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;
19mod code_context_menus;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45#[cfg(test)]
46mod inline_completion_tests;
47mod signature_help;
48#[cfg(any(test, feature = "test-support"))]
49pub mod test;
50
51use ::git::diff::DiffHunkStatus;
52pub(crate) use actions::*;
53pub use actions::{OpenExcerpts, OpenExcerptsSplit};
54use aho_corasick::AhoCorasick;
55use anyhow::{anyhow, Context as _, Result};
56use blink_manager::BlinkManager;
57use client::{Collaborator, ParticipantIndex};
58use clock::ReplicaId;
59use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
60use convert_case::{Case, Casing};
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::StringMatchCandidate;
73
74use code_context_menus::{
75 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
76 CompletionEntry, CompletionsMenu, ContextMenuOrigin,
77};
78use git::blame::GitBlame;
79use gpui::{
80 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
81 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
82 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
83 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
84 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
85 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
86 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
87 WeakView, WindowContext,
88};
89use highlight_matching_bracket::refresh_matching_bracket_highlights;
90use hover_popover::{hide_hover, HoverState};
91pub(crate) use hunk_diff::HoveredHunk;
92use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
93use indent_guides::ActiveIndentGuidesState;
94use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
95pub use inline_completion::Direction;
96use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
97pub use items::MAX_TAB_TITLE_LEN;
98use itertools::Itertools;
99use language::{
100 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
101 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
102 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
103 Point, Selection, SelectionGoal, TransactionId,
104};
105use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
106use linked_editing_ranges::refresh_linked_ranges;
107use mouse_context_menu::MouseContextMenu;
108pub use proposed_changes_editor::{
109 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
110};
111use similar::{ChangeTag, TextDiff};
112use std::iter::Peekable;
113use task::{ResolvedTask, TaskTemplate, TaskVariables};
114
115use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
116pub use lsp::CompletionContext;
117use lsp::{
118 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
119 LanguageServerId, LanguageServerName,
120};
121
122use movement::TextLayoutDetails;
123pub use multi_buffer::{
124 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
125 ToPoint,
126};
127use multi_buffer::{
128 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
129};
130use project::{
131 lsp_store::{FormatTarget, FormatTrigger, OpenLspBufferHandle},
132 project_settings::{GitGutterSetting, ProjectSettings},
133 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
134 LspStore, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
135};
136use rand::prelude::*;
137use rpc::{proto::*, ErrorExt};
138use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
139use selections_collection::{
140 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
141};
142use serde::{Deserialize, Serialize};
143use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
144use smallvec::SmallVec;
145use snippet::Snippet;
146use std::{
147 any::TypeId,
148 borrow::Cow,
149 cell::RefCell,
150 cmp::{self, Ordering, Reverse},
151 mem,
152 num::NonZeroU32,
153 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
154 path::{Path, PathBuf},
155 rc::Rc,
156 sync::Arc,
157 time::{Duration, Instant},
158};
159pub use sum_tree::Bias;
160use sum_tree::TreeMap;
161use text::{BufferId, OffsetUtf16, Rope};
162use theme::{
163 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
164 ThemeColors, ThemeSettings,
165};
166use ui::{
167 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
168 PopoverMenuHandle, Tooltip,
169};
170use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
171use workspace::item::{ItemHandle, PreviewTabsSettings};
172use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
173use workspace::{
174 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
175};
176use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
177
178use crate::hover_links::{find_url, find_url_from_range};
179use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
180
181pub const FILE_HEADER_HEIGHT: u32 = 2;
182pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
183pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
184pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
185const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
186const MAX_LINE_LEN: usize = 1024;
187const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
188const MAX_SELECTION_HISTORY_LEN: usize = 1024;
189pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
190#[doc(hidden)]
191pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
192
193pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
194pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
195
196pub fn render_parsed_markdown(
197 element_id: impl Into<ElementId>,
198 parsed: &language::ParsedMarkdown,
199 editor_style: &EditorStyle,
200 workspace: Option<WeakView<Workspace>>,
201 cx: &mut WindowContext,
202) -> InteractiveText {
203 let code_span_background_color = cx
204 .theme()
205 .colors()
206 .editor_document_highlight_read_background;
207
208 let highlights = gpui::combine_highlights(
209 parsed.highlights.iter().filter_map(|(range, highlight)| {
210 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
211 Some((range.clone(), highlight))
212 }),
213 parsed
214 .regions
215 .iter()
216 .zip(&parsed.region_ranges)
217 .filter_map(|(region, range)| {
218 if region.code {
219 Some((
220 range.clone(),
221 HighlightStyle {
222 background_color: Some(code_span_background_color),
223 ..Default::default()
224 },
225 ))
226 } else {
227 None
228 }
229 }),
230 );
231
232 let mut links = Vec::new();
233 let mut link_ranges = Vec::new();
234 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
235 if let Some(link) = region.link.clone() {
236 links.push(link);
237 link_ranges.push(range.clone());
238 }
239 }
240
241 InteractiveText::new(
242 element_id,
243 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
244 )
245 .on_click(link_ranges, move |clicked_range_ix, cx| {
246 match &links[clicked_range_ix] {
247 markdown::Link::Web { url } => cx.open_url(url),
248 markdown::Link::Path { path } => {
249 if let Some(workspace) = &workspace {
250 _ = workspace.update(cx, |workspace, cx| {
251 workspace.open_abs_path(path.clone(), false, cx).detach();
252 });
253 }
254 }
255 }
256 })
257}
258
259#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
260pub(crate) enum InlayId {
261 InlineCompletion(usize),
262 Hint(usize),
263}
264
265impl InlayId {
266 fn id(&self) -> usize {
267 match self {
268 Self::InlineCompletion(id) => *id,
269 Self::Hint(id) => *id,
270 }
271 }
272}
273
274enum DiffRowHighlight {}
275enum DocumentHighlightRead {}
276enum DocumentHighlightWrite {}
277enum InputComposition {}
278
279#[derive(Debug, Copy, Clone, PartialEq, Eq)]
280pub enum Navigated {
281 Yes,
282 No,
283}
284
285impl Navigated {
286 pub fn from_bool(yes: bool) -> Navigated {
287 if yes {
288 Navigated::Yes
289 } else {
290 Navigated::No
291 }
292 }
293}
294
295pub fn init_settings(cx: &mut AppContext) {
296 EditorSettings::register(cx);
297}
298
299pub fn init(cx: &mut AppContext) {
300 init_settings(cx);
301
302 workspace::register_project_item::<Editor>(cx);
303 workspace::FollowableViewRegistry::register::<Editor>(cx);
304 workspace::register_serializable_item::<Editor>(cx);
305
306 cx.observe_new_views(
307 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
308 workspace.register_action(Editor::new_file);
309 workspace.register_action(Editor::new_file_vertical);
310 workspace.register_action(Editor::new_file_horizontal);
311 },
312 )
313 .detach();
314
315 cx.on_action(move |_: &workspace::NewFile, cx| {
316 let app_state = workspace::AppState::global(cx);
317 if let Some(app_state) = app_state.upgrade() {
318 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
319 Editor::new_file(workspace, &Default::default(), cx)
320 })
321 .detach();
322 }
323 });
324 cx.on_action(move |_: &workspace::NewWindow, cx| {
325 let app_state = workspace::AppState::global(cx);
326 if let Some(app_state) = app_state.upgrade() {
327 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
328 Editor::new_file(workspace, &Default::default(), cx)
329 })
330 .detach();
331 }
332 });
333 git::project_diff::init(cx);
334}
335
336pub struct SearchWithinRange;
337
338trait InvalidationRegion {
339 fn ranges(&self) -> &[Range<Anchor>];
340}
341
342#[derive(Clone, Debug, PartialEq)]
343pub enum SelectPhase {
344 Begin {
345 position: DisplayPoint,
346 add: bool,
347 click_count: usize,
348 },
349 BeginColumnar {
350 position: DisplayPoint,
351 reset: bool,
352 goal_column: u32,
353 },
354 Extend {
355 position: DisplayPoint,
356 click_count: usize,
357 },
358 Update {
359 position: DisplayPoint,
360 goal_column: u32,
361 scroll_delta: gpui::Point<f32>,
362 },
363 End,
364}
365
366#[derive(Clone, Debug)]
367pub enum SelectMode {
368 Character,
369 Word(Range<Anchor>),
370 Line(Range<Anchor>),
371 All,
372}
373
374#[derive(Copy, Clone, PartialEq, Eq, Debug)]
375pub enum EditorMode {
376 SingleLine { auto_width: bool },
377 AutoHeight { max_lines: usize },
378 Full,
379}
380
381#[derive(Copy, Clone, Debug)]
382pub enum SoftWrap {
383 /// Prefer not to wrap at all.
384 ///
385 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
386 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
387 GitDiff,
388 /// Prefer a single line generally, unless an overly long line is encountered.
389 None,
390 /// Soft wrap lines that exceed the editor width.
391 EditorWidth,
392 /// Soft wrap lines at the preferred line length.
393 Column(u32),
394 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
395 Bounded(u32),
396}
397
398#[derive(Clone)]
399pub struct EditorStyle {
400 pub background: Hsla,
401 pub local_player: PlayerColor,
402 pub text: TextStyle,
403 pub scrollbar_width: Pixels,
404 pub syntax: Arc<SyntaxTheme>,
405 pub status: StatusColors,
406 pub inlay_hints_style: HighlightStyle,
407 pub inline_completion_styles: InlineCompletionStyles,
408 pub unnecessary_code_fade: f32,
409}
410
411impl Default for EditorStyle {
412 fn default() -> Self {
413 Self {
414 background: Hsla::default(),
415 local_player: PlayerColor::default(),
416 text: TextStyle::default(),
417 scrollbar_width: Pixels::default(),
418 syntax: Default::default(),
419 // HACK: Status colors don't have a real default.
420 // We should look into removing the status colors from the editor
421 // style and retrieve them directly from the theme.
422 status: StatusColors::dark(),
423 inlay_hints_style: HighlightStyle::default(),
424 inline_completion_styles: InlineCompletionStyles {
425 insertion: HighlightStyle::default(),
426 whitespace: HighlightStyle::default(),
427 },
428 unnecessary_code_fade: Default::default(),
429 }
430 }
431}
432
433pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
434 let show_background = language_settings::language_settings(None, None, cx)
435 .inlay_hints
436 .show_background;
437
438 HighlightStyle {
439 color: Some(cx.theme().status().hint),
440 background_color: show_background.then(|| cx.theme().status().hint_background),
441 ..HighlightStyle::default()
442 }
443}
444
445pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
446 InlineCompletionStyles {
447 insertion: HighlightStyle {
448 color: Some(cx.theme().status().predictive),
449 ..HighlightStyle::default()
450 },
451 whitespace: HighlightStyle {
452 background_color: Some(cx.theme().status().created_background),
453 ..HighlightStyle::default()
454 },
455 }
456}
457
458type CompletionId = usize;
459
460#[derive(Debug, Clone)]
461struct InlineCompletionMenuHint {
462 provider_name: &'static str,
463 text: InlineCompletionText,
464}
465
466#[derive(Clone, Debug)]
467enum InlineCompletionText {
468 Move(SharedString),
469 Edit {
470 text: SharedString,
471 highlights: Vec<(Range<usize>, HighlightStyle)>,
472 },
473}
474
475enum InlineCompletion {
476 Edit(Vec<(Range<Anchor>, String)>),
477 Move(Anchor),
478}
479
480struct InlineCompletionState {
481 inlay_ids: Vec<InlayId>,
482 completion: InlineCompletion,
483 invalidation_range: Range<Anchor>,
484}
485
486enum InlineCompletionHighlight {}
487
488#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
489struct EditorActionId(usize);
490
491impl EditorActionId {
492 pub fn post_inc(&mut self) -> Self {
493 let answer = self.0;
494
495 *self = Self(answer + 1);
496
497 Self(answer)
498 }
499}
500
501// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
502// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
503
504type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
505type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
506
507#[derive(Default)]
508struct ScrollbarMarkerState {
509 scrollbar_size: Size<Pixels>,
510 dirty: bool,
511 markers: Arc<[PaintQuad]>,
512 pending_refresh: Option<Task<Result<()>>>,
513}
514
515impl ScrollbarMarkerState {
516 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
517 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
518 }
519}
520
521#[derive(Clone, Debug)]
522struct RunnableTasks {
523 templates: Vec<(TaskSourceKind, TaskTemplate)>,
524 offset: MultiBufferOffset,
525 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
526 column: u32,
527 // Values of all named captures, including those starting with '_'
528 extra_variables: HashMap<String, String>,
529 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
530 context_range: Range<BufferOffset>,
531}
532
533impl RunnableTasks {
534 fn resolve<'a>(
535 &'a self,
536 cx: &'a task::TaskContext,
537 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
538 self.templates.iter().filter_map(|(kind, template)| {
539 template
540 .resolve_task(&kind.to_id_base(), cx)
541 .map(|task| (kind.clone(), task))
542 })
543 }
544}
545
546#[derive(Clone)]
547struct ResolvedTasks {
548 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
549 position: Anchor,
550}
551#[derive(Copy, Clone, Debug)]
552struct MultiBufferOffset(usize);
553#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
554struct BufferOffset(usize);
555
556// Addons allow storing per-editor state in other crates (e.g. Vim)
557pub trait Addon: 'static {
558 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
559
560 fn to_any(&self) -> &dyn std::any::Any;
561}
562
563#[derive(Debug, Copy, Clone, PartialEq, Eq)]
564pub enum IsVimMode {
565 Yes,
566 No,
567}
568
569/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
570///
571/// See the [module level documentation](self) for more information.
572pub struct Editor {
573 focus_handle: FocusHandle,
574 last_focused_descendant: Option<WeakFocusHandle>,
575 /// The text buffer being edited
576 buffer: Model<MultiBuffer>,
577 /// Map of how text in the buffer should be displayed.
578 /// Handles soft wraps, folds, fake inlay text insertions, etc.
579 pub display_map: Model<DisplayMap>,
580 pub selections: SelectionsCollection,
581 pub scroll_manager: ScrollManager,
582 /// When inline assist editors are linked, they all render cursors because
583 /// typing enters text into each of them, even the ones that aren't focused.
584 pub(crate) show_cursor_when_unfocused: bool,
585 columnar_selection_tail: Option<Anchor>,
586 add_selections_state: Option<AddSelectionsState>,
587 select_next_state: Option<SelectNextState>,
588 select_prev_state: Option<SelectNextState>,
589 selection_history: SelectionHistory,
590 autoclose_regions: Vec<AutocloseRegion>,
591 snippet_stack: InvalidationStack<SnippetState>,
592 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
593 ime_transaction: Option<TransactionId>,
594 active_diagnostics: Option<ActiveDiagnosticGroup>,
595 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
596
597 project: Option<Model<Project>>,
598 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
599 completion_provider: Option<Box<dyn CompletionProvider>>,
600 collaboration_hub: Option<Box<dyn CollaborationHub>>,
601 blink_manager: Model<BlinkManager>,
602 show_cursor_names: bool,
603 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
604 pub show_local_selections: bool,
605 mode: EditorMode,
606 show_breadcrumbs: bool,
607 show_gutter: bool,
608 show_line_numbers: Option<bool>,
609 use_relative_line_numbers: Option<bool>,
610 show_git_diff_gutter: Option<bool>,
611 show_code_actions: Option<bool>,
612 show_runnables: Option<bool>,
613 show_wrap_guides: Option<bool>,
614 show_indent_guides: Option<bool>,
615 placeholder_text: Option<Arc<str>>,
616 highlight_order: usize,
617 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
618 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
619 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
620 scrollbar_marker_state: ScrollbarMarkerState,
621 active_indent_guides_state: ActiveIndentGuidesState,
622 nav_history: Option<ItemNavHistory>,
623 context_menu: RefCell<Option<CodeContextMenu>>,
624 mouse_context_menu: Option<MouseContextMenu>,
625 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
626 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
627 signature_help_state: SignatureHelpState,
628 auto_signature_help: Option<bool>,
629 find_all_references_task_sources: Vec<Anchor>,
630 next_completion_id: CompletionId,
631 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
632 code_actions_task: Option<Task<Result<()>>>,
633 document_highlights_task: Option<Task<()>>,
634 linked_editing_range_task: Option<Task<Option<()>>>,
635 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
636 pending_rename: Option<RenameState>,
637 searchable: bool,
638 cursor_shape: CursorShape,
639 current_line_highlight: Option<CurrentLineHighlight>,
640 collapse_matches: bool,
641 autoindent_mode: Option<AutoindentMode>,
642 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
643 input_enabled: bool,
644 use_modal_editing: bool,
645 read_only: bool,
646 leader_peer_id: Option<PeerId>,
647 remote_id: Option<ViewId>,
648 hover_state: HoverState,
649 gutter_hovered: bool,
650 hovered_link_state: Option<HoveredLinkState>,
651 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
652 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
653 active_inline_completion: Option<InlineCompletionState>,
654 // enable_inline_completions is a switch that Vim can use to disable
655 // inline completions based on its mode.
656 enable_inline_completions: bool,
657 show_inline_completions_override: Option<bool>,
658 inlay_hint_cache: InlayHintCache,
659 diff_map: DiffMap,
660 next_inlay_id: usize,
661 _subscriptions: Vec<Subscription>,
662 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
663 gutter_dimensions: GutterDimensions,
664 style: Option<EditorStyle>,
665 text_style_refinement: Option<TextStyleRefinement>,
666 next_editor_action_id: EditorActionId,
667 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
668 use_autoclose: bool,
669 use_auto_surround: bool,
670 auto_replace_emoji_shortcode: bool,
671 show_git_blame_gutter: bool,
672 show_git_blame_inline: bool,
673 show_git_blame_inline_delay_task: Option<Task<()>>,
674 git_blame_inline_enabled: bool,
675 serialize_dirty_buffers: bool,
676 show_selection_menu: Option<bool>,
677 blame: Option<Model<GitBlame>>,
678 blame_subscription: Option<Subscription>,
679 custom_context_menu: Option<
680 Box<
681 dyn 'static
682 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
683 >,
684 >,
685 last_bounds: Option<Bounds<Pixels>>,
686 expect_bounds_change: Option<Bounds<Pixels>>,
687 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
688 tasks_update_task: Option<Task<()>>,
689 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
690 breadcrumb_header: Option<String>,
691 focused_block: Option<FocusedBlock>,
692 next_scroll_position: NextScrollCursorCenterTopBottom,
693 addons: HashMap<TypeId, Box<dyn Addon>>,
694 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
695 toggle_fold_multiple_buffers: Task<()>,
696 _scroll_cursor_center_top_bottom_task: Task<()>,
697}
698
699#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
700enum NextScrollCursorCenterTopBottom {
701 #[default]
702 Center,
703 Top,
704 Bottom,
705}
706
707impl NextScrollCursorCenterTopBottom {
708 fn next(&self) -> Self {
709 match self {
710 Self::Center => Self::Top,
711 Self::Top => Self::Bottom,
712 Self::Bottom => Self::Center,
713 }
714 }
715}
716
717#[derive(Clone)]
718pub struct EditorSnapshot {
719 pub mode: EditorMode,
720 show_gutter: bool,
721 show_line_numbers: Option<bool>,
722 show_git_diff_gutter: Option<bool>,
723 show_code_actions: Option<bool>,
724 show_runnables: Option<bool>,
725 git_blame_gutter_max_author_length: Option<usize>,
726 pub display_snapshot: DisplaySnapshot,
727 pub placeholder_text: Option<Arc<str>>,
728 diff_map: DiffMapSnapshot,
729 is_focused: bool,
730 scroll_anchor: ScrollAnchor,
731 ongoing_scroll: OngoingScroll,
732 current_line_highlight: CurrentLineHighlight,
733 gutter_hovered: bool,
734}
735
736const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
737
738#[derive(Default, Debug, Clone, Copy)]
739pub struct GutterDimensions {
740 pub left_padding: Pixels,
741 pub right_padding: Pixels,
742 pub width: Pixels,
743 pub margin: Pixels,
744 pub git_blame_entries_width: Option<Pixels>,
745}
746
747impl GutterDimensions {
748 /// The full width of the space taken up by the gutter.
749 pub fn full_width(&self) -> Pixels {
750 self.margin + self.width
751 }
752
753 /// The width of the space reserved for the fold indicators,
754 /// use alongside 'justify_end' and `gutter_width` to
755 /// right align content with the line numbers
756 pub fn fold_area_width(&self) -> Pixels {
757 self.margin + self.right_padding
758 }
759}
760
761#[derive(Debug)]
762pub struct RemoteSelection {
763 pub replica_id: ReplicaId,
764 pub selection: Selection<Anchor>,
765 pub cursor_shape: CursorShape,
766 pub peer_id: PeerId,
767 pub line_mode: bool,
768 pub participant_index: Option<ParticipantIndex>,
769 pub user_name: Option<SharedString>,
770}
771
772#[derive(Clone, Debug)]
773struct SelectionHistoryEntry {
774 selections: Arc<[Selection<Anchor>]>,
775 select_next_state: Option<SelectNextState>,
776 select_prev_state: Option<SelectNextState>,
777 add_selections_state: Option<AddSelectionsState>,
778}
779
780enum SelectionHistoryMode {
781 Normal,
782 Undoing,
783 Redoing,
784}
785
786#[derive(Clone, PartialEq, Eq, Hash)]
787struct HoveredCursor {
788 replica_id: u16,
789 selection_id: usize,
790}
791
792impl Default for SelectionHistoryMode {
793 fn default() -> Self {
794 Self::Normal
795 }
796}
797
798#[derive(Default)]
799struct SelectionHistory {
800 #[allow(clippy::type_complexity)]
801 selections_by_transaction:
802 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
803 mode: SelectionHistoryMode,
804 undo_stack: VecDeque<SelectionHistoryEntry>,
805 redo_stack: VecDeque<SelectionHistoryEntry>,
806}
807
808impl SelectionHistory {
809 fn insert_transaction(
810 &mut self,
811 transaction_id: TransactionId,
812 selections: Arc<[Selection<Anchor>]>,
813 ) {
814 self.selections_by_transaction
815 .insert(transaction_id, (selections, None));
816 }
817
818 #[allow(clippy::type_complexity)]
819 fn transaction(
820 &self,
821 transaction_id: TransactionId,
822 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
823 self.selections_by_transaction.get(&transaction_id)
824 }
825
826 #[allow(clippy::type_complexity)]
827 fn transaction_mut(
828 &mut self,
829 transaction_id: TransactionId,
830 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
831 self.selections_by_transaction.get_mut(&transaction_id)
832 }
833
834 fn push(&mut self, entry: SelectionHistoryEntry) {
835 if !entry.selections.is_empty() {
836 match self.mode {
837 SelectionHistoryMode::Normal => {
838 self.push_undo(entry);
839 self.redo_stack.clear();
840 }
841 SelectionHistoryMode::Undoing => self.push_redo(entry),
842 SelectionHistoryMode::Redoing => self.push_undo(entry),
843 }
844 }
845 }
846
847 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
848 if self
849 .undo_stack
850 .back()
851 .map_or(true, |e| e.selections != entry.selections)
852 {
853 self.undo_stack.push_back(entry);
854 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
855 self.undo_stack.pop_front();
856 }
857 }
858 }
859
860 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
861 if self
862 .redo_stack
863 .back()
864 .map_or(true, |e| e.selections != entry.selections)
865 {
866 self.redo_stack.push_back(entry);
867 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
868 self.redo_stack.pop_front();
869 }
870 }
871 }
872}
873
874struct RowHighlight {
875 index: usize,
876 range: Range<Anchor>,
877 color: Hsla,
878 should_autoscroll: bool,
879}
880
881#[derive(Clone, Debug)]
882struct AddSelectionsState {
883 above: bool,
884 stack: Vec<usize>,
885}
886
887#[derive(Clone)]
888struct SelectNextState {
889 query: AhoCorasick,
890 wordwise: bool,
891 done: bool,
892}
893
894impl std::fmt::Debug for SelectNextState {
895 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
896 f.debug_struct(std::any::type_name::<Self>())
897 .field("wordwise", &self.wordwise)
898 .field("done", &self.done)
899 .finish()
900 }
901}
902
903#[derive(Debug)]
904struct AutocloseRegion {
905 selection_id: usize,
906 range: Range<Anchor>,
907 pair: BracketPair,
908}
909
910#[derive(Debug)]
911struct SnippetState {
912 ranges: Vec<Vec<Range<Anchor>>>,
913 active_index: usize,
914 choices: Vec<Option<Vec<String>>>,
915}
916
917#[doc(hidden)]
918pub struct RenameState {
919 pub range: Range<Anchor>,
920 pub old_name: Arc<str>,
921 pub editor: View<Editor>,
922 block_id: CustomBlockId,
923}
924
925struct InvalidationStack<T>(Vec<T>);
926
927struct RegisteredInlineCompletionProvider {
928 provider: Arc<dyn InlineCompletionProviderHandle>,
929 _subscription: Subscription,
930}
931
932#[derive(Debug)]
933struct ActiveDiagnosticGroup {
934 primary_range: Range<Anchor>,
935 primary_message: String,
936 group_id: usize,
937 blocks: HashMap<CustomBlockId, Diagnostic>,
938 is_valid: bool,
939}
940
941#[derive(Serialize, Deserialize, Clone, Debug)]
942pub struct ClipboardSelection {
943 pub len: usize,
944 pub is_entire_line: bool,
945 pub first_line_indent: u32,
946}
947
948#[derive(Debug)]
949pub(crate) struct NavigationData {
950 cursor_anchor: Anchor,
951 cursor_position: Point,
952 scroll_anchor: ScrollAnchor,
953 scroll_top_row: u32,
954}
955
956#[derive(Debug, Clone, Copy, PartialEq, Eq)]
957pub enum GotoDefinitionKind {
958 Symbol,
959 Declaration,
960 Type,
961 Implementation,
962}
963
964#[derive(Debug, Clone)]
965enum InlayHintRefreshReason {
966 Toggle(bool),
967 SettingsChange(InlayHintSettings),
968 NewLinesShown,
969 BufferEdited(HashSet<Arc<Language>>),
970 RefreshRequested,
971 ExcerptsRemoved(Vec<ExcerptId>),
972}
973
974impl InlayHintRefreshReason {
975 fn description(&self) -> &'static str {
976 match self {
977 Self::Toggle(_) => "toggle",
978 Self::SettingsChange(_) => "settings change",
979 Self::NewLinesShown => "new lines shown",
980 Self::BufferEdited(_) => "buffer edited",
981 Self::RefreshRequested => "refresh requested",
982 Self::ExcerptsRemoved(_) => "excerpts removed",
983 }
984 }
985}
986
987pub(crate) struct FocusedBlock {
988 id: BlockId,
989 focus_handle: WeakFocusHandle,
990}
991
992#[derive(Clone)]
993struct JumpData {
994 excerpt_id: ExcerptId,
995 position: Point,
996 anchor: text::Anchor,
997 path: Option<project::ProjectPath>,
998 line_offset_from_top: u32,
999}
1000
1001impl Editor {
1002 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1003 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1004 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1005 Self::new(
1006 EditorMode::SingleLine { auto_width: false },
1007 buffer,
1008 None,
1009 false,
1010 cx,
1011 )
1012 }
1013
1014 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1015 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1016 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1017 Self::new(EditorMode::Full, buffer, None, false, cx)
1018 }
1019
1020 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1021 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1022 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1023 Self::new(
1024 EditorMode::SingleLine { auto_width: true },
1025 buffer,
1026 None,
1027 false,
1028 cx,
1029 )
1030 }
1031
1032 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1033 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1034 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1035 Self::new(
1036 EditorMode::AutoHeight { max_lines },
1037 buffer,
1038 None,
1039 false,
1040 cx,
1041 )
1042 }
1043
1044 pub fn for_buffer(
1045 buffer: Model<Buffer>,
1046 project: Option<Model<Project>>,
1047 cx: &mut ViewContext<Self>,
1048 ) -> Self {
1049 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1050 Self::new(EditorMode::Full, buffer, project, false, cx)
1051 }
1052
1053 pub fn for_multibuffer(
1054 buffer: Model<MultiBuffer>,
1055 project: Option<Model<Project>>,
1056 show_excerpt_controls: bool,
1057 cx: &mut ViewContext<Self>,
1058 ) -> Self {
1059 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1060 }
1061
1062 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1063 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1064 let mut clone = Self::new(
1065 self.mode,
1066 self.buffer.clone(),
1067 self.project.clone(),
1068 show_excerpt_controls,
1069 cx,
1070 );
1071 self.display_map.update(cx, |display_map, cx| {
1072 let snapshot = display_map.snapshot(cx);
1073 clone.display_map.update(cx, |display_map, cx| {
1074 display_map.set_state(&snapshot, cx);
1075 });
1076 });
1077 clone.selections.clone_state(&self.selections);
1078 clone.scroll_manager.clone_state(&self.scroll_manager);
1079 clone.searchable = self.searchable;
1080 clone
1081 }
1082
1083 pub fn new(
1084 mode: EditorMode,
1085 buffer: Model<MultiBuffer>,
1086 project: Option<Model<Project>>,
1087 show_excerpt_controls: bool,
1088 cx: &mut ViewContext<Self>,
1089 ) -> Self {
1090 let style = cx.text_style();
1091 let font_size = style.font_size.to_pixels(cx.rem_size());
1092 let editor = cx.view().downgrade();
1093 let fold_placeholder = FoldPlaceholder {
1094 constrain_width: true,
1095 render: Arc::new(move |fold_id, fold_range, cx| {
1096 let editor = editor.clone();
1097 div()
1098 .id(fold_id)
1099 .bg(cx.theme().colors().ghost_element_background)
1100 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1101 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1102 .rounded_sm()
1103 .size_full()
1104 .cursor_pointer()
1105 .child("⋯")
1106 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1107 .on_click(move |_, cx| {
1108 editor
1109 .update(cx, |editor, cx| {
1110 editor.unfold_ranges(
1111 &[fold_range.start..fold_range.end],
1112 true,
1113 false,
1114 cx,
1115 );
1116 cx.stop_propagation();
1117 })
1118 .ok();
1119 })
1120 .into_any()
1121 }),
1122 merge_adjacent: true,
1123 ..Default::default()
1124 };
1125 let display_map = cx.new_model(|cx| {
1126 DisplayMap::new(
1127 buffer.clone(),
1128 style.font(),
1129 font_size,
1130 None,
1131 show_excerpt_controls,
1132 FILE_HEADER_HEIGHT,
1133 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1134 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1135 fold_placeholder,
1136 cx,
1137 )
1138 });
1139
1140 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1141
1142 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1143
1144 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1145 .then(|| language_settings::SoftWrap::None);
1146
1147 let mut project_subscriptions = Vec::new();
1148 if mode == EditorMode::Full {
1149 if let Some(project) = project.as_ref() {
1150 if buffer.read(cx).is_singleton() {
1151 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1152 cx.emit(EditorEvent::TitleChanged);
1153 }));
1154 }
1155 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1156 if let project::Event::RefreshInlayHints = event {
1157 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1158 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1159 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1160 let focus_handle = editor.focus_handle(cx);
1161 if focus_handle.is_focused(cx) {
1162 let snapshot = buffer.read(cx).snapshot();
1163 for (range, snippet) in snippet_edits {
1164 let editor_range =
1165 language::range_from_lsp(*range).to_offset(&snapshot);
1166 editor
1167 .insert_snippet(&[editor_range], snippet.clone(), cx)
1168 .ok();
1169 }
1170 }
1171 }
1172 }
1173 }));
1174 if let Some(task_inventory) = project
1175 .read(cx)
1176 .task_store()
1177 .read(cx)
1178 .task_inventory()
1179 .cloned()
1180 {
1181 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1182 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1183 }));
1184 }
1185 }
1186 }
1187
1188 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1189
1190 let inlay_hint_settings =
1191 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1192 let focus_handle = cx.focus_handle();
1193 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1194 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1195 .detach();
1196 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1197 .detach();
1198 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1199
1200 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1201 Some(false)
1202 } else {
1203 None
1204 };
1205
1206 let mut code_action_providers = Vec::new();
1207 if let Some(project) = project.clone() {
1208 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1209 code_action_providers.push(Rc::new(project) as Rc<_>);
1210 }
1211
1212 let mut this = Self {
1213 focus_handle,
1214 show_cursor_when_unfocused: false,
1215 last_focused_descendant: None,
1216 buffer: buffer.clone(),
1217 display_map: display_map.clone(),
1218 selections,
1219 scroll_manager: ScrollManager::new(cx),
1220 columnar_selection_tail: None,
1221 add_selections_state: None,
1222 select_next_state: None,
1223 select_prev_state: None,
1224 selection_history: Default::default(),
1225 autoclose_regions: Default::default(),
1226 snippet_stack: Default::default(),
1227 select_larger_syntax_node_stack: Vec::new(),
1228 ime_transaction: Default::default(),
1229 active_diagnostics: None,
1230 soft_wrap_mode_override,
1231 completion_provider: project.clone().map(|project| Box::new(project) as _),
1232 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1233 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1234 project,
1235 blink_manager: blink_manager.clone(),
1236 show_local_selections: true,
1237 mode,
1238 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1239 show_gutter: mode == EditorMode::Full,
1240 show_line_numbers: None,
1241 use_relative_line_numbers: None,
1242 show_git_diff_gutter: None,
1243 show_code_actions: None,
1244 show_runnables: None,
1245 show_wrap_guides: None,
1246 show_indent_guides,
1247 placeholder_text: None,
1248 highlight_order: 0,
1249 highlighted_rows: HashMap::default(),
1250 background_highlights: Default::default(),
1251 gutter_highlights: TreeMap::default(),
1252 scrollbar_marker_state: ScrollbarMarkerState::default(),
1253 active_indent_guides_state: ActiveIndentGuidesState::default(),
1254 nav_history: None,
1255 context_menu: RefCell::new(None),
1256 mouse_context_menu: None,
1257 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1258 completion_tasks: Default::default(),
1259 signature_help_state: SignatureHelpState::default(),
1260 auto_signature_help: None,
1261 find_all_references_task_sources: Vec::new(),
1262 next_completion_id: 0,
1263 next_inlay_id: 0,
1264 code_action_providers,
1265 available_code_actions: Default::default(),
1266 code_actions_task: Default::default(),
1267 document_highlights_task: Default::default(),
1268 linked_editing_range_task: Default::default(),
1269 pending_rename: Default::default(),
1270 searchable: true,
1271 cursor_shape: EditorSettings::get_global(cx)
1272 .cursor_shape
1273 .unwrap_or_default(),
1274 current_line_highlight: None,
1275 autoindent_mode: Some(AutoindentMode::EachLine),
1276 collapse_matches: false,
1277 workspace: None,
1278 input_enabled: true,
1279 use_modal_editing: mode == EditorMode::Full,
1280 read_only: false,
1281 use_autoclose: true,
1282 use_auto_surround: true,
1283 auto_replace_emoji_shortcode: false,
1284 leader_peer_id: None,
1285 remote_id: None,
1286 hover_state: Default::default(),
1287 hovered_link_state: Default::default(),
1288 inline_completion_provider: None,
1289 active_inline_completion: None,
1290 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1291 diff_map: DiffMap::default(),
1292 gutter_hovered: false,
1293 pixel_position_of_newest_cursor: None,
1294 last_bounds: None,
1295 expect_bounds_change: None,
1296 gutter_dimensions: GutterDimensions::default(),
1297 style: None,
1298 show_cursor_names: false,
1299 hovered_cursors: Default::default(),
1300 next_editor_action_id: EditorActionId::default(),
1301 editor_actions: Rc::default(),
1302 show_inline_completions_override: None,
1303 enable_inline_completions: true,
1304 custom_context_menu: None,
1305 show_git_blame_gutter: false,
1306 show_git_blame_inline: false,
1307 show_selection_menu: None,
1308 show_git_blame_inline_delay_task: None,
1309 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1310 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1311 .session
1312 .restore_unsaved_buffers,
1313 blame: None,
1314 blame_subscription: None,
1315 tasks: Default::default(),
1316 _subscriptions: vec![
1317 cx.observe(&buffer, Self::on_buffer_changed),
1318 cx.subscribe(&buffer, Self::on_buffer_event),
1319 cx.observe(&display_map, Self::on_display_map_changed),
1320 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1321 cx.observe_global::<SettingsStore>(Self::settings_changed),
1322 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1323 cx.observe_window_activation(|editor, cx| {
1324 let active = cx.is_window_active();
1325 editor.blink_manager.update(cx, |blink_manager, cx| {
1326 if active {
1327 blink_manager.enable(cx);
1328 } else {
1329 blink_manager.disable(cx);
1330 }
1331 });
1332 }),
1333 ],
1334 tasks_update_task: None,
1335 linked_edit_ranges: Default::default(),
1336 previous_search_ranges: None,
1337 breadcrumb_header: None,
1338 focused_block: None,
1339 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1340 addons: HashMap::default(),
1341 registered_buffers: HashMap::default(),
1342 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1343 toggle_fold_multiple_buffers: Task::ready(()),
1344 text_style_refinement: None,
1345 };
1346 this.tasks_update_task = Some(this.refresh_runnables(cx));
1347 this._subscriptions.extend(project_subscriptions);
1348
1349 this.end_selection(cx);
1350 this.scroll_manager.show_scrollbar(cx);
1351
1352 if mode == EditorMode::Full {
1353 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1354 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1355
1356 if this.git_blame_inline_enabled {
1357 this.git_blame_inline_enabled = true;
1358 this.start_git_blame_inline(false, cx);
1359 }
1360
1361 if let Some(buffer) = buffer.read(cx).as_singleton() {
1362 if let Some(project) = this.project.as_ref() {
1363 let lsp_store = project.read(cx).lsp_store();
1364 let handle = lsp_store.update(cx, |lsp_store, cx| {
1365 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1366 });
1367 this.registered_buffers
1368 .insert(buffer.read(cx).remote_id(), handle);
1369 }
1370 }
1371 }
1372
1373 this.report_editor_event("Editor Opened", None, cx);
1374 this
1375 }
1376
1377 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1378 self.mouse_context_menu
1379 .as_ref()
1380 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1381 }
1382
1383 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1384 let mut key_context = KeyContext::new_with_defaults();
1385 key_context.add("Editor");
1386 let mode = match self.mode {
1387 EditorMode::SingleLine { .. } => "single_line",
1388 EditorMode::AutoHeight { .. } => "auto_height",
1389 EditorMode::Full => "full",
1390 };
1391
1392 if EditorSettings::jupyter_enabled(cx) {
1393 key_context.add("jupyter");
1394 }
1395
1396 key_context.set("mode", mode);
1397 if self.pending_rename.is_some() {
1398 key_context.add("renaming");
1399 }
1400 match self.context_menu.borrow().as_ref() {
1401 Some(CodeContextMenu::Completions(_)) => {
1402 key_context.add("menu");
1403 key_context.add("showing_completions")
1404 }
1405 Some(CodeContextMenu::CodeActions(_)) => {
1406 key_context.add("menu");
1407 key_context.add("showing_code_actions")
1408 }
1409 None => {}
1410 }
1411
1412 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1413 if !self.focus_handle(cx).contains_focused(cx)
1414 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1415 {
1416 for addon in self.addons.values() {
1417 addon.extend_key_context(&mut key_context, cx)
1418 }
1419 }
1420
1421 if let Some(extension) = self
1422 .buffer
1423 .read(cx)
1424 .as_singleton()
1425 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1426 {
1427 key_context.set("extension", extension.to_string());
1428 }
1429
1430 if self.has_active_inline_completion() {
1431 key_context.add("copilot_suggestion");
1432 key_context.add("inline_completion");
1433 }
1434
1435 if !self
1436 .selections
1437 .disjoint
1438 .iter()
1439 .all(|selection| selection.start == selection.end)
1440 {
1441 key_context.add("selection");
1442 }
1443
1444 key_context
1445 }
1446
1447 pub fn new_file(
1448 workspace: &mut Workspace,
1449 _: &workspace::NewFile,
1450 cx: &mut ViewContext<Workspace>,
1451 ) {
1452 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1453 "Failed to create buffer",
1454 cx,
1455 |e, _| match e.error_code() {
1456 ErrorCode::RemoteUpgradeRequired => Some(format!(
1457 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1458 e.error_tag("required").unwrap_or("the latest version")
1459 )),
1460 _ => None,
1461 },
1462 );
1463 }
1464
1465 pub fn new_in_workspace(
1466 workspace: &mut Workspace,
1467 cx: &mut ViewContext<Workspace>,
1468 ) -> Task<Result<View<Editor>>> {
1469 let project = workspace.project().clone();
1470 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1471
1472 cx.spawn(|workspace, mut cx| async move {
1473 let buffer = create.await?;
1474 workspace.update(&mut cx, |workspace, cx| {
1475 let editor =
1476 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1477 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1478 editor
1479 })
1480 })
1481 }
1482
1483 fn new_file_vertical(
1484 workspace: &mut Workspace,
1485 _: &workspace::NewFileSplitVertical,
1486 cx: &mut ViewContext<Workspace>,
1487 ) {
1488 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1489 }
1490
1491 fn new_file_horizontal(
1492 workspace: &mut Workspace,
1493 _: &workspace::NewFileSplitHorizontal,
1494 cx: &mut ViewContext<Workspace>,
1495 ) {
1496 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1497 }
1498
1499 fn new_file_in_direction(
1500 workspace: &mut Workspace,
1501 direction: SplitDirection,
1502 cx: &mut ViewContext<Workspace>,
1503 ) {
1504 let project = workspace.project().clone();
1505 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1506
1507 cx.spawn(|workspace, mut cx| async move {
1508 let buffer = create.await?;
1509 workspace.update(&mut cx, move |workspace, cx| {
1510 workspace.split_item(
1511 direction,
1512 Box::new(
1513 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1514 ),
1515 cx,
1516 )
1517 })?;
1518 anyhow::Ok(())
1519 })
1520 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1521 ErrorCode::RemoteUpgradeRequired => Some(format!(
1522 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1523 e.error_tag("required").unwrap_or("the latest version")
1524 )),
1525 _ => None,
1526 });
1527 }
1528
1529 pub fn leader_peer_id(&self) -> Option<PeerId> {
1530 self.leader_peer_id
1531 }
1532
1533 pub fn buffer(&self) -> &Model<MultiBuffer> {
1534 &self.buffer
1535 }
1536
1537 pub fn workspace(&self) -> Option<View<Workspace>> {
1538 self.workspace.as_ref()?.0.upgrade()
1539 }
1540
1541 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1542 self.buffer().read(cx).title(cx)
1543 }
1544
1545 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1546 let git_blame_gutter_max_author_length = self
1547 .render_git_blame_gutter(cx)
1548 .then(|| {
1549 if let Some(blame) = self.blame.as_ref() {
1550 let max_author_length =
1551 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1552 Some(max_author_length)
1553 } else {
1554 None
1555 }
1556 })
1557 .flatten();
1558
1559 EditorSnapshot {
1560 mode: self.mode,
1561 show_gutter: self.show_gutter,
1562 show_line_numbers: self.show_line_numbers,
1563 show_git_diff_gutter: self.show_git_diff_gutter,
1564 show_code_actions: self.show_code_actions,
1565 show_runnables: self.show_runnables,
1566 git_blame_gutter_max_author_length,
1567 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1568 scroll_anchor: self.scroll_manager.anchor(),
1569 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1570 placeholder_text: self.placeholder_text.clone(),
1571 diff_map: self.diff_map.snapshot(),
1572 is_focused: self.focus_handle.is_focused(cx),
1573 current_line_highlight: self
1574 .current_line_highlight
1575 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1576 gutter_hovered: self.gutter_hovered,
1577 }
1578 }
1579
1580 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1581 self.buffer.read(cx).language_at(point, cx)
1582 }
1583
1584 pub fn file_at<T: ToOffset>(
1585 &self,
1586 point: T,
1587 cx: &AppContext,
1588 ) -> Option<Arc<dyn language::File>> {
1589 self.buffer.read(cx).read(cx).file_at(point).cloned()
1590 }
1591
1592 pub fn active_excerpt(
1593 &self,
1594 cx: &AppContext,
1595 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1596 self.buffer
1597 .read(cx)
1598 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1599 }
1600
1601 pub fn mode(&self) -> EditorMode {
1602 self.mode
1603 }
1604
1605 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1606 self.collaboration_hub.as_deref()
1607 }
1608
1609 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1610 self.collaboration_hub = Some(hub);
1611 }
1612
1613 pub fn set_custom_context_menu(
1614 &mut self,
1615 f: impl 'static
1616 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1617 ) {
1618 self.custom_context_menu = Some(Box::new(f))
1619 }
1620
1621 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1622 self.completion_provider = provider;
1623 }
1624
1625 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1626 self.semantics_provider.clone()
1627 }
1628
1629 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1630 self.semantics_provider = provider;
1631 }
1632
1633 pub fn set_inline_completion_provider<T>(
1634 &mut self,
1635 provider: Option<Model<T>>,
1636 cx: &mut ViewContext<Self>,
1637 ) where
1638 T: InlineCompletionProvider,
1639 {
1640 self.inline_completion_provider =
1641 provider.map(|provider| RegisteredInlineCompletionProvider {
1642 _subscription: cx.observe(&provider, |this, _, cx| {
1643 if this.focus_handle.is_focused(cx) {
1644 this.update_visible_inline_completion(cx);
1645 }
1646 }),
1647 provider: Arc::new(provider),
1648 });
1649 self.refresh_inline_completion(false, false, cx);
1650 }
1651
1652 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1653 self.placeholder_text.as_deref()
1654 }
1655
1656 pub fn set_placeholder_text(
1657 &mut self,
1658 placeholder_text: impl Into<Arc<str>>,
1659 cx: &mut ViewContext<Self>,
1660 ) {
1661 let placeholder_text = Some(placeholder_text.into());
1662 if self.placeholder_text != placeholder_text {
1663 self.placeholder_text = placeholder_text;
1664 cx.notify();
1665 }
1666 }
1667
1668 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1669 self.cursor_shape = cursor_shape;
1670
1671 // Disrupt blink for immediate user feedback that the cursor shape has changed
1672 self.blink_manager.update(cx, BlinkManager::show_cursor);
1673
1674 cx.notify();
1675 }
1676
1677 pub fn set_current_line_highlight(
1678 &mut self,
1679 current_line_highlight: Option<CurrentLineHighlight>,
1680 ) {
1681 self.current_line_highlight = current_line_highlight;
1682 }
1683
1684 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1685 self.collapse_matches = collapse_matches;
1686 }
1687
1688 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1689 let buffers = self.buffer.read(cx).all_buffers();
1690 let Some(lsp_store) = self.lsp_store(cx) else {
1691 return;
1692 };
1693 lsp_store.update(cx, |lsp_store, cx| {
1694 for buffer in buffers {
1695 self.registered_buffers
1696 .entry(buffer.read(cx).remote_id())
1697 .or_insert_with(|| {
1698 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1699 });
1700 }
1701 })
1702 }
1703
1704 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1705 if self.collapse_matches {
1706 return range.start..range.start;
1707 }
1708 range.clone()
1709 }
1710
1711 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1712 if self.display_map.read(cx).clip_at_line_ends != clip {
1713 self.display_map
1714 .update(cx, |map, _| map.clip_at_line_ends = clip);
1715 }
1716 }
1717
1718 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1719 self.input_enabled = input_enabled;
1720 }
1721
1722 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1723 self.enable_inline_completions = enabled;
1724 }
1725
1726 pub fn set_autoindent(&mut self, autoindent: bool) {
1727 if autoindent {
1728 self.autoindent_mode = Some(AutoindentMode::EachLine);
1729 } else {
1730 self.autoindent_mode = None;
1731 }
1732 }
1733
1734 pub fn read_only(&self, cx: &AppContext) -> bool {
1735 self.read_only || self.buffer.read(cx).read_only()
1736 }
1737
1738 pub fn set_read_only(&mut self, read_only: bool) {
1739 self.read_only = read_only;
1740 }
1741
1742 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1743 self.use_autoclose = autoclose;
1744 }
1745
1746 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1747 self.use_auto_surround = auto_surround;
1748 }
1749
1750 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1751 self.auto_replace_emoji_shortcode = auto_replace;
1752 }
1753
1754 pub fn toggle_inline_completions(
1755 &mut self,
1756 _: &ToggleInlineCompletions,
1757 cx: &mut ViewContext<Self>,
1758 ) {
1759 if self.show_inline_completions_override.is_some() {
1760 self.set_show_inline_completions(None, cx);
1761 } else {
1762 let cursor = self.selections.newest_anchor().head();
1763 if let Some((buffer, cursor_buffer_position)) =
1764 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1765 {
1766 let show_inline_completions =
1767 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1768 self.set_show_inline_completions(Some(show_inline_completions), cx);
1769 }
1770 }
1771 }
1772
1773 pub fn set_show_inline_completions(
1774 &mut self,
1775 show_inline_completions: Option<bool>,
1776 cx: &mut ViewContext<Self>,
1777 ) {
1778 self.show_inline_completions_override = show_inline_completions;
1779 self.refresh_inline_completion(false, true, cx);
1780 }
1781
1782 fn should_show_inline_completions(
1783 &self,
1784 buffer: &Model<Buffer>,
1785 buffer_position: language::Anchor,
1786 cx: &AppContext,
1787 ) -> bool {
1788 if !self.snippet_stack.is_empty() {
1789 return false;
1790 }
1791
1792 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1793 return false;
1794 }
1795
1796 if let Some(provider) = self.inline_completion_provider() {
1797 if let Some(show_inline_completions) = self.show_inline_completions_override {
1798 show_inline_completions
1799 } else {
1800 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1801 }
1802 } else {
1803 false
1804 }
1805 }
1806
1807 fn inline_completions_disabled_in_scope(
1808 &self,
1809 buffer: &Model<Buffer>,
1810 buffer_position: language::Anchor,
1811 cx: &AppContext,
1812 ) -> bool {
1813 let snapshot = buffer.read(cx).snapshot();
1814 let settings = snapshot.settings_at(buffer_position, cx);
1815
1816 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1817 return false;
1818 };
1819
1820 scope.override_name().map_or(false, |scope_name| {
1821 settings
1822 .inline_completions_disabled_in
1823 .iter()
1824 .any(|s| s == scope_name)
1825 })
1826 }
1827
1828 pub fn set_use_modal_editing(&mut self, to: bool) {
1829 self.use_modal_editing = to;
1830 }
1831
1832 pub fn use_modal_editing(&self) -> bool {
1833 self.use_modal_editing
1834 }
1835
1836 fn selections_did_change(
1837 &mut self,
1838 local: bool,
1839 old_cursor_position: &Anchor,
1840 show_completions: bool,
1841 cx: &mut ViewContext<Self>,
1842 ) {
1843 cx.invalidate_character_coordinates();
1844
1845 // Copy selections to primary selection buffer
1846 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1847 if local {
1848 let selections = self.selections.all::<usize>(cx);
1849 let buffer_handle = self.buffer.read(cx).read(cx);
1850
1851 let mut text = String::new();
1852 for (index, selection) in selections.iter().enumerate() {
1853 let text_for_selection = buffer_handle
1854 .text_for_range(selection.start..selection.end)
1855 .collect::<String>();
1856
1857 text.push_str(&text_for_selection);
1858 if index != selections.len() - 1 {
1859 text.push('\n');
1860 }
1861 }
1862
1863 if !text.is_empty() {
1864 cx.write_to_primary(ClipboardItem::new_string(text));
1865 }
1866 }
1867
1868 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1869 self.buffer.update(cx, |buffer, cx| {
1870 buffer.set_active_selections(
1871 &self.selections.disjoint_anchors(),
1872 self.selections.line_mode,
1873 self.cursor_shape,
1874 cx,
1875 )
1876 });
1877 }
1878 let display_map = self
1879 .display_map
1880 .update(cx, |display_map, cx| display_map.snapshot(cx));
1881 let buffer = &display_map.buffer_snapshot;
1882 self.add_selections_state = None;
1883 self.select_next_state = None;
1884 self.select_prev_state = None;
1885 self.select_larger_syntax_node_stack.clear();
1886 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1887 self.snippet_stack
1888 .invalidate(&self.selections.disjoint_anchors(), buffer);
1889 self.take_rename(false, cx);
1890
1891 let new_cursor_position = self.selections.newest_anchor().head();
1892
1893 self.push_to_nav_history(
1894 *old_cursor_position,
1895 Some(new_cursor_position.to_point(buffer)),
1896 cx,
1897 );
1898
1899 if local {
1900 let new_cursor_position = self.selections.newest_anchor().head();
1901 let mut context_menu = self.context_menu.borrow_mut();
1902 let completion_menu = match context_menu.as_ref() {
1903 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1904 _ => {
1905 *context_menu = None;
1906 None
1907 }
1908 };
1909
1910 if let Some(completion_menu) = completion_menu {
1911 let cursor_position = new_cursor_position.to_offset(buffer);
1912 let (word_range, kind) =
1913 buffer.surrounding_word(completion_menu.initial_position, true);
1914 if kind == Some(CharKind::Word)
1915 && word_range.to_inclusive().contains(&cursor_position)
1916 {
1917 let mut completion_menu = completion_menu.clone();
1918 drop(context_menu);
1919
1920 let query = Self::completion_query(buffer, cursor_position);
1921 cx.spawn(move |this, mut cx| async move {
1922 completion_menu
1923 .filter(query.as_deref(), cx.background_executor().clone())
1924 .await;
1925
1926 this.update(&mut cx, |this, cx| {
1927 let mut context_menu = this.context_menu.borrow_mut();
1928 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1929 else {
1930 return;
1931 };
1932
1933 if menu.id > completion_menu.id {
1934 return;
1935 }
1936
1937 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1938 drop(context_menu);
1939 cx.notify();
1940 })
1941 })
1942 .detach();
1943
1944 if show_completions {
1945 self.show_completions(&ShowCompletions { trigger: None }, cx);
1946 }
1947 } else {
1948 drop(context_menu);
1949 self.hide_context_menu(cx);
1950 }
1951 } else {
1952 drop(context_menu);
1953 }
1954
1955 hide_hover(self, cx);
1956
1957 if old_cursor_position.to_display_point(&display_map).row()
1958 != new_cursor_position.to_display_point(&display_map).row()
1959 {
1960 self.available_code_actions.take();
1961 }
1962 self.refresh_code_actions(cx);
1963 self.refresh_document_highlights(cx);
1964 refresh_matching_bracket_highlights(self, cx);
1965 self.update_visible_inline_completion(cx);
1966 linked_editing_ranges::refresh_linked_ranges(self, cx);
1967 if self.git_blame_inline_enabled {
1968 self.start_inline_blame_timer(cx);
1969 }
1970 }
1971
1972 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1973 cx.emit(EditorEvent::SelectionsChanged { local });
1974
1975 if self.selections.disjoint_anchors().len() == 1 {
1976 cx.emit(SearchEvent::ActiveMatchChanged)
1977 }
1978 cx.notify();
1979 }
1980
1981 pub fn change_selections<R>(
1982 &mut self,
1983 autoscroll: Option<Autoscroll>,
1984 cx: &mut ViewContext<Self>,
1985 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1986 ) -> R {
1987 self.change_selections_inner(autoscroll, true, cx, change)
1988 }
1989
1990 pub fn change_selections_inner<R>(
1991 &mut self,
1992 autoscroll: Option<Autoscroll>,
1993 request_completions: bool,
1994 cx: &mut ViewContext<Self>,
1995 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1996 ) -> R {
1997 let old_cursor_position = self.selections.newest_anchor().head();
1998 self.push_to_selection_history();
1999
2000 let (changed, result) = self.selections.change_with(cx, change);
2001
2002 if changed {
2003 if let Some(autoscroll) = autoscroll {
2004 self.request_autoscroll(autoscroll, cx);
2005 }
2006 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2007
2008 if self.should_open_signature_help_automatically(
2009 &old_cursor_position,
2010 self.signature_help_state.backspace_pressed(),
2011 cx,
2012 ) {
2013 self.show_signature_help(&ShowSignatureHelp, cx);
2014 }
2015 self.signature_help_state.set_backspace_pressed(false);
2016 }
2017
2018 result
2019 }
2020
2021 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2022 where
2023 I: IntoIterator<Item = (Range<S>, T)>,
2024 S: ToOffset,
2025 T: Into<Arc<str>>,
2026 {
2027 if self.read_only(cx) {
2028 return;
2029 }
2030
2031 self.buffer
2032 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2033 }
2034
2035 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2036 where
2037 I: IntoIterator<Item = (Range<S>, T)>,
2038 S: ToOffset,
2039 T: Into<Arc<str>>,
2040 {
2041 if self.read_only(cx) {
2042 return;
2043 }
2044
2045 self.buffer.update(cx, |buffer, cx| {
2046 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2047 });
2048 }
2049
2050 pub fn edit_with_block_indent<I, S, T>(
2051 &mut self,
2052 edits: I,
2053 original_indent_columns: Vec<u32>,
2054 cx: &mut ViewContext<Self>,
2055 ) where
2056 I: IntoIterator<Item = (Range<S>, T)>,
2057 S: ToOffset,
2058 T: Into<Arc<str>>,
2059 {
2060 if self.read_only(cx) {
2061 return;
2062 }
2063
2064 self.buffer.update(cx, |buffer, cx| {
2065 buffer.edit(
2066 edits,
2067 Some(AutoindentMode::Block {
2068 original_indent_columns,
2069 }),
2070 cx,
2071 )
2072 });
2073 }
2074
2075 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2076 self.hide_context_menu(cx);
2077
2078 match phase {
2079 SelectPhase::Begin {
2080 position,
2081 add,
2082 click_count,
2083 } => self.begin_selection(position, add, click_count, cx),
2084 SelectPhase::BeginColumnar {
2085 position,
2086 goal_column,
2087 reset,
2088 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2089 SelectPhase::Extend {
2090 position,
2091 click_count,
2092 } => self.extend_selection(position, click_count, cx),
2093 SelectPhase::Update {
2094 position,
2095 goal_column,
2096 scroll_delta,
2097 } => self.update_selection(position, goal_column, scroll_delta, cx),
2098 SelectPhase::End => self.end_selection(cx),
2099 }
2100 }
2101
2102 fn extend_selection(
2103 &mut self,
2104 position: DisplayPoint,
2105 click_count: usize,
2106 cx: &mut ViewContext<Self>,
2107 ) {
2108 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2109 let tail = self.selections.newest::<usize>(cx).tail();
2110 self.begin_selection(position, false, click_count, cx);
2111
2112 let position = position.to_offset(&display_map, Bias::Left);
2113 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2114
2115 let mut pending_selection = self
2116 .selections
2117 .pending_anchor()
2118 .expect("extend_selection not called with pending selection");
2119 if position >= tail {
2120 pending_selection.start = tail_anchor;
2121 } else {
2122 pending_selection.end = tail_anchor;
2123 pending_selection.reversed = true;
2124 }
2125
2126 let mut pending_mode = self.selections.pending_mode().unwrap();
2127 match &mut pending_mode {
2128 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2129 _ => {}
2130 }
2131
2132 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2133 s.set_pending(pending_selection, pending_mode)
2134 });
2135 }
2136
2137 fn begin_selection(
2138 &mut self,
2139 position: DisplayPoint,
2140 add: bool,
2141 click_count: usize,
2142 cx: &mut ViewContext<Self>,
2143 ) {
2144 if !self.focus_handle.is_focused(cx) {
2145 self.last_focused_descendant = None;
2146 cx.focus(&self.focus_handle);
2147 }
2148
2149 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2150 let buffer = &display_map.buffer_snapshot;
2151 let newest_selection = self.selections.newest_anchor().clone();
2152 let position = display_map.clip_point(position, Bias::Left);
2153
2154 let start;
2155 let end;
2156 let mode;
2157 let mut auto_scroll;
2158 match click_count {
2159 1 => {
2160 start = buffer.anchor_before(position.to_point(&display_map));
2161 end = start;
2162 mode = SelectMode::Character;
2163 auto_scroll = true;
2164 }
2165 2 => {
2166 let range = movement::surrounding_word(&display_map, position);
2167 start = buffer.anchor_before(range.start.to_point(&display_map));
2168 end = buffer.anchor_before(range.end.to_point(&display_map));
2169 mode = SelectMode::Word(start..end);
2170 auto_scroll = true;
2171 }
2172 3 => {
2173 let position = display_map
2174 .clip_point(position, Bias::Left)
2175 .to_point(&display_map);
2176 let line_start = display_map.prev_line_boundary(position).0;
2177 let next_line_start = buffer.clip_point(
2178 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2179 Bias::Left,
2180 );
2181 start = buffer.anchor_before(line_start);
2182 end = buffer.anchor_before(next_line_start);
2183 mode = SelectMode::Line(start..end);
2184 auto_scroll = true;
2185 }
2186 _ => {
2187 start = buffer.anchor_before(0);
2188 end = buffer.anchor_before(buffer.len());
2189 mode = SelectMode::All;
2190 auto_scroll = false;
2191 }
2192 }
2193 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2194
2195 let point_to_delete: Option<usize> = {
2196 let selected_points: Vec<Selection<Point>> =
2197 self.selections.disjoint_in_range(start..end, cx);
2198
2199 if !add || click_count > 1 {
2200 None
2201 } else if !selected_points.is_empty() {
2202 Some(selected_points[0].id)
2203 } else {
2204 let clicked_point_already_selected =
2205 self.selections.disjoint.iter().find(|selection| {
2206 selection.start.to_point(buffer) == start.to_point(buffer)
2207 || selection.end.to_point(buffer) == end.to_point(buffer)
2208 });
2209
2210 clicked_point_already_selected.map(|selection| selection.id)
2211 }
2212 };
2213
2214 let selections_count = self.selections.count();
2215
2216 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2217 if let Some(point_to_delete) = point_to_delete {
2218 s.delete(point_to_delete);
2219
2220 if selections_count == 1 {
2221 s.set_pending_anchor_range(start..end, mode);
2222 }
2223 } else {
2224 if !add {
2225 s.clear_disjoint();
2226 } else if click_count > 1 {
2227 s.delete(newest_selection.id)
2228 }
2229
2230 s.set_pending_anchor_range(start..end, mode);
2231 }
2232 });
2233 }
2234
2235 fn begin_columnar_selection(
2236 &mut self,
2237 position: DisplayPoint,
2238 goal_column: u32,
2239 reset: bool,
2240 cx: &mut ViewContext<Self>,
2241 ) {
2242 if !self.focus_handle.is_focused(cx) {
2243 self.last_focused_descendant = None;
2244 cx.focus(&self.focus_handle);
2245 }
2246
2247 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2248
2249 if reset {
2250 let pointer_position = display_map
2251 .buffer_snapshot
2252 .anchor_before(position.to_point(&display_map));
2253
2254 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2255 s.clear_disjoint();
2256 s.set_pending_anchor_range(
2257 pointer_position..pointer_position,
2258 SelectMode::Character,
2259 );
2260 });
2261 }
2262
2263 let tail = self.selections.newest::<Point>(cx).tail();
2264 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2265
2266 if !reset {
2267 self.select_columns(
2268 tail.to_display_point(&display_map),
2269 position,
2270 goal_column,
2271 &display_map,
2272 cx,
2273 );
2274 }
2275 }
2276
2277 fn update_selection(
2278 &mut self,
2279 position: DisplayPoint,
2280 goal_column: u32,
2281 scroll_delta: gpui::Point<f32>,
2282 cx: &mut ViewContext<Self>,
2283 ) {
2284 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2285
2286 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2287 let tail = tail.to_display_point(&display_map);
2288 self.select_columns(tail, position, goal_column, &display_map, cx);
2289 } else if let Some(mut pending) = self.selections.pending_anchor() {
2290 let buffer = self.buffer.read(cx).snapshot(cx);
2291 let head;
2292 let tail;
2293 let mode = self.selections.pending_mode().unwrap();
2294 match &mode {
2295 SelectMode::Character => {
2296 head = position.to_point(&display_map);
2297 tail = pending.tail().to_point(&buffer);
2298 }
2299 SelectMode::Word(original_range) => {
2300 let original_display_range = original_range.start.to_display_point(&display_map)
2301 ..original_range.end.to_display_point(&display_map);
2302 let original_buffer_range = original_display_range.start.to_point(&display_map)
2303 ..original_display_range.end.to_point(&display_map);
2304 if movement::is_inside_word(&display_map, position)
2305 || original_display_range.contains(&position)
2306 {
2307 let word_range = movement::surrounding_word(&display_map, position);
2308 if word_range.start < original_display_range.start {
2309 head = word_range.start.to_point(&display_map);
2310 } else {
2311 head = word_range.end.to_point(&display_map);
2312 }
2313 } else {
2314 head = position.to_point(&display_map);
2315 }
2316
2317 if head <= original_buffer_range.start {
2318 tail = original_buffer_range.end;
2319 } else {
2320 tail = original_buffer_range.start;
2321 }
2322 }
2323 SelectMode::Line(original_range) => {
2324 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2325
2326 let position = display_map
2327 .clip_point(position, Bias::Left)
2328 .to_point(&display_map);
2329 let line_start = display_map.prev_line_boundary(position).0;
2330 let next_line_start = buffer.clip_point(
2331 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2332 Bias::Left,
2333 );
2334
2335 if line_start < original_range.start {
2336 head = line_start
2337 } else {
2338 head = next_line_start
2339 }
2340
2341 if head <= original_range.start {
2342 tail = original_range.end;
2343 } else {
2344 tail = original_range.start;
2345 }
2346 }
2347 SelectMode::All => {
2348 return;
2349 }
2350 };
2351
2352 if head < tail {
2353 pending.start = buffer.anchor_before(head);
2354 pending.end = buffer.anchor_before(tail);
2355 pending.reversed = true;
2356 } else {
2357 pending.start = buffer.anchor_before(tail);
2358 pending.end = buffer.anchor_before(head);
2359 pending.reversed = false;
2360 }
2361
2362 self.change_selections(None, cx, |s| {
2363 s.set_pending(pending, mode);
2364 });
2365 } else {
2366 log::error!("update_selection dispatched with no pending selection");
2367 return;
2368 }
2369
2370 self.apply_scroll_delta(scroll_delta, cx);
2371 cx.notify();
2372 }
2373
2374 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2375 self.columnar_selection_tail.take();
2376 if self.selections.pending_anchor().is_some() {
2377 let selections = self.selections.all::<usize>(cx);
2378 self.change_selections(None, cx, |s| {
2379 s.select(selections);
2380 s.clear_pending();
2381 });
2382 }
2383 }
2384
2385 fn select_columns(
2386 &mut self,
2387 tail: DisplayPoint,
2388 head: DisplayPoint,
2389 goal_column: u32,
2390 display_map: &DisplaySnapshot,
2391 cx: &mut ViewContext<Self>,
2392 ) {
2393 let start_row = cmp::min(tail.row(), head.row());
2394 let end_row = cmp::max(tail.row(), head.row());
2395 let start_column = cmp::min(tail.column(), goal_column);
2396 let end_column = cmp::max(tail.column(), goal_column);
2397 let reversed = start_column < tail.column();
2398
2399 let selection_ranges = (start_row.0..=end_row.0)
2400 .map(DisplayRow)
2401 .filter_map(|row| {
2402 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2403 let start = display_map
2404 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2405 .to_point(display_map);
2406 let end = display_map
2407 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2408 .to_point(display_map);
2409 if reversed {
2410 Some(end..start)
2411 } else {
2412 Some(start..end)
2413 }
2414 } else {
2415 None
2416 }
2417 })
2418 .collect::<Vec<_>>();
2419
2420 self.change_selections(None, cx, |s| {
2421 s.select_ranges(selection_ranges);
2422 });
2423 cx.notify();
2424 }
2425
2426 pub fn has_pending_nonempty_selection(&self) -> bool {
2427 let pending_nonempty_selection = match self.selections.pending_anchor() {
2428 Some(Selection { start, end, .. }) => start != end,
2429 None => false,
2430 };
2431
2432 pending_nonempty_selection
2433 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2434 }
2435
2436 pub fn has_pending_selection(&self) -> bool {
2437 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2438 }
2439
2440 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2441 if self.clear_expanded_diff_hunks(cx) {
2442 cx.notify();
2443 return;
2444 }
2445 if self.dismiss_menus_and_popups(true, cx) {
2446 return;
2447 }
2448
2449 if self.mode == EditorMode::Full
2450 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2451 {
2452 return;
2453 }
2454
2455 cx.propagate();
2456 }
2457
2458 pub fn dismiss_menus_and_popups(
2459 &mut self,
2460 should_report_inline_completion_event: bool,
2461 cx: &mut ViewContext<Self>,
2462 ) -> bool {
2463 if self.take_rename(false, cx).is_some() {
2464 return true;
2465 }
2466
2467 if hide_hover(self, cx) {
2468 return true;
2469 }
2470
2471 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2472 return true;
2473 }
2474
2475 if self.hide_context_menu(cx).is_some() {
2476 if self.has_active_inline_completion() {
2477 self.update_visible_inline_completion(cx);
2478 }
2479 return true;
2480 }
2481
2482 if self.mouse_context_menu.take().is_some() {
2483 return true;
2484 }
2485
2486 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2487 return true;
2488 }
2489
2490 if self.snippet_stack.pop().is_some() {
2491 return true;
2492 }
2493
2494 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2495 self.dismiss_diagnostics(cx);
2496 return true;
2497 }
2498
2499 false
2500 }
2501
2502 fn linked_editing_ranges_for(
2503 &self,
2504 selection: Range<text::Anchor>,
2505 cx: &AppContext,
2506 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2507 if self.linked_edit_ranges.is_empty() {
2508 return None;
2509 }
2510 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2511 selection.end.buffer_id.and_then(|end_buffer_id| {
2512 if selection.start.buffer_id != Some(end_buffer_id) {
2513 return None;
2514 }
2515 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2516 let snapshot = buffer.read(cx).snapshot();
2517 self.linked_edit_ranges
2518 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2519 .map(|ranges| (ranges, snapshot, buffer))
2520 })?;
2521 use text::ToOffset as TO;
2522 // find offset from the start of current range to current cursor position
2523 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2524
2525 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2526 let start_difference = start_offset - start_byte_offset;
2527 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2528 let end_difference = end_offset - start_byte_offset;
2529 // Current range has associated linked ranges.
2530 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2531 for range in linked_ranges.iter() {
2532 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2533 let end_offset = start_offset + end_difference;
2534 let start_offset = start_offset + start_difference;
2535 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2536 continue;
2537 }
2538 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2539 if s.start.buffer_id != selection.start.buffer_id
2540 || s.end.buffer_id != selection.end.buffer_id
2541 {
2542 return false;
2543 }
2544 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2545 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2546 }) {
2547 continue;
2548 }
2549 let start = buffer_snapshot.anchor_after(start_offset);
2550 let end = buffer_snapshot.anchor_after(end_offset);
2551 linked_edits
2552 .entry(buffer.clone())
2553 .or_default()
2554 .push(start..end);
2555 }
2556 Some(linked_edits)
2557 }
2558
2559 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2560 let text: Arc<str> = text.into();
2561
2562 if self.read_only(cx) {
2563 return;
2564 }
2565
2566 let selections = self.selections.all_adjusted(cx);
2567 let mut bracket_inserted = false;
2568 let mut edits = Vec::new();
2569 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2570 let mut new_selections = Vec::with_capacity(selections.len());
2571 let mut new_autoclose_regions = Vec::new();
2572 let snapshot = self.buffer.read(cx).read(cx);
2573
2574 for (selection, autoclose_region) in
2575 self.selections_with_autoclose_regions(selections, &snapshot)
2576 {
2577 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2578 // Determine if the inserted text matches the opening or closing
2579 // bracket of any of this language's bracket pairs.
2580 let mut bracket_pair = None;
2581 let mut is_bracket_pair_start = false;
2582 let mut is_bracket_pair_end = false;
2583 if !text.is_empty() {
2584 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2585 // and they are removing the character that triggered IME popup.
2586 for (pair, enabled) in scope.brackets() {
2587 if !pair.close && !pair.surround {
2588 continue;
2589 }
2590
2591 if enabled && pair.start.ends_with(text.as_ref()) {
2592 let prefix_len = pair.start.len() - text.len();
2593 let preceding_text_matches_prefix = prefix_len == 0
2594 || (selection.start.column >= (prefix_len as u32)
2595 && snapshot.contains_str_at(
2596 Point::new(
2597 selection.start.row,
2598 selection.start.column - (prefix_len as u32),
2599 ),
2600 &pair.start[..prefix_len],
2601 ));
2602 if preceding_text_matches_prefix {
2603 bracket_pair = Some(pair.clone());
2604 is_bracket_pair_start = true;
2605 break;
2606 }
2607 }
2608 if pair.end.as_str() == text.as_ref() {
2609 bracket_pair = Some(pair.clone());
2610 is_bracket_pair_end = true;
2611 break;
2612 }
2613 }
2614 }
2615
2616 if let Some(bracket_pair) = bracket_pair {
2617 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2618 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2619 let auto_surround =
2620 self.use_auto_surround && snapshot_settings.use_auto_surround;
2621 if selection.is_empty() {
2622 if is_bracket_pair_start {
2623 // If the inserted text is a suffix of an opening bracket and the
2624 // selection is preceded by the rest of the opening bracket, then
2625 // insert the closing bracket.
2626 let following_text_allows_autoclose = snapshot
2627 .chars_at(selection.start)
2628 .next()
2629 .map_or(true, |c| scope.should_autoclose_before(c));
2630
2631 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2632 && bracket_pair.start.len() == 1
2633 {
2634 let target = bracket_pair.start.chars().next().unwrap();
2635 let current_line_count = snapshot
2636 .reversed_chars_at(selection.start)
2637 .take_while(|&c| c != '\n')
2638 .filter(|&c| c == target)
2639 .count();
2640 current_line_count % 2 == 1
2641 } else {
2642 false
2643 };
2644
2645 if autoclose
2646 && bracket_pair.close
2647 && following_text_allows_autoclose
2648 && !is_closing_quote
2649 {
2650 let anchor = snapshot.anchor_before(selection.end);
2651 new_selections.push((selection.map(|_| anchor), text.len()));
2652 new_autoclose_regions.push((
2653 anchor,
2654 text.len(),
2655 selection.id,
2656 bracket_pair.clone(),
2657 ));
2658 edits.push((
2659 selection.range(),
2660 format!("{}{}", text, bracket_pair.end).into(),
2661 ));
2662 bracket_inserted = true;
2663 continue;
2664 }
2665 }
2666
2667 if let Some(region) = autoclose_region {
2668 // If the selection is followed by an auto-inserted closing bracket,
2669 // then don't insert that closing bracket again; just move the selection
2670 // past the closing bracket.
2671 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2672 && text.as_ref() == region.pair.end.as_str();
2673 if should_skip {
2674 let anchor = snapshot.anchor_after(selection.end);
2675 new_selections
2676 .push((selection.map(|_| anchor), region.pair.end.len()));
2677 continue;
2678 }
2679 }
2680
2681 let always_treat_brackets_as_autoclosed = snapshot
2682 .settings_at(selection.start, cx)
2683 .always_treat_brackets_as_autoclosed;
2684 if always_treat_brackets_as_autoclosed
2685 && is_bracket_pair_end
2686 && snapshot.contains_str_at(selection.end, text.as_ref())
2687 {
2688 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2689 // and the inserted text is a closing bracket and the selection is followed
2690 // by the closing bracket then move the selection past the closing bracket.
2691 let anchor = snapshot.anchor_after(selection.end);
2692 new_selections.push((selection.map(|_| anchor), text.len()));
2693 continue;
2694 }
2695 }
2696 // If an opening bracket is 1 character long and is typed while
2697 // text is selected, then surround that text with the bracket pair.
2698 else if auto_surround
2699 && bracket_pair.surround
2700 && is_bracket_pair_start
2701 && bracket_pair.start.chars().count() == 1
2702 {
2703 edits.push((selection.start..selection.start, text.clone()));
2704 edits.push((
2705 selection.end..selection.end,
2706 bracket_pair.end.as_str().into(),
2707 ));
2708 bracket_inserted = true;
2709 new_selections.push((
2710 Selection {
2711 id: selection.id,
2712 start: snapshot.anchor_after(selection.start),
2713 end: snapshot.anchor_before(selection.end),
2714 reversed: selection.reversed,
2715 goal: selection.goal,
2716 },
2717 0,
2718 ));
2719 continue;
2720 }
2721 }
2722 }
2723
2724 if self.auto_replace_emoji_shortcode
2725 && selection.is_empty()
2726 && text.as_ref().ends_with(':')
2727 {
2728 if let Some(possible_emoji_short_code) =
2729 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2730 {
2731 if !possible_emoji_short_code.is_empty() {
2732 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2733 let emoji_shortcode_start = Point::new(
2734 selection.start.row,
2735 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2736 );
2737
2738 // Remove shortcode from buffer
2739 edits.push((
2740 emoji_shortcode_start..selection.start,
2741 "".to_string().into(),
2742 ));
2743 new_selections.push((
2744 Selection {
2745 id: selection.id,
2746 start: snapshot.anchor_after(emoji_shortcode_start),
2747 end: snapshot.anchor_before(selection.start),
2748 reversed: selection.reversed,
2749 goal: selection.goal,
2750 },
2751 0,
2752 ));
2753
2754 // Insert emoji
2755 let selection_start_anchor = snapshot.anchor_after(selection.start);
2756 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2757 edits.push((selection.start..selection.end, emoji.to_string().into()));
2758
2759 continue;
2760 }
2761 }
2762 }
2763 }
2764
2765 // If not handling any auto-close operation, then just replace the selected
2766 // text with the given input and move the selection to the end of the
2767 // newly inserted text.
2768 let anchor = snapshot.anchor_after(selection.end);
2769 if !self.linked_edit_ranges.is_empty() {
2770 let start_anchor = snapshot.anchor_before(selection.start);
2771
2772 let is_word_char = text.chars().next().map_or(true, |char| {
2773 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2774 classifier.is_word(char)
2775 });
2776
2777 if is_word_char {
2778 if let Some(ranges) = self
2779 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2780 {
2781 for (buffer, edits) in ranges {
2782 linked_edits
2783 .entry(buffer.clone())
2784 .or_default()
2785 .extend(edits.into_iter().map(|range| (range, text.clone())));
2786 }
2787 }
2788 }
2789 }
2790
2791 new_selections.push((selection.map(|_| anchor), 0));
2792 edits.push((selection.start..selection.end, text.clone()));
2793 }
2794
2795 drop(snapshot);
2796
2797 self.transact(cx, |this, cx| {
2798 this.buffer.update(cx, |buffer, cx| {
2799 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2800 });
2801 for (buffer, edits) in linked_edits {
2802 buffer.update(cx, |buffer, cx| {
2803 let snapshot = buffer.snapshot();
2804 let edits = edits
2805 .into_iter()
2806 .map(|(range, text)| {
2807 use text::ToPoint as TP;
2808 let end_point = TP::to_point(&range.end, &snapshot);
2809 let start_point = TP::to_point(&range.start, &snapshot);
2810 (start_point..end_point, text)
2811 })
2812 .sorted_by_key(|(range, _)| range.start)
2813 .collect::<Vec<_>>();
2814 buffer.edit(edits, None, cx);
2815 })
2816 }
2817 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2818 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2819 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2820 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2821 .zip(new_selection_deltas)
2822 .map(|(selection, delta)| Selection {
2823 id: selection.id,
2824 start: selection.start + delta,
2825 end: selection.end + delta,
2826 reversed: selection.reversed,
2827 goal: SelectionGoal::None,
2828 })
2829 .collect::<Vec<_>>();
2830
2831 let mut i = 0;
2832 for (position, delta, selection_id, pair) in new_autoclose_regions {
2833 let position = position.to_offset(&map.buffer_snapshot) + delta;
2834 let start = map.buffer_snapshot.anchor_before(position);
2835 let end = map.buffer_snapshot.anchor_after(position);
2836 while let Some(existing_state) = this.autoclose_regions.get(i) {
2837 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2838 Ordering::Less => i += 1,
2839 Ordering::Greater => break,
2840 Ordering::Equal => {
2841 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2842 Ordering::Less => i += 1,
2843 Ordering::Equal => break,
2844 Ordering::Greater => break,
2845 }
2846 }
2847 }
2848 }
2849 this.autoclose_regions.insert(
2850 i,
2851 AutocloseRegion {
2852 selection_id,
2853 range: start..end,
2854 pair,
2855 },
2856 );
2857 }
2858
2859 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2860 s.select(new_selections)
2861 });
2862
2863 if !bracket_inserted {
2864 if let Some(on_type_format_task) =
2865 this.trigger_on_type_formatting(text.to_string(), cx)
2866 {
2867 on_type_format_task.detach_and_log_err(cx);
2868 }
2869 }
2870
2871 let editor_settings = EditorSettings::get_global(cx);
2872 if bracket_inserted
2873 && (editor_settings.auto_signature_help
2874 || editor_settings.show_signature_help_after_edits)
2875 {
2876 this.show_signature_help(&ShowSignatureHelp, cx);
2877 }
2878
2879 this.trigger_completion_on_input(&text, true, cx);
2880 linked_editing_ranges::refresh_linked_ranges(this, cx);
2881 this.refresh_inline_completion(true, false, cx);
2882 });
2883 }
2884
2885 fn find_possible_emoji_shortcode_at_position(
2886 snapshot: &MultiBufferSnapshot,
2887 position: Point,
2888 ) -> Option<String> {
2889 let mut chars = Vec::new();
2890 let mut found_colon = false;
2891 for char in snapshot.reversed_chars_at(position).take(100) {
2892 // Found a possible emoji shortcode in the middle of the buffer
2893 if found_colon {
2894 if char.is_whitespace() {
2895 chars.reverse();
2896 return Some(chars.iter().collect());
2897 }
2898 // If the previous character is not a whitespace, we are in the middle of a word
2899 // and we only want to complete the shortcode if the word is made up of other emojis
2900 let mut containing_word = String::new();
2901 for ch in snapshot
2902 .reversed_chars_at(position)
2903 .skip(chars.len() + 1)
2904 .take(100)
2905 {
2906 if ch.is_whitespace() {
2907 break;
2908 }
2909 containing_word.push(ch);
2910 }
2911 let containing_word = containing_word.chars().rev().collect::<String>();
2912 if util::word_consists_of_emojis(containing_word.as_str()) {
2913 chars.reverse();
2914 return Some(chars.iter().collect());
2915 }
2916 }
2917
2918 if char.is_whitespace() || !char.is_ascii() {
2919 return None;
2920 }
2921 if char == ':' {
2922 found_colon = true;
2923 } else {
2924 chars.push(char);
2925 }
2926 }
2927 // Found a possible emoji shortcode at the beginning of the buffer
2928 chars.reverse();
2929 Some(chars.iter().collect())
2930 }
2931
2932 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2933 self.transact(cx, |this, cx| {
2934 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2935 let selections = this.selections.all::<usize>(cx);
2936 let multi_buffer = this.buffer.read(cx);
2937 let buffer = multi_buffer.snapshot(cx);
2938 selections
2939 .iter()
2940 .map(|selection| {
2941 let start_point = selection.start.to_point(&buffer);
2942 let mut indent =
2943 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2944 indent.len = cmp::min(indent.len, start_point.column);
2945 let start = selection.start;
2946 let end = selection.end;
2947 let selection_is_empty = start == end;
2948 let language_scope = buffer.language_scope_at(start);
2949 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2950 &language_scope
2951 {
2952 let leading_whitespace_len = buffer
2953 .reversed_chars_at(start)
2954 .take_while(|c| c.is_whitespace() && *c != '\n')
2955 .map(|c| c.len_utf8())
2956 .sum::<usize>();
2957
2958 let trailing_whitespace_len = buffer
2959 .chars_at(end)
2960 .take_while(|c| c.is_whitespace() && *c != '\n')
2961 .map(|c| c.len_utf8())
2962 .sum::<usize>();
2963
2964 let insert_extra_newline =
2965 language.brackets().any(|(pair, enabled)| {
2966 let pair_start = pair.start.trim_end();
2967 let pair_end = pair.end.trim_start();
2968
2969 enabled
2970 && pair.newline
2971 && buffer.contains_str_at(
2972 end + trailing_whitespace_len,
2973 pair_end,
2974 )
2975 && buffer.contains_str_at(
2976 (start - leading_whitespace_len)
2977 .saturating_sub(pair_start.len()),
2978 pair_start,
2979 )
2980 });
2981
2982 // Comment extension on newline is allowed only for cursor selections
2983 let comment_delimiter = maybe!({
2984 if !selection_is_empty {
2985 return None;
2986 }
2987
2988 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2989 return None;
2990 }
2991
2992 let delimiters = language.line_comment_prefixes();
2993 let max_len_of_delimiter =
2994 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2995 let (snapshot, range) =
2996 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2997
2998 let mut index_of_first_non_whitespace = 0;
2999 let comment_candidate = snapshot
3000 .chars_for_range(range)
3001 .skip_while(|c| {
3002 let should_skip = c.is_whitespace();
3003 if should_skip {
3004 index_of_first_non_whitespace += 1;
3005 }
3006 should_skip
3007 })
3008 .take(max_len_of_delimiter)
3009 .collect::<String>();
3010 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3011 comment_candidate.starts_with(comment_prefix.as_ref())
3012 })?;
3013 let cursor_is_placed_after_comment_marker =
3014 index_of_first_non_whitespace + comment_prefix.len()
3015 <= start_point.column as usize;
3016 if cursor_is_placed_after_comment_marker {
3017 Some(comment_prefix.clone())
3018 } else {
3019 None
3020 }
3021 });
3022 (comment_delimiter, insert_extra_newline)
3023 } else {
3024 (None, false)
3025 };
3026
3027 let capacity_for_delimiter = comment_delimiter
3028 .as_deref()
3029 .map(str::len)
3030 .unwrap_or_default();
3031 let mut new_text =
3032 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3033 new_text.push('\n');
3034 new_text.extend(indent.chars());
3035 if let Some(delimiter) = &comment_delimiter {
3036 new_text.push_str(delimiter);
3037 }
3038 if insert_extra_newline {
3039 new_text = new_text.repeat(2);
3040 }
3041
3042 let anchor = buffer.anchor_after(end);
3043 let new_selection = selection.map(|_| anchor);
3044 (
3045 (start..end, new_text),
3046 (insert_extra_newline, new_selection),
3047 )
3048 })
3049 .unzip()
3050 };
3051
3052 this.edit_with_autoindent(edits, cx);
3053 let buffer = this.buffer.read(cx).snapshot(cx);
3054 let new_selections = selection_fixup_info
3055 .into_iter()
3056 .map(|(extra_newline_inserted, new_selection)| {
3057 let mut cursor = new_selection.end.to_point(&buffer);
3058 if extra_newline_inserted {
3059 cursor.row -= 1;
3060 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3061 }
3062 new_selection.map(|_| cursor)
3063 })
3064 .collect();
3065
3066 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3067 this.refresh_inline_completion(true, false, cx);
3068 });
3069 }
3070
3071 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3072 let buffer = self.buffer.read(cx);
3073 let snapshot = buffer.snapshot(cx);
3074
3075 let mut edits = Vec::new();
3076 let mut rows = Vec::new();
3077
3078 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3079 let cursor = selection.head();
3080 let row = cursor.row;
3081
3082 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3083
3084 let newline = "\n".to_string();
3085 edits.push((start_of_line..start_of_line, newline));
3086
3087 rows.push(row + rows_inserted as u32);
3088 }
3089
3090 self.transact(cx, |editor, cx| {
3091 editor.edit(edits, cx);
3092
3093 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3094 let mut index = 0;
3095 s.move_cursors_with(|map, _, _| {
3096 let row = rows[index];
3097 index += 1;
3098
3099 let point = Point::new(row, 0);
3100 let boundary = map.next_line_boundary(point).1;
3101 let clipped = map.clip_point(boundary, Bias::Left);
3102
3103 (clipped, SelectionGoal::None)
3104 });
3105 });
3106
3107 let mut indent_edits = Vec::new();
3108 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3109 for row in rows {
3110 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3111 for (row, indent) in indents {
3112 if indent.len == 0 {
3113 continue;
3114 }
3115
3116 let text = match indent.kind {
3117 IndentKind::Space => " ".repeat(indent.len as usize),
3118 IndentKind::Tab => "\t".repeat(indent.len as usize),
3119 };
3120 let point = Point::new(row.0, 0);
3121 indent_edits.push((point..point, text));
3122 }
3123 }
3124 editor.edit(indent_edits, cx);
3125 });
3126 }
3127
3128 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3129 let buffer = self.buffer.read(cx);
3130 let snapshot = buffer.snapshot(cx);
3131
3132 let mut edits = Vec::new();
3133 let mut rows = Vec::new();
3134 let mut rows_inserted = 0;
3135
3136 for selection in self.selections.all_adjusted(cx) {
3137 let cursor = selection.head();
3138 let row = cursor.row;
3139
3140 let point = Point::new(row + 1, 0);
3141 let start_of_line = snapshot.clip_point(point, Bias::Left);
3142
3143 let newline = "\n".to_string();
3144 edits.push((start_of_line..start_of_line, newline));
3145
3146 rows_inserted += 1;
3147 rows.push(row + rows_inserted);
3148 }
3149
3150 self.transact(cx, |editor, cx| {
3151 editor.edit(edits, cx);
3152
3153 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3154 let mut index = 0;
3155 s.move_cursors_with(|map, _, _| {
3156 let row = rows[index];
3157 index += 1;
3158
3159 let point = Point::new(row, 0);
3160 let boundary = map.next_line_boundary(point).1;
3161 let clipped = map.clip_point(boundary, Bias::Left);
3162
3163 (clipped, SelectionGoal::None)
3164 });
3165 });
3166
3167 let mut indent_edits = Vec::new();
3168 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3169 for row in rows {
3170 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3171 for (row, indent) in indents {
3172 if indent.len == 0 {
3173 continue;
3174 }
3175
3176 let text = match indent.kind {
3177 IndentKind::Space => " ".repeat(indent.len as usize),
3178 IndentKind::Tab => "\t".repeat(indent.len as usize),
3179 };
3180 let point = Point::new(row.0, 0);
3181 indent_edits.push((point..point, text));
3182 }
3183 }
3184 editor.edit(indent_edits, cx);
3185 });
3186 }
3187
3188 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3189 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3190 original_indent_columns: Vec::new(),
3191 });
3192 self.insert_with_autoindent_mode(text, autoindent, cx);
3193 }
3194
3195 fn insert_with_autoindent_mode(
3196 &mut self,
3197 text: &str,
3198 autoindent_mode: Option<AutoindentMode>,
3199 cx: &mut ViewContext<Self>,
3200 ) {
3201 if self.read_only(cx) {
3202 return;
3203 }
3204
3205 let text: Arc<str> = text.into();
3206 self.transact(cx, |this, cx| {
3207 let old_selections = this.selections.all_adjusted(cx);
3208 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3209 let anchors = {
3210 let snapshot = buffer.read(cx);
3211 old_selections
3212 .iter()
3213 .map(|s| {
3214 let anchor = snapshot.anchor_after(s.head());
3215 s.map(|_| anchor)
3216 })
3217 .collect::<Vec<_>>()
3218 };
3219 buffer.edit(
3220 old_selections
3221 .iter()
3222 .map(|s| (s.start..s.end, text.clone())),
3223 autoindent_mode,
3224 cx,
3225 );
3226 anchors
3227 });
3228
3229 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3230 s.select_anchors(selection_anchors);
3231 })
3232 });
3233 }
3234
3235 fn trigger_completion_on_input(
3236 &mut self,
3237 text: &str,
3238 trigger_in_words: bool,
3239 cx: &mut ViewContext<Self>,
3240 ) {
3241 if self.is_completion_trigger(text, trigger_in_words, cx) {
3242 self.show_completions(
3243 &ShowCompletions {
3244 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3245 },
3246 cx,
3247 );
3248 } else {
3249 self.hide_context_menu(cx);
3250 }
3251 }
3252
3253 fn is_completion_trigger(
3254 &self,
3255 text: &str,
3256 trigger_in_words: bool,
3257 cx: &mut ViewContext<Self>,
3258 ) -> bool {
3259 let position = self.selections.newest_anchor().head();
3260 let multibuffer = self.buffer.read(cx);
3261 let Some(buffer) = position
3262 .buffer_id
3263 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3264 else {
3265 return false;
3266 };
3267
3268 if let Some(completion_provider) = &self.completion_provider {
3269 completion_provider.is_completion_trigger(
3270 &buffer,
3271 position.text_anchor,
3272 text,
3273 trigger_in_words,
3274 cx,
3275 )
3276 } else {
3277 false
3278 }
3279 }
3280
3281 /// If any empty selections is touching the start of its innermost containing autoclose
3282 /// region, expand it to select the brackets.
3283 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3284 let selections = self.selections.all::<usize>(cx);
3285 let buffer = self.buffer.read(cx).read(cx);
3286 let new_selections = self
3287 .selections_with_autoclose_regions(selections, &buffer)
3288 .map(|(mut selection, region)| {
3289 if !selection.is_empty() {
3290 return selection;
3291 }
3292
3293 if let Some(region) = region {
3294 let mut range = region.range.to_offset(&buffer);
3295 if selection.start == range.start && range.start >= region.pair.start.len() {
3296 range.start -= region.pair.start.len();
3297 if buffer.contains_str_at(range.start, ®ion.pair.start)
3298 && buffer.contains_str_at(range.end, ®ion.pair.end)
3299 {
3300 range.end += region.pair.end.len();
3301 selection.start = range.start;
3302 selection.end = range.end;
3303
3304 return selection;
3305 }
3306 }
3307 }
3308
3309 let always_treat_brackets_as_autoclosed = buffer
3310 .settings_at(selection.start, cx)
3311 .always_treat_brackets_as_autoclosed;
3312
3313 if !always_treat_brackets_as_autoclosed {
3314 return selection;
3315 }
3316
3317 if let Some(scope) = buffer.language_scope_at(selection.start) {
3318 for (pair, enabled) in scope.brackets() {
3319 if !enabled || !pair.close {
3320 continue;
3321 }
3322
3323 if buffer.contains_str_at(selection.start, &pair.end) {
3324 let pair_start_len = pair.start.len();
3325 if buffer.contains_str_at(
3326 selection.start.saturating_sub(pair_start_len),
3327 &pair.start,
3328 ) {
3329 selection.start -= pair_start_len;
3330 selection.end += pair.end.len();
3331
3332 return selection;
3333 }
3334 }
3335 }
3336 }
3337
3338 selection
3339 })
3340 .collect();
3341
3342 drop(buffer);
3343 self.change_selections(None, cx, |selections| selections.select(new_selections));
3344 }
3345
3346 /// Iterate the given selections, and for each one, find the smallest surrounding
3347 /// autoclose region. This uses the ordering of the selections and the autoclose
3348 /// regions to avoid repeated comparisons.
3349 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3350 &'a self,
3351 selections: impl IntoIterator<Item = Selection<D>>,
3352 buffer: &'a MultiBufferSnapshot,
3353 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3354 let mut i = 0;
3355 let mut regions = self.autoclose_regions.as_slice();
3356 selections.into_iter().map(move |selection| {
3357 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3358
3359 let mut enclosing = None;
3360 while let Some(pair_state) = regions.get(i) {
3361 if pair_state.range.end.to_offset(buffer) < range.start {
3362 regions = ®ions[i + 1..];
3363 i = 0;
3364 } else if pair_state.range.start.to_offset(buffer) > range.end {
3365 break;
3366 } else {
3367 if pair_state.selection_id == selection.id {
3368 enclosing = Some(pair_state);
3369 }
3370 i += 1;
3371 }
3372 }
3373
3374 (selection, enclosing)
3375 })
3376 }
3377
3378 /// Remove any autoclose regions that no longer contain their selection.
3379 fn invalidate_autoclose_regions(
3380 &mut self,
3381 mut selections: &[Selection<Anchor>],
3382 buffer: &MultiBufferSnapshot,
3383 ) {
3384 self.autoclose_regions.retain(|state| {
3385 let mut i = 0;
3386 while let Some(selection) = selections.get(i) {
3387 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3388 selections = &selections[1..];
3389 continue;
3390 }
3391 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3392 break;
3393 }
3394 if selection.id == state.selection_id {
3395 return true;
3396 } else {
3397 i += 1;
3398 }
3399 }
3400 false
3401 });
3402 }
3403
3404 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3405 let offset = position.to_offset(buffer);
3406 let (word_range, kind) = buffer.surrounding_word(offset, true);
3407 if offset > word_range.start && kind == Some(CharKind::Word) {
3408 Some(
3409 buffer
3410 .text_for_range(word_range.start..offset)
3411 .collect::<String>(),
3412 )
3413 } else {
3414 None
3415 }
3416 }
3417
3418 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3419 self.refresh_inlay_hints(
3420 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3421 cx,
3422 );
3423 }
3424
3425 pub fn inlay_hints_enabled(&self) -> bool {
3426 self.inlay_hint_cache.enabled
3427 }
3428
3429 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3430 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3431 return;
3432 }
3433
3434 let reason_description = reason.description();
3435 let ignore_debounce = matches!(
3436 reason,
3437 InlayHintRefreshReason::SettingsChange(_)
3438 | InlayHintRefreshReason::Toggle(_)
3439 | InlayHintRefreshReason::ExcerptsRemoved(_)
3440 );
3441 let (invalidate_cache, required_languages) = match reason {
3442 InlayHintRefreshReason::Toggle(enabled) => {
3443 self.inlay_hint_cache.enabled = enabled;
3444 if enabled {
3445 (InvalidationStrategy::RefreshRequested, None)
3446 } else {
3447 self.inlay_hint_cache.clear();
3448 self.splice_inlays(
3449 self.visible_inlay_hints(cx)
3450 .iter()
3451 .map(|inlay| inlay.id)
3452 .collect(),
3453 Vec::new(),
3454 cx,
3455 );
3456 return;
3457 }
3458 }
3459 InlayHintRefreshReason::SettingsChange(new_settings) => {
3460 match self.inlay_hint_cache.update_settings(
3461 &self.buffer,
3462 new_settings,
3463 self.visible_inlay_hints(cx),
3464 cx,
3465 ) {
3466 ControlFlow::Break(Some(InlaySplice {
3467 to_remove,
3468 to_insert,
3469 })) => {
3470 self.splice_inlays(to_remove, to_insert, cx);
3471 return;
3472 }
3473 ControlFlow::Break(None) => return,
3474 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3475 }
3476 }
3477 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3478 if let Some(InlaySplice {
3479 to_remove,
3480 to_insert,
3481 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3482 {
3483 self.splice_inlays(to_remove, to_insert, cx);
3484 }
3485 return;
3486 }
3487 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3488 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3489 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3490 }
3491 InlayHintRefreshReason::RefreshRequested => {
3492 (InvalidationStrategy::RefreshRequested, None)
3493 }
3494 };
3495
3496 if let Some(InlaySplice {
3497 to_remove,
3498 to_insert,
3499 }) = self.inlay_hint_cache.spawn_hint_refresh(
3500 reason_description,
3501 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3502 invalidate_cache,
3503 ignore_debounce,
3504 cx,
3505 ) {
3506 self.splice_inlays(to_remove, to_insert, cx);
3507 }
3508 }
3509
3510 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3511 self.display_map
3512 .read(cx)
3513 .current_inlays()
3514 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3515 .cloned()
3516 .collect()
3517 }
3518
3519 pub fn excerpts_for_inlay_hints_query(
3520 &self,
3521 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3522 cx: &mut ViewContext<Editor>,
3523 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3524 let Some(project) = self.project.as_ref() else {
3525 return HashMap::default();
3526 };
3527 let project = project.read(cx);
3528 let multi_buffer = self.buffer().read(cx);
3529 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3530 let multi_buffer_visible_start = self
3531 .scroll_manager
3532 .anchor()
3533 .anchor
3534 .to_point(&multi_buffer_snapshot);
3535 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3536 multi_buffer_visible_start
3537 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3538 Bias::Left,
3539 );
3540 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3541 multi_buffer
3542 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3543 .into_iter()
3544 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3545 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3546 let buffer = buffer_handle.read(cx);
3547 let buffer_file = project::File::from_dyn(buffer.file())?;
3548 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3549 let worktree_entry = buffer_worktree
3550 .read(cx)
3551 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3552 if worktree_entry.is_ignored {
3553 return None;
3554 }
3555
3556 let language = buffer.language()?;
3557 if let Some(restrict_to_languages) = restrict_to_languages {
3558 if !restrict_to_languages.contains(language) {
3559 return None;
3560 }
3561 }
3562 Some((
3563 excerpt_id,
3564 (
3565 buffer_handle,
3566 buffer.version().clone(),
3567 excerpt_visible_range,
3568 ),
3569 ))
3570 })
3571 .collect()
3572 }
3573
3574 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3575 TextLayoutDetails {
3576 text_system: cx.text_system().clone(),
3577 editor_style: self.style.clone().unwrap(),
3578 rem_size: cx.rem_size(),
3579 scroll_anchor: self.scroll_manager.anchor(),
3580 visible_rows: self.visible_line_count(),
3581 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3582 }
3583 }
3584
3585 fn splice_inlays(
3586 &self,
3587 to_remove: Vec<InlayId>,
3588 to_insert: Vec<Inlay>,
3589 cx: &mut ViewContext<Self>,
3590 ) {
3591 self.display_map.update(cx, |display_map, cx| {
3592 display_map.splice_inlays(to_remove, to_insert, cx)
3593 });
3594 cx.notify();
3595 }
3596
3597 fn trigger_on_type_formatting(
3598 &self,
3599 input: String,
3600 cx: &mut ViewContext<Self>,
3601 ) -> Option<Task<Result<()>>> {
3602 if input.len() != 1 {
3603 return None;
3604 }
3605
3606 let project = self.project.as_ref()?;
3607 let position = self.selections.newest_anchor().head();
3608 let (buffer, buffer_position) = self
3609 .buffer
3610 .read(cx)
3611 .text_anchor_for_position(position, cx)?;
3612
3613 let settings = language_settings::language_settings(
3614 buffer
3615 .read(cx)
3616 .language_at(buffer_position)
3617 .map(|l| l.name()),
3618 buffer.read(cx).file(),
3619 cx,
3620 );
3621 if !settings.use_on_type_format {
3622 return None;
3623 }
3624
3625 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3626 // hence we do LSP request & edit on host side only — add formats to host's history.
3627 let push_to_lsp_host_history = true;
3628 // If this is not the host, append its history with new edits.
3629 let push_to_client_history = project.read(cx).is_via_collab();
3630
3631 let on_type_formatting = project.update(cx, |project, cx| {
3632 project.on_type_format(
3633 buffer.clone(),
3634 buffer_position,
3635 input,
3636 push_to_lsp_host_history,
3637 cx,
3638 )
3639 });
3640 Some(cx.spawn(|editor, mut cx| async move {
3641 if let Some(transaction) = on_type_formatting.await? {
3642 if push_to_client_history {
3643 buffer
3644 .update(&mut cx, |buffer, _| {
3645 buffer.push_transaction(transaction, Instant::now());
3646 })
3647 .ok();
3648 }
3649 editor.update(&mut cx, |editor, cx| {
3650 editor.refresh_document_highlights(cx);
3651 })?;
3652 }
3653 Ok(())
3654 }))
3655 }
3656
3657 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3658 if self.pending_rename.is_some() {
3659 return;
3660 }
3661
3662 let Some(provider) = self.completion_provider.as_ref() else {
3663 return;
3664 };
3665
3666 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3667 return;
3668 }
3669
3670 let position = self.selections.newest_anchor().head();
3671 let (buffer, buffer_position) =
3672 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3673 output
3674 } else {
3675 return;
3676 };
3677 let show_completion_documentation = buffer
3678 .read(cx)
3679 .snapshot()
3680 .settings_at(buffer_position, cx)
3681 .show_completion_documentation;
3682
3683 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3684
3685 let trigger_kind = match &options.trigger {
3686 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3687 CompletionTriggerKind::TRIGGER_CHARACTER
3688 }
3689 _ => CompletionTriggerKind::INVOKED,
3690 };
3691 let completion_context = CompletionContext {
3692 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3693 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3694 Some(String::from(trigger))
3695 } else {
3696 None
3697 }
3698 }),
3699 trigger_kind,
3700 };
3701 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3702 let sort_completions = provider.sort_completions();
3703
3704 let id = post_inc(&mut self.next_completion_id);
3705 let task = cx.spawn(|editor, mut cx| {
3706 async move {
3707 editor.update(&mut cx, |this, _| {
3708 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3709 })?;
3710 let completions = completions.await.log_err();
3711 let menu = if let Some(completions) = completions {
3712 let mut menu = CompletionsMenu::new(
3713 id,
3714 sort_completions,
3715 show_completion_documentation,
3716 position,
3717 buffer.clone(),
3718 completions.into(),
3719 );
3720
3721 menu.filter(query.as_deref(), cx.background_executor().clone())
3722 .await;
3723
3724 menu.visible().then_some(menu)
3725 } else {
3726 None
3727 };
3728
3729 editor.update(&mut cx, |editor, cx| {
3730 match editor.context_menu.borrow().as_ref() {
3731 None => {}
3732 Some(CodeContextMenu::Completions(prev_menu)) => {
3733 if prev_menu.id > id {
3734 return;
3735 }
3736 }
3737 _ => return,
3738 }
3739
3740 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3741 let mut menu = menu.unwrap();
3742 menu.resolve_selected_completion(editor.completion_provider.as_deref(), cx);
3743
3744 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3745 editor.hide_active_inline_completion(cx);
3746 menu.show_inline_completion_hint(hint);
3747 }
3748
3749 *editor.context_menu.borrow_mut() =
3750 Some(CodeContextMenu::Completions(menu));
3751
3752 cx.notify();
3753 } else if editor.completion_tasks.len() <= 1 {
3754 // If there are no more completion tasks and the last menu was
3755 // empty, we should hide it. If it was already hidden, we should
3756 // also show the copilot completion when available.
3757 editor.hide_context_menu(cx);
3758 }
3759 })?;
3760
3761 Ok::<_, anyhow::Error>(())
3762 }
3763 .log_err()
3764 });
3765
3766 self.completion_tasks.push((id, task));
3767 }
3768
3769 pub fn confirm_completion(
3770 &mut self,
3771 action: &ConfirmCompletion,
3772 cx: &mut ViewContext<Self>,
3773 ) -> Option<Task<Result<()>>> {
3774 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3775 }
3776
3777 pub fn compose_completion(
3778 &mut self,
3779 action: &ComposeCompletion,
3780 cx: &mut ViewContext<Self>,
3781 ) -> Option<Task<Result<()>>> {
3782 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3783 }
3784
3785 fn do_completion(
3786 &mut self,
3787 item_ix: Option<usize>,
3788 intent: CompletionIntent,
3789 cx: &mut ViewContext<Editor>,
3790 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3791 use language::ToOffset as _;
3792
3793 let completions_menu =
3794 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3795 menu
3796 } else {
3797 return None;
3798 };
3799
3800 let mat = completions_menu
3801 .entries
3802 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3803
3804 let mat = match mat {
3805 CompletionEntry::InlineCompletionHint { .. } => {
3806 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3807 cx.stop_propagation();
3808 return Some(Task::ready(Ok(())));
3809 }
3810 CompletionEntry::Match(mat) => {
3811 self.discard_inline_completion(true, cx);
3812 mat
3813 }
3814 };
3815
3816 let buffer_handle = completions_menu.buffer;
3817 let completions = completions_menu.completions.borrow_mut();
3818 let completion = completions.get(mat.candidate_id)?;
3819 cx.stop_propagation();
3820
3821 let snippet;
3822 let text;
3823
3824 if completion.is_snippet() {
3825 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3826 text = snippet.as_ref().unwrap().text.clone();
3827 } else {
3828 snippet = None;
3829 text = completion.new_text.clone();
3830 };
3831 let selections = self.selections.all::<usize>(cx);
3832 let buffer = buffer_handle.read(cx);
3833 let old_range = completion.old_range.to_offset(buffer);
3834 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3835
3836 let newest_selection = self.selections.newest_anchor();
3837 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3838 return None;
3839 }
3840
3841 let lookbehind = newest_selection
3842 .start
3843 .text_anchor
3844 .to_offset(buffer)
3845 .saturating_sub(old_range.start);
3846 let lookahead = old_range
3847 .end
3848 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3849 let mut common_prefix_len = old_text
3850 .bytes()
3851 .zip(text.bytes())
3852 .take_while(|(a, b)| a == b)
3853 .count();
3854
3855 let snapshot = self.buffer.read(cx).snapshot(cx);
3856 let mut range_to_replace: Option<Range<isize>> = None;
3857 let mut ranges = Vec::new();
3858 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3859 for selection in &selections {
3860 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3861 let start = selection.start.saturating_sub(lookbehind);
3862 let end = selection.end + lookahead;
3863 if selection.id == newest_selection.id {
3864 range_to_replace = Some(
3865 ((start + common_prefix_len) as isize - selection.start as isize)
3866 ..(end as isize - selection.start as isize),
3867 );
3868 }
3869 ranges.push(start + common_prefix_len..end);
3870 } else {
3871 common_prefix_len = 0;
3872 ranges.clear();
3873 ranges.extend(selections.iter().map(|s| {
3874 if s.id == newest_selection.id {
3875 range_to_replace = Some(
3876 old_range.start.to_offset_utf16(&snapshot).0 as isize
3877 - selection.start as isize
3878 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3879 - selection.start as isize,
3880 );
3881 old_range.clone()
3882 } else {
3883 s.start..s.end
3884 }
3885 }));
3886 break;
3887 }
3888 if !self.linked_edit_ranges.is_empty() {
3889 let start_anchor = snapshot.anchor_before(selection.head());
3890 let end_anchor = snapshot.anchor_after(selection.tail());
3891 if let Some(ranges) = self
3892 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3893 {
3894 for (buffer, edits) in ranges {
3895 linked_edits.entry(buffer.clone()).or_default().extend(
3896 edits
3897 .into_iter()
3898 .map(|range| (range, text[common_prefix_len..].to_owned())),
3899 );
3900 }
3901 }
3902 }
3903 }
3904 let text = &text[common_prefix_len..];
3905
3906 cx.emit(EditorEvent::InputHandled {
3907 utf16_range_to_replace: range_to_replace,
3908 text: text.into(),
3909 });
3910
3911 self.transact(cx, |this, cx| {
3912 if let Some(mut snippet) = snippet {
3913 snippet.text = text.to_string();
3914 for tabstop in snippet
3915 .tabstops
3916 .iter_mut()
3917 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3918 {
3919 tabstop.start -= common_prefix_len as isize;
3920 tabstop.end -= common_prefix_len as isize;
3921 }
3922
3923 this.insert_snippet(&ranges, snippet, cx).log_err();
3924 } else {
3925 this.buffer.update(cx, |buffer, cx| {
3926 buffer.edit(
3927 ranges.iter().map(|range| (range.clone(), text)),
3928 this.autoindent_mode.clone(),
3929 cx,
3930 );
3931 });
3932 }
3933 for (buffer, edits) in linked_edits {
3934 buffer.update(cx, |buffer, cx| {
3935 let snapshot = buffer.snapshot();
3936 let edits = edits
3937 .into_iter()
3938 .map(|(range, text)| {
3939 use text::ToPoint as TP;
3940 let end_point = TP::to_point(&range.end, &snapshot);
3941 let start_point = TP::to_point(&range.start, &snapshot);
3942 (start_point..end_point, text)
3943 })
3944 .sorted_by_key(|(range, _)| range.start)
3945 .collect::<Vec<_>>();
3946 buffer.edit(edits, None, cx);
3947 })
3948 }
3949
3950 this.refresh_inline_completion(true, false, cx);
3951 });
3952
3953 let show_new_completions_on_confirm = completion
3954 .confirm
3955 .as_ref()
3956 .map_or(false, |confirm| confirm(intent, cx));
3957 if show_new_completions_on_confirm {
3958 self.show_completions(&ShowCompletions { trigger: None }, cx);
3959 }
3960
3961 let provider = self.completion_provider.as_ref()?;
3962 let apply_edits = provider.apply_additional_edits_for_completion(
3963 buffer_handle,
3964 completion.clone(),
3965 true,
3966 cx,
3967 );
3968
3969 let editor_settings = EditorSettings::get_global(cx);
3970 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3971 // After the code completion is finished, users often want to know what signatures are needed.
3972 // so we should automatically call signature_help
3973 self.show_signature_help(&ShowSignatureHelp, cx);
3974 }
3975
3976 Some(cx.foreground_executor().spawn(async move {
3977 apply_edits.await?;
3978 Ok(())
3979 }))
3980 }
3981
3982 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3983 let mut context_menu = self.context_menu.borrow_mut();
3984 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3985 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3986 // Toggle if we're selecting the same one
3987 *context_menu = None;
3988 cx.notify();
3989 return;
3990 } else {
3991 // Otherwise, clear it and start a new one
3992 *context_menu = None;
3993 cx.notify();
3994 }
3995 }
3996 drop(context_menu);
3997 let snapshot = self.snapshot(cx);
3998 let deployed_from_indicator = action.deployed_from_indicator;
3999 let mut task = self.code_actions_task.take();
4000 let action = action.clone();
4001 cx.spawn(|editor, mut cx| async move {
4002 while let Some(prev_task) = task {
4003 prev_task.await.log_err();
4004 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4005 }
4006
4007 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4008 if editor.focus_handle.is_focused(cx) {
4009 let multibuffer_point = action
4010 .deployed_from_indicator
4011 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4012 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4013 let (buffer, buffer_row) = snapshot
4014 .buffer_snapshot
4015 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4016 .and_then(|(buffer_snapshot, range)| {
4017 editor
4018 .buffer
4019 .read(cx)
4020 .buffer(buffer_snapshot.remote_id())
4021 .map(|buffer| (buffer, range.start.row))
4022 })?;
4023 let (_, code_actions) = editor
4024 .available_code_actions
4025 .clone()
4026 .and_then(|(location, code_actions)| {
4027 let snapshot = location.buffer.read(cx).snapshot();
4028 let point_range = location.range.to_point(&snapshot);
4029 let point_range = point_range.start.row..=point_range.end.row;
4030 if point_range.contains(&buffer_row) {
4031 Some((location, code_actions))
4032 } else {
4033 None
4034 }
4035 })
4036 .unzip();
4037 let buffer_id = buffer.read(cx).remote_id();
4038 let tasks = editor
4039 .tasks
4040 .get(&(buffer_id, buffer_row))
4041 .map(|t| Arc::new(t.to_owned()));
4042 if tasks.is_none() && code_actions.is_none() {
4043 return None;
4044 }
4045
4046 editor.completion_tasks.clear();
4047 editor.discard_inline_completion(false, cx);
4048 let task_context =
4049 tasks
4050 .as_ref()
4051 .zip(editor.project.clone())
4052 .map(|(tasks, project)| {
4053 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4054 });
4055
4056 Some(cx.spawn(|editor, mut cx| async move {
4057 let task_context = match task_context {
4058 Some(task_context) => task_context.await,
4059 None => None,
4060 };
4061 let resolved_tasks =
4062 tasks.zip(task_context).map(|(tasks, task_context)| {
4063 Rc::new(ResolvedTasks {
4064 templates: tasks.resolve(&task_context).collect(),
4065 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4066 multibuffer_point.row,
4067 tasks.column,
4068 )),
4069 })
4070 });
4071 let spawn_straight_away = resolved_tasks
4072 .as_ref()
4073 .map_or(false, |tasks| tasks.templates.len() == 1)
4074 && code_actions
4075 .as_ref()
4076 .map_or(true, |actions| actions.is_empty());
4077 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4078 *editor.context_menu.borrow_mut() =
4079 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4080 buffer,
4081 actions: CodeActionContents {
4082 tasks: resolved_tasks,
4083 actions: code_actions,
4084 },
4085 selected_item: Default::default(),
4086 scroll_handle: UniformListScrollHandle::default(),
4087 deployed_from_indicator,
4088 }));
4089 if spawn_straight_away {
4090 if let Some(task) = editor.confirm_code_action(
4091 &ConfirmCodeAction { item_ix: Some(0) },
4092 cx,
4093 ) {
4094 cx.notify();
4095 return task;
4096 }
4097 }
4098 cx.notify();
4099 Task::ready(Ok(()))
4100 }) {
4101 task.await
4102 } else {
4103 Ok(())
4104 }
4105 }))
4106 } else {
4107 Some(Task::ready(Ok(())))
4108 }
4109 })?;
4110 if let Some(task) = spawned_test_task {
4111 task.await?;
4112 }
4113
4114 Ok::<_, anyhow::Error>(())
4115 })
4116 .detach_and_log_err(cx);
4117 }
4118
4119 pub fn confirm_code_action(
4120 &mut self,
4121 action: &ConfirmCodeAction,
4122 cx: &mut ViewContext<Self>,
4123 ) -> Option<Task<Result<()>>> {
4124 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4125 menu
4126 } else {
4127 return None;
4128 };
4129 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4130 let action = actions_menu.actions.get(action_ix)?;
4131 let title = action.label();
4132 let buffer = actions_menu.buffer;
4133 let workspace = self.workspace()?;
4134
4135 match action {
4136 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4137 workspace.update(cx, |workspace, cx| {
4138 workspace::tasks::schedule_resolved_task(
4139 workspace,
4140 task_source_kind,
4141 resolved_task,
4142 false,
4143 cx,
4144 );
4145
4146 Some(Task::ready(Ok(())))
4147 })
4148 }
4149 CodeActionsItem::CodeAction {
4150 excerpt_id,
4151 action,
4152 provider,
4153 } => {
4154 let apply_code_action =
4155 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4156 let workspace = workspace.downgrade();
4157 Some(cx.spawn(|editor, cx| async move {
4158 let project_transaction = apply_code_action.await?;
4159 Self::open_project_transaction(
4160 &editor,
4161 workspace,
4162 project_transaction,
4163 title,
4164 cx,
4165 )
4166 .await
4167 }))
4168 }
4169 }
4170 }
4171
4172 pub async fn open_project_transaction(
4173 this: &WeakView<Editor>,
4174 workspace: WeakView<Workspace>,
4175 transaction: ProjectTransaction,
4176 title: String,
4177 mut cx: AsyncWindowContext,
4178 ) -> Result<()> {
4179 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4180 cx.update(|cx| {
4181 entries.sort_unstable_by_key(|(buffer, _)| {
4182 buffer.read(cx).file().map(|f| f.path().clone())
4183 });
4184 })?;
4185
4186 // If the project transaction's edits are all contained within this editor, then
4187 // avoid opening a new editor to display them.
4188
4189 if let Some((buffer, transaction)) = entries.first() {
4190 if entries.len() == 1 {
4191 let excerpt = this.update(&mut cx, |editor, cx| {
4192 editor
4193 .buffer()
4194 .read(cx)
4195 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4196 })?;
4197 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4198 if excerpted_buffer == *buffer {
4199 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4200 let excerpt_range = excerpt_range.to_offset(buffer);
4201 buffer
4202 .edited_ranges_for_transaction::<usize>(transaction)
4203 .all(|range| {
4204 excerpt_range.start <= range.start
4205 && excerpt_range.end >= range.end
4206 })
4207 })?;
4208
4209 if all_edits_within_excerpt {
4210 return Ok(());
4211 }
4212 }
4213 }
4214 }
4215 } else {
4216 return Ok(());
4217 }
4218
4219 let mut ranges_to_highlight = Vec::new();
4220 let excerpt_buffer = cx.new_model(|cx| {
4221 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4222 for (buffer_handle, transaction) in &entries {
4223 let buffer = buffer_handle.read(cx);
4224 ranges_to_highlight.extend(
4225 multibuffer.push_excerpts_with_context_lines(
4226 buffer_handle.clone(),
4227 buffer
4228 .edited_ranges_for_transaction::<usize>(transaction)
4229 .collect(),
4230 DEFAULT_MULTIBUFFER_CONTEXT,
4231 cx,
4232 ),
4233 );
4234 }
4235 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4236 multibuffer
4237 })?;
4238
4239 workspace.update(&mut cx, |workspace, cx| {
4240 let project = workspace.project().clone();
4241 let editor =
4242 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4243 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4244 editor.update(cx, |editor, cx| {
4245 editor.highlight_background::<Self>(
4246 &ranges_to_highlight,
4247 |theme| theme.editor_highlighted_line_background,
4248 cx,
4249 );
4250 });
4251 })?;
4252
4253 Ok(())
4254 }
4255
4256 pub fn clear_code_action_providers(&mut self) {
4257 self.code_action_providers.clear();
4258 self.available_code_actions.take();
4259 }
4260
4261 pub fn push_code_action_provider(
4262 &mut self,
4263 provider: Rc<dyn CodeActionProvider>,
4264 cx: &mut ViewContext<Self>,
4265 ) {
4266 self.code_action_providers.push(provider);
4267 self.refresh_code_actions(cx);
4268 }
4269
4270 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4271 let buffer = self.buffer.read(cx);
4272 let newest_selection = self.selections.newest_anchor().clone();
4273 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4274 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4275 if start_buffer != end_buffer {
4276 return None;
4277 }
4278
4279 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4280 cx.background_executor()
4281 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4282 .await;
4283
4284 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4285 let providers = this.code_action_providers.clone();
4286 let tasks = this
4287 .code_action_providers
4288 .iter()
4289 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4290 .collect::<Vec<_>>();
4291 (providers, tasks)
4292 })?;
4293
4294 let mut actions = Vec::new();
4295 for (provider, provider_actions) in
4296 providers.into_iter().zip(future::join_all(tasks).await)
4297 {
4298 if let Some(provider_actions) = provider_actions.log_err() {
4299 actions.extend(provider_actions.into_iter().map(|action| {
4300 AvailableCodeAction {
4301 excerpt_id: newest_selection.start.excerpt_id,
4302 action,
4303 provider: provider.clone(),
4304 }
4305 }));
4306 }
4307 }
4308
4309 this.update(&mut cx, |this, cx| {
4310 this.available_code_actions = if actions.is_empty() {
4311 None
4312 } else {
4313 Some((
4314 Location {
4315 buffer: start_buffer,
4316 range: start..end,
4317 },
4318 actions.into(),
4319 ))
4320 };
4321 cx.notify();
4322 })
4323 }));
4324 None
4325 }
4326
4327 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4328 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4329 self.show_git_blame_inline = false;
4330
4331 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4332 cx.background_executor().timer(delay).await;
4333
4334 this.update(&mut cx, |this, cx| {
4335 this.show_git_blame_inline = true;
4336 cx.notify();
4337 })
4338 .log_err();
4339 }));
4340 }
4341 }
4342
4343 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4344 if self.pending_rename.is_some() {
4345 return None;
4346 }
4347
4348 let provider = self.semantics_provider.clone()?;
4349 let buffer = self.buffer.read(cx);
4350 let newest_selection = self.selections.newest_anchor().clone();
4351 let cursor_position = newest_selection.head();
4352 let (cursor_buffer, cursor_buffer_position) =
4353 buffer.text_anchor_for_position(cursor_position, cx)?;
4354 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4355 if cursor_buffer != tail_buffer {
4356 return None;
4357 }
4358 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4359 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4360 cx.background_executor()
4361 .timer(Duration::from_millis(debounce))
4362 .await;
4363
4364 let highlights = if let Some(highlights) = cx
4365 .update(|cx| {
4366 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4367 })
4368 .ok()
4369 .flatten()
4370 {
4371 highlights.await.log_err()
4372 } else {
4373 None
4374 };
4375
4376 if let Some(highlights) = highlights {
4377 this.update(&mut cx, |this, cx| {
4378 if this.pending_rename.is_some() {
4379 return;
4380 }
4381
4382 let buffer_id = cursor_position.buffer_id;
4383 let buffer = this.buffer.read(cx);
4384 if !buffer
4385 .text_anchor_for_position(cursor_position, cx)
4386 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4387 {
4388 return;
4389 }
4390
4391 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4392 let mut write_ranges = Vec::new();
4393 let mut read_ranges = Vec::new();
4394 for highlight in highlights {
4395 for (excerpt_id, excerpt_range) in
4396 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4397 {
4398 let start = highlight
4399 .range
4400 .start
4401 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4402 let end = highlight
4403 .range
4404 .end
4405 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4406 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4407 continue;
4408 }
4409
4410 let range = Anchor {
4411 buffer_id,
4412 excerpt_id,
4413 text_anchor: start,
4414 }..Anchor {
4415 buffer_id,
4416 excerpt_id,
4417 text_anchor: end,
4418 };
4419 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4420 write_ranges.push(range);
4421 } else {
4422 read_ranges.push(range);
4423 }
4424 }
4425 }
4426
4427 this.highlight_background::<DocumentHighlightRead>(
4428 &read_ranges,
4429 |theme| theme.editor_document_highlight_read_background,
4430 cx,
4431 );
4432 this.highlight_background::<DocumentHighlightWrite>(
4433 &write_ranges,
4434 |theme| theme.editor_document_highlight_write_background,
4435 cx,
4436 );
4437 cx.notify();
4438 })
4439 .log_err();
4440 }
4441 }));
4442 None
4443 }
4444
4445 pub fn refresh_inline_completion(
4446 &mut self,
4447 debounce: bool,
4448 user_requested: bool,
4449 cx: &mut ViewContext<Self>,
4450 ) -> Option<()> {
4451 let provider = self.inline_completion_provider()?;
4452 let cursor = self.selections.newest_anchor().head();
4453 let (buffer, cursor_buffer_position) =
4454 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4455
4456 if !user_requested
4457 && (!self.enable_inline_completions
4458 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4459 || !self.is_focused(cx))
4460 {
4461 self.discard_inline_completion(false, cx);
4462 return None;
4463 }
4464
4465 self.update_visible_inline_completion(cx);
4466 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4467 Some(())
4468 }
4469
4470 fn cycle_inline_completion(
4471 &mut self,
4472 direction: Direction,
4473 cx: &mut ViewContext<Self>,
4474 ) -> Option<()> {
4475 let provider = self.inline_completion_provider()?;
4476 let cursor = self.selections.newest_anchor().head();
4477 let (buffer, cursor_buffer_position) =
4478 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4479 if !self.enable_inline_completions
4480 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4481 {
4482 return None;
4483 }
4484
4485 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4486 self.update_visible_inline_completion(cx);
4487
4488 Some(())
4489 }
4490
4491 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4492 if !self.has_active_inline_completion() {
4493 self.refresh_inline_completion(false, true, cx);
4494 return;
4495 }
4496
4497 self.update_visible_inline_completion(cx);
4498 }
4499
4500 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4501 self.show_cursor_names(cx);
4502 }
4503
4504 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4505 self.show_cursor_names = true;
4506 cx.notify();
4507 cx.spawn(|this, mut cx| async move {
4508 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4509 this.update(&mut cx, |this, cx| {
4510 this.show_cursor_names = false;
4511 cx.notify()
4512 })
4513 .ok()
4514 })
4515 .detach();
4516 }
4517
4518 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4519 if self.has_active_inline_completion() {
4520 self.cycle_inline_completion(Direction::Next, cx);
4521 } else {
4522 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4523 if is_copilot_disabled {
4524 cx.propagate();
4525 }
4526 }
4527 }
4528
4529 pub fn previous_inline_completion(
4530 &mut self,
4531 _: &PreviousInlineCompletion,
4532 cx: &mut ViewContext<Self>,
4533 ) {
4534 if self.has_active_inline_completion() {
4535 self.cycle_inline_completion(Direction::Prev, cx);
4536 } else {
4537 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4538 if is_copilot_disabled {
4539 cx.propagate();
4540 }
4541 }
4542 }
4543
4544 pub fn accept_inline_completion(
4545 &mut self,
4546 _: &AcceptInlineCompletion,
4547 cx: &mut ViewContext<Self>,
4548 ) {
4549 self.hide_context_menu(cx);
4550
4551 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4552 return;
4553 };
4554
4555 self.report_inline_completion_event(true, cx);
4556
4557 match &active_inline_completion.completion {
4558 InlineCompletion::Move(position) => {
4559 let position = *position;
4560 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4561 selections.select_anchor_ranges([position..position]);
4562 });
4563 }
4564 InlineCompletion::Edit(edits) => {
4565 if let Some(provider) = self.inline_completion_provider() {
4566 provider.accept(cx);
4567 }
4568
4569 let snapshot = self.buffer.read(cx).snapshot(cx);
4570 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4571
4572 self.buffer.update(cx, |buffer, cx| {
4573 buffer.edit(edits.iter().cloned(), None, cx)
4574 });
4575
4576 self.change_selections(None, cx, |s| {
4577 s.select_anchor_ranges([last_edit_end..last_edit_end])
4578 });
4579
4580 self.update_visible_inline_completion(cx);
4581 if self.active_inline_completion.is_none() {
4582 self.refresh_inline_completion(true, true, cx);
4583 }
4584
4585 cx.notify();
4586 }
4587 }
4588 }
4589
4590 pub fn accept_partial_inline_completion(
4591 &mut self,
4592 _: &AcceptPartialInlineCompletion,
4593 cx: &mut ViewContext<Self>,
4594 ) {
4595 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4596 return;
4597 };
4598 if self.selections.count() != 1 {
4599 return;
4600 }
4601
4602 self.report_inline_completion_event(true, cx);
4603
4604 match &active_inline_completion.completion {
4605 InlineCompletion::Move(position) => {
4606 let position = *position;
4607 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4608 selections.select_anchor_ranges([position..position]);
4609 });
4610 }
4611 InlineCompletion::Edit(edits) => {
4612 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4613 let text = edits[0].1.as_str();
4614 let mut partial_completion = text
4615 .chars()
4616 .by_ref()
4617 .take_while(|c| c.is_alphabetic())
4618 .collect::<String>();
4619 if partial_completion.is_empty() {
4620 partial_completion = text
4621 .chars()
4622 .by_ref()
4623 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4624 .collect::<String>();
4625 }
4626
4627 cx.emit(EditorEvent::InputHandled {
4628 utf16_range_to_replace: None,
4629 text: partial_completion.clone().into(),
4630 });
4631
4632 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4633
4634 self.refresh_inline_completion(true, true, cx);
4635 cx.notify();
4636 }
4637 }
4638 }
4639 }
4640
4641 fn discard_inline_completion(
4642 &mut self,
4643 should_report_inline_completion_event: bool,
4644 cx: &mut ViewContext<Self>,
4645 ) -> bool {
4646 if should_report_inline_completion_event {
4647 self.report_inline_completion_event(false, cx);
4648 }
4649
4650 if let Some(provider) = self.inline_completion_provider() {
4651 provider.discard(cx);
4652 }
4653
4654 self.take_active_inline_completion(cx).is_some()
4655 }
4656
4657 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4658 let Some(provider) = self.inline_completion_provider() else {
4659 return;
4660 };
4661 let Some(project) = self.project.as_ref() else {
4662 return;
4663 };
4664 let Some((_, buffer, _)) = self
4665 .buffer
4666 .read(cx)
4667 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4668 else {
4669 return;
4670 };
4671
4672 let project = project.read(cx);
4673 let extension = buffer
4674 .read(cx)
4675 .file()
4676 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4677 project.client().telemetry().report_inline_completion_event(
4678 provider.name().into(),
4679 accepted,
4680 extension,
4681 );
4682 }
4683
4684 pub fn has_active_inline_completion(&self) -> bool {
4685 self.active_inline_completion.is_some()
4686 }
4687
4688 fn take_active_inline_completion(
4689 &mut self,
4690 cx: &mut ViewContext<Self>,
4691 ) -> Option<InlineCompletion> {
4692 let active_inline_completion = self.active_inline_completion.take()?;
4693 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4694 self.clear_highlights::<InlineCompletionHighlight>(cx);
4695 Some(active_inline_completion.completion)
4696 }
4697
4698 fn hide_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4699 if let Some(active_inline_completion) = self.active_inline_completion.as_ref() {
4700 self.splice_inlays(
4701 active_inline_completion.inlay_ids.clone(),
4702 Default::default(),
4703 cx,
4704 );
4705 self.clear_highlights::<InlineCompletionHighlight>(cx);
4706 }
4707 }
4708
4709 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4710 let selection = self.selections.newest_anchor();
4711 let cursor = selection.head();
4712 let multibuffer = self.buffer.read(cx).snapshot(cx);
4713 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4714 let excerpt_id = cursor.excerpt_id;
4715
4716 if !offset_selection.is_empty()
4717 || self
4718 .active_inline_completion
4719 .as_ref()
4720 .map_or(false, |completion| {
4721 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4722 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4723 !invalidation_range.contains(&offset_selection.head())
4724 })
4725 {
4726 self.discard_inline_completion(false, cx);
4727 return None;
4728 }
4729
4730 self.take_active_inline_completion(cx);
4731 let provider = self.inline_completion_provider()?;
4732
4733 let (buffer, cursor_buffer_position) =
4734 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4735
4736 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4737 let edits = completion
4738 .edits
4739 .into_iter()
4740 .flat_map(|(range, new_text)| {
4741 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4742 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4743 Some((start..end, new_text))
4744 })
4745 .collect::<Vec<_>>();
4746 if edits.is_empty() {
4747 return None;
4748 }
4749
4750 let first_edit_start = edits.first().unwrap().0.start;
4751 let edit_start_row = first_edit_start
4752 .to_point(&multibuffer)
4753 .row
4754 .saturating_sub(2);
4755
4756 let last_edit_end = edits.last().unwrap().0.end;
4757 let edit_end_row = cmp::min(
4758 multibuffer.max_point().row,
4759 last_edit_end.to_point(&multibuffer).row + 2,
4760 );
4761
4762 let cursor_row = cursor.to_point(&multibuffer).row;
4763
4764 let mut inlay_ids = Vec::new();
4765 let invalidation_row_range;
4766 let completion;
4767 if cursor_row < edit_start_row {
4768 invalidation_row_range = cursor_row..edit_end_row;
4769 completion = InlineCompletion::Move(first_edit_start);
4770 } else if cursor_row > edit_end_row {
4771 invalidation_row_range = edit_start_row..cursor_row;
4772 completion = InlineCompletion::Move(first_edit_start);
4773 } else {
4774 if !self.has_active_completions_menu() {
4775 if edits
4776 .iter()
4777 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4778 {
4779 let mut inlays = Vec::new();
4780 for (range, new_text) in &edits {
4781 let inlay = Inlay::inline_completion(
4782 post_inc(&mut self.next_inlay_id),
4783 range.start,
4784 new_text.as_str(),
4785 );
4786 inlay_ids.push(inlay.id);
4787 inlays.push(inlay);
4788 }
4789
4790 self.splice_inlays(vec![], inlays, cx);
4791 } else {
4792 let background_color = cx.theme().status().deleted_background;
4793 self.highlight_text::<InlineCompletionHighlight>(
4794 edits.iter().map(|(range, _)| range.clone()).collect(),
4795 HighlightStyle {
4796 background_color: Some(background_color),
4797 ..Default::default()
4798 },
4799 cx,
4800 );
4801 }
4802 }
4803
4804 invalidation_row_range = edit_start_row..edit_end_row;
4805 completion = InlineCompletion::Edit(edits);
4806 };
4807
4808 let invalidation_range = multibuffer
4809 .anchor_before(Point::new(invalidation_row_range.start, 0))
4810 ..multibuffer.anchor_after(Point::new(
4811 invalidation_row_range.end,
4812 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4813 ));
4814
4815 self.active_inline_completion = Some(InlineCompletionState {
4816 inlay_ids,
4817 completion,
4818 invalidation_range,
4819 });
4820
4821 if self.has_active_completions_menu() {
4822 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4823 match self.context_menu.borrow_mut().as_mut() {
4824 Some(CodeContextMenu::Completions(menu)) => {
4825 menu.show_inline_completion_hint(hint);
4826 }
4827 _ => {}
4828 }
4829 }
4830 }
4831
4832 cx.notify();
4833
4834 Some(())
4835 }
4836
4837 fn inline_completion_menu_hint(
4838 &mut self,
4839 cx: &mut ViewContext<Self>,
4840 ) -> Option<InlineCompletionMenuHint> {
4841 if self.has_active_inline_completion() {
4842 let provider_name = self.inline_completion_provider()?.display_name();
4843 let editor_snapshot = self.snapshot(cx);
4844
4845 let text = match &self.active_inline_completion.as_ref()?.completion {
4846 InlineCompletion::Edit(edits) => {
4847 inline_completion_edit_text(&editor_snapshot, edits, cx)
4848 }
4849 InlineCompletion::Move(target) => {
4850 let target_point =
4851 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4852 let target_line = target_point.row + 1;
4853 InlineCompletionText::Move(
4854 format!("Jump to edit in line {}", target_line).into(),
4855 )
4856 }
4857 };
4858
4859 Some(InlineCompletionMenuHint {
4860 provider_name,
4861 text,
4862 })
4863 } else {
4864 None
4865 }
4866 }
4867
4868 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4869 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4870 }
4871
4872 fn render_code_actions_indicator(
4873 &self,
4874 _style: &EditorStyle,
4875 row: DisplayRow,
4876 is_active: bool,
4877 cx: &mut ViewContext<Self>,
4878 ) -> Option<IconButton> {
4879 if self.available_code_actions.is_some() {
4880 Some(
4881 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4882 .shape(ui::IconButtonShape::Square)
4883 .icon_size(IconSize::XSmall)
4884 .icon_color(Color::Muted)
4885 .toggle_state(is_active)
4886 .tooltip({
4887 let focus_handle = self.focus_handle.clone();
4888 move |cx| {
4889 Tooltip::for_action_in(
4890 "Toggle Code Actions",
4891 &ToggleCodeActions {
4892 deployed_from_indicator: None,
4893 },
4894 &focus_handle,
4895 cx,
4896 )
4897 }
4898 })
4899 .on_click(cx.listener(move |editor, _e, cx| {
4900 editor.focus(cx);
4901 editor.toggle_code_actions(
4902 &ToggleCodeActions {
4903 deployed_from_indicator: Some(row),
4904 },
4905 cx,
4906 );
4907 })),
4908 )
4909 } else {
4910 None
4911 }
4912 }
4913
4914 fn clear_tasks(&mut self) {
4915 self.tasks.clear()
4916 }
4917
4918 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4919 if self.tasks.insert(key, value).is_some() {
4920 // This case should hopefully be rare, but just in case...
4921 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4922 }
4923 }
4924
4925 fn build_tasks_context(
4926 project: &Model<Project>,
4927 buffer: &Model<Buffer>,
4928 buffer_row: u32,
4929 tasks: &Arc<RunnableTasks>,
4930 cx: &mut ViewContext<Self>,
4931 ) -> Task<Option<task::TaskContext>> {
4932 let position = Point::new(buffer_row, tasks.column);
4933 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4934 let location = Location {
4935 buffer: buffer.clone(),
4936 range: range_start..range_start,
4937 };
4938 // Fill in the environmental variables from the tree-sitter captures
4939 let mut captured_task_variables = TaskVariables::default();
4940 for (capture_name, value) in tasks.extra_variables.clone() {
4941 captured_task_variables.insert(
4942 task::VariableName::Custom(capture_name.into()),
4943 value.clone(),
4944 );
4945 }
4946 project.update(cx, |project, cx| {
4947 project.task_store().update(cx, |task_store, cx| {
4948 task_store.task_context_for_location(captured_task_variables, location, cx)
4949 })
4950 })
4951 }
4952
4953 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4954 let Some((workspace, _)) = self.workspace.clone() else {
4955 return;
4956 };
4957 let Some(project) = self.project.clone() else {
4958 return;
4959 };
4960
4961 // Try to find a closest, enclosing node using tree-sitter that has a
4962 // task
4963 let Some((buffer, buffer_row, tasks)) = self
4964 .find_enclosing_node_task(cx)
4965 // Or find the task that's closest in row-distance.
4966 .or_else(|| self.find_closest_task(cx))
4967 else {
4968 return;
4969 };
4970
4971 let reveal_strategy = action.reveal;
4972 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4973 cx.spawn(|_, mut cx| async move {
4974 let context = task_context.await?;
4975 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
4976
4977 let resolved = resolved_task.resolved.as_mut()?;
4978 resolved.reveal = reveal_strategy;
4979
4980 workspace
4981 .update(&mut cx, |workspace, cx| {
4982 workspace::tasks::schedule_resolved_task(
4983 workspace,
4984 task_source_kind,
4985 resolved_task,
4986 false,
4987 cx,
4988 );
4989 })
4990 .ok()
4991 })
4992 .detach();
4993 }
4994
4995 fn find_closest_task(
4996 &mut self,
4997 cx: &mut ViewContext<Self>,
4998 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
4999 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5000
5001 let ((buffer_id, row), tasks) = self
5002 .tasks
5003 .iter()
5004 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5005
5006 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5007 let tasks = Arc::new(tasks.to_owned());
5008 Some((buffer, *row, tasks))
5009 }
5010
5011 fn find_enclosing_node_task(
5012 &mut self,
5013 cx: &mut ViewContext<Self>,
5014 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5015 let snapshot = self.buffer.read(cx).snapshot(cx);
5016 let offset = self.selections.newest::<usize>(cx).head();
5017 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5018 let buffer_id = excerpt.buffer().remote_id();
5019
5020 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5021 let mut cursor = layer.node().walk();
5022
5023 while cursor.goto_first_child_for_byte(offset).is_some() {
5024 if cursor.node().end_byte() == offset {
5025 cursor.goto_next_sibling();
5026 }
5027 }
5028
5029 // Ascend to the smallest ancestor that contains the range and has a task.
5030 loop {
5031 let node = cursor.node();
5032 let node_range = node.byte_range();
5033 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5034
5035 // Check if this node contains our offset
5036 if node_range.start <= offset && node_range.end >= offset {
5037 // If it contains offset, check for task
5038 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5039 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5040 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5041 }
5042 }
5043
5044 if !cursor.goto_parent() {
5045 break;
5046 }
5047 }
5048 None
5049 }
5050
5051 fn render_run_indicator(
5052 &self,
5053 _style: &EditorStyle,
5054 is_active: bool,
5055 row: DisplayRow,
5056 cx: &mut ViewContext<Self>,
5057 ) -> IconButton {
5058 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5059 .shape(ui::IconButtonShape::Square)
5060 .icon_size(IconSize::XSmall)
5061 .icon_color(Color::Muted)
5062 .toggle_state(is_active)
5063 .on_click(cx.listener(move |editor, _e, cx| {
5064 editor.focus(cx);
5065 editor.toggle_code_actions(
5066 &ToggleCodeActions {
5067 deployed_from_indicator: Some(row),
5068 },
5069 cx,
5070 );
5071 }))
5072 }
5073
5074 #[cfg(feature = "test-support")]
5075 pub fn context_menu_visible(&self) -> bool {
5076 self.context_menu
5077 .borrow()
5078 .as_ref()
5079 .map_or(false, |menu| menu.visible())
5080 }
5081
5082 #[cfg(feature = "test-support")]
5083 pub fn context_menu_contains_inline_completion(&self) -> bool {
5084 self.context_menu
5085 .borrow()
5086 .as_ref()
5087 .map_or(false, |menu| match menu {
5088 CodeContextMenu::Completions(menu) => menu.entries.first().map_or(false, |entry| {
5089 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5090 }),
5091 CodeContextMenu::CodeActions(_) => false,
5092 })
5093 }
5094
5095 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5096 self.context_menu
5097 .borrow()
5098 .as_ref()
5099 .map(|menu| menu.origin(cursor_position))
5100 }
5101
5102 fn render_context_menu(
5103 &self,
5104 style: &EditorStyle,
5105 max_height_in_lines: u32,
5106 cx: &mut ViewContext<Editor>,
5107 ) -> Option<AnyElement> {
5108 self.context_menu.borrow().as_ref().and_then(|menu| {
5109 if menu.visible() {
5110 Some(menu.render(style, max_height_in_lines, cx))
5111 } else {
5112 None
5113 }
5114 })
5115 }
5116
5117 fn render_context_menu_aside(
5118 &self,
5119 style: &EditorStyle,
5120 max_height: Pixels,
5121 cx: &mut ViewContext<Editor>,
5122 ) -> Option<AnyElement> {
5123 self.context_menu.borrow().as_ref().and_then(|menu| {
5124 if menu.visible() {
5125 menu.render_aside(
5126 style,
5127 max_height,
5128 self.workspace.as_ref().map(|(w, _)| w.clone()),
5129 cx,
5130 )
5131 } else {
5132 None
5133 }
5134 })
5135 }
5136
5137 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5138 cx.notify();
5139 self.completion_tasks.clear();
5140 self.context_menu.borrow_mut().take()
5141 }
5142
5143 fn show_snippet_choices(
5144 &mut self,
5145 choices: &Vec<String>,
5146 selection: Range<Anchor>,
5147 cx: &mut ViewContext<Self>,
5148 ) {
5149 if selection.start.buffer_id.is_none() {
5150 return;
5151 }
5152 let buffer_id = selection.start.buffer_id.unwrap();
5153 let buffer = self.buffer().read(cx).buffer(buffer_id);
5154 let id = post_inc(&mut self.next_completion_id);
5155
5156 if let Some(buffer) = buffer {
5157 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5158 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5159 ));
5160 }
5161 }
5162
5163 pub fn insert_snippet(
5164 &mut self,
5165 insertion_ranges: &[Range<usize>],
5166 snippet: Snippet,
5167 cx: &mut ViewContext<Self>,
5168 ) -> Result<()> {
5169 struct Tabstop<T> {
5170 is_end_tabstop: bool,
5171 ranges: Vec<Range<T>>,
5172 choices: Option<Vec<String>>,
5173 }
5174
5175 let tabstops = self.buffer.update(cx, |buffer, cx| {
5176 let snippet_text: Arc<str> = snippet.text.clone().into();
5177 buffer.edit(
5178 insertion_ranges
5179 .iter()
5180 .cloned()
5181 .map(|range| (range, snippet_text.clone())),
5182 Some(AutoindentMode::EachLine),
5183 cx,
5184 );
5185
5186 let snapshot = &*buffer.read(cx);
5187 let snippet = &snippet;
5188 snippet
5189 .tabstops
5190 .iter()
5191 .map(|tabstop| {
5192 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5193 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5194 });
5195 let mut tabstop_ranges = tabstop
5196 .ranges
5197 .iter()
5198 .flat_map(|tabstop_range| {
5199 let mut delta = 0_isize;
5200 insertion_ranges.iter().map(move |insertion_range| {
5201 let insertion_start = insertion_range.start as isize + delta;
5202 delta +=
5203 snippet.text.len() as isize - insertion_range.len() as isize;
5204
5205 let start = ((insertion_start + tabstop_range.start) as usize)
5206 .min(snapshot.len());
5207 let end = ((insertion_start + tabstop_range.end) as usize)
5208 .min(snapshot.len());
5209 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5210 })
5211 })
5212 .collect::<Vec<_>>();
5213 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5214
5215 Tabstop {
5216 is_end_tabstop,
5217 ranges: tabstop_ranges,
5218 choices: tabstop.choices.clone(),
5219 }
5220 })
5221 .collect::<Vec<_>>()
5222 });
5223 if let Some(tabstop) = tabstops.first() {
5224 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5225 s.select_ranges(tabstop.ranges.iter().cloned());
5226 });
5227
5228 if let Some(choices) = &tabstop.choices {
5229 if let Some(selection) = tabstop.ranges.first() {
5230 self.show_snippet_choices(choices, selection.clone(), cx)
5231 }
5232 }
5233
5234 // If we're already at the last tabstop and it's at the end of the snippet,
5235 // we're done, we don't need to keep the state around.
5236 if !tabstop.is_end_tabstop {
5237 let choices = tabstops
5238 .iter()
5239 .map(|tabstop| tabstop.choices.clone())
5240 .collect();
5241
5242 let ranges = tabstops
5243 .into_iter()
5244 .map(|tabstop| tabstop.ranges)
5245 .collect::<Vec<_>>();
5246
5247 self.snippet_stack.push(SnippetState {
5248 active_index: 0,
5249 ranges,
5250 choices,
5251 });
5252 }
5253
5254 // Check whether the just-entered snippet ends with an auto-closable bracket.
5255 if self.autoclose_regions.is_empty() {
5256 let snapshot = self.buffer.read(cx).snapshot(cx);
5257 for selection in &mut self.selections.all::<Point>(cx) {
5258 let selection_head = selection.head();
5259 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5260 continue;
5261 };
5262
5263 let mut bracket_pair = None;
5264 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5265 let prev_chars = snapshot
5266 .reversed_chars_at(selection_head)
5267 .collect::<String>();
5268 for (pair, enabled) in scope.brackets() {
5269 if enabled
5270 && pair.close
5271 && prev_chars.starts_with(pair.start.as_str())
5272 && next_chars.starts_with(pair.end.as_str())
5273 {
5274 bracket_pair = Some(pair.clone());
5275 break;
5276 }
5277 }
5278 if let Some(pair) = bracket_pair {
5279 let start = snapshot.anchor_after(selection_head);
5280 let end = snapshot.anchor_after(selection_head);
5281 self.autoclose_regions.push(AutocloseRegion {
5282 selection_id: selection.id,
5283 range: start..end,
5284 pair,
5285 });
5286 }
5287 }
5288 }
5289 }
5290 Ok(())
5291 }
5292
5293 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5294 self.move_to_snippet_tabstop(Bias::Right, cx)
5295 }
5296
5297 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5298 self.move_to_snippet_tabstop(Bias::Left, cx)
5299 }
5300
5301 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5302 if let Some(mut snippet) = self.snippet_stack.pop() {
5303 match bias {
5304 Bias::Left => {
5305 if snippet.active_index > 0 {
5306 snippet.active_index -= 1;
5307 } else {
5308 self.snippet_stack.push(snippet);
5309 return false;
5310 }
5311 }
5312 Bias::Right => {
5313 if snippet.active_index + 1 < snippet.ranges.len() {
5314 snippet.active_index += 1;
5315 } else {
5316 self.snippet_stack.push(snippet);
5317 return false;
5318 }
5319 }
5320 }
5321 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5323 s.select_anchor_ranges(current_ranges.iter().cloned())
5324 });
5325
5326 if let Some(choices) = &snippet.choices[snippet.active_index] {
5327 if let Some(selection) = current_ranges.first() {
5328 self.show_snippet_choices(&choices, selection.clone(), cx);
5329 }
5330 }
5331
5332 // If snippet state is not at the last tabstop, push it back on the stack
5333 if snippet.active_index + 1 < snippet.ranges.len() {
5334 self.snippet_stack.push(snippet);
5335 }
5336 return true;
5337 }
5338 }
5339
5340 false
5341 }
5342
5343 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5344 self.transact(cx, |this, cx| {
5345 this.select_all(&SelectAll, cx);
5346 this.insert("", cx);
5347 });
5348 }
5349
5350 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5351 self.transact(cx, |this, cx| {
5352 this.select_autoclose_pair(cx);
5353 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5354 if !this.linked_edit_ranges.is_empty() {
5355 let selections = this.selections.all::<MultiBufferPoint>(cx);
5356 let snapshot = this.buffer.read(cx).snapshot(cx);
5357
5358 for selection in selections.iter() {
5359 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5360 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5361 if selection_start.buffer_id != selection_end.buffer_id {
5362 continue;
5363 }
5364 if let Some(ranges) =
5365 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5366 {
5367 for (buffer, entries) in ranges {
5368 linked_ranges.entry(buffer).or_default().extend(entries);
5369 }
5370 }
5371 }
5372 }
5373
5374 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5375 if !this.selections.line_mode {
5376 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5377 for selection in &mut selections {
5378 if selection.is_empty() {
5379 let old_head = selection.head();
5380 let mut new_head =
5381 movement::left(&display_map, old_head.to_display_point(&display_map))
5382 .to_point(&display_map);
5383 if let Some((buffer, line_buffer_range)) = display_map
5384 .buffer_snapshot
5385 .buffer_line_for_row(MultiBufferRow(old_head.row))
5386 {
5387 let indent_size =
5388 buffer.indent_size_for_line(line_buffer_range.start.row);
5389 let indent_len = match indent_size.kind {
5390 IndentKind::Space => {
5391 buffer.settings_at(line_buffer_range.start, cx).tab_size
5392 }
5393 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5394 };
5395 if old_head.column <= indent_size.len && old_head.column > 0 {
5396 let indent_len = indent_len.get();
5397 new_head = cmp::min(
5398 new_head,
5399 MultiBufferPoint::new(
5400 old_head.row,
5401 ((old_head.column - 1) / indent_len) * indent_len,
5402 ),
5403 );
5404 }
5405 }
5406
5407 selection.set_head(new_head, SelectionGoal::None);
5408 }
5409 }
5410 }
5411
5412 this.signature_help_state.set_backspace_pressed(true);
5413 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5414 this.insert("", cx);
5415 let empty_str: Arc<str> = Arc::from("");
5416 for (buffer, edits) in linked_ranges {
5417 let snapshot = buffer.read(cx).snapshot();
5418 use text::ToPoint as TP;
5419
5420 let edits = edits
5421 .into_iter()
5422 .map(|range| {
5423 let end_point = TP::to_point(&range.end, &snapshot);
5424 let mut start_point = TP::to_point(&range.start, &snapshot);
5425
5426 if end_point == start_point {
5427 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5428 .saturating_sub(1);
5429 start_point =
5430 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5431 };
5432
5433 (start_point..end_point, empty_str.clone())
5434 })
5435 .sorted_by_key(|(range, _)| range.start)
5436 .collect::<Vec<_>>();
5437 buffer.update(cx, |this, cx| {
5438 this.edit(edits, None, cx);
5439 })
5440 }
5441 this.refresh_inline_completion(true, false, cx);
5442 linked_editing_ranges::refresh_linked_ranges(this, cx);
5443 });
5444 }
5445
5446 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5447 self.transact(cx, |this, cx| {
5448 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5449 let line_mode = s.line_mode;
5450 s.move_with(|map, selection| {
5451 if selection.is_empty() && !line_mode {
5452 let cursor = movement::right(map, selection.head());
5453 selection.end = cursor;
5454 selection.reversed = true;
5455 selection.goal = SelectionGoal::None;
5456 }
5457 })
5458 });
5459 this.insert("", cx);
5460 this.refresh_inline_completion(true, false, cx);
5461 });
5462 }
5463
5464 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5465 if self.move_to_prev_snippet_tabstop(cx) {
5466 return;
5467 }
5468
5469 self.outdent(&Outdent, cx);
5470 }
5471
5472 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5473 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5474 return;
5475 }
5476
5477 let mut selections = self.selections.all_adjusted(cx);
5478 let buffer = self.buffer.read(cx);
5479 let snapshot = buffer.snapshot(cx);
5480 let rows_iter = selections.iter().map(|s| s.head().row);
5481 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5482
5483 let mut edits = Vec::new();
5484 let mut prev_edited_row = 0;
5485 let mut row_delta = 0;
5486 for selection in &mut selections {
5487 if selection.start.row != prev_edited_row {
5488 row_delta = 0;
5489 }
5490 prev_edited_row = selection.end.row;
5491
5492 // If the selection is non-empty, then increase the indentation of the selected lines.
5493 if !selection.is_empty() {
5494 row_delta =
5495 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5496 continue;
5497 }
5498
5499 // If the selection is empty and the cursor is in the leading whitespace before the
5500 // suggested indentation, then auto-indent the line.
5501 let cursor = selection.head();
5502 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5503 if let Some(suggested_indent) =
5504 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5505 {
5506 if cursor.column < suggested_indent.len
5507 && cursor.column <= current_indent.len
5508 && current_indent.len <= suggested_indent.len
5509 {
5510 selection.start = Point::new(cursor.row, suggested_indent.len);
5511 selection.end = selection.start;
5512 if row_delta == 0 {
5513 edits.extend(Buffer::edit_for_indent_size_adjustment(
5514 cursor.row,
5515 current_indent,
5516 suggested_indent,
5517 ));
5518 row_delta = suggested_indent.len - current_indent.len;
5519 }
5520 continue;
5521 }
5522 }
5523
5524 // Otherwise, insert a hard or soft tab.
5525 let settings = buffer.settings_at(cursor, cx);
5526 let tab_size = if settings.hard_tabs {
5527 IndentSize::tab()
5528 } else {
5529 let tab_size = settings.tab_size.get();
5530 let char_column = snapshot
5531 .text_for_range(Point::new(cursor.row, 0)..cursor)
5532 .flat_map(str::chars)
5533 .count()
5534 + row_delta as usize;
5535 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5536 IndentSize::spaces(chars_to_next_tab_stop)
5537 };
5538 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5539 selection.end = selection.start;
5540 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5541 row_delta += tab_size.len;
5542 }
5543
5544 self.transact(cx, |this, cx| {
5545 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5546 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5547 this.refresh_inline_completion(true, false, cx);
5548 });
5549 }
5550
5551 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5552 if self.read_only(cx) {
5553 return;
5554 }
5555 let mut selections = self.selections.all::<Point>(cx);
5556 let mut prev_edited_row = 0;
5557 let mut row_delta = 0;
5558 let mut edits = Vec::new();
5559 let buffer = self.buffer.read(cx);
5560 let snapshot = buffer.snapshot(cx);
5561 for selection in &mut selections {
5562 if selection.start.row != prev_edited_row {
5563 row_delta = 0;
5564 }
5565 prev_edited_row = selection.end.row;
5566
5567 row_delta =
5568 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5569 }
5570
5571 self.transact(cx, |this, cx| {
5572 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5573 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5574 });
5575 }
5576
5577 fn indent_selection(
5578 buffer: &MultiBuffer,
5579 snapshot: &MultiBufferSnapshot,
5580 selection: &mut Selection<Point>,
5581 edits: &mut Vec<(Range<Point>, String)>,
5582 delta_for_start_row: u32,
5583 cx: &AppContext,
5584 ) -> u32 {
5585 let settings = buffer.settings_at(selection.start, cx);
5586 let tab_size = settings.tab_size.get();
5587 let indent_kind = if settings.hard_tabs {
5588 IndentKind::Tab
5589 } else {
5590 IndentKind::Space
5591 };
5592 let mut start_row = selection.start.row;
5593 let mut end_row = selection.end.row + 1;
5594
5595 // If a selection ends at the beginning of a line, don't indent
5596 // that last line.
5597 if selection.end.column == 0 && selection.end.row > selection.start.row {
5598 end_row -= 1;
5599 }
5600
5601 // Avoid re-indenting a row that has already been indented by a
5602 // previous selection, but still update this selection's column
5603 // to reflect that indentation.
5604 if delta_for_start_row > 0 {
5605 start_row += 1;
5606 selection.start.column += delta_for_start_row;
5607 if selection.end.row == selection.start.row {
5608 selection.end.column += delta_for_start_row;
5609 }
5610 }
5611
5612 let mut delta_for_end_row = 0;
5613 let has_multiple_rows = start_row + 1 != end_row;
5614 for row in start_row..end_row {
5615 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5616 let indent_delta = match (current_indent.kind, indent_kind) {
5617 (IndentKind::Space, IndentKind::Space) => {
5618 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5619 IndentSize::spaces(columns_to_next_tab_stop)
5620 }
5621 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5622 (_, IndentKind::Tab) => IndentSize::tab(),
5623 };
5624
5625 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5626 0
5627 } else {
5628 selection.start.column
5629 };
5630 let row_start = Point::new(row, start);
5631 edits.push((
5632 row_start..row_start,
5633 indent_delta.chars().collect::<String>(),
5634 ));
5635
5636 // Update this selection's endpoints to reflect the indentation.
5637 if row == selection.start.row {
5638 selection.start.column += indent_delta.len;
5639 }
5640 if row == selection.end.row {
5641 selection.end.column += indent_delta.len;
5642 delta_for_end_row = indent_delta.len;
5643 }
5644 }
5645
5646 if selection.start.row == selection.end.row {
5647 delta_for_start_row + delta_for_end_row
5648 } else {
5649 delta_for_end_row
5650 }
5651 }
5652
5653 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5654 if self.read_only(cx) {
5655 return;
5656 }
5657 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5658 let selections = self.selections.all::<Point>(cx);
5659 let mut deletion_ranges = Vec::new();
5660 let mut last_outdent = None;
5661 {
5662 let buffer = self.buffer.read(cx);
5663 let snapshot = buffer.snapshot(cx);
5664 for selection in &selections {
5665 let settings = buffer.settings_at(selection.start, cx);
5666 let tab_size = settings.tab_size.get();
5667 let mut rows = selection.spanned_rows(false, &display_map);
5668
5669 // Avoid re-outdenting a row that has already been outdented by a
5670 // previous selection.
5671 if let Some(last_row) = last_outdent {
5672 if last_row == rows.start {
5673 rows.start = rows.start.next_row();
5674 }
5675 }
5676 let has_multiple_rows = rows.len() > 1;
5677 for row in rows.iter_rows() {
5678 let indent_size = snapshot.indent_size_for_line(row);
5679 if indent_size.len > 0 {
5680 let deletion_len = match indent_size.kind {
5681 IndentKind::Space => {
5682 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5683 if columns_to_prev_tab_stop == 0 {
5684 tab_size
5685 } else {
5686 columns_to_prev_tab_stop
5687 }
5688 }
5689 IndentKind::Tab => 1,
5690 };
5691 let start = if has_multiple_rows
5692 || deletion_len > selection.start.column
5693 || indent_size.len < selection.start.column
5694 {
5695 0
5696 } else {
5697 selection.start.column - deletion_len
5698 };
5699 deletion_ranges.push(
5700 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5701 );
5702 last_outdent = Some(row);
5703 }
5704 }
5705 }
5706 }
5707
5708 self.transact(cx, |this, cx| {
5709 this.buffer.update(cx, |buffer, cx| {
5710 let empty_str: Arc<str> = Arc::default();
5711 buffer.edit(
5712 deletion_ranges
5713 .into_iter()
5714 .map(|range| (range, empty_str.clone())),
5715 None,
5716 cx,
5717 );
5718 });
5719 let selections = this.selections.all::<usize>(cx);
5720 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5721 });
5722 }
5723
5724 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5725 if self.read_only(cx) {
5726 return;
5727 }
5728 let selections = self
5729 .selections
5730 .all::<usize>(cx)
5731 .into_iter()
5732 .map(|s| s.range());
5733
5734 self.transact(cx, |this, cx| {
5735 this.buffer.update(cx, |buffer, cx| {
5736 buffer.autoindent_ranges(selections, cx);
5737 });
5738 let selections = this.selections.all::<usize>(cx);
5739 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5740 });
5741 }
5742
5743 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5744 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5745 let selections = self.selections.all::<Point>(cx);
5746
5747 let mut new_cursors = Vec::new();
5748 let mut edit_ranges = Vec::new();
5749 let mut selections = selections.iter().peekable();
5750 while let Some(selection) = selections.next() {
5751 let mut rows = selection.spanned_rows(false, &display_map);
5752 let goal_display_column = selection.head().to_display_point(&display_map).column();
5753
5754 // Accumulate contiguous regions of rows that we want to delete.
5755 while let Some(next_selection) = selections.peek() {
5756 let next_rows = next_selection.spanned_rows(false, &display_map);
5757 if next_rows.start <= rows.end {
5758 rows.end = next_rows.end;
5759 selections.next().unwrap();
5760 } else {
5761 break;
5762 }
5763 }
5764
5765 let buffer = &display_map.buffer_snapshot;
5766 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5767 let edit_end;
5768 let cursor_buffer_row;
5769 if buffer.max_point().row >= rows.end.0 {
5770 // If there's a line after the range, delete the \n from the end of the row range
5771 // and position the cursor on the next line.
5772 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5773 cursor_buffer_row = rows.end;
5774 } else {
5775 // If there isn't a line after the range, delete the \n from the line before the
5776 // start of the row range and position the cursor there.
5777 edit_start = edit_start.saturating_sub(1);
5778 edit_end = buffer.len();
5779 cursor_buffer_row = rows.start.previous_row();
5780 }
5781
5782 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5783 *cursor.column_mut() =
5784 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5785
5786 new_cursors.push((
5787 selection.id,
5788 buffer.anchor_after(cursor.to_point(&display_map)),
5789 ));
5790 edit_ranges.push(edit_start..edit_end);
5791 }
5792
5793 self.transact(cx, |this, cx| {
5794 let buffer = this.buffer.update(cx, |buffer, cx| {
5795 let empty_str: Arc<str> = Arc::default();
5796 buffer.edit(
5797 edit_ranges
5798 .into_iter()
5799 .map(|range| (range, empty_str.clone())),
5800 None,
5801 cx,
5802 );
5803 buffer.snapshot(cx)
5804 });
5805 let new_selections = new_cursors
5806 .into_iter()
5807 .map(|(id, cursor)| {
5808 let cursor = cursor.to_point(&buffer);
5809 Selection {
5810 id,
5811 start: cursor,
5812 end: cursor,
5813 reversed: false,
5814 goal: SelectionGoal::None,
5815 }
5816 })
5817 .collect();
5818
5819 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5820 s.select(new_selections);
5821 });
5822 });
5823 }
5824
5825 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5826 if self.read_only(cx) {
5827 return;
5828 }
5829 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5830 for selection in self.selections.all::<Point>(cx) {
5831 let start = MultiBufferRow(selection.start.row);
5832 // Treat single line selections as if they include the next line. Otherwise this action
5833 // would do nothing for single line selections individual cursors.
5834 let end = if selection.start.row == selection.end.row {
5835 MultiBufferRow(selection.start.row + 1)
5836 } else {
5837 MultiBufferRow(selection.end.row)
5838 };
5839
5840 if let Some(last_row_range) = row_ranges.last_mut() {
5841 if start <= last_row_range.end {
5842 last_row_range.end = end;
5843 continue;
5844 }
5845 }
5846 row_ranges.push(start..end);
5847 }
5848
5849 let snapshot = self.buffer.read(cx).snapshot(cx);
5850 let mut cursor_positions = Vec::new();
5851 for row_range in &row_ranges {
5852 let anchor = snapshot.anchor_before(Point::new(
5853 row_range.end.previous_row().0,
5854 snapshot.line_len(row_range.end.previous_row()),
5855 ));
5856 cursor_positions.push(anchor..anchor);
5857 }
5858
5859 self.transact(cx, |this, cx| {
5860 for row_range in row_ranges.into_iter().rev() {
5861 for row in row_range.iter_rows().rev() {
5862 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5863 let next_line_row = row.next_row();
5864 let indent = snapshot.indent_size_for_line(next_line_row);
5865 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5866
5867 let replace = if snapshot.line_len(next_line_row) > indent.len {
5868 " "
5869 } else {
5870 ""
5871 };
5872
5873 this.buffer.update(cx, |buffer, cx| {
5874 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5875 });
5876 }
5877 }
5878
5879 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5880 s.select_anchor_ranges(cursor_positions)
5881 });
5882 });
5883 }
5884
5885 pub fn sort_lines_case_sensitive(
5886 &mut self,
5887 _: &SortLinesCaseSensitive,
5888 cx: &mut ViewContext<Self>,
5889 ) {
5890 self.manipulate_lines(cx, |lines| lines.sort())
5891 }
5892
5893 pub fn sort_lines_case_insensitive(
5894 &mut self,
5895 _: &SortLinesCaseInsensitive,
5896 cx: &mut ViewContext<Self>,
5897 ) {
5898 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5899 }
5900
5901 pub fn unique_lines_case_insensitive(
5902 &mut self,
5903 _: &UniqueLinesCaseInsensitive,
5904 cx: &mut ViewContext<Self>,
5905 ) {
5906 self.manipulate_lines(cx, |lines| {
5907 let mut seen = HashSet::default();
5908 lines.retain(|line| seen.insert(line.to_lowercase()));
5909 })
5910 }
5911
5912 pub fn unique_lines_case_sensitive(
5913 &mut self,
5914 _: &UniqueLinesCaseSensitive,
5915 cx: &mut ViewContext<Self>,
5916 ) {
5917 self.manipulate_lines(cx, |lines| {
5918 let mut seen = HashSet::default();
5919 lines.retain(|line| seen.insert(*line));
5920 })
5921 }
5922
5923 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5924 let mut revert_changes = HashMap::default();
5925 let snapshot = self.snapshot(cx);
5926 for hunk in hunks_for_ranges(
5927 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5928 &snapshot,
5929 ) {
5930 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5931 }
5932 if !revert_changes.is_empty() {
5933 self.transact(cx, |editor, cx| {
5934 editor.revert(revert_changes, cx);
5935 });
5936 }
5937 }
5938
5939 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5940 let Some(project) = self.project.clone() else {
5941 return;
5942 };
5943 self.reload(project, cx).detach_and_notify_err(cx);
5944 }
5945
5946 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5947 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5948 if !revert_changes.is_empty() {
5949 self.transact(cx, |editor, cx| {
5950 editor.revert(revert_changes, cx);
5951 });
5952 }
5953 }
5954
5955 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5956 let snapshot = self.buffer.read(cx).read(cx);
5957 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5958 drop(snapshot);
5959 let mut revert_changes = HashMap::default();
5960 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5961 if !revert_changes.is_empty() {
5962 self.revert(revert_changes, cx)
5963 }
5964 }
5965 }
5966
5967 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5968 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5969 let project_path = buffer.read(cx).project_path(cx)?;
5970 let project = self.project.as_ref()?.read(cx);
5971 let entry = project.entry_for_path(&project_path, cx)?;
5972 let parent = match &entry.canonical_path {
5973 Some(canonical_path) => canonical_path.to_path_buf(),
5974 None => project.absolute_path(&project_path, cx)?,
5975 }
5976 .parent()?
5977 .to_path_buf();
5978 Some(parent)
5979 }) {
5980 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5981 }
5982 }
5983
5984 fn gather_revert_changes(
5985 &mut self,
5986 selections: &[Selection<Point>],
5987 cx: &mut ViewContext<'_, Editor>,
5988 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5989 let mut revert_changes = HashMap::default();
5990 let snapshot = self.snapshot(cx);
5991 for hunk in hunks_for_selections(&snapshot, selections) {
5992 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5993 }
5994 revert_changes
5995 }
5996
5997 pub fn prepare_revert_change(
5998 &mut self,
5999 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6000 hunk: &MultiBufferDiffHunk,
6001 cx: &AppContext,
6002 ) -> Option<()> {
6003 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6004 let buffer = buffer.read(cx);
6005 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6006 let original_text = change_set
6007 .read(cx)
6008 .base_text
6009 .as_ref()?
6010 .read(cx)
6011 .as_rope()
6012 .slice(hunk.diff_base_byte_range.clone());
6013 let buffer_snapshot = buffer.snapshot();
6014 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6015 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6016 probe
6017 .0
6018 .start
6019 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6020 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6021 }) {
6022 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6023 Some(())
6024 } else {
6025 None
6026 }
6027 }
6028
6029 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6030 self.manipulate_lines(cx, |lines| lines.reverse())
6031 }
6032
6033 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6034 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6035 }
6036
6037 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6038 where
6039 Fn: FnMut(&mut Vec<&str>),
6040 {
6041 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6042 let buffer = self.buffer.read(cx).snapshot(cx);
6043
6044 let mut edits = Vec::new();
6045
6046 let selections = self.selections.all::<Point>(cx);
6047 let mut selections = selections.iter().peekable();
6048 let mut contiguous_row_selections = Vec::new();
6049 let mut new_selections = Vec::new();
6050 let mut added_lines = 0;
6051 let mut removed_lines = 0;
6052
6053 while let Some(selection) = selections.next() {
6054 let (start_row, end_row) = consume_contiguous_rows(
6055 &mut contiguous_row_selections,
6056 selection,
6057 &display_map,
6058 &mut selections,
6059 );
6060
6061 let start_point = Point::new(start_row.0, 0);
6062 let end_point = Point::new(
6063 end_row.previous_row().0,
6064 buffer.line_len(end_row.previous_row()),
6065 );
6066 let text = buffer
6067 .text_for_range(start_point..end_point)
6068 .collect::<String>();
6069
6070 let mut lines = text.split('\n').collect_vec();
6071
6072 let lines_before = lines.len();
6073 callback(&mut lines);
6074 let lines_after = lines.len();
6075
6076 edits.push((start_point..end_point, lines.join("\n")));
6077
6078 // Selections must change based on added and removed line count
6079 let start_row =
6080 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6081 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6082 new_selections.push(Selection {
6083 id: selection.id,
6084 start: start_row,
6085 end: end_row,
6086 goal: SelectionGoal::None,
6087 reversed: selection.reversed,
6088 });
6089
6090 if lines_after > lines_before {
6091 added_lines += lines_after - lines_before;
6092 } else if lines_before > lines_after {
6093 removed_lines += lines_before - lines_after;
6094 }
6095 }
6096
6097 self.transact(cx, |this, cx| {
6098 let buffer = this.buffer.update(cx, |buffer, cx| {
6099 buffer.edit(edits, None, cx);
6100 buffer.snapshot(cx)
6101 });
6102
6103 // Recalculate offsets on newly edited buffer
6104 let new_selections = new_selections
6105 .iter()
6106 .map(|s| {
6107 let start_point = Point::new(s.start.0, 0);
6108 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6109 Selection {
6110 id: s.id,
6111 start: buffer.point_to_offset(start_point),
6112 end: buffer.point_to_offset(end_point),
6113 goal: s.goal,
6114 reversed: s.reversed,
6115 }
6116 })
6117 .collect();
6118
6119 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6120 s.select(new_selections);
6121 });
6122
6123 this.request_autoscroll(Autoscroll::fit(), cx);
6124 });
6125 }
6126
6127 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6128 self.manipulate_text(cx, |text| text.to_uppercase())
6129 }
6130
6131 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6132 self.manipulate_text(cx, |text| text.to_lowercase())
6133 }
6134
6135 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6136 self.manipulate_text(cx, |text| {
6137 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6138 // https://github.com/rutrum/convert-case/issues/16
6139 text.split('\n')
6140 .map(|line| line.to_case(Case::Title))
6141 .join("\n")
6142 })
6143 }
6144
6145 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6146 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6147 }
6148
6149 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6150 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6151 }
6152
6153 pub fn convert_to_upper_camel_case(
6154 &mut self,
6155 _: &ConvertToUpperCamelCase,
6156 cx: &mut ViewContext<Self>,
6157 ) {
6158 self.manipulate_text(cx, |text| {
6159 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6160 // https://github.com/rutrum/convert-case/issues/16
6161 text.split('\n')
6162 .map(|line| line.to_case(Case::UpperCamel))
6163 .join("\n")
6164 })
6165 }
6166
6167 pub fn convert_to_lower_camel_case(
6168 &mut self,
6169 _: &ConvertToLowerCamelCase,
6170 cx: &mut ViewContext<Self>,
6171 ) {
6172 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6173 }
6174
6175 pub fn convert_to_opposite_case(
6176 &mut self,
6177 _: &ConvertToOppositeCase,
6178 cx: &mut ViewContext<Self>,
6179 ) {
6180 self.manipulate_text(cx, |text| {
6181 text.chars()
6182 .fold(String::with_capacity(text.len()), |mut t, c| {
6183 if c.is_uppercase() {
6184 t.extend(c.to_lowercase());
6185 } else {
6186 t.extend(c.to_uppercase());
6187 }
6188 t
6189 })
6190 })
6191 }
6192
6193 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6194 where
6195 Fn: FnMut(&str) -> String,
6196 {
6197 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6198 let buffer = self.buffer.read(cx).snapshot(cx);
6199
6200 let mut new_selections = Vec::new();
6201 let mut edits = Vec::new();
6202 let mut selection_adjustment = 0i32;
6203
6204 for selection in self.selections.all::<usize>(cx) {
6205 let selection_is_empty = selection.is_empty();
6206
6207 let (start, end) = if selection_is_empty {
6208 let word_range = movement::surrounding_word(
6209 &display_map,
6210 selection.start.to_display_point(&display_map),
6211 );
6212 let start = word_range.start.to_offset(&display_map, Bias::Left);
6213 let end = word_range.end.to_offset(&display_map, Bias::Left);
6214 (start, end)
6215 } else {
6216 (selection.start, selection.end)
6217 };
6218
6219 let text = buffer.text_for_range(start..end).collect::<String>();
6220 let old_length = text.len() as i32;
6221 let text = callback(&text);
6222
6223 new_selections.push(Selection {
6224 start: (start as i32 - selection_adjustment) as usize,
6225 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6226 goal: SelectionGoal::None,
6227 ..selection
6228 });
6229
6230 selection_adjustment += old_length - text.len() as i32;
6231
6232 edits.push((start..end, text));
6233 }
6234
6235 self.transact(cx, |this, cx| {
6236 this.buffer.update(cx, |buffer, cx| {
6237 buffer.edit(edits, None, cx);
6238 });
6239
6240 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6241 s.select(new_selections);
6242 });
6243
6244 this.request_autoscroll(Autoscroll::fit(), cx);
6245 });
6246 }
6247
6248 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6249 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6250 let buffer = &display_map.buffer_snapshot;
6251 let selections = self.selections.all::<Point>(cx);
6252
6253 let mut edits = Vec::new();
6254 let mut selections_iter = selections.iter().peekable();
6255 while let Some(selection) = selections_iter.next() {
6256 let mut rows = selection.spanned_rows(false, &display_map);
6257 // duplicate line-wise
6258 if whole_lines || selection.start == selection.end {
6259 // Avoid duplicating the same lines twice.
6260 while let Some(next_selection) = selections_iter.peek() {
6261 let next_rows = next_selection.spanned_rows(false, &display_map);
6262 if next_rows.start < rows.end {
6263 rows.end = next_rows.end;
6264 selections_iter.next().unwrap();
6265 } else {
6266 break;
6267 }
6268 }
6269
6270 // Copy the text from the selected row region and splice it either at the start
6271 // or end of the region.
6272 let start = Point::new(rows.start.0, 0);
6273 let end = Point::new(
6274 rows.end.previous_row().0,
6275 buffer.line_len(rows.end.previous_row()),
6276 );
6277 let text = buffer
6278 .text_for_range(start..end)
6279 .chain(Some("\n"))
6280 .collect::<String>();
6281 let insert_location = if upwards {
6282 Point::new(rows.end.0, 0)
6283 } else {
6284 start
6285 };
6286 edits.push((insert_location..insert_location, text));
6287 } else {
6288 // duplicate character-wise
6289 let start = selection.start;
6290 let end = selection.end;
6291 let text = buffer.text_for_range(start..end).collect::<String>();
6292 edits.push((selection.end..selection.end, text));
6293 }
6294 }
6295
6296 self.transact(cx, |this, cx| {
6297 this.buffer.update(cx, |buffer, cx| {
6298 buffer.edit(edits, None, cx);
6299 });
6300
6301 this.request_autoscroll(Autoscroll::fit(), cx);
6302 });
6303 }
6304
6305 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6306 self.duplicate(true, true, cx);
6307 }
6308
6309 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6310 self.duplicate(false, true, cx);
6311 }
6312
6313 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6314 self.duplicate(false, false, cx);
6315 }
6316
6317 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6318 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6319 let buffer = self.buffer.read(cx).snapshot(cx);
6320
6321 let mut edits = Vec::new();
6322 let mut unfold_ranges = Vec::new();
6323 let mut refold_creases = Vec::new();
6324
6325 let selections = self.selections.all::<Point>(cx);
6326 let mut selections = selections.iter().peekable();
6327 let mut contiguous_row_selections = Vec::new();
6328 let mut new_selections = Vec::new();
6329
6330 while let Some(selection) = selections.next() {
6331 // Find all the selections that span a contiguous row range
6332 let (start_row, end_row) = consume_contiguous_rows(
6333 &mut contiguous_row_selections,
6334 selection,
6335 &display_map,
6336 &mut selections,
6337 );
6338
6339 // Move the text spanned by the row range to be before the line preceding the row range
6340 if start_row.0 > 0 {
6341 let range_to_move = Point::new(
6342 start_row.previous_row().0,
6343 buffer.line_len(start_row.previous_row()),
6344 )
6345 ..Point::new(
6346 end_row.previous_row().0,
6347 buffer.line_len(end_row.previous_row()),
6348 );
6349 let insertion_point = display_map
6350 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6351 .0;
6352
6353 // Don't move lines across excerpts
6354 if buffer
6355 .excerpt_boundaries_in_range((
6356 Bound::Excluded(insertion_point),
6357 Bound::Included(range_to_move.end),
6358 ))
6359 .next()
6360 .is_none()
6361 {
6362 let text = buffer
6363 .text_for_range(range_to_move.clone())
6364 .flat_map(|s| s.chars())
6365 .skip(1)
6366 .chain(['\n'])
6367 .collect::<String>();
6368
6369 edits.push((
6370 buffer.anchor_after(range_to_move.start)
6371 ..buffer.anchor_before(range_to_move.end),
6372 String::new(),
6373 ));
6374 let insertion_anchor = buffer.anchor_after(insertion_point);
6375 edits.push((insertion_anchor..insertion_anchor, text));
6376
6377 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6378
6379 // Move selections up
6380 new_selections.extend(contiguous_row_selections.drain(..).map(
6381 |mut selection| {
6382 selection.start.row -= row_delta;
6383 selection.end.row -= row_delta;
6384 selection
6385 },
6386 ));
6387
6388 // Move folds up
6389 unfold_ranges.push(range_to_move.clone());
6390 for fold in display_map.folds_in_range(
6391 buffer.anchor_before(range_to_move.start)
6392 ..buffer.anchor_after(range_to_move.end),
6393 ) {
6394 let mut start = fold.range.start.to_point(&buffer);
6395 let mut end = fold.range.end.to_point(&buffer);
6396 start.row -= row_delta;
6397 end.row -= row_delta;
6398 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6399 }
6400 }
6401 }
6402
6403 // If we didn't move line(s), preserve the existing selections
6404 new_selections.append(&mut contiguous_row_selections);
6405 }
6406
6407 self.transact(cx, |this, cx| {
6408 this.unfold_ranges(&unfold_ranges, true, true, cx);
6409 this.buffer.update(cx, |buffer, cx| {
6410 for (range, text) in edits {
6411 buffer.edit([(range, text)], None, cx);
6412 }
6413 });
6414 this.fold_creases(refold_creases, true, cx);
6415 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6416 s.select(new_selections);
6417 })
6418 });
6419 }
6420
6421 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6422 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6423 let buffer = self.buffer.read(cx).snapshot(cx);
6424
6425 let mut edits = Vec::new();
6426 let mut unfold_ranges = Vec::new();
6427 let mut refold_creases = Vec::new();
6428
6429 let selections = self.selections.all::<Point>(cx);
6430 let mut selections = selections.iter().peekable();
6431 let mut contiguous_row_selections = Vec::new();
6432 let mut new_selections = Vec::new();
6433
6434 while let Some(selection) = selections.next() {
6435 // Find all the selections that span a contiguous row range
6436 let (start_row, end_row) = consume_contiguous_rows(
6437 &mut contiguous_row_selections,
6438 selection,
6439 &display_map,
6440 &mut selections,
6441 );
6442
6443 // Move the text spanned by the row range to be after the last line of the row range
6444 if end_row.0 <= buffer.max_point().row {
6445 let range_to_move =
6446 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6447 let insertion_point = display_map
6448 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6449 .0;
6450
6451 // Don't move lines across excerpt boundaries
6452 if buffer
6453 .excerpt_boundaries_in_range((
6454 Bound::Excluded(range_to_move.start),
6455 Bound::Included(insertion_point),
6456 ))
6457 .next()
6458 .is_none()
6459 {
6460 let mut text = String::from("\n");
6461 text.extend(buffer.text_for_range(range_to_move.clone()));
6462 text.pop(); // Drop trailing newline
6463 edits.push((
6464 buffer.anchor_after(range_to_move.start)
6465 ..buffer.anchor_before(range_to_move.end),
6466 String::new(),
6467 ));
6468 let insertion_anchor = buffer.anchor_after(insertion_point);
6469 edits.push((insertion_anchor..insertion_anchor, text));
6470
6471 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6472
6473 // Move selections down
6474 new_selections.extend(contiguous_row_selections.drain(..).map(
6475 |mut selection| {
6476 selection.start.row += row_delta;
6477 selection.end.row += row_delta;
6478 selection
6479 },
6480 ));
6481
6482 // Move folds down
6483 unfold_ranges.push(range_to_move.clone());
6484 for fold in display_map.folds_in_range(
6485 buffer.anchor_before(range_to_move.start)
6486 ..buffer.anchor_after(range_to_move.end),
6487 ) {
6488 let mut start = fold.range.start.to_point(&buffer);
6489 let mut end = fold.range.end.to_point(&buffer);
6490 start.row += row_delta;
6491 end.row += row_delta;
6492 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6493 }
6494 }
6495 }
6496
6497 // If we didn't move line(s), preserve the existing selections
6498 new_selections.append(&mut contiguous_row_selections);
6499 }
6500
6501 self.transact(cx, |this, cx| {
6502 this.unfold_ranges(&unfold_ranges, true, true, cx);
6503 this.buffer.update(cx, |buffer, cx| {
6504 for (range, text) in edits {
6505 buffer.edit([(range, text)], None, cx);
6506 }
6507 });
6508 this.fold_creases(refold_creases, true, cx);
6509 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6510 });
6511 }
6512
6513 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6514 let text_layout_details = &self.text_layout_details(cx);
6515 self.transact(cx, |this, cx| {
6516 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6517 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6518 let line_mode = s.line_mode;
6519 s.move_with(|display_map, selection| {
6520 if !selection.is_empty() || line_mode {
6521 return;
6522 }
6523
6524 let mut head = selection.head();
6525 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6526 if head.column() == display_map.line_len(head.row()) {
6527 transpose_offset = display_map
6528 .buffer_snapshot
6529 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6530 }
6531
6532 if transpose_offset == 0 {
6533 return;
6534 }
6535
6536 *head.column_mut() += 1;
6537 head = display_map.clip_point(head, Bias::Right);
6538 let goal = SelectionGoal::HorizontalPosition(
6539 display_map
6540 .x_for_display_point(head, text_layout_details)
6541 .into(),
6542 );
6543 selection.collapse_to(head, goal);
6544
6545 let transpose_start = display_map
6546 .buffer_snapshot
6547 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6548 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6549 let transpose_end = display_map
6550 .buffer_snapshot
6551 .clip_offset(transpose_offset + 1, Bias::Right);
6552 if let Some(ch) =
6553 display_map.buffer_snapshot.chars_at(transpose_start).next()
6554 {
6555 edits.push((transpose_start..transpose_offset, String::new()));
6556 edits.push((transpose_end..transpose_end, ch.to_string()));
6557 }
6558 }
6559 });
6560 edits
6561 });
6562 this.buffer
6563 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6564 let selections = this.selections.all::<usize>(cx);
6565 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6566 s.select(selections);
6567 });
6568 });
6569 }
6570
6571 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6572 self.rewrap_impl(IsVimMode::No, cx)
6573 }
6574
6575 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6576 let buffer = self.buffer.read(cx).snapshot(cx);
6577 let selections = self.selections.all::<Point>(cx);
6578 let mut selections = selections.iter().peekable();
6579
6580 let mut edits = Vec::new();
6581 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6582
6583 while let Some(selection) = selections.next() {
6584 let mut start_row = selection.start.row;
6585 let mut end_row = selection.end.row;
6586
6587 // Skip selections that overlap with a range that has already been rewrapped.
6588 let selection_range = start_row..end_row;
6589 if rewrapped_row_ranges
6590 .iter()
6591 .any(|range| range.overlaps(&selection_range))
6592 {
6593 continue;
6594 }
6595
6596 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6597
6598 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6599 match language_scope.language_name().0.as_ref() {
6600 "Markdown" | "Plain Text" => {
6601 should_rewrap = true;
6602 }
6603 _ => {}
6604 }
6605 }
6606
6607 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6608
6609 // Since not all lines in the selection may be at the same indent
6610 // level, choose the indent size that is the most common between all
6611 // of the lines.
6612 //
6613 // If there is a tie, we use the deepest indent.
6614 let (indent_size, indent_end) = {
6615 let mut indent_size_occurrences = HashMap::default();
6616 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6617
6618 for row in start_row..=end_row {
6619 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6620 rows_by_indent_size.entry(indent).or_default().push(row);
6621 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6622 }
6623
6624 let indent_size = indent_size_occurrences
6625 .into_iter()
6626 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6627 .map(|(indent, _)| indent)
6628 .unwrap_or_default();
6629 let row = rows_by_indent_size[&indent_size][0];
6630 let indent_end = Point::new(row, indent_size.len);
6631
6632 (indent_size, indent_end)
6633 };
6634
6635 let mut line_prefix = indent_size.chars().collect::<String>();
6636
6637 if let Some(comment_prefix) =
6638 buffer
6639 .language_scope_at(selection.head())
6640 .and_then(|language| {
6641 language
6642 .line_comment_prefixes()
6643 .iter()
6644 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6645 .cloned()
6646 })
6647 {
6648 line_prefix.push_str(&comment_prefix);
6649 should_rewrap = true;
6650 }
6651
6652 if !should_rewrap {
6653 continue;
6654 }
6655
6656 if selection.is_empty() {
6657 'expand_upwards: while start_row > 0 {
6658 let prev_row = start_row - 1;
6659 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6660 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6661 {
6662 start_row = prev_row;
6663 } else {
6664 break 'expand_upwards;
6665 }
6666 }
6667
6668 'expand_downwards: while end_row < buffer.max_point().row {
6669 let next_row = end_row + 1;
6670 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6671 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6672 {
6673 end_row = next_row;
6674 } else {
6675 break 'expand_downwards;
6676 }
6677 }
6678 }
6679
6680 let start = Point::new(start_row, 0);
6681 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6682 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6683 let Some(lines_without_prefixes) = selection_text
6684 .lines()
6685 .map(|line| {
6686 line.strip_prefix(&line_prefix)
6687 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6688 .ok_or_else(|| {
6689 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6690 })
6691 })
6692 .collect::<Result<Vec<_>, _>>()
6693 .log_err()
6694 else {
6695 continue;
6696 };
6697
6698 let wrap_column = buffer
6699 .settings_at(Point::new(start_row, 0), cx)
6700 .preferred_line_length as usize;
6701 let wrapped_text = wrap_with_prefix(
6702 line_prefix,
6703 lines_without_prefixes.join(" "),
6704 wrap_column,
6705 tab_size,
6706 );
6707
6708 // TODO: should always use char-based diff while still supporting cursor behavior that
6709 // matches vim.
6710 let diff = match is_vim_mode {
6711 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6712 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6713 };
6714 let mut offset = start.to_offset(&buffer);
6715 let mut moved_since_edit = true;
6716
6717 for change in diff.iter_all_changes() {
6718 let value = change.value();
6719 match change.tag() {
6720 ChangeTag::Equal => {
6721 offset += value.len();
6722 moved_since_edit = true;
6723 }
6724 ChangeTag::Delete => {
6725 let start = buffer.anchor_after(offset);
6726 let end = buffer.anchor_before(offset + value.len());
6727
6728 if moved_since_edit {
6729 edits.push((start..end, String::new()));
6730 } else {
6731 edits.last_mut().unwrap().0.end = end;
6732 }
6733
6734 offset += value.len();
6735 moved_since_edit = false;
6736 }
6737 ChangeTag::Insert => {
6738 if moved_since_edit {
6739 let anchor = buffer.anchor_after(offset);
6740 edits.push((anchor..anchor, value.to_string()));
6741 } else {
6742 edits.last_mut().unwrap().1.push_str(value);
6743 }
6744
6745 moved_since_edit = false;
6746 }
6747 }
6748 }
6749
6750 rewrapped_row_ranges.push(start_row..=end_row);
6751 }
6752
6753 self.buffer
6754 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6755 }
6756
6757 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6758 let mut text = String::new();
6759 let buffer = self.buffer.read(cx).snapshot(cx);
6760 let mut selections = self.selections.all::<Point>(cx);
6761 let mut clipboard_selections = Vec::with_capacity(selections.len());
6762 {
6763 let max_point = buffer.max_point();
6764 let mut is_first = true;
6765 for selection in &mut selections {
6766 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6767 if is_entire_line {
6768 selection.start = Point::new(selection.start.row, 0);
6769 if !selection.is_empty() && selection.end.column == 0 {
6770 selection.end = cmp::min(max_point, selection.end);
6771 } else {
6772 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6773 }
6774 selection.goal = SelectionGoal::None;
6775 }
6776 if is_first {
6777 is_first = false;
6778 } else {
6779 text += "\n";
6780 }
6781 let mut len = 0;
6782 for chunk in buffer.text_for_range(selection.start..selection.end) {
6783 text.push_str(chunk);
6784 len += chunk.len();
6785 }
6786 clipboard_selections.push(ClipboardSelection {
6787 len,
6788 is_entire_line,
6789 first_line_indent: buffer
6790 .indent_size_for_line(MultiBufferRow(selection.start.row))
6791 .len,
6792 });
6793 }
6794 }
6795
6796 self.transact(cx, |this, cx| {
6797 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6798 s.select(selections);
6799 });
6800 this.insert("", cx);
6801 });
6802 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6803 }
6804
6805 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6806 let item = self.cut_common(cx);
6807 cx.write_to_clipboard(item);
6808 }
6809
6810 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6811 self.change_selections(None, cx, |s| {
6812 s.move_with(|snapshot, sel| {
6813 if sel.is_empty() {
6814 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6815 }
6816 });
6817 });
6818 let item = self.cut_common(cx);
6819 cx.set_global(KillRing(item))
6820 }
6821
6822 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6823 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6824 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6825 (kill_ring.text().to_string(), kill_ring.metadata_json())
6826 } else {
6827 return;
6828 }
6829 } else {
6830 return;
6831 };
6832 self.do_paste(&text, metadata, false, cx);
6833 }
6834
6835 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6836 let selections = self.selections.all::<Point>(cx);
6837 let buffer = self.buffer.read(cx).read(cx);
6838 let mut text = String::new();
6839
6840 let mut clipboard_selections = Vec::with_capacity(selections.len());
6841 {
6842 let max_point = buffer.max_point();
6843 let mut is_first = true;
6844 for selection in selections.iter() {
6845 let mut start = selection.start;
6846 let mut end = selection.end;
6847 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6848 if is_entire_line {
6849 start = Point::new(start.row, 0);
6850 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6851 }
6852 if is_first {
6853 is_first = false;
6854 } else {
6855 text += "\n";
6856 }
6857 let mut len = 0;
6858 for chunk in buffer.text_for_range(start..end) {
6859 text.push_str(chunk);
6860 len += chunk.len();
6861 }
6862 clipboard_selections.push(ClipboardSelection {
6863 len,
6864 is_entire_line,
6865 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6866 });
6867 }
6868 }
6869
6870 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6871 text,
6872 clipboard_selections,
6873 ));
6874 }
6875
6876 pub fn do_paste(
6877 &mut self,
6878 text: &String,
6879 clipboard_selections: Option<Vec<ClipboardSelection>>,
6880 handle_entire_lines: bool,
6881 cx: &mut ViewContext<Self>,
6882 ) {
6883 if self.read_only(cx) {
6884 return;
6885 }
6886
6887 let clipboard_text = Cow::Borrowed(text);
6888
6889 self.transact(cx, |this, cx| {
6890 if let Some(mut clipboard_selections) = clipboard_selections {
6891 let old_selections = this.selections.all::<usize>(cx);
6892 let all_selections_were_entire_line =
6893 clipboard_selections.iter().all(|s| s.is_entire_line);
6894 let first_selection_indent_column =
6895 clipboard_selections.first().map(|s| s.first_line_indent);
6896 if clipboard_selections.len() != old_selections.len() {
6897 clipboard_selections.drain(..);
6898 }
6899 let cursor_offset = this.selections.last::<usize>(cx).head();
6900 let mut auto_indent_on_paste = true;
6901
6902 this.buffer.update(cx, |buffer, cx| {
6903 let snapshot = buffer.read(cx);
6904 auto_indent_on_paste =
6905 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6906
6907 let mut start_offset = 0;
6908 let mut edits = Vec::new();
6909 let mut original_indent_columns = Vec::new();
6910 for (ix, selection) in old_selections.iter().enumerate() {
6911 let to_insert;
6912 let entire_line;
6913 let original_indent_column;
6914 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6915 let end_offset = start_offset + clipboard_selection.len;
6916 to_insert = &clipboard_text[start_offset..end_offset];
6917 entire_line = clipboard_selection.is_entire_line;
6918 start_offset = end_offset + 1;
6919 original_indent_column = Some(clipboard_selection.first_line_indent);
6920 } else {
6921 to_insert = clipboard_text.as_str();
6922 entire_line = all_selections_were_entire_line;
6923 original_indent_column = first_selection_indent_column
6924 }
6925
6926 // If the corresponding selection was empty when this slice of the
6927 // clipboard text was written, then the entire line containing the
6928 // selection was copied. If this selection is also currently empty,
6929 // then paste the line before the current line of the buffer.
6930 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6931 let column = selection.start.to_point(&snapshot).column as usize;
6932 let line_start = selection.start - column;
6933 line_start..line_start
6934 } else {
6935 selection.range()
6936 };
6937
6938 edits.push((range, to_insert));
6939 original_indent_columns.extend(original_indent_column);
6940 }
6941 drop(snapshot);
6942
6943 buffer.edit(
6944 edits,
6945 if auto_indent_on_paste {
6946 Some(AutoindentMode::Block {
6947 original_indent_columns,
6948 })
6949 } else {
6950 None
6951 },
6952 cx,
6953 );
6954 });
6955
6956 let selections = this.selections.all::<usize>(cx);
6957 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6958 } else {
6959 this.insert(&clipboard_text, cx);
6960 }
6961 });
6962 }
6963
6964 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6965 if let Some(item) = cx.read_from_clipboard() {
6966 let entries = item.entries();
6967
6968 match entries.first() {
6969 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6970 // of all the pasted entries.
6971 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6972 .do_paste(
6973 clipboard_string.text(),
6974 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6975 true,
6976 cx,
6977 ),
6978 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6979 }
6980 }
6981 }
6982
6983 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6984 if self.read_only(cx) {
6985 return;
6986 }
6987
6988 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6989 if let Some((selections, _)) =
6990 self.selection_history.transaction(transaction_id).cloned()
6991 {
6992 self.change_selections(None, cx, |s| {
6993 s.select_anchors(selections.to_vec());
6994 });
6995 }
6996 self.request_autoscroll(Autoscroll::fit(), cx);
6997 self.unmark_text(cx);
6998 self.refresh_inline_completion(true, false, cx);
6999 cx.emit(EditorEvent::Edited { transaction_id });
7000 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7001 }
7002 }
7003
7004 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7005 if self.read_only(cx) {
7006 return;
7007 }
7008
7009 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7010 if let Some((_, Some(selections))) =
7011 self.selection_history.transaction(transaction_id).cloned()
7012 {
7013 self.change_selections(None, cx, |s| {
7014 s.select_anchors(selections.to_vec());
7015 });
7016 }
7017 self.request_autoscroll(Autoscroll::fit(), cx);
7018 self.unmark_text(cx);
7019 self.refresh_inline_completion(true, false, cx);
7020 cx.emit(EditorEvent::Edited { transaction_id });
7021 }
7022 }
7023
7024 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7025 self.buffer
7026 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7027 }
7028
7029 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7030 self.buffer
7031 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7032 }
7033
7034 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7035 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7036 let line_mode = s.line_mode;
7037 s.move_with(|map, selection| {
7038 let cursor = if selection.is_empty() && !line_mode {
7039 movement::left(map, selection.start)
7040 } else {
7041 selection.start
7042 };
7043 selection.collapse_to(cursor, SelectionGoal::None);
7044 });
7045 })
7046 }
7047
7048 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7049 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7050 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7051 })
7052 }
7053
7054 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7055 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7056 let line_mode = s.line_mode;
7057 s.move_with(|map, selection| {
7058 let cursor = if selection.is_empty() && !line_mode {
7059 movement::right(map, selection.end)
7060 } else {
7061 selection.end
7062 };
7063 selection.collapse_to(cursor, SelectionGoal::None)
7064 });
7065 })
7066 }
7067
7068 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7070 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7071 })
7072 }
7073
7074 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7075 if self.take_rename(true, cx).is_some() {
7076 return;
7077 }
7078
7079 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7080 cx.propagate();
7081 return;
7082 }
7083
7084 let text_layout_details = &self.text_layout_details(cx);
7085 let selection_count = self.selections.count();
7086 let first_selection = self.selections.first_anchor();
7087
7088 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7089 let line_mode = s.line_mode;
7090 s.move_with(|map, selection| {
7091 if !selection.is_empty() && !line_mode {
7092 selection.goal = SelectionGoal::None;
7093 }
7094 let (cursor, goal) = movement::up(
7095 map,
7096 selection.start,
7097 selection.goal,
7098 false,
7099 text_layout_details,
7100 );
7101 selection.collapse_to(cursor, goal);
7102 });
7103 });
7104
7105 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7106 {
7107 cx.propagate();
7108 }
7109 }
7110
7111 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7112 if self.take_rename(true, cx).is_some() {
7113 return;
7114 }
7115
7116 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7117 cx.propagate();
7118 return;
7119 }
7120
7121 let text_layout_details = &self.text_layout_details(cx);
7122
7123 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7124 let line_mode = s.line_mode;
7125 s.move_with(|map, selection| {
7126 if !selection.is_empty() && !line_mode {
7127 selection.goal = SelectionGoal::None;
7128 }
7129 let (cursor, goal) = movement::up_by_rows(
7130 map,
7131 selection.start,
7132 action.lines,
7133 selection.goal,
7134 false,
7135 text_layout_details,
7136 );
7137 selection.collapse_to(cursor, goal);
7138 });
7139 })
7140 }
7141
7142 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7143 if self.take_rename(true, cx).is_some() {
7144 return;
7145 }
7146
7147 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7148 cx.propagate();
7149 return;
7150 }
7151
7152 let text_layout_details = &self.text_layout_details(cx);
7153
7154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7155 let line_mode = s.line_mode;
7156 s.move_with(|map, selection| {
7157 if !selection.is_empty() && !line_mode {
7158 selection.goal = SelectionGoal::None;
7159 }
7160 let (cursor, goal) = movement::down_by_rows(
7161 map,
7162 selection.start,
7163 action.lines,
7164 selection.goal,
7165 false,
7166 text_layout_details,
7167 );
7168 selection.collapse_to(cursor, goal);
7169 });
7170 })
7171 }
7172
7173 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7174 let text_layout_details = &self.text_layout_details(cx);
7175 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7176 s.move_heads_with(|map, head, goal| {
7177 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7178 })
7179 })
7180 }
7181
7182 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7183 let text_layout_details = &self.text_layout_details(cx);
7184 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7185 s.move_heads_with(|map, head, goal| {
7186 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7187 })
7188 })
7189 }
7190
7191 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7192 let Some(row_count) = self.visible_row_count() else {
7193 return;
7194 };
7195
7196 let text_layout_details = &self.text_layout_details(cx);
7197
7198 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7199 s.move_heads_with(|map, head, goal| {
7200 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7201 })
7202 })
7203 }
7204
7205 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7206 if self.take_rename(true, cx).is_some() {
7207 return;
7208 }
7209
7210 if self
7211 .context_menu
7212 .borrow_mut()
7213 .as_mut()
7214 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7215 .unwrap_or(false)
7216 {
7217 return;
7218 }
7219
7220 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7221 cx.propagate();
7222 return;
7223 }
7224
7225 let Some(row_count) = self.visible_row_count() else {
7226 return;
7227 };
7228
7229 let autoscroll = if action.center_cursor {
7230 Autoscroll::center()
7231 } else {
7232 Autoscroll::fit()
7233 };
7234
7235 let text_layout_details = &self.text_layout_details(cx);
7236
7237 self.change_selections(Some(autoscroll), cx, |s| {
7238 let line_mode = s.line_mode;
7239 s.move_with(|map, selection| {
7240 if !selection.is_empty() && !line_mode {
7241 selection.goal = SelectionGoal::None;
7242 }
7243 let (cursor, goal) = movement::up_by_rows(
7244 map,
7245 selection.end,
7246 row_count,
7247 selection.goal,
7248 false,
7249 text_layout_details,
7250 );
7251 selection.collapse_to(cursor, goal);
7252 });
7253 });
7254 }
7255
7256 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7257 let text_layout_details = &self.text_layout_details(cx);
7258 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7259 s.move_heads_with(|map, head, goal| {
7260 movement::up(map, head, goal, false, text_layout_details)
7261 })
7262 })
7263 }
7264
7265 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7266 self.take_rename(true, cx);
7267
7268 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7269 cx.propagate();
7270 return;
7271 }
7272
7273 let text_layout_details = &self.text_layout_details(cx);
7274 let selection_count = self.selections.count();
7275 let first_selection = self.selections.first_anchor();
7276
7277 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7278 let line_mode = s.line_mode;
7279 s.move_with(|map, selection| {
7280 if !selection.is_empty() && !line_mode {
7281 selection.goal = SelectionGoal::None;
7282 }
7283 let (cursor, goal) = movement::down(
7284 map,
7285 selection.end,
7286 selection.goal,
7287 false,
7288 text_layout_details,
7289 );
7290 selection.collapse_to(cursor, goal);
7291 });
7292 });
7293
7294 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7295 {
7296 cx.propagate();
7297 }
7298 }
7299
7300 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7301 let Some(row_count) = self.visible_row_count() else {
7302 return;
7303 };
7304
7305 let text_layout_details = &self.text_layout_details(cx);
7306
7307 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7308 s.move_heads_with(|map, head, goal| {
7309 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7310 })
7311 })
7312 }
7313
7314 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7315 if self.take_rename(true, cx).is_some() {
7316 return;
7317 }
7318
7319 if self
7320 .context_menu
7321 .borrow_mut()
7322 .as_mut()
7323 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7324 .unwrap_or(false)
7325 {
7326 return;
7327 }
7328
7329 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7330 cx.propagate();
7331 return;
7332 }
7333
7334 let Some(row_count) = self.visible_row_count() else {
7335 return;
7336 };
7337
7338 let autoscroll = if action.center_cursor {
7339 Autoscroll::center()
7340 } else {
7341 Autoscroll::fit()
7342 };
7343
7344 let text_layout_details = &self.text_layout_details(cx);
7345 self.change_selections(Some(autoscroll), cx, |s| {
7346 let line_mode = s.line_mode;
7347 s.move_with(|map, selection| {
7348 if !selection.is_empty() && !line_mode {
7349 selection.goal = SelectionGoal::None;
7350 }
7351 let (cursor, goal) = movement::down_by_rows(
7352 map,
7353 selection.end,
7354 row_count,
7355 selection.goal,
7356 false,
7357 text_layout_details,
7358 );
7359 selection.collapse_to(cursor, goal);
7360 });
7361 });
7362 }
7363
7364 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7365 let text_layout_details = &self.text_layout_details(cx);
7366 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7367 s.move_heads_with(|map, head, goal| {
7368 movement::down(map, head, goal, false, text_layout_details)
7369 })
7370 });
7371 }
7372
7373 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7374 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7375 context_menu.select_first(self.completion_provider.as_deref(), cx);
7376 }
7377 }
7378
7379 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7380 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7381 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7382 }
7383 }
7384
7385 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7386 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7387 context_menu.select_next(self.completion_provider.as_deref(), cx);
7388 }
7389 }
7390
7391 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7392 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7393 context_menu.select_last(self.completion_provider.as_deref(), cx);
7394 }
7395 }
7396
7397 pub fn move_to_previous_word_start(
7398 &mut self,
7399 _: &MoveToPreviousWordStart,
7400 cx: &mut ViewContext<Self>,
7401 ) {
7402 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7403 s.move_cursors_with(|map, head, _| {
7404 (
7405 movement::previous_word_start(map, head),
7406 SelectionGoal::None,
7407 )
7408 });
7409 })
7410 }
7411
7412 pub fn move_to_previous_subword_start(
7413 &mut self,
7414 _: &MoveToPreviousSubwordStart,
7415 cx: &mut ViewContext<Self>,
7416 ) {
7417 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7418 s.move_cursors_with(|map, head, _| {
7419 (
7420 movement::previous_subword_start(map, head),
7421 SelectionGoal::None,
7422 )
7423 });
7424 })
7425 }
7426
7427 pub fn select_to_previous_word_start(
7428 &mut self,
7429 _: &SelectToPreviousWordStart,
7430 cx: &mut ViewContext<Self>,
7431 ) {
7432 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7433 s.move_heads_with(|map, head, _| {
7434 (
7435 movement::previous_word_start(map, head),
7436 SelectionGoal::None,
7437 )
7438 });
7439 })
7440 }
7441
7442 pub fn select_to_previous_subword_start(
7443 &mut self,
7444 _: &SelectToPreviousSubwordStart,
7445 cx: &mut ViewContext<Self>,
7446 ) {
7447 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7448 s.move_heads_with(|map, head, _| {
7449 (
7450 movement::previous_subword_start(map, head),
7451 SelectionGoal::None,
7452 )
7453 });
7454 })
7455 }
7456
7457 pub fn delete_to_previous_word_start(
7458 &mut self,
7459 action: &DeleteToPreviousWordStart,
7460 cx: &mut ViewContext<Self>,
7461 ) {
7462 self.transact(cx, |this, cx| {
7463 this.select_autoclose_pair(cx);
7464 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7465 let line_mode = s.line_mode;
7466 s.move_with(|map, selection| {
7467 if selection.is_empty() && !line_mode {
7468 let cursor = if action.ignore_newlines {
7469 movement::previous_word_start(map, selection.head())
7470 } else {
7471 movement::previous_word_start_or_newline(map, selection.head())
7472 };
7473 selection.set_head(cursor, SelectionGoal::None);
7474 }
7475 });
7476 });
7477 this.insert("", cx);
7478 });
7479 }
7480
7481 pub fn delete_to_previous_subword_start(
7482 &mut self,
7483 _: &DeleteToPreviousSubwordStart,
7484 cx: &mut ViewContext<Self>,
7485 ) {
7486 self.transact(cx, |this, cx| {
7487 this.select_autoclose_pair(cx);
7488 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7489 let line_mode = s.line_mode;
7490 s.move_with(|map, selection| {
7491 if selection.is_empty() && !line_mode {
7492 let cursor = movement::previous_subword_start(map, selection.head());
7493 selection.set_head(cursor, SelectionGoal::None);
7494 }
7495 });
7496 });
7497 this.insert("", cx);
7498 });
7499 }
7500
7501 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7502 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7503 s.move_cursors_with(|map, head, _| {
7504 (movement::next_word_end(map, head), SelectionGoal::None)
7505 });
7506 })
7507 }
7508
7509 pub fn move_to_next_subword_end(
7510 &mut self,
7511 _: &MoveToNextSubwordEnd,
7512 cx: &mut ViewContext<Self>,
7513 ) {
7514 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7515 s.move_cursors_with(|map, head, _| {
7516 (movement::next_subword_end(map, head), SelectionGoal::None)
7517 });
7518 })
7519 }
7520
7521 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7522 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7523 s.move_heads_with(|map, head, _| {
7524 (movement::next_word_end(map, head), SelectionGoal::None)
7525 });
7526 })
7527 }
7528
7529 pub fn select_to_next_subword_end(
7530 &mut self,
7531 _: &SelectToNextSubwordEnd,
7532 cx: &mut ViewContext<Self>,
7533 ) {
7534 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7535 s.move_heads_with(|map, head, _| {
7536 (movement::next_subword_end(map, head), SelectionGoal::None)
7537 });
7538 })
7539 }
7540
7541 pub fn delete_to_next_word_end(
7542 &mut self,
7543 action: &DeleteToNextWordEnd,
7544 cx: &mut ViewContext<Self>,
7545 ) {
7546 self.transact(cx, |this, cx| {
7547 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7548 let line_mode = s.line_mode;
7549 s.move_with(|map, selection| {
7550 if selection.is_empty() && !line_mode {
7551 let cursor = if action.ignore_newlines {
7552 movement::next_word_end(map, selection.head())
7553 } else {
7554 movement::next_word_end_or_newline(map, selection.head())
7555 };
7556 selection.set_head(cursor, SelectionGoal::None);
7557 }
7558 });
7559 });
7560 this.insert("", cx);
7561 });
7562 }
7563
7564 pub fn delete_to_next_subword_end(
7565 &mut self,
7566 _: &DeleteToNextSubwordEnd,
7567 cx: &mut ViewContext<Self>,
7568 ) {
7569 self.transact(cx, |this, cx| {
7570 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7571 s.move_with(|map, selection| {
7572 if selection.is_empty() {
7573 let cursor = movement::next_subword_end(map, selection.head());
7574 selection.set_head(cursor, SelectionGoal::None);
7575 }
7576 });
7577 });
7578 this.insert("", cx);
7579 });
7580 }
7581
7582 pub fn move_to_beginning_of_line(
7583 &mut self,
7584 action: &MoveToBeginningOfLine,
7585 cx: &mut ViewContext<Self>,
7586 ) {
7587 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7588 s.move_cursors_with(|map, head, _| {
7589 (
7590 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7591 SelectionGoal::None,
7592 )
7593 });
7594 })
7595 }
7596
7597 pub fn select_to_beginning_of_line(
7598 &mut self,
7599 action: &SelectToBeginningOfLine,
7600 cx: &mut ViewContext<Self>,
7601 ) {
7602 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7603 s.move_heads_with(|map, head, _| {
7604 (
7605 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7606 SelectionGoal::None,
7607 )
7608 });
7609 });
7610 }
7611
7612 pub fn delete_to_beginning_of_line(
7613 &mut self,
7614 _: &DeleteToBeginningOfLine,
7615 cx: &mut ViewContext<Self>,
7616 ) {
7617 self.transact(cx, |this, cx| {
7618 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7619 s.move_with(|_, selection| {
7620 selection.reversed = true;
7621 });
7622 });
7623
7624 this.select_to_beginning_of_line(
7625 &SelectToBeginningOfLine {
7626 stop_at_soft_wraps: false,
7627 },
7628 cx,
7629 );
7630 this.backspace(&Backspace, cx);
7631 });
7632 }
7633
7634 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7635 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7636 s.move_cursors_with(|map, head, _| {
7637 (
7638 movement::line_end(map, head, action.stop_at_soft_wraps),
7639 SelectionGoal::None,
7640 )
7641 });
7642 })
7643 }
7644
7645 pub fn select_to_end_of_line(
7646 &mut self,
7647 action: &SelectToEndOfLine,
7648 cx: &mut ViewContext<Self>,
7649 ) {
7650 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7651 s.move_heads_with(|map, head, _| {
7652 (
7653 movement::line_end(map, head, action.stop_at_soft_wraps),
7654 SelectionGoal::None,
7655 )
7656 });
7657 })
7658 }
7659
7660 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7661 self.transact(cx, |this, cx| {
7662 this.select_to_end_of_line(
7663 &SelectToEndOfLine {
7664 stop_at_soft_wraps: false,
7665 },
7666 cx,
7667 );
7668 this.delete(&Delete, cx);
7669 });
7670 }
7671
7672 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7673 self.transact(cx, |this, cx| {
7674 this.select_to_end_of_line(
7675 &SelectToEndOfLine {
7676 stop_at_soft_wraps: false,
7677 },
7678 cx,
7679 );
7680 this.cut(&Cut, cx);
7681 });
7682 }
7683
7684 pub fn move_to_start_of_paragraph(
7685 &mut self,
7686 _: &MoveToStartOfParagraph,
7687 cx: &mut ViewContext<Self>,
7688 ) {
7689 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7690 cx.propagate();
7691 return;
7692 }
7693
7694 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7695 s.move_with(|map, selection| {
7696 selection.collapse_to(
7697 movement::start_of_paragraph(map, selection.head(), 1),
7698 SelectionGoal::None,
7699 )
7700 });
7701 })
7702 }
7703
7704 pub fn move_to_end_of_paragraph(
7705 &mut self,
7706 _: &MoveToEndOfParagraph,
7707 cx: &mut ViewContext<Self>,
7708 ) {
7709 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7710 cx.propagate();
7711 return;
7712 }
7713
7714 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7715 s.move_with(|map, selection| {
7716 selection.collapse_to(
7717 movement::end_of_paragraph(map, selection.head(), 1),
7718 SelectionGoal::None,
7719 )
7720 });
7721 })
7722 }
7723
7724 pub fn select_to_start_of_paragraph(
7725 &mut self,
7726 _: &SelectToStartOfParagraph,
7727 cx: &mut ViewContext<Self>,
7728 ) {
7729 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7730 cx.propagate();
7731 return;
7732 }
7733
7734 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7735 s.move_heads_with(|map, head, _| {
7736 (
7737 movement::start_of_paragraph(map, head, 1),
7738 SelectionGoal::None,
7739 )
7740 });
7741 })
7742 }
7743
7744 pub fn select_to_end_of_paragraph(
7745 &mut self,
7746 _: &SelectToEndOfParagraph,
7747 cx: &mut ViewContext<Self>,
7748 ) {
7749 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7750 cx.propagate();
7751 return;
7752 }
7753
7754 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7755 s.move_heads_with(|map, head, _| {
7756 (
7757 movement::end_of_paragraph(map, head, 1),
7758 SelectionGoal::None,
7759 )
7760 });
7761 })
7762 }
7763
7764 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7765 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7766 cx.propagate();
7767 return;
7768 }
7769
7770 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7771 s.select_ranges(vec![0..0]);
7772 });
7773 }
7774
7775 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7776 let mut selection = self.selections.last::<Point>(cx);
7777 selection.set_head(Point::zero(), SelectionGoal::None);
7778
7779 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7780 s.select(vec![selection]);
7781 });
7782 }
7783
7784 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7785 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7786 cx.propagate();
7787 return;
7788 }
7789
7790 let cursor = self.buffer.read(cx).read(cx).len();
7791 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7792 s.select_ranges(vec![cursor..cursor])
7793 });
7794 }
7795
7796 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7797 self.nav_history = nav_history;
7798 }
7799
7800 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7801 self.nav_history.as_ref()
7802 }
7803
7804 fn push_to_nav_history(
7805 &mut self,
7806 cursor_anchor: Anchor,
7807 new_position: Option<Point>,
7808 cx: &mut ViewContext<Self>,
7809 ) {
7810 if let Some(nav_history) = self.nav_history.as_mut() {
7811 let buffer = self.buffer.read(cx).read(cx);
7812 let cursor_position = cursor_anchor.to_point(&buffer);
7813 let scroll_state = self.scroll_manager.anchor();
7814 let scroll_top_row = scroll_state.top_row(&buffer);
7815 drop(buffer);
7816
7817 if let Some(new_position) = new_position {
7818 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7819 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7820 return;
7821 }
7822 }
7823
7824 nav_history.push(
7825 Some(NavigationData {
7826 cursor_anchor,
7827 cursor_position,
7828 scroll_anchor: scroll_state,
7829 scroll_top_row,
7830 }),
7831 cx,
7832 );
7833 }
7834 }
7835
7836 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7837 let buffer = self.buffer.read(cx).snapshot(cx);
7838 let mut selection = self.selections.first::<usize>(cx);
7839 selection.set_head(buffer.len(), SelectionGoal::None);
7840 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7841 s.select(vec![selection]);
7842 });
7843 }
7844
7845 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7846 let end = self.buffer.read(cx).read(cx).len();
7847 self.change_selections(None, cx, |s| {
7848 s.select_ranges(vec![0..end]);
7849 });
7850 }
7851
7852 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7853 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7854 let mut selections = self.selections.all::<Point>(cx);
7855 let max_point = display_map.buffer_snapshot.max_point();
7856 for selection in &mut selections {
7857 let rows = selection.spanned_rows(true, &display_map);
7858 selection.start = Point::new(rows.start.0, 0);
7859 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7860 selection.reversed = false;
7861 }
7862 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7863 s.select(selections);
7864 });
7865 }
7866
7867 pub fn split_selection_into_lines(
7868 &mut self,
7869 _: &SplitSelectionIntoLines,
7870 cx: &mut ViewContext<Self>,
7871 ) {
7872 let mut to_unfold = Vec::new();
7873 let mut new_selection_ranges = Vec::new();
7874 {
7875 let selections = self.selections.all::<Point>(cx);
7876 let buffer = self.buffer.read(cx).read(cx);
7877 for selection in selections {
7878 for row in selection.start.row..selection.end.row {
7879 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7880 new_selection_ranges.push(cursor..cursor);
7881 }
7882 new_selection_ranges.push(selection.end..selection.end);
7883 to_unfold.push(selection.start..selection.end);
7884 }
7885 }
7886 self.unfold_ranges(&to_unfold, true, true, cx);
7887 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7888 s.select_ranges(new_selection_ranges);
7889 });
7890 }
7891
7892 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7893 self.add_selection(true, cx);
7894 }
7895
7896 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7897 self.add_selection(false, cx);
7898 }
7899
7900 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7901 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7902 let mut selections = self.selections.all::<Point>(cx);
7903 let text_layout_details = self.text_layout_details(cx);
7904 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7905 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7906 let range = oldest_selection.display_range(&display_map).sorted();
7907
7908 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7909 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7910 let positions = start_x.min(end_x)..start_x.max(end_x);
7911
7912 selections.clear();
7913 let mut stack = Vec::new();
7914 for row in range.start.row().0..=range.end.row().0 {
7915 if let Some(selection) = self.selections.build_columnar_selection(
7916 &display_map,
7917 DisplayRow(row),
7918 &positions,
7919 oldest_selection.reversed,
7920 &text_layout_details,
7921 ) {
7922 stack.push(selection.id);
7923 selections.push(selection);
7924 }
7925 }
7926
7927 if above {
7928 stack.reverse();
7929 }
7930
7931 AddSelectionsState { above, stack }
7932 });
7933
7934 let last_added_selection = *state.stack.last().unwrap();
7935 let mut new_selections = Vec::new();
7936 if above == state.above {
7937 let end_row = if above {
7938 DisplayRow(0)
7939 } else {
7940 display_map.max_point().row()
7941 };
7942
7943 'outer: for selection in selections {
7944 if selection.id == last_added_selection {
7945 let range = selection.display_range(&display_map).sorted();
7946 debug_assert_eq!(range.start.row(), range.end.row());
7947 let mut row = range.start.row();
7948 let positions =
7949 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7950 px(start)..px(end)
7951 } else {
7952 let start_x =
7953 display_map.x_for_display_point(range.start, &text_layout_details);
7954 let end_x =
7955 display_map.x_for_display_point(range.end, &text_layout_details);
7956 start_x.min(end_x)..start_x.max(end_x)
7957 };
7958
7959 while row != end_row {
7960 if above {
7961 row.0 -= 1;
7962 } else {
7963 row.0 += 1;
7964 }
7965
7966 if let Some(new_selection) = self.selections.build_columnar_selection(
7967 &display_map,
7968 row,
7969 &positions,
7970 selection.reversed,
7971 &text_layout_details,
7972 ) {
7973 state.stack.push(new_selection.id);
7974 if above {
7975 new_selections.push(new_selection);
7976 new_selections.push(selection);
7977 } else {
7978 new_selections.push(selection);
7979 new_selections.push(new_selection);
7980 }
7981
7982 continue 'outer;
7983 }
7984 }
7985 }
7986
7987 new_selections.push(selection);
7988 }
7989 } else {
7990 new_selections = selections;
7991 new_selections.retain(|s| s.id != last_added_selection);
7992 state.stack.pop();
7993 }
7994
7995 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7996 s.select(new_selections);
7997 });
7998 if state.stack.len() > 1 {
7999 self.add_selections_state = Some(state);
8000 }
8001 }
8002
8003 pub fn select_next_match_internal(
8004 &mut self,
8005 display_map: &DisplaySnapshot,
8006 replace_newest: bool,
8007 autoscroll: Option<Autoscroll>,
8008 cx: &mut ViewContext<Self>,
8009 ) -> Result<()> {
8010 fn select_next_match_ranges(
8011 this: &mut Editor,
8012 range: Range<usize>,
8013 replace_newest: bool,
8014 auto_scroll: Option<Autoscroll>,
8015 cx: &mut ViewContext<Editor>,
8016 ) {
8017 this.unfold_ranges(&[range.clone()], false, true, cx);
8018 this.change_selections(auto_scroll, cx, |s| {
8019 if replace_newest {
8020 s.delete(s.newest_anchor().id);
8021 }
8022 s.insert_range(range.clone());
8023 });
8024 }
8025
8026 let buffer = &display_map.buffer_snapshot;
8027 let mut selections = self.selections.all::<usize>(cx);
8028 if let Some(mut select_next_state) = self.select_next_state.take() {
8029 let query = &select_next_state.query;
8030 if !select_next_state.done {
8031 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8032 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8033 let mut next_selected_range = None;
8034
8035 let bytes_after_last_selection =
8036 buffer.bytes_in_range(last_selection.end..buffer.len());
8037 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8038 let query_matches = query
8039 .stream_find_iter(bytes_after_last_selection)
8040 .map(|result| (last_selection.end, result))
8041 .chain(
8042 query
8043 .stream_find_iter(bytes_before_first_selection)
8044 .map(|result| (0, result)),
8045 );
8046
8047 for (start_offset, query_match) in query_matches {
8048 let query_match = query_match.unwrap(); // can only fail due to I/O
8049 let offset_range =
8050 start_offset + query_match.start()..start_offset + query_match.end();
8051 let display_range = offset_range.start.to_display_point(display_map)
8052 ..offset_range.end.to_display_point(display_map);
8053
8054 if !select_next_state.wordwise
8055 || (!movement::is_inside_word(display_map, display_range.start)
8056 && !movement::is_inside_word(display_map, display_range.end))
8057 {
8058 // TODO: This is n^2, because we might check all the selections
8059 if !selections
8060 .iter()
8061 .any(|selection| selection.range().overlaps(&offset_range))
8062 {
8063 next_selected_range = Some(offset_range);
8064 break;
8065 }
8066 }
8067 }
8068
8069 if let Some(next_selected_range) = next_selected_range {
8070 select_next_match_ranges(
8071 self,
8072 next_selected_range,
8073 replace_newest,
8074 autoscroll,
8075 cx,
8076 );
8077 } else {
8078 select_next_state.done = true;
8079 }
8080 }
8081
8082 self.select_next_state = Some(select_next_state);
8083 } else {
8084 let mut only_carets = true;
8085 let mut same_text_selected = true;
8086 let mut selected_text = None;
8087
8088 let mut selections_iter = selections.iter().peekable();
8089 while let Some(selection) = selections_iter.next() {
8090 if selection.start != selection.end {
8091 only_carets = false;
8092 }
8093
8094 if same_text_selected {
8095 if selected_text.is_none() {
8096 selected_text =
8097 Some(buffer.text_for_range(selection.range()).collect::<String>());
8098 }
8099
8100 if let Some(next_selection) = selections_iter.peek() {
8101 if next_selection.range().len() == selection.range().len() {
8102 let next_selected_text = buffer
8103 .text_for_range(next_selection.range())
8104 .collect::<String>();
8105 if Some(next_selected_text) != selected_text {
8106 same_text_selected = false;
8107 selected_text = None;
8108 }
8109 } else {
8110 same_text_selected = false;
8111 selected_text = None;
8112 }
8113 }
8114 }
8115 }
8116
8117 if only_carets {
8118 for selection in &mut selections {
8119 let word_range = movement::surrounding_word(
8120 display_map,
8121 selection.start.to_display_point(display_map),
8122 );
8123 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8124 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8125 selection.goal = SelectionGoal::None;
8126 selection.reversed = false;
8127 select_next_match_ranges(
8128 self,
8129 selection.start..selection.end,
8130 replace_newest,
8131 autoscroll,
8132 cx,
8133 );
8134 }
8135
8136 if selections.len() == 1 {
8137 let selection = selections
8138 .last()
8139 .expect("ensured that there's only one selection");
8140 let query = buffer
8141 .text_for_range(selection.start..selection.end)
8142 .collect::<String>();
8143 let is_empty = query.is_empty();
8144 let select_state = SelectNextState {
8145 query: AhoCorasick::new(&[query])?,
8146 wordwise: true,
8147 done: is_empty,
8148 };
8149 self.select_next_state = Some(select_state);
8150 } else {
8151 self.select_next_state = None;
8152 }
8153 } else if let Some(selected_text) = selected_text {
8154 self.select_next_state = Some(SelectNextState {
8155 query: AhoCorasick::new(&[selected_text])?,
8156 wordwise: false,
8157 done: false,
8158 });
8159 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8160 }
8161 }
8162 Ok(())
8163 }
8164
8165 pub fn select_all_matches(
8166 &mut self,
8167 _action: &SelectAllMatches,
8168 cx: &mut ViewContext<Self>,
8169 ) -> Result<()> {
8170 self.push_to_selection_history();
8171 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8172
8173 self.select_next_match_internal(&display_map, false, None, cx)?;
8174 let Some(select_next_state) = self.select_next_state.as_mut() else {
8175 return Ok(());
8176 };
8177 if select_next_state.done {
8178 return Ok(());
8179 }
8180
8181 let mut new_selections = self.selections.all::<usize>(cx);
8182
8183 let buffer = &display_map.buffer_snapshot;
8184 let query_matches = select_next_state
8185 .query
8186 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8187
8188 for query_match in query_matches {
8189 let query_match = query_match.unwrap(); // can only fail due to I/O
8190 let offset_range = query_match.start()..query_match.end();
8191 let display_range = offset_range.start.to_display_point(&display_map)
8192 ..offset_range.end.to_display_point(&display_map);
8193
8194 if !select_next_state.wordwise
8195 || (!movement::is_inside_word(&display_map, display_range.start)
8196 && !movement::is_inside_word(&display_map, display_range.end))
8197 {
8198 self.selections.change_with(cx, |selections| {
8199 new_selections.push(Selection {
8200 id: selections.new_selection_id(),
8201 start: offset_range.start,
8202 end: offset_range.end,
8203 reversed: false,
8204 goal: SelectionGoal::None,
8205 });
8206 });
8207 }
8208 }
8209
8210 new_selections.sort_by_key(|selection| selection.start);
8211 let mut ix = 0;
8212 while ix + 1 < new_selections.len() {
8213 let current_selection = &new_selections[ix];
8214 let next_selection = &new_selections[ix + 1];
8215 if current_selection.range().overlaps(&next_selection.range()) {
8216 if current_selection.id < next_selection.id {
8217 new_selections.remove(ix + 1);
8218 } else {
8219 new_selections.remove(ix);
8220 }
8221 } else {
8222 ix += 1;
8223 }
8224 }
8225
8226 select_next_state.done = true;
8227 self.unfold_ranges(
8228 &new_selections
8229 .iter()
8230 .map(|selection| selection.range())
8231 .collect::<Vec<_>>(),
8232 false,
8233 false,
8234 cx,
8235 );
8236 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8237 selections.select(new_selections)
8238 });
8239
8240 Ok(())
8241 }
8242
8243 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8244 self.push_to_selection_history();
8245 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8246 self.select_next_match_internal(
8247 &display_map,
8248 action.replace_newest,
8249 Some(Autoscroll::newest()),
8250 cx,
8251 )?;
8252 Ok(())
8253 }
8254
8255 pub fn select_previous(
8256 &mut self,
8257 action: &SelectPrevious,
8258 cx: &mut ViewContext<Self>,
8259 ) -> Result<()> {
8260 self.push_to_selection_history();
8261 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8262 let buffer = &display_map.buffer_snapshot;
8263 let mut selections = self.selections.all::<usize>(cx);
8264 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8265 let query = &select_prev_state.query;
8266 if !select_prev_state.done {
8267 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8268 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8269 let mut next_selected_range = None;
8270 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8271 let bytes_before_last_selection =
8272 buffer.reversed_bytes_in_range(0..last_selection.start);
8273 let bytes_after_first_selection =
8274 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8275 let query_matches = query
8276 .stream_find_iter(bytes_before_last_selection)
8277 .map(|result| (last_selection.start, result))
8278 .chain(
8279 query
8280 .stream_find_iter(bytes_after_first_selection)
8281 .map(|result| (buffer.len(), result)),
8282 );
8283 for (end_offset, query_match) in query_matches {
8284 let query_match = query_match.unwrap(); // can only fail due to I/O
8285 let offset_range =
8286 end_offset - query_match.end()..end_offset - query_match.start();
8287 let display_range = offset_range.start.to_display_point(&display_map)
8288 ..offset_range.end.to_display_point(&display_map);
8289
8290 if !select_prev_state.wordwise
8291 || (!movement::is_inside_word(&display_map, display_range.start)
8292 && !movement::is_inside_word(&display_map, display_range.end))
8293 {
8294 next_selected_range = Some(offset_range);
8295 break;
8296 }
8297 }
8298
8299 if let Some(next_selected_range) = next_selected_range {
8300 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8301 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8302 if action.replace_newest {
8303 s.delete(s.newest_anchor().id);
8304 }
8305 s.insert_range(next_selected_range);
8306 });
8307 } else {
8308 select_prev_state.done = true;
8309 }
8310 }
8311
8312 self.select_prev_state = Some(select_prev_state);
8313 } else {
8314 let mut only_carets = true;
8315 let mut same_text_selected = true;
8316 let mut selected_text = None;
8317
8318 let mut selections_iter = selections.iter().peekable();
8319 while let Some(selection) = selections_iter.next() {
8320 if selection.start != selection.end {
8321 only_carets = false;
8322 }
8323
8324 if same_text_selected {
8325 if selected_text.is_none() {
8326 selected_text =
8327 Some(buffer.text_for_range(selection.range()).collect::<String>());
8328 }
8329
8330 if let Some(next_selection) = selections_iter.peek() {
8331 if next_selection.range().len() == selection.range().len() {
8332 let next_selected_text = buffer
8333 .text_for_range(next_selection.range())
8334 .collect::<String>();
8335 if Some(next_selected_text) != selected_text {
8336 same_text_selected = false;
8337 selected_text = None;
8338 }
8339 } else {
8340 same_text_selected = false;
8341 selected_text = None;
8342 }
8343 }
8344 }
8345 }
8346
8347 if only_carets {
8348 for selection in &mut selections {
8349 let word_range = movement::surrounding_word(
8350 &display_map,
8351 selection.start.to_display_point(&display_map),
8352 );
8353 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8354 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8355 selection.goal = SelectionGoal::None;
8356 selection.reversed = false;
8357 }
8358 if selections.len() == 1 {
8359 let selection = selections
8360 .last()
8361 .expect("ensured that there's only one selection");
8362 let query = buffer
8363 .text_for_range(selection.start..selection.end)
8364 .collect::<String>();
8365 let is_empty = query.is_empty();
8366 let select_state = SelectNextState {
8367 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8368 wordwise: true,
8369 done: is_empty,
8370 };
8371 self.select_prev_state = Some(select_state);
8372 } else {
8373 self.select_prev_state = None;
8374 }
8375
8376 self.unfold_ranges(
8377 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8378 false,
8379 true,
8380 cx,
8381 );
8382 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8383 s.select(selections);
8384 });
8385 } else if let Some(selected_text) = selected_text {
8386 self.select_prev_state = Some(SelectNextState {
8387 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8388 wordwise: false,
8389 done: false,
8390 });
8391 self.select_previous(action, cx)?;
8392 }
8393 }
8394 Ok(())
8395 }
8396
8397 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8398 if self.read_only(cx) {
8399 return;
8400 }
8401 let text_layout_details = &self.text_layout_details(cx);
8402 self.transact(cx, |this, cx| {
8403 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8404 let mut edits = Vec::new();
8405 let mut selection_edit_ranges = Vec::new();
8406 let mut last_toggled_row = None;
8407 let snapshot = this.buffer.read(cx).read(cx);
8408 let empty_str: Arc<str> = Arc::default();
8409 let mut suffixes_inserted = Vec::new();
8410 let ignore_indent = action.ignore_indent;
8411
8412 fn comment_prefix_range(
8413 snapshot: &MultiBufferSnapshot,
8414 row: MultiBufferRow,
8415 comment_prefix: &str,
8416 comment_prefix_whitespace: &str,
8417 ignore_indent: bool,
8418 ) -> Range<Point> {
8419 let indent_size = if ignore_indent {
8420 0
8421 } else {
8422 snapshot.indent_size_for_line(row).len
8423 };
8424
8425 let start = Point::new(row.0, indent_size);
8426
8427 let mut line_bytes = snapshot
8428 .bytes_in_range(start..snapshot.max_point())
8429 .flatten()
8430 .copied();
8431
8432 // If this line currently begins with the line comment prefix, then record
8433 // the range containing the prefix.
8434 if line_bytes
8435 .by_ref()
8436 .take(comment_prefix.len())
8437 .eq(comment_prefix.bytes())
8438 {
8439 // Include any whitespace that matches the comment prefix.
8440 let matching_whitespace_len = line_bytes
8441 .zip(comment_prefix_whitespace.bytes())
8442 .take_while(|(a, b)| a == b)
8443 .count() as u32;
8444 let end = Point::new(
8445 start.row,
8446 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8447 );
8448 start..end
8449 } else {
8450 start..start
8451 }
8452 }
8453
8454 fn comment_suffix_range(
8455 snapshot: &MultiBufferSnapshot,
8456 row: MultiBufferRow,
8457 comment_suffix: &str,
8458 comment_suffix_has_leading_space: bool,
8459 ) -> Range<Point> {
8460 let end = Point::new(row.0, snapshot.line_len(row));
8461 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8462
8463 let mut line_end_bytes = snapshot
8464 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8465 .flatten()
8466 .copied();
8467
8468 let leading_space_len = if suffix_start_column > 0
8469 && line_end_bytes.next() == Some(b' ')
8470 && comment_suffix_has_leading_space
8471 {
8472 1
8473 } else {
8474 0
8475 };
8476
8477 // If this line currently begins with the line comment prefix, then record
8478 // the range containing the prefix.
8479 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8480 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8481 start..end
8482 } else {
8483 end..end
8484 }
8485 }
8486
8487 // TODO: Handle selections that cross excerpts
8488 for selection in &mut selections {
8489 let start_column = snapshot
8490 .indent_size_for_line(MultiBufferRow(selection.start.row))
8491 .len;
8492 let language = if let Some(language) =
8493 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8494 {
8495 language
8496 } else {
8497 continue;
8498 };
8499
8500 selection_edit_ranges.clear();
8501
8502 // If multiple selections contain a given row, avoid processing that
8503 // row more than once.
8504 let mut start_row = MultiBufferRow(selection.start.row);
8505 if last_toggled_row == Some(start_row) {
8506 start_row = start_row.next_row();
8507 }
8508 let end_row =
8509 if selection.end.row > selection.start.row && selection.end.column == 0 {
8510 MultiBufferRow(selection.end.row - 1)
8511 } else {
8512 MultiBufferRow(selection.end.row)
8513 };
8514 last_toggled_row = Some(end_row);
8515
8516 if start_row > end_row {
8517 continue;
8518 }
8519
8520 // If the language has line comments, toggle those.
8521 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8522
8523 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8524 if ignore_indent {
8525 full_comment_prefixes = full_comment_prefixes
8526 .into_iter()
8527 .map(|s| Arc::from(s.trim_end()))
8528 .collect();
8529 }
8530
8531 if !full_comment_prefixes.is_empty() {
8532 let first_prefix = full_comment_prefixes
8533 .first()
8534 .expect("prefixes is non-empty");
8535 let prefix_trimmed_lengths = full_comment_prefixes
8536 .iter()
8537 .map(|p| p.trim_end_matches(' ').len())
8538 .collect::<SmallVec<[usize; 4]>>();
8539
8540 let mut all_selection_lines_are_comments = true;
8541
8542 for row in start_row.0..=end_row.0 {
8543 let row = MultiBufferRow(row);
8544 if start_row < end_row && snapshot.is_line_blank(row) {
8545 continue;
8546 }
8547
8548 let prefix_range = full_comment_prefixes
8549 .iter()
8550 .zip(prefix_trimmed_lengths.iter().copied())
8551 .map(|(prefix, trimmed_prefix_len)| {
8552 comment_prefix_range(
8553 snapshot.deref(),
8554 row,
8555 &prefix[..trimmed_prefix_len],
8556 &prefix[trimmed_prefix_len..],
8557 ignore_indent,
8558 )
8559 })
8560 .max_by_key(|range| range.end.column - range.start.column)
8561 .expect("prefixes is non-empty");
8562
8563 if prefix_range.is_empty() {
8564 all_selection_lines_are_comments = false;
8565 }
8566
8567 selection_edit_ranges.push(prefix_range);
8568 }
8569
8570 if all_selection_lines_are_comments {
8571 edits.extend(
8572 selection_edit_ranges
8573 .iter()
8574 .cloned()
8575 .map(|range| (range, empty_str.clone())),
8576 );
8577 } else {
8578 let min_column = selection_edit_ranges
8579 .iter()
8580 .map(|range| range.start.column)
8581 .min()
8582 .unwrap_or(0);
8583 edits.extend(selection_edit_ranges.iter().map(|range| {
8584 let position = Point::new(range.start.row, min_column);
8585 (position..position, first_prefix.clone())
8586 }));
8587 }
8588 } else if let Some((full_comment_prefix, comment_suffix)) =
8589 language.block_comment_delimiters()
8590 {
8591 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8592 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8593 let prefix_range = comment_prefix_range(
8594 snapshot.deref(),
8595 start_row,
8596 comment_prefix,
8597 comment_prefix_whitespace,
8598 ignore_indent,
8599 );
8600 let suffix_range = comment_suffix_range(
8601 snapshot.deref(),
8602 end_row,
8603 comment_suffix.trim_start_matches(' '),
8604 comment_suffix.starts_with(' '),
8605 );
8606
8607 if prefix_range.is_empty() || suffix_range.is_empty() {
8608 edits.push((
8609 prefix_range.start..prefix_range.start,
8610 full_comment_prefix.clone(),
8611 ));
8612 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8613 suffixes_inserted.push((end_row, comment_suffix.len()));
8614 } else {
8615 edits.push((prefix_range, empty_str.clone()));
8616 edits.push((suffix_range, empty_str.clone()));
8617 }
8618 } else {
8619 continue;
8620 }
8621 }
8622
8623 drop(snapshot);
8624 this.buffer.update(cx, |buffer, cx| {
8625 buffer.edit(edits, None, cx);
8626 });
8627
8628 // Adjust selections so that they end before any comment suffixes that
8629 // were inserted.
8630 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8631 let mut selections = this.selections.all::<Point>(cx);
8632 let snapshot = this.buffer.read(cx).read(cx);
8633 for selection in &mut selections {
8634 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8635 match row.cmp(&MultiBufferRow(selection.end.row)) {
8636 Ordering::Less => {
8637 suffixes_inserted.next();
8638 continue;
8639 }
8640 Ordering::Greater => break,
8641 Ordering::Equal => {
8642 if selection.end.column == snapshot.line_len(row) {
8643 if selection.is_empty() {
8644 selection.start.column -= suffix_len as u32;
8645 }
8646 selection.end.column -= suffix_len as u32;
8647 }
8648 break;
8649 }
8650 }
8651 }
8652 }
8653
8654 drop(snapshot);
8655 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8656
8657 let selections = this.selections.all::<Point>(cx);
8658 let selections_on_single_row = selections.windows(2).all(|selections| {
8659 selections[0].start.row == selections[1].start.row
8660 && selections[0].end.row == selections[1].end.row
8661 && selections[0].start.row == selections[0].end.row
8662 });
8663 let selections_selecting = selections
8664 .iter()
8665 .any(|selection| selection.start != selection.end);
8666 let advance_downwards = action.advance_downwards
8667 && selections_on_single_row
8668 && !selections_selecting
8669 && !matches!(this.mode, EditorMode::SingleLine { .. });
8670
8671 if advance_downwards {
8672 let snapshot = this.buffer.read(cx).snapshot(cx);
8673
8674 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8675 s.move_cursors_with(|display_snapshot, display_point, _| {
8676 let mut point = display_point.to_point(display_snapshot);
8677 point.row += 1;
8678 point = snapshot.clip_point(point, Bias::Left);
8679 let display_point = point.to_display_point(display_snapshot);
8680 let goal = SelectionGoal::HorizontalPosition(
8681 display_snapshot
8682 .x_for_display_point(display_point, text_layout_details)
8683 .into(),
8684 );
8685 (display_point, goal)
8686 })
8687 });
8688 }
8689 });
8690 }
8691
8692 pub fn select_enclosing_symbol(
8693 &mut self,
8694 _: &SelectEnclosingSymbol,
8695 cx: &mut ViewContext<Self>,
8696 ) {
8697 let buffer = self.buffer.read(cx).snapshot(cx);
8698 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8699
8700 fn update_selection(
8701 selection: &Selection<usize>,
8702 buffer_snap: &MultiBufferSnapshot,
8703 ) -> Option<Selection<usize>> {
8704 let cursor = selection.head();
8705 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8706 for symbol in symbols.iter().rev() {
8707 let start = symbol.range.start.to_offset(buffer_snap);
8708 let end = symbol.range.end.to_offset(buffer_snap);
8709 let new_range = start..end;
8710 if start < selection.start || end > selection.end {
8711 return Some(Selection {
8712 id: selection.id,
8713 start: new_range.start,
8714 end: new_range.end,
8715 goal: SelectionGoal::None,
8716 reversed: selection.reversed,
8717 });
8718 }
8719 }
8720 None
8721 }
8722
8723 let mut selected_larger_symbol = false;
8724 let new_selections = old_selections
8725 .iter()
8726 .map(|selection| match update_selection(selection, &buffer) {
8727 Some(new_selection) => {
8728 if new_selection.range() != selection.range() {
8729 selected_larger_symbol = true;
8730 }
8731 new_selection
8732 }
8733 None => selection.clone(),
8734 })
8735 .collect::<Vec<_>>();
8736
8737 if selected_larger_symbol {
8738 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8739 s.select(new_selections);
8740 });
8741 }
8742 }
8743
8744 pub fn select_larger_syntax_node(
8745 &mut self,
8746 _: &SelectLargerSyntaxNode,
8747 cx: &mut ViewContext<Self>,
8748 ) {
8749 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8750 let buffer = self.buffer.read(cx).snapshot(cx);
8751 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8752
8753 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8754 let mut selected_larger_node = false;
8755 let new_selections = old_selections
8756 .iter()
8757 .map(|selection| {
8758 let old_range = selection.start..selection.end;
8759 let mut new_range = old_range.clone();
8760 while let Some(containing_range) =
8761 buffer.range_for_syntax_ancestor(new_range.clone())
8762 {
8763 new_range = containing_range;
8764 if !display_map.intersects_fold(new_range.start)
8765 && !display_map.intersects_fold(new_range.end)
8766 {
8767 break;
8768 }
8769 }
8770
8771 selected_larger_node |= new_range != old_range;
8772 Selection {
8773 id: selection.id,
8774 start: new_range.start,
8775 end: new_range.end,
8776 goal: SelectionGoal::None,
8777 reversed: selection.reversed,
8778 }
8779 })
8780 .collect::<Vec<_>>();
8781
8782 if selected_larger_node {
8783 stack.push(old_selections);
8784 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8785 s.select(new_selections);
8786 });
8787 }
8788 self.select_larger_syntax_node_stack = stack;
8789 }
8790
8791 pub fn select_smaller_syntax_node(
8792 &mut self,
8793 _: &SelectSmallerSyntaxNode,
8794 cx: &mut ViewContext<Self>,
8795 ) {
8796 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8797 if let Some(selections) = stack.pop() {
8798 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8799 s.select(selections.to_vec());
8800 });
8801 }
8802 self.select_larger_syntax_node_stack = stack;
8803 }
8804
8805 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8806 if !EditorSettings::get_global(cx).gutter.runnables {
8807 self.clear_tasks();
8808 return Task::ready(());
8809 }
8810 let project = self.project.as_ref().map(Model::downgrade);
8811 cx.spawn(|this, mut cx| async move {
8812 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8813 let Some(project) = project.and_then(|p| p.upgrade()) else {
8814 return;
8815 };
8816 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8817 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8818 }) else {
8819 return;
8820 };
8821
8822 let hide_runnables = project
8823 .update(&mut cx, |project, cx| {
8824 // Do not display any test indicators in non-dev server remote projects.
8825 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8826 })
8827 .unwrap_or(true);
8828 if hide_runnables {
8829 return;
8830 }
8831 let new_rows =
8832 cx.background_executor()
8833 .spawn({
8834 let snapshot = display_snapshot.clone();
8835 async move {
8836 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8837 }
8838 })
8839 .await;
8840 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8841
8842 this.update(&mut cx, |this, _| {
8843 this.clear_tasks();
8844 for (key, value) in rows {
8845 this.insert_tasks(key, value);
8846 }
8847 })
8848 .ok();
8849 })
8850 }
8851 fn fetch_runnable_ranges(
8852 snapshot: &DisplaySnapshot,
8853 range: Range<Anchor>,
8854 ) -> Vec<language::RunnableRange> {
8855 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8856 }
8857
8858 fn runnable_rows(
8859 project: Model<Project>,
8860 snapshot: DisplaySnapshot,
8861 runnable_ranges: Vec<RunnableRange>,
8862 mut cx: AsyncWindowContext,
8863 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8864 runnable_ranges
8865 .into_iter()
8866 .filter_map(|mut runnable| {
8867 let tasks = cx
8868 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8869 .ok()?;
8870 if tasks.is_empty() {
8871 return None;
8872 }
8873
8874 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8875
8876 let row = snapshot
8877 .buffer_snapshot
8878 .buffer_line_for_row(MultiBufferRow(point.row))?
8879 .1
8880 .start
8881 .row;
8882
8883 let context_range =
8884 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8885 Some((
8886 (runnable.buffer_id, row),
8887 RunnableTasks {
8888 templates: tasks,
8889 offset: MultiBufferOffset(runnable.run_range.start),
8890 context_range,
8891 column: point.column,
8892 extra_variables: runnable.extra_captures,
8893 },
8894 ))
8895 })
8896 .collect()
8897 }
8898
8899 fn templates_with_tags(
8900 project: &Model<Project>,
8901 runnable: &mut Runnable,
8902 cx: &WindowContext<'_>,
8903 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8904 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8905 let (worktree_id, file) = project
8906 .buffer_for_id(runnable.buffer, cx)
8907 .and_then(|buffer| buffer.read(cx).file())
8908 .map(|file| (file.worktree_id(cx), file.clone()))
8909 .unzip();
8910
8911 (
8912 project.task_store().read(cx).task_inventory().cloned(),
8913 worktree_id,
8914 file,
8915 )
8916 });
8917
8918 let tags = mem::take(&mut runnable.tags);
8919 let mut tags: Vec<_> = tags
8920 .into_iter()
8921 .flat_map(|tag| {
8922 let tag = tag.0.clone();
8923 inventory
8924 .as_ref()
8925 .into_iter()
8926 .flat_map(|inventory| {
8927 inventory.read(cx).list_tasks(
8928 file.clone(),
8929 Some(runnable.language.clone()),
8930 worktree_id,
8931 cx,
8932 )
8933 })
8934 .filter(move |(_, template)| {
8935 template.tags.iter().any(|source_tag| source_tag == &tag)
8936 })
8937 })
8938 .sorted_by_key(|(kind, _)| kind.to_owned())
8939 .collect();
8940 if let Some((leading_tag_source, _)) = tags.first() {
8941 // Strongest source wins; if we have worktree tag binding, prefer that to
8942 // global and language bindings;
8943 // if we have a global binding, prefer that to language binding.
8944 let first_mismatch = tags
8945 .iter()
8946 .position(|(tag_source, _)| tag_source != leading_tag_source);
8947 if let Some(index) = first_mismatch {
8948 tags.truncate(index);
8949 }
8950 }
8951
8952 tags
8953 }
8954
8955 pub fn move_to_enclosing_bracket(
8956 &mut self,
8957 _: &MoveToEnclosingBracket,
8958 cx: &mut ViewContext<Self>,
8959 ) {
8960 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8961 s.move_offsets_with(|snapshot, selection| {
8962 let Some(enclosing_bracket_ranges) =
8963 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8964 else {
8965 return;
8966 };
8967
8968 let mut best_length = usize::MAX;
8969 let mut best_inside = false;
8970 let mut best_in_bracket_range = false;
8971 let mut best_destination = None;
8972 for (open, close) in enclosing_bracket_ranges {
8973 let close = close.to_inclusive();
8974 let length = close.end() - open.start;
8975 let inside = selection.start >= open.end && selection.end <= *close.start();
8976 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8977 || close.contains(&selection.head());
8978
8979 // If best is next to a bracket and current isn't, skip
8980 if !in_bracket_range && best_in_bracket_range {
8981 continue;
8982 }
8983
8984 // Prefer smaller lengths unless best is inside and current isn't
8985 if length > best_length && (best_inside || !inside) {
8986 continue;
8987 }
8988
8989 best_length = length;
8990 best_inside = inside;
8991 best_in_bracket_range = in_bracket_range;
8992 best_destination = Some(
8993 if close.contains(&selection.start) && close.contains(&selection.end) {
8994 if inside {
8995 open.end
8996 } else {
8997 open.start
8998 }
8999 } else if inside {
9000 *close.start()
9001 } else {
9002 *close.end()
9003 },
9004 );
9005 }
9006
9007 if let Some(destination) = best_destination {
9008 selection.collapse_to(destination, SelectionGoal::None);
9009 }
9010 })
9011 });
9012 }
9013
9014 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9015 self.end_selection(cx);
9016 self.selection_history.mode = SelectionHistoryMode::Undoing;
9017 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9018 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9019 self.select_next_state = entry.select_next_state;
9020 self.select_prev_state = entry.select_prev_state;
9021 self.add_selections_state = entry.add_selections_state;
9022 self.request_autoscroll(Autoscroll::newest(), cx);
9023 }
9024 self.selection_history.mode = SelectionHistoryMode::Normal;
9025 }
9026
9027 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9028 self.end_selection(cx);
9029 self.selection_history.mode = SelectionHistoryMode::Redoing;
9030 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9031 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9032 self.select_next_state = entry.select_next_state;
9033 self.select_prev_state = entry.select_prev_state;
9034 self.add_selections_state = entry.add_selections_state;
9035 self.request_autoscroll(Autoscroll::newest(), cx);
9036 }
9037 self.selection_history.mode = SelectionHistoryMode::Normal;
9038 }
9039
9040 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9041 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9042 }
9043
9044 pub fn expand_excerpts_down(
9045 &mut self,
9046 action: &ExpandExcerptsDown,
9047 cx: &mut ViewContext<Self>,
9048 ) {
9049 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9050 }
9051
9052 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9053 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9054 }
9055
9056 pub fn expand_excerpts_for_direction(
9057 &mut self,
9058 lines: u32,
9059 direction: ExpandExcerptDirection,
9060 cx: &mut ViewContext<Self>,
9061 ) {
9062 let selections = self.selections.disjoint_anchors();
9063
9064 let lines = if lines == 0 {
9065 EditorSettings::get_global(cx).expand_excerpt_lines
9066 } else {
9067 lines
9068 };
9069
9070 self.buffer.update(cx, |buffer, cx| {
9071 buffer.expand_excerpts(
9072 selections
9073 .iter()
9074 .map(|selection| selection.head().excerpt_id)
9075 .dedup(),
9076 lines,
9077 direction,
9078 cx,
9079 )
9080 })
9081 }
9082
9083 pub fn expand_excerpt(
9084 &mut self,
9085 excerpt: ExcerptId,
9086 direction: ExpandExcerptDirection,
9087 cx: &mut ViewContext<Self>,
9088 ) {
9089 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9090 self.buffer.update(cx, |buffer, cx| {
9091 buffer.expand_excerpts([excerpt], lines, direction, cx)
9092 })
9093 }
9094
9095 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9096 self.go_to_diagnostic_impl(Direction::Next, cx)
9097 }
9098
9099 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9100 self.go_to_diagnostic_impl(Direction::Prev, cx)
9101 }
9102
9103 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9104 let buffer = self.buffer.read(cx).snapshot(cx);
9105 let selection = self.selections.newest::<usize>(cx);
9106
9107 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9108 if direction == Direction::Next {
9109 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9110 let (group_id, jump_to) = popover.activation_info();
9111 if self.activate_diagnostics(group_id, cx) {
9112 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9113 let mut new_selection = s.newest_anchor().clone();
9114 new_selection.collapse_to(jump_to, SelectionGoal::None);
9115 s.select_anchors(vec![new_selection.clone()]);
9116 });
9117 }
9118 return;
9119 }
9120 }
9121
9122 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9123 active_diagnostics
9124 .primary_range
9125 .to_offset(&buffer)
9126 .to_inclusive()
9127 });
9128 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9129 if active_primary_range.contains(&selection.head()) {
9130 *active_primary_range.start()
9131 } else {
9132 selection.head()
9133 }
9134 } else {
9135 selection.head()
9136 };
9137 let snapshot = self.snapshot(cx);
9138 loop {
9139 let diagnostics = if direction == Direction::Prev {
9140 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9141 } else {
9142 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9143 }
9144 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9145 let group = diagnostics
9146 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9147 // be sorted in a stable way
9148 // skip until we are at current active diagnostic, if it exists
9149 .skip_while(|entry| {
9150 (match direction {
9151 Direction::Prev => entry.range.start >= search_start,
9152 Direction::Next => entry.range.start <= search_start,
9153 }) && self
9154 .active_diagnostics
9155 .as_ref()
9156 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9157 })
9158 .find_map(|entry| {
9159 if entry.diagnostic.is_primary
9160 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9161 && !entry.range.is_empty()
9162 // if we match with the active diagnostic, skip it
9163 && Some(entry.diagnostic.group_id)
9164 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9165 {
9166 Some((entry.range, entry.diagnostic.group_id))
9167 } else {
9168 None
9169 }
9170 });
9171
9172 if let Some((primary_range, group_id)) = group {
9173 if self.activate_diagnostics(group_id, cx) {
9174 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9175 s.select(vec![Selection {
9176 id: selection.id,
9177 start: primary_range.start,
9178 end: primary_range.start,
9179 reversed: false,
9180 goal: SelectionGoal::None,
9181 }]);
9182 });
9183 }
9184 break;
9185 } else {
9186 // Cycle around to the start of the buffer, potentially moving back to the start of
9187 // the currently active diagnostic.
9188 active_primary_range.take();
9189 if direction == Direction::Prev {
9190 if search_start == buffer.len() {
9191 break;
9192 } else {
9193 search_start = buffer.len();
9194 }
9195 } else if search_start == 0 {
9196 break;
9197 } else {
9198 search_start = 0;
9199 }
9200 }
9201 }
9202 }
9203
9204 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9205 let snapshot = self.snapshot(cx);
9206 let selection = self.selections.newest::<Point>(cx);
9207 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9208 }
9209
9210 fn go_to_hunk_after_position(
9211 &mut self,
9212 snapshot: &EditorSnapshot,
9213 position: Point,
9214 cx: &mut ViewContext<'_, Editor>,
9215 ) -> Option<MultiBufferDiffHunk> {
9216 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9217 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9218 snapshot,
9219 position,
9220 ix > 0,
9221 snapshot.diff_map.diff_hunks_in_range(
9222 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9223 &snapshot.buffer_snapshot,
9224 ),
9225 cx,
9226 ) {
9227 return Some(hunk);
9228 }
9229 }
9230 None
9231 }
9232
9233 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9234 let snapshot = self.snapshot(cx);
9235 let selection = self.selections.newest::<Point>(cx);
9236 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9237 }
9238
9239 fn go_to_hunk_before_position(
9240 &mut self,
9241 snapshot: &EditorSnapshot,
9242 position: Point,
9243 cx: &mut ViewContext<'_, Editor>,
9244 ) -> Option<MultiBufferDiffHunk> {
9245 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9246 .into_iter()
9247 .enumerate()
9248 {
9249 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9250 snapshot,
9251 position,
9252 ix > 0,
9253 snapshot
9254 .diff_map
9255 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9256 cx,
9257 ) {
9258 return Some(hunk);
9259 }
9260 }
9261 None
9262 }
9263
9264 fn go_to_next_hunk_in_direction(
9265 &mut self,
9266 snapshot: &DisplaySnapshot,
9267 initial_point: Point,
9268 is_wrapped: bool,
9269 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9270 cx: &mut ViewContext<Editor>,
9271 ) -> Option<MultiBufferDiffHunk> {
9272 let display_point = initial_point.to_display_point(snapshot);
9273 let mut hunks = hunks
9274 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9275 .filter(|(display_hunk, _)| {
9276 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9277 })
9278 .dedup();
9279
9280 if let Some((display_hunk, hunk)) = hunks.next() {
9281 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9282 let row = display_hunk.start_display_row();
9283 let point = DisplayPoint::new(row, 0);
9284 s.select_display_ranges([point..point]);
9285 });
9286
9287 Some(hunk)
9288 } else {
9289 None
9290 }
9291 }
9292
9293 pub fn go_to_definition(
9294 &mut self,
9295 _: &GoToDefinition,
9296 cx: &mut ViewContext<Self>,
9297 ) -> Task<Result<Navigated>> {
9298 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9299 cx.spawn(|editor, mut cx| async move {
9300 if definition.await? == Navigated::Yes {
9301 return Ok(Navigated::Yes);
9302 }
9303 match editor.update(&mut cx, |editor, cx| {
9304 editor.find_all_references(&FindAllReferences, cx)
9305 })? {
9306 Some(references) => references.await,
9307 None => Ok(Navigated::No),
9308 }
9309 })
9310 }
9311
9312 pub fn go_to_declaration(
9313 &mut self,
9314 _: &GoToDeclaration,
9315 cx: &mut ViewContext<Self>,
9316 ) -> Task<Result<Navigated>> {
9317 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9318 }
9319
9320 pub fn go_to_declaration_split(
9321 &mut self,
9322 _: &GoToDeclaration,
9323 cx: &mut ViewContext<Self>,
9324 ) -> Task<Result<Navigated>> {
9325 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9326 }
9327
9328 pub fn go_to_implementation(
9329 &mut self,
9330 _: &GoToImplementation,
9331 cx: &mut ViewContext<Self>,
9332 ) -> Task<Result<Navigated>> {
9333 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9334 }
9335
9336 pub fn go_to_implementation_split(
9337 &mut self,
9338 _: &GoToImplementationSplit,
9339 cx: &mut ViewContext<Self>,
9340 ) -> Task<Result<Navigated>> {
9341 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9342 }
9343
9344 pub fn go_to_type_definition(
9345 &mut self,
9346 _: &GoToTypeDefinition,
9347 cx: &mut ViewContext<Self>,
9348 ) -> Task<Result<Navigated>> {
9349 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9350 }
9351
9352 pub fn go_to_definition_split(
9353 &mut self,
9354 _: &GoToDefinitionSplit,
9355 cx: &mut ViewContext<Self>,
9356 ) -> Task<Result<Navigated>> {
9357 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9358 }
9359
9360 pub fn go_to_type_definition_split(
9361 &mut self,
9362 _: &GoToTypeDefinitionSplit,
9363 cx: &mut ViewContext<Self>,
9364 ) -> Task<Result<Navigated>> {
9365 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9366 }
9367
9368 fn go_to_definition_of_kind(
9369 &mut self,
9370 kind: GotoDefinitionKind,
9371 split: bool,
9372 cx: &mut ViewContext<Self>,
9373 ) -> Task<Result<Navigated>> {
9374 let Some(provider) = self.semantics_provider.clone() else {
9375 return Task::ready(Ok(Navigated::No));
9376 };
9377 let head = self.selections.newest::<usize>(cx).head();
9378 let buffer = self.buffer.read(cx);
9379 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9380 text_anchor
9381 } else {
9382 return Task::ready(Ok(Navigated::No));
9383 };
9384
9385 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9386 return Task::ready(Ok(Navigated::No));
9387 };
9388
9389 cx.spawn(|editor, mut cx| async move {
9390 let definitions = definitions.await?;
9391 let navigated = editor
9392 .update(&mut cx, |editor, cx| {
9393 editor.navigate_to_hover_links(
9394 Some(kind),
9395 definitions
9396 .into_iter()
9397 .filter(|location| {
9398 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9399 })
9400 .map(HoverLink::Text)
9401 .collect::<Vec<_>>(),
9402 split,
9403 cx,
9404 )
9405 })?
9406 .await?;
9407 anyhow::Ok(navigated)
9408 })
9409 }
9410
9411 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9412 let selection = self.selections.newest_anchor();
9413 let head = selection.head();
9414 let tail = selection.tail();
9415
9416 let Some((buffer, start_position)) =
9417 self.buffer.read(cx).text_anchor_for_position(head, cx)
9418 else {
9419 return;
9420 };
9421
9422 let end_position = if head != tail {
9423 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9424 return;
9425 };
9426 Some(pos)
9427 } else {
9428 None
9429 };
9430
9431 let url_finder = cx.spawn(|editor, mut cx| async move {
9432 let url = if let Some(end_pos) = end_position {
9433 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9434 } else {
9435 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9436 };
9437
9438 if let Some(url) = url {
9439 editor.update(&mut cx, |_, cx| {
9440 cx.open_url(&url);
9441 })
9442 } else {
9443 Ok(())
9444 }
9445 });
9446
9447 url_finder.detach();
9448 }
9449
9450 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9451 let Some(workspace) = self.workspace() else {
9452 return;
9453 };
9454
9455 let position = self.selections.newest_anchor().head();
9456
9457 let Some((buffer, buffer_position)) =
9458 self.buffer.read(cx).text_anchor_for_position(position, cx)
9459 else {
9460 return;
9461 };
9462
9463 let project = self.project.clone();
9464
9465 cx.spawn(|_, mut cx| async move {
9466 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9467
9468 if let Some((_, path)) = result {
9469 workspace
9470 .update(&mut cx, |workspace, cx| {
9471 workspace.open_resolved_path(path, cx)
9472 })?
9473 .await?;
9474 }
9475 anyhow::Ok(())
9476 })
9477 .detach();
9478 }
9479
9480 pub(crate) fn navigate_to_hover_links(
9481 &mut self,
9482 kind: Option<GotoDefinitionKind>,
9483 mut definitions: Vec<HoverLink>,
9484 split: bool,
9485 cx: &mut ViewContext<Editor>,
9486 ) -> Task<Result<Navigated>> {
9487 // If there is one definition, just open it directly
9488 if definitions.len() == 1 {
9489 let definition = definitions.pop().unwrap();
9490
9491 enum TargetTaskResult {
9492 Location(Option<Location>),
9493 AlreadyNavigated,
9494 }
9495
9496 let target_task = match definition {
9497 HoverLink::Text(link) => {
9498 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9499 }
9500 HoverLink::InlayHint(lsp_location, server_id) => {
9501 let computation = self.compute_target_location(lsp_location, server_id, cx);
9502 cx.background_executor().spawn(async move {
9503 let location = computation.await?;
9504 Ok(TargetTaskResult::Location(location))
9505 })
9506 }
9507 HoverLink::Url(url) => {
9508 cx.open_url(&url);
9509 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9510 }
9511 HoverLink::File(path) => {
9512 if let Some(workspace) = self.workspace() {
9513 cx.spawn(|_, mut cx| async move {
9514 workspace
9515 .update(&mut cx, |workspace, cx| {
9516 workspace.open_resolved_path(path, cx)
9517 })?
9518 .await
9519 .map(|_| TargetTaskResult::AlreadyNavigated)
9520 })
9521 } else {
9522 Task::ready(Ok(TargetTaskResult::Location(None)))
9523 }
9524 }
9525 };
9526 cx.spawn(|editor, mut cx| async move {
9527 let target = match target_task.await.context("target resolution task")? {
9528 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9529 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9530 TargetTaskResult::Location(Some(target)) => target,
9531 };
9532
9533 editor.update(&mut cx, |editor, cx| {
9534 let Some(workspace) = editor.workspace() else {
9535 return Navigated::No;
9536 };
9537 let pane = workspace.read(cx).active_pane().clone();
9538
9539 let range = target.range.to_offset(target.buffer.read(cx));
9540 let range = editor.range_for_match(&range);
9541
9542 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9543 let buffer = target.buffer.read(cx);
9544 let range = check_multiline_range(buffer, range);
9545 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9546 s.select_ranges([range]);
9547 });
9548 } else {
9549 cx.window_context().defer(move |cx| {
9550 let target_editor: View<Self> =
9551 workspace.update(cx, |workspace, cx| {
9552 let pane = if split {
9553 workspace.adjacent_pane(cx)
9554 } else {
9555 workspace.active_pane().clone()
9556 };
9557
9558 workspace.open_project_item(
9559 pane,
9560 target.buffer.clone(),
9561 true,
9562 true,
9563 cx,
9564 )
9565 });
9566 target_editor.update(cx, |target_editor, cx| {
9567 // When selecting a definition in a different buffer, disable the nav history
9568 // to avoid creating a history entry at the previous cursor location.
9569 pane.update(cx, |pane, _| pane.disable_history());
9570 let buffer = target.buffer.read(cx);
9571 let range = check_multiline_range(buffer, range);
9572 target_editor.change_selections(
9573 Some(Autoscroll::focused()),
9574 cx,
9575 |s| {
9576 s.select_ranges([range]);
9577 },
9578 );
9579 pane.update(cx, |pane, _| pane.enable_history());
9580 });
9581 });
9582 }
9583 Navigated::Yes
9584 })
9585 })
9586 } else if !definitions.is_empty() {
9587 cx.spawn(|editor, mut cx| async move {
9588 let (title, location_tasks, workspace) = editor
9589 .update(&mut cx, |editor, cx| {
9590 let tab_kind = match kind {
9591 Some(GotoDefinitionKind::Implementation) => "Implementations",
9592 _ => "Definitions",
9593 };
9594 let title = definitions
9595 .iter()
9596 .find_map(|definition| match definition {
9597 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9598 let buffer = origin.buffer.read(cx);
9599 format!(
9600 "{} for {}",
9601 tab_kind,
9602 buffer
9603 .text_for_range(origin.range.clone())
9604 .collect::<String>()
9605 )
9606 }),
9607 HoverLink::InlayHint(_, _) => None,
9608 HoverLink::Url(_) => None,
9609 HoverLink::File(_) => None,
9610 })
9611 .unwrap_or(tab_kind.to_string());
9612 let location_tasks = definitions
9613 .into_iter()
9614 .map(|definition| match definition {
9615 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9616 HoverLink::InlayHint(lsp_location, server_id) => {
9617 editor.compute_target_location(lsp_location, server_id, cx)
9618 }
9619 HoverLink::Url(_) => Task::ready(Ok(None)),
9620 HoverLink::File(_) => Task::ready(Ok(None)),
9621 })
9622 .collect::<Vec<_>>();
9623 (title, location_tasks, editor.workspace().clone())
9624 })
9625 .context("location tasks preparation")?;
9626
9627 let locations = future::join_all(location_tasks)
9628 .await
9629 .into_iter()
9630 .filter_map(|location| location.transpose())
9631 .collect::<Result<_>>()
9632 .context("location tasks")?;
9633
9634 let Some(workspace) = workspace else {
9635 return Ok(Navigated::No);
9636 };
9637 let opened = workspace
9638 .update(&mut cx, |workspace, cx| {
9639 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9640 })
9641 .ok();
9642
9643 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9644 })
9645 } else {
9646 Task::ready(Ok(Navigated::No))
9647 }
9648 }
9649
9650 fn compute_target_location(
9651 &self,
9652 lsp_location: lsp::Location,
9653 server_id: LanguageServerId,
9654 cx: &mut ViewContext<Self>,
9655 ) -> Task<anyhow::Result<Option<Location>>> {
9656 let Some(project) = self.project.clone() else {
9657 return Task::ready(Ok(None));
9658 };
9659
9660 cx.spawn(move |editor, mut cx| async move {
9661 let location_task = editor.update(&mut cx, |_, cx| {
9662 project.update(cx, |project, cx| {
9663 let language_server_name = project
9664 .language_server_statuses(cx)
9665 .find(|(id, _)| server_id == *id)
9666 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9667 language_server_name.map(|language_server_name| {
9668 project.open_local_buffer_via_lsp(
9669 lsp_location.uri.clone(),
9670 server_id,
9671 language_server_name,
9672 cx,
9673 )
9674 })
9675 })
9676 })?;
9677 let location = match location_task {
9678 Some(task) => Some({
9679 let target_buffer_handle = task.await.context("open local buffer")?;
9680 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9681 let target_start = target_buffer
9682 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9683 let target_end = target_buffer
9684 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9685 target_buffer.anchor_after(target_start)
9686 ..target_buffer.anchor_before(target_end)
9687 })?;
9688 Location {
9689 buffer: target_buffer_handle,
9690 range,
9691 }
9692 }),
9693 None => None,
9694 };
9695 Ok(location)
9696 })
9697 }
9698
9699 pub fn find_all_references(
9700 &mut self,
9701 _: &FindAllReferences,
9702 cx: &mut ViewContext<Self>,
9703 ) -> Option<Task<Result<Navigated>>> {
9704 let selection = self.selections.newest::<usize>(cx);
9705 let multi_buffer = self.buffer.read(cx);
9706 let head = selection.head();
9707
9708 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9709 let head_anchor = multi_buffer_snapshot.anchor_at(
9710 head,
9711 if head < selection.tail() {
9712 Bias::Right
9713 } else {
9714 Bias::Left
9715 },
9716 );
9717
9718 match self
9719 .find_all_references_task_sources
9720 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9721 {
9722 Ok(_) => {
9723 log::info!(
9724 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9725 );
9726 return None;
9727 }
9728 Err(i) => {
9729 self.find_all_references_task_sources.insert(i, head_anchor);
9730 }
9731 }
9732
9733 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9734 let workspace = self.workspace()?;
9735 let project = workspace.read(cx).project().clone();
9736 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9737 Some(cx.spawn(|editor, mut cx| async move {
9738 let _cleanup = defer({
9739 let mut cx = cx.clone();
9740 move || {
9741 let _ = editor.update(&mut cx, |editor, _| {
9742 if let Ok(i) =
9743 editor
9744 .find_all_references_task_sources
9745 .binary_search_by(|anchor| {
9746 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9747 })
9748 {
9749 editor.find_all_references_task_sources.remove(i);
9750 }
9751 });
9752 }
9753 });
9754
9755 let locations = references.await?;
9756 if locations.is_empty() {
9757 return anyhow::Ok(Navigated::No);
9758 }
9759
9760 workspace.update(&mut cx, |workspace, cx| {
9761 let title = locations
9762 .first()
9763 .as_ref()
9764 .map(|location| {
9765 let buffer = location.buffer.read(cx);
9766 format!(
9767 "References to `{}`",
9768 buffer
9769 .text_for_range(location.range.clone())
9770 .collect::<String>()
9771 )
9772 })
9773 .unwrap();
9774 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9775 Navigated::Yes
9776 })
9777 }))
9778 }
9779
9780 /// Opens a multibuffer with the given project locations in it
9781 pub fn open_locations_in_multibuffer(
9782 workspace: &mut Workspace,
9783 mut locations: Vec<Location>,
9784 title: String,
9785 split: bool,
9786 cx: &mut ViewContext<Workspace>,
9787 ) {
9788 // If there are multiple definitions, open them in a multibuffer
9789 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9790 let mut locations = locations.into_iter().peekable();
9791 let mut ranges_to_highlight = Vec::new();
9792 let capability = workspace.project().read(cx).capability();
9793
9794 let excerpt_buffer = cx.new_model(|cx| {
9795 let mut multibuffer = MultiBuffer::new(capability);
9796 while let Some(location) = locations.next() {
9797 let buffer = location.buffer.read(cx);
9798 let mut ranges_for_buffer = Vec::new();
9799 let range = location.range.to_offset(buffer);
9800 ranges_for_buffer.push(range.clone());
9801
9802 while let Some(next_location) = locations.peek() {
9803 if next_location.buffer == location.buffer {
9804 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9805 locations.next();
9806 } else {
9807 break;
9808 }
9809 }
9810
9811 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9812 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9813 location.buffer.clone(),
9814 ranges_for_buffer,
9815 DEFAULT_MULTIBUFFER_CONTEXT,
9816 cx,
9817 ))
9818 }
9819
9820 multibuffer.with_title(title)
9821 });
9822
9823 let editor = cx.new_view(|cx| {
9824 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9825 });
9826 editor.update(cx, |editor, cx| {
9827 if let Some(first_range) = ranges_to_highlight.first() {
9828 editor.change_selections(None, cx, |selections| {
9829 selections.clear_disjoint();
9830 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9831 });
9832 }
9833 editor.highlight_background::<Self>(
9834 &ranges_to_highlight,
9835 |theme| theme.editor_highlighted_line_background,
9836 cx,
9837 );
9838 editor.register_buffers_with_language_servers(cx);
9839 });
9840
9841 let item = Box::new(editor);
9842 let item_id = item.item_id();
9843
9844 if split {
9845 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9846 } else {
9847 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9848 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9849 pane.close_current_preview_item(cx)
9850 } else {
9851 None
9852 }
9853 });
9854 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9855 }
9856 workspace.active_pane().update(cx, |pane, cx| {
9857 pane.set_preview_item_id(Some(item_id), cx);
9858 });
9859 }
9860
9861 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9862 use language::ToOffset as _;
9863
9864 let provider = self.semantics_provider.clone()?;
9865 let selection = self.selections.newest_anchor().clone();
9866 let (cursor_buffer, cursor_buffer_position) = self
9867 .buffer
9868 .read(cx)
9869 .text_anchor_for_position(selection.head(), cx)?;
9870 let (tail_buffer, cursor_buffer_position_end) = self
9871 .buffer
9872 .read(cx)
9873 .text_anchor_for_position(selection.tail(), cx)?;
9874 if tail_buffer != cursor_buffer {
9875 return None;
9876 }
9877
9878 let snapshot = cursor_buffer.read(cx).snapshot();
9879 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9880 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9881 let prepare_rename = provider
9882 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9883 .unwrap_or_else(|| Task::ready(Ok(None)));
9884 drop(snapshot);
9885
9886 Some(cx.spawn(|this, mut cx| async move {
9887 let rename_range = if let Some(range) = prepare_rename.await? {
9888 Some(range)
9889 } else {
9890 this.update(&mut cx, |this, cx| {
9891 let buffer = this.buffer.read(cx).snapshot(cx);
9892 let mut buffer_highlights = this
9893 .document_highlights_for_position(selection.head(), &buffer)
9894 .filter(|highlight| {
9895 highlight.start.excerpt_id == selection.head().excerpt_id
9896 && highlight.end.excerpt_id == selection.head().excerpt_id
9897 });
9898 buffer_highlights
9899 .next()
9900 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9901 })?
9902 };
9903 if let Some(rename_range) = rename_range {
9904 this.update(&mut cx, |this, cx| {
9905 let snapshot = cursor_buffer.read(cx).snapshot();
9906 let rename_buffer_range = rename_range.to_offset(&snapshot);
9907 let cursor_offset_in_rename_range =
9908 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9909 let cursor_offset_in_rename_range_end =
9910 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9911
9912 this.take_rename(false, cx);
9913 let buffer = this.buffer.read(cx).read(cx);
9914 let cursor_offset = selection.head().to_offset(&buffer);
9915 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9916 let rename_end = rename_start + rename_buffer_range.len();
9917 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9918 let mut old_highlight_id = None;
9919 let old_name: Arc<str> = buffer
9920 .chunks(rename_start..rename_end, true)
9921 .map(|chunk| {
9922 if old_highlight_id.is_none() {
9923 old_highlight_id = chunk.syntax_highlight_id;
9924 }
9925 chunk.text
9926 })
9927 .collect::<String>()
9928 .into();
9929
9930 drop(buffer);
9931
9932 // Position the selection in the rename editor so that it matches the current selection.
9933 this.show_local_selections = false;
9934 let rename_editor = cx.new_view(|cx| {
9935 let mut editor = Editor::single_line(cx);
9936 editor.buffer.update(cx, |buffer, cx| {
9937 buffer.edit([(0..0, old_name.clone())], None, cx)
9938 });
9939 let rename_selection_range = match cursor_offset_in_rename_range
9940 .cmp(&cursor_offset_in_rename_range_end)
9941 {
9942 Ordering::Equal => {
9943 editor.select_all(&SelectAll, cx);
9944 return editor;
9945 }
9946 Ordering::Less => {
9947 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9948 }
9949 Ordering::Greater => {
9950 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9951 }
9952 };
9953 if rename_selection_range.end > old_name.len() {
9954 editor.select_all(&SelectAll, cx);
9955 } else {
9956 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9957 s.select_ranges([rename_selection_range]);
9958 });
9959 }
9960 editor
9961 });
9962 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9963 if e == &EditorEvent::Focused {
9964 cx.emit(EditorEvent::FocusedIn)
9965 }
9966 })
9967 .detach();
9968
9969 let write_highlights =
9970 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9971 let read_highlights =
9972 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9973 let ranges = write_highlights
9974 .iter()
9975 .flat_map(|(_, ranges)| ranges.iter())
9976 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9977 .cloned()
9978 .collect();
9979
9980 this.highlight_text::<Rename>(
9981 ranges,
9982 HighlightStyle {
9983 fade_out: Some(0.6),
9984 ..Default::default()
9985 },
9986 cx,
9987 );
9988 let rename_focus_handle = rename_editor.focus_handle(cx);
9989 cx.focus(&rename_focus_handle);
9990 let block_id = this.insert_blocks(
9991 [BlockProperties {
9992 style: BlockStyle::Flex,
9993 placement: BlockPlacement::Below(range.start),
9994 height: 1,
9995 render: Arc::new({
9996 let rename_editor = rename_editor.clone();
9997 move |cx: &mut BlockContext| {
9998 let mut text_style = cx.editor_style.text.clone();
9999 if let Some(highlight_style) = old_highlight_id
10000 .and_then(|h| h.style(&cx.editor_style.syntax))
10001 {
10002 text_style = text_style.highlight(highlight_style);
10003 }
10004 div()
10005 .block_mouse_down()
10006 .pl(cx.anchor_x)
10007 .child(EditorElement::new(
10008 &rename_editor,
10009 EditorStyle {
10010 background: cx.theme().system().transparent,
10011 local_player: cx.editor_style.local_player,
10012 text: text_style,
10013 scrollbar_width: cx.editor_style.scrollbar_width,
10014 syntax: cx.editor_style.syntax.clone(),
10015 status: cx.editor_style.status.clone(),
10016 inlay_hints_style: HighlightStyle {
10017 font_weight: Some(FontWeight::BOLD),
10018 ..make_inlay_hints_style(cx)
10019 },
10020 inline_completion_styles: make_suggestion_styles(
10021 cx,
10022 ),
10023 ..EditorStyle::default()
10024 },
10025 ))
10026 .into_any_element()
10027 }
10028 }),
10029 priority: 0,
10030 }],
10031 Some(Autoscroll::fit()),
10032 cx,
10033 )[0];
10034 this.pending_rename = Some(RenameState {
10035 range,
10036 old_name,
10037 editor: rename_editor,
10038 block_id,
10039 });
10040 })?;
10041 }
10042
10043 Ok(())
10044 }))
10045 }
10046
10047 pub fn confirm_rename(
10048 &mut self,
10049 _: &ConfirmRename,
10050 cx: &mut ViewContext<Self>,
10051 ) -> Option<Task<Result<()>>> {
10052 let rename = self.take_rename(false, cx)?;
10053 let workspace = self.workspace()?.downgrade();
10054 let (buffer, start) = self
10055 .buffer
10056 .read(cx)
10057 .text_anchor_for_position(rename.range.start, cx)?;
10058 let (end_buffer, _) = self
10059 .buffer
10060 .read(cx)
10061 .text_anchor_for_position(rename.range.end, cx)?;
10062 if buffer != end_buffer {
10063 return None;
10064 }
10065
10066 let old_name = rename.old_name;
10067 let new_name = rename.editor.read(cx).text(cx);
10068
10069 let rename = self.semantics_provider.as_ref()?.perform_rename(
10070 &buffer,
10071 start,
10072 new_name.clone(),
10073 cx,
10074 )?;
10075
10076 Some(cx.spawn(|editor, mut cx| async move {
10077 let project_transaction = rename.await?;
10078 Self::open_project_transaction(
10079 &editor,
10080 workspace,
10081 project_transaction,
10082 format!("Rename: {} → {}", old_name, new_name),
10083 cx.clone(),
10084 )
10085 .await?;
10086
10087 editor.update(&mut cx, |editor, cx| {
10088 editor.refresh_document_highlights(cx);
10089 })?;
10090 Ok(())
10091 }))
10092 }
10093
10094 fn take_rename(
10095 &mut self,
10096 moving_cursor: bool,
10097 cx: &mut ViewContext<Self>,
10098 ) -> Option<RenameState> {
10099 let rename = self.pending_rename.take()?;
10100 if rename.editor.focus_handle(cx).is_focused(cx) {
10101 cx.focus(&self.focus_handle);
10102 }
10103
10104 self.remove_blocks(
10105 [rename.block_id].into_iter().collect(),
10106 Some(Autoscroll::fit()),
10107 cx,
10108 );
10109 self.clear_highlights::<Rename>(cx);
10110 self.show_local_selections = true;
10111
10112 if moving_cursor {
10113 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10114 editor.selections.newest::<usize>(cx).head()
10115 });
10116
10117 // Update the selection to match the position of the selection inside
10118 // the rename editor.
10119 let snapshot = self.buffer.read(cx).read(cx);
10120 let rename_range = rename.range.to_offset(&snapshot);
10121 let cursor_in_editor = snapshot
10122 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10123 .min(rename_range.end);
10124 drop(snapshot);
10125
10126 self.change_selections(None, cx, |s| {
10127 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10128 });
10129 } else {
10130 self.refresh_document_highlights(cx);
10131 }
10132
10133 Some(rename)
10134 }
10135
10136 pub fn pending_rename(&self) -> Option<&RenameState> {
10137 self.pending_rename.as_ref()
10138 }
10139
10140 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10141 let project = match &self.project {
10142 Some(project) => project.clone(),
10143 None => return None,
10144 };
10145
10146 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10147 }
10148
10149 fn format_selections(
10150 &mut self,
10151 _: &FormatSelections,
10152 cx: &mut ViewContext<Self>,
10153 ) -> Option<Task<Result<()>>> {
10154 let project = match &self.project {
10155 Some(project) => project.clone(),
10156 None => return None,
10157 };
10158
10159 let selections = self
10160 .selections
10161 .all_adjusted(cx)
10162 .into_iter()
10163 .filter(|s| !s.is_empty())
10164 .collect_vec();
10165
10166 Some(self.perform_format(
10167 project,
10168 FormatTrigger::Manual,
10169 FormatTarget::Ranges(selections),
10170 cx,
10171 ))
10172 }
10173
10174 fn perform_format(
10175 &mut self,
10176 project: Model<Project>,
10177 trigger: FormatTrigger,
10178 target: FormatTarget,
10179 cx: &mut ViewContext<Self>,
10180 ) -> Task<Result<()>> {
10181 let buffer = self.buffer().clone();
10182 let mut buffers = buffer.read(cx).all_buffers();
10183 if trigger == FormatTrigger::Save {
10184 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10185 }
10186
10187 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10188 let format = project.update(cx, |project, cx| {
10189 project.format(buffers, true, trigger, target, cx)
10190 });
10191
10192 cx.spawn(|_, mut cx| async move {
10193 let transaction = futures::select_biased! {
10194 () = timeout => {
10195 log::warn!("timed out waiting for formatting");
10196 None
10197 }
10198 transaction = format.log_err().fuse() => transaction,
10199 };
10200
10201 buffer
10202 .update(&mut cx, |buffer, cx| {
10203 if let Some(transaction) = transaction {
10204 if !buffer.is_singleton() {
10205 buffer.push_transaction(&transaction.0, cx);
10206 }
10207 }
10208
10209 cx.notify();
10210 })
10211 .ok();
10212
10213 Ok(())
10214 })
10215 }
10216
10217 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10218 if let Some(project) = self.project.clone() {
10219 self.buffer.update(cx, |multi_buffer, cx| {
10220 project.update(cx, |project, cx| {
10221 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10222 });
10223 })
10224 }
10225 }
10226
10227 fn cancel_language_server_work(
10228 &mut self,
10229 _: &actions::CancelLanguageServerWork,
10230 cx: &mut ViewContext<Self>,
10231 ) {
10232 if let Some(project) = self.project.clone() {
10233 self.buffer.update(cx, |multi_buffer, cx| {
10234 project.update(cx, |project, cx| {
10235 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10236 });
10237 })
10238 }
10239 }
10240
10241 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10242 cx.show_character_palette();
10243 }
10244
10245 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10246 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10247 let buffer = self.buffer.read(cx).snapshot(cx);
10248 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10249 let is_valid = buffer
10250 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10251 .any(|entry| {
10252 entry.diagnostic.is_primary
10253 && !entry.range.is_empty()
10254 && entry.range.start == primary_range_start
10255 && entry.diagnostic.message == active_diagnostics.primary_message
10256 });
10257
10258 if is_valid != active_diagnostics.is_valid {
10259 active_diagnostics.is_valid = is_valid;
10260 let mut new_styles = HashMap::default();
10261 for (block_id, diagnostic) in &active_diagnostics.blocks {
10262 new_styles.insert(
10263 *block_id,
10264 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10265 );
10266 }
10267 self.display_map.update(cx, |display_map, _cx| {
10268 display_map.replace_blocks(new_styles)
10269 });
10270 }
10271 }
10272 }
10273
10274 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10275 self.dismiss_diagnostics(cx);
10276 let snapshot = self.snapshot(cx);
10277 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10278 let buffer = self.buffer.read(cx).snapshot(cx);
10279
10280 let mut primary_range = None;
10281 let mut primary_message = None;
10282 let mut group_end = Point::zero();
10283 let diagnostic_group = buffer
10284 .diagnostic_group::<MultiBufferPoint>(group_id)
10285 .filter_map(|entry| {
10286 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10287 && (entry.range.start.row == entry.range.end.row
10288 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10289 {
10290 return None;
10291 }
10292 if entry.range.end > group_end {
10293 group_end = entry.range.end;
10294 }
10295 if entry.diagnostic.is_primary {
10296 primary_range = Some(entry.range.clone());
10297 primary_message = Some(entry.diagnostic.message.clone());
10298 }
10299 Some(entry)
10300 })
10301 .collect::<Vec<_>>();
10302 let primary_range = primary_range?;
10303 let primary_message = primary_message?;
10304 let primary_range =
10305 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10306
10307 let blocks = display_map
10308 .insert_blocks(
10309 diagnostic_group.iter().map(|entry| {
10310 let diagnostic = entry.diagnostic.clone();
10311 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10312 BlockProperties {
10313 style: BlockStyle::Fixed,
10314 placement: BlockPlacement::Below(
10315 buffer.anchor_after(entry.range.start),
10316 ),
10317 height: message_height,
10318 render: diagnostic_block_renderer(diagnostic, None, true, true),
10319 priority: 0,
10320 }
10321 }),
10322 cx,
10323 )
10324 .into_iter()
10325 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10326 .collect();
10327
10328 Some(ActiveDiagnosticGroup {
10329 primary_range,
10330 primary_message,
10331 group_id,
10332 blocks,
10333 is_valid: true,
10334 })
10335 });
10336 self.active_diagnostics.is_some()
10337 }
10338
10339 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10340 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10341 self.display_map.update(cx, |display_map, cx| {
10342 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10343 });
10344 cx.notify();
10345 }
10346 }
10347
10348 pub fn set_selections_from_remote(
10349 &mut self,
10350 selections: Vec<Selection<Anchor>>,
10351 pending_selection: Option<Selection<Anchor>>,
10352 cx: &mut ViewContext<Self>,
10353 ) {
10354 let old_cursor_position = self.selections.newest_anchor().head();
10355 self.selections.change_with(cx, |s| {
10356 s.select_anchors(selections);
10357 if let Some(pending_selection) = pending_selection {
10358 s.set_pending(pending_selection, SelectMode::Character);
10359 } else {
10360 s.clear_pending();
10361 }
10362 });
10363 self.selections_did_change(false, &old_cursor_position, true, cx);
10364 }
10365
10366 fn push_to_selection_history(&mut self) {
10367 self.selection_history.push(SelectionHistoryEntry {
10368 selections: self.selections.disjoint_anchors(),
10369 select_next_state: self.select_next_state.clone(),
10370 select_prev_state: self.select_prev_state.clone(),
10371 add_selections_state: self.add_selections_state.clone(),
10372 });
10373 }
10374
10375 pub fn transact(
10376 &mut self,
10377 cx: &mut ViewContext<Self>,
10378 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10379 ) -> Option<TransactionId> {
10380 self.start_transaction_at(Instant::now(), cx);
10381 update(self, cx);
10382 self.end_transaction_at(Instant::now(), cx)
10383 }
10384
10385 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10386 self.end_selection(cx);
10387 if let Some(tx_id) = self
10388 .buffer
10389 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10390 {
10391 self.selection_history
10392 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10393 cx.emit(EditorEvent::TransactionBegun {
10394 transaction_id: tx_id,
10395 })
10396 }
10397 }
10398
10399 fn end_transaction_at(
10400 &mut self,
10401 now: Instant,
10402 cx: &mut ViewContext<Self>,
10403 ) -> Option<TransactionId> {
10404 if let Some(transaction_id) = self
10405 .buffer
10406 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10407 {
10408 if let Some((_, end_selections)) =
10409 self.selection_history.transaction_mut(transaction_id)
10410 {
10411 *end_selections = Some(self.selections.disjoint_anchors());
10412 } else {
10413 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10414 }
10415
10416 cx.emit(EditorEvent::Edited { transaction_id });
10417 Some(transaction_id)
10418 } else {
10419 None
10420 }
10421 }
10422
10423 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10424 if self.is_singleton(cx) {
10425 let selection = self.selections.newest::<Point>(cx);
10426
10427 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10428 let range = if selection.is_empty() {
10429 let point = selection.head().to_display_point(&display_map);
10430 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10431 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10432 .to_point(&display_map);
10433 start..end
10434 } else {
10435 selection.range()
10436 };
10437 if display_map.folds_in_range(range).next().is_some() {
10438 self.unfold_lines(&Default::default(), cx)
10439 } else {
10440 self.fold(&Default::default(), cx)
10441 }
10442 } else {
10443 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10444 let mut toggled_buffers = HashSet::default();
10445 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10446 self.selections
10447 .disjoint_anchors()
10448 .into_iter()
10449 .map(|selection| selection.range()),
10450 ) {
10451 let buffer_id = buffer_snapshot.remote_id();
10452 if toggled_buffers.insert(buffer_id) {
10453 if self.buffer_folded(buffer_id, cx) {
10454 self.unfold_buffer(buffer_id, cx);
10455 } else {
10456 self.fold_buffer(buffer_id, cx);
10457 }
10458 }
10459 }
10460 }
10461 }
10462
10463 pub fn toggle_fold_recursive(
10464 &mut self,
10465 _: &actions::ToggleFoldRecursive,
10466 cx: &mut ViewContext<Self>,
10467 ) {
10468 let selection = self.selections.newest::<Point>(cx);
10469
10470 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10471 let range = if selection.is_empty() {
10472 let point = selection.head().to_display_point(&display_map);
10473 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10474 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10475 .to_point(&display_map);
10476 start..end
10477 } else {
10478 selection.range()
10479 };
10480 if display_map.folds_in_range(range).next().is_some() {
10481 self.unfold_recursive(&Default::default(), cx)
10482 } else {
10483 self.fold_recursive(&Default::default(), cx)
10484 }
10485 }
10486
10487 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10488 if self.is_singleton(cx) {
10489 let mut to_fold = Vec::new();
10490 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10491 let selections = self.selections.all_adjusted(cx);
10492
10493 for selection in selections {
10494 let range = selection.range().sorted();
10495 let buffer_start_row = range.start.row;
10496
10497 if range.start.row != range.end.row {
10498 let mut found = false;
10499 let mut row = range.start.row;
10500 while row <= range.end.row {
10501 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10502 {
10503 found = true;
10504 row = crease.range().end.row + 1;
10505 to_fold.push(crease);
10506 } else {
10507 row += 1
10508 }
10509 }
10510 if found {
10511 continue;
10512 }
10513 }
10514
10515 for row in (0..=range.start.row).rev() {
10516 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10517 if crease.range().end.row >= buffer_start_row {
10518 to_fold.push(crease);
10519 if row <= range.start.row {
10520 break;
10521 }
10522 }
10523 }
10524 }
10525 }
10526
10527 self.fold_creases(to_fold, true, cx);
10528 } else {
10529 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10530 let mut folded_buffers = HashSet::default();
10531 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10532 self.selections
10533 .disjoint_anchors()
10534 .into_iter()
10535 .map(|selection| selection.range()),
10536 ) {
10537 let buffer_id = buffer_snapshot.remote_id();
10538 if folded_buffers.insert(buffer_id) {
10539 self.fold_buffer(buffer_id, cx);
10540 }
10541 }
10542 }
10543 }
10544
10545 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10546 if !self.buffer.read(cx).is_singleton() {
10547 return;
10548 }
10549
10550 let fold_at_level = fold_at.level;
10551 let snapshot = self.buffer.read(cx).snapshot(cx);
10552 let mut to_fold = Vec::new();
10553 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10554
10555 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10556 while start_row < end_row {
10557 match self
10558 .snapshot(cx)
10559 .crease_for_buffer_row(MultiBufferRow(start_row))
10560 {
10561 Some(crease) => {
10562 let nested_start_row = crease.range().start.row + 1;
10563 let nested_end_row = crease.range().end.row;
10564
10565 if current_level < fold_at_level {
10566 stack.push((nested_start_row, nested_end_row, current_level + 1));
10567 } else if current_level == fold_at_level {
10568 to_fold.push(crease);
10569 }
10570
10571 start_row = nested_end_row + 1;
10572 }
10573 None => start_row += 1,
10574 }
10575 }
10576 }
10577
10578 self.fold_creases(to_fold, true, cx);
10579 }
10580
10581 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10582 if self.buffer.read(cx).is_singleton() {
10583 let mut fold_ranges = Vec::new();
10584 let snapshot = self.buffer.read(cx).snapshot(cx);
10585
10586 for row in 0..snapshot.max_row().0 {
10587 if let Some(foldable_range) =
10588 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10589 {
10590 fold_ranges.push(foldable_range);
10591 }
10592 }
10593
10594 self.fold_creases(fold_ranges, true, cx);
10595 } else {
10596 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10597 editor
10598 .update(&mut cx, |editor, cx| {
10599 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10600 editor.fold_buffer(buffer_id, cx);
10601 }
10602 })
10603 .ok();
10604 });
10605 }
10606 }
10607
10608 pub fn fold_function_bodies(
10609 &mut self,
10610 _: &actions::FoldFunctionBodies,
10611 cx: &mut ViewContext<Self>,
10612 ) {
10613 let snapshot = self.buffer.read(cx).snapshot(cx);
10614 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10615 return;
10616 };
10617 let creases = buffer
10618 .function_body_fold_ranges(0..buffer.len())
10619 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10620 .collect();
10621
10622 self.fold_creases(creases, true, cx);
10623 }
10624
10625 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10626 let mut to_fold = Vec::new();
10627 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10628 let selections = self.selections.all_adjusted(cx);
10629
10630 for selection in selections {
10631 let range = selection.range().sorted();
10632 let buffer_start_row = range.start.row;
10633
10634 if range.start.row != range.end.row {
10635 let mut found = false;
10636 for row in range.start.row..=range.end.row {
10637 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10638 found = true;
10639 to_fold.push(crease);
10640 }
10641 }
10642 if found {
10643 continue;
10644 }
10645 }
10646
10647 for row in (0..=range.start.row).rev() {
10648 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10649 if crease.range().end.row >= buffer_start_row {
10650 to_fold.push(crease);
10651 } else {
10652 break;
10653 }
10654 }
10655 }
10656 }
10657
10658 self.fold_creases(to_fold, true, cx);
10659 }
10660
10661 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10662 let buffer_row = fold_at.buffer_row;
10663 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10664
10665 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10666 let autoscroll = self
10667 .selections
10668 .all::<Point>(cx)
10669 .iter()
10670 .any(|selection| crease.range().overlaps(&selection.range()));
10671
10672 self.fold_creases(vec![crease], autoscroll, cx);
10673 }
10674 }
10675
10676 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10677 if self.is_singleton(cx) {
10678 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10679 let buffer = &display_map.buffer_snapshot;
10680 let selections = self.selections.all::<Point>(cx);
10681 let ranges = selections
10682 .iter()
10683 .map(|s| {
10684 let range = s.display_range(&display_map).sorted();
10685 let mut start = range.start.to_point(&display_map);
10686 let mut end = range.end.to_point(&display_map);
10687 start.column = 0;
10688 end.column = buffer.line_len(MultiBufferRow(end.row));
10689 start..end
10690 })
10691 .collect::<Vec<_>>();
10692
10693 self.unfold_ranges(&ranges, true, true, cx);
10694 } else {
10695 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10696 let mut unfolded_buffers = HashSet::default();
10697 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10698 self.selections
10699 .disjoint_anchors()
10700 .into_iter()
10701 .map(|selection| selection.range()),
10702 ) {
10703 let buffer_id = buffer_snapshot.remote_id();
10704 if unfolded_buffers.insert(buffer_id) {
10705 self.unfold_buffer(buffer_id, cx);
10706 }
10707 }
10708 }
10709 }
10710
10711 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10712 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10713 let selections = self.selections.all::<Point>(cx);
10714 let ranges = selections
10715 .iter()
10716 .map(|s| {
10717 let mut range = s.display_range(&display_map).sorted();
10718 *range.start.column_mut() = 0;
10719 *range.end.column_mut() = display_map.line_len(range.end.row());
10720 let start = range.start.to_point(&display_map);
10721 let end = range.end.to_point(&display_map);
10722 start..end
10723 })
10724 .collect::<Vec<_>>();
10725
10726 self.unfold_ranges(&ranges, true, true, cx);
10727 }
10728
10729 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10730 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10731
10732 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10733 ..Point::new(
10734 unfold_at.buffer_row.0,
10735 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10736 );
10737
10738 let autoscroll = self
10739 .selections
10740 .all::<Point>(cx)
10741 .iter()
10742 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10743
10744 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10745 }
10746
10747 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10748 if self.buffer.read(cx).is_singleton() {
10749 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10750 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10751 } else {
10752 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10753 editor
10754 .update(&mut cx, |editor, cx| {
10755 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10756 editor.unfold_buffer(buffer_id, cx);
10757 }
10758 })
10759 .ok();
10760 });
10761 }
10762 }
10763
10764 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10765 let selections = self.selections.all::<Point>(cx);
10766 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10767 let line_mode = self.selections.line_mode;
10768 let ranges = selections
10769 .into_iter()
10770 .map(|s| {
10771 if line_mode {
10772 let start = Point::new(s.start.row, 0);
10773 let end = Point::new(
10774 s.end.row,
10775 display_map
10776 .buffer_snapshot
10777 .line_len(MultiBufferRow(s.end.row)),
10778 );
10779 Crease::simple(start..end, display_map.fold_placeholder.clone())
10780 } else {
10781 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10782 }
10783 })
10784 .collect::<Vec<_>>();
10785 self.fold_creases(ranges, true, cx);
10786 }
10787
10788 pub fn fold_creases<T: ToOffset + Clone>(
10789 &mut self,
10790 creases: Vec<Crease<T>>,
10791 auto_scroll: bool,
10792 cx: &mut ViewContext<Self>,
10793 ) {
10794 if creases.is_empty() {
10795 return;
10796 }
10797
10798 let mut buffers_affected = HashSet::default();
10799 let multi_buffer = self.buffer().read(cx);
10800 for crease in &creases {
10801 if let Some((_, buffer, _)) =
10802 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10803 {
10804 buffers_affected.insert(buffer.read(cx).remote_id());
10805 };
10806 }
10807
10808 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10809
10810 if auto_scroll {
10811 self.request_autoscroll(Autoscroll::fit(), cx);
10812 }
10813
10814 for buffer_id in buffers_affected {
10815 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10816 }
10817
10818 cx.notify();
10819
10820 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10821 // Clear diagnostics block when folding a range that contains it.
10822 let snapshot = self.snapshot(cx);
10823 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10824 drop(snapshot);
10825 self.active_diagnostics = Some(active_diagnostics);
10826 self.dismiss_diagnostics(cx);
10827 } else {
10828 self.active_diagnostics = Some(active_diagnostics);
10829 }
10830 }
10831
10832 self.scrollbar_marker_state.dirty = true;
10833 }
10834
10835 /// Removes any folds whose ranges intersect any of the given ranges.
10836 pub fn unfold_ranges<T: ToOffset + Clone>(
10837 &mut self,
10838 ranges: &[Range<T>],
10839 inclusive: bool,
10840 auto_scroll: bool,
10841 cx: &mut ViewContext<Self>,
10842 ) {
10843 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10844 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10845 });
10846 }
10847
10848 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10849 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10850 return;
10851 }
10852 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10853 return;
10854 };
10855 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10856 self.display_map
10857 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10858 cx.emit(EditorEvent::BufferFoldToggled {
10859 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10860 folded: true,
10861 });
10862 cx.notify();
10863 }
10864
10865 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10866 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10867 return;
10868 }
10869 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10870 return;
10871 };
10872 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10873 self.display_map.update(cx, |display_map, cx| {
10874 display_map.unfold_buffer(buffer_id, cx);
10875 });
10876 cx.emit(EditorEvent::BufferFoldToggled {
10877 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10878 folded: false,
10879 });
10880 cx.notify();
10881 }
10882
10883 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10884 self.display_map.read(cx).buffer_folded(buffer)
10885 }
10886
10887 /// Removes any folds with the given ranges.
10888 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10889 &mut self,
10890 ranges: &[Range<T>],
10891 type_id: TypeId,
10892 auto_scroll: bool,
10893 cx: &mut ViewContext<Self>,
10894 ) {
10895 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10896 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10897 });
10898 }
10899
10900 fn remove_folds_with<T: ToOffset + Clone>(
10901 &mut self,
10902 ranges: &[Range<T>],
10903 auto_scroll: bool,
10904 cx: &mut ViewContext<Self>,
10905 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10906 ) {
10907 if ranges.is_empty() {
10908 return;
10909 }
10910
10911 let mut buffers_affected = HashSet::default();
10912 let multi_buffer = self.buffer().read(cx);
10913 for range in ranges {
10914 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10915 buffers_affected.insert(buffer.read(cx).remote_id());
10916 };
10917 }
10918
10919 self.display_map.update(cx, update);
10920
10921 if auto_scroll {
10922 self.request_autoscroll(Autoscroll::fit(), cx);
10923 }
10924
10925 for buffer_id in buffers_affected {
10926 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10927 }
10928
10929 cx.notify();
10930 self.scrollbar_marker_state.dirty = true;
10931 self.active_indent_guides_state.dirty = true;
10932 }
10933
10934 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10935 self.display_map.read(cx).fold_placeholder.clone()
10936 }
10937
10938 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10939 if hovered != self.gutter_hovered {
10940 self.gutter_hovered = hovered;
10941 cx.notify();
10942 }
10943 }
10944
10945 pub fn insert_blocks(
10946 &mut self,
10947 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10948 autoscroll: Option<Autoscroll>,
10949 cx: &mut ViewContext<Self>,
10950 ) -> Vec<CustomBlockId> {
10951 let blocks = self
10952 .display_map
10953 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10954 if let Some(autoscroll) = autoscroll {
10955 self.request_autoscroll(autoscroll, cx);
10956 }
10957 cx.notify();
10958 blocks
10959 }
10960
10961 pub fn resize_blocks(
10962 &mut self,
10963 heights: HashMap<CustomBlockId, u32>,
10964 autoscroll: Option<Autoscroll>,
10965 cx: &mut ViewContext<Self>,
10966 ) {
10967 self.display_map
10968 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10969 if let Some(autoscroll) = autoscroll {
10970 self.request_autoscroll(autoscroll, cx);
10971 }
10972 cx.notify();
10973 }
10974
10975 pub fn replace_blocks(
10976 &mut self,
10977 renderers: HashMap<CustomBlockId, RenderBlock>,
10978 autoscroll: Option<Autoscroll>,
10979 cx: &mut ViewContext<Self>,
10980 ) {
10981 self.display_map
10982 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10983 if let Some(autoscroll) = autoscroll {
10984 self.request_autoscroll(autoscroll, cx);
10985 }
10986 cx.notify();
10987 }
10988
10989 pub fn remove_blocks(
10990 &mut self,
10991 block_ids: HashSet<CustomBlockId>,
10992 autoscroll: Option<Autoscroll>,
10993 cx: &mut ViewContext<Self>,
10994 ) {
10995 self.display_map.update(cx, |display_map, cx| {
10996 display_map.remove_blocks(block_ids, cx)
10997 });
10998 if let Some(autoscroll) = autoscroll {
10999 self.request_autoscroll(autoscroll, cx);
11000 }
11001 cx.notify();
11002 }
11003
11004 pub fn row_for_block(
11005 &self,
11006 block_id: CustomBlockId,
11007 cx: &mut ViewContext<Self>,
11008 ) -> Option<DisplayRow> {
11009 self.display_map
11010 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11011 }
11012
11013 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11014 self.focused_block = Some(focused_block);
11015 }
11016
11017 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11018 self.focused_block.take()
11019 }
11020
11021 pub fn insert_creases(
11022 &mut self,
11023 creases: impl IntoIterator<Item = Crease<Anchor>>,
11024 cx: &mut ViewContext<Self>,
11025 ) -> Vec<CreaseId> {
11026 self.display_map
11027 .update(cx, |map, cx| map.insert_creases(creases, cx))
11028 }
11029
11030 pub fn remove_creases(
11031 &mut self,
11032 ids: impl IntoIterator<Item = CreaseId>,
11033 cx: &mut ViewContext<Self>,
11034 ) {
11035 self.display_map
11036 .update(cx, |map, cx| map.remove_creases(ids, cx));
11037 }
11038
11039 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11040 self.display_map
11041 .update(cx, |map, cx| map.snapshot(cx))
11042 .longest_row()
11043 }
11044
11045 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11046 self.display_map
11047 .update(cx, |map, cx| map.snapshot(cx))
11048 .max_point()
11049 }
11050
11051 pub fn text(&self, cx: &AppContext) -> String {
11052 self.buffer.read(cx).read(cx).text()
11053 }
11054
11055 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11056 let text = self.text(cx);
11057 let text = text.trim();
11058
11059 if text.is_empty() {
11060 return None;
11061 }
11062
11063 Some(text.to_string())
11064 }
11065
11066 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11067 self.transact(cx, |this, cx| {
11068 this.buffer
11069 .read(cx)
11070 .as_singleton()
11071 .expect("you can only call set_text on editors for singleton buffers")
11072 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11073 });
11074 }
11075
11076 pub fn display_text(&self, cx: &mut AppContext) -> String {
11077 self.display_map
11078 .update(cx, |map, cx| map.snapshot(cx))
11079 .text()
11080 }
11081
11082 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11083 let mut wrap_guides = smallvec::smallvec![];
11084
11085 if self.show_wrap_guides == Some(false) {
11086 return wrap_guides;
11087 }
11088
11089 let settings = self.buffer.read(cx).settings_at(0, cx);
11090 if settings.show_wrap_guides {
11091 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11092 wrap_guides.push((soft_wrap as usize, true));
11093 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11094 wrap_guides.push((soft_wrap as usize, true));
11095 }
11096 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11097 }
11098
11099 wrap_guides
11100 }
11101
11102 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11103 let settings = self.buffer.read(cx).settings_at(0, cx);
11104 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11105 match mode {
11106 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11107 SoftWrap::None
11108 }
11109 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11110 language_settings::SoftWrap::PreferredLineLength => {
11111 SoftWrap::Column(settings.preferred_line_length)
11112 }
11113 language_settings::SoftWrap::Bounded => {
11114 SoftWrap::Bounded(settings.preferred_line_length)
11115 }
11116 }
11117 }
11118
11119 pub fn set_soft_wrap_mode(
11120 &mut self,
11121 mode: language_settings::SoftWrap,
11122 cx: &mut ViewContext<Self>,
11123 ) {
11124 self.soft_wrap_mode_override = Some(mode);
11125 cx.notify();
11126 }
11127
11128 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11129 self.text_style_refinement = Some(style);
11130 }
11131
11132 /// called by the Element so we know what style we were most recently rendered with.
11133 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11134 let rem_size = cx.rem_size();
11135 self.display_map.update(cx, |map, cx| {
11136 map.set_font(
11137 style.text.font(),
11138 style.text.font_size.to_pixels(rem_size),
11139 cx,
11140 )
11141 });
11142 self.style = Some(style);
11143 }
11144
11145 pub fn style(&self) -> Option<&EditorStyle> {
11146 self.style.as_ref()
11147 }
11148
11149 // Called by the element. This method is not designed to be called outside of the editor
11150 // element's layout code because it does not notify when rewrapping is computed synchronously.
11151 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11152 self.display_map
11153 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11154 }
11155
11156 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11157 if self.soft_wrap_mode_override.is_some() {
11158 self.soft_wrap_mode_override.take();
11159 } else {
11160 let soft_wrap = match self.soft_wrap_mode(cx) {
11161 SoftWrap::GitDiff => return,
11162 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11163 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11164 language_settings::SoftWrap::None
11165 }
11166 };
11167 self.soft_wrap_mode_override = Some(soft_wrap);
11168 }
11169 cx.notify();
11170 }
11171
11172 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11173 let Some(workspace) = self.workspace() else {
11174 return;
11175 };
11176 let fs = workspace.read(cx).app_state().fs.clone();
11177 let current_show = TabBarSettings::get_global(cx).show;
11178 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11179 setting.show = Some(!current_show);
11180 });
11181 }
11182
11183 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11184 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11185 self.buffer
11186 .read(cx)
11187 .settings_at(0, cx)
11188 .indent_guides
11189 .enabled
11190 });
11191 self.show_indent_guides = Some(!currently_enabled);
11192 cx.notify();
11193 }
11194
11195 fn should_show_indent_guides(&self) -> Option<bool> {
11196 self.show_indent_guides
11197 }
11198
11199 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11200 let mut editor_settings = EditorSettings::get_global(cx).clone();
11201 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11202 EditorSettings::override_global(editor_settings, cx);
11203 }
11204
11205 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11206 self.use_relative_line_numbers
11207 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11208 }
11209
11210 pub fn toggle_relative_line_numbers(
11211 &mut self,
11212 _: &ToggleRelativeLineNumbers,
11213 cx: &mut ViewContext<Self>,
11214 ) {
11215 let is_relative = self.should_use_relative_line_numbers(cx);
11216 self.set_relative_line_number(Some(!is_relative), cx)
11217 }
11218
11219 pub fn set_relative_line_number(
11220 &mut self,
11221 is_relative: Option<bool>,
11222 cx: &mut ViewContext<Self>,
11223 ) {
11224 self.use_relative_line_numbers = is_relative;
11225 cx.notify();
11226 }
11227
11228 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11229 self.show_gutter = show_gutter;
11230 cx.notify();
11231 }
11232
11233 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11234 self.show_line_numbers = Some(show_line_numbers);
11235 cx.notify();
11236 }
11237
11238 pub fn set_show_git_diff_gutter(
11239 &mut self,
11240 show_git_diff_gutter: bool,
11241 cx: &mut ViewContext<Self>,
11242 ) {
11243 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11244 cx.notify();
11245 }
11246
11247 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11248 self.show_code_actions = Some(show_code_actions);
11249 cx.notify();
11250 }
11251
11252 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11253 self.show_runnables = Some(show_runnables);
11254 cx.notify();
11255 }
11256
11257 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11258 if self.display_map.read(cx).masked != masked {
11259 self.display_map.update(cx, |map, _| map.masked = masked);
11260 }
11261 cx.notify()
11262 }
11263
11264 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11265 self.show_wrap_guides = Some(show_wrap_guides);
11266 cx.notify();
11267 }
11268
11269 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11270 self.show_indent_guides = Some(show_indent_guides);
11271 cx.notify();
11272 }
11273
11274 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11275 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11276 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11277 if let Some(dir) = file.abs_path(cx).parent() {
11278 return Some(dir.to_owned());
11279 }
11280 }
11281
11282 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11283 return Some(project_path.path.to_path_buf());
11284 }
11285 }
11286
11287 None
11288 }
11289
11290 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11291 self.active_excerpt(cx)?
11292 .1
11293 .read(cx)
11294 .file()
11295 .and_then(|f| f.as_local())
11296 }
11297
11298 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11299 if let Some(target) = self.target_file(cx) {
11300 cx.reveal_path(&target.abs_path(cx));
11301 }
11302 }
11303
11304 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11305 if let Some(file) = self.target_file(cx) {
11306 if let Some(path) = file.abs_path(cx).to_str() {
11307 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11308 }
11309 }
11310 }
11311
11312 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11313 if let Some(file) = self.target_file(cx) {
11314 if let Some(path) = file.path().to_str() {
11315 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11316 }
11317 }
11318 }
11319
11320 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11321 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11322
11323 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11324 self.start_git_blame(true, cx);
11325 }
11326
11327 cx.notify();
11328 }
11329
11330 pub fn toggle_git_blame_inline(
11331 &mut self,
11332 _: &ToggleGitBlameInline,
11333 cx: &mut ViewContext<Self>,
11334 ) {
11335 self.toggle_git_blame_inline_internal(true, cx);
11336 cx.notify();
11337 }
11338
11339 pub fn git_blame_inline_enabled(&self) -> bool {
11340 self.git_blame_inline_enabled
11341 }
11342
11343 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11344 self.show_selection_menu = self
11345 .show_selection_menu
11346 .map(|show_selections_menu| !show_selections_menu)
11347 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11348
11349 cx.notify();
11350 }
11351
11352 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11353 self.show_selection_menu
11354 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11355 }
11356
11357 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11358 if let Some(project) = self.project.as_ref() {
11359 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11360 return;
11361 };
11362
11363 if buffer.read(cx).file().is_none() {
11364 return;
11365 }
11366
11367 let focused = self.focus_handle(cx).contains_focused(cx);
11368
11369 let project = project.clone();
11370 let blame =
11371 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11372 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11373 self.blame = Some(blame);
11374 }
11375 }
11376
11377 fn toggle_git_blame_inline_internal(
11378 &mut self,
11379 user_triggered: bool,
11380 cx: &mut ViewContext<Self>,
11381 ) {
11382 if self.git_blame_inline_enabled {
11383 self.git_blame_inline_enabled = false;
11384 self.show_git_blame_inline = false;
11385 self.show_git_blame_inline_delay_task.take();
11386 } else {
11387 self.git_blame_inline_enabled = true;
11388 self.start_git_blame_inline(user_triggered, cx);
11389 }
11390
11391 cx.notify();
11392 }
11393
11394 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11395 self.start_git_blame(user_triggered, cx);
11396
11397 if ProjectSettings::get_global(cx)
11398 .git
11399 .inline_blame_delay()
11400 .is_some()
11401 {
11402 self.start_inline_blame_timer(cx);
11403 } else {
11404 self.show_git_blame_inline = true
11405 }
11406 }
11407
11408 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11409 self.blame.as_ref()
11410 }
11411
11412 pub fn show_git_blame_gutter(&self) -> bool {
11413 self.show_git_blame_gutter
11414 }
11415
11416 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11417 self.show_git_blame_gutter && self.has_blame_entries(cx)
11418 }
11419
11420 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11421 self.show_git_blame_inline
11422 && self.focus_handle.is_focused(cx)
11423 && !self.newest_selection_head_on_empty_line(cx)
11424 && self.has_blame_entries(cx)
11425 }
11426
11427 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11428 self.blame()
11429 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11430 }
11431
11432 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11433 let cursor_anchor = self.selections.newest_anchor().head();
11434
11435 let snapshot = self.buffer.read(cx).snapshot(cx);
11436 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11437
11438 snapshot.line_len(buffer_row) == 0
11439 }
11440
11441 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11442 let buffer_and_selection = maybe!({
11443 let selection = self.selections.newest::<Point>(cx);
11444 let selection_range = selection.range();
11445
11446 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11447 (buffer, selection_range.start.row..selection_range.end.row)
11448 } else {
11449 let buffer_ranges = self
11450 .buffer()
11451 .read(cx)
11452 .range_to_buffer_ranges(selection_range, cx);
11453
11454 let (buffer, range, _) = if selection.reversed {
11455 buffer_ranges.first()
11456 } else {
11457 buffer_ranges.last()
11458 }?;
11459
11460 let snapshot = buffer.read(cx).snapshot();
11461 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11462 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11463 (buffer.clone(), selection)
11464 };
11465
11466 Some((buffer, selection))
11467 });
11468
11469 let Some((buffer, selection)) = buffer_and_selection else {
11470 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11471 };
11472
11473 let Some(project) = self.project.as_ref() else {
11474 return Task::ready(Err(anyhow!("editor does not have project")));
11475 };
11476
11477 project.update(cx, |project, cx| {
11478 project.get_permalink_to_line(&buffer, selection, cx)
11479 })
11480 }
11481
11482 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11483 let permalink_task = self.get_permalink_to_line(cx);
11484 let workspace = self.workspace();
11485
11486 cx.spawn(|_, mut cx| async move {
11487 match permalink_task.await {
11488 Ok(permalink) => {
11489 cx.update(|cx| {
11490 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11491 })
11492 .ok();
11493 }
11494 Err(err) => {
11495 let message = format!("Failed to copy permalink: {err}");
11496
11497 Err::<(), anyhow::Error>(err).log_err();
11498
11499 if let Some(workspace) = workspace {
11500 workspace
11501 .update(&mut cx, |workspace, cx| {
11502 struct CopyPermalinkToLine;
11503
11504 workspace.show_toast(
11505 Toast::new(
11506 NotificationId::unique::<CopyPermalinkToLine>(),
11507 message,
11508 ),
11509 cx,
11510 )
11511 })
11512 .ok();
11513 }
11514 }
11515 }
11516 })
11517 .detach();
11518 }
11519
11520 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11521 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11522 if let Some(file) = self.target_file(cx) {
11523 if let Some(path) = file.path().to_str() {
11524 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11525 }
11526 }
11527 }
11528
11529 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11530 let permalink_task = self.get_permalink_to_line(cx);
11531 let workspace = self.workspace();
11532
11533 cx.spawn(|_, mut cx| async move {
11534 match permalink_task.await {
11535 Ok(permalink) => {
11536 cx.update(|cx| {
11537 cx.open_url(permalink.as_ref());
11538 })
11539 .ok();
11540 }
11541 Err(err) => {
11542 let message = format!("Failed to open permalink: {err}");
11543
11544 Err::<(), anyhow::Error>(err).log_err();
11545
11546 if let Some(workspace) = workspace {
11547 workspace
11548 .update(&mut cx, |workspace, cx| {
11549 struct OpenPermalinkToLine;
11550
11551 workspace.show_toast(
11552 Toast::new(
11553 NotificationId::unique::<OpenPermalinkToLine>(),
11554 message,
11555 ),
11556 cx,
11557 )
11558 })
11559 .ok();
11560 }
11561 }
11562 }
11563 })
11564 .detach();
11565 }
11566
11567 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11568 self.insert_uuid(UuidVersion::V4, cx);
11569 }
11570
11571 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11572 self.insert_uuid(UuidVersion::V7, cx);
11573 }
11574
11575 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11576 self.transact(cx, |this, cx| {
11577 let edits = this
11578 .selections
11579 .all::<Point>(cx)
11580 .into_iter()
11581 .map(|selection| {
11582 let uuid = match version {
11583 UuidVersion::V4 => uuid::Uuid::new_v4(),
11584 UuidVersion::V7 => uuid::Uuid::now_v7(),
11585 };
11586
11587 (selection.range(), uuid.to_string())
11588 });
11589 this.edit(edits, cx);
11590 this.refresh_inline_completion(true, false, cx);
11591 });
11592 }
11593
11594 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11595 /// last highlight added will be used.
11596 ///
11597 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11598 pub fn highlight_rows<T: 'static>(
11599 &mut self,
11600 range: Range<Anchor>,
11601 color: Hsla,
11602 should_autoscroll: bool,
11603 cx: &mut ViewContext<Self>,
11604 ) {
11605 let snapshot = self.buffer().read(cx).snapshot(cx);
11606 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11607 let ix = row_highlights.binary_search_by(|highlight| {
11608 Ordering::Equal
11609 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11610 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11611 });
11612
11613 if let Err(mut ix) = ix {
11614 let index = post_inc(&mut self.highlight_order);
11615
11616 // If this range intersects with the preceding highlight, then merge it with
11617 // the preceding highlight. Otherwise insert a new highlight.
11618 let mut merged = false;
11619 if ix > 0 {
11620 let prev_highlight = &mut row_highlights[ix - 1];
11621 if prev_highlight
11622 .range
11623 .end
11624 .cmp(&range.start, &snapshot)
11625 .is_ge()
11626 {
11627 ix -= 1;
11628 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11629 prev_highlight.range.end = range.end;
11630 }
11631 merged = true;
11632 prev_highlight.index = index;
11633 prev_highlight.color = color;
11634 prev_highlight.should_autoscroll = should_autoscroll;
11635 }
11636 }
11637
11638 if !merged {
11639 row_highlights.insert(
11640 ix,
11641 RowHighlight {
11642 range: range.clone(),
11643 index,
11644 color,
11645 should_autoscroll,
11646 },
11647 );
11648 }
11649
11650 // If any of the following highlights intersect with this one, merge them.
11651 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11652 let highlight = &row_highlights[ix];
11653 if next_highlight
11654 .range
11655 .start
11656 .cmp(&highlight.range.end, &snapshot)
11657 .is_le()
11658 {
11659 if next_highlight
11660 .range
11661 .end
11662 .cmp(&highlight.range.end, &snapshot)
11663 .is_gt()
11664 {
11665 row_highlights[ix].range.end = next_highlight.range.end;
11666 }
11667 row_highlights.remove(ix + 1);
11668 } else {
11669 break;
11670 }
11671 }
11672 }
11673 }
11674
11675 /// Remove any highlighted row ranges of the given type that intersect the
11676 /// given ranges.
11677 pub fn remove_highlighted_rows<T: 'static>(
11678 &mut self,
11679 ranges_to_remove: Vec<Range<Anchor>>,
11680 cx: &mut ViewContext<Self>,
11681 ) {
11682 let snapshot = self.buffer().read(cx).snapshot(cx);
11683 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11684 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11685 row_highlights.retain(|highlight| {
11686 while let Some(range_to_remove) = ranges_to_remove.peek() {
11687 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11688 Ordering::Less | Ordering::Equal => {
11689 ranges_to_remove.next();
11690 }
11691 Ordering::Greater => {
11692 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11693 Ordering::Less | Ordering::Equal => {
11694 return false;
11695 }
11696 Ordering::Greater => break,
11697 }
11698 }
11699 }
11700 }
11701
11702 true
11703 })
11704 }
11705
11706 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11707 pub fn clear_row_highlights<T: 'static>(&mut self) {
11708 self.highlighted_rows.remove(&TypeId::of::<T>());
11709 }
11710
11711 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11712 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11713 self.highlighted_rows
11714 .get(&TypeId::of::<T>())
11715 .map_or(&[] as &[_], |vec| vec.as_slice())
11716 .iter()
11717 .map(|highlight| (highlight.range.clone(), highlight.color))
11718 }
11719
11720 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11721 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11722 /// Allows to ignore certain kinds of highlights.
11723 pub fn highlighted_display_rows(
11724 &mut self,
11725 cx: &mut WindowContext,
11726 ) -> BTreeMap<DisplayRow, Hsla> {
11727 let snapshot = self.snapshot(cx);
11728 let mut used_highlight_orders = HashMap::default();
11729 self.highlighted_rows
11730 .iter()
11731 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11732 .fold(
11733 BTreeMap::<DisplayRow, Hsla>::new(),
11734 |mut unique_rows, highlight| {
11735 let start = highlight.range.start.to_display_point(&snapshot);
11736 let end = highlight.range.end.to_display_point(&snapshot);
11737 let start_row = start.row().0;
11738 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11739 && end.column() == 0
11740 {
11741 end.row().0.saturating_sub(1)
11742 } else {
11743 end.row().0
11744 };
11745 for row in start_row..=end_row {
11746 let used_index =
11747 used_highlight_orders.entry(row).or_insert(highlight.index);
11748 if highlight.index >= *used_index {
11749 *used_index = highlight.index;
11750 unique_rows.insert(DisplayRow(row), highlight.color);
11751 }
11752 }
11753 unique_rows
11754 },
11755 )
11756 }
11757
11758 pub fn highlighted_display_row_for_autoscroll(
11759 &self,
11760 snapshot: &DisplaySnapshot,
11761 ) -> Option<DisplayRow> {
11762 self.highlighted_rows
11763 .values()
11764 .flat_map(|highlighted_rows| highlighted_rows.iter())
11765 .filter_map(|highlight| {
11766 if highlight.should_autoscroll {
11767 Some(highlight.range.start.to_display_point(snapshot).row())
11768 } else {
11769 None
11770 }
11771 })
11772 .min()
11773 }
11774
11775 pub fn set_search_within_ranges(
11776 &mut self,
11777 ranges: &[Range<Anchor>],
11778 cx: &mut ViewContext<Self>,
11779 ) {
11780 self.highlight_background::<SearchWithinRange>(
11781 ranges,
11782 |colors| colors.editor_document_highlight_read_background,
11783 cx,
11784 )
11785 }
11786
11787 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11788 self.breadcrumb_header = Some(new_header);
11789 }
11790
11791 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11792 self.clear_background_highlights::<SearchWithinRange>(cx);
11793 }
11794
11795 pub fn highlight_background<T: 'static>(
11796 &mut self,
11797 ranges: &[Range<Anchor>],
11798 color_fetcher: fn(&ThemeColors) -> Hsla,
11799 cx: &mut ViewContext<Self>,
11800 ) {
11801 self.background_highlights
11802 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11803 self.scrollbar_marker_state.dirty = true;
11804 cx.notify();
11805 }
11806
11807 pub fn clear_background_highlights<T: 'static>(
11808 &mut self,
11809 cx: &mut ViewContext<Self>,
11810 ) -> Option<BackgroundHighlight> {
11811 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11812 if !text_highlights.1.is_empty() {
11813 self.scrollbar_marker_state.dirty = true;
11814 cx.notify();
11815 }
11816 Some(text_highlights)
11817 }
11818
11819 pub fn highlight_gutter<T: 'static>(
11820 &mut self,
11821 ranges: &[Range<Anchor>],
11822 color_fetcher: fn(&AppContext) -> Hsla,
11823 cx: &mut ViewContext<Self>,
11824 ) {
11825 self.gutter_highlights
11826 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11827 cx.notify();
11828 }
11829
11830 pub fn clear_gutter_highlights<T: 'static>(
11831 &mut self,
11832 cx: &mut ViewContext<Self>,
11833 ) -> Option<GutterHighlight> {
11834 cx.notify();
11835 self.gutter_highlights.remove(&TypeId::of::<T>())
11836 }
11837
11838 #[cfg(feature = "test-support")]
11839 pub fn all_text_background_highlights(
11840 &mut self,
11841 cx: &mut ViewContext<Self>,
11842 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11843 let snapshot = self.snapshot(cx);
11844 let buffer = &snapshot.buffer_snapshot;
11845 let start = buffer.anchor_before(0);
11846 let end = buffer.anchor_after(buffer.len());
11847 let theme = cx.theme().colors();
11848 self.background_highlights_in_range(start..end, &snapshot, theme)
11849 }
11850
11851 #[cfg(feature = "test-support")]
11852 pub fn search_background_highlights(
11853 &mut self,
11854 cx: &mut ViewContext<Self>,
11855 ) -> Vec<Range<Point>> {
11856 let snapshot = self.buffer().read(cx).snapshot(cx);
11857
11858 let highlights = self
11859 .background_highlights
11860 .get(&TypeId::of::<items::BufferSearchHighlights>());
11861
11862 if let Some((_color, ranges)) = highlights {
11863 ranges
11864 .iter()
11865 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11866 .collect_vec()
11867 } else {
11868 vec![]
11869 }
11870 }
11871
11872 fn document_highlights_for_position<'a>(
11873 &'a self,
11874 position: Anchor,
11875 buffer: &'a MultiBufferSnapshot,
11876 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11877 let read_highlights = self
11878 .background_highlights
11879 .get(&TypeId::of::<DocumentHighlightRead>())
11880 .map(|h| &h.1);
11881 let write_highlights = self
11882 .background_highlights
11883 .get(&TypeId::of::<DocumentHighlightWrite>())
11884 .map(|h| &h.1);
11885 let left_position = position.bias_left(buffer);
11886 let right_position = position.bias_right(buffer);
11887 read_highlights
11888 .into_iter()
11889 .chain(write_highlights)
11890 .flat_map(move |ranges| {
11891 let start_ix = match ranges.binary_search_by(|probe| {
11892 let cmp = probe.end.cmp(&left_position, buffer);
11893 if cmp.is_ge() {
11894 Ordering::Greater
11895 } else {
11896 Ordering::Less
11897 }
11898 }) {
11899 Ok(i) | Err(i) => i,
11900 };
11901
11902 ranges[start_ix..]
11903 .iter()
11904 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11905 })
11906 }
11907
11908 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11909 self.background_highlights
11910 .get(&TypeId::of::<T>())
11911 .map_or(false, |(_, highlights)| !highlights.is_empty())
11912 }
11913
11914 pub fn background_highlights_in_range(
11915 &self,
11916 search_range: Range<Anchor>,
11917 display_snapshot: &DisplaySnapshot,
11918 theme: &ThemeColors,
11919 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11920 let mut results = Vec::new();
11921 for (color_fetcher, ranges) in self.background_highlights.values() {
11922 let color = color_fetcher(theme);
11923 let start_ix = match ranges.binary_search_by(|probe| {
11924 let cmp = probe
11925 .end
11926 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11927 if cmp.is_gt() {
11928 Ordering::Greater
11929 } else {
11930 Ordering::Less
11931 }
11932 }) {
11933 Ok(i) | Err(i) => i,
11934 };
11935 for range in &ranges[start_ix..] {
11936 if range
11937 .start
11938 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11939 .is_ge()
11940 {
11941 break;
11942 }
11943
11944 let start = range.start.to_display_point(display_snapshot);
11945 let end = range.end.to_display_point(display_snapshot);
11946 results.push((start..end, color))
11947 }
11948 }
11949 results
11950 }
11951
11952 pub fn background_highlight_row_ranges<T: 'static>(
11953 &self,
11954 search_range: Range<Anchor>,
11955 display_snapshot: &DisplaySnapshot,
11956 count: usize,
11957 ) -> Vec<RangeInclusive<DisplayPoint>> {
11958 let mut results = Vec::new();
11959 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11960 return vec![];
11961 };
11962
11963 let start_ix = match ranges.binary_search_by(|probe| {
11964 let cmp = probe
11965 .end
11966 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11967 if cmp.is_gt() {
11968 Ordering::Greater
11969 } else {
11970 Ordering::Less
11971 }
11972 }) {
11973 Ok(i) | Err(i) => i,
11974 };
11975 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11976 if let (Some(start_display), Some(end_display)) = (start, end) {
11977 results.push(
11978 start_display.to_display_point(display_snapshot)
11979 ..=end_display.to_display_point(display_snapshot),
11980 );
11981 }
11982 };
11983 let mut start_row: Option<Point> = None;
11984 let mut end_row: Option<Point> = None;
11985 if ranges.len() > count {
11986 return Vec::new();
11987 }
11988 for range in &ranges[start_ix..] {
11989 if range
11990 .start
11991 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11992 .is_ge()
11993 {
11994 break;
11995 }
11996 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11997 if let Some(current_row) = &end_row {
11998 if end.row == current_row.row {
11999 continue;
12000 }
12001 }
12002 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12003 if start_row.is_none() {
12004 assert_eq!(end_row, None);
12005 start_row = Some(start);
12006 end_row = Some(end);
12007 continue;
12008 }
12009 if let Some(current_end) = end_row.as_mut() {
12010 if start.row > current_end.row + 1 {
12011 push_region(start_row, end_row);
12012 start_row = Some(start);
12013 end_row = Some(end);
12014 } else {
12015 // Merge two hunks.
12016 *current_end = end;
12017 }
12018 } else {
12019 unreachable!();
12020 }
12021 }
12022 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12023 push_region(start_row, end_row);
12024 results
12025 }
12026
12027 pub fn gutter_highlights_in_range(
12028 &self,
12029 search_range: Range<Anchor>,
12030 display_snapshot: &DisplaySnapshot,
12031 cx: &AppContext,
12032 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12033 let mut results = Vec::new();
12034 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12035 let color = color_fetcher(cx);
12036 let start_ix = match ranges.binary_search_by(|probe| {
12037 let cmp = probe
12038 .end
12039 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12040 if cmp.is_gt() {
12041 Ordering::Greater
12042 } else {
12043 Ordering::Less
12044 }
12045 }) {
12046 Ok(i) | Err(i) => i,
12047 };
12048 for range in &ranges[start_ix..] {
12049 if range
12050 .start
12051 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12052 .is_ge()
12053 {
12054 break;
12055 }
12056
12057 let start = range.start.to_display_point(display_snapshot);
12058 let end = range.end.to_display_point(display_snapshot);
12059 results.push((start..end, color))
12060 }
12061 }
12062 results
12063 }
12064
12065 /// Get the text ranges corresponding to the redaction query
12066 pub fn redacted_ranges(
12067 &self,
12068 search_range: Range<Anchor>,
12069 display_snapshot: &DisplaySnapshot,
12070 cx: &WindowContext,
12071 ) -> Vec<Range<DisplayPoint>> {
12072 display_snapshot
12073 .buffer_snapshot
12074 .redacted_ranges(search_range, |file| {
12075 if let Some(file) = file {
12076 file.is_private()
12077 && EditorSettings::get(
12078 Some(SettingsLocation {
12079 worktree_id: file.worktree_id(cx),
12080 path: file.path().as_ref(),
12081 }),
12082 cx,
12083 )
12084 .redact_private_values
12085 } else {
12086 false
12087 }
12088 })
12089 .map(|range| {
12090 range.start.to_display_point(display_snapshot)
12091 ..range.end.to_display_point(display_snapshot)
12092 })
12093 .collect()
12094 }
12095
12096 pub fn highlight_text<T: 'static>(
12097 &mut self,
12098 ranges: Vec<Range<Anchor>>,
12099 style: HighlightStyle,
12100 cx: &mut ViewContext<Self>,
12101 ) {
12102 self.display_map.update(cx, |map, _| {
12103 map.highlight_text(TypeId::of::<T>(), ranges, style)
12104 });
12105 cx.notify();
12106 }
12107
12108 pub(crate) fn highlight_inlays<T: 'static>(
12109 &mut self,
12110 highlights: Vec<InlayHighlight>,
12111 style: HighlightStyle,
12112 cx: &mut ViewContext<Self>,
12113 ) {
12114 self.display_map.update(cx, |map, _| {
12115 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12116 });
12117 cx.notify();
12118 }
12119
12120 pub fn text_highlights<'a, T: 'static>(
12121 &'a self,
12122 cx: &'a AppContext,
12123 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12124 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12125 }
12126
12127 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12128 let cleared = self
12129 .display_map
12130 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12131 if cleared {
12132 cx.notify();
12133 }
12134 }
12135
12136 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12137 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12138 && self.focus_handle.is_focused(cx)
12139 }
12140
12141 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12142 self.show_cursor_when_unfocused = is_enabled;
12143 cx.notify();
12144 }
12145
12146 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12147 self.project
12148 .as_ref()
12149 .map(|project| project.read(cx).lsp_store())
12150 }
12151
12152 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12153 cx.notify();
12154 }
12155
12156 fn on_buffer_event(
12157 &mut self,
12158 multibuffer: Model<MultiBuffer>,
12159 event: &multi_buffer::Event,
12160 cx: &mut ViewContext<Self>,
12161 ) {
12162 match event {
12163 multi_buffer::Event::Edited {
12164 singleton_buffer_edited,
12165 edited_buffer: buffer_edited,
12166 } => {
12167 self.scrollbar_marker_state.dirty = true;
12168 self.active_indent_guides_state.dirty = true;
12169 self.refresh_active_diagnostics(cx);
12170 self.refresh_code_actions(cx);
12171 if self.has_active_inline_completion() {
12172 self.update_visible_inline_completion(cx);
12173 }
12174 if let Some(buffer) = buffer_edited {
12175 let buffer_id = buffer.read(cx).remote_id();
12176 if !self.registered_buffers.contains_key(&buffer_id) {
12177 if let Some(lsp_store) = self.lsp_store(cx) {
12178 lsp_store.update(cx, |lsp_store, cx| {
12179 self.registered_buffers.insert(
12180 buffer_id,
12181 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12182 );
12183 })
12184 }
12185 }
12186 }
12187 cx.emit(EditorEvent::BufferEdited);
12188 cx.emit(SearchEvent::MatchesInvalidated);
12189 if *singleton_buffer_edited {
12190 if let Some(project) = &self.project {
12191 let project = project.read(cx);
12192 #[allow(clippy::mutable_key_type)]
12193 let languages_affected = multibuffer
12194 .read(cx)
12195 .all_buffers()
12196 .into_iter()
12197 .filter_map(|buffer| {
12198 let buffer = buffer.read(cx);
12199 let language = buffer.language()?;
12200 if project.is_local()
12201 && project
12202 .language_servers_for_local_buffer(buffer, cx)
12203 .count()
12204 == 0
12205 {
12206 None
12207 } else {
12208 Some(language)
12209 }
12210 })
12211 .cloned()
12212 .collect::<HashSet<_>>();
12213 if !languages_affected.is_empty() {
12214 self.refresh_inlay_hints(
12215 InlayHintRefreshReason::BufferEdited(languages_affected),
12216 cx,
12217 );
12218 }
12219 }
12220 }
12221
12222 let Some(project) = &self.project else { return };
12223 let (telemetry, is_via_ssh) = {
12224 let project = project.read(cx);
12225 let telemetry = project.client().telemetry().clone();
12226 let is_via_ssh = project.is_via_ssh();
12227 (telemetry, is_via_ssh)
12228 };
12229 refresh_linked_ranges(self, cx);
12230 telemetry.log_edit_event("editor", is_via_ssh);
12231 }
12232 multi_buffer::Event::ExcerptsAdded {
12233 buffer,
12234 predecessor,
12235 excerpts,
12236 } => {
12237 self.tasks_update_task = Some(self.refresh_runnables(cx));
12238 let buffer_id = buffer.read(cx).remote_id();
12239 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12240 if let Some(project) = &self.project {
12241 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12242 }
12243 }
12244 cx.emit(EditorEvent::ExcerptsAdded {
12245 buffer: buffer.clone(),
12246 predecessor: *predecessor,
12247 excerpts: excerpts.clone(),
12248 });
12249 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12250 }
12251 multi_buffer::Event::ExcerptsRemoved { ids } => {
12252 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12253 let buffer = self.buffer.read(cx);
12254 self.registered_buffers
12255 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12256 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12257 }
12258 multi_buffer::Event::ExcerptsEdited { ids } => {
12259 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12260 }
12261 multi_buffer::Event::ExcerptsExpanded { ids } => {
12262 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12263 }
12264 multi_buffer::Event::Reparsed(buffer_id) => {
12265 self.tasks_update_task = Some(self.refresh_runnables(cx));
12266
12267 cx.emit(EditorEvent::Reparsed(*buffer_id));
12268 }
12269 multi_buffer::Event::LanguageChanged(buffer_id) => {
12270 linked_editing_ranges::refresh_linked_ranges(self, cx);
12271 cx.emit(EditorEvent::Reparsed(*buffer_id));
12272 cx.notify();
12273 }
12274 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12275 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12276 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12277 cx.emit(EditorEvent::TitleChanged)
12278 }
12279 // multi_buffer::Event::DiffBaseChanged => {
12280 // self.scrollbar_marker_state.dirty = true;
12281 // cx.emit(EditorEvent::DiffBaseChanged);
12282 // cx.notify();
12283 // }
12284 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12285 multi_buffer::Event::DiagnosticsUpdated => {
12286 self.refresh_active_diagnostics(cx);
12287 self.scrollbar_marker_state.dirty = true;
12288 cx.notify();
12289 }
12290 _ => {}
12291 };
12292 }
12293
12294 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12295 cx.notify();
12296 }
12297
12298 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12299 self.tasks_update_task = Some(self.refresh_runnables(cx));
12300 self.refresh_inline_completion(true, false, cx);
12301 self.refresh_inlay_hints(
12302 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12303 self.selections.newest_anchor().head(),
12304 &self.buffer.read(cx).snapshot(cx),
12305 cx,
12306 )),
12307 cx,
12308 );
12309
12310 let old_cursor_shape = self.cursor_shape;
12311
12312 {
12313 let editor_settings = EditorSettings::get_global(cx);
12314 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12315 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12316 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12317 }
12318
12319 if old_cursor_shape != self.cursor_shape {
12320 cx.emit(EditorEvent::CursorShapeChanged);
12321 }
12322
12323 let project_settings = ProjectSettings::get_global(cx);
12324 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12325
12326 if self.mode == EditorMode::Full {
12327 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12328 if self.git_blame_inline_enabled != inline_blame_enabled {
12329 self.toggle_git_blame_inline_internal(false, cx);
12330 }
12331 }
12332
12333 cx.notify();
12334 }
12335
12336 pub fn set_searchable(&mut self, searchable: bool) {
12337 self.searchable = searchable;
12338 }
12339
12340 pub fn searchable(&self) -> bool {
12341 self.searchable
12342 }
12343
12344 fn open_proposed_changes_editor(
12345 &mut self,
12346 _: &OpenProposedChangesEditor,
12347 cx: &mut ViewContext<Self>,
12348 ) {
12349 let Some(workspace) = self.workspace() else {
12350 cx.propagate();
12351 return;
12352 };
12353
12354 let selections = self.selections.all::<usize>(cx);
12355 let buffer = self.buffer.read(cx);
12356 let mut new_selections_by_buffer = HashMap::default();
12357 for selection in selections {
12358 for (buffer, range, _) in
12359 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12360 {
12361 let mut range = range.to_point(buffer.read(cx));
12362 range.start.column = 0;
12363 range.end.column = buffer.read(cx).line_len(range.end.row);
12364 new_selections_by_buffer
12365 .entry(buffer)
12366 .or_insert(Vec::new())
12367 .push(range)
12368 }
12369 }
12370
12371 let proposed_changes_buffers = new_selections_by_buffer
12372 .into_iter()
12373 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12374 .collect::<Vec<_>>();
12375 let proposed_changes_editor = cx.new_view(|cx| {
12376 ProposedChangesEditor::new(
12377 "Proposed changes",
12378 proposed_changes_buffers,
12379 self.project.clone(),
12380 cx,
12381 )
12382 });
12383
12384 cx.window_context().defer(move |cx| {
12385 workspace.update(cx, |workspace, cx| {
12386 workspace.active_pane().update(cx, |pane, cx| {
12387 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12388 });
12389 });
12390 });
12391 }
12392
12393 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12394 self.open_excerpts_common(None, true, cx)
12395 }
12396
12397 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12398 self.open_excerpts_common(None, false, cx)
12399 }
12400
12401 fn open_excerpts_common(
12402 &mut self,
12403 jump_data: Option<JumpData>,
12404 split: bool,
12405 cx: &mut ViewContext<Self>,
12406 ) {
12407 let Some(workspace) = self.workspace() else {
12408 cx.propagate();
12409 return;
12410 };
12411
12412 if self.buffer.read(cx).is_singleton() {
12413 cx.propagate();
12414 return;
12415 }
12416
12417 let mut new_selections_by_buffer = HashMap::default();
12418 match &jump_data {
12419 Some(jump_data) => {
12420 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12421 if let Some(buffer) = multi_buffer_snapshot
12422 .buffer_id_for_excerpt(jump_data.excerpt_id)
12423 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12424 {
12425 let buffer_snapshot = buffer.read(cx).snapshot();
12426 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12427 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12428 } else {
12429 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12430 };
12431 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12432 new_selections_by_buffer.insert(
12433 buffer,
12434 (
12435 vec![jump_to_offset..jump_to_offset],
12436 Some(jump_data.line_offset_from_top),
12437 ),
12438 );
12439 }
12440 }
12441 None => {
12442 let selections = self.selections.all::<usize>(cx);
12443 let buffer = self.buffer.read(cx);
12444 for selection in selections {
12445 for (mut buffer_handle, mut range, _) in
12446 buffer.range_to_buffer_ranges(selection.range(), cx)
12447 {
12448 // When editing branch buffers, jump to the corresponding location
12449 // in their base buffer.
12450 let buffer = buffer_handle.read(cx);
12451 if let Some(base_buffer) = buffer.base_buffer() {
12452 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12453 buffer_handle = base_buffer;
12454 }
12455
12456 if selection.reversed {
12457 mem::swap(&mut range.start, &mut range.end);
12458 }
12459 new_selections_by_buffer
12460 .entry(buffer_handle)
12461 .or_insert((Vec::new(), None))
12462 .0
12463 .push(range)
12464 }
12465 }
12466 }
12467 }
12468
12469 if new_selections_by_buffer.is_empty() {
12470 return;
12471 }
12472
12473 // We defer the pane interaction because we ourselves are a workspace item
12474 // and activating a new item causes the pane to call a method on us reentrantly,
12475 // which panics if we're on the stack.
12476 cx.window_context().defer(move |cx| {
12477 workspace.update(cx, |workspace, cx| {
12478 let pane = if split {
12479 workspace.adjacent_pane(cx)
12480 } else {
12481 workspace.active_pane().clone()
12482 };
12483
12484 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12485 let editor = buffer
12486 .read(cx)
12487 .file()
12488 .is_none()
12489 .then(|| {
12490 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12491 // so `workspace.open_project_item` will never find them, always opening a new editor.
12492 // Instead, we try to activate the existing editor in the pane first.
12493 let (editor, pane_item_index) =
12494 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12495 let editor = item.downcast::<Editor>()?;
12496 let singleton_buffer =
12497 editor.read(cx).buffer().read(cx).as_singleton()?;
12498 if singleton_buffer == buffer {
12499 Some((editor, i))
12500 } else {
12501 None
12502 }
12503 })?;
12504 pane.update(cx, |pane, cx| {
12505 pane.activate_item(pane_item_index, true, true, cx)
12506 });
12507 Some(editor)
12508 })
12509 .flatten()
12510 .unwrap_or_else(|| {
12511 workspace.open_project_item::<Self>(
12512 pane.clone(),
12513 buffer,
12514 true,
12515 true,
12516 cx,
12517 )
12518 });
12519
12520 editor.update(cx, |editor, cx| {
12521 let autoscroll = match scroll_offset {
12522 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12523 None => Autoscroll::newest(),
12524 };
12525 let nav_history = editor.nav_history.take();
12526 editor.change_selections(Some(autoscroll), cx, |s| {
12527 s.select_ranges(ranges);
12528 });
12529 editor.nav_history = nav_history;
12530 });
12531 }
12532 })
12533 });
12534 }
12535
12536 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12537 let snapshot = self.buffer.read(cx).read(cx);
12538 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12539 Some(
12540 ranges
12541 .iter()
12542 .map(move |range| {
12543 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12544 })
12545 .collect(),
12546 )
12547 }
12548
12549 fn selection_replacement_ranges(
12550 &self,
12551 range: Range<OffsetUtf16>,
12552 cx: &mut AppContext,
12553 ) -> Vec<Range<OffsetUtf16>> {
12554 let selections = self.selections.all::<OffsetUtf16>(cx);
12555 let newest_selection = selections
12556 .iter()
12557 .max_by_key(|selection| selection.id)
12558 .unwrap();
12559 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12560 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12561 let snapshot = self.buffer.read(cx).read(cx);
12562 selections
12563 .into_iter()
12564 .map(|mut selection| {
12565 selection.start.0 =
12566 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12567 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12568 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12569 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12570 })
12571 .collect()
12572 }
12573
12574 fn report_editor_event(
12575 &self,
12576 event_type: &'static str,
12577 file_extension: Option<String>,
12578 cx: &AppContext,
12579 ) {
12580 if cfg!(any(test, feature = "test-support")) {
12581 return;
12582 }
12583
12584 let Some(project) = &self.project else { return };
12585
12586 // If None, we are in a file without an extension
12587 let file = self
12588 .buffer
12589 .read(cx)
12590 .as_singleton()
12591 .and_then(|b| b.read(cx).file());
12592 let file_extension = file_extension.or(file
12593 .as_ref()
12594 .and_then(|file| Path::new(file.file_name(cx)).extension())
12595 .and_then(|e| e.to_str())
12596 .map(|a| a.to_string()));
12597
12598 let vim_mode = cx
12599 .global::<SettingsStore>()
12600 .raw_user_settings()
12601 .get("vim_mode")
12602 == Some(&serde_json::Value::Bool(true));
12603
12604 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12605 == language::language_settings::InlineCompletionProvider::Copilot;
12606 let copilot_enabled_for_language = self
12607 .buffer
12608 .read(cx)
12609 .settings_at(0, cx)
12610 .show_inline_completions;
12611
12612 let project = project.read(cx);
12613 telemetry::event!(
12614 event_type,
12615 file_extension,
12616 vim_mode,
12617 copilot_enabled,
12618 copilot_enabled_for_language,
12619 is_via_ssh = project.is_via_ssh(),
12620 );
12621 }
12622
12623 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12624 /// with each line being an array of {text, highlight} objects.
12625 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12626 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12627 return;
12628 };
12629
12630 #[derive(Serialize)]
12631 struct Chunk<'a> {
12632 text: String,
12633 highlight: Option<&'a str>,
12634 }
12635
12636 let snapshot = buffer.read(cx).snapshot();
12637 let range = self
12638 .selected_text_range(false, cx)
12639 .and_then(|selection| {
12640 if selection.range.is_empty() {
12641 None
12642 } else {
12643 Some(selection.range)
12644 }
12645 })
12646 .unwrap_or_else(|| 0..snapshot.len());
12647
12648 let chunks = snapshot.chunks(range, true);
12649 let mut lines = Vec::new();
12650 let mut line: VecDeque<Chunk> = VecDeque::new();
12651
12652 let Some(style) = self.style.as_ref() else {
12653 return;
12654 };
12655
12656 for chunk in chunks {
12657 let highlight = chunk
12658 .syntax_highlight_id
12659 .and_then(|id| id.name(&style.syntax));
12660 let mut chunk_lines = chunk.text.split('\n').peekable();
12661 while let Some(text) = chunk_lines.next() {
12662 let mut merged_with_last_token = false;
12663 if let Some(last_token) = line.back_mut() {
12664 if last_token.highlight == highlight {
12665 last_token.text.push_str(text);
12666 merged_with_last_token = true;
12667 }
12668 }
12669
12670 if !merged_with_last_token {
12671 line.push_back(Chunk {
12672 text: text.into(),
12673 highlight,
12674 });
12675 }
12676
12677 if chunk_lines.peek().is_some() {
12678 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12679 line.pop_front();
12680 }
12681 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12682 line.pop_back();
12683 }
12684
12685 lines.push(mem::take(&mut line));
12686 }
12687 }
12688 }
12689
12690 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12691 return;
12692 };
12693 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12694 }
12695
12696 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12697 self.request_autoscroll(Autoscroll::newest(), cx);
12698 let position = self.selections.newest_display(cx).start;
12699 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12700 }
12701
12702 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12703 &self.inlay_hint_cache
12704 }
12705
12706 pub fn replay_insert_event(
12707 &mut self,
12708 text: &str,
12709 relative_utf16_range: Option<Range<isize>>,
12710 cx: &mut ViewContext<Self>,
12711 ) {
12712 if !self.input_enabled {
12713 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12714 return;
12715 }
12716 if let Some(relative_utf16_range) = relative_utf16_range {
12717 let selections = self.selections.all::<OffsetUtf16>(cx);
12718 self.change_selections(None, cx, |s| {
12719 let new_ranges = selections.into_iter().map(|range| {
12720 let start = OffsetUtf16(
12721 range
12722 .head()
12723 .0
12724 .saturating_add_signed(relative_utf16_range.start),
12725 );
12726 let end = OffsetUtf16(
12727 range
12728 .head()
12729 .0
12730 .saturating_add_signed(relative_utf16_range.end),
12731 );
12732 start..end
12733 });
12734 s.select_ranges(new_ranges);
12735 });
12736 }
12737
12738 self.handle_input(text, cx);
12739 }
12740
12741 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12742 let Some(provider) = self.semantics_provider.as_ref() else {
12743 return false;
12744 };
12745
12746 let mut supports = false;
12747 self.buffer().read(cx).for_each_buffer(|buffer| {
12748 supports |= provider.supports_inlay_hints(buffer, cx);
12749 });
12750 supports
12751 }
12752
12753 pub fn focus(&self, cx: &mut WindowContext) {
12754 cx.focus(&self.focus_handle)
12755 }
12756
12757 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12758 self.focus_handle.is_focused(cx)
12759 }
12760
12761 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12762 cx.emit(EditorEvent::Focused);
12763
12764 if let Some(descendant) = self
12765 .last_focused_descendant
12766 .take()
12767 .and_then(|descendant| descendant.upgrade())
12768 {
12769 cx.focus(&descendant);
12770 } else {
12771 if let Some(blame) = self.blame.as_ref() {
12772 blame.update(cx, GitBlame::focus)
12773 }
12774
12775 self.blink_manager.update(cx, BlinkManager::enable);
12776 self.show_cursor_names(cx);
12777 self.buffer.update(cx, |buffer, cx| {
12778 buffer.finalize_last_transaction(cx);
12779 if self.leader_peer_id.is_none() {
12780 buffer.set_active_selections(
12781 &self.selections.disjoint_anchors(),
12782 self.selections.line_mode,
12783 self.cursor_shape,
12784 cx,
12785 );
12786 }
12787 });
12788 }
12789 }
12790
12791 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12792 cx.emit(EditorEvent::FocusedIn)
12793 }
12794
12795 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12796 if event.blurred != self.focus_handle {
12797 self.last_focused_descendant = Some(event.blurred);
12798 }
12799 }
12800
12801 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12802 self.blink_manager.update(cx, BlinkManager::disable);
12803 self.buffer
12804 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12805
12806 if let Some(blame) = self.blame.as_ref() {
12807 blame.update(cx, GitBlame::blur)
12808 }
12809 if !self.hover_state.focused(cx) {
12810 hide_hover(self, cx);
12811 }
12812
12813 self.hide_context_menu(cx);
12814 cx.emit(EditorEvent::Blurred);
12815 cx.notify();
12816 }
12817
12818 pub fn register_action<A: Action>(
12819 &mut self,
12820 listener: impl Fn(&A, &mut WindowContext) + 'static,
12821 ) -> Subscription {
12822 let id = self.next_editor_action_id.post_inc();
12823 let listener = Arc::new(listener);
12824 self.editor_actions.borrow_mut().insert(
12825 id,
12826 Box::new(move |cx| {
12827 let cx = cx.window_context();
12828 let listener = listener.clone();
12829 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12830 let action = action.downcast_ref().unwrap();
12831 if phase == DispatchPhase::Bubble {
12832 listener(action, cx)
12833 }
12834 })
12835 }),
12836 );
12837
12838 let editor_actions = self.editor_actions.clone();
12839 Subscription::new(move || {
12840 editor_actions.borrow_mut().remove(&id);
12841 })
12842 }
12843
12844 pub fn file_header_size(&self) -> u32 {
12845 FILE_HEADER_HEIGHT
12846 }
12847
12848 pub fn revert(
12849 &mut self,
12850 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12851 cx: &mut ViewContext<Self>,
12852 ) {
12853 self.buffer().update(cx, |multi_buffer, cx| {
12854 for (buffer_id, changes) in revert_changes {
12855 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12856 buffer.update(cx, |buffer, cx| {
12857 buffer.edit(
12858 changes.into_iter().map(|(range, text)| {
12859 (range, text.to_string().map(Arc::<str>::from))
12860 }),
12861 None,
12862 cx,
12863 );
12864 });
12865 }
12866 }
12867 });
12868 self.change_selections(None, cx, |selections| selections.refresh());
12869 }
12870
12871 pub fn to_pixel_point(
12872 &mut self,
12873 source: multi_buffer::Anchor,
12874 editor_snapshot: &EditorSnapshot,
12875 cx: &mut ViewContext<Self>,
12876 ) -> Option<gpui::Point<Pixels>> {
12877 let source_point = source.to_display_point(editor_snapshot);
12878 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12879 }
12880
12881 pub fn display_to_pixel_point(
12882 &self,
12883 source: DisplayPoint,
12884 editor_snapshot: &EditorSnapshot,
12885 cx: &WindowContext,
12886 ) -> Option<gpui::Point<Pixels>> {
12887 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12888 let text_layout_details = self.text_layout_details(cx);
12889 let scroll_top = text_layout_details
12890 .scroll_anchor
12891 .scroll_position(editor_snapshot)
12892 .y;
12893
12894 if source.row().as_f32() < scroll_top.floor() {
12895 return None;
12896 }
12897 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12898 let source_y = line_height * (source.row().as_f32() - scroll_top);
12899 Some(gpui::Point::new(source_x, source_y))
12900 }
12901
12902 pub fn has_active_completions_menu(&self) -> bool {
12903 self.context_menu.borrow().as_ref().map_or(false, |menu| {
12904 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12905 })
12906 }
12907
12908 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12909 self.addons
12910 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12911 }
12912
12913 pub fn unregister_addon<T: Addon>(&mut self) {
12914 self.addons.remove(&std::any::TypeId::of::<T>());
12915 }
12916
12917 pub fn addon<T: Addon>(&self) -> Option<&T> {
12918 let type_id = std::any::TypeId::of::<T>();
12919 self.addons
12920 .get(&type_id)
12921 .and_then(|item| item.to_any().downcast_ref::<T>())
12922 }
12923
12924 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12925 let text_layout_details = self.text_layout_details(cx);
12926 let style = &text_layout_details.editor_style;
12927 let font_id = cx.text_system().resolve_font(&style.text.font());
12928 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12929 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12930
12931 let em_width = cx
12932 .text_system()
12933 .typographic_bounds(font_id, font_size, 'm')
12934 .unwrap()
12935 .size
12936 .width;
12937
12938 gpui::Point::new(em_width, line_height)
12939 }
12940}
12941
12942fn get_unstaged_changes_for_buffers(
12943 project: &Model<Project>,
12944 buffers: impl IntoIterator<Item = Model<Buffer>>,
12945 cx: &mut ViewContext<Editor>,
12946) {
12947 let mut tasks = Vec::new();
12948 project.update(cx, |project, cx| {
12949 for buffer in buffers {
12950 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
12951 }
12952 });
12953 cx.spawn(|this, mut cx| async move {
12954 let change_sets = futures::future::join_all(tasks).await;
12955 this.update(&mut cx, |this, cx| {
12956 for change_set in change_sets {
12957 if let Some(change_set) = change_set.log_err() {
12958 this.diff_map.add_change_set(change_set, cx);
12959 }
12960 }
12961 })
12962 .ok();
12963 })
12964 .detach();
12965}
12966
12967fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
12968 let tab_size = tab_size.get() as usize;
12969 let mut width = offset;
12970
12971 for ch in text.chars() {
12972 width += if ch == '\t' {
12973 tab_size - (width % tab_size)
12974 } else {
12975 1
12976 };
12977 }
12978
12979 width - offset
12980}
12981
12982#[cfg(test)]
12983mod tests {
12984 use super::*;
12985
12986 #[test]
12987 fn test_string_size_with_expanded_tabs() {
12988 let nz = |val| NonZeroU32::new(val).unwrap();
12989 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
12990 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
12991 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
12992 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
12993 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
12994 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
12995 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
12996 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
12997 }
12998}
12999
13000/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13001struct WordBreakingTokenizer<'a> {
13002 input: &'a str,
13003}
13004
13005impl<'a> WordBreakingTokenizer<'a> {
13006 fn new(input: &'a str) -> Self {
13007 Self { input }
13008 }
13009}
13010
13011fn is_char_ideographic(ch: char) -> bool {
13012 use unicode_script::Script::*;
13013 use unicode_script::UnicodeScript;
13014 matches!(ch.script(), Han | Tangut | Yi)
13015}
13016
13017fn is_grapheme_ideographic(text: &str) -> bool {
13018 text.chars().any(is_char_ideographic)
13019}
13020
13021fn is_grapheme_whitespace(text: &str) -> bool {
13022 text.chars().any(|x| x.is_whitespace())
13023}
13024
13025fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13026 text.chars().next().map_or(false, |ch| {
13027 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13028 })
13029}
13030
13031#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13032struct WordBreakToken<'a> {
13033 token: &'a str,
13034 grapheme_len: usize,
13035 is_whitespace: bool,
13036}
13037
13038impl<'a> Iterator for WordBreakingTokenizer<'a> {
13039 /// Yields a span, the count of graphemes in the token, and whether it was
13040 /// whitespace. Note that it also breaks at word boundaries.
13041 type Item = WordBreakToken<'a>;
13042
13043 fn next(&mut self) -> Option<Self::Item> {
13044 use unicode_segmentation::UnicodeSegmentation;
13045 if self.input.is_empty() {
13046 return None;
13047 }
13048
13049 let mut iter = self.input.graphemes(true).peekable();
13050 let mut offset = 0;
13051 let mut graphemes = 0;
13052 if let Some(first_grapheme) = iter.next() {
13053 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13054 offset += first_grapheme.len();
13055 graphemes += 1;
13056 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13057 if let Some(grapheme) = iter.peek().copied() {
13058 if should_stay_with_preceding_ideograph(grapheme) {
13059 offset += grapheme.len();
13060 graphemes += 1;
13061 }
13062 }
13063 } else {
13064 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13065 let mut next_word_bound = words.peek().copied();
13066 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13067 next_word_bound = words.next();
13068 }
13069 while let Some(grapheme) = iter.peek().copied() {
13070 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13071 break;
13072 };
13073 if is_grapheme_whitespace(grapheme) != is_whitespace {
13074 break;
13075 };
13076 offset += grapheme.len();
13077 graphemes += 1;
13078 iter.next();
13079 }
13080 }
13081 let token = &self.input[..offset];
13082 self.input = &self.input[offset..];
13083 if is_whitespace {
13084 Some(WordBreakToken {
13085 token: " ",
13086 grapheme_len: 1,
13087 is_whitespace: true,
13088 })
13089 } else {
13090 Some(WordBreakToken {
13091 token,
13092 grapheme_len: graphemes,
13093 is_whitespace: false,
13094 })
13095 }
13096 } else {
13097 None
13098 }
13099 }
13100}
13101
13102#[test]
13103fn test_word_breaking_tokenizer() {
13104 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13105 ("", &[]),
13106 (" ", &[(" ", 1, true)]),
13107 ("Ʒ", &[("Ʒ", 1, false)]),
13108 ("Ǽ", &[("Ǽ", 1, false)]),
13109 ("⋑", &[("⋑", 1, false)]),
13110 ("⋑⋑", &[("⋑⋑", 2, false)]),
13111 (
13112 "原理，进而",
13113 &[
13114 ("原", 1, false),
13115 ("理，", 2, false),
13116 ("进", 1, false),
13117 ("而", 1, false),
13118 ],
13119 ),
13120 (
13121 "hello world",
13122 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13123 ),
13124 (
13125 "hello, world",
13126 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13127 ),
13128 (
13129 " hello world",
13130 &[
13131 (" ", 1, true),
13132 ("hello", 5, false),
13133 (" ", 1, true),
13134 ("world", 5, false),
13135 ],
13136 ),
13137 (
13138 "这是什么 \n 钢笔",
13139 &[
13140 ("这", 1, false),
13141 ("是", 1, false),
13142 ("什", 1, false),
13143 ("么", 1, false),
13144 (" ", 1, true),
13145 ("钢", 1, false),
13146 ("笔", 1, false),
13147 ],
13148 ),
13149 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13150 ];
13151
13152 for (input, result) in tests {
13153 assert_eq!(
13154 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13155 result
13156 .iter()
13157 .copied()
13158 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13159 token,
13160 grapheme_len,
13161 is_whitespace,
13162 })
13163 .collect::<Vec<_>>()
13164 );
13165 }
13166}
13167
13168fn wrap_with_prefix(
13169 line_prefix: String,
13170 unwrapped_text: String,
13171 wrap_column: usize,
13172 tab_size: NonZeroU32,
13173) -> String {
13174 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13175 let mut wrapped_text = String::new();
13176 let mut current_line = line_prefix.clone();
13177
13178 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13179 let mut current_line_len = line_prefix_len;
13180 for WordBreakToken {
13181 token,
13182 grapheme_len,
13183 is_whitespace,
13184 } in tokenizer
13185 {
13186 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13187 wrapped_text.push_str(current_line.trim_end());
13188 wrapped_text.push('\n');
13189 current_line.truncate(line_prefix.len());
13190 current_line_len = line_prefix_len;
13191 if !is_whitespace {
13192 current_line.push_str(token);
13193 current_line_len += grapheme_len;
13194 }
13195 } else if !is_whitespace {
13196 current_line.push_str(token);
13197 current_line_len += grapheme_len;
13198 } else if current_line_len != line_prefix_len {
13199 current_line.push(' ');
13200 current_line_len += 1;
13201 }
13202 }
13203
13204 if !current_line.is_empty() {
13205 wrapped_text.push_str(¤t_line);
13206 }
13207 wrapped_text
13208}
13209
13210#[test]
13211fn test_wrap_with_prefix() {
13212 assert_eq!(
13213 wrap_with_prefix(
13214 "# ".to_string(),
13215 "abcdefg".to_string(),
13216 4,
13217 NonZeroU32::new(4).unwrap()
13218 ),
13219 "# abcdefg"
13220 );
13221 assert_eq!(
13222 wrap_with_prefix(
13223 "".to_string(),
13224 "\thello world".to_string(),
13225 8,
13226 NonZeroU32::new(4).unwrap()
13227 ),
13228 "hello\nworld"
13229 );
13230 assert_eq!(
13231 wrap_with_prefix(
13232 "// ".to_string(),
13233 "xx \nyy zz aa bb cc".to_string(),
13234 12,
13235 NonZeroU32::new(4).unwrap()
13236 ),
13237 "// xx yy zz\n// aa bb cc"
13238 );
13239 assert_eq!(
13240 wrap_with_prefix(
13241 String::new(),
13242 "这是什么 \n 钢笔".to_string(),
13243 3,
13244 NonZeroU32::new(4).unwrap()
13245 ),
13246 "这是什\n么 钢\n笔"
13247 );
13248}
13249
13250fn hunks_for_selections(
13251 snapshot: &EditorSnapshot,
13252 selections: &[Selection<Point>],
13253) -> Vec<MultiBufferDiffHunk> {
13254 hunks_for_ranges(
13255 selections.iter().map(|selection| selection.range()),
13256 snapshot,
13257 )
13258}
13259
13260pub fn hunks_for_ranges(
13261 ranges: impl Iterator<Item = Range<Point>>,
13262 snapshot: &EditorSnapshot,
13263) -> Vec<MultiBufferDiffHunk> {
13264 let mut hunks = Vec::new();
13265 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13266 HashMap::default();
13267 for query_range in ranges {
13268 let query_rows =
13269 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13270 for hunk in snapshot.diff_map.diff_hunks_in_range(
13271 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13272 &snapshot.buffer_snapshot,
13273 ) {
13274 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13275 // when the caret is just above or just below the deleted hunk.
13276 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13277 let related_to_selection = if allow_adjacent {
13278 hunk.row_range.overlaps(&query_rows)
13279 || hunk.row_range.start == query_rows.end
13280 || hunk.row_range.end == query_rows.start
13281 } else {
13282 hunk.row_range.overlaps(&query_rows)
13283 };
13284 if related_to_selection {
13285 if !processed_buffer_rows
13286 .entry(hunk.buffer_id)
13287 .or_default()
13288 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13289 {
13290 continue;
13291 }
13292 hunks.push(hunk);
13293 }
13294 }
13295 }
13296
13297 hunks
13298}
13299
13300pub trait CollaborationHub {
13301 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13302 fn user_participant_indices<'a>(
13303 &self,
13304 cx: &'a AppContext,
13305 ) -> &'a HashMap<u64, ParticipantIndex>;
13306 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13307}
13308
13309impl CollaborationHub for Model<Project> {
13310 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13311 self.read(cx).collaborators()
13312 }
13313
13314 fn user_participant_indices<'a>(
13315 &self,
13316 cx: &'a AppContext,
13317 ) -> &'a HashMap<u64, ParticipantIndex> {
13318 self.read(cx).user_store().read(cx).participant_indices()
13319 }
13320
13321 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13322 let this = self.read(cx);
13323 let user_ids = this.collaborators().values().map(|c| c.user_id);
13324 this.user_store().read_with(cx, |user_store, cx| {
13325 user_store.participant_names(user_ids, cx)
13326 })
13327 }
13328}
13329
13330pub trait SemanticsProvider {
13331 fn hover(
13332 &self,
13333 buffer: &Model<Buffer>,
13334 position: text::Anchor,
13335 cx: &mut AppContext,
13336 ) -> Option<Task<Vec<project::Hover>>>;
13337
13338 fn inlay_hints(
13339 &self,
13340 buffer_handle: Model<Buffer>,
13341 range: Range<text::Anchor>,
13342 cx: &mut AppContext,
13343 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13344
13345 fn resolve_inlay_hint(
13346 &self,
13347 hint: InlayHint,
13348 buffer_handle: Model<Buffer>,
13349 server_id: LanguageServerId,
13350 cx: &mut AppContext,
13351 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13352
13353 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13354
13355 fn document_highlights(
13356 &self,
13357 buffer: &Model<Buffer>,
13358 position: text::Anchor,
13359 cx: &mut AppContext,
13360 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13361
13362 fn definitions(
13363 &self,
13364 buffer: &Model<Buffer>,
13365 position: text::Anchor,
13366 kind: GotoDefinitionKind,
13367 cx: &mut AppContext,
13368 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13369
13370 fn range_for_rename(
13371 &self,
13372 buffer: &Model<Buffer>,
13373 position: text::Anchor,
13374 cx: &mut AppContext,
13375 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13376
13377 fn perform_rename(
13378 &self,
13379 buffer: &Model<Buffer>,
13380 position: text::Anchor,
13381 new_name: String,
13382 cx: &mut AppContext,
13383 ) -> Option<Task<Result<ProjectTransaction>>>;
13384}
13385
13386pub trait CompletionProvider {
13387 fn completions(
13388 &self,
13389 buffer: &Model<Buffer>,
13390 buffer_position: text::Anchor,
13391 trigger: CompletionContext,
13392 cx: &mut ViewContext<Editor>,
13393 ) -> Task<Result<Vec<Completion>>>;
13394
13395 fn resolve_completions(
13396 &self,
13397 buffer: Model<Buffer>,
13398 completion_indices: Vec<usize>,
13399 completions: Rc<RefCell<Box<[Completion]>>>,
13400 cx: &mut ViewContext<Editor>,
13401 ) -> Task<Result<bool>>;
13402
13403 fn apply_additional_edits_for_completion(
13404 &self,
13405 buffer: Model<Buffer>,
13406 completion: Completion,
13407 push_to_history: bool,
13408 cx: &mut ViewContext<Editor>,
13409 ) -> Task<Result<Option<language::Transaction>>>;
13410
13411 fn is_completion_trigger(
13412 &self,
13413 buffer: &Model<Buffer>,
13414 position: language::Anchor,
13415 text: &str,
13416 trigger_in_words: bool,
13417 cx: &mut ViewContext<Editor>,
13418 ) -> bool;
13419
13420 fn sort_completions(&self) -> bool {
13421 true
13422 }
13423}
13424
13425pub trait CodeActionProvider {
13426 fn code_actions(
13427 &self,
13428 buffer: &Model<Buffer>,
13429 range: Range<text::Anchor>,
13430 cx: &mut WindowContext,
13431 ) -> Task<Result<Vec<CodeAction>>>;
13432
13433 fn apply_code_action(
13434 &self,
13435 buffer_handle: Model<Buffer>,
13436 action: CodeAction,
13437 excerpt_id: ExcerptId,
13438 push_to_history: bool,
13439 cx: &mut WindowContext,
13440 ) -> Task<Result<ProjectTransaction>>;
13441}
13442
13443impl CodeActionProvider for Model<Project> {
13444 fn code_actions(
13445 &self,
13446 buffer: &Model<Buffer>,
13447 range: Range<text::Anchor>,
13448 cx: &mut WindowContext,
13449 ) -> Task<Result<Vec<CodeAction>>> {
13450 self.update(cx, |project, cx| {
13451 project.code_actions(buffer, range, None, cx)
13452 })
13453 }
13454
13455 fn apply_code_action(
13456 &self,
13457 buffer_handle: Model<Buffer>,
13458 action: CodeAction,
13459 _excerpt_id: ExcerptId,
13460 push_to_history: bool,
13461 cx: &mut WindowContext,
13462 ) -> Task<Result<ProjectTransaction>> {
13463 self.update(cx, |project, cx| {
13464 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13465 })
13466 }
13467}
13468
13469fn snippet_completions(
13470 project: &Project,
13471 buffer: &Model<Buffer>,
13472 buffer_position: text::Anchor,
13473 cx: &mut AppContext,
13474) -> Task<Result<Vec<Completion>>> {
13475 let language = buffer.read(cx).language_at(buffer_position);
13476 let language_name = language.as_ref().map(|language| language.lsp_id());
13477 let snippet_store = project.snippets().read(cx);
13478 let snippets = snippet_store.snippets_for(language_name, cx);
13479
13480 if snippets.is_empty() {
13481 return Task::ready(Ok(vec![]));
13482 }
13483 let snapshot = buffer.read(cx).text_snapshot();
13484 let chars: String = snapshot
13485 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13486 .collect();
13487
13488 let scope = language.map(|language| language.default_scope());
13489 let executor = cx.background_executor().clone();
13490
13491 cx.background_executor().spawn(async move {
13492 let classifier = CharClassifier::new(scope).for_completion(true);
13493 let mut last_word = chars
13494 .chars()
13495 .take_while(|c| classifier.is_word(*c))
13496 .collect::<String>();
13497 last_word = last_word.chars().rev().collect();
13498
13499 if last_word.is_empty() {
13500 return Ok(vec![]);
13501 }
13502
13503 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13504 let to_lsp = |point: &text::Anchor| {
13505 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13506 point_to_lsp(end)
13507 };
13508 let lsp_end = to_lsp(&buffer_position);
13509
13510 let candidates = snippets
13511 .iter()
13512 .enumerate()
13513 .flat_map(|(ix, snippet)| {
13514 snippet
13515 .prefix
13516 .iter()
13517 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13518 })
13519 .collect::<Vec<StringMatchCandidate>>();
13520
13521 let mut matches = fuzzy::match_strings(
13522 &candidates,
13523 &last_word,
13524 last_word.chars().any(|c| c.is_uppercase()),
13525 100,
13526 &Default::default(),
13527 executor,
13528 )
13529 .await;
13530
13531 // Remove all candidates where the query's start does not match the start of any word in the candidate
13532 if let Some(query_start) = last_word.chars().next() {
13533 matches.retain(|string_match| {
13534 split_words(&string_match.string).any(|word| {
13535 // Check that the first codepoint of the word as lowercase matches the first
13536 // codepoint of the query as lowercase
13537 word.chars()
13538 .flat_map(|codepoint| codepoint.to_lowercase())
13539 .zip(query_start.to_lowercase())
13540 .all(|(word_cp, query_cp)| word_cp == query_cp)
13541 })
13542 });
13543 }
13544
13545 let matched_strings = matches
13546 .into_iter()
13547 .map(|m| m.string)
13548 .collect::<HashSet<_>>();
13549
13550 let result: Vec<Completion> = snippets
13551 .into_iter()
13552 .filter_map(|snippet| {
13553 let matching_prefix = snippet
13554 .prefix
13555 .iter()
13556 .find(|prefix| matched_strings.contains(*prefix))?;
13557 let start = as_offset - last_word.len();
13558 let start = snapshot.anchor_before(start);
13559 let range = start..buffer_position;
13560 let lsp_start = to_lsp(&start);
13561 let lsp_range = lsp::Range {
13562 start: lsp_start,
13563 end: lsp_end,
13564 };
13565 Some(Completion {
13566 old_range: range,
13567 new_text: snippet.body.clone(),
13568 label: CodeLabel {
13569 text: matching_prefix.clone(),
13570 runs: vec![],
13571 filter_range: 0..matching_prefix.len(),
13572 },
13573 server_id: LanguageServerId(usize::MAX),
13574 documentation: snippet.description.clone().map(Documentation::SingleLine),
13575 lsp_completion: lsp::CompletionItem {
13576 label: snippet.prefix.first().unwrap().clone(),
13577 kind: Some(CompletionItemKind::SNIPPET),
13578 label_details: snippet.description.as_ref().map(|description| {
13579 lsp::CompletionItemLabelDetails {
13580 detail: Some(description.clone()),
13581 description: None,
13582 }
13583 }),
13584 insert_text_format: Some(InsertTextFormat::SNIPPET),
13585 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13586 lsp::InsertReplaceEdit {
13587 new_text: snippet.body.clone(),
13588 insert: lsp_range,
13589 replace: lsp_range,
13590 },
13591 )),
13592 filter_text: Some(snippet.body.clone()),
13593 sort_text: Some(char::MAX.to_string()),
13594 ..Default::default()
13595 },
13596 confirm: None,
13597 })
13598 })
13599 .collect();
13600
13601 Ok(result)
13602 })
13603}
13604
13605impl CompletionProvider for Model<Project> {
13606 fn completions(
13607 &self,
13608 buffer: &Model<Buffer>,
13609 buffer_position: text::Anchor,
13610 options: CompletionContext,
13611 cx: &mut ViewContext<Editor>,
13612 ) -> Task<Result<Vec<Completion>>> {
13613 self.update(cx, |project, cx| {
13614 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13615 let project_completions = project.completions(buffer, buffer_position, options, cx);
13616 cx.background_executor().spawn(async move {
13617 let mut completions = project_completions.await?;
13618 let snippets_completions = snippets.await?;
13619 completions.extend(snippets_completions);
13620 Ok(completions)
13621 })
13622 })
13623 }
13624
13625 fn resolve_completions(
13626 &self,
13627 buffer: Model<Buffer>,
13628 completion_indices: Vec<usize>,
13629 completions: Rc<RefCell<Box<[Completion]>>>,
13630 cx: &mut ViewContext<Editor>,
13631 ) -> Task<Result<bool>> {
13632 self.update(cx, |project, cx| {
13633 project.resolve_completions(buffer, completion_indices, completions, cx)
13634 })
13635 }
13636
13637 fn apply_additional_edits_for_completion(
13638 &self,
13639 buffer: Model<Buffer>,
13640 completion: Completion,
13641 push_to_history: bool,
13642 cx: &mut ViewContext<Editor>,
13643 ) -> Task<Result<Option<language::Transaction>>> {
13644 self.update(cx, |project, cx| {
13645 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13646 })
13647 }
13648
13649 fn is_completion_trigger(
13650 &self,
13651 buffer: &Model<Buffer>,
13652 position: language::Anchor,
13653 text: &str,
13654 trigger_in_words: bool,
13655 cx: &mut ViewContext<Editor>,
13656 ) -> bool {
13657 let mut chars = text.chars();
13658 let char = if let Some(char) = chars.next() {
13659 char
13660 } else {
13661 return false;
13662 };
13663 if chars.next().is_some() {
13664 return false;
13665 }
13666
13667 let buffer = buffer.read(cx);
13668 let snapshot = buffer.snapshot();
13669 if !snapshot.settings_at(position, cx).show_completions_on_input {
13670 return false;
13671 }
13672 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13673 if trigger_in_words && classifier.is_word(char) {
13674 return true;
13675 }
13676
13677 buffer.completion_triggers().contains(text)
13678 }
13679}
13680
13681impl SemanticsProvider for Model<Project> {
13682 fn hover(
13683 &self,
13684 buffer: &Model<Buffer>,
13685 position: text::Anchor,
13686 cx: &mut AppContext,
13687 ) -> Option<Task<Vec<project::Hover>>> {
13688 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13689 }
13690
13691 fn document_highlights(
13692 &self,
13693 buffer: &Model<Buffer>,
13694 position: text::Anchor,
13695 cx: &mut AppContext,
13696 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13697 Some(self.update(cx, |project, cx| {
13698 project.document_highlights(buffer, position, cx)
13699 }))
13700 }
13701
13702 fn definitions(
13703 &self,
13704 buffer: &Model<Buffer>,
13705 position: text::Anchor,
13706 kind: GotoDefinitionKind,
13707 cx: &mut AppContext,
13708 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13709 Some(self.update(cx, |project, cx| match kind {
13710 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13711 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13712 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13713 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13714 }))
13715 }
13716
13717 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13718 // TODO: make this work for remote projects
13719 self.read(cx)
13720 .language_servers_for_local_buffer(buffer.read(cx), cx)
13721 .any(
13722 |(_, server)| match server.capabilities().inlay_hint_provider {
13723 Some(lsp::OneOf::Left(enabled)) => enabled,
13724 Some(lsp::OneOf::Right(_)) => true,
13725 None => false,
13726 },
13727 )
13728 }
13729
13730 fn inlay_hints(
13731 &self,
13732 buffer_handle: Model<Buffer>,
13733 range: Range<text::Anchor>,
13734 cx: &mut AppContext,
13735 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13736 Some(self.update(cx, |project, cx| {
13737 project.inlay_hints(buffer_handle, range, cx)
13738 }))
13739 }
13740
13741 fn resolve_inlay_hint(
13742 &self,
13743 hint: InlayHint,
13744 buffer_handle: Model<Buffer>,
13745 server_id: LanguageServerId,
13746 cx: &mut AppContext,
13747 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13748 Some(self.update(cx, |project, cx| {
13749 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13750 }))
13751 }
13752
13753 fn range_for_rename(
13754 &self,
13755 buffer: &Model<Buffer>,
13756 position: text::Anchor,
13757 cx: &mut AppContext,
13758 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13759 Some(self.update(cx, |project, cx| {
13760 project.prepare_rename(buffer.clone(), position, cx)
13761 }))
13762 }
13763
13764 fn perform_rename(
13765 &self,
13766 buffer: &Model<Buffer>,
13767 position: text::Anchor,
13768 new_name: String,
13769 cx: &mut AppContext,
13770 ) -> Option<Task<Result<ProjectTransaction>>> {
13771 Some(self.update(cx, |project, cx| {
13772 project.perform_rename(buffer.clone(), position, new_name, cx)
13773 }))
13774 }
13775}
13776
13777fn inlay_hint_settings(
13778 location: Anchor,
13779 snapshot: &MultiBufferSnapshot,
13780 cx: &mut ViewContext<'_, Editor>,
13781) -> InlayHintSettings {
13782 let file = snapshot.file_at(location);
13783 let language = snapshot.language_at(location).map(|l| l.name());
13784 language_settings(language, file, cx).inlay_hints
13785}
13786
13787fn consume_contiguous_rows(
13788 contiguous_row_selections: &mut Vec<Selection<Point>>,
13789 selection: &Selection<Point>,
13790 display_map: &DisplaySnapshot,
13791 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13792) -> (MultiBufferRow, MultiBufferRow) {
13793 contiguous_row_selections.push(selection.clone());
13794 let start_row = MultiBufferRow(selection.start.row);
13795 let mut end_row = ending_row(selection, display_map);
13796
13797 while let Some(next_selection) = selections.peek() {
13798 if next_selection.start.row <= end_row.0 {
13799 end_row = ending_row(next_selection, display_map);
13800 contiguous_row_selections.push(selections.next().unwrap().clone());
13801 } else {
13802 break;
13803 }
13804 }
13805 (start_row, end_row)
13806}
13807
13808fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13809 if next_selection.end.column > 0 || next_selection.is_empty() {
13810 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13811 } else {
13812 MultiBufferRow(next_selection.end.row)
13813 }
13814}
13815
13816impl EditorSnapshot {
13817 pub fn remote_selections_in_range<'a>(
13818 &'a self,
13819 range: &'a Range<Anchor>,
13820 collaboration_hub: &dyn CollaborationHub,
13821 cx: &'a AppContext,
13822 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13823 let participant_names = collaboration_hub.user_names(cx);
13824 let participant_indices = collaboration_hub.user_participant_indices(cx);
13825 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13826 let collaborators_by_replica_id = collaborators_by_peer_id
13827 .iter()
13828 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13829 .collect::<HashMap<_, _>>();
13830 self.buffer_snapshot
13831 .selections_in_range(range, false)
13832 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13833 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13834 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13835 let user_name = participant_names.get(&collaborator.user_id).cloned();
13836 Some(RemoteSelection {
13837 replica_id,
13838 selection,
13839 cursor_shape,
13840 line_mode,
13841 participant_index,
13842 peer_id: collaborator.peer_id,
13843 user_name,
13844 })
13845 })
13846 }
13847
13848 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13849 self.display_snapshot.buffer_snapshot.language_at(position)
13850 }
13851
13852 pub fn is_focused(&self) -> bool {
13853 self.is_focused
13854 }
13855
13856 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13857 self.placeholder_text.as_ref()
13858 }
13859
13860 pub fn scroll_position(&self) -> gpui::Point<f32> {
13861 self.scroll_anchor.scroll_position(&self.display_snapshot)
13862 }
13863
13864 fn gutter_dimensions(
13865 &self,
13866 font_id: FontId,
13867 font_size: Pixels,
13868 em_width: Pixels,
13869 em_advance: Pixels,
13870 max_line_number_width: Pixels,
13871 cx: &AppContext,
13872 ) -> GutterDimensions {
13873 if !self.show_gutter {
13874 return GutterDimensions::default();
13875 }
13876 let descent = cx.text_system().descent(font_id, font_size);
13877
13878 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13879 matches!(
13880 ProjectSettings::get_global(cx).git.git_gutter,
13881 Some(GitGutterSetting::TrackedFiles)
13882 )
13883 });
13884 let gutter_settings = EditorSettings::get_global(cx).gutter;
13885 let show_line_numbers = self
13886 .show_line_numbers
13887 .unwrap_or(gutter_settings.line_numbers);
13888 let line_gutter_width = if show_line_numbers {
13889 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13890 let min_width_for_number_on_gutter = em_advance * 4.0;
13891 max_line_number_width.max(min_width_for_number_on_gutter)
13892 } else {
13893 0.0.into()
13894 };
13895
13896 let show_code_actions = self
13897 .show_code_actions
13898 .unwrap_or(gutter_settings.code_actions);
13899
13900 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13901
13902 let git_blame_entries_width =
13903 self.git_blame_gutter_max_author_length
13904 .map(|max_author_length| {
13905 // Length of the author name, but also space for the commit hash,
13906 // the spacing and the timestamp.
13907 let max_char_count = max_author_length
13908 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13909 + 7 // length of commit sha
13910 + 14 // length of max relative timestamp ("60 minutes ago")
13911 + 4; // gaps and margins
13912
13913 em_advance * max_char_count
13914 });
13915
13916 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13917 left_padding += if show_code_actions || show_runnables {
13918 em_width * 3.0
13919 } else if show_git_gutter && show_line_numbers {
13920 em_width * 2.0
13921 } else if show_git_gutter || show_line_numbers {
13922 em_width
13923 } else {
13924 px(0.)
13925 };
13926
13927 let right_padding = if gutter_settings.folds && show_line_numbers {
13928 em_width * 4.0
13929 } else if gutter_settings.folds {
13930 em_width * 3.0
13931 } else if show_line_numbers {
13932 em_width
13933 } else {
13934 px(0.)
13935 };
13936
13937 GutterDimensions {
13938 left_padding,
13939 right_padding,
13940 width: line_gutter_width + left_padding + right_padding,
13941 margin: -descent,
13942 git_blame_entries_width,
13943 }
13944 }
13945
13946 pub fn render_crease_toggle(
13947 &self,
13948 buffer_row: MultiBufferRow,
13949 row_contains_cursor: bool,
13950 editor: View<Editor>,
13951 cx: &mut WindowContext,
13952 ) -> Option<AnyElement> {
13953 let folded = self.is_line_folded(buffer_row);
13954 let mut is_foldable = false;
13955
13956 if let Some(crease) = self
13957 .crease_snapshot
13958 .query_row(buffer_row, &self.buffer_snapshot)
13959 {
13960 is_foldable = true;
13961 match crease {
13962 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
13963 if let Some(render_toggle) = render_toggle {
13964 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13965 if folded {
13966 editor.update(cx, |editor, cx| {
13967 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13968 });
13969 } else {
13970 editor.update(cx, |editor, cx| {
13971 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13972 });
13973 }
13974 });
13975 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
13976 }
13977 }
13978 }
13979 }
13980
13981 is_foldable |= self.starts_indent(buffer_row);
13982
13983 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
13984 Some(
13985 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
13986 .toggle_state(folded)
13987 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13988 if folded {
13989 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13990 } else {
13991 this.fold_at(&FoldAt { buffer_row }, cx);
13992 }
13993 }))
13994 .into_any_element(),
13995 )
13996 } else {
13997 None
13998 }
13999 }
14000
14001 pub fn render_crease_trailer(
14002 &self,
14003 buffer_row: MultiBufferRow,
14004 cx: &mut WindowContext,
14005 ) -> Option<AnyElement> {
14006 let folded = self.is_line_folded(buffer_row);
14007 if let Crease::Inline { render_trailer, .. } = self
14008 .crease_snapshot
14009 .query_row(buffer_row, &self.buffer_snapshot)?
14010 {
14011 let render_trailer = render_trailer.as_ref()?;
14012 Some(render_trailer(buffer_row, folded, cx))
14013 } else {
14014 None
14015 }
14016 }
14017}
14018
14019impl Deref for EditorSnapshot {
14020 type Target = DisplaySnapshot;
14021
14022 fn deref(&self) -> &Self::Target {
14023 &self.display_snapshot
14024 }
14025}
14026
14027#[derive(Clone, Debug, PartialEq, Eq)]
14028pub enum EditorEvent {
14029 InputIgnored {
14030 text: Arc<str>,
14031 },
14032 InputHandled {
14033 utf16_range_to_replace: Option<Range<isize>>,
14034 text: Arc<str>,
14035 },
14036 ExcerptsAdded {
14037 buffer: Model<Buffer>,
14038 predecessor: ExcerptId,
14039 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14040 },
14041 ExcerptsRemoved {
14042 ids: Vec<ExcerptId>,
14043 },
14044 BufferFoldToggled {
14045 ids: Vec<ExcerptId>,
14046 folded: bool,
14047 },
14048 ExcerptsEdited {
14049 ids: Vec<ExcerptId>,
14050 },
14051 ExcerptsExpanded {
14052 ids: Vec<ExcerptId>,
14053 },
14054 BufferEdited,
14055 Edited {
14056 transaction_id: clock::Lamport,
14057 },
14058 Reparsed(BufferId),
14059 Focused,
14060 FocusedIn,
14061 Blurred,
14062 DirtyChanged,
14063 Saved,
14064 TitleChanged,
14065 DiffBaseChanged,
14066 SelectionsChanged {
14067 local: bool,
14068 },
14069 ScrollPositionChanged {
14070 local: bool,
14071 autoscroll: bool,
14072 },
14073 Closed,
14074 TransactionUndone {
14075 transaction_id: clock::Lamport,
14076 },
14077 TransactionBegun {
14078 transaction_id: clock::Lamport,
14079 },
14080 Reloaded,
14081 CursorShapeChanged,
14082}
14083
14084impl EventEmitter<EditorEvent> for Editor {}
14085
14086impl FocusableView for Editor {
14087 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14088 self.focus_handle.clone()
14089 }
14090}
14091
14092impl Render for Editor {
14093 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14094 let settings = ThemeSettings::get_global(cx);
14095
14096 let mut text_style = match self.mode {
14097 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14098 color: cx.theme().colors().editor_foreground,
14099 font_family: settings.ui_font.family.clone(),
14100 font_features: settings.ui_font.features.clone(),
14101 font_fallbacks: settings.ui_font.fallbacks.clone(),
14102 font_size: rems(0.875).into(),
14103 font_weight: settings.ui_font.weight,
14104 line_height: relative(settings.buffer_line_height.value()),
14105 ..Default::default()
14106 },
14107 EditorMode::Full => TextStyle {
14108 color: cx.theme().colors().editor_foreground,
14109 font_family: settings.buffer_font.family.clone(),
14110 font_features: settings.buffer_font.features.clone(),
14111 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14112 font_size: settings.buffer_font_size(cx).into(),
14113 font_weight: settings.buffer_font.weight,
14114 line_height: relative(settings.buffer_line_height.value()),
14115 ..Default::default()
14116 },
14117 };
14118 if let Some(text_style_refinement) = &self.text_style_refinement {
14119 text_style.refine(text_style_refinement)
14120 }
14121
14122 let background = match self.mode {
14123 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14124 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14125 EditorMode::Full => cx.theme().colors().editor_background,
14126 };
14127
14128 EditorElement::new(
14129 cx.view(),
14130 EditorStyle {
14131 background,
14132 local_player: cx.theme().players().local(),
14133 text: text_style,
14134 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14135 syntax: cx.theme().syntax().clone(),
14136 status: cx.theme().status().clone(),
14137 inlay_hints_style: make_inlay_hints_style(cx),
14138 inline_completion_styles: make_suggestion_styles(cx),
14139 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14140 },
14141 )
14142 }
14143}
14144
14145impl ViewInputHandler for Editor {
14146 fn text_for_range(
14147 &mut self,
14148 range_utf16: Range<usize>,
14149 adjusted_range: &mut Option<Range<usize>>,
14150 cx: &mut ViewContext<Self>,
14151 ) -> Option<String> {
14152 let snapshot = self.buffer.read(cx).read(cx);
14153 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14154 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14155 if (start.0..end.0) != range_utf16 {
14156 adjusted_range.replace(start.0..end.0);
14157 }
14158 Some(snapshot.text_for_range(start..end).collect())
14159 }
14160
14161 fn selected_text_range(
14162 &mut self,
14163 ignore_disabled_input: bool,
14164 cx: &mut ViewContext<Self>,
14165 ) -> Option<UTF16Selection> {
14166 // Prevent the IME menu from appearing when holding down an alphabetic key
14167 // while input is disabled.
14168 if !ignore_disabled_input && !self.input_enabled {
14169 return None;
14170 }
14171
14172 let selection = self.selections.newest::<OffsetUtf16>(cx);
14173 let range = selection.range();
14174
14175 Some(UTF16Selection {
14176 range: range.start.0..range.end.0,
14177 reversed: selection.reversed,
14178 })
14179 }
14180
14181 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14182 let snapshot = self.buffer.read(cx).read(cx);
14183 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14184 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14185 }
14186
14187 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14188 self.clear_highlights::<InputComposition>(cx);
14189 self.ime_transaction.take();
14190 }
14191
14192 fn replace_text_in_range(
14193 &mut self,
14194 range_utf16: Option<Range<usize>>,
14195 text: &str,
14196 cx: &mut ViewContext<Self>,
14197 ) {
14198 if !self.input_enabled {
14199 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14200 return;
14201 }
14202
14203 self.transact(cx, |this, cx| {
14204 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14205 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14206 Some(this.selection_replacement_ranges(range_utf16, cx))
14207 } else {
14208 this.marked_text_ranges(cx)
14209 };
14210
14211 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14212 let newest_selection_id = this.selections.newest_anchor().id;
14213 this.selections
14214 .all::<OffsetUtf16>(cx)
14215 .iter()
14216 .zip(ranges_to_replace.iter())
14217 .find_map(|(selection, range)| {
14218 if selection.id == newest_selection_id {
14219 Some(
14220 (range.start.0 as isize - selection.head().0 as isize)
14221 ..(range.end.0 as isize - selection.head().0 as isize),
14222 )
14223 } else {
14224 None
14225 }
14226 })
14227 });
14228
14229 cx.emit(EditorEvent::InputHandled {
14230 utf16_range_to_replace: range_to_replace,
14231 text: text.into(),
14232 });
14233
14234 if let Some(new_selected_ranges) = new_selected_ranges {
14235 this.change_selections(None, cx, |selections| {
14236 selections.select_ranges(new_selected_ranges)
14237 });
14238 this.backspace(&Default::default(), cx);
14239 }
14240
14241 this.handle_input(text, cx);
14242 });
14243
14244 if let Some(transaction) = self.ime_transaction {
14245 self.buffer.update(cx, |buffer, cx| {
14246 buffer.group_until_transaction(transaction, cx);
14247 });
14248 }
14249
14250 self.unmark_text(cx);
14251 }
14252
14253 fn replace_and_mark_text_in_range(
14254 &mut self,
14255 range_utf16: Option<Range<usize>>,
14256 text: &str,
14257 new_selected_range_utf16: Option<Range<usize>>,
14258 cx: &mut ViewContext<Self>,
14259 ) {
14260 if !self.input_enabled {
14261 return;
14262 }
14263
14264 let transaction = self.transact(cx, |this, cx| {
14265 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14266 let snapshot = this.buffer.read(cx).read(cx);
14267 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14268 for marked_range in &mut marked_ranges {
14269 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14270 marked_range.start.0 += relative_range_utf16.start;
14271 marked_range.start =
14272 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14273 marked_range.end =
14274 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14275 }
14276 }
14277 Some(marked_ranges)
14278 } else if let Some(range_utf16) = range_utf16 {
14279 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14280 Some(this.selection_replacement_ranges(range_utf16, cx))
14281 } else {
14282 None
14283 };
14284
14285 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14286 let newest_selection_id = this.selections.newest_anchor().id;
14287 this.selections
14288 .all::<OffsetUtf16>(cx)
14289 .iter()
14290 .zip(ranges_to_replace.iter())
14291 .find_map(|(selection, range)| {
14292 if selection.id == newest_selection_id {
14293 Some(
14294 (range.start.0 as isize - selection.head().0 as isize)
14295 ..(range.end.0 as isize - selection.head().0 as isize),
14296 )
14297 } else {
14298 None
14299 }
14300 })
14301 });
14302
14303 cx.emit(EditorEvent::InputHandled {
14304 utf16_range_to_replace: range_to_replace,
14305 text: text.into(),
14306 });
14307
14308 if let Some(ranges) = ranges_to_replace {
14309 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14310 }
14311
14312 let marked_ranges = {
14313 let snapshot = this.buffer.read(cx).read(cx);
14314 this.selections
14315 .disjoint_anchors()
14316 .iter()
14317 .map(|selection| {
14318 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14319 })
14320 .collect::<Vec<_>>()
14321 };
14322
14323 if text.is_empty() {
14324 this.unmark_text(cx);
14325 } else {
14326 this.highlight_text::<InputComposition>(
14327 marked_ranges.clone(),
14328 HighlightStyle {
14329 underline: Some(UnderlineStyle {
14330 thickness: px(1.),
14331 color: None,
14332 wavy: false,
14333 }),
14334 ..Default::default()
14335 },
14336 cx,
14337 );
14338 }
14339
14340 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14341 let use_autoclose = this.use_autoclose;
14342 let use_auto_surround = this.use_auto_surround;
14343 this.set_use_autoclose(false);
14344 this.set_use_auto_surround(false);
14345 this.handle_input(text, cx);
14346 this.set_use_autoclose(use_autoclose);
14347 this.set_use_auto_surround(use_auto_surround);
14348
14349 if let Some(new_selected_range) = new_selected_range_utf16 {
14350 let snapshot = this.buffer.read(cx).read(cx);
14351 let new_selected_ranges = marked_ranges
14352 .into_iter()
14353 .map(|marked_range| {
14354 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14355 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14356 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14357 snapshot.clip_offset_utf16(new_start, Bias::Left)
14358 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14359 })
14360 .collect::<Vec<_>>();
14361
14362 drop(snapshot);
14363 this.change_selections(None, cx, |selections| {
14364 selections.select_ranges(new_selected_ranges)
14365 });
14366 }
14367 });
14368
14369 self.ime_transaction = self.ime_transaction.or(transaction);
14370 if let Some(transaction) = self.ime_transaction {
14371 self.buffer.update(cx, |buffer, cx| {
14372 buffer.group_until_transaction(transaction, cx);
14373 });
14374 }
14375
14376 if self.text_highlights::<InputComposition>(cx).is_none() {
14377 self.ime_transaction.take();
14378 }
14379 }
14380
14381 fn bounds_for_range(
14382 &mut self,
14383 range_utf16: Range<usize>,
14384 element_bounds: gpui::Bounds<Pixels>,
14385 cx: &mut ViewContext<Self>,
14386 ) -> Option<gpui::Bounds<Pixels>> {
14387 let text_layout_details = self.text_layout_details(cx);
14388 let gpui::Point {
14389 x: em_width,
14390 y: line_height,
14391 } = self.character_size(cx);
14392
14393 let snapshot = self.snapshot(cx);
14394 let scroll_position = snapshot.scroll_position();
14395 let scroll_left = scroll_position.x * em_width;
14396
14397 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14398 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14399 + self.gutter_dimensions.width
14400 + self.gutter_dimensions.margin;
14401 let y = line_height * (start.row().as_f32() - scroll_position.y);
14402
14403 Some(Bounds {
14404 origin: element_bounds.origin + point(x, y),
14405 size: size(em_width, line_height),
14406 })
14407 }
14408}
14409
14410trait SelectionExt {
14411 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14412 fn spanned_rows(
14413 &self,
14414 include_end_if_at_line_start: bool,
14415 map: &DisplaySnapshot,
14416 ) -> Range<MultiBufferRow>;
14417}
14418
14419impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14420 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14421 let start = self
14422 .start
14423 .to_point(&map.buffer_snapshot)
14424 .to_display_point(map);
14425 let end = self
14426 .end
14427 .to_point(&map.buffer_snapshot)
14428 .to_display_point(map);
14429 if self.reversed {
14430 end..start
14431 } else {
14432 start..end
14433 }
14434 }
14435
14436 fn spanned_rows(
14437 &self,
14438 include_end_if_at_line_start: bool,
14439 map: &DisplaySnapshot,
14440 ) -> Range<MultiBufferRow> {
14441 let start = self.start.to_point(&map.buffer_snapshot);
14442 let mut end = self.end.to_point(&map.buffer_snapshot);
14443 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14444 end.row -= 1;
14445 }
14446
14447 let buffer_start = map.prev_line_boundary(start).0;
14448 let buffer_end = map.next_line_boundary(end).0;
14449 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14450 }
14451}
14452
14453impl<T: InvalidationRegion> InvalidationStack<T> {
14454 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14455 where
14456 S: Clone + ToOffset,
14457 {
14458 while let Some(region) = self.last() {
14459 let all_selections_inside_invalidation_ranges =
14460 if selections.len() == region.ranges().len() {
14461 selections
14462 .iter()
14463 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14464 .all(|(selection, invalidation_range)| {
14465 let head = selection.head().to_offset(buffer);
14466 invalidation_range.start <= head && invalidation_range.end >= head
14467 })
14468 } else {
14469 false
14470 };
14471
14472 if all_selections_inside_invalidation_ranges {
14473 break;
14474 } else {
14475 self.pop();
14476 }
14477 }
14478 }
14479}
14480
14481impl<T> Default for InvalidationStack<T> {
14482 fn default() -> Self {
14483 Self(Default::default())
14484 }
14485}
14486
14487impl<T> Deref for InvalidationStack<T> {
14488 type Target = Vec<T>;
14489
14490 fn deref(&self) -> &Self::Target {
14491 &self.0
14492 }
14493}
14494
14495impl<T> DerefMut for InvalidationStack<T> {
14496 fn deref_mut(&mut self) -> &mut Self::Target {
14497 &mut self.0
14498 }
14499}
14500
14501impl InvalidationRegion for SnippetState {
14502 fn ranges(&self) -> &[Range<Anchor>] {
14503 &self.ranges[self.active_index]
14504 }
14505}
14506
14507pub fn diagnostic_block_renderer(
14508 diagnostic: Diagnostic,
14509 max_message_rows: Option<u8>,
14510 allow_closing: bool,
14511 _is_valid: bool,
14512) -> RenderBlock {
14513 let (text_without_backticks, code_ranges) =
14514 highlight_diagnostic_message(&diagnostic, max_message_rows);
14515
14516 Arc::new(move |cx: &mut BlockContext| {
14517 let group_id: SharedString = cx.block_id.to_string().into();
14518
14519 let mut text_style = cx.text_style().clone();
14520 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14521 let theme_settings = ThemeSettings::get_global(cx);
14522 text_style.font_family = theme_settings.buffer_font.family.clone();
14523 text_style.font_style = theme_settings.buffer_font.style;
14524 text_style.font_features = theme_settings.buffer_font.features.clone();
14525 text_style.font_weight = theme_settings.buffer_font.weight;
14526
14527 let multi_line_diagnostic = diagnostic.message.contains('\n');
14528
14529 let buttons = |diagnostic: &Diagnostic| {
14530 if multi_line_diagnostic {
14531 v_flex()
14532 } else {
14533 h_flex()
14534 }
14535 .when(allow_closing, |div| {
14536 div.children(diagnostic.is_primary.then(|| {
14537 IconButton::new("close-block", IconName::XCircle)
14538 .icon_color(Color::Muted)
14539 .size(ButtonSize::Compact)
14540 .style(ButtonStyle::Transparent)
14541 .visible_on_hover(group_id.clone())
14542 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14543 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14544 }))
14545 })
14546 .child(
14547 IconButton::new("copy-block", IconName::Copy)
14548 .icon_color(Color::Muted)
14549 .size(ButtonSize::Compact)
14550 .style(ButtonStyle::Transparent)
14551 .visible_on_hover(group_id.clone())
14552 .on_click({
14553 let message = diagnostic.message.clone();
14554 move |_click, cx| {
14555 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14556 }
14557 })
14558 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14559 )
14560 };
14561
14562 let icon_size = buttons(&diagnostic)
14563 .into_any_element()
14564 .layout_as_root(AvailableSpace::min_size(), cx);
14565
14566 h_flex()
14567 .id(cx.block_id)
14568 .group(group_id.clone())
14569 .relative()
14570 .size_full()
14571 .block_mouse_down()
14572 .pl(cx.gutter_dimensions.width)
14573 .w(cx.max_width - cx.gutter_dimensions.full_width())
14574 .child(
14575 div()
14576 .flex()
14577 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14578 .flex_shrink(),
14579 )
14580 .child(buttons(&diagnostic))
14581 .child(div().flex().flex_shrink_0().child(
14582 StyledText::new(text_without_backticks.clone()).with_highlights(
14583 &text_style,
14584 code_ranges.iter().map(|range| {
14585 (
14586 range.clone(),
14587 HighlightStyle {
14588 font_weight: Some(FontWeight::BOLD),
14589 ..Default::default()
14590 },
14591 )
14592 }),
14593 ),
14594 ))
14595 .into_any_element()
14596 })
14597}
14598
14599fn inline_completion_edit_text(
14600 editor_snapshot: &EditorSnapshot,
14601 edits: &Vec<(Range<Anchor>, String)>,
14602 cx: &WindowContext,
14603) -> InlineCompletionText {
14604 let edit_start = edits
14605 .first()
14606 .unwrap()
14607 .0
14608 .start
14609 .to_display_point(editor_snapshot);
14610
14611 let mut text = String::new();
14612 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14613 let mut highlights = Vec::new();
14614 for (old_range, new_text) in edits {
14615 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14616 text.extend(
14617 editor_snapshot
14618 .buffer_snapshot
14619 .chunks(offset..old_offset_range.start, false)
14620 .map(|chunk| chunk.text),
14621 );
14622 offset = old_offset_range.end;
14623
14624 let start = text.len();
14625 text.push_str(new_text);
14626 let end = text.len();
14627 highlights.push((
14628 start..end,
14629 HighlightStyle {
14630 background_color: Some(cx.theme().status().created_background),
14631 ..Default::default()
14632 },
14633 ));
14634 }
14635
14636 let edit_end = edits
14637 .last()
14638 .unwrap()
14639 .0
14640 .end
14641 .to_display_point(editor_snapshot);
14642 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14643 .to_offset(editor_snapshot, Bias::Right);
14644 text.extend(
14645 editor_snapshot
14646 .buffer_snapshot
14647 .chunks(offset..end_of_line, false)
14648 .map(|chunk| chunk.text),
14649 );
14650
14651 InlineCompletionText::Edit {
14652 text: text.into(),
14653 highlights,
14654 }
14655}
14656
14657pub fn highlight_diagnostic_message(
14658 diagnostic: &Diagnostic,
14659 mut max_message_rows: Option<u8>,
14660) -> (SharedString, Vec<Range<usize>>) {
14661 let mut text_without_backticks = String::new();
14662 let mut code_ranges = Vec::new();
14663
14664 if let Some(source) = &diagnostic.source {
14665 text_without_backticks.push_str(source);
14666 code_ranges.push(0..source.len());
14667 text_without_backticks.push_str(": ");
14668 }
14669
14670 let mut prev_offset = 0;
14671 let mut in_code_block = false;
14672 let has_row_limit = max_message_rows.is_some();
14673 let mut newline_indices = diagnostic
14674 .message
14675 .match_indices('\n')
14676 .filter(|_| has_row_limit)
14677 .map(|(ix, _)| ix)
14678 .fuse()
14679 .peekable();
14680
14681 for (quote_ix, _) in diagnostic
14682 .message
14683 .match_indices('`')
14684 .chain([(diagnostic.message.len(), "")])
14685 {
14686 let mut first_newline_ix = None;
14687 let mut last_newline_ix = None;
14688 while let Some(newline_ix) = newline_indices.peek() {
14689 if *newline_ix < quote_ix {
14690 if first_newline_ix.is_none() {
14691 first_newline_ix = Some(*newline_ix);
14692 }
14693 last_newline_ix = Some(*newline_ix);
14694
14695 if let Some(rows_left) = &mut max_message_rows {
14696 if *rows_left == 0 {
14697 break;
14698 } else {
14699 *rows_left -= 1;
14700 }
14701 }
14702 let _ = newline_indices.next();
14703 } else {
14704 break;
14705 }
14706 }
14707 let prev_len = text_without_backticks.len();
14708 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14709 text_without_backticks.push_str(new_text);
14710 if in_code_block {
14711 code_ranges.push(prev_len..text_without_backticks.len());
14712 }
14713 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14714 in_code_block = !in_code_block;
14715 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14716 text_without_backticks.push_str("...");
14717 break;
14718 }
14719 }
14720
14721 (text_without_backticks.into(), code_ranges)
14722}
14723
14724fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14725 match severity {
14726 DiagnosticSeverity::ERROR => colors.error,
14727 DiagnosticSeverity::WARNING => colors.warning,
14728 DiagnosticSeverity::INFORMATION => colors.info,
14729 DiagnosticSeverity::HINT => colors.info,
14730 _ => colors.ignored,
14731 }
14732}
14733
14734pub fn styled_runs_for_code_label<'a>(
14735 label: &'a CodeLabel,
14736 syntax_theme: &'a theme::SyntaxTheme,
14737) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14738 let fade_out = HighlightStyle {
14739 fade_out: Some(0.35),
14740 ..Default::default()
14741 };
14742
14743 let mut prev_end = label.filter_range.end;
14744 label
14745 .runs
14746 .iter()
14747 .enumerate()
14748 .flat_map(move |(ix, (range, highlight_id))| {
14749 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14750 style
14751 } else {
14752 return Default::default();
14753 };
14754 let mut muted_style = style;
14755 muted_style.highlight(fade_out);
14756
14757 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14758 if range.start >= label.filter_range.end {
14759 if range.start > prev_end {
14760 runs.push((prev_end..range.start, fade_out));
14761 }
14762 runs.push((range.clone(), muted_style));
14763 } else if range.end <= label.filter_range.end {
14764 runs.push((range.clone(), style));
14765 } else {
14766 runs.push((range.start..label.filter_range.end, style));
14767 runs.push((label.filter_range.end..range.end, muted_style));
14768 }
14769 prev_end = cmp::max(prev_end, range.end);
14770
14771 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14772 runs.push((prev_end..label.text.len(), fade_out));
14773 }
14774
14775 runs
14776 })
14777}
14778
14779pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14780 let mut prev_index = 0;
14781 let mut prev_codepoint: Option<char> = None;
14782 text.char_indices()
14783 .chain([(text.len(), '\0')])
14784 .filter_map(move |(index, codepoint)| {
14785 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14786 let is_boundary = index == text.len()
14787 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14788 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14789 if is_boundary {
14790 let chunk = &text[prev_index..index];
14791 prev_index = index;
14792 Some(chunk)
14793 } else {
14794 None
14795 }
14796 })
14797}
14798
14799pub trait RangeToAnchorExt: Sized {
14800 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14801
14802 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14803 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14804 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14805 }
14806}
14807
14808impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14809 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14810 let start_offset = self.start.to_offset(snapshot);
14811 let end_offset = self.end.to_offset(snapshot);
14812 if start_offset == end_offset {
14813 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14814 } else {
14815 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14816 }
14817 }
14818}
14819
14820pub trait RowExt {
14821 fn as_f32(&self) -> f32;
14822
14823 fn next_row(&self) -> Self;
14824
14825 fn previous_row(&self) -> Self;
14826
14827 fn minus(&self, other: Self) -> u32;
14828}
14829
14830impl RowExt for DisplayRow {
14831 fn as_f32(&self) -> f32 {
14832 self.0 as f32
14833 }
14834
14835 fn next_row(&self) -> Self {
14836 Self(self.0 + 1)
14837 }
14838
14839 fn previous_row(&self) -> Self {
14840 Self(self.0.saturating_sub(1))
14841 }
14842
14843 fn minus(&self, other: Self) -> u32 {
14844 self.0 - other.0
14845 }
14846}
14847
14848impl RowExt for MultiBufferRow {
14849 fn as_f32(&self) -> f32 {
14850 self.0 as f32
14851 }
14852
14853 fn next_row(&self) -> Self {
14854 Self(self.0 + 1)
14855 }
14856
14857 fn previous_row(&self) -> Self {
14858 Self(self.0.saturating_sub(1))
14859 }
14860
14861 fn minus(&self, other: Self) -> u32 {
14862 self.0 - other.0
14863 }
14864}
14865
14866trait RowRangeExt {
14867 type Row;
14868
14869 fn len(&self) -> usize;
14870
14871 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14872}
14873
14874impl RowRangeExt for Range<MultiBufferRow> {
14875 type Row = MultiBufferRow;
14876
14877 fn len(&self) -> usize {
14878 (self.end.0 - self.start.0) as usize
14879 }
14880
14881 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14882 (self.start.0..self.end.0).map(MultiBufferRow)
14883 }
14884}
14885
14886impl RowRangeExt for Range<DisplayRow> {
14887 type Row = DisplayRow;
14888
14889 fn len(&self) -> usize {
14890 (self.end.0 - self.start.0) as usize
14891 }
14892
14893 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14894 (self.start.0..self.end.0).map(DisplayRow)
14895 }
14896}
14897
14898fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14899 if hunk.diff_base_byte_range.is_empty() {
14900 DiffHunkStatus::Added
14901 } else if hunk.row_range.is_empty() {
14902 DiffHunkStatus::Removed
14903 } else {
14904 DiffHunkStatus::Modified
14905 }
14906}
14907
14908/// If select range has more than one line, we
14909/// just point the cursor to range.start.
14910fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14911 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14912 range
14913 } else {
14914 range.start..range.start
14915 }
14916}
14917
14918pub struct KillRing(ClipboardItem);
14919impl Global for KillRing {}
14920
14921const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);