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 .map(|(range, new_text)| {
4741 (
4742 multibuffer
4743 .anchor_in_excerpt(excerpt_id, range.start)
4744 .unwrap()
4745 ..multibuffer
4746 .anchor_in_excerpt(excerpt_id, range.end)
4747 .unwrap(),
4748 new_text,
4749 )
4750 })
4751 .collect::<Vec<_>>();
4752 if edits.is_empty() {
4753 return None;
4754 }
4755
4756 let first_edit_start = edits.first().unwrap().0.start;
4757 let edit_start_row = first_edit_start
4758 .to_point(&multibuffer)
4759 .row
4760 .saturating_sub(2);
4761
4762 let last_edit_end = edits.last().unwrap().0.end;
4763 let edit_end_row = cmp::min(
4764 multibuffer.max_point().row,
4765 last_edit_end.to_point(&multibuffer).row + 2,
4766 );
4767
4768 let cursor_row = cursor.to_point(&multibuffer).row;
4769
4770 let mut inlay_ids = Vec::new();
4771 let invalidation_row_range;
4772 let completion;
4773 if cursor_row < edit_start_row {
4774 invalidation_row_range = cursor_row..edit_end_row;
4775 completion = InlineCompletion::Move(first_edit_start);
4776 } else if cursor_row > edit_end_row {
4777 invalidation_row_range = edit_start_row..cursor_row;
4778 completion = InlineCompletion::Move(first_edit_start);
4779 } else {
4780 if !self.has_active_completions_menu() {
4781 if edits
4782 .iter()
4783 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4784 {
4785 let mut inlays = Vec::new();
4786 for (range, new_text) in &edits {
4787 let inlay = Inlay::inline_completion(
4788 post_inc(&mut self.next_inlay_id),
4789 range.start,
4790 new_text.as_str(),
4791 );
4792 inlay_ids.push(inlay.id);
4793 inlays.push(inlay);
4794 }
4795
4796 self.splice_inlays(vec![], inlays, cx);
4797 } else {
4798 let background_color = cx.theme().status().deleted_background;
4799 self.highlight_text::<InlineCompletionHighlight>(
4800 edits.iter().map(|(range, _)| range.clone()).collect(),
4801 HighlightStyle {
4802 background_color: Some(background_color),
4803 ..Default::default()
4804 },
4805 cx,
4806 );
4807 }
4808 }
4809
4810 invalidation_row_range = edit_start_row..edit_end_row;
4811 completion = InlineCompletion::Edit(edits);
4812 };
4813
4814 let invalidation_range = multibuffer
4815 .anchor_before(Point::new(invalidation_row_range.start, 0))
4816 ..multibuffer.anchor_after(Point::new(
4817 invalidation_row_range.end,
4818 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4819 ));
4820
4821 self.active_inline_completion = Some(InlineCompletionState {
4822 inlay_ids,
4823 completion,
4824 invalidation_range,
4825 });
4826
4827 if self.has_active_completions_menu() {
4828 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4829 match self.context_menu.borrow_mut().as_mut() {
4830 Some(CodeContextMenu::Completions(menu)) => {
4831 menu.show_inline_completion_hint(hint);
4832 }
4833 _ => {}
4834 }
4835 }
4836 }
4837
4838 cx.notify();
4839
4840 Some(())
4841 }
4842
4843 fn inline_completion_menu_hint(
4844 &mut self,
4845 cx: &mut ViewContext<Self>,
4846 ) -> Option<InlineCompletionMenuHint> {
4847 if self.has_active_inline_completion() {
4848 let provider_name = self.inline_completion_provider()?.display_name();
4849 let editor_snapshot = self.snapshot(cx);
4850
4851 let text = match &self.active_inline_completion.as_ref()?.completion {
4852 InlineCompletion::Edit(edits) => {
4853 inline_completion_edit_text(&editor_snapshot, edits, cx)
4854 }
4855 InlineCompletion::Move(target) => {
4856 let target_point =
4857 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4858 let target_line = target_point.row + 1;
4859 InlineCompletionText::Move(
4860 format!("Jump to edit in line {}", target_line).into(),
4861 )
4862 }
4863 };
4864
4865 Some(InlineCompletionMenuHint {
4866 provider_name,
4867 text,
4868 })
4869 } else {
4870 None
4871 }
4872 }
4873
4874 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4875 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4876 }
4877
4878 fn render_code_actions_indicator(
4879 &self,
4880 _style: &EditorStyle,
4881 row: DisplayRow,
4882 is_active: bool,
4883 cx: &mut ViewContext<Self>,
4884 ) -> Option<IconButton> {
4885 if self.available_code_actions.is_some() {
4886 Some(
4887 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4888 .shape(ui::IconButtonShape::Square)
4889 .icon_size(IconSize::XSmall)
4890 .icon_color(Color::Muted)
4891 .toggle_state(is_active)
4892 .tooltip({
4893 let focus_handle = self.focus_handle.clone();
4894 move |cx| {
4895 Tooltip::for_action_in(
4896 "Toggle Code Actions",
4897 &ToggleCodeActions {
4898 deployed_from_indicator: None,
4899 },
4900 &focus_handle,
4901 cx,
4902 )
4903 }
4904 })
4905 .on_click(cx.listener(move |editor, _e, cx| {
4906 editor.focus(cx);
4907 editor.toggle_code_actions(
4908 &ToggleCodeActions {
4909 deployed_from_indicator: Some(row),
4910 },
4911 cx,
4912 );
4913 })),
4914 )
4915 } else {
4916 None
4917 }
4918 }
4919
4920 fn clear_tasks(&mut self) {
4921 self.tasks.clear()
4922 }
4923
4924 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4925 if self.tasks.insert(key, value).is_some() {
4926 // This case should hopefully be rare, but just in case...
4927 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4928 }
4929 }
4930
4931 fn build_tasks_context(
4932 project: &Model<Project>,
4933 buffer: &Model<Buffer>,
4934 buffer_row: u32,
4935 tasks: &Arc<RunnableTasks>,
4936 cx: &mut ViewContext<Self>,
4937 ) -> Task<Option<task::TaskContext>> {
4938 let position = Point::new(buffer_row, tasks.column);
4939 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4940 let location = Location {
4941 buffer: buffer.clone(),
4942 range: range_start..range_start,
4943 };
4944 // Fill in the environmental variables from the tree-sitter captures
4945 let mut captured_task_variables = TaskVariables::default();
4946 for (capture_name, value) in tasks.extra_variables.clone() {
4947 captured_task_variables.insert(
4948 task::VariableName::Custom(capture_name.into()),
4949 value.clone(),
4950 );
4951 }
4952 project.update(cx, |project, cx| {
4953 project.task_store().update(cx, |task_store, cx| {
4954 task_store.task_context_for_location(captured_task_variables, location, cx)
4955 })
4956 })
4957 }
4958
4959 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4960 let Some((workspace, _)) = self.workspace.clone() else {
4961 return;
4962 };
4963 let Some(project) = self.project.clone() else {
4964 return;
4965 };
4966
4967 // Try to find a closest, enclosing node using tree-sitter that has a
4968 // task
4969 let Some((buffer, buffer_row, tasks)) = self
4970 .find_enclosing_node_task(cx)
4971 // Or find the task that's closest in row-distance.
4972 .or_else(|| self.find_closest_task(cx))
4973 else {
4974 return;
4975 };
4976
4977 let reveal_strategy = action.reveal;
4978 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4979 cx.spawn(|_, mut cx| async move {
4980 let context = task_context.await?;
4981 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
4982
4983 let resolved = resolved_task.resolved.as_mut()?;
4984 resolved.reveal = reveal_strategy;
4985
4986 workspace
4987 .update(&mut cx, |workspace, cx| {
4988 workspace::tasks::schedule_resolved_task(
4989 workspace,
4990 task_source_kind,
4991 resolved_task,
4992 false,
4993 cx,
4994 );
4995 })
4996 .ok()
4997 })
4998 .detach();
4999 }
5000
5001 fn find_closest_task(
5002 &mut self,
5003 cx: &mut ViewContext<Self>,
5004 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5005 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5006
5007 let ((buffer_id, row), tasks) = self
5008 .tasks
5009 .iter()
5010 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5011
5012 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5013 let tasks = Arc::new(tasks.to_owned());
5014 Some((buffer, *row, tasks))
5015 }
5016
5017 fn find_enclosing_node_task(
5018 &mut self,
5019 cx: &mut ViewContext<Self>,
5020 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5021 let snapshot = self.buffer.read(cx).snapshot(cx);
5022 let offset = self.selections.newest::<usize>(cx).head();
5023 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5024 let buffer_id = excerpt.buffer().remote_id();
5025
5026 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5027 let mut cursor = layer.node().walk();
5028
5029 while cursor.goto_first_child_for_byte(offset).is_some() {
5030 if cursor.node().end_byte() == offset {
5031 cursor.goto_next_sibling();
5032 }
5033 }
5034
5035 // Ascend to the smallest ancestor that contains the range and has a task.
5036 loop {
5037 let node = cursor.node();
5038 let node_range = node.byte_range();
5039 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5040
5041 // Check if this node contains our offset
5042 if node_range.start <= offset && node_range.end >= offset {
5043 // If it contains offset, check for task
5044 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5045 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5046 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5047 }
5048 }
5049
5050 if !cursor.goto_parent() {
5051 break;
5052 }
5053 }
5054 None
5055 }
5056
5057 fn render_run_indicator(
5058 &self,
5059 _style: &EditorStyle,
5060 is_active: bool,
5061 row: DisplayRow,
5062 cx: &mut ViewContext<Self>,
5063 ) -> IconButton {
5064 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5065 .shape(ui::IconButtonShape::Square)
5066 .icon_size(IconSize::XSmall)
5067 .icon_color(Color::Muted)
5068 .toggle_state(is_active)
5069 .on_click(cx.listener(move |editor, _e, cx| {
5070 editor.focus(cx);
5071 editor.toggle_code_actions(
5072 &ToggleCodeActions {
5073 deployed_from_indicator: Some(row),
5074 },
5075 cx,
5076 );
5077 }))
5078 }
5079
5080 #[cfg(feature = "test-support")]
5081 pub fn context_menu_visible(&self) -> bool {
5082 self.context_menu
5083 .borrow()
5084 .as_ref()
5085 .map_or(false, |menu| menu.visible())
5086 }
5087
5088 #[cfg(feature = "test-support")]
5089 pub fn context_menu_contains_inline_completion(&self) -> bool {
5090 self.context_menu
5091 .borrow()
5092 .as_ref()
5093 .map_or(false, |menu| match menu {
5094 CodeContextMenu::Completions(menu) => menu.entries.first().map_or(false, |entry| {
5095 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5096 }),
5097 CodeContextMenu::CodeActions(_) => false,
5098 })
5099 }
5100
5101 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5102 self.context_menu
5103 .borrow()
5104 .as_ref()
5105 .map(|menu| menu.origin(cursor_position))
5106 }
5107
5108 fn render_context_menu(
5109 &self,
5110 style: &EditorStyle,
5111 max_height_in_lines: u32,
5112 cx: &mut ViewContext<Editor>,
5113 ) -> Option<AnyElement> {
5114 self.context_menu.borrow().as_ref().and_then(|menu| {
5115 if menu.visible() {
5116 Some(menu.render(style, max_height_in_lines, cx))
5117 } else {
5118 None
5119 }
5120 })
5121 }
5122
5123 fn render_context_menu_aside(
5124 &self,
5125 style: &EditorStyle,
5126 max_height: Pixels,
5127 cx: &mut ViewContext<Editor>,
5128 ) -> Option<AnyElement> {
5129 self.context_menu.borrow().as_ref().and_then(|menu| {
5130 if menu.visible() {
5131 menu.render_aside(
5132 style,
5133 max_height,
5134 self.workspace.as_ref().map(|(w, _)| w.clone()),
5135 cx,
5136 )
5137 } else {
5138 None
5139 }
5140 })
5141 }
5142
5143 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5144 cx.notify();
5145 self.completion_tasks.clear();
5146 self.context_menu.borrow_mut().take()
5147 }
5148
5149 fn show_snippet_choices(
5150 &mut self,
5151 choices: &Vec<String>,
5152 selection: Range<Anchor>,
5153 cx: &mut ViewContext<Self>,
5154 ) {
5155 if selection.start.buffer_id.is_none() {
5156 return;
5157 }
5158 let buffer_id = selection.start.buffer_id.unwrap();
5159 let buffer = self.buffer().read(cx).buffer(buffer_id);
5160 let id = post_inc(&mut self.next_completion_id);
5161
5162 if let Some(buffer) = buffer {
5163 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5164 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5165 ));
5166 }
5167 }
5168
5169 pub fn insert_snippet(
5170 &mut self,
5171 insertion_ranges: &[Range<usize>],
5172 snippet: Snippet,
5173 cx: &mut ViewContext<Self>,
5174 ) -> Result<()> {
5175 struct Tabstop<T> {
5176 is_end_tabstop: bool,
5177 ranges: Vec<Range<T>>,
5178 choices: Option<Vec<String>>,
5179 }
5180
5181 let tabstops = self.buffer.update(cx, |buffer, cx| {
5182 let snippet_text: Arc<str> = snippet.text.clone().into();
5183 buffer.edit(
5184 insertion_ranges
5185 .iter()
5186 .cloned()
5187 .map(|range| (range, snippet_text.clone())),
5188 Some(AutoindentMode::EachLine),
5189 cx,
5190 );
5191
5192 let snapshot = &*buffer.read(cx);
5193 let snippet = &snippet;
5194 snippet
5195 .tabstops
5196 .iter()
5197 .map(|tabstop| {
5198 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5199 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5200 });
5201 let mut tabstop_ranges = tabstop
5202 .ranges
5203 .iter()
5204 .flat_map(|tabstop_range| {
5205 let mut delta = 0_isize;
5206 insertion_ranges.iter().map(move |insertion_range| {
5207 let insertion_start = insertion_range.start as isize + delta;
5208 delta +=
5209 snippet.text.len() as isize - insertion_range.len() as isize;
5210
5211 let start = ((insertion_start + tabstop_range.start) as usize)
5212 .min(snapshot.len());
5213 let end = ((insertion_start + tabstop_range.end) as usize)
5214 .min(snapshot.len());
5215 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5216 })
5217 })
5218 .collect::<Vec<_>>();
5219 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5220
5221 Tabstop {
5222 is_end_tabstop,
5223 ranges: tabstop_ranges,
5224 choices: tabstop.choices.clone(),
5225 }
5226 })
5227 .collect::<Vec<_>>()
5228 });
5229 if let Some(tabstop) = tabstops.first() {
5230 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5231 s.select_ranges(tabstop.ranges.iter().cloned());
5232 });
5233
5234 if let Some(choices) = &tabstop.choices {
5235 if let Some(selection) = tabstop.ranges.first() {
5236 self.show_snippet_choices(choices, selection.clone(), cx)
5237 }
5238 }
5239
5240 // If we're already at the last tabstop and it's at the end of the snippet,
5241 // we're done, we don't need to keep the state around.
5242 if !tabstop.is_end_tabstop {
5243 let choices = tabstops
5244 .iter()
5245 .map(|tabstop| tabstop.choices.clone())
5246 .collect();
5247
5248 let ranges = tabstops
5249 .into_iter()
5250 .map(|tabstop| tabstop.ranges)
5251 .collect::<Vec<_>>();
5252
5253 self.snippet_stack.push(SnippetState {
5254 active_index: 0,
5255 ranges,
5256 choices,
5257 });
5258 }
5259
5260 // Check whether the just-entered snippet ends with an auto-closable bracket.
5261 if self.autoclose_regions.is_empty() {
5262 let snapshot = self.buffer.read(cx).snapshot(cx);
5263 for selection in &mut self.selections.all::<Point>(cx) {
5264 let selection_head = selection.head();
5265 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5266 continue;
5267 };
5268
5269 let mut bracket_pair = None;
5270 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5271 let prev_chars = snapshot
5272 .reversed_chars_at(selection_head)
5273 .collect::<String>();
5274 for (pair, enabled) in scope.brackets() {
5275 if enabled
5276 && pair.close
5277 && prev_chars.starts_with(pair.start.as_str())
5278 && next_chars.starts_with(pair.end.as_str())
5279 {
5280 bracket_pair = Some(pair.clone());
5281 break;
5282 }
5283 }
5284 if let Some(pair) = bracket_pair {
5285 let start = snapshot.anchor_after(selection_head);
5286 let end = snapshot.anchor_after(selection_head);
5287 self.autoclose_regions.push(AutocloseRegion {
5288 selection_id: selection.id,
5289 range: start..end,
5290 pair,
5291 });
5292 }
5293 }
5294 }
5295 }
5296 Ok(())
5297 }
5298
5299 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5300 self.move_to_snippet_tabstop(Bias::Right, cx)
5301 }
5302
5303 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5304 self.move_to_snippet_tabstop(Bias::Left, cx)
5305 }
5306
5307 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5308 if let Some(mut snippet) = self.snippet_stack.pop() {
5309 match bias {
5310 Bias::Left => {
5311 if snippet.active_index > 0 {
5312 snippet.active_index -= 1;
5313 } else {
5314 self.snippet_stack.push(snippet);
5315 return false;
5316 }
5317 }
5318 Bias::Right => {
5319 if snippet.active_index + 1 < snippet.ranges.len() {
5320 snippet.active_index += 1;
5321 } else {
5322 self.snippet_stack.push(snippet);
5323 return false;
5324 }
5325 }
5326 }
5327 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5328 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5329 s.select_anchor_ranges(current_ranges.iter().cloned())
5330 });
5331
5332 if let Some(choices) = &snippet.choices[snippet.active_index] {
5333 if let Some(selection) = current_ranges.first() {
5334 self.show_snippet_choices(&choices, selection.clone(), cx);
5335 }
5336 }
5337
5338 // If snippet state is not at the last tabstop, push it back on the stack
5339 if snippet.active_index + 1 < snippet.ranges.len() {
5340 self.snippet_stack.push(snippet);
5341 }
5342 return true;
5343 }
5344 }
5345
5346 false
5347 }
5348
5349 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5350 self.transact(cx, |this, cx| {
5351 this.select_all(&SelectAll, cx);
5352 this.insert("", cx);
5353 });
5354 }
5355
5356 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5357 self.transact(cx, |this, cx| {
5358 this.select_autoclose_pair(cx);
5359 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5360 if !this.linked_edit_ranges.is_empty() {
5361 let selections = this.selections.all::<MultiBufferPoint>(cx);
5362 let snapshot = this.buffer.read(cx).snapshot(cx);
5363
5364 for selection in selections.iter() {
5365 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5366 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5367 if selection_start.buffer_id != selection_end.buffer_id {
5368 continue;
5369 }
5370 if let Some(ranges) =
5371 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5372 {
5373 for (buffer, entries) in ranges {
5374 linked_ranges.entry(buffer).or_default().extend(entries);
5375 }
5376 }
5377 }
5378 }
5379
5380 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5381 if !this.selections.line_mode {
5382 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5383 for selection in &mut selections {
5384 if selection.is_empty() {
5385 let old_head = selection.head();
5386 let mut new_head =
5387 movement::left(&display_map, old_head.to_display_point(&display_map))
5388 .to_point(&display_map);
5389 if let Some((buffer, line_buffer_range)) = display_map
5390 .buffer_snapshot
5391 .buffer_line_for_row(MultiBufferRow(old_head.row))
5392 {
5393 let indent_size =
5394 buffer.indent_size_for_line(line_buffer_range.start.row);
5395 let indent_len = match indent_size.kind {
5396 IndentKind::Space => {
5397 buffer.settings_at(line_buffer_range.start, cx).tab_size
5398 }
5399 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5400 };
5401 if old_head.column <= indent_size.len && old_head.column > 0 {
5402 let indent_len = indent_len.get();
5403 new_head = cmp::min(
5404 new_head,
5405 MultiBufferPoint::new(
5406 old_head.row,
5407 ((old_head.column - 1) / indent_len) * indent_len,
5408 ),
5409 );
5410 }
5411 }
5412
5413 selection.set_head(new_head, SelectionGoal::None);
5414 }
5415 }
5416 }
5417
5418 this.signature_help_state.set_backspace_pressed(true);
5419 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5420 this.insert("", cx);
5421 let empty_str: Arc<str> = Arc::from("");
5422 for (buffer, edits) in linked_ranges {
5423 let snapshot = buffer.read(cx).snapshot();
5424 use text::ToPoint as TP;
5425
5426 let edits = edits
5427 .into_iter()
5428 .map(|range| {
5429 let end_point = TP::to_point(&range.end, &snapshot);
5430 let mut start_point = TP::to_point(&range.start, &snapshot);
5431
5432 if end_point == start_point {
5433 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5434 .saturating_sub(1);
5435 start_point =
5436 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5437 };
5438
5439 (start_point..end_point, empty_str.clone())
5440 })
5441 .sorted_by_key(|(range, _)| range.start)
5442 .collect::<Vec<_>>();
5443 buffer.update(cx, |this, cx| {
5444 this.edit(edits, None, cx);
5445 })
5446 }
5447 this.refresh_inline_completion(true, false, cx);
5448 linked_editing_ranges::refresh_linked_ranges(this, cx);
5449 });
5450 }
5451
5452 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5453 self.transact(cx, |this, cx| {
5454 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5455 let line_mode = s.line_mode;
5456 s.move_with(|map, selection| {
5457 if selection.is_empty() && !line_mode {
5458 let cursor = movement::right(map, selection.head());
5459 selection.end = cursor;
5460 selection.reversed = true;
5461 selection.goal = SelectionGoal::None;
5462 }
5463 })
5464 });
5465 this.insert("", cx);
5466 this.refresh_inline_completion(true, false, cx);
5467 });
5468 }
5469
5470 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5471 if self.move_to_prev_snippet_tabstop(cx) {
5472 return;
5473 }
5474
5475 self.outdent(&Outdent, cx);
5476 }
5477
5478 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5479 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5480 return;
5481 }
5482
5483 let mut selections = self.selections.all_adjusted(cx);
5484 let buffer = self.buffer.read(cx);
5485 let snapshot = buffer.snapshot(cx);
5486 let rows_iter = selections.iter().map(|s| s.head().row);
5487 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5488
5489 let mut edits = Vec::new();
5490 let mut prev_edited_row = 0;
5491 let mut row_delta = 0;
5492 for selection in &mut selections {
5493 if selection.start.row != prev_edited_row {
5494 row_delta = 0;
5495 }
5496 prev_edited_row = selection.end.row;
5497
5498 // If the selection is non-empty, then increase the indentation of the selected lines.
5499 if !selection.is_empty() {
5500 row_delta =
5501 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5502 continue;
5503 }
5504
5505 // If the selection is empty and the cursor is in the leading whitespace before the
5506 // suggested indentation, then auto-indent the line.
5507 let cursor = selection.head();
5508 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5509 if let Some(suggested_indent) =
5510 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5511 {
5512 if cursor.column < suggested_indent.len
5513 && cursor.column <= current_indent.len
5514 && current_indent.len <= suggested_indent.len
5515 {
5516 selection.start = Point::new(cursor.row, suggested_indent.len);
5517 selection.end = selection.start;
5518 if row_delta == 0 {
5519 edits.extend(Buffer::edit_for_indent_size_adjustment(
5520 cursor.row,
5521 current_indent,
5522 suggested_indent,
5523 ));
5524 row_delta = suggested_indent.len - current_indent.len;
5525 }
5526 continue;
5527 }
5528 }
5529
5530 // Otherwise, insert a hard or soft tab.
5531 let settings = buffer.settings_at(cursor, cx);
5532 let tab_size = if settings.hard_tabs {
5533 IndentSize::tab()
5534 } else {
5535 let tab_size = settings.tab_size.get();
5536 let char_column = snapshot
5537 .text_for_range(Point::new(cursor.row, 0)..cursor)
5538 .flat_map(str::chars)
5539 .count()
5540 + row_delta as usize;
5541 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5542 IndentSize::spaces(chars_to_next_tab_stop)
5543 };
5544 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5545 selection.end = selection.start;
5546 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5547 row_delta += tab_size.len;
5548 }
5549
5550 self.transact(cx, |this, cx| {
5551 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5552 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5553 this.refresh_inline_completion(true, false, cx);
5554 });
5555 }
5556
5557 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5558 if self.read_only(cx) {
5559 return;
5560 }
5561 let mut selections = self.selections.all::<Point>(cx);
5562 let mut prev_edited_row = 0;
5563 let mut row_delta = 0;
5564 let mut edits = Vec::new();
5565 let buffer = self.buffer.read(cx);
5566 let snapshot = buffer.snapshot(cx);
5567 for selection in &mut selections {
5568 if selection.start.row != prev_edited_row {
5569 row_delta = 0;
5570 }
5571 prev_edited_row = selection.end.row;
5572
5573 row_delta =
5574 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5575 }
5576
5577 self.transact(cx, |this, cx| {
5578 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5579 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5580 });
5581 }
5582
5583 fn indent_selection(
5584 buffer: &MultiBuffer,
5585 snapshot: &MultiBufferSnapshot,
5586 selection: &mut Selection<Point>,
5587 edits: &mut Vec<(Range<Point>, String)>,
5588 delta_for_start_row: u32,
5589 cx: &AppContext,
5590 ) -> u32 {
5591 let settings = buffer.settings_at(selection.start, cx);
5592 let tab_size = settings.tab_size.get();
5593 let indent_kind = if settings.hard_tabs {
5594 IndentKind::Tab
5595 } else {
5596 IndentKind::Space
5597 };
5598 let mut start_row = selection.start.row;
5599 let mut end_row = selection.end.row + 1;
5600
5601 // If a selection ends at the beginning of a line, don't indent
5602 // that last line.
5603 if selection.end.column == 0 && selection.end.row > selection.start.row {
5604 end_row -= 1;
5605 }
5606
5607 // Avoid re-indenting a row that has already been indented by a
5608 // previous selection, but still update this selection's column
5609 // to reflect that indentation.
5610 if delta_for_start_row > 0 {
5611 start_row += 1;
5612 selection.start.column += delta_for_start_row;
5613 if selection.end.row == selection.start.row {
5614 selection.end.column += delta_for_start_row;
5615 }
5616 }
5617
5618 let mut delta_for_end_row = 0;
5619 let has_multiple_rows = start_row + 1 != end_row;
5620 for row in start_row..end_row {
5621 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5622 let indent_delta = match (current_indent.kind, indent_kind) {
5623 (IndentKind::Space, IndentKind::Space) => {
5624 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5625 IndentSize::spaces(columns_to_next_tab_stop)
5626 }
5627 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5628 (_, IndentKind::Tab) => IndentSize::tab(),
5629 };
5630
5631 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5632 0
5633 } else {
5634 selection.start.column
5635 };
5636 let row_start = Point::new(row, start);
5637 edits.push((
5638 row_start..row_start,
5639 indent_delta.chars().collect::<String>(),
5640 ));
5641
5642 // Update this selection's endpoints to reflect the indentation.
5643 if row == selection.start.row {
5644 selection.start.column += indent_delta.len;
5645 }
5646 if row == selection.end.row {
5647 selection.end.column += indent_delta.len;
5648 delta_for_end_row = indent_delta.len;
5649 }
5650 }
5651
5652 if selection.start.row == selection.end.row {
5653 delta_for_start_row + delta_for_end_row
5654 } else {
5655 delta_for_end_row
5656 }
5657 }
5658
5659 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5660 if self.read_only(cx) {
5661 return;
5662 }
5663 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5664 let selections = self.selections.all::<Point>(cx);
5665 let mut deletion_ranges = Vec::new();
5666 let mut last_outdent = None;
5667 {
5668 let buffer = self.buffer.read(cx);
5669 let snapshot = buffer.snapshot(cx);
5670 for selection in &selections {
5671 let settings = buffer.settings_at(selection.start, cx);
5672 let tab_size = settings.tab_size.get();
5673 let mut rows = selection.spanned_rows(false, &display_map);
5674
5675 // Avoid re-outdenting a row that has already been outdented by a
5676 // previous selection.
5677 if let Some(last_row) = last_outdent {
5678 if last_row == rows.start {
5679 rows.start = rows.start.next_row();
5680 }
5681 }
5682 let has_multiple_rows = rows.len() > 1;
5683 for row in rows.iter_rows() {
5684 let indent_size = snapshot.indent_size_for_line(row);
5685 if indent_size.len > 0 {
5686 let deletion_len = match indent_size.kind {
5687 IndentKind::Space => {
5688 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5689 if columns_to_prev_tab_stop == 0 {
5690 tab_size
5691 } else {
5692 columns_to_prev_tab_stop
5693 }
5694 }
5695 IndentKind::Tab => 1,
5696 };
5697 let start = if has_multiple_rows
5698 || deletion_len > selection.start.column
5699 || indent_size.len < selection.start.column
5700 {
5701 0
5702 } else {
5703 selection.start.column - deletion_len
5704 };
5705 deletion_ranges.push(
5706 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5707 );
5708 last_outdent = Some(row);
5709 }
5710 }
5711 }
5712 }
5713
5714 self.transact(cx, |this, cx| {
5715 this.buffer.update(cx, |buffer, cx| {
5716 let empty_str: Arc<str> = Arc::default();
5717 buffer.edit(
5718 deletion_ranges
5719 .into_iter()
5720 .map(|range| (range, empty_str.clone())),
5721 None,
5722 cx,
5723 );
5724 });
5725 let selections = this.selections.all::<usize>(cx);
5726 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5727 });
5728 }
5729
5730 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5731 if self.read_only(cx) {
5732 return;
5733 }
5734 let selections = self
5735 .selections
5736 .all::<usize>(cx)
5737 .into_iter()
5738 .map(|s| s.range());
5739
5740 self.transact(cx, |this, cx| {
5741 this.buffer.update(cx, |buffer, cx| {
5742 buffer.autoindent_ranges(selections, cx);
5743 });
5744 let selections = this.selections.all::<usize>(cx);
5745 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5746 });
5747 }
5748
5749 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5750 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5751 let selections = self.selections.all::<Point>(cx);
5752
5753 let mut new_cursors = Vec::new();
5754 let mut edit_ranges = Vec::new();
5755 let mut selections = selections.iter().peekable();
5756 while let Some(selection) = selections.next() {
5757 let mut rows = selection.spanned_rows(false, &display_map);
5758 let goal_display_column = selection.head().to_display_point(&display_map).column();
5759
5760 // Accumulate contiguous regions of rows that we want to delete.
5761 while let Some(next_selection) = selections.peek() {
5762 let next_rows = next_selection.spanned_rows(false, &display_map);
5763 if next_rows.start <= rows.end {
5764 rows.end = next_rows.end;
5765 selections.next().unwrap();
5766 } else {
5767 break;
5768 }
5769 }
5770
5771 let buffer = &display_map.buffer_snapshot;
5772 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5773 let edit_end;
5774 let cursor_buffer_row;
5775 if buffer.max_point().row >= rows.end.0 {
5776 // If there's a line after the range, delete the \n from the end of the row range
5777 // and position the cursor on the next line.
5778 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5779 cursor_buffer_row = rows.end;
5780 } else {
5781 // If there isn't a line after the range, delete the \n from the line before the
5782 // start of the row range and position the cursor there.
5783 edit_start = edit_start.saturating_sub(1);
5784 edit_end = buffer.len();
5785 cursor_buffer_row = rows.start.previous_row();
5786 }
5787
5788 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5789 *cursor.column_mut() =
5790 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5791
5792 new_cursors.push((
5793 selection.id,
5794 buffer.anchor_after(cursor.to_point(&display_map)),
5795 ));
5796 edit_ranges.push(edit_start..edit_end);
5797 }
5798
5799 self.transact(cx, |this, cx| {
5800 let buffer = this.buffer.update(cx, |buffer, cx| {
5801 let empty_str: Arc<str> = Arc::default();
5802 buffer.edit(
5803 edit_ranges
5804 .into_iter()
5805 .map(|range| (range, empty_str.clone())),
5806 None,
5807 cx,
5808 );
5809 buffer.snapshot(cx)
5810 });
5811 let new_selections = new_cursors
5812 .into_iter()
5813 .map(|(id, cursor)| {
5814 let cursor = cursor.to_point(&buffer);
5815 Selection {
5816 id,
5817 start: cursor,
5818 end: cursor,
5819 reversed: false,
5820 goal: SelectionGoal::None,
5821 }
5822 })
5823 .collect();
5824
5825 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5826 s.select(new_selections);
5827 });
5828 });
5829 }
5830
5831 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5832 if self.read_only(cx) {
5833 return;
5834 }
5835 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5836 for selection in self.selections.all::<Point>(cx) {
5837 let start = MultiBufferRow(selection.start.row);
5838 // Treat single line selections as if they include the next line. Otherwise this action
5839 // would do nothing for single line selections individual cursors.
5840 let end = if selection.start.row == selection.end.row {
5841 MultiBufferRow(selection.start.row + 1)
5842 } else {
5843 MultiBufferRow(selection.end.row)
5844 };
5845
5846 if let Some(last_row_range) = row_ranges.last_mut() {
5847 if start <= last_row_range.end {
5848 last_row_range.end = end;
5849 continue;
5850 }
5851 }
5852 row_ranges.push(start..end);
5853 }
5854
5855 let snapshot = self.buffer.read(cx).snapshot(cx);
5856 let mut cursor_positions = Vec::new();
5857 for row_range in &row_ranges {
5858 let anchor = snapshot.anchor_before(Point::new(
5859 row_range.end.previous_row().0,
5860 snapshot.line_len(row_range.end.previous_row()),
5861 ));
5862 cursor_positions.push(anchor..anchor);
5863 }
5864
5865 self.transact(cx, |this, cx| {
5866 for row_range in row_ranges.into_iter().rev() {
5867 for row in row_range.iter_rows().rev() {
5868 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5869 let next_line_row = row.next_row();
5870 let indent = snapshot.indent_size_for_line(next_line_row);
5871 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5872
5873 let replace = if snapshot.line_len(next_line_row) > indent.len {
5874 " "
5875 } else {
5876 ""
5877 };
5878
5879 this.buffer.update(cx, |buffer, cx| {
5880 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5881 });
5882 }
5883 }
5884
5885 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5886 s.select_anchor_ranges(cursor_positions)
5887 });
5888 });
5889 }
5890
5891 pub fn sort_lines_case_sensitive(
5892 &mut self,
5893 _: &SortLinesCaseSensitive,
5894 cx: &mut ViewContext<Self>,
5895 ) {
5896 self.manipulate_lines(cx, |lines| lines.sort())
5897 }
5898
5899 pub fn sort_lines_case_insensitive(
5900 &mut self,
5901 _: &SortLinesCaseInsensitive,
5902 cx: &mut ViewContext<Self>,
5903 ) {
5904 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5905 }
5906
5907 pub fn unique_lines_case_insensitive(
5908 &mut self,
5909 _: &UniqueLinesCaseInsensitive,
5910 cx: &mut ViewContext<Self>,
5911 ) {
5912 self.manipulate_lines(cx, |lines| {
5913 let mut seen = HashSet::default();
5914 lines.retain(|line| seen.insert(line.to_lowercase()));
5915 })
5916 }
5917
5918 pub fn unique_lines_case_sensitive(
5919 &mut self,
5920 _: &UniqueLinesCaseSensitive,
5921 cx: &mut ViewContext<Self>,
5922 ) {
5923 self.manipulate_lines(cx, |lines| {
5924 let mut seen = HashSet::default();
5925 lines.retain(|line| seen.insert(*line));
5926 })
5927 }
5928
5929 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5930 let mut revert_changes = HashMap::default();
5931 let snapshot = self.snapshot(cx);
5932 for hunk in hunks_for_ranges(
5933 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5934 &snapshot,
5935 ) {
5936 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5937 }
5938 if !revert_changes.is_empty() {
5939 self.transact(cx, |editor, cx| {
5940 editor.revert(revert_changes, cx);
5941 });
5942 }
5943 }
5944
5945 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5946 let Some(project) = self.project.clone() else {
5947 return;
5948 };
5949 self.reload(project, cx).detach_and_notify_err(cx);
5950 }
5951
5952 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5953 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5954 if !revert_changes.is_empty() {
5955 self.transact(cx, |editor, cx| {
5956 editor.revert(revert_changes, cx);
5957 });
5958 }
5959 }
5960
5961 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5962 let snapshot = self.buffer.read(cx).read(cx);
5963 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5964 drop(snapshot);
5965 let mut revert_changes = HashMap::default();
5966 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5967 if !revert_changes.is_empty() {
5968 self.revert(revert_changes, cx)
5969 }
5970 }
5971 }
5972
5973 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5974 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5975 let project_path = buffer.read(cx).project_path(cx)?;
5976 let project = self.project.as_ref()?.read(cx);
5977 let entry = project.entry_for_path(&project_path, cx)?;
5978 let parent = match &entry.canonical_path {
5979 Some(canonical_path) => canonical_path.to_path_buf(),
5980 None => project.absolute_path(&project_path, cx)?,
5981 }
5982 .parent()?
5983 .to_path_buf();
5984 Some(parent)
5985 }) {
5986 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5987 }
5988 }
5989
5990 fn gather_revert_changes(
5991 &mut self,
5992 selections: &[Selection<Point>],
5993 cx: &mut ViewContext<'_, Editor>,
5994 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5995 let mut revert_changes = HashMap::default();
5996 let snapshot = self.snapshot(cx);
5997 for hunk in hunks_for_selections(&snapshot, selections) {
5998 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5999 }
6000 revert_changes
6001 }
6002
6003 pub fn prepare_revert_change(
6004 &mut self,
6005 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6006 hunk: &MultiBufferDiffHunk,
6007 cx: &AppContext,
6008 ) -> Option<()> {
6009 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6010 let buffer = buffer.read(cx);
6011 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6012 let original_text = change_set
6013 .read(cx)
6014 .base_text
6015 .as_ref()?
6016 .read(cx)
6017 .as_rope()
6018 .slice(hunk.diff_base_byte_range.clone());
6019 let buffer_snapshot = buffer.snapshot();
6020 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6021 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6022 probe
6023 .0
6024 .start
6025 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6026 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6027 }) {
6028 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6029 Some(())
6030 } else {
6031 None
6032 }
6033 }
6034
6035 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6036 self.manipulate_lines(cx, |lines| lines.reverse())
6037 }
6038
6039 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6040 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6041 }
6042
6043 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6044 where
6045 Fn: FnMut(&mut Vec<&str>),
6046 {
6047 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6048 let buffer = self.buffer.read(cx).snapshot(cx);
6049
6050 let mut edits = Vec::new();
6051
6052 let selections = self.selections.all::<Point>(cx);
6053 let mut selections = selections.iter().peekable();
6054 let mut contiguous_row_selections = Vec::new();
6055 let mut new_selections = Vec::new();
6056 let mut added_lines = 0;
6057 let mut removed_lines = 0;
6058
6059 while let Some(selection) = selections.next() {
6060 let (start_row, end_row) = consume_contiguous_rows(
6061 &mut contiguous_row_selections,
6062 selection,
6063 &display_map,
6064 &mut selections,
6065 );
6066
6067 let start_point = Point::new(start_row.0, 0);
6068 let end_point = Point::new(
6069 end_row.previous_row().0,
6070 buffer.line_len(end_row.previous_row()),
6071 );
6072 let text = buffer
6073 .text_for_range(start_point..end_point)
6074 .collect::<String>();
6075
6076 let mut lines = text.split('\n').collect_vec();
6077
6078 let lines_before = lines.len();
6079 callback(&mut lines);
6080 let lines_after = lines.len();
6081
6082 edits.push((start_point..end_point, lines.join("\n")));
6083
6084 // Selections must change based on added and removed line count
6085 let start_row =
6086 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6087 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6088 new_selections.push(Selection {
6089 id: selection.id,
6090 start: start_row,
6091 end: end_row,
6092 goal: SelectionGoal::None,
6093 reversed: selection.reversed,
6094 });
6095
6096 if lines_after > lines_before {
6097 added_lines += lines_after - lines_before;
6098 } else if lines_before > lines_after {
6099 removed_lines += lines_before - lines_after;
6100 }
6101 }
6102
6103 self.transact(cx, |this, cx| {
6104 let buffer = this.buffer.update(cx, |buffer, cx| {
6105 buffer.edit(edits, None, cx);
6106 buffer.snapshot(cx)
6107 });
6108
6109 // Recalculate offsets on newly edited buffer
6110 let new_selections = new_selections
6111 .iter()
6112 .map(|s| {
6113 let start_point = Point::new(s.start.0, 0);
6114 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6115 Selection {
6116 id: s.id,
6117 start: buffer.point_to_offset(start_point),
6118 end: buffer.point_to_offset(end_point),
6119 goal: s.goal,
6120 reversed: s.reversed,
6121 }
6122 })
6123 .collect();
6124
6125 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6126 s.select(new_selections);
6127 });
6128
6129 this.request_autoscroll(Autoscroll::fit(), cx);
6130 });
6131 }
6132
6133 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6134 self.manipulate_text(cx, |text| text.to_uppercase())
6135 }
6136
6137 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6138 self.manipulate_text(cx, |text| text.to_lowercase())
6139 }
6140
6141 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6142 self.manipulate_text(cx, |text| {
6143 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6144 // https://github.com/rutrum/convert-case/issues/16
6145 text.split('\n')
6146 .map(|line| line.to_case(Case::Title))
6147 .join("\n")
6148 })
6149 }
6150
6151 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6152 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6153 }
6154
6155 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6156 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6157 }
6158
6159 pub fn convert_to_upper_camel_case(
6160 &mut self,
6161 _: &ConvertToUpperCamelCase,
6162 cx: &mut ViewContext<Self>,
6163 ) {
6164 self.manipulate_text(cx, |text| {
6165 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6166 // https://github.com/rutrum/convert-case/issues/16
6167 text.split('\n')
6168 .map(|line| line.to_case(Case::UpperCamel))
6169 .join("\n")
6170 })
6171 }
6172
6173 pub fn convert_to_lower_camel_case(
6174 &mut self,
6175 _: &ConvertToLowerCamelCase,
6176 cx: &mut ViewContext<Self>,
6177 ) {
6178 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6179 }
6180
6181 pub fn convert_to_opposite_case(
6182 &mut self,
6183 _: &ConvertToOppositeCase,
6184 cx: &mut ViewContext<Self>,
6185 ) {
6186 self.manipulate_text(cx, |text| {
6187 text.chars()
6188 .fold(String::with_capacity(text.len()), |mut t, c| {
6189 if c.is_uppercase() {
6190 t.extend(c.to_lowercase());
6191 } else {
6192 t.extend(c.to_uppercase());
6193 }
6194 t
6195 })
6196 })
6197 }
6198
6199 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6200 where
6201 Fn: FnMut(&str) -> String,
6202 {
6203 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6204 let buffer = self.buffer.read(cx).snapshot(cx);
6205
6206 let mut new_selections = Vec::new();
6207 let mut edits = Vec::new();
6208 let mut selection_adjustment = 0i32;
6209
6210 for selection in self.selections.all::<usize>(cx) {
6211 let selection_is_empty = selection.is_empty();
6212
6213 let (start, end) = if selection_is_empty {
6214 let word_range = movement::surrounding_word(
6215 &display_map,
6216 selection.start.to_display_point(&display_map),
6217 );
6218 let start = word_range.start.to_offset(&display_map, Bias::Left);
6219 let end = word_range.end.to_offset(&display_map, Bias::Left);
6220 (start, end)
6221 } else {
6222 (selection.start, selection.end)
6223 };
6224
6225 let text = buffer.text_for_range(start..end).collect::<String>();
6226 let old_length = text.len() as i32;
6227 let text = callback(&text);
6228
6229 new_selections.push(Selection {
6230 start: (start as i32 - selection_adjustment) as usize,
6231 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6232 goal: SelectionGoal::None,
6233 ..selection
6234 });
6235
6236 selection_adjustment += old_length - text.len() as i32;
6237
6238 edits.push((start..end, text));
6239 }
6240
6241 self.transact(cx, |this, cx| {
6242 this.buffer.update(cx, |buffer, cx| {
6243 buffer.edit(edits, None, cx);
6244 });
6245
6246 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6247 s.select(new_selections);
6248 });
6249
6250 this.request_autoscroll(Autoscroll::fit(), cx);
6251 });
6252 }
6253
6254 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6255 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6256 let buffer = &display_map.buffer_snapshot;
6257 let selections = self.selections.all::<Point>(cx);
6258
6259 let mut edits = Vec::new();
6260 let mut selections_iter = selections.iter().peekable();
6261 while let Some(selection) = selections_iter.next() {
6262 let mut rows = selection.spanned_rows(false, &display_map);
6263 // duplicate line-wise
6264 if whole_lines || selection.start == selection.end {
6265 // Avoid duplicating the same lines twice.
6266 while let Some(next_selection) = selections_iter.peek() {
6267 let next_rows = next_selection.spanned_rows(false, &display_map);
6268 if next_rows.start < rows.end {
6269 rows.end = next_rows.end;
6270 selections_iter.next().unwrap();
6271 } else {
6272 break;
6273 }
6274 }
6275
6276 // Copy the text from the selected row region and splice it either at the start
6277 // or end of the region.
6278 let start = Point::new(rows.start.0, 0);
6279 let end = Point::new(
6280 rows.end.previous_row().0,
6281 buffer.line_len(rows.end.previous_row()),
6282 );
6283 let text = buffer
6284 .text_for_range(start..end)
6285 .chain(Some("\n"))
6286 .collect::<String>();
6287 let insert_location = if upwards {
6288 Point::new(rows.end.0, 0)
6289 } else {
6290 start
6291 };
6292 edits.push((insert_location..insert_location, text));
6293 } else {
6294 // duplicate character-wise
6295 let start = selection.start;
6296 let end = selection.end;
6297 let text = buffer.text_for_range(start..end).collect::<String>();
6298 edits.push((selection.end..selection.end, text));
6299 }
6300 }
6301
6302 self.transact(cx, |this, cx| {
6303 this.buffer.update(cx, |buffer, cx| {
6304 buffer.edit(edits, None, cx);
6305 });
6306
6307 this.request_autoscroll(Autoscroll::fit(), cx);
6308 });
6309 }
6310
6311 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6312 self.duplicate(true, true, cx);
6313 }
6314
6315 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6316 self.duplicate(false, true, cx);
6317 }
6318
6319 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6320 self.duplicate(false, false, cx);
6321 }
6322
6323 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6324 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6325 let buffer = self.buffer.read(cx).snapshot(cx);
6326
6327 let mut edits = Vec::new();
6328 let mut unfold_ranges = Vec::new();
6329 let mut refold_creases = Vec::new();
6330
6331 let selections = self.selections.all::<Point>(cx);
6332 let mut selections = selections.iter().peekable();
6333 let mut contiguous_row_selections = Vec::new();
6334 let mut new_selections = Vec::new();
6335
6336 while let Some(selection) = selections.next() {
6337 // Find all the selections that span a contiguous row range
6338 let (start_row, end_row) = consume_contiguous_rows(
6339 &mut contiguous_row_selections,
6340 selection,
6341 &display_map,
6342 &mut selections,
6343 );
6344
6345 // Move the text spanned by the row range to be before the line preceding the row range
6346 if start_row.0 > 0 {
6347 let range_to_move = Point::new(
6348 start_row.previous_row().0,
6349 buffer.line_len(start_row.previous_row()),
6350 )
6351 ..Point::new(
6352 end_row.previous_row().0,
6353 buffer.line_len(end_row.previous_row()),
6354 );
6355 let insertion_point = display_map
6356 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6357 .0;
6358
6359 // Don't move lines across excerpts
6360 if buffer
6361 .excerpt_boundaries_in_range((
6362 Bound::Excluded(insertion_point),
6363 Bound::Included(range_to_move.end),
6364 ))
6365 .next()
6366 .is_none()
6367 {
6368 let text = buffer
6369 .text_for_range(range_to_move.clone())
6370 .flat_map(|s| s.chars())
6371 .skip(1)
6372 .chain(['\n'])
6373 .collect::<String>();
6374
6375 edits.push((
6376 buffer.anchor_after(range_to_move.start)
6377 ..buffer.anchor_before(range_to_move.end),
6378 String::new(),
6379 ));
6380 let insertion_anchor = buffer.anchor_after(insertion_point);
6381 edits.push((insertion_anchor..insertion_anchor, text));
6382
6383 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6384
6385 // Move selections up
6386 new_selections.extend(contiguous_row_selections.drain(..).map(
6387 |mut selection| {
6388 selection.start.row -= row_delta;
6389 selection.end.row -= row_delta;
6390 selection
6391 },
6392 ));
6393
6394 // Move folds up
6395 unfold_ranges.push(range_to_move.clone());
6396 for fold in display_map.folds_in_range(
6397 buffer.anchor_before(range_to_move.start)
6398 ..buffer.anchor_after(range_to_move.end),
6399 ) {
6400 let mut start = fold.range.start.to_point(&buffer);
6401 let mut end = fold.range.end.to_point(&buffer);
6402 start.row -= row_delta;
6403 end.row -= row_delta;
6404 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6405 }
6406 }
6407 }
6408
6409 // If we didn't move line(s), preserve the existing selections
6410 new_selections.append(&mut contiguous_row_selections);
6411 }
6412
6413 self.transact(cx, |this, cx| {
6414 this.unfold_ranges(&unfold_ranges, true, true, cx);
6415 this.buffer.update(cx, |buffer, cx| {
6416 for (range, text) in edits {
6417 buffer.edit([(range, text)], None, cx);
6418 }
6419 });
6420 this.fold_creases(refold_creases, true, cx);
6421 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6422 s.select(new_selections);
6423 })
6424 });
6425 }
6426
6427 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6428 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6429 let buffer = self.buffer.read(cx).snapshot(cx);
6430
6431 let mut edits = Vec::new();
6432 let mut unfold_ranges = Vec::new();
6433 let mut refold_creases = Vec::new();
6434
6435 let selections = self.selections.all::<Point>(cx);
6436 let mut selections = selections.iter().peekable();
6437 let mut contiguous_row_selections = Vec::new();
6438 let mut new_selections = Vec::new();
6439
6440 while let Some(selection) = selections.next() {
6441 // Find all the selections that span a contiguous row range
6442 let (start_row, end_row) = consume_contiguous_rows(
6443 &mut contiguous_row_selections,
6444 selection,
6445 &display_map,
6446 &mut selections,
6447 );
6448
6449 // Move the text spanned by the row range to be after the last line of the row range
6450 if end_row.0 <= buffer.max_point().row {
6451 let range_to_move =
6452 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6453 let insertion_point = display_map
6454 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6455 .0;
6456
6457 // Don't move lines across excerpt boundaries
6458 if buffer
6459 .excerpt_boundaries_in_range((
6460 Bound::Excluded(range_to_move.start),
6461 Bound::Included(insertion_point),
6462 ))
6463 .next()
6464 .is_none()
6465 {
6466 let mut text = String::from("\n");
6467 text.extend(buffer.text_for_range(range_to_move.clone()));
6468 text.pop(); // Drop trailing newline
6469 edits.push((
6470 buffer.anchor_after(range_to_move.start)
6471 ..buffer.anchor_before(range_to_move.end),
6472 String::new(),
6473 ));
6474 let insertion_anchor = buffer.anchor_after(insertion_point);
6475 edits.push((insertion_anchor..insertion_anchor, text));
6476
6477 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6478
6479 // Move selections down
6480 new_selections.extend(contiguous_row_selections.drain(..).map(
6481 |mut selection| {
6482 selection.start.row += row_delta;
6483 selection.end.row += row_delta;
6484 selection
6485 },
6486 ));
6487
6488 // Move folds down
6489 unfold_ranges.push(range_to_move.clone());
6490 for fold in display_map.folds_in_range(
6491 buffer.anchor_before(range_to_move.start)
6492 ..buffer.anchor_after(range_to_move.end),
6493 ) {
6494 let mut start = fold.range.start.to_point(&buffer);
6495 let mut end = fold.range.end.to_point(&buffer);
6496 start.row += row_delta;
6497 end.row += row_delta;
6498 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6499 }
6500 }
6501 }
6502
6503 // If we didn't move line(s), preserve the existing selections
6504 new_selections.append(&mut contiguous_row_selections);
6505 }
6506
6507 self.transact(cx, |this, cx| {
6508 this.unfold_ranges(&unfold_ranges, true, true, cx);
6509 this.buffer.update(cx, |buffer, cx| {
6510 for (range, text) in edits {
6511 buffer.edit([(range, text)], None, cx);
6512 }
6513 });
6514 this.fold_creases(refold_creases, true, cx);
6515 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6516 });
6517 }
6518
6519 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6520 let text_layout_details = &self.text_layout_details(cx);
6521 self.transact(cx, |this, cx| {
6522 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6523 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6524 let line_mode = s.line_mode;
6525 s.move_with(|display_map, selection| {
6526 if !selection.is_empty() || line_mode {
6527 return;
6528 }
6529
6530 let mut head = selection.head();
6531 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6532 if head.column() == display_map.line_len(head.row()) {
6533 transpose_offset = display_map
6534 .buffer_snapshot
6535 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6536 }
6537
6538 if transpose_offset == 0 {
6539 return;
6540 }
6541
6542 *head.column_mut() += 1;
6543 head = display_map.clip_point(head, Bias::Right);
6544 let goal = SelectionGoal::HorizontalPosition(
6545 display_map
6546 .x_for_display_point(head, text_layout_details)
6547 .into(),
6548 );
6549 selection.collapse_to(head, goal);
6550
6551 let transpose_start = display_map
6552 .buffer_snapshot
6553 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6554 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6555 let transpose_end = display_map
6556 .buffer_snapshot
6557 .clip_offset(transpose_offset + 1, Bias::Right);
6558 if let Some(ch) =
6559 display_map.buffer_snapshot.chars_at(transpose_start).next()
6560 {
6561 edits.push((transpose_start..transpose_offset, String::new()));
6562 edits.push((transpose_end..transpose_end, ch.to_string()));
6563 }
6564 }
6565 });
6566 edits
6567 });
6568 this.buffer
6569 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6570 let selections = this.selections.all::<usize>(cx);
6571 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6572 s.select(selections);
6573 });
6574 });
6575 }
6576
6577 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6578 self.rewrap_impl(IsVimMode::No, cx)
6579 }
6580
6581 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6582 let buffer = self.buffer.read(cx).snapshot(cx);
6583 let selections = self.selections.all::<Point>(cx);
6584 let mut selections = selections.iter().peekable();
6585
6586 let mut edits = Vec::new();
6587 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6588
6589 while let Some(selection) = selections.next() {
6590 let mut start_row = selection.start.row;
6591 let mut end_row = selection.end.row;
6592
6593 // Skip selections that overlap with a range that has already been rewrapped.
6594 let selection_range = start_row..end_row;
6595 if rewrapped_row_ranges
6596 .iter()
6597 .any(|range| range.overlaps(&selection_range))
6598 {
6599 continue;
6600 }
6601
6602 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6603
6604 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6605 match language_scope.language_name().0.as_ref() {
6606 "Markdown" | "Plain Text" => {
6607 should_rewrap = true;
6608 }
6609 _ => {}
6610 }
6611 }
6612
6613 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6614
6615 // Since not all lines in the selection may be at the same indent
6616 // level, choose the indent size that is the most common between all
6617 // of the lines.
6618 //
6619 // If there is a tie, we use the deepest indent.
6620 let (indent_size, indent_end) = {
6621 let mut indent_size_occurrences = HashMap::default();
6622 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6623
6624 for row in start_row..=end_row {
6625 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6626 rows_by_indent_size.entry(indent).or_default().push(row);
6627 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6628 }
6629
6630 let indent_size = indent_size_occurrences
6631 .into_iter()
6632 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6633 .map(|(indent, _)| indent)
6634 .unwrap_or_default();
6635 let row = rows_by_indent_size[&indent_size][0];
6636 let indent_end = Point::new(row, indent_size.len);
6637
6638 (indent_size, indent_end)
6639 };
6640
6641 let mut line_prefix = indent_size.chars().collect::<String>();
6642
6643 if let Some(comment_prefix) =
6644 buffer
6645 .language_scope_at(selection.head())
6646 .and_then(|language| {
6647 language
6648 .line_comment_prefixes()
6649 .iter()
6650 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6651 .cloned()
6652 })
6653 {
6654 line_prefix.push_str(&comment_prefix);
6655 should_rewrap = true;
6656 }
6657
6658 if !should_rewrap {
6659 continue;
6660 }
6661
6662 if selection.is_empty() {
6663 'expand_upwards: while start_row > 0 {
6664 let prev_row = start_row - 1;
6665 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6666 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6667 {
6668 start_row = prev_row;
6669 } else {
6670 break 'expand_upwards;
6671 }
6672 }
6673
6674 'expand_downwards: while end_row < buffer.max_point().row {
6675 let next_row = end_row + 1;
6676 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6677 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6678 {
6679 end_row = next_row;
6680 } else {
6681 break 'expand_downwards;
6682 }
6683 }
6684 }
6685
6686 let start = Point::new(start_row, 0);
6687 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6688 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6689 let Some(lines_without_prefixes) = selection_text
6690 .lines()
6691 .map(|line| {
6692 line.strip_prefix(&line_prefix)
6693 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6694 .ok_or_else(|| {
6695 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6696 })
6697 })
6698 .collect::<Result<Vec<_>, _>>()
6699 .log_err()
6700 else {
6701 continue;
6702 };
6703
6704 let wrap_column = buffer
6705 .settings_at(Point::new(start_row, 0), cx)
6706 .preferred_line_length as usize;
6707 let wrapped_text = wrap_with_prefix(
6708 line_prefix,
6709 lines_without_prefixes.join(" "),
6710 wrap_column,
6711 tab_size,
6712 );
6713
6714 // TODO: should always use char-based diff while still supporting cursor behavior that
6715 // matches vim.
6716 let diff = match is_vim_mode {
6717 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6718 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6719 };
6720 let mut offset = start.to_offset(&buffer);
6721 let mut moved_since_edit = true;
6722
6723 for change in diff.iter_all_changes() {
6724 let value = change.value();
6725 match change.tag() {
6726 ChangeTag::Equal => {
6727 offset += value.len();
6728 moved_since_edit = true;
6729 }
6730 ChangeTag::Delete => {
6731 let start = buffer.anchor_after(offset);
6732 let end = buffer.anchor_before(offset + value.len());
6733
6734 if moved_since_edit {
6735 edits.push((start..end, String::new()));
6736 } else {
6737 edits.last_mut().unwrap().0.end = end;
6738 }
6739
6740 offset += value.len();
6741 moved_since_edit = false;
6742 }
6743 ChangeTag::Insert => {
6744 if moved_since_edit {
6745 let anchor = buffer.anchor_after(offset);
6746 edits.push((anchor..anchor, value.to_string()));
6747 } else {
6748 edits.last_mut().unwrap().1.push_str(value);
6749 }
6750
6751 moved_since_edit = false;
6752 }
6753 }
6754 }
6755
6756 rewrapped_row_ranges.push(start_row..=end_row);
6757 }
6758
6759 self.buffer
6760 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6761 }
6762
6763 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6764 let mut text = String::new();
6765 let buffer = self.buffer.read(cx).snapshot(cx);
6766 let mut selections = self.selections.all::<Point>(cx);
6767 let mut clipboard_selections = Vec::with_capacity(selections.len());
6768 {
6769 let max_point = buffer.max_point();
6770 let mut is_first = true;
6771 for selection in &mut selections {
6772 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6773 if is_entire_line {
6774 selection.start = Point::new(selection.start.row, 0);
6775 if !selection.is_empty() && selection.end.column == 0 {
6776 selection.end = cmp::min(max_point, selection.end);
6777 } else {
6778 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6779 }
6780 selection.goal = SelectionGoal::None;
6781 }
6782 if is_first {
6783 is_first = false;
6784 } else {
6785 text += "\n";
6786 }
6787 let mut len = 0;
6788 for chunk in buffer.text_for_range(selection.start..selection.end) {
6789 text.push_str(chunk);
6790 len += chunk.len();
6791 }
6792 clipboard_selections.push(ClipboardSelection {
6793 len,
6794 is_entire_line,
6795 first_line_indent: buffer
6796 .indent_size_for_line(MultiBufferRow(selection.start.row))
6797 .len,
6798 });
6799 }
6800 }
6801
6802 self.transact(cx, |this, cx| {
6803 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6804 s.select(selections);
6805 });
6806 this.insert("", cx);
6807 });
6808 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6809 }
6810
6811 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6812 let item = self.cut_common(cx);
6813 cx.write_to_clipboard(item);
6814 }
6815
6816 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6817 self.change_selections(None, cx, |s| {
6818 s.move_with(|snapshot, sel| {
6819 if sel.is_empty() {
6820 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6821 }
6822 });
6823 });
6824 let item = self.cut_common(cx);
6825 cx.set_global(KillRing(item))
6826 }
6827
6828 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6829 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6830 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6831 (kill_ring.text().to_string(), kill_ring.metadata_json())
6832 } else {
6833 return;
6834 }
6835 } else {
6836 return;
6837 };
6838 self.do_paste(&text, metadata, false, cx);
6839 }
6840
6841 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6842 let selections = self.selections.all::<Point>(cx);
6843 let buffer = self.buffer.read(cx).read(cx);
6844 let mut text = String::new();
6845
6846 let mut clipboard_selections = Vec::with_capacity(selections.len());
6847 {
6848 let max_point = buffer.max_point();
6849 let mut is_first = true;
6850 for selection in selections.iter() {
6851 let mut start = selection.start;
6852 let mut end = selection.end;
6853 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6854 if is_entire_line {
6855 start = Point::new(start.row, 0);
6856 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6857 }
6858 if is_first {
6859 is_first = false;
6860 } else {
6861 text += "\n";
6862 }
6863 let mut len = 0;
6864 for chunk in buffer.text_for_range(start..end) {
6865 text.push_str(chunk);
6866 len += chunk.len();
6867 }
6868 clipboard_selections.push(ClipboardSelection {
6869 len,
6870 is_entire_line,
6871 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6872 });
6873 }
6874 }
6875
6876 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6877 text,
6878 clipboard_selections,
6879 ));
6880 }
6881
6882 pub fn do_paste(
6883 &mut self,
6884 text: &String,
6885 clipboard_selections: Option<Vec<ClipboardSelection>>,
6886 handle_entire_lines: bool,
6887 cx: &mut ViewContext<Self>,
6888 ) {
6889 if self.read_only(cx) {
6890 return;
6891 }
6892
6893 let clipboard_text = Cow::Borrowed(text);
6894
6895 self.transact(cx, |this, cx| {
6896 if let Some(mut clipboard_selections) = clipboard_selections {
6897 let old_selections = this.selections.all::<usize>(cx);
6898 let all_selections_were_entire_line =
6899 clipboard_selections.iter().all(|s| s.is_entire_line);
6900 let first_selection_indent_column =
6901 clipboard_selections.first().map(|s| s.first_line_indent);
6902 if clipboard_selections.len() != old_selections.len() {
6903 clipboard_selections.drain(..);
6904 }
6905 let cursor_offset = this.selections.last::<usize>(cx).head();
6906 let mut auto_indent_on_paste = true;
6907
6908 this.buffer.update(cx, |buffer, cx| {
6909 let snapshot = buffer.read(cx);
6910 auto_indent_on_paste =
6911 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6912
6913 let mut start_offset = 0;
6914 let mut edits = Vec::new();
6915 let mut original_indent_columns = Vec::new();
6916 for (ix, selection) in old_selections.iter().enumerate() {
6917 let to_insert;
6918 let entire_line;
6919 let original_indent_column;
6920 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6921 let end_offset = start_offset + clipboard_selection.len;
6922 to_insert = &clipboard_text[start_offset..end_offset];
6923 entire_line = clipboard_selection.is_entire_line;
6924 start_offset = end_offset + 1;
6925 original_indent_column = Some(clipboard_selection.first_line_indent);
6926 } else {
6927 to_insert = clipboard_text.as_str();
6928 entire_line = all_selections_were_entire_line;
6929 original_indent_column = first_selection_indent_column
6930 }
6931
6932 // If the corresponding selection was empty when this slice of the
6933 // clipboard text was written, then the entire line containing the
6934 // selection was copied. If this selection is also currently empty,
6935 // then paste the line before the current line of the buffer.
6936 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6937 let column = selection.start.to_point(&snapshot).column as usize;
6938 let line_start = selection.start - column;
6939 line_start..line_start
6940 } else {
6941 selection.range()
6942 };
6943
6944 edits.push((range, to_insert));
6945 original_indent_columns.extend(original_indent_column);
6946 }
6947 drop(snapshot);
6948
6949 buffer.edit(
6950 edits,
6951 if auto_indent_on_paste {
6952 Some(AutoindentMode::Block {
6953 original_indent_columns,
6954 })
6955 } else {
6956 None
6957 },
6958 cx,
6959 );
6960 });
6961
6962 let selections = this.selections.all::<usize>(cx);
6963 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6964 } else {
6965 this.insert(&clipboard_text, cx);
6966 }
6967 });
6968 }
6969
6970 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6971 if let Some(item) = cx.read_from_clipboard() {
6972 let entries = item.entries();
6973
6974 match entries.first() {
6975 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6976 // of all the pasted entries.
6977 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6978 .do_paste(
6979 clipboard_string.text(),
6980 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6981 true,
6982 cx,
6983 ),
6984 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6985 }
6986 }
6987 }
6988
6989 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6990 if self.read_only(cx) {
6991 return;
6992 }
6993
6994 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6995 if let Some((selections, _)) =
6996 self.selection_history.transaction(transaction_id).cloned()
6997 {
6998 self.change_selections(None, cx, |s| {
6999 s.select_anchors(selections.to_vec());
7000 });
7001 }
7002 self.request_autoscroll(Autoscroll::fit(), cx);
7003 self.unmark_text(cx);
7004 self.refresh_inline_completion(true, false, cx);
7005 cx.emit(EditorEvent::Edited { transaction_id });
7006 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7007 }
7008 }
7009
7010 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7011 if self.read_only(cx) {
7012 return;
7013 }
7014
7015 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7016 if let Some((_, Some(selections))) =
7017 self.selection_history.transaction(transaction_id).cloned()
7018 {
7019 self.change_selections(None, cx, |s| {
7020 s.select_anchors(selections.to_vec());
7021 });
7022 }
7023 self.request_autoscroll(Autoscroll::fit(), cx);
7024 self.unmark_text(cx);
7025 self.refresh_inline_completion(true, false, cx);
7026 cx.emit(EditorEvent::Edited { transaction_id });
7027 }
7028 }
7029
7030 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7031 self.buffer
7032 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7033 }
7034
7035 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7036 self.buffer
7037 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7038 }
7039
7040 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7041 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7042 let line_mode = s.line_mode;
7043 s.move_with(|map, selection| {
7044 let cursor = if selection.is_empty() && !line_mode {
7045 movement::left(map, selection.start)
7046 } else {
7047 selection.start
7048 };
7049 selection.collapse_to(cursor, SelectionGoal::None);
7050 });
7051 })
7052 }
7053
7054 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7055 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7056 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7057 })
7058 }
7059
7060 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7061 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7062 let line_mode = s.line_mode;
7063 s.move_with(|map, selection| {
7064 let cursor = if selection.is_empty() && !line_mode {
7065 movement::right(map, selection.end)
7066 } else {
7067 selection.end
7068 };
7069 selection.collapse_to(cursor, SelectionGoal::None)
7070 });
7071 })
7072 }
7073
7074 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7075 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7076 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7077 })
7078 }
7079
7080 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7081 if self.take_rename(true, cx).is_some() {
7082 return;
7083 }
7084
7085 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7086 cx.propagate();
7087 return;
7088 }
7089
7090 let text_layout_details = &self.text_layout_details(cx);
7091 let selection_count = self.selections.count();
7092 let first_selection = self.selections.first_anchor();
7093
7094 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7095 let line_mode = s.line_mode;
7096 s.move_with(|map, selection| {
7097 if !selection.is_empty() && !line_mode {
7098 selection.goal = SelectionGoal::None;
7099 }
7100 let (cursor, goal) = movement::up(
7101 map,
7102 selection.start,
7103 selection.goal,
7104 false,
7105 text_layout_details,
7106 );
7107 selection.collapse_to(cursor, goal);
7108 });
7109 });
7110
7111 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7112 {
7113 cx.propagate();
7114 }
7115 }
7116
7117 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7118 if self.take_rename(true, cx).is_some() {
7119 return;
7120 }
7121
7122 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7123 cx.propagate();
7124 return;
7125 }
7126
7127 let text_layout_details = &self.text_layout_details(cx);
7128
7129 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7130 let line_mode = s.line_mode;
7131 s.move_with(|map, selection| {
7132 if !selection.is_empty() && !line_mode {
7133 selection.goal = SelectionGoal::None;
7134 }
7135 let (cursor, goal) = movement::up_by_rows(
7136 map,
7137 selection.start,
7138 action.lines,
7139 selection.goal,
7140 false,
7141 text_layout_details,
7142 );
7143 selection.collapse_to(cursor, goal);
7144 });
7145 })
7146 }
7147
7148 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7149 if self.take_rename(true, cx).is_some() {
7150 return;
7151 }
7152
7153 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7154 cx.propagate();
7155 return;
7156 }
7157
7158 let text_layout_details = &self.text_layout_details(cx);
7159
7160 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7161 let line_mode = s.line_mode;
7162 s.move_with(|map, selection| {
7163 if !selection.is_empty() && !line_mode {
7164 selection.goal = SelectionGoal::None;
7165 }
7166 let (cursor, goal) = movement::down_by_rows(
7167 map,
7168 selection.start,
7169 action.lines,
7170 selection.goal,
7171 false,
7172 text_layout_details,
7173 );
7174 selection.collapse_to(cursor, goal);
7175 });
7176 })
7177 }
7178
7179 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7180 let text_layout_details = &self.text_layout_details(cx);
7181 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7182 s.move_heads_with(|map, head, goal| {
7183 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7184 })
7185 })
7186 }
7187
7188 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7189 let text_layout_details = &self.text_layout_details(cx);
7190 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7191 s.move_heads_with(|map, head, goal| {
7192 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7193 })
7194 })
7195 }
7196
7197 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7198 let Some(row_count) = self.visible_row_count() else {
7199 return;
7200 };
7201
7202 let text_layout_details = &self.text_layout_details(cx);
7203
7204 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7205 s.move_heads_with(|map, head, goal| {
7206 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7207 })
7208 })
7209 }
7210
7211 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7212 if self.take_rename(true, cx).is_some() {
7213 return;
7214 }
7215
7216 if self
7217 .context_menu
7218 .borrow_mut()
7219 .as_mut()
7220 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7221 .unwrap_or(false)
7222 {
7223 return;
7224 }
7225
7226 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7227 cx.propagate();
7228 return;
7229 }
7230
7231 let Some(row_count) = self.visible_row_count() else {
7232 return;
7233 };
7234
7235 let autoscroll = if action.center_cursor {
7236 Autoscroll::center()
7237 } else {
7238 Autoscroll::fit()
7239 };
7240
7241 let text_layout_details = &self.text_layout_details(cx);
7242
7243 self.change_selections(Some(autoscroll), cx, |s| {
7244 let line_mode = s.line_mode;
7245 s.move_with(|map, selection| {
7246 if !selection.is_empty() && !line_mode {
7247 selection.goal = SelectionGoal::None;
7248 }
7249 let (cursor, goal) = movement::up_by_rows(
7250 map,
7251 selection.end,
7252 row_count,
7253 selection.goal,
7254 false,
7255 text_layout_details,
7256 );
7257 selection.collapse_to(cursor, goal);
7258 });
7259 });
7260 }
7261
7262 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7263 let text_layout_details = &self.text_layout_details(cx);
7264 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7265 s.move_heads_with(|map, head, goal| {
7266 movement::up(map, head, goal, false, text_layout_details)
7267 })
7268 })
7269 }
7270
7271 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7272 self.take_rename(true, cx);
7273
7274 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7275 cx.propagate();
7276 return;
7277 }
7278
7279 let text_layout_details = &self.text_layout_details(cx);
7280 let selection_count = self.selections.count();
7281 let first_selection = self.selections.first_anchor();
7282
7283 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7284 let line_mode = s.line_mode;
7285 s.move_with(|map, selection| {
7286 if !selection.is_empty() && !line_mode {
7287 selection.goal = SelectionGoal::None;
7288 }
7289 let (cursor, goal) = movement::down(
7290 map,
7291 selection.end,
7292 selection.goal,
7293 false,
7294 text_layout_details,
7295 );
7296 selection.collapse_to(cursor, goal);
7297 });
7298 });
7299
7300 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7301 {
7302 cx.propagate();
7303 }
7304 }
7305
7306 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7307 let Some(row_count) = self.visible_row_count() else {
7308 return;
7309 };
7310
7311 let text_layout_details = &self.text_layout_details(cx);
7312
7313 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7314 s.move_heads_with(|map, head, goal| {
7315 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7316 })
7317 })
7318 }
7319
7320 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7321 if self.take_rename(true, cx).is_some() {
7322 return;
7323 }
7324
7325 if self
7326 .context_menu
7327 .borrow_mut()
7328 .as_mut()
7329 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7330 .unwrap_or(false)
7331 {
7332 return;
7333 }
7334
7335 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7336 cx.propagate();
7337 return;
7338 }
7339
7340 let Some(row_count) = self.visible_row_count() else {
7341 return;
7342 };
7343
7344 let autoscroll = if action.center_cursor {
7345 Autoscroll::center()
7346 } else {
7347 Autoscroll::fit()
7348 };
7349
7350 let text_layout_details = &self.text_layout_details(cx);
7351 self.change_selections(Some(autoscroll), cx, |s| {
7352 let line_mode = s.line_mode;
7353 s.move_with(|map, selection| {
7354 if !selection.is_empty() && !line_mode {
7355 selection.goal = SelectionGoal::None;
7356 }
7357 let (cursor, goal) = movement::down_by_rows(
7358 map,
7359 selection.end,
7360 row_count,
7361 selection.goal,
7362 false,
7363 text_layout_details,
7364 );
7365 selection.collapse_to(cursor, goal);
7366 });
7367 });
7368 }
7369
7370 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7371 let text_layout_details = &self.text_layout_details(cx);
7372 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7373 s.move_heads_with(|map, head, goal| {
7374 movement::down(map, head, goal, false, text_layout_details)
7375 })
7376 });
7377 }
7378
7379 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7380 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7381 context_menu.select_first(self.completion_provider.as_deref(), cx);
7382 }
7383 }
7384
7385 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7386 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7387 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7388 }
7389 }
7390
7391 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7392 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7393 context_menu.select_next(self.completion_provider.as_deref(), cx);
7394 }
7395 }
7396
7397 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7398 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7399 context_menu.select_last(self.completion_provider.as_deref(), cx);
7400 }
7401 }
7402
7403 pub fn move_to_previous_word_start(
7404 &mut self,
7405 _: &MoveToPreviousWordStart,
7406 cx: &mut ViewContext<Self>,
7407 ) {
7408 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7409 s.move_cursors_with(|map, head, _| {
7410 (
7411 movement::previous_word_start(map, head),
7412 SelectionGoal::None,
7413 )
7414 });
7415 })
7416 }
7417
7418 pub fn move_to_previous_subword_start(
7419 &mut self,
7420 _: &MoveToPreviousSubwordStart,
7421 cx: &mut ViewContext<Self>,
7422 ) {
7423 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7424 s.move_cursors_with(|map, head, _| {
7425 (
7426 movement::previous_subword_start(map, head),
7427 SelectionGoal::None,
7428 )
7429 });
7430 })
7431 }
7432
7433 pub fn select_to_previous_word_start(
7434 &mut self,
7435 _: &SelectToPreviousWordStart,
7436 cx: &mut ViewContext<Self>,
7437 ) {
7438 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7439 s.move_heads_with(|map, head, _| {
7440 (
7441 movement::previous_word_start(map, head),
7442 SelectionGoal::None,
7443 )
7444 });
7445 })
7446 }
7447
7448 pub fn select_to_previous_subword_start(
7449 &mut self,
7450 _: &SelectToPreviousSubwordStart,
7451 cx: &mut ViewContext<Self>,
7452 ) {
7453 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7454 s.move_heads_with(|map, head, _| {
7455 (
7456 movement::previous_subword_start(map, head),
7457 SelectionGoal::None,
7458 )
7459 });
7460 })
7461 }
7462
7463 pub fn delete_to_previous_word_start(
7464 &mut self,
7465 action: &DeleteToPreviousWordStart,
7466 cx: &mut ViewContext<Self>,
7467 ) {
7468 self.transact(cx, |this, cx| {
7469 this.select_autoclose_pair(cx);
7470 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7471 let line_mode = s.line_mode;
7472 s.move_with(|map, selection| {
7473 if selection.is_empty() && !line_mode {
7474 let cursor = if action.ignore_newlines {
7475 movement::previous_word_start(map, selection.head())
7476 } else {
7477 movement::previous_word_start_or_newline(map, selection.head())
7478 };
7479 selection.set_head(cursor, SelectionGoal::None);
7480 }
7481 });
7482 });
7483 this.insert("", cx);
7484 });
7485 }
7486
7487 pub fn delete_to_previous_subword_start(
7488 &mut self,
7489 _: &DeleteToPreviousSubwordStart,
7490 cx: &mut ViewContext<Self>,
7491 ) {
7492 self.transact(cx, |this, cx| {
7493 this.select_autoclose_pair(cx);
7494 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7495 let line_mode = s.line_mode;
7496 s.move_with(|map, selection| {
7497 if selection.is_empty() && !line_mode {
7498 let cursor = movement::previous_subword_start(map, selection.head());
7499 selection.set_head(cursor, SelectionGoal::None);
7500 }
7501 });
7502 });
7503 this.insert("", cx);
7504 });
7505 }
7506
7507 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7508 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7509 s.move_cursors_with(|map, head, _| {
7510 (movement::next_word_end(map, head), SelectionGoal::None)
7511 });
7512 })
7513 }
7514
7515 pub fn move_to_next_subword_end(
7516 &mut self,
7517 _: &MoveToNextSubwordEnd,
7518 cx: &mut ViewContext<Self>,
7519 ) {
7520 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7521 s.move_cursors_with(|map, head, _| {
7522 (movement::next_subword_end(map, head), SelectionGoal::None)
7523 });
7524 })
7525 }
7526
7527 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7528 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7529 s.move_heads_with(|map, head, _| {
7530 (movement::next_word_end(map, head), SelectionGoal::None)
7531 });
7532 })
7533 }
7534
7535 pub fn select_to_next_subword_end(
7536 &mut self,
7537 _: &SelectToNextSubwordEnd,
7538 cx: &mut ViewContext<Self>,
7539 ) {
7540 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7541 s.move_heads_with(|map, head, _| {
7542 (movement::next_subword_end(map, head), SelectionGoal::None)
7543 });
7544 })
7545 }
7546
7547 pub fn delete_to_next_word_end(
7548 &mut self,
7549 action: &DeleteToNextWordEnd,
7550 cx: &mut ViewContext<Self>,
7551 ) {
7552 self.transact(cx, |this, cx| {
7553 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7554 let line_mode = s.line_mode;
7555 s.move_with(|map, selection| {
7556 if selection.is_empty() && !line_mode {
7557 let cursor = if action.ignore_newlines {
7558 movement::next_word_end(map, selection.head())
7559 } else {
7560 movement::next_word_end_or_newline(map, selection.head())
7561 };
7562 selection.set_head(cursor, SelectionGoal::None);
7563 }
7564 });
7565 });
7566 this.insert("", cx);
7567 });
7568 }
7569
7570 pub fn delete_to_next_subword_end(
7571 &mut self,
7572 _: &DeleteToNextSubwordEnd,
7573 cx: &mut ViewContext<Self>,
7574 ) {
7575 self.transact(cx, |this, cx| {
7576 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7577 s.move_with(|map, selection| {
7578 if selection.is_empty() {
7579 let cursor = movement::next_subword_end(map, selection.head());
7580 selection.set_head(cursor, SelectionGoal::None);
7581 }
7582 });
7583 });
7584 this.insert("", cx);
7585 });
7586 }
7587
7588 pub fn move_to_beginning_of_line(
7589 &mut self,
7590 action: &MoveToBeginningOfLine,
7591 cx: &mut ViewContext<Self>,
7592 ) {
7593 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7594 s.move_cursors_with(|map, head, _| {
7595 (
7596 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7597 SelectionGoal::None,
7598 )
7599 });
7600 })
7601 }
7602
7603 pub fn select_to_beginning_of_line(
7604 &mut self,
7605 action: &SelectToBeginningOfLine,
7606 cx: &mut ViewContext<Self>,
7607 ) {
7608 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7609 s.move_heads_with(|map, head, _| {
7610 (
7611 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7612 SelectionGoal::None,
7613 )
7614 });
7615 });
7616 }
7617
7618 pub fn delete_to_beginning_of_line(
7619 &mut self,
7620 _: &DeleteToBeginningOfLine,
7621 cx: &mut ViewContext<Self>,
7622 ) {
7623 self.transact(cx, |this, cx| {
7624 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7625 s.move_with(|_, selection| {
7626 selection.reversed = true;
7627 });
7628 });
7629
7630 this.select_to_beginning_of_line(
7631 &SelectToBeginningOfLine {
7632 stop_at_soft_wraps: false,
7633 },
7634 cx,
7635 );
7636 this.backspace(&Backspace, cx);
7637 });
7638 }
7639
7640 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7641 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7642 s.move_cursors_with(|map, head, _| {
7643 (
7644 movement::line_end(map, head, action.stop_at_soft_wraps),
7645 SelectionGoal::None,
7646 )
7647 });
7648 })
7649 }
7650
7651 pub fn select_to_end_of_line(
7652 &mut self,
7653 action: &SelectToEndOfLine,
7654 cx: &mut ViewContext<Self>,
7655 ) {
7656 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7657 s.move_heads_with(|map, head, _| {
7658 (
7659 movement::line_end(map, head, action.stop_at_soft_wraps),
7660 SelectionGoal::None,
7661 )
7662 });
7663 })
7664 }
7665
7666 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7667 self.transact(cx, |this, cx| {
7668 this.select_to_end_of_line(
7669 &SelectToEndOfLine {
7670 stop_at_soft_wraps: false,
7671 },
7672 cx,
7673 );
7674 this.delete(&Delete, cx);
7675 });
7676 }
7677
7678 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7679 self.transact(cx, |this, cx| {
7680 this.select_to_end_of_line(
7681 &SelectToEndOfLine {
7682 stop_at_soft_wraps: false,
7683 },
7684 cx,
7685 );
7686 this.cut(&Cut, cx);
7687 });
7688 }
7689
7690 pub fn move_to_start_of_paragraph(
7691 &mut self,
7692 _: &MoveToStartOfParagraph,
7693 cx: &mut ViewContext<Self>,
7694 ) {
7695 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7696 cx.propagate();
7697 return;
7698 }
7699
7700 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7701 s.move_with(|map, selection| {
7702 selection.collapse_to(
7703 movement::start_of_paragraph(map, selection.head(), 1),
7704 SelectionGoal::None,
7705 )
7706 });
7707 })
7708 }
7709
7710 pub fn move_to_end_of_paragraph(
7711 &mut self,
7712 _: &MoveToEndOfParagraph,
7713 cx: &mut ViewContext<Self>,
7714 ) {
7715 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7716 cx.propagate();
7717 return;
7718 }
7719
7720 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7721 s.move_with(|map, selection| {
7722 selection.collapse_to(
7723 movement::end_of_paragraph(map, selection.head(), 1),
7724 SelectionGoal::None,
7725 )
7726 });
7727 })
7728 }
7729
7730 pub fn select_to_start_of_paragraph(
7731 &mut self,
7732 _: &SelectToStartOfParagraph,
7733 cx: &mut ViewContext<Self>,
7734 ) {
7735 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7736 cx.propagate();
7737 return;
7738 }
7739
7740 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7741 s.move_heads_with(|map, head, _| {
7742 (
7743 movement::start_of_paragraph(map, head, 1),
7744 SelectionGoal::None,
7745 )
7746 });
7747 })
7748 }
7749
7750 pub fn select_to_end_of_paragraph(
7751 &mut self,
7752 _: &SelectToEndOfParagraph,
7753 cx: &mut ViewContext<Self>,
7754 ) {
7755 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7756 cx.propagate();
7757 return;
7758 }
7759
7760 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7761 s.move_heads_with(|map, head, _| {
7762 (
7763 movement::end_of_paragraph(map, head, 1),
7764 SelectionGoal::None,
7765 )
7766 });
7767 })
7768 }
7769
7770 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7771 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7772 cx.propagate();
7773 return;
7774 }
7775
7776 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7777 s.select_ranges(vec![0..0]);
7778 });
7779 }
7780
7781 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7782 let mut selection = self.selections.last::<Point>(cx);
7783 selection.set_head(Point::zero(), SelectionGoal::None);
7784
7785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7786 s.select(vec![selection]);
7787 });
7788 }
7789
7790 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7791 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7792 cx.propagate();
7793 return;
7794 }
7795
7796 let cursor = self.buffer.read(cx).read(cx).len();
7797 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7798 s.select_ranges(vec![cursor..cursor])
7799 });
7800 }
7801
7802 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7803 self.nav_history = nav_history;
7804 }
7805
7806 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7807 self.nav_history.as_ref()
7808 }
7809
7810 fn push_to_nav_history(
7811 &mut self,
7812 cursor_anchor: Anchor,
7813 new_position: Option<Point>,
7814 cx: &mut ViewContext<Self>,
7815 ) {
7816 if let Some(nav_history) = self.nav_history.as_mut() {
7817 let buffer = self.buffer.read(cx).read(cx);
7818 let cursor_position = cursor_anchor.to_point(&buffer);
7819 let scroll_state = self.scroll_manager.anchor();
7820 let scroll_top_row = scroll_state.top_row(&buffer);
7821 drop(buffer);
7822
7823 if let Some(new_position) = new_position {
7824 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7825 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7826 return;
7827 }
7828 }
7829
7830 nav_history.push(
7831 Some(NavigationData {
7832 cursor_anchor,
7833 cursor_position,
7834 scroll_anchor: scroll_state,
7835 scroll_top_row,
7836 }),
7837 cx,
7838 );
7839 }
7840 }
7841
7842 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7843 let buffer = self.buffer.read(cx).snapshot(cx);
7844 let mut selection = self.selections.first::<usize>(cx);
7845 selection.set_head(buffer.len(), SelectionGoal::None);
7846 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7847 s.select(vec![selection]);
7848 });
7849 }
7850
7851 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7852 let end = self.buffer.read(cx).read(cx).len();
7853 self.change_selections(None, cx, |s| {
7854 s.select_ranges(vec![0..end]);
7855 });
7856 }
7857
7858 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7859 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7860 let mut selections = self.selections.all::<Point>(cx);
7861 let max_point = display_map.buffer_snapshot.max_point();
7862 for selection in &mut selections {
7863 let rows = selection.spanned_rows(true, &display_map);
7864 selection.start = Point::new(rows.start.0, 0);
7865 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7866 selection.reversed = false;
7867 }
7868 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7869 s.select(selections);
7870 });
7871 }
7872
7873 pub fn split_selection_into_lines(
7874 &mut self,
7875 _: &SplitSelectionIntoLines,
7876 cx: &mut ViewContext<Self>,
7877 ) {
7878 let mut to_unfold = Vec::new();
7879 let mut new_selection_ranges = Vec::new();
7880 {
7881 let selections = self.selections.all::<Point>(cx);
7882 let buffer = self.buffer.read(cx).read(cx);
7883 for selection in selections {
7884 for row in selection.start.row..selection.end.row {
7885 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7886 new_selection_ranges.push(cursor..cursor);
7887 }
7888 new_selection_ranges.push(selection.end..selection.end);
7889 to_unfold.push(selection.start..selection.end);
7890 }
7891 }
7892 self.unfold_ranges(&to_unfold, true, true, cx);
7893 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7894 s.select_ranges(new_selection_ranges);
7895 });
7896 }
7897
7898 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7899 self.add_selection(true, cx);
7900 }
7901
7902 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7903 self.add_selection(false, cx);
7904 }
7905
7906 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7907 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7908 let mut selections = self.selections.all::<Point>(cx);
7909 let text_layout_details = self.text_layout_details(cx);
7910 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7911 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7912 let range = oldest_selection.display_range(&display_map).sorted();
7913
7914 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7915 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7916 let positions = start_x.min(end_x)..start_x.max(end_x);
7917
7918 selections.clear();
7919 let mut stack = Vec::new();
7920 for row in range.start.row().0..=range.end.row().0 {
7921 if let Some(selection) = self.selections.build_columnar_selection(
7922 &display_map,
7923 DisplayRow(row),
7924 &positions,
7925 oldest_selection.reversed,
7926 &text_layout_details,
7927 ) {
7928 stack.push(selection.id);
7929 selections.push(selection);
7930 }
7931 }
7932
7933 if above {
7934 stack.reverse();
7935 }
7936
7937 AddSelectionsState { above, stack }
7938 });
7939
7940 let last_added_selection = *state.stack.last().unwrap();
7941 let mut new_selections = Vec::new();
7942 if above == state.above {
7943 let end_row = if above {
7944 DisplayRow(0)
7945 } else {
7946 display_map.max_point().row()
7947 };
7948
7949 'outer: for selection in selections {
7950 if selection.id == last_added_selection {
7951 let range = selection.display_range(&display_map).sorted();
7952 debug_assert_eq!(range.start.row(), range.end.row());
7953 let mut row = range.start.row();
7954 let positions =
7955 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7956 px(start)..px(end)
7957 } else {
7958 let start_x =
7959 display_map.x_for_display_point(range.start, &text_layout_details);
7960 let end_x =
7961 display_map.x_for_display_point(range.end, &text_layout_details);
7962 start_x.min(end_x)..start_x.max(end_x)
7963 };
7964
7965 while row != end_row {
7966 if above {
7967 row.0 -= 1;
7968 } else {
7969 row.0 += 1;
7970 }
7971
7972 if let Some(new_selection) = self.selections.build_columnar_selection(
7973 &display_map,
7974 row,
7975 &positions,
7976 selection.reversed,
7977 &text_layout_details,
7978 ) {
7979 state.stack.push(new_selection.id);
7980 if above {
7981 new_selections.push(new_selection);
7982 new_selections.push(selection);
7983 } else {
7984 new_selections.push(selection);
7985 new_selections.push(new_selection);
7986 }
7987
7988 continue 'outer;
7989 }
7990 }
7991 }
7992
7993 new_selections.push(selection);
7994 }
7995 } else {
7996 new_selections = selections;
7997 new_selections.retain(|s| s.id != last_added_selection);
7998 state.stack.pop();
7999 }
8000
8001 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8002 s.select(new_selections);
8003 });
8004 if state.stack.len() > 1 {
8005 self.add_selections_state = Some(state);
8006 }
8007 }
8008
8009 pub fn select_next_match_internal(
8010 &mut self,
8011 display_map: &DisplaySnapshot,
8012 replace_newest: bool,
8013 autoscroll: Option<Autoscroll>,
8014 cx: &mut ViewContext<Self>,
8015 ) -> Result<()> {
8016 fn select_next_match_ranges(
8017 this: &mut Editor,
8018 range: Range<usize>,
8019 replace_newest: bool,
8020 auto_scroll: Option<Autoscroll>,
8021 cx: &mut ViewContext<Editor>,
8022 ) {
8023 this.unfold_ranges(&[range.clone()], false, true, cx);
8024 this.change_selections(auto_scroll, cx, |s| {
8025 if replace_newest {
8026 s.delete(s.newest_anchor().id);
8027 }
8028 s.insert_range(range.clone());
8029 });
8030 }
8031
8032 let buffer = &display_map.buffer_snapshot;
8033 let mut selections = self.selections.all::<usize>(cx);
8034 if let Some(mut select_next_state) = self.select_next_state.take() {
8035 let query = &select_next_state.query;
8036 if !select_next_state.done {
8037 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8038 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8039 let mut next_selected_range = None;
8040
8041 let bytes_after_last_selection =
8042 buffer.bytes_in_range(last_selection.end..buffer.len());
8043 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8044 let query_matches = query
8045 .stream_find_iter(bytes_after_last_selection)
8046 .map(|result| (last_selection.end, result))
8047 .chain(
8048 query
8049 .stream_find_iter(bytes_before_first_selection)
8050 .map(|result| (0, result)),
8051 );
8052
8053 for (start_offset, query_match) in query_matches {
8054 let query_match = query_match.unwrap(); // can only fail due to I/O
8055 let offset_range =
8056 start_offset + query_match.start()..start_offset + query_match.end();
8057 let display_range = offset_range.start.to_display_point(display_map)
8058 ..offset_range.end.to_display_point(display_map);
8059
8060 if !select_next_state.wordwise
8061 || (!movement::is_inside_word(display_map, display_range.start)
8062 && !movement::is_inside_word(display_map, display_range.end))
8063 {
8064 // TODO: This is n^2, because we might check all the selections
8065 if !selections
8066 .iter()
8067 .any(|selection| selection.range().overlaps(&offset_range))
8068 {
8069 next_selected_range = Some(offset_range);
8070 break;
8071 }
8072 }
8073 }
8074
8075 if let Some(next_selected_range) = next_selected_range {
8076 select_next_match_ranges(
8077 self,
8078 next_selected_range,
8079 replace_newest,
8080 autoscroll,
8081 cx,
8082 );
8083 } else {
8084 select_next_state.done = true;
8085 }
8086 }
8087
8088 self.select_next_state = Some(select_next_state);
8089 } else {
8090 let mut only_carets = true;
8091 let mut same_text_selected = true;
8092 let mut selected_text = None;
8093
8094 let mut selections_iter = selections.iter().peekable();
8095 while let Some(selection) = selections_iter.next() {
8096 if selection.start != selection.end {
8097 only_carets = false;
8098 }
8099
8100 if same_text_selected {
8101 if selected_text.is_none() {
8102 selected_text =
8103 Some(buffer.text_for_range(selection.range()).collect::<String>());
8104 }
8105
8106 if let Some(next_selection) = selections_iter.peek() {
8107 if next_selection.range().len() == selection.range().len() {
8108 let next_selected_text = buffer
8109 .text_for_range(next_selection.range())
8110 .collect::<String>();
8111 if Some(next_selected_text) != selected_text {
8112 same_text_selected = false;
8113 selected_text = None;
8114 }
8115 } else {
8116 same_text_selected = false;
8117 selected_text = None;
8118 }
8119 }
8120 }
8121 }
8122
8123 if only_carets {
8124 for selection in &mut selections {
8125 let word_range = movement::surrounding_word(
8126 display_map,
8127 selection.start.to_display_point(display_map),
8128 );
8129 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8130 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8131 selection.goal = SelectionGoal::None;
8132 selection.reversed = false;
8133 select_next_match_ranges(
8134 self,
8135 selection.start..selection.end,
8136 replace_newest,
8137 autoscroll,
8138 cx,
8139 );
8140 }
8141
8142 if selections.len() == 1 {
8143 let selection = selections
8144 .last()
8145 .expect("ensured that there's only one selection");
8146 let query = buffer
8147 .text_for_range(selection.start..selection.end)
8148 .collect::<String>();
8149 let is_empty = query.is_empty();
8150 let select_state = SelectNextState {
8151 query: AhoCorasick::new(&[query])?,
8152 wordwise: true,
8153 done: is_empty,
8154 };
8155 self.select_next_state = Some(select_state);
8156 } else {
8157 self.select_next_state = None;
8158 }
8159 } else if let Some(selected_text) = selected_text {
8160 self.select_next_state = Some(SelectNextState {
8161 query: AhoCorasick::new(&[selected_text])?,
8162 wordwise: false,
8163 done: false,
8164 });
8165 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8166 }
8167 }
8168 Ok(())
8169 }
8170
8171 pub fn select_all_matches(
8172 &mut self,
8173 _action: &SelectAllMatches,
8174 cx: &mut ViewContext<Self>,
8175 ) -> Result<()> {
8176 self.push_to_selection_history();
8177 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8178
8179 self.select_next_match_internal(&display_map, false, None, cx)?;
8180 let Some(select_next_state) = self.select_next_state.as_mut() else {
8181 return Ok(());
8182 };
8183 if select_next_state.done {
8184 return Ok(());
8185 }
8186
8187 let mut new_selections = self.selections.all::<usize>(cx);
8188
8189 let buffer = &display_map.buffer_snapshot;
8190 let query_matches = select_next_state
8191 .query
8192 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8193
8194 for query_match in query_matches {
8195 let query_match = query_match.unwrap(); // can only fail due to I/O
8196 let offset_range = query_match.start()..query_match.end();
8197 let display_range = offset_range.start.to_display_point(&display_map)
8198 ..offset_range.end.to_display_point(&display_map);
8199
8200 if !select_next_state.wordwise
8201 || (!movement::is_inside_word(&display_map, display_range.start)
8202 && !movement::is_inside_word(&display_map, display_range.end))
8203 {
8204 self.selections.change_with(cx, |selections| {
8205 new_selections.push(Selection {
8206 id: selections.new_selection_id(),
8207 start: offset_range.start,
8208 end: offset_range.end,
8209 reversed: false,
8210 goal: SelectionGoal::None,
8211 });
8212 });
8213 }
8214 }
8215
8216 new_selections.sort_by_key(|selection| selection.start);
8217 let mut ix = 0;
8218 while ix + 1 < new_selections.len() {
8219 let current_selection = &new_selections[ix];
8220 let next_selection = &new_selections[ix + 1];
8221 if current_selection.range().overlaps(&next_selection.range()) {
8222 if current_selection.id < next_selection.id {
8223 new_selections.remove(ix + 1);
8224 } else {
8225 new_selections.remove(ix);
8226 }
8227 } else {
8228 ix += 1;
8229 }
8230 }
8231
8232 select_next_state.done = true;
8233 self.unfold_ranges(
8234 &new_selections
8235 .iter()
8236 .map(|selection| selection.range())
8237 .collect::<Vec<_>>(),
8238 false,
8239 false,
8240 cx,
8241 );
8242 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8243 selections.select(new_selections)
8244 });
8245
8246 Ok(())
8247 }
8248
8249 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8250 self.push_to_selection_history();
8251 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8252 self.select_next_match_internal(
8253 &display_map,
8254 action.replace_newest,
8255 Some(Autoscroll::newest()),
8256 cx,
8257 )?;
8258 Ok(())
8259 }
8260
8261 pub fn select_previous(
8262 &mut self,
8263 action: &SelectPrevious,
8264 cx: &mut ViewContext<Self>,
8265 ) -> Result<()> {
8266 self.push_to_selection_history();
8267 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8268 let buffer = &display_map.buffer_snapshot;
8269 let mut selections = self.selections.all::<usize>(cx);
8270 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8271 let query = &select_prev_state.query;
8272 if !select_prev_state.done {
8273 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8274 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8275 let mut next_selected_range = None;
8276 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8277 let bytes_before_last_selection =
8278 buffer.reversed_bytes_in_range(0..last_selection.start);
8279 let bytes_after_first_selection =
8280 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8281 let query_matches = query
8282 .stream_find_iter(bytes_before_last_selection)
8283 .map(|result| (last_selection.start, result))
8284 .chain(
8285 query
8286 .stream_find_iter(bytes_after_first_selection)
8287 .map(|result| (buffer.len(), result)),
8288 );
8289 for (end_offset, query_match) in query_matches {
8290 let query_match = query_match.unwrap(); // can only fail due to I/O
8291 let offset_range =
8292 end_offset - query_match.end()..end_offset - query_match.start();
8293 let display_range = offset_range.start.to_display_point(&display_map)
8294 ..offset_range.end.to_display_point(&display_map);
8295
8296 if !select_prev_state.wordwise
8297 || (!movement::is_inside_word(&display_map, display_range.start)
8298 && !movement::is_inside_word(&display_map, display_range.end))
8299 {
8300 next_selected_range = Some(offset_range);
8301 break;
8302 }
8303 }
8304
8305 if let Some(next_selected_range) = next_selected_range {
8306 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8307 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8308 if action.replace_newest {
8309 s.delete(s.newest_anchor().id);
8310 }
8311 s.insert_range(next_selected_range);
8312 });
8313 } else {
8314 select_prev_state.done = true;
8315 }
8316 }
8317
8318 self.select_prev_state = Some(select_prev_state);
8319 } else {
8320 let mut only_carets = true;
8321 let mut same_text_selected = true;
8322 let mut selected_text = None;
8323
8324 let mut selections_iter = selections.iter().peekable();
8325 while let Some(selection) = selections_iter.next() {
8326 if selection.start != selection.end {
8327 only_carets = false;
8328 }
8329
8330 if same_text_selected {
8331 if selected_text.is_none() {
8332 selected_text =
8333 Some(buffer.text_for_range(selection.range()).collect::<String>());
8334 }
8335
8336 if let Some(next_selection) = selections_iter.peek() {
8337 if next_selection.range().len() == selection.range().len() {
8338 let next_selected_text = buffer
8339 .text_for_range(next_selection.range())
8340 .collect::<String>();
8341 if Some(next_selected_text) != selected_text {
8342 same_text_selected = false;
8343 selected_text = None;
8344 }
8345 } else {
8346 same_text_selected = false;
8347 selected_text = None;
8348 }
8349 }
8350 }
8351 }
8352
8353 if only_carets {
8354 for selection in &mut selections {
8355 let word_range = movement::surrounding_word(
8356 &display_map,
8357 selection.start.to_display_point(&display_map),
8358 );
8359 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8360 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8361 selection.goal = SelectionGoal::None;
8362 selection.reversed = false;
8363 }
8364 if selections.len() == 1 {
8365 let selection = selections
8366 .last()
8367 .expect("ensured that there's only one selection");
8368 let query = buffer
8369 .text_for_range(selection.start..selection.end)
8370 .collect::<String>();
8371 let is_empty = query.is_empty();
8372 let select_state = SelectNextState {
8373 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8374 wordwise: true,
8375 done: is_empty,
8376 };
8377 self.select_prev_state = Some(select_state);
8378 } else {
8379 self.select_prev_state = None;
8380 }
8381
8382 self.unfold_ranges(
8383 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8384 false,
8385 true,
8386 cx,
8387 );
8388 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8389 s.select(selections);
8390 });
8391 } else if let Some(selected_text) = selected_text {
8392 self.select_prev_state = Some(SelectNextState {
8393 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8394 wordwise: false,
8395 done: false,
8396 });
8397 self.select_previous(action, cx)?;
8398 }
8399 }
8400 Ok(())
8401 }
8402
8403 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8404 if self.read_only(cx) {
8405 return;
8406 }
8407 let text_layout_details = &self.text_layout_details(cx);
8408 self.transact(cx, |this, cx| {
8409 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8410 let mut edits = Vec::new();
8411 let mut selection_edit_ranges = Vec::new();
8412 let mut last_toggled_row = None;
8413 let snapshot = this.buffer.read(cx).read(cx);
8414 let empty_str: Arc<str> = Arc::default();
8415 let mut suffixes_inserted = Vec::new();
8416 let ignore_indent = action.ignore_indent;
8417
8418 fn comment_prefix_range(
8419 snapshot: &MultiBufferSnapshot,
8420 row: MultiBufferRow,
8421 comment_prefix: &str,
8422 comment_prefix_whitespace: &str,
8423 ignore_indent: bool,
8424 ) -> Range<Point> {
8425 let indent_size = if ignore_indent {
8426 0
8427 } else {
8428 snapshot.indent_size_for_line(row).len
8429 };
8430
8431 let start = Point::new(row.0, indent_size);
8432
8433 let mut line_bytes = snapshot
8434 .bytes_in_range(start..snapshot.max_point())
8435 .flatten()
8436 .copied();
8437
8438 // If this line currently begins with the line comment prefix, then record
8439 // the range containing the prefix.
8440 if line_bytes
8441 .by_ref()
8442 .take(comment_prefix.len())
8443 .eq(comment_prefix.bytes())
8444 {
8445 // Include any whitespace that matches the comment prefix.
8446 let matching_whitespace_len = line_bytes
8447 .zip(comment_prefix_whitespace.bytes())
8448 .take_while(|(a, b)| a == b)
8449 .count() as u32;
8450 let end = Point::new(
8451 start.row,
8452 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8453 );
8454 start..end
8455 } else {
8456 start..start
8457 }
8458 }
8459
8460 fn comment_suffix_range(
8461 snapshot: &MultiBufferSnapshot,
8462 row: MultiBufferRow,
8463 comment_suffix: &str,
8464 comment_suffix_has_leading_space: bool,
8465 ) -> Range<Point> {
8466 let end = Point::new(row.0, snapshot.line_len(row));
8467 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8468
8469 let mut line_end_bytes = snapshot
8470 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8471 .flatten()
8472 .copied();
8473
8474 let leading_space_len = if suffix_start_column > 0
8475 && line_end_bytes.next() == Some(b' ')
8476 && comment_suffix_has_leading_space
8477 {
8478 1
8479 } else {
8480 0
8481 };
8482
8483 // If this line currently begins with the line comment prefix, then record
8484 // the range containing the prefix.
8485 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8486 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8487 start..end
8488 } else {
8489 end..end
8490 }
8491 }
8492
8493 // TODO: Handle selections that cross excerpts
8494 for selection in &mut selections {
8495 let start_column = snapshot
8496 .indent_size_for_line(MultiBufferRow(selection.start.row))
8497 .len;
8498 let language = if let Some(language) =
8499 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8500 {
8501 language
8502 } else {
8503 continue;
8504 };
8505
8506 selection_edit_ranges.clear();
8507
8508 // If multiple selections contain a given row, avoid processing that
8509 // row more than once.
8510 let mut start_row = MultiBufferRow(selection.start.row);
8511 if last_toggled_row == Some(start_row) {
8512 start_row = start_row.next_row();
8513 }
8514 let end_row =
8515 if selection.end.row > selection.start.row && selection.end.column == 0 {
8516 MultiBufferRow(selection.end.row - 1)
8517 } else {
8518 MultiBufferRow(selection.end.row)
8519 };
8520 last_toggled_row = Some(end_row);
8521
8522 if start_row > end_row {
8523 continue;
8524 }
8525
8526 // If the language has line comments, toggle those.
8527 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8528
8529 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8530 if ignore_indent {
8531 full_comment_prefixes = full_comment_prefixes
8532 .into_iter()
8533 .map(|s| Arc::from(s.trim_end()))
8534 .collect();
8535 }
8536
8537 if !full_comment_prefixes.is_empty() {
8538 let first_prefix = full_comment_prefixes
8539 .first()
8540 .expect("prefixes is non-empty");
8541 let prefix_trimmed_lengths = full_comment_prefixes
8542 .iter()
8543 .map(|p| p.trim_end_matches(' ').len())
8544 .collect::<SmallVec<[usize; 4]>>();
8545
8546 let mut all_selection_lines_are_comments = true;
8547
8548 for row in start_row.0..=end_row.0 {
8549 let row = MultiBufferRow(row);
8550 if start_row < end_row && snapshot.is_line_blank(row) {
8551 continue;
8552 }
8553
8554 let prefix_range = full_comment_prefixes
8555 .iter()
8556 .zip(prefix_trimmed_lengths.iter().copied())
8557 .map(|(prefix, trimmed_prefix_len)| {
8558 comment_prefix_range(
8559 snapshot.deref(),
8560 row,
8561 &prefix[..trimmed_prefix_len],
8562 &prefix[trimmed_prefix_len..],
8563 ignore_indent,
8564 )
8565 })
8566 .max_by_key(|range| range.end.column - range.start.column)
8567 .expect("prefixes is non-empty");
8568
8569 if prefix_range.is_empty() {
8570 all_selection_lines_are_comments = false;
8571 }
8572
8573 selection_edit_ranges.push(prefix_range);
8574 }
8575
8576 if all_selection_lines_are_comments {
8577 edits.extend(
8578 selection_edit_ranges
8579 .iter()
8580 .cloned()
8581 .map(|range| (range, empty_str.clone())),
8582 );
8583 } else {
8584 let min_column = selection_edit_ranges
8585 .iter()
8586 .map(|range| range.start.column)
8587 .min()
8588 .unwrap_or(0);
8589 edits.extend(selection_edit_ranges.iter().map(|range| {
8590 let position = Point::new(range.start.row, min_column);
8591 (position..position, first_prefix.clone())
8592 }));
8593 }
8594 } else if let Some((full_comment_prefix, comment_suffix)) =
8595 language.block_comment_delimiters()
8596 {
8597 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8598 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8599 let prefix_range = comment_prefix_range(
8600 snapshot.deref(),
8601 start_row,
8602 comment_prefix,
8603 comment_prefix_whitespace,
8604 ignore_indent,
8605 );
8606 let suffix_range = comment_suffix_range(
8607 snapshot.deref(),
8608 end_row,
8609 comment_suffix.trim_start_matches(' '),
8610 comment_suffix.starts_with(' '),
8611 );
8612
8613 if prefix_range.is_empty() || suffix_range.is_empty() {
8614 edits.push((
8615 prefix_range.start..prefix_range.start,
8616 full_comment_prefix.clone(),
8617 ));
8618 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8619 suffixes_inserted.push((end_row, comment_suffix.len()));
8620 } else {
8621 edits.push((prefix_range, empty_str.clone()));
8622 edits.push((suffix_range, empty_str.clone()));
8623 }
8624 } else {
8625 continue;
8626 }
8627 }
8628
8629 drop(snapshot);
8630 this.buffer.update(cx, |buffer, cx| {
8631 buffer.edit(edits, None, cx);
8632 });
8633
8634 // Adjust selections so that they end before any comment suffixes that
8635 // were inserted.
8636 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8637 let mut selections = this.selections.all::<Point>(cx);
8638 let snapshot = this.buffer.read(cx).read(cx);
8639 for selection in &mut selections {
8640 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8641 match row.cmp(&MultiBufferRow(selection.end.row)) {
8642 Ordering::Less => {
8643 suffixes_inserted.next();
8644 continue;
8645 }
8646 Ordering::Greater => break,
8647 Ordering::Equal => {
8648 if selection.end.column == snapshot.line_len(row) {
8649 if selection.is_empty() {
8650 selection.start.column -= suffix_len as u32;
8651 }
8652 selection.end.column -= suffix_len as u32;
8653 }
8654 break;
8655 }
8656 }
8657 }
8658 }
8659
8660 drop(snapshot);
8661 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8662
8663 let selections = this.selections.all::<Point>(cx);
8664 let selections_on_single_row = selections.windows(2).all(|selections| {
8665 selections[0].start.row == selections[1].start.row
8666 && selections[0].end.row == selections[1].end.row
8667 && selections[0].start.row == selections[0].end.row
8668 });
8669 let selections_selecting = selections
8670 .iter()
8671 .any(|selection| selection.start != selection.end);
8672 let advance_downwards = action.advance_downwards
8673 && selections_on_single_row
8674 && !selections_selecting
8675 && !matches!(this.mode, EditorMode::SingleLine { .. });
8676
8677 if advance_downwards {
8678 let snapshot = this.buffer.read(cx).snapshot(cx);
8679
8680 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8681 s.move_cursors_with(|display_snapshot, display_point, _| {
8682 let mut point = display_point.to_point(display_snapshot);
8683 point.row += 1;
8684 point = snapshot.clip_point(point, Bias::Left);
8685 let display_point = point.to_display_point(display_snapshot);
8686 let goal = SelectionGoal::HorizontalPosition(
8687 display_snapshot
8688 .x_for_display_point(display_point, text_layout_details)
8689 .into(),
8690 );
8691 (display_point, goal)
8692 })
8693 });
8694 }
8695 });
8696 }
8697
8698 pub fn select_enclosing_symbol(
8699 &mut self,
8700 _: &SelectEnclosingSymbol,
8701 cx: &mut ViewContext<Self>,
8702 ) {
8703 let buffer = self.buffer.read(cx).snapshot(cx);
8704 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8705
8706 fn update_selection(
8707 selection: &Selection<usize>,
8708 buffer_snap: &MultiBufferSnapshot,
8709 ) -> Option<Selection<usize>> {
8710 let cursor = selection.head();
8711 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8712 for symbol in symbols.iter().rev() {
8713 let start = symbol.range.start.to_offset(buffer_snap);
8714 let end = symbol.range.end.to_offset(buffer_snap);
8715 let new_range = start..end;
8716 if start < selection.start || end > selection.end {
8717 return Some(Selection {
8718 id: selection.id,
8719 start: new_range.start,
8720 end: new_range.end,
8721 goal: SelectionGoal::None,
8722 reversed: selection.reversed,
8723 });
8724 }
8725 }
8726 None
8727 }
8728
8729 let mut selected_larger_symbol = false;
8730 let new_selections = old_selections
8731 .iter()
8732 .map(|selection| match update_selection(selection, &buffer) {
8733 Some(new_selection) => {
8734 if new_selection.range() != selection.range() {
8735 selected_larger_symbol = true;
8736 }
8737 new_selection
8738 }
8739 None => selection.clone(),
8740 })
8741 .collect::<Vec<_>>();
8742
8743 if selected_larger_symbol {
8744 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8745 s.select(new_selections);
8746 });
8747 }
8748 }
8749
8750 pub fn select_larger_syntax_node(
8751 &mut self,
8752 _: &SelectLargerSyntaxNode,
8753 cx: &mut ViewContext<Self>,
8754 ) {
8755 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8756 let buffer = self.buffer.read(cx).snapshot(cx);
8757 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8758
8759 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8760 let mut selected_larger_node = false;
8761 let new_selections = old_selections
8762 .iter()
8763 .map(|selection| {
8764 let old_range = selection.start..selection.end;
8765 let mut new_range = old_range.clone();
8766 while let Some(containing_range) =
8767 buffer.range_for_syntax_ancestor(new_range.clone())
8768 {
8769 new_range = containing_range;
8770 if !display_map.intersects_fold(new_range.start)
8771 && !display_map.intersects_fold(new_range.end)
8772 {
8773 break;
8774 }
8775 }
8776
8777 selected_larger_node |= new_range != old_range;
8778 Selection {
8779 id: selection.id,
8780 start: new_range.start,
8781 end: new_range.end,
8782 goal: SelectionGoal::None,
8783 reversed: selection.reversed,
8784 }
8785 })
8786 .collect::<Vec<_>>();
8787
8788 if selected_larger_node {
8789 stack.push(old_selections);
8790 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8791 s.select(new_selections);
8792 });
8793 }
8794 self.select_larger_syntax_node_stack = stack;
8795 }
8796
8797 pub fn select_smaller_syntax_node(
8798 &mut self,
8799 _: &SelectSmallerSyntaxNode,
8800 cx: &mut ViewContext<Self>,
8801 ) {
8802 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8803 if let Some(selections) = stack.pop() {
8804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8805 s.select(selections.to_vec());
8806 });
8807 }
8808 self.select_larger_syntax_node_stack = stack;
8809 }
8810
8811 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8812 if !EditorSettings::get_global(cx).gutter.runnables {
8813 self.clear_tasks();
8814 return Task::ready(());
8815 }
8816 let project = self.project.as_ref().map(Model::downgrade);
8817 cx.spawn(|this, mut cx| async move {
8818 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8819 let Some(project) = project.and_then(|p| p.upgrade()) else {
8820 return;
8821 };
8822 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8823 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8824 }) else {
8825 return;
8826 };
8827
8828 let hide_runnables = project
8829 .update(&mut cx, |project, cx| {
8830 // Do not display any test indicators in non-dev server remote projects.
8831 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8832 })
8833 .unwrap_or(true);
8834 if hide_runnables {
8835 return;
8836 }
8837 let new_rows =
8838 cx.background_executor()
8839 .spawn({
8840 let snapshot = display_snapshot.clone();
8841 async move {
8842 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8843 }
8844 })
8845 .await;
8846 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8847
8848 this.update(&mut cx, |this, _| {
8849 this.clear_tasks();
8850 for (key, value) in rows {
8851 this.insert_tasks(key, value);
8852 }
8853 })
8854 .ok();
8855 })
8856 }
8857 fn fetch_runnable_ranges(
8858 snapshot: &DisplaySnapshot,
8859 range: Range<Anchor>,
8860 ) -> Vec<language::RunnableRange> {
8861 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8862 }
8863
8864 fn runnable_rows(
8865 project: Model<Project>,
8866 snapshot: DisplaySnapshot,
8867 runnable_ranges: Vec<RunnableRange>,
8868 mut cx: AsyncWindowContext,
8869 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8870 runnable_ranges
8871 .into_iter()
8872 .filter_map(|mut runnable| {
8873 let tasks = cx
8874 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8875 .ok()?;
8876 if tasks.is_empty() {
8877 return None;
8878 }
8879
8880 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8881
8882 let row = snapshot
8883 .buffer_snapshot
8884 .buffer_line_for_row(MultiBufferRow(point.row))?
8885 .1
8886 .start
8887 .row;
8888
8889 let context_range =
8890 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8891 Some((
8892 (runnable.buffer_id, row),
8893 RunnableTasks {
8894 templates: tasks,
8895 offset: MultiBufferOffset(runnable.run_range.start),
8896 context_range,
8897 column: point.column,
8898 extra_variables: runnable.extra_captures,
8899 },
8900 ))
8901 })
8902 .collect()
8903 }
8904
8905 fn templates_with_tags(
8906 project: &Model<Project>,
8907 runnable: &mut Runnable,
8908 cx: &WindowContext<'_>,
8909 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8910 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8911 let (worktree_id, file) = project
8912 .buffer_for_id(runnable.buffer, cx)
8913 .and_then(|buffer| buffer.read(cx).file())
8914 .map(|file| (file.worktree_id(cx), file.clone()))
8915 .unzip();
8916
8917 (
8918 project.task_store().read(cx).task_inventory().cloned(),
8919 worktree_id,
8920 file,
8921 )
8922 });
8923
8924 let tags = mem::take(&mut runnable.tags);
8925 let mut tags: Vec<_> = tags
8926 .into_iter()
8927 .flat_map(|tag| {
8928 let tag = tag.0.clone();
8929 inventory
8930 .as_ref()
8931 .into_iter()
8932 .flat_map(|inventory| {
8933 inventory.read(cx).list_tasks(
8934 file.clone(),
8935 Some(runnable.language.clone()),
8936 worktree_id,
8937 cx,
8938 )
8939 })
8940 .filter(move |(_, template)| {
8941 template.tags.iter().any(|source_tag| source_tag == &tag)
8942 })
8943 })
8944 .sorted_by_key(|(kind, _)| kind.to_owned())
8945 .collect();
8946 if let Some((leading_tag_source, _)) = tags.first() {
8947 // Strongest source wins; if we have worktree tag binding, prefer that to
8948 // global and language bindings;
8949 // if we have a global binding, prefer that to language binding.
8950 let first_mismatch = tags
8951 .iter()
8952 .position(|(tag_source, _)| tag_source != leading_tag_source);
8953 if let Some(index) = first_mismatch {
8954 tags.truncate(index);
8955 }
8956 }
8957
8958 tags
8959 }
8960
8961 pub fn move_to_enclosing_bracket(
8962 &mut self,
8963 _: &MoveToEnclosingBracket,
8964 cx: &mut ViewContext<Self>,
8965 ) {
8966 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8967 s.move_offsets_with(|snapshot, selection| {
8968 let Some(enclosing_bracket_ranges) =
8969 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8970 else {
8971 return;
8972 };
8973
8974 let mut best_length = usize::MAX;
8975 let mut best_inside = false;
8976 let mut best_in_bracket_range = false;
8977 let mut best_destination = None;
8978 for (open, close) in enclosing_bracket_ranges {
8979 let close = close.to_inclusive();
8980 let length = close.end() - open.start;
8981 let inside = selection.start >= open.end && selection.end <= *close.start();
8982 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8983 || close.contains(&selection.head());
8984
8985 // If best is next to a bracket and current isn't, skip
8986 if !in_bracket_range && best_in_bracket_range {
8987 continue;
8988 }
8989
8990 // Prefer smaller lengths unless best is inside and current isn't
8991 if length > best_length && (best_inside || !inside) {
8992 continue;
8993 }
8994
8995 best_length = length;
8996 best_inside = inside;
8997 best_in_bracket_range = in_bracket_range;
8998 best_destination = Some(
8999 if close.contains(&selection.start) && close.contains(&selection.end) {
9000 if inside {
9001 open.end
9002 } else {
9003 open.start
9004 }
9005 } else if inside {
9006 *close.start()
9007 } else {
9008 *close.end()
9009 },
9010 );
9011 }
9012
9013 if let Some(destination) = best_destination {
9014 selection.collapse_to(destination, SelectionGoal::None);
9015 }
9016 })
9017 });
9018 }
9019
9020 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9021 self.end_selection(cx);
9022 self.selection_history.mode = SelectionHistoryMode::Undoing;
9023 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9024 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9025 self.select_next_state = entry.select_next_state;
9026 self.select_prev_state = entry.select_prev_state;
9027 self.add_selections_state = entry.add_selections_state;
9028 self.request_autoscroll(Autoscroll::newest(), cx);
9029 }
9030 self.selection_history.mode = SelectionHistoryMode::Normal;
9031 }
9032
9033 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9034 self.end_selection(cx);
9035 self.selection_history.mode = SelectionHistoryMode::Redoing;
9036 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9037 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9038 self.select_next_state = entry.select_next_state;
9039 self.select_prev_state = entry.select_prev_state;
9040 self.add_selections_state = entry.add_selections_state;
9041 self.request_autoscroll(Autoscroll::newest(), cx);
9042 }
9043 self.selection_history.mode = SelectionHistoryMode::Normal;
9044 }
9045
9046 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9047 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9048 }
9049
9050 pub fn expand_excerpts_down(
9051 &mut self,
9052 action: &ExpandExcerptsDown,
9053 cx: &mut ViewContext<Self>,
9054 ) {
9055 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9056 }
9057
9058 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9059 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9060 }
9061
9062 pub fn expand_excerpts_for_direction(
9063 &mut self,
9064 lines: u32,
9065 direction: ExpandExcerptDirection,
9066 cx: &mut ViewContext<Self>,
9067 ) {
9068 let selections = self.selections.disjoint_anchors();
9069
9070 let lines = if lines == 0 {
9071 EditorSettings::get_global(cx).expand_excerpt_lines
9072 } else {
9073 lines
9074 };
9075
9076 self.buffer.update(cx, |buffer, cx| {
9077 buffer.expand_excerpts(
9078 selections
9079 .iter()
9080 .map(|selection| selection.head().excerpt_id)
9081 .dedup(),
9082 lines,
9083 direction,
9084 cx,
9085 )
9086 })
9087 }
9088
9089 pub fn expand_excerpt(
9090 &mut self,
9091 excerpt: ExcerptId,
9092 direction: ExpandExcerptDirection,
9093 cx: &mut ViewContext<Self>,
9094 ) {
9095 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9096 self.buffer.update(cx, |buffer, cx| {
9097 buffer.expand_excerpts([excerpt], lines, direction, cx)
9098 })
9099 }
9100
9101 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9102 self.go_to_diagnostic_impl(Direction::Next, cx)
9103 }
9104
9105 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9106 self.go_to_diagnostic_impl(Direction::Prev, cx)
9107 }
9108
9109 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9110 let buffer = self.buffer.read(cx).snapshot(cx);
9111 let selection = self.selections.newest::<usize>(cx);
9112
9113 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9114 if direction == Direction::Next {
9115 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9116 let (group_id, jump_to) = popover.activation_info();
9117 if self.activate_diagnostics(group_id, cx) {
9118 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9119 let mut new_selection = s.newest_anchor().clone();
9120 new_selection.collapse_to(jump_to, SelectionGoal::None);
9121 s.select_anchors(vec![new_selection.clone()]);
9122 });
9123 }
9124 return;
9125 }
9126 }
9127
9128 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9129 active_diagnostics
9130 .primary_range
9131 .to_offset(&buffer)
9132 .to_inclusive()
9133 });
9134 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9135 if active_primary_range.contains(&selection.head()) {
9136 *active_primary_range.start()
9137 } else {
9138 selection.head()
9139 }
9140 } else {
9141 selection.head()
9142 };
9143 let snapshot = self.snapshot(cx);
9144 loop {
9145 let diagnostics = if direction == Direction::Prev {
9146 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9147 } else {
9148 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9149 }
9150 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9151 let group = diagnostics
9152 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9153 // be sorted in a stable way
9154 // skip until we are at current active diagnostic, if it exists
9155 .skip_while(|entry| {
9156 (match direction {
9157 Direction::Prev => entry.range.start >= search_start,
9158 Direction::Next => entry.range.start <= search_start,
9159 }) && self
9160 .active_diagnostics
9161 .as_ref()
9162 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9163 })
9164 .find_map(|entry| {
9165 if entry.diagnostic.is_primary
9166 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9167 && !entry.range.is_empty()
9168 // if we match with the active diagnostic, skip it
9169 && Some(entry.diagnostic.group_id)
9170 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9171 {
9172 Some((entry.range, entry.diagnostic.group_id))
9173 } else {
9174 None
9175 }
9176 });
9177
9178 if let Some((primary_range, group_id)) = group {
9179 if self.activate_diagnostics(group_id, cx) {
9180 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9181 s.select(vec![Selection {
9182 id: selection.id,
9183 start: primary_range.start,
9184 end: primary_range.start,
9185 reversed: false,
9186 goal: SelectionGoal::None,
9187 }]);
9188 });
9189 }
9190 break;
9191 } else {
9192 // Cycle around to the start of the buffer, potentially moving back to the start of
9193 // the currently active diagnostic.
9194 active_primary_range.take();
9195 if direction == Direction::Prev {
9196 if search_start == buffer.len() {
9197 break;
9198 } else {
9199 search_start = buffer.len();
9200 }
9201 } else if search_start == 0 {
9202 break;
9203 } else {
9204 search_start = 0;
9205 }
9206 }
9207 }
9208 }
9209
9210 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9211 let snapshot = self.snapshot(cx);
9212 let selection = self.selections.newest::<Point>(cx);
9213 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9214 }
9215
9216 fn go_to_hunk_after_position(
9217 &mut self,
9218 snapshot: &EditorSnapshot,
9219 position: Point,
9220 cx: &mut ViewContext<'_, Editor>,
9221 ) -> Option<MultiBufferDiffHunk> {
9222 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9223 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9224 snapshot,
9225 position,
9226 ix > 0,
9227 snapshot.diff_map.diff_hunks_in_range(
9228 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9229 &snapshot.buffer_snapshot,
9230 ),
9231 cx,
9232 ) {
9233 return Some(hunk);
9234 }
9235 }
9236 None
9237 }
9238
9239 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9240 let snapshot = self.snapshot(cx);
9241 let selection = self.selections.newest::<Point>(cx);
9242 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9243 }
9244
9245 fn go_to_hunk_before_position(
9246 &mut self,
9247 snapshot: &EditorSnapshot,
9248 position: Point,
9249 cx: &mut ViewContext<'_, Editor>,
9250 ) -> Option<MultiBufferDiffHunk> {
9251 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9252 .into_iter()
9253 .enumerate()
9254 {
9255 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9256 snapshot,
9257 position,
9258 ix > 0,
9259 snapshot
9260 .diff_map
9261 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9262 cx,
9263 ) {
9264 return Some(hunk);
9265 }
9266 }
9267 None
9268 }
9269
9270 fn go_to_next_hunk_in_direction(
9271 &mut self,
9272 snapshot: &DisplaySnapshot,
9273 initial_point: Point,
9274 is_wrapped: bool,
9275 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9276 cx: &mut ViewContext<Editor>,
9277 ) -> Option<MultiBufferDiffHunk> {
9278 let display_point = initial_point.to_display_point(snapshot);
9279 let mut hunks = hunks
9280 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9281 .filter(|(display_hunk, _)| {
9282 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9283 })
9284 .dedup();
9285
9286 if let Some((display_hunk, hunk)) = hunks.next() {
9287 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9288 let row = display_hunk.start_display_row();
9289 let point = DisplayPoint::new(row, 0);
9290 s.select_display_ranges([point..point]);
9291 });
9292
9293 Some(hunk)
9294 } else {
9295 None
9296 }
9297 }
9298
9299 pub fn go_to_definition(
9300 &mut self,
9301 _: &GoToDefinition,
9302 cx: &mut ViewContext<Self>,
9303 ) -> Task<Result<Navigated>> {
9304 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9305 cx.spawn(|editor, mut cx| async move {
9306 if definition.await? == Navigated::Yes {
9307 return Ok(Navigated::Yes);
9308 }
9309 match editor.update(&mut cx, |editor, cx| {
9310 editor.find_all_references(&FindAllReferences, cx)
9311 })? {
9312 Some(references) => references.await,
9313 None => Ok(Navigated::No),
9314 }
9315 })
9316 }
9317
9318 pub fn go_to_declaration(
9319 &mut self,
9320 _: &GoToDeclaration,
9321 cx: &mut ViewContext<Self>,
9322 ) -> Task<Result<Navigated>> {
9323 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9324 }
9325
9326 pub fn go_to_declaration_split(
9327 &mut self,
9328 _: &GoToDeclaration,
9329 cx: &mut ViewContext<Self>,
9330 ) -> Task<Result<Navigated>> {
9331 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9332 }
9333
9334 pub fn go_to_implementation(
9335 &mut self,
9336 _: &GoToImplementation,
9337 cx: &mut ViewContext<Self>,
9338 ) -> Task<Result<Navigated>> {
9339 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9340 }
9341
9342 pub fn go_to_implementation_split(
9343 &mut self,
9344 _: &GoToImplementationSplit,
9345 cx: &mut ViewContext<Self>,
9346 ) -> Task<Result<Navigated>> {
9347 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9348 }
9349
9350 pub fn go_to_type_definition(
9351 &mut self,
9352 _: &GoToTypeDefinition,
9353 cx: &mut ViewContext<Self>,
9354 ) -> Task<Result<Navigated>> {
9355 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9356 }
9357
9358 pub fn go_to_definition_split(
9359 &mut self,
9360 _: &GoToDefinitionSplit,
9361 cx: &mut ViewContext<Self>,
9362 ) -> Task<Result<Navigated>> {
9363 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9364 }
9365
9366 pub fn go_to_type_definition_split(
9367 &mut self,
9368 _: &GoToTypeDefinitionSplit,
9369 cx: &mut ViewContext<Self>,
9370 ) -> Task<Result<Navigated>> {
9371 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9372 }
9373
9374 fn go_to_definition_of_kind(
9375 &mut self,
9376 kind: GotoDefinitionKind,
9377 split: bool,
9378 cx: &mut ViewContext<Self>,
9379 ) -> Task<Result<Navigated>> {
9380 let Some(provider) = self.semantics_provider.clone() else {
9381 return Task::ready(Ok(Navigated::No));
9382 };
9383 let head = self.selections.newest::<usize>(cx).head();
9384 let buffer = self.buffer.read(cx);
9385 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9386 text_anchor
9387 } else {
9388 return Task::ready(Ok(Navigated::No));
9389 };
9390
9391 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9392 return Task::ready(Ok(Navigated::No));
9393 };
9394
9395 cx.spawn(|editor, mut cx| async move {
9396 let definitions = definitions.await?;
9397 let navigated = editor
9398 .update(&mut cx, |editor, cx| {
9399 editor.navigate_to_hover_links(
9400 Some(kind),
9401 definitions
9402 .into_iter()
9403 .filter(|location| {
9404 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9405 })
9406 .map(HoverLink::Text)
9407 .collect::<Vec<_>>(),
9408 split,
9409 cx,
9410 )
9411 })?
9412 .await?;
9413 anyhow::Ok(navigated)
9414 })
9415 }
9416
9417 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9418 let selection = self.selections.newest_anchor();
9419 let head = selection.head();
9420 let tail = selection.tail();
9421
9422 let Some((buffer, start_position)) =
9423 self.buffer.read(cx).text_anchor_for_position(head, cx)
9424 else {
9425 return;
9426 };
9427
9428 let end_position = if head != tail {
9429 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9430 return;
9431 };
9432 Some(pos)
9433 } else {
9434 None
9435 };
9436
9437 let url_finder = cx.spawn(|editor, mut cx| async move {
9438 let url = if let Some(end_pos) = end_position {
9439 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9440 } else {
9441 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9442 };
9443
9444 if let Some(url) = url {
9445 editor.update(&mut cx, |_, cx| {
9446 cx.open_url(&url);
9447 })
9448 } else {
9449 Ok(())
9450 }
9451 });
9452
9453 url_finder.detach();
9454 }
9455
9456 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9457 let Some(workspace) = self.workspace() else {
9458 return;
9459 };
9460
9461 let position = self.selections.newest_anchor().head();
9462
9463 let Some((buffer, buffer_position)) =
9464 self.buffer.read(cx).text_anchor_for_position(position, cx)
9465 else {
9466 return;
9467 };
9468
9469 let project = self.project.clone();
9470
9471 cx.spawn(|_, mut cx| async move {
9472 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9473
9474 if let Some((_, path)) = result {
9475 workspace
9476 .update(&mut cx, |workspace, cx| {
9477 workspace.open_resolved_path(path, cx)
9478 })?
9479 .await?;
9480 }
9481 anyhow::Ok(())
9482 })
9483 .detach();
9484 }
9485
9486 pub(crate) fn navigate_to_hover_links(
9487 &mut self,
9488 kind: Option<GotoDefinitionKind>,
9489 mut definitions: Vec<HoverLink>,
9490 split: bool,
9491 cx: &mut ViewContext<Editor>,
9492 ) -> Task<Result<Navigated>> {
9493 // If there is one definition, just open it directly
9494 if definitions.len() == 1 {
9495 let definition = definitions.pop().unwrap();
9496
9497 enum TargetTaskResult {
9498 Location(Option<Location>),
9499 AlreadyNavigated,
9500 }
9501
9502 let target_task = match definition {
9503 HoverLink::Text(link) => {
9504 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9505 }
9506 HoverLink::InlayHint(lsp_location, server_id) => {
9507 let computation = self.compute_target_location(lsp_location, server_id, cx);
9508 cx.background_executor().spawn(async move {
9509 let location = computation.await?;
9510 Ok(TargetTaskResult::Location(location))
9511 })
9512 }
9513 HoverLink::Url(url) => {
9514 cx.open_url(&url);
9515 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9516 }
9517 HoverLink::File(path) => {
9518 if let Some(workspace) = self.workspace() {
9519 cx.spawn(|_, mut cx| async move {
9520 workspace
9521 .update(&mut cx, |workspace, cx| {
9522 workspace.open_resolved_path(path, cx)
9523 })?
9524 .await
9525 .map(|_| TargetTaskResult::AlreadyNavigated)
9526 })
9527 } else {
9528 Task::ready(Ok(TargetTaskResult::Location(None)))
9529 }
9530 }
9531 };
9532 cx.spawn(|editor, mut cx| async move {
9533 let target = match target_task.await.context("target resolution task")? {
9534 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9535 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9536 TargetTaskResult::Location(Some(target)) => target,
9537 };
9538
9539 editor.update(&mut cx, |editor, cx| {
9540 let Some(workspace) = editor.workspace() else {
9541 return Navigated::No;
9542 };
9543 let pane = workspace.read(cx).active_pane().clone();
9544
9545 let range = target.range.to_offset(target.buffer.read(cx));
9546 let range = editor.range_for_match(&range);
9547
9548 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9549 let buffer = target.buffer.read(cx);
9550 let range = check_multiline_range(buffer, range);
9551 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9552 s.select_ranges([range]);
9553 });
9554 } else {
9555 cx.window_context().defer(move |cx| {
9556 let target_editor: View<Self> =
9557 workspace.update(cx, |workspace, cx| {
9558 let pane = if split {
9559 workspace.adjacent_pane(cx)
9560 } else {
9561 workspace.active_pane().clone()
9562 };
9563
9564 workspace.open_project_item(
9565 pane,
9566 target.buffer.clone(),
9567 true,
9568 true,
9569 cx,
9570 )
9571 });
9572 target_editor.update(cx, |target_editor, cx| {
9573 // When selecting a definition in a different buffer, disable the nav history
9574 // to avoid creating a history entry at the previous cursor location.
9575 pane.update(cx, |pane, _| pane.disable_history());
9576 let buffer = target.buffer.read(cx);
9577 let range = check_multiline_range(buffer, range);
9578 target_editor.change_selections(
9579 Some(Autoscroll::focused()),
9580 cx,
9581 |s| {
9582 s.select_ranges([range]);
9583 },
9584 );
9585 pane.update(cx, |pane, _| pane.enable_history());
9586 });
9587 });
9588 }
9589 Navigated::Yes
9590 })
9591 })
9592 } else if !definitions.is_empty() {
9593 cx.spawn(|editor, mut cx| async move {
9594 let (title, location_tasks, workspace) = editor
9595 .update(&mut cx, |editor, cx| {
9596 let tab_kind = match kind {
9597 Some(GotoDefinitionKind::Implementation) => "Implementations",
9598 _ => "Definitions",
9599 };
9600 let title = definitions
9601 .iter()
9602 .find_map(|definition| match definition {
9603 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9604 let buffer = origin.buffer.read(cx);
9605 format!(
9606 "{} for {}",
9607 tab_kind,
9608 buffer
9609 .text_for_range(origin.range.clone())
9610 .collect::<String>()
9611 )
9612 }),
9613 HoverLink::InlayHint(_, _) => None,
9614 HoverLink::Url(_) => None,
9615 HoverLink::File(_) => None,
9616 })
9617 .unwrap_or(tab_kind.to_string());
9618 let location_tasks = definitions
9619 .into_iter()
9620 .map(|definition| match definition {
9621 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9622 HoverLink::InlayHint(lsp_location, server_id) => {
9623 editor.compute_target_location(lsp_location, server_id, cx)
9624 }
9625 HoverLink::Url(_) => Task::ready(Ok(None)),
9626 HoverLink::File(_) => Task::ready(Ok(None)),
9627 })
9628 .collect::<Vec<_>>();
9629 (title, location_tasks, editor.workspace().clone())
9630 })
9631 .context("location tasks preparation")?;
9632
9633 let locations = future::join_all(location_tasks)
9634 .await
9635 .into_iter()
9636 .filter_map(|location| location.transpose())
9637 .collect::<Result<_>>()
9638 .context("location tasks")?;
9639
9640 let Some(workspace) = workspace else {
9641 return Ok(Navigated::No);
9642 };
9643 let opened = workspace
9644 .update(&mut cx, |workspace, cx| {
9645 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9646 })
9647 .ok();
9648
9649 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9650 })
9651 } else {
9652 Task::ready(Ok(Navigated::No))
9653 }
9654 }
9655
9656 fn compute_target_location(
9657 &self,
9658 lsp_location: lsp::Location,
9659 server_id: LanguageServerId,
9660 cx: &mut ViewContext<Self>,
9661 ) -> Task<anyhow::Result<Option<Location>>> {
9662 let Some(project) = self.project.clone() else {
9663 return Task::ready(Ok(None));
9664 };
9665
9666 cx.spawn(move |editor, mut cx| async move {
9667 let location_task = editor.update(&mut cx, |_, cx| {
9668 project.update(cx, |project, cx| {
9669 let language_server_name = project
9670 .language_server_statuses(cx)
9671 .find(|(id, _)| server_id == *id)
9672 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9673 language_server_name.map(|language_server_name| {
9674 project.open_local_buffer_via_lsp(
9675 lsp_location.uri.clone(),
9676 server_id,
9677 language_server_name,
9678 cx,
9679 )
9680 })
9681 })
9682 })?;
9683 let location = match location_task {
9684 Some(task) => Some({
9685 let target_buffer_handle = task.await.context("open local buffer")?;
9686 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9687 let target_start = target_buffer
9688 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9689 let target_end = target_buffer
9690 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9691 target_buffer.anchor_after(target_start)
9692 ..target_buffer.anchor_before(target_end)
9693 })?;
9694 Location {
9695 buffer: target_buffer_handle,
9696 range,
9697 }
9698 }),
9699 None => None,
9700 };
9701 Ok(location)
9702 })
9703 }
9704
9705 pub fn find_all_references(
9706 &mut self,
9707 _: &FindAllReferences,
9708 cx: &mut ViewContext<Self>,
9709 ) -> Option<Task<Result<Navigated>>> {
9710 let selection = self.selections.newest::<usize>(cx);
9711 let multi_buffer = self.buffer.read(cx);
9712 let head = selection.head();
9713
9714 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9715 let head_anchor = multi_buffer_snapshot.anchor_at(
9716 head,
9717 if head < selection.tail() {
9718 Bias::Right
9719 } else {
9720 Bias::Left
9721 },
9722 );
9723
9724 match self
9725 .find_all_references_task_sources
9726 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9727 {
9728 Ok(_) => {
9729 log::info!(
9730 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9731 );
9732 return None;
9733 }
9734 Err(i) => {
9735 self.find_all_references_task_sources.insert(i, head_anchor);
9736 }
9737 }
9738
9739 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9740 let workspace = self.workspace()?;
9741 let project = workspace.read(cx).project().clone();
9742 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9743 Some(cx.spawn(|editor, mut cx| async move {
9744 let _cleanup = defer({
9745 let mut cx = cx.clone();
9746 move || {
9747 let _ = editor.update(&mut cx, |editor, _| {
9748 if let Ok(i) =
9749 editor
9750 .find_all_references_task_sources
9751 .binary_search_by(|anchor| {
9752 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9753 })
9754 {
9755 editor.find_all_references_task_sources.remove(i);
9756 }
9757 });
9758 }
9759 });
9760
9761 let locations = references.await?;
9762 if locations.is_empty() {
9763 return anyhow::Ok(Navigated::No);
9764 }
9765
9766 workspace.update(&mut cx, |workspace, cx| {
9767 let title = locations
9768 .first()
9769 .as_ref()
9770 .map(|location| {
9771 let buffer = location.buffer.read(cx);
9772 format!(
9773 "References to `{}`",
9774 buffer
9775 .text_for_range(location.range.clone())
9776 .collect::<String>()
9777 )
9778 })
9779 .unwrap();
9780 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9781 Navigated::Yes
9782 })
9783 }))
9784 }
9785
9786 /// Opens a multibuffer with the given project locations in it
9787 pub fn open_locations_in_multibuffer(
9788 workspace: &mut Workspace,
9789 mut locations: Vec<Location>,
9790 title: String,
9791 split: bool,
9792 cx: &mut ViewContext<Workspace>,
9793 ) {
9794 // If there are multiple definitions, open them in a multibuffer
9795 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9796 let mut locations = locations.into_iter().peekable();
9797 let mut ranges_to_highlight = Vec::new();
9798 let capability = workspace.project().read(cx).capability();
9799
9800 let excerpt_buffer = cx.new_model(|cx| {
9801 let mut multibuffer = MultiBuffer::new(capability);
9802 while let Some(location) = locations.next() {
9803 let buffer = location.buffer.read(cx);
9804 let mut ranges_for_buffer = Vec::new();
9805 let range = location.range.to_offset(buffer);
9806 ranges_for_buffer.push(range.clone());
9807
9808 while let Some(next_location) = locations.peek() {
9809 if next_location.buffer == location.buffer {
9810 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9811 locations.next();
9812 } else {
9813 break;
9814 }
9815 }
9816
9817 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9818 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9819 location.buffer.clone(),
9820 ranges_for_buffer,
9821 DEFAULT_MULTIBUFFER_CONTEXT,
9822 cx,
9823 ))
9824 }
9825
9826 multibuffer.with_title(title)
9827 });
9828
9829 let editor = cx.new_view(|cx| {
9830 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9831 });
9832 editor.update(cx, |editor, cx| {
9833 if let Some(first_range) = ranges_to_highlight.first() {
9834 editor.change_selections(None, cx, |selections| {
9835 selections.clear_disjoint();
9836 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9837 });
9838 }
9839 editor.highlight_background::<Self>(
9840 &ranges_to_highlight,
9841 |theme| theme.editor_highlighted_line_background,
9842 cx,
9843 );
9844 editor.register_buffers_with_language_servers(cx);
9845 });
9846
9847 let item = Box::new(editor);
9848 let item_id = item.item_id();
9849
9850 if split {
9851 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9852 } else {
9853 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9854 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9855 pane.close_current_preview_item(cx)
9856 } else {
9857 None
9858 }
9859 });
9860 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9861 }
9862 workspace.active_pane().update(cx, |pane, cx| {
9863 pane.set_preview_item_id(Some(item_id), cx);
9864 });
9865 }
9866
9867 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9868 use language::ToOffset as _;
9869
9870 let provider = self.semantics_provider.clone()?;
9871 let selection = self.selections.newest_anchor().clone();
9872 let (cursor_buffer, cursor_buffer_position) = self
9873 .buffer
9874 .read(cx)
9875 .text_anchor_for_position(selection.head(), cx)?;
9876 let (tail_buffer, cursor_buffer_position_end) = self
9877 .buffer
9878 .read(cx)
9879 .text_anchor_for_position(selection.tail(), cx)?;
9880 if tail_buffer != cursor_buffer {
9881 return None;
9882 }
9883
9884 let snapshot = cursor_buffer.read(cx).snapshot();
9885 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9886 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9887 let prepare_rename = provider
9888 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9889 .unwrap_or_else(|| Task::ready(Ok(None)));
9890 drop(snapshot);
9891
9892 Some(cx.spawn(|this, mut cx| async move {
9893 let rename_range = if let Some(range) = prepare_rename.await? {
9894 Some(range)
9895 } else {
9896 this.update(&mut cx, |this, cx| {
9897 let buffer = this.buffer.read(cx).snapshot(cx);
9898 let mut buffer_highlights = this
9899 .document_highlights_for_position(selection.head(), &buffer)
9900 .filter(|highlight| {
9901 highlight.start.excerpt_id == selection.head().excerpt_id
9902 && highlight.end.excerpt_id == selection.head().excerpt_id
9903 });
9904 buffer_highlights
9905 .next()
9906 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9907 })?
9908 };
9909 if let Some(rename_range) = rename_range {
9910 this.update(&mut cx, |this, cx| {
9911 let snapshot = cursor_buffer.read(cx).snapshot();
9912 let rename_buffer_range = rename_range.to_offset(&snapshot);
9913 let cursor_offset_in_rename_range =
9914 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9915 let cursor_offset_in_rename_range_end =
9916 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9917
9918 this.take_rename(false, cx);
9919 let buffer = this.buffer.read(cx).read(cx);
9920 let cursor_offset = selection.head().to_offset(&buffer);
9921 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9922 let rename_end = rename_start + rename_buffer_range.len();
9923 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9924 let mut old_highlight_id = None;
9925 let old_name: Arc<str> = buffer
9926 .chunks(rename_start..rename_end, true)
9927 .map(|chunk| {
9928 if old_highlight_id.is_none() {
9929 old_highlight_id = chunk.syntax_highlight_id;
9930 }
9931 chunk.text
9932 })
9933 .collect::<String>()
9934 .into();
9935
9936 drop(buffer);
9937
9938 // Position the selection in the rename editor so that it matches the current selection.
9939 this.show_local_selections = false;
9940 let rename_editor = cx.new_view(|cx| {
9941 let mut editor = Editor::single_line(cx);
9942 editor.buffer.update(cx, |buffer, cx| {
9943 buffer.edit([(0..0, old_name.clone())], None, cx)
9944 });
9945 let rename_selection_range = match cursor_offset_in_rename_range
9946 .cmp(&cursor_offset_in_rename_range_end)
9947 {
9948 Ordering::Equal => {
9949 editor.select_all(&SelectAll, cx);
9950 return editor;
9951 }
9952 Ordering::Less => {
9953 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9954 }
9955 Ordering::Greater => {
9956 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9957 }
9958 };
9959 if rename_selection_range.end > old_name.len() {
9960 editor.select_all(&SelectAll, cx);
9961 } else {
9962 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9963 s.select_ranges([rename_selection_range]);
9964 });
9965 }
9966 editor
9967 });
9968 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9969 if e == &EditorEvent::Focused {
9970 cx.emit(EditorEvent::FocusedIn)
9971 }
9972 })
9973 .detach();
9974
9975 let write_highlights =
9976 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9977 let read_highlights =
9978 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9979 let ranges = write_highlights
9980 .iter()
9981 .flat_map(|(_, ranges)| ranges.iter())
9982 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9983 .cloned()
9984 .collect();
9985
9986 this.highlight_text::<Rename>(
9987 ranges,
9988 HighlightStyle {
9989 fade_out: Some(0.6),
9990 ..Default::default()
9991 },
9992 cx,
9993 );
9994 let rename_focus_handle = rename_editor.focus_handle(cx);
9995 cx.focus(&rename_focus_handle);
9996 let block_id = this.insert_blocks(
9997 [BlockProperties {
9998 style: BlockStyle::Flex,
9999 placement: BlockPlacement::Below(range.start),
10000 height: 1,
10001 render: Arc::new({
10002 let rename_editor = rename_editor.clone();
10003 move |cx: &mut BlockContext| {
10004 let mut text_style = cx.editor_style.text.clone();
10005 if let Some(highlight_style) = old_highlight_id
10006 .and_then(|h| h.style(&cx.editor_style.syntax))
10007 {
10008 text_style = text_style.highlight(highlight_style);
10009 }
10010 div()
10011 .block_mouse_down()
10012 .pl(cx.anchor_x)
10013 .child(EditorElement::new(
10014 &rename_editor,
10015 EditorStyle {
10016 background: cx.theme().system().transparent,
10017 local_player: cx.editor_style.local_player,
10018 text: text_style,
10019 scrollbar_width: cx.editor_style.scrollbar_width,
10020 syntax: cx.editor_style.syntax.clone(),
10021 status: cx.editor_style.status.clone(),
10022 inlay_hints_style: HighlightStyle {
10023 font_weight: Some(FontWeight::BOLD),
10024 ..make_inlay_hints_style(cx)
10025 },
10026 inline_completion_styles: make_suggestion_styles(
10027 cx,
10028 ),
10029 ..EditorStyle::default()
10030 },
10031 ))
10032 .into_any_element()
10033 }
10034 }),
10035 priority: 0,
10036 }],
10037 Some(Autoscroll::fit()),
10038 cx,
10039 )[0];
10040 this.pending_rename = Some(RenameState {
10041 range,
10042 old_name,
10043 editor: rename_editor,
10044 block_id,
10045 });
10046 })?;
10047 }
10048
10049 Ok(())
10050 }))
10051 }
10052
10053 pub fn confirm_rename(
10054 &mut self,
10055 _: &ConfirmRename,
10056 cx: &mut ViewContext<Self>,
10057 ) -> Option<Task<Result<()>>> {
10058 let rename = self.take_rename(false, cx)?;
10059 let workspace = self.workspace()?.downgrade();
10060 let (buffer, start) = self
10061 .buffer
10062 .read(cx)
10063 .text_anchor_for_position(rename.range.start, cx)?;
10064 let (end_buffer, _) = self
10065 .buffer
10066 .read(cx)
10067 .text_anchor_for_position(rename.range.end, cx)?;
10068 if buffer != end_buffer {
10069 return None;
10070 }
10071
10072 let old_name = rename.old_name;
10073 let new_name = rename.editor.read(cx).text(cx);
10074
10075 let rename = self.semantics_provider.as_ref()?.perform_rename(
10076 &buffer,
10077 start,
10078 new_name.clone(),
10079 cx,
10080 )?;
10081
10082 Some(cx.spawn(|editor, mut cx| async move {
10083 let project_transaction = rename.await?;
10084 Self::open_project_transaction(
10085 &editor,
10086 workspace,
10087 project_transaction,
10088 format!("Rename: {} → {}", old_name, new_name),
10089 cx.clone(),
10090 )
10091 .await?;
10092
10093 editor.update(&mut cx, |editor, cx| {
10094 editor.refresh_document_highlights(cx);
10095 })?;
10096 Ok(())
10097 }))
10098 }
10099
10100 fn take_rename(
10101 &mut self,
10102 moving_cursor: bool,
10103 cx: &mut ViewContext<Self>,
10104 ) -> Option<RenameState> {
10105 let rename = self.pending_rename.take()?;
10106 if rename.editor.focus_handle(cx).is_focused(cx) {
10107 cx.focus(&self.focus_handle);
10108 }
10109
10110 self.remove_blocks(
10111 [rename.block_id].into_iter().collect(),
10112 Some(Autoscroll::fit()),
10113 cx,
10114 );
10115 self.clear_highlights::<Rename>(cx);
10116 self.show_local_selections = true;
10117
10118 if moving_cursor {
10119 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10120 editor.selections.newest::<usize>(cx).head()
10121 });
10122
10123 // Update the selection to match the position of the selection inside
10124 // the rename editor.
10125 let snapshot = self.buffer.read(cx).read(cx);
10126 let rename_range = rename.range.to_offset(&snapshot);
10127 let cursor_in_editor = snapshot
10128 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10129 .min(rename_range.end);
10130 drop(snapshot);
10131
10132 self.change_selections(None, cx, |s| {
10133 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10134 });
10135 } else {
10136 self.refresh_document_highlights(cx);
10137 }
10138
10139 Some(rename)
10140 }
10141
10142 pub fn pending_rename(&self) -> Option<&RenameState> {
10143 self.pending_rename.as_ref()
10144 }
10145
10146 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10147 let project = match &self.project {
10148 Some(project) => project.clone(),
10149 None => return None,
10150 };
10151
10152 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10153 }
10154
10155 fn format_selections(
10156 &mut self,
10157 _: &FormatSelections,
10158 cx: &mut ViewContext<Self>,
10159 ) -> Option<Task<Result<()>>> {
10160 let project = match &self.project {
10161 Some(project) => project.clone(),
10162 None => return None,
10163 };
10164
10165 let selections = self
10166 .selections
10167 .all_adjusted(cx)
10168 .into_iter()
10169 .filter(|s| !s.is_empty())
10170 .collect_vec();
10171
10172 Some(self.perform_format(
10173 project,
10174 FormatTrigger::Manual,
10175 FormatTarget::Ranges(selections),
10176 cx,
10177 ))
10178 }
10179
10180 fn perform_format(
10181 &mut self,
10182 project: Model<Project>,
10183 trigger: FormatTrigger,
10184 target: FormatTarget,
10185 cx: &mut ViewContext<Self>,
10186 ) -> Task<Result<()>> {
10187 let buffer = self.buffer().clone();
10188 let mut buffers = buffer.read(cx).all_buffers();
10189 if trigger == FormatTrigger::Save {
10190 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10191 }
10192
10193 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10194 let format = project.update(cx, |project, cx| {
10195 project.format(buffers, true, trigger, target, cx)
10196 });
10197
10198 cx.spawn(|_, mut cx| async move {
10199 let transaction = futures::select_biased! {
10200 () = timeout => {
10201 log::warn!("timed out waiting for formatting");
10202 None
10203 }
10204 transaction = format.log_err().fuse() => transaction,
10205 };
10206
10207 buffer
10208 .update(&mut cx, |buffer, cx| {
10209 if let Some(transaction) = transaction {
10210 if !buffer.is_singleton() {
10211 buffer.push_transaction(&transaction.0, cx);
10212 }
10213 }
10214
10215 cx.notify();
10216 })
10217 .ok();
10218
10219 Ok(())
10220 })
10221 }
10222
10223 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10224 if let Some(project) = self.project.clone() {
10225 self.buffer.update(cx, |multi_buffer, cx| {
10226 project.update(cx, |project, cx| {
10227 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10228 });
10229 })
10230 }
10231 }
10232
10233 fn cancel_language_server_work(
10234 &mut self,
10235 _: &actions::CancelLanguageServerWork,
10236 cx: &mut ViewContext<Self>,
10237 ) {
10238 if let Some(project) = self.project.clone() {
10239 self.buffer.update(cx, |multi_buffer, cx| {
10240 project.update(cx, |project, cx| {
10241 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10242 });
10243 })
10244 }
10245 }
10246
10247 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10248 cx.show_character_palette();
10249 }
10250
10251 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10252 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10253 let buffer = self.buffer.read(cx).snapshot(cx);
10254 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10255 let is_valid = buffer
10256 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10257 .any(|entry| {
10258 entry.diagnostic.is_primary
10259 && !entry.range.is_empty()
10260 && entry.range.start == primary_range_start
10261 && entry.diagnostic.message == active_diagnostics.primary_message
10262 });
10263
10264 if is_valid != active_diagnostics.is_valid {
10265 active_diagnostics.is_valid = is_valid;
10266 let mut new_styles = HashMap::default();
10267 for (block_id, diagnostic) in &active_diagnostics.blocks {
10268 new_styles.insert(
10269 *block_id,
10270 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10271 );
10272 }
10273 self.display_map.update(cx, |display_map, _cx| {
10274 display_map.replace_blocks(new_styles)
10275 });
10276 }
10277 }
10278 }
10279
10280 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10281 self.dismiss_diagnostics(cx);
10282 let snapshot = self.snapshot(cx);
10283 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10284 let buffer = self.buffer.read(cx).snapshot(cx);
10285
10286 let mut primary_range = None;
10287 let mut primary_message = None;
10288 let mut group_end = Point::zero();
10289 let diagnostic_group = buffer
10290 .diagnostic_group::<MultiBufferPoint>(group_id)
10291 .filter_map(|entry| {
10292 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10293 && (entry.range.start.row == entry.range.end.row
10294 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10295 {
10296 return None;
10297 }
10298 if entry.range.end > group_end {
10299 group_end = entry.range.end;
10300 }
10301 if entry.diagnostic.is_primary {
10302 primary_range = Some(entry.range.clone());
10303 primary_message = Some(entry.diagnostic.message.clone());
10304 }
10305 Some(entry)
10306 })
10307 .collect::<Vec<_>>();
10308 let primary_range = primary_range?;
10309 let primary_message = primary_message?;
10310 let primary_range =
10311 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10312
10313 let blocks = display_map
10314 .insert_blocks(
10315 diagnostic_group.iter().map(|entry| {
10316 let diagnostic = entry.diagnostic.clone();
10317 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10318 BlockProperties {
10319 style: BlockStyle::Fixed,
10320 placement: BlockPlacement::Below(
10321 buffer.anchor_after(entry.range.start),
10322 ),
10323 height: message_height,
10324 render: diagnostic_block_renderer(diagnostic, None, true, true),
10325 priority: 0,
10326 }
10327 }),
10328 cx,
10329 )
10330 .into_iter()
10331 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10332 .collect();
10333
10334 Some(ActiveDiagnosticGroup {
10335 primary_range,
10336 primary_message,
10337 group_id,
10338 blocks,
10339 is_valid: true,
10340 })
10341 });
10342 self.active_diagnostics.is_some()
10343 }
10344
10345 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10346 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10347 self.display_map.update(cx, |display_map, cx| {
10348 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10349 });
10350 cx.notify();
10351 }
10352 }
10353
10354 pub fn set_selections_from_remote(
10355 &mut self,
10356 selections: Vec<Selection<Anchor>>,
10357 pending_selection: Option<Selection<Anchor>>,
10358 cx: &mut ViewContext<Self>,
10359 ) {
10360 let old_cursor_position = self.selections.newest_anchor().head();
10361 self.selections.change_with(cx, |s| {
10362 s.select_anchors(selections);
10363 if let Some(pending_selection) = pending_selection {
10364 s.set_pending(pending_selection, SelectMode::Character);
10365 } else {
10366 s.clear_pending();
10367 }
10368 });
10369 self.selections_did_change(false, &old_cursor_position, true, cx);
10370 }
10371
10372 fn push_to_selection_history(&mut self) {
10373 self.selection_history.push(SelectionHistoryEntry {
10374 selections: self.selections.disjoint_anchors(),
10375 select_next_state: self.select_next_state.clone(),
10376 select_prev_state: self.select_prev_state.clone(),
10377 add_selections_state: self.add_selections_state.clone(),
10378 });
10379 }
10380
10381 pub fn transact(
10382 &mut self,
10383 cx: &mut ViewContext<Self>,
10384 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10385 ) -> Option<TransactionId> {
10386 self.start_transaction_at(Instant::now(), cx);
10387 update(self, cx);
10388 self.end_transaction_at(Instant::now(), cx)
10389 }
10390
10391 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10392 self.end_selection(cx);
10393 if let Some(tx_id) = self
10394 .buffer
10395 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10396 {
10397 self.selection_history
10398 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10399 cx.emit(EditorEvent::TransactionBegun {
10400 transaction_id: tx_id,
10401 })
10402 }
10403 }
10404
10405 fn end_transaction_at(
10406 &mut self,
10407 now: Instant,
10408 cx: &mut ViewContext<Self>,
10409 ) -> Option<TransactionId> {
10410 if let Some(transaction_id) = self
10411 .buffer
10412 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10413 {
10414 if let Some((_, end_selections)) =
10415 self.selection_history.transaction_mut(transaction_id)
10416 {
10417 *end_selections = Some(self.selections.disjoint_anchors());
10418 } else {
10419 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10420 }
10421
10422 cx.emit(EditorEvent::Edited { transaction_id });
10423 Some(transaction_id)
10424 } else {
10425 None
10426 }
10427 }
10428
10429 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10430 if self.is_singleton(cx) {
10431 let selection = self.selections.newest::<Point>(cx);
10432
10433 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10434 let range = if selection.is_empty() {
10435 let point = selection.head().to_display_point(&display_map);
10436 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10437 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10438 .to_point(&display_map);
10439 start..end
10440 } else {
10441 selection.range()
10442 };
10443 if display_map.folds_in_range(range).next().is_some() {
10444 self.unfold_lines(&Default::default(), cx)
10445 } else {
10446 self.fold(&Default::default(), cx)
10447 }
10448 } else {
10449 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10450 let mut toggled_buffers = HashSet::default();
10451 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10452 self.selections
10453 .disjoint_anchors()
10454 .into_iter()
10455 .map(|selection| selection.range()),
10456 ) {
10457 let buffer_id = buffer_snapshot.remote_id();
10458 if toggled_buffers.insert(buffer_id) {
10459 if self.buffer_folded(buffer_id, cx) {
10460 self.unfold_buffer(buffer_id, cx);
10461 } else {
10462 self.fold_buffer(buffer_id, cx);
10463 }
10464 }
10465 }
10466 }
10467 }
10468
10469 pub fn toggle_fold_recursive(
10470 &mut self,
10471 _: &actions::ToggleFoldRecursive,
10472 cx: &mut ViewContext<Self>,
10473 ) {
10474 let selection = self.selections.newest::<Point>(cx);
10475
10476 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10477 let range = if selection.is_empty() {
10478 let point = selection.head().to_display_point(&display_map);
10479 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10480 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10481 .to_point(&display_map);
10482 start..end
10483 } else {
10484 selection.range()
10485 };
10486 if display_map.folds_in_range(range).next().is_some() {
10487 self.unfold_recursive(&Default::default(), cx)
10488 } else {
10489 self.fold_recursive(&Default::default(), cx)
10490 }
10491 }
10492
10493 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10494 if self.is_singleton(cx) {
10495 let mut to_fold = Vec::new();
10496 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10497 let selections = self.selections.all_adjusted(cx);
10498
10499 for selection in selections {
10500 let range = selection.range().sorted();
10501 let buffer_start_row = range.start.row;
10502
10503 if range.start.row != range.end.row {
10504 let mut found = false;
10505 let mut row = range.start.row;
10506 while row <= range.end.row {
10507 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10508 {
10509 found = true;
10510 row = crease.range().end.row + 1;
10511 to_fold.push(crease);
10512 } else {
10513 row += 1
10514 }
10515 }
10516 if found {
10517 continue;
10518 }
10519 }
10520
10521 for row in (0..=range.start.row).rev() {
10522 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10523 if crease.range().end.row >= buffer_start_row {
10524 to_fold.push(crease);
10525 if row <= range.start.row {
10526 break;
10527 }
10528 }
10529 }
10530 }
10531 }
10532
10533 self.fold_creases(to_fold, true, cx);
10534 } else {
10535 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10536 let mut folded_buffers = HashSet::default();
10537 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10538 self.selections
10539 .disjoint_anchors()
10540 .into_iter()
10541 .map(|selection| selection.range()),
10542 ) {
10543 let buffer_id = buffer_snapshot.remote_id();
10544 if folded_buffers.insert(buffer_id) {
10545 self.fold_buffer(buffer_id, cx);
10546 }
10547 }
10548 }
10549 }
10550
10551 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10552 if !self.buffer.read(cx).is_singleton() {
10553 return;
10554 }
10555
10556 let fold_at_level = fold_at.level;
10557 let snapshot = self.buffer.read(cx).snapshot(cx);
10558 let mut to_fold = Vec::new();
10559 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10560
10561 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10562 while start_row < end_row {
10563 match self
10564 .snapshot(cx)
10565 .crease_for_buffer_row(MultiBufferRow(start_row))
10566 {
10567 Some(crease) => {
10568 let nested_start_row = crease.range().start.row + 1;
10569 let nested_end_row = crease.range().end.row;
10570
10571 if current_level < fold_at_level {
10572 stack.push((nested_start_row, nested_end_row, current_level + 1));
10573 } else if current_level == fold_at_level {
10574 to_fold.push(crease);
10575 }
10576
10577 start_row = nested_end_row + 1;
10578 }
10579 None => start_row += 1,
10580 }
10581 }
10582 }
10583
10584 self.fold_creases(to_fold, true, cx);
10585 }
10586
10587 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10588 if self.buffer.read(cx).is_singleton() {
10589 let mut fold_ranges = Vec::new();
10590 let snapshot = self.buffer.read(cx).snapshot(cx);
10591
10592 for row in 0..snapshot.max_row().0 {
10593 if let Some(foldable_range) =
10594 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10595 {
10596 fold_ranges.push(foldable_range);
10597 }
10598 }
10599
10600 self.fold_creases(fold_ranges, true, cx);
10601 } else {
10602 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10603 editor
10604 .update(&mut cx, |editor, cx| {
10605 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10606 editor.fold_buffer(buffer_id, cx);
10607 }
10608 })
10609 .ok();
10610 });
10611 }
10612 }
10613
10614 pub fn fold_function_bodies(
10615 &mut self,
10616 _: &actions::FoldFunctionBodies,
10617 cx: &mut ViewContext<Self>,
10618 ) {
10619 let snapshot = self.buffer.read(cx).snapshot(cx);
10620 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10621 return;
10622 };
10623 let creases = buffer
10624 .function_body_fold_ranges(0..buffer.len())
10625 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10626 .collect();
10627
10628 self.fold_creases(creases, true, cx);
10629 }
10630
10631 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10632 let mut to_fold = Vec::new();
10633 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10634 let selections = self.selections.all_adjusted(cx);
10635
10636 for selection in selections {
10637 let range = selection.range().sorted();
10638 let buffer_start_row = range.start.row;
10639
10640 if range.start.row != range.end.row {
10641 let mut found = false;
10642 for row in range.start.row..=range.end.row {
10643 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10644 found = true;
10645 to_fold.push(crease);
10646 }
10647 }
10648 if found {
10649 continue;
10650 }
10651 }
10652
10653 for row in (0..=range.start.row).rev() {
10654 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10655 if crease.range().end.row >= buffer_start_row {
10656 to_fold.push(crease);
10657 } else {
10658 break;
10659 }
10660 }
10661 }
10662 }
10663
10664 self.fold_creases(to_fold, true, cx);
10665 }
10666
10667 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10668 let buffer_row = fold_at.buffer_row;
10669 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10670
10671 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10672 let autoscroll = self
10673 .selections
10674 .all::<Point>(cx)
10675 .iter()
10676 .any(|selection| crease.range().overlaps(&selection.range()));
10677
10678 self.fold_creases(vec![crease], autoscroll, cx);
10679 }
10680 }
10681
10682 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10683 if self.is_singleton(cx) {
10684 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10685 let buffer = &display_map.buffer_snapshot;
10686 let selections = self.selections.all::<Point>(cx);
10687 let ranges = selections
10688 .iter()
10689 .map(|s| {
10690 let range = s.display_range(&display_map).sorted();
10691 let mut start = range.start.to_point(&display_map);
10692 let mut end = range.end.to_point(&display_map);
10693 start.column = 0;
10694 end.column = buffer.line_len(MultiBufferRow(end.row));
10695 start..end
10696 })
10697 .collect::<Vec<_>>();
10698
10699 self.unfold_ranges(&ranges, true, true, cx);
10700 } else {
10701 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10702 let mut unfolded_buffers = HashSet::default();
10703 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10704 self.selections
10705 .disjoint_anchors()
10706 .into_iter()
10707 .map(|selection| selection.range()),
10708 ) {
10709 let buffer_id = buffer_snapshot.remote_id();
10710 if unfolded_buffers.insert(buffer_id) {
10711 self.unfold_buffer(buffer_id, cx);
10712 }
10713 }
10714 }
10715 }
10716
10717 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10718 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10719 let selections = self.selections.all::<Point>(cx);
10720 let ranges = selections
10721 .iter()
10722 .map(|s| {
10723 let mut range = s.display_range(&display_map).sorted();
10724 *range.start.column_mut() = 0;
10725 *range.end.column_mut() = display_map.line_len(range.end.row());
10726 let start = range.start.to_point(&display_map);
10727 let end = range.end.to_point(&display_map);
10728 start..end
10729 })
10730 .collect::<Vec<_>>();
10731
10732 self.unfold_ranges(&ranges, true, true, cx);
10733 }
10734
10735 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10736 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10737
10738 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10739 ..Point::new(
10740 unfold_at.buffer_row.0,
10741 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10742 );
10743
10744 let autoscroll = self
10745 .selections
10746 .all::<Point>(cx)
10747 .iter()
10748 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10749
10750 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10751 }
10752
10753 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10754 if self.buffer.read(cx).is_singleton() {
10755 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10756 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10757 } else {
10758 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10759 editor
10760 .update(&mut cx, |editor, cx| {
10761 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10762 editor.unfold_buffer(buffer_id, cx);
10763 }
10764 })
10765 .ok();
10766 });
10767 }
10768 }
10769
10770 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10771 let selections = self.selections.all::<Point>(cx);
10772 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10773 let line_mode = self.selections.line_mode;
10774 let ranges = selections
10775 .into_iter()
10776 .map(|s| {
10777 if line_mode {
10778 let start = Point::new(s.start.row, 0);
10779 let end = Point::new(
10780 s.end.row,
10781 display_map
10782 .buffer_snapshot
10783 .line_len(MultiBufferRow(s.end.row)),
10784 );
10785 Crease::simple(start..end, display_map.fold_placeholder.clone())
10786 } else {
10787 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10788 }
10789 })
10790 .collect::<Vec<_>>();
10791 self.fold_creases(ranges, true, cx);
10792 }
10793
10794 pub fn fold_creases<T: ToOffset + Clone>(
10795 &mut self,
10796 creases: Vec<Crease<T>>,
10797 auto_scroll: bool,
10798 cx: &mut ViewContext<Self>,
10799 ) {
10800 if creases.is_empty() {
10801 return;
10802 }
10803
10804 let mut buffers_affected = HashSet::default();
10805 let multi_buffer = self.buffer().read(cx);
10806 for crease in &creases {
10807 if let Some((_, buffer, _)) =
10808 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10809 {
10810 buffers_affected.insert(buffer.read(cx).remote_id());
10811 };
10812 }
10813
10814 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10815
10816 if auto_scroll {
10817 self.request_autoscroll(Autoscroll::fit(), cx);
10818 }
10819
10820 for buffer_id in buffers_affected {
10821 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10822 }
10823
10824 cx.notify();
10825
10826 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10827 // Clear diagnostics block when folding a range that contains it.
10828 let snapshot = self.snapshot(cx);
10829 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10830 drop(snapshot);
10831 self.active_diagnostics = Some(active_diagnostics);
10832 self.dismiss_diagnostics(cx);
10833 } else {
10834 self.active_diagnostics = Some(active_diagnostics);
10835 }
10836 }
10837
10838 self.scrollbar_marker_state.dirty = true;
10839 }
10840
10841 /// Removes any folds whose ranges intersect any of the given ranges.
10842 pub fn unfold_ranges<T: ToOffset + Clone>(
10843 &mut self,
10844 ranges: &[Range<T>],
10845 inclusive: bool,
10846 auto_scroll: bool,
10847 cx: &mut ViewContext<Self>,
10848 ) {
10849 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10850 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10851 });
10852 }
10853
10854 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10855 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10856 return;
10857 }
10858 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10859 return;
10860 };
10861 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10862 self.display_map
10863 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10864 cx.emit(EditorEvent::BufferFoldToggled {
10865 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10866 folded: true,
10867 });
10868 cx.notify();
10869 }
10870
10871 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10872 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10873 return;
10874 }
10875 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10876 return;
10877 };
10878 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10879 self.display_map.update(cx, |display_map, cx| {
10880 display_map.unfold_buffer(buffer_id, cx);
10881 });
10882 cx.emit(EditorEvent::BufferFoldToggled {
10883 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10884 folded: false,
10885 });
10886 cx.notify();
10887 }
10888
10889 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10890 self.display_map.read(cx).buffer_folded(buffer)
10891 }
10892
10893 /// Removes any folds with the given ranges.
10894 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10895 &mut self,
10896 ranges: &[Range<T>],
10897 type_id: TypeId,
10898 auto_scroll: bool,
10899 cx: &mut ViewContext<Self>,
10900 ) {
10901 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10902 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10903 });
10904 }
10905
10906 fn remove_folds_with<T: ToOffset + Clone>(
10907 &mut self,
10908 ranges: &[Range<T>],
10909 auto_scroll: bool,
10910 cx: &mut ViewContext<Self>,
10911 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10912 ) {
10913 if ranges.is_empty() {
10914 return;
10915 }
10916
10917 let mut buffers_affected = HashSet::default();
10918 let multi_buffer = self.buffer().read(cx);
10919 for range in ranges {
10920 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10921 buffers_affected.insert(buffer.read(cx).remote_id());
10922 };
10923 }
10924
10925 self.display_map.update(cx, update);
10926
10927 if auto_scroll {
10928 self.request_autoscroll(Autoscroll::fit(), cx);
10929 }
10930
10931 for buffer_id in buffers_affected {
10932 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10933 }
10934
10935 cx.notify();
10936 self.scrollbar_marker_state.dirty = true;
10937 self.active_indent_guides_state.dirty = true;
10938 }
10939
10940 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10941 self.display_map.read(cx).fold_placeholder.clone()
10942 }
10943
10944 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10945 if hovered != self.gutter_hovered {
10946 self.gutter_hovered = hovered;
10947 cx.notify();
10948 }
10949 }
10950
10951 pub fn insert_blocks(
10952 &mut self,
10953 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10954 autoscroll: Option<Autoscroll>,
10955 cx: &mut ViewContext<Self>,
10956 ) -> Vec<CustomBlockId> {
10957 let blocks = self
10958 .display_map
10959 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10960 if let Some(autoscroll) = autoscroll {
10961 self.request_autoscroll(autoscroll, cx);
10962 }
10963 cx.notify();
10964 blocks
10965 }
10966
10967 pub fn resize_blocks(
10968 &mut self,
10969 heights: HashMap<CustomBlockId, u32>,
10970 autoscroll: Option<Autoscroll>,
10971 cx: &mut ViewContext<Self>,
10972 ) {
10973 self.display_map
10974 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10975 if let Some(autoscroll) = autoscroll {
10976 self.request_autoscroll(autoscroll, cx);
10977 }
10978 cx.notify();
10979 }
10980
10981 pub fn replace_blocks(
10982 &mut self,
10983 renderers: HashMap<CustomBlockId, RenderBlock>,
10984 autoscroll: Option<Autoscroll>,
10985 cx: &mut ViewContext<Self>,
10986 ) {
10987 self.display_map
10988 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10989 if let Some(autoscroll) = autoscroll {
10990 self.request_autoscroll(autoscroll, cx);
10991 }
10992 cx.notify();
10993 }
10994
10995 pub fn remove_blocks(
10996 &mut self,
10997 block_ids: HashSet<CustomBlockId>,
10998 autoscroll: Option<Autoscroll>,
10999 cx: &mut ViewContext<Self>,
11000 ) {
11001 self.display_map.update(cx, |display_map, cx| {
11002 display_map.remove_blocks(block_ids, cx)
11003 });
11004 if let Some(autoscroll) = autoscroll {
11005 self.request_autoscroll(autoscroll, cx);
11006 }
11007 cx.notify();
11008 }
11009
11010 pub fn row_for_block(
11011 &self,
11012 block_id: CustomBlockId,
11013 cx: &mut ViewContext<Self>,
11014 ) -> Option<DisplayRow> {
11015 self.display_map
11016 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11017 }
11018
11019 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11020 self.focused_block = Some(focused_block);
11021 }
11022
11023 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11024 self.focused_block.take()
11025 }
11026
11027 pub fn insert_creases(
11028 &mut self,
11029 creases: impl IntoIterator<Item = Crease<Anchor>>,
11030 cx: &mut ViewContext<Self>,
11031 ) -> Vec<CreaseId> {
11032 self.display_map
11033 .update(cx, |map, cx| map.insert_creases(creases, cx))
11034 }
11035
11036 pub fn remove_creases(
11037 &mut self,
11038 ids: impl IntoIterator<Item = CreaseId>,
11039 cx: &mut ViewContext<Self>,
11040 ) {
11041 self.display_map
11042 .update(cx, |map, cx| map.remove_creases(ids, cx));
11043 }
11044
11045 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11046 self.display_map
11047 .update(cx, |map, cx| map.snapshot(cx))
11048 .longest_row()
11049 }
11050
11051 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11052 self.display_map
11053 .update(cx, |map, cx| map.snapshot(cx))
11054 .max_point()
11055 }
11056
11057 pub fn text(&self, cx: &AppContext) -> String {
11058 self.buffer.read(cx).read(cx).text()
11059 }
11060
11061 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11062 let text = self.text(cx);
11063 let text = text.trim();
11064
11065 if text.is_empty() {
11066 return None;
11067 }
11068
11069 Some(text.to_string())
11070 }
11071
11072 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11073 self.transact(cx, |this, cx| {
11074 this.buffer
11075 .read(cx)
11076 .as_singleton()
11077 .expect("you can only call set_text on editors for singleton buffers")
11078 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11079 });
11080 }
11081
11082 pub fn display_text(&self, cx: &mut AppContext) -> String {
11083 self.display_map
11084 .update(cx, |map, cx| map.snapshot(cx))
11085 .text()
11086 }
11087
11088 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11089 let mut wrap_guides = smallvec::smallvec![];
11090
11091 if self.show_wrap_guides == Some(false) {
11092 return wrap_guides;
11093 }
11094
11095 let settings = self.buffer.read(cx).settings_at(0, cx);
11096 if settings.show_wrap_guides {
11097 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11098 wrap_guides.push((soft_wrap as usize, true));
11099 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11100 wrap_guides.push((soft_wrap as usize, true));
11101 }
11102 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11103 }
11104
11105 wrap_guides
11106 }
11107
11108 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11109 let settings = self.buffer.read(cx).settings_at(0, cx);
11110 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11111 match mode {
11112 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11113 SoftWrap::None
11114 }
11115 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11116 language_settings::SoftWrap::PreferredLineLength => {
11117 SoftWrap::Column(settings.preferred_line_length)
11118 }
11119 language_settings::SoftWrap::Bounded => {
11120 SoftWrap::Bounded(settings.preferred_line_length)
11121 }
11122 }
11123 }
11124
11125 pub fn set_soft_wrap_mode(
11126 &mut self,
11127 mode: language_settings::SoftWrap,
11128 cx: &mut ViewContext<Self>,
11129 ) {
11130 self.soft_wrap_mode_override = Some(mode);
11131 cx.notify();
11132 }
11133
11134 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11135 self.text_style_refinement = Some(style);
11136 }
11137
11138 /// called by the Element so we know what style we were most recently rendered with.
11139 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11140 let rem_size = cx.rem_size();
11141 self.display_map.update(cx, |map, cx| {
11142 map.set_font(
11143 style.text.font(),
11144 style.text.font_size.to_pixels(rem_size),
11145 cx,
11146 )
11147 });
11148 self.style = Some(style);
11149 }
11150
11151 pub fn style(&self) -> Option<&EditorStyle> {
11152 self.style.as_ref()
11153 }
11154
11155 // Called by the element. This method is not designed to be called outside of the editor
11156 // element's layout code because it does not notify when rewrapping is computed synchronously.
11157 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11158 self.display_map
11159 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11160 }
11161
11162 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11163 if self.soft_wrap_mode_override.is_some() {
11164 self.soft_wrap_mode_override.take();
11165 } else {
11166 let soft_wrap = match self.soft_wrap_mode(cx) {
11167 SoftWrap::GitDiff => return,
11168 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11169 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11170 language_settings::SoftWrap::None
11171 }
11172 };
11173 self.soft_wrap_mode_override = Some(soft_wrap);
11174 }
11175 cx.notify();
11176 }
11177
11178 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11179 let Some(workspace) = self.workspace() else {
11180 return;
11181 };
11182 let fs = workspace.read(cx).app_state().fs.clone();
11183 let current_show = TabBarSettings::get_global(cx).show;
11184 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11185 setting.show = Some(!current_show);
11186 });
11187 }
11188
11189 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11190 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11191 self.buffer
11192 .read(cx)
11193 .settings_at(0, cx)
11194 .indent_guides
11195 .enabled
11196 });
11197 self.show_indent_guides = Some(!currently_enabled);
11198 cx.notify();
11199 }
11200
11201 fn should_show_indent_guides(&self) -> Option<bool> {
11202 self.show_indent_guides
11203 }
11204
11205 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11206 let mut editor_settings = EditorSettings::get_global(cx).clone();
11207 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11208 EditorSettings::override_global(editor_settings, cx);
11209 }
11210
11211 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11212 self.use_relative_line_numbers
11213 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11214 }
11215
11216 pub fn toggle_relative_line_numbers(
11217 &mut self,
11218 _: &ToggleRelativeLineNumbers,
11219 cx: &mut ViewContext<Self>,
11220 ) {
11221 let is_relative = self.should_use_relative_line_numbers(cx);
11222 self.set_relative_line_number(Some(!is_relative), cx)
11223 }
11224
11225 pub fn set_relative_line_number(
11226 &mut self,
11227 is_relative: Option<bool>,
11228 cx: &mut ViewContext<Self>,
11229 ) {
11230 self.use_relative_line_numbers = is_relative;
11231 cx.notify();
11232 }
11233
11234 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11235 self.show_gutter = show_gutter;
11236 cx.notify();
11237 }
11238
11239 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11240 self.show_line_numbers = Some(show_line_numbers);
11241 cx.notify();
11242 }
11243
11244 pub fn set_show_git_diff_gutter(
11245 &mut self,
11246 show_git_diff_gutter: bool,
11247 cx: &mut ViewContext<Self>,
11248 ) {
11249 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11250 cx.notify();
11251 }
11252
11253 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11254 self.show_code_actions = Some(show_code_actions);
11255 cx.notify();
11256 }
11257
11258 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11259 self.show_runnables = Some(show_runnables);
11260 cx.notify();
11261 }
11262
11263 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11264 if self.display_map.read(cx).masked != masked {
11265 self.display_map.update(cx, |map, _| map.masked = masked);
11266 }
11267 cx.notify()
11268 }
11269
11270 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11271 self.show_wrap_guides = Some(show_wrap_guides);
11272 cx.notify();
11273 }
11274
11275 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11276 self.show_indent_guides = Some(show_indent_guides);
11277 cx.notify();
11278 }
11279
11280 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11281 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11282 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11283 if let Some(dir) = file.abs_path(cx).parent() {
11284 return Some(dir.to_owned());
11285 }
11286 }
11287
11288 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11289 return Some(project_path.path.to_path_buf());
11290 }
11291 }
11292
11293 None
11294 }
11295
11296 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11297 self.active_excerpt(cx)?
11298 .1
11299 .read(cx)
11300 .file()
11301 .and_then(|f| f.as_local())
11302 }
11303
11304 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11305 if let Some(target) = self.target_file(cx) {
11306 cx.reveal_path(&target.abs_path(cx));
11307 }
11308 }
11309
11310 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11311 if let Some(file) = self.target_file(cx) {
11312 if let Some(path) = file.abs_path(cx).to_str() {
11313 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11314 }
11315 }
11316 }
11317
11318 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11319 if let Some(file) = self.target_file(cx) {
11320 if let Some(path) = file.path().to_str() {
11321 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11322 }
11323 }
11324 }
11325
11326 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11327 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11328
11329 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11330 self.start_git_blame(true, cx);
11331 }
11332
11333 cx.notify();
11334 }
11335
11336 pub fn toggle_git_blame_inline(
11337 &mut self,
11338 _: &ToggleGitBlameInline,
11339 cx: &mut ViewContext<Self>,
11340 ) {
11341 self.toggle_git_blame_inline_internal(true, cx);
11342 cx.notify();
11343 }
11344
11345 pub fn git_blame_inline_enabled(&self) -> bool {
11346 self.git_blame_inline_enabled
11347 }
11348
11349 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11350 self.show_selection_menu = self
11351 .show_selection_menu
11352 .map(|show_selections_menu| !show_selections_menu)
11353 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11354
11355 cx.notify();
11356 }
11357
11358 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11359 self.show_selection_menu
11360 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11361 }
11362
11363 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11364 if let Some(project) = self.project.as_ref() {
11365 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11366 return;
11367 };
11368
11369 if buffer.read(cx).file().is_none() {
11370 return;
11371 }
11372
11373 let focused = self.focus_handle(cx).contains_focused(cx);
11374
11375 let project = project.clone();
11376 let blame =
11377 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11378 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11379 self.blame = Some(blame);
11380 }
11381 }
11382
11383 fn toggle_git_blame_inline_internal(
11384 &mut self,
11385 user_triggered: bool,
11386 cx: &mut ViewContext<Self>,
11387 ) {
11388 if self.git_blame_inline_enabled {
11389 self.git_blame_inline_enabled = false;
11390 self.show_git_blame_inline = false;
11391 self.show_git_blame_inline_delay_task.take();
11392 } else {
11393 self.git_blame_inline_enabled = true;
11394 self.start_git_blame_inline(user_triggered, cx);
11395 }
11396
11397 cx.notify();
11398 }
11399
11400 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11401 self.start_git_blame(user_triggered, cx);
11402
11403 if ProjectSettings::get_global(cx)
11404 .git
11405 .inline_blame_delay()
11406 .is_some()
11407 {
11408 self.start_inline_blame_timer(cx);
11409 } else {
11410 self.show_git_blame_inline = true
11411 }
11412 }
11413
11414 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11415 self.blame.as_ref()
11416 }
11417
11418 pub fn show_git_blame_gutter(&self) -> bool {
11419 self.show_git_blame_gutter
11420 }
11421
11422 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11423 self.show_git_blame_gutter && self.has_blame_entries(cx)
11424 }
11425
11426 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11427 self.show_git_blame_inline
11428 && self.focus_handle.is_focused(cx)
11429 && !self.newest_selection_head_on_empty_line(cx)
11430 && self.has_blame_entries(cx)
11431 }
11432
11433 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11434 self.blame()
11435 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11436 }
11437
11438 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11439 let cursor_anchor = self.selections.newest_anchor().head();
11440
11441 let snapshot = self.buffer.read(cx).snapshot(cx);
11442 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11443
11444 snapshot.line_len(buffer_row) == 0
11445 }
11446
11447 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11448 let buffer_and_selection = maybe!({
11449 let selection = self.selections.newest::<Point>(cx);
11450 let selection_range = selection.range();
11451
11452 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11453 (buffer, selection_range.start.row..selection_range.end.row)
11454 } else {
11455 let buffer_ranges = self
11456 .buffer()
11457 .read(cx)
11458 .range_to_buffer_ranges(selection_range, cx);
11459
11460 let (buffer, range, _) = if selection.reversed {
11461 buffer_ranges.first()
11462 } else {
11463 buffer_ranges.last()
11464 }?;
11465
11466 let snapshot = buffer.read(cx).snapshot();
11467 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11468 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11469 (buffer.clone(), selection)
11470 };
11471
11472 Some((buffer, selection))
11473 });
11474
11475 let Some((buffer, selection)) = buffer_and_selection else {
11476 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11477 };
11478
11479 let Some(project) = self.project.as_ref() else {
11480 return Task::ready(Err(anyhow!("editor does not have project")));
11481 };
11482
11483 project.update(cx, |project, cx| {
11484 project.get_permalink_to_line(&buffer, selection, cx)
11485 })
11486 }
11487
11488 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11489 let permalink_task = self.get_permalink_to_line(cx);
11490 let workspace = self.workspace();
11491
11492 cx.spawn(|_, mut cx| async move {
11493 match permalink_task.await {
11494 Ok(permalink) => {
11495 cx.update(|cx| {
11496 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11497 })
11498 .ok();
11499 }
11500 Err(err) => {
11501 let message = format!("Failed to copy permalink: {err}");
11502
11503 Err::<(), anyhow::Error>(err).log_err();
11504
11505 if let Some(workspace) = workspace {
11506 workspace
11507 .update(&mut cx, |workspace, cx| {
11508 struct CopyPermalinkToLine;
11509
11510 workspace.show_toast(
11511 Toast::new(
11512 NotificationId::unique::<CopyPermalinkToLine>(),
11513 message,
11514 ),
11515 cx,
11516 )
11517 })
11518 .ok();
11519 }
11520 }
11521 }
11522 })
11523 .detach();
11524 }
11525
11526 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11527 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11528 if let Some(file) = self.target_file(cx) {
11529 if let Some(path) = file.path().to_str() {
11530 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11531 }
11532 }
11533 }
11534
11535 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11536 let permalink_task = self.get_permalink_to_line(cx);
11537 let workspace = self.workspace();
11538
11539 cx.spawn(|_, mut cx| async move {
11540 match permalink_task.await {
11541 Ok(permalink) => {
11542 cx.update(|cx| {
11543 cx.open_url(permalink.as_ref());
11544 })
11545 .ok();
11546 }
11547 Err(err) => {
11548 let message = format!("Failed to open permalink: {err}");
11549
11550 Err::<(), anyhow::Error>(err).log_err();
11551
11552 if let Some(workspace) = workspace {
11553 workspace
11554 .update(&mut cx, |workspace, cx| {
11555 struct OpenPermalinkToLine;
11556
11557 workspace.show_toast(
11558 Toast::new(
11559 NotificationId::unique::<OpenPermalinkToLine>(),
11560 message,
11561 ),
11562 cx,
11563 )
11564 })
11565 .ok();
11566 }
11567 }
11568 }
11569 })
11570 .detach();
11571 }
11572
11573 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11574 self.insert_uuid(UuidVersion::V4, cx);
11575 }
11576
11577 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11578 self.insert_uuid(UuidVersion::V7, cx);
11579 }
11580
11581 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11582 self.transact(cx, |this, cx| {
11583 let edits = this
11584 .selections
11585 .all::<Point>(cx)
11586 .into_iter()
11587 .map(|selection| {
11588 let uuid = match version {
11589 UuidVersion::V4 => uuid::Uuid::new_v4(),
11590 UuidVersion::V7 => uuid::Uuid::now_v7(),
11591 };
11592
11593 (selection.range(), uuid.to_string())
11594 });
11595 this.edit(edits, cx);
11596 this.refresh_inline_completion(true, false, cx);
11597 });
11598 }
11599
11600 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11601 /// last highlight added will be used.
11602 ///
11603 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11604 pub fn highlight_rows<T: 'static>(
11605 &mut self,
11606 range: Range<Anchor>,
11607 color: Hsla,
11608 should_autoscroll: bool,
11609 cx: &mut ViewContext<Self>,
11610 ) {
11611 let snapshot = self.buffer().read(cx).snapshot(cx);
11612 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11613 let ix = row_highlights.binary_search_by(|highlight| {
11614 Ordering::Equal
11615 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11616 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11617 });
11618
11619 if let Err(mut ix) = ix {
11620 let index = post_inc(&mut self.highlight_order);
11621
11622 // If this range intersects with the preceding highlight, then merge it with
11623 // the preceding highlight. Otherwise insert a new highlight.
11624 let mut merged = false;
11625 if ix > 0 {
11626 let prev_highlight = &mut row_highlights[ix - 1];
11627 if prev_highlight
11628 .range
11629 .end
11630 .cmp(&range.start, &snapshot)
11631 .is_ge()
11632 {
11633 ix -= 1;
11634 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11635 prev_highlight.range.end = range.end;
11636 }
11637 merged = true;
11638 prev_highlight.index = index;
11639 prev_highlight.color = color;
11640 prev_highlight.should_autoscroll = should_autoscroll;
11641 }
11642 }
11643
11644 if !merged {
11645 row_highlights.insert(
11646 ix,
11647 RowHighlight {
11648 range: range.clone(),
11649 index,
11650 color,
11651 should_autoscroll,
11652 },
11653 );
11654 }
11655
11656 // If any of the following highlights intersect with this one, merge them.
11657 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11658 let highlight = &row_highlights[ix];
11659 if next_highlight
11660 .range
11661 .start
11662 .cmp(&highlight.range.end, &snapshot)
11663 .is_le()
11664 {
11665 if next_highlight
11666 .range
11667 .end
11668 .cmp(&highlight.range.end, &snapshot)
11669 .is_gt()
11670 {
11671 row_highlights[ix].range.end = next_highlight.range.end;
11672 }
11673 row_highlights.remove(ix + 1);
11674 } else {
11675 break;
11676 }
11677 }
11678 }
11679 }
11680
11681 /// Remove any highlighted row ranges of the given type that intersect the
11682 /// given ranges.
11683 pub fn remove_highlighted_rows<T: 'static>(
11684 &mut self,
11685 ranges_to_remove: Vec<Range<Anchor>>,
11686 cx: &mut ViewContext<Self>,
11687 ) {
11688 let snapshot = self.buffer().read(cx).snapshot(cx);
11689 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11690 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11691 row_highlights.retain(|highlight| {
11692 while let Some(range_to_remove) = ranges_to_remove.peek() {
11693 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11694 Ordering::Less | Ordering::Equal => {
11695 ranges_to_remove.next();
11696 }
11697 Ordering::Greater => {
11698 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11699 Ordering::Less | Ordering::Equal => {
11700 return false;
11701 }
11702 Ordering::Greater => break,
11703 }
11704 }
11705 }
11706 }
11707
11708 true
11709 })
11710 }
11711
11712 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11713 pub fn clear_row_highlights<T: 'static>(&mut self) {
11714 self.highlighted_rows.remove(&TypeId::of::<T>());
11715 }
11716
11717 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11718 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11719 self.highlighted_rows
11720 .get(&TypeId::of::<T>())
11721 .map_or(&[] as &[_], |vec| vec.as_slice())
11722 .iter()
11723 .map(|highlight| (highlight.range.clone(), highlight.color))
11724 }
11725
11726 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11727 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11728 /// Allows to ignore certain kinds of highlights.
11729 pub fn highlighted_display_rows(
11730 &mut self,
11731 cx: &mut WindowContext,
11732 ) -> BTreeMap<DisplayRow, Hsla> {
11733 let snapshot = self.snapshot(cx);
11734 let mut used_highlight_orders = HashMap::default();
11735 self.highlighted_rows
11736 .iter()
11737 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11738 .fold(
11739 BTreeMap::<DisplayRow, Hsla>::new(),
11740 |mut unique_rows, highlight| {
11741 let start = highlight.range.start.to_display_point(&snapshot);
11742 let end = highlight.range.end.to_display_point(&snapshot);
11743 let start_row = start.row().0;
11744 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11745 && end.column() == 0
11746 {
11747 end.row().0.saturating_sub(1)
11748 } else {
11749 end.row().0
11750 };
11751 for row in start_row..=end_row {
11752 let used_index =
11753 used_highlight_orders.entry(row).or_insert(highlight.index);
11754 if highlight.index >= *used_index {
11755 *used_index = highlight.index;
11756 unique_rows.insert(DisplayRow(row), highlight.color);
11757 }
11758 }
11759 unique_rows
11760 },
11761 )
11762 }
11763
11764 pub fn highlighted_display_row_for_autoscroll(
11765 &self,
11766 snapshot: &DisplaySnapshot,
11767 ) -> Option<DisplayRow> {
11768 self.highlighted_rows
11769 .values()
11770 .flat_map(|highlighted_rows| highlighted_rows.iter())
11771 .filter_map(|highlight| {
11772 if highlight.should_autoscroll {
11773 Some(highlight.range.start.to_display_point(snapshot).row())
11774 } else {
11775 None
11776 }
11777 })
11778 .min()
11779 }
11780
11781 pub fn set_search_within_ranges(
11782 &mut self,
11783 ranges: &[Range<Anchor>],
11784 cx: &mut ViewContext<Self>,
11785 ) {
11786 self.highlight_background::<SearchWithinRange>(
11787 ranges,
11788 |colors| colors.editor_document_highlight_read_background,
11789 cx,
11790 )
11791 }
11792
11793 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11794 self.breadcrumb_header = Some(new_header);
11795 }
11796
11797 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11798 self.clear_background_highlights::<SearchWithinRange>(cx);
11799 }
11800
11801 pub fn highlight_background<T: 'static>(
11802 &mut self,
11803 ranges: &[Range<Anchor>],
11804 color_fetcher: fn(&ThemeColors) -> Hsla,
11805 cx: &mut ViewContext<Self>,
11806 ) {
11807 self.background_highlights
11808 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11809 self.scrollbar_marker_state.dirty = true;
11810 cx.notify();
11811 }
11812
11813 pub fn clear_background_highlights<T: 'static>(
11814 &mut self,
11815 cx: &mut ViewContext<Self>,
11816 ) -> Option<BackgroundHighlight> {
11817 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11818 if !text_highlights.1.is_empty() {
11819 self.scrollbar_marker_state.dirty = true;
11820 cx.notify();
11821 }
11822 Some(text_highlights)
11823 }
11824
11825 pub fn highlight_gutter<T: 'static>(
11826 &mut self,
11827 ranges: &[Range<Anchor>],
11828 color_fetcher: fn(&AppContext) -> Hsla,
11829 cx: &mut ViewContext<Self>,
11830 ) {
11831 self.gutter_highlights
11832 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11833 cx.notify();
11834 }
11835
11836 pub fn clear_gutter_highlights<T: 'static>(
11837 &mut self,
11838 cx: &mut ViewContext<Self>,
11839 ) -> Option<GutterHighlight> {
11840 cx.notify();
11841 self.gutter_highlights.remove(&TypeId::of::<T>())
11842 }
11843
11844 #[cfg(feature = "test-support")]
11845 pub fn all_text_background_highlights(
11846 &mut self,
11847 cx: &mut ViewContext<Self>,
11848 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11849 let snapshot = self.snapshot(cx);
11850 let buffer = &snapshot.buffer_snapshot;
11851 let start = buffer.anchor_before(0);
11852 let end = buffer.anchor_after(buffer.len());
11853 let theme = cx.theme().colors();
11854 self.background_highlights_in_range(start..end, &snapshot, theme)
11855 }
11856
11857 #[cfg(feature = "test-support")]
11858 pub fn search_background_highlights(
11859 &mut self,
11860 cx: &mut ViewContext<Self>,
11861 ) -> Vec<Range<Point>> {
11862 let snapshot = self.buffer().read(cx).snapshot(cx);
11863
11864 let highlights = self
11865 .background_highlights
11866 .get(&TypeId::of::<items::BufferSearchHighlights>());
11867
11868 if let Some((_color, ranges)) = highlights {
11869 ranges
11870 .iter()
11871 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11872 .collect_vec()
11873 } else {
11874 vec![]
11875 }
11876 }
11877
11878 fn document_highlights_for_position<'a>(
11879 &'a self,
11880 position: Anchor,
11881 buffer: &'a MultiBufferSnapshot,
11882 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11883 let read_highlights = self
11884 .background_highlights
11885 .get(&TypeId::of::<DocumentHighlightRead>())
11886 .map(|h| &h.1);
11887 let write_highlights = self
11888 .background_highlights
11889 .get(&TypeId::of::<DocumentHighlightWrite>())
11890 .map(|h| &h.1);
11891 let left_position = position.bias_left(buffer);
11892 let right_position = position.bias_right(buffer);
11893 read_highlights
11894 .into_iter()
11895 .chain(write_highlights)
11896 .flat_map(move |ranges| {
11897 let start_ix = match ranges.binary_search_by(|probe| {
11898 let cmp = probe.end.cmp(&left_position, buffer);
11899 if cmp.is_ge() {
11900 Ordering::Greater
11901 } else {
11902 Ordering::Less
11903 }
11904 }) {
11905 Ok(i) | Err(i) => i,
11906 };
11907
11908 ranges[start_ix..]
11909 .iter()
11910 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11911 })
11912 }
11913
11914 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11915 self.background_highlights
11916 .get(&TypeId::of::<T>())
11917 .map_or(false, |(_, highlights)| !highlights.is_empty())
11918 }
11919
11920 pub fn background_highlights_in_range(
11921 &self,
11922 search_range: Range<Anchor>,
11923 display_snapshot: &DisplaySnapshot,
11924 theme: &ThemeColors,
11925 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11926 let mut results = Vec::new();
11927 for (color_fetcher, ranges) in self.background_highlights.values() {
11928 let color = color_fetcher(theme);
11929 let start_ix = match ranges.binary_search_by(|probe| {
11930 let cmp = probe
11931 .end
11932 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11933 if cmp.is_gt() {
11934 Ordering::Greater
11935 } else {
11936 Ordering::Less
11937 }
11938 }) {
11939 Ok(i) | Err(i) => i,
11940 };
11941 for range in &ranges[start_ix..] {
11942 if range
11943 .start
11944 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11945 .is_ge()
11946 {
11947 break;
11948 }
11949
11950 let start = range.start.to_display_point(display_snapshot);
11951 let end = range.end.to_display_point(display_snapshot);
11952 results.push((start..end, color))
11953 }
11954 }
11955 results
11956 }
11957
11958 pub fn background_highlight_row_ranges<T: 'static>(
11959 &self,
11960 search_range: Range<Anchor>,
11961 display_snapshot: &DisplaySnapshot,
11962 count: usize,
11963 ) -> Vec<RangeInclusive<DisplayPoint>> {
11964 let mut results = Vec::new();
11965 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11966 return vec![];
11967 };
11968
11969 let start_ix = match ranges.binary_search_by(|probe| {
11970 let cmp = probe
11971 .end
11972 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11973 if cmp.is_gt() {
11974 Ordering::Greater
11975 } else {
11976 Ordering::Less
11977 }
11978 }) {
11979 Ok(i) | Err(i) => i,
11980 };
11981 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11982 if let (Some(start_display), Some(end_display)) = (start, end) {
11983 results.push(
11984 start_display.to_display_point(display_snapshot)
11985 ..=end_display.to_display_point(display_snapshot),
11986 );
11987 }
11988 };
11989 let mut start_row: Option<Point> = None;
11990 let mut end_row: Option<Point> = None;
11991 if ranges.len() > count {
11992 return Vec::new();
11993 }
11994 for range in &ranges[start_ix..] {
11995 if range
11996 .start
11997 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11998 .is_ge()
11999 {
12000 break;
12001 }
12002 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12003 if let Some(current_row) = &end_row {
12004 if end.row == current_row.row {
12005 continue;
12006 }
12007 }
12008 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12009 if start_row.is_none() {
12010 assert_eq!(end_row, None);
12011 start_row = Some(start);
12012 end_row = Some(end);
12013 continue;
12014 }
12015 if let Some(current_end) = end_row.as_mut() {
12016 if start.row > current_end.row + 1 {
12017 push_region(start_row, end_row);
12018 start_row = Some(start);
12019 end_row = Some(end);
12020 } else {
12021 // Merge two hunks.
12022 *current_end = end;
12023 }
12024 } else {
12025 unreachable!();
12026 }
12027 }
12028 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12029 push_region(start_row, end_row);
12030 results
12031 }
12032
12033 pub fn gutter_highlights_in_range(
12034 &self,
12035 search_range: Range<Anchor>,
12036 display_snapshot: &DisplaySnapshot,
12037 cx: &AppContext,
12038 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12039 let mut results = Vec::new();
12040 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12041 let color = color_fetcher(cx);
12042 let start_ix = match ranges.binary_search_by(|probe| {
12043 let cmp = probe
12044 .end
12045 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12046 if cmp.is_gt() {
12047 Ordering::Greater
12048 } else {
12049 Ordering::Less
12050 }
12051 }) {
12052 Ok(i) | Err(i) => i,
12053 };
12054 for range in &ranges[start_ix..] {
12055 if range
12056 .start
12057 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12058 .is_ge()
12059 {
12060 break;
12061 }
12062
12063 let start = range.start.to_display_point(display_snapshot);
12064 let end = range.end.to_display_point(display_snapshot);
12065 results.push((start..end, color))
12066 }
12067 }
12068 results
12069 }
12070
12071 /// Get the text ranges corresponding to the redaction query
12072 pub fn redacted_ranges(
12073 &self,
12074 search_range: Range<Anchor>,
12075 display_snapshot: &DisplaySnapshot,
12076 cx: &WindowContext,
12077 ) -> Vec<Range<DisplayPoint>> {
12078 display_snapshot
12079 .buffer_snapshot
12080 .redacted_ranges(search_range, |file| {
12081 if let Some(file) = file {
12082 file.is_private()
12083 && EditorSettings::get(
12084 Some(SettingsLocation {
12085 worktree_id: file.worktree_id(cx),
12086 path: file.path().as_ref(),
12087 }),
12088 cx,
12089 )
12090 .redact_private_values
12091 } else {
12092 false
12093 }
12094 })
12095 .map(|range| {
12096 range.start.to_display_point(display_snapshot)
12097 ..range.end.to_display_point(display_snapshot)
12098 })
12099 .collect()
12100 }
12101
12102 pub fn highlight_text<T: 'static>(
12103 &mut self,
12104 ranges: Vec<Range<Anchor>>,
12105 style: HighlightStyle,
12106 cx: &mut ViewContext<Self>,
12107 ) {
12108 self.display_map.update(cx, |map, _| {
12109 map.highlight_text(TypeId::of::<T>(), ranges, style)
12110 });
12111 cx.notify();
12112 }
12113
12114 pub(crate) fn highlight_inlays<T: 'static>(
12115 &mut self,
12116 highlights: Vec<InlayHighlight>,
12117 style: HighlightStyle,
12118 cx: &mut ViewContext<Self>,
12119 ) {
12120 self.display_map.update(cx, |map, _| {
12121 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12122 });
12123 cx.notify();
12124 }
12125
12126 pub fn text_highlights<'a, T: 'static>(
12127 &'a self,
12128 cx: &'a AppContext,
12129 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12130 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12131 }
12132
12133 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12134 let cleared = self
12135 .display_map
12136 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12137 if cleared {
12138 cx.notify();
12139 }
12140 }
12141
12142 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12143 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12144 && self.focus_handle.is_focused(cx)
12145 }
12146
12147 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12148 self.show_cursor_when_unfocused = is_enabled;
12149 cx.notify();
12150 }
12151
12152 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12153 self.project
12154 .as_ref()
12155 .map(|project| project.read(cx).lsp_store())
12156 }
12157
12158 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12159 cx.notify();
12160 }
12161
12162 fn on_buffer_event(
12163 &mut self,
12164 multibuffer: Model<MultiBuffer>,
12165 event: &multi_buffer::Event,
12166 cx: &mut ViewContext<Self>,
12167 ) {
12168 match event {
12169 multi_buffer::Event::Edited {
12170 singleton_buffer_edited,
12171 edited_buffer: buffer_edited,
12172 } => {
12173 self.scrollbar_marker_state.dirty = true;
12174 self.active_indent_guides_state.dirty = true;
12175 self.refresh_active_diagnostics(cx);
12176 self.refresh_code_actions(cx);
12177 if self.has_active_inline_completion() {
12178 self.update_visible_inline_completion(cx);
12179 }
12180 if let Some(buffer) = buffer_edited {
12181 let buffer_id = buffer.read(cx).remote_id();
12182 if !self.registered_buffers.contains_key(&buffer_id) {
12183 if let Some(lsp_store) = self.lsp_store(cx) {
12184 lsp_store.update(cx, |lsp_store, cx| {
12185 self.registered_buffers.insert(
12186 buffer_id,
12187 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12188 );
12189 })
12190 }
12191 }
12192 }
12193 cx.emit(EditorEvent::BufferEdited);
12194 cx.emit(SearchEvent::MatchesInvalidated);
12195 if *singleton_buffer_edited {
12196 if let Some(project) = &self.project {
12197 let project = project.read(cx);
12198 #[allow(clippy::mutable_key_type)]
12199 let languages_affected = multibuffer
12200 .read(cx)
12201 .all_buffers()
12202 .into_iter()
12203 .filter_map(|buffer| {
12204 let buffer = buffer.read(cx);
12205 let language = buffer.language()?;
12206 if project.is_local()
12207 && project
12208 .language_servers_for_local_buffer(buffer, cx)
12209 .count()
12210 == 0
12211 {
12212 None
12213 } else {
12214 Some(language)
12215 }
12216 })
12217 .cloned()
12218 .collect::<HashSet<_>>();
12219 if !languages_affected.is_empty() {
12220 self.refresh_inlay_hints(
12221 InlayHintRefreshReason::BufferEdited(languages_affected),
12222 cx,
12223 );
12224 }
12225 }
12226 }
12227
12228 let Some(project) = &self.project else { return };
12229 let (telemetry, is_via_ssh) = {
12230 let project = project.read(cx);
12231 let telemetry = project.client().telemetry().clone();
12232 let is_via_ssh = project.is_via_ssh();
12233 (telemetry, is_via_ssh)
12234 };
12235 refresh_linked_ranges(self, cx);
12236 telemetry.log_edit_event("editor", is_via_ssh);
12237 }
12238 multi_buffer::Event::ExcerptsAdded {
12239 buffer,
12240 predecessor,
12241 excerpts,
12242 } => {
12243 self.tasks_update_task = Some(self.refresh_runnables(cx));
12244 let buffer_id = buffer.read(cx).remote_id();
12245 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12246 if let Some(project) = &self.project {
12247 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12248 }
12249 }
12250 cx.emit(EditorEvent::ExcerptsAdded {
12251 buffer: buffer.clone(),
12252 predecessor: *predecessor,
12253 excerpts: excerpts.clone(),
12254 });
12255 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12256 }
12257 multi_buffer::Event::ExcerptsRemoved { ids } => {
12258 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12259 let buffer = self.buffer.read(cx);
12260 self.registered_buffers
12261 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12262 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12263 }
12264 multi_buffer::Event::ExcerptsEdited { ids } => {
12265 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12266 }
12267 multi_buffer::Event::ExcerptsExpanded { ids } => {
12268 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12269 }
12270 multi_buffer::Event::Reparsed(buffer_id) => {
12271 self.tasks_update_task = Some(self.refresh_runnables(cx));
12272
12273 cx.emit(EditorEvent::Reparsed(*buffer_id));
12274 }
12275 multi_buffer::Event::LanguageChanged(buffer_id) => {
12276 linked_editing_ranges::refresh_linked_ranges(self, cx);
12277 cx.emit(EditorEvent::Reparsed(*buffer_id));
12278 cx.notify();
12279 }
12280 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12281 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12282 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12283 cx.emit(EditorEvent::TitleChanged)
12284 }
12285 // multi_buffer::Event::DiffBaseChanged => {
12286 // self.scrollbar_marker_state.dirty = true;
12287 // cx.emit(EditorEvent::DiffBaseChanged);
12288 // cx.notify();
12289 // }
12290 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12291 multi_buffer::Event::DiagnosticsUpdated => {
12292 self.refresh_active_diagnostics(cx);
12293 self.scrollbar_marker_state.dirty = true;
12294 cx.notify();
12295 }
12296 _ => {}
12297 };
12298 }
12299
12300 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12301 cx.notify();
12302 }
12303
12304 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12305 self.tasks_update_task = Some(self.refresh_runnables(cx));
12306 self.refresh_inline_completion(true, false, cx);
12307 self.refresh_inlay_hints(
12308 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12309 self.selections.newest_anchor().head(),
12310 &self.buffer.read(cx).snapshot(cx),
12311 cx,
12312 )),
12313 cx,
12314 );
12315
12316 let old_cursor_shape = self.cursor_shape;
12317
12318 {
12319 let editor_settings = EditorSettings::get_global(cx);
12320 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12321 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12322 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12323 }
12324
12325 if old_cursor_shape != self.cursor_shape {
12326 cx.emit(EditorEvent::CursorShapeChanged);
12327 }
12328
12329 let project_settings = ProjectSettings::get_global(cx);
12330 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12331
12332 if self.mode == EditorMode::Full {
12333 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12334 if self.git_blame_inline_enabled != inline_blame_enabled {
12335 self.toggle_git_blame_inline_internal(false, cx);
12336 }
12337 }
12338
12339 cx.notify();
12340 }
12341
12342 pub fn set_searchable(&mut self, searchable: bool) {
12343 self.searchable = searchable;
12344 }
12345
12346 pub fn searchable(&self) -> bool {
12347 self.searchable
12348 }
12349
12350 fn open_proposed_changes_editor(
12351 &mut self,
12352 _: &OpenProposedChangesEditor,
12353 cx: &mut ViewContext<Self>,
12354 ) {
12355 let Some(workspace) = self.workspace() else {
12356 cx.propagate();
12357 return;
12358 };
12359
12360 let selections = self.selections.all::<usize>(cx);
12361 let buffer = self.buffer.read(cx);
12362 let mut new_selections_by_buffer = HashMap::default();
12363 for selection in selections {
12364 for (buffer, range, _) in
12365 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12366 {
12367 let mut range = range.to_point(buffer.read(cx));
12368 range.start.column = 0;
12369 range.end.column = buffer.read(cx).line_len(range.end.row);
12370 new_selections_by_buffer
12371 .entry(buffer)
12372 .or_insert(Vec::new())
12373 .push(range)
12374 }
12375 }
12376
12377 let proposed_changes_buffers = new_selections_by_buffer
12378 .into_iter()
12379 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12380 .collect::<Vec<_>>();
12381 let proposed_changes_editor = cx.new_view(|cx| {
12382 ProposedChangesEditor::new(
12383 "Proposed changes",
12384 proposed_changes_buffers,
12385 self.project.clone(),
12386 cx,
12387 )
12388 });
12389
12390 cx.window_context().defer(move |cx| {
12391 workspace.update(cx, |workspace, cx| {
12392 workspace.active_pane().update(cx, |pane, cx| {
12393 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12394 });
12395 });
12396 });
12397 }
12398
12399 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12400 self.open_excerpts_common(None, true, cx)
12401 }
12402
12403 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12404 self.open_excerpts_common(None, false, cx)
12405 }
12406
12407 fn open_excerpts_common(
12408 &mut self,
12409 jump_data: Option<JumpData>,
12410 split: bool,
12411 cx: &mut ViewContext<Self>,
12412 ) {
12413 let Some(workspace) = self.workspace() else {
12414 cx.propagate();
12415 return;
12416 };
12417
12418 if self.buffer.read(cx).is_singleton() {
12419 cx.propagate();
12420 return;
12421 }
12422
12423 let mut new_selections_by_buffer = HashMap::default();
12424 match &jump_data {
12425 Some(jump_data) => {
12426 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12427 if let Some(buffer) = multi_buffer_snapshot
12428 .buffer_id_for_excerpt(jump_data.excerpt_id)
12429 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12430 {
12431 let buffer_snapshot = buffer.read(cx).snapshot();
12432 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12433 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12434 } else {
12435 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12436 };
12437 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12438 new_selections_by_buffer.insert(
12439 buffer,
12440 (
12441 vec![jump_to_offset..jump_to_offset],
12442 Some(jump_data.line_offset_from_top),
12443 ),
12444 );
12445 }
12446 }
12447 None => {
12448 let selections = self.selections.all::<usize>(cx);
12449 let buffer = self.buffer.read(cx);
12450 for selection in selections {
12451 for (mut buffer_handle, mut range, _) in
12452 buffer.range_to_buffer_ranges(selection.range(), cx)
12453 {
12454 // When editing branch buffers, jump to the corresponding location
12455 // in their base buffer.
12456 let buffer = buffer_handle.read(cx);
12457 if let Some(base_buffer) = buffer.base_buffer() {
12458 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12459 buffer_handle = base_buffer;
12460 }
12461
12462 if selection.reversed {
12463 mem::swap(&mut range.start, &mut range.end);
12464 }
12465 new_selections_by_buffer
12466 .entry(buffer_handle)
12467 .or_insert((Vec::new(), None))
12468 .0
12469 .push(range)
12470 }
12471 }
12472 }
12473 }
12474
12475 if new_selections_by_buffer.is_empty() {
12476 return;
12477 }
12478
12479 // We defer the pane interaction because we ourselves are a workspace item
12480 // and activating a new item causes the pane to call a method on us reentrantly,
12481 // which panics if we're on the stack.
12482 cx.window_context().defer(move |cx| {
12483 workspace.update(cx, |workspace, cx| {
12484 let pane = if split {
12485 workspace.adjacent_pane(cx)
12486 } else {
12487 workspace.active_pane().clone()
12488 };
12489
12490 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12491 let editor = buffer
12492 .read(cx)
12493 .file()
12494 .is_none()
12495 .then(|| {
12496 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12497 // so `workspace.open_project_item` will never find them, always opening a new editor.
12498 // Instead, we try to activate the existing editor in the pane first.
12499 let (editor, pane_item_index) =
12500 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12501 let editor = item.downcast::<Editor>()?;
12502 let singleton_buffer =
12503 editor.read(cx).buffer().read(cx).as_singleton()?;
12504 if singleton_buffer == buffer {
12505 Some((editor, i))
12506 } else {
12507 None
12508 }
12509 })?;
12510 pane.update(cx, |pane, cx| {
12511 pane.activate_item(pane_item_index, true, true, cx)
12512 });
12513 Some(editor)
12514 })
12515 .flatten()
12516 .unwrap_or_else(|| {
12517 workspace.open_project_item::<Self>(
12518 pane.clone(),
12519 buffer,
12520 true,
12521 true,
12522 cx,
12523 )
12524 });
12525
12526 editor.update(cx, |editor, cx| {
12527 let autoscroll = match scroll_offset {
12528 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12529 None => Autoscroll::newest(),
12530 };
12531 let nav_history = editor.nav_history.take();
12532 editor.change_selections(Some(autoscroll), cx, |s| {
12533 s.select_ranges(ranges);
12534 });
12535 editor.nav_history = nav_history;
12536 });
12537 }
12538 })
12539 });
12540 }
12541
12542 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12543 let snapshot = self.buffer.read(cx).read(cx);
12544 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12545 Some(
12546 ranges
12547 .iter()
12548 .map(move |range| {
12549 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12550 })
12551 .collect(),
12552 )
12553 }
12554
12555 fn selection_replacement_ranges(
12556 &self,
12557 range: Range<OffsetUtf16>,
12558 cx: &mut AppContext,
12559 ) -> Vec<Range<OffsetUtf16>> {
12560 let selections = self.selections.all::<OffsetUtf16>(cx);
12561 let newest_selection = selections
12562 .iter()
12563 .max_by_key(|selection| selection.id)
12564 .unwrap();
12565 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12566 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12567 let snapshot = self.buffer.read(cx).read(cx);
12568 selections
12569 .into_iter()
12570 .map(|mut selection| {
12571 selection.start.0 =
12572 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12573 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12574 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12575 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12576 })
12577 .collect()
12578 }
12579
12580 fn report_editor_event(
12581 &self,
12582 event_type: &'static str,
12583 file_extension: Option<String>,
12584 cx: &AppContext,
12585 ) {
12586 if cfg!(any(test, feature = "test-support")) {
12587 return;
12588 }
12589
12590 let Some(project) = &self.project else { return };
12591
12592 // If None, we are in a file without an extension
12593 let file = self
12594 .buffer
12595 .read(cx)
12596 .as_singleton()
12597 .and_then(|b| b.read(cx).file());
12598 let file_extension = file_extension.or(file
12599 .as_ref()
12600 .and_then(|file| Path::new(file.file_name(cx)).extension())
12601 .and_then(|e| e.to_str())
12602 .map(|a| a.to_string()));
12603
12604 let vim_mode = cx
12605 .global::<SettingsStore>()
12606 .raw_user_settings()
12607 .get("vim_mode")
12608 == Some(&serde_json::Value::Bool(true));
12609
12610 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12611 == language::language_settings::InlineCompletionProvider::Copilot;
12612 let copilot_enabled_for_language = self
12613 .buffer
12614 .read(cx)
12615 .settings_at(0, cx)
12616 .show_inline_completions;
12617
12618 let project = project.read(cx);
12619 telemetry::event!(
12620 event_type,
12621 file_extension,
12622 vim_mode,
12623 copilot_enabled,
12624 copilot_enabled_for_language,
12625 is_via_ssh = project.is_via_ssh(),
12626 );
12627 }
12628
12629 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12630 /// with each line being an array of {text, highlight} objects.
12631 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12632 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12633 return;
12634 };
12635
12636 #[derive(Serialize)]
12637 struct Chunk<'a> {
12638 text: String,
12639 highlight: Option<&'a str>,
12640 }
12641
12642 let snapshot = buffer.read(cx).snapshot();
12643 let range = self
12644 .selected_text_range(false, cx)
12645 .and_then(|selection| {
12646 if selection.range.is_empty() {
12647 None
12648 } else {
12649 Some(selection.range)
12650 }
12651 })
12652 .unwrap_or_else(|| 0..snapshot.len());
12653
12654 let chunks = snapshot.chunks(range, true);
12655 let mut lines = Vec::new();
12656 let mut line: VecDeque<Chunk> = VecDeque::new();
12657
12658 let Some(style) = self.style.as_ref() else {
12659 return;
12660 };
12661
12662 for chunk in chunks {
12663 let highlight = chunk
12664 .syntax_highlight_id
12665 .and_then(|id| id.name(&style.syntax));
12666 let mut chunk_lines = chunk.text.split('\n').peekable();
12667 while let Some(text) = chunk_lines.next() {
12668 let mut merged_with_last_token = false;
12669 if let Some(last_token) = line.back_mut() {
12670 if last_token.highlight == highlight {
12671 last_token.text.push_str(text);
12672 merged_with_last_token = true;
12673 }
12674 }
12675
12676 if !merged_with_last_token {
12677 line.push_back(Chunk {
12678 text: text.into(),
12679 highlight,
12680 });
12681 }
12682
12683 if chunk_lines.peek().is_some() {
12684 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12685 line.pop_front();
12686 }
12687 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12688 line.pop_back();
12689 }
12690
12691 lines.push(mem::take(&mut line));
12692 }
12693 }
12694 }
12695
12696 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12697 return;
12698 };
12699 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12700 }
12701
12702 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12703 self.request_autoscroll(Autoscroll::newest(), cx);
12704 let position = self.selections.newest_display(cx).start;
12705 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12706 }
12707
12708 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12709 &self.inlay_hint_cache
12710 }
12711
12712 pub fn replay_insert_event(
12713 &mut self,
12714 text: &str,
12715 relative_utf16_range: Option<Range<isize>>,
12716 cx: &mut ViewContext<Self>,
12717 ) {
12718 if !self.input_enabled {
12719 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12720 return;
12721 }
12722 if let Some(relative_utf16_range) = relative_utf16_range {
12723 let selections = self.selections.all::<OffsetUtf16>(cx);
12724 self.change_selections(None, cx, |s| {
12725 let new_ranges = selections.into_iter().map(|range| {
12726 let start = OffsetUtf16(
12727 range
12728 .head()
12729 .0
12730 .saturating_add_signed(relative_utf16_range.start),
12731 );
12732 let end = OffsetUtf16(
12733 range
12734 .head()
12735 .0
12736 .saturating_add_signed(relative_utf16_range.end),
12737 );
12738 start..end
12739 });
12740 s.select_ranges(new_ranges);
12741 });
12742 }
12743
12744 self.handle_input(text, cx);
12745 }
12746
12747 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12748 let Some(provider) = self.semantics_provider.as_ref() else {
12749 return false;
12750 };
12751
12752 let mut supports = false;
12753 self.buffer().read(cx).for_each_buffer(|buffer| {
12754 supports |= provider.supports_inlay_hints(buffer, cx);
12755 });
12756 supports
12757 }
12758
12759 pub fn focus(&self, cx: &mut WindowContext) {
12760 cx.focus(&self.focus_handle)
12761 }
12762
12763 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12764 self.focus_handle.is_focused(cx)
12765 }
12766
12767 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12768 cx.emit(EditorEvent::Focused);
12769
12770 if let Some(descendant) = self
12771 .last_focused_descendant
12772 .take()
12773 .and_then(|descendant| descendant.upgrade())
12774 {
12775 cx.focus(&descendant);
12776 } else {
12777 if let Some(blame) = self.blame.as_ref() {
12778 blame.update(cx, GitBlame::focus)
12779 }
12780
12781 self.blink_manager.update(cx, BlinkManager::enable);
12782 self.show_cursor_names(cx);
12783 self.buffer.update(cx, |buffer, cx| {
12784 buffer.finalize_last_transaction(cx);
12785 if self.leader_peer_id.is_none() {
12786 buffer.set_active_selections(
12787 &self.selections.disjoint_anchors(),
12788 self.selections.line_mode,
12789 self.cursor_shape,
12790 cx,
12791 );
12792 }
12793 });
12794 }
12795 }
12796
12797 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12798 cx.emit(EditorEvent::FocusedIn)
12799 }
12800
12801 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12802 if event.blurred != self.focus_handle {
12803 self.last_focused_descendant = Some(event.blurred);
12804 }
12805 }
12806
12807 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12808 self.blink_manager.update(cx, BlinkManager::disable);
12809 self.buffer
12810 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12811
12812 if let Some(blame) = self.blame.as_ref() {
12813 blame.update(cx, GitBlame::blur)
12814 }
12815 if !self.hover_state.focused(cx) {
12816 hide_hover(self, cx);
12817 }
12818
12819 self.hide_context_menu(cx);
12820 cx.emit(EditorEvent::Blurred);
12821 cx.notify();
12822 }
12823
12824 pub fn register_action<A: Action>(
12825 &mut self,
12826 listener: impl Fn(&A, &mut WindowContext) + 'static,
12827 ) -> Subscription {
12828 let id = self.next_editor_action_id.post_inc();
12829 let listener = Arc::new(listener);
12830 self.editor_actions.borrow_mut().insert(
12831 id,
12832 Box::new(move |cx| {
12833 let cx = cx.window_context();
12834 let listener = listener.clone();
12835 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12836 let action = action.downcast_ref().unwrap();
12837 if phase == DispatchPhase::Bubble {
12838 listener(action, cx)
12839 }
12840 })
12841 }),
12842 );
12843
12844 let editor_actions = self.editor_actions.clone();
12845 Subscription::new(move || {
12846 editor_actions.borrow_mut().remove(&id);
12847 })
12848 }
12849
12850 pub fn file_header_size(&self) -> u32 {
12851 FILE_HEADER_HEIGHT
12852 }
12853
12854 pub fn revert(
12855 &mut self,
12856 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12857 cx: &mut ViewContext<Self>,
12858 ) {
12859 self.buffer().update(cx, |multi_buffer, cx| {
12860 for (buffer_id, changes) in revert_changes {
12861 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12862 buffer.update(cx, |buffer, cx| {
12863 buffer.edit(
12864 changes.into_iter().map(|(range, text)| {
12865 (range, text.to_string().map(Arc::<str>::from))
12866 }),
12867 None,
12868 cx,
12869 );
12870 });
12871 }
12872 }
12873 });
12874 self.change_selections(None, cx, |selections| selections.refresh());
12875 }
12876
12877 pub fn to_pixel_point(
12878 &mut self,
12879 source: multi_buffer::Anchor,
12880 editor_snapshot: &EditorSnapshot,
12881 cx: &mut ViewContext<Self>,
12882 ) -> Option<gpui::Point<Pixels>> {
12883 let source_point = source.to_display_point(editor_snapshot);
12884 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12885 }
12886
12887 pub fn display_to_pixel_point(
12888 &self,
12889 source: DisplayPoint,
12890 editor_snapshot: &EditorSnapshot,
12891 cx: &WindowContext,
12892 ) -> Option<gpui::Point<Pixels>> {
12893 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12894 let text_layout_details = self.text_layout_details(cx);
12895 let scroll_top = text_layout_details
12896 .scroll_anchor
12897 .scroll_position(editor_snapshot)
12898 .y;
12899
12900 if source.row().as_f32() < scroll_top.floor() {
12901 return None;
12902 }
12903 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12904 let source_y = line_height * (source.row().as_f32() - scroll_top);
12905 Some(gpui::Point::new(source_x, source_y))
12906 }
12907
12908 pub fn has_active_completions_menu(&self) -> bool {
12909 self.context_menu.borrow().as_ref().map_or(false, |menu| {
12910 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12911 })
12912 }
12913
12914 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12915 self.addons
12916 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12917 }
12918
12919 pub fn unregister_addon<T: Addon>(&mut self) {
12920 self.addons.remove(&std::any::TypeId::of::<T>());
12921 }
12922
12923 pub fn addon<T: Addon>(&self) -> Option<&T> {
12924 let type_id = std::any::TypeId::of::<T>();
12925 self.addons
12926 .get(&type_id)
12927 .and_then(|item| item.to_any().downcast_ref::<T>())
12928 }
12929
12930 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12931 let text_layout_details = self.text_layout_details(cx);
12932 let style = &text_layout_details.editor_style;
12933 let font_id = cx.text_system().resolve_font(&style.text.font());
12934 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12935 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12936
12937 let em_width = cx
12938 .text_system()
12939 .typographic_bounds(font_id, font_size, 'm')
12940 .unwrap()
12941 .size
12942 .width;
12943
12944 gpui::Point::new(em_width, line_height)
12945 }
12946}
12947
12948fn get_unstaged_changes_for_buffers(
12949 project: &Model<Project>,
12950 buffers: impl IntoIterator<Item = Model<Buffer>>,
12951 cx: &mut ViewContext<Editor>,
12952) {
12953 let mut tasks = Vec::new();
12954 project.update(cx, |project, cx| {
12955 for buffer in buffers {
12956 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
12957 }
12958 });
12959 cx.spawn(|this, mut cx| async move {
12960 let change_sets = futures::future::join_all(tasks).await;
12961 this.update(&mut cx, |this, cx| {
12962 for change_set in change_sets {
12963 if let Some(change_set) = change_set.log_err() {
12964 this.diff_map.add_change_set(change_set, cx);
12965 }
12966 }
12967 })
12968 .ok();
12969 })
12970 .detach();
12971}
12972
12973fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
12974 let tab_size = tab_size.get() as usize;
12975 let mut width = offset;
12976
12977 for ch in text.chars() {
12978 width += if ch == '\t' {
12979 tab_size - (width % tab_size)
12980 } else {
12981 1
12982 };
12983 }
12984
12985 width - offset
12986}
12987
12988#[cfg(test)]
12989mod tests {
12990 use super::*;
12991
12992 #[test]
12993 fn test_string_size_with_expanded_tabs() {
12994 let nz = |val| NonZeroU32::new(val).unwrap();
12995 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
12996 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
12997 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
12998 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
12999 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13000 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13001 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13002 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13003 }
13004}
13005
13006/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13007struct WordBreakingTokenizer<'a> {
13008 input: &'a str,
13009}
13010
13011impl<'a> WordBreakingTokenizer<'a> {
13012 fn new(input: &'a str) -> Self {
13013 Self { input }
13014 }
13015}
13016
13017fn is_char_ideographic(ch: char) -> bool {
13018 use unicode_script::Script::*;
13019 use unicode_script::UnicodeScript;
13020 matches!(ch.script(), Han | Tangut | Yi)
13021}
13022
13023fn is_grapheme_ideographic(text: &str) -> bool {
13024 text.chars().any(is_char_ideographic)
13025}
13026
13027fn is_grapheme_whitespace(text: &str) -> bool {
13028 text.chars().any(|x| x.is_whitespace())
13029}
13030
13031fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13032 text.chars().next().map_or(false, |ch| {
13033 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13034 })
13035}
13036
13037#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13038struct WordBreakToken<'a> {
13039 token: &'a str,
13040 grapheme_len: usize,
13041 is_whitespace: bool,
13042}
13043
13044impl<'a> Iterator for WordBreakingTokenizer<'a> {
13045 /// Yields a span, the count of graphemes in the token, and whether it was
13046 /// whitespace. Note that it also breaks at word boundaries.
13047 type Item = WordBreakToken<'a>;
13048
13049 fn next(&mut self) -> Option<Self::Item> {
13050 use unicode_segmentation::UnicodeSegmentation;
13051 if self.input.is_empty() {
13052 return None;
13053 }
13054
13055 let mut iter = self.input.graphemes(true).peekable();
13056 let mut offset = 0;
13057 let mut graphemes = 0;
13058 if let Some(first_grapheme) = iter.next() {
13059 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13060 offset += first_grapheme.len();
13061 graphemes += 1;
13062 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13063 if let Some(grapheme) = iter.peek().copied() {
13064 if should_stay_with_preceding_ideograph(grapheme) {
13065 offset += grapheme.len();
13066 graphemes += 1;
13067 }
13068 }
13069 } else {
13070 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13071 let mut next_word_bound = words.peek().copied();
13072 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13073 next_word_bound = words.next();
13074 }
13075 while let Some(grapheme) = iter.peek().copied() {
13076 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13077 break;
13078 };
13079 if is_grapheme_whitespace(grapheme) != is_whitespace {
13080 break;
13081 };
13082 offset += grapheme.len();
13083 graphemes += 1;
13084 iter.next();
13085 }
13086 }
13087 let token = &self.input[..offset];
13088 self.input = &self.input[offset..];
13089 if is_whitespace {
13090 Some(WordBreakToken {
13091 token: " ",
13092 grapheme_len: 1,
13093 is_whitespace: true,
13094 })
13095 } else {
13096 Some(WordBreakToken {
13097 token,
13098 grapheme_len: graphemes,
13099 is_whitespace: false,
13100 })
13101 }
13102 } else {
13103 None
13104 }
13105 }
13106}
13107
13108#[test]
13109fn test_word_breaking_tokenizer() {
13110 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13111 ("", &[]),
13112 (" ", &[(" ", 1, true)]),
13113 ("Ʒ", &[("Ʒ", 1, false)]),
13114 ("Ǽ", &[("Ǽ", 1, false)]),
13115 ("⋑", &[("⋑", 1, false)]),
13116 ("⋑⋑", &[("⋑⋑", 2, false)]),
13117 (
13118 "原理，进而",
13119 &[
13120 ("原", 1, false),
13121 ("理，", 2, false),
13122 ("进", 1, false),
13123 ("而", 1, false),
13124 ],
13125 ),
13126 (
13127 "hello world",
13128 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13129 ),
13130 (
13131 "hello, world",
13132 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13133 ),
13134 (
13135 " hello world",
13136 &[
13137 (" ", 1, true),
13138 ("hello", 5, false),
13139 (" ", 1, true),
13140 ("world", 5, false),
13141 ],
13142 ),
13143 (
13144 "这是什么 \n 钢笔",
13145 &[
13146 ("这", 1, false),
13147 ("是", 1, false),
13148 ("什", 1, false),
13149 ("么", 1, false),
13150 (" ", 1, true),
13151 ("钢", 1, false),
13152 ("笔", 1, false),
13153 ],
13154 ),
13155 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13156 ];
13157
13158 for (input, result) in tests {
13159 assert_eq!(
13160 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13161 result
13162 .iter()
13163 .copied()
13164 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13165 token,
13166 grapheme_len,
13167 is_whitespace,
13168 })
13169 .collect::<Vec<_>>()
13170 );
13171 }
13172}
13173
13174fn wrap_with_prefix(
13175 line_prefix: String,
13176 unwrapped_text: String,
13177 wrap_column: usize,
13178 tab_size: NonZeroU32,
13179) -> String {
13180 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13181 let mut wrapped_text = String::new();
13182 let mut current_line = line_prefix.clone();
13183
13184 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13185 let mut current_line_len = line_prefix_len;
13186 for WordBreakToken {
13187 token,
13188 grapheme_len,
13189 is_whitespace,
13190 } in tokenizer
13191 {
13192 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13193 wrapped_text.push_str(current_line.trim_end());
13194 wrapped_text.push('\n');
13195 current_line.truncate(line_prefix.len());
13196 current_line_len = line_prefix_len;
13197 if !is_whitespace {
13198 current_line.push_str(token);
13199 current_line_len += grapheme_len;
13200 }
13201 } else if !is_whitespace {
13202 current_line.push_str(token);
13203 current_line_len += grapheme_len;
13204 } else if current_line_len != line_prefix_len {
13205 current_line.push(' ');
13206 current_line_len += 1;
13207 }
13208 }
13209
13210 if !current_line.is_empty() {
13211 wrapped_text.push_str(¤t_line);
13212 }
13213 wrapped_text
13214}
13215
13216#[test]
13217fn test_wrap_with_prefix() {
13218 assert_eq!(
13219 wrap_with_prefix(
13220 "# ".to_string(),
13221 "abcdefg".to_string(),
13222 4,
13223 NonZeroU32::new(4).unwrap()
13224 ),
13225 "# abcdefg"
13226 );
13227 assert_eq!(
13228 wrap_with_prefix(
13229 "".to_string(),
13230 "\thello world".to_string(),
13231 8,
13232 NonZeroU32::new(4).unwrap()
13233 ),
13234 "hello\nworld"
13235 );
13236 assert_eq!(
13237 wrap_with_prefix(
13238 "// ".to_string(),
13239 "xx \nyy zz aa bb cc".to_string(),
13240 12,
13241 NonZeroU32::new(4).unwrap()
13242 ),
13243 "// xx yy zz\n// aa bb cc"
13244 );
13245 assert_eq!(
13246 wrap_with_prefix(
13247 String::new(),
13248 "这是什么 \n 钢笔".to_string(),
13249 3,
13250 NonZeroU32::new(4).unwrap()
13251 ),
13252 "这是什\n么 钢\n笔"
13253 );
13254}
13255
13256fn hunks_for_selections(
13257 snapshot: &EditorSnapshot,
13258 selections: &[Selection<Point>],
13259) -> Vec<MultiBufferDiffHunk> {
13260 hunks_for_ranges(
13261 selections.iter().map(|selection| selection.range()),
13262 snapshot,
13263 )
13264}
13265
13266pub fn hunks_for_ranges(
13267 ranges: impl Iterator<Item = Range<Point>>,
13268 snapshot: &EditorSnapshot,
13269) -> Vec<MultiBufferDiffHunk> {
13270 let mut hunks = Vec::new();
13271 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13272 HashMap::default();
13273 for query_range in ranges {
13274 let query_rows =
13275 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13276 for hunk in snapshot.diff_map.diff_hunks_in_range(
13277 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13278 &snapshot.buffer_snapshot,
13279 ) {
13280 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13281 // when the caret is just above or just below the deleted hunk.
13282 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13283 let related_to_selection = if allow_adjacent {
13284 hunk.row_range.overlaps(&query_rows)
13285 || hunk.row_range.start == query_rows.end
13286 || hunk.row_range.end == query_rows.start
13287 } else {
13288 hunk.row_range.overlaps(&query_rows)
13289 };
13290 if related_to_selection {
13291 if !processed_buffer_rows
13292 .entry(hunk.buffer_id)
13293 .or_default()
13294 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13295 {
13296 continue;
13297 }
13298 hunks.push(hunk);
13299 }
13300 }
13301 }
13302
13303 hunks
13304}
13305
13306pub trait CollaborationHub {
13307 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13308 fn user_participant_indices<'a>(
13309 &self,
13310 cx: &'a AppContext,
13311 ) -> &'a HashMap<u64, ParticipantIndex>;
13312 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13313}
13314
13315impl CollaborationHub for Model<Project> {
13316 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13317 self.read(cx).collaborators()
13318 }
13319
13320 fn user_participant_indices<'a>(
13321 &self,
13322 cx: &'a AppContext,
13323 ) -> &'a HashMap<u64, ParticipantIndex> {
13324 self.read(cx).user_store().read(cx).participant_indices()
13325 }
13326
13327 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13328 let this = self.read(cx);
13329 let user_ids = this.collaborators().values().map(|c| c.user_id);
13330 this.user_store().read_with(cx, |user_store, cx| {
13331 user_store.participant_names(user_ids, cx)
13332 })
13333 }
13334}
13335
13336pub trait SemanticsProvider {
13337 fn hover(
13338 &self,
13339 buffer: &Model<Buffer>,
13340 position: text::Anchor,
13341 cx: &mut AppContext,
13342 ) -> Option<Task<Vec<project::Hover>>>;
13343
13344 fn inlay_hints(
13345 &self,
13346 buffer_handle: Model<Buffer>,
13347 range: Range<text::Anchor>,
13348 cx: &mut AppContext,
13349 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13350
13351 fn resolve_inlay_hint(
13352 &self,
13353 hint: InlayHint,
13354 buffer_handle: Model<Buffer>,
13355 server_id: LanguageServerId,
13356 cx: &mut AppContext,
13357 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13358
13359 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13360
13361 fn document_highlights(
13362 &self,
13363 buffer: &Model<Buffer>,
13364 position: text::Anchor,
13365 cx: &mut AppContext,
13366 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13367
13368 fn definitions(
13369 &self,
13370 buffer: &Model<Buffer>,
13371 position: text::Anchor,
13372 kind: GotoDefinitionKind,
13373 cx: &mut AppContext,
13374 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13375
13376 fn range_for_rename(
13377 &self,
13378 buffer: &Model<Buffer>,
13379 position: text::Anchor,
13380 cx: &mut AppContext,
13381 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13382
13383 fn perform_rename(
13384 &self,
13385 buffer: &Model<Buffer>,
13386 position: text::Anchor,
13387 new_name: String,
13388 cx: &mut AppContext,
13389 ) -> Option<Task<Result<ProjectTransaction>>>;
13390}
13391
13392pub trait CompletionProvider {
13393 fn completions(
13394 &self,
13395 buffer: &Model<Buffer>,
13396 buffer_position: text::Anchor,
13397 trigger: CompletionContext,
13398 cx: &mut ViewContext<Editor>,
13399 ) -> Task<Result<Vec<Completion>>>;
13400
13401 fn resolve_completions(
13402 &self,
13403 buffer: Model<Buffer>,
13404 completion_indices: Vec<usize>,
13405 completions: Rc<RefCell<Box<[Completion]>>>,
13406 cx: &mut ViewContext<Editor>,
13407 ) -> Task<Result<bool>>;
13408
13409 fn apply_additional_edits_for_completion(
13410 &self,
13411 buffer: Model<Buffer>,
13412 completion: Completion,
13413 push_to_history: bool,
13414 cx: &mut ViewContext<Editor>,
13415 ) -> Task<Result<Option<language::Transaction>>>;
13416
13417 fn is_completion_trigger(
13418 &self,
13419 buffer: &Model<Buffer>,
13420 position: language::Anchor,
13421 text: &str,
13422 trigger_in_words: bool,
13423 cx: &mut ViewContext<Editor>,
13424 ) -> bool;
13425
13426 fn sort_completions(&self) -> bool {
13427 true
13428 }
13429}
13430
13431pub trait CodeActionProvider {
13432 fn code_actions(
13433 &self,
13434 buffer: &Model<Buffer>,
13435 range: Range<text::Anchor>,
13436 cx: &mut WindowContext,
13437 ) -> Task<Result<Vec<CodeAction>>>;
13438
13439 fn apply_code_action(
13440 &self,
13441 buffer_handle: Model<Buffer>,
13442 action: CodeAction,
13443 excerpt_id: ExcerptId,
13444 push_to_history: bool,
13445 cx: &mut WindowContext,
13446 ) -> Task<Result<ProjectTransaction>>;
13447}
13448
13449impl CodeActionProvider for Model<Project> {
13450 fn code_actions(
13451 &self,
13452 buffer: &Model<Buffer>,
13453 range: Range<text::Anchor>,
13454 cx: &mut WindowContext,
13455 ) -> Task<Result<Vec<CodeAction>>> {
13456 self.update(cx, |project, cx| {
13457 project.code_actions(buffer, range, None, cx)
13458 })
13459 }
13460
13461 fn apply_code_action(
13462 &self,
13463 buffer_handle: Model<Buffer>,
13464 action: CodeAction,
13465 _excerpt_id: ExcerptId,
13466 push_to_history: bool,
13467 cx: &mut WindowContext,
13468 ) -> Task<Result<ProjectTransaction>> {
13469 self.update(cx, |project, cx| {
13470 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13471 })
13472 }
13473}
13474
13475fn snippet_completions(
13476 project: &Project,
13477 buffer: &Model<Buffer>,
13478 buffer_position: text::Anchor,
13479 cx: &mut AppContext,
13480) -> Task<Result<Vec<Completion>>> {
13481 let language = buffer.read(cx).language_at(buffer_position);
13482 let language_name = language.as_ref().map(|language| language.lsp_id());
13483 let snippet_store = project.snippets().read(cx);
13484 let snippets = snippet_store.snippets_for(language_name, cx);
13485
13486 if snippets.is_empty() {
13487 return Task::ready(Ok(vec![]));
13488 }
13489 let snapshot = buffer.read(cx).text_snapshot();
13490 let chars: String = snapshot
13491 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13492 .collect();
13493
13494 let scope = language.map(|language| language.default_scope());
13495 let executor = cx.background_executor().clone();
13496
13497 cx.background_executor().spawn(async move {
13498 let classifier = CharClassifier::new(scope).for_completion(true);
13499 let mut last_word = chars
13500 .chars()
13501 .take_while(|c| classifier.is_word(*c))
13502 .collect::<String>();
13503 last_word = last_word.chars().rev().collect();
13504
13505 if last_word.is_empty() {
13506 return Ok(vec![]);
13507 }
13508
13509 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13510 let to_lsp = |point: &text::Anchor| {
13511 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13512 point_to_lsp(end)
13513 };
13514 let lsp_end = to_lsp(&buffer_position);
13515
13516 let candidates = snippets
13517 .iter()
13518 .enumerate()
13519 .flat_map(|(ix, snippet)| {
13520 snippet
13521 .prefix
13522 .iter()
13523 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13524 })
13525 .collect::<Vec<StringMatchCandidate>>();
13526
13527 let mut matches = fuzzy::match_strings(
13528 &candidates,
13529 &last_word,
13530 last_word.chars().any(|c| c.is_uppercase()),
13531 100,
13532 &Default::default(),
13533 executor,
13534 )
13535 .await;
13536
13537 // Remove all candidates where the query's start does not match the start of any word in the candidate
13538 if let Some(query_start) = last_word.chars().next() {
13539 matches.retain(|string_match| {
13540 split_words(&string_match.string).any(|word| {
13541 // Check that the first codepoint of the word as lowercase matches the first
13542 // codepoint of the query as lowercase
13543 word.chars()
13544 .flat_map(|codepoint| codepoint.to_lowercase())
13545 .zip(query_start.to_lowercase())
13546 .all(|(word_cp, query_cp)| word_cp == query_cp)
13547 })
13548 });
13549 }
13550
13551 let matched_strings = matches
13552 .into_iter()
13553 .map(|m| m.string)
13554 .collect::<HashSet<_>>();
13555
13556 let result: Vec<Completion> = snippets
13557 .into_iter()
13558 .filter_map(|snippet| {
13559 let matching_prefix = snippet
13560 .prefix
13561 .iter()
13562 .find(|prefix| matched_strings.contains(*prefix))?;
13563 let start = as_offset - last_word.len();
13564 let start = snapshot.anchor_before(start);
13565 let range = start..buffer_position;
13566 let lsp_start = to_lsp(&start);
13567 let lsp_range = lsp::Range {
13568 start: lsp_start,
13569 end: lsp_end,
13570 };
13571 Some(Completion {
13572 old_range: range,
13573 new_text: snippet.body.clone(),
13574 label: CodeLabel {
13575 text: matching_prefix.clone(),
13576 runs: vec![],
13577 filter_range: 0..matching_prefix.len(),
13578 },
13579 server_id: LanguageServerId(usize::MAX),
13580 documentation: snippet.description.clone().map(Documentation::SingleLine),
13581 lsp_completion: lsp::CompletionItem {
13582 label: snippet.prefix.first().unwrap().clone(),
13583 kind: Some(CompletionItemKind::SNIPPET),
13584 label_details: snippet.description.as_ref().map(|description| {
13585 lsp::CompletionItemLabelDetails {
13586 detail: Some(description.clone()),
13587 description: None,
13588 }
13589 }),
13590 insert_text_format: Some(InsertTextFormat::SNIPPET),
13591 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13592 lsp::InsertReplaceEdit {
13593 new_text: snippet.body.clone(),
13594 insert: lsp_range,
13595 replace: lsp_range,
13596 },
13597 )),
13598 filter_text: Some(snippet.body.clone()),
13599 sort_text: Some(char::MAX.to_string()),
13600 ..Default::default()
13601 },
13602 confirm: None,
13603 })
13604 })
13605 .collect();
13606
13607 Ok(result)
13608 })
13609}
13610
13611impl CompletionProvider for Model<Project> {
13612 fn completions(
13613 &self,
13614 buffer: &Model<Buffer>,
13615 buffer_position: text::Anchor,
13616 options: CompletionContext,
13617 cx: &mut ViewContext<Editor>,
13618 ) -> Task<Result<Vec<Completion>>> {
13619 self.update(cx, |project, cx| {
13620 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13621 let project_completions = project.completions(buffer, buffer_position, options, cx);
13622 cx.background_executor().spawn(async move {
13623 let mut completions = project_completions.await?;
13624 let snippets_completions = snippets.await?;
13625 completions.extend(snippets_completions);
13626 Ok(completions)
13627 })
13628 })
13629 }
13630
13631 fn resolve_completions(
13632 &self,
13633 buffer: Model<Buffer>,
13634 completion_indices: Vec<usize>,
13635 completions: Rc<RefCell<Box<[Completion]>>>,
13636 cx: &mut ViewContext<Editor>,
13637 ) -> Task<Result<bool>> {
13638 self.update(cx, |project, cx| {
13639 project.resolve_completions(buffer, completion_indices, completions, cx)
13640 })
13641 }
13642
13643 fn apply_additional_edits_for_completion(
13644 &self,
13645 buffer: Model<Buffer>,
13646 completion: Completion,
13647 push_to_history: bool,
13648 cx: &mut ViewContext<Editor>,
13649 ) -> Task<Result<Option<language::Transaction>>> {
13650 self.update(cx, |project, cx| {
13651 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13652 })
13653 }
13654
13655 fn is_completion_trigger(
13656 &self,
13657 buffer: &Model<Buffer>,
13658 position: language::Anchor,
13659 text: &str,
13660 trigger_in_words: bool,
13661 cx: &mut ViewContext<Editor>,
13662 ) -> bool {
13663 let mut chars = text.chars();
13664 let char = if let Some(char) = chars.next() {
13665 char
13666 } else {
13667 return false;
13668 };
13669 if chars.next().is_some() {
13670 return false;
13671 }
13672
13673 let buffer = buffer.read(cx);
13674 let snapshot = buffer.snapshot();
13675 if !snapshot.settings_at(position, cx).show_completions_on_input {
13676 return false;
13677 }
13678 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13679 if trigger_in_words && classifier.is_word(char) {
13680 return true;
13681 }
13682
13683 buffer.completion_triggers().contains(text)
13684 }
13685}
13686
13687impl SemanticsProvider for Model<Project> {
13688 fn hover(
13689 &self,
13690 buffer: &Model<Buffer>,
13691 position: text::Anchor,
13692 cx: &mut AppContext,
13693 ) -> Option<Task<Vec<project::Hover>>> {
13694 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13695 }
13696
13697 fn document_highlights(
13698 &self,
13699 buffer: &Model<Buffer>,
13700 position: text::Anchor,
13701 cx: &mut AppContext,
13702 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13703 Some(self.update(cx, |project, cx| {
13704 project.document_highlights(buffer, position, cx)
13705 }))
13706 }
13707
13708 fn definitions(
13709 &self,
13710 buffer: &Model<Buffer>,
13711 position: text::Anchor,
13712 kind: GotoDefinitionKind,
13713 cx: &mut AppContext,
13714 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13715 Some(self.update(cx, |project, cx| match kind {
13716 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13717 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13718 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13719 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13720 }))
13721 }
13722
13723 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13724 // TODO: make this work for remote projects
13725 self.read(cx)
13726 .language_servers_for_local_buffer(buffer.read(cx), cx)
13727 .any(
13728 |(_, server)| match server.capabilities().inlay_hint_provider {
13729 Some(lsp::OneOf::Left(enabled)) => enabled,
13730 Some(lsp::OneOf::Right(_)) => true,
13731 None => false,
13732 },
13733 )
13734 }
13735
13736 fn inlay_hints(
13737 &self,
13738 buffer_handle: Model<Buffer>,
13739 range: Range<text::Anchor>,
13740 cx: &mut AppContext,
13741 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13742 Some(self.update(cx, |project, cx| {
13743 project.inlay_hints(buffer_handle, range, cx)
13744 }))
13745 }
13746
13747 fn resolve_inlay_hint(
13748 &self,
13749 hint: InlayHint,
13750 buffer_handle: Model<Buffer>,
13751 server_id: LanguageServerId,
13752 cx: &mut AppContext,
13753 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13754 Some(self.update(cx, |project, cx| {
13755 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13756 }))
13757 }
13758
13759 fn range_for_rename(
13760 &self,
13761 buffer: &Model<Buffer>,
13762 position: text::Anchor,
13763 cx: &mut AppContext,
13764 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13765 Some(self.update(cx, |project, cx| {
13766 project.prepare_rename(buffer.clone(), position, cx)
13767 }))
13768 }
13769
13770 fn perform_rename(
13771 &self,
13772 buffer: &Model<Buffer>,
13773 position: text::Anchor,
13774 new_name: String,
13775 cx: &mut AppContext,
13776 ) -> Option<Task<Result<ProjectTransaction>>> {
13777 Some(self.update(cx, |project, cx| {
13778 project.perform_rename(buffer.clone(), position, new_name, cx)
13779 }))
13780 }
13781}
13782
13783fn inlay_hint_settings(
13784 location: Anchor,
13785 snapshot: &MultiBufferSnapshot,
13786 cx: &mut ViewContext<'_, Editor>,
13787) -> InlayHintSettings {
13788 let file = snapshot.file_at(location);
13789 let language = snapshot.language_at(location).map(|l| l.name());
13790 language_settings(language, file, cx).inlay_hints
13791}
13792
13793fn consume_contiguous_rows(
13794 contiguous_row_selections: &mut Vec<Selection<Point>>,
13795 selection: &Selection<Point>,
13796 display_map: &DisplaySnapshot,
13797 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13798) -> (MultiBufferRow, MultiBufferRow) {
13799 contiguous_row_selections.push(selection.clone());
13800 let start_row = MultiBufferRow(selection.start.row);
13801 let mut end_row = ending_row(selection, display_map);
13802
13803 while let Some(next_selection) = selections.peek() {
13804 if next_selection.start.row <= end_row.0 {
13805 end_row = ending_row(next_selection, display_map);
13806 contiguous_row_selections.push(selections.next().unwrap().clone());
13807 } else {
13808 break;
13809 }
13810 }
13811 (start_row, end_row)
13812}
13813
13814fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13815 if next_selection.end.column > 0 || next_selection.is_empty() {
13816 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13817 } else {
13818 MultiBufferRow(next_selection.end.row)
13819 }
13820}
13821
13822impl EditorSnapshot {
13823 pub fn remote_selections_in_range<'a>(
13824 &'a self,
13825 range: &'a Range<Anchor>,
13826 collaboration_hub: &dyn CollaborationHub,
13827 cx: &'a AppContext,
13828 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13829 let participant_names = collaboration_hub.user_names(cx);
13830 let participant_indices = collaboration_hub.user_participant_indices(cx);
13831 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13832 let collaborators_by_replica_id = collaborators_by_peer_id
13833 .iter()
13834 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13835 .collect::<HashMap<_, _>>();
13836 self.buffer_snapshot
13837 .selections_in_range(range, false)
13838 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13839 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13840 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13841 let user_name = participant_names.get(&collaborator.user_id).cloned();
13842 Some(RemoteSelection {
13843 replica_id,
13844 selection,
13845 cursor_shape,
13846 line_mode,
13847 participant_index,
13848 peer_id: collaborator.peer_id,
13849 user_name,
13850 })
13851 })
13852 }
13853
13854 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13855 self.display_snapshot.buffer_snapshot.language_at(position)
13856 }
13857
13858 pub fn is_focused(&self) -> bool {
13859 self.is_focused
13860 }
13861
13862 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13863 self.placeholder_text.as_ref()
13864 }
13865
13866 pub fn scroll_position(&self) -> gpui::Point<f32> {
13867 self.scroll_anchor.scroll_position(&self.display_snapshot)
13868 }
13869
13870 fn gutter_dimensions(
13871 &self,
13872 font_id: FontId,
13873 font_size: Pixels,
13874 em_width: Pixels,
13875 em_advance: Pixels,
13876 max_line_number_width: Pixels,
13877 cx: &AppContext,
13878 ) -> GutterDimensions {
13879 if !self.show_gutter {
13880 return GutterDimensions::default();
13881 }
13882 let descent = cx.text_system().descent(font_id, font_size);
13883
13884 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13885 matches!(
13886 ProjectSettings::get_global(cx).git.git_gutter,
13887 Some(GitGutterSetting::TrackedFiles)
13888 )
13889 });
13890 let gutter_settings = EditorSettings::get_global(cx).gutter;
13891 let show_line_numbers = self
13892 .show_line_numbers
13893 .unwrap_or(gutter_settings.line_numbers);
13894 let line_gutter_width = if show_line_numbers {
13895 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13896 let min_width_for_number_on_gutter = em_advance * 4.0;
13897 max_line_number_width.max(min_width_for_number_on_gutter)
13898 } else {
13899 0.0.into()
13900 };
13901
13902 let show_code_actions = self
13903 .show_code_actions
13904 .unwrap_or(gutter_settings.code_actions);
13905
13906 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13907
13908 let git_blame_entries_width =
13909 self.git_blame_gutter_max_author_length
13910 .map(|max_author_length| {
13911 // Length of the author name, but also space for the commit hash,
13912 // the spacing and the timestamp.
13913 let max_char_count = max_author_length
13914 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13915 + 7 // length of commit sha
13916 + 14 // length of max relative timestamp ("60 minutes ago")
13917 + 4; // gaps and margins
13918
13919 em_advance * max_char_count
13920 });
13921
13922 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13923 left_padding += if show_code_actions || show_runnables {
13924 em_width * 3.0
13925 } else if show_git_gutter && show_line_numbers {
13926 em_width * 2.0
13927 } else if show_git_gutter || show_line_numbers {
13928 em_width
13929 } else {
13930 px(0.)
13931 };
13932
13933 let right_padding = if gutter_settings.folds && show_line_numbers {
13934 em_width * 4.0
13935 } else if gutter_settings.folds {
13936 em_width * 3.0
13937 } else if show_line_numbers {
13938 em_width
13939 } else {
13940 px(0.)
13941 };
13942
13943 GutterDimensions {
13944 left_padding,
13945 right_padding,
13946 width: line_gutter_width + left_padding + right_padding,
13947 margin: -descent,
13948 git_blame_entries_width,
13949 }
13950 }
13951
13952 pub fn render_crease_toggle(
13953 &self,
13954 buffer_row: MultiBufferRow,
13955 row_contains_cursor: bool,
13956 editor: View<Editor>,
13957 cx: &mut WindowContext,
13958 ) -> Option<AnyElement> {
13959 let folded = self.is_line_folded(buffer_row);
13960 let mut is_foldable = false;
13961
13962 if let Some(crease) = self
13963 .crease_snapshot
13964 .query_row(buffer_row, &self.buffer_snapshot)
13965 {
13966 is_foldable = true;
13967 match crease {
13968 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
13969 if let Some(render_toggle) = render_toggle {
13970 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13971 if folded {
13972 editor.update(cx, |editor, cx| {
13973 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13974 });
13975 } else {
13976 editor.update(cx, |editor, cx| {
13977 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13978 });
13979 }
13980 });
13981 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
13982 }
13983 }
13984 }
13985 }
13986
13987 is_foldable |= self.starts_indent(buffer_row);
13988
13989 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
13990 Some(
13991 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
13992 .toggle_state(folded)
13993 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13994 if folded {
13995 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13996 } else {
13997 this.fold_at(&FoldAt { buffer_row }, cx);
13998 }
13999 }))
14000 .into_any_element(),
14001 )
14002 } else {
14003 None
14004 }
14005 }
14006
14007 pub fn render_crease_trailer(
14008 &self,
14009 buffer_row: MultiBufferRow,
14010 cx: &mut WindowContext,
14011 ) -> Option<AnyElement> {
14012 let folded = self.is_line_folded(buffer_row);
14013 if let Crease::Inline { render_trailer, .. } = self
14014 .crease_snapshot
14015 .query_row(buffer_row, &self.buffer_snapshot)?
14016 {
14017 let render_trailer = render_trailer.as_ref()?;
14018 Some(render_trailer(buffer_row, folded, cx))
14019 } else {
14020 None
14021 }
14022 }
14023}
14024
14025impl Deref for EditorSnapshot {
14026 type Target = DisplaySnapshot;
14027
14028 fn deref(&self) -> &Self::Target {
14029 &self.display_snapshot
14030 }
14031}
14032
14033#[derive(Clone, Debug, PartialEq, Eq)]
14034pub enum EditorEvent {
14035 InputIgnored {
14036 text: Arc<str>,
14037 },
14038 InputHandled {
14039 utf16_range_to_replace: Option<Range<isize>>,
14040 text: Arc<str>,
14041 },
14042 ExcerptsAdded {
14043 buffer: Model<Buffer>,
14044 predecessor: ExcerptId,
14045 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14046 },
14047 ExcerptsRemoved {
14048 ids: Vec<ExcerptId>,
14049 },
14050 BufferFoldToggled {
14051 ids: Vec<ExcerptId>,
14052 folded: bool,
14053 },
14054 ExcerptsEdited {
14055 ids: Vec<ExcerptId>,
14056 },
14057 ExcerptsExpanded {
14058 ids: Vec<ExcerptId>,
14059 },
14060 BufferEdited,
14061 Edited {
14062 transaction_id: clock::Lamport,
14063 },
14064 Reparsed(BufferId),
14065 Focused,
14066 FocusedIn,
14067 Blurred,
14068 DirtyChanged,
14069 Saved,
14070 TitleChanged,
14071 DiffBaseChanged,
14072 SelectionsChanged {
14073 local: bool,
14074 },
14075 ScrollPositionChanged {
14076 local: bool,
14077 autoscroll: bool,
14078 },
14079 Closed,
14080 TransactionUndone {
14081 transaction_id: clock::Lamport,
14082 },
14083 TransactionBegun {
14084 transaction_id: clock::Lamport,
14085 },
14086 Reloaded,
14087 CursorShapeChanged,
14088}
14089
14090impl EventEmitter<EditorEvent> for Editor {}
14091
14092impl FocusableView for Editor {
14093 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14094 self.focus_handle.clone()
14095 }
14096}
14097
14098impl Render for Editor {
14099 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14100 let settings = ThemeSettings::get_global(cx);
14101
14102 let mut text_style = match self.mode {
14103 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14104 color: cx.theme().colors().editor_foreground,
14105 font_family: settings.ui_font.family.clone(),
14106 font_features: settings.ui_font.features.clone(),
14107 font_fallbacks: settings.ui_font.fallbacks.clone(),
14108 font_size: rems(0.875).into(),
14109 font_weight: settings.ui_font.weight,
14110 line_height: relative(settings.buffer_line_height.value()),
14111 ..Default::default()
14112 },
14113 EditorMode::Full => TextStyle {
14114 color: cx.theme().colors().editor_foreground,
14115 font_family: settings.buffer_font.family.clone(),
14116 font_features: settings.buffer_font.features.clone(),
14117 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14118 font_size: settings.buffer_font_size(cx).into(),
14119 font_weight: settings.buffer_font.weight,
14120 line_height: relative(settings.buffer_line_height.value()),
14121 ..Default::default()
14122 },
14123 };
14124 if let Some(text_style_refinement) = &self.text_style_refinement {
14125 text_style.refine(text_style_refinement)
14126 }
14127
14128 let background = match self.mode {
14129 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14130 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14131 EditorMode::Full => cx.theme().colors().editor_background,
14132 };
14133
14134 EditorElement::new(
14135 cx.view(),
14136 EditorStyle {
14137 background,
14138 local_player: cx.theme().players().local(),
14139 text: text_style,
14140 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14141 syntax: cx.theme().syntax().clone(),
14142 status: cx.theme().status().clone(),
14143 inlay_hints_style: make_inlay_hints_style(cx),
14144 inline_completion_styles: make_suggestion_styles(cx),
14145 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14146 },
14147 )
14148 }
14149}
14150
14151impl ViewInputHandler for Editor {
14152 fn text_for_range(
14153 &mut self,
14154 range_utf16: Range<usize>,
14155 adjusted_range: &mut Option<Range<usize>>,
14156 cx: &mut ViewContext<Self>,
14157 ) -> Option<String> {
14158 let snapshot = self.buffer.read(cx).read(cx);
14159 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14160 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14161 if (start.0..end.0) != range_utf16 {
14162 adjusted_range.replace(start.0..end.0);
14163 }
14164 Some(snapshot.text_for_range(start..end).collect())
14165 }
14166
14167 fn selected_text_range(
14168 &mut self,
14169 ignore_disabled_input: bool,
14170 cx: &mut ViewContext<Self>,
14171 ) -> Option<UTF16Selection> {
14172 // Prevent the IME menu from appearing when holding down an alphabetic key
14173 // while input is disabled.
14174 if !ignore_disabled_input && !self.input_enabled {
14175 return None;
14176 }
14177
14178 let selection = self.selections.newest::<OffsetUtf16>(cx);
14179 let range = selection.range();
14180
14181 Some(UTF16Selection {
14182 range: range.start.0..range.end.0,
14183 reversed: selection.reversed,
14184 })
14185 }
14186
14187 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14188 let snapshot = self.buffer.read(cx).read(cx);
14189 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14190 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14191 }
14192
14193 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14194 self.clear_highlights::<InputComposition>(cx);
14195 self.ime_transaction.take();
14196 }
14197
14198 fn replace_text_in_range(
14199 &mut self,
14200 range_utf16: Option<Range<usize>>,
14201 text: &str,
14202 cx: &mut ViewContext<Self>,
14203 ) {
14204 if !self.input_enabled {
14205 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14206 return;
14207 }
14208
14209 self.transact(cx, |this, cx| {
14210 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14211 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14212 Some(this.selection_replacement_ranges(range_utf16, cx))
14213 } else {
14214 this.marked_text_ranges(cx)
14215 };
14216
14217 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14218 let newest_selection_id = this.selections.newest_anchor().id;
14219 this.selections
14220 .all::<OffsetUtf16>(cx)
14221 .iter()
14222 .zip(ranges_to_replace.iter())
14223 .find_map(|(selection, range)| {
14224 if selection.id == newest_selection_id {
14225 Some(
14226 (range.start.0 as isize - selection.head().0 as isize)
14227 ..(range.end.0 as isize - selection.head().0 as isize),
14228 )
14229 } else {
14230 None
14231 }
14232 })
14233 });
14234
14235 cx.emit(EditorEvent::InputHandled {
14236 utf16_range_to_replace: range_to_replace,
14237 text: text.into(),
14238 });
14239
14240 if let Some(new_selected_ranges) = new_selected_ranges {
14241 this.change_selections(None, cx, |selections| {
14242 selections.select_ranges(new_selected_ranges)
14243 });
14244 this.backspace(&Default::default(), cx);
14245 }
14246
14247 this.handle_input(text, cx);
14248 });
14249
14250 if let Some(transaction) = self.ime_transaction {
14251 self.buffer.update(cx, |buffer, cx| {
14252 buffer.group_until_transaction(transaction, cx);
14253 });
14254 }
14255
14256 self.unmark_text(cx);
14257 }
14258
14259 fn replace_and_mark_text_in_range(
14260 &mut self,
14261 range_utf16: Option<Range<usize>>,
14262 text: &str,
14263 new_selected_range_utf16: Option<Range<usize>>,
14264 cx: &mut ViewContext<Self>,
14265 ) {
14266 if !self.input_enabled {
14267 return;
14268 }
14269
14270 let transaction = self.transact(cx, |this, cx| {
14271 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14272 let snapshot = this.buffer.read(cx).read(cx);
14273 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14274 for marked_range in &mut marked_ranges {
14275 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14276 marked_range.start.0 += relative_range_utf16.start;
14277 marked_range.start =
14278 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14279 marked_range.end =
14280 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14281 }
14282 }
14283 Some(marked_ranges)
14284 } else if let Some(range_utf16) = range_utf16 {
14285 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14286 Some(this.selection_replacement_ranges(range_utf16, cx))
14287 } else {
14288 None
14289 };
14290
14291 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14292 let newest_selection_id = this.selections.newest_anchor().id;
14293 this.selections
14294 .all::<OffsetUtf16>(cx)
14295 .iter()
14296 .zip(ranges_to_replace.iter())
14297 .find_map(|(selection, range)| {
14298 if selection.id == newest_selection_id {
14299 Some(
14300 (range.start.0 as isize - selection.head().0 as isize)
14301 ..(range.end.0 as isize - selection.head().0 as isize),
14302 )
14303 } else {
14304 None
14305 }
14306 })
14307 });
14308
14309 cx.emit(EditorEvent::InputHandled {
14310 utf16_range_to_replace: range_to_replace,
14311 text: text.into(),
14312 });
14313
14314 if let Some(ranges) = ranges_to_replace {
14315 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14316 }
14317
14318 let marked_ranges = {
14319 let snapshot = this.buffer.read(cx).read(cx);
14320 this.selections
14321 .disjoint_anchors()
14322 .iter()
14323 .map(|selection| {
14324 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14325 })
14326 .collect::<Vec<_>>()
14327 };
14328
14329 if text.is_empty() {
14330 this.unmark_text(cx);
14331 } else {
14332 this.highlight_text::<InputComposition>(
14333 marked_ranges.clone(),
14334 HighlightStyle {
14335 underline: Some(UnderlineStyle {
14336 thickness: px(1.),
14337 color: None,
14338 wavy: false,
14339 }),
14340 ..Default::default()
14341 },
14342 cx,
14343 );
14344 }
14345
14346 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14347 let use_autoclose = this.use_autoclose;
14348 let use_auto_surround = this.use_auto_surround;
14349 this.set_use_autoclose(false);
14350 this.set_use_auto_surround(false);
14351 this.handle_input(text, cx);
14352 this.set_use_autoclose(use_autoclose);
14353 this.set_use_auto_surround(use_auto_surround);
14354
14355 if let Some(new_selected_range) = new_selected_range_utf16 {
14356 let snapshot = this.buffer.read(cx).read(cx);
14357 let new_selected_ranges = marked_ranges
14358 .into_iter()
14359 .map(|marked_range| {
14360 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14361 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14362 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14363 snapshot.clip_offset_utf16(new_start, Bias::Left)
14364 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14365 })
14366 .collect::<Vec<_>>();
14367
14368 drop(snapshot);
14369 this.change_selections(None, cx, |selections| {
14370 selections.select_ranges(new_selected_ranges)
14371 });
14372 }
14373 });
14374
14375 self.ime_transaction = self.ime_transaction.or(transaction);
14376 if let Some(transaction) = self.ime_transaction {
14377 self.buffer.update(cx, |buffer, cx| {
14378 buffer.group_until_transaction(transaction, cx);
14379 });
14380 }
14381
14382 if self.text_highlights::<InputComposition>(cx).is_none() {
14383 self.ime_transaction.take();
14384 }
14385 }
14386
14387 fn bounds_for_range(
14388 &mut self,
14389 range_utf16: Range<usize>,
14390 element_bounds: gpui::Bounds<Pixels>,
14391 cx: &mut ViewContext<Self>,
14392 ) -> Option<gpui::Bounds<Pixels>> {
14393 let text_layout_details = self.text_layout_details(cx);
14394 let gpui::Point {
14395 x: em_width,
14396 y: line_height,
14397 } = self.character_size(cx);
14398
14399 let snapshot = self.snapshot(cx);
14400 let scroll_position = snapshot.scroll_position();
14401 let scroll_left = scroll_position.x * em_width;
14402
14403 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14404 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14405 + self.gutter_dimensions.width
14406 + self.gutter_dimensions.margin;
14407 let y = line_height * (start.row().as_f32() - scroll_position.y);
14408
14409 Some(Bounds {
14410 origin: element_bounds.origin + point(x, y),
14411 size: size(em_width, line_height),
14412 })
14413 }
14414}
14415
14416trait SelectionExt {
14417 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14418 fn spanned_rows(
14419 &self,
14420 include_end_if_at_line_start: bool,
14421 map: &DisplaySnapshot,
14422 ) -> Range<MultiBufferRow>;
14423}
14424
14425impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14426 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14427 let start = self
14428 .start
14429 .to_point(&map.buffer_snapshot)
14430 .to_display_point(map);
14431 let end = self
14432 .end
14433 .to_point(&map.buffer_snapshot)
14434 .to_display_point(map);
14435 if self.reversed {
14436 end..start
14437 } else {
14438 start..end
14439 }
14440 }
14441
14442 fn spanned_rows(
14443 &self,
14444 include_end_if_at_line_start: bool,
14445 map: &DisplaySnapshot,
14446 ) -> Range<MultiBufferRow> {
14447 let start = self.start.to_point(&map.buffer_snapshot);
14448 let mut end = self.end.to_point(&map.buffer_snapshot);
14449 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14450 end.row -= 1;
14451 }
14452
14453 let buffer_start = map.prev_line_boundary(start).0;
14454 let buffer_end = map.next_line_boundary(end).0;
14455 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14456 }
14457}
14458
14459impl<T: InvalidationRegion> InvalidationStack<T> {
14460 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14461 where
14462 S: Clone + ToOffset,
14463 {
14464 while let Some(region) = self.last() {
14465 let all_selections_inside_invalidation_ranges =
14466 if selections.len() == region.ranges().len() {
14467 selections
14468 .iter()
14469 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14470 .all(|(selection, invalidation_range)| {
14471 let head = selection.head().to_offset(buffer);
14472 invalidation_range.start <= head && invalidation_range.end >= head
14473 })
14474 } else {
14475 false
14476 };
14477
14478 if all_selections_inside_invalidation_ranges {
14479 break;
14480 } else {
14481 self.pop();
14482 }
14483 }
14484 }
14485}
14486
14487impl<T> Default for InvalidationStack<T> {
14488 fn default() -> Self {
14489 Self(Default::default())
14490 }
14491}
14492
14493impl<T> Deref for InvalidationStack<T> {
14494 type Target = Vec<T>;
14495
14496 fn deref(&self) -> &Self::Target {
14497 &self.0
14498 }
14499}
14500
14501impl<T> DerefMut for InvalidationStack<T> {
14502 fn deref_mut(&mut self) -> &mut Self::Target {
14503 &mut self.0
14504 }
14505}
14506
14507impl InvalidationRegion for SnippetState {
14508 fn ranges(&self) -> &[Range<Anchor>] {
14509 &self.ranges[self.active_index]
14510 }
14511}
14512
14513pub fn diagnostic_block_renderer(
14514 diagnostic: Diagnostic,
14515 max_message_rows: Option<u8>,
14516 allow_closing: bool,
14517 _is_valid: bool,
14518) -> RenderBlock {
14519 let (text_without_backticks, code_ranges) =
14520 highlight_diagnostic_message(&diagnostic, max_message_rows);
14521
14522 Arc::new(move |cx: &mut BlockContext| {
14523 let group_id: SharedString = cx.block_id.to_string().into();
14524
14525 let mut text_style = cx.text_style().clone();
14526 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14527 let theme_settings = ThemeSettings::get_global(cx);
14528 text_style.font_family = theme_settings.buffer_font.family.clone();
14529 text_style.font_style = theme_settings.buffer_font.style;
14530 text_style.font_features = theme_settings.buffer_font.features.clone();
14531 text_style.font_weight = theme_settings.buffer_font.weight;
14532
14533 let multi_line_diagnostic = diagnostic.message.contains('\n');
14534
14535 let buttons = |diagnostic: &Diagnostic| {
14536 if multi_line_diagnostic {
14537 v_flex()
14538 } else {
14539 h_flex()
14540 }
14541 .when(allow_closing, |div| {
14542 div.children(diagnostic.is_primary.then(|| {
14543 IconButton::new("close-block", IconName::XCircle)
14544 .icon_color(Color::Muted)
14545 .size(ButtonSize::Compact)
14546 .style(ButtonStyle::Transparent)
14547 .visible_on_hover(group_id.clone())
14548 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14549 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14550 }))
14551 })
14552 .child(
14553 IconButton::new("copy-block", IconName::Copy)
14554 .icon_color(Color::Muted)
14555 .size(ButtonSize::Compact)
14556 .style(ButtonStyle::Transparent)
14557 .visible_on_hover(group_id.clone())
14558 .on_click({
14559 let message = diagnostic.message.clone();
14560 move |_click, cx| {
14561 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14562 }
14563 })
14564 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14565 )
14566 };
14567
14568 let icon_size = buttons(&diagnostic)
14569 .into_any_element()
14570 .layout_as_root(AvailableSpace::min_size(), cx);
14571
14572 h_flex()
14573 .id(cx.block_id)
14574 .group(group_id.clone())
14575 .relative()
14576 .size_full()
14577 .block_mouse_down()
14578 .pl(cx.gutter_dimensions.width)
14579 .w(cx.max_width - cx.gutter_dimensions.full_width())
14580 .child(
14581 div()
14582 .flex()
14583 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14584 .flex_shrink(),
14585 )
14586 .child(buttons(&diagnostic))
14587 .child(div().flex().flex_shrink_0().child(
14588 StyledText::new(text_without_backticks.clone()).with_highlights(
14589 &text_style,
14590 code_ranges.iter().map(|range| {
14591 (
14592 range.clone(),
14593 HighlightStyle {
14594 font_weight: Some(FontWeight::BOLD),
14595 ..Default::default()
14596 },
14597 )
14598 }),
14599 ),
14600 ))
14601 .into_any_element()
14602 })
14603}
14604
14605fn inline_completion_edit_text(
14606 editor_snapshot: &EditorSnapshot,
14607 edits: &Vec<(Range<Anchor>, String)>,
14608 cx: &WindowContext,
14609) -> InlineCompletionText {
14610 let edit_start = edits
14611 .first()
14612 .unwrap()
14613 .0
14614 .start
14615 .to_display_point(editor_snapshot);
14616
14617 let mut text = String::new();
14618 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14619 let mut highlights = Vec::new();
14620 for (old_range, new_text) in edits {
14621 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14622 text.extend(
14623 editor_snapshot
14624 .buffer_snapshot
14625 .chunks(offset..old_offset_range.start, false)
14626 .map(|chunk| chunk.text),
14627 );
14628 offset = old_offset_range.end;
14629
14630 let start = text.len();
14631 text.push_str(new_text);
14632 let end = text.len();
14633 highlights.push((
14634 start..end,
14635 HighlightStyle {
14636 background_color: Some(cx.theme().status().created_background),
14637 ..Default::default()
14638 },
14639 ));
14640 }
14641
14642 let edit_end = edits
14643 .last()
14644 .unwrap()
14645 .0
14646 .end
14647 .to_display_point(editor_snapshot);
14648 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14649 .to_offset(editor_snapshot, Bias::Right);
14650 text.extend(
14651 editor_snapshot
14652 .buffer_snapshot
14653 .chunks(offset..end_of_line, false)
14654 .map(|chunk| chunk.text),
14655 );
14656
14657 InlineCompletionText::Edit {
14658 text: text.into(),
14659 highlights,
14660 }
14661}
14662
14663pub fn highlight_diagnostic_message(
14664 diagnostic: &Diagnostic,
14665 mut max_message_rows: Option<u8>,
14666) -> (SharedString, Vec<Range<usize>>) {
14667 let mut text_without_backticks = String::new();
14668 let mut code_ranges = Vec::new();
14669
14670 if let Some(source) = &diagnostic.source {
14671 text_without_backticks.push_str(source);
14672 code_ranges.push(0..source.len());
14673 text_without_backticks.push_str(": ");
14674 }
14675
14676 let mut prev_offset = 0;
14677 let mut in_code_block = false;
14678 let has_row_limit = max_message_rows.is_some();
14679 let mut newline_indices = diagnostic
14680 .message
14681 .match_indices('\n')
14682 .filter(|_| has_row_limit)
14683 .map(|(ix, _)| ix)
14684 .fuse()
14685 .peekable();
14686
14687 for (quote_ix, _) in diagnostic
14688 .message
14689 .match_indices('`')
14690 .chain([(diagnostic.message.len(), "")])
14691 {
14692 let mut first_newline_ix = None;
14693 let mut last_newline_ix = None;
14694 while let Some(newline_ix) = newline_indices.peek() {
14695 if *newline_ix < quote_ix {
14696 if first_newline_ix.is_none() {
14697 first_newline_ix = Some(*newline_ix);
14698 }
14699 last_newline_ix = Some(*newline_ix);
14700
14701 if let Some(rows_left) = &mut max_message_rows {
14702 if *rows_left == 0 {
14703 break;
14704 } else {
14705 *rows_left -= 1;
14706 }
14707 }
14708 let _ = newline_indices.next();
14709 } else {
14710 break;
14711 }
14712 }
14713 let prev_len = text_without_backticks.len();
14714 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14715 text_without_backticks.push_str(new_text);
14716 if in_code_block {
14717 code_ranges.push(prev_len..text_without_backticks.len());
14718 }
14719 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14720 in_code_block = !in_code_block;
14721 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14722 text_without_backticks.push_str("...");
14723 break;
14724 }
14725 }
14726
14727 (text_without_backticks.into(), code_ranges)
14728}
14729
14730fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14731 match severity {
14732 DiagnosticSeverity::ERROR => colors.error,
14733 DiagnosticSeverity::WARNING => colors.warning,
14734 DiagnosticSeverity::INFORMATION => colors.info,
14735 DiagnosticSeverity::HINT => colors.info,
14736 _ => colors.ignored,
14737 }
14738}
14739
14740pub fn styled_runs_for_code_label<'a>(
14741 label: &'a CodeLabel,
14742 syntax_theme: &'a theme::SyntaxTheme,
14743) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14744 let fade_out = HighlightStyle {
14745 fade_out: Some(0.35),
14746 ..Default::default()
14747 };
14748
14749 let mut prev_end = label.filter_range.end;
14750 label
14751 .runs
14752 .iter()
14753 .enumerate()
14754 .flat_map(move |(ix, (range, highlight_id))| {
14755 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14756 style
14757 } else {
14758 return Default::default();
14759 };
14760 let mut muted_style = style;
14761 muted_style.highlight(fade_out);
14762
14763 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14764 if range.start >= label.filter_range.end {
14765 if range.start > prev_end {
14766 runs.push((prev_end..range.start, fade_out));
14767 }
14768 runs.push((range.clone(), muted_style));
14769 } else if range.end <= label.filter_range.end {
14770 runs.push((range.clone(), style));
14771 } else {
14772 runs.push((range.start..label.filter_range.end, style));
14773 runs.push((label.filter_range.end..range.end, muted_style));
14774 }
14775 prev_end = cmp::max(prev_end, range.end);
14776
14777 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14778 runs.push((prev_end..label.text.len(), fade_out));
14779 }
14780
14781 runs
14782 })
14783}
14784
14785pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14786 let mut prev_index = 0;
14787 let mut prev_codepoint: Option<char> = None;
14788 text.char_indices()
14789 .chain([(text.len(), '\0')])
14790 .filter_map(move |(index, codepoint)| {
14791 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14792 let is_boundary = index == text.len()
14793 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14794 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14795 if is_boundary {
14796 let chunk = &text[prev_index..index];
14797 prev_index = index;
14798 Some(chunk)
14799 } else {
14800 None
14801 }
14802 })
14803}
14804
14805pub trait RangeToAnchorExt: Sized {
14806 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14807
14808 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14809 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14810 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14811 }
14812}
14813
14814impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14815 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14816 let start_offset = self.start.to_offset(snapshot);
14817 let end_offset = self.end.to_offset(snapshot);
14818 if start_offset == end_offset {
14819 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14820 } else {
14821 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14822 }
14823 }
14824}
14825
14826pub trait RowExt {
14827 fn as_f32(&self) -> f32;
14828
14829 fn next_row(&self) -> Self;
14830
14831 fn previous_row(&self) -> Self;
14832
14833 fn minus(&self, other: Self) -> u32;
14834}
14835
14836impl RowExt for DisplayRow {
14837 fn as_f32(&self) -> f32 {
14838 self.0 as f32
14839 }
14840
14841 fn next_row(&self) -> Self {
14842 Self(self.0 + 1)
14843 }
14844
14845 fn previous_row(&self) -> Self {
14846 Self(self.0.saturating_sub(1))
14847 }
14848
14849 fn minus(&self, other: Self) -> u32 {
14850 self.0 - other.0
14851 }
14852}
14853
14854impl RowExt for MultiBufferRow {
14855 fn as_f32(&self) -> f32 {
14856 self.0 as f32
14857 }
14858
14859 fn next_row(&self) -> Self {
14860 Self(self.0 + 1)
14861 }
14862
14863 fn previous_row(&self) -> Self {
14864 Self(self.0.saturating_sub(1))
14865 }
14866
14867 fn minus(&self, other: Self) -> u32 {
14868 self.0 - other.0
14869 }
14870}
14871
14872trait RowRangeExt {
14873 type Row;
14874
14875 fn len(&self) -> usize;
14876
14877 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14878}
14879
14880impl RowRangeExt for Range<MultiBufferRow> {
14881 type Row = MultiBufferRow;
14882
14883 fn len(&self) -> usize {
14884 (self.end.0 - self.start.0) as usize
14885 }
14886
14887 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14888 (self.start.0..self.end.0).map(MultiBufferRow)
14889 }
14890}
14891
14892impl RowRangeExt for Range<DisplayRow> {
14893 type Row = DisplayRow;
14894
14895 fn len(&self) -> usize {
14896 (self.end.0 - self.start.0) as usize
14897 }
14898
14899 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14900 (self.start.0..self.end.0).map(DisplayRow)
14901 }
14902}
14903
14904fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14905 if hunk.diff_base_byte_range.is_empty() {
14906 DiffHunkStatus::Added
14907 } else if hunk.row_range.is_empty() {
14908 DiffHunkStatus::Removed
14909 } else {
14910 DiffHunkStatus::Modified
14911 }
14912}
14913
14914/// If select range has more than one line, we
14915/// just point the cursor to range.start.
14916fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14917 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14918 range
14919 } else {
14920 range.start..range.start
14921 }
14922}
14923
14924pub struct KillRing(ClipboardItem);
14925impl Global for KillRing {}
14926
14927const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);