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11515 if let Some(autoscroll) = autoscroll {
11516 self.request_autoscroll(autoscroll, cx);
11517 }
11518 cx.notify();
11519 }
11520
11521 pub fn replace_blocks(
11522 &mut self,
11523 renderers: HashMap<CustomBlockId, RenderBlock>,
11524 autoscroll: Option<Autoscroll>,
11525 cx: &mut ViewContext<Self>,
11526 ) {
11527 self.display_map
11528 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11529 if let Some(autoscroll) = autoscroll {
11530 self.request_autoscroll(autoscroll, cx);
11531 }
11532 cx.notify();
11533 }
11534
11535 pub fn remove_blocks(
11536 &mut self,
11537 block_ids: HashSet<CustomBlockId>,
11538 autoscroll: Option<Autoscroll>,
11539 cx: &mut ViewContext<Self>,
11540 ) {
11541 self.display_map.update(cx, |display_map, cx| {
11542 display_map.remove_blocks(block_ids, cx)
11543 });
11544 if let Some(autoscroll) = autoscroll {
11545 self.request_autoscroll(autoscroll, cx);
11546 }
11547 cx.notify();
11548 }
11549
11550 pub fn row_for_block(
11551 &self,
11552 block_id: CustomBlockId,
11553 cx: &mut ViewContext<Self>,
11554 ) -> Option<DisplayRow> {
11555 self.display_map
11556 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11557 }
11558
11559 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11560 self.focused_block = Some(focused_block);
11561 }
11562
11563 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11564 self.focused_block.take()
11565 }
11566
11567 pub fn insert_creases(
11568 &mut self,
11569 creases: impl IntoIterator<Item = Crease<Anchor>>,
11570 cx: &mut ViewContext<Self>,
11571 ) -> Vec<CreaseId> {
11572 self.display_map
11573 .update(cx, |map, cx| map.insert_creases(creases, cx))
11574 }
11575
11576 pub fn remove_creases(
11577 &mut self,
11578 ids: impl IntoIterator<Item = CreaseId>,
11579 cx: &mut ViewContext<Self>,
11580 ) {
11581 self.display_map
11582 .update(cx, |map, cx| map.remove_creases(ids, cx));
11583 }
11584
11585 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11586 self.display_map
11587 .update(cx, |map, cx| map.snapshot(cx))
11588 .longest_row()
11589 }
11590
11591 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11592 self.display_map
11593 .update(cx, |map, cx| map.snapshot(cx))
11594 .max_point()
11595 }
11596
11597 pub fn text(&self, cx: &AppContext) -> String {
11598 self.buffer.read(cx).read(cx).text()
11599 }
11600
11601 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11602 let text = self.text(cx);
11603 let text = text.trim();
11604
11605 if text.is_empty() {
11606 return None;
11607 }
11608
11609 Some(text.to_string())
11610 }
11611
11612 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11613 self.transact(cx, |this, cx| {
11614 this.buffer
11615 .read(cx)
11616 .as_singleton()
11617 .expect("you can only call set_text on editors for singleton buffers")
11618 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11619 });
11620 }
11621
11622 pub fn display_text(&self, cx: &mut AppContext) -> String {
11623 self.display_map
11624 .update(cx, |map, cx| map.snapshot(cx))
11625 .text()
11626 }
11627
11628 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11629 let mut wrap_guides = smallvec::smallvec![];
11630
11631 if self.show_wrap_guides == Some(false) {
11632 return wrap_guides;
11633 }
11634
11635 let settings = self.buffer.read(cx).settings_at(0, cx);
11636 if settings.show_wrap_guides {
11637 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11638 wrap_guides.push((soft_wrap as usize, true));
11639 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11640 wrap_guides.push((soft_wrap as usize, true));
11641 }
11642 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11643 }
11644
11645 wrap_guides
11646 }
11647
11648 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11649 let settings = self.buffer.read(cx).settings_at(0, cx);
11650 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11651 match mode {
11652 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11653 SoftWrap::None
11654 }
11655 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11656 language_settings::SoftWrap::PreferredLineLength => {
11657 SoftWrap::Column(settings.preferred_line_length)
11658 }
11659 language_settings::SoftWrap::Bounded => {
11660 SoftWrap::Bounded(settings.preferred_line_length)
11661 }
11662 }
11663 }
11664
11665 pub fn set_soft_wrap_mode(
11666 &mut self,
11667 mode: language_settings::SoftWrap,
11668 cx: &mut ViewContext<Self>,
11669 ) {
11670 self.soft_wrap_mode_override = Some(mode);
11671 cx.notify();
11672 }
11673
11674 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11675 self.text_style_refinement = Some(style);
11676 }
11677
11678 /// called by the Element so we know what style we were most recently rendered with.
11679 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11680 let rem_size = cx.rem_size();
11681 self.display_map.update(cx, |map, cx| {
11682 map.set_font(
11683 style.text.font(),
11684 style.text.font_size.to_pixels(rem_size),
11685 cx,
11686 )
11687 });
11688 self.style = Some(style);
11689 }
11690
11691 pub fn style(&self) -> Option<&EditorStyle> {
11692 self.style.as_ref()
11693 }
11694
11695 // Called by the element. This method is not designed to be called outside of the editor
11696 // element's layout code because it does not notify when rewrapping is computed synchronously.
11697 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11698 self.display_map
11699 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11700 }
11701
11702 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11703 if self.soft_wrap_mode_override.is_some() {
11704 self.soft_wrap_mode_override.take();
11705 } else {
11706 let soft_wrap = match self.soft_wrap_mode(cx) {
11707 SoftWrap::GitDiff => return,
11708 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11709 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11710 language_settings::SoftWrap::None
11711 }
11712 };
11713 self.soft_wrap_mode_override = Some(soft_wrap);
11714 }
11715 cx.notify();
11716 }
11717
11718 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11719 let Some(workspace) = self.workspace() else {
11720 return;
11721 };
11722 let fs = workspace.read(cx).app_state().fs.clone();
11723 let current_show = TabBarSettings::get_global(cx).show;
11724 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11725 setting.show = Some(!current_show);
11726 });
11727 }
11728
11729 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11730 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11731 self.buffer
11732 .read(cx)
11733 .settings_at(0, cx)
11734 .indent_guides
11735 .enabled
11736 });
11737 self.show_indent_guides = Some(!currently_enabled);
11738 cx.notify();
11739 }
11740
11741 fn should_show_indent_guides(&self) -> Option<bool> {
11742 self.show_indent_guides
11743 }
11744
11745 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11746 let mut editor_settings = EditorSettings::get_global(cx).clone();
11747 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11748 EditorSettings::override_global(editor_settings, cx);
11749 }
11750
11751 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11752 self.use_relative_line_numbers
11753 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11754 }
11755
11756 pub fn toggle_relative_line_numbers(
11757 &mut self,
11758 _: &ToggleRelativeLineNumbers,
11759 cx: &mut ViewContext<Self>,
11760 ) {
11761 let is_relative = self.should_use_relative_line_numbers(cx);
11762 self.set_relative_line_number(Some(!is_relative), cx)
11763 }
11764
11765 pub fn set_relative_line_number(
11766 &mut self,
11767 is_relative: Option<bool>,
11768 cx: &mut ViewContext<Self>,
11769 ) {
11770 self.use_relative_line_numbers = is_relative;
11771 cx.notify();
11772 }
11773
11774 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11775 self.show_gutter = show_gutter;
11776 cx.notify();
11777 }
11778
11779 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11780 self.show_line_numbers = Some(show_line_numbers);
11781 cx.notify();
11782 }
11783
11784 pub fn set_show_git_diff_gutter(
11785 &mut self,
11786 show_git_diff_gutter: bool,
11787 cx: &mut ViewContext<Self>,
11788 ) {
11789 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11790 cx.notify();
11791 }
11792
11793 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11794 self.show_code_actions = Some(show_code_actions);
11795 cx.notify();
11796 }
11797
11798 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11799 self.show_runnables = Some(show_runnables);
11800 cx.notify();
11801 }
11802
11803 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11804 if self.display_map.read(cx).masked != masked {
11805 self.display_map.update(cx, |map, _| map.masked = masked);
11806 }
11807 cx.notify()
11808 }
11809
11810 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11811 self.show_wrap_guides = Some(show_wrap_guides);
11812 cx.notify();
11813 }
11814
11815 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11816 self.show_indent_guides = Some(show_indent_guides);
11817 cx.notify();
11818 }
11819
11820 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11821 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11822 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11823 if let Some(dir) = file.abs_path(cx).parent() {
11824 return Some(dir.to_owned());
11825 }
11826 }
11827
11828 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11829 return Some(project_path.path.to_path_buf());
11830 }
11831 }
11832
11833 None
11834 }
11835
11836 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11837 self.active_excerpt(cx)?
11838 .1
11839 .read(cx)
11840 .file()
11841 .and_then(|f| f.as_local())
11842 }
11843
11844 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11845 if let Some(target) = self.target_file(cx) {
11846 cx.reveal_path(&target.abs_path(cx));
11847 }
11848 }
11849
11850 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11851 if let Some(file) = self.target_file(cx) {
11852 if let Some(path) = file.abs_path(cx).to_str() {
11853 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11854 }
11855 }
11856 }
11857
11858 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11859 if let Some(file) = self.target_file(cx) {
11860 if let Some(path) = file.path().to_str() {
11861 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11862 }
11863 }
11864 }
11865
11866 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11867 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11868
11869 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11870 self.start_git_blame(true, cx);
11871 }
11872
11873 cx.notify();
11874 }
11875
11876 pub fn toggle_git_blame_inline(
11877 &mut self,
11878 _: &ToggleGitBlameInline,
11879 cx: &mut ViewContext<Self>,
11880 ) {
11881 self.toggle_git_blame_inline_internal(true, cx);
11882 cx.notify();
11883 }
11884
11885 pub fn git_blame_inline_enabled(&self) -> bool {
11886 self.git_blame_inline_enabled
11887 }
11888
11889 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11890 self.show_selection_menu = self
11891 .show_selection_menu
11892 .map(|show_selections_menu| !show_selections_menu)
11893 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11894
11895 cx.notify();
11896 }
11897
11898 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11899 self.show_selection_menu
11900 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11901 }
11902
11903 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11904 if let Some(project) = self.project.as_ref() {
11905 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11906 return;
11907 };
11908
11909 if buffer.read(cx).file().is_none() {
11910 return;
11911 }
11912
11913 let focused = self.focus_handle(cx).contains_focused(cx);
11914
11915 let project = project.clone();
11916 let blame =
11917 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11918 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11919 self.blame = Some(blame);
11920 }
11921 }
11922
11923 fn toggle_git_blame_inline_internal(
11924 &mut self,
11925 user_triggered: bool,
11926 cx: &mut ViewContext<Self>,
11927 ) {
11928 if self.git_blame_inline_enabled {
11929 self.git_blame_inline_enabled = false;
11930 self.show_git_blame_inline = false;
11931 self.show_git_blame_inline_delay_task.take();
11932 } else {
11933 self.git_blame_inline_enabled = true;
11934 self.start_git_blame_inline(user_triggered, cx);
11935 }
11936
11937 cx.notify();
11938 }
11939
11940 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11941 self.start_git_blame(user_triggered, cx);
11942
11943 if ProjectSettings::get_global(cx)
11944 .git
11945 .inline_blame_delay()
11946 .is_some()
11947 {
11948 self.start_inline_blame_timer(cx);
11949 } else {
11950 self.show_git_blame_inline = true
11951 }
11952 }
11953
11954 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11955 self.blame.as_ref()
11956 }
11957
11958 pub fn show_git_blame_gutter(&self) -> bool {
11959 self.show_git_blame_gutter
11960 }
11961
11962 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11963 self.show_git_blame_gutter && self.has_blame_entries(cx)
11964 }
11965
11966 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11967 self.show_git_blame_inline
11968 && self.focus_handle.is_focused(cx)
11969 && !self.newest_selection_head_on_empty_line(cx)
11970 && self.has_blame_entries(cx)
11971 }
11972
11973 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11974 self.blame()
11975 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11976 }
11977
11978 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11979 let cursor_anchor = self.selections.newest_anchor().head();
11980
11981 let snapshot = self.buffer.read(cx).snapshot(cx);
11982 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11983
11984 snapshot.line_len(buffer_row) == 0
11985 }
11986
11987 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11988 let buffer_and_selection = maybe!({
11989 let selection = self.selections.newest::<Point>(cx);
11990 let selection_range = selection.range();
11991
11992 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11993 (buffer, selection_range.start.row..selection_range.end.row)
11994 } else {
11995 let buffer_ranges = self
11996 .buffer()
11997 .read(cx)
11998 .range_to_buffer_ranges(selection_range, cx);
11999
12000 let (buffer, range, _) = if selection.reversed {
12001 buffer_ranges.first()
12002 } else {
12003 buffer_ranges.last()
12004 }?;
12005
12006 let snapshot = buffer.read(cx).snapshot();
12007 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
12008 ..text::ToPoint::to_point(&range.end, &snapshot).row;
12009 (buffer.clone(), selection)
12010 };
12011
12012 Some((buffer, selection))
12013 });
12014
12015 let Some((buffer, selection)) = buffer_and_selection else {
12016 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
12017 };
12018
12019 let Some(project) = self.project.as_ref() else {
12020 return Task::ready(Err(anyhow!("editor does not have project")));
12021 };
12022
12023 project.update(cx, |project, cx| {
12024 project.get_permalink_to_line(&buffer, selection, cx)
12025 })
12026 }
12027
12028 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
12029 let permalink_task = self.get_permalink_to_line(cx);
12030 let workspace = self.workspace();
12031
12032 cx.spawn(|_, mut cx| async move {
12033 match permalink_task.await {
12034 Ok(permalink) => {
12035 cx.update(|cx| {
12036 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
12037 })
12038 .ok();
12039 }
12040 Err(err) => {
12041 let message = format!("Failed to copy permalink: {err}");
12042
12043 Err::<(), anyhow::Error>(err).log_err();
12044
12045 if let Some(workspace) = workspace {
12046 workspace
12047 .update(&mut cx, |workspace, cx| {
12048 struct CopyPermalinkToLine;
12049
12050 workspace.show_toast(
12051 Toast::new(
12052 NotificationId::unique::<CopyPermalinkToLine>(),
12053 message,
12054 ),
12055 cx,
12056 )
12057 })
12058 .ok();
12059 }
12060 }
12061 }
12062 })
12063 .detach();
12064 }
12065
12066 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
12067 let selection = self.selections.newest::<Point>(cx).start.row + 1;
12068 if let Some(file) = self.target_file(cx) {
12069 if let Some(path) = file.path().to_str() {
12070 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
12071 }
12072 }
12073 }
12074
12075 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
12076 let permalink_task = self.get_permalink_to_line(cx);
12077 let workspace = self.workspace();
12078
12079 cx.spawn(|_, mut cx| async move {
12080 match permalink_task.await {
12081 Ok(permalink) => {
12082 cx.update(|cx| {
12083 cx.open_url(permalink.as_ref());
12084 })
12085 .ok();
12086 }
12087 Err(err) => {
12088 let message = format!("Failed to open permalink: {err}");
12089
12090 Err::<(), anyhow::Error>(err).log_err();
12091
12092 if let Some(workspace) = workspace {
12093 workspace
12094 .update(&mut cx, |workspace, cx| {
12095 struct OpenPermalinkToLine;
12096
12097 workspace.show_toast(
12098 Toast::new(
12099 NotificationId::unique::<OpenPermalinkToLine>(),
12100 message,
12101 ),
12102 cx,
12103 )
12104 })
12105 .ok();
12106 }
12107 }
12108 }
12109 })
12110 .detach();
12111 }
12112
12113 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
12114 self.insert_uuid(UuidVersion::V4, cx);
12115 }
12116
12117 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
12118 self.insert_uuid(UuidVersion::V7, cx);
12119 }
12120
12121 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
12122 self.transact(cx, |this, cx| {
12123 let edits = this
12124 .selections
12125 .all::<Point>(cx)
12126 .into_iter()
12127 .map(|selection| {
12128 let uuid = match version {
12129 UuidVersion::V4 => uuid::Uuid::new_v4(),
12130 UuidVersion::V7 => uuid::Uuid::now_v7(),
12131 };
12132
12133 (selection.range(), uuid.to_string())
12134 });
12135 this.edit(edits, cx);
12136 this.refresh_inline_completion(true, false, cx);
12137 });
12138 }
12139
12140 /// Adds a row highlight for the given range. If a row has multiple highlights, the
12141 /// last highlight added will be used.
12142 ///
12143 /// If the range ends at the beginning of a line, then that line will not be highlighted.
12144 pub fn highlight_rows<T: 'static>(
12145 &mut self,
12146 range: Range<Anchor>,
12147 color: Hsla,
12148 should_autoscroll: bool,
12149 cx: &mut ViewContext<Self>,
12150 ) {
12151 let snapshot = self.buffer().read(cx).snapshot(cx);
12152 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12153 let ix = row_highlights.binary_search_by(|highlight| {
12154 Ordering::Equal
12155 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
12156 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
12157 });
12158
12159 if let Err(mut ix) = ix {
12160 let index = post_inc(&mut self.highlight_order);
12161
12162 // If this range intersects with the preceding highlight, then merge it with
12163 // the preceding highlight. Otherwise insert a new highlight.
12164 let mut merged = false;
12165 if ix > 0 {
12166 let prev_highlight = &mut row_highlights[ix - 1];
12167 if prev_highlight
12168 .range
12169 .end
12170 .cmp(&range.start, &snapshot)
12171 .is_ge()
12172 {
12173 ix -= 1;
12174 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12175 prev_highlight.range.end = range.end;
12176 }
12177 merged = true;
12178 prev_highlight.index = index;
12179 prev_highlight.color = color;
12180 prev_highlight.should_autoscroll = should_autoscroll;
12181 }
12182 }
12183
12184 if !merged {
12185 row_highlights.insert(
12186 ix,
12187 RowHighlight {
12188 range: range.clone(),
12189 index,
12190 color,
12191 should_autoscroll,
12192 },
12193 );
12194 }
12195
12196 // If any of the following highlights intersect with this one, merge them.
12197 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12198 let highlight = &row_highlights[ix];
12199 if next_highlight
12200 .range
12201 .start
12202 .cmp(&highlight.range.end, &snapshot)
12203 .is_le()
12204 {
12205 if next_highlight
12206 .range
12207 .end
12208 .cmp(&highlight.range.end, &snapshot)
12209 .is_gt()
12210 {
12211 row_highlights[ix].range.end = next_highlight.range.end;
12212 }
12213 row_highlights.remove(ix + 1);
12214 } else {
12215 break;
12216 }
12217 }
12218 }
12219 }
12220
12221 /// Remove any highlighted row ranges of the given type that intersect the
12222 /// given ranges.
12223 pub fn remove_highlighted_rows<T: 'static>(
12224 &mut self,
12225 ranges_to_remove: Vec<Range<Anchor>>,
12226 cx: &mut ViewContext<Self>,
12227 ) {
12228 let snapshot = self.buffer().read(cx).snapshot(cx);
12229 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12230 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12231 row_highlights.retain(|highlight| {
12232 while let Some(range_to_remove) = ranges_to_remove.peek() {
12233 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12234 Ordering::Less | Ordering::Equal => {
12235 ranges_to_remove.next();
12236 }
12237 Ordering::Greater => {
12238 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12239 Ordering::Less | Ordering::Equal => {
12240 return false;
12241 }
12242 Ordering::Greater => break,
12243 }
12244 }
12245 }
12246 }
12247
12248 true
12249 })
12250 }
12251
12252 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12253 pub fn clear_row_highlights<T: 'static>(&mut self) {
12254 self.highlighted_rows.remove(&TypeId::of::<T>());
12255 }
12256
12257 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12258 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12259 self.highlighted_rows
12260 .get(&TypeId::of::<T>())
12261 .map_or(&[] as &[_], |vec| vec.as_slice())
12262 .iter()
12263 .map(|highlight| (highlight.range.clone(), highlight.color))
12264 }
12265
12266 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12267 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
12268 /// Allows to ignore certain kinds of highlights.
12269 pub fn highlighted_display_rows(
12270 &mut self,
12271 cx: &mut WindowContext,
12272 ) -> BTreeMap<DisplayRow, Hsla> {
12273 let snapshot = self.snapshot(cx);
12274 let mut used_highlight_orders = HashMap::default();
12275 self.highlighted_rows
12276 .iter()
12277 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12278 .fold(
12279 BTreeMap::<DisplayRow, Hsla>::new(),
12280 |mut unique_rows, highlight| {
12281 let start = highlight.range.start.to_display_point(&snapshot);
12282 let end = highlight.range.end.to_display_point(&snapshot);
12283 let start_row = start.row().0;
12284 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12285 && end.column() == 0
12286 {
12287 end.row().0.saturating_sub(1)
12288 } else {
12289 end.row().0
12290 };
12291 for row in start_row..=end_row {
12292 let used_index =
12293 used_highlight_orders.entry(row).or_insert(highlight.index);
12294 if highlight.index >= *used_index {
12295 *used_index = highlight.index;
12296 unique_rows.insert(DisplayRow(row), highlight.color);
12297 }
12298 }
12299 unique_rows
12300 },
12301 )
12302 }
12303
12304 pub fn highlighted_display_row_for_autoscroll(
12305 &self,
12306 snapshot: &DisplaySnapshot,
12307 ) -> Option<DisplayRow> {
12308 self.highlighted_rows
12309 .values()
12310 .flat_map(|highlighted_rows| highlighted_rows.iter())
12311 .filter_map(|highlight| {
12312 if highlight.should_autoscroll {
12313 Some(highlight.range.start.to_display_point(snapshot).row())
12314 } else {
12315 None
12316 }
12317 })
12318 .min()
12319 }
12320
12321 pub fn set_search_within_ranges(
12322 &mut self,
12323 ranges: &[Range<Anchor>],
12324 cx: &mut ViewContext<Self>,
12325 ) {
12326 self.highlight_background::<SearchWithinRange>(
12327 ranges,
12328 |colors| colors.editor_document_highlight_read_background,
12329 cx,
12330 )
12331 }
12332
12333 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12334 self.breadcrumb_header = Some(new_header);
12335 }
12336
12337 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12338 self.clear_background_highlights::<SearchWithinRange>(cx);
12339 }
12340
12341 pub fn highlight_background<T: 'static>(
12342 &mut self,
12343 ranges: &[Range<Anchor>],
12344 color_fetcher: fn(&ThemeColors) -> Hsla,
12345 cx: &mut ViewContext<Self>,
12346 ) {
12347 self.background_highlights
12348 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12349 self.scrollbar_marker_state.dirty = true;
12350 cx.notify();
12351 }
12352
12353 pub fn clear_background_highlights<T: 'static>(
12354 &mut self,
12355 cx: &mut ViewContext<Self>,
12356 ) -> Option<BackgroundHighlight> {
12357 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12358 if !text_highlights.1.is_empty() {
12359 self.scrollbar_marker_state.dirty = true;
12360 cx.notify();
12361 }
12362 Some(text_highlights)
12363 }
12364
12365 pub fn highlight_gutter<T: 'static>(
12366 &mut self,
12367 ranges: &[Range<Anchor>],
12368 color_fetcher: fn(&AppContext) -> Hsla,
12369 cx: &mut ViewContext<Self>,
12370 ) {
12371 self.gutter_highlights
12372 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12373 cx.notify();
12374 }
12375
12376 pub fn clear_gutter_highlights<T: 'static>(
12377 &mut self,
12378 cx: &mut ViewContext<Self>,
12379 ) -> Option<GutterHighlight> {
12380 cx.notify();
12381 self.gutter_highlights.remove(&TypeId::of::<T>())
12382 }
12383
12384 #[cfg(feature = "test-support")]
12385 pub fn all_text_background_highlights(
12386 &mut self,
12387 cx: &mut ViewContext<Self>,
12388 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12389 let snapshot = self.snapshot(cx);
12390 let buffer = &snapshot.buffer_snapshot;
12391 let start = buffer.anchor_before(0);
12392 let end = buffer.anchor_after(buffer.len());
12393 let theme = cx.theme().colors();
12394 self.background_highlights_in_range(start..end, &snapshot, theme)
12395 }
12396
12397 #[cfg(feature = "test-support")]
12398 pub fn search_background_highlights(
12399 &mut self,
12400 cx: &mut ViewContext<Self>,
12401 ) -> Vec<Range<Point>> {
12402 let snapshot = self.buffer().read(cx).snapshot(cx);
12403
12404 let highlights = self
12405 .background_highlights
12406 .get(&TypeId::of::<items::BufferSearchHighlights>());
12407
12408 if let Some((_color, ranges)) = highlights {
12409 ranges
12410 .iter()
12411 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12412 .collect_vec()
12413 } else {
12414 vec![]
12415 }
12416 }
12417
12418 fn document_highlights_for_position<'a>(
12419 &'a self,
12420 position: Anchor,
12421 buffer: &'a MultiBufferSnapshot,
12422 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12423 let read_highlights = self
12424 .background_highlights
12425 .get(&TypeId::of::<DocumentHighlightRead>())
12426 .map(|h| &h.1);
12427 let write_highlights = self
12428 .background_highlights
12429 .get(&TypeId::of::<DocumentHighlightWrite>())
12430 .map(|h| &h.1);
12431 let left_position = position.bias_left(buffer);
12432 let right_position = position.bias_right(buffer);
12433 read_highlights
12434 .into_iter()
12435 .chain(write_highlights)
12436 .flat_map(move |ranges| {
12437 let start_ix = match ranges.binary_search_by(|probe| {
12438 let cmp = probe.end.cmp(&left_position, buffer);
12439 if cmp.is_ge() {
12440 Ordering::Greater
12441 } else {
12442 Ordering::Less
12443 }
12444 }) {
12445 Ok(i) | Err(i) => i,
12446 };
12447
12448 ranges[start_ix..]
12449 .iter()
12450 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12451 })
12452 }
12453
12454 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12455 self.background_highlights
12456 .get(&TypeId::of::<T>())
12457 .map_or(false, |(_, highlights)| !highlights.is_empty())
12458 }
12459
12460 pub fn background_highlights_in_range(
12461 &self,
12462 search_range: Range<Anchor>,
12463 display_snapshot: &DisplaySnapshot,
12464 theme: &ThemeColors,
12465 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12466 let mut results = Vec::new();
12467 for (color_fetcher, ranges) in self.background_highlights.values() {
12468 let color = color_fetcher(theme);
12469 let start_ix = match ranges.binary_search_by(|probe| {
12470 let cmp = probe
12471 .end
12472 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12473 if cmp.is_gt() {
12474 Ordering::Greater
12475 } else {
12476 Ordering::Less
12477 }
12478 }) {
12479 Ok(i) | Err(i) => i,
12480 };
12481 for range in &ranges[start_ix..] {
12482 if range
12483 .start
12484 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12485 .is_ge()
12486 {
12487 break;
12488 }
12489
12490 let start = range.start.to_display_point(display_snapshot);
12491 let end = range.end.to_display_point(display_snapshot);
12492 results.push((start..end, color))
12493 }
12494 }
12495 results
12496 }
12497
12498 pub fn background_highlight_row_ranges<T: 'static>(
12499 &self,
12500 search_range: Range<Anchor>,
12501 display_snapshot: &DisplaySnapshot,
12502 count: usize,
12503 ) -> Vec<RangeInclusive<DisplayPoint>> {
12504 let mut results = Vec::new();
12505 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12506 return vec![];
12507 };
12508
12509 let start_ix = match ranges.binary_search_by(|probe| {
12510 let cmp = probe
12511 .end
12512 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12513 if cmp.is_gt() {
12514 Ordering::Greater
12515 } else {
12516 Ordering::Less
12517 }
12518 }) {
12519 Ok(i) | Err(i) => i,
12520 };
12521 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12522 if let (Some(start_display), Some(end_display)) = (start, end) {
12523 results.push(
12524 start_display.to_display_point(display_snapshot)
12525 ..=end_display.to_display_point(display_snapshot),
12526 );
12527 }
12528 };
12529 let mut start_row: Option<Point> = None;
12530 let mut end_row: Option<Point> = None;
12531 if ranges.len() > count {
12532 return Vec::new();
12533 }
12534 for range in &ranges[start_ix..] {
12535 if range
12536 .start
12537 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12538 .is_ge()
12539 {
12540 break;
12541 }
12542 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12543 if let Some(current_row) = &end_row {
12544 if end.row == current_row.row {
12545 continue;
12546 }
12547 }
12548 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12549 if start_row.is_none() {
12550 assert_eq!(end_row, None);
12551 start_row = Some(start);
12552 end_row = Some(end);
12553 continue;
12554 }
12555 if let Some(current_end) = end_row.as_mut() {
12556 if start.row > current_end.row + 1 {
12557 push_region(start_row, end_row);
12558 start_row = Some(start);
12559 end_row = Some(end);
12560 } else {
12561 // Merge two hunks.
12562 *current_end = end;
12563 }
12564 } else {
12565 unreachable!();
12566 }
12567 }
12568 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12569 push_region(start_row, end_row);
12570 results
12571 }
12572
12573 pub fn gutter_highlights_in_range(
12574 &self,
12575 search_range: Range<Anchor>,
12576 display_snapshot: &DisplaySnapshot,
12577 cx: &AppContext,
12578 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12579 let mut results = Vec::new();
12580 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12581 let color = color_fetcher(cx);
12582 let start_ix = match ranges.binary_search_by(|probe| {
12583 let cmp = probe
12584 .end
12585 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12586 if cmp.is_gt() {
12587 Ordering::Greater
12588 } else {
12589 Ordering::Less
12590 }
12591 }) {
12592 Ok(i) | Err(i) => i,
12593 };
12594 for range in &ranges[start_ix..] {
12595 if range
12596 .start
12597 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12598 .is_ge()
12599 {
12600 break;
12601 }
12602
12603 let start = range.start.to_display_point(display_snapshot);
12604 let end = range.end.to_display_point(display_snapshot);
12605 results.push((start..end, color))
12606 }
12607 }
12608 results
12609 }
12610
12611 /// Get the text ranges corresponding to the redaction query
12612 pub fn redacted_ranges(
12613 &self,
12614 search_range: Range<Anchor>,
12615 display_snapshot: &DisplaySnapshot,
12616 cx: &WindowContext,
12617 ) -> Vec<Range<DisplayPoint>> {
12618 display_snapshot
12619 .buffer_snapshot
12620 .redacted_ranges(search_range, |file| {
12621 if let Some(file) = file {
12622 file.is_private()
12623 && EditorSettings::get(
12624 Some(SettingsLocation {
12625 worktree_id: file.worktree_id(cx),
12626 path: file.path().as_ref(),
12627 }),
12628 cx,
12629 )
12630 .redact_private_values
12631 } else {
12632 false
12633 }
12634 })
12635 .map(|range| {
12636 range.start.to_display_point(display_snapshot)
12637 ..range.end.to_display_point(display_snapshot)
12638 })
12639 .collect()
12640 }
12641
12642 pub fn highlight_text<T: 'static>(
12643 &mut self,
12644 ranges: Vec<Range<Anchor>>,
12645 style: HighlightStyle,
12646 cx: &mut ViewContext<Self>,
12647 ) {
12648 self.display_map.update(cx, |map, _| {
12649 map.highlight_text(TypeId::of::<T>(), ranges, style)
12650 });
12651 cx.notify();
12652 }
12653
12654 pub(crate) fn highlight_inlays<T: 'static>(
12655 &mut self,
12656 highlights: Vec<InlayHighlight>,
12657 style: HighlightStyle,
12658 cx: &mut ViewContext<Self>,
12659 ) {
12660 self.display_map.update(cx, |map, _| {
12661 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12662 });
12663 cx.notify();
12664 }
12665
12666 pub fn text_highlights<'a, T: 'static>(
12667 &'a self,
12668 cx: &'a AppContext,
12669 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12670 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12671 }
12672
12673 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12674 let cleared = self
12675 .display_map
12676 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12677 if cleared {
12678 cx.notify();
12679 }
12680 }
12681
12682 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12683 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12684 && self.focus_handle.is_focused(cx)
12685 }
12686
12687 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12688 self.show_cursor_when_unfocused = is_enabled;
12689 cx.notify();
12690 }
12691
12692 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12693 cx.notify();
12694 }
12695
12696 fn on_buffer_event(
12697 &mut self,
12698 multibuffer: Model<MultiBuffer>,
12699 event: &multi_buffer::Event,
12700 cx: &mut ViewContext<Self>,
12701 ) {
12702 match event {
12703 multi_buffer::Event::Edited {
12704 singleton_buffer_edited,
12705 } => {
12706 self.scrollbar_marker_state.dirty = true;
12707 self.active_indent_guides_state.dirty = true;
12708 self.refresh_active_diagnostics(cx);
12709 self.refresh_code_actions(cx);
12710 if self.has_active_inline_completion() {
12711 self.update_visible_inline_completion(cx);
12712 }
12713 cx.emit(EditorEvent::BufferEdited);
12714 cx.emit(SearchEvent::MatchesInvalidated);
12715 if *singleton_buffer_edited {
12716 if let Some(project) = &self.project {
12717 let project = project.read(cx);
12718 #[allow(clippy::mutable_key_type)]
12719 let languages_affected = multibuffer
12720 .read(cx)
12721 .all_buffers()
12722 .into_iter()
12723 .filter_map(|buffer| {
12724 let buffer = buffer.read(cx);
12725 let language = buffer.language()?;
12726 if project.is_local()
12727 && project.language_servers_for_buffer(buffer, cx).count() == 0
12728 {
12729 None
12730 } else {
12731 Some(language)
12732 }
12733 })
12734 .cloned()
12735 .collect::<HashSet<_>>();
12736 if !languages_affected.is_empty() {
12737 self.refresh_inlay_hints(
12738 InlayHintRefreshReason::BufferEdited(languages_affected),
12739 cx,
12740 );
12741 }
12742 }
12743 }
12744
12745 let Some(project) = &self.project else { return };
12746 let (telemetry, is_via_ssh) = {
12747 let project = project.read(cx);
12748 let telemetry = project.client().telemetry().clone();
12749 let is_via_ssh = project.is_via_ssh();
12750 (telemetry, is_via_ssh)
12751 };
12752 refresh_linked_ranges(self, cx);
12753 telemetry.log_edit_event("editor", is_via_ssh);
12754 }
12755 multi_buffer::Event::ExcerptsAdded {
12756 buffer,
12757 predecessor,
12758 excerpts,
12759 } => {
12760 self.tasks_update_task = Some(self.refresh_runnables(cx));
12761 let buffer_id = buffer.read(cx).remote_id();
12762 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12763 if let Some(project) = &self.project {
12764 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12765 }
12766 }
12767 cx.emit(EditorEvent::ExcerptsAdded {
12768 buffer: buffer.clone(),
12769 predecessor: *predecessor,
12770 excerpts: excerpts.clone(),
12771 });
12772 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12773 }
12774 multi_buffer::Event::ExcerptsRemoved { ids } => {
12775 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12776 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12777 }
12778 multi_buffer::Event::ExcerptsEdited { ids } => {
12779 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12780 }
12781 multi_buffer::Event::ExcerptsExpanded { ids } => {
12782 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12783 }
12784 multi_buffer::Event::Reparsed(buffer_id) => {
12785 self.tasks_update_task = Some(self.refresh_runnables(cx));
12786
12787 cx.emit(EditorEvent::Reparsed(*buffer_id));
12788 }
12789 multi_buffer::Event::LanguageChanged(buffer_id) => {
12790 linked_editing_ranges::refresh_linked_ranges(self, cx);
12791 cx.emit(EditorEvent::Reparsed(*buffer_id));
12792 cx.notify();
12793 }
12794 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12795 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12796 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12797 cx.emit(EditorEvent::TitleChanged)
12798 }
12799 // multi_buffer::Event::DiffBaseChanged => {
12800 // self.scrollbar_marker_state.dirty = true;
12801 // cx.emit(EditorEvent::DiffBaseChanged);
12802 // cx.notify();
12803 // }
12804 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12805 multi_buffer::Event::DiagnosticsUpdated => {
12806 self.refresh_active_diagnostics(cx);
12807 self.scrollbar_marker_state.dirty = true;
12808 cx.notify();
12809 }
12810 _ => {}
12811 };
12812 }
12813
12814 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12815 cx.notify();
12816 }
12817
12818 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12819 self.tasks_update_task = Some(self.refresh_runnables(cx));
12820 self.refresh_inline_completion(true, false, cx);
12821 self.refresh_inlay_hints(
12822 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12823 self.selections.newest_anchor().head(),
12824 &self.buffer.read(cx).snapshot(cx),
12825 cx,
12826 )),
12827 cx,
12828 );
12829
12830 let old_cursor_shape = self.cursor_shape;
12831
12832 {
12833 let editor_settings = EditorSettings::get_global(cx);
12834 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12835 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12836 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12837 }
12838
12839 if old_cursor_shape != self.cursor_shape {
12840 cx.emit(EditorEvent::CursorShapeChanged);
12841 }
12842
12843 let project_settings = ProjectSettings::get_global(cx);
12844 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12845
12846 if self.mode == EditorMode::Full {
12847 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12848 if self.git_blame_inline_enabled != inline_blame_enabled {
12849 self.toggle_git_blame_inline_internal(false, cx);
12850 }
12851 }
12852
12853 cx.notify();
12854 }
12855
12856 pub fn set_searchable(&mut self, searchable: bool) {
12857 self.searchable = searchable;
12858 }
12859
12860 pub fn searchable(&self) -> bool {
12861 self.searchable
12862 }
12863
12864 fn open_proposed_changes_editor(
12865 &mut self,
12866 _: &OpenProposedChangesEditor,
12867 cx: &mut ViewContext<Self>,
12868 ) {
12869 let Some(workspace) = self.workspace() else {
12870 cx.propagate();
12871 return;
12872 };
12873
12874 let selections = self.selections.all::<usize>(cx);
12875 let buffer = self.buffer.read(cx);
12876 let mut new_selections_by_buffer = HashMap::default();
12877 for selection in selections {
12878 for (buffer, range, _) in
12879 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12880 {
12881 let mut range = range.to_point(buffer.read(cx));
12882 range.start.column = 0;
12883 range.end.column = buffer.read(cx).line_len(range.end.row);
12884 new_selections_by_buffer
12885 .entry(buffer)
12886 .or_insert(Vec::new())
12887 .push(range)
12888 }
12889 }
12890
12891 let proposed_changes_buffers = new_selections_by_buffer
12892 .into_iter()
12893 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12894 .collect::<Vec<_>>();
12895 let proposed_changes_editor = cx.new_view(|cx| {
12896 ProposedChangesEditor::new(
12897 "Proposed changes",
12898 proposed_changes_buffers,
12899 self.project.clone(),
12900 cx,
12901 )
12902 });
12903
12904 cx.window_context().defer(move |cx| {
12905 workspace.update(cx, |workspace, cx| {
12906 workspace.active_pane().update(cx, |pane, cx| {
12907 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12908 });
12909 });
12910 });
12911 }
12912
12913 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12914 self.open_excerpts_common(None, true, cx)
12915 }
12916
12917 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12918 self.open_excerpts_common(None, false, cx)
12919 }
12920
12921 fn open_excerpts_common(
12922 &mut self,
12923 jump_data: Option<JumpData>,
12924 split: bool,
12925 cx: &mut ViewContext<Self>,
12926 ) {
12927 let Some(workspace) = self.workspace() else {
12928 cx.propagate();
12929 return;
12930 };
12931
12932 if self.buffer.read(cx).is_singleton() {
12933 cx.propagate();
12934 return;
12935 }
12936
12937 let mut new_selections_by_buffer = HashMap::default();
12938 match &jump_data {
12939 Some(jump_data) => {
12940 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12941 if let Some(buffer) = multi_buffer_snapshot
12942 .buffer_id_for_excerpt(jump_data.excerpt_id)
12943 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12944 {
12945 let buffer_snapshot = buffer.read(cx).snapshot();
12946 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12947 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12948 } else {
12949 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12950 };
12951 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12952 new_selections_by_buffer.insert(
12953 buffer,
12954 (
12955 vec![jump_to_offset..jump_to_offset],
12956 Some(jump_data.line_offset_from_top),
12957 ),
12958 );
12959 }
12960 }
12961 None => {
12962 let selections = self.selections.all::<usize>(cx);
12963 let buffer = self.buffer.read(cx);
12964 for selection in selections {
12965 for (mut buffer_handle, mut range, _) in
12966 buffer.range_to_buffer_ranges(selection.range(), cx)
12967 {
12968 // When editing branch buffers, jump to the corresponding location
12969 // in their base buffer.
12970 let buffer = buffer_handle.read(cx);
12971 if let Some(base_buffer) = buffer.base_buffer() {
12972 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12973 buffer_handle = base_buffer;
12974 }
12975
12976 if selection.reversed {
12977 mem::swap(&mut range.start, &mut range.end);
12978 }
12979 new_selections_by_buffer
12980 .entry(buffer_handle)
12981 .or_insert((Vec::new(), None))
12982 .0
12983 .push(range)
12984 }
12985 }
12986 }
12987 }
12988
12989 if new_selections_by_buffer.is_empty() {
12990 return;
12991 }
12992
12993 // We defer the pane interaction because we ourselves are a workspace item
12994 // and activating a new item causes the pane to call a method on us reentrantly,
12995 // which panics if we're on the stack.
12996 cx.window_context().defer(move |cx| {
12997 workspace.update(cx, |workspace, cx| {
12998 let pane = if split {
12999 workspace.adjacent_pane(cx)
13000 } else {
13001 workspace.active_pane().clone()
13002 };
13003
13004 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
13005 let editor = buffer
13006 .read(cx)
13007 .file()
13008 .is_none()
13009 .then(|| {
13010 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
13011 // so `workspace.open_project_item` will never find them, always opening a new editor.
13012 // Instead, we try to activate the existing editor in the pane first.
13013 let (editor, pane_item_index) =
13014 pane.read(cx).items().enumerate().find_map(|(i, item)| {
13015 let editor = item.downcast::<Editor>()?;
13016 let singleton_buffer =
13017 editor.read(cx).buffer().read(cx).as_singleton()?;
13018 if singleton_buffer == buffer {
13019 Some((editor, i))
13020 } else {
13021 None
13022 }
13023 })?;
13024 pane.update(cx, |pane, cx| {
13025 pane.activate_item(pane_item_index, true, true, cx)
13026 });
13027 Some(editor)
13028 })
13029 .flatten()
13030 .unwrap_or_else(|| {
13031 workspace.open_project_item::<Self>(
13032 pane.clone(),
13033 buffer,
13034 true,
13035 true,
13036 cx,
13037 )
13038 });
13039
13040 editor.update(cx, |editor, cx| {
13041 let autoscroll = match scroll_offset {
13042 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
13043 None => Autoscroll::newest(),
13044 };
13045 let nav_history = editor.nav_history.take();
13046 editor.change_selections(Some(autoscroll), cx, |s| {
13047 s.select_ranges(ranges);
13048 });
13049 editor.nav_history = nav_history;
13050 });
13051 }
13052 })
13053 });
13054 }
13055
13056 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
13057 let snapshot = self.buffer.read(cx).read(cx);
13058 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
13059 Some(
13060 ranges
13061 .iter()
13062 .map(move |range| {
13063 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
13064 })
13065 .collect(),
13066 )
13067 }
13068
13069 fn selection_replacement_ranges(
13070 &self,
13071 range: Range<OffsetUtf16>,
13072 cx: &mut AppContext,
13073 ) -> Vec<Range<OffsetUtf16>> {
13074 let selections = self.selections.all::<OffsetUtf16>(cx);
13075 let newest_selection = selections
13076 .iter()
13077 .max_by_key(|selection| selection.id)
13078 .unwrap();
13079 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
13080 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
13081 let snapshot = self.buffer.read(cx).read(cx);
13082 selections
13083 .into_iter()
13084 .map(|mut selection| {
13085 selection.start.0 =
13086 (selection.start.0 as isize).saturating_add(start_delta) as usize;
13087 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
13088 snapshot.clip_offset_utf16(selection.start, Bias::Left)
13089 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
13090 })
13091 .collect()
13092 }
13093
13094 fn report_editor_event(
13095 &self,
13096 operation: &'static str,
13097 file_extension: Option<String>,
13098 cx: &AppContext,
13099 ) {
13100 if cfg!(any(test, feature = "test-support")) {
13101 return;
13102 }
13103
13104 let Some(project) = &self.project else { return };
13105
13106 // If None, we are in a file without an extension
13107 let file = self
13108 .buffer
13109 .read(cx)
13110 .as_singleton()
13111 .and_then(|b| b.read(cx).file());
13112 let file_extension = file_extension.or(file
13113 .as_ref()
13114 .and_then(|file| Path::new(file.file_name(cx)).extension())
13115 .and_then(|e| e.to_str())
13116 .map(|a| a.to_string()));
13117
13118 let vim_mode = cx
13119 .global::<SettingsStore>()
13120 .raw_user_settings()
13121 .get("vim_mode")
13122 == Some(&serde_json::Value::Bool(true));
13123
13124 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
13125 == language::language_settings::InlineCompletionProvider::Copilot;
13126 let copilot_enabled_for_language = self
13127 .buffer
13128 .read(cx)
13129 .settings_at(0, cx)
13130 .show_inline_completions;
13131
13132 let project = project.read(cx);
13133 let telemetry = project.client().telemetry().clone();
13134 telemetry.report_editor_event(
13135 file_extension,
13136 vim_mode,
13137 operation,
13138 copilot_enabled,
13139 copilot_enabled_for_language,
13140 project.is_via_ssh(),
13141 )
13142 }
13143
13144 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
13145 /// with each line being an array of {text, highlight} objects.
13146 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
13147 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
13148 return;
13149 };
13150
13151 #[derive(Serialize)]
13152 struct Chunk<'a> {
13153 text: String,
13154 highlight: Option<&'a str>,
13155 }
13156
13157 let snapshot = buffer.read(cx).snapshot();
13158 let range = self
13159 .selected_text_range(false, cx)
13160 .and_then(|selection| {
13161 if selection.range.is_empty() {
13162 None
13163 } else {
13164 Some(selection.range)
13165 }
13166 })
13167 .unwrap_or_else(|| 0..snapshot.len());
13168
13169 let chunks = snapshot.chunks(range, true);
13170 let mut lines = Vec::new();
13171 let mut line: VecDeque<Chunk> = VecDeque::new();
13172
13173 let Some(style) = self.style.as_ref() else {
13174 return;
13175 };
13176
13177 for chunk in chunks {
13178 let highlight = chunk
13179 .syntax_highlight_id
13180 .and_then(|id| id.name(&style.syntax));
13181 let mut chunk_lines = chunk.text.split('\n').peekable();
13182 while let Some(text) = chunk_lines.next() {
13183 let mut merged_with_last_token = false;
13184 if let Some(last_token) = line.back_mut() {
13185 if last_token.highlight == highlight {
13186 last_token.text.push_str(text);
13187 merged_with_last_token = true;
13188 }
13189 }
13190
13191 if !merged_with_last_token {
13192 line.push_back(Chunk {
13193 text: text.into(),
13194 highlight,
13195 });
13196 }
13197
13198 if chunk_lines.peek().is_some() {
13199 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13200 line.pop_front();
13201 }
13202 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13203 line.pop_back();
13204 }
13205
13206 lines.push(mem::take(&mut line));
13207 }
13208 }
13209 }
13210
13211 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13212 return;
13213 };
13214 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13215 }
13216
13217 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
13218 self.request_autoscroll(Autoscroll::newest(), cx);
13219 let position = self.selections.newest_display(cx).start;
13220 mouse_context_menu::deploy_context_menu(self, None, position, cx);
13221 }
13222
13223 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13224 &self.inlay_hint_cache
13225 }
13226
13227 pub fn replay_insert_event(
13228 &mut self,
13229 text: &str,
13230 relative_utf16_range: Option<Range<isize>>,
13231 cx: &mut ViewContext<Self>,
13232 ) {
13233 if !self.input_enabled {
13234 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13235 return;
13236 }
13237 if let Some(relative_utf16_range) = relative_utf16_range {
13238 let selections = self.selections.all::<OffsetUtf16>(cx);
13239 self.change_selections(None, cx, |s| {
13240 let new_ranges = selections.into_iter().map(|range| {
13241 let start = OffsetUtf16(
13242 range
13243 .head()
13244 .0
13245 .saturating_add_signed(relative_utf16_range.start),
13246 );
13247 let end = OffsetUtf16(
13248 range
13249 .head()
13250 .0
13251 .saturating_add_signed(relative_utf16_range.end),
13252 );
13253 start..end
13254 });
13255 s.select_ranges(new_ranges);
13256 });
13257 }
13258
13259 self.handle_input(text, cx);
13260 }
13261
13262 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13263 let Some(provider) = self.semantics_provider.as_ref() else {
13264 return false;
13265 };
13266
13267 let mut supports = false;
13268 self.buffer().read(cx).for_each_buffer(|buffer| {
13269 supports |= provider.supports_inlay_hints(buffer, cx);
13270 });
13271 supports
13272 }
13273
13274 pub fn focus(&self, cx: &mut WindowContext) {
13275 cx.focus(&self.focus_handle)
13276 }
13277
13278 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13279 self.focus_handle.is_focused(cx)
13280 }
13281
13282 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13283 cx.emit(EditorEvent::Focused);
13284
13285 if let Some(descendant) = self
13286 .last_focused_descendant
13287 .take()
13288 .and_then(|descendant| descendant.upgrade())
13289 {
13290 cx.focus(&descendant);
13291 } else {
13292 if let Some(blame) = self.blame.as_ref() {
13293 blame.update(cx, GitBlame::focus)
13294 }
13295
13296 self.blink_manager.update(cx, BlinkManager::enable);
13297 self.show_cursor_names(cx);
13298 self.buffer.update(cx, |buffer, cx| {
13299 buffer.finalize_last_transaction(cx);
13300 if self.leader_peer_id.is_none() {
13301 buffer.set_active_selections(
13302 &self.selections.disjoint_anchors(),
13303 self.selections.line_mode,
13304 self.cursor_shape,
13305 cx,
13306 );
13307 }
13308 });
13309 }
13310 }
13311
13312 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13313 cx.emit(EditorEvent::FocusedIn)
13314 }
13315
13316 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13317 if event.blurred != self.focus_handle {
13318 self.last_focused_descendant = Some(event.blurred);
13319 }
13320 }
13321
13322 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13323 self.blink_manager.update(cx, BlinkManager::disable);
13324 self.buffer
13325 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13326
13327 if let Some(blame) = self.blame.as_ref() {
13328 blame.update(cx, GitBlame::blur)
13329 }
13330 if !self.hover_state.focused(cx) {
13331 hide_hover(self, cx);
13332 }
13333
13334 self.hide_context_menu(cx);
13335 cx.emit(EditorEvent::Blurred);
13336 cx.notify();
13337 }
13338
13339 pub fn register_action<A: Action>(
13340 &mut self,
13341 listener: impl Fn(&A, &mut WindowContext) + 'static,
13342 ) -> Subscription {
13343 let id = self.next_editor_action_id.post_inc();
13344 let listener = Arc::new(listener);
13345 self.editor_actions.borrow_mut().insert(
13346 id,
13347 Box::new(move |cx| {
13348 let cx = cx.window_context();
13349 let listener = listener.clone();
13350 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13351 let action = action.downcast_ref().unwrap();
13352 if phase == DispatchPhase::Bubble {
13353 listener(action, cx)
13354 }
13355 })
13356 }),
13357 );
13358
13359 let editor_actions = self.editor_actions.clone();
13360 Subscription::new(move || {
13361 editor_actions.borrow_mut().remove(&id);
13362 })
13363 }
13364
13365 pub fn file_header_size(&self) -> u32 {
13366 FILE_HEADER_HEIGHT
13367 }
13368
13369 pub fn revert(
13370 &mut self,
13371 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13372 cx: &mut ViewContext<Self>,
13373 ) {
13374 self.buffer().update(cx, |multi_buffer, cx| {
13375 for (buffer_id, changes) in revert_changes {
13376 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13377 buffer.update(cx, |buffer, cx| {
13378 buffer.edit(
13379 changes.into_iter().map(|(range, text)| {
13380 (range, text.to_string().map(Arc::<str>::from))
13381 }),
13382 None,
13383 cx,
13384 );
13385 });
13386 }
13387 }
13388 });
13389 self.change_selections(None, cx, |selections| selections.refresh());
13390 }
13391
13392 pub fn to_pixel_point(
13393 &mut self,
13394 source: multi_buffer::Anchor,
13395 editor_snapshot: &EditorSnapshot,
13396 cx: &mut ViewContext<Self>,
13397 ) -> Option<gpui::Point<Pixels>> {
13398 let source_point = source.to_display_point(editor_snapshot);
13399 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13400 }
13401
13402 pub fn display_to_pixel_point(
13403 &self,
13404 source: DisplayPoint,
13405 editor_snapshot: &EditorSnapshot,
13406 cx: &WindowContext,
13407 ) -> Option<gpui::Point<Pixels>> {
13408 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13409 let text_layout_details = self.text_layout_details(cx);
13410 let scroll_top = text_layout_details
13411 .scroll_anchor
13412 .scroll_position(editor_snapshot)
13413 .y;
13414
13415 if source.row().as_f32() < scroll_top.floor() {
13416 return None;
13417 }
13418 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13419 let source_y = line_height * (source.row().as_f32() - scroll_top);
13420 Some(gpui::Point::new(source_x, source_y))
13421 }
13422
13423 pub fn has_active_completions_menu(&self) -> bool {
13424 self.context_menu.read().as_ref().map_or(false, |menu| {
13425 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13426 })
13427 }
13428
13429 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13430 self.addons
13431 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13432 }
13433
13434 pub fn unregister_addon<T: Addon>(&mut self) {
13435 self.addons.remove(&std::any::TypeId::of::<T>());
13436 }
13437
13438 pub fn addon<T: Addon>(&self) -> Option<&T> {
13439 let type_id = std::any::TypeId::of::<T>();
13440 self.addons
13441 .get(&type_id)
13442 .and_then(|item| item.to_any().downcast_ref::<T>())
13443 }
13444
13445 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13446 let text_layout_details = self.text_layout_details(cx);
13447 let style = &text_layout_details.editor_style;
13448 let font_id = cx.text_system().resolve_font(&style.text.font());
13449 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13450 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13451
13452 let em_width = cx
13453 .text_system()
13454 .typographic_bounds(font_id, font_size, 'm')
13455 .unwrap()
13456 .size
13457 .width;
13458
13459 gpui::Point::new(em_width, line_height)
13460 }
13461}
13462
13463fn get_unstaged_changes_for_buffers(
13464 project: &Model<Project>,
13465 buffers: impl IntoIterator<Item = Model<Buffer>>,
13466 cx: &mut ViewContext<Editor>,
13467) {
13468 let mut tasks = Vec::new();
13469 project.update(cx, |project, cx| {
13470 for buffer in buffers {
13471 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13472 }
13473 });
13474 cx.spawn(|this, mut cx| async move {
13475 let change_sets = futures::future::join_all(tasks).await;
13476 this.update(&mut cx, |this, cx| {
13477 for change_set in change_sets {
13478 if let Some(change_set) = change_set.log_err() {
13479 this.diff_map.add_change_set(change_set, cx);
13480 }
13481 }
13482 })
13483 .ok();
13484 })
13485 .detach();
13486}
13487
13488fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13489 let tab_size = tab_size.get() as usize;
13490 let mut width = offset;
13491
13492 for ch in text.chars() {
13493 width += if ch == '\t' {
13494 tab_size - (width % tab_size)
13495 } else {
13496 1
13497 };
13498 }
13499
13500 width - offset
13501}
13502
13503#[cfg(test)]
13504mod tests {
13505 use super::*;
13506
13507 #[test]
13508 fn test_string_size_with_expanded_tabs() {
13509 let nz = |val| NonZeroU32::new(val).unwrap();
13510 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13511 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13512 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13513 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13514 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13515 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13516 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13517 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13518 }
13519}
13520
13521/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13522struct WordBreakingTokenizer<'a> {
13523 input: &'a str,
13524}
13525
13526impl<'a> WordBreakingTokenizer<'a> {
13527 fn new(input: &'a str) -> Self {
13528 Self { input }
13529 }
13530}
13531
13532fn is_char_ideographic(ch: char) -> bool {
13533 use unicode_script::Script::*;
13534 use unicode_script::UnicodeScript;
13535 matches!(ch.script(), Han | Tangut | Yi)
13536}
13537
13538fn is_grapheme_ideographic(text: &str) -> bool {
13539 text.chars().any(is_char_ideographic)
13540}
13541
13542fn is_grapheme_whitespace(text: &str) -> bool {
13543 text.chars().any(|x| x.is_whitespace())
13544}
13545
13546fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13547 text.chars().next().map_or(false, |ch| {
13548 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13549 })
13550}
13551
13552#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13553struct WordBreakToken<'a> {
13554 token: &'a str,
13555 grapheme_len: usize,
13556 is_whitespace: bool,
13557}
13558
13559impl<'a> Iterator for WordBreakingTokenizer<'a> {
13560 /// Yields a span, the count of graphemes in the token, and whether it was
13561 /// whitespace. Note that it also breaks at word boundaries.
13562 type Item = WordBreakToken<'a>;
13563
13564 fn next(&mut self) -> Option<Self::Item> {
13565 use unicode_segmentation::UnicodeSegmentation;
13566 if self.input.is_empty() {
13567 return None;
13568 }
13569
13570 let mut iter = self.input.graphemes(true).peekable();
13571 let mut offset = 0;
13572 let mut graphemes = 0;
13573 if let Some(first_grapheme) = iter.next() {
13574 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13575 offset += first_grapheme.len();
13576 graphemes += 1;
13577 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13578 if let Some(grapheme) = iter.peek().copied() {
13579 if should_stay_with_preceding_ideograph(grapheme) {
13580 offset += grapheme.len();
13581 graphemes += 1;
13582 }
13583 }
13584 } else {
13585 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13586 let mut next_word_bound = words.peek().copied();
13587 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13588 next_word_bound = words.next();
13589 }
13590 while let Some(grapheme) = iter.peek().copied() {
13591 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13592 break;
13593 };
13594 if is_grapheme_whitespace(grapheme) != is_whitespace {
13595 break;
13596 };
13597 offset += grapheme.len();
13598 graphemes += 1;
13599 iter.next();
13600 }
13601 }
13602 let token = &self.input[..offset];
13603 self.input = &self.input[offset..];
13604 if is_whitespace {
13605 Some(WordBreakToken {
13606 token: " ",
13607 grapheme_len: 1,
13608 is_whitespace: true,
13609 })
13610 } else {
13611 Some(WordBreakToken {
13612 token,
13613 grapheme_len: graphemes,
13614 is_whitespace: false,
13615 })
13616 }
13617 } else {
13618 None
13619 }
13620 }
13621}
13622
13623#[test]
13624fn test_word_breaking_tokenizer() {
13625 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13626 ("", &[]),
13627 (" ", &[(" ", 1, true)]),
13628 ("Ʒ", &[("Ʒ", 1, false)]),
13629 ("Ǽ", &[("Ǽ", 1, false)]),
13630 ("⋑", &[("⋑", 1, false)]),
13631 ("⋑⋑", &[("⋑⋑", 2, false)]),
13632 (
13633 "原理，进而",
13634 &[
13635 ("原", 1, false),
13636 ("理，", 2, false),
13637 ("进", 1, false),
13638 ("而", 1, false),
13639 ],
13640 ),
13641 (
13642 "hello world",
13643 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13644 ),
13645 (
13646 "hello, world",
13647 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13648 ),
13649 (
13650 " hello world",
13651 &[
13652 (" ", 1, true),
13653 ("hello", 5, false),
13654 (" ", 1, true),
13655 ("world", 5, false),
13656 ],
13657 ),
13658 (
13659 "这是什么 \n 钢笔",
13660 &[
13661 ("这", 1, false),
13662 ("是", 1, false),
13663 ("什", 1, false),
13664 ("么", 1, false),
13665 (" ", 1, true),
13666 ("钢", 1, false),
13667 ("笔", 1, false),
13668 ],
13669 ),
13670 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13671 ];
13672
13673 for (input, result) in tests {
13674 assert_eq!(
13675 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13676 result
13677 .iter()
13678 .copied()
13679 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13680 token,
13681 grapheme_len,
13682 is_whitespace,
13683 })
13684 .collect::<Vec<_>>()
13685 );
13686 }
13687}
13688
13689fn wrap_with_prefix(
13690 line_prefix: String,
13691 unwrapped_text: String,
13692 wrap_column: usize,
13693 tab_size: NonZeroU32,
13694) -> String {
13695 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13696 let mut wrapped_text = String::new();
13697 let mut current_line = line_prefix.clone();
13698
13699 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13700 let mut current_line_len = line_prefix_len;
13701 for WordBreakToken {
13702 token,
13703 grapheme_len,
13704 is_whitespace,
13705 } in tokenizer
13706 {
13707 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13708 wrapped_text.push_str(current_line.trim_end());
13709 wrapped_text.push('\n');
13710 current_line.truncate(line_prefix.len());
13711 current_line_len = line_prefix_len;
13712 if !is_whitespace {
13713 current_line.push_str(token);
13714 current_line_len += grapheme_len;
13715 }
13716 } else if !is_whitespace {
13717 current_line.push_str(token);
13718 current_line_len += grapheme_len;
13719 } else if current_line_len != line_prefix_len {
13720 current_line.push(' ');
13721 current_line_len += 1;
13722 }
13723 }
13724
13725 if !current_line.is_empty() {
13726 wrapped_text.push_str(¤t_line);
13727 }
13728 wrapped_text
13729}
13730
13731#[test]
13732fn test_wrap_with_prefix() {
13733 assert_eq!(
13734 wrap_with_prefix(
13735 "# ".to_string(),
13736 "abcdefg".to_string(),
13737 4,
13738 NonZeroU32::new(4).unwrap()
13739 ),
13740 "# abcdefg"
13741 );
13742 assert_eq!(
13743 wrap_with_prefix(
13744 "".to_string(),
13745 "\thello world".to_string(),
13746 8,
13747 NonZeroU32::new(4).unwrap()
13748 ),
13749 "hello\nworld"
13750 );
13751 assert_eq!(
13752 wrap_with_prefix(
13753 "// ".to_string(),
13754 "xx \nyy zz aa bb cc".to_string(),
13755 12,
13756 NonZeroU32::new(4).unwrap()
13757 ),
13758 "// xx yy zz\n// aa bb cc"
13759 );
13760 assert_eq!(
13761 wrap_with_prefix(
13762 String::new(),
13763 "这是什么 \n 钢笔".to_string(),
13764 3,
13765 NonZeroU32::new(4).unwrap()
13766 ),
13767 "这是什\n么 钢\n笔"
13768 );
13769}
13770
13771fn hunks_for_selections(
13772 snapshot: &EditorSnapshot,
13773 selections: &[Selection<Point>],
13774) -> Vec<MultiBufferDiffHunk> {
13775 hunks_for_ranges(
13776 selections.iter().map(|selection| selection.range()),
13777 snapshot,
13778 )
13779}
13780
13781pub fn hunks_for_ranges(
13782 ranges: impl Iterator<Item = Range<Point>>,
13783 snapshot: &EditorSnapshot,
13784) -> Vec<MultiBufferDiffHunk> {
13785 let mut hunks = Vec::new();
13786 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13787 HashMap::default();
13788 for query_range in ranges {
13789 let query_rows =
13790 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13791 for hunk in snapshot.diff_map.diff_hunks_in_range(
13792 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13793 &snapshot.buffer_snapshot,
13794 ) {
13795 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13796 // when the caret is just above or just below the deleted hunk.
13797 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13798 let related_to_selection = if allow_adjacent {
13799 hunk.row_range.overlaps(&query_rows)
13800 || hunk.row_range.start == query_rows.end
13801 || hunk.row_range.end == query_rows.start
13802 } else {
13803 hunk.row_range.overlaps(&query_rows)
13804 };
13805 if related_to_selection {
13806 if !processed_buffer_rows
13807 .entry(hunk.buffer_id)
13808 .or_default()
13809 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13810 {
13811 continue;
13812 }
13813 hunks.push(hunk);
13814 }
13815 }
13816 }
13817
13818 hunks
13819}
13820
13821pub trait CollaborationHub {
13822 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13823 fn user_participant_indices<'a>(
13824 &self,
13825 cx: &'a AppContext,
13826 ) -> &'a HashMap<u64, ParticipantIndex>;
13827 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13828}
13829
13830impl CollaborationHub for Model<Project> {
13831 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13832 self.read(cx).collaborators()
13833 }
13834
13835 fn user_participant_indices<'a>(
13836 &self,
13837 cx: &'a AppContext,
13838 ) -> &'a HashMap<u64, ParticipantIndex> {
13839 self.read(cx).user_store().read(cx).participant_indices()
13840 }
13841
13842 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13843 let this = self.read(cx);
13844 let user_ids = this.collaborators().values().map(|c| c.user_id);
13845 this.user_store().read_with(cx, |user_store, cx| {
13846 user_store.participant_names(user_ids, cx)
13847 })
13848 }
13849}
13850
13851pub trait SemanticsProvider {
13852 fn hover(
13853 &self,
13854 buffer: &Model<Buffer>,
13855 position: text::Anchor,
13856 cx: &mut AppContext,
13857 ) -> Option<Task<Vec<project::Hover>>>;
13858
13859 fn inlay_hints(
13860 &self,
13861 buffer_handle: Model<Buffer>,
13862 range: Range<text::Anchor>,
13863 cx: &mut AppContext,
13864 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13865
13866 fn resolve_inlay_hint(
13867 &self,
13868 hint: InlayHint,
13869 buffer_handle: Model<Buffer>,
13870 server_id: LanguageServerId,
13871 cx: &mut AppContext,
13872 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13873
13874 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13875
13876 fn document_highlights(
13877 &self,
13878 buffer: &Model<Buffer>,
13879 position: text::Anchor,
13880 cx: &mut AppContext,
13881 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13882
13883 fn definitions(
13884 &self,
13885 buffer: &Model<Buffer>,
13886 position: text::Anchor,
13887 kind: GotoDefinitionKind,
13888 cx: &mut AppContext,
13889 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13890
13891 fn range_for_rename(
13892 &self,
13893 buffer: &Model<Buffer>,
13894 position: text::Anchor,
13895 cx: &mut AppContext,
13896 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13897
13898 fn perform_rename(
13899 &self,
13900 buffer: &Model<Buffer>,
13901 position: text::Anchor,
13902 new_name: String,
13903 cx: &mut AppContext,
13904 ) -> Option<Task<Result<ProjectTransaction>>>;
13905}
13906
13907pub trait CompletionProvider {
13908 fn completions(
13909 &self,
13910 buffer: &Model<Buffer>,
13911 buffer_position: text::Anchor,
13912 trigger: CompletionContext,
13913 cx: &mut ViewContext<Editor>,
13914 ) -> Task<Result<Vec<Completion>>>;
13915
13916 fn resolve_completions(
13917 &self,
13918 buffer: Model<Buffer>,
13919 completion_indices: Vec<usize>,
13920 completions: Arc<RwLock<Box<[Completion]>>>,
13921 cx: &mut ViewContext<Editor>,
13922 ) -> Task<Result<bool>>;
13923
13924 fn apply_additional_edits_for_completion(
13925 &self,
13926 buffer: Model<Buffer>,
13927 completion: Completion,
13928 push_to_history: bool,
13929 cx: &mut ViewContext<Editor>,
13930 ) -> Task<Result<Option<language::Transaction>>>;
13931
13932 fn is_completion_trigger(
13933 &self,
13934 buffer: &Model<Buffer>,
13935 position: language::Anchor,
13936 text: &str,
13937 trigger_in_words: bool,
13938 cx: &mut ViewContext<Editor>,
13939 ) -> bool;
13940
13941 fn sort_completions(&self) -> bool {
13942 true
13943 }
13944}
13945
13946pub trait CodeActionProvider {
13947 fn code_actions(
13948 &self,
13949 buffer: &Model<Buffer>,
13950 range: Range<text::Anchor>,
13951 cx: &mut WindowContext,
13952 ) -> Task<Result<Vec<CodeAction>>>;
13953
13954 fn apply_code_action(
13955 &self,
13956 buffer_handle: Model<Buffer>,
13957 action: CodeAction,
13958 excerpt_id: ExcerptId,
13959 push_to_history: bool,
13960 cx: &mut WindowContext,
13961 ) -> Task<Result<ProjectTransaction>>;
13962}
13963
13964impl CodeActionProvider for Model<Project> {
13965 fn code_actions(
13966 &self,
13967 buffer: &Model<Buffer>,
13968 range: Range<text::Anchor>,
13969 cx: &mut WindowContext,
13970 ) -> Task<Result<Vec<CodeAction>>> {
13971 self.update(cx, |project, cx| {
13972 project.code_actions(buffer, range, None, cx)
13973 })
13974 }
13975
13976 fn apply_code_action(
13977 &self,
13978 buffer_handle: Model<Buffer>,
13979 action: CodeAction,
13980 _excerpt_id: ExcerptId,
13981 push_to_history: bool,
13982 cx: &mut WindowContext,
13983 ) -> Task<Result<ProjectTransaction>> {
13984 self.update(cx, |project, cx| {
13985 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13986 })
13987 }
13988}
13989
13990fn snippet_completions(
13991 project: &Project,
13992 buffer: &Model<Buffer>,
13993 buffer_position: text::Anchor,
13994 cx: &mut AppContext,
13995) -> Task<Result<Vec<Completion>>> {
13996 let language = buffer.read(cx).language_at(buffer_position);
13997 let language_name = language.as_ref().map(|language| language.lsp_id());
13998 let snippet_store = project.snippets().read(cx);
13999 let snippets = snippet_store.snippets_for(language_name, cx);
14000
14001 if snippets.is_empty() {
14002 return Task::ready(Ok(vec![]));
14003 }
14004 let snapshot = buffer.read(cx).text_snapshot();
14005 let chars: String = snapshot
14006 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
14007 .collect();
14008
14009 let scope = language.map(|language| language.default_scope());
14010 let executor = cx.background_executor().clone();
14011
14012 cx.background_executor().spawn(async move {
14013 let classifier = CharClassifier::new(scope).for_completion(true);
14014 let mut last_word = chars
14015 .chars()
14016 .take_while(|c| classifier.is_word(*c))
14017 .collect::<String>();
14018 last_word = last_word.chars().rev().collect();
14019
14020 if last_word.is_empty() {
14021 return Ok(vec![]);
14022 }
14023
14024 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
14025 let to_lsp = |point: &text::Anchor| {
14026 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
14027 point_to_lsp(end)
14028 };
14029 let lsp_end = to_lsp(&buffer_position);
14030
14031 let candidates = snippets
14032 .iter()
14033 .enumerate()
14034 .flat_map(|(ix, snippet)| {
14035 snippet
14036 .prefix
14037 .iter()
14038 .map(move |prefix| StringMatchCandidate::new(ix, prefix.clone()))
14039 })
14040 .collect::<Vec<StringMatchCandidate>>();
14041
14042 let mut matches = fuzzy::match_strings(
14043 &candidates,
14044 &last_word,
14045 last_word.chars().any(|c| c.is_uppercase()),
14046 100,
14047 &Default::default(),
14048 executor,
14049 )
14050 .await;
14051
14052 // Remove all candidates where the query's start does not match the start of any word in the candidate
14053 if let Some(query_start) = last_word.chars().next() {
14054 matches.retain(|string_match| {
14055 split_words(&string_match.string).any(|word| {
14056 // Check that the first codepoint of the word as lowercase matches the first
14057 // codepoint of the query as lowercase
14058 word.chars()
14059 .flat_map(|codepoint| codepoint.to_lowercase())
14060 .zip(query_start.to_lowercase())
14061 .all(|(word_cp, query_cp)| word_cp == query_cp)
14062 })
14063 });
14064 }
14065
14066 let matched_strings = matches
14067 .into_iter()
14068 .map(|m| m.string)
14069 .collect::<HashSet<_>>();
14070
14071 let result: Vec<Completion> = snippets
14072 .into_iter()
14073 .filter_map(|snippet| {
14074 let matching_prefix = snippet
14075 .prefix
14076 .iter()
14077 .find(|prefix| matched_strings.contains(*prefix))?;
14078 let start = as_offset - last_word.len();
14079 let start = snapshot.anchor_before(start);
14080 let range = start..buffer_position;
14081 let lsp_start = to_lsp(&start);
14082 let lsp_range = lsp::Range {
14083 start: lsp_start,
14084 end: lsp_end,
14085 };
14086 Some(Completion {
14087 old_range: range,
14088 new_text: snippet.body.clone(),
14089 label: CodeLabel {
14090 text: matching_prefix.clone(),
14091 runs: vec![],
14092 filter_range: 0..matching_prefix.len(),
14093 },
14094 server_id: LanguageServerId(usize::MAX),
14095 documentation: snippet.description.clone().map(Documentation::SingleLine),
14096 lsp_completion: lsp::CompletionItem {
14097 label: snippet.prefix.first().unwrap().clone(),
14098 kind: Some(CompletionItemKind::SNIPPET),
14099 label_details: snippet.description.as_ref().map(|description| {
14100 lsp::CompletionItemLabelDetails {
14101 detail: Some(description.clone()),
14102 description: None,
14103 }
14104 }),
14105 insert_text_format: Some(InsertTextFormat::SNIPPET),
14106 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
14107 lsp::InsertReplaceEdit {
14108 new_text: snippet.body.clone(),
14109 insert: lsp_range,
14110 replace: lsp_range,
14111 },
14112 )),
14113 filter_text: Some(snippet.body.clone()),
14114 sort_text: Some(char::MAX.to_string()),
14115 ..Default::default()
14116 },
14117 confirm: None,
14118 })
14119 })
14120 .collect();
14121
14122 Ok(result)
14123 })
14124}
14125
14126impl CompletionProvider for Model<Project> {
14127 fn completions(
14128 &self,
14129 buffer: &Model<Buffer>,
14130 buffer_position: text::Anchor,
14131 options: CompletionContext,
14132 cx: &mut ViewContext<Editor>,
14133 ) -> Task<Result<Vec<Completion>>> {
14134 self.update(cx, |project, cx| {
14135 let snippets = snippet_completions(project, buffer, buffer_position, cx);
14136 let project_completions = project.completions(buffer, buffer_position, options, cx);
14137 cx.background_executor().spawn(async move {
14138 let mut completions = project_completions.await?;
14139 let snippets_completions = snippets.await?;
14140 completions.extend(snippets_completions);
14141 Ok(completions)
14142 })
14143 })
14144 }
14145
14146 fn resolve_completions(
14147 &self,
14148 buffer: Model<Buffer>,
14149 completion_indices: Vec<usize>,
14150 completions: Arc<RwLock<Box<[Completion]>>>,
14151 cx: &mut ViewContext<Editor>,
14152 ) -> Task<Result<bool>> {
14153 self.update(cx, |project, cx| {
14154 project.resolve_completions(buffer, completion_indices, completions, cx)
14155 })
14156 }
14157
14158 fn apply_additional_edits_for_completion(
14159 &self,
14160 buffer: Model<Buffer>,
14161 completion: Completion,
14162 push_to_history: bool,
14163 cx: &mut ViewContext<Editor>,
14164 ) -> Task<Result<Option<language::Transaction>>> {
14165 self.update(cx, |project, cx| {
14166 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
14167 })
14168 }
14169
14170 fn is_completion_trigger(
14171 &self,
14172 buffer: &Model<Buffer>,
14173 position: language::Anchor,
14174 text: &str,
14175 trigger_in_words: bool,
14176 cx: &mut ViewContext<Editor>,
14177 ) -> bool {
14178 if !EditorSettings::get_global(cx).show_completions_on_input {
14179 return false;
14180 }
14181
14182 let mut chars = text.chars();
14183 let char = if let Some(char) = chars.next() {
14184 char
14185 } else {
14186 return false;
14187 };
14188 if chars.next().is_some() {
14189 return false;
14190 }
14191
14192 let buffer = buffer.read(cx);
14193 let classifier = buffer
14194 .snapshot()
14195 .char_classifier_at(position)
14196 .for_completion(true);
14197 if trigger_in_words && classifier.is_word(char) {
14198 return true;
14199 }
14200
14201 buffer.completion_triggers().contains(text)
14202 }
14203}
14204
14205impl SemanticsProvider for Model<Project> {
14206 fn hover(
14207 &self,
14208 buffer: &Model<Buffer>,
14209 position: text::Anchor,
14210 cx: &mut AppContext,
14211 ) -> Option<Task<Vec<project::Hover>>> {
14212 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
14213 }
14214
14215 fn document_highlights(
14216 &self,
14217 buffer: &Model<Buffer>,
14218 position: text::Anchor,
14219 cx: &mut AppContext,
14220 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
14221 Some(self.update(cx, |project, cx| {
14222 project.document_highlights(buffer, position, cx)
14223 }))
14224 }
14225
14226 fn definitions(
14227 &self,
14228 buffer: &Model<Buffer>,
14229 position: text::Anchor,
14230 kind: GotoDefinitionKind,
14231 cx: &mut AppContext,
14232 ) -> Option<Task<Result<Vec<LocationLink>>>> {
14233 Some(self.update(cx, |project, cx| match kind {
14234 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
14235 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
14236 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
14237 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
14238 }))
14239 }
14240
14241 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
14242 // TODO: make this work for remote projects
14243 self.read(cx)
14244 .language_servers_for_buffer(buffer.read(cx), cx)
14245 .any(
14246 |(_, server)| match server.capabilities().inlay_hint_provider {
14247 Some(lsp::OneOf::Left(enabled)) => enabled,
14248 Some(lsp::OneOf::Right(_)) => true,
14249 None => false,
14250 },
14251 )
14252 }
14253
14254 fn inlay_hints(
14255 &self,
14256 buffer_handle: Model<Buffer>,
14257 range: Range<text::Anchor>,
14258 cx: &mut AppContext,
14259 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14260 Some(self.update(cx, |project, cx| {
14261 project.inlay_hints(buffer_handle, range, cx)
14262 }))
14263 }
14264
14265 fn resolve_inlay_hint(
14266 &self,
14267 hint: InlayHint,
14268 buffer_handle: Model<Buffer>,
14269 server_id: LanguageServerId,
14270 cx: &mut AppContext,
14271 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14272 Some(self.update(cx, |project, cx| {
14273 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14274 }))
14275 }
14276
14277 fn range_for_rename(
14278 &self,
14279 buffer: &Model<Buffer>,
14280 position: text::Anchor,
14281 cx: &mut AppContext,
14282 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14283 Some(self.update(cx, |project, cx| {
14284 project.prepare_rename(buffer.clone(), position, cx)
14285 }))
14286 }
14287
14288 fn perform_rename(
14289 &self,
14290 buffer: &Model<Buffer>,
14291 position: text::Anchor,
14292 new_name: String,
14293 cx: &mut AppContext,
14294 ) -> Option<Task<Result<ProjectTransaction>>> {
14295 Some(self.update(cx, |project, cx| {
14296 project.perform_rename(buffer.clone(), position, new_name, cx)
14297 }))
14298 }
14299}
14300
14301fn inlay_hint_settings(
14302 location: Anchor,
14303 snapshot: &MultiBufferSnapshot,
14304 cx: &mut ViewContext<'_, Editor>,
14305) -> InlayHintSettings {
14306 let file = snapshot.file_at(location);
14307 let language = snapshot.language_at(location).map(|l| l.name());
14308 language_settings(language, file, cx).inlay_hints
14309}
14310
14311fn consume_contiguous_rows(
14312 contiguous_row_selections: &mut Vec<Selection<Point>>,
14313 selection: &Selection<Point>,
14314 display_map: &DisplaySnapshot,
14315 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14316) -> (MultiBufferRow, MultiBufferRow) {
14317 contiguous_row_selections.push(selection.clone());
14318 let start_row = MultiBufferRow(selection.start.row);
14319 let mut end_row = ending_row(selection, display_map);
14320
14321 while let Some(next_selection) = selections.peek() {
14322 if next_selection.start.row <= end_row.0 {
14323 end_row = ending_row(next_selection, display_map);
14324 contiguous_row_selections.push(selections.next().unwrap().clone());
14325 } else {
14326 break;
14327 }
14328 }
14329 (start_row, end_row)
14330}
14331
14332fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14333 if next_selection.end.column > 0 || next_selection.is_empty() {
14334 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14335 } else {
14336 MultiBufferRow(next_selection.end.row)
14337 }
14338}
14339
14340impl EditorSnapshot {
14341 pub fn remote_selections_in_range<'a>(
14342 &'a self,
14343 range: &'a Range<Anchor>,
14344 collaboration_hub: &dyn CollaborationHub,
14345 cx: &'a AppContext,
14346 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14347 let participant_names = collaboration_hub.user_names(cx);
14348 let participant_indices = collaboration_hub.user_participant_indices(cx);
14349 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14350 let collaborators_by_replica_id = collaborators_by_peer_id
14351 .iter()
14352 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14353 .collect::<HashMap<_, _>>();
14354 self.buffer_snapshot
14355 .selections_in_range(range, false)
14356 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14357 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14358 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14359 let user_name = participant_names.get(&collaborator.user_id).cloned();
14360 Some(RemoteSelection {
14361 replica_id,
14362 selection,
14363 cursor_shape,
14364 line_mode,
14365 participant_index,
14366 peer_id: collaborator.peer_id,
14367 user_name,
14368 })
14369 })
14370 }
14371
14372 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14373 self.display_snapshot.buffer_snapshot.language_at(position)
14374 }
14375
14376 pub fn is_focused(&self) -> bool {
14377 self.is_focused
14378 }
14379
14380 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14381 self.placeholder_text.as_ref()
14382 }
14383
14384 pub fn scroll_position(&self) -> gpui::Point<f32> {
14385 self.scroll_anchor.scroll_position(&self.display_snapshot)
14386 }
14387
14388 fn gutter_dimensions(
14389 &self,
14390 font_id: FontId,
14391 font_size: Pixels,
14392 em_width: Pixels,
14393 em_advance: Pixels,
14394 max_line_number_width: Pixels,
14395 cx: &AppContext,
14396 ) -> GutterDimensions {
14397 if !self.show_gutter {
14398 return GutterDimensions::default();
14399 }
14400 let descent = cx.text_system().descent(font_id, font_size);
14401
14402 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14403 matches!(
14404 ProjectSettings::get_global(cx).git.git_gutter,
14405 Some(GitGutterSetting::TrackedFiles)
14406 )
14407 });
14408 let gutter_settings = EditorSettings::get_global(cx).gutter;
14409 let show_line_numbers = self
14410 .show_line_numbers
14411 .unwrap_or(gutter_settings.line_numbers);
14412 let line_gutter_width = if show_line_numbers {
14413 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14414 let min_width_for_number_on_gutter = em_advance * 4.0;
14415 max_line_number_width.max(min_width_for_number_on_gutter)
14416 } else {
14417 0.0.into()
14418 };
14419
14420 let show_code_actions = self
14421 .show_code_actions
14422 .unwrap_or(gutter_settings.code_actions);
14423
14424 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14425
14426 let git_blame_entries_width =
14427 self.git_blame_gutter_max_author_length
14428 .map(|max_author_length| {
14429 // Length of the author name, but also space for the commit hash,
14430 // the spacing and the timestamp.
14431 let max_char_count = max_author_length
14432 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14433 + 7 // length of commit sha
14434 + 14 // length of max relative timestamp ("60 minutes ago")
14435 + 4; // gaps and margins
14436
14437 em_advance * max_char_count
14438 });
14439
14440 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14441 left_padding += if show_code_actions || show_runnables {
14442 em_width * 3.0
14443 } else if show_git_gutter && show_line_numbers {
14444 em_width * 2.0
14445 } else if show_git_gutter || show_line_numbers {
14446 em_width
14447 } else {
14448 px(0.)
14449 };
14450
14451 let right_padding = if gutter_settings.folds && show_line_numbers {
14452 em_width * 4.0
14453 } else if gutter_settings.folds {
14454 em_width * 3.0
14455 } else if show_line_numbers {
14456 em_width
14457 } else {
14458 px(0.)
14459 };
14460
14461 GutterDimensions {
14462 left_padding,
14463 right_padding,
14464 width: line_gutter_width + left_padding + right_padding,
14465 margin: -descent,
14466 git_blame_entries_width,
14467 }
14468 }
14469
14470 pub fn render_crease_toggle(
14471 &self,
14472 buffer_row: MultiBufferRow,
14473 row_contains_cursor: bool,
14474 editor: View<Editor>,
14475 cx: &mut WindowContext,
14476 ) -> Option<AnyElement> {
14477 let folded = self.is_line_folded(buffer_row);
14478 let mut is_foldable = false;
14479
14480 if let Some(crease) = self
14481 .crease_snapshot
14482 .query_row(buffer_row, &self.buffer_snapshot)
14483 {
14484 is_foldable = true;
14485 match crease {
14486 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14487 if let Some(render_toggle) = render_toggle {
14488 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14489 if folded {
14490 editor.update(cx, |editor, cx| {
14491 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14492 });
14493 } else {
14494 editor.update(cx, |editor, cx| {
14495 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14496 });
14497 }
14498 });
14499 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14500 }
14501 }
14502 }
14503 }
14504
14505 is_foldable |= self.starts_indent(buffer_row);
14506
14507 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14508 Some(
14509 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14510 .selected(folded)
14511 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14512 if folded {
14513 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14514 } else {
14515 this.fold_at(&FoldAt { buffer_row }, cx);
14516 }
14517 }))
14518 .into_any_element(),
14519 )
14520 } else {
14521 None
14522 }
14523 }
14524
14525 pub fn render_crease_trailer(
14526 &self,
14527 buffer_row: MultiBufferRow,
14528 cx: &mut WindowContext,
14529 ) -> Option<AnyElement> {
14530 let folded = self.is_line_folded(buffer_row);
14531 if let Crease::Inline { render_trailer, .. } = self
14532 .crease_snapshot
14533 .query_row(buffer_row, &self.buffer_snapshot)?
14534 {
14535 let render_trailer = render_trailer.as_ref()?;
14536 Some(render_trailer(buffer_row, folded, cx))
14537 } else {
14538 None
14539 }
14540 }
14541}
14542
14543impl Deref for EditorSnapshot {
14544 type Target = DisplaySnapshot;
14545
14546 fn deref(&self) -> &Self::Target {
14547 &self.display_snapshot
14548 }
14549}
14550
14551#[derive(Clone, Debug, PartialEq, Eq)]
14552pub enum EditorEvent {
14553 InputIgnored {
14554 text: Arc<str>,
14555 },
14556 InputHandled {
14557 utf16_range_to_replace: Option<Range<isize>>,
14558 text: Arc<str>,
14559 },
14560 ExcerptsAdded {
14561 buffer: Model<Buffer>,
14562 predecessor: ExcerptId,
14563 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14564 },
14565 ExcerptsRemoved {
14566 ids: Vec<ExcerptId>,
14567 },
14568 ExcerptsEdited {
14569 ids: Vec<ExcerptId>,
14570 },
14571 ExcerptsExpanded {
14572 ids: Vec<ExcerptId>,
14573 },
14574 BufferEdited,
14575 Edited {
14576 transaction_id: clock::Lamport,
14577 },
14578 Reparsed(BufferId),
14579 Focused,
14580 FocusedIn,
14581 Blurred,
14582 DirtyChanged,
14583 Saved,
14584 TitleChanged,
14585 DiffBaseChanged,
14586 SelectionsChanged {
14587 local: bool,
14588 },
14589 ScrollPositionChanged {
14590 local: bool,
14591 autoscroll: bool,
14592 },
14593 Closed,
14594 TransactionUndone {
14595 transaction_id: clock::Lamport,
14596 },
14597 TransactionBegun {
14598 transaction_id: clock::Lamport,
14599 },
14600 Reloaded,
14601 CursorShapeChanged,
14602}
14603
14604impl EventEmitter<EditorEvent> for Editor {}
14605
14606impl FocusableView for Editor {
14607 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14608 self.focus_handle.clone()
14609 }
14610}
14611
14612impl Render for Editor {
14613 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14614 let settings = ThemeSettings::get_global(cx);
14615
14616 let mut text_style = match self.mode {
14617 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14618 color: cx.theme().colors().editor_foreground,
14619 font_family: settings.ui_font.family.clone(),
14620 font_features: settings.ui_font.features.clone(),
14621 font_fallbacks: settings.ui_font.fallbacks.clone(),
14622 font_size: rems(0.875).into(),
14623 font_weight: settings.ui_font.weight,
14624 line_height: relative(settings.buffer_line_height.value()),
14625 ..Default::default()
14626 },
14627 EditorMode::Full => TextStyle {
14628 color: cx.theme().colors().editor_foreground,
14629 font_family: settings.buffer_font.family.clone(),
14630 font_features: settings.buffer_font.features.clone(),
14631 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14632 font_size: settings.buffer_font_size(cx).into(),
14633 font_weight: settings.buffer_font.weight,
14634 line_height: relative(settings.buffer_line_height.value()),
14635 ..Default::default()
14636 },
14637 };
14638 if let Some(text_style_refinement) = &self.text_style_refinement {
14639 text_style.refine(text_style_refinement)
14640 }
14641
14642 let background = match self.mode {
14643 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14644 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14645 EditorMode::Full => cx.theme().colors().editor_background,
14646 };
14647
14648 EditorElement::new(
14649 cx.view(),
14650 EditorStyle {
14651 background,
14652 local_player: cx.theme().players().local(),
14653 text: text_style,
14654 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14655 syntax: cx.theme().syntax().clone(),
14656 status: cx.theme().status().clone(),
14657 inlay_hints_style: make_inlay_hints_style(cx),
14658 suggestions_style: HighlightStyle {
14659 color: Some(cx.theme().status().predictive),
14660 ..HighlightStyle::default()
14661 },
14662 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14663 },
14664 )
14665 }
14666}
14667
14668impl ViewInputHandler for Editor {
14669 fn text_for_range(
14670 &mut self,
14671 range_utf16: Range<usize>,
14672 adjusted_range: &mut Option<Range<usize>>,
14673 cx: &mut ViewContext<Self>,
14674 ) -> Option<String> {
14675 let snapshot = self.buffer.read(cx).read(cx);
14676 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14677 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14678 if (start.0..end.0) != range_utf16 {
14679 adjusted_range.replace(start.0..end.0);
14680 }
14681 Some(snapshot.text_for_range(start..end).collect())
14682 }
14683
14684 fn selected_text_range(
14685 &mut self,
14686 ignore_disabled_input: bool,
14687 cx: &mut ViewContext<Self>,
14688 ) -> Option<UTF16Selection> {
14689 // Prevent the IME menu from appearing when holding down an alphabetic key
14690 // while input is disabled.
14691 if !ignore_disabled_input && !self.input_enabled {
14692 return None;
14693 }
14694
14695 let selection = self.selections.newest::<OffsetUtf16>(cx);
14696 let range = selection.range();
14697
14698 Some(UTF16Selection {
14699 range: range.start.0..range.end.0,
14700 reversed: selection.reversed,
14701 })
14702 }
14703
14704 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14705 let snapshot = self.buffer.read(cx).read(cx);
14706 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14707 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14708 }
14709
14710 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14711 self.clear_highlights::<InputComposition>(cx);
14712 self.ime_transaction.take();
14713 }
14714
14715 fn replace_text_in_range(
14716 &mut self,
14717 range_utf16: Option<Range<usize>>,
14718 text: &str,
14719 cx: &mut ViewContext<Self>,
14720 ) {
14721 if !self.input_enabled {
14722 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14723 return;
14724 }
14725
14726 self.transact(cx, |this, cx| {
14727 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14728 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14729 Some(this.selection_replacement_ranges(range_utf16, cx))
14730 } else {
14731 this.marked_text_ranges(cx)
14732 };
14733
14734 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14735 let newest_selection_id = this.selections.newest_anchor().id;
14736 this.selections
14737 .all::<OffsetUtf16>(cx)
14738 .iter()
14739 .zip(ranges_to_replace.iter())
14740 .find_map(|(selection, range)| {
14741 if selection.id == newest_selection_id {
14742 Some(
14743 (range.start.0 as isize - selection.head().0 as isize)
14744 ..(range.end.0 as isize - selection.head().0 as isize),
14745 )
14746 } else {
14747 None
14748 }
14749 })
14750 });
14751
14752 cx.emit(EditorEvent::InputHandled {
14753 utf16_range_to_replace: range_to_replace,
14754 text: text.into(),
14755 });
14756
14757 if let Some(new_selected_ranges) = new_selected_ranges {
14758 this.change_selections(None, cx, |selections| {
14759 selections.select_ranges(new_selected_ranges)
14760 });
14761 this.backspace(&Default::default(), cx);
14762 }
14763
14764 this.handle_input(text, cx);
14765 });
14766
14767 if let Some(transaction) = self.ime_transaction {
14768 self.buffer.update(cx, |buffer, cx| {
14769 buffer.group_until_transaction(transaction, cx);
14770 });
14771 }
14772
14773 self.unmark_text(cx);
14774 }
14775
14776 fn replace_and_mark_text_in_range(
14777 &mut self,
14778 range_utf16: Option<Range<usize>>,
14779 text: &str,
14780 new_selected_range_utf16: Option<Range<usize>>,
14781 cx: &mut ViewContext<Self>,
14782 ) {
14783 if !self.input_enabled {
14784 return;
14785 }
14786
14787 let transaction = self.transact(cx, |this, cx| {
14788 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14789 let snapshot = this.buffer.read(cx).read(cx);
14790 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14791 for marked_range in &mut marked_ranges {
14792 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14793 marked_range.start.0 += relative_range_utf16.start;
14794 marked_range.start =
14795 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14796 marked_range.end =
14797 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14798 }
14799 }
14800 Some(marked_ranges)
14801 } else if let Some(range_utf16) = range_utf16 {
14802 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14803 Some(this.selection_replacement_ranges(range_utf16, cx))
14804 } else {
14805 None
14806 };
14807
14808 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14809 let newest_selection_id = this.selections.newest_anchor().id;
14810 this.selections
14811 .all::<OffsetUtf16>(cx)
14812 .iter()
14813 .zip(ranges_to_replace.iter())
14814 .find_map(|(selection, range)| {
14815 if selection.id == newest_selection_id {
14816 Some(
14817 (range.start.0 as isize - selection.head().0 as isize)
14818 ..(range.end.0 as isize - selection.head().0 as isize),
14819 )
14820 } else {
14821 None
14822 }
14823 })
14824 });
14825
14826 cx.emit(EditorEvent::InputHandled {
14827 utf16_range_to_replace: range_to_replace,
14828 text: text.into(),
14829 });
14830
14831 if let Some(ranges) = ranges_to_replace {
14832 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14833 }
14834
14835 let marked_ranges = {
14836 let snapshot = this.buffer.read(cx).read(cx);
14837 this.selections
14838 .disjoint_anchors()
14839 .iter()
14840 .map(|selection| {
14841 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14842 })
14843 .collect::<Vec<_>>()
14844 };
14845
14846 if text.is_empty() {
14847 this.unmark_text(cx);
14848 } else {
14849 this.highlight_text::<InputComposition>(
14850 marked_ranges.clone(),
14851 HighlightStyle {
14852 underline: Some(UnderlineStyle {
14853 thickness: px(1.),
14854 color: None,
14855 wavy: false,
14856 }),
14857 ..Default::default()
14858 },
14859 cx,
14860 );
14861 }
14862
14863 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14864 let use_autoclose = this.use_autoclose;
14865 let use_auto_surround = this.use_auto_surround;
14866 this.set_use_autoclose(false);
14867 this.set_use_auto_surround(false);
14868 this.handle_input(text, cx);
14869 this.set_use_autoclose(use_autoclose);
14870 this.set_use_auto_surround(use_auto_surround);
14871
14872 if let Some(new_selected_range) = new_selected_range_utf16 {
14873 let snapshot = this.buffer.read(cx).read(cx);
14874 let new_selected_ranges = marked_ranges
14875 .into_iter()
14876 .map(|marked_range| {
14877 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14878 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14879 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14880 snapshot.clip_offset_utf16(new_start, Bias::Left)
14881 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14882 })
14883 .collect::<Vec<_>>();
14884
14885 drop(snapshot);
14886 this.change_selections(None, cx, |selections| {
14887 selections.select_ranges(new_selected_ranges)
14888 });
14889 }
14890 });
14891
14892 self.ime_transaction = self.ime_transaction.or(transaction);
14893 if let Some(transaction) = self.ime_transaction {
14894 self.buffer.update(cx, |buffer, cx| {
14895 buffer.group_until_transaction(transaction, cx);
14896 });
14897 }
14898
14899 if self.text_highlights::<InputComposition>(cx).is_none() {
14900 self.ime_transaction.take();
14901 }
14902 }
14903
14904 fn bounds_for_range(
14905 &mut self,
14906 range_utf16: Range<usize>,
14907 element_bounds: gpui::Bounds<Pixels>,
14908 cx: &mut ViewContext<Self>,
14909 ) -> Option<gpui::Bounds<Pixels>> {
14910 let text_layout_details = self.text_layout_details(cx);
14911 let gpui::Point {
14912 x: em_width,
14913 y: line_height,
14914 } = self.character_size(cx);
14915
14916 let snapshot = self.snapshot(cx);
14917 let scroll_position = snapshot.scroll_position();
14918 let scroll_left = scroll_position.x * em_width;
14919
14920 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14921 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14922 + self.gutter_dimensions.width
14923 + self.gutter_dimensions.margin;
14924 let y = line_height * (start.row().as_f32() - scroll_position.y);
14925
14926 Some(Bounds {
14927 origin: element_bounds.origin + point(x, y),
14928 size: size(em_width, line_height),
14929 })
14930 }
14931}
14932
14933trait SelectionExt {
14934 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14935 fn spanned_rows(
14936 &self,
14937 include_end_if_at_line_start: bool,
14938 map: &DisplaySnapshot,
14939 ) -> Range<MultiBufferRow>;
14940}
14941
14942impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14943 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14944 let start = self
14945 .start
14946 .to_point(&map.buffer_snapshot)
14947 .to_display_point(map);
14948 let end = self
14949 .end
14950 .to_point(&map.buffer_snapshot)
14951 .to_display_point(map);
14952 if self.reversed {
14953 end..start
14954 } else {
14955 start..end
14956 }
14957 }
14958
14959 fn spanned_rows(
14960 &self,
14961 include_end_if_at_line_start: bool,
14962 map: &DisplaySnapshot,
14963 ) -> Range<MultiBufferRow> {
14964 let start = self.start.to_point(&map.buffer_snapshot);
14965 let mut end = self.end.to_point(&map.buffer_snapshot);
14966 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14967 end.row -= 1;
14968 }
14969
14970 let buffer_start = map.prev_line_boundary(start).0;
14971 let buffer_end = map.next_line_boundary(end).0;
14972 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14973 }
14974}
14975
14976impl<T: InvalidationRegion> InvalidationStack<T> {
14977 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14978 where
14979 S: Clone + ToOffset,
14980 {
14981 while let Some(region) = self.last() {
14982 let all_selections_inside_invalidation_ranges =
14983 if selections.len() == region.ranges().len() {
14984 selections
14985 .iter()
14986 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14987 .all(|(selection, invalidation_range)| {
14988 let head = selection.head().to_offset(buffer);
14989 invalidation_range.start <= head && invalidation_range.end >= head
14990 })
14991 } else {
14992 false
14993 };
14994
14995 if all_selections_inside_invalidation_ranges {
14996 break;
14997 } else {
14998 self.pop();
14999 }
15000 }
15001 }
15002}
15003
15004impl<T> Default for InvalidationStack<T> {
15005 fn default() -> Self {
15006 Self(Default::default())
15007 }
15008}
15009
15010impl<T> Deref for InvalidationStack<T> {
15011 type Target = Vec<T>;
15012
15013 fn deref(&self) -> &Self::Target {
15014 &self.0
15015 }
15016}
15017
15018impl<T> DerefMut for InvalidationStack<T> {
15019 fn deref_mut(&mut self) -> &mut Self::Target {
15020 &mut self.0
15021 }
15022}
15023
15024impl InvalidationRegion for SnippetState {
15025 fn ranges(&self) -> &[Range<Anchor>] {
15026 &self.ranges[self.active_index]
15027 }
15028}
15029
15030pub fn diagnostic_block_renderer(
15031 diagnostic: Diagnostic,
15032 max_message_rows: Option<u8>,
15033 allow_closing: bool,
15034 _is_valid: bool,
15035) -> RenderBlock {
15036 let (text_without_backticks, code_ranges) =
15037 highlight_diagnostic_message(&diagnostic, max_message_rows);
15038
15039 Arc::new(move |cx: &mut BlockContext| {
15040 let group_id: SharedString = cx.block_id.to_string().into();
15041
15042 let mut text_style = cx.text_style().clone();
15043 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
15044 let theme_settings = ThemeSettings::get_global(cx);
15045 text_style.font_family = theme_settings.buffer_font.family.clone();
15046 text_style.font_style = theme_settings.buffer_font.style;
15047 text_style.font_features = theme_settings.buffer_font.features.clone();
15048 text_style.font_weight = theme_settings.buffer_font.weight;
15049
15050 let multi_line_diagnostic = diagnostic.message.contains('\n');
15051
15052 let buttons = |diagnostic: &Diagnostic| {
15053 if multi_line_diagnostic {
15054 v_flex()
15055 } else {
15056 h_flex()
15057 }
15058 .when(allow_closing, |div| {
15059 div.children(diagnostic.is_primary.then(|| {
15060 IconButton::new("close-block", IconName::XCircle)
15061 .icon_color(Color::Muted)
15062 .size(ButtonSize::Compact)
15063 .style(ButtonStyle::Transparent)
15064 .visible_on_hover(group_id.clone())
15065 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
15066 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
15067 }))
15068 })
15069 .child(
15070 IconButton::new("copy-block", IconName::Copy)
15071 .icon_color(Color::Muted)
15072 .size(ButtonSize::Compact)
15073 .style(ButtonStyle::Transparent)
15074 .visible_on_hover(group_id.clone())
15075 .on_click({
15076 let message = diagnostic.message.clone();
15077 move |_click, cx| {
15078 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
15079 }
15080 })
15081 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
15082 )
15083 };
15084
15085 let icon_size = buttons(&diagnostic)
15086 .into_any_element()
15087 .layout_as_root(AvailableSpace::min_size(), cx);
15088
15089 h_flex()
15090 .id(cx.block_id)
15091 .group(group_id.clone())
15092 .relative()
15093 .size_full()
15094 .block_mouse_down()
15095 .pl(cx.gutter_dimensions.width)
15096 .w(cx.max_width - cx.gutter_dimensions.full_width())
15097 .child(
15098 div()
15099 .flex()
15100 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
15101 .flex_shrink(),
15102 )
15103 .child(buttons(&diagnostic))
15104 .child(div().flex().flex_shrink_0().child(
15105 StyledText::new(text_without_backticks.clone()).with_highlights(
15106 &text_style,
15107 code_ranges.iter().map(|range| {
15108 (
15109 range.clone(),
15110 HighlightStyle {
15111 font_weight: Some(FontWeight::BOLD),
15112 ..Default::default()
15113 },
15114 )
15115 }),
15116 ),
15117 ))
15118 .into_any_element()
15119 })
15120}
15121
15122pub fn highlight_diagnostic_message(
15123 diagnostic: &Diagnostic,
15124 mut max_message_rows: Option<u8>,
15125) -> (SharedString, Vec<Range<usize>>) {
15126 let mut text_without_backticks = String::new();
15127 let mut code_ranges = Vec::new();
15128
15129 if let Some(source) = &diagnostic.source {
15130 text_without_backticks.push_str(source);
15131 code_ranges.push(0..source.len());
15132 text_without_backticks.push_str(": ");
15133 }
15134
15135 let mut prev_offset = 0;
15136 let mut in_code_block = false;
15137 let has_row_limit = max_message_rows.is_some();
15138 let mut newline_indices = diagnostic
15139 .message
15140 .match_indices('\n')
15141 .filter(|_| has_row_limit)
15142 .map(|(ix, _)| ix)
15143 .fuse()
15144 .peekable();
15145
15146 for (quote_ix, _) in diagnostic
15147 .message
15148 .match_indices('`')
15149 .chain([(diagnostic.message.len(), "")])
15150 {
15151 let mut first_newline_ix = None;
15152 let mut last_newline_ix = None;
15153 while let Some(newline_ix) = newline_indices.peek() {
15154 if *newline_ix < quote_ix {
15155 if first_newline_ix.is_none() {
15156 first_newline_ix = Some(*newline_ix);
15157 }
15158 last_newline_ix = Some(*newline_ix);
15159
15160 if let Some(rows_left) = &mut max_message_rows {
15161 if *rows_left == 0 {
15162 break;
15163 } else {
15164 *rows_left -= 1;
15165 }
15166 }
15167 let _ = newline_indices.next();
15168 } else {
15169 break;
15170 }
15171 }
15172 let prev_len = text_without_backticks.len();
15173 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
15174 text_without_backticks.push_str(new_text);
15175 if in_code_block {
15176 code_ranges.push(prev_len..text_without_backticks.len());
15177 }
15178 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
15179 in_code_block = !in_code_block;
15180 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
15181 text_without_backticks.push_str("...");
15182 break;
15183 }
15184 }
15185
15186 (text_without_backticks.into(), code_ranges)
15187}
15188
15189fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
15190 match severity {
15191 DiagnosticSeverity::ERROR => colors.error,
15192 DiagnosticSeverity::WARNING => colors.warning,
15193 DiagnosticSeverity::INFORMATION => colors.info,
15194 DiagnosticSeverity::HINT => colors.info,
15195 _ => colors.ignored,
15196 }
15197}
15198
15199pub fn styled_runs_for_code_label<'a>(
15200 label: &'a CodeLabel,
15201 syntax_theme: &'a theme::SyntaxTheme,
15202) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
15203 let fade_out = HighlightStyle {
15204 fade_out: Some(0.35),
15205 ..Default::default()
15206 };
15207
15208 let mut prev_end = label.filter_range.end;
15209 label
15210 .runs
15211 .iter()
15212 .enumerate()
15213 .flat_map(move |(ix, (range, highlight_id))| {
15214 let style = if let Some(style) = highlight_id.style(syntax_theme) {
15215 style
15216 } else {
15217 return Default::default();
15218 };
15219 let mut muted_style = style;
15220 muted_style.highlight(fade_out);
15221
15222 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
15223 if range.start >= label.filter_range.end {
15224 if range.start > prev_end {
15225 runs.push((prev_end..range.start, fade_out));
15226 }
15227 runs.push((range.clone(), muted_style));
15228 } else if range.end <= label.filter_range.end {
15229 runs.push((range.clone(), style));
15230 } else {
15231 runs.push((range.start..label.filter_range.end, style));
15232 runs.push((label.filter_range.end..range.end, muted_style));
15233 }
15234 prev_end = cmp::max(prev_end, range.end);
15235
15236 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15237 runs.push((prev_end..label.text.len(), fade_out));
15238 }
15239
15240 runs
15241 })
15242}
15243
15244pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15245 let mut prev_index = 0;
15246 let mut prev_codepoint: Option<char> = None;
15247 text.char_indices()
15248 .chain([(text.len(), '\0')])
15249 .filter_map(move |(index, codepoint)| {
15250 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15251 let is_boundary = index == text.len()
15252 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15253 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15254 if is_boundary {
15255 let chunk = &text[prev_index..index];
15256 prev_index = index;
15257 Some(chunk)
15258 } else {
15259 None
15260 }
15261 })
15262}
15263
15264pub trait RangeToAnchorExt: Sized {
15265 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15266
15267 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15268 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15269 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15270 }
15271}
15272
15273impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15274 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15275 let start_offset = self.start.to_offset(snapshot);
15276 let end_offset = self.end.to_offset(snapshot);
15277 if start_offset == end_offset {
15278 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15279 } else {
15280 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15281 }
15282 }
15283}
15284
15285pub trait RowExt {
15286 fn as_f32(&self) -> f32;
15287
15288 fn next_row(&self) -> Self;
15289
15290 fn previous_row(&self) -> Self;
15291
15292 fn minus(&self, other: Self) -> u32;
15293}
15294
15295impl RowExt for DisplayRow {
15296 fn as_f32(&self) -> f32 {
15297 self.0 as f32
15298 }
15299
15300 fn next_row(&self) -> Self {
15301 Self(self.0 + 1)
15302 }
15303
15304 fn previous_row(&self) -> Self {
15305 Self(self.0.saturating_sub(1))
15306 }
15307
15308 fn minus(&self, other: Self) -> u32 {
15309 self.0 - other.0
15310 }
15311}
15312
15313impl RowExt for MultiBufferRow {
15314 fn as_f32(&self) -> f32 {
15315 self.0 as f32
15316 }
15317
15318 fn next_row(&self) -> Self {
15319 Self(self.0 + 1)
15320 }
15321
15322 fn previous_row(&self) -> Self {
15323 Self(self.0.saturating_sub(1))
15324 }
15325
15326 fn minus(&self, other: Self) -> u32 {
15327 self.0 - other.0
15328 }
15329}
15330
15331trait RowRangeExt {
15332 type Row;
15333
15334 fn len(&self) -> usize;
15335
15336 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15337}
15338
15339impl RowRangeExt for Range<MultiBufferRow> {
15340 type Row = MultiBufferRow;
15341
15342 fn len(&self) -> usize {
15343 (self.end.0 - self.start.0) as usize
15344 }
15345
15346 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15347 (self.start.0..self.end.0).map(MultiBufferRow)
15348 }
15349}
15350
15351impl RowRangeExt for Range<DisplayRow> {
15352 type Row = DisplayRow;
15353
15354 fn len(&self) -> usize {
15355 (self.end.0 - self.start.0) as usize
15356 }
15357
15358 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15359 (self.start.0..self.end.0).map(DisplayRow)
15360 }
15361}
15362
15363fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15364 if hunk.diff_base_byte_range.is_empty() {
15365 DiffHunkStatus::Added
15366 } else if hunk.row_range.is_empty() {
15367 DiffHunkStatus::Removed
15368 } else {
15369 DiffHunkStatus::Modified
15370 }
15371}
15372
15373/// If select range has more than one line, we
15374/// just point the cursor to range.start.
15375fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15376 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15377 range
15378 } else {
15379 range.start..range.start
15380 }
15381}
15382
15383pub struct KillRing(ClipboardItem);
15384impl Global for KillRing {}
15385
15386const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);