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.show_inline_completions_in_menu(cx) && 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 let had_active_inline_completion = this.has_active_inline_completion();
2860 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2861 s.select(new_selections)
2862 });
2863
2864 if !bracket_inserted {
2865 if let Some(on_type_format_task) =
2866 this.trigger_on_type_formatting(text.to_string(), cx)
2867 {
2868 on_type_format_task.detach_and_log_err(cx);
2869 }
2870 }
2871
2872 let editor_settings = EditorSettings::get_global(cx);
2873 if bracket_inserted
2874 && (editor_settings.auto_signature_help
2875 || editor_settings.show_signature_help_after_edits)
2876 {
2877 this.show_signature_help(&ShowSignatureHelp, cx);
2878 }
2879
2880 let trigger_in_words =
2881 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2882 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2883 linked_editing_ranges::refresh_linked_ranges(this, cx);
2884 this.refresh_inline_completion(true, false, cx);
2885 });
2886 }
2887
2888 fn find_possible_emoji_shortcode_at_position(
2889 snapshot: &MultiBufferSnapshot,
2890 position: Point,
2891 ) -> Option<String> {
2892 let mut chars = Vec::new();
2893 let mut found_colon = false;
2894 for char in snapshot.reversed_chars_at(position).take(100) {
2895 // Found a possible emoji shortcode in the middle of the buffer
2896 if found_colon {
2897 if char.is_whitespace() {
2898 chars.reverse();
2899 return Some(chars.iter().collect());
2900 }
2901 // If the previous character is not a whitespace, we are in the middle of a word
2902 // and we only want to complete the shortcode if the word is made up of other emojis
2903 let mut containing_word = String::new();
2904 for ch in snapshot
2905 .reversed_chars_at(position)
2906 .skip(chars.len() + 1)
2907 .take(100)
2908 {
2909 if ch.is_whitespace() {
2910 break;
2911 }
2912 containing_word.push(ch);
2913 }
2914 let containing_word = containing_word.chars().rev().collect::<String>();
2915 if util::word_consists_of_emojis(containing_word.as_str()) {
2916 chars.reverse();
2917 return Some(chars.iter().collect());
2918 }
2919 }
2920
2921 if char.is_whitespace() || !char.is_ascii() {
2922 return None;
2923 }
2924 if char == ':' {
2925 found_colon = true;
2926 } else {
2927 chars.push(char);
2928 }
2929 }
2930 // Found a possible emoji shortcode at the beginning of the buffer
2931 chars.reverse();
2932 Some(chars.iter().collect())
2933 }
2934
2935 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2936 self.transact(cx, |this, cx| {
2937 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2938 let selections = this.selections.all::<usize>(cx);
2939 let multi_buffer = this.buffer.read(cx);
2940 let buffer = multi_buffer.snapshot(cx);
2941 selections
2942 .iter()
2943 .map(|selection| {
2944 let start_point = selection.start.to_point(&buffer);
2945 let mut indent =
2946 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2947 indent.len = cmp::min(indent.len, start_point.column);
2948 let start = selection.start;
2949 let end = selection.end;
2950 let selection_is_empty = start == end;
2951 let language_scope = buffer.language_scope_at(start);
2952 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2953 &language_scope
2954 {
2955 let leading_whitespace_len = buffer
2956 .reversed_chars_at(start)
2957 .take_while(|c| c.is_whitespace() && *c != '\n')
2958 .map(|c| c.len_utf8())
2959 .sum::<usize>();
2960
2961 let trailing_whitespace_len = buffer
2962 .chars_at(end)
2963 .take_while(|c| c.is_whitespace() && *c != '\n')
2964 .map(|c| c.len_utf8())
2965 .sum::<usize>();
2966
2967 let insert_extra_newline =
2968 language.brackets().any(|(pair, enabled)| {
2969 let pair_start = pair.start.trim_end();
2970 let pair_end = pair.end.trim_start();
2971
2972 enabled
2973 && pair.newline
2974 && buffer.contains_str_at(
2975 end + trailing_whitespace_len,
2976 pair_end,
2977 )
2978 && buffer.contains_str_at(
2979 (start - leading_whitespace_len)
2980 .saturating_sub(pair_start.len()),
2981 pair_start,
2982 )
2983 });
2984
2985 // Comment extension on newline is allowed only for cursor selections
2986 let comment_delimiter = maybe!({
2987 if !selection_is_empty {
2988 return None;
2989 }
2990
2991 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2992 return None;
2993 }
2994
2995 let delimiters = language.line_comment_prefixes();
2996 let max_len_of_delimiter =
2997 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2998 let (snapshot, range) =
2999 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3000
3001 let mut index_of_first_non_whitespace = 0;
3002 let comment_candidate = snapshot
3003 .chars_for_range(range)
3004 .skip_while(|c| {
3005 let should_skip = c.is_whitespace();
3006 if should_skip {
3007 index_of_first_non_whitespace += 1;
3008 }
3009 should_skip
3010 })
3011 .take(max_len_of_delimiter)
3012 .collect::<String>();
3013 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3014 comment_candidate.starts_with(comment_prefix.as_ref())
3015 })?;
3016 let cursor_is_placed_after_comment_marker =
3017 index_of_first_non_whitespace + comment_prefix.len()
3018 <= start_point.column as usize;
3019 if cursor_is_placed_after_comment_marker {
3020 Some(comment_prefix.clone())
3021 } else {
3022 None
3023 }
3024 });
3025 (comment_delimiter, insert_extra_newline)
3026 } else {
3027 (None, false)
3028 };
3029
3030 let capacity_for_delimiter = comment_delimiter
3031 .as_deref()
3032 .map(str::len)
3033 .unwrap_or_default();
3034 let mut new_text =
3035 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3036 new_text.push('\n');
3037 new_text.extend(indent.chars());
3038 if let Some(delimiter) = &comment_delimiter {
3039 new_text.push_str(delimiter);
3040 }
3041 if insert_extra_newline {
3042 new_text = new_text.repeat(2);
3043 }
3044
3045 let anchor = buffer.anchor_after(end);
3046 let new_selection = selection.map(|_| anchor);
3047 (
3048 (start..end, new_text),
3049 (insert_extra_newline, new_selection),
3050 )
3051 })
3052 .unzip()
3053 };
3054
3055 this.edit_with_autoindent(edits, cx);
3056 let buffer = this.buffer.read(cx).snapshot(cx);
3057 let new_selections = selection_fixup_info
3058 .into_iter()
3059 .map(|(extra_newline_inserted, new_selection)| {
3060 let mut cursor = new_selection.end.to_point(&buffer);
3061 if extra_newline_inserted {
3062 cursor.row -= 1;
3063 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3064 }
3065 new_selection.map(|_| cursor)
3066 })
3067 .collect();
3068
3069 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3070 this.refresh_inline_completion(true, false, cx);
3071 });
3072 }
3073
3074 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3075 let buffer = self.buffer.read(cx);
3076 let snapshot = buffer.snapshot(cx);
3077
3078 let mut edits = Vec::new();
3079 let mut rows = Vec::new();
3080
3081 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3082 let cursor = selection.head();
3083 let row = cursor.row;
3084
3085 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3086
3087 let newline = "\n".to_string();
3088 edits.push((start_of_line..start_of_line, newline));
3089
3090 rows.push(row + rows_inserted as u32);
3091 }
3092
3093 self.transact(cx, |editor, cx| {
3094 editor.edit(edits, cx);
3095
3096 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3097 let mut index = 0;
3098 s.move_cursors_with(|map, _, _| {
3099 let row = rows[index];
3100 index += 1;
3101
3102 let point = Point::new(row, 0);
3103 let boundary = map.next_line_boundary(point).1;
3104 let clipped = map.clip_point(boundary, Bias::Left);
3105
3106 (clipped, SelectionGoal::None)
3107 });
3108 });
3109
3110 let mut indent_edits = Vec::new();
3111 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3112 for row in rows {
3113 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3114 for (row, indent) in indents {
3115 if indent.len == 0 {
3116 continue;
3117 }
3118
3119 let text = match indent.kind {
3120 IndentKind::Space => " ".repeat(indent.len as usize),
3121 IndentKind::Tab => "\t".repeat(indent.len as usize),
3122 };
3123 let point = Point::new(row.0, 0);
3124 indent_edits.push((point..point, text));
3125 }
3126 }
3127 editor.edit(indent_edits, cx);
3128 });
3129 }
3130
3131 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3132 let buffer = self.buffer.read(cx);
3133 let snapshot = buffer.snapshot(cx);
3134
3135 let mut edits = Vec::new();
3136 let mut rows = Vec::new();
3137 let mut rows_inserted = 0;
3138
3139 for selection in self.selections.all_adjusted(cx) {
3140 let cursor = selection.head();
3141 let row = cursor.row;
3142
3143 let point = Point::new(row + 1, 0);
3144 let start_of_line = snapshot.clip_point(point, Bias::Left);
3145
3146 let newline = "\n".to_string();
3147 edits.push((start_of_line..start_of_line, newline));
3148
3149 rows_inserted += 1;
3150 rows.push(row + rows_inserted);
3151 }
3152
3153 self.transact(cx, |editor, cx| {
3154 editor.edit(edits, cx);
3155
3156 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3157 let mut index = 0;
3158 s.move_cursors_with(|map, _, _| {
3159 let row = rows[index];
3160 index += 1;
3161
3162 let point = Point::new(row, 0);
3163 let boundary = map.next_line_boundary(point).1;
3164 let clipped = map.clip_point(boundary, Bias::Left);
3165
3166 (clipped, SelectionGoal::None)
3167 });
3168 });
3169
3170 let mut indent_edits = Vec::new();
3171 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3172 for row in rows {
3173 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3174 for (row, indent) in indents {
3175 if indent.len == 0 {
3176 continue;
3177 }
3178
3179 let text = match indent.kind {
3180 IndentKind::Space => " ".repeat(indent.len as usize),
3181 IndentKind::Tab => "\t".repeat(indent.len as usize),
3182 };
3183 let point = Point::new(row.0, 0);
3184 indent_edits.push((point..point, text));
3185 }
3186 }
3187 editor.edit(indent_edits, cx);
3188 });
3189 }
3190
3191 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3192 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3193 original_indent_columns: Vec::new(),
3194 });
3195 self.insert_with_autoindent_mode(text, autoindent, cx);
3196 }
3197
3198 fn insert_with_autoindent_mode(
3199 &mut self,
3200 text: &str,
3201 autoindent_mode: Option<AutoindentMode>,
3202 cx: &mut ViewContext<Self>,
3203 ) {
3204 if self.read_only(cx) {
3205 return;
3206 }
3207
3208 let text: Arc<str> = text.into();
3209 self.transact(cx, |this, cx| {
3210 let old_selections = this.selections.all_adjusted(cx);
3211 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3212 let anchors = {
3213 let snapshot = buffer.read(cx);
3214 old_selections
3215 .iter()
3216 .map(|s| {
3217 let anchor = snapshot.anchor_after(s.head());
3218 s.map(|_| anchor)
3219 })
3220 .collect::<Vec<_>>()
3221 };
3222 buffer.edit(
3223 old_selections
3224 .iter()
3225 .map(|s| (s.start..s.end, text.clone())),
3226 autoindent_mode,
3227 cx,
3228 );
3229 anchors
3230 });
3231
3232 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3233 s.select_anchors(selection_anchors);
3234 })
3235 });
3236 }
3237
3238 fn trigger_completion_on_input(
3239 &mut self,
3240 text: &str,
3241 trigger_in_words: bool,
3242 cx: &mut ViewContext<Self>,
3243 ) {
3244 if self.is_completion_trigger(text, trigger_in_words, cx) {
3245 self.show_completions(
3246 &ShowCompletions {
3247 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3248 },
3249 cx,
3250 );
3251 } else {
3252 self.hide_context_menu(cx);
3253 }
3254 }
3255
3256 fn is_completion_trigger(
3257 &self,
3258 text: &str,
3259 trigger_in_words: bool,
3260 cx: &mut ViewContext<Self>,
3261 ) -> bool {
3262 let position = self.selections.newest_anchor().head();
3263 let multibuffer = self.buffer.read(cx);
3264 let Some(buffer) = position
3265 .buffer_id
3266 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3267 else {
3268 return false;
3269 };
3270
3271 if let Some(completion_provider) = &self.completion_provider {
3272 completion_provider.is_completion_trigger(
3273 &buffer,
3274 position.text_anchor,
3275 text,
3276 trigger_in_words,
3277 cx,
3278 )
3279 } else {
3280 false
3281 }
3282 }
3283
3284 /// If any empty selections is touching the start of its innermost containing autoclose
3285 /// region, expand it to select the brackets.
3286 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3287 let selections = self.selections.all::<usize>(cx);
3288 let buffer = self.buffer.read(cx).read(cx);
3289 let new_selections = self
3290 .selections_with_autoclose_regions(selections, &buffer)
3291 .map(|(mut selection, region)| {
3292 if !selection.is_empty() {
3293 return selection;
3294 }
3295
3296 if let Some(region) = region {
3297 let mut range = region.range.to_offset(&buffer);
3298 if selection.start == range.start && range.start >= region.pair.start.len() {
3299 range.start -= region.pair.start.len();
3300 if buffer.contains_str_at(range.start, ®ion.pair.start)
3301 && buffer.contains_str_at(range.end, ®ion.pair.end)
3302 {
3303 range.end += region.pair.end.len();
3304 selection.start = range.start;
3305 selection.end = range.end;
3306
3307 return selection;
3308 }
3309 }
3310 }
3311
3312 let always_treat_brackets_as_autoclosed = buffer
3313 .settings_at(selection.start, cx)
3314 .always_treat_brackets_as_autoclosed;
3315
3316 if !always_treat_brackets_as_autoclosed {
3317 return selection;
3318 }
3319
3320 if let Some(scope) = buffer.language_scope_at(selection.start) {
3321 for (pair, enabled) in scope.brackets() {
3322 if !enabled || !pair.close {
3323 continue;
3324 }
3325
3326 if buffer.contains_str_at(selection.start, &pair.end) {
3327 let pair_start_len = pair.start.len();
3328 if buffer.contains_str_at(
3329 selection.start.saturating_sub(pair_start_len),
3330 &pair.start,
3331 ) {
3332 selection.start -= pair_start_len;
3333 selection.end += pair.end.len();
3334
3335 return selection;
3336 }
3337 }
3338 }
3339 }
3340
3341 selection
3342 })
3343 .collect();
3344
3345 drop(buffer);
3346 self.change_selections(None, cx, |selections| selections.select(new_selections));
3347 }
3348
3349 /// Iterate the given selections, and for each one, find the smallest surrounding
3350 /// autoclose region. This uses the ordering of the selections and the autoclose
3351 /// regions to avoid repeated comparisons.
3352 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3353 &'a self,
3354 selections: impl IntoIterator<Item = Selection<D>>,
3355 buffer: &'a MultiBufferSnapshot,
3356 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3357 let mut i = 0;
3358 let mut regions = self.autoclose_regions.as_slice();
3359 selections.into_iter().map(move |selection| {
3360 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3361
3362 let mut enclosing = None;
3363 while let Some(pair_state) = regions.get(i) {
3364 if pair_state.range.end.to_offset(buffer) < range.start {
3365 regions = ®ions[i + 1..];
3366 i = 0;
3367 } else if pair_state.range.start.to_offset(buffer) > range.end {
3368 break;
3369 } else {
3370 if pair_state.selection_id == selection.id {
3371 enclosing = Some(pair_state);
3372 }
3373 i += 1;
3374 }
3375 }
3376
3377 (selection, enclosing)
3378 })
3379 }
3380
3381 /// Remove any autoclose regions that no longer contain their selection.
3382 fn invalidate_autoclose_regions(
3383 &mut self,
3384 mut selections: &[Selection<Anchor>],
3385 buffer: &MultiBufferSnapshot,
3386 ) {
3387 self.autoclose_regions.retain(|state| {
3388 let mut i = 0;
3389 while let Some(selection) = selections.get(i) {
3390 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3391 selections = &selections[1..];
3392 continue;
3393 }
3394 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3395 break;
3396 }
3397 if selection.id == state.selection_id {
3398 return true;
3399 } else {
3400 i += 1;
3401 }
3402 }
3403 false
3404 });
3405 }
3406
3407 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3408 let offset = position.to_offset(buffer);
3409 let (word_range, kind) = buffer.surrounding_word(offset, true);
3410 if offset > word_range.start && kind == Some(CharKind::Word) {
3411 Some(
3412 buffer
3413 .text_for_range(word_range.start..offset)
3414 .collect::<String>(),
3415 )
3416 } else {
3417 None
3418 }
3419 }
3420
3421 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3422 self.refresh_inlay_hints(
3423 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3424 cx,
3425 );
3426 }
3427
3428 pub fn inlay_hints_enabled(&self) -> bool {
3429 self.inlay_hint_cache.enabled
3430 }
3431
3432 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3433 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3434 return;
3435 }
3436
3437 let reason_description = reason.description();
3438 let ignore_debounce = matches!(
3439 reason,
3440 InlayHintRefreshReason::SettingsChange(_)
3441 | InlayHintRefreshReason::Toggle(_)
3442 | InlayHintRefreshReason::ExcerptsRemoved(_)
3443 );
3444 let (invalidate_cache, required_languages) = match reason {
3445 InlayHintRefreshReason::Toggle(enabled) => {
3446 self.inlay_hint_cache.enabled = enabled;
3447 if enabled {
3448 (InvalidationStrategy::RefreshRequested, None)
3449 } else {
3450 self.inlay_hint_cache.clear();
3451 self.splice_inlays(
3452 self.visible_inlay_hints(cx)
3453 .iter()
3454 .map(|inlay| inlay.id)
3455 .collect(),
3456 Vec::new(),
3457 cx,
3458 );
3459 return;
3460 }
3461 }
3462 InlayHintRefreshReason::SettingsChange(new_settings) => {
3463 match self.inlay_hint_cache.update_settings(
3464 &self.buffer,
3465 new_settings,
3466 self.visible_inlay_hints(cx),
3467 cx,
3468 ) {
3469 ControlFlow::Break(Some(InlaySplice {
3470 to_remove,
3471 to_insert,
3472 })) => {
3473 self.splice_inlays(to_remove, to_insert, cx);
3474 return;
3475 }
3476 ControlFlow::Break(None) => return,
3477 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3478 }
3479 }
3480 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3481 if let Some(InlaySplice {
3482 to_remove,
3483 to_insert,
3484 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3485 {
3486 self.splice_inlays(to_remove, to_insert, cx);
3487 }
3488 return;
3489 }
3490 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3491 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3492 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3493 }
3494 InlayHintRefreshReason::RefreshRequested => {
3495 (InvalidationStrategy::RefreshRequested, None)
3496 }
3497 };
3498
3499 if let Some(InlaySplice {
3500 to_remove,
3501 to_insert,
3502 }) = self.inlay_hint_cache.spawn_hint_refresh(
3503 reason_description,
3504 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3505 invalidate_cache,
3506 ignore_debounce,
3507 cx,
3508 ) {
3509 self.splice_inlays(to_remove, to_insert, cx);
3510 }
3511 }
3512
3513 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3514 self.display_map
3515 .read(cx)
3516 .current_inlays()
3517 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3518 .cloned()
3519 .collect()
3520 }
3521
3522 pub fn excerpts_for_inlay_hints_query(
3523 &self,
3524 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3525 cx: &mut ViewContext<Editor>,
3526 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3527 let Some(project) = self.project.as_ref() else {
3528 return HashMap::default();
3529 };
3530 let project = project.read(cx);
3531 let multi_buffer = self.buffer().read(cx);
3532 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3533 let multi_buffer_visible_start = self
3534 .scroll_manager
3535 .anchor()
3536 .anchor
3537 .to_point(&multi_buffer_snapshot);
3538 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3539 multi_buffer_visible_start
3540 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3541 Bias::Left,
3542 );
3543 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3544 multi_buffer
3545 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3546 .into_iter()
3547 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3548 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3549 let buffer = buffer_handle.read(cx);
3550 let buffer_file = project::File::from_dyn(buffer.file())?;
3551 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3552 let worktree_entry = buffer_worktree
3553 .read(cx)
3554 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3555 if worktree_entry.is_ignored {
3556 return None;
3557 }
3558
3559 let language = buffer.language()?;
3560 if let Some(restrict_to_languages) = restrict_to_languages {
3561 if !restrict_to_languages.contains(language) {
3562 return None;
3563 }
3564 }
3565 Some((
3566 excerpt_id,
3567 (
3568 buffer_handle,
3569 buffer.version().clone(),
3570 excerpt_visible_range,
3571 ),
3572 ))
3573 })
3574 .collect()
3575 }
3576
3577 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3578 TextLayoutDetails {
3579 text_system: cx.text_system().clone(),
3580 editor_style: self.style.clone().unwrap(),
3581 rem_size: cx.rem_size(),
3582 scroll_anchor: self.scroll_manager.anchor(),
3583 visible_rows: self.visible_line_count(),
3584 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3585 }
3586 }
3587
3588 fn splice_inlays(
3589 &self,
3590 to_remove: Vec<InlayId>,
3591 to_insert: Vec<Inlay>,
3592 cx: &mut ViewContext<Self>,
3593 ) {
3594 self.display_map.update(cx, |display_map, cx| {
3595 display_map.splice_inlays(to_remove, to_insert, cx)
3596 });
3597 cx.notify();
3598 }
3599
3600 fn trigger_on_type_formatting(
3601 &self,
3602 input: String,
3603 cx: &mut ViewContext<Self>,
3604 ) -> Option<Task<Result<()>>> {
3605 if input.len() != 1 {
3606 return None;
3607 }
3608
3609 let project = self.project.as_ref()?;
3610 let position = self.selections.newest_anchor().head();
3611 let (buffer, buffer_position) = self
3612 .buffer
3613 .read(cx)
3614 .text_anchor_for_position(position, cx)?;
3615
3616 let settings = language_settings::language_settings(
3617 buffer
3618 .read(cx)
3619 .language_at(buffer_position)
3620 .map(|l| l.name()),
3621 buffer.read(cx).file(),
3622 cx,
3623 );
3624 if !settings.use_on_type_format {
3625 return None;
3626 }
3627
3628 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3629 // hence we do LSP request & edit on host side only — add formats to host's history.
3630 let push_to_lsp_host_history = true;
3631 // If this is not the host, append its history with new edits.
3632 let push_to_client_history = project.read(cx).is_via_collab();
3633
3634 let on_type_formatting = project.update(cx, |project, cx| {
3635 project.on_type_format(
3636 buffer.clone(),
3637 buffer_position,
3638 input,
3639 push_to_lsp_host_history,
3640 cx,
3641 )
3642 });
3643 Some(cx.spawn(|editor, mut cx| async move {
3644 if let Some(transaction) = on_type_formatting.await? {
3645 if push_to_client_history {
3646 buffer
3647 .update(&mut cx, |buffer, _| {
3648 buffer.push_transaction(transaction, Instant::now());
3649 })
3650 .ok();
3651 }
3652 editor.update(&mut cx, |editor, cx| {
3653 editor.refresh_document_highlights(cx);
3654 })?;
3655 }
3656 Ok(())
3657 }))
3658 }
3659
3660 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3661 if self.pending_rename.is_some() {
3662 return;
3663 }
3664
3665 let Some(provider) = self.completion_provider.as_ref() else {
3666 return;
3667 };
3668
3669 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3670 return;
3671 }
3672
3673 let position = self.selections.newest_anchor().head();
3674 let (buffer, buffer_position) =
3675 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3676 output
3677 } else {
3678 return;
3679 };
3680 let show_completion_documentation = buffer
3681 .read(cx)
3682 .snapshot()
3683 .settings_at(buffer_position, cx)
3684 .show_completion_documentation;
3685
3686 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3687
3688 let trigger_kind = match &options.trigger {
3689 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3690 CompletionTriggerKind::TRIGGER_CHARACTER
3691 }
3692 _ => CompletionTriggerKind::INVOKED,
3693 };
3694 let completion_context = CompletionContext {
3695 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3696 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3697 Some(String::from(trigger))
3698 } else {
3699 None
3700 }
3701 }),
3702 trigger_kind,
3703 };
3704 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3705 let sort_completions = provider.sort_completions();
3706
3707 let id = post_inc(&mut self.next_completion_id);
3708 let task = cx.spawn(|editor, mut cx| {
3709 async move {
3710 editor.update(&mut cx, |this, _| {
3711 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3712 })?;
3713 let completions = completions.await.log_err();
3714 let menu = if let Some(completions) = completions {
3715 let mut menu = CompletionsMenu::new(
3716 id,
3717 sort_completions,
3718 show_completion_documentation,
3719 position,
3720 buffer.clone(),
3721 completions.into(),
3722 );
3723
3724 menu.filter(query.as_deref(), cx.background_executor().clone())
3725 .await;
3726
3727 menu.visible().then_some(menu)
3728 } else {
3729 None
3730 };
3731
3732 editor.update(&mut cx, |editor, cx| {
3733 match editor.context_menu.borrow().as_ref() {
3734 None => {}
3735 Some(CodeContextMenu::Completions(prev_menu)) => {
3736 if prev_menu.id > id {
3737 return;
3738 }
3739 }
3740 _ => return,
3741 }
3742
3743 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3744 let mut menu = menu.unwrap();
3745 menu.resolve_selected_completion(editor.completion_provider.as_deref(), cx);
3746
3747 if editor.show_inline_completions_in_menu(cx) {
3748 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3749 editor.hide_active_inline_completion(cx);
3750 menu.show_inline_completion_hint(hint);
3751 }
3752 } else {
3753 editor.discard_inline_completion(false, cx);
3754 }
3755
3756 *editor.context_menu.borrow_mut() =
3757 Some(CodeContextMenu::Completions(menu));
3758
3759 cx.notify();
3760 } else if editor.completion_tasks.len() <= 1 {
3761 // If there are no more completion tasks and the last menu was
3762 // empty, we should hide it.
3763 let was_hidden = editor.hide_context_menu(cx).is_none();
3764 // If it was already hidden and we don't show inline
3765 // completions in the menu, we should also show the
3766 // inline-completion when available.
3767 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3768 editor.update_visible_inline_completion(cx);
3769 }
3770 }
3771 })?;
3772
3773 Ok::<_, anyhow::Error>(())
3774 }
3775 .log_err()
3776 });
3777
3778 self.completion_tasks.push((id, task));
3779 }
3780
3781 pub fn confirm_completion(
3782 &mut self,
3783 action: &ConfirmCompletion,
3784 cx: &mut ViewContext<Self>,
3785 ) -> Option<Task<Result<()>>> {
3786 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3787 }
3788
3789 pub fn compose_completion(
3790 &mut self,
3791 action: &ComposeCompletion,
3792 cx: &mut ViewContext<Self>,
3793 ) -> Option<Task<Result<()>>> {
3794 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3795 }
3796
3797 fn do_completion(
3798 &mut self,
3799 item_ix: Option<usize>,
3800 intent: CompletionIntent,
3801 cx: &mut ViewContext<Editor>,
3802 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3803 use language::ToOffset as _;
3804
3805 let completions_menu =
3806 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3807 menu
3808 } else {
3809 return None;
3810 };
3811
3812 let mat = completions_menu
3813 .entries
3814 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3815
3816 let mat = match mat {
3817 CompletionEntry::InlineCompletionHint { .. } => {
3818 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3819 cx.stop_propagation();
3820 return Some(Task::ready(Ok(())));
3821 }
3822 CompletionEntry::Match(mat) => {
3823 if self.show_inline_completions_in_menu(cx) {
3824 self.discard_inline_completion(true, cx);
3825 }
3826 mat
3827 }
3828 };
3829
3830 let buffer_handle = completions_menu.buffer;
3831 let completions = completions_menu.completions.borrow_mut();
3832 let completion = completions.get(mat.candidate_id)?;
3833 cx.stop_propagation();
3834
3835 let snippet;
3836 let text;
3837
3838 if completion.is_snippet() {
3839 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3840 text = snippet.as_ref().unwrap().text.clone();
3841 } else {
3842 snippet = None;
3843 text = completion.new_text.clone();
3844 };
3845 let selections = self.selections.all::<usize>(cx);
3846 let buffer = buffer_handle.read(cx);
3847 let old_range = completion.old_range.to_offset(buffer);
3848 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3849
3850 let newest_selection = self.selections.newest_anchor();
3851 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3852 return None;
3853 }
3854
3855 let lookbehind = newest_selection
3856 .start
3857 .text_anchor
3858 .to_offset(buffer)
3859 .saturating_sub(old_range.start);
3860 let lookahead = old_range
3861 .end
3862 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3863 let mut common_prefix_len = old_text
3864 .bytes()
3865 .zip(text.bytes())
3866 .take_while(|(a, b)| a == b)
3867 .count();
3868
3869 let snapshot = self.buffer.read(cx).snapshot(cx);
3870 let mut range_to_replace: Option<Range<isize>> = None;
3871 let mut ranges = Vec::new();
3872 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3873 for selection in &selections {
3874 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3875 let start = selection.start.saturating_sub(lookbehind);
3876 let end = selection.end + lookahead;
3877 if selection.id == newest_selection.id {
3878 range_to_replace = Some(
3879 ((start + common_prefix_len) as isize - selection.start as isize)
3880 ..(end as isize - selection.start as isize),
3881 );
3882 }
3883 ranges.push(start + common_prefix_len..end);
3884 } else {
3885 common_prefix_len = 0;
3886 ranges.clear();
3887 ranges.extend(selections.iter().map(|s| {
3888 if s.id == newest_selection.id {
3889 range_to_replace = Some(
3890 old_range.start.to_offset_utf16(&snapshot).0 as isize
3891 - selection.start as isize
3892 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3893 - selection.start as isize,
3894 );
3895 old_range.clone()
3896 } else {
3897 s.start..s.end
3898 }
3899 }));
3900 break;
3901 }
3902 if !self.linked_edit_ranges.is_empty() {
3903 let start_anchor = snapshot.anchor_before(selection.head());
3904 let end_anchor = snapshot.anchor_after(selection.tail());
3905 if let Some(ranges) = self
3906 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3907 {
3908 for (buffer, edits) in ranges {
3909 linked_edits.entry(buffer.clone()).or_default().extend(
3910 edits
3911 .into_iter()
3912 .map(|range| (range, text[common_prefix_len..].to_owned())),
3913 );
3914 }
3915 }
3916 }
3917 }
3918 let text = &text[common_prefix_len..];
3919
3920 cx.emit(EditorEvent::InputHandled {
3921 utf16_range_to_replace: range_to_replace,
3922 text: text.into(),
3923 });
3924
3925 self.transact(cx, |this, cx| {
3926 if let Some(mut snippet) = snippet {
3927 snippet.text = text.to_string();
3928 for tabstop in snippet
3929 .tabstops
3930 .iter_mut()
3931 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3932 {
3933 tabstop.start -= common_prefix_len as isize;
3934 tabstop.end -= common_prefix_len as isize;
3935 }
3936
3937 this.insert_snippet(&ranges, snippet, cx).log_err();
3938 } else {
3939 this.buffer.update(cx, |buffer, cx| {
3940 buffer.edit(
3941 ranges.iter().map(|range| (range.clone(), text)),
3942 this.autoindent_mode.clone(),
3943 cx,
3944 );
3945 });
3946 }
3947 for (buffer, edits) in linked_edits {
3948 buffer.update(cx, |buffer, cx| {
3949 let snapshot = buffer.snapshot();
3950 let edits = edits
3951 .into_iter()
3952 .map(|(range, text)| {
3953 use text::ToPoint as TP;
3954 let end_point = TP::to_point(&range.end, &snapshot);
3955 let start_point = TP::to_point(&range.start, &snapshot);
3956 (start_point..end_point, text)
3957 })
3958 .sorted_by_key(|(range, _)| range.start)
3959 .collect::<Vec<_>>();
3960 buffer.edit(edits, None, cx);
3961 })
3962 }
3963
3964 this.refresh_inline_completion(true, false, cx);
3965 });
3966
3967 let show_new_completions_on_confirm = completion
3968 .confirm
3969 .as_ref()
3970 .map_or(false, |confirm| confirm(intent, cx));
3971 if show_new_completions_on_confirm {
3972 self.show_completions(&ShowCompletions { trigger: None }, cx);
3973 }
3974
3975 let provider = self.completion_provider.as_ref()?;
3976 let apply_edits = provider.apply_additional_edits_for_completion(
3977 buffer_handle,
3978 completion.clone(),
3979 true,
3980 cx,
3981 );
3982
3983 let editor_settings = EditorSettings::get_global(cx);
3984 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3985 // After the code completion is finished, users often want to know what signatures are needed.
3986 // so we should automatically call signature_help
3987 self.show_signature_help(&ShowSignatureHelp, cx);
3988 }
3989
3990 Some(cx.foreground_executor().spawn(async move {
3991 apply_edits.await?;
3992 Ok(())
3993 }))
3994 }
3995
3996 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3997 let mut context_menu = self.context_menu.borrow_mut();
3998 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3999 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4000 // Toggle if we're selecting the same one
4001 *context_menu = None;
4002 cx.notify();
4003 return;
4004 } else {
4005 // Otherwise, clear it and start a new one
4006 *context_menu = None;
4007 cx.notify();
4008 }
4009 }
4010 drop(context_menu);
4011 let snapshot = self.snapshot(cx);
4012 let deployed_from_indicator = action.deployed_from_indicator;
4013 let mut task = self.code_actions_task.take();
4014 let action = action.clone();
4015 cx.spawn(|editor, mut cx| async move {
4016 while let Some(prev_task) = task {
4017 prev_task.await.log_err();
4018 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4019 }
4020
4021 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4022 if editor.focus_handle.is_focused(cx) {
4023 let multibuffer_point = action
4024 .deployed_from_indicator
4025 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4026 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4027 let (buffer, buffer_row) = snapshot
4028 .buffer_snapshot
4029 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4030 .and_then(|(buffer_snapshot, range)| {
4031 editor
4032 .buffer
4033 .read(cx)
4034 .buffer(buffer_snapshot.remote_id())
4035 .map(|buffer| (buffer, range.start.row))
4036 })?;
4037 let (_, code_actions) = editor
4038 .available_code_actions
4039 .clone()
4040 .and_then(|(location, code_actions)| {
4041 let snapshot = location.buffer.read(cx).snapshot();
4042 let point_range = location.range.to_point(&snapshot);
4043 let point_range = point_range.start.row..=point_range.end.row;
4044 if point_range.contains(&buffer_row) {
4045 Some((location, code_actions))
4046 } else {
4047 None
4048 }
4049 })
4050 .unzip();
4051 let buffer_id = buffer.read(cx).remote_id();
4052 let tasks = editor
4053 .tasks
4054 .get(&(buffer_id, buffer_row))
4055 .map(|t| Arc::new(t.to_owned()));
4056 if tasks.is_none() && code_actions.is_none() {
4057 return None;
4058 }
4059
4060 editor.completion_tasks.clear();
4061 editor.discard_inline_completion(false, cx);
4062 let task_context =
4063 tasks
4064 .as_ref()
4065 .zip(editor.project.clone())
4066 .map(|(tasks, project)| {
4067 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4068 });
4069
4070 Some(cx.spawn(|editor, mut cx| async move {
4071 let task_context = match task_context {
4072 Some(task_context) => task_context.await,
4073 None => None,
4074 };
4075 let resolved_tasks =
4076 tasks.zip(task_context).map(|(tasks, task_context)| {
4077 Rc::new(ResolvedTasks {
4078 templates: tasks.resolve(&task_context).collect(),
4079 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4080 multibuffer_point.row,
4081 tasks.column,
4082 )),
4083 })
4084 });
4085 let spawn_straight_away = resolved_tasks
4086 .as_ref()
4087 .map_or(false, |tasks| tasks.templates.len() == 1)
4088 && code_actions
4089 .as_ref()
4090 .map_or(true, |actions| actions.is_empty());
4091 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4092 *editor.context_menu.borrow_mut() =
4093 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4094 buffer,
4095 actions: CodeActionContents {
4096 tasks: resolved_tasks,
4097 actions: code_actions,
4098 },
4099 selected_item: Default::default(),
4100 scroll_handle: UniformListScrollHandle::default(),
4101 deployed_from_indicator,
4102 }));
4103 if spawn_straight_away {
4104 if let Some(task) = editor.confirm_code_action(
4105 &ConfirmCodeAction { item_ix: Some(0) },
4106 cx,
4107 ) {
4108 cx.notify();
4109 return task;
4110 }
4111 }
4112 cx.notify();
4113 Task::ready(Ok(()))
4114 }) {
4115 task.await
4116 } else {
4117 Ok(())
4118 }
4119 }))
4120 } else {
4121 Some(Task::ready(Ok(())))
4122 }
4123 })?;
4124 if let Some(task) = spawned_test_task {
4125 task.await?;
4126 }
4127
4128 Ok::<_, anyhow::Error>(())
4129 })
4130 .detach_and_log_err(cx);
4131 }
4132
4133 pub fn confirm_code_action(
4134 &mut self,
4135 action: &ConfirmCodeAction,
4136 cx: &mut ViewContext<Self>,
4137 ) -> Option<Task<Result<()>>> {
4138 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4139 menu
4140 } else {
4141 return None;
4142 };
4143 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4144 let action = actions_menu.actions.get(action_ix)?;
4145 let title = action.label();
4146 let buffer = actions_menu.buffer;
4147 let workspace = self.workspace()?;
4148
4149 match action {
4150 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4151 workspace.update(cx, |workspace, cx| {
4152 workspace::tasks::schedule_resolved_task(
4153 workspace,
4154 task_source_kind,
4155 resolved_task,
4156 false,
4157 cx,
4158 );
4159
4160 Some(Task::ready(Ok(())))
4161 })
4162 }
4163 CodeActionsItem::CodeAction {
4164 excerpt_id,
4165 action,
4166 provider,
4167 } => {
4168 let apply_code_action =
4169 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4170 let workspace = workspace.downgrade();
4171 Some(cx.spawn(|editor, cx| async move {
4172 let project_transaction = apply_code_action.await?;
4173 Self::open_project_transaction(
4174 &editor,
4175 workspace,
4176 project_transaction,
4177 title,
4178 cx,
4179 )
4180 .await
4181 }))
4182 }
4183 }
4184 }
4185
4186 pub async fn open_project_transaction(
4187 this: &WeakView<Editor>,
4188 workspace: WeakView<Workspace>,
4189 transaction: ProjectTransaction,
4190 title: String,
4191 mut cx: AsyncWindowContext,
4192 ) -> Result<()> {
4193 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4194 cx.update(|cx| {
4195 entries.sort_unstable_by_key(|(buffer, _)| {
4196 buffer.read(cx).file().map(|f| f.path().clone())
4197 });
4198 })?;
4199
4200 // If the project transaction's edits are all contained within this editor, then
4201 // avoid opening a new editor to display them.
4202
4203 if let Some((buffer, transaction)) = entries.first() {
4204 if entries.len() == 1 {
4205 let excerpt = this.update(&mut cx, |editor, cx| {
4206 editor
4207 .buffer()
4208 .read(cx)
4209 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4210 })?;
4211 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4212 if excerpted_buffer == *buffer {
4213 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4214 let excerpt_range = excerpt_range.to_offset(buffer);
4215 buffer
4216 .edited_ranges_for_transaction::<usize>(transaction)
4217 .all(|range| {
4218 excerpt_range.start <= range.start
4219 && excerpt_range.end >= range.end
4220 })
4221 })?;
4222
4223 if all_edits_within_excerpt {
4224 return Ok(());
4225 }
4226 }
4227 }
4228 }
4229 } else {
4230 return Ok(());
4231 }
4232
4233 let mut ranges_to_highlight = Vec::new();
4234 let excerpt_buffer = cx.new_model(|cx| {
4235 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4236 for (buffer_handle, transaction) in &entries {
4237 let buffer = buffer_handle.read(cx);
4238 ranges_to_highlight.extend(
4239 multibuffer.push_excerpts_with_context_lines(
4240 buffer_handle.clone(),
4241 buffer
4242 .edited_ranges_for_transaction::<usize>(transaction)
4243 .collect(),
4244 DEFAULT_MULTIBUFFER_CONTEXT,
4245 cx,
4246 ),
4247 );
4248 }
4249 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4250 multibuffer
4251 })?;
4252
4253 workspace.update(&mut cx, |workspace, cx| {
4254 let project = workspace.project().clone();
4255 let editor =
4256 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4257 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4258 editor.update(cx, |editor, cx| {
4259 editor.highlight_background::<Self>(
4260 &ranges_to_highlight,
4261 |theme| theme.editor_highlighted_line_background,
4262 cx,
4263 );
4264 });
4265 })?;
4266
4267 Ok(())
4268 }
4269
4270 pub fn clear_code_action_providers(&mut self) {
4271 self.code_action_providers.clear();
4272 self.available_code_actions.take();
4273 }
4274
4275 pub fn push_code_action_provider(
4276 &mut self,
4277 provider: Rc<dyn CodeActionProvider>,
4278 cx: &mut ViewContext<Self>,
4279 ) {
4280 self.code_action_providers.push(provider);
4281 self.refresh_code_actions(cx);
4282 }
4283
4284 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4285 let buffer = self.buffer.read(cx);
4286 let newest_selection = self.selections.newest_anchor().clone();
4287 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4288 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4289 if start_buffer != end_buffer {
4290 return None;
4291 }
4292
4293 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4294 cx.background_executor()
4295 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4296 .await;
4297
4298 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4299 let providers = this.code_action_providers.clone();
4300 let tasks = this
4301 .code_action_providers
4302 .iter()
4303 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4304 .collect::<Vec<_>>();
4305 (providers, tasks)
4306 })?;
4307
4308 let mut actions = Vec::new();
4309 for (provider, provider_actions) in
4310 providers.into_iter().zip(future::join_all(tasks).await)
4311 {
4312 if let Some(provider_actions) = provider_actions.log_err() {
4313 actions.extend(provider_actions.into_iter().map(|action| {
4314 AvailableCodeAction {
4315 excerpt_id: newest_selection.start.excerpt_id,
4316 action,
4317 provider: provider.clone(),
4318 }
4319 }));
4320 }
4321 }
4322
4323 this.update(&mut cx, |this, cx| {
4324 this.available_code_actions = if actions.is_empty() {
4325 None
4326 } else {
4327 Some((
4328 Location {
4329 buffer: start_buffer,
4330 range: start..end,
4331 },
4332 actions.into(),
4333 ))
4334 };
4335 cx.notify();
4336 })
4337 }));
4338 None
4339 }
4340
4341 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4342 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4343 self.show_git_blame_inline = false;
4344
4345 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4346 cx.background_executor().timer(delay).await;
4347
4348 this.update(&mut cx, |this, cx| {
4349 this.show_git_blame_inline = true;
4350 cx.notify();
4351 })
4352 .log_err();
4353 }));
4354 }
4355 }
4356
4357 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4358 if self.pending_rename.is_some() {
4359 return None;
4360 }
4361
4362 let provider = self.semantics_provider.clone()?;
4363 let buffer = self.buffer.read(cx);
4364 let newest_selection = self.selections.newest_anchor().clone();
4365 let cursor_position = newest_selection.head();
4366 let (cursor_buffer, cursor_buffer_position) =
4367 buffer.text_anchor_for_position(cursor_position, cx)?;
4368 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4369 if cursor_buffer != tail_buffer {
4370 return None;
4371 }
4372 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4373 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4374 cx.background_executor()
4375 .timer(Duration::from_millis(debounce))
4376 .await;
4377
4378 let highlights = if let Some(highlights) = cx
4379 .update(|cx| {
4380 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4381 })
4382 .ok()
4383 .flatten()
4384 {
4385 highlights.await.log_err()
4386 } else {
4387 None
4388 };
4389
4390 if let Some(highlights) = highlights {
4391 this.update(&mut cx, |this, cx| {
4392 if this.pending_rename.is_some() {
4393 return;
4394 }
4395
4396 let buffer_id = cursor_position.buffer_id;
4397 let buffer = this.buffer.read(cx);
4398 if !buffer
4399 .text_anchor_for_position(cursor_position, cx)
4400 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4401 {
4402 return;
4403 }
4404
4405 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4406 let mut write_ranges = Vec::new();
4407 let mut read_ranges = Vec::new();
4408 for highlight in highlights {
4409 for (excerpt_id, excerpt_range) in
4410 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4411 {
4412 let start = highlight
4413 .range
4414 .start
4415 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4416 let end = highlight
4417 .range
4418 .end
4419 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4420 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4421 continue;
4422 }
4423
4424 let range = Anchor {
4425 buffer_id,
4426 excerpt_id,
4427 text_anchor: start,
4428 }..Anchor {
4429 buffer_id,
4430 excerpt_id,
4431 text_anchor: end,
4432 };
4433 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4434 write_ranges.push(range);
4435 } else {
4436 read_ranges.push(range);
4437 }
4438 }
4439 }
4440
4441 this.highlight_background::<DocumentHighlightRead>(
4442 &read_ranges,
4443 |theme| theme.editor_document_highlight_read_background,
4444 cx,
4445 );
4446 this.highlight_background::<DocumentHighlightWrite>(
4447 &write_ranges,
4448 |theme| theme.editor_document_highlight_write_background,
4449 cx,
4450 );
4451 cx.notify();
4452 })
4453 .log_err();
4454 }
4455 }));
4456 None
4457 }
4458
4459 pub fn refresh_inline_completion(
4460 &mut self,
4461 debounce: bool,
4462 user_requested: bool,
4463 cx: &mut ViewContext<Self>,
4464 ) -> Option<()> {
4465 let provider = self.inline_completion_provider()?;
4466 let cursor = self.selections.newest_anchor().head();
4467 let (buffer, cursor_buffer_position) =
4468 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4469
4470 if !user_requested
4471 && (!self.enable_inline_completions
4472 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4473 || !self.is_focused(cx))
4474 {
4475 self.discard_inline_completion(false, cx);
4476 return None;
4477 }
4478
4479 self.update_visible_inline_completion(cx);
4480 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4481 Some(())
4482 }
4483
4484 fn cycle_inline_completion(
4485 &mut self,
4486 direction: Direction,
4487 cx: &mut ViewContext<Self>,
4488 ) -> Option<()> {
4489 let provider = self.inline_completion_provider()?;
4490 let cursor = self.selections.newest_anchor().head();
4491 let (buffer, cursor_buffer_position) =
4492 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4493 if !self.enable_inline_completions
4494 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4495 {
4496 return None;
4497 }
4498
4499 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4500 self.update_visible_inline_completion(cx);
4501
4502 Some(())
4503 }
4504
4505 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4506 if !self.has_active_inline_completion() {
4507 self.refresh_inline_completion(false, true, cx);
4508 return;
4509 }
4510
4511 self.update_visible_inline_completion(cx);
4512 }
4513
4514 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4515 self.show_cursor_names(cx);
4516 }
4517
4518 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4519 self.show_cursor_names = true;
4520 cx.notify();
4521 cx.spawn(|this, mut cx| async move {
4522 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4523 this.update(&mut cx, |this, cx| {
4524 this.show_cursor_names = false;
4525 cx.notify()
4526 })
4527 .ok()
4528 })
4529 .detach();
4530 }
4531
4532 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4533 if self.has_active_inline_completion() {
4534 self.cycle_inline_completion(Direction::Next, cx);
4535 } else {
4536 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4537 if is_copilot_disabled {
4538 cx.propagate();
4539 }
4540 }
4541 }
4542
4543 pub fn previous_inline_completion(
4544 &mut self,
4545 _: &PreviousInlineCompletion,
4546 cx: &mut ViewContext<Self>,
4547 ) {
4548 if self.has_active_inline_completion() {
4549 self.cycle_inline_completion(Direction::Prev, cx);
4550 } else {
4551 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4552 if is_copilot_disabled {
4553 cx.propagate();
4554 }
4555 }
4556 }
4557
4558 pub fn accept_inline_completion(
4559 &mut self,
4560 _: &AcceptInlineCompletion,
4561 cx: &mut ViewContext<Self>,
4562 ) {
4563 if self.show_inline_completions_in_menu(cx) {
4564 self.hide_context_menu(cx);
4565 }
4566
4567 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4568 return;
4569 };
4570
4571 self.report_inline_completion_event(true, cx);
4572
4573 match &active_inline_completion.completion {
4574 InlineCompletion::Move(position) => {
4575 let position = *position;
4576 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4577 selections.select_anchor_ranges([position..position]);
4578 });
4579 }
4580 InlineCompletion::Edit(edits) => {
4581 if let Some(provider) = self.inline_completion_provider() {
4582 provider.accept(cx);
4583 }
4584
4585 let snapshot = self.buffer.read(cx).snapshot(cx);
4586 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4587
4588 self.buffer.update(cx, |buffer, cx| {
4589 buffer.edit(edits.iter().cloned(), None, cx)
4590 });
4591
4592 self.change_selections(None, cx, |s| {
4593 s.select_anchor_ranges([last_edit_end..last_edit_end])
4594 });
4595
4596 self.update_visible_inline_completion(cx);
4597 if self.active_inline_completion.is_none() {
4598 self.refresh_inline_completion(true, true, cx);
4599 }
4600
4601 cx.notify();
4602 }
4603 }
4604 }
4605
4606 pub fn accept_partial_inline_completion(
4607 &mut self,
4608 _: &AcceptPartialInlineCompletion,
4609 cx: &mut ViewContext<Self>,
4610 ) {
4611 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4612 return;
4613 };
4614 if self.selections.count() != 1 {
4615 return;
4616 }
4617
4618 self.report_inline_completion_event(true, cx);
4619
4620 match &active_inline_completion.completion {
4621 InlineCompletion::Move(position) => {
4622 let position = *position;
4623 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4624 selections.select_anchor_ranges([position..position]);
4625 });
4626 }
4627 InlineCompletion::Edit(edits) => {
4628 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4629 let text = edits[0].1.as_str();
4630 let mut partial_completion = text
4631 .chars()
4632 .by_ref()
4633 .take_while(|c| c.is_alphabetic())
4634 .collect::<String>();
4635 if partial_completion.is_empty() {
4636 partial_completion = text
4637 .chars()
4638 .by_ref()
4639 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4640 .collect::<String>();
4641 }
4642
4643 cx.emit(EditorEvent::InputHandled {
4644 utf16_range_to_replace: None,
4645 text: partial_completion.clone().into(),
4646 });
4647
4648 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4649
4650 self.refresh_inline_completion(true, true, cx);
4651 cx.notify();
4652 }
4653 }
4654 }
4655 }
4656
4657 fn discard_inline_completion(
4658 &mut self,
4659 should_report_inline_completion_event: bool,
4660 cx: &mut ViewContext<Self>,
4661 ) -> bool {
4662 if should_report_inline_completion_event {
4663 self.report_inline_completion_event(false, cx);
4664 }
4665
4666 if let Some(provider) = self.inline_completion_provider() {
4667 provider.discard(cx);
4668 }
4669
4670 self.take_active_inline_completion(cx).is_some()
4671 }
4672
4673 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4674 let Some(provider) = self.inline_completion_provider() else {
4675 return;
4676 };
4677 let Some(project) = self.project.as_ref() else {
4678 return;
4679 };
4680 let Some((_, buffer, _)) = self
4681 .buffer
4682 .read(cx)
4683 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4684 else {
4685 return;
4686 };
4687
4688 let project = project.read(cx);
4689 let extension = buffer
4690 .read(cx)
4691 .file()
4692 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4693 project.client().telemetry().report_inline_completion_event(
4694 provider.name().into(),
4695 accepted,
4696 extension,
4697 );
4698 }
4699
4700 pub fn has_active_inline_completion(&self) -> bool {
4701 self.active_inline_completion.is_some()
4702 }
4703
4704 fn take_active_inline_completion(
4705 &mut self,
4706 cx: &mut ViewContext<Self>,
4707 ) -> Option<InlineCompletion> {
4708 let active_inline_completion = self.active_inline_completion.take()?;
4709 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4710 self.clear_highlights::<InlineCompletionHighlight>(cx);
4711 Some(active_inline_completion.completion)
4712 }
4713
4714 fn hide_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4715 if let Some(active_inline_completion) = self.active_inline_completion.as_ref() {
4716 self.splice_inlays(
4717 active_inline_completion.inlay_ids.clone(),
4718 Default::default(),
4719 cx,
4720 );
4721 self.clear_highlights::<InlineCompletionHighlight>(cx);
4722 }
4723 }
4724
4725 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4726 let selection = self.selections.newest_anchor();
4727 let cursor = selection.head();
4728 let multibuffer = self.buffer.read(cx).snapshot(cx);
4729 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4730 let excerpt_id = cursor.excerpt_id;
4731
4732 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4733 && (self.context_menu.borrow().is_some()
4734 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4735 if completions_menu_has_precedence
4736 || !offset_selection.is_empty()
4737 || self
4738 .active_inline_completion
4739 .as_ref()
4740 .map_or(false, |completion| {
4741 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4742 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4743 !invalidation_range.contains(&offset_selection.head())
4744 })
4745 {
4746 self.discard_inline_completion(false, cx);
4747 return None;
4748 }
4749
4750 self.take_active_inline_completion(cx);
4751 let provider = self.inline_completion_provider()?;
4752
4753 let (buffer, cursor_buffer_position) =
4754 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4755
4756 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4757 let edits = completion
4758 .edits
4759 .into_iter()
4760 .flat_map(|(range, new_text)| {
4761 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4762 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4763 Some((start..end, new_text))
4764 })
4765 .collect::<Vec<_>>();
4766 if edits.is_empty() {
4767 return None;
4768 }
4769
4770 let first_edit_start = edits.first().unwrap().0.start;
4771 let edit_start_row = first_edit_start
4772 .to_point(&multibuffer)
4773 .row
4774 .saturating_sub(2);
4775
4776 let last_edit_end = edits.last().unwrap().0.end;
4777 let edit_end_row = cmp::min(
4778 multibuffer.max_point().row,
4779 last_edit_end.to_point(&multibuffer).row + 2,
4780 );
4781
4782 let cursor_row = cursor.to_point(&multibuffer).row;
4783
4784 let mut inlay_ids = Vec::new();
4785 let invalidation_row_range;
4786 let completion;
4787 if cursor_row < edit_start_row {
4788 invalidation_row_range = cursor_row..edit_end_row;
4789 completion = InlineCompletion::Move(first_edit_start);
4790 } else if cursor_row > edit_end_row {
4791 invalidation_row_range = edit_start_row..cursor_row;
4792 completion = InlineCompletion::Move(first_edit_start);
4793 } else {
4794 if !self.show_inline_completions_in_menu(cx) || !self.has_active_completions_menu() {
4795 if edits
4796 .iter()
4797 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4798 {
4799 let mut inlays = Vec::new();
4800 for (range, new_text) in &edits {
4801 let inlay = Inlay::inline_completion(
4802 post_inc(&mut self.next_inlay_id),
4803 range.start,
4804 new_text.as_str(),
4805 );
4806 inlay_ids.push(inlay.id);
4807 inlays.push(inlay);
4808 }
4809
4810 self.splice_inlays(vec![], inlays, cx);
4811 } else {
4812 let background_color = cx.theme().status().deleted_background;
4813 self.highlight_text::<InlineCompletionHighlight>(
4814 edits.iter().map(|(range, _)| range.clone()).collect(),
4815 HighlightStyle {
4816 background_color: Some(background_color),
4817 ..Default::default()
4818 },
4819 cx,
4820 );
4821 }
4822 }
4823
4824 invalidation_row_range = edit_start_row..edit_end_row;
4825 completion = InlineCompletion::Edit(edits);
4826 };
4827
4828 let invalidation_range = multibuffer
4829 .anchor_before(Point::new(invalidation_row_range.start, 0))
4830 ..multibuffer.anchor_after(Point::new(
4831 invalidation_row_range.end,
4832 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4833 ));
4834
4835 self.active_inline_completion = Some(InlineCompletionState {
4836 inlay_ids,
4837 completion,
4838 invalidation_range,
4839 });
4840
4841 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4842 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4843 match self.context_menu.borrow_mut().as_mut() {
4844 Some(CodeContextMenu::Completions(menu)) => {
4845 menu.show_inline_completion_hint(hint);
4846 }
4847 _ => {}
4848 }
4849 }
4850 }
4851
4852 cx.notify();
4853
4854 Some(())
4855 }
4856
4857 fn inline_completion_menu_hint(
4858 &mut self,
4859 cx: &mut ViewContext<Self>,
4860 ) -> Option<InlineCompletionMenuHint> {
4861 if self.has_active_inline_completion() {
4862 let provider_name = self.inline_completion_provider()?.display_name();
4863 let editor_snapshot = self.snapshot(cx);
4864
4865 let text = match &self.active_inline_completion.as_ref()?.completion {
4866 InlineCompletion::Edit(edits) => {
4867 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4868 }
4869 InlineCompletion::Move(target) => {
4870 let target_point =
4871 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4872 let target_line = target_point.row + 1;
4873 InlineCompletionText::Move(
4874 format!("Jump to edit in line {}", target_line).into(),
4875 )
4876 }
4877 };
4878
4879 Some(InlineCompletionMenuHint {
4880 provider_name,
4881 text,
4882 })
4883 } else {
4884 None
4885 }
4886 }
4887
4888 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4889 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4890 }
4891
4892 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4893 EditorSettings::get_global(cx).show_inline_completions_in_menu
4894 && self
4895 .inline_completion_provider()
4896 .map_or(false, |provider| provider.show_completions_in_menu())
4897 }
4898
4899 fn render_code_actions_indicator(
4900 &self,
4901 _style: &EditorStyle,
4902 row: DisplayRow,
4903 is_active: bool,
4904 cx: &mut ViewContext<Self>,
4905 ) -> Option<IconButton> {
4906 if self.available_code_actions.is_some() {
4907 Some(
4908 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4909 .shape(ui::IconButtonShape::Square)
4910 .icon_size(IconSize::XSmall)
4911 .icon_color(Color::Muted)
4912 .toggle_state(is_active)
4913 .tooltip({
4914 let focus_handle = self.focus_handle.clone();
4915 move |cx| {
4916 Tooltip::for_action_in(
4917 "Toggle Code Actions",
4918 &ToggleCodeActions {
4919 deployed_from_indicator: None,
4920 },
4921 &focus_handle,
4922 cx,
4923 )
4924 }
4925 })
4926 .on_click(cx.listener(move |editor, _e, cx| {
4927 editor.focus(cx);
4928 editor.toggle_code_actions(
4929 &ToggleCodeActions {
4930 deployed_from_indicator: Some(row),
4931 },
4932 cx,
4933 );
4934 })),
4935 )
4936 } else {
4937 None
4938 }
4939 }
4940
4941 fn clear_tasks(&mut self) {
4942 self.tasks.clear()
4943 }
4944
4945 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4946 if self.tasks.insert(key, value).is_some() {
4947 // This case should hopefully be rare, but just in case...
4948 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4949 }
4950 }
4951
4952 fn build_tasks_context(
4953 project: &Model<Project>,
4954 buffer: &Model<Buffer>,
4955 buffer_row: u32,
4956 tasks: &Arc<RunnableTasks>,
4957 cx: &mut ViewContext<Self>,
4958 ) -> Task<Option<task::TaskContext>> {
4959 let position = Point::new(buffer_row, tasks.column);
4960 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4961 let location = Location {
4962 buffer: buffer.clone(),
4963 range: range_start..range_start,
4964 };
4965 // Fill in the environmental variables from the tree-sitter captures
4966 let mut captured_task_variables = TaskVariables::default();
4967 for (capture_name, value) in tasks.extra_variables.clone() {
4968 captured_task_variables.insert(
4969 task::VariableName::Custom(capture_name.into()),
4970 value.clone(),
4971 );
4972 }
4973 project.update(cx, |project, cx| {
4974 project.task_store().update(cx, |task_store, cx| {
4975 task_store.task_context_for_location(captured_task_variables, location, cx)
4976 })
4977 })
4978 }
4979
4980 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4981 let Some((workspace, _)) = self.workspace.clone() else {
4982 return;
4983 };
4984 let Some(project) = self.project.clone() else {
4985 return;
4986 };
4987
4988 // Try to find a closest, enclosing node using tree-sitter that has a
4989 // task
4990 let Some((buffer, buffer_row, tasks)) = self
4991 .find_enclosing_node_task(cx)
4992 // Or find the task that's closest in row-distance.
4993 .or_else(|| self.find_closest_task(cx))
4994 else {
4995 return;
4996 };
4997
4998 let reveal_strategy = action.reveal;
4999 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5000 cx.spawn(|_, mut cx| async move {
5001 let context = task_context.await?;
5002 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5003
5004 let resolved = resolved_task.resolved.as_mut()?;
5005 resolved.reveal = reveal_strategy;
5006
5007 workspace
5008 .update(&mut cx, |workspace, cx| {
5009 workspace::tasks::schedule_resolved_task(
5010 workspace,
5011 task_source_kind,
5012 resolved_task,
5013 false,
5014 cx,
5015 );
5016 })
5017 .ok()
5018 })
5019 .detach();
5020 }
5021
5022 fn find_closest_task(
5023 &mut self,
5024 cx: &mut ViewContext<Self>,
5025 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5026 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5027
5028 let ((buffer_id, row), tasks) = self
5029 .tasks
5030 .iter()
5031 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5032
5033 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5034 let tasks = Arc::new(tasks.to_owned());
5035 Some((buffer, *row, tasks))
5036 }
5037
5038 fn find_enclosing_node_task(
5039 &mut self,
5040 cx: &mut ViewContext<Self>,
5041 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5042 let snapshot = self.buffer.read(cx).snapshot(cx);
5043 let offset = self.selections.newest::<usize>(cx).head();
5044 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5045 let buffer_id = excerpt.buffer().remote_id();
5046
5047 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5048 let mut cursor = layer.node().walk();
5049
5050 while cursor.goto_first_child_for_byte(offset).is_some() {
5051 if cursor.node().end_byte() == offset {
5052 cursor.goto_next_sibling();
5053 }
5054 }
5055
5056 // Ascend to the smallest ancestor that contains the range and has a task.
5057 loop {
5058 let node = cursor.node();
5059 let node_range = node.byte_range();
5060 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5061
5062 // Check if this node contains our offset
5063 if node_range.start <= offset && node_range.end >= offset {
5064 // If it contains offset, check for task
5065 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5066 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5067 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5068 }
5069 }
5070
5071 if !cursor.goto_parent() {
5072 break;
5073 }
5074 }
5075 None
5076 }
5077
5078 fn render_run_indicator(
5079 &self,
5080 _style: &EditorStyle,
5081 is_active: bool,
5082 row: DisplayRow,
5083 cx: &mut ViewContext<Self>,
5084 ) -> IconButton {
5085 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5086 .shape(ui::IconButtonShape::Square)
5087 .icon_size(IconSize::XSmall)
5088 .icon_color(Color::Muted)
5089 .toggle_state(is_active)
5090 .on_click(cx.listener(move |editor, _e, cx| {
5091 editor.focus(cx);
5092 editor.toggle_code_actions(
5093 &ToggleCodeActions {
5094 deployed_from_indicator: Some(row),
5095 },
5096 cx,
5097 );
5098 }))
5099 }
5100
5101 #[cfg(feature = "test-support")]
5102 pub fn context_menu_visible(&self) -> bool {
5103 self.context_menu
5104 .borrow()
5105 .as_ref()
5106 .map_or(false, |menu| menu.visible())
5107 }
5108
5109 #[cfg(feature = "test-support")]
5110 pub fn context_menu_contains_inline_completion(&self) -> bool {
5111 self.context_menu
5112 .borrow()
5113 .as_ref()
5114 .map_or(false, |menu| match menu {
5115 CodeContextMenu::Completions(menu) => menu.entries.first().map_or(false, |entry| {
5116 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5117 }),
5118 CodeContextMenu::CodeActions(_) => false,
5119 })
5120 }
5121
5122 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5123 self.context_menu
5124 .borrow()
5125 .as_ref()
5126 .map(|menu| menu.origin(cursor_position))
5127 }
5128
5129 fn render_context_menu(
5130 &self,
5131 style: &EditorStyle,
5132 max_height_in_lines: u32,
5133 cx: &mut ViewContext<Editor>,
5134 ) -> Option<AnyElement> {
5135 self.context_menu.borrow().as_ref().and_then(|menu| {
5136 if menu.visible() {
5137 Some(menu.render(style, max_height_in_lines, cx))
5138 } else {
5139 None
5140 }
5141 })
5142 }
5143
5144 fn render_context_menu_aside(
5145 &self,
5146 style: &EditorStyle,
5147 max_height: Pixels,
5148 cx: &mut ViewContext<Editor>,
5149 ) -> Option<AnyElement> {
5150 self.context_menu.borrow().as_ref().and_then(|menu| {
5151 if menu.visible() {
5152 menu.render_aside(
5153 style,
5154 max_height,
5155 self.workspace.as_ref().map(|(w, _)| w.clone()),
5156 cx,
5157 )
5158 } else {
5159 None
5160 }
5161 })
5162 }
5163
5164 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5165 cx.notify();
5166 self.completion_tasks.clear();
5167 let context_menu = self.context_menu.borrow_mut().take();
5168 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5169 self.update_visible_inline_completion(cx);
5170 }
5171 context_menu
5172 }
5173
5174 fn show_snippet_choices(
5175 &mut self,
5176 choices: &Vec<String>,
5177 selection: Range<Anchor>,
5178 cx: &mut ViewContext<Self>,
5179 ) {
5180 if selection.start.buffer_id.is_none() {
5181 return;
5182 }
5183 let buffer_id = selection.start.buffer_id.unwrap();
5184 let buffer = self.buffer().read(cx).buffer(buffer_id);
5185 let id = post_inc(&mut self.next_completion_id);
5186
5187 if let Some(buffer) = buffer {
5188 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5189 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5190 ));
5191 }
5192 }
5193
5194 pub fn insert_snippet(
5195 &mut self,
5196 insertion_ranges: &[Range<usize>],
5197 snippet: Snippet,
5198 cx: &mut ViewContext<Self>,
5199 ) -> Result<()> {
5200 struct Tabstop<T> {
5201 is_end_tabstop: bool,
5202 ranges: Vec<Range<T>>,
5203 choices: Option<Vec<String>>,
5204 }
5205
5206 let tabstops = self.buffer.update(cx, |buffer, cx| {
5207 let snippet_text: Arc<str> = snippet.text.clone().into();
5208 buffer.edit(
5209 insertion_ranges
5210 .iter()
5211 .cloned()
5212 .map(|range| (range, snippet_text.clone())),
5213 Some(AutoindentMode::EachLine),
5214 cx,
5215 );
5216
5217 let snapshot = &*buffer.read(cx);
5218 let snippet = &snippet;
5219 snippet
5220 .tabstops
5221 .iter()
5222 .map(|tabstop| {
5223 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5224 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5225 });
5226 let mut tabstop_ranges = tabstop
5227 .ranges
5228 .iter()
5229 .flat_map(|tabstop_range| {
5230 let mut delta = 0_isize;
5231 insertion_ranges.iter().map(move |insertion_range| {
5232 let insertion_start = insertion_range.start as isize + delta;
5233 delta +=
5234 snippet.text.len() as isize - insertion_range.len() as isize;
5235
5236 let start = ((insertion_start + tabstop_range.start) as usize)
5237 .min(snapshot.len());
5238 let end = ((insertion_start + tabstop_range.end) as usize)
5239 .min(snapshot.len());
5240 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5241 })
5242 })
5243 .collect::<Vec<_>>();
5244 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5245
5246 Tabstop {
5247 is_end_tabstop,
5248 ranges: tabstop_ranges,
5249 choices: tabstop.choices.clone(),
5250 }
5251 })
5252 .collect::<Vec<_>>()
5253 });
5254 if let Some(tabstop) = tabstops.first() {
5255 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5256 s.select_ranges(tabstop.ranges.iter().cloned());
5257 });
5258
5259 if let Some(choices) = &tabstop.choices {
5260 if let Some(selection) = tabstop.ranges.first() {
5261 self.show_snippet_choices(choices, selection.clone(), cx)
5262 }
5263 }
5264
5265 // If we're already at the last tabstop and it's at the end of the snippet,
5266 // we're done, we don't need to keep the state around.
5267 if !tabstop.is_end_tabstop {
5268 let choices = tabstops
5269 .iter()
5270 .map(|tabstop| tabstop.choices.clone())
5271 .collect();
5272
5273 let ranges = tabstops
5274 .into_iter()
5275 .map(|tabstop| tabstop.ranges)
5276 .collect::<Vec<_>>();
5277
5278 self.snippet_stack.push(SnippetState {
5279 active_index: 0,
5280 ranges,
5281 choices,
5282 });
5283 }
5284
5285 // Check whether the just-entered snippet ends with an auto-closable bracket.
5286 if self.autoclose_regions.is_empty() {
5287 let snapshot = self.buffer.read(cx).snapshot(cx);
5288 for selection in &mut self.selections.all::<Point>(cx) {
5289 let selection_head = selection.head();
5290 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5291 continue;
5292 };
5293
5294 let mut bracket_pair = None;
5295 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5296 let prev_chars = snapshot
5297 .reversed_chars_at(selection_head)
5298 .collect::<String>();
5299 for (pair, enabled) in scope.brackets() {
5300 if enabled
5301 && pair.close
5302 && prev_chars.starts_with(pair.start.as_str())
5303 && next_chars.starts_with(pair.end.as_str())
5304 {
5305 bracket_pair = Some(pair.clone());
5306 break;
5307 }
5308 }
5309 if let Some(pair) = bracket_pair {
5310 let start = snapshot.anchor_after(selection_head);
5311 let end = snapshot.anchor_after(selection_head);
5312 self.autoclose_regions.push(AutocloseRegion {
5313 selection_id: selection.id,
5314 range: start..end,
5315 pair,
5316 });
5317 }
5318 }
5319 }
5320 }
5321 Ok(())
5322 }
5323
5324 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5325 self.move_to_snippet_tabstop(Bias::Right, cx)
5326 }
5327
5328 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5329 self.move_to_snippet_tabstop(Bias::Left, cx)
5330 }
5331
5332 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5333 if let Some(mut snippet) = self.snippet_stack.pop() {
5334 match bias {
5335 Bias::Left => {
5336 if snippet.active_index > 0 {
5337 snippet.active_index -= 1;
5338 } else {
5339 self.snippet_stack.push(snippet);
5340 return false;
5341 }
5342 }
5343 Bias::Right => {
5344 if snippet.active_index + 1 < snippet.ranges.len() {
5345 snippet.active_index += 1;
5346 } else {
5347 self.snippet_stack.push(snippet);
5348 return false;
5349 }
5350 }
5351 }
5352 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5353 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5354 s.select_anchor_ranges(current_ranges.iter().cloned())
5355 });
5356
5357 if let Some(choices) = &snippet.choices[snippet.active_index] {
5358 if let Some(selection) = current_ranges.first() {
5359 self.show_snippet_choices(&choices, selection.clone(), cx);
5360 }
5361 }
5362
5363 // If snippet state is not at the last tabstop, push it back on the stack
5364 if snippet.active_index + 1 < snippet.ranges.len() {
5365 self.snippet_stack.push(snippet);
5366 }
5367 return true;
5368 }
5369 }
5370
5371 false
5372 }
5373
5374 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5375 self.transact(cx, |this, cx| {
5376 this.select_all(&SelectAll, cx);
5377 this.insert("", cx);
5378 });
5379 }
5380
5381 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5382 self.transact(cx, |this, cx| {
5383 this.select_autoclose_pair(cx);
5384 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5385 if !this.linked_edit_ranges.is_empty() {
5386 let selections = this.selections.all::<MultiBufferPoint>(cx);
5387 let snapshot = this.buffer.read(cx).snapshot(cx);
5388
5389 for selection in selections.iter() {
5390 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5391 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5392 if selection_start.buffer_id != selection_end.buffer_id {
5393 continue;
5394 }
5395 if let Some(ranges) =
5396 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5397 {
5398 for (buffer, entries) in ranges {
5399 linked_ranges.entry(buffer).or_default().extend(entries);
5400 }
5401 }
5402 }
5403 }
5404
5405 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5406 if !this.selections.line_mode {
5407 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5408 for selection in &mut selections {
5409 if selection.is_empty() {
5410 let old_head = selection.head();
5411 let mut new_head =
5412 movement::left(&display_map, old_head.to_display_point(&display_map))
5413 .to_point(&display_map);
5414 if let Some((buffer, line_buffer_range)) = display_map
5415 .buffer_snapshot
5416 .buffer_line_for_row(MultiBufferRow(old_head.row))
5417 {
5418 let indent_size =
5419 buffer.indent_size_for_line(line_buffer_range.start.row);
5420 let indent_len = match indent_size.kind {
5421 IndentKind::Space => {
5422 buffer.settings_at(line_buffer_range.start, cx).tab_size
5423 }
5424 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5425 };
5426 if old_head.column <= indent_size.len && old_head.column > 0 {
5427 let indent_len = indent_len.get();
5428 new_head = cmp::min(
5429 new_head,
5430 MultiBufferPoint::new(
5431 old_head.row,
5432 ((old_head.column - 1) / indent_len) * indent_len,
5433 ),
5434 );
5435 }
5436 }
5437
5438 selection.set_head(new_head, SelectionGoal::None);
5439 }
5440 }
5441 }
5442
5443 this.signature_help_state.set_backspace_pressed(true);
5444 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5445 this.insert("", cx);
5446 let empty_str: Arc<str> = Arc::from("");
5447 for (buffer, edits) in linked_ranges {
5448 let snapshot = buffer.read(cx).snapshot();
5449 use text::ToPoint as TP;
5450
5451 let edits = edits
5452 .into_iter()
5453 .map(|range| {
5454 let end_point = TP::to_point(&range.end, &snapshot);
5455 let mut start_point = TP::to_point(&range.start, &snapshot);
5456
5457 if end_point == start_point {
5458 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5459 .saturating_sub(1);
5460 start_point =
5461 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5462 };
5463
5464 (start_point..end_point, empty_str.clone())
5465 })
5466 .sorted_by_key(|(range, _)| range.start)
5467 .collect::<Vec<_>>();
5468 buffer.update(cx, |this, cx| {
5469 this.edit(edits, None, cx);
5470 })
5471 }
5472 this.refresh_inline_completion(true, false, cx);
5473 linked_editing_ranges::refresh_linked_ranges(this, cx);
5474 });
5475 }
5476
5477 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5478 self.transact(cx, |this, cx| {
5479 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5480 let line_mode = s.line_mode;
5481 s.move_with(|map, selection| {
5482 if selection.is_empty() && !line_mode {
5483 let cursor = movement::right(map, selection.head());
5484 selection.end = cursor;
5485 selection.reversed = true;
5486 selection.goal = SelectionGoal::None;
5487 }
5488 })
5489 });
5490 this.insert("", cx);
5491 this.refresh_inline_completion(true, false, cx);
5492 });
5493 }
5494
5495 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5496 if self.move_to_prev_snippet_tabstop(cx) {
5497 return;
5498 }
5499
5500 self.outdent(&Outdent, cx);
5501 }
5502
5503 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5504 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5505 return;
5506 }
5507
5508 let mut selections = self.selections.all_adjusted(cx);
5509 let buffer = self.buffer.read(cx);
5510 let snapshot = buffer.snapshot(cx);
5511 let rows_iter = selections.iter().map(|s| s.head().row);
5512 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5513
5514 let mut edits = Vec::new();
5515 let mut prev_edited_row = 0;
5516 let mut row_delta = 0;
5517 for selection in &mut selections {
5518 if selection.start.row != prev_edited_row {
5519 row_delta = 0;
5520 }
5521 prev_edited_row = selection.end.row;
5522
5523 // If the selection is non-empty, then increase the indentation of the selected lines.
5524 if !selection.is_empty() {
5525 row_delta =
5526 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5527 continue;
5528 }
5529
5530 // If the selection is empty and the cursor is in the leading whitespace before the
5531 // suggested indentation, then auto-indent the line.
5532 let cursor = selection.head();
5533 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5534 if let Some(suggested_indent) =
5535 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5536 {
5537 if cursor.column < suggested_indent.len
5538 && cursor.column <= current_indent.len
5539 && current_indent.len <= suggested_indent.len
5540 {
5541 selection.start = Point::new(cursor.row, suggested_indent.len);
5542 selection.end = selection.start;
5543 if row_delta == 0 {
5544 edits.extend(Buffer::edit_for_indent_size_adjustment(
5545 cursor.row,
5546 current_indent,
5547 suggested_indent,
5548 ));
5549 row_delta = suggested_indent.len - current_indent.len;
5550 }
5551 continue;
5552 }
5553 }
5554
5555 // Otherwise, insert a hard or soft tab.
5556 let settings = buffer.settings_at(cursor, cx);
5557 let tab_size = if settings.hard_tabs {
5558 IndentSize::tab()
5559 } else {
5560 let tab_size = settings.tab_size.get();
5561 let char_column = snapshot
5562 .text_for_range(Point::new(cursor.row, 0)..cursor)
5563 .flat_map(str::chars)
5564 .count()
5565 + row_delta as usize;
5566 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5567 IndentSize::spaces(chars_to_next_tab_stop)
5568 };
5569 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5570 selection.end = selection.start;
5571 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5572 row_delta += tab_size.len;
5573 }
5574
5575 self.transact(cx, |this, cx| {
5576 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5577 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5578 this.refresh_inline_completion(true, false, cx);
5579 });
5580 }
5581
5582 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5583 if self.read_only(cx) {
5584 return;
5585 }
5586 let mut selections = self.selections.all::<Point>(cx);
5587 let mut prev_edited_row = 0;
5588 let mut row_delta = 0;
5589 let mut edits = Vec::new();
5590 let buffer = self.buffer.read(cx);
5591 let snapshot = buffer.snapshot(cx);
5592 for selection in &mut selections {
5593 if selection.start.row != prev_edited_row {
5594 row_delta = 0;
5595 }
5596 prev_edited_row = selection.end.row;
5597
5598 row_delta =
5599 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5600 }
5601
5602 self.transact(cx, |this, cx| {
5603 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5604 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5605 });
5606 }
5607
5608 fn indent_selection(
5609 buffer: &MultiBuffer,
5610 snapshot: &MultiBufferSnapshot,
5611 selection: &mut Selection<Point>,
5612 edits: &mut Vec<(Range<Point>, String)>,
5613 delta_for_start_row: u32,
5614 cx: &AppContext,
5615 ) -> u32 {
5616 let settings = buffer.settings_at(selection.start, cx);
5617 let tab_size = settings.tab_size.get();
5618 let indent_kind = if settings.hard_tabs {
5619 IndentKind::Tab
5620 } else {
5621 IndentKind::Space
5622 };
5623 let mut start_row = selection.start.row;
5624 let mut end_row = selection.end.row + 1;
5625
5626 // If a selection ends at the beginning of a line, don't indent
5627 // that last line.
5628 if selection.end.column == 0 && selection.end.row > selection.start.row {
5629 end_row -= 1;
5630 }
5631
5632 // Avoid re-indenting a row that has already been indented by a
5633 // previous selection, but still update this selection's column
5634 // to reflect that indentation.
5635 if delta_for_start_row > 0 {
5636 start_row += 1;
5637 selection.start.column += delta_for_start_row;
5638 if selection.end.row == selection.start.row {
5639 selection.end.column += delta_for_start_row;
5640 }
5641 }
5642
5643 let mut delta_for_end_row = 0;
5644 let has_multiple_rows = start_row + 1 != end_row;
5645 for row in start_row..end_row {
5646 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5647 let indent_delta = match (current_indent.kind, indent_kind) {
5648 (IndentKind::Space, IndentKind::Space) => {
5649 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5650 IndentSize::spaces(columns_to_next_tab_stop)
5651 }
5652 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5653 (_, IndentKind::Tab) => IndentSize::tab(),
5654 };
5655
5656 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5657 0
5658 } else {
5659 selection.start.column
5660 };
5661 let row_start = Point::new(row, start);
5662 edits.push((
5663 row_start..row_start,
5664 indent_delta.chars().collect::<String>(),
5665 ));
5666
5667 // Update this selection's endpoints to reflect the indentation.
5668 if row == selection.start.row {
5669 selection.start.column += indent_delta.len;
5670 }
5671 if row == selection.end.row {
5672 selection.end.column += indent_delta.len;
5673 delta_for_end_row = indent_delta.len;
5674 }
5675 }
5676
5677 if selection.start.row == selection.end.row {
5678 delta_for_start_row + delta_for_end_row
5679 } else {
5680 delta_for_end_row
5681 }
5682 }
5683
5684 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5685 if self.read_only(cx) {
5686 return;
5687 }
5688 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5689 let selections = self.selections.all::<Point>(cx);
5690 let mut deletion_ranges = Vec::new();
5691 let mut last_outdent = None;
5692 {
5693 let buffer = self.buffer.read(cx);
5694 let snapshot = buffer.snapshot(cx);
5695 for selection in &selections {
5696 let settings = buffer.settings_at(selection.start, cx);
5697 let tab_size = settings.tab_size.get();
5698 let mut rows = selection.spanned_rows(false, &display_map);
5699
5700 // Avoid re-outdenting a row that has already been outdented by a
5701 // previous selection.
5702 if let Some(last_row) = last_outdent {
5703 if last_row == rows.start {
5704 rows.start = rows.start.next_row();
5705 }
5706 }
5707 let has_multiple_rows = rows.len() > 1;
5708 for row in rows.iter_rows() {
5709 let indent_size = snapshot.indent_size_for_line(row);
5710 if indent_size.len > 0 {
5711 let deletion_len = match indent_size.kind {
5712 IndentKind::Space => {
5713 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5714 if columns_to_prev_tab_stop == 0 {
5715 tab_size
5716 } else {
5717 columns_to_prev_tab_stop
5718 }
5719 }
5720 IndentKind::Tab => 1,
5721 };
5722 let start = if has_multiple_rows
5723 || deletion_len > selection.start.column
5724 || indent_size.len < selection.start.column
5725 {
5726 0
5727 } else {
5728 selection.start.column - deletion_len
5729 };
5730 deletion_ranges.push(
5731 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5732 );
5733 last_outdent = Some(row);
5734 }
5735 }
5736 }
5737 }
5738
5739 self.transact(cx, |this, cx| {
5740 this.buffer.update(cx, |buffer, cx| {
5741 let empty_str: Arc<str> = Arc::default();
5742 buffer.edit(
5743 deletion_ranges
5744 .into_iter()
5745 .map(|range| (range, empty_str.clone())),
5746 None,
5747 cx,
5748 );
5749 });
5750 let selections = this.selections.all::<usize>(cx);
5751 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5752 });
5753 }
5754
5755 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5756 if self.read_only(cx) {
5757 return;
5758 }
5759 let selections = self
5760 .selections
5761 .all::<usize>(cx)
5762 .into_iter()
5763 .map(|s| s.range());
5764
5765 self.transact(cx, |this, cx| {
5766 this.buffer.update(cx, |buffer, cx| {
5767 buffer.autoindent_ranges(selections, cx);
5768 });
5769 let selections = this.selections.all::<usize>(cx);
5770 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5771 });
5772 }
5773
5774 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5775 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5776 let selections = self.selections.all::<Point>(cx);
5777
5778 let mut new_cursors = Vec::new();
5779 let mut edit_ranges = Vec::new();
5780 let mut selections = selections.iter().peekable();
5781 while let Some(selection) = selections.next() {
5782 let mut rows = selection.spanned_rows(false, &display_map);
5783 let goal_display_column = selection.head().to_display_point(&display_map).column();
5784
5785 // Accumulate contiguous regions of rows that we want to delete.
5786 while let Some(next_selection) = selections.peek() {
5787 let next_rows = next_selection.spanned_rows(false, &display_map);
5788 if next_rows.start <= rows.end {
5789 rows.end = next_rows.end;
5790 selections.next().unwrap();
5791 } else {
5792 break;
5793 }
5794 }
5795
5796 let buffer = &display_map.buffer_snapshot;
5797 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5798 let edit_end;
5799 let cursor_buffer_row;
5800 if buffer.max_point().row >= rows.end.0 {
5801 // If there's a line after the range, delete the \n from the end of the row range
5802 // and position the cursor on the next line.
5803 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5804 cursor_buffer_row = rows.end;
5805 } else {
5806 // If there isn't a line after the range, delete the \n from the line before the
5807 // start of the row range and position the cursor there.
5808 edit_start = edit_start.saturating_sub(1);
5809 edit_end = buffer.len();
5810 cursor_buffer_row = rows.start.previous_row();
5811 }
5812
5813 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5814 *cursor.column_mut() =
5815 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5816
5817 new_cursors.push((
5818 selection.id,
5819 buffer.anchor_after(cursor.to_point(&display_map)),
5820 ));
5821 edit_ranges.push(edit_start..edit_end);
5822 }
5823
5824 self.transact(cx, |this, cx| {
5825 let buffer = this.buffer.update(cx, |buffer, cx| {
5826 let empty_str: Arc<str> = Arc::default();
5827 buffer.edit(
5828 edit_ranges
5829 .into_iter()
5830 .map(|range| (range, empty_str.clone())),
5831 None,
5832 cx,
5833 );
5834 buffer.snapshot(cx)
5835 });
5836 let new_selections = new_cursors
5837 .into_iter()
5838 .map(|(id, cursor)| {
5839 let cursor = cursor.to_point(&buffer);
5840 Selection {
5841 id,
5842 start: cursor,
5843 end: cursor,
5844 reversed: false,
5845 goal: SelectionGoal::None,
5846 }
5847 })
5848 .collect();
5849
5850 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5851 s.select(new_selections);
5852 });
5853 });
5854 }
5855
5856 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5857 if self.read_only(cx) {
5858 return;
5859 }
5860 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5861 for selection in self.selections.all::<Point>(cx) {
5862 let start = MultiBufferRow(selection.start.row);
5863 // Treat single line selections as if they include the next line. Otherwise this action
5864 // would do nothing for single line selections individual cursors.
5865 let end = if selection.start.row == selection.end.row {
5866 MultiBufferRow(selection.start.row + 1)
5867 } else {
5868 MultiBufferRow(selection.end.row)
5869 };
5870
5871 if let Some(last_row_range) = row_ranges.last_mut() {
5872 if start <= last_row_range.end {
5873 last_row_range.end = end;
5874 continue;
5875 }
5876 }
5877 row_ranges.push(start..end);
5878 }
5879
5880 let snapshot = self.buffer.read(cx).snapshot(cx);
5881 let mut cursor_positions = Vec::new();
5882 for row_range in &row_ranges {
5883 let anchor = snapshot.anchor_before(Point::new(
5884 row_range.end.previous_row().0,
5885 snapshot.line_len(row_range.end.previous_row()),
5886 ));
5887 cursor_positions.push(anchor..anchor);
5888 }
5889
5890 self.transact(cx, |this, cx| {
5891 for row_range in row_ranges.into_iter().rev() {
5892 for row in row_range.iter_rows().rev() {
5893 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5894 let next_line_row = row.next_row();
5895 let indent = snapshot.indent_size_for_line(next_line_row);
5896 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5897
5898 let replace = if snapshot.line_len(next_line_row) > indent.len {
5899 " "
5900 } else {
5901 ""
5902 };
5903
5904 this.buffer.update(cx, |buffer, cx| {
5905 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5906 });
5907 }
5908 }
5909
5910 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5911 s.select_anchor_ranges(cursor_positions)
5912 });
5913 });
5914 }
5915
5916 pub fn sort_lines_case_sensitive(
5917 &mut self,
5918 _: &SortLinesCaseSensitive,
5919 cx: &mut ViewContext<Self>,
5920 ) {
5921 self.manipulate_lines(cx, |lines| lines.sort())
5922 }
5923
5924 pub fn sort_lines_case_insensitive(
5925 &mut self,
5926 _: &SortLinesCaseInsensitive,
5927 cx: &mut ViewContext<Self>,
5928 ) {
5929 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5930 }
5931
5932 pub fn unique_lines_case_insensitive(
5933 &mut self,
5934 _: &UniqueLinesCaseInsensitive,
5935 cx: &mut ViewContext<Self>,
5936 ) {
5937 self.manipulate_lines(cx, |lines| {
5938 let mut seen = HashSet::default();
5939 lines.retain(|line| seen.insert(line.to_lowercase()));
5940 })
5941 }
5942
5943 pub fn unique_lines_case_sensitive(
5944 &mut self,
5945 _: &UniqueLinesCaseSensitive,
5946 cx: &mut ViewContext<Self>,
5947 ) {
5948 self.manipulate_lines(cx, |lines| {
5949 let mut seen = HashSet::default();
5950 lines.retain(|line| seen.insert(*line));
5951 })
5952 }
5953
5954 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5955 let mut revert_changes = HashMap::default();
5956 let snapshot = self.snapshot(cx);
5957 for hunk in hunks_for_ranges(
5958 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5959 &snapshot,
5960 ) {
5961 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5962 }
5963 if !revert_changes.is_empty() {
5964 self.transact(cx, |editor, cx| {
5965 editor.revert(revert_changes, cx);
5966 });
5967 }
5968 }
5969
5970 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5971 let Some(project) = self.project.clone() else {
5972 return;
5973 };
5974 self.reload(project, cx).detach_and_notify_err(cx);
5975 }
5976
5977 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5978 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5979 if !revert_changes.is_empty() {
5980 self.transact(cx, |editor, cx| {
5981 editor.revert(revert_changes, cx);
5982 });
5983 }
5984 }
5985
5986 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5987 let snapshot = self.buffer.read(cx).read(cx);
5988 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5989 drop(snapshot);
5990 let mut revert_changes = HashMap::default();
5991 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5992 if !revert_changes.is_empty() {
5993 self.revert(revert_changes, cx)
5994 }
5995 }
5996 }
5997
5998 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5999 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6000 let project_path = buffer.read(cx).project_path(cx)?;
6001 let project = self.project.as_ref()?.read(cx);
6002 let entry = project.entry_for_path(&project_path, cx)?;
6003 let parent = match &entry.canonical_path {
6004 Some(canonical_path) => canonical_path.to_path_buf(),
6005 None => project.absolute_path(&project_path, cx)?,
6006 }
6007 .parent()?
6008 .to_path_buf();
6009 Some(parent)
6010 }) {
6011 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6012 }
6013 }
6014
6015 fn gather_revert_changes(
6016 &mut self,
6017 selections: &[Selection<Point>],
6018 cx: &mut ViewContext<'_, Editor>,
6019 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6020 let mut revert_changes = HashMap::default();
6021 let snapshot = self.snapshot(cx);
6022 for hunk in hunks_for_selections(&snapshot, selections) {
6023 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6024 }
6025 revert_changes
6026 }
6027
6028 pub fn prepare_revert_change(
6029 &mut self,
6030 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6031 hunk: &MultiBufferDiffHunk,
6032 cx: &AppContext,
6033 ) -> Option<()> {
6034 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6035 let buffer = buffer.read(cx);
6036 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6037 let original_text = change_set
6038 .read(cx)
6039 .base_text
6040 .as_ref()?
6041 .read(cx)
6042 .as_rope()
6043 .slice(hunk.diff_base_byte_range.clone());
6044 let buffer_snapshot = buffer.snapshot();
6045 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6046 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6047 probe
6048 .0
6049 .start
6050 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6051 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6052 }) {
6053 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6054 Some(())
6055 } else {
6056 None
6057 }
6058 }
6059
6060 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6061 self.manipulate_lines(cx, |lines| lines.reverse())
6062 }
6063
6064 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6065 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6066 }
6067
6068 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6069 where
6070 Fn: FnMut(&mut Vec<&str>),
6071 {
6072 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6073 let buffer = self.buffer.read(cx).snapshot(cx);
6074
6075 let mut edits = Vec::new();
6076
6077 let selections = self.selections.all::<Point>(cx);
6078 let mut selections = selections.iter().peekable();
6079 let mut contiguous_row_selections = Vec::new();
6080 let mut new_selections = Vec::new();
6081 let mut added_lines = 0;
6082 let mut removed_lines = 0;
6083
6084 while let Some(selection) = selections.next() {
6085 let (start_row, end_row) = consume_contiguous_rows(
6086 &mut contiguous_row_selections,
6087 selection,
6088 &display_map,
6089 &mut selections,
6090 );
6091
6092 let start_point = Point::new(start_row.0, 0);
6093 let end_point = Point::new(
6094 end_row.previous_row().0,
6095 buffer.line_len(end_row.previous_row()),
6096 );
6097 let text = buffer
6098 .text_for_range(start_point..end_point)
6099 .collect::<String>();
6100
6101 let mut lines = text.split('\n').collect_vec();
6102
6103 let lines_before = lines.len();
6104 callback(&mut lines);
6105 let lines_after = lines.len();
6106
6107 edits.push((start_point..end_point, lines.join("\n")));
6108
6109 // Selections must change based on added and removed line count
6110 let start_row =
6111 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6112 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6113 new_selections.push(Selection {
6114 id: selection.id,
6115 start: start_row,
6116 end: end_row,
6117 goal: SelectionGoal::None,
6118 reversed: selection.reversed,
6119 });
6120
6121 if lines_after > lines_before {
6122 added_lines += lines_after - lines_before;
6123 } else if lines_before > lines_after {
6124 removed_lines += lines_before - lines_after;
6125 }
6126 }
6127
6128 self.transact(cx, |this, cx| {
6129 let buffer = this.buffer.update(cx, |buffer, cx| {
6130 buffer.edit(edits, None, cx);
6131 buffer.snapshot(cx)
6132 });
6133
6134 // Recalculate offsets on newly edited buffer
6135 let new_selections = new_selections
6136 .iter()
6137 .map(|s| {
6138 let start_point = Point::new(s.start.0, 0);
6139 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6140 Selection {
6141 id: s.id,
6142 start: buffer.point_to_offset(start_point),
6143 end: buffer.point_to_offset(end_point),
6144 goal: s.goal,
6145 reversed: s.reversed,
6146 }
6147 })
6148 .collect();
6149
6150 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6151 s.select(new_selections);
6152 });
6153
6154 this.request_autoscroll(Autoscroll::fit(), cx);
6155 });
6156 }
6157
6158 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6159 self.manipulate_text(cx, |text| text.to_uppercase())
6160 }
6161
6162 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6163 self.manipulate_text(cx, |text| text.to_lowercase())
6164 }
6165
6166 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6167 self.manipulate_text(cx, |text| {
6168 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6169 // https://github.com/rutrum/convert-case/issues/16
6170 text.split('\n')
6171 .map(|line| line.to_case(Case::Title))
6172 .join("\n")
6173 })
6174 }
6175
6176 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6177 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6178 }
6179
6180 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6181 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6182 }
6183
6184 pub fn convert_to_upper_camel_case(
6185 &mut self,
6186 _: &ConvertToUpperCamelCase,
6187 cx: &mut ViewContext<Self>,
6188 ) {
6189 self.manipulate_text(cx, |text| {
6190 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6191 // https://github.com/rutrum/convert-case/issues/16
6192 text.split('\n')
6193 .map(|line| line.to_case(Case::UpperCamel))
6194 .join("\n")
6195 })
6196 }
6197
6198 pub fn convert_to_lower_camel_case(
6199 &mut self,
6200 _: &ConvertToLowerCamelCase,
6201 cx: &mut ViewContext<Self>,
6202 ) {
6203 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6204 }
6205
6206 pub fn convert_to_opposite_case(
6207 &mut self,
6208 _: &ConvertToOppositeCase,
6209 cx: &mut ViewContext<Self>,
6210 ) {
6211 self.manipulate_text(cx, |text| {
6212 text.chars()
6213 .fold(String::with_capacity(text.len()), |mut t, c| {
6214 if c.is_uppercase() {
6215 t.extend(c.to_lowercase());
6216 } else {
6217 t.extend(c.to_uppercase());
6218 }
6219 t
6220 })
6221 })
6222 }
6223
6224 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6225 where
6226 Fn: FnMut(&str) -> String,
6227 {
6228 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6229 let buffer = self.buffer.read(cx).snapshot(cx);
6230
6231 let mut new_selections = Vec::new();
6232 let mut edits = Vec::new();
6233 let mut selection_adjustment = 0i32;
6234
6235 for selection in self.selections.all::<usize>(cx) {
6236 let selection_is_empty = selection.is_empty();
6237
6238 let (start, end) = if selection_is_empty {
6239 let word_range = movement::surrounding_word(
6240 &display_map,
6241 selection.start.to_display_point(&display_map),
6242 );
6243 let start = word_range.start.to_offset(&display_map, Bias::Left);
6244 let end = word_range.end.to_offset(&display_map, Bias::Left);
6245 (start, end)
6246 } else {
6247 (selection.start, selection.end)
6248 };
6249
6250 let text = buffer.text_for_range(start..end).collect::<String>();
6251 let old_length = text.len() as i32;
6252 let text = callback(&text);
6253
6254 new_selections.push(Selection {
6255 start: (start as i32 - selection_adjustment) as usize,
6256 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6257 goal: SelectionGoal::None,
6258 ..selection
6259 });
6260
6261 selection_adjustment += old_length - text.len() as i32;
6262
6263 edits.push((start..end, text));
6264 }
6265
6266 self.transact(cx, |this, cx| {
6267 this.buffer.update(cx, |buffer, cx| {
6268 buffer.edit(edits, None, cx);
6269 });
6270
6271 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6272 s.select(new_selections);
6273 });
6274
6275 this.request_autoscroll(Autoscroll::fit(), cx);
6276 });
6277 }
6278
6279 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6280 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6281 let buffer = &display_map.buffer_snapshot;
6282 let selections = self.selections.all::<Point>(cx);
6283
6284 let mut edits = Vec::new();
6285 let mut selections_iter = selections.iter().peekable();
6286 while let Some(selection) = selections_iter.next() {
6287 let mut rows = selection.spanned_rows(false, &display_map);
6288 // duplicate line-wise
6289 if whole_lines || selection.start == selection.end {
6290 // Avoid duplicating the same lines twice.
6291 while let Some(next_selection) = selections_iter.peek() {
6292 let next_rows = next_selection.spanned_rows(false, &display_map);
6293 if next_rows.start < rows.end {
6294 rows.end = next_rows.end;
6295 selections_iter.next().unwrap();
6296 } else {
6297 break;
6298 }
6299 }
6300
6301 // Copy the text from the selected row region and splice it either at the start
6302 // or end of the region.
6303 let start = Point::new(rows.start.0, 0);
6304 let end = Point::new(
6305 rows.end.previous_row().0,
6306 buffer.line_len(rows.end.previous_row()),
6307 );
6308 let text = buffer
6309 .text_for_range(start..end)
6310 .chain(Some("\n"))
6311 .collect::<String>();
6312 let insert_location = if upwards {
6313 Point::new(rows.end.0, 0)
6314 } else {
6315 start
6316 };
6317 edits.push((insert_location..insert_location, text));
6318 } else {
6319 // duplicate character-wise
6320 let start = selection.start;
6321 let end = selection.end;
6322 let text = buffer.text_for_range(start..end).collect::<String>();
6323 edits.push((selection.end..selection.end, text));
6324 }
6325 }
6326
6327 self.transact(cx, |this, cx| {
6328 this.buffer.update(cx, |buffer, cx| {
6329 buffer.edit(edits, None, cx);
6330 });
6331
6332 this.request_autoscroll(Autoscroll::fit(), cx);
6333 });
6334 }
6335
6336 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6337 self.duplicate(true, true, cx);
6338 }
6339
6340 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6341 self.duplicate(false, true, cx);
6342 }
6343
6344 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6345 self.duplicate(false, false, cx);
6346 }
6347
6348 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6349 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6350 let buffer = self.buffer.read(cx).snapshot(cx);
6351
6352 let mut edits = Vec::new();
6353 let mut unfold_ranges = Vec::new();
6354 let mut refold_creases = Vec::new();
6355
6356 let selections = self.selections.all::<Point>(cx);
6357 let mut selections = selections.iter().peekable();
6358 let mut contiguous_row_selections = Vec::new();
6359 let mut new_selections = Vec::new();
6360
6361 while let Some(selection) = selections.next() {
6362 // Find all the selections that span a contiguous row range
6363 let (start_row, end_row) = consume_contiguous_rows(
6364 &mut contiguous_row_selections,
6365 selection,
6366 &display_map,
6367 &mut selections,
6368 );
6369
6370 // Move the text spanned by the row range to be before the line preceding the row range
6371 if start_row.0 > 0 {
6372 let range_to_move = Point::new(
6373 start_row.previous_row().0,
6374 buffer.line_len(start_row.previous_row()),
6375 )
6376 ..Point::new(
6377 end_row.previous_row().0,
6378 buffer.line_len(end_row.previous_row()),
6379 );
6380 let insertion_point = display_map
6381 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6382 .0;
6383
6384 // Don't move lines across excerpts
6385 if buffer
6386 .excerpt_boundaries_in_range((
6387 Bound::Excluded(insertion_point),
6388 Bound::Included(range_to_move.end),
6389 ))
6390 .next()
6391 .is_none()
6392 {
6393 let text = buffer
6394 .text_for_range(range_to_move.clone())
6395 .flat_map(|s| s.chars())
6396 .skip(1)
6397 .chain(['\n'])
6398 .collect::<String>();
6399
6400 edits.push((
6401 buffer.anchor_after(range_to_move.start)
6402 ..buffer.anchor_before(range_to_move.end),
6403 String::new(),
6404 ));
6405 let insertion_anchor = buffer.anchor_after(insertion_point);
6406 edits.push((insertion_anchor..insertion_anchor, text));
6407
6408 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6409
6410 // Move selections up
6411 new_selections.extend(contiguous_row_selections.drain(..).map(
6412 |mut selection| {
6413 selection.start.row -= row_delta;
6414 selection.end.row -= row_delta;
6415 selection
6416 },
6417 ));
6418
6419 // Move folds up
6420 unfold_ranges.push(range_to_move.clone());
6421 for fold in display_map.folds_in_range(
6422 buffer.anchor_before(range_to_move.start)
6423 ..buffer.anchor_after(range_to_move.end),
6424 ) {
6425 let mut start = fold.range.start.to_point(&buffer);
6426 let mut end = fold.range.end.to_point(&buffer);
6427 start.row -= row_delta;
6428 end.row -= row_delta;
6429 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6430 }
6431 }
6432 }
6433
6434 // If we didn't move line(s), preserve the existing selections
6435 new_selections.append(&mut contiguous_row_selections);
6436 }
6437
6438 self.transact(cx, |this, cx| {
6439 this.unfold_ranges(&unfold_ranges, true, true, cx);
6440 this.buffer.update(cx, |buffer, cx| {
6441 for (range, text) in edits {
6442 buffer.edit([(range, text)], None, cx);
6443 }
6444 });
6445 this.fold_creases(refold_creases, true, cx);
6446 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6447 s.select(new_selections);
6448 })
6449 });
6450 }
6451
6452 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6453 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6454 let buffer = self.buffer.read(cx).snapshot(cx);
6455
6456 let mut edits = Vec::new();
6457 let mut unfold_ranges = Vec::new();
6458 let mut refold_creases = Vec::new();
6459
6460 let selections = self.selections.all::<Point>(cx);
6461 let mut selections = selections.iter().peekable();
6462 let mut contiguous_row_selections = Vec::new();
6463 let mut new_selections = Vec::new();
6464
6465 while let Some(selection) = selections.next() {
6466 // Find all the selections that span a contiguous row range
6467 let (start_row, end_row) = consume_contiguous_rows(
6468 &mut contiguous_row_selections,
6469 selection,
6470 &display_map,
6471 &mut selections,
6472 );
6473
6474 // Move the text spanned by the row range to be after the last line of the row range
6475 if end_row.0 <= buffer.max_point().row {
6476 let range_to_move =
6477 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6478 let insertion_point = display_map
6479 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6480 .0;
6481
6482 // Don't move lines across excerpt boundaries
6483 if buffer
6484 .excerpt_boundaries_in_range((
6485 Bound::Excluded(range_to_move.start),
6486 Bound::Included(insertion_point),
6487 ))
6488 .next()
6489 .is_none()
6490 {
6491 let mut text = String::from("\n");
6492 text.extend(buffer.text_for_range(range_to_move.clone()));
6493 text.pop(); // Drop trailing newline
6494 edits.push((
6495 buffer.anchor_after(range_to_move.start)
6496 ..buffer.anchor_before(range_to_move.end),
6497 String::new(),
6498 ));
6499 let insertion_anchor = buffer.anchor_after(insertion_point);
6500 edits.push((insertion_anchor..insertion_anchor, text));
6501
6502 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6503
6504 // Move selections down
6505 new_selections.extend(contiguous_row_selections.drain(..).map(
6506 |mut selection| {
6507 selection.start.row += row_delta;
6508 selection.end.row += row_delta;
6509 selection
6510 },
6511 ));
6512
6513 // Move folds down
6514 unfold_ranges.push(range_to_move.clone());
6515 for fold in display_map.folds_in_range(
6516 buffer.anchor_before(range_to_move.start)
6517 ..buffer.anchor_after(range_to_move.end),
6518 ) {
6519 let mut start = fold.range.start.to_point(&buffer);
6520 let mut end = fold.range.end.to_point(&buffer);
6521 start.row += row_delta;
6522 end.row += row_delta;
6523 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6524 }
6525 }
6526 }
6527
6528 // If we didn't move line(s), preserve the existing selections
6529 new_selections.append(&mut contiguous_row_selections);
6530 }
6531
6532 self.transact(cx, |this, cx| {
6533 this.unfold_ranges(&unfold_ranges, true, true, cx);
6534 this.buffer.update(cx, |buffer, cx| {
6535 for (range, text) in edits {
6536 buffer.edit([(range, text)], None, cx);
6537 }
6538 });
6539 this.fold_creases(refold_creases, true, cx);
6540 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6541 });
6542 }
6543
6544 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6545 let text_layout_details = &self.text_layout_details(cx);
6546 self.transact(cx, |this, cx| {
6547 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6548 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6549 let line_mode = s.line_mode;
6550 s.move_with(|display_map, selection| {
6551 if !selection.is_empty() || line_mode {
6552 return;
6553 }
6554
6555 let mut head = selection.head();
6556 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6557 if head.column() == display_map.line_len(head.row()) {
6558 transpose_offset = display_map
6559 .buffer_snapshot
6560 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6561 }
6562
6563 if transpose_offset == 0 {
6564 return;
6565 }
6566
6567 *head.column_mut() += 1;
6568 head = display_map.clip_point(head, Bias::Right);
6569 let goal = SelectionGoal::HorizontalPosition(
6570 display_map
6571 .x_for_display_point(head, text_layout_details)
6572 .into(),
6573 );
6574 selection.collapse_to(head, goal);
6575
6576 let transpose_start = display_map
6577 .buffer_snapshot
6578 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6579 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6580 let transpose_end = display_map
6581 .buffer_snapshot
6582 .clip_offset(transpose_offset + 1, Bias::Right);
6583 if let Some(ch) =
6584 display_map.buffer_snapshot.chars_at(transpose_start).next()
6585 {
6586 edits.push((transpose_start..transpose_offset, String::new()));
6587 edits.push((transpose_end..transpose_end, ch.to_string()));
6588 }
6589 }
6590 });
6591 edits
6592 });
6593 this.buffer
6594 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6595 let selections = this.selections.all::<usize>(cx);
6596 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6597 s.select(selections);
6598 });
6599 });
6600 }
6601
6602 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6603 self.rewrap_impl(IsVimMode::No, cx)
6604 }
6605
6606 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6607 let buffer = self.buffer.read(cx).snapshot(cx);
6608 let selections = self.selections.all::<Point>(cx);
6609 let mut selections = selections.iter().peekable();
6610
6611 let mut edits = Vec::new();
6612 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6613
6614 while let Some(selection) = selections.next() {
6615 let mut start_row = selection.start.row;
6616 let mut end_row = selection.end.row;
6617
6618 // Skip selections that overlap with a range that has already been rewrapped.
6619 let selection_range = start_row..end_row;
6620 if rewrapped_row_ranges
6621 .iter()
6622 .any(|range| range.overlaps(&selection_range))
6623 {
6624 continue;
6625 }
6626
6627 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6628
6629 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6630 match language_scope.language_name().0.as_ref() {
6631 "Markdown" | "Plain Text" => {
6632 should_rewrap = true;
6633 }
6634 _ => {}
6635 }
6636 }
6637
6638 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6639
6640 // Since not all lines in the selection may be at the same indent
6641 // level, choose the indent size that is the most common between all
6642 // of the lines.
6643 //
6644 // If there is a tie, we use the deepest indent.
6645 let (indent_size, indent_end) = {
6646 let mut indent_size_occurrences = HashMap::default();
6647 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6648
6649 for row in start_row..=end_row {
6650 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6651 rows_by_indent_size.entry(indent).or_default().push(row);
6652 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6653 }
6654
6655 let indent_size = indent_size_occurrences
6656 .into_iter()
6657 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6658 .map(|(indent, _)| indent)
6659 .unwrap_or_default();
6660 let row = rows_by_indent_size[&indent_size][0];
6661 let indent_end = Point::new(row, indent_size.len);
6662
6663 (indent_size, indent_end)
6664 };
6665
6666 let mut line_prefix = indent_size.chars().collect::<String>();
6667
6668 if let Some(comment_prefix) =
6669 buffer
6670 .language_scope_at(selection.head())
6671 .and_then(|language| {
6672 language
6673 .line_comment_prefixes()
6674 .iter()
6675 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6676 .cloned()
6677 })
6678 {
6679 line_prefix.push_str(&comment_prefix);
6680 should_rewrap = true;
6681 }
6682
6683 if !should_rewrap {
6684 continue;
6685 }
6686
6687 if selection.is_empty() {
6688 'expand_upwards: while start_row > 0 {
6689 let prev_row = start_row - 1;
6690 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6691 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6692 {
6693 start_row = prev_row;
6694 } else {
6695 break 'expand_upwards;
6696 }
6697 }
6698
6699 'expand_downwards: while end_row < buffer.max_point().row {
6700 let next_row = end_row + 1;
6701 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6702 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6703 {
6704 end_row = next_row;
6705 } else {
6706 break 'expand_downwards;
6707 }
6708 }
6709 }
6710
6711 let start = Point::new(start_row, 0);
6712 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6713 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6714 let Some(lines_without_prefixes) = selection_text
6715 .lines()
6716 .map(|line| {
6717 line.strip_prefix(&line_prefix)
6718 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6719 .ok_or_else(|| {
6720 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6721 })
6722 })
6723 .collect::<Result<Vec<_>, _>>()
6724 .log_err()
6725 else {
6726 continue;
6727 };
6728
6729 let wrap_column = buffer
6730 .settings_at(Point::new(start_row, 0), cx)
6731 .preferred_line_length as usize;
6732 let wrapped_text = wrap_with_prefix(
6733 line_prefix,
6734 lines_without_prefixes.join(" "),
6735 wrap_column,
6736 tab_size,
6737 );
6738
6739 // TODO: should always use char-based diff while still supporting cursor behavior that
6740 // matches vim.
6741 let diff = match is_vim_mode {
6742 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6743 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6744 };
6745 let mut offset = start.to_offset(&buffer);
6746 let mut moved_since_edit = true;
6747
6748 for change in diff.iter_all_changes() {
6749 let value = change.value();
6750 match change.tag() {
6751 ChangeTag::Equal => {
6752 offset += value.len();
6753 moved_since_edit = true;
6754 }
6755 ChangeTag::Delete => {
6756 let start = buffer.anchor_after(offset);
6757 let end = buffer.anchor_before(offset + value.len());
6758
6759 if moved_since_edit {
6760 edits.push((start..end, String::new()));
6761 } else {
6762 edits.last_mut().unwrap().0.end = end;
6763 }
6764
6765 offset += value.len();
6766 moved_since_edit = false;
6767 }
6768 ChangeTag::Insert => {
6769 if moved_since_edit {
6770 let anchor = buffer.anchor_after(offset);
6771 edits.push((anchor..anchor, value.to_string()));
6772 } else {
6773 edits.last_mut().unwrap().1.push_str(value);
6774 }
6775
6776 moved_since_edit = false;
6777 }
6778 }
6779 }
6780
6781 rewrapped_row_ranges.push(start_row..=end_row);
6782 }
6783
6784 self.buffer
6785 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6786 }
6787
6788 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6789 let mut text = String::new();
6790 let buffer = self.buffer.read(cx).snapshot(cx);
6791 let mut selections = self.selections.all::<Point>(cx);
6792 let mut clipboard_selections = Vec::with_capacity(selections.len());
6793 {
6794 let max_point = buffer.max_point();
6795 let mut is_first = true;
6796 for selection in &mut selections {
6797 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6798 if is_entire_line {
6799 selection.start = Point::new(selection.start.row, 0);
6800 if !selection.is_empty() && selection.end.column == 0 {
6801 selection.end = cmp::min(max_point, selection.end);
6802 } else {
6803 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6804 }
6805 selection.goal = SelectionGoal::None;
6806 }
6807 if is_first {
6808 is_first = false;
6809 } else {
6810 text += "\n";
6811 }
6812 let mut len = 0;
6813 for chunk in buffer.text_for_range(selection.start..selection.end) {
6814 text.push_str(chunk);
6815 len += chunk.len();
6816 }
6817 clipboard_selections.push(ClipboardSelection {
6818 len,
6819 is_entire_line,
6820 first_line_indent: buffer
6821 .indent_size_for_line(MultiBufferRow(selection.start.row))
6822 .len,
6823 });
6824 }
6825 }
6826
6827 self.transact(cx, |this, cx| {
6828 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6829 s.select(selections);
6830 });
6831 this.insert("", cx);
6832 });
6833 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6834 }
6835
6836 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6837 let item = self.cut_common(cx);
6838 cx.write_to_clipboard(item);
6839 }
6840
6841 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6842 self.change_selections(None, cx, |s| {
6843 s.move_with(|snapshot, sel| {
6844 if sel.is_empty() {
6845 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6846 }
6847 });
6848 });
6849 let item = self.cut_common(cx);
6850 cx.set_global(KillRing(item))
6851 }
6852
6853 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6854 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6855 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6856 (kill_ring.text().to_string(), kill_ring.metadata_json())
6857 } else {
6858 return;
6859 }
6860 } else {
6861 return;
6862 };
6863 self.do_paste(&text, metadata, false, cx);
6864 }
6865
6866 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6867 let selections = self.selections.all::<Point>(cx);
6868 let buffer = self.buffer.read(cx).read(cx);
6869 let mut text = String::new();
6870
6871 let mut clipboard_selections = Vec::with_capacity(selections.len());
6872 {
6873 let max_point = buffer.max_point();
6874 let mut is_first = true;
6875 for selection in selections.iter() {
6876 let mut start = selection.start;
6877 let mut end = selection.end;
6878 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6879 if is_entire_line {
6880 start = Point::new(start.row, 0);
6881 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6882 }
6883 if is_first {
6884 is_first = false;
6885 } else {
6886 text += "\n";
6887 }
6888 let mut len = 0;
6889 for chunk in buffer.text_for_range(start..end) {
6890 text.push_str(chunk);
6891 len += chunk.len();
6892 }
6893 clipboard_selections.push(ClipboardSelection {
6894 len,
6895 is_entire_line,
6896 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6897 });
6898 }
6899 }
6900
6901 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6902 text,
6903 clipboard_selections,
6904 ));
6905 }
6906
6907 pub fn do_paste(
6908 &mut self,
6909 text: &String,
6910 clipboard_selections: Option<Vec<ClipboardSelection>>,
6911 handle_entire_lines: bool,
6912 cx: &mut ViewContext<Self>,
6913 ) {
6914 if self.read_only(cx) {
6915 return;
6916 }
6917
6918 let clipboard_text = Cow::Borrowed(text);
6919
6920 self.transact(cx, |this, cx| {
6921 if let Some(mut clipboard_selections) = clipboard_selections {
6922 let old_selections = this.selections.all::<usize>(cx);
6923 let all_selections_were_entire_line =
6924 clipboard_selections.iter().all(|s| s.is_entire_line);
6925 let first_selection_indent_column =
6926 clipboard_selections.first().map(|s| s.first_line_indent);
6927 if clipboard_selections.len() != old_selections.len() {
6928 clipboard_selections.drain(..);
6929 }
6930 let cursor_offset = this.selections.last::<usize>(cx).head();
6931 let mut auto_indent_on_paste = true;
6932
6933 this.buffer.update(cx, |buffer, cx| {
6934 let snapshot = buffer.read(cx);
6935 auto_indent_on_paste =
6936 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6937
6938 let mut start_offset = 0;
6939 let mut edits = Vec::new();
6940 let mut original_indent_columns = Vec::new();
6941 for (ix, selection) in old_selections.iter().enumerate() {
6942 let to_insert;
6943 let entire_line;
6944 let original_indent_column;
6945 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6946 let end_offset = start_offset + clipboard_selection.len;
6947 to_insert = &clipboard_text[start_offset..end_offset];
6948 entire_line = clipboard_selection.is_entire_line;
6949 start_offset = end_offset + 1;
6950 original_indent_column = Some(clipboard_selection.first_line_indent);
6951 } else {
6952 to_insert = clipboard_text.as_str();
6953 entire_line = all_selections_were_entire_line;
6954 original_indent_column = first_selection_indent_column
6955 }
6956
6957 // If the corresponding selection was empty when this slice of the
6958 // clipboard text was written, then the entire line containing the
6959 // selection was copied. If this selection is also currently empty,
6960 // then paste the line before the current line of the buffer.
6961 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6962 let column = selection.start.to_point(&snapshot).column as usize;
6963 let line_start = selection.start - column;
6964 line_start..line_start
6965 } else {
6966 selection.range()
6967 };
6968
6969 edits.push((range, to_insert));
6970 original_indent_columns.extend(original_indent_column);
6971 }
6972 drop(snapshot);
6973
6974 buffer.edit(
6975 edits,
6976 if auto_indent_on_paste {
6977 Some(AutoindentMode::Block {
6978 original_indent_columns,
6979 })
6980 } else {
6981 None
6982 },
6983 cx,
6984 );
6985 });
6986
6987 let selections = this.selections.all::<usize>(cx);
6988 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6989 } else {
6990 this.insert(&clipboard_text, cx);
6991 }
6992 });
6993 }
6994
6995 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6996 if let Some(item) = cx.read_from_clipboard() {
6997 let entries = item.entries();
6998
6999 match entries.first() {
7000 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7001 // of all the pasted entries.
7002 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7003 .do_paste(
7004 clipboard_string.text(),
7005 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7006 true,
7007 cx,
7008 ),
7009 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7010 }
7011 }
7012 }
7013
7014 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7015 if self.read_only(cx) {
7016 return;
7017 }
7018
7019 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7020 if let Some((selections, _)) =
7021 self.selection_history.transaction(transaction_id).cloned()
7022 {
7023 self.change_selections(None, cx, |s| {
7024 s.select_anchors(selections.to_vec());
7025 });
7026 }
7027 self.request_autoscroll(Autoscroll::fit(), cx);
7028 self.unmark_text(cx);
7029 self.refresh_inline_completion(true, false, cx);
7030 cx.emit(EditorEvent::Edited { transaction_id });
7031 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7032 }
7033 }
7034
7035 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7036 if self.read_only(cx) {
7037 return;
7038 }
7039
7040 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7041 if let Some((_, Some(selections))) =
7042 self.selection_history.transaction(transaction_id).cloned()
7043 {
7044 self.change_selections(None, cx, |s| {
7045 s.select_anchors(selections.to_vec());
7046 });
7047 }
7048 self.request_autoscroll(Autoscroll::fit(), cx);
7049 self.unmark_text(cx);
7050 self.refresh_inline_completion(true, false, cx);
7051 cx.emit(EditorEvent::Edited { transaction_id });
7052 }
7053 }
7054
7055 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7056 self.buffer
7057 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7058 }
7059
7060 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7061 self.buffer
7062 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7063 }
7064
7065 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7066 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7067 let line_mode = s.line_mode;
7068 s.move_with(|map, selection| {
7069 let cursor = if selection.is_empty() && !line_mode {
7070 movement::left(map, selection.start)
7071 } else {
7072 selection.start
7073 };
7074 selection.collapse_to(cursor, SelectionGoal::None);
7075 });
7076 })
7077 }
7078
7079 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7080 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7081 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7082 })
7083 }
7084
7085 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7086 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7087 let line_mode = s.line_mode;
7088 s.move_with(|map, selection| {
7089 let cursor = if selection.is_empty() && !line_mode {
7090 movement::right(map, selection.end)
7091 } else {
7092 selection.end
7093 };
7094 selection.collapse_to(cursor, SelectionGoal::None)
7095 });
7096 })
7097 }
7098
7099 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7100 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7101 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7102 })
7103 }
7104
7105 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7106 if self.take_rename(true, cx).is_some() {
7107 return;
7108 }
7109
7110 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7111 cx.propagate();
7112 return;
7113 }
7114
7115 let text_layout_details = &self.text_layout_details(cx);
7116 let selection_count = self.selections.count();
7117 let first_selection = self.selections.first_anchor();
7118
7119 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7120 let line_mode = s.line_mode;
7121 s.move_with(|map, selection| {
7122 if !selection.is_empty() && !line_mode {
7123 selection.goal = SelectionGoal::None;
7124 }
7125 let (cursor, goal) = movement::up(
7126 map,
7127 selection.start,
7128 selection.goal,
7129 false,
7130 text_layout_details,
7131 );
7132 selection.collapse_to(cursor, goal);
7133 });
7134 });
7135
7136 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7137 {
7138 cx.propagate();
7139 }
7140 }
7141
7142 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7143 if self.take_rename(true, cx).is_some() {
7144 return;
7145 }
7146
7147 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7148 cx.propagate();
7149 return;
7150 }
7151
7152 let text_layout_details = &self.text_layout_details(cx);
7153
7154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7155 let line_mode = s.line_mode;
7156 s.move_with(|map, selection| {
7157 if !selection.is_empty() && !line_mode {
7158 selection.goal = SelectionGoal::None;
7159 }
7160 let (cursor, goal) = movement::up_by_rows(
7161 map,
7162 selection.start,
7163 action.lines,
7164 selection.goal,
7165 false,
7166 text_layout_details,
7167 );
7168 selection.collapse_to(cursor, goal);
7169 });
7170 })
7171 }
7172
7173 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7174 if self.take_rename(true, cx).is_some() {
7175 return;
7176 }
7177
7178 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7179 cx.propagate();
7180 return;
7181 }
7182
7183 let text_layout_details = &self.text_layout_details(cx);
7184
7185 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7186 let line_mode = s.line_mode;
7187 s.move_with(|map, selection| {
7188 if !selection.is_empty() && !line_mode {
7189 selection.goal = SelectionGoal::None;
7190 }
7191 let (cursor, goal) = movement::down_by_rows(
7192 map,
7193 selection.start,
7194 action.lines,
7195 selection.goal,
7196 false,
7197 text_layout_details,
7198 );
7199 selection.collapse_to(cursor, goal);
7200 });
7201 })
7202 }
7203
7204 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7205 let text_layout_details = &self.text_layout_details(cx);
7206 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7207 s.move_heads_with(|map, head, goal| {
7208 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7209 })
7210 })
7211 }
7212
7213 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7214 let text_layout_details = &self.text_layout_details(cx);
7215 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7216 s.move_heads_with(|map, head, goal| {
7217 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7218 })
7219 })
7220 }
7221
7222 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7223 let Some(row_count) = self.visible_row_count() else {
7224 return;
7225 };
7226
7227 let text_layout_details = &self.text_layout_details(cx);
7228
7229 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7230 s.move_heads_with(|map, head, goal| {
7231 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7232 })
7233 })
7234 }
7235
7236 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7237 if self.take_rename(true, cx).is_some() {
7238 return;
7239 }
7240
7241 if self
7242 .context_menu
7243 .borrow_mut()
7244 .as_mut()
7245 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7246 .unwrap_or(false)
7247 {
7248 return;
7249 }
7250
7251 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7252 cx.propagate();
7253 return;
7254 }
7255
7256 let Some(row_count) = self.visible_row_count() else {
7257 return;
7258 };
7259
7260 let autoscroll = if action.center_cursor {
7261 Autoscroll::center()
7262 } else {
7263 Autoscroll::fit()
7264 };
7265
7266 let text_layout_details = &self.text_layout_details(cx);
7267
7268 self.change_selections(Some(autoscroll), cx, |s| {
7269 let line_mode = s.line_mode;
7270 s.move_with(|map, selection| {
7271 if !selection.is_empty() && !line_mode {
7272 selection.goal = SelectionGoal::None;
7273 }
7274 let (cursor, goal) = movement::up_by_rows(
7275 map,
7276 selection.end,
7277 row_count,
7278 selection.goal,
7279 false,
7280 text_layout_details,
7281 );
7282 selection.collapse_to(cursor, goal);
7283 });
7284 });
7285 }
7286
7287 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7288 let text_layout_details = &self.text_layout_details(cx);
7289 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7290 s.move_heads_with(|map, head, goal| {
7291 movement::up(map, head, goal, false, text_layout_details)
7292 })
7293 })
7294 }
7295
7296 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7297 self.take_rename(true, cx);
7298
7299 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7300 cx.propagate();
7301 return;
7302 }
7303
7304 let text_layout_details = &self.text_layout_details(cx);
7305 let selection_count = self.selections.count();
7306 let first_selection = self.selections.first_anchor();
7307
7308 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7309 let line_mode = s.line_mode;
7310 s.move_with(|map, selection| {
7311 if !selection.is_empty() && !line_mode {
7312 selection.goal = SelectionGoal::None;
7313 }
7314 let (cursor, goal) = movement::down(
7315 map,
7316 selection.end,
7317 selection.goal,
7318 false,
7319 text_layout_details,
7320 );
7321 selection.collapse_to(cursor, goal);
7322 });
7323 });
7324
7325 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7326 {
7327 cx.propagate();
7328 }
7329 }
7330
7331 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7332 let Some(row_count) = self.visible_row_count() else {
7333 return;
7334 };
7335
7336 let text_layout_details = &self.text_layout_details(cx);
7337
7338 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7339 s.move_heads_with(|map, head, goal| {
7340 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7341 })
7342 })
7343 }
7344
7345 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7346 if self.take_rename(true, cx).is_some() {
7347 return;
7348 }
7349
7350 if self
7351 .context_menu
7352 .borrow_mut()
7353 .as_mut()
7354 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7355 .unwrap_or(false)
7356 {
7357 return;
7358 }
7359
7360 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7361 cx.propagate();
7362 return;
7363 }
7364
7365 let Some(row_count) = self.visible_row_count() else {
7366 return;
7367 };
7368
7369 let autoscroll = if action.center_cursor {
7370 Autoscroll::center()
7371 } else {
7372 Autoscroll::fit()
7373 };
7374
7375 let text_layout_details = &self.text_layout_details(cx);
7376 self.change_selections(Some(autoscroll), cx, |s| {
7377 let line_mode = s.line_mode;
7378 s.move_with(|map, selection| {
7379 if !selection.is_empty() && !line_mode {
7380 selection.goal = SelectionGoal::None;
7381 }
7382 let (cursor, goal) = movement::down_by_rows(
7383 map,
7384 selection.end,
7385 row_count,
7386 selection.goal,
7387 false,
7388 text_layout_details,
7389 );
7390 selection.collapse_to(cursor, goal);
7391 });
7392 });
7393 }
7394
7395 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7396 let text_layout_details = &self.text_layout_details(cx);
7397 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7398 s.move_heads_with(|map, head, goal| {
7399 movement::down(map, head, goal, false, text_layout_details)
7400 })
7401 });
7402 }
7403
7404 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7405 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7406 context_menu.select_first(self.completion_provider.as_deref(), cx);
7407 }
7408 }
7409
7410 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7411 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7412 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7413 }
7414 }
7415
7416 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7417 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7418 context_menu.select_next(self.completion_provider.as_deref(), cx);
7419 }
7420 }
7421
7422 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7423 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7424 context_menu.select_last(self.completion_provider.as_deref(), cx);
7425 }
7426 }
7427
7428 pub fn move_to_previous_word_start(
7429 &mut self,
7430 _: &MoveToPreviousWordStart,
7431 cx: &mut ViewContext<Self>,
7432 ) {
7433 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7434 s.move_cursors_with(|map, head, _| {
7435 (
7436 movement::previous_word_start(map, head),
7437 SelectionGoal::None,
7438 )
7439 });
7440 })
7441 }
7442
7443 pub fn move_to_previous_subword_start(
7444 &mut self,
7445 _: &MoveToPreviousSubwordStart,
7446 cx: &mut ViewContext<Self>,
7447 ) {
7448 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7449 s.move_cursors_with(|map, head, _| {
7450 (
7451 movement::previous_subword_start(map, head),
7452 SelectionGoal::None,
7453 )
7454 });
7455 })
7456 }
7457
7458 pub fn select_to_previous_word_start(
7459 &mut self,
7460 _: &SelectToPreviousWordStart,
7461 cx: &mut ViewContext<Self>,
7462 ) {
7463 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7464 s.move_heads_with(|map, head, _| {
7465 (
7466 movement::previous_word_start(map, head),
7467 SelectionGoal::None,
7468 )
7469 });
7470 })
7471 }
7472
7473 pub fn select_to_previous_subword_start(
7474 &mut self,
7475 _: &SelectToPreviousSubwordStart,
7476 cx: &mut ViewContext<Self>,
7477 ) {
7478 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7479 s.move_heads_with(|map, head, _| {
7480 (
7481 movement::previous_subword_start(map, head),
7482 SelectionGoal::None,
7483 )
7484 });
7485 })
7486 }
7487
7488 pub fn delete_to_previous_word_start(
7489 &mut self,
7490 action: &DeleteToPreviousWordStart,
7491 cx: &mut ViewContext<Self>,
7492 ) {
7493 self.transact(cx, |this, cx| {
7494 this.select_autoclose_pair(cx);
7495 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7496 let line_mode = s.line_mode;
7497 s.move_with(|map, selection| {
7498 if selection.is_empty() && !line_mode {
7499 let cursor = if action.ignore_newlines {
7500 movement::previous_word_start(map, selection.head())
7501 } else {
7502 movement::previous_word_start_or_newline(map, selection.head())
7503 };
7504 selection.set_head(cursor, SelectionGoal::None);
7505 }
7506 });
7507 });
7508 this.insert("", cx);
7509 });
7510 }
7511
7512 pub fn delete_to_previous_subword_start(
7513 &mut self,
7514 _: &DeleteToPreviousSubwordStart,
7515 cx: &mut ViewContext<Self>,
7516 ) {
7517 self.transact(cx, |this, cx| {
7518 this.select_autoclose_pair(cx);
7519 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7520 let line_mode = s.line_mode;
7521 s.move_with(|map, selection| {
7522 if selection.is_empty() && !line_mode {
7523 let cursor = movement::previous_subword_start(map, selection.head());
7524 selection.set_head(cursor, SelectionGoal::None);
7525 }
7526 });
7527 });
7528 this.insert("", cx);
7529 });
7530 }
7531
7532 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7533 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7534 s.move_cursors_with(|map, head, _| {
7535 (movement::next_word_end(map, head), SelectionGoal::None)
7536 });
7537 })
7538 }
7539
7540 pub fn move_to_next_subword_end(
7541 &mut self,
7542 _: &MoveToNextSubwordEnd,
7543 cx: &mut ViewContext<Self>,
7544 ) {
7545 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7546 s.move_cursors_with(|map, head, _| {
7547 (movement::next_subword_end(map, head), SelectionGoal::None)
7548 });
7549 })
7550 }
7551
7552 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7553 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7554 s.move_heads_with(|map, head, _| {
7555 (movement::next_word_end(map, head), SelectionGoal::None)
7556 });
7557 })
7558 }
7559
7560 pub fn select_to_next_subword_end(
7561 &mut self,
7562 _: &SelectToNextSubwordEnd,
7563 cx: &mut ViewContext<Self>,
7564 ) {
7565 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7566 s.move_heads_with(|map, head, _| {
7567 (movement::next_subword_end(map, head), SelectionGoal::None)
7568 });
7569 })
7570 }
7571
7572 pub fn delete_to_next_word_end(
7573 &mut self,
7574 action: &DeleteToNextWordEnd,
7575 cx: &mut ViewContext<Self>,
7576 ) {
7577 self.transact(cx, |this, cx| {
7578 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7579 let line_mode = s.line_mode;
7580 s.move_with(|map, selection| {
7581 if selection.is_empty() && !line_mode {
7582 let cursor = if action.ignore_newlines {
7583 movement::next_word_end(map, selection.head())
7584 } else {
7585 movement::next_word_end_or_newline(map, selection.head())
7586 };
7587 selection.set_head(cursor, SelectionGoal::None);
7588 }
7589 });
7590 });
7591 this.insert("", cx);
7592 });
7593 }
7594
7595 pub fn delete_to_next_subword_end(
7596 &mut self,
7597 _: &DeleteToNextSubwordEnd,
7598 cx: &mut ViewContext<Self>,
7599 ) {
7600 self.transact(cx, |this, cx| {
7601 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7602 s.move_with(|map, selection| {
7603 if selection.is_empty() {
7604 let cursor = movement::next_subword_end(map, selection.head());
7605 selection.set_head(cursor, SelectionGoal::None);
7606 }
7607 });
7608 });
7609 this.insert("", cx);
7610 });
7611 }
7612
7613 pub fn move_to_beginning_of_line(
7614 &mut self,
7615 action: &MoveToBeginningOfLine,
7616 cx: &mut ViewContext<Self>,
7617 ) {
7618 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7619 s.move_cursors_with(|map, head, _| {
7620 (
7621 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7622 SelectionGoal::None,
7623 )
7624 });
7625 })
7626 }
7627
7628 pub fn select_to_beginning_of_line(
7629 &mut self,
7630 action: &SelectToBeginningOfLine,
7631 cx: &mut ViewContext<Self>,
7632 ) {
7633 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7634 s.move_heads_with(|map, head, _| {
7635 (
7636 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7637 SelectionGoal::None,
7638 )
7639 });
7640 });
7641 }
7642
7643 pub fn delete_to_beginning_of_line(
7644 &mut self,
7645 _: &DeleteToBeginningOfLine,
7646 cx: &mut ViewContext<Self>,
7647 ) {
7648 self.transact(cx, |this, cx| {
7649 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7650 s.move_with(|_, selection| {
7651 selection.reversed = true;
7652 });
7653 });
7654
7655 this.select_to_beginning_of_line(
7656 &SelectToBeginningOfLine {
7657 stop_at_soft_wraps: false,
7658 },
7659 cx,
7660 );
7661 this.backspace(&Backspace, cx);
7662 });
7663 }
7664
7665 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7666 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7667 s.move_cursors_with(|map, head, _| {
7668 (
7669 movement::line_end(map, head, action.stop_at_soft_wraps),
7670 SelectionGoal::None,
7671 )
7672 });
7673 })
7674 }
7675
7676 pub fn select_to_end_of_line(
7677 &mut self,
7678 action: &SelectToEndOfLine,
7679 cx: &mut ViewContext<Self>,
7680 ) {
7681 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7682 s.move_heads_with(|map, head, _| {
7683 (
7684 movement::line_end(map, head, action.stop_at_soft_wraps),
7685 SelectionGoal::None,
7686 )
7687 });
7688 })
7689 }
7690
7691 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7692 self.transact(cx, |this, cx| {
7693 this.select_to_end_of_line(
7694 &SelectToEndOfLine {
7695 stop_at_soft_wraps: false,
7696 },
7697 cx,
7698 );
7699 this.delete(&Delete, cx);
7700 });
7701 }
7702
7703 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7704 self.transact(cx, |this, cx| {
7705 this.select_to_end_of_line(
7706 &SelectToEndOfLine {
7707 stop_at_soft_wraps: false,
7708 },
7709 cx,
7710 );
7711 this.cut(&Cut, cx);
7712 });
7713 }
7714
7715 pub fn move_to_start_of_paragraph(
7716 &mut self,
7717 _: &MoveToStartOfParagraph,
7718 cx: &mut ViewContext<Self>,
7719 ) {
7720 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7721 cx.propagate();
7722 return;
7723 }
7724
7725 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7726 s.move_with(|map, selection| {
7727 selection.collapse_to(
7728 movement::start_of_paragraph(map, selection.head(), 1),
7729 SelectionGoal::None,
7730 )
7731 });
7732 })
7733 }
7734
7735 pub fn move_to_end_of_paragraph(
7736 &mut self,
7737 _: &MoveToEndOfParagraph,
7738 cx: &mut ViewContext<Self>,
7739 ) {
7740 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7741 cx.propagate();
7742 return;
7743 }
7744
7745 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7746 s.move_with(|map, selection| {
7747 selection.collapse_to(
7748 movement::end_of_paragraph(map, selection.head(), 1),
7749 SelectionGoal::None,
7750 )
7751 });
7752 })
7753 }
7754
7755 pub fn select_to_start_of_paragraph(
7756 &mut self,
7757 _: &SelectToStartOfParagraph,
7758 cx: &mut ViewContext<Self>,
7759 ) {
7760 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7761 cx.propagate();
7762 return;
7763 }
7764
7765 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7766 s.move_heads_with(|map, head, _| {
7767 (
7768 movement::start_of_paragraph(map, head, 1),
7769 SelectionGoal::None,
7770 )
7771 });
7772 })
7773 }
7774
7775 pub fn select_to_end_of_paragraph(
7776 &mut self,
7777 _: &SelectToEndOfParagraph,
7778 cx: &mut ViewContext<Self>,
7779 ) {
7780 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7781 cx.propagate();
7782 return;
7783 }
7784
7785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7786 s.move_heads_with(|map, head, _| {
7787 (
7788 movement::end_of_paragraph(map, head, 1),
7789 SelectionGoal::None,
7790 )
7791 });
7792 })
7793 }
7794
7795 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7796 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7797 cx.propagate();
7798 return;
7799 }
7800
7801 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7802 s.select_ranges(vec![0..0]);
7803 });
7804 }
7805
7806 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7807 let mut selection = self.selections.last::<Point>(cx);
7808 selection.set_head(Point::zero(), SelectionGoal::None);
7809
7810 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7811 s.select(vec![selection]);
7812 });
7813 }
7814
7815 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7816 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7817 cx.propagate();
7818 return;
7819 }
7820
7821 let cursor = self.buffer.read(cx).read(cx).len();
7822 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7823 s.select_ranges(vec![cursor..cursor])
7824 });
7825 }
7826
7827 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7828 self.nav_history = nav_history;
7829 }
7830
7831 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7832 self.nav_history.as_ref()
7833 }
7834
7835 fn push_to_nav_history(
7836 &mut self,
7837 cursor_anchor: Anchor,
7838 new_position: Option<Point>,
7839 cx: &mut ViewContext<Self>,
7840 ) {
7841 if let Some(nav_history) = self.nav_history.as_mut() {
7842 let buffer = self.buffer.read(cx).read(cx);
7843 let cursor_position = cursor_anchor.to_point(&buffer);
7844 let scroll_state = self.scroll_manager.anchor();
7845 let scroll_top_row = scroll_state.top_row(&buffer);
7846 drop(buffer);
7847
7848 if let Some(new_position) = new_position {
7849 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7850 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7851 return;
7852 }
7853 }
7854
7855 nav_history.push(
7856 Some(NavigationData {
7857 cursor_anchor,
7858 cursor_position,
7859 scroll_anchor: scroll_state,
7860 scroll_top_row,
7861 }),
7862 cx,
7863 );
7864 }
7865 }
7866
7867 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7868 let buffer = self.buffer.read(cx).snapshot(cx);
7869 let mut selection = self.selections.first::<usize>(cx);
7870 selection.set_head(buffer.len(), SelectionGoal::None);
7871 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7872 s.select(vec![selection]);
7873 });
7874 }
7875
7876 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7877 let end = self.buffer.read(cx).read(cx).len();
7878 self.change_selections(None, cx, |s| {
7879 s.select_ranges(vec![0..end]);
7880 });
7881 }
7882
7883 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7884 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7885 let mut selections = self.selections.all::<Point>(cx);
7886 let max_point = display_map.buffer_snapshot.max_point();
7887 for selection in &mut selections {
7888 let rows = selection.spanned_rows(true, &display_map);
7889 selection.start = Point::new(rows.start.0, 0);
7890 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7891 selection.reversed = false;
7892 }
7893 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7894 s.select(selections);
7895 });
7896 }
7897
7898 pub fn split_selection_into_lines(
7899 &mut self,
7900 _: &SplitSelectionIntoLines,
7901 cx: &mut ViewContext<Self>,
7902 ) {
7903 let mut to_unfold = Vec::new();
7904 let mut new_selection_ranges = Vec::new();
7905 {
7906 let selections = self.selections.all::<Point>(cx);
7907 let buffer = self.buffer.read(cx).read(cx);
7908 for selection in selections {
7909 for row in selection.start.row..selection.end.row {
7910 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7911 new_selection_ranges.push(cursor..cursor);
7912 }
7913 new_selection_ranges.push(selection.end..selection.end);
7914 to_unfold.push(selection.start..selection.end);
7915 }
7916 }
7917 self.unfold_ranges(&to_unfold, true, true, cx);
7918 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7919 s.select_ranges(new_selection_ranges);
7920 });
7921 }
7922
7923 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7924 self.add_selection(true, cx);
7925 }
7926
7927 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7928 self.add_selection(false, cx);
7929 }
7930
7931 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7932 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7933 let mut selections = self.selections.all::<Point>(cx);
7934 let text_layout_details = self.text_layout_details(cx);
7935 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7936 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7937 let range = oldest_selection.display_range(&display_map).sorted();
7938
7939 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7940 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7941 let positions = start_x.min(end_x)..start_x.max(end_x);
7942
7943 selections.clear();
7944 let mut stack = Vec::new();
7945 for row in range.start.row().0..=range.end.row().0 {
7946 if let Some(selection) = self.selections.build_columnar_selection(
7947 &display_map,
7948 DisplayRow(row),
7949 &positions,
7950 oldest_selection.reversed,
7951 &text_layout_details,
7952 ) {
7953 stack.push(selection.id);
7954 selections.push(selection);
7955 }
7956 }
7957
7958 if above {
7959 stack.reverse();
7960 }
7961
7962 AddSelectionsState { above, stack }
7963 });
7964
7965 let last_added_selection = *state.stack.last().unwrap();
7966 let mut new_selections = Vec::new();
7967 if above == state.above {
7968 let end_row = if above {
7969 DisplayRow(0)
7970 } else {
7971 display_map.max_point().row()
7972 };
7973
7974 'outer: for selection in selections {
7975 if selection.id == last_added_selection {
7976 let range = selection.display_range(&display_map).sorted();
7977 debug_assert_eq!(range.start.row(), range.end.row());
7978 let mut row = range.start.row();
7979 let positions =
7980 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7981 px(start)..px(end)
7982 } else {
7983 let start_x =
7984 display_map.x_for_display_point(range.start, &text_layout_details);
7985 let end_x =
7986 display_map.x_for_display_point(range.end, &text_layout_details);
7987 start_x.min(end_x)..start_x.max(end_x)
7988 };
7989
7990 while row != end_row {
7991 if above {
7992 row.0 -= 1;
7993 } else {
7994 row.0 += 1;
7995 }
7996
7997 if let Some(new_selection) = self.selections.build_columnar_selection(
7998 &display_map,
7999 row,
8000 &positions,
8001 selection.reversed,
8002 &text_layout_details,
8003 ) {
8004 state.stack.push(new_selection.id);
8005 if above {
8006 new_selections.push(new_selection);
8007 new_selections.push(selection);
8008 } else {
8009 new_selections.push(selection);
8010 new_selections.push(new_selection);
8011 }
8012
8013 continue 'outer;
8014 }
8015 }
8016 }
8017
8018 new_selections.push(selection);
8019 }
8020 } else {
8021 new_selections = selections;
8022 new_selections.retain(|s| s.id != last_added_selection);
8023 state.stack.pop();
8024 }
8025
8026 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8027 s.select(new_selections);
8028 });
8029 if state.stack.len() > 1 {
8030 self.add_selections_state = Some(state);
8031 }
8032 }
8033
8034 pub fn select_next_match_internal(
8035 &mut self,
8036 display_map: &DisplaySnapshot,
8037 replace_newest: bool,
8038 autoscroll: Option<Autoscroll>,
8039 cx: &mut ViewContext<Self>,
8040 ) -> Result<()> {
8041 fn select_next_match_ranges(
8042 this: &mut Editor,
8043 range: Range<usize>,
8044 replace_newest: bool,
8045 auto_scroll: Option<Autoscroll>,
8046 cx: &mut ViewContext<Editor>,
8047 ) {
8048 this.unfold_ranges(&[range.clone()], false, true, cx);
8049 this.change_selections(auto_scroll, cx, |s| {
8050 if replace_newest {
8051 s.delete(s.newest_anchor().id);
8052 }
8053 s.insert_range(range.clone());
8054 });
8055 }
8056
8057 let buffer = &display_map.buffer_snapshot;
8058 let mut selections = self.selections.all::<usize>(cx);
8059 if let Some(mut select_next_state) = self.select_next_state.take() {
8060 let query = &select_next_state.query;
8061 if !select_next_state.done {
8062 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8063 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8064 let mut next_selected_range = None;
8065
8066 let bytes_after_last_selection =
8067 buffer.bytes_in_range(last_selection.end..buffer.len());
8068 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8069 let query_matches = query
8070 .stream_find_iter(bytes_after_last_selection)
8071 .map(|result| (last_selection.end, result))
8072 .chain(
8073 query
8074 .stream_find_iter(bytes_before_first_selection)
8075 .map(|result| (0, result)),
8076 );
8077
8078 for (start_offset, query_match) in query_matches {
8079 let query_match = query_match.unwrap(); // can only fail due to I/O
8080 let offset_range =
8081 start_offset + query_match.start()..start_offset + query_match.end();
8082 let display_range = offset_range.start.to_display_point(display_map)
8083 ..offset_range.end.to_display_point(display_map);
8084
8085 if !select_next_state.wordwise
8086 || (!movement::is_inside_word(display_map, display_range.start)
8087 && !movement::is_inside_word(display_map, display_range.end))
8088 {
8089 // TODO: This is n^2, because we might check all the selections
8090 if !selections
8091 .iter()
8092 .any(|selection| selection.range().overlaps(&offset_range))
8093 {
8094 next_selected_range = Some(offset_range);
8095 break;
8096 }
8097 }
8098 }
8099
8100 if let Some(next_selected_range) = next_selected_range {
8101 select_next_match_ranges(
8102 self,
8103 next_selected_range,
8104 replace_newest,
8105 autoscroll,
8106 cx,
8107 );
8108 } else {
8109 select_next_state.done = true;
8110 }
8111 }
8112
8113 self.select_next_state = Some(select_next_state);
8114 } else {
8115 let mut only_carets = true;
8116 let mut same_text_selected = true;
8117 let mut selected_text = None;
8118
8119 let mut selections_iter = selections.iter().peekable();
8120 while let Some(selection) = selections_iter.next() {
8121 if selection.start != selection.end {
8122 only_carets = false;
8123 }
8124
8125 if same_text_selected {
8126 if selected_text.is_none() {
8127 selected_text =
8128 Some(buffer.text_for_range(selection.range()).collect::<String>());
8129 }
8130
8131 if let Some(next_selection) = selections_iter.peek() {
8132 if next_selection.range().len() == selection.range().len() {
8133 let next_selected_text = buffer
8134 .text_for_range(next_selection.range())
8135 .collect::<String>();
8136 if Some(next_selected_text) != selected_text {
8137 same_text_selected = false;
8138 selected_text = None;
8139 }
8140 } else {
8141 same_text_selected = false;
8142 selected_text = None;
8143 }
8144 }
8145 }
8146 }
8147
8148 if only_carets {
8149 for selection in &mut selections {
8150 let word_range = movement::surrounding_word(
8151 display_map,
8152 selection.start.to_display_point(display_map),
8153 );
8154 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8155 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8156 selection.goal = SelectionGoal::None;
8157 selection.reversed = false;
8158 select_next_match_ranges(
8159 self,
8160 selection.start..selection.end,
8161 replace_newest,
8162 autoscroll,
8163 cx,
8164 );
8165 }
8166
8167 if selections.len() == 1 {
8168 let selection = selections
8169 .last()
8170 .expect("ensured that there's only one selection");
8171 let query = buffer
8172 .text_for_range(selection.start..selection.end)
8173 .collect::<String>();
8174 let is_empty = query.is_empty();
8175 let select_state = SelectNextState {
8176 query: AhoCorasick::new(&[query])?,
8177 wordwise: true,
8178 done: is_empty,
8179 };
8180 self.select_next_state = Some(select_state);
8181 } else {
8182 self.select_next_state = None;
8183 }
8184 } else if let Some(selected_text) = selected_text {
8185 self.select_next_state = Some(SelectNextState {
8186 query: AhoCorasick::new(&[selected_text])?,
8187 wordwise: false,
8188 done: false,
8189 });
8190 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8191 }
8192 }
8193 Ok(())
8194 }
8195
8196 pub fn select_all_matches(
8197 &mut self,
8198 _action: &SelectAllMatches,
8199 cx: &mut ViewContext<Self>,
8200 ) -> Result<()> {
8201 self.push_to_selection_history();
8202 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8203
8204 self.select_next_match_internal(&display_map, false, None, cx)?;
8205 let Some(select_next_state) = self.select_next_state.as_mut() else {
8206 return Ok(());
8207 };
8208 if select_next_state.done {
8209 return Ok(());
8210 }
8211
8212 let mut new_selections = self.selections.all::<usize>(cx);
8213
8214 let buffer = &display_map.buffer_snapshot;
8215 let query_matches = select_next_state
8216 .query
8217 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8218
8219 for query_match in query_matches {
8220 let query_match = query_match.unwrap(); // can only fail due to I/O
8221 let offset_range = query_match.start()..query_match.end();
8222 let display_range = offset_range.start.to_display_point(&display_map)
8223 ..offset_range.end.to_display_point(&display_map);
8224
8225 if !select_next_state.wordwise
8226 || (!movement::is_inside_word(&display_map, display_range.start)
8227 && !movement::is_inside_word(&display_map, display_range.end))
8228 {
8229 self.selections.change_with(cx, |selections| {
8230 new_selections.push(Selection {
8231 id: selections.new_selection_id(),
8232 start: offset_range.start,
8233 end: offset_range.end,
8234 reversed: false,
8235 goal: SelectionGoal::None,
8236 });
8237 });
8238 }
8239 }
8240
8241 new_selections.sort_by_key(|selection| selection.start);
8242 let mut ix = 0;
8243 while ix + 1 < new_selections.len() {
8244 let current_selection = &new_selections[ix];
8245 let next_selection = &new_selections[ix + 1];
8246 if current_selection.range().overlaps(&next_selection.range()) {
8247 if current_selection.id < next_selection.id {
8248 new_selections.remove(ix + 1);
8249 } else {
8250 new_selections.remove(ix);
8251 }
8252 } else {
8253 ix += 1;
8254 }
8255 }
8256
8257 select_next_state.done = true;
8258 self.unfold_ranges(
8259 &new_selections
8260 .iter()
8261 .map(|selection| selection.range())
8262 .collect::<Vec<_>>(),
8263 false,
8264 false,
8265 cx,
8266 );
8267 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8268 selections.select(new_selections)
8269 });
8270
8271 Ok(())
8272 }
8273
8274 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8275 self.push_to_selection_history();
8276 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8277 self.select_next_match_internal(
8278 &display_map,
8279 action.replace_newest,
8280 Some(Autoscroll::newest()),
8281 cx,
8282 )?;
8283 Ok(())
8284 }
8285
8286 pub fn select_previous(
8287 &mut self,
8288 action: &SelectPrevious,
8289 cx: &mut ViewContext<Self>,
8290 ) -> Result<()> {
8291 self.push_to_selection_history();
8292 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8293 let buffer = &display_map.buffer_snapshot;
8294 let mut selections = self.selections.all::<usize>(cx);
8295 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8296 let query = &select_prev_state.query;
8297 if !select_prev_state.done {
8298 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8299 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8300 let mut next_selected_range = None;
8301 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8302 let bytes_before_last_selection =
8303 buffer.reversed_bytes_in_range(0..last_selection.start);
8304 let bytes_after_first_selection =
8305 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8306 let query_matches = query
8307 .stream_find_iter(bytes_before_last_selection)
8308 .map(|result| (last_selection.start, result))
8309 .chain(
8310 query
8311 .stream_find_iter(bytes_after_first_selection)
8312 .map(|result| (buffer.len(), result)),
8313 );
8314 for (end_offset, query_match) in query_matches {
8315 let query_match = query_match.unwrap(); // can only fail due to I/O
8316 let offset_range =
8317 end_offset - query_match.end()..end_offset - query_match.start();
8318 let display_range = offset_range.start.to_display_point(&display_map)
8319 ..offset_range.end.to_display_point(&display_map);
8320
8321 if !select_prev_state.wordwise
8322 || (!movement::is_inside_word(&display_map, display_range.start)
8323 && !movement::is_inside_word(&display_map, display_range.end))
8324 {
8325 next_selected_range = Some(offset_range);
8326 break;
8327 }
8328 }
8329
8330 if let Some(next_selected_range) = next_selected_range {
8331 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8332 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8333 if action.replace_newest {
8334 s.delete(s.newest_anchor().id);
8335 }
8336 s.insert_range(next_selected_range);
8337 });
8338 } else {
8339 select_prev_state.done = true;
8340 }
8341 }
8342
8343 self.select_prev_state = Some(select_prev_state);
8344 } else {
8345 let mut only_carets = true;
8346 let mut same_text_selected = true;
8347 let mut selected_text = None;
8348
8349 let mut selections_iter = selections.iter().peekable();
8350 while let Some(selection) = selections_iter.next() {
8351 if selection.start != selection.end {
8352 only_carets = false;
8353 }
8354
8355 if same_text_selected {
8356 if selected_text.is_none() {
8357 selected_text =
8358 Some(buffer.text_for_range(selection.range()).collect::<String>());
8359 }
8360
8361 if let Some(next_selection) = selections_iter.peek() {
8362 if next_selection.range().len() == selection.range().len() {
8363 let next_selected_text = buffer
8364 .text_for_range(next_selection.range())
8365 .collect::<String>();
8366 if Some(next_selected_text) != selected_text {
8367 same_text_selected = false;
8368 selected_text = None;
8369 }
8370 } else {
8371 same_text_selected = false;
8372 selected_text = None;
8373 }
8374 }
8375 }
8376 }
8377
8378 if only_carets {
8379 for selection in &mut selections {
8380 let word_range = movement::surrounding_word(
8381 &display_map,
8382 selection.start.to_display_point(&display_map),
8383 );
8384 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8385 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8386 selection.goal = SelectionGoal::None;
8387 selection.reversed = false;
8388 }
8389 if selections.len() == 1 {
8390 let selection = selections
8391 .last()
8392 .expect("ensured that there's only one selection");
8393 let query = buffer
8394 .text_for_range(selection.start..selection.end)
8395 .collect::<String>();
8396 let is_empty = query.is_empty();
8397 let select_state = SelectNextState {
8398 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8399 wordwise: true,
8400 done: is_empty,
8401 };
8402 self.select_prev_state = Some(select_state);
8403 } else {
8404 self.select_prev_state = None;
8405 }
8406
8407 self.unfold_ranges(
8408 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8409 false,
8410 true,
8411 cx,
8412 );
8413 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8414 s.select(selections);
8415 });
8416 } else if let Some(selected_text) = selected_text {
8417 self.select_prev_state = Some(SelectNextState {
8418 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8419 wordwise: false,
8420 done: false,
8421 });
8422 self.select_previous(action, cx)?;
8423 }
8424 }
8425 Ok(())
8426 }
8427
8428 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8429 if self.read_only(cx) {
8430 return;
8431 }
8432 let text_layout_details = &self.text_layout_details(cx);
8433 self.transact(cx, |this, cx| {
8434 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8435 let mut edits = Vec::new();
8436 let mut selection_edit_ranges = Vec::new();
8437 let mut last_toggled_row = None;
8438 let snapshot = this.buffer.read(cx).read(cx);
8439 let empty_str: Arc<str> = Arc::default();
8440 let mut suffixes_inserted = Vec::new();
8441 let ignore_indent = action.ignore_indent;
8442
8443 fn comment_prefix_range(
8444 snapshot: &MultiBufferSnapshot,
8445 row: MultiBufferRow,
8446 comment_prefix: &str,
8447 comment_prefix_whitespace: &str,
8448 ignore_indent: bool,
8449 ) -> Range<Point> {
8450 let indent_size = if ignore_indent {
8451 0
8452 } else {
8453 snapshot.indent_size_for_line(row).len
8454 };
8455
8456 let start = Point::new(row.0, indent_size);
8457
8458 let mut line_bytes = snapshot
8459 .bytes_in_range(start..snapshot.max_point())
8460 .flatten()
8461 .copied();
8462
8463 // If this line currently begins with the line comment prefix, then record
8464 // the range containing the prefix.
8465 if line_bytes
8466 .by_ref()
8467 .take(comment_prefix.len())
8468 .eq(comment_prefix.bytes())
8469 {
8470 // Include any whitespace that matches the comment prefix.
8471 let matching_whitespace_len = line_bytes
8472 .zip(comment_prefix_whitespace.bytes())
8473 .take_while(|(a, b)| a == b)
8474 .count() as u32;
8475 let end = Point::new(
8476 start.row,
8477 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8478 );
8479 start..end
8480 } else {
8481 start..start
8482 }
8483 }
8484
8485 fn comment_suffix_range(
8486 snapshot: &MultiBufferSnapshot,
8487 row: MultiBufferRow,
8488 comment_suffix: &str,
8489 comment_suffix_has_leading_space: bool,
8490 ) -> Range<Point> {
8491 let end = Point::new(row.0, snapshot.line_len(row));
8492 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8493
8494 let mut line_end_bytes = snapshot
8495 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8496 .flatten()
8497 .copied();
8498
8499 let leading_space_len = if suffix_start_column > 0
8500 && line_end_bytes.next() == Some(b' ')
8501 && comment_suffix_has_leading_space
8502 {
8503 1
8504 } else {
8505 0
8506 };
8507
8508 // If this line currently begins with the line comment prefix, then record
8509 // the range containing the prefix.
8510 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8511 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8512 start..end
8513 } else {
8514 end..end
8515 }
8516 }
8517
8518 // TODO: Handle selections that cross excerpts
8519 for selection in &mut selections {
8520 let start_column = snapshot
8521 .indent_size_for_line(MultiBufferRow(selection.start.row))
8522 .len;
8523 let language = if let Some(language) =
8524 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8525 {
8526 language
8527 } else {
8528 continue;
8529 };
8530
8531 selection_edit_ranges.clear();
8532
8533 // If multiple selections contain a given row, avoid processing that
8534 // row more than once.
8535 let mut start_row = MultiBufferRow(selection.start.row);
8536 if last_toggled_row == Some(start_row) {
8537 start_row = start_row.next_row();
8538 }
8539 let end_row =
8540 if selection.end.row > selection.start.row && selection.end.column == 0 {
8541 MultiBufferRow(selection.end.row - 1)
8542 } else {
8543 MultiBufferRow(selection.end.row)
8544 };
8545 last_toggled_row = Some(end_row);
8546
8547 if start_row > end_row {
8548 continue;
8549 }
8550
8551 // If the language has line comments, toggle those.
8552 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8553
8554 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8555 if ignore_indent {
8556 full_comment_prefixes = full_comment_prefixes
8557 .into_iter()
8558 .map(|s| Arc::from(s.trim_end()))
8559 .collect();
8560 }
8561
8562 if !full_comment_prefixes.is_empty() {
8563 let first_prefix = full_comment_prefixes
8564 .first()
8565 .expect("prefixes is non-empty");
8566 let prefix_trimmed_lengths = full_comment_prefixes
8567 .iter()
8568 .map(|p| p.trim_end_matches(' ').len())
8569 .collect::<SmallVec<[usize; 4]>>();
8570
8571 let mut all_selection_lines_are_comments = true;
8572
8573 for row in start_row.0..=end_row.0 {
8574 let row = MultiBufferRow(row);
8575 if start_row < end_row && snapshot.is_line_blank(row) {
8576 continue;
8577 }
8578
8579 let prefix_range = full_comment_prefixes
8580 .iter()
8581 .zip(prefix_trimmed_lengths.iter().copied())
8582 .map(|(prefix, trimmed_prefix_len)| {
8583 comment_prefix_range(
8584 snapshot.deref(),
8585 row,
8586 &prefix[..trimmed_prefix_len],
8587 &prefix[trimmed_prefix_len..],
8588 ignore_indent,
8589 )
8590 })
8591 .max_by_key(|range| range.end.column - range.start.column)
8592 .expect("prefixes is non-empty");
8593
8594 if prefix_range.is_empty() {
8595 all_selection_lines_are_comments = false;
8596 }
8597
8598 selection_edit_ranges.push(prefix_range);
8599 }
8600
8601 if all_selection_lines_are_comments {
8602 edits.extend(
8603 selection_edit_ranges
8604 .iter()
8605 .cloned()
8606 .map(|range| (range, empty_str.clone())),
8607 );
8608 } else {
8609 let min_column = selection_edit_ranges
8610 .iter()
8611 .map(|range| range.start.column)
8612 .min()
8613 .unwrap_or(0);
8614 edits.extend(selection_edit_ranges.iter().map(|range| {
8615 let position = Point::new(range.start.row, min_column);
8616 (position..position, first_prefix.clone())
8617 }));
8618 }
8619 } else if let Some((full_comment_prefix, comment_suffix)) =
8620 language.block_comment_delimiters()
8621 {
8622 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8623 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8624 let prefix_range = comment_prefix_range(
8625 snapshot.deref(),
8626 start_row,
8627 comment_prefix,
8628 comment_prefix_whitespace,
8629 ignore_indent,
8630 );
8631 let suffix_range = comment_suffix_range(
8632 snapshot.deref(),
8633 end_row,
8634 comment_suffix.trim_start_matches(' '),
8635 comment_suffix.starts_with(' '),
8636 );
8637
8638 if prefix_range.is_empty() || suffix_range.is_empty() {
8639 edits.push((
8640 prefix_range.start..prefix_range.start,
8641 full_comment_prefix.clone(),
8642 ));
8643 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8644 suffixes_inserted.push((end_row, comment_suffix.len()));
8645 } else {
8646 edits.push((prefix_range, empty_str.clone()));
8647 edits.push((suffix_range, empty_str.clone()));
8648 }
8649 } else {
8650 continue;
8651 }
8652 }
8653
8654 drop(snapshot);
8655 this.buffer.update(cx, |buffer, cx| {
8656 buffer.edit(edits, None, cx);
8657 });
8658
8659 // Adjust selections so that they end before any comment suffixes that
8660 // were inserted.
8661 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8662 let mut selections = this.selections.all::<Point>(cx);
8663 let snapshot = this.buffer.read(cx).read(cx);
8664 for selection in &mut selections {
8665 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8666 match row.cmp(&MultiBufferRow(selection.end.row)) {
8667 Ordering::Less => {
8668 suffixes_inserted.next();
8669 continue;
8670 }
8671 Ordering::Greater => break,
8672 Ordering::Equal => {
8673 if selection.end.column == snapshot.line_len(row) {
8674 if selection.is_empty() {
8675 selection.start.column -= suffix_len as u32;
8676 }
8677 selection.end.column -= suffix_len as u32;
8678 }
8679 break;
8680 }
8681 }
8682 }
8683 }
8684
8685 drop(snapshot);
8686 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8687
8688 let selections = this.selections.all::<Point>(cx);
8689 let selections_on_single_row = selections.windows(2).all(|selections| {
8690 selections[0].start.row == selections[1].start.row
8691 && selections[0].end.row == selections[1].end.row
8692 && selections[0].start.row == selections[0].end.row
8693 });
8694 let selections_selecting = selections
8695 .iter()
8696 .any(|selection| selection.start != selection.end);
8697 let advance_downwards = action.advance_downwards
8698 && selections_on_single_row
8699 && !selections_selecting
8700 && !matches!(this.mode, EditorMode::SingleLine { .. });
8701
8702 if advance_downwards {
8703 let snapshot = this.buffer.read(cx).snapshot(cx);
8704
8705 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8706 s.move_cursors_with(|display_snapshot, display_point, _| {
8707 let mut point = display_point.to_point(display_snapshot);
8708 point.row += 1;
8709 point = snapshot.clip_point(point, Bias::Left);
8710 let display_point = point.to_display_point(display_snapshot);
8711 let goal = SelectionGoal::HorizontalPosition(
8712 display_snapshot
8713 .x_for_display_point(display_point, text_layout_details)
8714 .into(),
8715 );
8716 (display_point, goal)
8717 })
8718 });
8719 }
8720 });
8721 }
8722
8723 pub fn select_enclosing_symbol(
8724 &mut self,
8725 _: &SelectEnclosingSymbol,
8726 cx: &mut ViewContext<Self>,
8727 ) {
8728 let buffer = self.buffer.read(cx).snapshot(cx);
8729 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8730
8731 fn update_selection(
8732 selection: &Selection<usize>,
8733 buffer_snap: &MultiBufferSnapshot,
8734 ) -> Option<Selection<usize>> {
8735 let cursor = selection.head();
8736 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8737 for symbol in symbols.iter().rev() {
8738 let start = symbol.range.start.to_offset(buffer_snap);
8739 let end = symbol.range.end.to_offset(buffer_snap);
8740 let new_range = start..end;
8741 if start < selection.start || end > selection.end {
8742 return Some(Selection {
8743 id: selection.id,
8744 start: new_range.start,
8745 end: new_range.end,
8746 goal: SelectionGoal::None,
8747 reversed: selection.reversed,
8748 });
8749 }
8750 }
8751 None
8752 }
8753
8754 let mut selected_larger_symbol = false;
8755 let new_selections = old_selections
8756 .iter()
8757 .map(|selection| match update_selection(selection, &buffer) {
8758 Some(new_selection) => {
8759 if new_selection.range() != selection.range() {
8760 selected_larger_symbol = true;
8761 }
8762 new_selection
8763 }
8764 None => selection.clone(),
8765 })
8766 .collect::<Vec<_>>();
8767
8768 if selected_larger_symbol {
8769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8770 s.select(new_selections);
8771 });
8772 }
8773 }
8774
8775 pub fn select_larger_syntax_node(
8776 &mut self,
8777 _: &SelectLargerSyntaxNode,
8778 cx: &mut ViewContext<Self>,
8779 ) {
8780 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8781 let buffer = self.buffer.read(cx).snapshot(cx);
8782 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8783
8784 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8785 let mut selected_larger_node = false;
8786 let new_selections = old_selections
8787 .iter()
8788 .map(|selection| {
8789 let old_range = selection.start..selection.end;
8790 let mut new_range = old_range.clone();
8791 while let Some(containing_range) =
8792 buffer.range_for_syntax_ancestor(new_range.clone())
8793 {
8794 new_range = containing_range;
8795 if !display_map.intersects_fold(new_range.start)
8796 && !display_map.intersects_fold(new_range.end)
8797 {
8798 break;
8799 }
8800 }
8801
8802 selected_larger_node |= new_range != old_range;
8803 Selection {
8804 id: selection.id,
8805 start: new_range.start,
8806 end: new_range.end,
8807 goal: SelectionGoal::None,
8808 reversed: selection.reversed,
8809 }
8810 })
8811 .collect::<Vec<_>>();
8812
8813 if selected_larger_node {
8814 stack.push(old_selections);
8815 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8816 s.select(new_selections);
8817 });
8818 }
8819 self.select_larger_syntax_node_stack = stack;
8820 }
8821
8822 pub fn select_smaller_syntax_node(
8823 &mut self,
8824 _: &SelectSmallerSyntaxNode,
8825 cx: &mut ViewContext<Self>,
8826 ) {
8827 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8828 if let Some(selections) = stack.pop() {
8829 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8830 s.select(selections.to_vec());
8831 });
8832 }
8833 self.select_larger_syntax_node_stack = stack;
8834 }
8835
8836 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8837 if !EditorSettings::get_global(cx).gutter.runnables {
8838 self.clear_tasks();
8839 return Task::ready(());
8840 }
8841 let project = self.project.as_ref().map(Model::downgrade);
8842 cx.spawn(|this, mut cx| async move {
8843 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8844 let Some(project) = project.and_then(|p| p.upgrade()) else {
8845 return;
8846 };
8847 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8848 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8849 }) else {
8850 return;
8851 };
8852
8853 let hide_runnables = project
8854 .update(&mut cx, |project, cx| {
8855 // Do not display any test indicators in non-dev server remote projects.
8856 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8857 })
8858 .unwrap_or(true);
8859 if hide_runnables {
8860 return;
8861 }
8862 let new_rows =
8863 cx.background_executor()
8864 .spawn({
8865 let snapshot = display_snapshot.clone();
8866 async move {
8867 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8868 }
8869 })
8870 .await;
8871 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8872
8873 this.update(&mut cx, |this, _| {
8874 this.clear_tasks();
8875 for (key, value) in rows {
8876 this.insert_tasks(key, value);
8877 }
8878 })
8879 .ok();
8880 })
8881 }
8882 fn fetch_runnable_ranges(
8883 snapshot: &DisplaySnapshot,
8884 range: Range<Anchor>,
8885 ) -> Vec<language::RunnableRange> {
8886 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8887 }
8888
8889 fn runnable_rows(
8890 project: Model<Project>,
8891 snapshot: DisplaySnapshot,
8892 runnable_ranges: Vec<RunnableRange>,
8893 mut cx: AsyncWindowContext,
8894 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8895 runnable_ranges
8896 .into_iter()
8897 .filter_map(|mut runnable| {
8898 let tasks = cx
8899 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8900 .ok()?;
8901 if tasks.is_empty() {
8902 return None;
8903 }
8904
8905 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8906
8907 let row = snapshot
8908 .buffer_snapshot
8909 .buffer_line_for_row(MultiBufferRow(point.row))?
8910 .1
8911 .start
8912 .row;
8913
8914 let context_range =
8915 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8916 Some((
8917 (runnable.buffer_id, row),
8918 RunnableTasks {
8919 templates: tasks,
8920 offset: MultiBufferOffset(runnable.run_range.start),
8921 context_range,
8922 column: point.column,
8923 extra_variables: runnable.extra_captures,
8924 },
8925 ))
8926 })
8927 .collect()
8928 }
8929
8930 fn templates_with_tags(
8931 project: &Model<Project>,
8932 runnable: &mut Runnable,
8933 cx: &WindowContext<'_>,
8934 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8935 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8936 let (worktree_id, file) = project
8937 .buffer_for_id(runnable.buffer, cx)
8938 .and_then(|buffer| buffer.read(cx).file())
8939 .map(|file| (file.worktree_id(cx), file.clone()))
8940 .unzip();
8941
8942 (
8943 project.task_store().read(cx).task_inventory().cloned(),
8944 worktree_id,
8945 file,
8946 )
8947 });
8948
8949 let tags = mem::take(&mut runnable.tags);
8950 let mut tags: Vec<_> = tags
8951 .into_iter()
8952 .flat_map(|tag| {
8953 let tag = tag.0.clone();
8954 inventory
8955 .as_ref()
8956 .into_iter()
8957 .flat_map(|inventory| {
8958 inventory.read(cx).list_tasks(
8959 file.clone(),
8960 Some(runnable.language.clone()),
8961 worktree_id,
8962 cx,
8963 )
8964 })
8965 .filter(move |(_, template)| {
8966 template.tags.iter().any(|source_tag| source_tag == &tag)
8967 })
8968 })
8969 .sorted_by_key(|(kind, _)| kind.to_owned())
8970 .collect();
8971 if let Some((leading_tag_source, _)) = tags.first() {
8972 // Strongest source wins; if we have worktree tag binding, prefer that to
8973 // global and language bindings;
8974 // if we have a global binding, prefer that to language binding.
8975 let first_mismatch = tags
8976 .iter()
8977 .position(|(tag_source, _)| tag_source != leading_tag_source);
8978 if let Some(index) = first_mismatch {
8979 tags.truncate(index);
8980 }
8981 }
8982
8983 tags
8984 }
8985
8986 pub fn move_to_enclosing_bracket(
8987 &mut self,
8988 _: &MoveToEnclosingBracket,
8989 cx: &mut ViewContext<Self>,
8990 ) {
8991 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8992 s.move_offsets_with(|snapshot, selection| {
8993 let Some(enclosing_bracket_ranges) =
8994 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8995 else {
8996 return;
8997 };
8998
8999 let mut best_length = usize::MAX;
9000 let mut best_inside = false;
9001 let mut best_in_bracket_range = false;
9002 let mut best_destination = None;
9003 for (open, close) in enclosing_bracket_ranges {
9004 let close = close.to_inclusive();
9005 let length = close.end() - open.start;
9006 let inside = selection.start >= open.end && selection.end <= *close.start();
9007 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9008 || close.contains(&selection.head());
9009
9010 // If best is next to a bracket and current isn't, skip
9011 if !in_bracket_range && best_in_bracket_range {
9012 continue;
9013 }
9014
9015 // Prefer smaller lengths unless best is inside and current isn't
9016 if length > best_length && (best_inside || !inside) {
9017 continue;
9018 }
9019
9020 best_length = length;
9021 best_inside = inside;
9022 best_in_bracket_range = in_bracket_range;
9023 best_destination = Some(
9024 if close.contains(&selection.start) && close.contains(&selection.end) {
9025 if inside {
9026 open.end
9027 } else {
9028 open.start
9029 }
9030 } else if inside {
9031 *close.start()
9032 } else {
9033 *close.end()
9034 },
9035 );
9036 }
9037
9038 if let Some(destination) = best_destination {
9039 selection.collapse_to(destination, SelectionGoal::None);
9040 }
9041 })
9042 });
9043 }
9044
9045 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9046 self.end_selection(cx);
9047 self.selection_history.mode = SelectionHistoryMode::Undoing;
9048 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9049 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9050 self.select_next_state = entry.select_next_state;
9051 self.select_prev_state = entry.select_prev_state;
9052 self.add_selections_state = entry.add_selections_state;
9053 self.request_autoscroll(Autoscroll::newest(), cx);
9054 }
9055 self.selection_history.mode = SelectionHistoryMode::Normal;
9056 }
9057
9058 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9059 self.end_selection(cx);
9060 self.selection_history.mode = SelectionHistoryMode::Redoing;
9061 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9062 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9063 self.select_next_state = entry.select_next_state;
9064 self.select_prev_state = entry.select_prev_state;
9065 self.add_selections_state = entry.add_selections_state;
9066 self.request_autoscroll(Autoscroll::newest(), cx);
9067 }
9068 self.selection_history.mode = SelectionHistoryMode::Normal;
9069 }
9070
9071 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9072 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9073 }
9074
9075 pub fn expand_excerpts_down(
9076 &mut self,
9077 action: &ExpandExcerptsDown,
9078 cx: &mut ViewContext<Self>,
9079 ) {
9080 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9081 }
9082
9083 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9084 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9085 }
9086
9087 pub fn expand_excerpts_for_direction(
9088 &mut self,
9089 lines: u32,
9090 direction: ExpandExcerptDirection,
9091 cx: &mut ViewContext<Self>,
9092 ) {
9093 let selections = self.selections.disjoint_anchors();
9094
9095 let lines = if lines == 0 {
9096 EditorSettings::get_global(cx).expand_excerpt_lines
9097 } else {
9098 lines
9099 };
9100
9101 self.buffer.update(cx, |buffer, cx| {
9102 buffer.expand_excerpts(
9103 selections
9104 .iter()
9105 .map(|selection| selection.head().excerpt_id)
9106 .dedup(),
9107 lines,
9108 direction,
9109 cx,
9110 )
9111 })
9112 }
9113
9114 pub fn expand_excerpt(
9115 &mut self,
9116 excerpt: ExcerptId,
9117 direction: ExpandExcerptDirection,
9118 cx: &mut ViewContext<Self>,
9119 ) {
9120 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9121 self.buffer.update(cx, |buffer, cx| {
9122 buffer.expand_excerpts([excerpt], lines, direction, cx)
9123 })
9124 }
9125
9126 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9127 self.go_to_diagnostic_impl(Direction::Next, cx)
9128 }
9129
9130 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9131 self.go_to_diagnostic_impl(Direction::Prev, cx)
9132 }
9133
9134 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9135 let buffer = self.buffer.read(cx).snapshot(cx);
9136 let selection = self.selections.newest::<usize>(cx);
9137
9138 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9139 if direction == Direction::Next {
9140 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9141 let (group_id, jump_to) = popover.activation_info();
9142 if self.activate_diagnostics(group_id, cx) {
9143 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9144 let mut new_selection = s.newest_anchor().clone();
9145 new_selection.collapse_to(jump_to, SelectionGoal::None);
9146 s.select_anchors(vec![new_selection.clone()]);
9147 });
9148 }
9149 return;
9150 }
9151 }
9152
9153 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9154 active_diagnostics
9155 .primary_range
9156 .to_offset(&buffer)
9157 .to_inclusive()
9158 });
9159 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9160 if active_primary_range.contains(&selection.head()) {
9161 *active_primary_range.start()
9162 } else {
9163 selection.head()
9164 }
9165 } else {
9166 selection.head()
9167 };
9168 let snapshot = self.snapshot(cx);
9169 loop {
9170 let diagnostics = if direction == Direction::Prev {
9171 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9172 } else {
9173 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9174 }
9175 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9176 let group = diagnostics
9177 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9178 // be sorted in a stable way
9179 // skip until we are at current active diagnostic, if it exists
9180 .skip_while(|entry| {
9181 (match direction {
9182 Direction::Prev => entry.range.start >= search_start,
9183 Direction::Next => entry.range.start <= search_start,
9184 }) && self
9185 .active_diagnostics
9186 .as_ref()
9187 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9188 })
9189 .find_map(|entry| {
9190 if entry.diagnostic.is_primary
9191 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9192 && !entry.range.is_empty()
9193 // if we match with the active diagnostic, skip it
9194 && Some(entry.diagnostic.group_id)
9195 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9196 {
9197 Some((entry.range, entry.diagnostic.group_id))
9198 } else {
9199 None
9200 }
9201 });
9202
9203 if let Some((primary_range, group_id)) = group {
9204 if self.activate_diagnostics(group_id, cx) {
9205 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9206 s.select(vec![Selection {
9207 id: selection.id,
9208 start: primary_range.start,
9209 end: primary_range.start,
9210 reversed: false,
9211 goal: SelectionGoal::None,
9212 }]);
9213 });
9214 }
9215 break;
9216 } else {
9217 // Cycle around to the start of the buffer, potentially moving back to the start of
9218 // the currently active diagnostic.
9219 active_primary_range.take();
9220 if direction == Direction::Prev {
9221 if search_start == buffer.len() {
9222 break;
9223 } else {
9224 search_start = buffer.len();
9225 }
9226 } else if search_start == 0 {
9227 break;
9228 } else {
9229 search_start = 0;
9230 }
9231 }
9232 }
9233 }
9234
9235 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9236 let snapshot = self.snapshot(cx);
9237 let selection = self.selections.newest::<Point>(cx);
9238 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9239 }
9240
9241 fn go_to_hunk_after_position(
9242 &mut self,
9243 snapshot: &EditorSnapshot,
9244 position: Point,
9245 cx: &mut ViewContext<'_, Editor>,
9246 ) -> Option<MultiBufferDiffHunk> {
9247 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9248 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9249 snapshot,
9250 position,
9251 ix > 0,
9252 snapshot.diff_map.diff_hunks_in_range(
9253 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9254 &snapshot.buffer_snapshot,
9255 ),
9256 cx,
9257 ) {
9258 return Some(hunk);
9259 }
9260 }
9261 None
9262 }
9263
9264 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9265 let snapshot = self.snapshot(cx);
9266 let selection = self.selections.newest::<Point>(cx);
9267 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9268 }
9269
9270 fn go_to_hunk_before_position(
9271 &mut self,
9272 snapshot: &EditorSnapshot,
9273 position: Point,
9274 cx: &mut ViewContext<'_, Editor>,
9275 ) -> Option<MultiBufferDiffHunk> {
9276 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9277 .into_iter()
9278 .enumerate()
9279 {
9280 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9281 snapshot,
9282 position,
9283 ix > 0,
9284 snapshot
9285 .diff_map
9286 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9287 cx,
9288 ) {
9289 return Some(hunk);
9290 }
9291 }
9292 None
9293 }
9294
9295 fn go_to_next_hunk_in_direction(
9296 &mut self,
9297 snapshot: &DisplaySnapshot,
9298 initial_point: Point,
9299 is_wrapped: bool,
9300 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9301 cx: &mut ViewContext<Editor>,
9302 ) -> Option<MultiBufferDiffHunk> {
9303 let display_point = initial_point.to_display_point(snapshot);
9304 let mut hunks = hunks
9305 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9306 .filter(|(display_hunk, _)| {
9307 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9308 })
9309 .dedup();
9310
9311 if let Some((display_hunk, hunk)) = hunks.next() {
9312 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9313 let row = display_hunk.start_display_row();
9314 let point = DisplayPoint::new(row, 0);
9315 s.select_display_ranges([point..point]);
9316 });
9317
9318 Some(hunk)
9319 } else {
9320 None
9321 }
9322 }
9323
9324 pub fn go_to_definition(
9325 &mut self,
9326 _: &GoToDefinition,
9327 cx: &mut ViewContext<Self>,
9328 ) -> Task<Result<Navigated>> {
9329 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9330 cx.spawn(|editor, mut cx| async move {
9331 if definition.await? == Navigated::Yes {
9332 return Ok(Navigated::Yes);
9333 }
9334 match editor.update(&mut cx, |editor, cx| {
9335 editor.find_all_references(&FindAllReferences, cx)
9336 })? {
9337 Some(references) => references.await,
9338 None => Ok(Navigated::No),
9339 }
9340 })
9341 }
9342
9343 pub fn go_to_declaration(
9344 &mut self,
9345 _: &GoToDeclaration,
9346 cx: &mut ViewContext<Self>,
9347 ) -> Task<Result<Navigated>> {
9348 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9349 }
9350
9351 pub fn go_to_declaration_split(
9352 &mut self,
9353 _: &GoToDeclaration,
9354 cx: &mut ViewContext<Self>,
9355 ) -> Task<Result<Navigated>> {
9356 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9357 }
9358
9359 pub fn go_to_implementation(
9360 &mut self,
9361 _: &GoToImplementation,
9362 cx: &mut ViewContext<Self>,
9363 ) -> Task<Result<Navigated>> {
9364 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9365 }
9366
9367 pub fn go_to_implementation_split(
9368 &mut self,
9369 _: &GoToImplementationSplit,
9370 cx: &mut ViewContext<Self>,
9371 ) -> Task<Result<Navigated>> {
9372 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9373 }
9374
9375 pub fn go_to_type_definition(
9376 &mut self,
9377 _: &GoToTypeDefinition,
9378 cx: &mut ViewContext<Self>,
9379 ) -> Task<Result<Navigated>> {
9380 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9381 }
9382
9383 pub fn go_to_definition_split(
9384 &mut self,
9385 _: &GoToDefinitionSplit,
9386 cx: &mut ViewContext<Self>,
9387 ) -> Task<Result<Navigated>> {
9388 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9389 }
9390
9391 pub fn go_to_type_definition_split(
9392 &mut self,
9393 _: &GoToTypeDefinitionSplit,
9394 cx: &mut ViewContext<Self>,
9395 ) -> Task<Result<Navigated>> {
9396 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9397 }
9398
9399 fn go_to_definition_of_kind(
9400 &mut self,
9401 kind: GotoDefinitionKind,
9402 split: bool,
9403 cx: &mut ViewContext<Self>,
9404 ) -> Task<Result<Navigated>> {
9405 let Some(provider) = self.semantics_provider.clone() else {
9406 return Task::ready(Ok(Navigated::No));
9407 };
9408 let head = self.selections.newest::<usize>(cx).head();
9409 let buffer = self.buffer.read(cx);
9410 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9411 text_anchor
9412 } else {
9413 return Task::ready(Ok(Navigated::No));
9414 };
9415
9416 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9417 return Task::ready(Ok(Navigated::No));
9418 };
9419
9420 cx.spawn(|editor, mut cx| async move {
9421 let definitions = definitions.await?;
9422 let navigated = editor
9423 .update(&mut cx, |editor, cx| {
9424 editor.navigate_to_hover_links(
9425 Some(kind),
9426 definitions
9427 .into_iter()
9428 .filter(|location| {
9429 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9430 })
9431 .map(HoverLink::Text)
9432 .collect::<Vec<_>>(),
9433 split,
9434 cx,
9435 )
9436 })?
9437 .await?;
9438 anyhow::Ok(navigated)
9439 })
9440 }
9441
9442 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9443 let selection = self.selections.newest_anchor();
9444 let head = selection.head();
9445 let tail = selection.tail();
9446
9447 let Some((buffer, start_position)) =
9448 self.buffer.read(cx).text_anchor_for_position(head, cx)
9449 else {
9450 return;
9451 };
9452
9453 let end_position = if head != tail {
9454 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9455 return;
9456 };
9457 Some(pos)
9458 } else {
9459 None
9460 };
9461
9462 let url_finder = cx.spawn(|editor, mut cx| async move {
9463 let url = if let Some(end_pos) = end_position {
9464 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9465 } else {
9466 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9467 };
9468
9469 if let Some(url) = url {
9470 editor.update(&mut cx, |_, cx| {
9471 cx.open_url(&url);
9472 })
9473 } else {
9474 Ok(())
9475 }
9476 });
9477
9478 url_finder.detach();
9479 }
9480
9481 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9482 let Some(workspace) = self.workspace() else {
9483 return;
9484 };
9485
9486 let position = self.selections.newest_anchor().head();
9487
9488 let Some((buffer, buffer_position)) =
9489 self.buffer.read(cx).text_anchor_for_position(position, cx)
9490 else {
9491 return;
9492 };
9493
9494 let project = self.project.clone();
9495
9496 cx.spawn(|_, mut cx| async move {
9497 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9498
9499 if let Some((_, path)) = result {
9500 workspace
9501 .update(&mut cx, |workspace, cx| {
9502 workspace.open_resolved_path(path, cx)
9503 })?
9504 .await?;
9505 }
9506 anyhow::Ok(())
9507 })
9508 .detach();
9509 }
9510
9511 pub(crate) fn navigate_to_hover_links(
9512 &mut self,
9513 kind: Option<GotoDefinitionKind>,
9514 mut definitions: Vec<HoverLink>,
9515 split: bool,
9516 cx: &mut ViewContext<Editor>,
9517 ) -> Task<Result<Navigated>> {
9518 // If there is one definition, just open it directly
9519 if definitions.len() == 1 {
9520 let definition = definitions.pop().unwrap();
9521
9522 enum TargetTaskResult {
9523 Location(Option<Location>),
9524 AlreadyNavigated,
9525 }
9526
9527 let target_task = match definition {
9528 HoverLink::Text(link) => {
9529 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9530 }
9531 HoverLink::InlayHint(lsp_location, server_id) => {
9532 let computation = self.compute_target_location(lsp_location, server_id, cx);
9533 cx.background_executor().spawn(async move {
9534 let location = computation.await?;
9535 Ok(TargetTaskResult::Location(location))
9536 })
9537 }
9538 HoverLink::Url(url) => {
9539 cx.open_url(&url);
9540 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9541 }
9542 HoverLink::File(path) => {
9543 if let Some(workspace) = self.workspace() {
9544 cx.spawn(|_, mut cx| async move {
9545 workspace
9546 .update(&mut cx, |workspace, cx| {
9547 workspace.open_resolved_path(path, cx)
9548 })?
9549 .await
9550 .map(|_| TargetTaskResult::AlreadyNavigated)
9551 })
9552 } else {
9553 Task::ready(Ok(TargetTaskResult::Location(None)))
9554 }
9555 }
9556 };
9557 cx.spawn(|editor, mut cx| async move {
9558 let target = match target_task.await.context("target resolution task")? {
9559 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9560 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9561 TargetTaskResult::Location(Some(target)) => target,
9562 };
9563
9564 editor.update(&mut cx, |editor, cx| {
9565 let Some(workspace) = editor.workspace() else {
9566 return Navigated::No;
9567 };
9568 let pane = workspace.read(cx).active_pane().clone();
9569
9570 let range = target.range.to_offset(target.buffer.read(cx));
9571 let range = editor.range_for_match(&range);
9572
9573 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9574 let buffer = target.buffer.read(cx);
9575 let range = check_multiline_range(buffer, range);
9576 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9577 s.select_ranges([range]);
9578 });
9579 } else {
9580 cx.window_context().defer(move |cx| {
9581 let target_editor: View<Self> =
9582 workspace.update(cx, |workspace, cx| {
9583 let pane = if split {
9584 workspace.adjacent_pane(cx)
9585 } else {
9586 workspace.active_pane().clone()
9587 };
9588
9589 workspace.open_project_item(
9590 pane,
9591 target.buffer.clone(),
9592 true,
9593 true,
9594 cx,
9595 )
9596 });
9597 target_editor.update(cx, |target_editor, cx| {
9598 // When selecting a definition in a different buffer, disable the nav history
9599 // to avoid creating a history entry at the previous cursor location.
9600 pane.update(cx, |pane, _| pane.disable_history());
9601 let buffer = target.buffer.read(cx);
9602 let range = check_multiline_range(buffer, range);
9603 target_editor.change_selections(
9604 Some(Autoscroll::focused()),
9605 cx,
9606 |s| {
9607 s.select_ranges([range]);
9608 },
9609 );
9610 pane.update(cx, |pane, _| pane.enable_history());
9611 });
9612 });
9613 }
9614 Navigated::Yes
9615 })
9616 })
9617 } else if !definitions.is_empty() {
9618 cx.spawn(|editor, mut cx| async move {
9619 let (title, location_tasks, workspace) = editor
9620 .update(&mut cx, |editor, cx| {
9621 let tab_kind = match kind {
9622 Some(GotoDefinitionKind::Implementation) => "Implementations",
9623 _ => "Definitions",
9624 };
9625 let title = definitions
9626 .iter()
9627 .find_map(|definition| match definition {
9628 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9629 let buffer = origin.buffer.read(cx);
9630 format!(
9631 "{} for {}",
9632 tab_kind,
9633 buffer
9634 .text_for_range(origin.range.clone())
9635 .collect::<String>()
9636 )
9637 }),
9638 HoverLink::InlayHint(_, _) => None,
9639 HoverLink::Url(_) => None,
9640 HoverLink::File(_) => None,
9641 })
9642 .unwrap_or(tab_kind.to_string());
9643 let location_tasks = definitions
9644 .into_iter()
9645 .map(|definition| match definition {
9646 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9647 HoverLink::InlayHint(lsp_location, server_id) => {
9648 editor.compute_target_location(lsp_location, server_id, cx)
9649 }
9650 HoverLink::Url(_) => Task::ready(Ok(None)),
9651 HoverLink::File(_) => Task::ready(Ok(None)),
9652 })
9653 .collect::<Vec<_>>();
9654 (title, location_tasks, editor.workspace().clone())
9655 })
9656 .context("location tasks preparation")?;
9657
9658 let locations = future::join_all(location_tasks)
9659 .await
9660 .into_iter()
9661 .filter_map(|location| location.transpose())
9662 .collect::<Result<_>>()
9663 .context("location tasks")?;
9664
9665 let Some(workspace) = workspace else {
9666 return Ok(Navigated::No);
9667 };
9668 let opened = workspace
9669 .update(&mut cx, |workspace, cx| {
9670 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9671 })
9672 .ok();
9673
9674 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9675 })
9676 } else {
9677 Task::ready(Ok(Navigated::No))
9678 }
9679 }
9680
9681 fn compute_target_location(
9682 &self,
9683 lsp_location: lsp::Location,
9684 server_id: LanguageServerId,
9685 cx: &mut ViewContext<Self>,
9686 ) -> Task<anyhow::Result<Option<Location>>> {
9687 let Some(project) = self.project.clone() else {
9688 return Task::ready(Ok(None));
9689 };
9690
9691 cx.spawn(move |editor, mut cx| async move {
9692 let location_task = editor.update(&mut cx, |_, cx| {
9693 project.update(cx, |project, cx| {
9694 let language_server_name = project
9695 .language_server_statuses(cx)
9696 .find(|(id, _)| server_id == *id)
9697 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9698 language_server_name.map(|language_server_name| {
9699 project.open_local_buffer_via_lsp(
9700 lsp_location.uri.clone(),
9701 server_id,
9702 language_server_name,
9703 cx,
9704 )
9705 })
9706 })
9707 })?;
9708 let location = match location_task {
9709 Some(task) => Some({
9710 let target_buffer_handle = task.await.context("open local buffer")?;
9711 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9712 let target_start = target_buffer
9713 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9714 let target_end = target_buffer
9715 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9716 target_buffer.anchor_after(target_start)
9717 ..target_buffer.anchor_before(target_end)
9718 })?;
9719 Location {
9720 buffer: target_buffer_handle,
9721 range,
9722 }
9723 }),
9724 None => None,
9725 };
9726 Ok(location)
9727 })
9728 }
9729
9730 pub fn find_all_references(
9731 &mut self,
9732 _: &FindAllReferences,
9733 cx: &mut ViewContext<Self>,
9734 ) -> Option<Task<Result<Navigated>>> {
9735 let selection = self.selections.newest::<usize>(cx);
9736 let multi_buffer = self.buffer.read(cx);
9737 let head = selection.head();
9738
9739 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9740 let head_anchor = multi_buffer_snapshot.anchor_at(
9741 head,
9742 if head < selection.tail() {
9743 Bias::Right
9744 } else {
9745 Bias::Left
9746 },
9747 );
9748
9749 match self
9750 .find_all_references_task_sources
9751 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9752 {
9753 Ok(_) => {
9754 log::info!(
9755 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9756 );
9757 return None;
9758 }
9759 Err(i) => {
9760 self.find_all_references_task_sources.insert(i, head_anchor);
9761 }
9762 }
9763
9764 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9765 let workspace = self.workspace()?;
9766 let project = workspace.read(cx).project().clone();
9767 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9768 Some(cx.spawn(|editor, mut cx| async move {
9769 let _cleanup = defer({
9770 let mut cx = cx.clone();
9771 move || {
9772 let _ = editor.update(&mut cx, |editor, _| {
9773 if let Ok(i) =
9774 editor
9775 .find_all_references_task_sources
9776 .binary_search_by(|anchor| {
9777 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9778 })
9779 {
9780 editor.find_all_references_task_sources.remove(i);
9781 }
9782 });
9783 }
9784 });
9785
9786 let locations = references.await?;
9787 if locations.is_empty() {
9788 return anyhow::Ok(Navigated::No);
9789 }
9790
9791 workspace.update(&mut cx, |workspace, cx| {
9792 let title = locations
9793 .first()
9794 .as_ref()
9795 .map(|location| {
9796 let buffer = location.buffer.read(cx);
9797 format!(
9798 "References to `{}`",
9799 buffer
9800 .text_for_range(location.range.clone())
9801 .collect::<String>()
9802 )
9803 })
9804 .unwrap();
9805 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9806 Navigated::Yes
9807 })
9808 }))
9809 }
9810
9811 /// Opens a multibuffer with the given project locations in it
9812 pub fn open_locations_in_multibuffer(
9813 workspace: &mut Workspace,
9814 mut locations: Vec<Location>,
9815 title: String,
9816 split: bool,
9817 cx: &mut ViewContext<Workspace>,
9818 ) {
9819 // If there are multiple definitions, open them in a multibuffer
9820 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9821 let mut locations = locations.into_iter().peekable();
9822 let mut ranges_to_highlight = Vec::new();
9823 let capability = workspace.project().read(cx).capability();
9824
9825 let excerpt_buffer = cx.new_model(|cx| {
9826 let mut multibuffer = MultiBuffer::new(capability);
9827 while let Some(location) = locations.next() {
9828 let buffer = location.buffer.read(cx);
9829 let mut ranges_for_buffer = Vec::new();
9830 let range = location.range.to_offset(buffer);
9831 ranges_for_buffer.push(range.clone());
9832
9833 while let Some(next_location) = locations.peek() {
9834 if next_location.buffer == location.buffer {
9835 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9836 locations.next();
9837 } else {
9838 break;
9839 }
9840 }
9841
9842 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9843 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9844 location.buffer.clone(),
9845 ranges_for_buffer,
9846 DEFAULT_MULTIBUFFER_CONTEXT,
9847 cx,
9848 ))
9849 }
9850
9851 multibuffer.with_title(title)
9852 });
9853
9854 let editor = cx.new_view(|cx| {
9855 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9856 });
9857 editor.update(cx, |editor, cx| {
9858 if let Some(first_range) = ranges_to_highlight.first() {
9859 editor.change_selections(None, cx, |selections| {
9860 selections.clear_disjoint();
9861 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9862 });
9863 }
9864 editor.highlight_background::<Self>(
9865 &ranges_to_highlight,
9866 |theme| theme.editor_highlighted_line_background,
9867 cx,
9868 );
9869 editor.register_buffers_with_language_servers(cx);
9870 });
9871
9872 let item = Box::new(editor);
9873 let item_id = item.item_id();
9874
9875 if split {
9876 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9877 } else {
9878 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9879 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9880 pane.close_current_preview_item(cx)
9881 } else {
9882 None
9883 }
9884 });
9885 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9886 }
9887 workspace.active_pane().update(cx, |pane, cx| {
9888 pane.set_preview_item_id(Some(item_id), cx);
9889 });
9890 }
9891
9892 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9893 use language::ToOffset as _;
9894
9895 let provider = self.semantics_provider.clone()?;
9896 let selection = self.selections.newest_anchor().clone();
9897 let (cursor_buffer, cursor_buffer_position) = self
9898 .buffer
9899 .read(cx)
9900 .text_anchor_for_position(selection.head(), cx)?;
9901 let (tail_buffer, cursor_buffer_position_end) = self
9902 .buffer
9903 .read(cx)
9904 .text_anchor_for_position(selection.tail(), cx)?;
9905 if tail_buffer != cursor_buffer {
9906 return None;
9907 }
9908
9909 let snapshot = cursor_buffer.read(cx).snapshot();
9910 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9911 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9912 let prepare_rename = provider
9913 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9914 .unwrap_or_else(|| Task::ready(Ok(None)));
9915 drop(snapshot);
9916
9917 Some(cx.spawn(|this, mut cx| async move {
9918 let rename_range = if let Some(range) = prepare_rename.await? {
9919 Some(range)
9920 } else {
9921 this.update(&mut cx, |this, cx| {
9922 let buffer = this.buffer.read(cx).snapshot(cx);
9923 let mut buffer_highlights = this
9924 .document_highlights_for_position(selection.head(), &buffer)
9925 .filter(|highlight| {
9926 highlight.start.excerpt_id == selection.head().excerpt_id
9927 && highlight.end.excerpt_id == selection.head().excerpt_id
9928 });
9929 buffer_highlights
9930 .next()
9931 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9932 })?
9933 };
9934 if let Some(rename_range) = rename_range {
9935 this.update(&mut cx, |this, cx| {
9936 let snapshot = cursor_buffer.read(cx).snapshot();
9937 let rename_buffer_range = rename_range.to_offset(&snapshot);
9938 let cursor_offset_in_rename_range =
9939 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9940 let cursor_offset_in_rename_range_end =
9941 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9942
9943 this.take_rename(false, cx);
9944 let buffer = this.buffer.read(cx).read(cx);
9945 let cursor_offset = selection.head().to_offset(&buffer);
9946 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9947 let rename_end = rename_start + rename_buffer_range.len();
9948 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9949 let mut old_highlight_id = None;
9950 let old_name: Arc<str> = buffer
9951 .chunks(rename_start..rename_end, true)
9952 .map(|chunk| {
9953 if old_highlight_id.is_none() {
9954 old_highlight_id = chunk.syntax_highlight_id;
9955 }
9956 chunk.text
9957 })
9958 .collect::<String>()
9959 .into();
9960
9961 drop(buffer);
9962
9963 // Position the selection in the rename editor so that it matches the current selection.
9964 this.show_local_selections = false;
9965 let rename_editor = cx.new_view(|cx| {
9966 let mut editor = Editor::single_line(cx);
9967 editor.buffer.update(cx, |buffer, cx| {
9968 buffer.edit([(0..0, old_name.clone())], None, cx)
9969 });
9970 let rename_selection_range = match cursor_offset_in_rename_range
9971 .cmp(&cursor_offset_in_rename_range_end)
9972 {
9973 Ordering::Equal => {
9974 editor.select_all(&SelectAll, cx);
9975 return editor;
9976 }
9977 Ordering::Less => {
9978 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9979 }
9980 Ordering::Greater => {
9981 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9982 }
9983 };
9984 if rename_selection_range.end > old_name.len() {
9985 editor.select_all(&SelectAll, cx);
9986 } else {
9987 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9988 s.select_ranges([rename_selection_range]);
9989 });
9990 }
9991 editor
9992 });
9993 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9994 if e == &EditorEvent::Focused {
9995 cx.emit(EditorEvent::FocusedIn)
9996 }
9997 })
9998 .detach();
9999
10000 let write_highlights =
10001 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10002 let read_highlights =
10003 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10004 let ranges = write_highlights
10005 .iter()
10006 .flat_map(|(_, ranges)| ranges.iter())
10007 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10008 .cloned()
10009 .collect();
10010
10011 this.highlight_text::<Rename>(
10012 ranges,
10013 HighlightStyle {
10014 fade_out: Some(0.6),
10015 ..Default::default()
10016 },
10017 cx,
10018 );
10019 let rename_focus_handle = rename_editor.focus_handle(cx);
10020 cx.focus(&rename_focus_handle);
10021 let block_id = this.insert_blocks(
10022 [BlockProperties {
10023 style: BlockStyle::Flex,
10024 placement: BlockPlacement::Below(range.start),
10025 height: 1,
10026 render: Arc::new({
10027 let rename_editor = rename_editor.clone();
10028 move |cx: &mut BlockContext| {
10029 let mut text_style = cx.editor_style.text.clone();
10030 if let Some(highlight_style) = old_highlight_id
10031 .and_then(|h| h.style(&cx.editor_style.syntax))
10032 {
10033 text_style = text_style.highlight(highlight_style);
10034 }
10035 div()
10036 .block_mouse_down()
10037 .pl(cx.anchor_x)
10038 .child(EditorElement::new(
10039 &rename_editor,
10040 EditorStyle {
10041 background: cx.theme().system().transparent,
10042 local_player: cx.editor_style.local_player,
10043 text: text_style,
10044 scrollbar_width: cx.editor_style.scrollbar_width,
10045 syntax: cx.editor_style.syntax.clone(),
10046 status: cx.editor_style.status.clone(),
10047 inlay_hints_style: HighlightStyle {
10048 font_weight: Some(FontWeight::BOLD),
10049 ..make_inlay_hints_style(cx)
10050 },
10051 inline_completion_styles: make_suggestion_styles(
10052 cx,
10053 ),
10054 ..EditorStyle::default()
10055 },
10056 ))
10057 .into_any_element()
10058 }
10059 }),
10060 priority: 0,
10061 }],
10062 Some(Autoscroll::fit()),
10063 cx,
10064 )[0];
10065 this.pending_rename = Some(RenameState {
10066 range,
10067 old_name,
10068 editor: rename_editor,
10069 block_id,
10070 });
10071 })?;
10072 }
10073
10074 Ok(())
10075 }))
10076 }
10077
10078 pub fn confirm_rename(
10079 &mut self,
10080 _: &ConfirmRename,
10081 cx: &mut ViewContext<Self>,
10082 ) -> Option<Task<Result<()>>> {
10083 let rename = self.take_rename(false, cx)?;
10084 let workspace = self.workspace()?.downgrade();
10085 let (buffer, start) = self
10086 .buffer
10087 .read(cx)
10088 .text_anchor_for_position(rename.range.start, cx)?;
10089 let (end_buffer, _) = self
10090 .buffer
10091 .read(cx)
10092 .text_anchor_for_position(rename.range.end, cx)?;
10093 if buffer != end_buffer {
10094 return None;
10095 }
10096
10097 let old_name = rename.old_name;
10098 let new_name = rename.editor.read(cx).text(cx);
10099
10100 let rename = self.semantics_provider.as_ref()?.perform_rename(
10101 &buffer,
10102 start,
10103 new_name.clone(),
10104 cx,
10105 )?;
10106
10107 Some(cx.spawn(|editor, mut cx| async move {
10108 let project_transaction = rename.await?;
10109 Self::open_project_transaction(
10110 &editor,
10111 workspace,
10112 project_transaction,
10113 format!("Rename: {} → {}", old_name, new_name),
10114 cx.clone(),
10115 )
10116 .await?;
10117
10118 editor.update(&mut cx, |editor, cx| {
10119 editor.refresh_document_highlights(cx);
10120 })?;
10121 Ok(())
10122 }))
10123 }
10124
10125 fn take_rename(
10126 &mut self,
10127 moving_cursor: bool,
10128 cx: &mut ViewContext<Self>,
10129 ) -> Option<RenameState> {
10130 let rename = self.pending_rename.take()?;
10131 if rename.editor.focus_handle(cx).is_focused(cx) {
10132 cx.focus(&self.focus_handle);
10133 }
10134
10135 self.remove_blocks(
10136 [rename.block_id].into_iter().collect(),
10137 Some(Autoscroll::fit()),
10138 cx,
10139 );
10140 self.clear_highlights::<Rename>(cx);
10141 self.show_local_selections = true;
10142
10143 if moving_cursor {
10144 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10145 editor.selections.newest::<usize>(cx).head()
10146 });
10147
10148 // Update the selection to match the position of the selection inside
10149 // the rename editor.
10150 let snapshot = self.buffer.read(cx).read(cx);
10151 let rename_range = rename.range.to_offset(&snapshot);
10152 let cursor_in_editor = snapshot
10153 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10154 .min(rename_range.end);
10155 drop(snapshot);
10156
10157 self.change_selections(None, cx, |s| {
10158 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10159 });
10160 } else {
10161 self.refresh_document_highlights(cx);
10162 }
10163
10164 Some(rename)
10165 }
10166
10167 pub fn pending_rename(&self) -> Option<&RenameState> {
10168 self.pending_rename.as_ref()
10169 }
10170
10171 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10172 let project = match &self.project {
10173 Some(project) => project.clone(),
10174 None => return None,
10175 };
10176
10177 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10178 }
10179
10180 fn format_selections(
10181 &mut self,
10182 _: &FormatSelections,
10183 cx: &mut ViewContext<Self>,
10184 ) -> Option<Task<Result<()>>> {
10185 let project = match &self.project {
10186 Some(project) => project.clone(),
10187 None => return None,
10188 };
10189
10190 let selections = self
10191 .selections
10192 .all_adjusted(cx)
10193 .into_iter()
10194 .filter(|s| !s.is_empty())
10195 .collect_vec();
10196
10197 Some(self.perform_format(
10198 project,
10199 FormatTrigger::Manual,
10200 FormatTarget::Ranges(selections),
10201 cx,
10202 ))
10203 }
10204
10205 fn perform_format(
10206 &mut self,
10207 project: Model<Project>,
10208 trigger: FormatTrigger,
10209 target: FormatTarget,
10210 cx: &mut ViewContext<Self>,
10211 ) -> Task<Result<()>> {
10212 let buffer = self.buffer().clone();
10213 let mut buffers = buffer.read(cx).all_buffers();
10214 if trigger == FormatTrigger::Save {
10215 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10216 }
10217
10218 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10219 let format = project.update(cx, |project, cx| {
10220 project.format(buffers, true, trigger, target, cx)
10221 });
10222
10223 cx.spawn(|_, mut cx| async move {
10224 let transaction = futures::select_biased! {
10225 () = timeout => {
10226 log::warn!("timed out waiting for formatting");
10227 None
10228 }
10229 transaction = format.log_err().fuse() => transaction,
10230 };
10231
10232 buffer
10233 .update(&mut cx, |buffer, cx| {
10234 if let Some(transaction) = transaction {
10235 if !buffer.is_singleton() {
10236 buffer.push_transaction(&transaction.0, cx);
10237 }
10238 }
10239
10240 cx.notify();
10241 })
10242 .ok();
10243
10244 Ok(())
10245 })
10246 }
10247
10248 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10249 if let Some(project) = self.project.clone() {
10250 self.buffer.update(cx, |multi_buffer, cx| {
10251 project.update(cx, |project, cx| {
10252 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10253 });
10254 })
10255 }
10256 }
10257
10258 fn cancel_language_server_work(
10259 &mut self,
10260 _: &actions::CancelLanguageServerWork,
10261 cx: &mut ViewContext<Self>,
10262 ) {
10263 if let Some(project) = self.project.clone() {
10264 self.buffer.update(cx, |multi_buffer, cx| {
10265 project.update(cx, |project, cx| {
10266 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10267 });
10268 })
10269 }
10270 }
10271
10272 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10273 cx.show_character_palette();
10274 }
10275
10276 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10277 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10278 let buffer = self.buffer.read(cx).snapshot(cx);
10279 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10280 let is_valid = buffer
10281 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10282 .any(|entry| {
10283 entry.diagnostic.is_primary
10284 && !entry.range.is_empty()
10285 && entry.range.start == primary_range_start
10286 && entry.diagnostic.message == active_diagnostics.primary_message
10287 });
10288
10289 if is_valid != active_diagnostics.is_valid {
10290 active_diagnostics.is_valid = is_valid;
10291 let mut new_styles = HashMap::default();
10292 for (block_id, diagnostic) in &active_diagnostics.blocks {
10293 new_styles.insert(
10294 *block_id,
10295 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10296 );
10297 }
10298 self.display_map.update(cx, |display_map, _cx| {
10299 display_map.replace_blocks(new_styles)
10300 });
10301 }
10302 }
10303 }
10304
10305 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10306 self.dismiss_diagnostics(cx);
10307 let snapshot = self.snapshot(cx);
10308 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10309 let buffer = self.buffer.read(cx).snapshot(cx);
10310
10311 let mut primary_range = None;
10312 let mut primary_message = None;
10313 let mut group_end = Point::zero();
10314 let diagnostic_group = buffer
10315 .diagnostic_group::<MultiBufferPoint>(group_id)
10316 .filter_map(|entry| {
10317 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10318 && (entry.range.start.row == entry.range.end.row
10319 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10320 {
10321 return None;
10322 }
10323 if entry.range.end > group_end {
10324 group_end = entry.range.end;
10325 }
10326 if entry.diagnostic.is_primary {
10327 primary_range = Some(entry.range.clone());
10328 primary_message = Some(entry.diagnostic.message.clone());
10329 }
10330 Some(entry)
10331 })
10332 .collect::<Vec<_>>();
10333 let primary_range = primary_range?;
10334 let primary_message = primary_message?;
10335 let primary_range =
10336 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10337
10338 let blocks = display_map
10339 .insert_blocks(
10340 diagnostic_group.iter().map(|entry| {
10341 let diagnostic = entry.diagnostic.clone();
10342 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10343 BlockProperties {
10344 style: BlockStyle::Fixed,
10345 placement: BlockPlacement::Below(
10346 buffer.anchor_after(entry.range.start),
10347 ),
10348 height: message_height,
10349 render: diagnostic_block_renderer(diagnostic, None, true, true),
10350 priority: 0,
10351 }
10352 }),
10353 cx,
10354 )
10355 .into_iter()
10356 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10357 .collect();
10358
10359 Some(ActiveDiagnosticGroup {
10360 primary_range,
10361 primary_message,
10362 group_id,
10363 blocks,
10364 is_valid: true,
10365 })
10366 });
10367 self.active_diagnostics.is_some()
10368 }
10369
10370 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10371 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10372 self.display_map.update(cx, |display_map, cx| {
10373 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10374 });
10375 cx.notify();
10376 }
10377 }
10378
10379 pub fn set_selections_from_remote(
10380 &mut self,
10381 selections: Vec<Selection<Anchor>>,
10382 pending_selection: Option<Selection<Anchor>>,
10383 cx: &mut ViewContext<Self>,
10384 ) {
10385 let old_cursor_position = self.selections.newest_anchor().head();
10386 self.selections.change_with(cx, |s| {
10387 s.select_anchors(selections);
10388 if let Some(pending_selection) = pending_selection {
10389 s.set_pending(pending_selection, SelectMode::Character);
10390 } else {
10391 s.clear_pending();
10392 }
10393 });
10394 self.selections_did_change(false, &old_cursor_position, true, cx);
10395 }
10396
10397 fn push_to_selection_history(&mut self) {
10398 self.selection_history.push(SelectionHistoryEntry {
10399 selections: self.selections.disjoint_anchors(),
10400 select_next_state: self.select_next_state.clone(),
10401 select_prev_state: self.select_prev_state.clone(),
10402 add_selections_state: self.add_selections_state.clone(),
10403 });
10404 }
10405
10406 pub fn transact(
10407 &mut self,
10408 cx: &mut ViewContext<Self>,
10409 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10410 ) -> Option<TransactionId> {
10411 self.start_transaction_at(Instant::now(), cx);
10412 update(self, cx);
10413 self.end_transaction_at(Instant::now(), cx)
10414 }
10415
10416 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10417 self.end_selection(cx);
10418 if let Some(tx_id) = self
10419 .buffer
10420 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10421 {
10422 self.selection_history
10423 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10424 cx.emit(EditorEvent::TransactionBegun {
10425 transaction_id: tx_id,
10426 })
10427 }
10428 }
10429
10430 pub fn end_transaction_at(
10431 &mut self,
10432 now: Instant,
10433 cx: &mut ViewContext<Self>,
10434 ) -> Option<TransactionId> {
10435 if let Some(transaction_id) = self
10436 .buffer
10437 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10438 {
10439 if let Some((_, end_selections)) =
10440 self.selection_history.transaction_mut(transaction_id)
10441 {
10442 *end_selections = Some(self.selections.disjoint_anchors());
10443 } else {
10444 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10445 }
10446
10447 cx.emit(EditorEvent::Edited { transaction_id });
10448 Some(transaction_id)
10449 } else {
10450 None
10451 }
10452 }
10453
10454 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10455 if self.is_singleton(cx) {
10456 let selection = self.selections.newest::<Point>(cx);
10457
10458 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10459 let range = if selection.is_empty() {
10460 let point = selection.head().to_display_point(&display_map);
10461 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10462 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10463 .to_point(&display_map);
10464 start..end
10465 } else {
10466 selection.range()
10467 };
10468 if display_map.folds_in_range(range).next().is_some() {
10469 self.unfold_lines(&Default::default(), cx)
10470 } else {
10471 self.fold(&Default::default(), cx)
10472 }
10473 } else {
10474 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10475 let mut toggled_buffers = HashSet::default();
10476 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10477 self.selections
10478 .disjoint_anchors()
10479 .into_iter()
10480 .map(|selection| selection.range()),
10481 ) {
10482 let buffer_id = buffer_snapshot.remote_id();
10483 if toggled_buffers.insert(buffer_id) {
10484 if self.buffer_folded(buffer_id, cx) {
10485 self.unfold_buffer(buffer_id, cx);
10486 } else {
10487 self.fold_buffer(buffer_id, cx);
10488 }
10489 }
10490 }
10491 }
10492 }
10493
10494 pub fn toggle_fold_recursive(
10495 &mut self,
10496 _: &actions::ToggleFoldRecursive,
10497 cx: &mut ViewContext<Self>,
10498 ) {
10499 let selection = self.selections.newest::<Point>(cx);
10500
10501 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10502 let range = if selection.is_empty() {
10503 let point = selection.head().to_display_point(&display_map);
10504 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10505 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10506 .to_point(&display_map);
10507 start..end
10508 } else {
10509 selection.range()
10510 };
10511 if display_map.folds_in_range(range).next().is_some() {
10512 self.unfold_recursive(&Default::default(), cx)
10513 } else {
10514 self.fold_recursive(&Default::default(), cx)
10515 }
10516 }
10517
10518 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10519 if self.is_singleton(cx) {
10520 let mut to_fold = Vec::new();
10521 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10522 let selections = self.selections.all_adjusted(cx);
10523
10524 for selection in selections {
10525 let range = selection.range().sorted();
10526 let buffer_start_row = range.start.row;
10527
10528 if range.start.row != range.end.row {
10529 let mut found = false;
10530 let mut row = range.start.row;
10531 while row <= range.end.row {
10532 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10533 {
10534 found = true;
10535 row = crease.range().end.row + 1;
10536 to_fold.push(crease);
10537 } else {
10538 row += 1
10539 }
10540 }
10541 if found {
10542 continue;
10543 }
10544 }
10545
10546 for row in (0..=range.start.row).rev() {
10547 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10548 if crease.range().end.row >= buffer_start_row {
10549 to_fold.push(crease);
10550 if row <= range.start.row {
10551 break;
10552 }
10553 }
10554 }
10555 }
10556 }
10557
10558 self.fold_creases(to_fold, true, cx);
10559 } else {
10560 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10561 let mut folded_buffers = HashSet::default();
10562 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10563 self.selections
10564 .disjoint_anchors()
10565 .into_iter()
10566 .map(|selection| selection.range()),
10567 ) {
10568 let buffer_id = buffer_snapshot.remote_id();
10569 if folded_buffers.insert(buffer_id) {
10570 self.fold_buffer(buffer_id, cx);
10571 }
10572 }
10573 }
10574 }
10575
10576 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10577 if !self.buffer.read(cx).is_singleton() {
10578 return;
10579 }
10580
10581 let fold_at_level = fold_at.level;
10582 let snapshot = self.buffer.read(cx).snapshot(cx);
10583 let mut to_fold = Vec::new();
10584 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10585
10586 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10587 while start_row < end_row {
10588 match self
10589 .snapshot(cx)
10590 .crease_for_buffer_row(MultiBufferRow(start_row))
10591 {
10592 Some(crease) => {
10593 let nested_start_row = crease.range().start.row + 1;
10594 let nested_end_row = crease.range().end.row;
10595
10596 if current_level < fold_at_level {
10597 stack.push((nested_start_row, nested_end_row, current_level + 1));
10598 } else if current_level == fold_at_level {
10599 to_fold.push(crease);
10600 }
10601
10602 start_row = nested_end_row + 1;
10603 }
10604 None => start_row += 1,
10605 }
10606 }
10607 }
10608
10609 self.fold_creases(to_fold, true, cx);
10610 }
10611
10612 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10613 if self.buffer.read(cx).is_singleton() {
10614 let mut fold_ranges = Vec::new();
10615 let snapshot = self.buffer.read(cx).snapshot(cx);
10616
10617 for row in 0..snapshot.max_row().0 {
10618 if let Some(foldable_range) =
10619 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10620 {
10621 fold_ranges.push(foldable_range);
10622 }
10623 }
10624
10625 self.fold_creases(fold_ranges, true, cx);
10626 } else {
10627 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10628 editor
10629 .update(&mut cx, |editor, cx| {
10630 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10631 editor.fold_buffer(buffer_id, cx);
10632 }
10633 })
10634 .ok();
10635 });
10636 }
10637 }
10638
10639 pub fn fold_function_bodies(
10640 &mut self,
10641 _: &actions::FoldFunctionBodies,
10642 cx: &mut ViewContext<Self>,
10643 ) {
10644 let snapshot = self.buffer.read(cx).snapshot(cx);
10645 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10646 return;
10647 };
10648 let creases = buffer
10649 .function_body_fold_ranges(0..buffer.len())
10650 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10651 .collect();
10652
10653 self.fold_creases(creases, true, cx);
10654 }
10655
10656 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10657 let mut to_fold = Vec::new();
10658 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10659 let selections = self.selections.all_adjusted(cx);
10660
10661 for selection in selections {
10662 let range = selection.range().sorted();
10663 let buffer_start_row = range.start.row;
10664
10665 if range.start.row != range.end.row {
10666 let mut found = false;
10667 for row in range.start.row..=range.end.row {
10668 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10669 found = true;
10670 to_fold.push(crease);
10671 }
10672 }
10673 if found {
10674 continue;
10675 }
10676 }
10677
10678 for row in (0..=range.start.row).rev() {
10679 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10680 if crease.range().end.row >= buffer_start_row {
10681 to_fold.push(crease);
10682 } else {
10683 break;
10684 }
10685 }
10686 }
10687 }
10688
10689 self.fold_creases(to_fold, true, cx);
10690 }
10691
10692 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10693 let buffer_row = fold_at.buffer_row;
10694 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10695
10696 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10697 let autoscroll = self
10698 .selections
10699 .all::<Point>(cx)
10700 .iter()
10701 .any(|selection| crease.range().overlaps(&selection.range()));
10702
10703 self.fold_creases(vec![crease], autoscroll, cx);
10704 }
10705 }
10706
10707 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10708 if self.is_singleton(cx) {
10709 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10710 let buffer = &display_map.buffer_snapshot;
10711 let selections = self.selections.all::<Point>(cx);
10712 let ranges = selections
10713 .iter()
10714 .map(|s| {
10715 let range = s.display_range(&display_map).sorted();
10716 let mut start = range.start.to_point(&display_map);
10717 let mut end = range.end.to_point(&display_map);
10718 start.column = 0;
10719 end.column = buffer.line_len(MultiBufferRow(end.row));
10720 start..end
10721 })
10722 .collect::<Vec<_>>();
10723
10724 self.unfold_ranges(&ranges, true, true, cx);
10725 } else {
10726 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10727 let mut unfolded_buffers = HashSet::default();
10728 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10729 self.selections
10730 .disjoint_anchors()
10731 .into_iter()
10732 .map(|selection| selection.range()),
10733 ) {
10734 let buffer_id = buffer_snapshot.remote_id();
10735 if unfolded_buffers.insert(buffer_id) {
10736 self.unfold_buffer(buffer_id, cx);
10737 }
10738 }
10739 }
10740 }
10741
10742 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10743 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10744 let selections = self.selections.all::<Point>(cx);
10745 let ranges = selections
10746 .iter()
10747 .map(|s| {
10748 let mut range = s.display_range(&display_map).sorted();
10749 *range.start.column_mut() = 0;
10750 *range.end.column_mut() = display_map.line_len(range.end.row());
10751 let start = range.start.to_point(&display_map);
10752 let end = range.end.to_point(&display_map);
10753 start..end
10754 })
10755 .collect::<Vec<_>>();
10756
10757 self.unfold_ranges(&ranges, true, true, cx);
10758 }
10759
10760 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10761 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10762
10763 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10764 ..Point::new(
10765 unfold_at.buffer_row.0,
10766 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10767 );
10768
10769 let autoscroll = self
10770 .selections
10771 .all::<Point>(cx)
10772 .iter()
10773 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10774
10775 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10776 }
10777
10778 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10779 if self.buffer.read(cx).is_singleton() {
10780 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10781 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10782 } else {
10783 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10784 editor
10785 .update(&mut cx, |editor, cx| {
10786 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10787 editor.unfold_buffer(buffer_id, cx);
10788 }
10789 })
10790 .ok();
10791 });
10792 }
10793 }
10794
10795 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10796 let selections = self.selections.all::<Point>(cx);
10797 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10798 let line_mode = self.selections.line_mode;
10799 let ranges = selections
10800 .into_iter()
10801 .map(|s| {
10802 if line_mode {
10803 let start = Point::new(s.start.row, 0);
10804 let end = Point::new(
10805 s.end.row,
10806 display_map
10807 .buffer_snapshot
10808 .line_len(MultiBufferRow(s.end.row)),
10809 );
10810 Crease::simple(start..end, display_map.fold_placeholder.clone())
10811 } else {
10812 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10813 }
10814 })
10815 .collect::<Vec<_>>();
10816 self.fold_creases(ranges, true, cx);
10817 }
10818
10819 pub fn fold_creases<T: ToOffset + Clone>(
10820 &mut self,
10821 creases: Vec<Crease<T>>,
10822 auto_scroll: bool,
10823 cx: &mut ViewContext<Self>,
10824 ) {
10825 if creases.is_empty() {
10826 return;
10827 }
10828
10829 let mut buffers_affected = HashSet::default();
10830 let multi_buffer = self.buffer().read(cx);
10831 for crease in &creases {
10832 if let Some((_, buffer, _)) =
10833 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10834 {
10835 buffers_affected.insert(buffer.read(cx).remote_id());
10836 };
10837 }
10838
10839 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10840
10841 if auto_scroll {
10842 self.request_autoscroll(Autoscroll::fit(), cx);
10843 }
10844
10845 for buffer_id in buffers_affected {
10846 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10847 }
10848
10849 cx.notify();
10850
10851 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10852 // Clear diagnostics block when folding a range that contains it.
10853 let snapshot = self.snapshot(cx);
10854 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10855 drop(snapshot);
10856 self.active_diagnostics = Some(active_diagnostics);
10857 self.dismiss_diagnostics(cx);
10858 } else {
10859 self.active_diagnostics = Some(active_diagnostics);
10860 }
10861 }
10862
10863 self.scrollbar_marker_state.dirty = true;
10864 }
10865
10866 /// Removes any folds whose ranges intersect any of the given ranges.
10867 pub fn unfold_ranges<T: ToOffset + Clone>(
10868 &mut self,
10869 ranges: &[Range<T>],
10870 inclusive: bool,
10871 auto_scroll: bool,
10872 cx: &mut ViewContext<Self>,
10873 ) {
10874 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10875 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10876 });
10877 }
10878
10879 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10880 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10881 return;
10882 }
10883 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10884 return;
10885 };
10886 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10887 self.display_map
10888 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10889 cx.emit(EditorEvent::BufferFoldToggled {
10890 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10891 folded: true,
10892 });
10893 cx.notify();
10894 }
10895
10896 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10897 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10898 return;
10899 }
10900 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10901 return;
10902 };
10903 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10904 self.display_map.update(cx, |display_map, cx| {
10905 display_map.unfold_buffer(buffer_id, cx);
10906 });
10907 cx.emit(EditorEvent::BufferFoldToggled {
10908 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10909 folded: false,
10910 });
10911 cx.notify();
10912 }
10913
10914 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10915 self.display_map.read(cx).buffer_folded(buffer)
10916 }
10917
10918 /// Removes any folds with the given ranges.
10919 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10920 &mut self,
10921 ranges: &[Range<T>],
10922 type_id: TypeId,
10923 auto_scroll: bool,
10924 cx: &mut ViewContext<Self>,
10925 ) {
10926 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10927 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10928 });
10929 }
10930
10931 fn remove_folds_with<T: ToOffset + Clone>(
10932 &mut self,
10933 ranges: &[Range<T>],
10934 auto_scroll: bool,
10935 cx: &mut ViewContext<Self>,
10936 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10937 ) {
10938 if ranges.is_empty() {
10939 return;
10940 }
10941
10942 let mut buffers_affected = HashSet::default();
10943 let multi_buffer = self.buffer().read(cx);
10944 for range in ranges {
10945 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10946 buffers_affected.insert(buffer.read(cx).remote_id());
10947 };
10948 }
10949
10950 self.display_map.update(cx, update);
10951
10952 if auto_scroll {
10953 self.request_autoscroll(Autoscroll::fit(), cx);
10954 }
10955
10956 for buffer_id in buffers_affected {
10957 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10958 }
10959
10960 cx.notify();
10961 self.scrollbar_marker_state.dirty = true;
10962 self.active_indent_guides_state.dirty = true;
10963 }
10964
10965 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10966 self.display_map.read(cx).fold_placeholder.clone()
10967 }
10968
10969 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10970 if hovered != self.gutter_hovered {
10971 self.gutter_hovered = hovered;
10972 cx.notify();
10973 }
10974 }
10975
10976 pub fn insert_blocks(
10977 &mut self,
10978 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10979 autoscroll: Option<Autoscroll>,
10980 cx: &mut ViewContext<Self>,
10981 ) -> Vec<CustomBlockId> {
10982 let blocks = self
10983 .display_map
10984 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10985 if let Some(autoscroll) = autoscroll {
10986 self.request_autoscroll(autoscroll, cx);
10987 }
10988 cx.notify();
10989 blocks
10990 }
10991
10992 pub fn resize_blocks(
10993 &mut self,
10994 heights: HashMap<CustomBlockId, u32>,
10995 autoscroll: Option<Autoscroll>,
10996 cx: &mut ViewContext<Self>,
10997 ) {
10998 self.display_map
10999 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11000 if let Some(autoscroll) = autoscroll {
11001 self.request_autoscroll(autoscroll, cx);
11002 }
11003 cx.notify();
11004 }
11005
11006 pub fn replace_blocks(
11007 &mut self,
11008 renderers: HashMap<CustomBlockId, RenderBlock>,
11009 autoscroll: Option<Autoscroll>,
11010 cx: &mut ViewContext<Self>,
11011 ) {
11012 self.display_map
11013 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11014 if let Some(autoscroll) = autoscroll {
11015 self.request_autoscroll(autoscroll, cx);
11016 }
11017 cx.notify();
11018 }
11019
11020 pub fn remove_blocks(
11021 &mut self,
11022 block_ids: HashSet<CustomBlockId>,
11023 autoscroll: Option<Autoscroll>,
11024 cx: &mut ViewContext<Self>,
11025 ) {
11026 self.display_map.update(cx, |display_map, cx| {
11027 display_map.remove_blocks(block_ids, cx)
11028 });
11029 if let Some(autoscroll) = autoscroll {
11030 self.request_autoscroll(autoscroll, cx);
11031 }
11032 cx.notify();
11033 }
11034
11035 pub fn row_for_block(
11036 &self,
11037 block_id: CustomBlockId,
11038 cx: &mut ViewContext<Self>,
11039 ) -> Option<DisplayRow> {
11040 self.display_map
11041 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11042 }
11043
11044 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11045 self.focused_block = Some(focused_block);
11046 }
11047
11048 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11049 self.focused_block.take()
11050 }
11051
11052 pub fn insert_creases(
11053 &mut self,
11054 creases: impl IntoIterator<Item = Crease<Anchor>>,
11055 cx: &mut ViewContext<Self>,
11056 ) -> Vec<CreaseId> {
11057 self.display_map
11058 .update(cx, |map, cx| map.insert_creases(creases, cx))
11059 }
11060
11061 pub fn remove_creases(
11062 &mut self,
11063 ids: impl IntoIterator<Item = CreaseId>,
11064 cx: &mut ViewContext<Self>,
11065 ) {
11066 self.display_map
11067 .update(cx, |map, cx| map.remove_creases(ids, cx));
11068 }
11069
11070 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11071 self.display_map
11072 .update(cx, |map, cx| map.snapshot(cx))
11073 .longest_row()
11074 }
11075
11076 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11077 self.display_map
11078 .update(cx, |map, cx| map.snapshot(cx))
11079 .max_point()
11080 }
11081
11082 pub fn text(&self, cx: &AppContext) -> String {
11083 self.buffer.read(cx).read(cx).text()
11084 }
11085
11086 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11087 let text = self.text(cx);
11088 let text = text.trim();
11089
11090 if text.is_empty() {
11091 return None;
11092 }
11093
11094 Some(text.to_string())
11095 }
11096
11097 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11098 self.transact(cx, |this, cx| {
11099 this.buffer
11100 .read(cx)
11101 .as_singleton()
11102 .expect("you can only call set_text on editors for singleton buffers")
11103 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11104 });
11105 }
11106
11107 pub fn display_text(&self, cx: &mut AppContext) -> String {
11108 self.display_map
11109 .update(cx, |map, cx| map.snapshot(cx))
11110 .text()
11111 }
11112
11113 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11114 let mut wrap_guides = smallvec::smallvec![];
11115
11116 if self.show_wrap_guides == Some(false) {
11117 return wrap_guides;
11118 }
11119
11120 let settings = self.buffer.read(cx).settings_at(0, cx);
11121 if settings.show_wrap_guides {
11122 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11123 wrap_guides.push((soft_wrap as usize, true));
11124 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11125 wrap_guides.push((soft_wrap as usize, true));
11126 }
11127 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11128 }
11129
11130 wrap_guides
11131 }
11132
11133 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11134 let settings = self.buffer.read(cx).settings_at(0, cx);
11135 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11136 match mode {
11137 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11138 SoftWrap::None
11139 }
11140 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11141 language_settings::SoftWrap::PreferredLineLength => {
11142 SoftWrap::Column(settings.preferred_line_length)
11143 }
11144 language_settings::SoftWrap::Bounded => {
11145 SoftWrap::Bounded(settings.preferred_line_length)
11146 }
11147 }
11148 }
11149
11150 pub fn set_soft_wrap_mode(
11151 &mut self,
11152 mode: language_settings::SoftWrap,
11153 cx: &mut ViewContext<Self>,
11154 ) {
11155 self.soft_wrap_mode_override = Some(mode);
11156 cx.notify();
11157 }
11158
11159 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11160 self.text_style_refinement = Some(style);
11161 }
11162
11163 /// called by the Element so we know what style we were most recently rendered with.
11164 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11165 let rem_size = cx.rem_size();
11166 self.display_map.update(cx, |map, cx| {
11167 map.set_font(
11168 style.text.font(),
11169 style.text.font_size.to_pixels(rem_size),
11170 cx,
11171 )
11172 });
11173 self.style = Some(style);
11174 }
11175
11176 pub fn style(&self) -> Option<&EditorStyle> {
11177 self.style.as_ref()
11178 }
11179
11180 // Called by the element. This method is not designed to be called outside of the editor
11181 // element's layout code because it does not notify when rewrapping is computed synchronously.
11182 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11183 self.display_map
11184 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11185 }
11186
11187 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11188 if self.soft_wrap_mode_override.is_some() {
11189 self.soft_wrap_mode_override.take();
11190 } else {
11191 let soft_wrap = match self.soft_wrap_mode(cx) {
11192 SoftWrap::GitDiff => return,
11193 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11194 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11195 language_settings::SoftWrap::None
11196 }
11197 };
11198 self.soft_wrap_mode_override = Some(soft_wrap);
11199 }
11200 cx.notify();
11201 }
11202
11203 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11204 let Some(workspace) = self.workspace() else {
11205 return;
11206 };
11207 let fs = workspace.read(cx).app_state().fs.clone();
11208 let current_show = TabBarSettings::get_global(cx).show;
11209 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11210 setting.show = Some(!current_show);
11211 });
11212 }
11213
11214 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11215 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11216 self.buffer
11217 .read(cx)
11218 .settings_at(0, cx)
11219 .indent_guides
11220 .enabled
11221 });
11222 self.show_indent_guides = Some(!currently_enabled);
11223 cx.notify();
11224 }
11225
11226 fn should_show_indent_guides(&self) -> Option<bool> {
11227 self.show_indent_guides
11228 }
11229
11230 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11231 let mut editor_settings = EditorSettings::get_global(cx).clone();
11232 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11233 EditorSettings::override_global(editor_settings, cx);
11234 }
11235
11236 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11237 self.use_relative_line_numbers
11238 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11239 }
11240
11241 pub fn toggle_relative_line_numbers(
11242 &mut self,
11243 _: &ToggleRelativeLineNumbers,
11244 cx: &mut ViewContext<Self>,
11245 ) {
11246 let is_relative = self.should_use_relative_line_numbers(cx);
11247 self.set_relative_line_number(Some(!is_relative), cx)
11248 }
11249
11250 pub fn set_relative_line_number(
11251 &mut self,
11252 is_relative: Option<bool>,
11253 cx: &mut ViewContext<Self>,
11254 ) {
11255 self.use_relative_line_numbers = is_relative;
11256 cx.notify();
11257 }
11258
11259 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11260 self.show_gutter = show_gutter;
11261 cx.notify();
11262 }
11263
11264 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11265 self.show_line_numbers = Some(show_line_numbers);
11266 cx.notify();
11267 }
11268
11269 pub fn set_show_git_diff_gutter(
11270 &mut self,
11271 show_git_diff_gutter: bool,
11272 cx: &mut ViewContext<Self>,
11273 ) {
11274 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11275 cx.notify();
11276 }
11277
11278 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11279 self.show_code_actions = Some(show_code_actions);
11280 cx.notify();
11281 }
11282
11283 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11284 self.show_runnables = Some(show_runnables);
11285 cx.notify();
11286 }
11287
11288 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11289 if self.display_map.read(cx).masked != masked {
11290 self.display_map.update(cx, |map, _| map.masked = masked);
11291 }
11292 cx.notify()
11293 }
11294
11295 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11296 self.show_wrap_guides = Some(show_wrap_guides);
11297 cx.notify();
11298 }
11299
11300 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11301 self.show_indent_guides = Some(show_indent_guides);
11302 cx.notify();
11303 }
11304
11305 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11306 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11307 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11308 if let Some(dir) = file.abs_path(cx).parent() {
11309 return Some(dir.to_owned());
11310 }
11311 }
11312
11313 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11314 return Some(project_path.path.to_path_buf());
11315 }
11316 }
11317
11318 None
11319 }
11320
11321 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11322 self.active_excerpt(cx)?
11323 .1
11324 .read(cx)
11325 .file()
11326 .and_then(|f| f.as_local())
11327 }
11328
11329 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11330 if let Some(target) = self.target_file(cx) {
11331 cx.reveal_path(&target.abs_path(cx));
11332 }
11333 }
11334
11335 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11336 if let Some(file) = self.target_file(cx) {
11337 if let Some(path) = file.abs_path(cx).to_str() {
11338 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11339 }
11340 }
11341 }
11342
11343 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11344 if let Some(file) = self.target_file(cx) {
11345 if let Some(path) = file.path().to_str() {
11346 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11347 }
11348 }
11349 }
11350
11351 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11352 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11353
11354 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11355 self.start_git_blame(true, cx);
11356 }
11357
11358 cx.notify();
11359 }
11360
11361 pub fn toggle_git_blame_inline(
11362 &mut self,
11363 _: &ToggleGitBlameInline,
11364 cx: &mut ViewContext<Self>,
11365 ) {
11366 self.toggle_git_blame_inline_internal(true, cx);
11367 cx.notify();
11368 }
11369
11370 pub fn git_blame_inline_enabled(&self) -> bool {
11371 self.git_blame_inline_enabled
11372 }
11373
11374 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11375 self.show_selection_menu = self
11376 .show_selection_menu
11377 .map(|show_selections_menu| !show_selections_menu)
11378 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11379
11380 cx.notify();
11381 }
11382
11383 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11384 self.show_selection_menu
11385 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11386 }
11387
11388 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11389 if let Some(project) = self.project.as_ref() {
11390 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11391 return;
11392 };
11393
11394 if buffer.read(cx).file().is_none() {
11395 return;
11396 }
11397
11398 let focused = self.focus_handle(cx).contains_focused(cx);
11399
11400 let project = project.clone();
11401 let blame =
11402 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11403 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11404 self.blame = Some(blame);
11405 }
11406 }
11407
11408 fn toggle_git_blame_inline_internal(
11409 &mut self,
11410 user_triggered: bool,
11411 cx: &mut ViewContext<Self>,
11412 ) {
11413 if self.git_blame_inline_enabled {
11414 self.git_blame_inline_enabled = false;
11415 self.show_git_blame_inline = false;
11416 self.show_git_blame_inline_delay_task.take();
11417 } else {
11418 self.git_blame_inline_enabled = true;
11419 self.start_git_blame_inline(user_triggered, cx);
11420 }
11421
11422 cx.notify();
11423 }
11424
11425 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11426 self.start_git_blame(user_triggered, cx);
11427
11428 if ProjectSettings::get_global(cx)
11429 .git
11430 .inline_blame_delay()
11431 .is_some()
11432 {
11433 self.start_inline_blame_timer(cx);
11434 } else {
11435 self.show_git_blame_inline = true
11436 }
11437 }
11438
11439 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11440 self.blame.as_ref()
11441 }
11442
11443 pub fn show_git_blame_gutter(&self) -> bool {
11444 self.show_git_blame_gutter
11445 }
11446
11447 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11448 self.show_git_blame_gutter && self.has_blame_entries(cx)
11449 }
11450
11451 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11452 self.show_git_blame_inline
11453 && self.focus_handle.is_focused(cx)
11454 && !self.newest_selection_head_on_empty_line(cx)
11455 && self.has_blame_entries(cx)
11456 }
11457
11458 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11459 self.blame()
11460 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11461 }
11462
11463 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11464 let cursor_anchor = self.selections.newest_anchor().head();
11465
11466 let snapshot = self.buffer.read(cx).snapshot(cx);
11467 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11468
11469 snapshot.line_len(buffer_row) == 0
11470 }
11471
11472 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11473 let buffer_and_selection = maybe!({
11474 let selection = self.selections.newest::<Point>(cx);
11475 let selection_range = selection.range();
11476
11477 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11478 (buffer, selection_range.start.row..selection_range.end.row)
11479 } else {
11480 let buffer_ranges = self
11481 .buffer()
11482 .read(cx)
11483 .range_to_buffer_ranges(selection_range, cx);
11484
11485 let (buffer, range, _) = if selection.reversed {
11486 buffer_ranges.first()
11487 } else {
11488 buffer_ranges.last()
11489 }?;
11490
11491 let snapshot = buffer.read(cx).snapshot();
11492 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11493 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11494 (buffer.clone(), selection)
11495 };
11496
11497 Some((buffer, selection))
11498 });
11499
11500 let Some((buffer, selection)) = buffer_and_selection else {
11501 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11502 };
11503
11504 let Some(project) = self.project.as_ref() else {
11505 return Task::ready(Err(anyhow!("editor does not have project")));
11506 };
11507
11508 project.update(cx, |project, cx| {
11509 project.get_permalink_to_line(&buffer, selection, cx)
11510 })
11511 }
11512
11513 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11514 let permalink_task = self.get_permalink_to_line(cx);
11515 let workspace = self.workspace();
11516
11517 cx.spawn(|_, mut cx| async move {
11518 match permalink_task.await {
11519 Ok(permalink) => {
11520 cx.update(|cx| {
11521 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11522 })
11523 .ok();
11524 }
11525 Err(err) => {
11526 let message = format!("Failed to copy permalink: {err}");
11527
11528 Err::<(), anyhow::Error>(err).log_err();
11529
11530 if let Some(workspace) = workspace {
11531 workspace
11532 .update(&mut cx, |workspace, cx| {
11533 struct CopyPermalinkToLine;
11534
11535 workspace.show_toast(
11536 Toast::new(
11537 NotificationId::unique::<CopyPermalinkToLine>(),
11538 message,
11539 ),
11540 cx,
11541 )
11542 })
11543 .ok();
11544 }
11545 }
11546 }
11547 })
11548 .detach();
11549 }
11550
11551 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11552 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11553 if let Some(file) = self.target_file(cx) {
11554 if let Some(path) = file.path().to_str() {
11555 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11556 }
11557 }
11558 }
11559
11560 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11561 let permalink_task = self.get_permalink_to_line(cx);
11562 let workspace = self.workspace();
11563
11564 cx.spawn(|_, mut cx| async move {
11565 match permalink_task.await {
11566 Ok(permalink) => {
11567 cx.update(|cx| {
11568 cx.open_url(permalink.as_ref());
11569 })
11570 .ok();
11571 }
11572 Err(err) => {
11573 let message = format!("Failed to open permalink: {err}");
11574
11575 Err::<(), anyhow::Error>(err).log_err();
11576
11577 if let Some(workspace) = workspace {
11578 workspace
11579 .update(&mut cx, |workspace, cx| {
11580 struct OpenPermalinkToLine;
11581
11582 workspace.show_toast(
11583 Toast::new(
11584 NotificationId::unique::<OpenPermalinkToLine>(),
11585 message,
11586 ),
11587 cx,
11588 )
11589 })
11590 .ok();
11591 }
11592 }
11593 }
11594 })
11595 .detach();
11596 }
11597
11598 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11599 self.insert_uuid(UuidVersion::V4, cx);
11600 }
11601
11602 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11603 self.insert_uuid(UuidVersion::V7, cx);
11604 }
11605
11606 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11607 self.transact(cx, |this, cx| {
11608 let edits = this
11609 .selections
11610 .all::<Point>(cx)
11611 .into_iter()
11612 .map(|selection| {
11613 let uuid = match version {
11614 UuidVersion::V4 => uuid::Uuid::new_v4(),
11615 UuidVersion::V7 => uuid::Uuid::now_v7(),
11616 };
11617
11618 (selection.range(), uuid.to_string())
11619 });
11620 this.edit(edits, cx);
11621 this.refresh_inline_completion(true, false, cx);
11622 });
11623 }
11624
11625 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11626 /// last highlight added will be used.
11627 ///
11628 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11629 pub fn highlight_rows<T: 'static>(
11630 &mut self,
11631 range: Range<Anchor>,
11632 color: Hsla,
11633 should_autoscroll: bool,
11634 cx: &mut ViewContext<Self>,
11635 ) {
11636 let snapshot = self.buffer().read(cx).snapshot(cx);
11637 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11638 let ix = row_highlights.binary_search_by(|highlight| {
11639 Ordering::Equal
11640 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11641 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11642 });
11643
11644 if let Err(mut ix) = ix {
11645 let index = post_inc(&mut self.highlight_order);
11646
11647 // If this range intersects with the preceding highlight, then merge it with
11648 // the preceding highlight. Otherwise insert a new highlight.
11649 let mut merged = false;
11650 if ix > 0 {
11651 let prev_highlight = &mut row_highlights[ix - 1];
11652 if prev_highlight
11653 .range
11654 .end
11655 .cmp(&range.start, &snapshot)
11656 .is_ge()
11657 {
11658 ix -= 1;
11659 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11660 prev_highlight.range.end = range.end;
11661 }
11662 merged = true;
11663 prev_highlight.index = index;
11664 prev_highlight.color = color;
11665 prev_highlight.should_autoscroll = should_autoscroll;
11666 }
11667 }
11668
11669 if !merged {
11670 row_highlights.insert(
11671 ix,
11672 RowHighlight {
11673 range: range.clone(),
11674 index,
11675 color,
11676 should_autoscroll,
11677 },
11678 );
11679 }
11680
11681 // If any of the following highlights intersect with this one, merge them.
11682 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11683 let highlight = &row_highlights[ix];
11684 if next_highlight
11685 .range
11686 .start
11687 .cmp(&highlight.range.end, &snapshot)
11688 .is_le()
11689 {
11690 if next_highlight
11691 .range
11692 .end
11693 .cmp(&highlight.range.end, &snapshot)
11694 .is_gt()
11695 {
11696 row_highlights[ix].range.end = next_highlight.range.end;
11697 }
11698 row_highlights.remove(ix + 1);
11699 } else {
11700 break;
11701 }
11702 }
11703 }
11704 }
11705
11706 /// Remove any highlighted row ranges of the given type that intersect the
11707 /// given ranges.
11708 pub fn remove_highlighted_rows<T: 'static>(
11709 &mut self,
11710 ranges_to_remove: Vec<Range<Anchor>>,
11711 cx: &mut ViewContext<Self>,
11712 ) {
11713 let snapshot = self.buffer().read(cx).snapshot(cx);
11714 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11715 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11716 row_highlights.retain(|highlight| {
11717 while let Some(range_to_remove) = ranges_to_remove.peek() {
11718 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11719 Ordering::Less | Ordering::Equal => {
11720 ranges_to_remove.next();
11721 }
11722 Ordering::Greater => {
11723 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11724 Ordering::Less | Ordering::Equal => {
11725 return false;
11726 }
11727 Ordering::Greater => break,
11728 }
11729 }
11730 }
11731 }
11732
11733 true
11734 })
11735 }
11736
11737 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11738 pub fn clear_row_highlights<T: 'static>(&mut self) {
11739 self.highlighted_rows.remove(&TypeId::of::<T>());
11740 }
11741
11742 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11743 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11744 self.highlighted_rows
11745 .get(&TypeId::of::<T>())
11746 .map_or(&[] as &[_], |vec| vec.as_slice())
11747 .iter()
11748 .map(|highlight| (highlight.range.clone(), highlight.color))
11749 }
11750
11751 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11752 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11753 /// Allows to ignore certain kinds of highlights.
11754 pub fn highlighted_display_rows(
11755 &mut self,
11756 cx: &mut WindowContext,
11757 ) -> BTreeMap<DisplayRow, Hsla> {
11758 let snapshot = self.snapshot(cx);
11759 let mut used_highlight_orders = HashMap::default();
11760 self.highlighted_rows
11761 .iter()
11762 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11763 .fold(
11764 BTreeMap::<DisplayRow, Hsla>::new(),
11765 |mut unique_rows, highlight| {
11766 let start = highlight.range.start.to_display_point(&snapshot);
11767 let end = highlight.range.end.to_display_point(&snapshot);
11768 let start_row = start.row().0;
11769 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11770 && end.column() == 0
11771 {
11772 end.row().0.saturating_sub(1)
11773 } else {
11774 end.row().0
11775 };
11776 for row in start_row..=end_row {
11777 let used_index =
11778 used_highlight_orders.entry(row).or_insert(highlight.index);
11779 if highlight.index >= *used_index {
11780 *used_index = highlight.index;
11781 unique_rows.insert(DisplayRow(row), highlight.color);
11782 }
11783 }
11784 unique_rows
11785 },
11786 )
11787 }
11788
11789 pub fn highlighted_display_row_for_autoscroll(
11790 &self,
11791 snapshot: &DisplaySnapshot,
11792 ) -> Option<DisplayRow> {
11793 self.highlighted_rows
11794 .values()
11795 .flat_map(|highlighted_rows| highlighted_rows.iter())
11796 .filter_map(|highlight| {
11797 if highlight.should_autoscroll {
11798 Some(highlight.range.start.to_display_point(snapshot).row())
11799 } else {
11800 None
11801 }
11802 })
11803 .min()
11804 }
11805
11806 pub fn set_search_within_ranges(
11807 &mut self,
11808 ranges: &[Range<Anchor>],
11809 cx: &mut ViewContext<Self>,
11810 ) {
11811 self.highlight_background::<SearchWithinRange>(
11812 ranges,
11813 |colors| colors.editor_document_highlight_read_background,
11814 cx,
11815 )
11816 }
11817
11818 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11819 self.breadcrumb_header = Some(new_header);
11820 }
11821
11822 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11823 self.clear_background_highlights::<SearchWithinRange>(cx);
11824 }
11825
11826 pub fn highlight_background<T: 'static>(
11827 &mut self,
11828 ranges: &[Range<Anchor>],
11829 color_fetcher: fn(&ThemeColors) -> Hsla,
11830 cx: &mut ViewContext<Self>,
11831 ) {
11832 self.background_highlights
11833 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11834 self.scrollbar_marker_state.dirty = true;
11835 cx.notify();
11836 }
11837
11838 pub fn clear_background_highlights<T: 'static>(
11839 &mut self,
11840 cx: &mut ViewContext<Self>,
11841 ) -> Option<BackgroundHighlight> {
11842 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11843 if !text_highlights.1.is_empty() {
11844 self.scrollbar_marker_state.dirty = true;
11845 cx.notify();
11846 }
11847 Some(text_highlights)
11848 }
11849
11850 pub fn highlight_gutter<T: 'static>(
11851 &mut self,
11852 ranges: &[Range<Anchor>],
11853 color_fetcher: fn(&AppContext) -> Hsla,
11854 cx: &mut ViewContext<Self>,
11855 ) {
11856 self.gutter_highlights
11857 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11858 cx.notify();
11859 }
11860
11861 pub fn clear_gutter_highlights<T: 'static>(
11862 &mut self,
11863 cx: &mut ViewContext<Self>,
11864 ) -> Option<GutterHighlight> {
11865 cx.notify();
11866 self.gutter_highlights.remove(&TypeId::of::<T>())
11867 }
11868
11869 #[cfg(feature = "test-support")]
11870 pub fn all_text_background_highlights(
11871 &mut self,
11872 cx: &mut ViewContext<Self>,
11873 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11874 let snapshot = self.snapshot(cx);
11875 let buffer = &snapshot.buffer_snapshot;
11876 let start = buffer.anchor_before(0);
11877 let end = buffer.anchor_after(buffer.len());
11878 let theme = cx.theme().colors();
11879 self.background_highlights_in_range(start..end, &snapshot, theme)
11880 }
11881
11882 #[cfg(feature = "test-support")]
11883 pub fn search_background_highlights(
11884 &mut self,
11885 cx: &mut ViewContext<Self>,
11886 ) -> Vec<Range<Point>> {
11887 let snapshot = self.buffer().read(cx).snapshot(cx);
11888
11889 let highlights = self
11890 .background_highlights
11891 .get(&TypeId::of::<items::BufferSearchHighlights>());
11892
11893 if let Some((_color, ranges)) = highlights {
11894 ranges
11895 .iter()
11896 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11897 .collect_vec()
11898 } else {
11899 vec![]
11900 }
11901 }
11902
11903 fn document_highlights_for_position<'a>(
11904 &'a self,
11905 position: Anchor,
11906 buffer: &'a MultiBufferSnapshot,
11907 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11908 let read_highlights = self
11909 .background_highlights
11910 .get(&TypeId::of::<DocumentHighlightRead>())
11911 .map(|h| &h.1);
11912 let write_highlights = self
11913 .background_highlights
11914 .get(&TypeId::of::<DocumentHighlightWrite>())
11915 .map(|h| &h.1);
11916 let left_position = position.bias_left(buffer);
11917 let right_position = position.bias_right(buffer);
11918 read_highlights
11919 .into_iter()
11920 .chain(write_highlights)
11921 .flat_map(move |ranges| {
11922 let start_ix = match ranges.binary_search_by(|probe| {
11923 let cmp = probe.end.cmp(&left_position, buffer);
11924 if cmp.is_ge() {
11925 Ordering::Greater
11926 } else {
11927 Ordering::Less
11928 }
11929 }) {
11930 Ok(i) | Err(i) => i,
11931 };
11932
11933 ranges[start_ix..]
11934 .iter()
11935 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11936 })
11937 }
11938
11939 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11940 self.background_highlights
11941 .get(&TypeId::of::<T>())
11942 .map_or(false, |(_, highlights)| !highlights.is_empty())
11943 }
11944
11945 pub fn background_highlights_in_range(
11946 &self,
11947 search_range: Range<Anchor>,
11948 display_snapshot: &DisplaySnapshot,
11949 theme: &ThemeColors,
11950 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11951 let mut results = Vec::new();
11952 for (color_fetcher, ranges) in self.background_highlights.values() {
11953 let color = color_fetcher(theme);
11954 let start_ix = match ranges.binary_search_by(|probe| {
11955 let cmp = probe
11956 .end
11957 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11958 if cmp.is_gt() {
11959 Ordering::Greater
11960 } else {
11961 Ordering::Less
11962 }
11963 }) {
11964 Ok(i) | Err(i) => i,
11965 };
11966 for range in &ranges[start_ix..] {
11967 if range
11968 .start
11969 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11970 .is_ge()
11971 {
11972 break;
11973 }
11974
11975 let start = range.start.to_display_point(display_snapshot);
11976 let end = range.end.to_display_point(display_snapshot);
11977 results.push((start..end, color))
11978 }
11979 }
11980 results
11981 }
11982
11983 pub fn background_highlight_row_ranges<T: 'static>(
11984 &self,
11985 search_range: Range<Anchor>,
11986 display_snapshot: &DisplaySnapshot,
11987 count: usize,
11988 ) -> Vec<RangeInclusive<DisplayPoint>> {
11989 let mut results = Vec::new();
11990 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11991 return vec![];
11992 };
11993
11994 let start_ix = match ranges.binary_search_by(|probe| {
11995 let cmp = probe
11996 .end
11997 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11998 if cmp.is_gt() {
11999 Ordering::Greater
12000 } else {
12001 Ordering::Less
12002 }
12003 }) {
12004 Ok(i) | Err(i) => i,
12005 };
12006 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12007 if let (Some(start_display), Some(end_display)) = (start, end) {
12008 results.push(
12009 start_display.to_display_point(display_snapshot)
12010 ..=end_display.to_display_point(display_snapshot),
12011 );
12012 }
12013 };
12014 let mut start_row: Option<Point> = None;
12015 let mut end_row: Option<Point> = None;
12016 if ranges.len() > count {
12017 return Vec::new();
12018 }
12019 for range in &ranges[start_ix..] {
12020 if range
12021 .start
12022 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12023 .is_ge()
12024 {
12025 break;
12026 }
12027 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12028 if let Some(current_row) = &end_row {
12029 if end.row == current_row.row {
12030 continue;
12031 }
12032 }
12033 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12034 if start_row.is_none() {
12035 assert_eq!(end_row, None);
12036 start_row = Some(start);
12037 end_row = Some(end);
12038 continue;
12039 }
12040 if let Some(current_end) = end_row.as_mut() {
12041 if start.row > current_end.row + 1 {
12042 push_region(start_row, end_row);
12043 start_row = Some(start);
12044 end_row = Some(end);
12045 } else {
12046 // Merge two hunks.
12047 *current_end = end;
12048 }
12049 } else {
12050 unreachable!();
12051 }
12052 }
12053 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12054 push_region(start_row, end_row);
12055 results
12056 }
12057
12058 pub fn gutter_highlights_in_range(
12059 &self,
12060 search_range: Range<Anchor>,
12061 display_snapshot: &DisplaySnapshot,
12062 cx: &AppContext,
12063 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12064 let mut results = Vec::new();
12065 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12066 let color = color_fetcher(cx);
12067 let start_ix = match ranges.binary_search_by(|probe| {
12068 let cmp = probe
12069 .end
12070 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12071 if cmp.is_gt() {
12072 Ordering::Greater
12073 } else {
12074 Ordering::Less
12075 }
12076 }) {
12077 Ok(i) | Err(i) => i,
12078 };
12079 for range in &ranges[start_ix..] {
12080 if range
12081 .start
12082 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12083 .is_ge()
12084 {
12085 break;
12086 }
12087
12088 let start = range.start.to_display_point(display_snapshot);
12089 let end = range.end.to_display_point(display_snapshot);
12090 results.push((start..end, color))
12091 }
12092 }
12093 results
12094 }
12095
12096 /// Get the text ranges corresponding to the redaction query
12097 pub fn redacted_ranges(
12098 &self,
12099 search_range: Range<Anchor>,
12100 display_snapshot: &DisplaySnapshot,
12101 cx: &WindowContext,
12102 ) -> Vec<Range<DisplayPoint>> {
12103 display_snapshot
12104 .buffer_snapshot
12105 .redacted_ranges(search_range, |file| {
12106 if let Some(file) = file {
12107 file.is_private()
12108 && EditorSettings::get(
12109 Some(SettingsLocation {
12110 worktree_id: file.worktree_id(cx),
12111 path: file.path().as_ref(),
12112 }),
12113 cx,
12114 )
12115 .redact_private_values
12116 } else {
12117 false
12118 }
12119 })
12120 .map(|range| {
12121 range.start.to_display_point(display_snapshot)
12122 ..range.end.to_display_point(display_snapshot)
12123 })
12124 .collect()
12125 }
12126
12127 pub fn highlight_text<T: 'static>(
12128 &mut self,
12129 ranges: Vec<Range<Anchor>>,
12130 style: HighlightStyle,
12131 cx: &mut ViewContext<Self>,
12132 ) {
12133 self.display_map.update(cx, |map, _| {
12134 map.highlight_text(TypeId::of::<T>(), ranges, style)
12135 });
12136 cx.notify();
12137 }
12138
12139 pub(crate) fn highlight_inlays<T: 'static>(
12140 &mut self,
12141 highlights: Vec<InlayHighlight>,
12142 style: HighlightStyle,
12143 cx: &mut ViewContext<Self>,
12144 ) {
12145 self.display_map.update(cx, |map, _| {
12146 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12147 });
12148 cx.notify();
12149 }
12150
12151 pub fn text_highlights<'a, T: 'static>(
12152 &'a self,
12153 cx: &'a AppContext,
12154 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12155 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12156 }
12157
12158 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12159 let cleared = self
12160 .display_map
12161 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12162 if cleared {
12163 cx.notify();
12164 }
12165 }
12166
12167 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12168 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12169 && self.focus_handle.is_focused(cx)
12170 }
12171
12172 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12173 self.show_cursor_when_unfocused = is_enabled;
12174 cx.notify();
12175 }
12176
12177 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12178 self.project
12179 .as_ref()
12180 .map(|project| project.read(cx).lsp_store())
12181 }
12182
12183 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12184 cx.notify();
12185 }
12186
12187 fn on_buffer_event(
12188 &mut self,
12189 multibuffer: Model<MultiBuffer>,
12190 event: &multi_buffer::Event,
12191 cx: &mut ViewContext<Self>,
12192 ) {
12193 match event {
12194 multi_buffer::Event::Edited {
12195 singleton_buffer_edited,
12196 edited_buffer: buffer_edited,
12197 } => {
12198 self.scrollbar_marker_state.dirty = true;
12199 self.active_indent_guides_state.dirty = true;
12200 self.refresh_active_diagnostics(cx);
12201 self.refresh_code_actions(cx);
12202 if self.has_active_inline_completion() {
12203 self.update_visible_inline_completion(cx);
12204 }
12205 if let Some(buffer) = buffer_edited {
12206 let buffer_id = buffer.read(cx).remote_id();
12207 if !self.registered_buffers.contains_key(&buffer_id) {
12208 if let Some(lsp_store) = self.lsp_store(cx) {
12209 lsp_store.update(cx, |lsp_store, cx| {
12210 self.registered_buffers.insert(
12211 buffer_id,
12212 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12213 );
12214 })
12215 }
12216 }
12217 }
12218 cx.emit(EditorEvent::BufferEdited);
12219 cx.emit(SearchEvent::MatchesInvalidated);
12220 if *singleton_buffer_edited {
12221 if let Some(project) = &self.project {
12222 let project = project.read(cx);
12223 #[allow(clippy::mutable_key_type)]
12224 let languages_affected = multibuffer
12225 .read(cx)
12226 .all_buffers()
12227 .into_iter()
12228 .filter_map(|buffer| {
12229 let buffer = buffer.read(cx);
12230 let language = buffer.language()?;
12231 if project.is_local()
12232 && project
12233 .language_servers_for_local_buffer(buffer, cx)
12234 .count()
12235 == 0
12236 {
12237 None
12238 } else {
12239 Some(language)
12240 }
12241 })
12242 .cloned()
12243 .collect::<HashSet<_>>();
12244 if !languages_affected.is_empty() {
12245 self.refresh_inlay_hints(
12246 InlayHintRefreshReason::BufferEdited(languages_affected),
12247 cx,
12248 );
12249 }
12250 }
12251 }
12252
12253 let Some(project) = &self.project else { return };
12254 let (telemetry, is_via_ssh) = {
12255 let project = project.read(cx);
12256 let telemetry = project.client().telemetry().clone();
12257 let is_via_ssh = project.is_via_ssh();
12258 (telemetry, is_via_ssh)
12259 };
12260 refresh_linked_ranges(self, cx);
12261 telemetry.log_edit_event("editor", is_via_ssh);
12262 }
12263 multi_buffer::Event::ExcerptsAdded {
12264 buffer,
12265 predecessor,
12266 excerpts,
12267 } => {
12268 self.tasks_update_task = Some(self.refresh_runnables(cx));
12269 let buffer_id = buffer.read(cx).remote_id();
12270 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12271 if let Some(project) = &self.project {
12272 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12273 }
12274 }
12275 cx.emit(EditorEvent::ExcerptsAdded {
12276 buffer: buffer.clone(),
12277 predecessor: *predecessor,
12278 excerpts: excerpts.clone(),
12279 });
12280 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12281 }
12282 multi_buffer::Event::ExcerptsRemoved { ids } => {
12283 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12284 let buffer = self.buffer.read(cx);
12285 self.registered_buffers
12286 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12287 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12288 }
12289 multi_buffer::Event::ExcerptsEdited { ids } => {
12290 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12291 }
12292 multi_buffer::Event::ExcerptsExpanded { ids } => {
12293 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12294 }
12295 multi_buffer::Event::Reparsed(buffer_id) => {
12296 self.tasks_update_task = Some(self.refresh_runnables(cx));
12297
12298 cx.emit(EditorEvent::Reparsed(*buffer_id));
12299 }
12300 multi_buffer::Event::LanguageChanged(buffer_id) => {
12301 linked_editing_ranges::refresh_linked_ranges(self, cx);
12302 cx.emit(EditorEvent::Reparsed(*buffer_id));
12303 cx.notify();
12304 }
12305 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12306 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12307 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12308 cx.emit(EditorEvent::TitleChanged)
12309 }
12310 // multi_buffer::Event::DiffBaseChanged => {
12311 // self.scrollbar_marker_state.dirty = true;
12312 // cx.emit(EditorEvent::DiffBaseChanged);
12313 // cx.notify();
12314 // }
12315 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12316 multi_buffer::Event::DiagnosticsUpdated => {
12317 self.refresh_active_diagnostics(cx);
12318 self.scrollbar_marker_state.dirty = true;
12319 cx.notify();
12320 }
12321 _ => {}
12322 };
12323 }
12324
12325 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12326 cx.notify();
12327 }
12328
12329 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12330 self.tasks_update_task = Some(self.refresh_runnables(cx));
12331 self.refresh_inline_completion(true, false, cx);
12332 self.refresh_inlay_hints(
12333 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12334 self.selections.newest_anchor().head(),
12335 &self.buffer.read(cx).snapshot(cx),
12336 cx,
12337 )),
12338 cx,
12339 );
12340
12341 let old_cursor_shape = self.cursor_shape;
12342
12343 {
12344 let editor_settings = EditorSettings::get_global(cx);
12345 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12346 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12347 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12348 }
12349
12350 if old_cursor_shape != self.cursor_shape {
12351 cx.emit(EditorEvent::CursorShapeChanged);
12352 }
12353
12354 let project_settings = ProjectSettings::get_global(cx);
12355 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12356
12357 if self.mode == EditorMode::Full {
12358 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12359 if self.git_blame_inline_enabled != inline_blame_enabled {
12360 self.toggle_git_blame_inline_internal(false, cx);
12361 }
12362 }
12363
12364 cx.notify();
12365 }
12366
12367 pub fn set_searchable(&mut self, searchable: bool) {
12368 self.searchable = searchable;
12369 }
12370
12371 pub fn searchable(&self) -> bool {
12372 self.searchable
12373 }
12374
12375 fn open_proposed_changes_editor(
12376 &mut self,
12377 _: &OpenProposedChangesEditor,
12378 cx: &mut ViewContext<Self>,
12379 ) {
12380 let Some(workspace) = self.workspace() else {
12381 cx.propagate();
12382 return;
12383 };
12384
12385 let selections = self.selections.all::<usize>(cx);
12386 let buffer = self.buffer.read(cx);
12387 let mut new_selections_by_buffer = HashMap::default();
12388 for selection in selections {
12389 for (buffer, range, _) in
12390 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12391 {
12392 let mut range = range.to_point(buffer.read(cx));
12393 range.start.column = 0;
12394 range.end.column = buffer.read(cx).line_len(range.end.row);
12395 new_selections_by_buffer
12396 .entry(buffer)
12397 .or_insert(Vec::new())
12398 .push(range)
12399 }
12400 }
12401
12402 let proposed_changes_buffers = new_selections_by_buffer
12403 .into_iter()
12404 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12405 .collect::<Vec<_>>();
12406 let proposed_changes_editor = cx.new_view(|cx| {
12407 ProposedChangesEditor::new(
12408 "Proposed changes",
12409 proposed_changes_buffers,
12410 self.project.clone(),
12411 cx,
12412 )
12413 });
12414
12415 cx.window_context().defer(move |cx| {
12416 workspace.update(cx, |workspace, cx| {
12417 workspace.active_pane().update(cx, |pane, cx| {
12418 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12419 });
12420 });
12421 });
12422 }
12423
12424 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12425 self.open_excerpts_common(None, true, cx)
12426 }
12427
12428 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12429 self.open_excerpts_common(None, false, cx)
12430 }
12431
12432 fn open_excerpts_common(
12433 &mut self,
12434 jump_data: Option<JumpData>,
12435 split: bool,
12436 cx: &mut ViewContext<Self>,
12437 ) {
12438 let Some(workspace) = self.workspace() else {
12439 cx.propagate();
12440 return;
12441 };
12442
12443 if self.buffer.read(cx).is_singleton() {
12444 cx.propagate();
12445 return;
12446 }
12447
12448 let mut new_selections_by_buffer = HashMap::default();
12449 match &jump_data {
12450 Some(jump_data) => {
12451 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12452 if let Some(buffer) = multi_buffer_snapshot
12453 .buffer_id_for_excerpt(jump_data.excerpt_id)
12454 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12455 {
12456 let buffer_snapshot = buffer.read(cx).snapshot();
12457 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12458 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12459 } else {
12460 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12461 };
12462 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12463 new_selections_by_buffer.insert(
12464 buffer,
12465 (
12466 vec![jump_to_offset..jump_to_offset],
12467 Some(jump_data.line_offset_from_top),
12468 ),
12469 );
12470 }
12471 }
12472 None => {
12473 let selections = self.selections.all::<usize>(cx);
12474 let buffer = self.buffer.read(cx);
12475 for selection in selections {
12476 for (mut buffer_handle, mut range, _) in
12477 buffer.range_to_buffer_ranges(selection.range(), cx)
12478 {
12479 // When editing branch buffers, jump to the corresponding location
12480 // in their base buffer.
12481 let buffer = buffer_handle.read(cx);
12482 if let Some(base_buffer) = buffer.base_buffer() {
12483 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12484 buffer_handle = base_buffer;
12485 }
12486
12487 if selection.reversed {
12488 mem::swap(&mut range.start, &mut range.end);
12489 }
12490 new_selections_by_buffer
12491 .entry(buffer_handle)
12492 .or_insert((Vec::new(), None))
12493 .0
12494 .push(range)
12495 }
12496 }
12497 }
12498 }
12499
12500 if new_selections_by_buffer.is_empty() {
12501 return;
12502 }
12503
12504 // We defer the pane interaction because we ourselves are a workspace item
12505 // and activating a new item causes the pane to call a method on us reentrantly,
12506 // which panics if we're on the stack.
12507 cx.window_context().defer(move |cx| {
12508 workspace.update(cx, |workspace, cx| {
12509 let pane = if split {
12510 workspace.adjacent_pane(cx)
12511 } else {
12512 workspace.active_pane().clone()
12513 };
12514
12515 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12516 let editor = buffer
12517 .read(cx)
12518 .file()
12519 .is_none()
12520 .then(|| {
12521 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12522 // so `workspace.open_project_item` will never find them, always opening a new editor.
12523 // Instead, we try to activate the existing editor in the pane first.
12524 let (editor, pane_item_index) =
12525 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12526 let editor = item.downcast::<Editor>()?;
12527 let singleton_buffer =
12528 editor.read(cx).buffer().read(cx).as_singleton()?;
12529 if singleton_buffer == buffer {
12530 Some((editor, i))
12531 } else {
12532 None
12533 }
12534 })?;
12535 pane.update(cx, |pane, cx| {
12536 pane.activate_item(pane_item_index, true, true, cx)
12537 });
12538 Some(editor)
12539 })
12540 .flatten()
12541 .unwrap_or_else(|| {
12542 workspace.open_project_item::<Self>(
12543 pane.clone(),
12544 buffer,
12545 true,
12546 true,
12547 cx,
12548 )
12549 });
12550
12551 editor.update(cx, |editor, cx| {
12552 let autoscroll = match scroll_offset {
12553 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12554 None => Autoscroll::newest(),
12555 };
12556 let nav_history = editor.nav_history.take();
12557 editor.change_selections(Some(autoscroll), cx, |s| {
12558 s.select_ranges(ranges);
12559 });
12560 editor.nav_history = nav_history;
12561 });
12562 }
12563 })
12564 });
12565 }
12566
12567 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12568 let snapshot = self.buffer.read(cx).read(cx);
12569 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12570 Some(
12571 ranges
12572 .iter()
12573 .map(move |range| {
12574 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12575 })
12576 .collect(),
12577 )
12578 }
12579
12580 fn selection_replacement_ranges(
12581 &self,
12582 range: Range<OffsetUtf16>,
12583 cx: &mut AppContext,
12584 ) -> Vec<Range<OffsetUtf16>> {
12585 let selections = self.selections.all::<OffsetUtf16>(cx);
12586 let newest_selection = selections
12587 .iter()
12588 .max_by_key(|selection| selection.id)
12589 .unwrap();
12590 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12591 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12592 let snapshot = self.buffer.read(cx).read(cx);
12593 selections
12594 .into_iter()
12595 .map(|mut selection| {
12596 selection.start.0 =
12597 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12598 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12599 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12600 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12601 })
12602 .collect()
12603 }
12604
12605 fn report_editor_event(
12606 &self,
12607 event_type: &'static str,
12608 file_extension: Option<String>,
12609 cx: &AppContext,
12610 ) {
12611 if cfg!(any(test, feature = "test-support")) {
12612 return;
12613 }
12614
12615 let Some(project) = &self.project else { return };
12616
12617 // If None, we are in a file without an extension
12618 let file = self
12619 .buffer
12620 .read(cx)
12621 .as_singleton()
12622 .and_then(|b| b.read(cx).file());
12623 let file_extension = file_extension.or(file
12624 .as_ref()
12625 .and_then(|file| Path::new(file.file_name(cx)).extension())
12626 .and_then(|e| e.to_str())
12627 .map(|a| a.to_string()));
12628
12629 let vim_mode = cx
12630 .global::<SettingsStore>()
12631 .raw_user_settings()
12632 .get("vim_mode")
12633 == Some(&serde_json::Value::Bool(true));
12634
12635 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12636 == language::language_settings::InlineCompletionProvider::Copilot;
12637 let copilot_enabled_for_language = self
12638 .buffer
12639 .read(cx)
12640 .settings_at(0, cx)
12641 .show_inline_completions;
12642
12643 let project = project.read(cx);
12644 telemetry::event!(
12645 event_type,
12646 file_extension,
12647 vim_mode,
12648 copilot_enabled,
12649 copilot_enabled_for_language,
12650 is_via_ssh = project.is_via_ssh(),
12651 );
12652 }
12653
12654 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12655 /// with each line being an array of {text, highlight} objects.
12656 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12657 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12658 return;
12659 };
12660
12661 #[derive(Serialize)]
12662 struct Chunk<'a> {
12663 text: String,
12664 highlight: Option<&'a str>,
12665 }
12666
12667 let snapshot = buffer.read(cx).snapshot();
12668 let range = self
12669 .selected_text_range(false, cx)
12670 .and_then(|selection| {
12671 if selection.range.is_empty() {
12672 None
12673 } else {
12674 Some(selection.range)
12675 }
12676 })
12677 .unwrap_or_else(|| 0..snapshot.len());
12678
12679 let chunks = snapshot.chunks(range, true);
12680 let mut lines = Vec::new();
12681 let mut line: VecDeque<Chunk> = VecDeque::new();
12682
12683 let Some(style) = self.style.as_ref() else {
12684 return;
12685 };
12686
12687 for chunk in chunks {
12688 let highlight = chunk
12689 .syntax_highlight_id
12690 .and_then(|id| id.name(&style.syntax));
12691 let mut chunk_lines = chunk.text.split('\n').peekable();
12692 while let Some(text) = chunk_lines.next() {
12693 let mut merged_with_last_token = false;
12694 if let Some(last_token) = line.back_mut() {
12695 if last_token.highlight == highlight {
12696 last_token.text.push_str(text);
12697 merged_with_last_token = true;
12698 }
12699 }
12700
12701 if !merged_with_last_token {
12702 line.push_back(Chunk {
12703 text: text.into(),
12704 highlight,
12705 });
12706 }
12707
12708 if chunk_lines.peek().is_some() {
12709 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12710 line.pop_front();
12711 }
12712 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12713 line.pop_back();
12714 }
12715
12716 lines.push(mem::take(&mut line));
12717 }
12718 }
12719 }
12720
12721 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12722 return;
12723 };
12724 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12725 }
12726
12727 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12728 self.request_autoscroll(Autoscroll::newest(), cx);
12729 let position = self.selections.newest_display(cx).start;
12730 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12731 }
12732
12733 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12734 &self.inlay_hint_cache
12735 }
12736
12737 pub fn replay_insert_event(
12738 &mut self,
12739 text: &str,
12740 relative_utf16_range: Option<Range<isize>>,
12741 cx: &mut ViewContext<Self>,
12742 ) {
12743 if !self.input_enabled {
12744 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12745 return;
12746 }
12747 if let Some(relative_utf16_range) = relative_utf16_range {
12748 let selections = self.selections.all::<OffsetUtf16>(cx);
12749 self.change_selections(None, cx, |s| {
12750 let new_ranges = selections.into_iter().map(|range| {
12751 let start = OffsetUtf16(
12752 range
12753 .head()
12754 .0
12755 .saturating_add_signed(relative_utf16_range.start),
12756 );
12757 let end = OffsetUtf16(
12758 range
12759 .head()
12760 .0
12761 .saturating_add_signed(relative_utf16_range.end),
12762 );
12763 start..end
12764 });
12765 s.select_ranges(new_ranges);
12766 });
12767 }
12768
12769 self.handle_input(text, cx);
12770 }
12771
12772 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12773 let Some(provider) = self.semantics_provider.as_ref() else {
12774 return false;
12775 };
12776
12777 let mut supports = false;
12778 self.buffer().read(cx).for_each_buffer(|buffer| {
12779 supports |= provider.supports_inlay_hints(buffer, cx);
12780 });
12781 supports
12782 }
12783
12784 pub fn focus(&self, cx: &mut WindowContext) {
12785 cx.focus(&self.focus_handle)
12786 }
12787
12788 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12789 self.focus_handle.is_focused(cx)
12790 }
12791
12792 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12793 cx.emit(EditorEvent::Focused);
12794
12795 if let Some(descendant) = self
12796 .last_focused_descendant
12797 .take()
12798 .and_then(|descendant| descendant.upgrade())
12799 {
12800 cx.focus(&descendant);
12801 } else {
12802 if let Some(blame) = self.blame.as_ref() {
12803 blame.update(cx, GitBlame::focus)
12804 }
12805
12806 self.blink_manager.update(cx, BlinkManager::enable);
12807 self.show_cursor_names(cx);
12808 self.buffer.update(cx, |buffer, cx| {
12809 buffer.finalize_last_transaction(cx);
12810 if self.leader_peer_id.is_none() {
12811 buffer.set_active_selections(
12812 &self.selections.disjoint_anchors(),
12813 self.selections.line_mode,
12814 self.cursor_shape,
12815 cx,
12816 );
12817 }
12818 });
12819 }
12820 }
12821
12822 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12823 cx.emit(EditorEvent::FocusedIn)
12824 }
12825
12826 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12827 if event.blurred != self.focus_handle {
12828 self.last_focused_descendant = Some(event.blurred);
12829 }
12830 }
12831
12832 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12833 self.blink_manager.update(cx, BlinkManager::disable);
12834 self.buffer
12835 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12836
12837 if let Some(blame) = self.blame.as_ref() {
12838 blame.update(cx, GitBlame::blur)
12839 }
12840 if !self.hover_state.focused(cx) {
12841 hide_hover(self, cx);
12842 }
12843
12844 self.hide_context_menu(cx);
12845 cx.emit(EditorEvent::Blurred);
12846 cx.notify();
12847 }
12848
12849 pub fn register_action<A: Action>(
12850 &mut self,
12851 listener: impl Fn(&A, &mut WindowContext) + 'static,
12852 ) -> Subscription {
12853 let id = self.next_editor_action_id.post_inc();
12854 let listener = Arc::new(listener);
12855 self.editor_actions.borrow_mut().insert(
12856 id,
12857 Box::new(move |cx| {
12858 let cx = cx.window_context();
12859 let listener = listener.clone();
12860 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12861 let action = action.downcast_ref().unwrap();
12862 if phase == DispatchPhase::Bubble {
12863 listener(action, cx)
12864 }
12865 })
12866 }),
12867 );
12868
12869 let editor_actions = self.editor_actions.clone();
12870 Subscription::new(move || {
12871 editor_actions.borrow_mut().remove(&id);
12872 })
12873 }
12874
12875 pub fn file_header_size(&self) -> u32 {
12876 FILE_HEADER_HEIGHT
12877 }
12878
12879 pub fn revert(
12880 &mut self,
12881 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12882 cx: &mut ViewContext<Self>,
12883 ) {
12884 self.buffer().update(cx, |multi_buffer, cx| {
12885 for (buffer_id, changes) in revert_changes {
12886 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12887 buffer.update(cx, |buffer, cx| {
12888 buffer.edit(
12889 changes.into_iter().map(|(range, text)| {
12890 (range, text.to_string().map(Arc::<str>::from))
12891 }),
12892 None,
12893 cx,
12894 );
12895 });
12896 }
12897 }
12898 });
12899 self.change_selections(None, cx, |selections| selections.refresh());
12900 }
12901
12902 pub fn to_pixel_point(
12903 &mut self,
12904 source: multi_buffer::Anchor,
12905 editor_snapshot: &EditorSnapshot,
12906 cx: &mut ViewContext<Self>,
12907 ) -> Option<gpui::Point<Pixels>> {
12908 let source_point = source.to_display_point(editor_snapshot);
12909 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12910 }
12911
12912 pub fn display_to_pixel_point(
12913 &self,
12914 source: DisplayPoint,
12915 editor_snapshot: &EditorSnapshot,
12916 cx: &WindowContext,
12917 ) -> Option<gpui::Point<Pixels>> {
12918 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12919 let text_layout_details = self.text_layout_details(cx);
12920 let scroll_top = text_layout_details
12921 .scroll_anchor
12922 .scroll_position(editor_snapshot)
12923 .y;
12924
12925 if source.row().as_f32() < scroll_top.floor() {
12926 return None;
12927 }
12928 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12929 let source_y = line_height * (source.row().as_f32() - scroll_top);
12930 Some(gpui::Point::new(source_x, source_y))
12931 }
12932
12933 pub fn has_active_completions_menu(&self) -> bool {
12934 self.context_menu.borrow().as_ref().map_or(false, |menu| {
12935 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12936 })
12937 }
12938
12939 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12940 self.addons
12941 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12942 }
12943
12944 pub fn unregister_addon<T: Addon>(&mut self) {
12945 self.addons.remove(&std::any::TypeId::of::<T>());
12946 }
12947
12948 pub fn addon<T: Addon>(&self) -> Option<&T> {
12949 let type_id = std::any::TypeId::of::<T>();
12950 self.addons
12951 .get(&type_id)
12952 .and_then(|item| item.to_any().downcast_ref::<T>())
12953 }
12954
12955 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12956 let text_layout_details = self.text_layout_details(cx);
12957 let style = &text_layout_details.editor_style;
12958 let font_id = cx.text_system().resolve_font(&style.text.font());
12959 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12960 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12961
12962 let em_width = cx
12963 .text_system()
12964 .typographic_bounds(font_id, font_size, 'm')
12965 .unwrap()
12966 .size
12967 .width;
12968
12969 gpui::Point::new(em_width, line_height)
12970 }
12971}
12972
12973fn get_unstaged_changes_for_buffers(
12974 project: &Model<Project>,
12975 buffers: impl IntoIterator<Item = Model<Buffer>>,
12976 cx: &mut ViewContext<Editor>,
12977) {
12978 let mut tasks = Vec::new();
12979 project.update(cx, |project, cx| {
12980 for buffer in buffers {
12981 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
12982 }
12983 });
12984 cx.spawn(|this, mut cx| async move {
12985 let change_sets = futures::future::join_all(tasks).await;
12986 this.update(&mut cx, |this, cx| {
12987 for change_set in change_sets {
12988 if let Some(change_set) = change_set.log_err() {
12989 this.diff_map.add_change_set(change_set, cx);
12990 }
12991 }
12992 })
12993 .ok();
12994 })
12995 .detach();
12996}
12997
12998fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
12999 let tab_size = tab_size.get() as usize;
13000 let mut width = offset;
13001
13002 for ch in text.chars() {
13003 width += if ch == '\t' {
13004 tab_size - (width % tab_size)
13005 } else {
13006 1
13007 };
13008 }
13009
13010 width - offset
13011}
13012
13013#[cfg(test)]
13014mod tests {
13015 use super::*;
13016
13017 #[test]
13018 fn test_string_size_with_expanded_tabs() {
13019 let nz = |val| NonZeroU32::new(val).unwrap();
13020 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13021 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13022 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13023 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13024 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13025 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13026 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13027 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13028 }
13029}
13030
13031/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13032struct WordBreakingTokenizer<'a> {
13033 input: &'a str,
13034}
13035
13036impl<'a> WordBreakingTokenizer<'a> {
13037 fn new(input: &'a str) -> Self {
13038 Self { input }
13039 }
13040}
13041
13042fn is_char_ideographic(ch: char) -> bool {
13043 use unicode_script::Script::*;
13044 use unicode_script::UnicodeScript;
13045 matches!(ch.script(), Han | Tangut | Yi)
13046}
13047
13048fn is_grapheme_ideographic(text: &str) -> bool {
13049 text.chars().any(is_char_ideographic)
13050}
13051
13052fn is_grapheme_whitespace(text: &str) -> bool {
13053 text.chars().any(|x| x.is_whitespace())
13054}
13055
13056fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13057 text.chars().next().map_or(false, |ch| {
13058 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13059 })
13060}
13061
13062#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13063struct WordBreakToken<'a> {
13064 token: &'a str,
13065 grapheme_len: usize,
13066 is_whitespace: bool,
13067}
13068
13069impl<'a> Iterator for WordBreakingTokenizer<'a> {
13070 /// Yields a span, the count of graphemes in the token, and whether it was
13071 /// whitespace. Note that it also breaks at word boundaries.
13072 type Item = WordBreakToken<'a>;
13073
13074 fn next(&mut self) -> Option<Self::Item> {
13075 use unicode_segmentation::UnicodeSegmentation;
13076 if self.input.is_empty() {
13077 return None;
13078 }
13079
13080 let mut iter = self.input.graphemes(true).peekable();
13081 let mut offset = 0;
13082 let mut graphemes = 0;
13083 if let Some(first_grapheme) = iter.next() {
13084 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13085 offset += first_grapheme.len();
13086 graphemes += 1;
13087 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13088 if let Some(grapheme) = iter.peek().copied() {
13089 if should_stay_with_preceding_ideograph(grapheme) {
13090 offset += grapheme.len();
13091 graphemes += 1;
13092 }
13093 }
13094 } else {
13095 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13096 let mut next_word_bound = words.peek().copied();
13097 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13098 next_word_bound = words.next();
13099 }
13100 while let Some(grapheme) = iter.peek().copied() {
13101 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13102 break;
13103 };
13104 if is_grapheme_whitespace(grapheme) != is_whitespace {
13105 break;
13106 };
13107 offset += grapheme.len();
13108 graphemes += 1;
13109 iter.next();
13110 }
13111 }
13112 let token = &self.input[..offset];
13113 self.input = &self.input[offset..];
13114 if is_whitespace {
13115 Some(WordBreakToken {
13116 token: " ",
13117 grapheme_len: 1,
13118 is_whitespace: true,
13119 })
13120 } else {
13121 Some(WordBreakToken {
13122 token,
13123 grapheme_len: graphemes,
13124 is_whitespace: false,
13125 })
13126 }
13127 } else {
13128 None
13129 }
13130 }
13131}
13132
13133#[test]
13134fn test_word_breaking_tokenizer() {
13135 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13136 ("", &[]),
13137 (" ", &[(" ", 1, true)]),
13138 ("Ʒ", &[("Ʒ", 1, false)]),
13139 ("Ǽ", &[("Ǽ", 1, false)]),
13140 ("⋑", &[("⋑", 1, false)]),
13141 ("⋑⋑", &[("⋑⋑", 2, false)]),
13142 (
13143 "原理，进而",
13144 &[
13145 ("原", 1, false),
13146 ("理，", 2, false),
13147 ("进", 1, false),
13148 ("而", 1, false),
13149 ],
13150 ),
13151 (
13152 "hello world",
13153 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13154 ),
13155 (
13156 "hello, world",
13157 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13158 ),
13159 (
13160 " hello world",
13161 &[
13162 (" ", 1, true),
13163 ("hello", 5, false),
13164 (" ", 1, true),
13165 ("world", 5, false),
13166 ],
13167 ),
13168 (
13169 "这是什么 \n 钢笔",
13170 &[
13171 ("这", 1, false),
13172 ("是", 1, false),
13173 ("什", 1, false),
13174 ("么", 1, false),
13175 (" ", 1, true),
13176 ("钢", 1, false),
13177 ("笔", 1, false),
13178 ],
13179 ),
13180 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13181 ];
13182
13183 for (input, result) in tests {
13184 assert_eq!(
13185 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13186 result
13187 .iter()
13188 .copied()
13189 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13190 token,
13191 grapheme_len,
13192 is_whitespace,
13193 })
13194 .collect::<Vec<_>>()
13195 );
13196 }
13197}
13198
13199fn wrap_with_prefix(
13200 line_prefix: String,
13201 unwrapped_text: String,
13202 wrap_column: usize,
13203 tab_size: NonZeroU32,
13204) -> String {
13205 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13206 let mut wrapped_text = String::new();
13207 let mut current_line = line_prefix.clone();
13208
13209 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13210 let mut current_line_len = line_prefix_len;
13211 for WordBreakToken {
13212 token,
13213 grapheme_len,
13214 is_whitespace,
13215 } in tokenizer
13216 {
13217 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13218 wrapped_text.push_str(current_line.trim_end());
13219 wrapped_text.push('\n');
13220 current_line.truncate(line_prefix.len());
13221 current_line_len = line_prefix_len;
13222 if !is_whitespace {
13223 current_line.push_str(token);
13224 current_line_len += grapheme_len;
13225 }
13226 } else if !is_whitespace {
13227 current_line.push_str(token);
13228 current_line_len += grapheme_len;
13229 } else if current_line_len != line_prefix_len {
13230 current_line.push(' ');
13231 current_line_len += 1;
13232 }
13233 }
13234
13235 if !current_line.is_empty() {
13236 wrapped_text.push_str(¤t_line);
13237 }
13238 wrapped_text
13239}
13240
13241#[test]
13242fn test_wrap_with_prefix() {
13243 assert_eq!(
13244 wrap_with_prefix(
13245 "# ".to_string(),
13246 "abcdefg".to_string(),
13247 4,
13248 NonZeroU32::new(4).unwrap()
13249 ),
13250 "# abcdefg"
13251 );
13252 assert_eq!(
13253 wrap_with_prefix(
13254 "".to_string(),
13255 "\thello world".to_string(),
13256 8,
13257 NonZeroU32::new(4).unwrap()
13258 ),
13259 "hello\nworld"
13260 );
13261 assert_eq!(
13262 wrap_with_prefix(
13263 "// ".to_string(),
13264 "xx \nyy zz aa bb cc".to_string(),
13265 12,
13266 NonZeroU32::new(4).unwrap()
13267 ),
13268 "// xx yy zz\n// aa bb cc"
13269 );
13270 assert_eq!(
13271 wrap_with_prefix(
13272 String::new(),
13273 "这是什么 \n 钢笔".to_string(),
13274 3,
13275 NonZeroU32::new(4).unwrap()
13276 ),
13277 "这是什\n么 钢\n笔"
13278 );
13279}
13280
13281fn hunks_for_selections(
13282 snapshot: &EditorSnapshot,
13283 selections: &[Selection<Point>],
13284) -> Vec<MultiBufferDiffHunk> {
13285 hunks_for_ranges(
13286 selections.iter().map(|selection| selection.range()),
13287 snapshot,
13288 )
13289}
13290
13291pub fn hunks_for_ranges(
13292 ranges: impl Iterator<Item = Range<Point>>,
13293 snapshot: &EditorSnapshot,
13294) -> Vec<MultiBufferDiffHunk> {
13295 let mut hunks = Vec::new();
13296 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13297 HashMap::default();
13298 for query_range in ranges {
13299 let query_rows =
13300 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13301 for hunk in snapshot.diff_map.diff_hunks_in_range(
13302 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13303 &snapshot.buffer_snapshot,
13304 ) {
13305 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13306 // when the caret is just above or just below the deleted hunk.
13307 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13308 let related_to_selection = if allow_adjacent {
13309 hunk.row_range.overlaps(&query_rows)
13310 || hunk.row_range.start == query_rows.end
13311 || hunk.row_range.end == query_rows.start
13312 } else {
13313 hunk.row_range.overlaps(&query_rows)
13314 };
13315 if related_to_selection {
13316 if !processed_buffer_rows
13317 .entry(hunk.buffer_id)
13318 .or_default()
13319 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13320 {
13321 continue;
13322 }
13323 hunks.push(hunk);
13324 }
13325 }
13326 }
13327
13328 hunks
13329}
13330
13331pub trait CollaborationHub {
13332 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13333 fn user_participant_indices<'a>(
13334 &self,
13335 cx: &'a AppContext,
13336 ) -> &'a HashMap<u64, ParticipantIndex>;
13337 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13338}
13339
13340impl CollaborationHub for Model<Project> {
13341 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13342 self.read(cx).collaborators()
13343 }
13344
13345 fn user_participant_indices<'a>(
13346 &self,
13347 cx: &'a AppContext,
13348 ) -> &'a HashMap<u64, ParticipantIndex> {
13349 self.read(cx).user_store().read(cx).participant_indices()
13350 }
13351
13352 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13353 let this = self.read(cx);
13354 let user_ids = this.collaborators().values().map(|c| c.user_id);
13355 this.user_store().read_with(cx, |user_store, cx| {
13356 user_store.participant_names(user_ids, cx)
13357 })
13358 }
13359}
13360
13361pub trait SemanticsProvider {
13362 fn hover(
13363 &self,
13364 buffer: &Model<Buffer>,
13365 position: text::Anchor,
13366 cx: &mut AppContext,
13367 ) -> Option<Task<Vec<project::Hover>>>;
13368
13369 fn inlay_hints(
13370 &self,
13371 buffer_handle: Model<Buffer>,
13372 range: Range<text::Anchor>,
13373 cx: &mut AppContext,
13374 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13375
13376 fn resolve_inlay_hint(
13377 &self,
13378 hint: InlayHint,
13379 buffer_handle: Model<Buffer>,
13380 server_id: LanguageServerId,
13381 cx: &mut AppContext,
13382 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13383
13384 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13385
13386 fn document_highlights(
13387 &self,
13388 buffer: &Model<Buffer>,
13389 position: text::Anchor,
13390 cx: &mut AppContext,
13391 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13392
13393 fn definitions(
13394 &self,
13395 buffer: &Model<Buffer>,
13396 position: text::Anchor,
13397 kind: GotoDefinitionKind,
13398 cx: &mut AppContext,
13399 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13400
13401 fn range_for_rename(
13402 &self,
13403 buffer: &Model<Buffer>,
13404 position: text::Anchor,
13405 cx: &mut AppContext,
13406 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13407
13408 fn perform_rename(
13409 &self,
13410 buffer: &Model<Buffer>,
13411 position: text::Anchor,
13412 new_name: String,
13413 cx: &mut AppContext,
13414 ) -> Option<Task<Result<ProjectTransaction>>>;
13415}
13416
13417pub trait CompletionProvider {
13418 fn completions(
13419 &self,
13420 buffer: &Model<Buffer>,
13421 buffer_position: text::Anchor,
13422 trigger: CompletionContext,
13423 cx: &mut ViewContext<Editor>,
13424 ) -> Task<Result<Vec<Completion>>>;
13425
13426 fn resolve_completions(
13427 &self,
13428 buffer: Model<Buffer>,
13429 completion_indices: Vec<usize>,
13430 completions: Rc<RefCell<Box<[Completion]>>>,
13431 cx: &mut ViewContext<Editor>,
13432 ) -> Task<Result<bool>>;
13433
13434 fn apply_additional_edits_for_completion(
13435 &self,
13436 buffer: Model<Buffer>,
13437 completion: Completion,
13438 push_to_history: bool,
13439 cx: &mut ViewContext<Editor>,
13440 ) -> Task<Result<Option<language::Transaction>>>;
13441
13442 fn is_completion_trigger(
13443 &self,
13444 buffer: &Model<Buffer>,
13445 position: language::Anchor,
13446 text: &str,
13447 trigger_in_words: bool,
13448 cx: &mut ViewContext<Editor>,
13449 ) -> bool;
13450
13451 fn sort_completions(&self) -> bool {
13452 true
13453 }
13454}
13455
13456pub trait CodeActionProvider {
13457 fn code_actions(
13458 &self,
13459 buffer: &Model<Buffer>,
13460 range: Range<text::Anchor>,
13461 cx: &mut WindowContext,
13462 ) -> Task<Result<Vec<CodeAction>>>;
13463
13464 fn apply_code_action(
13465 &self,
13466 buffer_handle: Model<Buffer>,
13467 action: CodeAction,
13468 excerpt_id: ExcerptId,
13469 push_to_history: bool,
13470 cx: &mut WindowContext,
13471 ) -> Task<Result<ProjectTransaction>>;
13472}
13473
13474impl CodeActionProvider for Model<Project> {
13475 fn code_actions(
13476 &self,
13477 buffer: &Model<Buffer>,
13478 range: Range<text::Anchor>,
13479 cx: &mut WindowContext,
13480 ) -> Task<Result<Vec<CodeAction>>> {
13481 self.update(cx, |project, cx| {
13482 project.code_actions(buffer, range, None, cx)
13483 })
13484 }
13485
13486 fn apply_code_action(
13487 &self,
13488 buffer_handle: Model<Buffer>,
13489 action: CodeAction,
13490 _excerpt_id: ExcerptId,
13491 push_to_history: bool,
13492 cx: &mut WindowContext,
13493 ) -> Task<Result<ProjectTransaction>> {
13494 self.update(cx, |project, cx| {
13495 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13496 })
13497 }
13498}
13499
13500fn snippet_completions(
13501 project: &Project,
13502 buffer: &Model<Buffer>,
13503 buffer_position: text::Anchor,
13504 cx: &mut AppContext,
13505) -> Task<Result<Vec<Completion>>> {
13506 let language = buffer.read(cx).language_at(buffer_position);
13507 let language_name = language.as_ref().map(|language| language.lsp_id());
13508 let snippet_store = project.snippets().read(cx);
13509 let snippets = snippet_store.snippets_for(language_name, cx);
13510
13511 if snippets.is_empty() {
13512 return Task::ready(Ok(vec![]));
13513 }
13514 let snapshot = buffer.read(cx).text_snapshot();
13515 let chars: String = snapshot
13516 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13517 .collect();
13518
13519 let scope = language.map(|language| language.default_scope());
13520 let executor = cx.background_executor().clone();
13521
13522 cx.background_executor().spawn(async move {
13523 let classifier = CharClassifier::new(scope).for_completion(true);
13524 let mut last_word = chars
13525 .chars()
13526 .take_while(|c| classifier.is_word(*c))
13527 .collect::<String>();
13528 last_word = last_word.chars().rev().collect();
13529
13530 if last_word.is_empty() {
13531 return Ok(vec![]);
13532 }
13533
13534 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13535 let to_lsp = |point: &text::Anchor| {
13536 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13537 point_to_lsp(end)
13538 };
13539 let lsp_end = to_lsp(&buffer_position);
13540
13541 let candidates = snippets
13542 .iter()
13543 .enumerate()
13544 .flat_map(|(ix, snippet)| {
13545 snippet
13546 .prefix
13547 .iter()
13548 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13549 })
13550 .collect::<Vec<StringMatchCandidate>>();
13551
13552 let mut matches = fuzzy::match_strings(
13553 &candidates,
13554 &last_word,
13555 last_word.chars().any(|c| c.is_uppercase()),
13556 100,
13557 &Default::default(),
13558 executor,
13559 )
13560 .await;
13561
13562 // Remove all candidates where the query's start does not match the start of any word in the candidate
13563 if let Some(query_start) = last_word.chars().next() {
13564 matches.retain(|string_match| {
13565 split_words(&string_match.string).any(|word| {
13566 // Check that the first codepoint of the word as lowercase matches the first
13567 // codepoint of the query as lowercase
13568 word.chars()
13569 .flat_map(|codepoint| codepoint.to_lowercase())
13570 .zip(query_start.to_lowercase())
13571 .all(|(word_cp, query_cp)| word_cp == query_cp)
13572 })
13573 });
13574 }
13575
13576 let matched_strings = matches
13577 .into_iter()
13578 .map(|m| m.string)
13579 .collect::<HashSet<_>>();
13580
13581 let result: Vec<Completion> = snippets
13582 .into_iter()
13583 .filter_map(|snippet| {
13584 let matching_prefix = snippet
13585 .prefix
13586 .iter()
13587 .find(|prefix| matched_strings.contains(*prefix))?;
13588 let start = as_offset - last_word.len();
13589 let start = snapshot.anchor_before(start);
13590 let range = start..buffer_position;
13591 let lsp_start = to_lsp(&start);
13592 let lsp_range = lsp::Range {
13593 start: lsp_start,
13594 end: lsp_end,
13595 };
13596 Some(Completion {
13597 old_range: range,
13598 new_text: snippet.body.clone(),
13599 label: CodeLabel {
13600 text: matching_prefix.clone(),
13601 runs: vec![],
13602 filter_range: 0..matching_prefix.len(),
13603 },
13604 server_id: LanguageServerId(usize::MAX),
13605 documentation: snippet.description.clone().map(Documentation::SingleLine),
13606 lsp_completion: lsp::CompletionItem {
13607 label: snippet.prefix.first().unwrap().clone(),
13608 kind: Some(CompletionItemKind::SNIPPET),
13609 label_details: snippet.description.as_ref().map(|description| {
13610 lsp::CompletionItemLabelDetails {
13611 detail: Some(description.clone()),
13612 description: None,
13613 }
13614 }),
13615 insert_text_format: Some(InsertTextFormat::SNIPPET),
13616 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13617 lsp::InsertReplaceEdit {
13618 new_text: snippet.body.clone(),
13619 insert: lsp_range,
13620 replace: lsp_range,
13621 },
13622 )),
13623 filter_text: Some(snippet.body.clone()),
13624 sort_text: Some(char::MAX.to_string()),
13625 ..Default::default()
13626 },
13627 confirm: None,
13628 })
13629 })
13630 .collect();
13631
13632 Ok(result)
13633 })
13634}
13635
13636impl CompletionProvider for Model<Project> {
13637 fn completions(
13638 &self,
13639 buffer: &Model<Buffer>,
13640 buffer_position: text::Anchor,
13641 options: CompletionContext,
13642 cx: &mut ViewContext<Editor>,
13643 ) -> Task<Result<Vec<Completion>>> {
13644 self.update(cx, |project, cx| {
13645 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13646 let project_completions = project.completions(buffer, buffer_position, options, cx);
13647 cx.background_executor().spawn(async move {
13648 let mut completions = project_completions.await?;
13649 let snippets_completions = snippets.await?;
13650 completions.extend(snippets_completions);
13651 Ok(completions)
13652 })
13653 })
13654 }
13655
13656 fn resolve_completions(
13657 &self,
13658 buffer: Model<Buffer>,
13659 completion_indices: Vec<usize>,
13660 completions: Rc<RefCell<Box<[Completion]>>>,
13661 cx: &mut ViewContext<Editor>,
13662 ) -> Task<Result<bool>> {
13663 self.update(cx, |project, cx| {
13664 project.resolve_completions(buffer, completion_indices, completions, cx)
13665 })
13666 }
13667
13668 fn apply_additional_edits_for_completion(
13669 &self,
13670 buffer: Model<Buffer>,
13671 completion: Completion,
13672 push_to_history: bool,
13673 cx: &mut ViewContext<Editor>,
13674 ) -> Task<Result<Option<language::Transaction>>> {
13675 self.update(cx, |project, cx| {
13676 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13677 })
13678 }
13679
13680 fn is_completion_trigger(
13681 &self,
13682 buffer: &Model<Buffer>,
13683 position: language::Anchor,
13684 text: &str,
13685 trigger_in_words: bool,
13686 cx: &mut ViewContext<Editor>,
13687 ) -> bool {
13688 let mut chars = text.chars();
13689 let char = if let Some(char) = chars.next() {
13690 char
13691 } else {
13692 return false;
13693 };
13694 if chars.next().is_some() {
13695 return false;
13696 }
13697
13698 let buffer = buffer.read(cx);
13699 let snapshot = buffer.snapshot();
13700 if !snapshot.settings_at(position, cx).show_completions_on_input {
13701 return false;
13702 }
13703 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13704 if trigger_in_words && classifier.is_word(char) {
13705 return true;
13706 }
13707
13708 buffer.completion_triggers().contains(text)
13709 }
13710}
13711
13712impl SemanticsProvider for Model<Project> {
13713 fn hover(
13714 &self,
13715 buffer: &Model<Buffer>,
13716 position: text::Anchor,
13717 cx: &mut AppContext,
13718 ) -> Option<Task<Vec<project::Hover>>> {
13719 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13720 }
13721
13722 fn document_highlights(
13723 &self,
13724 buffer: &Model<Buffer>,
13725 position: text::Anchor,
13726 cx: &mut AppContext,
13727 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13728 Some(self.update(cx, |project, cx| {
13729 project.document_highlights(buffer, position, cx)
13730 }))
13731 }
13732
13733 fn definitions(
13734 &self,
13735 buffer: &Model<Buffer>,
13736 position: text::Anchor,
13737 kind: GotoDefinitionKind,
13738 cx: &mut AppContext,
13739 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13740 Some(self.update(cx, |project, cx| match kind {
13741 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13742 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13743 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13744 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13745 }))
13746 }
13747
13748 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13749 // TODO: make this work for remote projects
13750 self.read(cx)
13751 .language_servers_for_local_buffer(buffer.read(cx), cx)
13752 .any(
13753 |(_, server)| match server.capabilities().inlay_hint_provider {
13754 Some(lsp::OneOf::Left(enabled)) => enabled,
13755 Some(lsp::OneOf::Right(_)) => true,
13756 None => false,
13757 },
13758 )
13759 }
13760
13761 fn inlay_hints(
13762 &self,
13763 buffer_handle: Model<Buffer>,
13764 range: Range<text::Anchor>,
13765 cx: &mut AppContext,
13766 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13767 Some(self.update(cx, |project, cx| {
13768 project.inlay_hints(buffer_handle, range, cx)
13769 }))
13770 }
13771
13772 fn resolve_inlay_hint(
13773 &self,
13774 hint: InlayHint,
13775 buffer_handle: Model<Buffer>,
13776 server_id: LanguageServerId,
13777 cx: &mut AppContext,
13778 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13779 Some(self.update(cx, |project, cx| {
13780 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13781 }))
13782 }
13783
13784 fn range_for_rename(
13785 &self,
13786 buffer: &Model<Buffer>,
13787 position: text::Anchor,
13788 cx: &mut AppContext,
13789 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13790 Some(self.update(cx, |project, cx| {
13791 project.prepare_rename(buffer.clone(), position, cx)
13792 }))
13793 }
13794
13795 fn perform_rename(
13796 &self,
13797 buffer: &Model<Buffer>,
13798 position: text::Anchor,
13799 new_name: String,
13800 cx: &mut AppContext,
13801 ) -> Option<Task<Result<ProjectTransaction>>> {
13802 Some(self.update(cx, |project, cx| {
13803 project.perform_rename(buffer.clone(), position, new_name, cx)
13804 }))
13805 }
13806}
13807
13808fn inlay_hint_settings(
13809 location: Anchor,
13810 snapshot: &MultiBufferSnapshot,
13811 cx: &mut ViewContext<'_, Editor>,
13812) -> InlayHintSettings {
13813 let file = snapshot.file_at(location);
13814 let language = snapshot.language_at(location).map(|l| l.name());
13815 language_settings(language, file, cx).inlay_hints
13816}
13817
13818fn consume_contiguous_rows(
13819 contiguous_row_selections: &mut Vec<Selection<Point>>,
13820 selection: &Selection<Point>,
13821 display_map: &DisplaySnapshot,
13822 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13823) -> (MultiBufferRow, MultiBufferRow) {
13824 contiguous_row_selections.push(selection.clone());
13825 let start_row = MultiBufferRow(selection.start.row);
13826 let mut end_row = ending_row(selection, display_map);
13827
13828 while let Some(next_selection) = selections.peek() {
13829 if next_selection.start.row <= end_row.0 {
13830 end_row = ending_row(next_selection, display_map);
13831 contiguous_row_selections.push(selections.next().unwrap().clone());
13832 } else {
13833 break;
13834 }
13835 }
13836 (start_row, end_row)
13837}
13838
13839fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13840 if next_selection.end.column > 0 || next_selection.is_empty() {
13841 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13842 } else {
13843 MultiBufferRow(next_selection.end.row)
13844 }
13845}
13846
13847impl EditorSnapshot {
13848 pub fn remote_selections_in_range<'a>(
13849 &'a self,
13850 range: &'a Range<Anchor>,
13851 collaboration_hub: &dyn CollaborationHub,
13852 cx: &'a AppContext,
13853 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13854 let participant_names = collaboration_hub.user_names(cx);
13855 let participant_indices = collaboration_hub.user_participant_indices(cx);
13856 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13857 let collaborators_by_replica_id = collaborators_by_peer_id
13858 .iter()
13859 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13860 .collect::<HashMap<_, _>>();
13861 self.buffer_snapshot
13862 .selections_in_range(range, false)
13863 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13864 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13865 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13866 let user_name = participant_names.get(&collaborator.user_id).cloned();
13867 Some(RemoteSelection {
13868 replica_id,
13869 selection,
13870 cursor_shape,
13871 line_mode,
13872 participant_index,
13873 peer_id: collaborator.peer_id,
13874 user_name,
13875 })
13876 })
13877 }
13878
13879 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13880 self.display_snapshot.buffer_snapshot.language_at(position)
13881 }
13882
13883 pub fn is_focused(&self) -> bool {
13884 self.is_focused
13885 }
13886
13887 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13888 self.placeholder_text.as_ref()
13889 }
13890
13891 pub fn scroll_position(&self) -> gpui::Point<f32> {
13892 self.scroll_anchor.scroll_position(&self.display_snapshot)
13893 }
13894
13895 fn gutter_dimensions(
13896 &self,
13897 font_id: FontId,
13898 font_size: Pixels,
13899 em_width: Pixels,
13900 em_advance: Pixels,
13901 max_line_number_width: Pixels,
13902 cx: &AppContext,
13903 ) -> GutterDimensions {
13904 if !self.show_gutter {
13905 return GutterDimensions::default();
13906 }
13907 let descent = cx.text_system().descent(font_id, font_size);
13908
13909 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13910 matches!(
13911 ProjectSettings::get_global(cx).git.git_gutter,
13912 Some(GitGutterSetting::TrackedFiles)
13913 )
13914 });
13915 let gutter_settings = EditorSettings::get_global(cx).gutter;
13916 let show_line_numbers = self
13917 .show_line_numbers
13918 .unwrap_or(gutter_settings.line_numbers);
13919 let line_gutter_width = if show_line_numbers {
13920 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13921 let min_width_for_number_on_gutter = em_advance * 4.0;
13922 max_line_number_width.max(min_width_for_number_on_gutter)
13923 } else {
13924 0.0.into()
13925 };
13926
13927 let show_code_actions = self
13928 .show_code_actions
13929 .unwrap_or(gutter_settings.code_actions);
13930
13931 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13932
13933 let git_blame_entries_width =
13934 self.git_blame_gutter_max_author_length
13935 .map(|max_author_length| {
13936 // Length of the author name, but also space for the commit hash,
13937 // the spacing and the timestamp.
13938 let max_char_count = max_author_length
13939 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13940 + 7 // length of commit sha
13941 + 14 // length of max relative timestamp ("60 minutes ago")
13942 + 4; // gaps and margins
13943
13944 em_advance * max_char_count
13945 });
13946
13947 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13948 left_padding += if show_code_actions || show_runnables {
13949 em_width * 3.0
13950 } else if show_git_gutter && show_line_numbers {
13951 em_width * 2.0
13952 } else if show_git_gutter || show_line_numbers {
13953 em_width
13954 } else {
13955 px(0.)
13956 };
13957
13958 let right_padding = if gutter_settings.folds && show_line_numbers {
13959 em_width * 4.0
13960 } else if gutter_settings.folds {
13961 em_width * 3.0
13962 } else if show_line_numbers {
13963 em_width
13964 } else {
13965 px(0.)
13966 };
13967
13968 GutterDimensions {
13969 left_padding,
13970 right_padding,
13971 width: line_gutter_width + left_padding + right_padding,
13972 margin: -descent,
13973 git_blame_entries_width,
13974 }
13975 }
13976
13977 pub fn render_crease_toggle(
13978 &self,
13979 buffer_row: MultiBufferRow,
13980 row_contains_cursor: bool,
13981 editor: View<Editor>,
13982 cx: &mut WindowContext,
13983 ) -> Option<AnyElement> {
13984 let folded = self.is_line_folded(buffer_row);
13985 let mut is_foldable = false;
13986
13987 if let Some(crease) = self
13988 .crease_snapshot
13989 .query_row(buffer_row, &self.buffer_snapshot)
13990 {
13991 is_foldable = true;
13992 match crease {
13993 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
13994 if let Some(render_toggle) = render_toggle {
13995 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13996 if folded {
13997 editor.update(cx, |editor, cx| {
13998 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13999 });
14000 } else {
14001 editor.update(cx, |editor, cx| {
14002 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14003 });
14004 }
14005 });
14006 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14007 }
14008 }
14009 }
14010 }
14011
14012 is_foldable |= self.starts_indent(buffer_row);
14013
14014 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14015 Some(
14016 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14017 .toggle_state(folded)
14018 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14019 if folded {
14020 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14021 } else {
14022 this.fold_at(&FoldAt { buffer_row }, cx);
14023 }
14024 }))
14025 .into_any_element(),
14026 )
14027 } else {
14028 None
14029 }
14030 }
14031
14032 pub fn render_crease_trailer(
14033 &self,
14034 buffer_row: MultiBufferRow,
14035 cx: &mut WindowContext,
14036 ) -> Option<AnyElement> {
14037 let folded = self.is_line_folded(buffer_row);
14038 if let Crease::Inline { render_trailer, .. } = self
14039 .crease_snapshot
14040 .query_row(buffer_row, &self.buffer_snapshot)?
14041 {
14042 let render_trailer = render_trailer.as_ref()?;
14043 Some(render_trailer(buffer_row, folded, cx))
14044 } else {
14045 None
14046 }
14047 }
14048}
14049
14050impl Deref for EditorSnapshot {
14051 type Target = DisplaySnapshot;
14052
14053 fn deref(&self) -> &Self::Target {
14054 &self.display_snapshot
14055 }
14056}
14057
14058#[derive(Clone, Debug, PartialEq, Eq)]
14059pub enum EditorEvent {
14060 InputIgnored {
14061 text: Arc<str>,
14062 },
14063 InputHandled {
14064 utf16_range_to_replace: Option<Range<isize>>,
14065 text: Arc<str>,
14066 },
14067 ExcerptsAdded {
14068 buffer: Model<Buffer>,
14069 predecessor: ExcerptId,
14070 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14071 },
14072 ExcerptsRemoved {
14073 ids: Vec<ExcerptId>,
14074 },
14075 BufferFoldToggled {
14076 ids: Vec<ExcerptId>,
14077 folded: bool,
14078 },
14079 ExcerptsEdited {
14080 ids: Vec<ExcerptId>,
14081 },
14082 ExcerptsExpanded {
14083 ids: Vec<ExcerptId>,
14084 },
14085 BufferEdited,
14086 Edited {
14087 transaction_id: clock::Lamport,
14088 },
14089 Reparsed(BufferId),
14090 Focused,
14091 FocusedIn,
14092 Blurred,
14093 DirtyChanged,
14094 Saved,
14095 TitleChanged,
14096 DiffBaseChanged,
14097 SelectionsChanged {
14098 local: bool,
14099 },
14100 ScrollPositionChanged {
14101 local: bool,
14102 autoscroll: bool,
14103 },
14104 Closed,
14105 TransactionUndone {
14106 transaction_id: clock::Lamport,
14107 },
14108 TransactionBegun {
14109 transaction_id: clock::Lamport,
14110 },
14111 Reloaded,
14112 CursorShapeChanged,
14113}
14114
14115impl EventEmitter<EditorEvent> for Editor {}
14116
14117impl FocusableView for Editor {
14118 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14119 self.focus_handle.clone()
14120 }
14121}
14122
14123impl Render for Editor {
14124 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14125 let settings = ThemeSettings::get_global(cx);
14126
14127 let mut text_style = match self.mode {
14128 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14129 color: cx.theme().colors().editor_foreground,
14130 font_family: settings.ui_font.family.clone(),
14131 font_features: settings.ui_font.features.clone(),
14132 font_fallbacks: settings.ui_font.fallbacks.clone(),
14133 font_size: rems(0.875).into(),
14134 font_weight: settings.ui_font.weight,
14135 line_height: relative(settings.buffer_line_height.value()),
14136 ..Default::default()
14137 },
14138 EditorMode::Full => TextStyle {
14139 color: cx.theme().colors().editor_foreground,
14140 font_family: settings.buffer_font.family.clone(),
14141 font_features: settings.buffer_font.features.clone(),
14142 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14143 font_size: settings.buffer_font_size(cx).into(),
14144 font_weight: settings.buffer_font.weight,
14145 line_height: relative(settings.buffer_line_height.value()),
14146 ..Default::default()
14147 },
14148 };
14149 if let Some(text_style_refinement) = &self.text_style_refinement {
14150 text_style.refine(text_style_refinement)
14151 }
14152
14153 let background = match self.mode {
14154 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14155 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14156 EditorMode::Full => cx.theme().colors().editor_background,
14157 };
14158
14159 EditorElement::new(
14160 cx.view(),
14161 EditorStyle {
14162 background,
14163 local_player: cx.theme().players().local(),
14164 text: text_style,
14165 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14166 syntax: cx.theme().syntax().clone(),
14167 status: cx.theme().status().clone(),
14168 inlay_hints_style: make_inlay_hints_style(cx),
14169 inline_completion_styles: make_suggestion_styles(cx),
14170 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14171 },
14172 )
14173 }
14174}
14175
14176impl ViewInputHandler for Editor {
14177 fn text_for_range(
14178 &mut self,
14179 range_utf16: Range<usize>,
14180 adjusted_range: &mut Option<Range<usize>>,
14181 cx: &mut ViewContext<Self>,
14182 ) -> Option<String> {
14183 let snapshot = self.buffer.read(cx).read(cx);
14184 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14185 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14186 if (start.0..end.0) != range_utf16 {
14187 adjusted_range.replace(start.0..end.0);
14188 }
14189 Some(snapshot.text_for_range(start..end).collect())
14190 }
14191
14192 fn selected_text_range(
14193 &mut self,
14194 ignore_disabled_input: bool,
14195 cx: &mut ViewContext<Self>,
14196 ) -> Option<UTF16Selection> {
14197 // Prevent the IME menu from appearing when holding down an alphabetic key
14198 // while input is disabled.
14199 if !ignore_disabled_input && !self.input_enabled {
14200 return None;
14201 }
14202
14203 let selection = self.selections.newest::<OffsetUtf16>(cx);
14204 let range = selection.range();
14205
14206 Some(UTF16Selection {
14207 range: range.start.0..range.end.0,
14208 reversed: selection.reversed,
14209 })
14210 }
14211
14212 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14213 let snapshot = self.buffer.read(cx).read(cx);
14214 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14215 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14216 }
14217
14218 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14219 self.clear_highlights::<InputComposition>(cx);
14220 self.ime_transaction.take();
14221 }
14222
14223 fn replace_text_in_range(
14224 &mut self,
14225 range_utf16: Option<Range<usize>>,
14226 text: &str,
14227 cx: &mut ViewContext<Self>,
14228 ) {
14229 if !self.input_enabled {
14230 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14231 return;
14232 }
14233
14234 self.transact(cx, |this, cx| {
14235 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14236 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14237 Some(this.selection_replacement_ranges(range_utf16, cx))
14238 } else {
14239 this.marked_text_ranges(cx)
14240 };
14241
14242 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14243 let newest_selection_id = this.selections.newest_anchor().id;
14244 this.selections
14245 .all::<OffsetUtf16>(cx)
14246 .iter()
14247 .zip(ranges_to_replace.iter())
14248 .find_map(|(selection, range)| {
14249 if selection.id == newest_selection_id {
14250 Some(
14251 (range.start.0 as isize - selection.head().0 as isize)
14252 ..(range.end.0 as isize - selection.head().0 as isize),
14253 )
14254 } else {
14255 None
14256 }
14257 })
14258 });
14259
14260 cx.emit(EditorEvent::InputHandled {
14261 utf16_range_to_replace: range_to_replace,
14262 text: text.into(),
14263 });
14264
14265 if let Some(new_selected_ranges) = new_selected_ranges {
14266 this.change_selections(None, cx, |selections| {
14267 selections.select_ranges(new_selected_ranges)
14268 });
14269 this.backspace(&Default::default(), cx);
14270 }
14271
14272 this.handle_input(text, cx);
14273 });
14274
14275 if let Some(transaction) = self.ime_transaction {
14276 self.buffer.update(cx, |buffer, cx| {
14277 buffer.group_until_transaction(transaction, cx);
14278 });
14279 }
14280
14281 self.unmark_text(cx);
14282 }
14283
14284 fn replace_and_mark_text_in_range(
14285 &mut self,
14286 range_utf16: Option<Range<usize>>,
14287 text: &str,
14288 new_selected_range_utf16: Option<Range<usize>>,
14289 cx: &mut ViewContext<Self>,
14290 ) {
14291 if !self.input_enabled {
14292 return;
14293 }
14294
14295 let transaction = self.transact(cx, |this, cx| {
14296 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14297 let snapshot = this.buffer.read(cx).read(cx);
14298 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14299 for marked_range in &mut marked_ranges {
14300 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14301 marked_range.start.0 += relative_range_utf16.start;
14302 marked_range.start =
14303 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14304 marked_range.end =
14305 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14306 }
14307 }
14308 Some(marked_ranges)
14309 } else if let Some(range_utf16) = range_utf16 {
14310 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14311 Some(this.selection_replacement_ranges(range_utf16, cx))
14312 } else {
14313 None
14314 };
14315
14316 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14317 let newest_selection_id = this.selections.newest_anchor().id;
14318 this.selections
14319 .all::<OffsetUtf16>(cx)
14320 .iter()
14321 .zip(ranges_to_replace.iter())
14322 .find_map(|(selection, range)| {
14323 if selection.id == newest_selection_id {
14324 Some(
14325 (range.start.0 as isize - selection.head().0 as isize)
14326 ..(range.end.0 as isize - selection.head().0 as isize),
14327 )
14328 } else {
14329 None
14330 }
14331 })
14332 });
14333
14334 cx.emit(EditorEvent::InputHandled {
14335 utf16_range_to_replace: range_to_replace,
14336 text: text.into(),
14337 });
14338
14339 if let Some(ranges) = ranges_to_replace {
14340 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14341 }
14342
14343 let marked_ranges = {
14344 let snapshot = this.buffer.read(cx).read(cx);
14345 this.selections
14346 .disjoint_anchors()
14347 .iter()
14348 .map(|selection| {
14349 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14350 })
14351 .collect::<Vec<_>>()
14352 };
14353
14354 if text.is_empty() {
14355 this.unmark_text(cx);
14356 } else {
14357 this.highlight_text::<InputComposition>(
14358 marked_ranges.clone(),
14359 HighlightStyle {
14360 underline: Some(UnderlineStyle {
14361 thickness: px(1.),
14362 color: None,
14363 wavy: false,
14364 }),
14365 ..Default::default()
14366 },
14367 cx,
14368 );
14369 }
14370
14371 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14372 let use_autoclose = this.use_autoclose;
14373 let use_auto_surround = this.use_auto_surround;
14374 this.set_use_autoclose(false);
14375 this.set_use_auto_surround(false);
14376 this.handle_input(text, cx);
14377 this.set_use_autoclose(use_autoclose);
14378 this.set_use_auto_surround(use_auto_surround);
14379
14380 if let Some(new_selected_range) = new_selected_range_utf16 {
14381 let snapshot = this.buffer.read(cx).read(cx);
14382 let new_selected_ranges = marked_ranges
14383 .into_iter()
14384 .map(|marked_range| {
14385 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14386 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14387 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14388 snapshot.clip_offset_utf16(new_start, Bias::Left)
14389 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14390 })
14391 .collect::<Vec<_>>();
14392
14393 drop(snapshot);
14394 this.change_selections(None, cx, |selections| {
14395 selections.select_ranges(new_selected_ranges)
14396 });
14397 }
14398 });
14399
14400 self.ime_transaction = self.ime_transaction.or(transaction);
14401 if let Some(transaction) = self.ime_transaction {
14402 self.buffer.update(cx, |buffer, cx| {
14403 buffer.group_until_transaction(transaction, cx);
14404 });
14405 }
14406
14407 if self.text_highlights::<InputComposition>(cx).is_none() {
14408 self.ime_transaction.take();
14409 }
14410 }
14411
14412 fn bounds_for_range(
14413 &mut self,
14414 range_utf16: Range<usize>,
14415 element_bounds: gpui::Bounds<Pixels>,
14416 cx: &mut ViewContext<Self>,
14417 ) -> Option<gpui::Bounds<Pixels>> {
14418 let text_layout_details = self.text_layout_details(cx);
14419 let gpui::Point {
14420 x: em_width,
14421 y: line_height,
14422 } = self.character_size(cx);
14423
14424 let snapshot = self.snapshot(cx);
14425 let scroll_position = snapshot.scroll_position();
14426 let scroll_left = scroll_position.x * em_width;
14427
14428 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14429 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14430 + self.gutter_dimensions.width
14431 + self.gutter_dimensions.margin;
14432 let y = line_height * (start.row().as_f32() - scroll_position.y);
14433
14434 Some(Bounds {
14435 origin: element_bounds.origin + point(x, y),
14436 size: size(em_width, line_height),
14437 })
14438 }
14439}
14440
14441trait SelectionExt {
14442 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14443 fn spanned_rows(
14444 &self,
14445 include_end_if_at_line_start: bool,
14446 map: &DisplaySnapshot,
14447 ) -> Range<MultiBufferRow>;
14448}
14449
14450impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14451 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14452 let start = self
14453 .start
14454 .to_point(&map.buffer_snapshot)
14455 .to_display_point(map);
14456 let end = self
14457 .end
14458 .to_point(&map.buffer_snapshot)
14459 .to_display_point(map);
14460 if self.reversed {
14461 end..start
14462 } else {
14463 start..end
14464 }
14465 }
14466
14467 fn spanned_rows(
14468 &self,
14469 include_end_if_at_line_start: bool,
14470 map: &DisplaySnapshot,
14471 ) -> Range<MultiBufferRow> {
14472 let start = self.start.to_point(&map.buffer_snapshot);
14473 let mut end = self.end.to_point(&map.buffer_snapshot);
14474 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14475 end.row -= 1;
14476 }
14477
14478 let buffer_start = map.prev_line_boundary(start).0;
14479 let buffer_end = map.next_line_boundary(end).0;
14480 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14481 }
14482}
14483
14484impl<T: InvalidationRegion> InvalidationStack<T> {
14485 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14486 where
14487 S: Clone + ToOffset,
14488 {
14489 while let Some(region) = self.last() {
14490 let all_selections_inside_invalidation_ranges =
14491 if selections.len() == region.ranges().len() {
14492 selections
14493 .iter()
14494 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14495 .all(|(selection, invalidation_range)| {
14496 let head = selection.head().to_offset(buffer);
14497 invalidation_range.start <= head && invalidation_range.end >= head
14498 })
14499 } else {
14500 false
14501 };
14502
14503 if all_selections_inside_invalidation_ranges {
14504 break;
14505 } else {
14506 self.pop();
14507 }
14508 }
14509 }
14510}
14511
14512impl<T> Default for InvalidationStack<T> {
14513 fn default() -> Self {
14514 Self(Default::default())
14515 }
14516}
14517
14518impl<T> Deref for InvalidationStack<T> {
14519 type Target = Vec<T>;
14520
14521 fn deref(&self) -> &Self::Target {
14522 &self.0
14523 }
14524}
14525
14526impl<T> DerefMut for InvalidationStack<T> {
14527 fn deref_mut(&mut self) -> &mut Self::Target {
14528 &mut self.0
14529 }
14530}
14531
14532impl InvalidationRegion for SnippetState {
14533 fn ranges(&self) -> &[Range<Anchor>] {
14534 &self.ranges[self.active_index]
14535 }
14536}
14537
14538pub fn diagnostic_block_renderer(
14539 diagnostic: Diagnostic,
14540 max_message_rows: Option<u8>,
14541 allow_closing: bool,
14542 _is_valid: bool,
14543) -> RenderBlock {
14544 let (text_without_backticks, code_ranges) =
14545 highlight_diagnostic_message(&diagnostic, max_message_rows);
14546
14547 Arc::new(move |cx: &mut BlockContext| {
14548 let group_id: SharedString = cx.block_id.to_string().into();
14549
14550 let mut text_style = cx.text_style().clone();
14551 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14552 let theme_settings = ThemeSettings::get_global(cx);
14553 text_style.font_family = theme_settings.buffer_font.family.clone();
14554 text_style.font_style = theme_settings.buffer_font.style;
14555 text_style.font_features = theme_settings.buffer_font.features.clone();
14556 text_style.font_weight = theme_settings.buffer_font.weight;
14557
14558 let multi_line_diagnostic = diagnostic.message.contains('\n');
14559
14560 let buttons = |diagnostic: &Diagnostic| {
14561 if multi_line_diagnostic {
14562 v_flex()
14563 } else {
14564 h_flex()
14565 }
14566 .when(allow_closing, |div| {
14567 div.children(diagnostic.is_primary.then(|| {
14568 IconButton::new("close-block", IconName::XCircle)
14569 .icon_color(Color::Muted)
14570 .size(ButtonSize::Compact)
14571 .style(ButtonStyle::Transparent)
14572 .visible_on_hover(group_id.clone())
14573 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14574 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14575 }))
14576 })
14577 .child(
14578 IconButton::new("copy-block", IconName::Copy)
14579 .icon_color(Color::Muted)
14580 .size(ButtonSize::Compact)
14581 .style(ButtonStyle::Transparent)
14582 .visible_on_hover(group_id.clone())
14583 .on_click({
14584 let message = diagnostic.message.clone();
14585 move |_click, cx| {
14586 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14587 }
14588 })
14589 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14590 )
14591 };
14592
14593 let icon_size = buttons(&diagnostic)
14594 .into_any_element()
14595 .layout_as_root(AvailableSpace::min_size(), cx);
14596
14597 h_flex()
14598 .id(cx.block_id)
14599 .group(group_id.clone())
14600 .relative()
14601 .size_full()
14602 .block_mouse_down()
14603 .pl(cx.gutter_dimensions.width)
14604 .w(cx.max_width - cx.gutter_dimensions.full_width())
14605 .child(
14606 div()
14607 .flex()
14608 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14609 .flex_shrink(),
14610 )
14611 .child(buttons(&diagnostic))
14612 .child(div().flex().flex_shrink_0().child(
14613 StyledText::new(text_without_backticks.clone()).with_highlights(
14614 &text_style,
14615 code_ranges.iter().map(|range| {
14616 (
14617 range.clone(),
14618 HighlightStyle {
14619 font_weight: Some(FontWeight::BOLD),
14620 ..Default::default()
14621 },
14622 )
14623 }),
14624 ),
14625 ))
14626 .into_any_element()
14627 })
14628}
14629
14630fn inline_completion_edit_text(
14631 editor_snapshot: &EditorSnapshot,
14632 edits: &Vec<(Range<Anchor>, String)>,
14633 include_deletions: bool,
14634 cx: &WindowContext,
14635) -> InlineCompletionText {
14636 let edit_start = edits
14637 .first()
14638 .unwrap()
14639 .0
14640 .start
14641 .to_display_point(editor_snapshot);
14642
14643 let mut text = String::new();
14644 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14645 let mut highlights = Vec::new();
14646 for (old_range, new_text) in edits {
14647 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14648 text.extend(
14649 editor_snapshot
14650 .buffer_snapshot
14651 .chunks(offset..old_offset_range.start, false)
14652 .map(|chunk| chunk.text),
14653 );
14654 offset = old_offset_range.end;
14655
14656 let start = text.len();
14657 let color = if include_deletions && new_text.is_empty() {
14658 text.extend(
14659 editor_snapshot
14660 .buffer_snapshot
14661 .chunks(old_offset_range.start..offset, false)
14662 .map(|chunk| chunk.text),
14663 );
14664 cx.theme().status().deleted_background
14665 } else {
14666 text.push_str(new_text);
14667 cx.theme().status().created_background
14668 };
14669 let end = text.len();
14670
14671 highlights.push((
14672 start..end,
14673 HighlightStyle {
14674 background_color: Some(color),
14675 ..Default::default()
14676 },
14677 ));
14678 }
14679
14680 let edit_end = edits
14681 .last()
14682 .unwrap()
14683 .0
14684 .end
14685 .to_display_point(editor_snapshot);
14686 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14687 .to_offset(editor_snapshot, Bias::Right);
14688 text.extend(
14689 editor_snapshot
14690 .buffer_snapshot
14691 .chunks(offset..end_of_line, false)
14692 .map(|chunk| chunk.text),
14693 );
14694
14695 InlineCompletionText::Edit {
14696 text: text.into(),
14697 highlights,
14698 }
14699}
14700
14701pub fn highlight_diagnostic_message(
14702 diagnostic: &Diagnostic,
14703 mut max_message_rows: Option<u8>,
14704) -> (SharedString, Vec<Range<usize>>) {
14705 let mut text_without_backticks = String::new();
14706 let mut code_ranges = Vec::new();
14707
14708 if let Some(source) = &diagnostic.source {
14709 text_without_backticks.push_str(source);
14710 code_ranges.push(0..source.len());
14711 text_without_backticks.push_str(": ");
14712 }
14713
14714 let mut prev_offset = 0;
14715 let mut in_code_block = false;
14716 let has_row_limit = max_message_rows.is_some();
14717 let mut newline_indices = diagnostic
14718 .message
14719 .match_indices('\n')
14720 .filter(|_| has_row_limit)
14721 .map(|(ix, _)| ix)
14722 .fuse()
14723 .peekable();
14724
14725 for (quote_ix, _) in diagnostic
14726 .message
14727 .match_indices('`')
14728 .chain([(diagnostic.message.len(), "")])
14729 {
14730 let mut first_newline_ix = None;
14731 let mut last_newline_ix = None;
14732 while let Some(newline_ix) = newline_indices.peek() {
14733 if *newline_ix < quote_ix {
14734 if first_newline_ix.is_none() {
14735 first_newline_ix = Some(*newline_ix);
14736 }
14737 last_newline_ix = Some(*newline_ix);
14738
14739 if let Some(rows_left) = &mut max_message_rows {
14740 if *rows_left == 0 {
14741 break;
14742 } else {
14743 *rows_left -= 1;
14744 }
14745 }
14746 let _ = newline_indices.next();
14747 } else {
14748 break;
14749 }
14750 }
14751 let prev_len = text_without_backticks.len();
14752 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14753 text_without_backticks.push_str(new_text);
14754 if in_code_block {
14755 code_ranges.push(prev_len..text_without_backticks.len());
14756 }
14757 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14758 in_code_block = !in_code_block;
14759 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14760 text_without_backticks.push_str("...");
14761 break;
14762 }
14763 }
14764
14765 (text_without_backticks.into(), code_ranges)
14766}
14767
14768fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14769 match severity {
14770 DiagnosticSeverity::ERROR => colors.error,
14771 DiagnosticSeverity::WARNING => colors.warning,
14772 DiagnosticSeverity::INFORMATION => colors.info,
14773 DiagnosticSeverity::HINT => colors.info,
14774 _ => colors.ignored,
14775 }
14776}
14777
14778pub fn styled_runs_for_code_label<'a>(
14779 label: &'a CodeLabel,
14780 syntax_theme: &'a theme::SyntaxTheme,
14781) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14782 let fade_out = HighlightStyle {
14783 fade_out: Some(0.35),
14784 ..Default::default()
14785 };
14786
14787 let mut prev_end = label.filter_range.end;
14788 label
14789 .runs
14790 .iter()
14791 .enumerate()
14792 .flat_map(move |(ix, (range, highlight_id))| {
14793 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14794 style
14795 } else {
14796 return Default::default();
14797 };
14798 let mut muted_style = style;
14799 muted_style.highlight(fade_out);
14800
14801 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14802 if range.start >= label.filter_range.end {
14803 if range.start > prev_end {
14804 runs.push((prev_end..range.start, fade_out));
14805 }
14806 runs.push((range.clone(), muted_style));
14807 } else if range.end <= label.filter_range.end {
14808 runs.push((range.clone(), style));
14809 } else {
14810 runs.push((range.start..label.filter_range.end, style));
14811 runs.push((label.filter_range.end..range.end, muted_style));
14812 }
14813 prev_end = cmp::max(prev_end, range.end);
14814
14815 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14816 runs.push((prev_end..label.text.len(), fade_out));
14817 }
14818
14819 runs
14820 })
14821}
14822
14823pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14824 let mut prev_index = 0;
14825 let mut prev_codepoint: Option<char> = None;
14826 text.char_indices()
14827 .chain([(text.len(), '\0')])
14828 .filter_map(move |(index, codepoint)| {
14829 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14830 let is_boundary = index == text.len()
14831 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14832 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14833 if is_boundary {
14834 let chunk = &text[prev_index..index];
14835 prev_index = index;
14836 Some(chunk)
14837 } else {
14838 None
14839 }
14840 })
14841}
14842
14843pub trait RangeToAnchorExt: Sized {
14844 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14845
14846 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14847 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14848 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14849 }
14850}
14851
14852impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14853 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14854 let start_offset = self.start.to_offset(snapshot);
14855 let end_offset = self.end.to_offset(snapshot);
14856 if start_offset == end_offset {
14857 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14858 } else {
14859 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14860 }
14861 }
14862}
14863
14864pub trait RowExt {
14865 fn as_f32(&self) -> f32;
14866
14867 fn next_row(&self) -> Self;
14868
14869 fn previous_row(&self) -> Self;
14870
14871 fn minus(&self, other: Self) -> u32;
14872}
14873
14874impl RowExt for DisplayRow {
14875 fn as_f32(&self) -> f32 {
14876 self.0 as f32
14877 }
14878
14879 fn next_row(&self) -> Self {
14880 Self(self.0 + 1)
14881 }
14882
14883 fn previous_row(&self) -> Self {
14884 Self(self.0.saturating_sub(1))
14885 }
14886
14887 fn minus(&self, other: Self) -> u32 {
14888 self.0 - other.0
14889 }
14890}
14891
14892impl RowExt for MultiBufferRow {
14893 fn as_f32(&self) -> f32 {
14894 self.0 as f32
14895 }
14896
14897 fn next_row(&self) -> Self {
14898 Self(self.0 + 1)
14899 }
14900
14901 fn previous_row(&self) -> Self {
14902 Self(self.0.saturating_sub(1))
14903 }
14904
14905 fn minus(&self, other: Self) -> u32 {
14906 self.0 - other.0
14907 }
14908}
14909
14910trait RowRangeExt {
14911 type Row;
14912
14913 fn len(&self) -> usize;
14914
14915 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14916}
14917
14918impl RowRangeExt for Range<MultiBufferRow> {
14919 type Row = MultiBufferRow;
14920
14921 fn len(&self) -> usize {
14922 (self.end.0 - self.start.0) as usize
14923 }
14924
14925 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14926 (self.start.0..self.end.0).map(MultiBufferRow)
14927 }
14928}
14929
14930impl RowRangeExt for Range<DisplayRow> {
14931 type Row = DisplayRow;
14932
14933 fn len(&self) -> usize {
14934 (self.end.0 - self.start.0) as usize
14935 }
14936
14937 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14938 (self.start.0..self.end.0).map(DisplayRow)
14939 }
14940}
14941
14942fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14943 if hunk.diff_base_byte_range.is_empty() {
14944 DiffHunkStatus::Added
14945 } else if hunk.row_range.is_empty() {
14946 DiffHunkStatus::Removed
14947 } else {
14948 DiffHunkStatus::Modified
14949 }
14950}
14951
14952/// If select range has more than one line, we
14953/// just point the cursor to range.start.
14954fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14955 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14956 range
14957 } else {
14958 range.start..range.start
14959 }
14960}
14961
14962pub struct KillRing(ClipboardItem);
14963impl Global for KillRing {}
14964
14965const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);