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, DiagnosticEntry, Documentation, IndentKind, IndentSize, Language,
103 OffsetRangeExt, 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 buffer_store::BufferChangeSet,
132 lsp_store::{FormatTrigger, LspFormatTarget, OpenLspBufferHandle},
133 project_settings::{GitGutterSetting, ProjectSettings},
134 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
135 LspStore, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
136};
137use rand::prelude::*;
138use rpc::{proto::*, ErrorExt};
139use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
140use selections_collection::{
141 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
142};
143use serde::{Deserialize, Serialize};
144use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
145use smallvec::SmallVec;
146use snippet::Snippet;
147use std::{
148 any::TypeId,
149 borrow::Cow,
150 cell::RefCell,
151 cmp::{self, Ordering, Reverse},
152 mem,
153 num::NonZeroU32,
154 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
155 path::{Path, PathBuf},
156 rc::Rc,
157 sync::Arc,
158 time::{Duration, Instant},
159};
160pub use sum_tree::Bias;
161use sum_tree::TreeMap;
162use text::{BufferId, OffsetUtf16, Rope};
163use theme::{
164 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
165 ThemeColors, ThemeSettings,
166};
167use ui::{
168 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
169 PopoverMenuHandle, Tooltip,
170};
171use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
172use workspace::item::{ItemHandle, PreviewTabsSettings};
173use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
174use workspace::{
175 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
176};
177use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
178
179use crate::hover_links::{find_url, find_url_from_range};
180use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
181
182pub const FILE_HEADER_HEIGHT: u32 = 2;
183pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
184pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
185pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
186const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
187const MAX_LINE_LEN: usize = 1024;
188const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
189const MAX_SELECTION_HISTORY_LEN: usize = 1024;
190pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
191#[doc(hidden)]
192pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
193
194pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
195pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
196
197pub fn render_parsed_markdown(
198 element_id: impl Into<ElementId>,
199 parsed: &language::ParsedMarkdown,
200 editor_style: &EditorStyle,
201 workspace: Option<WeakView<Workspace>>,
202 cx: &mut WindowContext,
203) -> InteractiveText {
204 let code_span_background_color = cx
205 .theme()
206 .colors()
207 .editor_document_highlight_read_background;
208
209 let highlights = gpui::combine_highlights(
210 parsed.highlights.iter().filter_map(|(range, highlight)| {
211 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
212 Some((range.clone(), highlight))
213 }),
214 parsed
215 .regions
216 .iter()
217 .zip(&parsed.region_ranges)
218 .filter_map(|(region, range)| {
219 if region.code {
220 Some((
221 range.clone(),
222 HighlightStyle {
223 background_color: Some(code_span_background_color),
224 ..Default::default()
225 },
226 ))
227 } else {
228 None
229 }
230 }),
231 );
232
233 let mut links = Vec::new();
234 let mut link_ranges = Vec::new();
235 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
236 if let Some(link) = region.link.clone() {
237 links.push(link);
238 link_ranges.push(range.clone());
239 }
240 }
241
242 InteractiveText::new(
243 element_id,
244 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
245 )
246 .on_click(link_ranges, move |clicked_range_ix, cx| {
247 match &links[clicked_range_ix] {
248 markdown::Link::Web { url } => cx.open_url(url),
249 markdown::Link::Path { path } => {
250 if let Some(workspace) = &workspace {
251 _ = workspace.update(cx, |workspace, cx| {
252 workspace.open_abs_path(path.clone(), false, cx).detach();
253 });
254 }
255 }
256 }
257 })
258}
259
260#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
261pub enum InlayId {
262 InlineCompletion(usize),
263 Hint(usize),
264}
265
266impl InlayId {
267 fn id(&self) -> usize {
268 match self {
269 Self::InlineCompletion(id) => *id,
270 Self::Hint(id) => *id,
271 }
272 }
273}
274
275enum DiffRowHighlight {}
276enum DocumentHighlightRead {}
277enum DocumentHighlightWrite {}
278enum InputComposition {}
279
280#[derive(Debug, Copy, Clone, PartialEq, Eq)]
281pub enum Navigated {
282 Yes,
283 No,
284}
285
286impl Navigated {
287 pub fn from_bool(yes: bool) -> Navigated {
288 if yes {
289 Navigated::Yes
290 } else {
291 Navigated::No
292 }
293 }
294}
295
296pub fn init_settings(cx: &mut AppContext) {
297 EditorSettings::register(cx);
298}
299
300pub fn init(cx: &mut AppContext) {
301 init_settings(cx);
302
303 workspace::register_project_item::<Editor>(cx);
304 workspace::FollowableViewRegistry::register::<Editor>(cx);
305 workspace::register_serializable_item::<Editor>(cx);
306
307 cx.observe_new_views(
308 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
309 workspace.register_action(Editor::new_file);
310 workspace.register_action(Editor::new_file_vertical);
311 workspace.register_action(Editor::new_file_horizontal);
312 },
313 )
314 .detach();
315
316 cx.on_action(move |_: &workspace::NewFile, cx| {
317 let app_state = workspace::AppState::global(cx);
318 if let Some(app_state) = app_state.upgrade() {
319 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
320 Editor::new_file(workspace, &Default::default(), cx)
321 })
322 .detach();
323 }
324 });
325 cx.on_action(move |_: &workspace::NewWindow, cx| {
326 let app_state = workspace::AppState::global(cx);
327 if let Some(app_state) = app_state.upgrade() {
328 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
329 Editor::new_file(workspace, &Default::default(), cx)
330 })
331 .detach();
332 }
333 });
334 git::project_diff::init(cx);
335}
336
337pub struct SearchWithinRange;
338
339trait InvalidationRegion {
340 fn ranges(&self) -> &[Range<Anchor>];
341}
342
343#[derive(Clone, Debug, PartialEq)]
344pub enum SelectPhase {
345 Begin {
346 position: DisplayPoint,
347 add: bool,
348 click_count: usize,
349 },
350 BeginColumnar {
351 position: DisplayPoint,
352 reset: bool,
353 goal_column: u32,
354 },
355 Extend {
356 position: DisplayPoint,
357 click_count: usize,
358 },
359 Update {
360 position: DisplayPoint,
361 goal_column: u32,
362 scroll_delta: gpui::Point<f32>,
363 },
364 End,
365}
366
367#[derive(Clone, Debug)]
368pub enum SelectMode {
369 Character,
370 Word(Range<Anchor>),
371 Line(Range<Anchor>),
372 All,
373}
374
375#[derive(Copy, Clone, PartialEq, Eq, Debug)]
376pub enum EditorMode {
377 SingleLine { auto_width: bool },
378 AutoHeight { max_lines: usize },
379 Full,
380}
381
382#[derive(Copy, Clone, Debug)]
383pub enum SoftWrap {
384 /// Prefer not to wrap at all.
385 ///
386 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
387 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
388 GitDiff,
389 /// Prefer a single line generally, unless an overly long line is encountered.
390 None,
391 /// Soft wrap lines that exceed the editor width.
392 EditorWidth,
393 /// Soft wrap lines at the preferred line length.
394 Column(u32),
395 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
396 Bounded(u32),
397}
398
399#[derive(Clone)]
400pub struct EditorStyle {
401 pub background: Hsla,
402 pub local_player: PlayerColor,
403 pub text: TextStyle,
404 pub scrollbar_width: Pixels,
405 pub syntax: Arc<SyntaxTheme>,
406 pub status: StatusColors,
407 pub inlay_hints_style: HighlightStyle,
408 pub inline_completion_styles: InlineCompletionStyles,
409 pub unnecessary_code_fade: f32,
410}
411
412impl Default for EditorStyle {
413 fn default() -> Self {
414 Self {
415 background: Hsla::default(),
416 local_player: PlayerColor::default(),
417 text: TextStyle::default(),
418 scrollbar_width: Pixels::default(),
419 syntax: Default::default(),
420 // HACK: Status colors don't have a real default.
421 // We should look into removing the status colors from the editor
422 // style and retrieve them directly from the theme.
423 status: StatusColors::dark(),
424 inlay_hints_style: HighlightStyle::default(),
425 inline_completion_styles: InlineCompletionStyles {
426 insertion: HighlightStyle::default(),
427 whitespace: HighlightStyle::default(),
428 },
429 unnecessary_code_fade: Default::default(),
430 }
431 }
432}
433
434pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
435 let show_background = language_settings::language_settings(None, None, cx)
436 .inlay_hints
437 .show_background;
438
439 HighlightStyle {
440 color: Some(cx.theme().status().hint),
441 background_color: show_background.then(|| cx.theme().status().hint_background),
442 ..HighlightStyle::default()
443 }
444}
445
446pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
447 InlineCompletionStyles {
448 insertion: HighlightStyle {
449 color: Some(cx.theme().status().predictive),
450 ..HighlightStyle::default()
451 },
452 whitespace: HighlightStyle {
453 background_color: Some(cx.theme().status().created_background),
454 ..HighlightStyle::default()
455 },
456 }
457}
458
459type CompletionId = usize;
460
461#[derive(Debug, Clone)]
462struct InlineCompletionMenuHint {
463 provider_name: &'static str,
464 text: InlineCompletionText,
465}
466
467#[derive(Clone, Debug)]
468enum InlineCompletionText {
469 Move(SharedString),
470 Edit {
471 text: SharedString,
472 highlights: Vec<(Range<usize>, HighlightStyle)>,
473 },
474}
475
476enum InlineCompletion {
477 Edit(Vec<(Range<Anchor>, String)>),
478 Move(Anchor),
479}
480
481struct InlineCompletionState {
482 inlay_ids: Vec<InlayId>,
483 completion: InlineCompletion,
484 invalidation_range: Range<Anchor>,
485}
486
487enum InlineCompletionHighlight {}
488
489#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
490struct EditorActionId(usize);
491
492impl EditorActionId {
493 pub fn post_inc(&mut self) -> Self {
494 let answer = self.0;
495
496 *self = Self(answer + 1);
497
498 Self(answer)
499 }
500}
501
502// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
503// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
504
505type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
506type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
507
508#[derive(Default)]
509struct ScrollbarMarkerState {
510 scrollbar_size: Size<Pixels>,
511 dirty: bool,
512 markers: Arc<[PaintQuad]>,
513 pending_refresh: Option<Task<Result<()>>>,
514}
515
516impl ScrollbarMarkerState {
517 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
518 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
519 }
520}
521
522#[derive(Clone, Debug)]
523struct RunnableTasks {
524 templates: Vec<(TaskSourceKind, TaskTemplate)>,
525 offset: MultiBufferOffset,
526 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
527 column: u32,
528 // Values of all named captures, including those starting with '_'
529 extra_variables: HashMap<String, String>,
530 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
531 context_range: Range<BufferOffset>,
532}
533
534impl RunnableTasks {
535 fn resolve<'a>(
536 &'a self,
537 cx: &'a task::TaskContext,
538 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
539 self.templates.iter().filter_map(|(kind, template)| {
540 template
541 .resolve_task(&kind.to_id_base(), cx)
542 .map(|task| (kind.clone(), task))
543 })
544 }
545}
546
547#[derive(Clone)]
548struct ResolvedTasks {
549 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
550 position: Anchor,
551}
552#[derive(Copy, Clone, Debug)]
553struct MultiBufferOffset(usize);
554#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
555struct BufferOffset(usize);
556
557// Addons allow storing per-editor state in other crates (e.g. Vim)
558pub trait Addon: 'static {
559 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
560
561 fn to_any(&self) -> &dyn std::any::Any;
562}
563
564#[derive(Debug, Copy, Clone, PartialEq, Eq)]
565pub enum IsVimMode {
566 Yes,
567 No,
568}
569
570/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
571///
572/// See the [module level documentation](self) for more information.
573pub struct Editor {
574 focus_handle: FocusHandle,
575 last_focused_descendant: Option<WeakFocusHandle>,
576 /// The text buffer being edited
577 buffer: Model<MultiBuffer>,
578 /// Map of how text in the buffer should be displayed.
579 /// Handles soft wraps, folds, fake inlay text insertions, etc.
580 pub display_map: Model<DisplayMap>,
581 pub selections: SelectionsCollection,
582 pub scroll_manager: ScrollManager,
583 /// When inline assist editors are linked, they all render cursors because
584 /// typing enters text into each of them, even the ones that aren't focused.
585 pub(crate) show_cursor_when_unfocused: bool,
586 columnar_selection_tail: Option<Anchor>,
587 add_selections_state: Option<AddSelectionsState>,
588 select_next_state: Option<SelectNextState>,
589 select_prev_state: Option<SelectNextState>,
590 selection_history: SelectionHistory,
591 autoclose_regions: Vec<AutocloseRegion>,
592 snippet_stack: InvalidationStack<SnippetState>,
593 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
594 ime_transaction: Option<TransactionId>,
595 active_diagnostics: Option<ActiveDiagnosticGroup>,
596 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
597
598 project: Option<Model<Project>>,
599 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
600 completion_provider: Option<Box<dyn CompletionProvider>>,
601 collaboration_hub: Option<Box<dyn CollaborationHub>>,
602 blink_manager: Model<BlinkManager>,
603 show_cursor_names: bool,
604 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
605 pub show_local_selections: bool,
606 mode: EditorMode,
607 show_breadcrumbs: bool,
608 show_gutter: bool,
609 show_scrollbars: bool,
610 show_line_numbers: Option<bool>,
611 use_relative_line_numbers: Option<bool>,
612 show_git_diff_gutter: Option<bool>,
613 show_code_actions: Option<bool>,
614 show_runnables: Option<bool>,
615 show_wrap_guides: Option<bool>,
616 show_indent_guides: Option<bool>,
617 placeholder_text: Option<Arc<str>>,
618 highlight_order: usize,
619 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
620 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
621 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
622 scrollbar_marker_state: ScrollbarMarkerState,
623 active_indent_guides_state: ActiveIndentGuidesState,
624 nav_history: Option<ItemNavHistory>,
625 context_menu: RefCell<Option<CodeContextMenu>>,
626 mouse_context_menu: Option<MouseContextMenu>,
627 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
628 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
629 signature_help_state: SignatureHelpState,
630 auto_signature_help: Option<bool>,
631 find_all_references_task_sources: Vec<Anchor>,
632 next_completion_id: CompletionId,
633 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
634 code_actions_task: Option<Task<Result<()>>>,
635 document_highlights_task: Option<Task<()>>,
636 linked_editing_range_task: Option<Task<Option<()>>>,
637 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
638 pending_rename: Option<RenameState>,
639 searchable: bool,
640 cursor_shape: CursorShape,
641 current_line_highlight: Option<CurrentLineHighlight>,
642 collapse_matches: bool,
643 autoindent_mode: Option<AutoindentMode>,
644 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
645 input_enabled: bool,
646 use_modal_editing: bool,
647 read_only: bool,
648 leader_peer_id: Option<PeerId>,
649 remote_id: Option<ViewId>,
650 hover_state: HoverState,
651 gutter_hovered: bool,
652 hovered_link_state: Option<HoveredLinkState>,
653 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
654 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
655 active_inline_completion: Option<InlineCompletionState>,
656 // enable_inline_completions is a switch that Vim can use to disable
657 // inline completions based on its mode.
658 enable_inline_completions: bool,
659 show_inline_completions_override: Option<bool>,
660 inlay_hint_cache: InlayHintCache,
661 diff_map: DiffMap,
662 next_inlay_id: usize,
663 _subscriptions: Vec<Subscription>,
664 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
665 gutter_dimensions: GutterDimensions,
666 style: Option<EditorStyle>,
667 text_style_refinement: Option<TextStyleRefinement>,
668 next_editor_action_id: EditorActionId,
669 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
670 use_autoclose: bool,
671 use_auto_surround: bool,
672 auto_replace_emoji_shortcode: bool,
673 show_git_blame_gutter: bool,
674 show_git_blame_inline: bool,
675 show_git_blame_inline_delay_task: Option<Task<()>>,
676 git_blame_inline_enabled: bool,
677 serialize_dirty_buffers: bool,
678 show_selection_menu: Option<bool>,
679 blame: Option<Model<GitBlame>>,
680 blame_subscription: Option<Subscription>,
681 custom_context_menu: Option<
682 Box<
683 dyn 'static
684 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
685 >,
686 >,
687 last_bounds: Option<Bounds<Pixels>>,
688 expect_bounds_change: Option<Bounds<Pixels>>,
689 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
690 tasks_update_task: Option<Task<()>>,
691 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
692 breadcrumb_header: Option<String>,
693 focused_block: Option<FocusedBlock>,
694 next_scroll_position: NextScrollCursorCenterTopBottom,
695 addons: HashMap<TypeId, Box<dyn Addon>>,
696 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
697 toggle_fold_multiple_buffers: Task<()>,
698 _scroll_cursor_center_top_bottom_task: Task<()>,
699}
700
701#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
702enum NextScrollCursorCenterTopBottom {
703 #[default]
704 Center,
705 Top,
706 Bottom,
707}
708
709impl NextScrollCursorCenterTopBottom {
710 fn next(&self) -> Self {
711 match self {
712 Self::Center => Self::Top,
713 Self::Top => Self::Bottom,
714 Self::Bottom => Self::Center,
715 }
716 }
717}
718
719#[derive(Clone)]
720pub struct EditorSnapshot {
721 pub mode: EditorMode,
722 show_gutter: bool,
723 show_line_numbers: Option<bool>,
724 show_git_diff_gutter: Option<bool>,
725 show_code_actions: Option<bool>,
726 show_runnables: Option<bool>,
727 git_blame_gutter_max_author_length: Option<usize>,
728 pub display_snapshot: DisplaySnapshot,
729 pub placeholder_text: Option<Arc<str>>,
730 diff_map: DiffMapSnapshot,
731 is_focused: bool,
732 scroll_anchor: ScrollAnchor,
733 ongoing_scroll: OngoingScroll,
734 current_line_highlight: CurrentLineHighlight,
735 gutter_hovered: bool,
736}
737
738const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
739
740#[derive(Default, Debug, Clone, Copy)]
741pub struct GutterDimensions {
742 pub left_padding: Pixels,
743 pub right_padding: Pixels,
744 pub width: Pixels,
745 pub margin: Pixels,
746 pub git_blame_entries_width: Option<Pixels>,
747}
748
749impl GutterDimensions {
750 /// The full width of the space taken up by the gutter.
751 pub fn full_width(&self) -> Pixels {
752 self.margin + self.width
753 }
754
755 /// The width of the space reserved for the fold indicators,
756 /// use alongside 'justify_end' and `gutter_width` to
757 /// right align content with the line numbers
758 pub fn fold_area_width(&self) -> Pixels {
759 self.margin + self.right_padding
760 }
761}
762
763#[derive(Debug)]
764pub struct RemoteSelection {
765 pub replica_id: ReplicaId,
766 pub selection: Selection<Anchor>,
767 pub cursor_shape: CursorShape,
768 pub peer_id: PeerId,
769 pub line_mode: bool,
770 pub participant_index: Option<ParticipantIndex>,
771 pub user_name: Option<SharedString>,
772}
773
774#[derive(Clone, Debug)]
775struct SelectionHistoryEntry {
776 selections: Arc<[Selection<Anchor>]>,
777 select_next_state: Option<SelectNextState>,
778 select_prev_state: Option<SelectNextState>,
779 add_selections_state: Option<AddSelectionsState>,
780}
781
782enum SelectionHistoryMode {
783 Normal,
784 Undoing,
785 Redoing,
786}
787
788#[derive(Clone, PartialEq, Eq, Hash)]
789struct HoveredCursor {
790 replica_id: u16,
791 selection_id: usize,
792}
793
794impl Default for SelectionHistoryMode {
795 fn default() -> Self {
796 Self::Normal
797 }
798}
799
800#[derive(Default)]
801struct SelectionHistory {
802 #[allow(clippy::type_complexity)]
803 selections_by_transaction:
804 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
805 mode: SelectionHistoryMode,
806 undo_stack: VecDeque<SelectionHistoryEntry>,
807 redo_stack: VecDeque<SelectionHistoryEntry>,
808}
809
810impl SelectionHistory {
811 fn insert_transaction(
812 &mut self,
813 transaction_id: TransactionId,
814 selections: Arc<[Selection<Anchor>]>,
815 ) {
816 self.selections_by_transaction
817 .insert(transaction_id, (selections, None));
818 }
819
820 #[allow(clippy::type_complexity)]
821 fn transaction(
822 &self,
823 transaction_id: TransactionId,
824 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
825 self.selections_by_transaction.get(&transaction_id)
826 }
827
828 #[allow(clippy::type_complexity)]
829 fn transaction_mut(
830 &mut self,
831 transaction_id: TransactionId,
832 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
833 self.selections_by_transaction.get_mut(&transaction_id)
834 }
835
836 fn push(&mut self, entry: SelectionHistoryEntry) {
837 if !entry.selections.is_empty() {
838 match self.mode {
839 SelectionHistoryMode::Normal => {
840 self.push_undo(entry);
841 self.redo_stack.clear();
842 }
843 SelectionHistoryMode::Undoing => self.push_redo(entry),
844 SelectionHistoryMode::Redoing => self.push_undo(entry),
845 }
846 }
847 }
848
849 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
850 if self
851 .undo_stack
852 .back()
853 .map_or(true, |e| e.selections != entry.selections)
854 {
855 self.undo_stack.push_back(entry);
856 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
857 self.undo_stack.pop_front();
858 }
859 }
860 }
861
862 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
863 if self
864 .redo_stack
865 .back()
866 .map_or(true, |e| e.selections != entry.selections)
867 {
868 self.redo_stack.push_back(entry);
869 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
870 self.redo_stack.pop_front();
871 }
872 }
873 }
874}
875
876struct RowHighlight {
877 index: usize,
878 range: Range<Anchor>,
879 color: Hsla,
880 should_autoscroll: bool,
881}
882
883#[derive(Clone, Debug)]
884struct AddSelectionsState {
885 above: bool,
886 stack: Vec<usize>,
887}
888
889#[derive(Clone)]
890struct SelectNextState {
891 query: AhoCorasick,
892 wordwise: bool,
893 done: bool,
894}
895
896impl std::fmt::Debug for SelectNextState {
897 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
898 f.debug_struct(std::any::type_name::<Self>())
899 .field("wordwise", &self.wordwise)
900 .field("done", &self.done)
901 .finish()
902 }
903}
904
905#[derive(Debug)]
906struct AutocloseRegion {
907 selection_id: usize,
908 range: Range<Anchor>,
909 pair: BracketPair,
910}
911
912#[derive(Debug)]
913struct SnippetState {
914 ranges: Vec<Vec<Range<Anchor>>>,
915 active_index: usize,
916 choices: Vec<Option<Vec<String>>>,
917}
918
919#[doc(hidden)]
920pub struct RenameState {
921 pub range: Range<Anchor>,
922 pub old_name: Arc<str>,
923 pub editor: View<Editor>,
924 block_id: CustomBlockId,
925}
926
927struct InvalidationStack<T>(Vec<T>);
928
929struct RegisteredInlineCompletionProvider {
930 provider: Arc<dyn InlineCompletionProviderHandle>,
931 _subscription: Subscription,
932}
933
934#[derive(Debug)]
935struct ActiveDiagnosticGroup {
936 primary_range: Range<Anchor>,
937 primary_message: String,
938 group_id: usize,
939 blocks: HashMap<CustomBlockId, Diagnostic>,
940 is_valid: bool,
941}
942
943#[derive(Serialize, Deserialize, Clone, Debug)]
944pub struct ClipboardSelection {
945 pub len: usize,
946 pub is_entire_line: bool,
947 pub first_line_indent: u32,
948}
949
950#[derive(Debug)]
951pub(crate) struct NavigationData {
952 cursor_anchor: Anchor,
953 cursor_position: Point,
954 scroll_anchor: ScrollAnchor,
955 scroll_top_row: u32,
956}
957
958#[derive(Debug, Clone, Copy, PartialEq, Eq)]
959pub enum GotoDefinitionKind {
960 Symbol,
961 Declaration,
962 Type,
963 Implementation,
964}
965
966#[derive(Debug, Clone)]
967enum InlayHintRefreshReason {
968 Toggle(bool),
969 SettingsChange(InlayHintSettings),
970 NewLinesShown,
971 BufferEdited(HashSet<Arc<Language>>),
972 RefreshRequested,
973 ExcerptsRemoved(Vec<ExcerptId>),
974}
975
976impl InlayHintRefreshReason {
977 fn description(&self) -> &'static str {
978 match self {
979 Self::Toggle(_) => "toggle",
980 Self::SettingsChange(_) => "settings change",
981 Self::NewLinesShown => "new lines shown",
982 Self::BufferEdited(_) => "buffer edited",
983 Self::RefreshRequested => "refresh requested",
984 Self::ExcerptsRemoved(_) => "excerpts removed",
985 }
986 }
987}
988
989pub enum FormatTarget {
990 Buffers,
991 Ranges(Vec<Range<MultiBufferPoint>>),
992}
993
994pub(crate) struct FocusedBlock {
995 id: BlockId,
996 focus_handle: WeakFocusHandle,
997}
998
999#[derive(Clone)]
1000enum JumpData {
1001 MultiBufferRow {
1002 row: MultiBufferRow,
1003 line_offset_from_top: u32,
1004 },
1005 MultiBufferPoint {
1006 excerpt_id: ExcerptId,
1007 position: Point,
1008 anchor: text::Anchor,
1009 line_offset_from_top: u32,
1010 },
1011}
1012
1013impl Editor {
1014 pub fn single_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(
1018 EditorMode::SingleLine { auto_width: false },
1019 buffer,
1020 None,
1021 false,
1022 cx,
1023 )
1024 }
1025
1026 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1027 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1028 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1029 Self::new(EditorMode::Full, buffer, None, false, cx)
1030 }
1031
1032 pub fn auto_width(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::SingleLine { auto_width: true },
1037 buffer,
1038 None,
1039 false,
1040 cx,
1041 )
1042 }
1043
1044 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1045 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1046 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1047 Self::new(
1048 EditorMode::AutoHeight { max_lines },
1049 buffer,
1050 None,
1051 false,
1052 cx,
1053 )
1054 }
1055
1056 pub fn for_buffer(
1057 buffer: Model<Buffer>,
1058 project: Option<Model<Project>>,
1059 cx: &mut ViewContext<Self>,
1060 ) -> Self {
1061 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1062 Self::new(EditorMode::Full, buffer, project, false, cx)
1063 }
1064
1065 pub fn for_multibuffer(
1066 buffer: Model<MultiBuffer>,
1067 project: Option<Model<Project>>,
1068 show_excerpt_controls: bool,
1069 cx: &mut ViewContext<Self>,
1070 ) -> Self {
1071 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1072 }
1073
1074 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1075 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1076 let mut clone = Self::new(
1077 self.mode,
1078 self.buffer.clone(),
1079 self.project.clone(),
1080 show_excerpt_controls,
1081 cx,
1082 );
1083 self.display_map.update(cx, |display_map, cx| {
1084 let snapshot = display_map.snapshot(cx);
1085 clone.display_map.update(cx, |display_map, cx| {
1086 display_map.set_state(&snapshot, cx);
1087 });
1088 });
1089 clone.selections.clone_state(&self.selections);
1090 clone.scroll_manager.clone_state(&self.scroll_manager);
1091 clone.searchable = self.searchable;
1092 clone
1093 }
1094
1095 pub fn new(
1096 mode: EditorMode,
1097 buffer: Model<MultiBuffer>,
1098 project: Option<Model<Project>>,
1099 show_excerpt_controls: bool,
1100 cx: &mut ViewContext<Self>,
1101 ) -> Self {
1102 let style = cx.text_style();
1103 let font_size = style.font_size.to_pixels(cx.rem_size());
1104 let editor = cx.view().downgrade();
1105 let fold_placeholder = FoldPlaceholder {
1106 constrain_width: true,
1107 render: Arc::new(move |fold_id, fold_range, cx| {
1108 let editor = editor.clone();
1109 div()
1110 .id(fold_id)
1111 .bg(cx.theme().colors().ghost_element_background)
1112 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1113 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1114 .rounded_sm()
1115 .size_full()
1116 .cursor_pointer()
1117 .child("⋯")
1118 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1119 .on_click(move |_, cx| {
1120 editor
1121 .update(cx, |editor, cx| {
1122 editor.unfold_ranges(
1123 &[fold_range.start..fold_range.end],
1124 true,
1125 false,
1126 cx,
1127 );
1128 cx.stop_propagation();
1129 })
1130 .ok();
1131 })
1132 .into_any()
1133 }),
1134 merge_adjacent: true,
1135 ..Default::default()
1136 };
1137 let display_map = cx.new_model(|cx| {
1138 DisplayMap::new(
1139 buffer.clone(),
1140 style.font(),
1141 font_size,
1142 None,
1143 show_excerpt_controls,
1144 FILE_HEADER_HEIGHT,
1145 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1146 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1147 fold_placeholder,
1148 cx,
1149 )
1150 });
1151
1152 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1153
1154 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1155
1156 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1157 .then(|| language_settings::SoftWrap::None);
1158
1159 let mut project_subscriptions = Vec::new();
1160 if mode == EditorMode::Full {
1161 if let Some(project) = project.as_ref() {
1162 if buffer.read(cx).is_singleton() {
1163 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1164 cx.emit(EditorEvent::TitleChanged);
1165 }));
1166 }
1167 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1168 if let project::Event::RefreshInlayHints = event {
1169 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1170 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1171 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1172 let focus_handle = editor.focus_handle(cx);
1173 if focus_handle.is_focused(cx) {
1174 let snapshot = buffer.read(cx).snapshot();
1175 for (range, snippet) in snippet_edits {
1176 let editor_range =
1177 language::range_from_lsp(*range).to_offset(&snapshot);
1178 editor
1179 .insert_snippet(&[editor_range], snippet.clone(), cx)
1180 .ok();
1181 }
1182 }
1183 }
1184 }
1185 }));
1186 if let Some(task_inventory) = project
1187 .read(cx)
1188 .task_store()
1189 .read(cx)
1190 .task_inventory()
1191 .cloned()
1192 {
1193 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1194 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1195 }));
1196 }
1197 }
1198 }
1199
1200 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1201
1202 let inlay_hint_settings =
1203 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1204 let focus_handle = cx.focus_handle();
1205 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1206 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1207 .detach();
1208 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1209 .detach();
1210 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1211
1212 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1213 Some(false)
1214 } else {
1215 None
1216 };
1217
1218 let mut code_action_providers = Vec::new();
1219 if let Some(project) = project.clone() {
1220 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1221 code_action_providers.push(Rc::new(project) as Rc<_>);
1222 }
1223
1224 let mut this = Self {
1225 focus_handle,
1226 show_cursor_when_unfocused: false,
1227 last_focused_descendant: None,
1228 buffer: buffer.clone(),
1229 display_map: display_map.clone(),
1230 selections,
1231 scroll_manager: ScrollManager::new(cx),
1232 columnar_selection_tail: None,
1233 add_selections_state: None,
1234 select_next_state: None,
1235 select_prev_state: None,
1236 selection_history: Default::default(),
1237 autoclose_regions: Default::default(),
1238 snippet_stack: Default::default(),
1239 select_larger_syntax_node_stack: Vec::new(),
1240 ime_transaction: Default::default(),
1241 active_diagnostics: None,
1242 soft_wrap_mode_override,
1243 completion_provider: project.clone().map(|project| Box::new(project) as _),
1244 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1245 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1246 project,
1247 blink_manager: blink_manager.clone(),
1248 show_local_selections: true,
1249 show_scrollbars: true,
1250 mode,
1251 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1252 show_gutter: mode == EditorMode::Full,
1253 show_line_numbers: None,
1254 use_relative_line_numbers: None,
1255 show_git_diff_gutter: None,
1256 show_code_actions: None,
1257 show_runnables: None,
1258 show_wrap_guides: None,
1259 show_indent_guides,
1260 placeholder_text: None,
1261 highlight_order: 0,
1262 highlighted_rows: HashMap::default(),
1263 background_highlights: Default::default(),
1264 gutter_highlights: TreeMap::default(),
1265 scrollbar_marker_state: ScrollbarMarkerState::default(),
1266 active_indent_guides_state: ActiveIndentGuidesState::default(),
1267 nav_history: None,
1268 context_menu: RefCell::new(None),
1269 mouse_context_menu: None,
1270 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1271 completion_tasks: Default::default(),
1272 signature_help_state: SignatureHelpState::default(),
1273 auto_signature_help: None,
1274 find_all_references_task_sources: Vec::new(),
1275 next_completion_id: 0,
1276 next_inlay_id: 0,
1277 code_action_providers,
1278 available_code_actions: Default::default(),
1279 code_actions_task: Default::default(),
1280 document_highlights_task: Default::default(),
1281 linked_editing_range_task: Default::default(),
1282 pending_rename: Default::default(),
1283 searchable: true,
1284 cursor_shape: EditorSettings::get_global(cx)
1285 .cursor_shape
1286 .unwrap_or_default(),
1287 current_line_highlight: None,
1288 autoindent_mode: Some(AutoindentMode::EachLine),
1289 collapse_matches: false,
1290 workspace: None,
1291 input_enabled: true,
1292 use_modal_editing: mode == EditorMode::Full,
1293 read_only: false,
1294 use_autoclose: true,
1295 use_auto_surround: true,
1296 auto_replace_emoji_shortcode: false,
1297 leader_peer_id: None,
1298 remote_id: None,
1299 hover_state: Default::default(),
1300 hovered_link_state: Default::default(),
1301 inline_completion_provider: None,
1302 active_inline_completion: None,
1303 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1304 diff_map: DiffMap::default(),
1305 gutter_hovered: false,
1306 pixel_position_of_newest_cursor: None,
1307 last_bounds: None,
1308 expect_bounds_change: None,
1309 gutter_dimensions: GutterDimensions::default(),
1310 style: None,
1311 show_cursor_names: false,
1312 hovered_cursors: Default::default(),
1313 next_editor_action_id: EditorActionId::default(),
1314 editor_actions: Rc::default(),
1315 show_inline_completions_override: None,
1316 enable_inline_completions: true,
1317 custom_context_menu: None,
1318 show_git_blame_gutter: false,
1319 show_git_blame_inline: false,
1320 show_selection_menu: None,
1321 show_git_blame_inline_delay_task: None,
1322 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1323 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1324 .session
1325 .restore_unsaved_buffers,
1326 blame: None,
1327 blame_subscription: None,
1328 tasks: Default::default(),
1329 _subscriptions: vec![
1330 cx.observe(&buffer, Self::on_buffer_changed),
1331 cx.subscribe(&buffer, Self::on_buffer_event),
1332 cx.observe(&display_map, Self::on_display_map_changed),
1333 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1334 cx.observe_global::<SettingsStore>(Self::settings_changed),
1335 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1336 cx.observe_window_activation(|editor, cx| {
1337 let active = cx.is_window_active();
1338 editor.blink_manager.update(cx, |blink_manager, cx| {
1339 if active {
1340 blink_manager.enable(cx);
1341 } else {
1342 blink_manager.disable(cx);
1343 }
1344 });
1345 }),
1346 ],
1347 tasks_update_task: None,
1348 linked_edit_ranges: Default::default(),
1349 previous_search_ranges: None,
1350 breadcrumb_header: None,
1351 focused_block: None,
1352 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1353 addons: HashMap::default(),
1354 registered_buffers: HashMap::default(),
1355 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1356 toggle_fold_multiple_buffers: Task::ready(()),
1357 text_style_refinement: None,
1358 };
1359 this.tasks_update_task = Some(this.refresh_runnables(cx));
1360 this._subscriptions.extend(project_subscriptions);
1361
1362 this.end_selection(cx);
1363 this.scroll_manager.show_scrollbar(cx);
1364
1365 if mode == EditorMode::Full {
1366 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1367 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1368
1369 if this.git_blame_inline_enabled {
1370 this.git_blame_inline_enabled = true;
1371 this.start_git_blame_inline(false, cx);
1372 }
1373
1374 if let Some(buffer) = buffer.read(cx).as_singleton() {
1375 if let Some(project) = this.project.as_ref() {
1376 let lsp_store = project.read(cx).lsp_store();
1377 let handle = lsp_store.update(cx, |lsp_store, cx| {
1378 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1379 });
1380 this.registered_buffers
1381 .insert(buffer.read(cx).remote_id(), handle);
1382 }
1383 }
1384 }
1385
1386 this.report_editor_event("Editor Opened", None, cx);
1387 this
1388 }
1389
1390 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1391 self.mouse_context_menu
1392 .as_ref()
1393 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1394 }
1395
1396 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1397 let mut key_context = KeyContext::new_with_defaults();
1398 key_context.add("Editor");
1399 let mode = match self.mode {
1400 EditorMode::SingleLine { .. } => "single_line",
1401 EditorMode::AutoHeight { .. } => "auto_height",
1402 EditorMode::Full => "full",
1403 };
1404
1405 if EditorSettings::jupyter_enabled(cx) {
1406 key_context.add("jupyter");
1407 }
1408
1409 key_context.set("mode", mode);
1410 if self.pending_rename.is_some() {
1411 key_context.add("renaming");
1412 }
1413 match self.context_menu.borrow().as_ref() {
1414 Some(CodeContextMenu::Completions(_)) => {
1415 key_context.add("menu");
1416 key_context.add("showing_completions")
1417 }
1418 Some(CodeContextMenu::CodeActions(_)) => {
1419 key_context.add("menu");
1420 key_context.add("showing_code_actions")
1421 }
1422 None => {}
1423 }
1424
1425 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1426 if !self.focus_handle(cx).contains_focused(cx)
1427 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1428 {
1429 for addon in self.addons.values() {
1430 addon.extend_key_context(&mut key_context, cx)
1431 }
1432 }
1433
1434 if let Some(extension) = self
1435 .buffer
1436 .read(cx)
1437 .as_singleton()
1438 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1439 {
1440 key_context.set("extension", extension.to_string());
1441 }
1442
1443 if self.has_active_inline_completion() {
1444 key_context.add("copilot_suggestion");
1445 key_context.add("inline_completion");
1446 }
1447
1448 if !self
1449 .selections
1450 .disjoint
1451 .iter()
1452 .all(|selection| selection.start == selection.end)
1453 {
1454 key_context.add("selection");
1455 }
1456
1457 key_context
1458 }
1459
1460 pub fn new_file(
1461 workspace: &mut Workspace,
1462 _: &workspace::NewFile,
1463 cx: &mut ViewContext<Workspace>,
1464 ) {
1465 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1466 "Failed to create buffer",
1467 cx,
1468 |e, _| match e.error_code() {
1469 ErrorCode::RemoteUpgradeRequired => Some(format!(
1470 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1471 e.error_tag("required").unwrap_or("the latest version")
1472 )),
1473 _ => None,
1474 },
1475 );
1476 }
1477
1478 pub fn new_in_workspace(
1479 workspace: &mut Workspace,
1480 cx: &mut ViewContext<Workspace>,
1481 ) -> Task<Result<View<Editor>>> {
1482 let project = workspace.project().clone();
1483 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1484
1485 cx.spawn(|workspace, mut cx| async move {
1486 let buffer = create.await?;
1487 workspace.update(&mut cx, |workspace, cx| {
1488 let editor =
1489 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1490 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1491 editor
1492 })
1493 })
1494 }
1495
1496 fn new_file_vertical(
1497 workspace: &mut Workspace,
1498 _: &workspace::NewFileSplitVertical,
1499 cx: &mut ViewContext<Workspace>,
1500 ) {
1501 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1502 }
1503
1504 fn new_file_horizontal(
1505 workspace: &mut Workspace,
1506 _: &workspace::NewFileSplitHorizontal,
1507 cx: &mut ViewContext<Workspace>,
1508 ) {
1509 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1510 }
1511
1512 fn new_file_in_direction(
1513 workspace: &mut Workspace,
1514 direction: SplitDirection,
1515 cx: &mut ViewContext<Workspace>,
1516 ) {
1517 let project = workspace.project().clone();
1518 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1519
1520 cx.spawn(|workspace, mut cx| async move {
1521 let buffer = create.await?;
1522 workspace.update(&mut cx, move |workspace, cx| {
1523 workspace.split_item(
1524 direction,
1525 Box::new(
1526 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1527 ),
1528 cx,
1529 )
1530 })?;
1531 anyhow::Ok(())
1532 })
1533 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1534 ErrorCode::RemoteUpgradeRequired => Some(format!(
1535 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1536 e.error_tag("required").unwrap_or("the latest version")
1537 )),
1538 _ => None,
1539 });
1540 }
1541
1542 pub fn leader_peer_id(&self) -> Option<PeerId> {
1543 self.leader_peer_id
1544 }
1545
1546 pub fn buffer(&self) -> &Model<MultiBuffer> {
1547 &self.buffer
1548 }
1549
1550 pub fn workspace(&self) -> Option<View<Workspace>> {
1551 self.workspace.as_ref()?.0.upgrade()
1552 }
1553
1554 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1555 self.buffer().read(cx).title(cx)
1556 }
1557
1558 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1559 let git_blame_gutter_max_author_length = self
1560 .render_git_blame_gutter(cx)
1561 .then(|| {
1562 if let Some(blame) = self.blame.as_ref() {
1563 let max_author_length =
1564 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1565 Some(max_author_length)
1566 } else {
1567 None
1568 }
1569 })
1570 .flatten();
1571
1572 EditorSnapshot {
1573 mode: self.mode,
1574 show_gutter: self.show_gutter,
1575 show_line_numbers: self.show_line_numbers,
1576 show_git_diff_gutter: self.show_git_diff_gutter,
1577 show_code_actions: self.show_code_actions,
1578 show_runnables: self.show_runnables,
1579 git_blame_gutter_max_author_length,
1580 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1581 scroll_anchor: self.scroll_manager.anchor(),
1582 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1583 placeholder_text: self.placeholder_text.clone(),
1584 diff_map: self.diff_map.snapshot(),
1585 is_focused: self.focus_handle.is_focused(cx),
1586 current_line_highlight: self
1587 .current_line_highlight
1588 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1589 gutter_hovered: self.gutter_hovered,
1590 }
1591 }
1592
1593 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1594 self.buffer.read(cx).language_at(point, cx)
1595 }
1596
1597 pub fn file_at<T: ToOffset>(
1598 &self,
1599 point: T,
1600 cx: &AppContext,
1601 ) -> Option<Arc<dyn language::File>> {
1602 self.buffer.read(cx).read(cx).file_at(point).cloned()
1603 }
1604
1605 pub fn active_excerpt(
1606 &self,
1607 cx: &AppContext,
1608 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1609 self.buffer
1610 .read(cx)
1611 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1612 }
1613
1614 pub fn mode(&self) -> EditorMode {
1615 self.mode
1616 }
1617
1618 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1619 self.collaboration_hub.as_deref()
1620 }
1621
1622 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1623 self.collaboration_hub = Some(hub);
1624 }
1625
1626 pub fn set_custom_context_menu(
1627 &mut self,
1628 f: impl 'static
1629 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1630 ) {
1631 self.custom_context_menu = Some(Box::new(f))
1632 }
1633
1634 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1635 self.completion_provider = provider;
1636 }
1637
1638 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1639 self.semantics_provider.clone()
1640 }
1641
1642 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1643 self.semantics_provider = provider;
1644 }
1645
1646 pub fn set_inline_completion_provider<T>(
1647 &mut self,
1648 provider: Option<Model<T>>,
1649 cx: &mut ViewContext<Self>,
1650 ) where
1651 T: InlineCompletionProvider,
1652 {
1653 self.inline_completion_provider =
1654 provider.map(|provider| RegisteredInlineCompletionProvider {
1655 _subscription: cx.observe(&provider, |this, _, cx| {
1656 if this.focus_handle.is_focused(cx) {
1657 this.update_visible_inline_completion(cx);
1658 }
1659 }),
1660 provider: Arc::new(provider),
1661 });
1662 self.refresh_inline_completion(false, false, cx);
1663 }
1664
1665 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1666 self.placeholder_text.as_deref()
1667 }
1668
1669 pub fn set_placeholder_text(
1670 &mut self,
1671 placeholder_text: impl Into<Arc<str>>,
1672 cx: &mut ViewContext<Self>,
1673 ) {
1674 let placeholder_text = Some(placeholder_text.into());
1675 if self.placeholder_text != placeholder_text {
1676 self.placeholder_text = placeholder_text;
1677 cx.notify();
1678 }
1679 }
1680
1681 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1682 self.cursor_shape = cursor_shape;
1683
1684 // Disrupt blink for immediate user feedback that the cursor shape has changed
1685 self.blink_manager.update(cx, BlinkManager::show_cursor);
1686
1687 cx.notify();
1688 }
1689
1690 pub fn set_current_line_highlight(
1691 &mut self,
1692 current_line_highlight: Option<CurrentLineHighlight>,
1693 ) {
1694 self.current_line_highlight = current_line_highlight;
1695 }
1696
1697 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1698 self.collapse_matches = collapse_matches;
1699 }
1700
1701 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1702 let buffers = self.buffer.read(cx).all_buffers();
1703 let Some(lsp_store) = self.lsp_store(cx) else {
1704 return;
1705 };
1706 lsp_store.update(cx, |lsp_store, cx| {
1707 for buffer in buffers {
1708 self.registered_buffers
1709 .entry(buffer.read(cx).remote_id())
1710 .or_insert_with(|| {
1711 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1712 });
1713 }
1714 })
1715 }
1716
1717 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1718 if self.collapse_matches {
1719 return range.start..range.start;
1720 }
1721 range.clone()
1722 }
1723
1724 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1725 if self.display_map.read(cx).clip_at_line_ends != clip {
1726 self.display_map
1727 .update(cx, |map, _| map.clip_at_line_ends = clip);
1728 }
1729 }
1730
1731 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1732 self.input_enabled = input_enabled;
1733 }
1734
1735 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1736 self.enable_inline_completions = enabled;
1737 }
1738
1739 pub fn set_autoindent(&mut self, autoindent: bool) {
1740 if autoindent {
1741 self.autoindent_mode = Some(AutoindentMode::EachLine);
1742 } else {
1743 self.autoindent_mode = None;
1744 }
1745 }
1746
1747 pub fn read_only(&self, cx: &AppContext) -> bool {
1748 self.read_only || self.buffer.read(cx).read_only()
1749 }
1750
1751 pub fn set_read_only(&mut self, read_only: bool) {
1752 self.read_only = read_only;
1753 }
1754
1755 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1756 self.use_autoclose = autoclose;
1757 }
1758
1759 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1760 self.use_auto_surround = auto_surround;
1761 }
1762
1763 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1764 self.auto_replace_emoji_shortcode = auto_replace;
1765 }
1766
1767 pub fn toggle_inline_completions(
1768 &mut self,
1769 _: &ToggleInlineCompletions,
1770 cx: &mut ViewContext<Self>,
1771 ) {
1772 if self.show_inline_completions_override.is_some() {
1773 self.set_show_inline_completions(None, cx);
1774 } else {
1775 let cursor = self.selections.newest_anchor().head();
1776 if let Some((buffer, cursor_buffer_position)) =
1777 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1778 {
1779 let show_inline_completions =
1780 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1781 self.set_show_inline_completions(Some(show_inline_completions), cx);
1782 }
1783 }
1784 }
1785
1786 pub fn set_show_inline_completions(
1787 &mut self,
1788 show_inline_completions: Option<bool>,
1789 cx: &mut ViewContext<Self>,
1790 ) {
1791 self.show_inline_completions_override = show_inline_completions;
1792 self.refresh_inline_completion(false, true, cx);
1793 }
1794
1795 pub fn inline_completions_enabled(&self, cx: &AppContext) -> bool {
1796 let cursor = self.selections.newest_anchor().head();
1797 if let Some((buffer, buffer_position)) =
1798 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1799 {
1800 self.should_show_inline_completions(&buffer, buffer_position, cx)
1801 } else {
1802 false
1803 }
1804 }
1805
1806 fn should_show_inline_completions(
1807 &self,
1808 buffer: &Model<Buffer>,
1809 buffer_position: language::Anchor,
1810 cx: &AppContext,
1811 ) -> bool {
1812 if !self.snippet_stack.is_empty() {
1813 return false;
1814 }
1815
1816 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1817 return false;
1818 }
1819
1820 if let Some(provider) = self.inline_completion_provider() {
1821 if let Some(show_inline_completions) = self.show_inline_completions_override {
1822 show_inline_completions
1823 } else {
1824 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1825 }
1826 } else {
1827 false
1828 }
1829 }
1830
1831 fn inline_completions_disabled_in_scope(
1832 &self,
1833 buffer: &Model<Buffer>,
1834 buffer_position: language::Anchor,
1835 cx: &AppContext,
1836 ) -> bool {
1837 let snapshot = buffer.read(cx).snapshot();
1838 let settings = snapshot.settings_at(buffer_position, cx);
1839
1840 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1841 return false;
1842 };
1843
1844 scope.override_name().map_or(false, |scope_name| {
1845 settings
1846 .inline_completions_disabled_in
1847 .iter()
1848 .any(|s| s == scope_name)
1849 })
1850 }
1851
1852 pub fn set_use_modal_editing(&mut self, to: bool) {
1853 self.use_modal_editing = to;
1854 }
1855
1856 pub fn use_modal_editing(&self) -> bool {
1857 self.use_modal_editing
1858 }
1859
1860 fn selections_did_change(
1861 &mut self,
1862 local: bool,
1863 old_cursor_position: &Anchor,
1864 show_completions: bool,
1865 cx: &mut ViewContext<Self>,
1866 ) {
1867 cx.invalidate_character_coordinates();
1868
1869 // Copy selections to primary selection buffer
1870 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1871 if local {
1872 let selections = self.selections.all::<usize>(cx);
1873 let buffer_handle = self.buffer.read(cx).read(cx);
1874
1875 let mut text = String::new();
1876 for (index, selection) in selections.iter().enumerate() {
1877 let text_for_selection = buffer_handle
1878 .text_for_range(selection.start..selection.end)
1879 .collect::<String>();
1880
1881 text.push_str(&text_for_selection);
1882 if index != selections.len() - 1 {
1883 text.push('\n');
1884 }
1885 }
1886
1887 if !text.is_empty() {
1888 cx.write_to_primary(ClipboardItem::new_string(text));
1889 }
1890 }
1891
1892 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1893 self.buffer.update(cx, |buffer, cx| {
1894 buffer.set_active_selections(
1895 &self.selections.disjoint_anchors(),
1896 self.selections.line_mode,
1897 self.cursor_shape,
1898 cx,
1899 )
1900 });
1901 }
1902 let display_map = self
1903 .display_map
1904 .update(cx, |display_map, cx| display_map.snapshot(cx));
1905 let buffer = &display_map.buffer_snapshot;
1906 self.add_selections_state = None;
1907 self.select_next_state = None;
1908 self.select_prev_state = None;
1909 self.select_larger_syntax_node_stack.clear();
1910 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1911 self.snippet_stack
1912 .invalidate(&self.selections.disjoint_anchors(), buffer);
1913 self.take_rename(false, cx);
1914
1915 let new_cursor_position = self.selections.newest_anchor().head();
1916
1917 self.push_to_nav_history(
1918 *old_cursor_position,
1919 Some(new_cursor_position.to_point(buffer)),
1920 cx,
1921 );
1922
1923 if local {
1924 let new_cursor_position = self.selections.newest_anchor().head();
1925 let mut context_menu = self.context_menu.borrow_mut();
1926 let completion_menu = match context_menu.as_ref() {
1927 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1928 _ => {
1929 *context_menu = None;
1930 None
1931 }
1932 };
1933
1934 if let Some(completion_menu) = completion_menu {
1935 let cursor_position = new_cursor_position.to_offset(buffer);
1936 let (word_range, kind) =
1937 buffer.surrounding_word(completion_menu.initial_position, true);
1938 if kind == Some(CharKind::Word)
1939 && word_range.to_inclusive().contains(&cursor_position)
1940 {
1941 let mut completion_menu = completion_menu.clone();
1942 drop(context_menu);
1943
1944 let query = Self::completion_query(buffer, cursor_position);
1945 cx.spawn(move |this, mut cx| async move {
1946 completion_menu
1947 .filter(query.as_deref(), cx.background_executor().clone())
1948 .await;
1949
1950 this.update(&mut cx, |this, cx| {
1951 let mut context_menu = this.context_menu.borrow_mut();
1952 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1953 else {
1954 return;
1955 };
1956
1957 if menu.id > completion_menu.id {
1958 return;
1959 }
1960
1961 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1962 drop(context_menu);
1963 cx.notify();
1964 })
1965 })
1966 .detach();
1967
1968 if show_completions {
1969 self.show_completions(&ShowCompletions { trigger: None }, cx);
1970 }
1971 } else {
1972 drop(context_menu);
1973 self.hide_context_menu(cx);
1974 }
1975 } else {
1976 drop(context_menu);
1977 }
1978
1979 hide_hover(self, cx);
1980
1981 if old_cursor_position.to_display_point(&display_map).row()
1982 != new_cursor_position.to_display_point(&display_map).row()
1983 {
1984 self.available_code_actions.take();
1985 }
1986 self.refresh_code_actions(cx);
1987 self.refresh_document_highlights(cx);
1988 refresh_matching_bracket_highlights(self, cx);
1989 self.update_visible_inline_completion(cx);
1990 linked_editing_ranges::refresh_linked_ranges(self, cx);
1991 if self.git_blame_inline_enabled {
1992 self.start_inline_blame_timer(cx);
1993 }
1994 }
1995
1996 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1997 cx.emit(EditorEvent::SelectionsChanged { local });
1998
1999 if self.selections.disjoint_anchors().len() == 1 {
2000 cx.emit(SearchEvent::ActiveMatchChanged)
2001 }
2002 cx.notify();
2003 }
2004
2005 pub fn change_selections<R>(
2006 &mut self,
2007 autoscroll: Option<Autoscroll>,
2008 cx: &mut ViewContext<Self>,
2009 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2010 ) -> R {
2011 self.change_selections_inner(autoscroll, true, cx, change)
2012 }
2013
2014 pub fn change_selections_inner<R>(
2015 &mut self,
2016 autoscroll: Option<Autoscroll>,
2017 request_completions: bool,
2018 cx: &mut ViewContext<Self>,
2019 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2020 ) -> R {
2021 let old_cursor_position = self.selections.newest_anchor().head();
2022 self.push_to_selection_history();
2023
2024 let (changed, result) = self.selections.change_with(cx, change);
2025
2026 if changed {
2027 if let Some(autoscroll) = autoscroll {
2028 self.request_autoscroll(autoscroll, cx);
2029 }
2030 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2031
2032 if self.should_open_signature_help_automatically(
2033 &old_cursor_position,
2034 self.signature_help_state.backspace_pressed(),
2035 cx,
2036 ) {
2037 self.show_signature_help(&ShowSignatureHelp, cx);
2038 }
2039 self.signature_help_state.set_backspace_pressed(false);
2040 }
2041
2042 result
2043 }
2044
2045 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2046 where
2047 I: IntoIterator<Item = (Range<S>, T)>,
2048 S: ToOffset,
2049 T: Into<Arc<str>>,
2050 {
2051 if self.read_only(cx) {
2052 return;
2053 }
2054
2055 self.buffer
2056 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2057 }
2058
2059 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2060 where
2061 I: IntoIterator<Item = (Range<S>, T)>,
2062 S: ToOffset,
2063 T: Into<Arc<str>>,
2064 {
2065 if self.read_only(cx) {
2066 return;
2067 }
2068
2069 self.buffer.update(cx, |buffer, cx| {
2070 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2071 });
2072 }
2073
2074 pub fn edit_with_block_indent<I, S, T>(
2075 &mut self,
2076 edits: I,
2077 original_indent_columns: Vec<u32>,
2078 cx: &mut ViewContext<Self>,
2079 ) where
2080 I: IntoIterator<Item = (Range<S>, T)>,
2081 S: ToOffset,
2082 T: Into<Arc<str>>,
2083 {
2084 if self.read_only(cx) {
2085 return;
2086 }
2087
2088 self.buffer.update(cx, |buffer, cx| {
2089 buffer.edit(
2090 edits,
2091 Some(AutoindentMode::Block {
2092 original_indent_columns,
2093 }),
2094 cx,
2095 )
2096 });
2097 }
2098
2099 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2100 self.hide_context_menu(cx);
2101
2102 match phase {
2103 SelectPhase::Begin {
2104 position,
2105 add,
2106 click_count,
2107 } => self.begin_selection(position, add, click_count, cx),
2108 SelectPhase::BeginColumnar {
2109 position,
2110 goal_column,
2111 reset,
2112 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2113 SelectPhase::Extend {
2114 position,
2115 click_count,
2116 } => self.extend_selection(position, click_count, cx),
2117 SelectPhase::Update {
2118 position,
2119 goal_column,
2120 scroll_delta,
2121 } => self.update_selection(position, goal_column, scroll_delta, cx),
2122 SelectPhase::End => self.end_selection(cx),
2123 }
2124 }
2125
2126 fn extend_selection(
2127 &mut self,
2128 position: DisplayPoint,
2129 click_count: usize,
2130 cx: &mut ViewContext<Self>,
2131 ) {
2132 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2133 let tail = self.selections.newest::<usize>(cx).tail();
2134 self.begin_selection(position, false, click_count, cx);
2135
2136 let position = position.to_offset(&display_map, Bias::Left);
2137 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2138
2139 let mut pending_selection = self
2140 .selections
2141 .pending_anchor()
2142 .expect("extend_selection not called with pending selection");
2143 if position >= tail {
2144 pending_selection.start = tail_anchor;
2145 } else {
2146 pending_selection.end = tail_anchor;
2147 pending_selection.reversed = true;
2148 }
2149
2150 let mut pending_mode = self.selections.pending_mode().unwrap();
2151 match &mut pending_mode {
2152 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2153 _ => {}
2154 }
2155
2156 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2157 s.set_pending(pending_selection, pending_mode)
2158 });
2159 }
2160
2161 fn begin_selection(
2162 &mut self,
2163 position: DisplayPoint,
2164 add: bool,
2165 click_count: usize,
2166 cx: &mut ViewContext<Self>,
2167 ) {
2168 if !self.focus_handle.is_focused(cx) {
2169 self.last_focused_descendant = None;
2170 cx.focus(&self.focus_handle);
2171 }
2172
2173 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2174 let buffer = &display_map.buffer_snapshot;
2175 let newest_selection = self.selections.newest_anchor().clone();
2176 let position = display_map.clip_point(position, Bias::Left);
2177
2178 let start;
2179 let end;
2180 let mode;
2181 let mut auto_scroll;
2182 match click_count {
2183 1 => {
2184 start = buffer.anchor_before(position.to_point(&display_map));
2185 end = start;
2186 mode = SelectMode::Character;
2187 auto_scroll = true;
2188 }
2189 2 => {
2190 let range = movement::surrounding_word(&display_map, position);
2191 start = buffer.anchor_before(range.start.to_point(&display_map));
2192 end = buffer.anchor_before(range.end.to_point(&display_map));
2193 mode = SelectMode::Word(start..end);
2194 auto_scroll = true;
2195 }
2196 3 => {
2197 let position = display_map
2198 .clip_point(position, Bias::Left)
2199 .to_point(&display_map);
2200 let line_start = display_map.prev_line_boundary(position).0;
2201 let next_line_start = buffer.clip_point(
2202 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2203 Bias::Left,
2204 );
2205 start = buffer.anchor_before(line_start);
2206 end = buffer.anchor_before(next_line_start);
2207 mode = SelectMode::Line(start..end);
2208 auto_scroll = true;
2209 }
2210 _ => {
2211 start = buffer.anchor_before(0);
2212 end = buffer.anchor_before(buffer.len());
2213 mode = SelectMode::All;
2214 auto_scroll = false;
2215 }
2216 }
2217 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2218
2219 let point_to_delete: Option<usize> = {
2220 let selected_points: Vec<Selection<Point>> =
2221 self.selections.disjoint_in_range(start..end, cx);
2222
2223 if !add || click_count > 1 {
2224 None
2225 } else if !selected_points.is_empty() {
2226 Some(selected_points[0].id)
2227 } else {
2228 let clicked_point_already_selected =
2229 self.selections.disjoint.iter().find(|selection| {
2230 selection.start.to_point(buffer) == start.to_point(buffer)
2231 || selection.end.to_point(buffer) == end.to_point(buffer)
2232 });
2233
2234 clicked_point_already_selected.map(|selection| selection.id)
2235 }
2236 };
2237
2238 let selections_count = self.selections.count();
2239
2240 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2241 if let Some(point_to_delete) = point_to_delete {
2242 s.delete(point_to_delete);
2243
2244 if selections_count == 1 {
2245 s.set_pending_anchor_range(start..end, mode);
2246 }
2247 } else {
2248 if !add {
2249 s.clear_disjoint();
2250 } else if click_count > 1 {
2251 s.delete(newest_selection.id)
2252 }
2253
2254 s.set_pending_anchor_range(start..end, mode);
2255 }
2256 });
2257 }
2258
2259 fn begin_columnar_selection(
2260 &mut self,
2261 position: DisplayPoint,
2262 goal_column: u32,
2263 reset: bool,
2264 cx: &mut ViewContext<Self>,
2265 ) {
2266 if !self.focus_handle.is_focused(cx) {
2267 self.last_focused_descendant = None;
2268 cx.focus(&self.focus_handle);
2269 }
2270
2271 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2272
2273 if reset {
2274 let pointer_position = display_map
2275 .buffer_snapshot
2276 .anchor_before(position.to_point(&display_map));
2277
2278 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2279 s.clear_disjoint();
2280 s.set_pending_anchor_range(
2281 pointer_position..pointer_position,
2282 SelectMode::Character,
2283 );
2284 });
2285 }
2286
2287 let tail = self.selections.newest::<Point>(cx).tail();
2288 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2289
2290 if !reset {
2291 self.select_columns(
2292 tail.to_display_point(&display_map),
2293 position,
2294 goal_column,
2295 &display_map,
2296 cx,
2297 );
2298 }
2299 }
2300
2301 fn update_selection(
2302 &mut self,
2303 position: DisplayPoint,
2304 goal_column: u32,
2305 scroll_delta: gpui::Point<f32>,
2306 cx: &mut ViewContext<Self>,
2307 ) {
2308 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2309
2310 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2311 let tail = tail.to_display_point(&display_map);
2312 self.select_columns(tail, position, goal_column, &display_map, cx);
2313 } else if let Some(mut pending) = self.selections.pending_anchor() {
2314 let buffer = self.buffer.read(cx).snapshot(cx);
2315 let head;
2316 let tail;
2317 let mode = self.selections.pending_mode().unwrap();
2318 match &mode {
2319 SelectMode::Character => {
2320 head = position.to_point(&display_map);
2321 tail = pending.tail().to_point(&buffer);
2322 }
2323 SelectMode::Word(original_range) => {
2324 let original_display_range = original_range.start.to_display_point(&display_map)
2325 ..original_range.end.to_display_point(&display_map);
2326 let original_buffer_range = original_display_range.start.to_point(&display_map)
2327 ..original_display_range.end.to_point(&display_map);
2328 if movement::is_inside_word(&display_map, position)
2329 || original_display_range.contains(&position)
2330 {
2331 let word_range = movement::surrounding_word(&display_map, position);
2332 if word_range.start < original_display_range.start {
2333 head = word_range.start.to_point(&display_map);
2334 } else {
2335 head = word_range.end.to_point(&display_map);
2336 }
2337 } else {
2338 head = position.to_point(&display_map);
2339 }
2340
2341 if head <= original_buffer_range.start {
2342 tail = original_buffer_range.end;
2343 } else {
2344 tail = original_buffer_range.start;
2345 }
2346 }
2347 SelectMode::Line(original_range) => {
2348 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2349
2350 let position = display_map
2351 .clip_point(position, Bias::Left)
2352 .to_point(&display_map);
2353 let line_start = display_map.prev_line_boundary(position).0;
2354 let next_line_start = buffer.clip_point(
2355 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2356 Bias::Left,
2357 );
2358
2359 if line_start < original_range.start {
2360 head = line_start
2361 } else {
2362 head = next_line_start
2363 }
2364
2365 if head <= original_range.start {
2366 tail = original_range.end;
2367 } else {
2368 tail = original_range.start;
2369 }
2370 }
2371 SelectMode::All => {
2372 return;
2373 }
2374 };
2375
2376 if head < tail {
2377 pending.start = buffer.anchor_before(head);
2378 pending.end = buffer.anchor_before(tail);
2379 pending.reversed = true;
2380 } else {
2381 pending.start = buffer.anchor_before(tail);
2382 pending.end = buffer.anchor_before(head);
2383 pending.reversed = false;
2384 }
2385
2386 self.change_selections(None, cx, |s| {
2387 s.set_pending(pending, mode);
2388 });
2389 } else {
2390 log::error!("update_selection dispatched with no pending selection");
2391 return;
2392 }
2393
2394 self.apply_scroll_delta(scroll_delta, cx);
2395 cx.notify();
2396 }
2397
2398 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2399 self.columnar_selection_tail.take();
2400 if self.selections.pending_anchor().is_some() {
2401 let selections = self.selections.all::<usize>(cx);
2402 self.change_selections(None, cx, |s| {
2403 s.select(selections);
2404 s.clear_pending();
2405 });
2406 }
2407 }
2408
2409 fn select_columns(
2410 &mut self,
2411 tail: DisplayPoint,
2412 head: DisplayPoint,
2413 goal_column: u32,
2414 display_map: &DisplaySnapshot,
2415 cx: &mut ViewContext<Self>,
2416 ) {
2417 let start_row = cmp::min(tail.row(), head.row());
2418 let end_row = cmp::max(tail.row(), head.row());
2419 let start_column = cmp::min(tail.column(), goal_column);
2420 let end_column = cmp::max(tail.column(), goal_column);
2421 let reversed = start_column < tail.column();
2422
2423 let selection_ranges = (start_row.0..=end_row.0)
2424 .map(DisplayRow)
2425 .filter_map(|row| {
2426 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2427 let start = display_map
2428 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2429 .to_point(display_map);
2430 let end = display_map
2431 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2432 .to_point(display_map);
2433 if reversed {
2434 Some(end..start)
2435 } else {
2436 Some(start..end)
2437 }
2438 } else {
2439 None
2440 }
2441 })
2442 .collect::<Vec<_>>();
2443
2444 self.change_selections(None, cx, |s| {
2445 s.select_ranges(selection_ranges);
2446 });
2447 cx.notify();
2448 }
2449
2450 pub fn has_pending_nonempty_selection(&self) -> bool {
2451 let pending_nonempty_selection = match self.selections.pending_anchor() {
2452 Some(Selection { start, end, .. }) => start != end,
2453 None => false,
2454 };
2455
2456 pending_nonempty_selection
2457 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2458 }
2459
2460 pub fn has_pending_selection(&self) -> bool {
2461 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2462 }
2463
2464 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2465 if self.clear_expanded_diff_hunks(cx) {
2466 cx.notify();
2467 return;
2468 }
2469 if self.dismiss_menus_and_popups(true, cx) {
2470 return;
2471 }
2472
2473 if self.mode == EditorMode::Full
2474 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2475 {
2476 return;
2477 }
2478
2479 cx.propagate();
2480 }
2481
2482 pub fn dismiss_menus_and_popups(
2483 &mut self,
2484 should_report_inline_completion_event: bool,
2485 cx: &mut ViewContext<Self>,
2486 ) -> bool {
2487 if self.take_rename(false, cx).is_some() {
2488 return true;
2489 }
2490
2491 if hide_hover(self, cx) {
2492 return true;
2493 }
2494
2495 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2496 return true;
2497 }
2498
2499 if self.hide_context_menu(cx).is_some() {
2500 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2501 self.update_visible_inline_completion(cx);
2502 }
2503 return true;
2504 }
2505
2506 if self.mouse_context_menu.take().is_some() {
2507 return true;
2508 }
2509
2510 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2511 return true;
2512 }
2513
2514 if self.snippet_stack.pop().is_some() {
2515 return true;
2516 }
2517
2518 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2519 self.dismiss_diagnostics(cx);
2520 return true;
2521 }
2522
2523 false
2524 }
2525
2526 fn linked_editing_ranges_for(
2527 &self,
2528 selection: Range<text::Anchor>,
2529 cx: &AppContext,
2530 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2531 if self.linked_edit_ranges.is_empty() {
2532 return None;
2533 }
2534 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2535 selection.end.buffer_id.and_then(|end_buffer_id| {
2536 if selection.start.buffer_id != Some(end_buffer_id) {
2537 return None;
2538 }
2539 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2540 let snapshot = buffer.read(cx).snapshot();
2541 self.linked_edit_ranges
2542 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2543 .map(|ranges| (ranges, snapshot, buffer))
2544 })?;
2545 use text::ToOffset as TO;
2546 // find offset from the start of current range to current cursor position
2547 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2548
2549 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2550 let start_difference = start_offset - start_byte_offset;
2551 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2552 let end_difference = end_offset - start_byte_offset;
2553 // Current range has associated linked ranges.
2554 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2555 for range in linked_ranges.iter() {
2556 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2557 let end_offset = start_offset + end_difference;
2558 let start_offset = start_offset + start_difference;
2559 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2560 continue;
2561 }
2562 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2563 if s.start.buffer_id != selection.start.buffer_id
2564 || s.end.buffer_id != selection.end.buffer_id
2565 {
2566 return false;
2567 }
2568 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2569 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2570 }) {
2571 continue;
2572 }
2573 let start = buffer_snapshot.anchor_after(start_offset);
2574 let end = buffer_snapshot.anchor_after(end_offset);
2575 linked_edits
2576 .entry(buffer.clone())
2577 .or_default()
2578 .push(start..end);
2579 }
2580 Some(linked_edits)
2581 }
2582
2583 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2584 let text: Arc<str> = text.into();
2585
2586 if self.read_only(cx) {
2587 return;
2588 }
2589
2590 let selections = self.selections.all_adjusted(cx);
2591 let mut bracket_inserted = false;
2592 let mut edits = Vec::new();
2593 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2594 let mut new_selections = Vec::with_capacity(selections.len());
2595 let mut new_autoclose_regions = Vec::new();
2596 let snapshot = self.buffer.read(cx).read(cx);
2597
2598 for (selection, autoclose_region) in
2599 self.selections_with_autoclose_regions(selections, &snapshot)
2600 {
2601 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2602 // Determine if the inserted text matches the opening or closing
2603 // bracket of any of this language's bracket pairs.
2604 let mut bracket_pair = None;
2605 let mut is_bracket_pair_start = false;
2606 let mut is_bracket_pair_end = false;
2607 if !text.is_empty() {
2608 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2609 // and they are removing the character that triggered IME popup.
2610 for (pair, enabled) in scope.brackets() {
2611 if !pair.close && !pair.surround {
2612 continue;
2613 }
2614
2615 if enabled && pair.start.ends_with(text.as_ref()) {
2616 let prefix_len = pair.start.len() - text.len();
2617 let preceding_text_matches_prefix = prefix_len == 0
2618 || (selection.start.column >= (prefix_len as u32)
2619 && snapshot.contains_str_at(
2620 Point::new(
2621 selection.start.row,
2622 selection.start.column - (prefix_len as u32),
2623 ),
2624 &pair.start[..prefix_len],
2625 ));
2626 if preceding_text_matches_prefix {
2627 bracket_pair = Some(pair.clone());
2628 is_bracket_pair_start = true;
2629 break;
2630 }
2631 }
2632 if pair.end.as_str() == text.as_ref() {
2633 bracket_pair = Some(pair.clone());
2634 is_bracket_pair_end = true;
2635 break;
2636 }
2637 }
2638 }
2639
2640 if let Some(bracket_pair) = bracket_pair {
2641 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2642 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2643 let auto_surround =
2644 self.use_auto_surround && snapshot_settings.use_auto_surround;
2645 if selection.is_empty() {
2646 if is_bracket_pair_start {
2647 // If the inserted text is a suffix of an opening bracket and the
2648 // selection is preceded by the rest of the opening bracket, then
2649 // insert the closing bracket.
2650 let following_text_allows_autoclose = snapshot
2651 .chars_at(selection.start)
2652 .next()
2653 .map_or(true, |c| scope.should_autoclose_before(c));
2654
2655 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2656 && bracket_pair.start.len() == 1
2657 {
2658 let target = bracket_pair.start.chars().next().unwrap();
2659 let current_line_count = snapshot
2660 .reversed_chars_at(selection.start)
2661 .take_while(|&c| c != '\n')
2662 .filter(|&c| c == target)
2663 .count();
2664 current_line_count % 2 == 1
2665 } else {
2666 false
2667 };
2668
2669 if autoclose
2670 && bracket_pair.close
2671 && following_text_allows_autoclose
2672 && !is_closing_quote
2673 {
2674 let anchor = snapshot.anchor_before(selection.end);
2675 new_selections.push((selection.map(|_| anchor), text.len()));
2676 new_autoclose_regions.push((
2677 anchor,
2678 text.len(),
2679 selection.id,
2680 bracket_pair.clone(),
2681 ));
2682 edits.push((
2683 selection.range(),
2684 format!("{}{}", text, bracket_pair.end).into(),
2685 ));
2686 bracket_inserted = true;
2687 continue;
2688 }
2689 }
2690
2691 if let Some(region) = autoclose_region {
2692 // If the selection is followed by an auto-inserted closing bracket,
2693 // then don't insert that closing bracket again; just move the selection
2694 // past the closing bracket.
2695 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2696 && text.as_ref() == region.pair.end.as_str();
2697 if should_skip {
2698 let anchor = snapshot.anchor_after(selection.end);
2699 new_selections
2700 .push((selection.map(|_| anchor), region.pair.end.len()));
2701 continue;
2702 }
2703 }
2704
2705 let always_treat_brackets_as_autoclosed = snapshot
2706 .settings_at(selection.start, cx)
2707 .always_treat_brackets_as_autoclosed;
2708 if always_treat_brackets_as_autoclosed
2709 && is_bracket_pair_end
2710 && snapshot.contains_str_at(selection.end, text.as_ref())
2711 {
2712 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2713 // and the inserted text is a closing bracket and the selection is followed
2714 // by the closing bracket then move the selection past the closing bracket.
2715 let anchor = snapshot.anchor_after(selection.end);
2716 new_selections.push((selection.map(|_| anchor), text.len()));
2717 continue;
2718 }
2719 }
2720 // If an opening bracket is 1 character long and is typed while
2721 // text is selected, then surround that text with the bracket pair.
2722 else if auto_surround
2723 && bracket_pair.surround
2724 && is_bracket_pair_start
2725 && bracket_pair.start.chars().count() == 1
2726 {
2727 edits.push((selection.start..selection.start, text.clone()));
2728 edits.push((
2729 selection.end..selection.end,
2730 bracket_pair.end.as_str().into(),
2731 ));
2732 bracket_inserted = true;
2733 new_selections.push((
2734 Selection {
2735 id: selection.id,
2736 start: snapshot.anchor_after(selection.start),
2737 end: snapshot.anchor_before(selection.end),
2738 reversed: selection.reversed,
2739 goal: selection.goal,
2740 },
2741 0,
2742 ));
2743 continue;
2744 }
2745 }
2746 }
2747
2748 if self.auto_replace_emoji_shortcode
2749 && selection.is_empty()
2750 && text.as_ref().ends_with(':')
2751 {
2752 if let Some(possible_emoji_short_code) =
2753 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2754 {
2755 if !possible_emoji_short_code.is_empty() {
2756 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2757 let emoji_shortcode_start = Point::new(
2758 selection.start.row,
2759 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2760 );
2761
2762 // Remove shortcode from buffer
2763 edits.push((
2764 emoji_shortcode_start..selection.start,
2765 "".to_string().into(),
2766 ));
2767 new_selections.push((
2768 Selection {
2769 id: selection.id,
2770 start: snapshot.anchor_after(emoji_shortcode_start),
2771 end: snapshot.anchor_before(selection.start),
2772 reversed: selection.reversed,
2773 goal: selection.goal,
2774 },
2775 0,
2776 ));
2777
2778 // Insert emoji
2779 let selection_start_anchor = snapshot.anchor_after(selection.start);
2780 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2781 edits.push((selection.start..selection.end, emoji.to_string().into()));
2782
2783 continue;
2784 }
2785 }
2786 }
2787 }
2788
2789 // If not handling any auto-close operation, then just replace the selected
2790 // text with the given input and move the selection to the end of the
2791 // newly inserted text.
2792 let anchor = snapshot.anchor_after(selection.end);
2793 if !self.linked_edit_ranges.is_empty() {
2794 let start_anchor = snapshot.anchor_before(selection.start);
2795
2796 let is_word_char = text.chars().next().map_or(true, |char| {
2797 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2798 classifier.is_word(char)
2799 });
2800
2801 if is_word_char {
2802 if let Some(ranges) = self
2803 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2804 {
2805 for (buffer, edits) in ranges {
2806 linked_edits
2807 .entry(buffer.clone())
2808 .or_default()
2809 .extend(edits.into_iter().map(|range| (range, text.clone())));
2810 }
2811 }
2812 }
2813 }
2814
2815 new_selections.push((selection.map(|_| anchor), 0));
2816 edits.push((selection.start..selection.end, text.clone()));
2817 }
2818
2819 drop(snapshot);
2820
2821 self.transact(cx, |this, cx| {
2822 this.buffer.update(cx, |buffer, cx| {
2823 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2824 });
2825 for (buffer, edits) in linked_edits {
2826 buffer.update(cx, |buffer, cx| {
2827 let snapshot = buffer.snapshot();
2828 let edits = edits
2829 .into_iter()
2830 .map(|(range, text)| {
2831 use text::ToPoint as TP;
2832 let end_point = TP::to_point(&range.end, &snapshot);
2833 let start_point = TP::to_point(&range.start, &snapshot);
2834 (start_point..end_point, text)
2835 })
2836 .sorted_by_key(|(range, _)| range.start)
2837 .collect::<Vec<_>>();
2838 buffer.edit(edits, None, cx);
2839 })
2840 }
2841 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2842 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2843 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2844 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2845 .zip(new_selection_deltas)
2846 .map(|(selection, delta)| Selection {
2847 id: selection.id,
2848 start: selection.start + delta,
2849 end: selection.end + delta,
2850 reversed: selection.reversed,
2851 goal: SelectionGoal::None,
2852 })
2853 .collect::<Vec<_>>();
2854
2855 let mut i = 0;
2856 for (position, delta, selection_id, pair) in new_autoclose_regions {
2857 let position = position.to_offset(&map.buffer_snapshot) + delta;
2858 let start = map.buffer_snapshot.anchor_before(position);
2859 let end = map.buffer_snapshot.anchor_after(position);
2860 while let Some(existing_state) = this.autoclose_regions.get(i) {
2861 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2862 Ordering::Less => i += 1,
2863 Ordering::Greater => break,
2864 Ordering::Equal => {
2865 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2866 Ordering::Less => i += 1,
2867 Ordering::Equal => break,
2868 Ordering::Greater => break,
2869 }
2870 }
2871 }
2872 }
2873 this.autoclose_regions.insert(
2874 i,
2875 AutocloseRegion {
2876 selection_id,
2877 range: start..end,
2878 pair,
2879 },
2880 );
2881 }
2882
2883 let had_active_inline_completion = this.has_active_inline_completion();
2884 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2885 s.select(new_selections)
2886 });
2887
2888 if !bracket_inserted {
2889 if let Some(on_type_format_task) =
2890 this.trigger_on_type_formatting(text.to_string(), cx)
2891 {
2892 on_type_format_task.detach_and_log_err(cx);
2893 }
2894 }
2895
2896 let editor_settings = EditorSettings::get_global(cx);
2897 if bracket_inserted
2898 && (editor_settings.auto_signature_help
2899 || editor_settings.show_signature_help_after_edits)
2900 {
2901 this.show_signature_help(&ShowSignatureHelp, cx);
2902 }
2903
2904 let trigger_in_words =
2905 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2906 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2907 linked_editing_ranges::refresh_linked_ranges(this, cx);
2908 this.refresh_inline_completion(true, false, cx);
2909 });
2910 }
2911
2912 fn find_possible_emoji_shortcode_at_position(
2913 snapshot: &MultiBufferSnapshot,
2914 position: Point,
2915 ) -> Option<String> {
2916 let mut chars = Vec::new();
2917 let mut found_colon = false;
2918 for char in snapshot.reversed_chars_at(position).take(100) {
2919 // Found a possible emoji shortcode in the middle of the buffer
2920 if found_colon {
2921 if char.is_whitespace() {
2922 chars.reverse();
2923 return Some(chars.iter().collect());
2924 }
2925 // If the previous character is not a whitespace, we are in the middle of a word
2926 // and we only want to complete the shortcode if the word is made up of other emojis
2927 let mut containing_word = String::new();
2928 for ch in snapshot
2929 .reversed_chars_at(position)
2930 .skip(chars.len() + 1)
2931 .take(100)
2932 {
2933 if ch.is_whitespace() {
2934 break;
2935 }
2936 containing_word.push(ch);
2937 }
2938 let containing_word = containing_word.chars().rev().collect::<String>();
2939 if util::word_consists_of_emojis(containing_word.as_str()) {
2940 chars.reverse();
2941 return Some(chars.iter().collect());
2942 }
2943 }
2944
2945 if char.is_whitespace() || !char.is_ascii() {
2946 return None;
2947 }
2948 if char == ':' {
2949 found_colon = true;
2950 } else {
2951 chars.push(char);
2952 }
2953 }
2954 // Found a possible emoji shortcode at the beginning of the buffer
2955 chars.reverse();
2956 Some(chars.iter().collect())
2957 }
2958
2959 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2960 self.transact(cx, |this, cx| {
2961 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2962 let selections = this.selections.all::<usize>(cx);
2963 let multi_buffer = this.buffer.read(cx);
2964 let buffer = multi_buffer.snapshot(cx);
2965 selections
2966 .iter()
2967 .map(|selection| {
2968 let start_point = selection.start.to_point(&buffer);
2969 let mut indent =
2970 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2971 indent.len = cmp::min(indent.len, start_point.column);
2972 let start = selection.start;
2973 let end = selection.end;
2974 let selection_is_empty = start == end;
2975 let language_scope = buffer.language_scope_at(start);
2976 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2977 &language_scope
2978 {
2979 let leading_whitespace_len = buffer
2980 .reversed_chars_at(start)
2981 .take_while(|c| c.is_whitespace() && *c != '\n')
2982 .map(|c| c.len_utf8())
2983 .sum::<usize>();
2984
2985 let trailing_whitespace_len = buffer
2986 .chars_at(end)
2987 .take_while(|c| c.is_whitespace() && *c != '\n')
2988 .map(|c| c.len_utf8())
2989 .sum::<usize>();
2990
2991 let insert_extra_newline =
2992 language.brackets().any(|(pair, enabled)| {
2993 let pair_start = pair.start.trim_end();
2994 let pair_end = pair.end.trim_start();
2995
2996 enabled
2997 && pair.newline
2998 && buffer.contains_str_at(
2999 end + trailing_whitespace_len,
3000 pair_end,
3001 )
3002 && buffer.contains_str_at(
3003 (start - leading_whitespace_len)
3004 .saturating_sub(pair_start.len()),
3005 pair_start,
3006 )
3007 });
3008
3009 // Comment extension on newline is allowed only for cursor selections
3010 let comment_delimiter = maybe!({
3011 if !selection_is_empty {
3012 return None;
3013 }
3014
3015 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3016 return None;
3017 }
3018
3019 let delimiters = language.line_comment_prefixes();
3020 let max_len_of_delimiter =
3021 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3022 let (snapshot, range) =
3023 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3024
3025 let mut index_of_first_non_whitespace = 0;
3026 let comment_candidate = snapshot
3027 .chars_for_range(range)
3028 .skip_while(|c| {
3029 let should_skip = c.is_whitespace();
3030 if should_skip {
3031 index_of_first_non_whitespace += 1;
3032 }
3033 should_skip
3034 })
3035 .take(max_len_of_delimiter)
3036 .collect::<String>();
3037 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3038 comment_candidate.starts_with(comment_prefix.as_ref())
3039 })?;
3040 let cursor_is_placed_after_comment_marker =
3041 index_of_first_non_whitespace + comment_prefix.len()
3042 <= start_point.column as usize;
3043 if cursor_is_placed_after_comment_marker {
3044 Some(comment_prefix.clone())
3045 } else {
3046 None
3047 }
3048 });
3049 (comment_delimiter, insert_extra_newline)
3050 } else {
3051 (None, false)
3052 };
3053
3054 let capacity_for_delimiter = comment_delimiter
3055 .as_deref()
3056 .map(str::len)
3057 .unwrap_or_default();
3058 let mut new_text =
3059 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3060 new_text.push('\n');
3061 new_text.extend(indent.chars());
3062 if let Some(delimiter) = &comment_delimiter {
3063 new_text.push_str(delimiter);
3064 }
3065 if insert_extra_newline {
3066 new_text = new_text.repeat(2);
3067 }
3068
3069 let anchor = buffer.anchor_after(end);
3070 let new_selection = selection.map(|_| anchor);
3071 (
3072 (start..end, new_text),
3073 (insert_extra_newline, new_selection),
3074 )
3075 })
3076 .unzip()
3077 };
3078
3079 this.edit_with_autoindent(edits, cx);
3080 let buffer = this.buffer.read(cx).snapshot(cx);
3081 let new_selections = selection_fixup_info
3082 .into_iter()
3083 .map(|(extra_newline_inserted, new_selection)| {
3084 let mut cursor = new_selection.end.to_point(&buffer);
3085 if extra_newline_inserted {
3086 cursor.row -= 1;
3087 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3088 }
3089 new_selection.map(|_| cursor)
3090 })
3091 .collect();
3092
3093 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3094 this.refresh_inline_completion(true, false, cx);
3095 });
3096 }
3097
3098 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3099 let buffer = self.buffer.read(cx);
3100 let snapshot = buffer.snapshot(cx);
3101
3102 let mut edits = Vec::new();
3103 let mut rows = Vec::new();
3104
3105 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3106 let cursor = selection.head();
3107 let row = cursor.row;
3108
3109 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3110
3111 let newline = "\n".to_string();
3112 edits.push((start_of_line..start_of_line, newline));
3113
3114 rows.push(row + rows_inserted as u32);
3115 }
3116
3117 self.transact(cx, |editor, cx| {
3118 editor.edit(edits, cx);
3119
3120 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3121 let mut index = 0;
3122 s.move_cursors_with(|map, _, _| {
3123 let row = rows[index];
3124 index += 1;
3125
3126 let point = Point::new(row, 0);
3127 let boundary = map.next_line_boundary(point).1;
3128 let clipped = map.clip_point(boundary, Bias::Left);
3129
3130 (clipped, SelectionGoal::None)
3131 });
3132 });
3133
3134 let mut indent_edits = Vec::new();
3135 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3136 for row in rows {
3137 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3138 for (row, indent) in indents {
3139 if indent.len == 0 {
3140 continue;
3141 }
3142
3143 let text = match indent.kind {
3144 IndentKind::Space => " ".repeat(indent.len as usize),
3145 IndentKind::Tab => "\t".repeat(indent.len as usize),
3146 };
3147 let point = Point::new(row.0, 0);
3148 indent_edits.push((point..point, text));
3149 }
3150 }
3151 editor.edit(indent_edits, cx);
3152 });
3153 }
3154
3155 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3156 let buffer = self.buffer.read(cx);
3157 let snapshot = buffer.snapshot(cx);
3158
3159 let mut edits = Vec::new();
3160 let mut rows = Vec::new();
3161 let mut rows_inserted = 0;
3162
3163 for selection in self.selections.all_adjusted(cx) {
3164 let cursor = selection.head();
3165 let row = cursor.row;
3166
3167 let point = Point::new(row + 1, 0);
3168 let start_of_line = snapshot.clip_point(point, Bias::Left);
3169
3170 let newline = "\n".to_string();
3171 edits.push((start_of_line..start_of_line, newline));
3172
3173 rows_inserted += 1;
3174 rows.push(row + rows_inserted);
3175 }
3176
3177 self.transact(cx, |editor, cx| {
3178 editor.edit(edits, cx);
3179
3180 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3181 let mut index = 0;
3182 s.move_cursors_with(|map, _, _| {
3183 let row = rows[index];
3184 index += 1;
3185
3186 let point = Point::new(row, 0);
3187 let boundary = map.next_line_boundary(point).1;
3188 let clipped = map.clip_point(boundary, Bias::Left);
3189
3190 (clipped, SelectionGoal::None)
3191 });
3192 });
3193
3194 let mut indent_edits = Vec::new();
3195 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3196 for row in rows {
3197 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3198 for (row, indent) in indents {
3199 if indent.len == 0 {
3200 continue;
3201 }
3202
3203 let text = match indent.kind {
3204 IndentKind::Space => " ".repeat(indent.len as usize),
3205 IndentKind::Tab => "\t".repeat(indent.len as usize),
3206 };
3207 let point = Point::new(row.0, 0);
3208 indent_edits.push((point..point, text));
3209 }
3210 }
3211 editor.edit(indent_edits, cx);
3212 });
3213 }
3214
3215 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3216 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3217 original_indent_columns: Vec::new(),
3218 });
3219 self.insert_with_autoindent_mode(text, autoindent, cx);
3220 }
3221
3222 fn insert_with_autoindent_mode(
3223 &mut self,
3224 text: &str,
3225 autoindent_mode: Option<AutoindentMode>,
3226 cx: &mut ViewContext<Self>,
3227 ) {
3228 if self.read_only(cx) {
3229 return;
3230 }
3231
3232 let text: Arc<str> = text.into();
3233 self.transact(cx, |this, cx| {
3234 let old_selections = this.selections.all_adjusted(cx);
3235 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3236 let anchors = {
3237 let snapshot = buffer.read(cx);
3238 old_selections
3239 .iter()
3240 .map(|s| {
3241 let anchor = snapshot.anchor_after(s.head());
3242 s.map(|_| anchor)
3243 })
3244 .collect::<Vec<_>>()
3245 };
3246 buffer.edit(
3247 old_selections
3248 .iter()
3249 .map(|s| (s.start..s.end, text.clone())),
3250 autoindent_mode,
3251 cx,
3252 );
3253 anchors
3254 });
3255
3256 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3257 s.select_anchors(selection_anchors);
3258 })
3259 });
3260 }
3261
3262 fn trigger_completion_on_input(
3263 &mut self,
3264 text: &str,
3265 trigger_in_words: bool,
3266 cx: &mut ViewContext<Self>,
3267 ) {
3268 if self.is_completion_trigger(text, trigger_in_words, cx) {
3269 self.show_completions(
3270 &ShowCompletions {
3271 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3272 },
3273 cx,
3274 );
3275 } else {
3276 self.hide_context_menu(cx);
3277 }
3278 }
3279
3280 fn is_completion_trigger(
3281 &self,
3282 text: &str,
3283 trigger_in_words: bool,
3284 cx: &mut ViewContext<Self>,
3285 ) -> bool {
3286 let position = self.selections.newest_anchor().head();
3287 let multibuffer = self.buffer.read(cx);
3288 let Some(buffer) = position
3289 .buffer_id
3290 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3291 else {
3292 return false;
3293 };
3294
3295 if let Some(completion_provider) = &self.completion_provider {
3296 completion_provider.is_completion_trigger(
3297 &buffer,
3298 position.text_anchor,
3299 text,
3300 trigger_in_words,
3301 cx,
3302 )
3303 } else {
3304 false
3305 }
3306 }
3307
3308 /// If any empty selections is touching the start of its innermost containing autoclose
3309 /// region, expand it to select the brackets.
3310 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3311 let selections = self.selections.all::<usize>(cx);
3312 let buffer = self.buffer.read(cx).read(cx);
3313 let new_selections = self
3314 .selections_with_autoclose_regions(selections, &buffer)
3315 .map(|(mut selection, region)| {
3316 if !selection.is_empty() {
3317 return selection;
3318 }
3319
3320 if let Some(region) = region {
3321 let mut range = region.range.to_offset(&buffer);
3322 if selection.start == range.start && range.start >= region.pair.start.len() {
3323 range.start -= region.pair.start.len();
3324 if buffer.contains_str_at(range.start, ®ion.pair.start)
3325 && buffer.contains_str_at(range.end, ®ion.pair.end)
3326 {
3327 range.end += region.pair.end.len();
3328 selection.start = range.start;
3329 selection.end = range.end;
3330
3331 return selection;
3332 }
3333 }
3334 }
3335
3336 let always_treat_brackets_as_autoclosed = buffer
3337 .settings_at(selection.start, cx)
3338 .always_treat_brackets_as_autoclosed;
3339
3340 if !always_treat_brackets_as_autoclosed {
3341 return selection;
3342 }
3343
3344 if let Some(scope) = buffer.language_scope_at(selection.start) {
3345 for (pair, enabled) in scope.brackets() {
3346 if !enabled || !pair.close {
3347 continue;
3348 }
3349
3350 if buffer.contains_str_at(selection.start, &pair.end) {
3351 let pair_start_len = pair.start.len();
3352 if buffer.contains_str_at(
3353 selection.start.saturating_sub(pair_start_len),
3354 &pair.start,
3355 ) {
3356 selection.start -= pair_start_len;
3357 selection.end += pair.end.len();
3358
3359 return selection;
3360 }
3361 }
3362 }
3363 }
3364
3365 selection
3366 })
3367 .collect();
3368
3369 drop(buffer);
3370 self.change_selections(None, cx, |selections| selections.select(new_selections));
3371 }
3372
3373 /// Iterate the given selections, and for each one, find the smallest surrounding
3374 /// autoclose region. This uses the ordering of the selections and the autoclose
3375 /// regions to avoid repeated comparisons.
3376 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3377 &'a self,
3378 selections: impl IntoIterator<Item = Selection<D>>,
3379 buffer: &'a MultiBufferSnapshot,
3380 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3381 let mut i = 0;
3382 let mut regions = self.autoclose_regions.as_slice();
3383 selections.into_iter().map(move |selection| {
3384 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3385
3386 let mut enclosing = None;
3387 while let Some(pair_state) = regions.get(i) {
3388 if pair_state.range.end.to_offset(buffer) < range.start {
3389 regions = ®ions[i + 1..];
3390 i = 0;
3391 } else if pair_state.range.start.to_offset(buffer) > range.end {
3392 break;
3393 } else {
3394 if pair_state.selection_id == selection.id {
3395 enclosing = Some(pair_state);
3396 }
3397 i += 1;
3398 }
3399 }
3400
3401 (selection, enclosing)
3402 })
3403 }
3404
3405 /// Remove any autoclose regions that no longer contain their selection.
3406 fn invalidate_autoclose_regions(
3407 &mut self,
3408 mut selections: &[Selection<Anchor>],
3409 buffer: &MultiBufferSnapshot,
3410 ) {
3411 self.autoclose_regions.retain(|state| {
3412 let mut i = 0;
3413 while let Some(selection) = selections.get(i) {
3414 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3415 selections = &selections[1..];
3416 continue;
3417 }
3418 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3419 break;
3420 }
3421 if selection.id == state.selection_id {
3422 return true;
3423 } else {
3424 i += 1;
3425 }
3426 }
3427 false
3428 });
3429 }
3430
3431 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3432 let offset = position.to_offset(buffer);
3433 let (word_range, kind) = buffer.surrounding_word(offset, true);
3434 if offset > word_range.start && kind == Some(CharKind::Word) {
3435 Some(
3436 buffer
3437 .text_for_range(word_range.start..offset)
3438 .collect::<String>(),
3439 )
3440 } else {
3441 None
3442 }
3443 }
3444
3445 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3446 self.refresh_inlay_hints(
3447 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3448 cx,
3449 );
3450 }
3451
3452 pub fn inlay_hints_enabled(&self) -> bool {
3453 self.inlay_hint_cache.enabled
3454 }
3455
3456 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3457 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3458 return;
3459 }
3460
3461 let reason_description = reason.description();
3462 let ignore_debounce = matches!(
3463 reason,
3464 InlayHintRefreshReason::SettingsChange(_)
3465 | InlayHintRefreshReason::Toggle(_)
3466 | InlayHintRefreshReason::ExcerptsRemoved(_)
3467 );
3468 let (invalidate_cache, required_languages) = match reason {
3469 InlayHintRefreshReason::Toggle(enabled) => {
3470 self.inlay_hint_cache.enabled = enabled;
3471 if enabled {
3472 (InvalidationStrategy::RefreshRequested, None)
3473 } else {
3474 self.inlay_hint_cache.clear();
3475 self.splice_inlays(
3476 self.visible_inlay_hints(cx)
3477 .iter()
3478 .map(|inlay| inlay.id)
3479 .collect(),
3480 Vec::new(),
3481 cx,
3482 );
3483 return;
3484 }
3485 }
3486 InlayHintRefreshReason::SettingsChange(new_settings) => {
3487 match self.inlay_hint_cache.update_settings(
3488 &self.buffer,
3489 new_settings,
3490 self.visible_inlay_hints(cx),
3491 cx,
3492 ) {
3493 ControlFlow::Break(Some(InlaySplice {
3494 to_remove,
3495 to_insert,
3496 })) => {
3497 self.splice_inlays(to_remove, to_insert, cx);
3498 return;
3499 }
3500 ControlFlow::Break(None) => return,
3501 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3502 }
3503 }
3504 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3505 if let Some(InlaySplice {
3506 to_remove,
3507 to_insert,
3508 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3509 {
3510 self.splice_inlays(to_remove, to_insert, cx);
3511 }
3512 return;
3513 }
3514 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3515 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3516 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3517 }
3518 InlayHintRefreshReason::RefreshRequested => {
3519 (InvalidationStrategy::RefreshRequested, None)
3520 }
3521 };
3522
3523 if let Some(InlaySplice {
3524 to_remove,
3525 to_insert,
3526 }) = self.inlay_hint_cache.spawn_hint_refresh(
3527 reason_description,
3528 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3529 invalidate_cache,
3530 ignore_debounce,
3531 cx,
3532 ) {
3533 self.splice_inlays(to_remove, to_insert, cx);
3534 }
3535 }
3536
3537 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3538 self.display_map
3539 .read(cx)
3540 .current_inlays()
3541 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3542 .cloned()
3543 .collect()
3544 }
3545
3546 pub fn excerpts_for_inlay_hints_query(
3547 &self,
3548 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3549 cx: &mut ViewContext<Editor>,
3550 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3551 let Some(project) = self.project.as_ref() else {
3552 return HashMap::default();
3553 };
3554 let project = project.read(cx);
3555 let multi_buffer = self.buffer().read(cx);
3556 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3557 let multi_buffer_visible_start = self
3558 .scroll_manager
3559 .anchor()
3560 .anchor
3561 .to_point(&multi_buffer_snapshot);
3562 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3563 multi_buffer_visible_start
3564 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3565 Bias::Left,
3566 );
3567 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3568 multi_buffer_snapshot
3569 .range_to_buffer_ranges(multi_buffer_visible_range)
3570 .into_iter()
3571 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3572 .filter_map(|(excerpt, excerpt_visible_range)| {
3573 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3574 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3575 let worktree_entry = buffer_worktree
3576 .read(cx)
3577 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3578 if worktree_entry.is_ignored {
3579 return None;
3580 }
3581
3582 let language = excerpt.buffer().language()?;
3583 if let Some(restrict_to_languages) = restrict_to_languages {
3584 if !restrict_to_languages.contains(language) {
3585 return None;
3586 }
3587 }
3588 Some((
3589 excerpt.id(),
3590 (
3591 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3592 excerpt.buffer().version().clone(),
3593 excerpt_visible_range,
3594 ),
3595 ))
3596 })
3597 .collect()
3598 }
3599
3600 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3601 TextLayoutDetails {
3602 text_system: cx.text_system().clone(),
3603 editor_style: self.style.clone().unwrap(),
3604 rem_size: cx.rem_size(),
3605 scroll_anchor: self.scroll_manager.anchor(),
3606 visible_rows: self.visible_line_count(),
3607 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3608 }
3609 }
3610
3611 pub fn splice_inlays(
3612 &self,
3613 to_remove: Vec<InlayId>,
3614 to_insert: Vec<Inlay>,
3615 cx: &mut ViewContext<Self>,
3616 ) {
3617 self.display_map.update(cx, |display_map, cx| {
3618 display_map.splice_inlays(to_remove, to_insert, cx)
3619 });
3620 cx.notify();
3621 }
3622
3623 fn trigger_on_type_formatting(
3624 &self,
3625 input: String,
3626 cx: &mut ViewContext<Self>,
3627 ) -> Option<Task<Result<()>>> {
3628 if input.len() != 1 {
3629 return None;
3630 }
3631
3632 let project = self.project.as_ref()?;
3633 let position = self.selections.newest_anchor().head();
3634 let (buffer, buffer_position) = self
3635 .buffer
3636 .read(cx)
3637 .text_anchor_for_position(position, cx)?;
3638
3639 let settings = language_settings::language_settings(
3640 buffer
3641 .read(cx)
3642 .language_at(buffer_position)
3643 .map(|l| l.name()),
3644 buffer.read(cx).file(),
3645 cx,
3646 );
3647 if !settings.use_on_type_format {
3648 return None;
3649 }
3650
3651 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3652 // hence we do LSP request & edit on host side only — add formats to host's history.
3653 let push_to_lsp_host_history = true;
3654 // If this is not the host, append its history with new edits.
3655 let push_to_client_history = project.read(cx).is_via_collab();
3656
3657 let on_type_formatting = project.update(cx, |project, cx| {
3658 project.on_type_format(
3659 buffer.clone(),
3660 buffer_position,
3661 input,
3662 push_to_lsp_host_history,
3663 cx,
3664 )
3665 });
3666 Some(cx.spawn(|editor, mut cx| async move {
3667 if let Some(transaction) = on_type_formatting.await? {
3668 if push_to_client_history {
3669 buffer
3670 .update(&mut cx, |buffer, _| {
3671 buffer.push_transaction(transaction, Instant::now());
3672 })
3673 .ok();
3674 }
3675 editor.update(&mut cx, |editor, cx| {
3676 editor.refresh_document_highlights(cx);
3677 })?;
3678 }
3679 Ok(())
3680 }))
3681 }
3682
3683 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3684 if self.pending_rename.is_some() {
3685 return;
3686 }
3687
3688 let Some(provider) = self.completion_provider.as_ref() else {
3689 return;
3690 };
3691
3692 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3693 return;
3694 }
3695
3696 let position = self.selections.newest_anchor().head();
3697 let (buffer, buffer_position) =
3698 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3699 output
3700 } else {
3701 return;
3702 };
3703 let show_completion_documentation = buffer
3704 .read(cx)
3705 .snapshot()
3706 .settings_at(buffer_position, cx)
3707 .show_completion_documentation;
3708
3709 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3710
3711 let trigger_kind = match &options.trigger {
3712 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3713 CompletionTriggerKind::TRIGGER_CHARACTER
3714 }
3715 _ => CompletionTriggerKind::INVOKED,
3716 };
3717 let completion_context = CompletionContext {
3718 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3719 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3720 Some(String::from(trigger))
3721 } else {
3722 None
3723 }
3724 }),
3725 trigger_kind,
3726 };
3727 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3728 let sort_completions = provider.sort_completions();
3729
3730 let id = post_inc(&mut self.next_completion_id);
3731 let task = cx.spawn(|editor, mut cx| {
3732 async move {
3733 editor.update(&mut cx, |this, _| {
3734 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3735 })?;
3736 let completions = completions.await.log_err();
3737 let menu = if let Some(completions) = completions {
3738 let mut menu = CompletionsMenu::new(
3739 id,
3740 sort_completions,
3741 show_completion_documentation,
3742 position,
3743 buffer.clone(),
3744 completions.into(),
3745 );
3746
3747 menu.filter(query.as_deref(), cx.background_executor().clone())
3748 .await;
3749
3750 menu.visible().then_some(menu)
3751 } else {
3752 None
3753 };
3754
3755 editor.update(&mut cx, |editor, cx| {
3756 match editor.context_menu.borrow().as_ref() {
3757 None => {}
3758 Some(CodeContextMenu::Completions(prev_menu)) => {
3759 if prev_menu.id > id {
3760 return;
3761 }
3762 }
3763 _ => return,
3764 }
3765
3766 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3767 let mut menu = menu.unwrap();
3768 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3769
3770 if editor.show_inline_completions_in_menu(cx) {
3771 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3772 menu.show_inline_completion_hint(hint);
3773 }
3774 } else {
3775 editor.discard_inline_completion(false, cx);
3776 }
3777
3778 *editor.context_menu.borrow_mut() =
3779 Some(CodeContextMenu::Completions(menu));
3780
3781 cx.notify();
3782 } else if editor.completion_tasks.len() <= 1 {
3783 // If there are no more completion tasks and the last menu was
3784 // empty, we should hide it.
3785 let was_hidden = editor.hide_context_menu(cx).is_none();
3786 // If it was already hidden and we don't show inline
3787 // completions in the menu, we should also show the
3788 // inline-completion when available.
3789 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3790 editor.update_visible_inline_completion(cx);
3791 }
3792 }
3793 })?;
3794
3795 Ok::<_, anyhow::Error>(())
3796 }
3797 .log_err()
3798 });
3799
3800 self.completion_tasks.push((id, task));
3801 }
3802
3803 pub fn confirm_completion(
3804 &mut self,
3805 action: &ConfirmCompletion,
3806 cx: &mut ViewContext<Self>,
3807 ) -> Option<Task<Result<()>>> {
3808 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3809 }
3810
3811 pub fn compose_completion(
3812 &mut self,
3813 action: &ComposeCompletion,
3814 cx: &mut ViewContext<Self>,
3815 ) -> Option<Task<Result<()>>> {
3816 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3817 }
3818
3819 fn do_completion(
3820 &mut self,
3821 item_ix: Option<usize>,
3822 intent: CompletionIntent,
3823 cx: &mut ViewContext<Editor>,
3824 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3825 use language::ToOffset as _;
3826
3827 let completions_menu =
3828 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3829 menu
3830 } else {
3831 return None;
3832 };
3833
3834 let entries = completions_menu.entries.borrow();
3835 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
3836 let mat = match mat {
3837 CompletionEntry::InlineCompletionHint { .. } => {
3838 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3839 cx.stop_propagation();
3840 return Some(Task::ready(Ok(())));
3841 }
3842 CompletionEntry::Match(mat) => {
3843 if self.show_inline_completions_in_menu(cx) {
3844 self.discard_inline_completion(true, cx);
3845 }
3846 mat
3847 }
3848 };
3849 let candidate_id = mat.candidate_id;
3850 drop(entries);
3851
3852 let buffer_handle = completions_menu.buffer;
3853 let completion = completions_menu
3854 .completions
3855 .borrow()
3856 .get(candidate_id)?
3857 .clone();
3858 cx.stop_propagation();
3859
3860 let snippet;
3861 let text;
3862
3863 if completion.is_snippet() {
3864 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3865 text = snippet.as_ref().unwrap().text.clone();
3866 } else {
3867 snippet = None;
3868 text = completion.new_text.clone();
3869 };
3870 let selections = self.selections.all::<usize>(cx);
3871 let buffer = buffer_handle.read(cx);
3872 let old_range = completion.old_range.to_offset(buffer);
3873 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3874
3875 let newest_selection = self.selections.newest_anchor();
3876 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3877 return None;
3878 }
3879
3880 let lookbehind = newest_selection
3881 .start
3882 .text_anchor
3883 .to_offset(buffer)
3884 .saturating_sub(old_range.start);
3885 let lookahead = old_range
3886 .end
3887 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3888 let mut common_prefix_len = old_text
3889 .bytes()
3890 .zip(text.bytes())
3891 .take_while(|(a, b)| a == b)
3892 .count();
3893
3894 let snapshot = self.buffer.read(cx).snapshot(cx);
3895 let mut range_to_replace: Option<Range<isize>> = None;
3896 let mut ranges = Vec::new();
3897 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3898 for selection in &selections {
3899 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3900 let start = selection.start.saturating_sub(lookbehind);
3901 let end = selection.end + lookahead;
3902 if selection.id == newest_selection.id {
3903 range_to_replace = Some(
3904 ((start + common_prefix_len) as isize - selection.start as isize)
3905 ..(end as isize - selection.start as isize),
3906 );
3907 }
3908 ranges.push(start + common_prefix_len..end);
3909 } else {
3910 common_prefix_len = 0;
3911 ranges.clear();
3912 ranges.extend(selections.iter().map(|s| {
3913 if s.id == newest_selection.id {
3914 range_to_replace = Some(
3915 old_range.start.to_offset_utf16(&snapshot).0 as isize
3916 - selection.start as isize
3917 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3918 - selection.start as isize,
3919 );
3920 old_range.clone()
3921 } else {
3922 s.start..s.end
3923 }
3924 }));
3925 break;
3926 }
3927 if !self.linked_edit_ranges.is_empty() {
3928 let start_anchor = snapshot.anchor_before(selection.head());
3929 let end_anchor = snapshot.anchor_after(selection.tail());
3930 if let Some(ranges) = self
3931 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3932 {
3933 for (buffer, edits) in ranges {
3934 linked_edits.entry(buffer.clone()).or_default().extend(
3935 edits
3936 .into_iter()
3937 .map(|range| (range, text[common_prefix_len..].to_owned())),
3938 );
3939 }
3940 }
3941 }
3942 }
3943 let text = &text[common_prefix_len..];
3944
3945 cx.emit(EditorEvent::InputHandled {
3946 utf16_range_to_replace: range_to_replace,
3947 text: text.into(),
3948 });
3949
3950 self.transact(cx, |this, cx| {
3951 if let Some(mut snippet) = snippet {
3952 snippet.text = text.to_string();
3953 for tabstop in snippet
3954 .tabstops
3955 .iter_mut()
3956 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3957 {
3958 tabstop.start -= common_prefix_len as isize;
3959 tabstop.end -= common_prefix_len as isize;
3960 }
3961
3962 this.insert_snippet(&ranges, snippet, cx).log_err();
3963 } else {
3964 this.buffer.update(cx, |buffer, cx| {
3965 buffer.edit(
3966 ranges.iter().map(|range| (range.clone(), text)),
3967 this.autoindent_mode.clone(),
3968 cx,
3969 );
3970 });
3971 }
3972 for (buffer, edits) in linked_edits {
3973 buffer.update(cx, |buffer, cx| {
3974 let snapshot = buffer.snapshot();
3975 let edits = edits
3976 .into_iter()
3977 .map(|(range, text)| {
3978 use text::ToPoint as TP;
3979 let end_point = TP::to_point(&range.end, &snapshot);
3980 let start_point = TP::to_point(&range.start, &snapshot);
3981 (start_point..end_point, text)
3982 })
3983 .sorted_by_key(|(range, _)| range.start)
3984 .collect::<Vec<_>>();
3985 buffer.edit(edits, None, cx);
3986 })
3987 }
3988
3989 this.refresh_inline_completion(true, false, cx);
3990 });
3991
3992 let show_new_completions_on_confirm = completion
3993 .confirm
3994 .as_ref()
3995 .map_or(false, |confirm| confirm(intent, cx));
3996 if show_new_completions_on_confirm {
3997 self.show_completions(&ShowCompletions { trigger: None }, cx);
3998 }
3999
4000 let provider = self.completion_provider.as_ref()?;
4001 drop(completion);
4002 let apply_edits = provider.apply_additional_edits_for_completion(
4003 buffer_handle,
4004 completions_menu.completions.clone(),
4005 candidate_id,
4006 true,
4007 cx,
4008 );
4009
4010 let editor_settings = EditorSettings::get_global(cx);
4011 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4012 // After the code completion is finished, users often want to know what signatures are needed.
4013 // so we should automatically call signature_help
4014 self.show_signature_help(&ShowSignatureHelp, cx);
4015 }
4016
4017 Some(cx.foreground_executor().spawn(async move {
4018 apply_edits.await?;
4019 Ok(())
4020 }))
4021 }
4022
4023 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4024 let mut context_menu = self.context_menu.borrow_mut();
4025 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4026 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4027 // Toggle if we're selecting the same one
4028 *context_menu = None;
4029 cx.notify();
4030 return;
4031 } else {
4032 // Otherwise, clear it and start a new one
4033 *context_menu = None;
4034 cx.notify();
4035 }
4036 }
4037 drop(context_menu);
4038 let snapshot = self.snapshot(cx);
4039 let deployed_from_indicator = action.deployed_from_indicator;
4040 let mut task = self.code_actions_task.take();
4041 let action = action.clone();
4042 cx.spawn(|editor, mut cx| async move {
4043 while let Some(prev_task) = task {
4044 prev_task.await.log_err();
4045 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4046 }
4047
4048 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4049 if editor.focus_handle.is_focused(cx) {
4050 let multibuffer_point = action
4051 .deployed_from_indicator
4052 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4053 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4054 let (buffer, buffer_row) = snapshot
4055 .buffer_snapshot
4056 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4057 .and_then(|(buffer_snapshot, range)| {
4058 editor
4059 .buffer
4060 .read(cx)
4061 .buffer(buffer_snapshot.remote_id())
4062 .map(|buffer| (buffer, range.start.row))
4063 })?;
4064 let (_, code_actions) = editor
4065 .available_code_actions
4066 .clone()
4067 .and_then(|(location, code_actions)| {
4068 let snapshot = location.buffer.read(cx).snapshot();
4069 let point_range = location.range.to_point(&snapshot);
4070 let point_range = point_range.start.row..=point_range.end.row;
4071 if point_range.contains(&buffer_row) {
4072 Some((location, code_actions))
4073 } else {
4074 None
4075 }
4076 })
4077 .unzip();
4078 let buffer_id = buffer.read(cx).remote_id();
4079 let tasks = editor
4080 .tasks
4081 .get(&(buffer_id, buffer_row))
4082 .map(|t| Arc::new(t.to_owned()));
4083 if tasks.is_none() && code_actions.is_none() {
4084 return None;
4085 }
4086
4087 editor.completion_tasks.clear();
4088 editor.discard_inline_completion(false, cx);
4089 let task_context =
4090 tasks
4091 .as_ref()
4092 .zip(editor.project.clone())
4093 .map(|(tasks, project)| {
4094 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4095 });
4096
4097 Some(cx.spawn(|editor, mut cx| async move {
4098 let task_context = match task_context {
4099 Some(task_context) => task_context.await,
4100 None => None,
4101 };
4102 let resolved_tasks =
4103 tasks.zip(task_context).map(|(tasks, task_context)| {
4104 Rc::new(ResolvedTasks {
4105 templates: tasks.resolve(&task_context).collect(),
4106 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4107 multibuffer_point.row,
4108 tasks.column,
4109 )),
4110 })
4111 });
4112 let spawn_straight_away = resolved_tasks
4113 .as_ref()
4114 .map_or(false, |tasks| tasks.templates.len() == 1)
4115 && code_actions
4116 .as_ref()
4117 .map_or(true, |actions| actions.is_empty());
4118 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4119 *editor.context_menu.borrow_mut() =
4120 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4121 buffer,
4122 actions: CodeActionContents {
4123 tasks: resolved_tasks,
4124 actions: code_actions,
4125 },
4126 selected_item: Default::default(),
4127 scroll_handle: UniformListScrollHandle::default(),
4128 deployed_from_indicator,
4129 }));
4130 if spawn_straight_away {
4131 if let Some(task) = editor.confirm_code_action(
4132 &ConfirmCodeAction { item_ix: Some(0) },
4133 cx,
4134 ) {
4135 cx.notify();
4136 return task;
4137 }
4138 }
4139 cx.notify();
4140 Task::ready(Ok(()))
4141 }) {
4142 task.await
4143 } else {
4144 Ok(())
4145 }
4146 }))
4147 } else {
4148 Some(Task::ready(Ok(())))
4149 }
4150 })?;
4151 if let Some(task) = spawned_test_task {
4152 task.await?;
4153 }
4154
4155 Ok::<_, anyhow::Error>(())
4156 })
4157 .detach_and_log_err(cx);
4158 }
4159
4160 pub fn confirm_code_action(
4161 &mut self,
4162 action: &ConfirmCodeAction,
4163 cx: &mut ViewContext<Self>,
4164 ) -> Option<Task<Result<()>>> {
4165 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4166 menu
4167 } else {
4168 return None;
4169 };
4170 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4171 let action = actions_menu.actions.get(action_ix)?;
4172 let title = action.label();
4173 let buffer = actions_menu.buffer;
4174 let workspace = self.workspace()?;
4175
4176 match action {
4177 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4178 workspace.update(cx, |workspace, cx| {
4179 workspace::tasks::schedule_resolved_task(
4180 workspace,
4181 task_source_kind,
4182 resolved_task,
4183 false,
4184 cx,
4185 );
4186
4187 Some(Task::ready(Ok(())))
4188 })
4189 }
4190 CodeActionsItem::CodeAction {
4191 excerpt_id,
4192 action,
4193 provider,
4194 } => {
4195 let apply_code_action =
4196 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4197 let workspace = workspace.downgrade();
4198 Some(cx.spawn(|editor, cx| async move {
4199 let project_transaction = apply_code_action.await?;
4200 Self::open_project_transaction(
4201 &editor,
4202 workspace,
4203 project_transaction,
4204 title,
4205 cx,
4206 )
4207 .await
4208 }))
4209 }
4210 }
4211 }
4212
4213 pub async fn open_project_transaction(
4214 this: &WeakView<Editor>,
4215 workspace: WeakView<Workspace>,
4216 transaction: ProjectTransaction,
4217 title: String,
4218 mut cx: AsyncWindowContext,
4219 ) -> Result<()> {
4220 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4221 cx.update(|cx| {
4222 entries.sort_unstable_by_key(|(buffer, _)| {
4223 buffer.read(cx).file().map(|f| f.path().clone())
4224 });
4225 })?;
4226
4227 // If the project transaction's edits are all contained within this editor, then
4228 // avoid opening a new editor to display them.
4229
4230 if let Some((buffer, transaction)) = entries.first() {
4231 if entries.len() == 1 {
4232 let excerpt = this.update(&mut cx, |editor, cx| {
4233 editor
4234 .buffer()
4235 .read(cx)
4236 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4237 })?;
4238 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4239 if excerpted_buffer == *buffer {
4240 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4241 let excerpt_range = excerpt_range.to_offset(buffer);
4242 buffer
4243 .edited_ranges_for_transaction::<usize>(transaction)
4244 .all(|range| {
4245 excerpt_range.start <= range.start
4246 && excerpt_range.end >= range.end
4247 })
4248 })?;
4249
4250 if all_edits_within_excerpt {
4251 return Ok(());
4252 }
4253 }
4254 }
4255 }
4256 } else {
4257 return Ok(());
4258 }
4259
4260 let mut ranges_to_highlight = Vec::new();
4261 let excerpt_buffer = cx.new_model(|cx| {
4262 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4263 for (buffer_handle, transaction) in &entries {
4264 let buffer = buffer_handle.read(cx);
4265 ranges_to_highlight.extend(
4266 multibuffer.push_excerpts_with_context_lines(
4267 buffer_handle.clone(),
4268 buffer
4269 .edited_ranges_for_transaction::<usize>(transaction)
4270 .collect(),
4271 DEFAULT_MULTIBUFFER_CONTEXT,
4272 cx,
4273 ),
4274 );
4275 }
4276 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4277 multibuffer
4278 })?;
4279
4280 workspace.update(&mut cx, |workspace, cx| {
4281 let project = workspace.project().clone();
4282 let editor =
4283 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4284 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4285 editor.update(cx, |editor, cx| {
4286 editor.highlight_background::<Self>(
4287 &ranges_to_highlight,
4288 |theme| theme.editor_highlighted_line_background,
4289 cx,
4290 );
4291 });
4292 })?;
4293
4294 Ok(())
4295 }
4296
4297 pub fn clear_code_action_providers(&mut self) {
4298 self.code_action_providers.clear();
4299 self.available_code_actions.take();
4300 }
4301
4302 pub fn push_code_action_provider(
4303 &mut self,
4304 provider: Rc<dyn CodeActionProvider>,
4305 cx: &mut ViewContext<Self>,
4306 ) {
4307 self.code_action_providers.push(provider);
4308 self.refresh_code_actions(cx);
4309 }
4310
4311 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4312 let buffer = self.buffer.read(cx);
4313 let newest_selection = self.selections.newest_anchor().clone();
4314 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4315 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4316 if start_buffer != end_buffer {
4317 return None;
4318 }
4319
4320 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4321 cx.background_executor()
4322 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4323 .await;
4324
4325 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4326 let providers = this.code_action_providers.clone();
4327 let tasks = this
4328 .code_action_providers
4329 .iter()
4330 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4331 .collect::<Vec<_>>();
4332 (providers, tasks)
4333 })?;
4334
4335 let mut actions = Vec::new();
4336 for (provider, provider_actions) in
4337 providers.into_iter().zip(future::join_all(tasks).await)
4338 {
4339 if let Some(provider_actions) = provider_actions.log_err() {
4340 actions.extend(provider_actions.into_iter().map(|action| {
4341 AvailableCodeAction {
4342 excerpt_id: newest_selection.start.excerpt_id,
4343 action,
4344 provider: provider.clone(),
4345 }
4346 }));
4347 }
4348 }
4349
4350 this.update(&mut cx, |this, cx| {
4351 this.available_code_actions = if actions.is_empty() {
4352 None
4353 } else {
4354 Some((
4355 Location {
4356 buffer: start_buffer,
4357 range: start..end,
4358 },
4359 actions.into(),
4360 ))
4361 };
4362 cx.notify();
4363 })
4364 }));
4365 None
4366 }
4367
4368 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4369 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4370 self.show_git_blame_inline = false;
4371
4372 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4373 cx.background_executor().timer(delay).await;
4374
4375 this.update(&mut cx, |this, cx| {
4376 this.show_git_blame_inline = true;
4377 cx.notify();
4378 })
4379 .log_err();
4380 }));
4381 }
4382 }
4383
4384 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4385 if self.pending_rename.is_some() {
4386 return None;
4387 }
4388
4389 let provider = self.semantics_provider.clone()?;
4390 let buffer = self.buffer.read(cx);
4391 let newest_selection = self.selections.newest_anchor().clone();
4392 let cursor_position = newest_selection.head();
4393 let (cursor_buffer, cursor_buffer_position) =
4394 buffer.text_anchor_for_position(cursor_position, cx)?;
4395 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4396 if cursor_buffer != tail_buffer {
4397 return None;
4398 }
4399 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4400 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4401 cx.background_executor()
4402 .timer(Duration::from_millis(debounce))
4403 .await;
4404
4405 let highlights = if let Some(highlights) = cx
4406 .update(|cx| {
4407 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4408 })
4409 .ok()
4410 .flatten()
4411 {
4412 highlights.await.log_err()
4413 } else {
4414 None
4415 };
4416
4417 if let Some(highlights) = highlights {
4418 this.update(&mut cx, |this, cx| {
4419 if this.pending_rename.is_some() {
4420 return;
4421 }
4422
4423 let buffer_id = cursor_position.buffer_id;
4424 let buffer = this.buffer.read(cx);
4425 if !buffer
4426 .text_anchor_for_position(cursor_position, cx)
4427 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4428 {
4429 return;
4430 }
4431
4432 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4433 let mut write_ranges = Vec::new();
4434 let mut read_ranges = Vec::new();
4435 for highlight in highlights {
4436 for (excerpt_id, excerpt_range) in
4437 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4438 {
4439 let start = highlight
4440 .range
4441 .start
4442 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4443 let end = highlight
4444 .range
4445 .end
4446 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4447 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4448 continue;
4449 }
4450
4451 let range = Anchor {
4452 buffer_id,
4453 excerpt_id,
4454 text_anchor: start,
4455 }..Anchor {
4456 buffer_id,
4457 excerpt_id,
4458 text_anchor: end,
4459 };
4460 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4461 write_ranges.push(range);
4462 } else {
4463 read_ranges.push(range);
4464 }
4465 }
4466 }
4467
4468 this.highlight_background::<DocumentHighlightRead>(
4469 &read_ranges,
4470 |theme| theme.editor_document_highlight_read_background,
4471 cx,
4472 );
4473 this.highlight_background::<DocumentHighlightWrite>(
4474 &write_ranges,
4475 |theme| theme.editor_document_highlight_write_background,
4476 cx,
4477 );
4478 cx.notify();
4479 })
4480 .log_err();
4481 }
4482 }));
4483 None
4484 }
4485
4486 pub fn refresh_inline_completion(
4487 &mut self,
4488 debounce: bool,
4489 user_requested: bool,
4490 cx: &mut ViewContext<Self>,
4491 ) -> Option<()> {
4492 let provider = self.inline_completion_provider()?;
4493 let cursor = self.selections.newest_anchor().head();
4494 let (buffer, cursor_buffer_position) =
4495 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4496
4497 if !user_requested
4498 && (!self.enable_inline_completions
4499 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4500 || !self.is_focused(cx))
4501 {
4502 self.discard_inline_completion(false, cx);
4503 return None;
4504 }
4505
4506 self.update_visible_inline_completion(cx);
4507 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4508 Some(())
4509 }
4510
4511 fn cycle_inline_completion(
4512 &mut self,
4513 direction: Direction,
4514 cx: &mut ViewContext<Self>,
4515 ) -> Option<()> {
4516 let provider = self.inline_completion_provider()?;
4517 let cursor = self.selections.newest_anchor().head();
4518 let (buffer, cursor_buffer_position) =
4519 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4520 if !self.enable_inline_completions
4521 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4522 {
4523 return None;
4524 }
4525
4526 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4527 self.update_visible_inline_completion(cx);
4528
4529 Some(())
4530 }
4531
4532 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4533 if !self.has_active_inline_completion() {
4534 self.refresh_inline_completion(false, true, cx);
4535 return;
4536 }
4537
4538 self.update_visible_inline_completion(cx);
4539 }
4540
4541 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4542 self.show_cursor_names(cx);
4543 }
4544
4545 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4546 self.show_cursor_names = true;
4547 cx.notify();
4548 cx.spawn(|this, mut cx| async move {
4549 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4550 this.update(&mut cx, |this, cx| {
4551 this.show_cursor_names = false;
4552 cx.notify()
4553 })
4554 .ok()
4555 })
4556 .detach();
4557 }
4558
4559 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4560 if self.has_active_inline_completion() {
4561 self.cycle_inline_completion(Direction::Next, cx);
4562 } else {
4563 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4564 if is_copilot_disabled {
4565 cx.propagate();
4566 }
4567 }
4568 }
4569
4570 pub fn previous_inline_completion(
4571 &mut self,
4572 _: &PreviousInlineCompletion,
4573 cx: &mut ViewContext<Self>,
4574 ) {
4575 if self.has_active_inline_completion() {
4576 self.cycle_inline_completion(Direction::Prev, cx);
4577 } else {
4578 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4579 if is_copilot_disabled {
4580 cx.propagate();
4581 }
4582 }
4583 }
4584
4585 pub fn accept_inline_completion(
4586 &mut self,
4587 _: &AcceptInlineCompletion,
4588 cx: &mut ViewContext<Self>,
4589 ) {
4590 let buffer = self.buffer.read(cx);
4591 let snapshot = buffer.snapshot(cx);
4592 let selection = self.selections.newest_adjusted(cx);
4593 let cursor = selection.head();
4594 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4595 let suggested_indents = snapshot.suggested_indents([cursor.row], cx);
4596 if let Some(suggested_indent) = suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4597 {
4598 if cursor.column < suggested_indent.len
4599 && cursor.column <= current_indent.len
4600 && current_indent.len <= suggested_indent.len
4601 {
4602 self.tab(&Default::default(), cx);
4603 return;
4604 }
4605 }
4606
4607 if self.show_inline_completions_in_menu(cx) {
4608 self.hide_context_menu(cx);
4609 }
4610
4611 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4612 return;
4613 };
4614
4615 self.report_inline_completion_event(true, cx);
4616
4617 match &active_inline_completion.completion {
4618 InlineCompletion::Move(position) => {
4619 let position = *position;
4620 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4621 selections.select_anchor_ranges([position..position]);
4622 });
4623 }
4624 InlineCompletion::Edit(edits) => {
4625 if let Some(provider) = self.inline_completion_provider() {
4626 provider.accept(cx);
4627 }
4628
4629 let snapshot = self.buffer.read(cx).snapshot(cx);
4630 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4631
4632 self.buffer.update(cx, |buffer, cx| {
4633 buffer.edit(edits.iter().cloned(), None, cx)
4634 });
4635
4636 self.change_selections(None, cx, |s| {
4637 s.select_anchor_ranges([last_edit_end..last_edit_end])
4638 });
4639
4640 self.update_visible_inline_completion(cx);
4641 if self.active_inline_completion.is_none() {
4642 self.refresh_inline_completion(true, true, cx);
4643 }
4644
4645 cx.notify();
4646 }
4647 }
4648 }
4649
4650 pub fn accept_partial_inline_completion(
4651 &mut self,
4652 _: &AcceptPartialInlineCompletion,
4653 cx: &mut ViewContext<Self>,
4654 ) {
4655 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4656 return;
4657 };
4658 if self.selections.count() != 1 {
4659 return;
4660 }
4661
4662 self.report_inline_completion_event(true, cx);
4663
4664 match &active_inline_completion.completion {
4665 InlineCompletion::Move(position) => {
4666 let position = *position;
4667 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4668 selections.select_anchor_ranges([position..position]);
4669 });
4670 }
4671 InlineCompletion::Edit(edits) => {
4672 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4673 let text = edits[0].1.as_str();
4674 let mut partial_completion = text
4675 .chars()
4676 .by_ref()
4677 .take_while(|c| c.is_alphabetic())
4678 .collect::<String>();
4679 if partial_completion.is_empty() {
4680 partial_completion = text
4681 .chars()
4682 .by_ref()
4683 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4684 .collect::<String>();
4685 }
4686
4687 cx.emit(EditorEvent::InputHandled {
4688 utf16_range_to_replace: None,
4689 text: partial_completion.clone().into(),
4690 });
4691
4692 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4693
4694 self.refresh_inline_completion(true, true, cx);
4695 cx.notify();
4696 }
4697 }
4698 }
4699 }
4700
4701 fn discard_inline_completion(
4702 &mut self,
4703 should_report_inline_completion_event: bool,
4704 cx: &mut ViewContext<Self>,
4705 ) -> bool {
4706 if should_report_inline_completion_event {
4707 self.report_inline_completion_event(false, cx);
4708 }
4709
4710 if let Some(provider) = self.inline_completion_provider() {
4711 provider.discard(cx);
4712 }
4713
4714 self.take_active_inline_completion(cx).is_some()
4715 }
4716
4717 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4718 let Some(provider) = self.inline_completion_provider() else {
4719 return;
4720 };
4721 let Some(project) = self.project.as_ref() else {
4722 return;
4723 };
4724 let Some((_, buffer, _)) = self
4725 .buffer
4726 .read(cx)
4727 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4728 else {
4729 return;
4730 };
4731
4732 let project = project.read(cx);
4733 let extension = buffer
4734 .read(cx)
4735 .file()
4736 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4737 project.client().telemetry().report_inline_completion_event(
4738 provider.name().into(),
4739 accepted,
4740 extension,
4741 );
4742 }
4743
4744 pub fn has_active_inline_completion(&self) -> bool {
4745 self.active_inline_completion.is_some()
4746 }
4747
4748 fn take_active_inline_completion(
4749 &mut self,
4750 cx: &mut ViewContext<Self>,
4751 ) -> Option<InlineCompletion> {
4752 let active_inline_completion = self.active_inline_completion.take()?;
4753 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4754 self.clear_highlights::<InlineCompletionHighlight>(cx);
4755 Some(active_inline_completion.completion)
4756 }
4757
4758 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4759 let selection = self.selections.newest_anchor();
4760 let cursor = selection.head();
4761 let multibuffer = self.buffer.read(cx).snapshot(cx);
4762 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4763 let excerpt_id = cursor.excerpt_id;
4764
4765 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4766 && (self.context_menu.borrow().is_some()
4767 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4768 if completions_menu_has_precedence
4769 || !offset_selection.is_empty()
4770 || self
4771 .active_inline_completion
4772 .as_ref()
4773 .map_or(false, |completion| {
4774 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4775 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4776 !invalidation_range.contains(&offset_selection.head())
4777 })
4778 {
4779 self.discard_inline_completion(false, cx);
4780 return None;
4781 }
4782
4783 self.take_active_inline_completion(cx);
4784 let provider = self.inline_completion_provider()?;
4785
4786 let (buffer, cursor_buffer_position) =
4787 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4788
4789 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4790 let edits = completion
4791 .edits
4792 .into_iter()
4793 .flat_map(|(range, new_text)| {
4794 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4795 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4796 Some((start..end, new_text))
4797 })
4798 .collect::<Vec<_>>();
4799 if edits.is_empty() {
4800 return None;
4801 }
4802
4803 let first_edit_start = edits.first().unwrap().0.start;
4804 let edit_start_row = first_edit_start
4805 .to_point(&multibuffer)
4806 .row
4807 .saturating_sub(2);
4808
4809 let last_edit_end = edits.last().unwrap().0.end;
4810 let edit_end_row = cmp::min(
4811 multibuffer.max_point().row,
4812 last_edit_end.to_point(&multibuffer).row + 2,
4813 );
4814
4815 let cursor_row = cursor.to_point(&multibuffer).row;
4816
4817 let mut inlay_ids = Vec::new();
4818 let invalidation_row_range;
4819 let completion;
4820 if cursor_row < edit_start_row {
4821 invalidation_row_range = cursor_row..edit_end_row;
4822 completion = InlineCompletion::Move(first_edit_start);
4823 } else if cursor_row > edit_end_row {
4824 invalidation_row_range = edit_start_row..cursor_row;
4825 completion = InlineCompletion::Move(first_edit_start);
4826 } else {
4827 if edits
4828 .iter()
4829 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4830 {
4831 let mut inlays = Vec::new();
4832 for (range, new_text) in &edits {
4833 let inlay = Inlay::inline_completion(
4834 post_inc(&mut self.next_inlay_id),
4835 range.start,
4836 new_text.as_str(),
4837 );
4838 inlay_ids.push(inlay.id);
4839 inlays.push(inlay);
4840 }
4841
4842 self.splice_inlays(vec![], inlays, cx);
4843 } else {
4844 let background_color = cx.theme().status().deleted_background;
4845 self.highlight_text::<InlineCompletionHighlight>(
4846 edits.iter().map(|(range, _)| range.clone()).collect(),
4847 HighlightStyle {
4848 background_color: Some(background_color),
4849 ..Default::default()
4850 },
4851 cx,
4852 );
4853 }
4854
4855 invalidation_row_range = edit_start_row..edit_end_row;
4856 completion = InlineCompletion::Edit(edits);
4857 };
4858
4859 let invalidation_range = multibuffer
4860 .anchor_before(Point::new(invalidation_row_range.start, 0))
4861 ..multibuffer.anchor_after(Point::new(
4862 invalidation_row_range.end,
4863 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4864 ));
4865
4866 self.active_inline_completion = Some(InlineCompletionState {
4867 inlay_ids,
4868 completion,
4869 invalidation_range,
4870 });
4871
4872 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4873 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4874 match self.context_menu.borrow_mut().as_mut() {
4875 Some(CodeContextMenu::Completions(menu)) => {
4876 menu.show_inline_completion_hint(hint);
4877 }
4878 _ => {}
4879 }
4880 }
4881 }
4882
4883 cx.notify();
4884
4885 Some(())
4886 }
4887
4888 fn inline_completion_menu_hint(
4889 &mut self,
4890 cx: &mut ViewContext<Self>,
4891 ) -> Option<InlineCompletionMenuHint> {
4892 if self.has_active_inline_completion() {
4893 let provider_name = self.inline_completion_provider()?.display_name();
4894 let editor_snapshot = self.snapshot(cx);
4895
4896 let text = match &self.active_inline_completion.as_ref()?.completion {
4897 InlineCompletion::Edit(edits) => {
4898 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4899 }
4900 InlineCompletion::Move(target) => {
4901 let target_point =
4902 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4903 let target_line = target_point.row + 1;
4904 InlineCompletionText::Move(
4905 format!("Jump to edit in line {}", target_line).into(),
4906 )
4907 }
4908 };
4909
4910 Some(InlineCompletionMenuHint {
4911 provider_name,
4912 text,
4913 })
4914 } else {
4915 None
4916 }
4917 }
4918
4919 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4920 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4921 }
4922
4923 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4924 EditorSettings::get_global(cx).show_inline_completions_in_menu
4925 && self
4926 .inline_completion_provider()
4927 .map_or(false, |provider| provider.show_completions_in_menu())
4928 }
4929
4930 fn render_code_actions_indicator(
4931 &self,
4932 _style: &EditorStyle,
4933 row: DisplayRow,
4934 is_active: bool,
4935 cx: &mut ViewContext<Self>,
4936 ) -> Option<IconButton> {
4937 if self.available_code_actions.is_some() {
4938 Some(
4939 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4940 .shape(ui::IconButtonShape::Square)
4941 .icon_size(IconSize::XSmall)
4942 .icon_color(Color::Muted)
4943 .toggle_state(is_active)
4944 .tooltip({
4945 let focus_handle = self.focus_handle.clone();
4946 move |cx| {
4947 Tooltip::for_action_in(
4948 "Toggle Code Actions",
4949 &ToggleCodeActions {
4950 deployed_from_indicator: None,
4951 },
4952 &focus_handle,
4953 cx,
4954 )
4955 }
4956 })
4957 .on_click(cx.listener(move |editor, _e, cx| {
4958 editor.focus(cx);
4959 editor.toggle_code_actions(
4960 &ToggleCodeActions {
4961 deployed_from_indicator: Some(row),
4962 },
4963 cx,
4964 );
4965 })),
4966 )
4967 } else {
4968 None
4969 }
4970 }
4971
4972 fn clear_tasks(&mut self) {
4973 self.tasks.clear()
4974 }
4975
4976 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4977 if self.tasks.insert(key, value).is_some() {
4978 // This case should hopefully be rare, but just in case...
4979 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4980 }
4981 }
4982
4983 fn build_tasks_context(
4984 project: &Model<Project>,
4985 buffer: &Model<Buffer>,
4986 buffer_row: u32,
4987 tasks: &Arc<RunnableTasks>,
4988 cx: &mut ViewContext<Self>,
4989 ) -> Task<Option<task::TaskContext>> {
4990 let position = Point::new(buffer_row, tasks.column);
4991 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4992 let location = Location {
4993 buffer: buffer.clone(),
4994 range: range_start..range_start,
4995 };
4996 // Fill in the environmental variables from the tree-sitter captures
4997 let mut captured_task_variables = TaskVariables::default();
4998 for (capture_name, value) in tasks.extra_variables.clone() {
4999 captured_task_variables.insert(
5000 task::VariableName::Custom(capture_name.into()),
5001 value.clone(),
5002 );
5003 }
5004 project.update(cx, |project, cx| {
5005 project.task_store().update(cx, |task_store, cx| {
5006 task_store.task_context_for_location(captured_task_variables, location, cx)
5007 })
5008 })
5009 }
5010
5011 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5012 let Some((workspace, _)) = self.workspace.clone() else {
5013 return;
5014 };
5015 let Some(project) = self.project.clone() else {
5016 return;
5017 };
5018
5019 // Try to find a closest, enclosing node using tree-sitter that has a
5020 // task
5021 let Some((buffer, buffer_row, tasks)) = self
5022 .find_enclosing_node_task(cx)
5023 // Or find the task that's closest in row-distance.
5024 .or_else(|| self.find_closest_task(cx))
5025 else {
5026 return;
5027 };
5028
5029 let reveal_strategy = action.reveal;
5030 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5031 cx.spawn(|_, mut cx| async move {
5032 let context = task_context.await?;
5033 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5034
5035 let resolved = resolved_task.resolved.as_mut()?;
5036 resolved.reveal = reveal_strategy;
5037
5038 workspace
5039 .update(&mut cx, |workspace, cx| {
5040 workspace::tasks::schedule_resolved_task(
5041 workspace,
5042 task_source_kind,
5043 resolved_task,
5044 false,
5045 cx,
5046 );
5047 })
5048 .ok()
5049 })
5050 .detach();
5051 }
5052
5053 fn find_closest_task(
5054 &mut self,
5055 cx: &mut ViewContext<Self>,
5056 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5057 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5058
5059 let ((buffer_id, row), tasks) = self
5060 .tasks
5061 .iter()
5062 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5063
5064 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5065 let tasks = Arc::new(tasks.to_owned());
5066 Some((buffer, *row, tasks))
5067 }
5068
5069 fn find_enclosing_node_task(
5070 &mut self,
5071 cx: &mut ViewContext<Self>,
5072 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5073 let snapshot = self.buffer.read(cx).snapshot(cx);
5074 let offset = self.selections.newest::<usize>(cx).head();
5075 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5076 let buffer_id = excerpt.buffer().remote_id();
5077
5078 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5079 let mut cursor = layer.node().walk();
5080
5081 while cursor.goto_first_child_for_byte(offset).is_some() {
5082 if cursor.node().end_byte() == offset {
5083 cursor.goto_next_sibling();
5084 }
5085 }
5086
5087 // Ascend to the smallest ancestor that contains the range and has a task.
5088 loop {
5089 let node = cursor.node();
5090 let node_range = node.byte_range();
5091 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5092
5093 // Check if this node contains our offset
5094 if node_range.start <= offset && node_range.end >= offset {
5095 // If it contains offset, check for task
5096 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5097 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5098 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5099 }
5100 }
5101
5102 if !cursor.goto_parent() {
5103 break;
5104 }
5105 }
5106 None
5107 }
5108
5109 fn render_run_indicator(
5110 &self,
5111 _style: &EditorStyle,
5112 is_active: bool,
5113 row: DisplayRow,
5114 cx: &mut ViewContext<Self>,
5115 ) -> IconButton {
5116 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5117 .shape(ui::IconButtonShape::Square)
5118 .icon_size(IconSize::XSmall)
5119 .icon_color(Color::Muted)
5120 .toggle_state(is_active)
5121 .on_click(cx.listener(move |editor, _e, cx| {
5122 editor.focus(cx);
5123 editor.toggle_code_actions(
5124 &ToggleCodeActions {
5125 deployed_from_indicator: Some(row),
5126 },
5127 cx,
5128 );
5129 }))
5130 }
5131
5132 #[cfg(any(feature = "test-support", test))]
5133 pub fn context_menu_visible(&self) -> bool {
5134 self.context_menu
5135 .borrow()
5136 .as_ref()
5137 .map_or(false, |menu| menu.visible())
5138 }
5139
5140 #[cfg(feature = "test-support")]
5141 pub fn context_menu_contains_inline_completion(&self) -> bool {
5142 self.context_menu
5143 .borrow()
5144 .as_ref()
5145 .map_or(false, |menu| match menu {
5146 CodeContextMenu::Completions(menu) => {
5147 menu.entries.borrow().first().map_or(false, |entry| {
5148 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5149 })
5150 }
5151 CodeContextMenu::CodeActions(_) => false,
5152 })
5153 }
5154
5155 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5156 self.context_menu
5157 .borrow()
5158 .as_ref()
5159 .map(|menu| menu.origin(cursor_position))
5160 }
5161
5162 fn render_context_menu(
5163 &self,
5164 style: &EditorStyle,
5165 max_height_in_lines: u32,
5166 cx: &mut ViewContext<Editor>,
5167 ) -> Option<AnyElement> {
5168 self.context_menu.borrow().as_ref().and_then(|menu| {
5169 if menu.visible() {
5170 Some(menu.render(style, max_height_in_lines, cx))
5171 } else {
5172 None
5173 }
5174 })
5175 }
5176
5177 fn render_context_menu_aside(
5178 &self,
5179 style: &EditorStyle,
5180 max_size: Size<Pixels>,
5181 cx: &mut ViewContext<Editor>,
5182 ) -> Option<AnyElement> {
5183 self.context_menu.borrow().as_ref().and_then(|menu| {
5184 if menu.visible() {
5185 menu.render_aside(
5186 style,
5187 max_size,
5188 self.workspace.as_ref().map(|(w, _)| w.clone()),
5189 cx,
5190 )
5191 } else {
5192 None
5193 }
5194 })
5195 }
5196
5197 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5198 cx.notify();
5199 self.completion_tasks.clear();
5200 let context_menu = self.context_menu.borrow_mut().take();
5201 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5202 self.update_visible_inline_completion(cx);
5203 }
5204 context_menu
5205 }
5206
5207 fn show_snippet_choices(
5208 &mut self,
5209 choices: &Vec<String>,
5210 selection: Range<Anchor>,
5211 cx: &mut ViewContext<Self>,
5212 ) {
5213 if selection.start.buffer_id.is_none() {
5214 return;
5215 }
5216 let buffer_id = selection.start.buffer_id.unwrap();
5217 let buffer = self.buffer().read(cx).buffer(buffer_id);
5218 let id = post_inc(&mut self.next_completion_id);
5219
5220 if let Some(buffer) = buffer {
5221 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5222 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5223 ));
5224 }
5225 }
5226
5227 pub fn insert_snippet(
5228 &mut self,
5229 insertion_ranges: &[Range<usize>],
5230 snippet: Snippet,
5231 cx: &mut ViewContext<Self>,
5232 ) -> Result<()> {
5233 struct Tabstop<T> {
5234 is_end_tabstop: bool,
5235 ranges: Vec<Range<T>>,
5236 choices: Option<Vec<String>>,
5237 }
5238
5239 let tabstops = self.buffer.update(cx, |buffer, cx| {
5240 let snippet_text: Arc<str> = snippet.text.clone().into();
5241 buffer.edit(
5242 insertion_ranges
5243 .iter()
5244 .cloned()
5245 .map(|range| (range, snippet_text.clone())),
5246 Some(AutoindentMode::EachLine),
5247 cx,
5248 );
5249
5250 let snapshot = &*buffer.read(cx);
5251 let snippet = &snippet;
5252 snippet
5253 .tabstops
5254 .iter()
5255 .map(|tabstop| {
5256 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5257 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5258 });
5259 let mut tabstop_ranges = tabstop
5260 .ranges
5261 .iter()
5262 .flat_map(|tabstop_range| {
5263 let mut delta = 0_isize;
5264 insertion_ranges.iter().map(move |insertion_range| {
5265 let insertion_start = insertion_range.start as isize + delta;
5266 delta +=
5267 snippet.text.len() as isize - insertion_range.len() as isize;
5268
5269 let start = ((insertion_start + tabstop_range.start) as usize)
5270 .min(snapshot.len());
5271 let end = ((insertion_start + tabstop_range.end) as usize)
5272 .min(snapshot.len());
5273 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5274 })
5275 })
5276 .collect::<Vec<_>>();
5277 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5278
5279 Tabstop {
5280 is_end_tabstop,
5281 ranges: tabstop_ranges,
5282 choices: tabstop.choices.clone(),
5283 }
5284 })
5285 .collect::<Vec<_>>()
5286 });
5287 if let Some(tabstop) = tabstops.first() {
5288 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5289 s.select_ranges(tabstop.ranges.iter().cloned());
5290 });
5291
5292 if let Some(choices) = &tabstop.choices {
5293 if let Some(selection) = tabstop.ranges.first() {
5294 self.show_snippet_choices(choices, selection.clone(), cx)
5295 }
5296 }
5297
5298 // If we're already at the last tabstop and it's at the end of the snippet,
5299 // we're done, we don't need to keep the state around.
5300 if !tabstop.is_end_tabstop {
5301 let choices = tabstops
5302 .iter()
5303 .map(|tabstop| tabstop.choices.clone())
5304 .collect();
5305
5306 let ranges = tabstops
5307 .into_iter()
5308 .map(|tabstop| tabstop.ranges)
5309 .collect::<Vec<_>>();
5310
5311 self.snippet_stack.push(SnippetState {
5312 active_index: 0,
5313 ranges,
5314 choices,
5315 });
5316 }
5317
5318 // Check whether the just-entered snippet ends with an auto-closable bracket.
5319 if self.autoclose_regions.is_empty() {
5320 let snapshot = self.buffer.read(cx).snapshot(cx);
5321 for selection in &mut self.selections.all::<Point>(cx) {
5322 let selection_head = selection.head();
5323 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5324 continue;
5325 };
5326
5327 let mut bracket_pair = None;
5328 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5329 let prev_chars = snapshot
5330 .reversed_chars_at(selection_head)
5331 .collect::<String>();
5332 for (pair, enabled) in scope.brackets() {
5333 if enabled
5334 && pair.close
5335 && prev_chars.starts_with(pair.start.as_str())
5336 && next_chars.starts_with(pair.end.as_str())
5337 {
5338 bracket_pair = Some(pair.clone());
5339 break;
5340 }
5341 }
5342 if let Some(pair) = bracket_pair {
5343 let start = snapshot.anchor_after(selection_head);
5344 let end = snapshot.anchor_after(selection_head);
5345 self.autoclose_regions.push(AutocloseRegion {
5346 selection_id: selection.id,
5347 range: start..end,
5348 pair,
5349 });
5350 }
5351 }
5352 }
5353 }
5354 Ok(())
5355 }
5356
5357 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5358 self.move_to_snippet_tabstop(Bias::Right, cx)
5359 }
5360
5361 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5362 self.move_to_snippet_tabstop(Bias::Left, cx)
5363 }
5364
5365 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5366 if let Some(mut snippet) = self.snippet_stack.pop() {
5367 match bias {
5368 Bias::Left => {
5369 if snippet.active_index > 0 {
5370 snippet.active_index -= 1;
5371 } else {
5372 self.snippet_stack.push(snippet);
5373 return false;
5374 }
5375 }
5376 Bias::Right => {
5377 if snippet.active_index + 1 < snippet.ranges.len() {
5378 snippet.active_index += 1;
5379 } else {
5380 self.snippet_stack.push(snippet);
5381 return false;
5382 }
5383 }
5384 }
5385 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5387 s.select_anchor_ranges(current_ranges.iter().cloned())
5388 });
5389
5390 if let Some(choices) = &snippet.choices[snippet.active_index] {
5391 if let Some(selection) = current_ranges.first() {
5392 self.show_snippet_choices(&choices, selection.clone(), cx);
5393 }
5394 }
5395
5396 // If snippet state is not at the last tabstop, push it back on the stack
5397 if snippet.active_index + 1 < snippet.ranges.len() {
5398 self.snippet_stack.push(snippet);
5399 }
5400 return true;
5401 }
5402 }
5403
5404 false
5405 }
5406
5407 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5408 self.transact(cx, |this, cx| {
5409 this.select_all(&SelectAll, cx);
5410 this.insert("", cx);
5411 });
5412 }
5413
5414 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5415 self.transact(cx, |this, cx| {
5416 this.select_autoclose_pair(cx);
5417 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5418 if !this.linked_edit_ranges.is_empty() {
5419 let selections = this.selections.all::<MultiBufferPoint>(cx);
5420 let snapshot = this.buffer.read(cx).snapshot(cx);
5421
5422 for selection in selections.iter() {
5423 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5424 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5425 if selection_start.buffer_id != selection_end.buffer_id {
5426 continue;
5427 }
5428 if let Some(ranges) =
5429 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5430 {
5431 for (buffer, entries) in ranges {
5432 linked_ranges.entry(buffer).or_default().extend(entries);
5433 }
5434 }
5435 }
5436 }
5437
5438 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5439 if !this.selections.line_mode {
5440 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5441 for selection in &mut selections {
5442 if selection.is_empty() {
5443 let old_head = selection.head();
5444 let mut new_head =
5445 movement::left(&display_map, old_head.to_display_point(&display_map))
5446 .to_point(&display_map);
5447 if let Some((buffer, line_buffer_range)) = display_map
5448 .buffer_snapshot
5449 .buffer_line_for_row(MultiBufferRow(old_head.row))
5450 {
5451 let indent_size =
5452 buffer.indent_size_for_line(line_buffer_range.start.row);
5453 let indent_len = match indent_size.kind {
5454 IndentKind::Space => {
5455 buffer.settings_at(line_buffer_range.start, cx).tab_size
5456 }
5457 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5458 };
5459 if old_head.column <= indent_size.len && old_head.column > 0 {
5460 let indent_len = indent_len.get();
5461 new_head = cmp::min(
5462 new_head,
5463 MultiBufferPoint::new(
5464 old_head.row,
5465 ((old_head.column - 1) / indent_len) * indent_len,
5466 ),
5467 );
5468 }
5469 }
5470
5471 selection.set_head(new_head, SelectionGoal::None);
5472 }
5473 }
5474 }
5475
5476 this.signature_help_state.set_backspace_pressed(true);
5477 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5478 this.insert("", cx);
5479 let empty_str: Arc<str> = Arc::from("");
5480 for (buffer, edits) in linked_ranges {
5481 let snapshot = buffer.read(cx).snapshot();
5482 use text::ToPoint as TP;
5483
5484 let edits = edits
5485 .into_iter()
5486 .map(|range| {
5487 let end_point = TP::to_point(&range.end, &snapshot);
5488 let mut start_point = TP::to_point(&range.start, &snapshot);
5489
5490 if end_point == start_point {
5491 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5492 .saturating_sub(1);
5493 start_point =
5494 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5495 };
5496
5497 (start_point..end_point, empty_str.clone())
5498 })
5499 .sorted_by_key(|(range, _)| range.start)
5500 .collect::<Vec<_>>();
5501 buffer.update(cx, |this, cx| {
5502 this.edit(edits, None, cx);
5503 })
5504 }
5505 this.refresh_inline_completion(true, false, cx);
5506 linked_editing_ranges::refresh_linked_ranges(this, cx);
5507 });
5508 }
5509
5510 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5511 self.transact(cx, |this, cx| {
5512 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5513 let line_mode = s.line_mode;
5514 s.move_with(|map, selection| {
5515 if selection.is_empty() && !line_mode {
5516 let cursor = movement::right(map, selection.head());
5517 selection.end = cursor;
5518 selection.reversed = true;
5519 selection.goal = SelectionGoal::None;
5520 }
5521 })
5522 });
5523 this.insert("", cx);
5524 this.refresh_inline_completion(true, false, cx);
5525 });
5526 }
5527
5528 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5529 if self.move_to_prev_snippet_tabstop(cx) {
5530 return;
5531 }
5532
5533 self.outdent(&Outdent, cx);
5534 }
5535
5536 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5537 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5538 return;
5539 }
5540
5541 let mut selections = self.selections.all_adjusted(cx);
5542 let buffer = self.buffer.read(cx);
5543 let snapshot = buffer.snapshot(cx);
5544 let rows_iter = selections.iter().map(|s| s.head().row);
5545 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5546
5547 let mut edits = Vec::new();
5548 let mut prev_edited_row = 0;
5549 let mut row_delta = 0;
5550 for selection in &mut selections {
5551 if selection.start.row != prev_edited_row {
5552 row_delta = 0;
5553 }
5554 prev_edited_row = selection.end.row;
5555
5556 // If the selection is non-empty, then increase the indentation of the selected lines.
5557 if !selection.is_empty() {
5558 row_delta =
5559 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5560 continue;
5561 }
5562
5563 // If the selection is empty and the cursor is in the leading whitespace before the
5564 // suggested indentation, then auto-indent the line.
5565 let cursor = selection.head();
5566 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5567 if let Some(suggested_indent) =
5568 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5569 {
5570 if cursor.column < suggested_indent.len
5571 && cursor.column <= current_indent.len
5572 && current_indent.len <= suggested_indent.len
5573 {
5574 selection.start = Point::new(cursor.row, suggested_indent.len);
5575 selection.end = selection.start;
5576 if row_delta == 0 {
5577 edits.extend(Buffer::edit_for_indent_size_adjustment(
5578 cursor.row,
5579 current_indent,
5580 suggested_indent,
5581 ));
5582 row_delta = suggested_indent.len - current_indent.len;
5583 }
5584 continue;
5585 }
5586 }
5587
5588 // Otherwise, insert a hard or soft tab.
5589 let settings = buffer.settings_at(cursor, cx);
5590 let tab_size = if settings.hard_tabs {
5591 IndentSize::tab()
5592 } else {
5593 let tab_size = settings.tab_size.get();
5594 let char_column = snapshot
5595 .text_for_range(Point::new(cursor.row, 0)..cursor)
5596 .flat_map(str::chars)
5597 .count()
5598 + row_delta as usize;
5599 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5600 IndentSize::spaces(chars_to_next_tab_stop)
5601 };
5602 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5603 selection.end = selection.start;
5604 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5605 row_delta += tab_size.len;
5606 }
5607
5608 self.transact(cx, |this, cx| {
5609 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5610 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5611 this.refresh_inline_completion(true, false, cx);
5612 });
5613 }
5614
5615 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5616 if self.read_only(cx) {
5617 return;
5618 }
5619 let mut selections = self.selections.all::<Point>(cx);
5620 let mut prev_edited_row = 0;
5621 let mut row_delta = 0;
5622 let mut edits = Vec::new();
5623 let buffer = self.buffer.read(cx);
5624 let snapshot = buffer.snapshot(cx);
5625 for selection in &mut selections {
5626 if selection.start.row != prev_edited_row {
5627 row_delta = 0;
5628 }
5629 prev_edited_row = selection.end.row;
5630
5631 row_delta =
5632 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5633 }
5634
5635 self.transact(cx, |this, cx| {
5636 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5637 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5638 });
5639 }
5640
5641 fn indent_selection(
5642 buffer: &MultiBuffer,
5643 snapshot: &MultiBufferSnapshot,
5644 selection: &mut Selection<Point>,
5645 edits: &mut Vec<(Range<Point>, String)>,
5646 delta_for_start_row: u32,
5647 cx: &AppContext,
5648 ) -> u32 {
5649 let settings = buffer.settings_at(selection.start, cx);
5650 let tab_size = settings.tab_size.get();
5651 let indent_kind = if settings.hard_tabs {
5652 IndentKind::Tab
5653 } else {
5654 IndentKind::Space
5655 };
5656 let mut start_row = selection.start.row;
5657 let mut end_row = selection.end.row + 1;
5658
5659 // If a selection ends at the beginning of a line, don't indent
5660 // that last line.
5661 if selection.end.column == 0 && selection.end.row > selection.start.row {
5662 end_row -= 1;
5663 }
5664
5665 // Avoid re-indenting a row that has already been indented by a
5666 // previous selection, but still update this selection's column
5667 // to reflect that indentation.
5668 if delta_for_start_row > 0 {
5669 start_row += 1;
5670 selection.start.column += delta_for_start_row;
5671 if selection.end.row == selection.start.row {
5672 selection.end.column += delta_for_start_row;
5673 }
5674 }
5675
5676 let mut delta_for_end_row = 0;
5677 let has_multiple_rows = start_row + 1 != end_row;
5678 for row in start_row..end_row {
5679 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5680 let indent_delta = match (current_indent.kind, indent_kind) {
5681 (IndentKind::Space, IndentKind::Space) => {
5682 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5683 IndentSize::spaces(columns_to_next_tab_stop)
5684 }
5685 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5686 (_, IndentKind::Tab) => IndentSize::tab(),
5687 };
5688
5689 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5690 0
5691 } else {
5692 selection.start.column
5693 };
5694 let row_start = Point::new(row, start);
5695 edits.push((
5696 row_start..row_start,
5697 indent_delta.chars().collect::<String>(),
5698 ));
5699
5700 // Update this selection's endpoints to reflect the indentation.
5701 if row == selection.start.row {
5702 selection.start.column += indent_delta.len;
5703 }
5704 if row == selection.end.row {
5705 selection.end.column += indent_delta.len;
5706 delta_for_end_row = indent_delta.len;
5707 }
5708 }
5709
5710 if selection.start.row == selection.end.row {
5711 delta_for_start_row + delta_for_end_row
5712 } else {
5713 delta_for_end_row
5714 }
5715 }
5716
5717 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5718 if self.read_only(cx) {
5719 return;
5720 }
5721 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5722 let selections = self.selections.all::<Point>(cx);
5723 let mut deletion_ranges = Vec::new();
5724 let mut last_outdent = None;
5725 {
5726 let buffer = self.buffer.read(cx);
5727 let snapshot = buffer.snapshot(cx);
5728 for selection in &selections {
5729 let settings = buffer.settings_at(selection.start, cx);
5730 let tab_size = settings.tab_size.get();
5731 let mut rows = selection.spanned_rows(false, &display_map);
5732
5733 // Avoid re-outdenting a row that has already been outdented by a
5734 // previous selection.
5735 if let Some(last_row) = last_outdent {
5736 if last_row == rows.start {
5737 rows.start = rows.start.next_row();
5738 }
5739 }
5740 let has_multiple_rows = rows.len() > 1;
5741 for row in rows.iter_rows() {
5742 let indent_size = snapshot.indent_size_for_line(row);
5743 if indent_size.len > 0 {
5744 let deletion_len = match indent_size.kind {
5745 IndentKind::Space => {
5746 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5747 if columns_to_prev_tab_stop == 0 {
5748 tab_size
5749 } else {
5750 columns_to_prev_tab_stop
5751 }
5752 }
5753 IndentKind::Tab => 1,
5754 };
5755 let start = if has_multiple_rows
5756 || deletion_len > selection.start.column
5757 || indent_size.len < selection.start.column
5758 {
5759 0
5760 } else {
5761 selection.start.column - deletion_len
5762 };
5763 deletion_ranges.push(
5764 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5765 );
5766 last_outdent = Some(row);
5767 }
5768 }
5769 }
5770 }
5771
5772 self.transact(cx, |this, cx| {
5773 this.buffer.update(cx, |buffer, cx| {
5774 let empty_str: Arc<str> = Arc::default();
5775 buffer.edit(
5776 deletion_ranges
5777 .into_iter()
5778 .map(|range| (range, empty_str.clone())),
5779 None,
5780 cx,
5781 );
5782 });
5783 let selections = this.selections.all::<usize>(cx);
5784 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5785 });
5786 }
5787
5788 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5789 if self.read_only(cx) {
5790 return;
5791 }
5792 let selections = self
5793 .selections
5794 .all::<usize>(cx)
5795 .into_iter()
5796 .map(|s| s.range());
5797
5798 self.transact(cx, |this, cx| {
5799 this.buffer.update(cx, |buffer, cx| {
5800 buffer.autoindent_ranges(selections, cx);
5801 });
5802 let selections = this.selections.all::<usize>(cx);
5803 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5804 });
5805 }
5806
5807 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5809 let selections = self.selections.all::<Point>(cx);
5810
5811 let mut new_cursors = Vec::new();
5812 let mut edit_ranges = Vec::new();
5813 let mut selections = selections.iter().peekable();
5814 while let Some(selection) = selections.next() {
5815 let mut rows = selection.spanned_rows(false, &display_map);
5816 let goal_display_column = selection.head().to_display_point(&display_map).column();
5817
5818 // Accumulate contiguous regions of rows that we want to delete.
5819 while let Some(next_selection) = selections.peek() {
5820 let next_rows = next_selection.spanned_rows(false, &display_map);
5821 if next_rows.start <= rows.end {
5822 rows.end = next_rows.end;
5823 selections.next().unwrap();
5824 } else {
5825 break;
5826 }
5827 }
5828
5829 let buffer = &display_map.buffer_snapshot;
5830 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5831 let edit_end;
5832 let cursor_buffer_row;
5833 if buffer.max_point().row >= rows.end.0 {
5834 // If there's a line after the range, delete the \n from the end of the row range
5835 // and position the cursor on the next line.
5836 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5837 cursor_buffer_row = rows.end;
5838 } else {
5839 // If there isn't a line after the range, delete the \n from the line before the
5840 // start of the row range and position the cursor there.
5841 edit_start = edit_start.saturating_sub(1);
5842 edit_end = buffer.len();
5843 cursor_buffer_row = rows.start.previous_row();
5844 }
5845
5846 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5847 *cursor.column_mut() =
5848 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5849
5850 new_cursors.push((
5851 selection.id,
5852 buffer.anchor_after(cursor.to_point(&display_map)),
5853 ));
5854 edit_ranges.push(edit_start..edit_end);
5855 }
5856
5857 self.transact(cx, |this, cx| {
5858 let buffer = this.buffer.update(cx, |buffer, cx| {
5859 let empty_str: Arc<str> = Arc::default();
5860 buffer.edit(
5861 edit_ranges
5862 .into_iter()
5863 .map(|range| (range, empty_str.clone())),
5864 None,
5865 cx,
5866 );
5867 buffer.snapshot(cx)
5868 });
5869 let new_selections = new_cursors
5870 .into_iter()
5871 .map(|(id, cursor)| {
5872 let cursor = cursor.to_point(&buffer);
5873 Selection {
5874 id,
5875 start: cursor,
5876 end: cursor,
5877 reversed: false,
5878 goal: SelectionGoal::None,
5879 }
5880 })
5881 .collect();
5882
5883 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5884 s.select(new_selections);
5885 });
5886 });
5887 }
5888
5889 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
5890 if self.read_only(cx) {
5891 return;
5892 }
5893 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5894 for selection in self.selections.all::<Point>(cx) {
5895 let start = MultiBufferRow(selection.start.row);
5896 // Treat single line selections as if they include the next line. Otherwise this action
5897 // would do nothing for single line selections individual cursors.
5898 let end = if selection.start.row == selection.end.row {
5899 MultiBufferRow(selection.start.row + 1)
5900 } else {
5901 MultiBufferRow(selection.end.row)
5902 };
5903
5904 if let Some(last_row_range) = row_ranges.last_mut() {
5905 if start <= last_row_range.end {
5906 last_row_range.end = end;
5907 continue;
5908 }
5909 }
5910 row_ranges.push(start..end);
5911 }
5912
5913 let snapshot = self.buffer.read(cx).snapshot(cx);
5914 let mut cursor_positions = Vec::new();
5915 for row_range in &row_ranges {
5916 let anchor = snapshot.anchor_before(Point::new(
5917 row_range.end.previous_row().0,
5918 snapshot.line_len(row_range.end.previous_row()),
5919 ));
5920 cursor_positions.push(anchor..anchor);
5921 }
5922
5923 self.transact(cx, |this, cx| {
5924 for row_range in row_ranges.into_iter().rev() {
5925 for row in row_range.iter_rows().rev() {
5926 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5927 let next_line_row = row.next_row();
5928 let indent = snapshot.indent_size_for_line(next_line_row);
5929 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5930
5931 let replace =
5932 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
5933 " "
5934 } else {
5935 ""
5936 };
5937
5938 this.buffer.update(cx, |buffer, cx| {
5939 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5940 });
5941 }
5942 }
5943
5944 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5945 s.select_anchor_ranges(cursor_positions)
5946 });
5947 });
5948 }
5949
5950 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5951 self.join_lines_impl(true, cx);
5952 }
5953
5954 pub fn sort_lines_case_sensitive(
5955 &mut self,
5956 _: &SortLinesCaseSensitive,
5957 cx: &mut ViewContext<Self>,
5958 ) {
5959 self.manipulate_lines(cx, |lines| lines.sort())
5960 }
5961
5962 pub fn sort_lines_case_insensitive(
5963 &mut self,
5964 _: &SortLinesCaseInsensitive,
5965 cx: &mut ViewContext<Self>,
5966 ) {
5967 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5968 }
5969
5970 pub fn unique_lines_case_insensitive(
5971 &mut self,
5972 _: &UniqueLinesCaseInsensitive,
5973 cx: &mut ViewContext<Self>,
5974 ) {
5975 self.manipulate_lines(cx, |lines| {
5976 let mut seen = HashSet::default();
5977 lines.retain(|line| seen.insert(line.to_lowercase()));
5978 })
5979 }
5980
5981 pub fn unique_lines_case_sensitive(
5982 &mut self,
5983 _: &UniqueLinesCaseSensitive,
5984 cx: &mut ViewContext<Self>,
5985 ) {
5986 self.manipulate_lines(cx, |lines| {
5987 let mut seen = HashSet::default();
5988 lines.retain(|line| seen.insert(*line));
5989 })
5990 }
5991
5992 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5993 let mut revert_changes = HashMap::default();
5994 let snapshot = self.snapshot(cx);
5995 for hunk in hunks_for_ranges(
5996 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5997 &snapshot,
5998 ) {
5999 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6000 }
6001 if !revert_changes.is_empty() {
6002 self.transact(cx, |editor, cx| {
6003 editor.revert(revert_changes, cx);
6004 });
6005 }
6006 }
6007
6008 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6009 let Some(project) = self.project.clone() else {
6010 return;
6011 };
6012 self.reload(project, cx).detach_and_notify_err(cx);
6013 }
6014
6015 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6016 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6017 if !revert_changes.is_empty() {
6018 self.transact(cx, |editor, cx| {
6019 editor.revert(revert_changes, cx);
6020 });
6021 }
6022 }
6023
6024 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6025 let snapshot = self.buffer.read(cx).read(cx);
6026 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6027 drop(snapshot);
6028 let mut revert_changes = HashMap::default();
6029 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6030 if !revert_changes.is_empty() {
6031 self.revert(revert_changes, cx)
6032 }
6033 }
6034 }
6035
6036 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6037 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6038 let project_path = buffer.read(cx).project_path(cx)?;
6039 let project = self.project.as_ref()?.read(cx);
6040 let entry = project.entry_for_path(&project_path, cx)?;
6041 let parent = match &entry.canonical_path {
6042 Some(canonical_path) => canonical_path.to_path_buf(),
6043 None => project.absolute_path(&project_path, cx)?,
6044 }
6045 .parent()?
6046 .to_path_buf();
6047 Some(parent)
6048 }) {
6049 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6050 }
6051 }
6052
6053 fn gather_revert_changes(
6054 &mut self,
6055 selections: &[Selection<Point>],
6056 cx: &mut ViewContext<Editor>,
6057 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6058 let mut revert_changes = HashMap::default();
6059 let snapshot = self.snapshot(cx);
6060 for hunk in hunks_for_selections(&snapshot, selections) {
6061 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6062 }
6063 revert_changes
6064 }
6065
6066 pub fn prepare_revert_change(
6067 &mut self,
6068 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6069 hunk: &MultiBufferDiffHunk,
6070 cx: &AppContext,
6071 ) -> Option<()> {
6072 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6073 let buffer = buffer.read(cx);
6074 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6075 let original_text = change_set
6076 .read(cx)
6077 .base_text
6078 .as_ref()?
6079 .read(cx)
6080 .as_rope()
6081 .slice(hunk.diff_base_byte_range.clone());
6082 let buffer_snapshot = buffer.snapshot();
6083 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6084 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6085 probe
6086 .0
6087 .start
6088 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6089 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6090 }) {
6091 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6092 Some(())
6093 } else {
6094 None
6095 }
6096 }
6097
6098 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6099 self.manipulate_lines(cx, |lines| lines.reverse())
6100 }
6101
6102 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6103 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6104 }
6105
6106 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6107 where
6108 Fn: FnMut(&mut Vec<&str>),
6109 {
6110 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6111 let buffer = self.buffer.read(cx).snapshot(cx);
6112
6113 let mut edits = Vec::new();
6114
6115 let selections = self.selections.all::<Point>(cx);
6116 let mut selections = selections.iter().peekable();
6117 let mut contiguous_row_selections = Vec::new();
6118 let mut new_selections = Vec::new();
6119 let mut added_lines = 0;
6120 let mut removed_lines = 0;
6121
6122 while let Some(selection) = selections.next() {
6123 let (start_row, end_row) = consume_contiguous_rows(
6124 &mut contiguous_row_selections,
6125 selection,
6126 &display_map,
6127 &mut selections,
6128 );
6129
6130 let start_point = Point::new(start_row.0, 0);
6131 let end_point = Point::new(
6132 end_row.previous_row().0,
6133 buffer.line_len(end_row.previous_row()),
6134 );
6135 let text = buffer
6136 .text_for_range(start_point..end_point)
6137 .collect::<String>();
6138
6139 let mut lines = text.split('\n').collect_vec();
6140
6141 let lines_before = lines.len();
6142 callback(&mut lines);
6143 let lines_after = lines.len();
6144
6145 edits.push((start_point..end_point, lines.join("\n")));
6146
6147 // Selections must change based on added and removed line count
6148 let start_row =
6149 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6150 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6151 new_selections.push(Selection {
6152 id: selection.id,
6153 start: start_row,
6154 end: end_row,
6155 goal: SelectionGoal::None,
6156 reversed: selection.reversed,
6157 });
6158
6159 if lines_after > lines_before {
6160 added_lines += lines_after - lines_before;
6161 } else if lines_before > lines_after {
6162 removed_lines += lines_before - lines_after;
6163 }
6164 }
6165
6166 self.transact(cx, |this, cx| {
6167 let buffer = this.buffer.update(cx, |buffer, cx| {
6168 buffer.edit(edits, None, cx);
6169 buffer.snapshot(cx)
6170 });
6171
6172 // Recalculate offsets on newly edited buffer
6173 let new_selections = new_selections
6174 .iter()
6175 .map(|s| {
6176 let start_point = Point::new(s.start.0, 0);
6177 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6178 Selection {
6179 id: s.id,
6180 start: buffer.point_to_offset(start_point),
6181 end: buffer.point_to_offset(end_point),
6182 goal: s.goal,
6183 reversed: s.reversed,
6184 }
6185 })
6186 .collect();
6187
6188 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6189 s.select(new_selections);
6190 });
6191
6192 this.request_autoscroll(Autoscroll::fit(), cx);
6193 });
6194 }
6195
6196 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6197 self.manipulate_text(cx, |text| text.to_uppercase())
6198 }
6199
6200 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6201 self.manipulate_text(cx, |text| text.to_lowercase())
6202 }
6203
6204 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6205 self.manipulate_text(cx, |text| {
6206 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6207 // https://github.com/rutrum/convert-case/issues/16
6208 text.split('\n')
6209 .map(|line| line.to_case(Case::Title))
6210 .join("\n")
6211 })
6212 }
6213
6214 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6215 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6216 }
6217
6218 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6219 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6220 }
6221
6222 pub fn convert_to_upper_camel_case(
6223 &mut self,
6224 _: &ConvertToUpperCamelCase,
6225 cx: &mut ViewContext<Self>,
6226 ) {
6227 self.manipulate_text(cx, |text| {
6228 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6229 // https://github.com/rutrum/convert-case/issues/16
6230 text.split('\n')
6231 .map(|line| line.to_case(Case::UpperCamel))
6232 .join("\n")
6233 })
6234 }
6235
6236 pub fn convert_to_lower_camel_case(
6237 &mut self,
6238 _: &ConvertToLowerCamelCase,
6239 cx: &mut ViewContext<Self>,
6240 ) {
6241 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6242 }
6243
6244 pub fn convert_to_opposite_case(
6245 &mut self,
6246 _: &ConvertToOppositeCase,
6247 cx: &mut ViewContext<Self>,
6248 ) {
6249 self.manipulate_text(cx, |text| {
6250 text.chars()
6251 .fold(String::with_capacity(text.len()), |mut t, c| {
6252 if c.is_uppercase() {
6253 t.extend(c.to_lowercase());
6254 } else {
6255 t.extend(c.to_uppercase());
6256 }
6257 t
6258 })
6259 })
6260 }
6261
6262 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6263 where
6264 Fn: FnMut(&str) -> String,
6265 {
6266 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6267 let buffer = self.buffer.read(cx).snapshot(cx);
6268
6269 let mut new_selections = Vec::new();
6270 let mut edits = Vec::new();
6271 let mut selection_adjustment = 0i32;
6272
6273 for selection in self.selections.all::<usize>(cx) {
6274 let selection_is_empty = selection.is_empty();
6275
6276 let (start, end) = if selection_is_empty {
6277 let word_range = movement::surrounding_word(
6278 &display_map,
6279 selection.start.to_display_point(&display_map),
6280 );
6281 let start = word_range.start.to_offset(&display_map, Bias::Left);
6282 let end = word_range.end.to_offset(&display_map, Bias::Left);
6283 (start, end)
6284 } else {
6285 (selection.start, selection.end)
6286 };
6287
6288 let text = buffer.text_for_range(start..end).collect::<String>();
6289 let old_length = text.len() as i32;
6290 let text = callback(&text);
6291
6292 new_selections.push(Selection {
6293 start: (start as i32 - selection_adjustment) as usize,
6294 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6295 goal: SelectionGoal::None,
6296 ..selection
6297 });
6298
6299 selection_adjustment += old_length - text.len() as i32;
6300
6301 edits.push((start..end, text));
6302 }
6303
6304 self.transact(cx, |this, cx| {
6305 this.buffer.update(cx, |buffer, cx| {
6306 buffer.edit(edits, None, cx);
6307 });
6308
6309 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6310 s.select(new_selections);
6311 });
6312
6313 this.request_autoscroll(Autoscroll::fit(), cx);
6314 });
6315 }
6316
6317 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6318 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6319 let buffer = &display_map.buffer_snapshot;
6320 let selections = self.selections.all::<Point>(cx);
6321
6322 let mut edits = Vec::new();
6323 let mut selections_iter = selections.iter().peekable();
6324 while let Some(selection) = selections_iter.next() {
6325 let mut rows = selection.spanned_rows(false, &display_map);
6326 // duplicate line-wise
6327 if whole_lines || selection.start == selection.end {
6328 // Avoid duplicating the same lines twice.
6329 while let Some(next_selection) = selections_iter.peek() {
6330 let next_rows = next_selection.spanned_rows(false, &display_map);
6331 if next_rows.start < rows.end {
6332 rows.end = next_rows.end;
6333 selections_iter.next().unwrap();
6334 } else {
6335 break;
6336 }
6337 }
6338
6339 // Copy the text from the selected row region and splice it either at the start
6340 // or end of the region.
6341 let start = Point::new(rows.start.0, 0);
6342 let end = Point::new(
6343 rows.end.previous_row().0,
6344 buffer.line_len(rows.end.previous_row()),
6345 );
6346 let text = buffer
6347 .text_for_range(start..end)
6348 .chain(Some("\n"))
6349 .collect::<String>();
6350 let insert_location = if upwards {
6351 Point::new(rows.end.0, 0)
6352 } else {
6353 start
6354 };
6355 edits.push((insert_location..insert_location, text));
6356 } else {
6357 // duplicate character-wise
6358 let start = selection.start;
6359 let end = selection.end;
6360 let text = buffer.text_for_range(start..end).collect::<String>();
6361 edits.push((selection.end..selection.end, text));
6362 }
6363 }
6364
6365 self.transact(cx, |this, cx| {
6366 this.buffer.update(cx, |buffer, cx| {
6367 buffer.edit(edits, None, cx);
6368 });
6369
6370 this.request_autoscroll(Autoscroll::fit(), cx);
6371 });
6372 }
6373
6374 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6375 self.duplicate(true, true, cx);
6376 }
6377
6378 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6379 self.duplicate(false, true, cx);
6380 }
6381
6382 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6383 self.duplicate(false, false, cx);
6384 }
6385
6386 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6387 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6388 let buffer = self.buffer.read(cx).snapshot(cx);
6389
6390 let mut edits = Vec::new();
6391 let mut unfold_ranges = Vec::new();
6392 let mut refold_creases = Vec::new();
6393
6394 let selections = self.selections.all::<Point>(cx);
6395 let mut selections = selections.iter().peekable();
6396 let mut contiguous_row_selections = Vec::new();
6397 let mut new_selections = Vec::new();
6398
6399 while let Some(selection) = selections.next() {
6400 // Find all the selections that span a contiguous row range
6401 let (start_row, end_row) = consume_contiguous_rows(
6402 &mut contiguous_row_selections,
6403 selection,
6404 &display_map,
6405 &mut selections,
6406 );
6407
6408 // Move the text spanned by the row range to be before the line preceding the row range
6409 if start_row.0 > 0 {
6410 let range_to_move = Point::new(
6411 start_row.previous_row().0,
6412 buffer.line_len(start_row.previous_row()),
6413 )
6414 ..Point::new(
6415 end_row.previous_row().0,
6416 buffer.line_len(end_row.previous_row()),
6417 );
6418 let insertion_point = display_map
6419 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6420 .0;
6421
6422 // Don't move lines across excerpts
6423 if buffer
6424 .excerpt_boundaries_in_range((
6425 Bound::Excluded(insertion_point),
6426 Bound::Included(range_to_move.end),
6427 ))
6428 .next()
6429 .is_none()
6430 {
6431 let text = buffer
6432 .text_for_range(range_to_move.clone())
6433 .flat_map(|s| s.chars())
6434 .skip(1)
6435 .chain(['\n'])
6436 .collect::<String>();
6437
6438 edits.push((
6439 buffer.anchor_after(range_to_move.start)
6440 ..buffer.anchor_before(range_to_move.end),
6441 String::new(),
6442 ));
6443 let insertion_anchor = buffer.anchor_after(insertion_point);
6444 edits.push((insertion_anchor..insertion_anchor, text));
6445
6446 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6447
6448 // Move selections up
6449 new_selections.extend(contiguous_row_selections.drain(..).map(
6450 |mut selection| {
6451 selection.start.row -= row_delta;
6452 selection.end.row -= row_delta;
6453 selection
6454 },
6455 ));
6456
6457 // Move folds up
6458 unfold_ranges.push(range_to_move.clone());
6459 for fold in display_map.folds_in_range(
6460 buffer.anchor_before(range_to_move.start)
6461 ..buffer.anchor_after(range_to_move.end),
6462 ) {
6463 let mut start = fold.range.start.to_point(&buffer);
6464 let mut end = fold.range.end.to_point(&buffer);
6465 start.row -= row_delta;
6466 end.row -= row_delta;
6467 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6468 }
6469 }
6470 }
6471
6472 // If we didn't move line(s), preserve the existing selections
6473 new_selections.append(&mut contiguous_row_selections);
6474 }
6475
6476 self.transact(cx, |this, cx| {
6477 this.unfold_ranges(&unfold_ranges, true, true, cx);
6478 this.buffer.update(cx, |buffer, cx| {
6479 for (range, text) in edits {
6480 buffer.edit([(range, text)], None, cx);
6481 }
6482 });
6483 this.fold_creases(refold_creases, true, cx);
6484 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6485 s.select(new_selections);
6486 })
6487 });
6488 }
6489
6490 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6491 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6492 let buffer = self.buffer.read(cx).snapshot(cx);
6493
6494 let mut edits = Vec::new();
6495 let mut unfold_ranges = Vec::new();
6496 let mut refold_creases = Vec::new();
6497
6498 let selections = self.selections.all::<Point>(cx);
6499 let mut selections = selections.iter().peekable();
6500 let mut contiguous_row_selections = Vec::new();
6501 let mut new_selections = Vec::new();
6502
6503 while let Some(selection) = selections.next() {
6504 // Find all the selections that span a contiguous row range
6505 let (start_row, end_row) = consume_contiguous_rows(
6506 &mut contiguous_row_selections,
6507 selection,
6508 &display_map,
6509 &mut selections,
6510 );
6511
6512 // Move the text spanned by the row range to be after the last line of the row range
6513 if end_row.0 <= buffer.max_point().row {
6514 let range_to_move =
6515 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6516 let insertion_point = display_map
6517 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6518 .0;
6519
6520 // Don't move lines across excerpt boundaries
6521 if buffer
6522 .excerpt_boundaries_in_range((
6523 Bound::Excluded(range_to_move.start),
6524 Bound::Included(insertion_point),
6525 ))
6526 .next()
6527 .is_none()
6528 {
6529 let mut text = String::from("\n");
6530 text.extend(buffer.text_for_range(range_to_move.clone()));
6531 text.pop(); // Drop trailing newline
6532 edits.push((
6533 buffer.anchor_after(range_to_move.start)
6534 ..buffer.anchor_before(range_to_move.end),
6535 String::new(),
6536 ));
6537 let insertion_anchor = buffer.anchor_after(insertion_point);
6538 edits.push((insertion_anchor..insertion_anchor, text));
6539
6540 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6541
6542 // Move selections down
6543 new_selections.extend(contiguous_row_selections.drain(..).map(
6544 |mut selection| {
6545 selection.start.row += row_delta;
6546 selection.end.row += row_delta;
6547 selection
6548 },
6549 ));
6550
6551 // Move folds down
6552 unfold_ranges.push(range_to_move.clone());
6553 for fold in display_map.folds_in_range(
6554 buffer.anchor_before(range_to_move.start)
6555 ..buffer.anchor_after(range_to_move.end),
6556 ) {
6557 let mut start = fold.range.start.to_point(&buffer);
6558 let mut end = fold.range.end.to_point(&buffer);
6559 start.row += row_delta;
6560 end.row += row_delta;
6561 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6562 }
6563 }
6564 }
6565
6566 // If we didn't move line(s), preserve the existing selections
6567 new_selections.append(&mut contiguous_row_selections);
6568 }
6569
6570 self.transact(cx, |this, cx| {
6571 this.unfold_ranges(&unfold_ranges, true, true, cx);
6572 this.buffer.update(cx, |buffer, cx| {
6573 for (range, text) in edits {
6574 buffer.edit([(range, text)], None, cx);
6575 }
6576 });
6577 this.fold_creases(refold_creases, true, cx);
6578 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6579 });
6580 }
6581
6582 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6583 let text_layout_details = &self.text_layout_details(cx);
6584 self.transact(cx, |this, cx| {
6585 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6586 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6587 let line_mode = s.line_mode;
6588 s.move_with(|display_map, selection| {
6589 if !selection.is_empty() || line_mode {
6590 return;
6591 }
6592
6593 let mut head = selection.head();
6594 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6595 if head.column() == display_map.line_len(head.row()) {
6596 transpose_offset = display_map
6597 .buffer_snapshot
6598 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6599 }
6600
6601 if transpose_offset == 0 {
6602 return;
6603 }
6604
6605 *head.column_mut() += 1;
6606 head = display_map.clip_point(head, Bias::Right);
6607 let goal = SelectionGoal::HorizontalPosition(
6608 display_map
6609 .x_for_display_point(head, text_layout_details)
6610 .into(),
6611 );
6612 selection.collapse_to(head, goal);
6613
6614 let transpose_start = display_map
6615 .buffer_snapshot
6616 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6617 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6618 let transpose_end = display_map
6619 .buffer_snapshot
6620 .clip_offset(transpose_offset + 1, Bias::Right);
6621 if let Some(ch) =
6622 display_map.buffer_snapshot.chars_at(transpose_start).next()
6623 {
6624 edits.push((transpose_start..transpose_offset, String::new()));
6625 edits.push((transpose_end..transpose_end, ch.to_string()));
6626 }
6627 }
6628 });
6629 edits
6630 });
6631 this.buffer
6632 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6633 let selections = this.selections.all::<usize>(cx);
6634 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6635 s.select(selections);
6636 });
6637 });
6638 }
6639
6640 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6641 self.rewrap_impl(IsVimMode::No, cx)
6642 }
6643
6644 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6645 let buffer = self.buffer.read(cx).snapshot(cx);
6646 let selections = self.selections.all::<Point>(cx);
6647 let mut selections = selections.iter().peekable();
6648
6649 let mut edits = Vec::new();
6650 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6651
6652 while let Some(selection) = selections.next() {
6653 let mut start_row = selection.start.row;
6654 let mut end_row = selection.end.row;
6655
6656 // Skip selections that overlap with a range that has already been rewrapped.
6657 let selection_range = start_row..end_row;
6658 if rewrapped_row_ranges
6659 .iter()
6660 .any(|range| range.overlaps(&selection_range))
6661 {
6662 continue;
6663 }
6664
6665 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6666
6667 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6668 match language_scope.language_name().0.as_ref() {
6669 "Markdown" | "Plain Text" => {
6670 should_rewrap = true;
6671 }
6672 _ => {}
6673 }
6674 }
6675
6676 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6677
6678 // Since not all lines in the selection may be at the same indent
6679 // level, choose the indent size that is the most common between all
6680 // of the lines.
6681 //
6682 // If there is a tie, we use the deepest indent.
6683 let (indent_size, indent_end) = {
6684 let mut indent_size_occurrences = HashMap::default();
6685 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6686
6687 for row in start_row..=end_row {
6688 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6689 rows_by_indent_size.entry(indent).or_default().push(row);
6690 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6691 }
6692
6693 let indent_size = indent_size_occurrences
6694 .into_iter()
6695 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6696 .map(|(indent, _)| indent)
6697 .unwrap_or_default();
6698 let row = rows_by_indent_size[&indent_size][0];
6699 let indent_end = Point::new(row, indent_size.len);
6700
6701 (indent_size, indent_end)
6702 };
6703
6704 let mut line_prefix = indent_size.chars().collect::<String>();
6705
6706 if let Some(comment_prefix) =
6707 buffer
6708 .language_scope_at(selection.head())
6709 .and_then(|language| {
6710 language
6711 .line_comment_prefixes()
6712 .iter()
6713 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6714 .cloned()
6715 })
6716 {
6717 line_prefix.push_str(&comment_prefix);
6718 should_rewrap = true;
6719 }
6720
6721 if !should_rewrap {
6722 continue;
6723 }
6724
6725 if selection.is_empty() {
6726 'expand_upwards: while start_row > 0 {
6727 let prev_row = start_row - 1;
6728 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6729 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6730 {
6731 start_row = prev_row;
6732 } else {
6733 break 'expand_upwards;
6734 }
6735 }
6736
6737 'expand_downwards: while end_row < buffer.max_point().row {
6738 let next_row = end_row + 1;
6739 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6740 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6741 {
6742 end_row = next_row;
6743 } else {
6744 break 'expand_downwards;
6745 }
6746 }
6747 }
6748
6749 let start = Point::new(start_row, 0);
6750 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6751 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6752 let Some(lines_without_prefixes) = selection_text
6753 .lines()
6754 .map(|line| {
6755 line.strip_prefix(&line_prefix)
6756 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6757 .ok_or_else(|| {
6758 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6759 })
6760 })
6761 .collect::<Result<Vec<_>, _>>()
6762 .log_err()
6763 else {
6764 continue;
6765 };
6766
6767 let wrap_column = buffer
6768 .settings_at(Point::new(start_row, 0), cx)
6769 .preferred_line_length as usize;
6770 let wrapped_text = wrap_with_prefix(
6771 line_prefix,
6772 lines_without_prefixes.join(" "),
6773 wrap_column,
6774 tab_size,
6775 );
6776
6777 // TODO: should always use char-based diff while still supporting cursor behavior that
6778 // matches vim.
6779 let diff = match is_vim_mode {
6780 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6781 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6782 };
6783 let mut offset = start.to_offset(&buffer);
6784 let mut moved_since_edit = true;
6785
6786 for change in diff.iter_all_changes() {
6787 let value = change.value();
6788 match change.tag() {
6789 ChangeTag::Equal => {
6790 offset += value.len();
6791 moved_since_edit = true;
6792 }
6793 ChangeTag::Delete => {
6794 let start = buffer.anchor_after(offset);
6795 let end = buffer.anchor_before(offset + value.len());
6796
6797 if moved_since_edit {
6798 edits.push((start..end, String::new()));
6799 } else {
6800 edits.last_mut().unwrap().0.end = end;
6801 }
6802
6803 offset += value.len();
6804 moved_since_edit = false;
6805 }
6806 ChangeTag::Insert => {
6807 if moved_since_edit {
6808 let anchor = buffer.anchor_after(offset);
6809 edits.push((anchor..anchor, value.to_string()));
6810 } else {
6811 edits.last_mut().unwrap().1.push_str(value);
6812 }
6813
6814 moved_since_edit = false;
6815 }
6816 }
6817 }
6818
6819 rewrapped_row_ranges.push(start_row..=end_row);
6820 }
6821
6822 self.buffer
6823 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6824 }
6825
6826 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6827 let mut text = String::new();
6828 let buffer = self.buffer.read(cx).snapshot(cx);
6829 let mut selections = self.selections.all::<Point>(cx);
6830 let mut clipboard_selections = Vec::with_capacity(selections.len());
6831 {
6832 let max_point = buffer.max_point();
6833 let mut is_first = true;
6834 for selection in &mut selections {
6835 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6836 if is_entire_line {
6837 selection.start = Point::new(selection.start.row, 0);
6838 if !selection.is_empty() && selection.end.column == 0 {
6839 selection.end = cmp::min(max_point, selection.end);
6840 } else {
6841 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6842 }
6843 selection.goal = SelectionGoal::None;
6844 }
6845 if is_first {
6846 is_first = false;
6847 } else {
6848 text += "\n";
6849 }
6850 let mut len = 0;
6851 for chunk in buffer.text_for_range(selection.start..selection.end) {
6852 text.push_str(chunk);
6853 len += chunk.len();
6854 }
6855 clipboard_selections.push(ClipboardSelection {
6856 len,
6857 is_entire_line,
6858 first_line_indent: buffer
6859 .indent_size_for_line(MultiBufferRow(selection.start.row))
6860 .len,
6861 });
6862 }
6863 }
6864
6865 self.transact(cx, |this, cx| {
6866 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6867 s.select(selections);
6868 });
6869 this.insert("", cx);
6870 });
6871 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6872 }
6873
6874 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6875 let item = self.cut_common(cx);
6876 cx.write_to_clipboard(item);
6877 }
6878
6879 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6880 self.change_selections(None, cx, |s| {
6881 s.move_with(|snapshot, sel| {
6882 if sel.is_empty() {
6883 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6884 }
6885 });
6886 });
6887 let item = self.cut_common(cx);
6888 cx.set_global(KillRing(item))
6889 }
6890
6891 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6892 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6893 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6894 (kill_ring.text().to_string(), kill_ring.metadata_json())
6895 } else {
6896 return;
6897 }
6898 } else {
6899 return;
6900 };
6901 self.do_paste(&text, metadata, false, cx);
6902 }
6903
6904 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6905 let selections = self.selections.all::<Point>(cx);
6906 let buffer = self.buffer.read(cx).read(cx);
6907 let mut text = String::new();
6908
6909 let mut clipboard_selections = Vec::with_capacity(selections.len());
6910 {
6911 let max_point = buffer.max_point();
6912 let mut is_first = true;
6913 for selection in selections.iter() {
6914 let mut start = selection.start;
6915 let mut end = selection.end;
6916 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6917 if is_entire_line {
6918 start = Point::new(start.row, 0);
6919 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6920 }
6921 if is_first {
6922 is_first = false;
6923 } else {
6924 text += "\n";
6925 }
6926 let mut len = 0;
6927 for chunk in buffer.text_for_range(start..end) {
6928 text.push_str(chunk);
6929 len += chunk.len();
6930 }
6931 clipboard_selections.push(ClipboardSelection {
6932 len,
6933 is_entire_line,
6934 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6935 });
6936 }
6937 }
6938
6939 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6940 text,
6941 clipboard_selections,
6942 ));
6943 }
6944
6945 pub fn do_paste(
6946 &mut self,
6947 text: &String,
6948 clipboard_selections: Option<Vec<ClipboardSelection>>,
6949 handle_entire_lines: bool,
6950 cx: &mut ViewContext<Self>,
6951 ) {
6952 if self.read_only(cx) {
6953 return;
6954 }
6955
6956 let clipboard_text = Cow::Borrowed(text);
6957
6958 self.transact(cx, |this, cx| {
6959 if let Some(mut clipboard_selections) = clipboard_selections {
6960 let old_selections = this.selections.all::<usize>(cx);
6961 let all_selections_were_entire_line =
6962 clipboard_selections.iter().all(|s| s.is_entire_line);
6963 let first_selection_indent_column =
6964 clipboard_selections.first().map(|s| s.first_line_indent);
6965 if clipboard_selections.len() != old_selections.len() {
6966 clipboard_selections.drain(..);
6967 }
6968 let cursor_offset = this.selections.last::<usize>(cx).head();
6969 let mut auto_indent_on_paste = true;
6970
6971 this.buffer.update(cx, |buffer, cx| {
6972 let snapshot = buffer.read(cx);
6973 auto_indent_on_paste =
6974 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6975
6976 let mut start_offset = 0;
6977 let mut edits = Vec::new();
6978 let mut original_indent_columns = Vec::new();
6979 for (ix, selection) in old_selections.iter().enumerate() {
6980 let to_insert;
6981 let entire_line;
6982 let original_indent_column;
6983 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6984 let end_offset = start_offset + clipboard_selection.len;
6985 to_insert = &clipboard_text[start_offset..end_offset];
6986 entire_line = clipboard_selection.is_entire_line;
6987 start_offset = end_offset + 1;
6988 original_indent_column = Some(clipboard_selection.first_line_indent);
6989 } else {
6990 to_insert = clipboard_text.as_str();
6991 entire_line = all_selections_were_entire_line;
6992 original_indent_column = first_selection_indent_column
6993 }
6994
6995 // If the corresponding selection was empty when this slice of the
6996 // clipboard text was written, then the entire line containing the
6997 // selection was copied. If this selection is also currently empty,
6998 // then paste the line before the current line of the buffer.
6999 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7000 let column = selection.start.to_point(&snapshot).column as usize;
7001 let line_start = selection.start - column;
7002 line_start..line_start
7003 } else {
7004 selection.range()
7005 };
7006
7007 edits.push((range, to_insert));
7008 original_indent_columns.extend(original_indent_column);
7009 }
7010 drop(snapshot);
7011
7012 buffer.edit(
7013 edits,
7014 if auto_indent_on_paste {
7015 Some(AutoindentMode::Block {
7016 original_indent_columns,
7017 })
7018 } else {
7019 None
7020 },
7021 cx,
7022 );
7023 });
7024
7025 let selections = this.selections.all::<usize>(cx);
7026 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7027 } else {
7028 this.insert(&clipboard_text, cx);
7029 }
7030 });
7031 }
7032
7033 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7034 if let Some(item) = cx.read_from_clipboard() {
7035 let entries = item.entries();
7036
7037 match entries.first() {
7038 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7039 // of all the pasted entries.
7040 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7041 .do_paste(
7042 clipboard_string.text(),
7043 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7044 true,
7045 cx,
7046 ),
7047 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7048 }
7049 }
7050 }
7051
7052 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7053 if self.read_only(cx) {
7054 return;
7055 }
7056
7057 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7058 if let Some((selections, _)) =
7059 self.selection_history.transaction(transaction_id).cloned()
7060 {
7061 self.change_selections(None, cx, |s| {
7062 s.select_anchors(selections.to_vec());
7063 });
7064 }
7065 self.request_autoscroll(Autoscroll::fit(), cx);
7066 self.unmark_text(cx);
7067 self.refresh_inline_completion(true, false, cx);
7068 cx.emit(EditorEvent::Edited { transaction_id });
7069 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7070 }
7071 }
7072
7073 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7074 if self.read_only(cx) {
7075 return;
7076 }
7077
7078 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7079 if let Some((_, Some(selections))) =
7080 self.selection_history.transaction(transaction_id).cloned()
7081 {
7082 self.change_selections(None, cx, |s| {
7083 s.select_anchors(selections.to_vec());
7084 });
7085 }
7086 self.request_autoscroll(Autoscroll::fit(), cx);
7087 self.unmark_text(cx);
7088 self.refresh_inline_completion(true, false, cx);
7089 cx.emit(EditorEvent::Edited { transaction_id });
7090 }
7091 }
7092
7093 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7094 self.buffer
7095 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7096 }
7097
7098 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7099 self.buffer
7100 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7101 }
7102
7103 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7104 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7105 let line_mode = s.line_mode;
7106 s.move_with(|map, selection| {
7107 let cursor = if selection.is_empty() && !line_mode {
7108 movement::left(map, selection.start)
7109 } else {
7110 selection.start
7111 };
7112 selection.collapse_to(cursor, SelectionGoal::None);
7113 });
7114 })
7115 }
7116
7117 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7118 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7119 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7120 })
7121 }
7122
7123 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7124 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7125 let line_mode = s.line_mode;
7126 s.move_with(|map, selection| {
7127 let cursor = if selection.is_empty() && !line_mode {
7128 movement::right(map, selection.end)
7129 } else {
7130 selection.end
7131 };
7132 selection.collapse_to(cursor, SelectionGoal::None)
7133 });
7134 })
7135 }
7136
7137 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7138 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7139 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7140 })
7141 }
7142
7143 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7144 if self.take_rename(true, cx).is_some() {
7145 return;
7146 }
7147
7148 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7149 cx.propagate();
7150 return;
7151 }
7152
7153 let text_layout_details = &self.text_layout_details(cx);
7154 let selection_count = self.selections.count();
7155 let first_selection = self.selections.first_anchor();
7156
7157 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7158 let line_mode = s.line_mode;
7159 s.move_with(|map, selection| {
7160 if !selection.is_empty() && !line_mode {
7161 selection.goal = SelectionGoal::None;
7162 }
7163 let (cursor, goal) = movement::up(
7164 map,
7165 selection.start,
7166 selection.goal,
7167 false,
7168 text_layout_details,
7169 );
7170 selection.collapse_to(cursor, goal);
7171 });
7172 });
7173
7174 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7175 {
7176 cx.propagate();
7177 }
7178 }
7179
7180 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7181 if self.take_rename(true, cx).is_some() {
7182 return;
7183 }
7184
7185 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7186 cx.propagate();
7187 return;
7188 }
7189
7190 let text_layout_details = &self.text_layout_details(cx);
7191
7192 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7193 let line_mode = s.line_mode;
7194 s.move_with(|map, selection| {
7195 if !selection.is_empty() && !line_mode {
7196 selection.goal = SelectionGoal::None;
7197 }
7198 let (cursor, goal) = movement::up_by_rows(
7199 map,
7200 selection.start,
7201 action.lines,
7202 selection.goal,
7203 false,
7204 text_layout_details,
7205 );
7206 selection.collapse_to(cursor, goal);
7207 });
7208 })
7209 }
7210
7211 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7212 if self.take_rename(true, cx).is_some() {
7213 return;
7214 }
7215
7216 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7217 cx.propagate();
7218 return;
7219 }
7220
7221 let text_layout_details = &self.text_layout_details(cx);
7222
7223 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7224 let line_mode = s.line_mode;
7225 s.move_with(|map, selection| {
7226 if !selection.is_empty() && !line_mode {
7227 selection.goal = SelectionGoal::None;
7228 }
7229 let (cursor, goal) = movement::down_by_rows(
7230 map,
7231 selection.start,
7232 action.lines,
7233 selection.goal,
7234 false,
7235 text_layout_details,
7236 );
7237 selection.collapse_to(cursor, goal);
7238 });
7239 })
7240 }
7241
7242 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7243 let text_layout_details = &self.text_layout_details(cx);
7244 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7245 s.move_heads_with(|map, head, goal| {
7246 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7247 })
7248 })
7249 }
7250
7251 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7252 let text_layout_details = &self.text_layout_details(cx);
7253 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7254 s.move_heads_with(|map, head, goal| {
7255 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7256 })
7257 })
7258 }
7259
7260 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7261 let Some(row_count) = self.visible_row_count() else {
7262 return;
7263 };
7264
7265 let text_layout_details = &self.text_layout_details(cx);
7266
7267 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7268 s.move_heads_with(|map, head, goal| {
7269 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7270 })
7271 })
7272 }
7273
7274 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7275 if self.take_rename(true, cx).is_some() {
7276 return;
7277 }
7278
7279 if self
7280 .context_menu
7281 .borrow_mut()
7282 .as_mut()
7283 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7284 .unwrap_or(false)
7285 {
7286 return;
7287 }
7288
7289 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7290 cx.propagate();
7291 return;
7292 }
7293
7294 let Some(row_count) = self.visible_row_count() else {
7295 return;
7296 };
7297
7298 let autoscroll = if action.center_cursor {
7299 Autoscroll::center()
7300 } else {
7301 Autoscroll::fit()
7302 };
7303
7304 let text_layout_details = &self.text_layout_details(cx);
7305
7306 self.change_selections(Some(autoscroll), cx, |s| {
7307 let line_mode = s.line_mode;
7308 s.move_with(|map, selection| {
7309 if !selection.is_empty() && !line_mode {
7310 selection.goal = SelectionGoal::None;
7311 }
7312 let (cursor, goal) = movement::up_by_rows(
7313 map,
7314 selection.end,
7315 row_count,
7316 selection.goal,
7317 false,
7318 text_layout_details,
7319 );
7320 selection.collapse_to(cursor, goal);
7321 });
7322 });
7323 }
7324
7325 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7326 let text_layout_details = &self.text_layout_details(cx);
7327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7328 s.move_heads_with(|map, head, goal| {
7329 movement::up(map, head, goal, false, text_layout_details)
7330 })
7331 })
7332 }
7333
7334 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7335 self.take_rename(true, cx);
7336
7337 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7338 cx.propagate();
7339 return;
7340 }
7341
7342 let text_layout_details = &self.text_layout_details(cx);
7343 let selection_count = self.selections.count();
7344 let first_selection = self.selections.first_anchor();
7345
7346 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7347 let line_mode = s.line_mode;
7348 s.move_with(|map, selection| {
7349 if !selection.is_empty() && !line_mode {
7350 selection.goal = SelectionGoal::None;
7351 }
7352 let (cursor, goal) = movement::down(
7353 map,
7354 selection.end,
7355 selection.goal,
7356 false,
7357 text_layout_details,
7358 );
7359 selection.collapse_to(cursor, goal);
7360 });
7361 });
7362
7363 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7364 {
7365 cx.propagate();
7366 }
7367 }
7368
7369 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7370 let Some(row_count) = self.visible_row_count() else {
7371 return;
7372 };
7373
7374 let text_layout_details = &self.text_layout_details(cx);
7375
7376 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7377 s.move_heads_with(|map, head, goal| {
7378 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7379 })
7380 })
7381 }
7382
7383 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7384 if self.take_rename(true, cx).is_some() {
7385 return;
7386 }
7387
7388 if self
7389 .context_menu
7390 .borrow_mut()
7391 .as_mut()
7392 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7393 .unwrap_or(false)
7394 {
7395 return;
7396 }
7397
7398 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7399 cx.propagate();
7400 return;
7401 }
7402
7403 let Some(row_count) = self.visible_row_count() else {
7404 return;
7405 };
7406
7407 let autoscroll = if action.center_cursor {
7408 Autoscroll::center()
7409 } else {
7410 Autoscroll::fit()
7411 };
7412
7413 let text_layout_details = &self.text_layout_details(cx);
7414 self.change_selections(Some(autoscroll), cx, |s| {
7415 let line_mode = s.line_mode;
7416 s.move_with(|map, selection| {
7417 if !selection.is_empty() && !line_mode {
7418 selection.goal = SelectionGoal::None;
7419 }
7420 let (cursor, goal) = movement::down_by_rows(
7421 map,
7422 selection.end,
7423 row_count,
7424 selection.goal,
7425 false,
7426 text_layout_details,
7427 );
7428 selection.collapse_to(cursor, goal);
7429 });
7430 });
7431 }
7432
7433 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7434 let text_layout_details = &self.text_layout_details(cx);
7435 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7436 s.move_heads_with(|map, head, goal| {
7437 movement::down(map, head, goal, false, text_layout_details)
7438 })
7439 });
7440 }
7441
7442 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7443 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7444 context_menu.select_first(self.completion_provider.as_deref(), cx);
7445 }
7446 }
7447
7448 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7449 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7450 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7451 }
7452 }
7453
7454 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7455 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7456 context_menu.select_next(self.completion_provider.as_deref(), cx);
7457 }
7458 }
7459
7460 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7461 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7462 context_menu.select_last(self.completion_provider.as_deref(), cx);
7463 }
7464 }
7465
7466 pub fn move_to_previous_word_start(
7467 &mut self,
7468 _: &MoveToPreviousWordStart,
7469 cx: &mut ViewContext<Self>,
7470 ) {
7471 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7472 s.move_cursors_with(|map, head, _| {
7473 (
7474 movement::previous_word_start(map, head),
7475 SelectionGoal::None,
7476 )
7477 });
7478 })
7479 }
7480
7481 pub fn move_to_previous_subword_start(
7482 &mut self,
7483 _: &MoveToPreviousSubwordStart,
7484 cx: &mut ViewContext<Self>,
7485 ) {
7486 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7487 s.move_cursors_with(|map, head, _| {
7488 (
7489 movement::previous_subword_start(map, head),
7490 SelectionGoal::None,
7491 )
7492 });
7493 })
7494 }
7495
7496 pub fn select_to_previous_word_start(
7497 &mut self,
7498 _: &SelectToPreviousWordStart,
7499 cx: &mut ViewContext<Self>,
7500 ) {
7501 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7502 s.move_heads_with(|map, head, _| {
7503 (
7504 movement::previous_word_start(map, head),
7505 SelectionGoal::None,
7506 )
7507 });
7508 })
7509 }
7510
7511 pub fn select_to_previous_subword_start(
7512 &mut self,
7513 _: &SelectToPreviousSubwordStart,
7514 cx: &mut ViewContext<Self>,
7515 ) {
7516 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7517 s.move_heads_with(|map, head, _| {
7518 (
7519 movement::previous_subword_start(map, head),
7520 SelectionGoal::None,
7521 )
7522 });
7523 })
7524 }
7525
7526 pub fn delete_to_previous_word_start(
7527 &mut self,
7528 action: &DeleteToPreviousWordStart,
7529 cx: &mut ViewContext<Self>,
7530 ) {
7531 self.transact(cx, |this, cx| {
7532 this.select_autoclose_pair(cx);
7533 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7534 let line_mode = s.line_mode;
7535 s.move_with(|map, selection| {
7536 if selection.is_empty() && !line_mode {
7537 let cursor = if action.ignore_newlines {
7538 movement::previous_word_start(map, selection.head())
7539 } else {
7540 movement::previous_word_start_or_newline(map, selection.head())
7541 };
7542 selection.set_head(cursor, SelectionGoal::None);
7543 }
7544 });
7545 });
7546 this.insert("", cx);
7547 });
7548 }
7549
7550 pub fn delete_to_previous_subword_start(
7551 &mut self,
7552 _: &DeleteToPreviousSubwordStart,
7553 cx: &mut ViewContext<Self>,
7554 ) {
7555 self.transact(cx, |this, cx| {
7556 this.select_autoclose_pair(cx);
7557 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7558 let line_mode = s.line_mode;
7559 s.move_with(|map, selection| {
7560 if selection.is_empty() && !line_mode {
7561 let cursor = movement::previous_subword_start(map, selection.head());
7562 selection.set_head(cursor, SelectionGoal::None);
7563 }
7564 });
7565 });
7566 this.insert("", cx);
7567 });
7568 }
7569
7570 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7571 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7572 s.move_cursors_with(|map, head, _| {
7573 (movement::next_word_end(map, head), SelectionGoal::None)
7574 });
7575 })
7576 }
7577
7578 pub fn move_to_next_subword_end(
7579 &mut self,
7580 _: &MoveToNextSubwordEnd,
7581 cx: &mut ViewContext<Self>,
7582 ) {
7583 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7584 s.move_cursors_with(|map, head, _| {
7585 (movement::next_subword_end(map, head), SelectionGoal::None)
7586 });
7587 })
7588 }
7589
7590 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7591 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7592 s.move_heads_with(|map, head, _| {
7593 (movement::next_word_end(map, head), SelectionGoal::None)
7594 });
7595 })
7596 }
7597
7598 pub fn select_to_next_subword_end(
7599 &mut self,
7600 _: &SelectToNextSubwordEnd,
7601 cx: &mut ViewContext<Self>,
7602 ) {
7603 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7604 s.move_heads_with(|map, head, _| {
7605 (movement::next_subword_end(map, head), SelectionGoal::None)
7606 });
7607 })
7608 }
7609
7610 pub fn delete_to_next_word_end(
7611 &mut self,
7612 action: &DeleteToNextWordEnd,
7613 cx: &mut ViewContext<Self>,
7614 ) {
7615 self.transact(cx, |this, cx| {
7616 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7617 let line_mode = s.line_mode;
7618 s.move_with(|map, selection| {
7619 if selection.is_empty() && !line_mode {
7620 let cursor = if action.ignore_newlines {
7621 movement::next_word_end(map, selection.head())
7622 } else {
7623 movement::next_word_end_or_newline(map, selection.head())
7624 };
7625 selection.set_head(cursor, SelectionGoal::None);
7626 }
7627 });
7628 });
7629 this.insert("", cx);
7630 });
7631 }
7632
7633 pub fn delete_to_next_subword_end(
7634 &mut self,
7635 _: &DeleteToNextSubwordEnd,
7636 cx: &mut ViewContext<Self>,
7637 ) {
7638 self.transact(cx, |this, cx| {
7639 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7640 s.move_with(|map, selection| {
7641 if selection.is_empty() {
7642 let cursor = movement::next_subword_end(map, selection.head());
7643 selection.set_head(cursor, SelectionGoal::None);
7644 }
7645 });
7646 });
7647 this.insert("", cx);
7648 });
7649 }
7650
7651 pub fn move_to_beginning_of_line(
7652 &mut self,
7653 action: &MoveToBeginningOfLine,
7654 cx: &mut ViewContext<Self>,
7655 ) {
7656 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7657 s.move_cursors_with(|map, head, _| {
7658 (
7659 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7660 SelectionGoal::None,
7661 )
7662 });
7663 })
7664 }
7665
7666 pub fn select_to_beginning_of_line(
7667 &mut self,
7668 action: &SelectToBeginningOfLine,
7669 cx: &mut ViewContext<Self>,
7670 ) {
7671 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7672 s.move_heads_with(|map, head, _| {
7673 (
7674 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7675 SelectionGoal::None,
7676 )
7677 });
7678 });
7679 }
7680
7681 pub fn delete_to_beginning_of_line(
7682 &mut self,
7683 _: &DeleteToBeginningOfLine,
7684 cx: &mut ViewContext<Self>,
7685 ) {
7686 self.transact(cx, |this, cx| {
7687 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7688 s.move_with(|_, selection| {
7689 selection.reversed = true;
7690 });
7691 });
7692
7693 this.select_to_beginning_of_line(
7694 &SelectToBeginningOfLine {
7695 stop_at_soft_wraps: false,
7696 },
7697 cx,
7698 );
7699 this.backspace(&Backspace, cx);
7700 });
7701 }
7702
7703 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7704 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7705 s.move_cursors_with(|map, head, _| {
7706 (
7707 movement::line_end(map, head, action.stop_at_soft_wraps),
7708 SelectionGoal::None,
7709 )
7710 });
7711 })
7712 }
7713
7714 pub fn select_to_end_of_line(
7715 &mut self,
7716 action: &SelectToEndOfLine,
7717 cx: &mut ViewContext<Self>,
7718 ) {
7719 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7720 s.move_heads_with(|map, head, _| {
7721 (
7722 movement::line_end(map, head, action.stop_at_soft_wraps),
7723 SelectionGoal::None,
7724 )
7725 });
7726 })
7727 }
7728
7729 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7730 self.transact(cx, |this, cx| {
7731 this.select_to_end_of_line(
7732 &SelectToEndOfLine {
7733 stop_at_soft_wraps: false,
7734 },
7735 cx,
7736 );
7737 this.delete(&Delete, cx);
7738 });
7739 }
7740
7741 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7742 self.transact(cx, |this, cx| {
7743 this.select_to_end_of_line(
7744 &SelectToEndOfLine {
7745 stop_at_soft_wraps: false,
7746 },
7747 cx,
7748 );
7749 this.cut(&Cut, cx);
7750 });
7751 }
7752
7753 pub fn move_to_start_of_paragraph(
7754 &mut self,
7755 _: &MoveToStartOfParagraph,
7756 cx: &mut ViewContext<Self>,
7757 ) {
7758 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7759 cx.propagate();
7760 return;
7761 }
7762
7763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7764 s.move_with(|map, selection| {
7765 selection.collapse_to(
7766 movement::start_of_paragraph(map, selection.head(), 1),
7767 SelectionGoal::None,
7768 )
7769 });
7770 })
7771 }
7772
7773 pub fn move_to_end_of_paragraph(
7774 &mut self,
7775 _: &MoveToEndOfParagraph,
7776 cx: &mut ViewContext<Self>,
7777 ) {
7778 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7779 cx.propagate();
7780 return;
7781 }
7782
7783 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7784 s.move_with(|map, selection| {
7785 selection.collapse_to(
7786 movement::end_of_paragraph(map, selection.head(), 1),
7787 SelectionGoal::None,
7788 )
7789 });
7790 })
7791 }
7792
7793 pub fn select_to_start_of_paragraph(
7794 &mut self,
7795 _: &SelectToStartOfParagraph,
7796 cx: &mut ViewContext<Self>,
7797 ) {
7798 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7799 cx.propagate();
7800 return;
7801 }
7802
7803 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7804 s.move_heads_with(|map, head, _| {
7805 (
7806 movement::start_of_paragraph(map, head, 1),
7807 SelectionGoal::None,
7808 )
7809 });
7810 })
7811 }
7812
7813 pub fn select_to_end_of_paragraph(
7814 &mut self,
7815 _: &SelectToEndOfParagraph,
7816 cx: &mut ViewContext<Self>,
7817 ) {
7818 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7819 cx.propagate();
7820 return;
7821 }
7822
7823 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7824 s.move_heads_with(|map, head, _| {
7825 (
7826 movement::end_of_paragraph(map, head, 1),
7827 SelectionGoal::None,
7828 )
7829 });
7830 })
7831 }
7832
7833 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7834 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7835 cx.propagate();
7836 return;
7837 }
7838
7839 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7840 s.select_ranges(vec![0..0]);
7841 });
7842 }
7843
7844 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7845 let mut selection = self.selections.last::<Point>(cx);
7846 selection.set_head(Point::zero(), SelectionGoal::None);
7847
7848 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7849 s.select(vec![selection]);
7850 });
7851 }
7852
7853 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7854 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7855 cx.propagate();
7856 return;
7857 }
7858
7859 let cursor = self.buffer.read(cx).read(cx).len();
7860 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7861 s.select_ranges(vec![cursor..cursor])
7862 });
7863 }
7864
7865 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7866 self.nav_history = nav_history;
7867 }
7868
7869 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7870 self.nav_history.as_ref()
7871 }
7872
7873 fn push_to_nav_history(
7874 &mut self,
7875 cursor_anchor: Anchor,
7876 new_position: Option<Point>,
7877 cx: &mut ViewContext<Self>,
7878 ) {
7879 if let Some(nav_history) = self.nav_history.as_mut() {
7880 let buffer = self.buffer.read(cx).read(cx);
7881 let cursor_position = cursor_anchor.to_point(&buffer);
7882 let scroll_state = self.scroll_manager.anchor();
7883 let scroll_top_row = scroll_state.top_row(&buffer);
7884 drop(buffer);
7885
7886 if let Some(new_position) = new_position {
7887 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7888 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7889 return;
7890 }
7891 }
7892
7893 nav_history.push(
7894 Some(NavigationData {
7895 cursor_anchor,
7896 cursor_position,
7897 scroll_anchor: scroll_state,
7898 scroll_top_row,
7899 }),
7900 cx,
7901 );
7902 }
7903 }
7904
7905 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7906 let buffer = self.buffer.read(cx).snapshot(cx);
7907 let mut selection = self.selections.first::<usize>(cx);
7908 selection.set_head(buffer.len(), SelectionGoal::None);
7909 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7910 s.select(vec![selection]);
7911 });
7912 }
7913
7914 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7915 let end = self.buffer.read(cx).read(cx).len();
7916 self.change_selections(None, cx, |s| {
7917 s.select_ranges(vec![0..end]);
7918 });
7919 }
7920
7921 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7922 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7923 let mut selections = self.selections.all::<Point>(cx);
7924 let max_point = display_map.buffer_snapshot.max_point();
7925 for selection in &mut selections {
7926 let rows = selection.spanned_rows(true, &display_map);
7927 selection.start = Point::new(rows.start.0, 0);
7928 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7929 selection.reversed = false;
7930 }
7931 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7932 s.select(selections);
7933 });
7934 }
7935
7936 pub fn split_selection_into_lines(
7937 &mut self,
7938 _: &SplitSelectionIntoLines,
7939 cx: &mut ViewContext<Self>,
7940 ) {
7941 let mut to_unfold = Vec::new();
7942 let mut new_selection_ranges = Vec::new();
7943 {
7944 let selections = self.selections.all::<Point>(cx);
7945 let buffer = self.buffer.read(cx).read(cx);
7946 for selection in selections {
7947 for row in selection.start.row..selection.end.row {
7948 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7949 new_selection_ranges.push(cursor..cursor);
7950 }
7951 new_selection_ranges.push(selection.end..selection.end);
7952 to_unfold.push(selection.start..selection.end);
7953 }
7954 }
7955 self.unfold_ranges(&to_unfold, true, true, cx);
7956 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7957 s.select_ranges(new_selection_ranges);
7958 });
7959 }
7960
7961 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7962 self.add_selection(true, cx);
7963 }
7964
7965 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7966 self.add_selection(false, cx);
7967 }
7968
7969 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7970 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7971 let mut selections = self.selections.all::<Point>(cx);
7972 let text_layout_details = self.text_layout_details(cx);
7973 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7974 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7975 let range = oldest_selection.display_range(&display_map).sorted();
7976
7977 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7978 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7979 let positions = start_x.min(end_x)..start_x.max(end_x);
7980
7981 selections.clear();
7982 let mut stack = Vec::new();
7983 for row in range.start.row().0..=range.end.row().0 {
7984 if let Some(selection) = self.selections.build_columnar_selection(
7985 &display_map,
7986 DisplayRow(row),
7987 &positions,
7988 oldest_selection.reversed,
7989 &text_layout_details,
7990 ) {
7991 stack.push(selection.id);
7992 selections.push(selection);
7993 }
7994 }
7995
7996 if above {
7997 stack.reverse();
7998 }
7999
8000 AddSelectionsState { above, stack }
8001 });
8002
8003 let last_added_selection = *state.stack.last().unwrap();
8004 let mut new_selections = Vec::new();
8005 if above == state.above {
8006 let end_row = if above {
8007 DisplayRow(0)
8008 } else {
8009 display_map.max_point().row()
8010 };
8011
8012 'outer: for selection in selections {
8013 if selection.id == last_added_selection {
8014 let range = selection.display_range(&display_map).sorted();
8015 debug_assert_eq!(range.start.row(), range.end.row());
8016 let mut row = range.start.row();
8017 let positions =
8018 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8019 px(start)..px(end)
8020 } else {
8021 let start_x =
8022 display_map.x_for_display_point(range.start, &text_layout_details);
8023 let end_x =
8024 display_map.x_for_display_point(range.end, &text_layout_details);
8025 start_x.min(end_x)..start_x.max(end_x)
8026 };
8027
8028 while row != end_row {
8029 if above {
8030 row.0 -= 1;
8031 } else {
8032 row.0 += 1;
8033 }
8034
8035 if let Some(new_selection) = self.selections.build_columnar_selection(
8036 &display_map,
8037 row,
8038 &positions,
8039 selection.reversed,
8040 &text_layout_details,
8041 ) {
8042 state.stack.push(new_selection.id);
8043 if above {
8044 new_selections.push(new_selection);
8045 new_selections.push(selection);
8046 } else {
8047 new_selections.push(selection);
8048 new_selections.push(new_selection);
8049 }
8050
8051 continue 'outer;
8052 }
8053 }
8054 }
8055
8056 new_selections.push(selection);
8057 }
8058 } else {
8059 new_selections = selections;
8060 new_selections.retain(|s| s.id != last_added_selection);
8061 state.stack.pop();
8062 }
8063
8064 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8065 s.select(new_selections);
8066 });
8067 if state.stack.len() > 1 {
8068 self.add_selections_state = Some(state);
8069 }
8070 }
8071
8072 pub fn select_next_match_internal(
8073 &mut self,
8074 display_map: &DisplaySnapshot,
8075 replace_newest: bool,
8076 autoscroll: Option<Autoscroll>,
8077 cx: &mut ViewContext<Self>,
8078 ) -> Result<()> {
8079 fn select_next_match_ranges(
8080 this: &mut Editor,
8081 range: Range<usize>,
8082 replace_newest: bool,
8083 auto_scroll: Option<Autoscroll>,
8084 cx: &mut ViewContext<Editor>,
8085 ) {
8086 this.unfold_ranges(&[range.clone()], false, true, cx);
8087 this.change_selections(auto_scroll, cx, |s| {
8088 if replace_newest {
8089 s.delete(s.newest_anchor().id);
8090 }
8091 s.insert_range(range.clone());
8092 });
8093 }
8094
8095 let buffer = &display_map.buffer_snapshot;
8096 let mut selections = self.selections.all::<usize>(cx);
8097 if let Some(mut select_next_state) = self.select_next_state.take() {
8098 let query = &select_next_state.query;
8099 if !select_next_state.done {
8100 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8101 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8102 let mut next_selected_range = None;
8103
8104 let bytes_after_last_selection =
8105 buffer.bytes_in_range(last_selection.end..buffer.len());
8106 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8107 let query_matches = query
8108 .stream_find_iter(bytes_after_last_selection)
8109 .map(|result| (last_selection.end, result))
8110 .chain(
8111 query
8112 .stream_find_iter(bytes_before_first_selection)
8113 .map(|result| (0, result)),
8114 );
8115
8116 for (start_offset, query_match) in query_matches {
8117 let query_match = query_match.unwrap(); // can only fail due to I/O
8118 let offset_range =
8119 start_offset + query_match.start()..start_offset + query_match.end();
8120 let display_range = offset_range.start.to_display_point(display_map)
8121 ..offset_range.end.to_display_point(display_map);
8122
8123 if !select_next_state.wordwise
8124 || (!movement::is_inside_word(display_map, display_range.start)
8125 && !movement::is_inside_word(display_map, display_range.end))
8126 {
8127 // TODO: This is n^2, because we might check all the selections
8128 if !selections
8129 .iter()
8130 .any(|selection| selection.range().overlaps(&offset_range))
8131 {
8132 next_selected_range = Some(offset_range);
8133 break;
8134 }
8135 }
8136 }
8137
8138 if let Some(next_selected_range) = next_selected_range {
8139 select_next_match_ranges(
8140 self,
8141 next_selected_range,
8142 replace_newest,
8143 autoscroll,
8144 cx,
8145 );
8146 } else {
8147 select_next_state.done = true;
8148 }
8149 }
8150
8151 self.select_next_state = Some(select_next_state);
8152 } else {
8153 let mut only_carets = true;
8154 let mut same_text_selected = true;
8155 let mut selected_text = None;
8156
8157 let mut selections_iter = selections.iter().peekable();
8158 while let Some(selection) = selections_iter.next() {
8159 if selection.start != selection.end {
8160 only_carets = false;
8161 }
8162
8163 if same_text_selected {
8164 if selected_text.is_none() {
8165 selected_text =
8166 Some(buffer.text_for_range(selection.range()).collect::<String>());
8167 }
8168
8169 if let Some(next_selection) = selections_iter.peek() {
8170 if next_selection.range().len() == selection.range().len() {
8171 let next_selected_text = buffer
8172 .text_for_range(next_selection.range())
8173 .collect::<String>();
8174 if Some(next_selected_text) != selected_text {
8175 same_text_selected = false;
8176 selected_text = None;
8177 }
8178 } else {
8179 same_text_selected = false;
8180 selected_text = None;
8181 }
8182 }
8183 }
8184 }
8185
8186 if only_carets {
8187 for selection in &mut selections {
8188 let word_range = movement::surrounding_word(
8189 display_map,
8190 selection.start.to_display_point(display_map),
8191 );
8192 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8193 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8194 selection.goal = SelectionGoal::None;
8195 selection.reversed = false;
8196 select_next_match_ranges(
8197 self,
8198 selection.start..selection.end,
8199 replace_newest,
8200 autoscroll,
8201 cx,
8202 );
8203 }
8204
8205 if selections.len() == 1 {
8206 let selection = selections
8207 .last()
8208 .expect("ensured that there's only one selection");
8209 let query = buffer
8210 .text_for_range(selection.start..selection.end)
8211 .collect::<String>();
8212 let is_empty = query.is_empty();
8213 let select_state = SelectNextState {
8214 query: AhoCorasick::new(&[query])?,
8215 wordwise: true,
8216 done: is_empty,
8217 };
8218 self.select_next_state = Some(select_state);
8219 } else {
8220 self.select_next_state = None;
8221 }
8222 } else if let Some(selected_text) = selected_text {
8223 self.select_next_state = Some(SelectNextState {
8224 query: AhoCorasick::new(&[selected_text])?,
8225 wordwise: false,
8226 done: false,
8227 });
8228 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8229 }
8230 }
8231 Ok(())
8232 }
8233
8234 pub fn select_all_matches(
8235 &mut self,
8236 _action: &SelectAllMatches,
8237 cx: &mut ViewContext<Self>,
8238 ) -> Result<()> {
8239 self.push_to_selection_history();
8240 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8241
8242 self.select_next_match_internal(&display_map, false, None, cx)?;
8243 let Some(select_next_state) = self.select_next_state.as_mut() else {
8244 return Ok(());
8245 };
8246 if select_next_state.done {
8247 return Ok(());
8248 }
8249
8250 let mut new_selections = self.selections.all::<usize>(cx);
8251
8252 let buffer = &display_map.buffer_snapshot;
8253 let query_matches = select_next_state
8254 .query
8255 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8256
8257 for query_match in query_matches {
8258 let query_match = query_match.unwrap(); // can only fail due to I/O
8259 let offset_range = query_match.start()..query_match.end();
8260 let display_range = offset_range.start.to_display_point(&display_map)
8261 ..offset_range.end.to_display_point(&display_map);
8262
8263 if !select_next_state.wordwise
8264 || (!movement::is_inside_word(&display_map, display_range.start)
8265 && !movement::is_inside_word(&display_map, display_range.end))
8266 {
8267 self.selections.change_with(cx, |selections| {
8268 new_selections.push(Selection {
8269 id: selections.new_selection_id(),
8270 start: offset_range.start,
8271 end: offset_range.end,
8272 reversed: false,
8273 goal: SelectionGoal::None,
8274 });
8275 });
8276 }
8277 }
8278
8279 new_selections.sort_by_key(|selection| selection.start);
8280 let mut ix = 0;
8281 while ix + 1 < new_selections.len() {
8282 let current_selection = &new_selections[ix];
8283 let next_selection = &new_selections[ix + 1];
8284 if current_selection.range().overlaps(&next_selection.range()) {
8285 if current_selection.id < next_selection.id {
8286 new_selections.remove(ix + 1);
8287 } else {
8288 new_selections.remove(ix);
8289 }
8290 } else {
8291 ix += 1;
8292 }
8293 }
8294
8295 select_next_state.done = true;
8296 self.unfold_ranges(
8297 &new_selections
8298 .iter()
8299 .map(|selection| selection.range())
8300 .collect::<Vec<_>>(),
8301 false,
8302 false,
8303 cx,
8304 );
8305 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8306 selections.select(new_selections)
8307 });
8308
8309 Ok(())
8310 }
8311
8312 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8313 self.push_to_selection_history();
8314 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8315 self.select_next_match_internal(
8316 &display_map,
8317 action.replace_newest,
8318 Some(Autoscroll::newest()),
8319 cx,
8320 )?;
8321 Ok(())
8322 }
8323
8324 pub fn select_previous(
8325 &mut self,
8326 action: &SelectPrevious,
8327 cx: &mut ViewContext<Self>,
8328 ) -> Result<()> {
8329 self.push_to_selection_history();
8330 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8331 let buffer = &display_map.buffer_snapshot;
8332 let mut selections = self.selections.all::<usize>(cx);
8333 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8334 let query = &select_prev_state.query;
8335 if !select_prev_state.done {
8336 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8337 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8338 let mut next_selected_range = None;
8339 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8340 let bytes_before_last_selection =
8341 buffer.reversed_bytes_in_range(0..last_selection.start);
8342 let bytes_after_first_selection =
8343 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8344 let query_matches = query
8345 .stream_find_iter(bytes_before_last_selection)
8346 .map(|result| (last_selection.start, result))
8347 .chain(
8348 query
8349 .stream_find_iter(bytes_after_first_selection)
8350 .map(|result| (buffer.len(), result)),
8351 );
8352 for (end_offset, query_match) in query_matches {
8353 let query_match = query_match.unwrap(); // can only fail due to I/O
8354 let offset_range =
8355 end_offset - query_match.end()..end_offset - query_match.start();
8356 let display_range = offset_range.start.to_display_point(&display_map)
8357 ..offset_range.end.to_display_point(&display_map);
8358
8359 if !select_prev_state.wordwise
8360 || (!movement::is_inside_word(&display_map, display_range.start)
8361 && !movement::is_inside_word(&display_map, display_range.end))
8362 {
8363 next_selected_range = Some(offset_range);
8364 break;
8365 }
8366 }
8367
8368 if let Some(next_selected_range) = next_selected_range {
8369 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8370 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8371 if action.replace_newest {
8372 s.delete(s.newest_anchor().id);
8373 }
8374 s.insert_range(next_selected_range);
8375 });
8376 } else {
8377 select_prev_state.done = true;
8378 }
8379 }
8380
8381 self.select_prev_state = Some(select_prev_state);
8382 } else {
8383 let mut only_carets = true;
8384 let mut same_text_selected = true;
8385 let mut selected_text = None;
8386
8387 let mut selections_iter = selections.iter().peekable();
8388 while let Some(selection) = selections_iter.next() {
8389 if selection.start != selection.end {
8390 only_carets = false;
8391 }
8392
8393 if same_text_selected {
8394 if selected_text.is_none() {
8395 selected_text =
8396 Some(buffer.text_for_range(selection.range()).collect::<String>());
8397 }
8398
8399 if let Some(next_selection) = selections_iter.peek() {
8400 if next_selection.range().len() == selection.range().len() {
8401 let next_selected_text = buffer
8402 .text_for_range(next_selection.range())
8403 .collect::<String>();
8404 if Some(next_selected_text) != selected_text {
8405 same_text_selected = false;
8406 selected_text = None;
8407 }
8408 } else {
8409 same_text_selected = false;
8410 selected_text = None;
8411 }
8412 }
8413 }
8414 }
8415
8416 if only_carets {
8417 for selection in &mut selections {
8418 let word_range = movement::surrounding_word(
8419 &display_map,
8420 selection.start.to_display_point(&display_map),
8421 );
8422 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8423 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8424 selection.goal = SelectionGoal::None;
8425 selection.reversed = false;
8426 }
8427 if selections.len() == 1 {
8428 let selection = selections
8429 .last()
8430 .expect("ensured that there's only one selection");
8431 let query = buffer
8432 .text_for_range(selection.start..selection.end)
8433 .collect::<String>();
8434 let is_empty = query.is_empty();
8435 let select_state = SelectNextState {
8436 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8437 wordwise: true,
8438 done: is_empty,
8439 };
8440 self.select_prev_state = Some(select_state);
8441 } else {
8442 self.select_prev_state = None;
8443 }
8444
8445 self.unfold_ranges(
8446 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8447 false,
8448 true,
8449 cx,
8450 );
8451 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8452 s.select(selections);
8453 });
8454 } else if let Some(selected_text) = selected_text {
8455 self.select_prev_state = Some(SelectNextState {
8456 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8457 wordwise: false,
8458 done: false,
8459 });
8460 self.select_previous(action, cx)?;
8461 }
8462 }
8463 Ok(())
8464 }
8465
8466 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8467 if self.read_only(cx) {
8468 return;
8469 }
8470 let text_layout_details = &self.text_layout_details(cx);
8471 self.transact(cx, |this, cx| {
8472 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8473 let mut edits = Vec::new();
8474 let mut selection_edit_ranges = Vec::new();
8475 let mut last_toggled_row = None;
8476 let snapshot = this.buffer.read(cx).read(cx);
8477 let empty_str: Arc<str> = Arc::default();
8478 let mut suffixes_inserted = Vec::new();
8479 let ignore_indent = action.ignore_indent;
8480
8481 fn comment_prefix_range(
8482 snapshot: &MultiBufferSnapshot,
8483 row: MultiBufferRow,
8484 comment_prefix: &str,
8485 comment_prefix_whitespace: &str,
8486 ignore_indent: bool,
8487 ) -> Range<Point> {
8488 let indent_size = if ignore_indent {
8489 0
8490 } else {
8491 snapshot.indent_size_for_line(row).len
8492 };
8493
8494 let start = Point::new(row.0, indent_size);
8495
8496 let mut line_bytes = snapshot
8497 .bytes_in_range(start..snapshot.max_point())
8498 .flatten()
8499 .copied();
8500
8501 // If this line currently begins with the line comment prefix, then record
8502 // the range containing the prefix.
8503 if line_bytes
8504 .by_ref()
8505 .take(comment_prefix.len())
8506 .eq(comment_prefix.bytes())
8507 {
8508 // Include any whitespace that matches the comment prefix.
8509 let matching_whitespace_len = line_bytes
8510 .zip(comment_prefix_whitespace.bytes())
8511 .take_while(|(a, b)| a == b)
8512 .count() as u32;
8513 let end = Point::new(
8514 start.row,
8515 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8516 );
8517 start..end
8518 } else {
8519 start..start
8520 }
8521 }
8522
8523 fn comment_suffix_range(
8524 snapshot: &MultiBufferSnapshot,
8525 row: MultiBufferRow,
8526 comment_suffix: &str,
8527 comment_suffix_has_leading_space: bool,
8528 ) -> Range<Point> {
8529 let end = Point::new(row.0, snapshot.line_len(row));
8530 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8531
8532 let mut line_end_bytes = snapshot
8533 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8534 .flatten()
8535 .copied();
8536
8537 let leading_space_len = if suffix_start_column > 0
8538 && line_end_bytes.next() == Some(b' ')
8539 && comment_suffix_has_leading_space
8540 {
8541 1
8542 } else {
8543 0
8544 };
8545
8546 // If this line currently begins with the line comment prefix, then record
8547 // the range containing the prefix.
8548 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8549 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8550 start..end
8551 } else {
8552 end..end
8553 }
8554 }
8555
8556 // TODO: Handle selections that cross excerpts
8557 for selection in &mut selections {
8558 let start_column = snapshot
8559 .indent_size_for_line(MultiBufferRow(selection.start.row))
8560 .len;
8561 let language = if let Some(language) =
8562 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8563 {
8564 language
8565 } else {
8566 continue;
8567 };
8568
8569 selection_edit_ranges.clear();
8570
8571 // If multiple selections contain a given row, avoid processing that
8572 // row more than once.
8573 let mut start_row = MultiBufferRow(selection.start.row);
8574 if last_toggled_row == Some(start_row) {
8575 start_row = start_row.next_row();
8576 }
8577 let end_row =
8578 if selection.end.row > selection.start.row && selection.end.column == 0 {
8579 MultiBufferRow(selection.end.row - 1)
8580 } else {
8581 MultiBufferRow(selection.end.row)
8582 };
8583 last_toggled_row = Some(end_row);
8584
8585 if start_row > end_row {
8586 continue;
8587 }
8588
8589 // If the language has line comments, toggle those.
8590 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8591
8592 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8593 if ignore_indent {
8594 full_comment_prefixes = full_comment_prefixes
8595 .into_iter()
8596 .map(|s| Arc::from(s.trim_end()))
8597 .collect();
8598 }
8599
8600 if !full_comment_prefixes.is_empty() {
8601 let first_prefix = full_comment_prefixes
8602 .first()
8603 .expect("prefixes is non-empty");
8604 let prefix_trimmed_lengths = full_comment_prefixes
8605 .iter()
8606 .map(|p| p.trim_end_matches(' ').len())
8607 .collect::<SmallVec<[usize; 4]>>();
8608
8609 let mut all_selection_lines_are_comments = true;
8610
8611 for row in start_row.0..=end_row.0 {
8612 let row = MultiBufferRow(row);
8613 if start_row < end_row && snapshot.is_line_blank(row) {
8614 continue;
8615 }
8616
8617 let prefix_range = full_comment_prefixes
8618 .iter()
8619 .zip(prefix_trimmed_lengths.iter().copied())
8620 .map(|(prefix, trimmed_prefix_len)| {
8621 comment_prefix_range(
8622 snapshot.deref(),
8623 row,
8624 &prefix[..trimmed_prefix_len],
8625 &prefix[trimmed_prefix_len..],
8626 ignore_indent,
8627 )
8628 })
8629 .max_by_key(|range| range.end.column - range.start.column)
8630 .expect("prefixes is non-empty");
8631
8632 if prefix_range.is_empty() {
8633 all_selection_lines_are_comments = false;
8634 }
8635
8636 selection_edit_ranges.push(prefix_range);
8637 }
8638
8639 if all_selection_lines_are_comments {
8640 edits.extend(
8641 selection_edit_ranges
8642 .iter()
8643 .cloned()
8644 .map(|range| (range, empty_str.clone())),
8645 );
8646 } else {
8647 let min_column = selection_edit_ranges
8648 .iter()
8649 .map(|range| range.start.column)
8650 .min()
8651 .unwrap_or(0);
8652 edits.extend(selection_edit_ranges.iter().map(|range| {
8653 let position = Point::new(range.start.row, min_column);
8654 (position..position, first_prefix.clone())
8655 }));
8656 }
8657 } else if let Some((full_comment_prefix, comment_suffix)) =
8658 language.block_comment_delimiters()
8659 {
8660 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8661 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8662 let prefix_range = comment_prefix_range(
8663 snapshot.deref(),
8664 start_row,
8665 comment_prefix,
8666 comment_prefix_whitespace,
8667 ignore_indent,
8668 );
8669 let suffix_range = comment_suffix_range(
8670 snapshot.deref(),
8671 end_row,
8672 comment_suffix.trim_start_matches(' '),
8673 comment_suffix.starts_with(' '),
8674 );
8675
8676 if prefix_range.is_empty() || suffix_range.is_empty() {
8677 edits.push((
8678 prefix_range.start..prefix_range.start,
8679 full_comment_prefix.clone(),
8680 ));
8681 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8682 suffixes_inserted.push((end_row, comment_suffix.len()));
8683 } else {
8684 edits.push((prefix_range, empty_str.clone()));
8685 edits.push((suffix_range, empty_str.clone()));
8686 }
8687 } else {
8688 continue;
8689 }
8690 }
8691
8692 drop(snapshot);
8693 this.buffer.update(cx, |buffer, cx| {
8694 buffer.edit(edits, None, cx);
8695 });
8696
8697 // Adjust selections so that they end before any comment suffixes that
8698 // were inserted.
8699 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8700 let mut selections = this.selections.all::<Point>(cx);
8701 let snapshot = this.buffer.read(cx).read(cx);
8702 for selection in &mut selections {
8703 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8704 match row.cmp(&MultiBufferRow(selection.end.row)) {
8705 Ordering::Less => {
8706 suffixes_inserted.next();
8707 continue;
8708 }
8709 Ordering::Greater => break,
8710 Ordering::Equal => {
8711 if selection.end.column == snapshot.line_len(row) {
8712 if selection.is_empty() {
8713 selection.start.column -= suffix_len as u32;
8714 }
8715 selection.end.column -= suffix_len as u32;
8716 }
8717 break;
8718 }
8719 }
8720 }
8721 }
8722
8723 drop(snapshot);
8724 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8725
8726 let selections = this.selections.all::<Point>(cx);
8727 let selections_on_single_row = selections.windows(2).all(|selections| {
8728 selections[0].start.row == selections[1].start.row
8729 && selections[0].end.row == selections[1].end.row
8730 && selections[0].start.row == selections[0].end.row
8731 });
8732 let selections_selecting = selections
8733 .iter()
8734 .any(|selection| selection.start != selection.end);
8735 let advance_downwards = action.advance_downwards
8736 && selections_on_single_row
8737 && !selections_selecting
8738 && !matches!(this.mode, EditorMode::SingleLine { .. });
8739
8740 if advance_downwards {
8741 let snapshot = this.buffer.read(cx).snapshot(cx);
8742
8743 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8744 s.move_cursors_with(|display_snapshot, display_point, _| {
8745 let mut point = display_point.to_point(display_snapshot);
8746 point.row += 1;
8747 point = snapshot.clip_point(point, Bias::Left);
8748 let display_point = point.to_display_point(display_snapshot);
8749 let goal = SelectionGoal::HorizontalPosition(
8750 display_snapshot
8751 .x_for_display_point(display_point, text_layout_details)
8752 .into(),
8753 );
8754 (display_point, goal)
8755 })
8756 });
8757 }
8758 });
8759 }
8760
8761 pub fn select_enclosing_symbol(
8762 &mut self,
8763 _: &SelectEnclosingSymbol,
8764 cx: &mut ViewContext<Self>,
8765 ) {
8766 let buffer = self.buffer.read(cx).snapshot(cx);
8767 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8768
8769 fn update_selection(
8770 selection: &Selection<usize>,
8771 buffer_snap: &MultiBufferSnapshot,
8772 ) -> Option<Selection<usize>> {
8773 let cursor = selection.head();
8774 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8775 for symbol in symbols.iter().rev() {
8776 let start = symbol.range.start.to_offset(buffer_snap);
8777 let end = symbol.range.end.to_offset(buffer_snap);
8778 let new_range = start..end;
8779 if start < selection.start || end > selection.end {
8780 return Some(Selection {
8781 id: selection.id,
8782 start: new_range.start,
8783 end: new_range.end,
8784 goal: SelectionGoal::None,
8785 reversed: selection.reversed,
8786 });
8787 }
8788 }
8789 None
8790 }
8791
8792 let mut selected_larger_symbol = false;
8793 let new_selections = old_selections
8794 .iter()
8795 .map(|selection| match update_selection(selection, &buffer) {
8796 Some(new_selection) => {
8797 if new_selection.range() != selection.range() {
8798 selected_larger_symbol = true;
8799 }
8800 new_selection
8801 }
8802 None => selection.clone(),
8803 })
8804 .collect::<Vec<_>>();
8805
8806 if selected_larger_symbol {
8807 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8808 s.select(new_selections);
8809 });
8810 }
8811 }
8812
8813 pub fn select_larger_syntax_node(
8814 &mut self,
8815 _: &SelectLargerSyntaxNode,
8816 cx: &mut ViewContext<Self>,
8817 ) {
8818 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8819 let buffer = self.buffer.read(cx).snapshot(cx);
8820 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8821
8822 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8823 let mut selected_larger_node = false;
8824 let new_selections = old_selections
8825 .iter()
8826 .map(|selection| {
8827 let old_range = selection.start..selection.end;
8828 let mut new_range = old_range.clone();
8829 let mut new_node = None;
8830 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8831 {
8832 new_node = Some(node);
8833 new_range = containing_range;
8834 if !display_map.intersects_fold(new_range.start)
8835 && !display_map.intersects_fold(new_range.end)
8836 {
8837 break;
8838 }
8839 }
8840
8841 if let Some(node) = new_node {
8842 // Log the ancestor, to support using this action as a way to explore TreeSitter
8843 // nodes. Parent and grandparent are also logged because this operation will not
8844 // visit nodes that have the same range as their parent.
8845 log::info!("Node: {node:?}");
8846 let parent = node.parent();
8847 log::info!("Parent: {parent:?}");
8848 let grandparent = parent.and_then(|x| x.parent());
8849 log::info!("Grandparent: {grandparent:?}");
8850 }
8851
8852 selected_larger_node |= new_range != old_range;
8853 Selection {
8854 id: selection.id,
8855 start: new_range.start,
8856 end: new_range.end,
8857 goal: SelectionGoal::None,
8858 reversed: selection.reversed,
8859 }
8860 })
8861 .collect::<Vec<_>>();
8862
8863 if selected_larger_node {
8864 stack.push(old_selections);
8865 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8866 s.select(new_selections);
8867 });
8868 }
8869 self.select_larger_syntax_node_stack = stack;
8870 }
8871
8872 pub fn select_smaller_syntax_node(
8873 &mut self,
8874 _: &SelectSmallerSyntaxNode,
8875 cx: &mut ViewContext<Self>,
8876 ) {
8877 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8878 if let Some(selections) = stack.pop() {
8879 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8880 s.select(selections.to_vec());
8881 });
8882 }
8883 self.select_larger_syntax_node_stack = stack;
8884 }
8885
8886 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8887 if !EditorSettings::get_global(cx).gutter.runnables {
8888 self.clear_tasks();
8889 return Task::ready(());
8890 }
8891 let project = self.project.as_ref().map(Model::downgrade);
8892 cx.spawn(|this, mut cx| async move {
8893 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8894 let Some(project) = project.and_then(|p| p.upgrade()) else {
8895 return;
8896 };
8897 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8898 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8899 }) else {
8900 return;
8901 };
8902
8903 let hide_runnables = project
8904 .update(&mut cx, |project, cx| {
8905 // Do not display any test indicators in non-dev server remote projects.
8906 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8907 })
8908 .unwrap_or(true);
8909 if hide_runnables {
8910 return;
8911 }
8912 let new_rows =
8913 cx.background_executor()
8914 .spawn({
8915 let snapshot = display_snapshot.clone();
8916 async move {
8917 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8918 }
8919 })
8920 .await;
8921 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8922
8923 this.update(&mut cx, |this, _| {
8924 this.clear_tasks();
8925 for (key, value) in rows {
8926 this.insert_tasks(key, value);
8927 }
8928 })
8929 .ok();
8930 })
8931 }
8932 fn fetch_runnable_ranges(
8933 snapshot: &DisplaySnapshot,
8934 range: Range<Anchor>,
8935 ) -> Vec<language::RunnableRange> {
8936 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8937 }
8938
8939 fn runnable_rows(
8940 project: Model<Project>,
8941 snapshot: DisplaySnapshot,
8942 runnable_ranges: Vec<RunnableRange>,
8943 mut cx: AsyncWindowContext,
8944 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8945 runnable_ranges
8946 .into_iter()
8947 .filter_map(|mut runnable| {
8948 let tasks = cx
8949 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8950 .ok()?;
8951 if tasks.is_empty() {
8952 return None;
8953 }
8954
8955 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8956
8957 let row = snapshot
8958 .buffer_snapshot
8959 .buffer_line_for_row(MultiBufferRow(point.row))?
8960 .1
8961 .start
8962 .row;
8963
8964 let context_range =
8965 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8966 Some((
8967 (runnable.buffer_id, row),
8968 RunnableTasks {
8969 templates: tasks,
8970 offset: MultiBufferOffset(runnable.run_range.start),
8971 context_range,
8972 column: point.column,
8973 extra_variables: runnable.extra_captures,
8974 },
8975 ))
8976 })
8977 .collect()
8978 }
8979
8980 fn templates_with_tags(
8981 project: &Model<Project>,
8982 runnable: &mut Runnable,
8983 cx: &WindowContext,
8984 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8985 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8986 let (worktree_id, file) = project
8987 .buffer_for_id(runnable.buffer, cx)
8988 .and_then(|buffer| buffer.read(cx).file())
8989 .map(|file| (file.worktree_id(cx), file.clone()))
8990 .unzip();
8991
8992 (
8993 project.task_store().read(cx).task_inventory().cloned(),
8994 worktree_id,
8995 file,
8996 )
8997 });
8998
8999 let tags = mem::take(&mut runnable.tags);
9000 let mut tags: Vec<_> = tags
9001 .into_iter()
9002 .flat_map(|tag| {
9003 let tag = tag.0.clone();
9004 inventory
9005 .as_ref()
9006 .into_iter()
9007 .flat_map(|inventory| {
9008 inventory.read(cx).list_tasks(
9009 file.clone(),
9010 Some(runnable.language.clone()),
9011 worktree_id,
9012 cx,
9013 )
9014 })
9015 .filter(move |(_, template)| {
9016 template.tags.iter().any(|source_tag| source_tag == &tag)
9017 })
9018 })
9019 .sorted_by_key(|(kind, _)| kind.to_owned())
9020 .collect();
9021 if let Some((leading_tag_source, _)) = tags.first() {
9022 // Strongest source wins; if we have worktree tag binding, prefer that to
9023 // global and language bindings;
9024 // if we have a global binding, prefer that to language binding.
9025 let first_mismatch = tags
9026 .iter()
9027 .position(|(tag_source, _)| tag_source != leading_tag_source);
9028 if let Some(index) = first_mismatch {
9029 tags.truncate(index);
9030 }
9031 }
9032
9033 tags
9034 }
9035
9036 pub fn move_to_enclosing_bracket(
9037 &mut self,
9038 _: &MoveToEnclosingBracket,
9039 cx: &mut ViewContext<Self>,
9040 ) {
9041 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9042 s.move_offsets_with(|snapshot, selection| {
9043 let Some(enclosing_bracket_ranges) =
9044 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9045 else {
9046 return;
9047 };
9048
9049 let mut best_length = usize::MAX;
9050 let mut best_inside = false;
9051 let mut best_in_bracket_range = false;
9052 let mut best_destination = None;
9053 for (open, close) in enclosing_bracket_ranges {
9054 let close = close.to_inclusive();
9055 let length = close.end() - open.start;
9056 let inside = selection.start >= open.end && selection.end <= *close.start();
9057 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9058 || close.contains(&selection.head());
9059
9060 // If best is next to a bracket and current isn't, skip
9061 if !in_bracket_range && best_in_bracket_range {
9062 continue;
9063 }
9064
9065 // Prefer smaller lengths unless best is inside and current isn't
9066 if length > best_length && (best_inside || !inside) {
9067 continue;
9068 }
9069
9070 best_length = length;
9071 best_inside = inside;
9072 best_in_bracket_range = in_bracket_range;
9073 best_destination = Some(
9074 if close.contains(&selection.start) && close.contains(&selection.end) {
9075 if inside {
9076 open.end
9077 } else {
9078 open.start
9079 }
9080 } else if inside {
9081 *close.start()
9082 } else {
9083 *close.end()
9084 },
9085 );
9086 }
9087
9088 if let Some(destination) = best_destination {
9089 selection.collapse_to(destination, SelectionGoal::None);
9090 }
9091 })
9092 });
9093 }
9094
9095 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9096 self.end_selection(cx);
9097 self.selection_history.mode = SelectionHistoryMode::Undoing;
9098 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9099 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9100 self.select_next_state = entry.select_next_state;
9101 self.select_prev_state = entry.select_prev_state;
9102 self.add_selections_state = entry.add_selections_state;
9103 self.request_autoscroll(Autoscroll::newest(), cx);
9104 }
9105 self.selection_history.mode = SelectionHistoryMode::Normal;
9106 }
9107
9108 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9109 self.end_selection(cx);
9110 self.selection_history.mode = SelectionHistoryMode::Redoing;
9111 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9112 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9113 self.select_next_state = entry.select_next_state;
9114 self.select_prev_state = entry.select_prev_state;
9115 self.add_selections_state = entry.add_selections_state;
9116 self.request_autoscroll(Autoscroll::newest(), cx);
9117 }
9118 self.selection_history.mode = SelectionHistoryMode::Normal;
9119 }
9120
9121 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9122 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9123 }
9124
9125 pub fn expand_excerpts_down(
9126 &mut self,
9127 action: &ExpandExcerptsDown,
9128 cx: &mut ViewContext<Self>,
9129 ) {
9130 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9131 }
9132
9133 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9134 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9135 }
9136
9137 pub fn expand_excerpts_for_direction(
9138 &mut self,
9139 lines: u32,
9140 direction: ExpandExcerptDirection,
9141 cx: &mut ViewContext<Self>,
9142 ) {
9143 let selections = self.selections.disjoint_anchors();
9144
9145 let lines = if lines == 0 {
9146 EditorSettings::get_global(cx).expand_excerpt_lines
9147 } else {
9148 lines
9149 };
9150
9151 self.buffer.update(cx, |buffer, cx| {
9152 let snapshot = buffer.snapshot(cx);
9153 let mut excerpt_ids = selections
9154 .iter()
9155 .flat_map(|selection| {
9156 snapshot
9157 .excerpts_for_range(selection.range())
9158 .map(|excerpt| excerpt.id())
9159 })
9160 .collect::<Vec<_>>();
9161 excerpt_ids.sort();
9162 excerpt_ids.dedup();
9163 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9164 })
9165 }
9166
9167 pub fn expand_excerpt(
9168 &mut self,
9169 excerpt: ExcerptId,
9170 direction: ExpandExcerptDirection,
9171 cx: &mut ViewContext<Self>,
9172 ) {
9173 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9174 self.buffer.update(cx, |buffer, cx| {
9175 buffer.expand_excerpts([excerpt], lines, direction, cx)
9176 })
9177 }
9178
9179 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9180 self.go_to_diagnostic_impl(Direction::Next, cx)
9181 }
9182
9183 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9184 self.go_to_diagnostic_impl(Direction::Prev, cx)
9185 }
9186
9187 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9188 let buffer = self.buffer.read(cx).snapshot(cx);
9189 let selection = self.selections.newest::<usize>(cx);
9190
9191 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9192 if direction == Direction::Next {
9193 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9194 self.activate_diagnostics(popover.group_id(), cx);
9195 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9196 let primary_range_start = active_diagnostics.primary_range.start;
9197 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9198 let mut new_selection = s.newest_anchor().clone();
9199 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9200 s.select_anchors(vec![new_selection.clone()]);
9201 });
9202 }
9203 return;
9204 }
9205 }
9206
9207 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9208 active_diagnostics
9209 .primary_range
9210 .to_offset(&buffer)
9211 .to_inclusive()
9212 });
9213 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9214 if active_primary_range.contains(&selection.head()) {
9215 *active_primary_range.start()
9216 } else {
9217 selection.head()
9218 }
9219 } else {
9220 selection.head()
9221 };
9222 let snapshot = self.snapshot(cx);
9223 loop {
9224 let diagnostics = if direction == Direction::Prev {
9225 buffer
9226 .diagnostics_in_range(0..search_start, true)
9227 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9228 diagnostic,
9229 range: range.to_offset(&buffer),
9230 })
9231 .collect::<Vec<_>>()
9232 } else {
9233 buffer
9234 .diagnostics_in_range(search_start..buffer.len(), false)
9235 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9236 diagnostic,
9237 range: range.to_offset(&buffer),
9238 })
9239 .collect::<Vec<_>>()
9240 }
9241 .into_iter()
9242 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9243 let group = diagnostics
9244 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9245 // be sorted in a stable way
9246 // skip until we are at current active diagnostic, if it exists
9247 .skip_while(|entry| {
9248 (match direction {
9249 Direction::Prev => entry.range.start >= search_start,
9250 Direction::Next => entry.range.start <= search_start,
9251 }) && self
9252 .active_diagnostics
9253 .as_ref()
9254 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9255 })
9256 .find_map(|entry| {
9257 if entry.diagnostic.is_primary
9258 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9259 && !entry.range.is_empty()
9260 // if we match with the active diagnostic, skip it
9261 && Some(entry.diagnostic.group_id)
9262 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9263 {
9264 Some((entry.range, entry.diagnostic.group_id))
9265 } else {
9266 None
9267 }
9268 });
9269
9270 if let Some((primary_range, group_id)) = group {
9271 self.activate_diagnostics(group_id, cx);
9272 if self.active_diagnostics.is_some() {
9273 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9274 s.select(vec![Selection {
9275 id: selection.id,
9276 start: primary_range.start,
9277 end: primary_range.start,
9278 reversed: false,
9279 goal: SelectionGoal::None,
9280 }]);
9281 });
9282 }
9283 break;
9284 } else {
9285 // Cycle around to the start of the buffer, potentially moving back to the start of
9286 // the currently active diagnostic.
9287 active_primary_range.take();
9288 if direction == Direction::Prev {
9289 if search_start == buffer.len() {
9290 break;
9291 } else {
9292 search_start = buffer.len();
9293 }
9294 } else if search_start == 0 {
9295 break;
9296 } else {
9297 search_start = 0;
9298 }
9299 }
9300 }
9301 }
9302
9303 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9304 let snapshot = self.snapshot(cx);
9305 let selection = self.selections.newest::<Point>(cx);
9306 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9307 }
9308
9309 fn go_to_hunk_after_position(
9310 &mut self,
9311 snapshot: &EditorSnapshot,
9312 position: Point,
9313 cx: &mut ViewContext<Editor>,
9314 ) -> Option<MultiBufferDiffHunk> {
9315 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9316 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9317 snapshot,
9318 position,
9319 ix > 0,
9320 snapshot.diff_map.diff_hunks_in_range(
9321 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9322 &snapshot.buffer_snapshot,
9323 ),
9324 cx,
9325 ) {
9326 return Some(hunk);
9327 }
9328 }
9329 None
9330 }
9331
9332 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9333 let snapshot = self.snapshot(cx);
9334 let selection = self.selections.newest::<Point>(cx);
9335 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9336 }
9337
9338 fn go_to_hunk_before_position(
9339 &mut self,
9340 snapshot: &EditorSnapshot,
9341 position: Point,
9342 cx: &mut ViewContext<Editor>,
9343 ) -> Option<MultiBufferDiffHunk> {
9344 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9345 .into_iter()
9346 .enumerate()
9347 {
9348 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9349 snapshot,
9350 position,
9351 ix > 0,
9352 snapshot
9353 .diff_map
9354 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9355 cx,
9356 ) {
9357 return Some(hunk);
9358 }
9359 }
9360 None
9361 }
9362
9363 fn go_to_next_hunk_in_direction(
9364 &mut self,
9365 snapshot: &DisplaySnapshot,
9366 initial_point: Point,
9367 is_wrapped: bool,
9368 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9369 cx: &mut ViewContext<Editor>,
9370 ) -> Option<MultiBufferDiffHunk> {
9371 let display_point = initial_point.to_display_point(snapshot);
9372 let mut hunks = hunks
9373 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9374 .filter(|(display_hunk, _)| {
9375 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9376 })
9377 .dedup();
9378
9379 if let Some((display_hunk, hunk)) = hunks.next() {
9380 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9381 let row = display_hunk.start_display_row();
9382 let point = DisplayPoint::new(row, 0);
9383 s.select_display_ranges([point..point]);
9384 });
9385
9386 Some(hunk)
9387 } else {
9388 None
9389 }
9390 }
9391
9392 pub fn go_to_definition(
9393 &mut self,
9394 _: &GoToDefinition,
9395 cx: &mut ViewContext<Self>,
9396 ) -> Task<Result<Navigated>> {
9397 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9398 cx.spawn(|editor, mut cx| async move {
9399 if definition.await? == Navigated::Yes {
9400 return Ok(Navigated::Yes);
9401 }
9402 match editor.update(&mut cx, |editor, cx| {
9403 editor.find_all_references(&FindAllReferences, cx)
9404 })? {
9405 Some(references) => references.await,
9406 None => Ok(Navigated::No),
9407 }
9408 })
9409 }
9410
9411 pub fn go_to_declaration(
9412 &mut self,
9413 _: &GoToDeclaration,
9414 cx: &mut ViewContext<Self>,
9415 ) -> Task<Result<Navigated>> {
9416 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9417 }
9418
9419 pub fn go_to_declaration_split(
9420 &mut self,
9421 _: &GoToDeclaration,
9422 cx: &mut ViewContext<Self>,
9423 ) -> Task<Result<Navigated>> {
9424 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9425 }
9426
9427 pub fn go_to_implementation(
9428 &mut self,
9429 _: &GoToImplementation,
9430 cx: &mut ViewContext<Self>,
9431 ) -> Task<Result<Navigated>> {
9432 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9433 }
9434
9435 pub fn go_to_implementation_split(
9436 &mut self,
9437 _: &GoToImplementationSplit,
9438 cx: &mut ViewContext<Self>,
9439 ) -> Task<Result<Navigated>> {
9440 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9441 }
9442
9443 pub fn go_to_type_definition(
9444 &mut self,
9445 _: &GoToTypeDefinition,
9446 cx: &mut ViewContext<Self>,
9447 ) -> Task<Result<Navigated>> {
9448 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9449 }
9450
9451 pub fn go_to_definition_split(
9452 &mut self,
9453 _: &GoToDefinitionSplit,
9454 cx: &mut ViewContext<Self>,
9455 ) -> Task<Result<Navigated>> {
9456 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9457 }
9458
9459 pub fn go_to_type_definition_split(
9460 &mut self,
9461 _: &GoToTypeDefinitionSplit,
9462 cx: &mut ViewContext<Self>,
9463 ) -> Task<Result<Navigated>> {
9464 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9465 }
9466
9467 fn go_to_definition_of_kind(
9468 &mut self,
9469 kind: GotoDefinitionKind,
9470 split: bool,
9471 cx: &mut ViewContext<Self>,
9472 ) -> Task<Result<Navigated>> {
9473 let Some(provider) = self.semantics_provider.clone() else {
9474 return Task::ready(Ok(Navigated::No));
9475 };
9476 let head = self.selections.newest::<usize>(cx).head();
9477 let buffer = self.buffer.read(cx);
9478 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9479 text_anchor
9480 } else {
9481 return Task::ready(Ok(Navigated::No));
9482 };
9483
9484 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9485 return Task::ready(Ok(Navigated::No));
9486 };
9487
9488 cx.spawn(|editor, mut cx| async move {
9489 let definitions = definitions.await?;
9490 let navigated = editor
9491 .update(&mut cx, |editor, cx| {
9492 editor.navigate_to_hover_links(
9493 Some(kind),
9494 definitions
9495 .into_iter()
9496 .filter(|location| {
9497 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9498 })
9499 .map(HoverLink::Text)
9500 .collect::<Vec<_>>(),
9501 split,
9502 cx,
9503 )
9504 })?
9505 .await?;
9506 anyhow::Ok(navigated)
9507 })
9508 }
9509
9510 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9511 let selection = self.selections.newest_anchor();
9512 let head = selection.head();
9513 let tail = selection.tail();
9514
9515 let Some((buffer, start_position)) =
9516 self.buffer.read(cx).text_anchor_for_position(head, cx)
9517 else {
9518 return;
9519 };
9520
9521 let end_position = if head != tail {
9522 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9523 return;
9524 };
9525 Some(pos)
9526 } else {
9527 None
9528 };
9529
9530 let url_finder = cx.spawn(|editor, mut cx| async move {
9531 let url = if let Some(end_pos) = end_position {
9532 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9533 } else {
9534 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9535 };
9536
9537 if let Some(url) = url {
9538 editor.update(&mut cx, |_, cx| {
9539 cx.open_url(&url);
9540 })
9541 } else {
9542 Ok(())
9543 }
9544 });
9545
9546 url_finder.detach();
9547 }
9548
9549 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9550 let Some(workspace) = self.workspace() else {
9551 return;
9552 };
9553
9554 let position = self.selections.newest_anchor().head();
9555
9556 let Some((buffer, buffer_position)) =
9557 self.buffer.read(cx).text_anchor_for_position(position, cx)
9558 else {
9559 return;
9560 };
9561
9562 let project = self.project.clone();
9563
9564 cx.spawn(|_, mut cx| async move {
9565 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9566
9567 if let Some((_, path)) = result {
9568 workspace
9569 .update(&mut cx, |workspace, cx| {
9570 workspace.open_resolved_path(path, cx)
9571 })?
9572 .await?;
9573 }
9574 anyhow::Ok(())
9575 })
9576 .detach();
9577 }
9578
9579 pub(crate) fn navigate_to_hover_links(
9580 &mut self,
9581 kind: Option<GotoDefinitionKind>,
9582 mut definitions: Vec<HoverLink>,
9583 split: bool,
9584 cx: &mut ViewContext<Editor>,
9585 ) -> Task<Result<Navigated>> {
9586 // If there is one definition, just open it directly
9587 if definitions.len() == 1 {
9588 let definition = definitions.pop().unwrap();
9589
9590 enum TargetTaskResult {
9591 Location(Option<Location>),
9592 AlreadyNavigated,
9593 }
9594
9595 let target_task = match definition {
9596 HoverLink::Text(link) => {
9597 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9598 }
9599 HoverLink::InlayHint(lsp_location, server_id) => {
9600 let computation = self.compute_target_location(lsp_location, server_id, cx);
9601 cx.background_executor().spawn(async move {
9602 let location = computation.await?;
9603 Ok(TargetTaskResult::Location(location))
9604 })
9605 }
9606 HoverLink::Url(url) => {
9607 cx.open_url(&url);
9608 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9609 }
9610 HoverLink::File(path) => {
9611 if let Some(workspace) = self.workspace() {
9612 cx.spawn(|_, mut cx| async move {
9613 workspace
9614 .update(&mut cx, |workspace, cx| {
9615 workspace.open_resolved_path(path, cx)
9616 })?
9617 .await
9618 .map(|_| TargetTaskResult::AlreadyNavigated)
9619 })
9620 } else {
9621 Task::ready(Ok(TargetTaskResult::Location(None)))
9622 }
9623 }
9624 };
9625 cx.spawn(|editor, mut cx| async move {
9626 let target = match target_task.await.context("target resolution task")? {
9627 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9628 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9629 TargetTaskResult::Location(Some(target)) => target,
9630 };
9631
9632 editor.update(&mut cx, |editor, cx| {
9633 let Some(workspace) = editor.workspace() else {
9634 return Navigated::No;
9635 };
9636 let pane = workspace.read(cx).active_pane().clone();
9637
9638 let range = target.range.to_offset(target.buffer.read(cx));
9639 let range = editor.range_for_match(&range);
9640
9641 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9642 let buffer = target.buffer.read(cx);
9643 let range = check_multiline_range(buffer, range);
9644 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9645 s.select_ranges([range]);
9646 });
9647 } else {
9648 cx.window_context().defer(move |cx| {
9649 let target_editor: View<Self> =
9650 workspace.update(cx, |workspace, cx| {
9651 let pane = if split {
9652 workspace.adjacent_pane(cx)
9653 } else {
9654 workspace.active_pane().clone()
9655 };
9656
9657 workspace.open_project_item(
9658 pane,
9659 target.buffer.clone(),
9660 true,
9661 true,
9662 cx,
9663 )
9664 });
9665 target_editor.update(cx, |target_editor, cx| {
9666 // When selecting a definition in a different buffer, disable the nav history
9667 // to avoid creating a history entry at the previous cursor location.
9668 pane.update(cx, |pane, _| pane.disable_history());
9669 let buffer = target.buffer.read(cx);
9670 let range = check_multiline_range(buffer, range);
9671 target_editor.change_selections(
9672 Some(Autoscroll::focused()),
9673 cx,
9674 |s| {
9675 s.select_ranges([range]);
9676 },
9677 );
9678 pane.update(cx, |pane, _| pane.enable_history());
9679 });
9680 });
9681 }
9682 Navigated::Yes
9683 })
9684 })
9685 } else if !definitions.is_empty() {
9686 cx.spawn(|editor, mut cx| async move {
9687 let (title, location_tasks, workspace) = editor
9688 .update(&mut cx, |editor, cx| {
9689 let tab_kind = match kind {
9690 Some(GotoDefinitionKind::Implementation) => "Implementations",
9691 _ => "Definitions",
9692 };
9693 let title = definitions
9694 .iter()
9695 .find_map(|definition| match definition {
9696 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9697 let buffer = origin.buffer.read(cx);
9698 format!(
9699 "{} for {}",
9700 tab_kind,
9701 buffer
9702 .text_for_range(origin.range.clone())
9703 .collect::<String>()
9704 )
9705 }),
9706 HoverLink::InlayHint(_, _) => None,
9707 HoverLink::Url(_) => None,
9708 HoverLink::File(_) => None,
9709 })
9710 .unwrap_or(tab_kind.to_string());
9711 let location_tasks = definitions
9712 .into_iter()
9713 .map(|definition| match definition {
9714 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9715 HoverLink::InlayHint(lsp_location, server_id) => {
9716 editor.compute_target_location(lsp_location, server_id, cx)
9717 }
9718 HoverLink::Url(_) => Task::ready(Ok(None)),
9719 HoverLink::File(_) => Task::ready(Ok(None)),
9720 })
9721 .collect::<Vec<_>>();
9722 (title, location_tasks, editor.workspace().clone())
9723 })
9724 .context("location tasks preparation")?;
9725
9726 let locations = future::join_all(location_tasks)
9727 .await
9728 .into_iter()
9729 .filter_map(|location| location.transpose())
9730 .collect::<Result<_>>()
9731 .context("location tasks")?;
9732
9733 let Some(workspace) = workspace else {
9734 return Ok(Navigated::No);
9735 };
9736 let opened = workspace
9737 .update(&mut cx, |workspace, cx| {
9738 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9739 })
9740 .ok();
9741
9742 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9743 })
9744 } else {
9745 Task::ready(Ok(Navigated::No))
9746 }
9747 }
9748
9749 fn compute_target_location(
9750 &self,
9751 lsp_location: lsp::Location,
9752 server_id: LanguageServerId,
9753 cx: &mut ViewContext<Self>,
9754 ) -> Task<anyhow::Result<Option<Location>>> {
9755 let Some(project) = self.project.clone() else {
9756 return Task::ready(Ok(None));
9757 };
9758
9759 cx.spawn(move |editor, mut cx| async move {
9760 let location_task = editor.update(&mut cx, |_, cx| {
9761 project.update(cx, |project, cx| {
9762 let language_server_name = project
9763 .language_server_statuses(cx)
9764 .find(|(id, _)| server_id == *id)
9765 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9766 language_server_name.map(|language_server_name| {
9767 project.open_local_buffer_via_lsp(
9768 lsp_location.uri.clone(),
9769 server_id,
9770 language_server_name,
9771 cx,
9772 )
9773 })
9774 })
9775 })?;
9776 let location = match location_task {
9777 Some(task) => Some({
9778 let target_buffer_handle = task.await.context("open local buffer")?;
9779 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9780 let target_start = target_buffer
9781 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9782 let target_end = target_buffer
9783 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9784 target_buffer.anchor_after(target_start)
9785 ..target_buffer.anchor_before(target_end)
9786 })?;
9787 Location {
9788 buffer: target_buffer_handle,
9789 range,
9790 }
9791 }),
9792 None => None,
9793 };
9794 Ok(location)
9795 })
9796 }
9797
9798 pub fn find_all_references(
9799 &mut self,
9800 _: &FindAllReferences,
9801 cx: &mut ViewContext<Self>,
9802 ) -> Option<Task<Result<Navigated>>> {
9803 let selection = self.selections.newest::<usize>(cx);
9804 let multi_buffer = self.buffer.read(cx);
9805 let head = selection.head();
9806
9807 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9808 let head_anchor = multi_buffer_snapshot.anchor_at(
9809 head,
9810 if head < selection.tail() {
9811 Bias::Right
9812 } else {
9813 Bias::Left
9814 },
9815 );
9816
9817 match self
9818 .find_all_references_task_sources
9819 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9820 {
9821 Ok(_) => {
9822 log::info!(
9823 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9824 );
9825 return None;
9826 }
9827 Err(i) => {
9828 self.find_all_references_task_sources.insert(i, head_anchor);
9829 }
9830 }
9831
9832 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9833 let workspace = self.workspace()?;
9834 let project = workspace.read(cx).project().clone();
9835 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9836 Some(cx.spawn(|editor, mut cx| async move {
9837 let _cleanup = defer({
9838 let mut cx = cx.clone();
9839 move || {
9840 let _ = editor.update(&mut cx, |editor, _| {
9841 if let Ok(i) =
9842 editor
9843 .find_all_references_task_sources
9844 .binary_search_by(|anchor| {
9845 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9846 })
9847 {
9848 editor.find_all_references_task_sources.remove(i);
9849 }
9850 });
9851 }
9852 });
9853
9854 let locations = references.await?;
9855 if locations.is_empty() {
9856 return anyhow::Ok(Navigated::No);
9857 }
9858
9859 workspace.update(&mut cx, |workspace, cx| {
9860 let title = locations
9861 .first()
9862 .as_ref()
9863 .map(|location| {
9864 let buffer = location.buffer.read(cx);
9865 format!(
9866 "References to `{}`",
9867 buffer
9868 .text_for_range(location.range.clone())
9869 .collect::<String>()
9870 )
9871 })
9872 .unwrap();
9873 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9874 Navigated::Yes
9875 })
9876 }))
9877 }
9878
9879 /// Opens a multibuffer with the given project locations in it
9880 pub fn open_locations_in_multibuffer(
9881 workspace: &mut Workspace,
9882 mut locations: Vec<Location>,
9883 title: String,
9884 split: bool,
9885 cx: &mut ViewContext<Workspace>,
9886 ) {
9887 // If there are multiple definitions, open them in a multibuffer
9888 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9889 let mut locations = locations.into_iter().peekable();
9890 let mut ranges_to_highlight = Vec::new();
9891 let capability = workspace.project().read(cx).capability();
9892
9893 let excerpt_buffer = cx.new_model(|cx| {
9894 let mut multibuffer = MultiBuffer::new(capability);
9895 while let Some(location) = locations.next() {
9896 let buffer = location.buffer.read(cx);
9897 let mut ranges_for_buffer = Vec::new();
9898 let range = location.range.to_offset(buffer);
9899 ranges_for_buffer.push(range.clone());
9900
9901 while let Some(next_location) = locations.peek() {
9902 if next_location.buffer == location.buffer {
9903 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9904 locations.next();
9905 } else {
9906 break;
9907 }
9908 }
9909
9910 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9911 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9912 location.buffer.clone(),
9913 ranges_for_buffer,
9914 DEFAULT_MULTIBUFFER_CONTEXT,
9915 cx,
9916 ))
9917 }
9918
9919 multibuffer.with_title(title)
9920 });
9921
9922 let editor = cx.new_view(|cx| {
9923 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9924 });
9925 editor.update(cx, |editor, cx| {
9926 if let Some(first_range) = ranges_to_highlight.first() {
9927 editor.change_selections(None, cx, |selections| {
9928 selections.clear_disjoint();
9929 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9930 });
9931 }
9932 editor.highlight_background::<Self>(
9933 &ranges_to_highlight,
9934 |theme| theme.editor_highlighted_line_background,
9935 cx,
9936 );
9937 editor.register_buffers_with_language_servers(cx);
9938 });
9939
9940 let item = Box::new(editor);
9941 let item_id = item.item_id();
9942
9943 if split {
9944 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9945 } else {
9946 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9947 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9948 pane.close_current_preview_item(cx)
9949 } else {
9950 None
9951 }
9952 });
9953 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9954 }
9955 workspace.active_pane().update(cx, |pane, cx| {
9956 pane.set_preview_item_id(Some(item_id), cx);
9957 });
9958 }
9959
9960 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9961 use language::ToOffset as _;
9962
9963 let provider = self.semantics_provider.clone()?;
9964 let selection = self.selections.newest_anchor().clone();
9965 let (cursor_buffer, cursor_buffer_position) = self
9966 .buffer
9967 .read(cx)
9968 .text_anchor_for_position(selection.head(), cx)?;
9969 let (tail_buffer, cursor_buffer_position_end) = self
9970 .buffer
9971 .read(cx)
9972 .text_anchor_for_position(selection.tail(), cx)?;
9973 if tail_buffer != cursor_buffer {
9974 return None;
9975 }
9976
9977 let snapshot = cursor_buffer.read(cx).snapshot();
9978 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9979 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9980 let prepare_rename = provider
9981 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9982 .unwrap_or_else(|| Task::ready(Ok(None)));
9983 drop(snapshot);
9984
9985 Some(cx.spawn(|this, mut cx| async move {
9986 let rename_range = if let Some(range) = prepare_rename.await? {
9987 Some(range)
9988 } else {
9989 this.update(&mut cx, |this, cx| {
9990 let buffer = this.buffer.read(cx).snapshot(cx);
9991 let mut buffer_highlights = this
9992 .document_highlights_for_position(selection.head(), &buffer)
9993 .filter(|highlight| {
9994 highlight.start.excerpt_id == selection.head().excerpt_id
9995 && highlight.end.excerpt_id == selection.head().excerpt_id
9996 });
9997 buffer_highlights
9998 .next()
9999 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10000 })?
10001 };
10002 if let Some(rename_range) = rename_range {
10003 this.update(&mut cx, |this, cx| {
10004 let snapshot = cursor_buffer.read(cx).snapshot();
10005 let rename_buffer_range = rename_range.to_offset(&snapshot);
10006 let cursor_offset_in_rename_range =
10007 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10008 let cursor_offset_in_rename_range_end =
10009 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10010
10011 this.take_rename(false, cx);
10012 let buffer = this.buffer.read(cx).read(cx);
10013 let cursor_offset = selection.head().to_offset(&buffer);
10014 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10015 let rename_end = rename_start + rename_buffer_range.len();
10016 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10017 let mut old_highlight_id = None;
10018 let old_name: Arc<str> = buffer
10019 .chunks(rename_start..rename_end, true)
10020 .map(|chunk| {
10021 if old_highlight_id.is_none() {
10022 old_highlight_id = chunk.syntax_highlight_id;
10023 }
10024 chunk.text
10025 })
10026 .collect::<String>()
10027 .into();
10028
10029 drop(buffer);
10030
10031 // Position the selection in the rename editor so that it matches the current selection.
10032 this.show_local_selections = false;
10033 let rename_editor = cx.new_view(|cx| {
10034 let mut editor = Editor::single_line(cx);
10035 editor.buffer.update(cx, |buffer, cx| {
10036 buffer.edit([(0..0, old_name.clone())], None, cx)
10037 });
10038 let rename_selection_range = match cursor_offset_in_rename_range
10039 .cmp(&cursor_offset_in_rename_range_end)
10040 {
10041 Ordering::Equal => {
10042 editor.select_all(&SelectAll, cx);
10043 return editor;
10044 }
10045 Ordering::Less => {
10046 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10047 }
10048 Ordering::Greater => {
10049 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10050 }
10051 };
10052 if rename_selection_range.end > old_name.len() {
10053 editor.select_all(&SelectAll, cx);
10054 } else {
10055 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10056 s.select_ranges([rename_selection_range]);
10057 });
10058 }
10059 editor
10060 });
10061 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10062 if e == &EditorEvent::Focused {
10063 cx.emit(EditorEvent::FocusedIn)
10064 }
10065 })
10066 .detach();
10067
10068 let write_highlights =
10069 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10070 let read_highlights =
10071 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10072 let ranges = write_highlights
10073 .iter()
10074 .flat_map(|(_, ranges)| ranges.iter())
10075 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10076 .cloned()
10077 .collect();
10078
10079 this.highlight_text::<Rename>(
10080 ranges,
10081 HighlightStyle {
10082 fade_out: Some(0.6),
10083 ..Default::default()
10084 },
10085 cx,
10086 );
10087 let rename_focus_handle = rename_editor.focus_handle(cx);
10088 cx.focus(&rename_focus_handle);
10089 let block_id = this.insert_blocks(
10090 [BlockProperties {
10091 style: BlockStyle::Flex,
10092 placement: BlockPlacement::Below(range.start),
10093 height: 1,
10094 render: Arc::new({
10095 let rename_editor = rename_editor.clone();
10096 move |cx: &mut BlockContext| {
10097 let mut text_style = cx.editor_style.text.clone();
10098 if let Some(highlight_style) = old_highlight_id
10099 .and_then(|h| h.style(&cx.editor_style.syntax))
10100 {
10101 text_style = text_style.highlight(highlight_style);
10102 }
10103 div()
10104 .block_mouse_down()
10105 .pl(cx.anchor_x)
10106 .child(EditorElement::new(
10107 &rename_editor,
10108 EditorStyle {
10109 background: cx.theme().system().transparent,
10110 local_player: cx.editor_style.local_player,
10111 text: text_style,
10112 scrollbar_width: cx.editor_style.scrollbar_width,
10113 syntax: cx.editor_style.syntax.clone(),
10114 status: cx.editor_style.status.clone(),
10115 inlay_hints_style: HighlightStyle {
10116 font_weight: Some(FontWeight::BOLD),
10117 ..make_inlay_hints_style(cx)
10118 },
10119 inline_completion_styles: make_suggestion_styles(
10120 cx,
10121 ),
10122 ..EditorStyle::default()
10123 },
10124 ))
10125 .into_any_element()
10126 }
10127 }),
10128 priority: 0,
10129 }],
10130 Some(Autoscroll::fit()),
10131 cx,
10132 )[0];
10133 this.pending_rename = Some(RenameState {
10134 range,
10135 old_name,
10136 editor: rename_editor,
10137 block_id,
10138 });
10139 })?;
10140 }
10141
10142 Ok(())
10143 }))
10144 }
10145
10146 pub fn confirm_rename(
10147 &mut self,
10148 _: &ConfirmRename,
10149 cx: &mut ViewContext<Self>,
10150 ) -> Option<Task<Result<()>>> {
10151 let rename = self.take_rename(false, cx)?;
10152 let workspace = self.workspace()?.downgrade();
10153 let (buffer, start) = self
10154 .buffer
10155 .read(cx)
10156 .text_anchor_for_position(rename.range.start, cx)?;
10157 let (end_buffer, _) = self
10158 .buffer
10159 .read(cx)
10160 .text_anchor_for_position(rename.range.end, cx)?;
10161 if buffer != end_buffer {
10162 return None;
10163 }
10164
10165 let old_name = rename.old_name;
10166 let new_name = rename.editor.read(cx).text(cx);
10167
10168 let rename = self.semantics_provider.as_ref()?.perform_rename(
10169 &buffer,
10170 start,
10171 new_name.clone(),
10172 cx,
10173 )?;
10174
10175 Some(cx.spawn(|editor, mut cx| async move {
10176 let project_transaction = rename.await?;
10177 Self::open_project_transaction(
10178 &editor,
10179 workspace,
10180 project_transaction,
10181 format!("Rename: {} → {}", old_name, new_name),
10182 cx.clone(),
10183 )
10184 .await?;
10185
10186 editor.update(&mut cx, |editor, cx| {
10187 editor.refresh_document_highlights(cx);
10188 })?;
10189 Ok(())
10190 }))
10191 }
10192
10193 fn take_rename(
10194 &mut self,
10195 moving_cursor: bool,
10196 cx: &mut ViewContext<Self>,
10197 ) -> Option<RenameState> {
10198 let rename = self.pending_rename.take()?;
10199 if rename.editor.focus_handle(cx).is_focused(cx) {
10200 cx.focus(&self.focus_handle);
10201 }
10202
10203 self.remove_blocks(
10204 [rename.block_id].into_iter().collect(),
10205 Some(Autoscroll::fit()),
10206 cx,
10207 );
10208 self.clear_highlights::<Rename>(cx);
10209 self.show_local_selections = true;
10210
10211 if moving_cursor {
10212 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10213 editor.selections.newest::<usize>(cx).head()
10214 });
10215
10216 // Update the selection to match the position of the selection inside
10217 // the rename editor.
10218 let snapshot = self.buffer.read(cx).read(cx);
10219 let rename_range = rename.range.to_offset(&snapshot);
10220 let cursor_in_editor = snapshot
10221 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10222 .min(rename_range.end);
10223 drop(snapshot);
10224
10225 self.change_selections(None, cx, |s| {
10226 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10227 });
10228 } else {
10229 self.refresh_document_highlights(cx);
10230 }
10231
10232 Some(rename)
10233 }
10234
10235 pub fn pending_rename(&self) -> Option<&RenameState> {
10236 self.pending_rename.as_ref()
10237 }
10238
10239 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10240 let project = match &self.project {
10241 Some(project) => project.clone(),
10242 None => return None,
10243 };
10244
10245 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffers, cx))
10246 }
10247
10248 fn format_selections(
10249 &mut self,
10250 _: &FormatSelections,
10251 cx: &mut ViewContext<Self>,
10252 ) -> Option<Task<Result<()>>> {
10253 let project = match &self.project {
10254 Some(project) => project.clone(),
10255 None => return None,
10256 };
10257
10258 let ranges = self
10259 .selections
10260 .all_adjusted(cx)
10261 .into_iter()
10262 .map(|selection| selection.range())
10263 .collect_vec();
10264
10265 Some(self.perform_format(
10266 project,
10267 FormatTrigger::Manual,
10268 FormatTarget::Ranges(ranges),
10269 cx,
10270 ))
10271 }
10272
10273 fn perform_format(
10274 &mut self,
10275 project: Model<Project>,
10276 trigger: FormatTrigger,
10277 target: FormatTarget,
10278 cx: &mut ViewContext<Self>,
10279 ) -> Task<Result<()>> {
10280 let buffer = self.buffer.clone();
10281 let (buffers, target) = match target {
10282 FormatTarget::Buffers => {
10283 let mut buffers = buffer.read(cx).all_buffers();
10284 if trigger == FormatTrigger::Save {
10285 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10286 }
10287 (buffers, LspFormatTarget::Buffers)
10288 }
10289 FormatTarget::Ranges(selection_ranges) => {
10290 let multi_buffer = buffer.read(cx);
10291 let snapshot = multi_buffer.read(cx);
10292 let mut buffers = HashSet::default();
10293 let mut buffer_id_to_ranges: BTreeMap<BufferId, Vec<Range<text::Anchor>>> =
10294 BTreeMap::new();
10295 for selection_range in selection_ranges {
10296 for (excerpt, buffer_range) in snapshot.range_to_buffer_ranges(selection_range)
10297 {
10298 let buffer_id = excerpt.buffer_id();
10299 let start = excerpt.buffer().anchor_before(buffer_range.start);
10300 let end = excerpt.buffer().anchor_after(buffer_range.end);
10301 buffers.insert(multi_buffer.buffer(buffer_id).unwrap());
10302 buffer_id_to_ranges
10303 .entry(buffer_id)
10304 .and_modify(|buffer_ranges| buffer_ranges.push(start..end))
10305 .or_insert_with(|| vec![start..end]);
10306 }
10307 }
10308 (buffers, LspFormatTarget::Ranges(buffer_id_to_ranges))
10309 }
10310 };
10311
10312 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10313 let format = project.update(cx, |project, cx| {
10314 project.format(buffers, target, true, trigger, cx)
10315 });
10316
10317 cx.spawn(|_, mut cx| async move {
10318 let transaction = futures::select_biased! {
10319 () = timeout => {
10320 log::warn!("timed out waiting for formatting");
10321 None
10322 }
10323 transaction = format.log_err().fuse() => transaction,
10324 };
10325
10326 buffer
10327 .update(&mut cx, |buffer, cx| {
10328 if let Some(transaction) = transaction {
10329 if !buffer.is_singleton() {
10330 buffer.push_transaction(&transaction.0, cx);
10331 }
10332 }
10333
10334 cx.notify();
10335 })
10336 .ok();
10337
10338 Ok(())
10339 })
10340 }
10341
10342 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10343 if let Some(project) = self.project.clone() {
10344 self.buffer.update(cx, |multi_buffer, cx| {
10345 project.update(cx, |project, cx| {
10346 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10347 });
10348 })
10349 }
10350 }
10351
10352 fn cancel_language_server_work(
10353 &mut self,
10354 _: &actions::CancelLanguageServerWork,
10355 cx: &mut ViewContext<Self>,
10356 ) {
10357 if let Some(project) = self.project.clone() {
10358 self.buffer.update(cx, |multi_buffer, cx| {
10359 project.update(cx, |project, cx| {
10360 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10361 });
10362 })
10363 }
10364 }
10365
10366 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10367 cx.show_character_palette();
10368 }
10369
10370 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10371 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10372 let buffer = self.buffer.read(cx).snapshot(cx);
10373 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10374 let is_valid = buffer
10375 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10376 .any(|entry| {
10377 let range = entry.range.to_offset(&buffer);
10378 entry.diagnostic.is_primary
10379 && !range.is_empty()
10380 && range.start == primary_range_start
10381 && entry.diagnostic.message == active_diagnostics.primary_message
10382 });
10383
10384 if is_valid != active_diagnostics.is_valid {
10385 active_diagnostics.is_valid = is_valid;
10386 let mut new_styles = HashMap::default();
10387 for (block_id, diagnostic) in &active_diagnostics.blocks {
10388 new_styles.insert(
10389 *block_id,
10390 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10391 );
10392 }
10393 self.display_map.update(cx, |display_map, _cx| {
10394 display_map.replace_blocks(new_styles)
10395 });
10396 }
10397 }
10398 }
10399
10400 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10401 self.dismiss_diagnostics(cx);
10402 let snapshot = self.snapshot(cx);
10403 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10404 let buffer = self.buffer.read(cx).snapshot(cx);
10405
10406 let mut primary_range = None;
10407 let mut primary_message = None;
10408 let mut group_end = Point::zero();
10409 let diagnostic_group = buffer
10410 .diagnostic_group(group_id)
10411 .filter_map(|entry| {
10412 let start = entry.range.start.to_point(&buffer);
10413 let end = entry.range.end.to_point(&buffer);
10414 if snapshot.is_line_folded(MultiBufferRow(start.row))
10415 && (start.row == end.row
10416 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10417 {
10418 return None;
10419 }
10420 if end > group_end {
10421 group_end = end;
10422 }
10423 if entry.diagnostic.is_primary {
10424 primary_range = Some(entry.range.clone());
10425 primary_message = Some(entry.diagnostic.message.clone());
10426 }
10427 Some(entry)
10428 })
10429 .collect::<Vec<_>>();
10430 let primary_range = primary_range?;
10431 let primary_message = primary_message?;
10432
10433 let blocks = display_map
10434 .insert_blocks(
10435 diagnostic_group.iter().map(|entry| {
10436 let diagnostic = entry.diagnostic.clone();
10437 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10438 BlockProperties {
10439 style: BlockStyle::Fixed,
10440 placement: BlockPlacement::Below(
10441 buffer.anchor_after(entry.range.start),
10442 ),
10443 height: message_height,
10444 render: diagnostic_block_renderer(diagnostic, None, true, true),
10445 priority: 0,
10446 }
10447 }),
10448 cx,
10449 )
10450 .into_iter()
10451 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10452 .collect();
10453
10454 Some(ActiveDiagnosticGroup {
10455 primary_range,
10456 primary_message,
10457 group_id,
10458 blocks,
10459 is_valid: true,
10460 })
10461 });
10462 }
10463
10464 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10465 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10466 self.display_map.update(cx, |display_map, cx| {
10467 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10468 });
10469 cx.notify();
10470 }
10471 }
10472
10473 pub fn set_selections_from_remote(
10474 &mut self,
10475 selections: Vec<Selection<Anchor>>,
10476 pending_selection: Option<Selection<Anchor>>,
10477 cx: &mut ViewContext<Self>,
10478 ) {
10479 let old_cursor_position = self.selections.newest_anchor().head();
10480 self.selections.change_with(cx, |s| {
10481 s.select_anchors(selections);
10482 if let Some(pending_selection) = pending_selection {
10483 s.set_pending(pending_selection, SelectMode::Character);
10484 } else {
10485 s.clear_pending();
10486 }
10487 });
10488 self.selections_did_change(false, &old_cursor_position, true, cx);
10489 }
10490
10491 fn push_to_selection_history(&mut self) {
10492 self.selection_history.push(SelectionHistoryEntry {
10493 selections: self.selections.disjoint_anchors(),
10494 select_next_state: self.select_next_state.clone(),
10495 select_prev_state: self.select_prev_state.clone(),
10496 add_selections_state: self.add_selections_state.clone(),
10497 });
10498 }
10499
10500 pub fn transact(
10501 &mut self,
10502 cx: &mut ViewContext<Self>,
10503 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10504 ) -> Option<TransactionId> {
10505 self.start_transaction_at(Instant::now(), cx);
10506 update(self, cx);
10507 self.end_transaction_at(Instant::now(), cx)
10508 }
10509
10510 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10511 self.end_selection(cx);
10512 if let Some(tx_id) = self
10513 .buffer
10514 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10515 {
10516 self.selection_history
10517 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10518 cx.emit(EditorEvent::TransactionBegun {
10519 transaction_id: tx_id,
10520 })
10521 }
10522 }
10523
10524 pub fn end_transaction_at(
10525 &mut self,
10526 now: Instant,
10527 cx: &mut ViewContext<Self>,
10528 ) -> Option<TransactionId> {
10529 if let Some(transaction_id) = self
10530 .buffer
10531 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10532 {
10533 if let Some((_, end_selections)) =
10534 self.selection_history.transaction_mut(transaction_id)
10535 {
10536 *end_selections = Some(self.selections.disjoint_anchors());
10537 } else {
10538 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10539 }
10540
10541 cx.emit(EditorEvent::Edited { transaction_id });
10542 Some(transaction_id)
10543 } else {
10544 None
10545 }
10546 }
10547
10548 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10549 if self.is_singleton(cx) {
10550 let selection = self.selections.newest::<Point>(cx);
10551
10552 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10553 let range = if selection.is_empty() {
10554 let point = selection.head().to_display_point(&display_map);
10555 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10556 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10557 .to_point(&display_map);
10558 start..end
10559 } else {
10560 selection.range()
10561 };
10562 if display_map.folds_in_range(range).next().is_some() {
10563 self.unfold_lines(&Default::default(), cx)
10564 } else {
10565 self.fold(&Default::default(), cx)
10566 }
10567 } else {
10568 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10569 let mut toggled_buffers = HashSet::default();
10570 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10571 self.selections
10572 .disjoint_anchors()
10573 .into_iter()
10574 .map(|selection| selection.range()),
10575 ) {
10576 let buffer_id = buffer_snapshot.remote_id();
10577 if toggled_buffers.insert(buffer_id) {
10578 if self.buffer_folded(buffer_id, cx) {
10579 self.unfold_buffer(buffer_id, cx);
10580 } else {
10581 self.fold_buffer(buffer_id, cx);
10582 }
10583 }
10584 }
10585 }
10586 }
10587
10588 pub fn toggle_fold_recursive(
10589 &mut self,
10590 _: &actions::ToggleFoldRecursive,
10591 cx: &mut ViewContext<Self>,
10592 ) {
10593 let selection = self.selections.newest::<Point>(cx);
10594
10595 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10596 let range = if selection.is_empty() {
10597 let point = selection.head().to_display_point(&display_map);
10598 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10599 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10600 .to_point(&display_map);
10601 start..end
10602 } else {
10603 selection.range()
10604 };
10605 if display_map.folds_in_range(range).next().is_some() {
10606 self.unfold_recursive(&Default::default(), cx)
10607 } else {
10608 self.fold_recursive(&Default::default(), cx)
10609 }
10610 }
10611
10612 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10613 if self.is_singleton(cx) {
10614 let mut to_fold = Vec::new();
10615 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10616 let selections = self.selections.all_adjusted(cx);
10617
10618 for selection in selections {
10619 let range = selection.range().sorted();
10620 let buffer_start_row = range.start.row;
10621
10622 if range.start.row != range.end.row {
10623 let mut found = false;
10624 let mut row = range.start.row;
10625 while row <= range.end.row {
10626 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10627 {
10628 found = true;
10629 row = crease.range().end.row + 1;
10630 to_fold.push(crease);
10631 } else {
10632 row += 1
10633 }
10634 }
10635 if found {
10636 continue;
10637 }
10638 }
10639
10640 for row in (0..=range.start.row).rev() {
10641 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10642 if crease.range().end.row >= buffer_start_row {
10643 to_fold.push(crease);
10644 if row <= range.start.row {
10645 break;
10646 }
10647 }
10648 }
10649 }
10650 }
10651
10652 self.fold_creases(to_fold, true, cx);
10653 } else {
10654 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10655 let mut folded_buffers = HashSet::default();
10656 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10657 self.selections
10658 .disjoint_anchors()
10659 .into_iter()
10660 .map(|selection| selection.range()),
10661 ) {
10662 let buffer_id = buffer_snapshot.remote_id();
10663 if folded_buffers.insert(buffer_id) {
10664 self.fold_buffer(buffer_id, cx);
10665 }
10666 }
10667 }
10668 }
10669
10670 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10671 if !self.buffer.read(cx).is_singleton() {
10672 return;
10673 }
10674
10675 let fold_at_level = fold_at.level;
10676 let snapshot = self.buffer.read(cx).snapshot(cx);
10677 let mut to_fold = Vec::new();
10678 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10679
10680 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10681 while start_row < end_row {
10682 match self
10683 .snapshot(cx)
10684 .crease_for_buffer_row(MultiBufferRow(start_row))
10685 {
10686 Some(crease) => {
10687 let nested_start_row = crease.range().start.row + 1;
10688 let nested_end_row = crease.range().end.row;
10689
10690 if current_level < fold_at_level {
10691 stack.push((nested_start_row, nested_end_row, current_level + 1));
10692 } else if current_level == fold_at_level {
10693 to_fold.push(crease);
10694 }
10695
10696 start_row = nested_end_row + 1;
10697 }
10698 None => start_row += 1,
10699 }
10700 }
10701 }
10702
10703 self.fold_creases(to_fold, true, cx);
10704 }
10705
10706 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10707 if self.buffer.read(cx).is_singleton() {
10708 let mut fold_ranges = Vec::new();
10709 let snapshot = self.buffer.read(cx).snapshot(cx);
10710
10711 for row in 0..snapshot.max_row().0 {
10712 if let Some(foldable_range) =
10713 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10714 {
10715 fold_ranges.push(foldable_range);
10716 }
10717 }
10718
10719 self.fold_creases(fold_ranges, true, cx);
10720 } else {
10721 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10722 editor
10723 .update(&mut cx, |editor, cx| {
10724 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10725 editor.fold_buffer(buffer_id, cx);
10726 }
10727 })
10728 .ok();
10729 });
10730 }
10731 }
10732
10733 pub fn fold_function_bodies(
10734 &mut self,
10735 _: &actions::FoldFunctionBodies,
10736 cx: &mut ViewContext<Self>,
10737 ) {
10738 let snapshot = self.buffer.read(cx).snapshot(cx);
10739 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10740 return;
10741 };
10742 let creases = buffer
10743 .function_body_fold_ranges(0..buffer.len())
10744 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10745 .collect();
10746
10747 self.fold_creases(creases, true, cx);
10748 }
10749
10750 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10751 let mut to_fold = Vec::new();
10752 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10753 let selections = self.selections.all_adjusted(cx);
10754
10755 for selection in selections {
10756 let range = selection.range().sorted();
10757 let buffer_start_row = range.start.row;
10758
10759 if range.start.row != range.end.row {
10760 let mut found = false;
10761 for row in range.start.row..=range.end.row {
10762 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10763 found = true;
10764 to_fold.push(crease);
10765 }
10766 }
10767 if found {
10768 continue;
10769 }
10770 }
10771
10772 for row in (0..=range.start.row).rev() {
10773 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10774 if crease.range().end.row >= buffer_start_row {
10775 to_fold.push(crease);
10776 } else {
10777 break;
10778 }
10779 }
10780 }
10781 }
10782
10783 self.fold_creases(to_fold, true, cx);
10784 }
10785
10786 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10787 let buffer_row = fold_at.buffer_row;
10788 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10789
10790 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10791 let autoscroll = self
10792 .selections
10793 .all::<Point>(cx)
10794 .iter()
10795 .any(|selection| crease.range().overlaps(&selection.range()));
10796
10797 self.fold_creases(vec![crease], autoscroll, cx);
10798 }
10799 }
10800
10801 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10802 if self.is_singleton(cx) {
10803 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10804 let buffer = &display_map.buffer_snapshot;
10805 let selections = self.selections.all::<Point>(cx);
10806 let ranges = selections
10807 .iter()
10808 .map(|s| {
10809 let range = s.display_range(&display_map).sorted();
10810 let mut start = range.start.to_point(&display_map);
10811 let mut end = range.end.to_point(&display_map);
10812 start.column = 0;
10813 end.column = buffer.line_len(MultiBufferRow(end.row));
10814 start..end
10815 })
10816 .collect::<Vec<_>>();
10817
10818 self.unfold_ranges(&ranges, true, true, cx);
10819 } else {
10820 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10821 let mut unfolded_buffers = HashSet::default();
10822 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10823 self.selections
10824 .disjoint_anchors()
10825 .into_iter()
10826 .map(|selection| selection.range()),
10827 ) {
10828 let buffer_id = buffer_snapshot.remote_id();
10829 if unfolded_buffers.insert(buffer_id) {
10830 self.unfold_buffer(buffer_id, cx);
10831 }
10832 }
10833 }
10834 }
10835
10836 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10837 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10838 let selections = self.selections.all::<Point>(cx);
10839 let ranges = selections
10840 .iter()
10841 .map(|s| {
10842 let mut range = s.display_range(&display_map).sorted();
10843 *range.start.column_mut() = 0;
10844 *range.end.column_mut() = display_map.line_len(range.end.row());
10845 let start = range.start.to_point(&display_map);
10846 let end = range.end.to_point(&display_map);
10847 start..end
10848 })
10849 .collect::<Vec<_>>();
10850
10851 self.unfold_ranges(&ranges, true, true, cx);
10852 }
10853
10854 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10855 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10856
10857 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10858 ..Point::new(
10859 unfold_at.buffer_row.0,
10860 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10861 );
10862
10863 let autoscroll = self
10864 .selections
10865 .all::<Point>(cx)
10866 .iter()
10867 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10868
10869 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10870 }
10871
10872 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10873 if self.buffer.read(cx).is_singleton() {
10874 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10875 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10876 } else {
10877 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10878 editor
10879 .update(&mut cx, |editor, cx| {
10880 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10881 editor.unfold_buffer(buffer_id, cx);
10882 }
10883 })
10884 .ok();
10885 });
10886 }
10887 }
10888
10889 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10890 let selections = self.selections.all::<Point>(cx);
10891 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10892 let line_mode = self.selections.line_mode;
10893 let ranges = selections
10894 .into_iter()
10895 .map(|s| {
10896 if line_mode {
10897 let start = Point::new(s.start.row, 0);
10898 let end = Point::new(
10899 s.end.row,
10900 display_map
10901 .buffer_snapshot
10902 .line_len(MultiBufferRow(s.end.row)),
10903 );
10904 Crease::simple(start..end, display_map.fold_placeholder.clone())
10905 } else {
10906 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10907 }
10908 })
10909 .collect::<Vec<_>>();
10910 self.fold_creases(ranges, true, cx);
10911 }
10912
10913 pub fn fold_creases<T: ToOffset + Clone>(
10914 &mut self,
10915 creases: Vec<Crease<T>>,
10916 auto_scroll: bool,
10917 cx: &mut ViewContext<Self>,
10918 ) {
10919 if creases.is_empty() {
10920 return;
10921 }
10922
10923 let mut buffers_affected = HashSet::default();
10924 let multi_buffer = self.buffer().read(cx);
10925 for crease in &creases {
10926 if let Some((_, buffer, _)) =
10927 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10928 {
10929 buffers_affected.insert(buffer.read(cx).remote_id());
10930 };
10931 }
10932
10933 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10934
10935 if auto_scroll {
10936 self.request_autoscroll(Autoscroll::fit(), cx);
10937 }
10938
10939 for buffer_id in buffers_affected {
10940 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10941 }
10942
10943 cx.notify();
10944
10945 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10946 // Clear diagnostics block when folding a range that contains it.
10947 let snapshot = self.snapshot(cx);
10948 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10949 drop(snapshot);
10950 self.active_diagnostics = Some(active_diagnostics);
10951 self.dismiss_diagnostics(cx);
10952 } else {
10953 self.active_diagnostics = Some(active_diagnostics);
10954 }
10955 }
10956
10957 self.scrollbar_marker_state.dirty = true;
10958 }
10959
10960 /// Removes any folds whose ranges intersect any of the given ranges.
10961 pub fn unfold_ranges<T: ToOffset + Clone>(
10962 &mut self,
10963 ranges: &[Range<T>],
10964 inclusive: bool,
10965 auto_scroll: bool,
10966 cx: &mut ViewContext<Self>,
10967 ) {
10968 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10969 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10970 });
10971 }
10972
10973 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10974 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10975 return;
10976 }
10977 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10978 return;
10979 };
10980 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10981 self.display_map
10982 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10983 cx.emit(EditorEvent::BufferFoldToggled {
10984 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10985 folded: true,
10986 });
10987 cx.notify();
10988 }
10989
10990 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10991 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10992 return;
10993 }
10994 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10995 return;
10996 };
10997 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10998 self.display_map.update(cx, |display_map, cx| {
10999 display_map.unfold_buffer(buffer_id, cx);
11000 });
11001 cx.emit(EditorEvent::BufferFoldToggled {
11002 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
11003 folded: false,
11004 });
11005 cx.notify();
11006 }
11007
11008 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
11009 self.display_map.read(cx).buffer_folded(buffer)
11010 }
11011
11012 /// Removes any folds with the given ranges.
11013 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11014 &mut self,
11015 ranges: &[Range<T>],
11016 type_id: TypeId,
11017 auto_scroll: bool,
11018 cx: &mut ViewContext<Self>,
11019 ) {
11020 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11021 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11022 });
11023 }
11024
11025 fn remove_folds_with<T: ToOffset + Clone>(
11026 &mut self,
11027 ranges: &[Range<T>],
11028 auto_scroll: bool,
11029 cx: &mut ViewContext<Self>,
11030 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11031 ) {
11032 if ranges.is_empty() {
11033 return;
11034 }
11035
11036 let mut buffers_affected = HashSet::default();
11037 let multi_buffer = self.buffer().read(cx);
11038 for range in ranges {
11039 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11040 buffers_affected.insert(buffer.read(cx).remote_id());
11041 };
11042 }
11043
11044 self.display_map.update(cx, update);
11045
11046 if auto_scroll {
11047 self.request_autoscroll(Autoscroll::fit(), cx);
11048 }
11049
11050 for buffer_id in buffers_affected {
11051 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11052 }
11053
11054 cx.notify();
11055 self.scrollbar_marker_state.dirty = true;
11056 self.active_indent_guides_state.dirty = true;
11057 }
11058
11059 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11060 self.display_map.read(cx).fold_placeholder.clone()
11061 }
11062
11063 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11064 if hovered != self.gutter_hovered {
11065 self.gutter_hovered = hovered;
11066 cx.notify();
11067 }
11068 }
11069
11070 pub fn insert_blocks(
11071 &mut self,
11072 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11073 autoscroll: Option<Autoscroll>,
11074 cx: &mut ViewContext<Self>,
11075 ) -> Vec<CustomBlockId> {
11076 let blocks = self
11077 .display_map
11078 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11079 if let Some(autoscroll) = autoscroll {
11080 self.request_autoscroll(autoscroll, cx);
11081 }
11082 cx.notify();
11083 blocks
11084 }
11085
11086 pub fn resize_blocks(
11087 &mut self,
11088 heights: HashMap<CustomBlockId, u32>,
11089 autoscroll: Option<Autoscroll>,
11090 cx: &mut ViewContext<Self>,
11091 ) {
11092 self.display_map
11093 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11094 if let Some(autoscroll) = autoscroll {
11095 self.request_autoscroll(autoscroll, cx);
11096 }
11097 cx.notify();
11098 }
11099
11100 pub fn replace_blocks(
11101 &mut self,
11102 renderers: HashMap<CustomBlockId, RenderBlock>,
11103 autoscroll: Option<Autoscroll>,
11104 cx: &mut ViewContext<Self>,
11105 ) {
11106 self.display_map
11107 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11108 if let Some(autoscroll) = autoscroll {
11109 self.request_autoscroll(autoscroll, cx);
11110 }
11111 cx.notify();
11112 }
11113
11114 pub fn remove_blocks(
11115 &mut self,
11116 block_ids: HashSet<CustomBlockId>,
11117 autoscroll: Option<Autoscroll>,
11118 cx: &mut ViewContext<Self>,
11119 ) {
11120 self.display_map.update(cx, |display_map, cx| {
11121 display_map.remove_blocks(block_ids, cx)
11122 });
11123 if let Some(autoscroll) = autoscroll {
11124 self.request_autoscroll(autoscroll, cx);
11125 }
11126 cx.notify();
11127 }
11128
11129 pub fn row_for_block(
11130 &self,
11131 block_id: CustomBlockId,
11132 cx: &mut ViewContext<Self>,
11133 ) -> Option<DisplayRow> {
11134 self.display_map
11135 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11136 }
11137
11138 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11139 self.focused_block = Some(focused_block);
11140 }
11141
11142 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11143 self.focused_block.take()
11144 }
11145
11146 pub fn insert_creases(
11147 &mut self,
11148 creases: impl IntoIterator<Item = Crease<Anchor>>,
11149 cx: &mut ViewContext<Self>,
11150 ) -> Vec<CreaseId> {
11151 self.display_map
11152 .update(cx, |map, cx| map.insert_creases(creases, cx))
11153 }
11154
11155 pub fn remove_creases(
11156 &mut self,
11157 ids: impl IntoIterator<Item = CreaseId>,
11158 cx: &mut ViewContext<Self>,
11159 ) {
11160 self.display_map
11161 .update(cx, |map, cx| map.remove_creases(ids, cx));
11162 }
11163
11164 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11165 self.display_map
11166 .update(cx, |map, cx| map.snapshot(cx))
11167 .longest_row()
11168 }
11169
11170 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11171 self.display_map
11172 .update(cx, |map, cx| map.snapshot(cx))
11173 .max_point()
11174 }
11175
11176 pub fn text(&self, cx: &AppContext) -> String {
11177 self.buffer.read(cx).read(cx).text()
11178 }
11179
11180 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11181 let text = self.text(cx);
11182 let text = text.trim();
11183
11184 if text.is_empty() {
11185 return None;
11186 }
11187
11188 Some(text.to_string())
11189 }
11190
11191 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11192 self.transact(cx, |this, cx| {
11193 this.buffer
11194 .read(cx)
11195 .as_singleton()
11196 .expect("you can only call set_text on editors for singleton buffers")
11197 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11198 });
11199 }
11200
11201 pub fn display_text(&self, cx: &mut AppContext) -> String {
11202 self.display_map
11203 .update(cx, |map, cx| map.snapshot(cx))
11204 .text()
11205 }
11206
11207 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11208 let mut wrap_guides = smallvec::smallvec![];
11209
11210 if self.show_wrap_guides == Some(false) {
11211 return wrap_guides;
11212 }
11213
11214 let settings = self.buffer.read(cx).settings_at(0, cx);
11215 if settings.show_wrap_guides {
11216 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11217 wrap_guides.push((soft_wrap as usize, true));
11218 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11219 wrap_guides.push((soft_wrap as usize, true));
11220 }
11221 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11222 }
11223
11224 wrap_guides
11225 }
11226
11227 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11228 let settings = self.buffer.read(cx).settings_at(0, cx);
11229 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11230 match mode {
11231 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11232 SoftWrap::None
11233 }
11234 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11235 language_settings::SoftWrap::PreferredLineLength => {
11236 SoftWrap::Column(settings.preferred_line_length)
11237 }
11238 language_settings::SoftWrap::Bounded => {
11239 SoftWrap::Bounded(settings.preferred_line_length)
11240 }
11241 }
11242 }
11243
11244 pub fn set_soft_wrap_mode(
11245 &mut self,
11246 mode: language_settings::SoftWrap,
11247 cx: &mut ViewContext<Self>,
11248 ) {
11249 self.soft_wrap_mode_override = Some(mode);
11250 cx.notify();
11251 }
11252
11253 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11254 self.text_style_refinement = Some(style);
11255 }
11256
11257 /// called by the Element so we know what style we were most recently rendered with.
11258 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11259 let rem_size = cx.rem_size();
11260 self.display_map.update(cx, |map, cx| {
11261 map.set_font(
11262 style.text.font(),
11263 style.text.font_size.to_pixels(rem_size),
11264 cx,
11265 )
11266 });
11267 self.style = Some(style);
11268 }
11269
11270 pub fn style(&self) -> Option<&EditorStyle> {
11271 self.style.as_ref()
11272 }
11273
11274 // Called by the element. This method is not designed to be called outside of the editor
11275 // element's layout code because it does not notify when rewrapping is computed synchronously.
11276 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11277 self.display_map
11278 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11279 }
11280
11281 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11282 if self.soft_wrap_mode_override.is_some() {
11283 self.soft_wrap_mode_override.take();
11284 } else {
11285 let soft_wrap = match self.soft_wrap_mode(cx) {
11286 SoftWrap::GitDiff => return,
11287 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11288 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11289 language_settings::SoftWrap::None
11290 }
11291 };
11292 self.soft_wrap_mode_override = Some(soft_wrap);
11293 }
11294 cx.notify();
11295 }
11296
11297 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11298 let Some(workspace) = self.workspace() else {
11299 return;
11300 };
11301 let fs = workspace.read(cx).app_state().fs.clone();
11302 let current_show = TabBarSettings::get_global(cx).show;
11303 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11304 setting.show = Some(!current_show);
11305 });
11306 }
11307
11308 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11309 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11310 self.buffer
11311 .read(cx)
11312 .settings_at(0, cx)
11313 .indent_guides
11314 .enabled
11315 });
11316 self.show_indent_guides = Some(!currently_enabled);
11317 cx.notify();
11318 }
11319
11320 fn should_show_indent_guides(&self) -> Option<bool> {
11321 self.show_indent_guides
11322 }
11323
11324 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11325 let mut editor_settings = EditorSettings::get_global(cx).clone();
11326 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11327 EditorSettings::override_global(editor_settings, cx);
11328 }
11329
11330 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11331 self.use_relative_line_numbers
11332 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11333 }
11334
11335 pub fn toggle_relative_line_numbers(
11336 &mut self,
11337 _: &ToggleRelativeLineNumbers,
11338 cx: &mut ViewContext<Self>,
11339 ) {
11340 let is_relative = self.should_use_relative_line_numbers(cx);
11341 self.set_relative_line_number(Some(!is_relative), cx)
11342 }
11343
11344 pub fn set_relative_line_number(
11345 &mut self,
11346 is_relative: Option<bool>,
11347 cx: &mut ViewContext<Self>,
11348 ) {
11349 self.use_relative_line_numbers = is_relative;
11350 cx.notify();
11351 }
11352
11353 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11354 self.show_gutter = show_gutter;
11355 cx.notify();
11356 }
11357
11358 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11359 self.show_scrollbars = show_scrollbars;
11360 cx.notify();
11361 }
11362
11363 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11364 self.show_line_numbers = Some(show_line_numbers);
11365 cx.notify();
11366 }
11367
11368 pub fn set_show_git_diff_gutter(
11369 &mut self,
11370 show_git_diff_gutter: bool,
11371 cx: &mut ViewContext<Self>,
11372 ) {
11373 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11374 cx.notify();
11375 }
11376
11377 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11378 self.show_code_actions = Some(show_code_actions);
11379 cx.notify();
11380 }
11381
11382 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11383 self.show_runnables = Some(show_runnables);
11384 cx.notify();
11385 }
11386
11387 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11388 if self.display_map.read(cx).masked != masked {
11389 self.display_map.update(cx, |map, _| map.masked = masked);
11390 }
11391 cx.notify()
11392 }
11393
11394 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11395 self.show_wrap_guides = Some(show_wrap_guides);
11396 cx.notify();
11397 }
11398
11399 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11400 self.show_indent_guides = Some(show_indent_guides);
11401 cx.notify();
11402 }
11403
11404 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11405 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11406 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11407 if let Some(dir) = file.abs_path(cx).parent() {
11408 return Some(dir.to_owned());
11409 }
11410 }
11411
11412 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11413 return Some(project_path.path.to_path_buf());
11414 }
11415 }
11416
11417 None
11418 }
11419
11420 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11421 self.active_excerpt(cx)?
11422 .1
11423 .read(cx)
11424 .file()
11425 .and_then(|f| f.as_local())
11426 }
11427
11428 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11429 if let Some(target) = self.target_file(cx) {
11430 cx.reveal_path(&target.abs_path(cx));
11431 }
11432 }
11433
11434 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11435 if let Some(file) = self.target_file(cx) {
11436 if let Some(path) = file.abs_path(cx).to_str() {
11437 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11438 }
11439 }
11440 }
11441
11442 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11443 if let Some(file) = self.target_file(cx) {
11444 if let Some(path) = file.path().to_str() {
11445 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11446 }
11447 }
11448 }
11449
11450 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11451 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11452
11453 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11454 self.start_git_blame(true, cx);
11455 }
11456
11457 cx.notify();
11458 }
11459
11460 pub fn toggle_git_blame_inline(
11461 &mut self,
11462 _: &ToggleGitBlameInline,
11463 cx: &mut ViewContext<Self>,
11464 ) {
11465 self.toggle_git_blame_inline_internal(true, cx);
11466 cx.notify();
11467 }
11468
11469 pub fn git_blame_inline_enabled(&self) -> bool {
11470 self.git_blame_inline_enabled
11471 }
11472
11473 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11474 self.show_selection_menu = self
11475 .show_selection_menu
11476 .map(|show_selections_menu| !show_selections_menu)
11477 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11478
11479 cx.notify();
11480 }
11481
11482 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11483 self.show_selection_menu
11484 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11485 }
11486
11487 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11488 if let Some(project) = self.project.as_ref() {
11489 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11490 return;
11491 };
11492
11493 if buffer.read(cx).file().is_none() {
11494 return;
11495 }
11496
11497 let focused = self.focus_handle(cx).contains_focused(cx);
11498
11499 let project = project.clone();
11500 let blame =
11501 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11502 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11503 self.blame = Some(blame);
11504 }
11505 }
11506
11507 fn toggle_git_blame_inline_internal(
11508 &mut self,
11509 user_triggered: bool,
11510 cx: &mut ViewContext<Self>,
11511 ) {
11512 if self.git_blame_inline_enabled {
11513 self.git_blame_inline_enabled = false;
11514 self.show_git_blame_inline = false;
11515 self.show_git_blame_inline_delay_task.take();
11516 } else {
11517 self.git_blame_inline_enabled = true;
11518 self.start_git_blame_inline(user_triggered, cx);
11519 }
11520
11521 cx.notify();
11522 }
11523
11524 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11525 self.start_git_blame(user_triggered, cx);
11526
11527 if ProjectSettings::get_global(cx)
11528 .git
11529 .inline_blame_delay()
11530 .is_some()
11531 {
11532 self.start_inline_blame_timer(cx);
11533 } else {
11534 self.show_git_blame_inline = true
11535 }
11536 }
11537
11538 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11539 self.blame.as_ref()
11540 }
11541
11542 pub fn show_git_blame_gutter(&self) -> bool {
11543 self.show_git_blame_gutter
11544 }
11545
11546 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11547 self.show_git_blame_gutter && self.has_blame_entries(cx)
11548 }
11549
11550 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11551 self.show_git_blame_inline
11552 && self.focus_handle.is_focused(cx)
11553 && !self.newest_selection_head_on_empty_line(cx)
11554 && self.has_blame_entries(cx)
11555 }
11556
11557 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11558 self.blame()
11559 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11560 }
11561
11562 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11563 let cursor_anchor = self.selections.newest_anchor().head();
11564
11565 let snapshot = self.buffer.read(cx).snapshot(cx);
11566 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11567
11568 snapshot.line_len(buffer_row) == 0
11569 }
11570
11571 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11572 let buffer_and_selection = maybe!({
11573 let selection = self.selections.newest::<Point>(cx);
11574 let selection_range = selection.range();
11575
11576 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11577 (buffer, selection_range.start.row..selection_range.end.row)
11578 } else {
11579 let multi_buffer = self.buffer().read(cx);
11580 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11581 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11582
11583 let (excerpt, range) = if selection.reversed {
11584 buffer_ranges.first()
11585 } else {
11586 buffer_ranges.last()
11587 }?;
11588
11589 let snapshot = excerpt.buffer();
11590 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11591 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11592 (
11593 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11594 selection,
11595 )
11596 };
11597
11598 Some((buffer, selection))
11599 });
11600
11601 let Some((buffer, selection)) = buffer_and_selection else {
11602 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11603 };
11604
11605 let Some(project) = self.project.as_ref() else {
11606 return Task::ready(Err(anyhow!("editor does not have project")));
11607 };
11608
11609 project.update(cx, |project, cx| {
11610 project.get_permalink_to_line(&buffer, selection, cx)
11611 })
11612 }
11613
11614 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11615 let permalink_task = self.get_permalink_to_line(cx);
11616 let workspace = self.workspace();
11617
11618 cx.spawn(|_, mut cx| async move {
11619 match permalink_task.await {
11620 Ok(permalink) => {
11621 cx.update(|cx| {
11622 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11623 })
11624 .ok();
11625 }
11626 Err(err) => {
11627 let message = format!("Failed to copy permalink: {err}");
11628
11629 Err::<(), anyhow::Error>(err).log_err();
11630
11631 if let Some(workspace) = workspace {
11632 workspace
11633 .update(&mut cx, |workspace, cx| {
11634 struct CopyPermalinkToLine;
11635
11636 workspace.show_toast(
11637 Toast::new(
11638 NotificationId::unique::<CopyPermalinkToLine>(),
11639 message,
11640 ),
11641 cx,
11642 )
11643 })
11644 .ok();
11645 }
11646 }
11647 }
11648 })
11649 .detach();
11650 }
11651
11652 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11653 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11654 if let Some(file) = self.target_file(cx) {
11655 if let Some(path) = file.path().to_str() {
11656 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11657 }
11658 }
11659 }
11660
11661 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11662 let permalink_task = self.get_permalink_to_line(cx);
11663 let workspace = self.workspace();
11664
11665 cx.spawn(|_, mut cx| async move {
11666 match permalink_task.await {
11667 Ok(permalink) => {
11668 cx.update(|cx| {
11669 cx.open_url(permalink.as_ref());
11670 })
11671 .ok();
11672 }
11673 Err(err) => {
11674 let message = format!("Failed to open permalink: {err}");
11675
11676 Err::<(), anyhow::Error>(err).log_err();
11677
11678 if let Some(workspace) = workspace {
11679 workspace
11680 .update(&mut cx, |workspace, cx| {
11681 struct OpenPermalinkToLine;
11682
11683 workspace.show_toast(
11684 Toast::new(
11685 NotificationId::unique::<OpenPermalinkToLine>(),
11686 message,
11687 ),
11688 cx,
11689 )
11690 })
11691 .ok();
11692 }
11693 }
11694 }
11695 })
11696 .detach();
11697 }
11698
11699 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11700 self.insert_uuid(UuidVersion::V4, cx);
11701 }
11702
11703 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11704 self.insert_uuid(UuidVersion::V7, cx);
11705 }
11706
11707 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11708 self.transact(cx, |this, cx| {
11709 let edits = this
11710 .selections
11711 .all::<Point>(cx)
11712 .into_iter()
11713 .map(|selection| {
11714 let uuid = match version {
11715 UuidVersion::V4 => uuid::Uuid::new_v4(),
11716 UuidVersion::V7 => uuid::Uuid::now_v7(),
11717 };
11718
11719 (selection.range(), uuid.to_string())
11720 });
11721 this.edit(edits, cx);
11722 this.refresh_inline_completion(true, false, cx);
11723 });
11724 }
11725
11726 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11727 /// last highlight added will be used.
11728 ///
11729 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11730 pub fn highlight_rows<T: 'static>(
11731 &mut self,
11732 range: Range<Anchor>,
11733 color: Hsla,
11734 should_autoscroll: bool,
11735 cx: &mut ViewContext<Self>,
11736 ) {
11737 let snapshot = self.buffer().read(cx).snapshot(cx);
11738 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11739 let ix = row_highlights.binary_search_by(|highlight| {
11740 Ordering::Equal
11741 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11742 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11743 });
11744
11745 if let Err(mut ix) = ix {
11746 let index = post_inc(&mut self.highlight_order);
11747
11748 // If this range intersects with the preceding highlight, then merge it with
11749 // the preceding highlight. Otherwise insert a new highlight.
11750 let mut merged = false;
11751 if ix > 0 {
11752 let prev_highlight = &mut row_highlights[ix - 1];
11753 if prev_highlight
11754 .range
11755 .end
11756 .cmp(&range.start, &snapshot)
11757 .is_ge()
11758 {
11759 ix -= 1;
11760 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11761 prev_highlight.range.end = range.end;
11762 }
11763 merged = true;
11764 prev_highlight.index = index;
11765 prev_highlight.color = color;
11766 prev_highlight.should_autoscroll = should_autoscroll;
11767 }
11768 }
11769
11770 if !merged {
11771 row_highlights.insert(
11772 ix,
11773 RowHighlight {
11774 range: range.clone(),
11775 index,
11776 color,
11777 should_autoscroll,
11778 },
11779 );
11780 }
11781
11782 // If any of the following highlights intersect with this one, merge them.
11783 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11784 let highlight = &row_highlights[ix];
11785 if next_highlight
11786 .range
11787 .start
11788 .cmp(&highlight.range.end, &snapshot)
11789 .is_le()
11790 {
11791 if next_highlight
11792 .range
11793 .end
11794 .cmp(&highlight.range.end, &snapshot)
11795 .is_gt()
11796 {
11797 row_highlights[ix].range.end = next_highlight.range.end;
11798 }
11799 row_highlights.remove(ix + 1);
11800 } else {
11801 break;
11802 }
11803 }
11804 }
11805 }
11806
11807 /// Remove any highlighted row ranges of the given type that intersect the
11808 /// given ranges.
11809 pub fn remove_highlighted_rows<T: 'static>(
11810 &mut self,
11811 ranges_to_remove: Vec<Range<Anchor>>,
11812 cx: &mut ViewContext<Self>,
11813 ) {
11814 let snapshot = self.buffer().read(cx).snapshot(cx);
11815 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11816 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11817 row_highlights.retain(|highlight| {
11818 while let Some(range_to_remove) = ranges_to_remove.peek() {
11819 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11820 Ordering::Less | Ordering::Equal => {
11821 ranges_to_remove.next();
11822 }
11823 Ordering::Greater => {
11824 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11825 Ordering::Less | Ordering::Equal => {
11826 return false;
11827 }
11828 Ordering::Greater => break,
11829 }
11830 }
11831 }
11832 }
11833
11834 true
11835 })
11836 }
11837
11838 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11839 pub fn clear_row_highlights<T: 'static>(&mut self) {
11840 self.highlighted_rows.remove(&TypeId::of::<T>());
11841 }
11842
11843 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11844 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11845 self.highlighted_rows
11846 .get(&TypeId::of::<T>())
11847 .map_or(&[] as &[_], |vec| vec.as_slice())
11848 .iter()
11849 .map(|highlight| (highlight.range.clone(), highlight.color))
11850 }
11851
11852 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11853 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11854 /// Allows to ignore certain kinds of highlights.
11855 pub fn highlighted_display_rows(
11856 &mut self,
11857 cx: &mut WindowContext,
11858 ) -> BTreeMap<DisplayRow, Hsla> {
11859 let snapshot = self.snapshot(cx);
11860 let mut used_highlight_orders = HashMap::default();
11861 self.highlighted_rows
11862 .iter()
11863 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11864 .fold(
11865 BTreeMap::<DisplayRow, Hsla>::new(),
11866 |mut unique_rows, highlight| {
11867 let start = highlight.range.start.to_display_point(&snapshot);
11868 let end = highlight.range.end.to_display_point(&snapshot);
11869 let start_row = start.row().0;
11870 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11871 && end.column() == 0
11872 {
11873 end.row().0.saturating_sub(1)
11874 } else {
11875 end.row().0
11876 };
11877 for row in start_row..=end_row {
11878 let used_index =
11879 used_highlight_orders.entry(row).or_insert(highlight.index);
11880 if highlight.index >= *used_index {
11881 *used_index = highlight.index;
11882 unique_rows.insert(DisplayRow(row), highlight.color);
11883 }
11884 }
11885 unique_rows
11886 },
11887 )
11888 }
11889
11890 pub fn highlighted_display_row_for_autoscroll(
11891 &self,
11892 snapshot: &DisplaySnapshot,
11893 ) -> Option<DisplayRow> {
11894 self.highlighted_rows
11895 .values()
11896 .flat_map(|highlighted_rows| highlighted_rows.iter())
11897 .filter_map(|highlight| {
11898 if highlight.should_autoscroll {
11899 Some(highlight.range.start.to_display_point(snapshot).row())
11900 } else {
11901 None
11902 }
11903 })
11904 .min()
11905 }
11906
11907 pub fn set_search_within_ranges(
11908 &mut self,
11909 ranges: &[Range<Anchor>],
11910 cx: &mut ViewContext<Self>,
11911 ) {
11912 self.highlight_background::<SearchWithinRange>(
11913 ranges,
11914 |colors| colors.editor_document_highlight_read_background,
11915 cx,
11916 )
11917 }
11918
11919 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11920 self.breadcrumb_header = Some(new_header);
11921 }
11922
11923 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11924 self.clear_background_highlights::<SearchWithinRange>(cx);
11925 }
11926
11927 pub fn highlight_background<T: 'static>(
11928 &mut self,
11929 ranges: &[Range<Anchor>],
11930 color_fetcher: fn(&ThemeColors) -> Hsla,
11931 cx: &mut ViewContext<Self>,
11932 ) {
11933 self.background_highlights
11934 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11935 self.scrollbar_marker_state.dirty = true;
11936 cx.notify();
11937 }
11938
11939 pub fn clear_background_highlights<T: 'static>(
11940 &mut self,
11941 cx: &mut ViewContext<Self>,
11942 ) -> Option<BackgroundHighlight> {
11943 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11944 if !text_highlights.1.is_empty() {
11945 self.scrollbar_marker_state.dirty = true;
11946 cx.notify();
11947 }
11948 Some(text_highlights)
11949 }
11950
11951 pub fn highlight_gutter<T: 'static>(
11952 &mut self,
11953 ranges: &[Range<Anchor>],
11954 color_fetcher: fn(&AppContext) -> Hsla,
11955 cx: &mut ViewContext<Self>,
11956 ) {
11957 self.gutter_highlights
11958 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11959 cx.notify();
11960 }
11961
11962 pub fn clear_gutter_highlights<T: 'static>(
11963 &mut self,
11964 cx: &mut ViewContext<Self>,
11965 ) -> Option<GutterHighlight> {
11966 cx.notify();
11967 self.gutter_highlights.remove(&TypeId::of::<T>())
11968 }
11969
11970 #[cfg(feature = "test-support")]
11971 pub fn all_text_background_highlights(
11972 &mut self,
11973 cx: &mut ViewContext<Self>,
11974 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11975 let snapshot = self.snapshot(cx);
11976 let buffer = &snapshot.buffer_snapshot;
11977 let start = buffer.anchor_before(0);
11978 let end = buffer.anchor_after(buffer.len());
11979 let theme = cx.theme().colors();
11980 self.background_highlights_in_range(start..end, &snapshot, theme)
11981 }
11982
11983 #[cfg(feature = "test-support")]
11984 pub fn search_background_highlights(
11985 &mut self,
11986 cx: &mut ViewContext<Self>,
11987 ) -> Vec<Range<Point>> {
11988 let snapshot = self.buffer().read(cx).snapshot(cx);
11989
11990 let highlights = self
11991 .background_highlights
11992 .get(&TypeId::of::<items::BufferSearchHighlights>());
11993
11994 if let Some((_color, ranges)) = highlights {
11995 ranges
11996 .iter()
11997 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11998 .collect_vec()
11999 } else {
12000 vec![]
12001 }
12002 }
12003
12004 fn document_highlights_for_position<'a>(
12005 &'a self,
12006 position: Anchor,
12007 buffer: &'a MultiBufferSnapshot,
12008 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12009 let read_highlights = self
12010 .background_highlights
12011 .get(&TypeId::of::<DocumentHighlightRead>())
12012 .map(|h| &h.1);
12013 let write_highlights = self
12014 .background_highlights
12015 .get(&TypeId::of::<DocumentHighlightWrite>())
12016 .map(|h| &h.1);
12017 let left_position = position.bias_left(buffer);
12018 let right_position = position.bias_right(buffer);
12019 read_highlights
12020 .into_iter()
12021 .chain(write_highlights)
12022 .flat_map(move |ranges| {
12023 let start_ix = match ranges.binary_search_by(|probe| {
12024 let cmp = probe.end.cmp(&left_position, buffer);
12025 if cmp.is_ge() {
12026 Ordering::Greater
12027 } else {
12028 Ordering::Less
12029 }
12030 }) {
12031 Ok(i) | Err(i) => i,
12032 };
12033
12034 ranges[start_ix..]
12035 .iter()
12036 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12037 })
12038 }
12039
12040 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12041 self.background_highlights
12042 .get(&TypeId::of::<T>())
12043 .map_or(false, |(_, highlights)| !highlights.is_empty())
12044 }
12045
12046 pub fn background_highlights_in_range(
12047 &self,
12048 search_range: Range<Anchor>,
12049 display_snapshot: &DisplaySnapshot,
12050 theme: &ThemeColors,
12051 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12052 let mut results = Vec::new();
12053 for (color_fetcher, ranges) in self.background_highlights.values() {
12054 let color = color_fetcher(theme);
12055 let start_ix = match ranges.binary_search_by(|probe| {
12056 let cmp = probe
12057 .end
12058 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12059 if cmp.is_gt() {
12060 Ordering::Greater
12061 } else {
12062 Ordering::Less
12063 }
12064 }) {
12065 Ok(i) | Err(i) => i,
12066 };
12067 for range in &ranges[start_ix..] {
12068 if range
12069 .start
12070 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12071 .is_ge()
12072 {
12073 break;
12074 }
12075
12076 let start = range.start.to_display_point(display_snapshot);
12077 let end = range.end.to_display_point(display_snapshot);
12078 results.push((start..end, color))
12079 }
12080 }
12081 results
12082 }
12083
12084 pub fn background_highlight_row_ranges<T: 'static>(
12085 &self,
12086 search_range: Range<Anchor>,
12087 display_snapshot: &DisplaySnapshot,
12088 count: usize,
12089 ) -> Vec<RangeInclusive<DisplayPoint>> {
12090 let mut results = Vec::new();
12091 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12092 return vec![];
12093 };
12094
12095 let start_ix = match ranges.binary_search_by(|probe| {
12096 let cmp = probe
12097 .end
12098 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12099 if cmp.is_gt() {
12100 Ordering::Greater
12101 } else {
12102 Ordering::Less
12103 }
12104 }) {
12105 Ok(i) | Err(i) => i,
12106 };
12107 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12108 if let (Some(start_display), Some(end_display)) = (start, end) {
12109 results.push(
12110 start_display.to_display_point(display_snapshot)
12111 ..=end_display.to_display_point(display_snapshot),
12112 );
12113 }
12114 };
12115 let mut start_row: Option<Point> = None;
12116 let mut end_row: Option<Point> = None;
12117 if ranges.len() > count {
12118 return Vec::new();
12119 }
12120 for range in &ranges[start_ix..] {
12121 if range
12122 .start
12123 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12124 .is_ge()
12125 {
12126 break;
12127 }
12128 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12129 if let Some(current_row) = &end_row {
12130 if end.row == current_row.row {
12131 continue;
12132 }
12133 }
12134 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12135 if start_row.is_none() {
12136 assert_eq!(end_row, None);
12137 start_row = Some(start);
12138 end_row = Some(end);
12139 continue;
12140 }
12141 if let Some(current_end) = end_row.as_mut() {
12142 if start.row > current_end.row + 1 {
12143 push_region(start_row, end_row);
12144 start_row = Some(start);
12145 end_row = Some(end);
12146 } else {
12147 // Merge two hunks.
12148 *current_end = end;
12149 }
12150 } else {
12151 unreachable!();
12152 }
12153 }
12154 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12155 push_region(start_row, end_row);
12156 results
12157 }
12158
12159 pub fn gutter_highlights_in_range(
12160 &self,
12161 search_range: Range<Anchor>,
12162 display_snapshot: &DisplaySnapshot,
12163 cx: &AppContext,
12164 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12165 let mut results = Vec::new();
12166 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12167 let color = color_fetcher(cx);
12168 let start_ix = match ranges.binary_search_by(|probe| {
12169 let cmp = probe
12170 .end
12171 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12172 if cmp.is_gt() {
12173 Ordering::Greater
12174 } else {
12175 Ordering::Less
12176 }
12177 }) {
12178 Ok(i) | Err(i) => i,
12179 };
12180 for range in &ranges[start_ix..] {
12181 if range
12182 .start
12183 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12184 .is_ge()
12185 {
12186 break;
12187 }
12188
12189 let start = range.start.to_display_point(display_snapshot);
12190 let end = range.end.to_display_point(display_snapshot);
12191 results.push((start..end, color))
12192 }
12193 }
12194 results
12195 }
12196
12197 /// Get the text ranges corresponding to the redaction query
12198 pub fn redacted_ranges(
12199 &self,
12200 search_range: Range<Anchor>,
12201 display_snapshot: &DisplaySnapshot,
12202 cx: &WindowContext,
12203 ) -> Vec<Range<DisplayPoint>> {
12204 display_snapshot
12205 .buffer_snapshot
12206 .redacted_ranges(search_range, |file| {
12207 if let Some(file) = file {
12208 file.is_private()
12209 && EditorSettings::get(
12210 Some(SettingsLocation {
12211 worktree_id: file.worktree_id(cx),
12212 path: file.path().as_ref(),
12213 }),
12214 cx,
12215 )
12216 .redact_private_values
12217 } else {
12218 false
12219 }
12220 })
12221 .map(|range| {
12222 range.start.to_display_point(display_snapshot)
12223 ..range.end.to_display_point(display_snapshot)
12224 })
12225 .collect()
12226 }
12227
12228 pub fn highlight_text<T: 'static>(
12229 &mut self,
12230 ranges: Vec<Range<Anchor>>,
12231 style: HighlightStyle,
12232 cx: &mut ViewContext<Self>,
12233 ) {
12234 self.display_map.update(cx, |map, _| {
12235 map.highlight_text(TypeId::of::<T>(), ranges, style)
12236 });
12237 cx.notify();
12238 }
12239
12240 pub(crate) fn highlight_inlays<T: 'static>(
12241 &mut self,
12242 highlights: Vec<InlayHighlight>,
12243 style: HighlightStyle,
12244 cx: &mut ViewContext<Self>,
12245 ) {
12246 self.display_map.update(cx, |map, _| {
12247 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12248 });
12249 cx.notify();
12250 }
12251
12252 pub fn text_highlights<'a, T: 'static>(
12253 &'a self,
12254 cx: &'a AppContext,
12255 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12256 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12257 }
12258
12259 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12260 let cleared = self
12261 .display_map
12262 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12263 if cleared {
12264 cx.notify();
12265 }
12266 }
12267
12268 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12269 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12270 && self.focus_handle.is_focused(cx)
12271 }
12272
12273 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12274 self.show_cursor_when_unfocused = is_enabled;
12275 cx.notify();
12276 }
12277
12278 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12279 self.project
12280 .as_ref()
12281 .map(|project| project.read(cx).lsp_store())
12282 }
12283
12284 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12285 cx.notify();
12286 }
12287
12288 fn on_buffer_event(
12289 &mut self,
12290 multibuffer: Model<MultiBuffer>,
12291 event: &multi_buffer::Event,
12292 cx: &mut ViewContext<Self>,
12293 ) {
12294 match event {
12295 multi_buffer::Event::Edited {
12296 singleton_buffer_edited,
12297 edited_buffer: buffer_edited,
12298 } => {
12299 self.scrollbar_marker_state.dirty = true;
12300 self.active_indent_guides_state.dirty = true;
12301 self.refresh_active_diagnostics(cx);
12302 self.refresh_code_actions(cx);
12303 if self.has_active_inline_completion() {
12304 self.update_visible_inline_completion(cx);
12305 }
12306 if let Some(buffer) = buffer_edited {
12307 let buffer_id = buffer.read(cx).remote_id();
12308 if !self.registered_buffers.contains_key(&buffer_id) {
12309 if let Some(lsp_store) = self.lsp_store(cx) {
12310 lsp_store.update(cx, |lsp_store, cx| {
12311 self.registered_buffers.insert(
12312 buffer_id,
12313 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12314 );
12315 })
12316 }
12317 }
12318 }
12319 cx.emit(EditorEvent::BufferEdited);
12320 cx.emit(SearchEvent::MatchesInvalidated);
12321 if *singleton_buffer_edited {
12322 if let Some(project) = &self.project {
12323 let project = project.read(cx);
12324 #[allow(clippy::mutable_key_type)]
12325 let languages_affected = multibuffer
12326 .read(cx)
12327 .all_buffers()
12328 .into_iter()
12329 .filter_map(|buffer| {
12330 let buffer = buffer.read(cx);
12331 let language = buffer.language()?;
12332 if project.is_local()
12333 && project
12334 .language_servers_for_local_buffer(buffer, cx)
12335 .count()
12336 == 0
12337 {
12338 None
12339 } else {
12340 Some(language)
12341 }
12342 })
12343 .cloned()
12344 .collect::<HashSet<_>>();
12345 if !languages_affected.is_empty() {
12346 self.refresh_inlay_hints(
12347 InlayHintRefreshReason::BufferEdited(languages_affected),
12348 cx,
12349 );
12350 }
12351 }
12352 }
12353
12354 let Some(project) = &self.project else { return };
12355 let (telemetry, is_via_ssh) = {
12356 let project = project.read(cx);
12357 let telemetry = project.client().telemetry().clone();
12358 let is_via_ssh = project.is_via_ssh();
12359 (telemetry, is_via_ssh)
12360 };
12361 refresh_linked_ranges(self, cx);
12362 telemetry.log_edit_event("editor", is_via_ssh);
12363 }
12364 multi_buffer::Event::ExcerptsAdded {
12365 buffer,
12366 predecessor,
12367 excerpts,
12368 } => {
12369 self.tasks_update_task = Some(self.refresh_runnables(cx));
12370 let buffer_id = buffer.read(cx).remote_id();
12371 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12372 if let Some(project) = &self.project {
12373 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12374 }
12375 }
12376 cx.emit(EditorEvent::ExcerptsAdded {
12377 buffer: buffer.clone(),
12378 predecessor: *predecessor,
12379 excerpts: excerpts.clone(),
12380 });
12381 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12382 }
12383 multi_buffer::Event::ExcerptsRemoved { ids } => {
12384 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12385 let buffer = self.buffer.read(cx);
12386 self.registered_buffers
12387 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12388 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12389 }
12390 multi_buffer::Event::ExcerptsEdited { ids } => {
12391 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12392 }
12393 multi_buffer::Event::ExcerptsExpanded { ids } => {
12394 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12395 }
12396 multi_buffer::Event::Reparsed(buffer_id) => {
12397 self.tasks_update_task = Some(self.refresh_runnables(cx));
12398
12399 cx.emit(EditorEvent::Reparsed(*buffer_id));
12400 }
12401 multi_buffer::Event::LanguageChanged(buffer_id) => {
12402 linked_editing_ranges::refresh_linked_ranges(self, cx);
12403 cx.emit(EditorEvent::Reparsed(*buffer_id));
12404 cx.notify();
12405 }
12406 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12407 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12408 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12409 cx.emit(EditorEvent::TitleChanged)
12410 }
12411 // multi_buffer::Event::DiffBaseChanged => {
12412 // self.scrollbar_marker_state.dirty = true;
12413 // cx.emit(EditorEvent::DiffBaseChanged);
12414 // cx.notify();
12415 // }
12416 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12417 multi_buffer::Event::DiagnosticsUpdated => {
12418 self.refresh_active_diagnostics(cx);
12419 self.scrollbar_marker_state.dirty = true;
12420 cx.notify();
12421 }
12422 _ => {}
12423 };
12424 }
12425
12426 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12427 cx.notify();
12428 }
12429
12430 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12431 self.tasks_update_task = Some(self.refresh_runnables(cx));
12432 self.refresh_inline_completion(true, false, cx);
12433 self.refresh_inlay_hints(
12434 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12435 self.selections.newest_anchor().head(),
12436 &self.buffer.read(cx).snapshot(cx),
12437 cx,
12438 )),
12439 cx,
12440 );
12441
12442 let old_cursor_shape = self.cursor_shape;
12443
12444 {
12445 let editor_settings = EditorSettings::get_global(cx);
12446 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12447 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12448 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12449 }
12450
12451 if old_cursor_shape != self.cursor_shape {
12452 cx.emit(EditorEvent::CursorShapeChanged);
12453 }
12454
12455 let project_settings = ProjectSettings::get_global(cx);
12456 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12457
12458 if self.mode == EditorMode::Full {
12459 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12460 if self.git_blame_inline_enabled != inline_blame_enabled {
12461 self.toggle_git_blame_inline_internal(false, cx);
12462 }
12463 }
12464
12465 cx.notify();
12466 }
12467
12468 pub fn set_searchable(&mut self, searchable: bool) {
12469 self.searchable = searchable;
12470 }
12471
12472 pub fn searchable(&self) -> bool {
12473 self.searchable
12474 }
12475
12476 fn open_proposed_changes_editor(
12477 &mut self,
12478 _: &OpenProposedChangesEditor,
12479 cx: &mut ViewContext<Self>,
12480 ) {
12481 let Some(workspace) = self.workspace() else {
12482 cx.propagate();
12483 return;
12484 };
12485
12486 let selections = self.selections.all::<usize>(cx);
12487 let multi_buffer = self.buffer.read(cx);
12488 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12489 let mut new_selections_by_buffer = HashMap::default();
12490 for selection in selections {
12491 for (excerpt, range) in
12492 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12493 {
12494 let mut range = range.to_point(excerpt.buffer());
12495 range.start.column = 0;
12496 range.end.column = excerpt.buffer().line_len(range.end.row);
12497 new_selections_by_buffer
12498 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12499 .or_insert(Vec::new())
12500 .push(range)
12501 }
12502 }
12503
12504 let proposed_changes_buffers = new_selections_by_buffer
12505 .into_iter()
12506 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12507 .collect::<Vec<_>>();
12508 let proposed_changes_editor = cx.new_view(|cx| {
12509 ProposedChangesEditor::new(
12510 "Proposed changes",
12511 proposed_changes_buffers,
12512 self.project.clone(),
12513 cx,
12514 )
12515 });
12516
12517 cx.window_context().defer(move |cx| {
12518 workspace.update(cx, |workspace, cx| {
12519 workspace.active_pane().update(cx, |pane, cx| {
12520 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12521 });
12522 });
12523 });
12524 }
12525
12526 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12527 self.open_excerpts_common(None, true, cx)
12528 }
12529
12530 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12531 self.open_excerpts_common(None, false, cx)
12532 }
12533
12534 fn open_excerpts_common(
12535 &mut self,
12536 jump_data: Option<JumpData>,
12537 split: bool,
12538 cx: &mut ViewContext<Self>,
12539 ) {
12540 let Some(workspace) = self.workspace() else {
12541 cx.propagate();
12542 return;
12543 };
12544
12545 if self.buffer.read(cx).is_singleton() {
12546 cx.propagate();
12547 return;
12548 }
12549
12550 let mut new_selections_by_buffer = HashMap::default();
12551 match &jump_data {
12552 Some(JumpData::MultiBufferPoint {
12553 excerpt_id,
12554 position,
12555 anchor,
12556 line_offset_from_top,
12557 }) => {
12558 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12559 if let Some(buffer) = multi_buffer_snapshot
12560 .buffer_id_for_excerpt(*excerpt_id)
12561 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12562 {
12563 let buffer_snapshot = buffer.read(cx).snapshot();
12564 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12565 language::ToPoint::to_point(anchor, &buffer_snapshot)
12566 } else {
12567 buffer_snapshot.clip_point(*position, Bias::Left)
12568 };
12569 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12570 new_selections_by_buffer.insert(
12571 buffer,
12572 (
12573 vec![jump_to_offset..jump_to_offset],
12574 Some(*line_offset_from_top),
12575 ),
12576 );
12577 }
12578 }
12579 Some(JumpData::MultiBufferRow {
12580 row,
12581 line_offset_from_top,
12582 }) => {
12583 let point = MultiBufferPoint::new(row.0, 0);
12584 if let Some((buffer, buffer_point, _)) =
12585 self.buffer.read(cx).point_to_buffer_point(point, cx)
12586 {
12587 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12588 new_selections_by_buffer
12589 .entry(buffer)
12590 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12591 .0
12592 .push(buffer_offset..buffer_offset)
12593 }
12594 }
12595 None => {
12596 let selections = self.selections.all::<usize>(cx);
12597 let multi_buffer = self.buffer.read(cx);
12598 for selection in selections {
12599 for (excerpt, mut range) in multi_buffer
12600 .snapshot(cx)
12601 .range_to_buffer_ranges(selection.range())
12602 {
12603 // When editing branch buffers, jump to the corresponding location
12604 // in their base buffer.
12605 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12606 let buffer = buffer_handle.read(cx);
12607 if let Some(base_buffer) = buffer.base_buffer() {
12608 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12609 buffer_handle = base_buffer;
12610 }
12611
12612 if selection.reversed {
12613 mem::swap(&mut range.start, &mut range.end);
12614 }
12615 new_selections_by_buffer
12616 .entry(buffer_handle)
12617 .or_insert((Vec::new(), None))
12618 .0
12619 .push(range)
12620 }
12621 }
12622 }
12623 }
12624
12625 if new_selections_by_buffer.is_empty() {
12626 return;
12627 }
12628
12629 // We defer the pane interaction because we ourselves are a workspace item
12630 // and activating a new item causes the pane to call a method on us reentrantly,
12631 // which panics if we're on the stack.
12632 cx.window_context().defer(move |cx| {
12633 workspace.update(cx, |workspace, cx| {
12634 let pane = if split {
12635 workspace.adjacent_pane(cx)
12636 } else {
12637 workspace.active_pane().clone()
12638 };
12639
12640 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12641 let editor = buffer
12642 .read(cx)
12643 .file()
12644 .is_none()
12645 .then(|| {
12646 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12647 // so `workspace.open_project_item` will never find them, always opening a new editor.
12648 // Instead, we try to activate the existing editor in the pane first.
12649 let (editor, pane_item_index) =
12650 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12651 let editor = item.downcast::<Editor>()?;
12652 let singleton_buffer =
12653 editor.read(cx).buffer().read(cx).as_singleton()?;
12654 if singleton_buffer == buffer {
12655 Some((editor, i))
12656 } else {
12657 None
12658 }
12659 })?;
12660 pane.update(cx, |pane, cx| {
12661 pane.activate_item(pane_item_index, true, true, cx)
12662 });
12663 Some(editor)
12664 })
12665 .flatten()
12666 .unwrap_or_else(|| {
12667 workspace.open_project_item::<Self>(
12668 pane.clone(),
12669 buffer,
12670 true,
12671 true,
12672 cx,
12673 )
12674 });
12675
12676 editor.update(cx, |editor, cx| {
12677 let autoscroll = match scroll_offset {
12678 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12679 None => Autoscroll::newest(),
12680 };
12681 let nav_history = editor.nav_history.take();
12682 editor.change_selections(Some(autoscroll), cx, |s| {
12683 s.select_ranges(ranges);
12684 });
12685 editor.nav_history = nav_history;
12686 });
12687 }
12688 })
12689 });
12690 }
12691
12692 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12693 let snapshot = self.buffer.read(cx).read(cx);
12694 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12695 Some(
12696 ranges
12697 .iter()
12698 .map(move |range| {
12699 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12700 })
12701 .collect(),
12702 )
12703 }
12704
12705 fn selection_replacement_ranges(
12706 &self,
12707 range: Range<OffsetUtf16>,
12708 cx: &mut AppContext,
12709 ) -> Vec<Range<OffsetUtf16>> {
12710 let selections = self.selections.all::<OffsetUtf16>(cx);
12711 let newest_selection = selections
12712 .iter()
12713 .max_by_key(|selection| selection.id)
12714 .unwrap();
12715 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12716 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12717 let snapshot = self.buffer.read(cx).read(cx);
12718 selections
12719 .into_iter()
12720 .map(|mut selection| {
12721 selection.start.0 =
12722 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12723 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12724 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12725 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12726 })
12727 .collect()
12728 }
12729
12730 fn report_editor_event(
12731 &self,
12732 event_type: &'static str,
12733 file_extension: Option<String>,
12734 cx: &AppContext,
12735 ) {
12736 if cfg!(any(test, feature = "test-support")) {
12737 return;
12738 }
12739
12740 let Some(project) = &self.project else { return };
12741
12742 // If None, we are in a file without an extension
12743 let file = self
12744 .buffer
12745 .read(cx)
12746 .as_singleton()
12747 .and_then(|b| b.read(cx).file());
12748 let file_extension = file_extension.or(file
12749 .as_ref()
12750 .and_then(|file| Path::new(file.file_name(cx)).extension())
12751 .and_then(|e| e.to_str())
12752 .map(|a| a.to_string()));
12753
12754 let vim_mode = cx
12755 .global::<SettingsStore>()
12756 .raw_user_settings()
12757 .get("vim_mode")
12758 == Some(&serde_json::Value::Bool(true));
12759
12760 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12761 == language::language_settings::InlineCompletionProvider::Copilot;
12762 let copilot_enabled_for_language = self
12763 .buffer
12764 .read(cx)
12765 .settings_at(0, cx)
12766 .show_inline_completions;
12767
12768 let project = project.read(cx);
12769 telemetry::event!(
12770 event_type,
12771 file_extension,
12772 vim_mode,
12773 copilot_enabled,
12774 copilot_enabled_for_language,
12775 is_via_ssh = project.is_via_ssh(),
12776 );
12777 }
12778
12779 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12780 /// with each line being an array of {text, highlight} objects.
12781 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12782 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12783 return;
12784 };
12785
12786 #[derive(Serialize)]
12787 struct Chunk<'a> {
12788 text: String,
12789 highlight: Option<&'a str>,
12790 }
12791
12792 let snapshot = buffer.read(cx).snapshot();
12793 let range = self
12794 .selected_text_range(false, cx)
12795 .and_then(|selection| {
12796 if selection.range.is_empty() {
12797 None
12798 } else {
12799 Some(selection.range)
12800 }
12801 })
12802 .unwrap_or_else(|| 0..snapshot.len());
12803
12804 let chunks = snapshot.chunks(range, true);
12805 let mut lines = Vec::new();
12806 let mut line: VecDeque<Chunk> = VecDeque::new();
12807
12808 let Some(style) = self.style.as_ref() else {
12809 return;
12810 };
12811
12812 for chunk in chunks {
12813 let highlight = chunk
12814 .syntax_highlight_id
12815 .and_then(|id| id.name(&style.syntax));
12816 let mut chunk_lines = chunk.text.split('\n').peekable();
12817 while let Some(text) = chunk_lines.next() {
12818 let mut merged_with_last_token = false;
12819 if let Some(last_token) = line.back_mut() {
12820 if last_token.highlight == highlight {
12821 last_token.text.push_str(text);
12822 merged_with_last_token = true;
12823 }
12824 }
12825
12826 if !merged_with_last_token {
12827 line.push_back(Chunk {
12828 text: text.into(),
12829 highlight,
12830 });
12831 }
12832
12833 if chunk_lines.peek().is_some() {
12834 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12835 line.pop_front();
12836 }
12837 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12838 line.pop_back();
12839 }
12840
12841 lines.push(mem::take(&mut line));
12842 }
12843 }
12844 }
12845
12846 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12847 return;
12848 };
12849 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12850 }
12851
12852 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12853 self.request_autoscroll(Autoscroll::newest(), cx);
12854 let position = self.selections.newest_display(cx).start;
12855 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12856 }
12857
12858 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12859 &self.inlay_hint_cache
12860 }
12861
12862 pub fn replay_insert_event(
12863 &mut self,
12864 text: &str,
12865 relative_utf16_range: Option<Range<isize>>,
12866 cx: &mut ViewContext<Self>,
12867 ) {
12868 if !self.input_enabled {
12869 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12870 return;
12871 }
12872 if let Some(relative_utf16_range) = relative_utf16_range {
12873 let selections = self.selections.all::<OffsetUtf16>(cx);
12874 self.change_selections(None, cx, |s| {
12875 let new_ranges = selections.into_iter().map(|range| {
12876 let start = OffsetUtf16(
12877 range
12878 .head()
12879 .0
12880 .saturating_add_signed(relative_utf16_range.start),
12881 );
12882 let end = OffsetUtf16(
12883 range
12884 .head()
12885 .0
12886 .saturating_add_signed(relative_utf16_range.end),
12887 );
12888 start..end
12889 });
12890 s.select_ranges(new_ranges);
12891 });
12892 }
12893
12894 self.handle_input(text, cx);
12895 }
12896
12897 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12898 let Some(provider) = self.semantics_provider.as_ref() else {
12899 return false;
12900 };
12901
12902 let mut supports = false;
12903 self.buffer().read(cx).for_each_buffer(|buffer| {
12904 supports |= provider.supports_inlay_hints(buffer, cx);
12905 });
12906 supports
12907 }
12908
12909 pub fn focus(&self, cx: &mut WindowContext) {
12910 cx.focus(&self.focus_handle)
12911 }
12912
12913 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12914 self.focus_handle.is_focused(cx)
12915 }
12916
12917 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12918 cx.emit(EditorEvent::Focused);
12919
12920 if let Some(descendant) = self
12921 .last_focused_descendant
12922 .take()
12923 .and_then(|descendant| descendant.upgrade())
12924 {
12925 cx.focus(&descendant);
12926 } else {
12927 if let Some(blame) = self.blame.as_ref() {
12928 blame.update(cx, GitBlame::focus)
12929 }
12930
12931 self.blink_manager.update(cx, BlinkManager::enable);
12932 self.show_cursor_names(cx);
12933 self.buffer.update(cx, |buffer, cx| {
12934 buffer.finalize_last_transaction(cx);
12935 if self.leader_peer_id.is_none() {
12936 buffer.set_active_selections(
12937 &self.selections.disjoint_anchors(),
12938 self.selections.line_mode,
12939 self.cursor_shape,
12940 cx,
12941 );
12942 }
12943 });
12944 }
12945 }
12946
12947 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12948 cx.emit(EditorEvent::FocusedIn)
12949 }
12950
12951 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12952 if event.blurred != self.focus_handle {
12953 self.last_focused_descendant = Some(event.blurred);
12954 }
12955 }
12956
12957 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12958 self.blink_manager.update(cx, BlinkManager::disable);
12959 self.buffer
12960 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12961
12962 if let Some(blame) = self.blame.as_ref() {
12963 blame.update(cx, GitBlame::blur)
12964 }
12965 if !self.hover_state.focused(cx) {
12966 hide_hover(self, cx);
12967 }
12968
12969 self.hide_context_menu(cx);
12970 cx.emit(EditorEvent::Blurred);
12971 cx.notify();
12972 }
12973
12974 pub fn register_action<A: Action>(
12975 &mut self,
12976 listener: impl Fn(&A, &mut WindowContext) + 'static,
12977 ) -> Subscription {
12978 let id = self.next_editor_action_id.post_inc();
12979 let listener = Arc::new(listener);
12980 self.editor_actions.borrow_mut().insert(
12981 id,
12982 Box::new(move |cx| {
12983 let cx = cx.window_context();
12984 let listener = listener.clone();
12985 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12986 let action = action.downcast_ref().unwrap();
12987 if phase == DispatchPhase::Bubble {
12988 listener(action, cx)
12989 }
12990 })
12991 }),
12992 );
12993
12994 let editor_actions = self.editor_actions.clone();
12995 Subscription::new(move || {
12996 editor_actions.borrow_mut().remove(&id);
12997 })
12998 }
12999
13000 pub fn file_header_size(&self) -> u32 {
13001 FILE_HEADER_HEIGHT
13002 }
13003
13004 pub fn revert(
13005 &mut self,
13006 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13007 cx: &mut ViewContext<Self>,
13008 ) {
13009 self.buffer().update(cx, |multi_buffer, cx| {
13010 for (buffer_id, changes) in revert_changes {
13011 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13012 buffer.update(cx, |buffer, cx| {
13013 buffer.edit(
13014 changes.into_iter().map(|(range, text)| {
13015 (range, text.to_string().map(Arc::<str>::from))
13016 }),
13017 None,
13018 cx,
13019 );
13020 });
13021 }
13022 }
13023 });
13024 self.change_selections(None, cx, |selections| selections.refresh());
13025 }
13026
13027 pub fn to_pixel_point(
13028 &mut self,
13029 source: multi_buffer::Anchor,
13030 editor_snapshot: &EditorSnapshot,
13031 cx: &mut ViewContext<Self>,
13032 ) -> Option<gpui::Point<Pixels>> {
13033 let source_point = source.to_display_point(editor_snapshot);
13034 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13035 }
13036
13037 pub fn display_to_pixel_point(
13038 &self,
13039 source: DisplayPoint,
13040 editor_snapshot: &EditorSnapshot,
13041 cx: &WindowContext,
13042 ) -> Option<gpui::Point<Pixels>> {
13043 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13044 let text_layout_details = self.text_layout_details(cx);
13045 let scroll_top = text_layout_details
13046 .scroll_anchor
13047 .scroll_position(editor_snapshot)
13048 .y;
13049
13050 if source.row().as_f32() < scroll_top.floor() {
13051 return None;
13052 }
13053 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13054 let source_y = line_height * (source.row().as_f32() - scroll_top);
13055 Some(gpui::Point::new(source_x, source_y))
13056 }
13057
13058 pub fn has_active_completions_menu(&self) -> bool {
13059 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13060 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13061 })
13062 }
13063
13064 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13065 self.addons
13066 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13067 }
13068
13069 pub fn unregister_addon<T: Addon>(&mut self) {
13070 self.addons.remove(&std::any::TypeId::of::<T>());
13071 }
13072
13073 pub fn addon<T: Addon>(&self) -> Option<&T> {
13074 let type_id = std::any::TypeId::of::<T>();
13075 self.addons
13076 .get(&type_id)
13077 .and_then(|item| item.to_any().downcast_ref::<T>())
13078 }
13079
13080 pub fn add_change_set(
13081 &mut self,
13082 change_set: Model<BufferChangeSet>,
13083 cx: &mut ViewContext<Self>,
13084 ) {
13085 self.diff_map.add_change_set(change_set, cx);
13086 }
13087
13088 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13089 let text_layout_details = self.text_layout_details(cx);
13090 let style = &text_layout_details.editor_style;
13091 let font_id = cx.text_system().resolve_font(&style.text.font());
13092 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13093 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13094
13095 let em_width = cx
13096 .text_system()
13097 .typographic_bounds(font_id, font_size, 'm')
13098 .unwrap()
13099 .size
13100 .width;
13101
13102 gpui::Point::new(em_width, line_height)
13103 }
13104}
13105
13106fn get_unstaged_changes_for_buffers(
13107 project: &Model<Project>,
13108 buffers: impl IntoIterator<Item = Model<Buffer>>,
13109 cx: &mut ViewContext<Editor>,
13110) {
13111 let mut tasks = Vec::new();
13112 project.update(cx, |project, cx| {
13113 for buffer in buffers {
13114 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13115 }
13116 });
13117 cx.spawn(|this, mut cx| async move {
13118 let change_sets = futures::future::join_all(tasks).await;
13119 this.update(&mut cx, |this, cx| {
13120 for change_set in change_sets {
13121 if let Some(change_set) = change_set.log_err() {
13122 this.diff_map.add_change_set(change_set, cx);
13123 }
13124 }
13125 })
13126 .ok();
13127 })
13128 .detach();
13129}
13130
13131fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13132 let tab_size = tab_size.get() as usize;
13133 let mut width = offset;
13134
13135 for ch in text.chars() {
13136 width += if ch == '\t' {
13137 tab_size - (width % tab_size)
13138 } else {
13139 1
13140 };
13141 }
13142
13143 width - offset
13144}
13145
13146#[cfg(test)]
13147mod tests {
13148 use super::*;
13149
13150 #[test]
13151 fn test_string_size_with_expanded_tabs() {
13152 let nz = |val| NonZeroU32::new(val).unwrap();
13153 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13154 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13155 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13156 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13157 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13158 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13159 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13160 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13161 }
13162}
13163
13164/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13165struct WordBreakingTokenizer<'a> {
13166 input: &'a str,
13167}
13168
13169impl<'a> WordBreakingTokenizer<'a> {
13170 fn new(input: &'a str) -> Self {
13171 Self { input }
13172 }
13173}
13174
13175fn is_char_ideographic(ch: char) -> bool {
13176 use unicode_script::Script::*;
13177 use unicode_script::UnicodeScript;
13178 matches!(ch.script(), Han | Tangut | Yi)
13179}
13180
13181fn is_grapheme_ideographic(text: &str) -> bool {
13182 text.chars().any(is_char_ideographic)
13183}
13184
13185fn is_grapheme_whitespace(text: &str) -> bool {
13186 text.chars().any(|x| x.is_whitespace())
13187}
13188
13189fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13190 text.chars().next().map_or(false, |ch| {
13191 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13192 })
13193}
13194
13195#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13196struct WordBreakToken<'a> {
13197 token: &'a str,
13198 grapheme_len: usize,
13199 is_whitespace: bool,
13200}
13201
13202impl<'a> Iterator for WordBreakingTokenizer<'a> {
13203 /// Yields a span, the count of graphemes in the token, and whether it was
13204 /// whitespace. Note that it also breaks at word boundaries.
13205 type Item = WordBreakToken<'a>;
13206
13207 fn next(&mut self) -> Option<Self::Item> {
13208 use unicode_segmentation::UnicodeSegmentation;
13209 if self.input.is_empty() {
13210 return None;
13211 }
13212
13213 let mut iter = self.input.graphemes(true).peekable();
13214 let mut offset = 0;
13215 let mut graphemes = 0;
13216 if let Some(first_grapheme) = iter.next() {
13217 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13218 offset += first_grapheme.len();
13219 graphemes += 1;
13220 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13221 if let Some(grapheme) = iter.peek().copied() {
13222 if should_stay_with_preceding_ideograph(grapheme) {
13223 offset += grapheme.len();
13224 graphemes += 1;
13225 }
13226 }
13227 } else {
13228 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13229 let mut next_word_bound = words.peek().copied();
13230 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13231 next_word_bound = words.next();
13232 }
13233 while let Some(grapheme) = iter.peek().copied() {
13234 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13235 break;
13236 };
13237 if is_grapheme_whitespace(grapheme) != is_whitespace {
13238 break;
13239 };
13240 offset += grapheme.len();
13241 graphemes += 1;
13242 iter.next();
13243 }
13244 }
13245 let token = &self.input[..offset];
13246 self.input = &self.input[offset..];
13247 if is_whitespace {
13248 Some(WordBreakToken {
13249 token: " ",
13250 grapheme_len: 1,
13251 is_whitespace: true,
13252 })
13253 } else {
13254 Some(WordBreakToken {
13255 token,
13256 grapheme_len: graphemes,
13257 is_whitespace: false,
13258 })
13259 }
13260 } else {
13261 None
13262 }
13263 }
13264}
13265
13266#[test]
13267fn test_word_breaking_tokenizer() {
13268 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13269 ("", &[]),
13270 (" ", &[(" ", 1, true)]),
13271 ("Ʒ", &[("Ʒ", 1, false)]),
13272 ("Ǽ", &[("Ǽ", 1, false)]),
13273 ("⋑", &[("⋑", 1, false)]),
13274 ("⋑⋑", &[("⋑⋑", 2, false)]),
13275 (
13276 "原理，进而",
13277 &[
13278 ("原", 1, false),
13279 ("理，", 2, false),
13280 ("进", 1, false),
13281 ("而", 1, false),
13282 ],
13283 ),
13284 (
13285 "hello world",
13286 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13287 ),
13288 (
13289 "hello, world",
13290 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13291 ),
13292 (
13293 " hello world",
13294 &[
13295 (" ", 1, true),
13296 ("hello", 5, false),
13297 (" ", 1, true),
13298 ("world", 5, false),
13299 ],
13300 ),
13301 (
13302 "这是什么 \n 钢笔",
13303 &[
13304 ("这", 1, false),
13305 ("是", 1, false),
13306 ("什", 1, false),
13307 ("么", 1, false),
13308 (" ", 1, true),
13309 ("钢", 1, false),
13310 ("笔", 1, false),
13311 ],
13312 ),
13313 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13314 ];
13315
13316 for (input, result) in tests {
13317 assert_eq!(
13318 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13319 result
13320 .iter()
13321 .copied()
13322 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13323 token,
13324 grapheme_len,
13325 is_whitespace,
13326 })
13327 .collect::<Vec<_>>()
13328 );
13329 }
13330}
13331
13332fn wrap_with_prefix(
13333 line_prefix: String,
13334 unwrapped_text: String,
13335 wrap_column: usize,
13336 tab_size: NonZeroU32,
13337) -> String {
13338 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13339 let mut wrapped_text = String::new();
13340 let mut current_line = line_prefix.clone();
13341
13342 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13343 let mut current_line_len = line_prefix_len;
13344 for WordBreakToken {
13345 token,
13346 grapheme_len,
13347 is_whitespace,
13348 } in tokenizer
13349 {
13350 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13351 wrapped_text.push_str(current_line.trim_end());
13352 wrapped_text.push('\n');
13353 current_line.truncate(line_prefix.len());
13354 current_line_len = line_prefix_len;
13355 if !is_whitespace {
13356 current_line.push_str(token);
13357 current_line_len += grapheme_len;
13358 }
13359 } else if !is_whitespace {
13360 current_line.push_str(token);
13361 current_line_len += grapheme_len;
13362 } else if current_line_len != line_prefix_len {
13363 current_line.push(' ');
13364 current_line_len += 1;
13365 }
13366 }
13367
13368 if !current_line.is_empty() {
13369 wrapped_text.push_str(¤t_line);
13370 }
13371 wrapped_text
13372}
13373
13374#[test]
13375fn test_wrap_with_prefix() {
13376 assert_eq!(
13377 wrap_with_prefix(
13378 "# ".to_string(),
13379 "abcdefg".to_string(),
13380 4,
13381 NonZeroU32::new(4).unwrap()
13382 ),
13383 "# abcdefg"
13384 );
13385 assert_eq!(
13386 wrap_with_prefix(
13387 "".to_string(),
13388 "\thello world".to_string(),
13389 8,
13390 NonZeroU32::new(4).unwrap()
13391 ),
13392 "hello\nworld"
13393 );
13394 assert_eq!(
13395 wrap_with_prefix(
13396 "// ".to_string(),
13397 "xx \nyy zz aa bb cc".to_string(),
13398 12,
13399 NonZeroU32::new(4).unwrap()
13400 ),
13401 "// xx yy zz\n// aa bb cc"
13402 );
13403 assert_eq!(
13404 wrap_with_prefix(
13405 String::new(),
13406 "这是什么 \n 钢笔".to_string(),
13407 3,
13408 NonZeroU32::new(4).unwrap()
13409 ),
13410 "这是什\n么 钢\n笔"
13411 );
13412}
13413
13414fn hunks_for_selections(
13415 snapshot: &EditorSnapshot,
13416 selections: &[Selection<Point>],
13417) -> Vec<MultiBufferDiffHunk> {
13418 hunks_for_ranges(
13419 selections.iter().map(|selection| selection.range()),
13420 snapshot,
13421 )
13422}
13423
13424pub fn hunks_for_ranges(
13425 ranges: impl Iterator<Item = Range<Point>>,
13426 snapshot: &EditorSnapshot,
13427) -> Vec<MultiBufferDiffHunk> {
13428 let mut hunks = Vec::new();
13429 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13430 HashMap::default();
13431 for query_range in ranges {
13432 let query_rows =
13433 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13434 for hunk in snapshot.diff_map.diff_hunks_in_range(
13435 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13436 &snapshot.buffer_snapshot,
13437 ) {
13438 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13439 // when the caret is just above or just below the deleted hunk.
13440 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13441 let related_to_selection = if allow_adjacent {
13442 hunk.row_range.overlaps(&query_rows)
13443 || hunk.row_range.start == query_rows.end
13444 || hunk.row_range.end == query_rows.start
13445 } else {
13446 hunk.row_range.overlaps(&query_rows)
13447 };
13448 if related_to_selection {
13449 if !processed_buffer_rows
13450 .entry(hunk.buffer_id)
13451 .or_default()
13452 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13453 {
13454 continue;
13455 }
13456 hunks.push(hunk);
13457 }
13458 }
13459 }
13460
13461 hunks
13462}
13463
13464pub trait CollaborationHub {
13465 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13466 fn user_participant_indices<'a>(
13467 &self,
13468 cx: &'a AppContext,
13469 ) -> &'a HashMap<u64, ParticipantIndex>;
13470 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13471}
13472
13473impl CollaborationHub for Model<Project> {
13474 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13475 self.read(cx).collaborators()
13476 }
13477
13478 fn user_participant_indices<'a>(
13479 &self,
13480 cx: &'a AppContext,
13481 ) -> &'a HashMap<u64, ParticipantIndex> {
13482 self.read(cx).user_store().read(cx).participant_indices()
13483 }
13484
13485 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13486 let this = self.read(cx);
13487 let user_ids = this.collaborators().values().map(|c| c.user_id);
13488 this.user_store().read_with(cx, |user_store, cx| {
13489 user_store.participant_names(user_ids, cx)
13490 })
13491 }
13492}
13493
13494pub trait SemanticsProvider {
13495 fn hover(
13496 &self,
13497 buffer: &Model<Buffer>,
13498 position: text::Anchor,
13499 cx: &mut AppContext,
13500 ) -> Option<Task<Vec<project::Hover>>>;
13501
13502 fn inlay_hints(
13503 &self,
13504 buffer_handle: Model<Buffer>,
13505 range: Range<text::Anchor>,
13506 cx: &mut AppContext,
13507 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13508
13509 fn resolve_inlay_hint(
13510 &self,
13511 hint: InlayHint,
13512 buffer_handle: Model<Buffer>,
13513 server_id: LanguageServerId,
13514 cx: &mut AppContext,
13515 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13516
13517 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13518
13519 fn document_highlights(
13520 &self,
13521 buffer: &Model<Buffer>,
13522 position: text::Anchor,
13523 cx: &mut AppContext,
13524 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13525
13526 fn definitions(
13527 &self,
13528 buffer: &Model<Buffer>,
13529 position: text::Anchor,
13530 kind: GotoDefinitionKind,
13531 cx: &mut AppContext,
13532 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13533
13534 fn range_for_rename(
13535 &self,
13536 buffer: &Model<Buffer>,
13537 position: text::Anchor,
13538 cx: &mut AppContext,
13539 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13540
13541 fn perform_rename(
13542 &self,
13543 buffer: &Model<Buffer>,
13544 position: text::Anchor,
13545 new_name: String,
13546 cx: &mut AppContext,
13547 ) -> Option<Task<Result<ProjectTransaction>>>;
13548}
13549
13550pub trait CompletionProvider {
13551 fn completions(
13552 &self,
13553 buffer: &Model<Buffer>,
13554 buffer_position: text::Anchor,
13555 trigger: CompletionContext,
13556 cx: &mut ViewContext<Editor>,
13557 ) -> Task<Result<Vec<Completion>>>;
13558
13559 fn resolve_completions(
13560 &self,
13561 buffer: Model<Buffer>,
13562 completion_indices: Vec<usize>,
13563 completions: Rc<RefCell<Box<[Completion]>>>,
13564 cx: &mut ViewContext<Editor>,
13565 ) -> Task<Result<bool>>;
13566
13567 fn apply_additional_edits_for_completion(
13568 &self,
13569 _buffer: Model<Buffer>,
13570 _completions: Rc<RefCell<Box<[Completion]>>>,
13571 _completion_index: usize,
13572 _push_to_history: bool,
13573 _cx: &mut ViewContext<Editor>,
13574 ) -> Task<Result<Option<language::Transaction>>> {
13575 Task::ready(Ok(None))
13576 }
13577
13578 fn is_completion_trigger(
13579 &self,
13580 buffer: &Model<Buffer>,
13581 position: language::Anchor,
13582 text: &str,
13583 trigger_in_words: bool,
13584 cx: &mut ViewContext<Editor>,
13585 ) -> bool;
13586
13587 fn sort_completions(&self) -> bool {
13588 true
13589 }
13590}
13591
13592pub trait CodeActionProvider {
13593 fn code_actions(
13594 &self,
13595 buffer: &Model<Buffer>,
13596 range: Range<text::Anchor>,
13597 cx: &mut WindowContext,
13598 ) -> Task<Result<Vec<CodeAction>>>;
13599
13600 fn apply_code_action(
13601 &self,
13602 buffer_handle: Model<Buffer>,
13603 action: CodeAction,
13604 excerpt_id: ExcerptId,
13605 push_to_history: bool,
13606 cx: &mut WindowContext,
13607 ) -> Task<Result<ProjectTransaction>>;
13608}
13609
13610impl CodeActionProvider for Model<Project> {
13611 fn code_actions(
13612 &self,
13613 buffer: &Model<Buffer>,
13614 range: Range<text::Anchor>,
13615 cx: &mut WindowContext,
13616 ) -> Task<Result<Vec<CodeAction>>> {
13617 self.update(cx, |project, cx| {
13618 project.code_actions(buffer, range, None, cx)
13619 })
13620 }
13621
13622 fn apply_code_action(
13623 &self,
13624 buffer_handle: Model<Buffer>,
13625 action: CodeAction,
13626 _excerpt_id: ExcerptId,
13627 push_to_history: bool,
13628 cx: &mut WindowContext,
13629 ) -> Task<Result<ProjectTransaction>> {
13630 self.update(cx, |project, cx| {
13631 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13632 })
13633 }
13634}
13635
13636fn snippet_completions(
13637 project: &Project,
13638 buffer: &Model<Buffer>,
13639 buffer_position: text::Anchor,
13640 cx: &mut AppContext,
13641) -> Task<Result<Vec<Completion>>> {
13642 let language = buffer.read(cx).language_at(buffer_position);
13643 let language_name = language.as_ref().map(|language| language.lsp_id());
13644 let snippet_store = project.snippets().read(cx);
13645 let snippets = snippet_store.snippets_for(language_name, cx);
13646
13647 if snippets.is_empty() {
13648 return Task::ready(Ok(vec![]));
13649 }
13650 let snapshot = buffer.read(cx).text_snapshot();
13651 let chars: String = snapshot
13652 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13653 .collect();
13654
13655 let scope = language.map(|language| language.default_scope());
13656 let executor = cx.background_executor().clone();
13657
13658 cx.background_executor().spawn(async move {
13659 let classifier = CharClassifier::new(scope).for_completion(true);
13660 let mut last_word = chars
13661 .chars()
13662 .take_while(|c| classifier.is_word(*c))
13663 .collect::<String>();
13664 last_word = last_word.chars().rev().collect();
13665
13666 if last_word.is_empty() {
13667 return Ok(vec![]);
13668 }
13669
13670 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13671 let to_lsp = |point: &text::Anchor| {
13672 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13673 point_to_lsp(end)
13674 };
13675 let lsp_end = to_lsp(&buffer_position);
13676
13677 let candidates = snippets
13678 .iter()
13679 .enumerate()
13680 .flat_map(|(ix, snippet)| {
13681 snippet
13682 .prefix
13683 .iter()
13684 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13685 })
13686 .collect::<Vec<StringMatchCandidate>>();
13687
13688 let mut matches = fuzzy::match_strings(
13689 &candidates,
13690 &last_word,
13691 last_word.chars().any(|c| c.is_uppercase()),
13692 100,
13693 &Default::default(),
13694 executor,
13695 )
13696 .await;
13697
13698 // Remove all candidates where the query's start does not match the start of any word in the candidate
13699 if let Some(query_start) = last_word.chars().next() {
13700 matches.retain(|string_match| {
13701 split_words(&string_match.string).any(|word| {
13702 // Check that the first codepoint of the word as lowercase matches the first
13703 // codepoint of the query as lowercase
13704 word.chars()
13705 .flat_map(|codepoint| codepoint.to_lowercase())
13706 .zip(query_start.to_lowercase())
13707 .all(|(word_cp, query_cp)| word_cp == query_cp)
13708 })
13709 });
13710 }
13711
13712 let matched_strings = matches
13713 .into_iter()
13714 .map(|m| m.string)
13715 .collect::<HashSet<_>>();
13716
13717 let result: Vec<Completion> = snippets
13718 .into_iter()
13719 .filter_map(|snippet| {
13720 let matching_prefix = snippet
13721 .prefix
13722 .iter()
13723 .find(|prefix| matched_strings.contains(*prefix))?;
13724 let start = as_offset - last_word.len();
13725 let start = snapshot.anchor_before(start);
13726 let range = start..buffer_position;
13727 let lsp_start = to_lsp(&start);
13728 let lsp_range = lsp::Range {
13729 start: lsp_start,
13730 end: lsp_end,
13731 };
13732 Some(Completion {
13733 old_range: range,
13734 new_text: snippet.body.clone(),
13735 resolved: false,
13736 label: CodeLabel {
13737 text: matching_prefix.clone(),
13738 runs: vec![],
13739 filter_range: 0..matching_prefix.len(),
13740 },
13741 server_id: LanguageServerId(usize::MAX),
13742 documentation: snippet.description.clone().map(Documentation::SingleLine),
13743 lsp_completion: lsp::CompletionItem {
13744 label: snippet.prefix.first().unwrap().clone(),
13745 kind: Some(CompletionItemKind::SNIPPET),
13746 label_details: snippet.description.as_ref().map(|description| {
13747 lsp::CompletionItemLabelDetails {
13748 detail: Some(description.clone()),
13749 description: None,
13750 }
13751 }),
13752 insert_text_format: Some(InsertTextFormat::SNIPPET),
13753 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13754 lsp::InsertReplaceEdit {
13755 new_text: snippet.body.clone(),
13756 insert: lsp_range,
13757 replace: lsp_range,
13758 },
13759 )),
13760 filter_text: Some(snippet.body.clone()),
13761 sort_text: Some(char::MAX.to_string()),
13762 ..Default::default()
13763 },
13764 confirm: None,
13765 })
13766 })
13767 .collect();
13768
13769 Ok(result)
13770 })
13771}
13772
13773impl CompletionProvider for Model<Project> {
13774 fn completions(
13775 &self,
13776 buffer: &Model<Buffer>,
13777 buffer_position: text::Anchor,
13778 options: CompletionContext,
13779 cx: &mut ViewContext<Editor>,
13780 ) -> Task<Result<Vec<Completion>>> {
13781 self.update(cx, |project, cx| {
13782 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13783 let project_completions = project.completions(buffer, buffer_position, options, cx);
13784 cx.background_executor().spawn(async move {
13785 let mut completions = project_completions.await?;
13786 let snippets_completions = snippets.await?;
13787 completions.extend(snippets_completions);
13788 Ok(completions)
13789 })
13790 })
13791 }
13792
13793 fn resolve_completions(
13794 &self,
13795 buffer: Model<Buffer>,
13796 completion_indices: Vec<usize>,
13797 completions: Rc<RefCell<Box<[Completion]>>>,
13798 cx: &mut ViewContext<Editor>,
13799 ) -> Task<Result<bool>> {
13800 self.update(cx, |project, cx| {
13801 project.lsp_store().update(cx, |lsp_store, cx| {
13802 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13803 })
13804 })
13805 }
13806
13807 fn apply_additional_edits_for_completion(
13808 &self,
13809 buffer: Model<Buffer>,
13810 completions: Rc<RefCell<Box<[Completion]>>>,
13811 completion_index: usize,
13812 push_to_history: bool,
13813 cx: &mut ViewContext<Editor>,
13814 ) -> Task<Result<Option<language::Transaction>>> {
13815 self.update(cx, |project, cx| {
13816 project.lsp_store().update(cx, |lsp_store, cx| {
13817 lsp_store.apply_additional_edits_for_completion(
13818 buffer,
13819 completions,
13820 completion_index,
13821 push_to_history,
13822 cx,
13823 )
13824 })
13825 })
13826 }
13827
13828 fn is_completion_trigger(
13829 &self,
13830 buffer: &Model<Buffer>,
13831 position: language::Anchor,
13832 text: &str,
13833 trigger_in_words: bool,
13834 cx: &mut ViewContext<Editor>,
13835 ) -> bool {
13836 let mut chars = text.chars();
13837 let char = if let Some(char) = chars.next() {
13838 char
13839 } else {
13840 return false;
13841 };
13842 if chars.next().is_some() {
13843 return false;
13844 }
13845
13846 let buffer = buffer.read(cx);
13847 let snapshot = buffer.snapshot();
13848 if !snapshot.settings_at(position, cx).show_completions_on_input {
13849 return false;
13850 }
13851 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13852 if trigger_in_words && classifier.is_word(char) {
13853 return true;
13854 }
13855
13856 buffer.completion_triggers().contains(text)
13857 }
13858}
13859
13860impl SemanticsProvider for Model<Project> {
13861 fn hover(
13862 &self,
13863 buffer: &Model<Buffer>,
13864 position: text::Anchor,
13865 cx: &mut AppContext,
13866 ) -> Option<Task<Vec<project::Hover>>> {
13867 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13868 }
13869
13870 fn document_highlights(
13871 &self,
13872 buffer: &Model<Buffer>,
13873 position: text::Anchor,
13874 cx: &mut AppContext,
13875 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13876 Some(self.update(cx, |project, cx| {
13877 project.document_highlights(buffer, position, cx)
13878 }))
13879 }
13880
13881 fn definitions(
13882 &self,
13883 buffer: &Model<Buffer>,
13884 position: text::Anchor,
13885 kind: GotoDefinitionKind,
13886 cx: &mut AppContext,
13887 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13888 Some(self.update(cx, |project, cx| match kind {
13889 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13890 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13891 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13892 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13893 }))
13894 }
13895
13896 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13897 // TODO: make this work for remote projects
13898 self.read(cx)
13899 .language_servers_for_local_buffer(buffer.read(cx), cx)
13900 .any(
13901 |(_, server)| match server.capabilities().inlay_hint_provider {
13902 Some(lsp::OneOf::Left(enabled)) => enabled,
13903 Some(lsp::OneOf::Right(_)) => true,
13904 None => false,
13905 },
13906 )
13907 }
13908
13909 fn inlay_hints(
13910 &self,
13911 buffer_handle: Model<Buffer>,
13912 range: Range<text::Anchor>,
13913 cx: &mut AppContext,
13914 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13915 Some(self.update(cx, |project, cx| {
13916 project.inlay_hints(buffer_handle, range, cx)
13917 }))
13918 }
13919
13920 fn resolve_inlay_hint(
13921 &self,
13922 hint: InlayHint,
13923 buffer_handle: Model<Buffer>,
13924 server_id: LanguageServerId,
13925 cx: &mut AppContext,
13926 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13927 Some(self.update(cx, |project, cx| {
13928 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13929 }))
13930 }
13931
13932 fn range_for_rename(
13933 &self,
13934 buffer: &Model<Buffer>,
13935 position: text::Anchor,
13936 cx: &mut AppContext,
13937 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13938 Some(self.update(cx, |project, cx| {
13939 project.prepare_rename(buffer.clone(), position, cx)
13940 }))
13941 }
13942
13943 fn perform_rename(
13944 &self,
13945 buffer: &Model<Buffer>,
13946 position: text::Anchor,
13947 new_name: String,
13948 cx: &mut AppContext,
13949 ) -> Option<Task<Result<ProjectTransaction>>> {
13950 Some(self.update(cx, |project, cx| {
13951 project.perform_rename(buffer.clone(), position, new_name, cx)
13952 }))
13953 }
13954}
13955
13956fn inlay_hint_settings(
13957 location: Anchor,
13958 snapshot: &MultiBufferSnapshot,
13959 cx: &mut ViewContext<Editor>,
13960) -> InlayHintSettings {
13961 let file = snapshot.file_at(location);
13962 let language = snapshot.language_at(location).map(|l| l.name());
13963 language_settings(language, file, cx).inlay_hints
13964}
13965
13966fn consume_contiguous_rows(
13967 contiguous_row_selections: &mut Vec<Selection<Point>>,
13968 selection: &Selection<Point>,
13969 display_map: &DisplaySnapshot,
13970 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13971) -> (MultiBufferRow, MultiBufferRow) {
13972 contiguous_row_selections.push(selection.clone());
13973 let start_row = MultiBufferRow(selection.start.row);
13974 let mut end_row = ending_row(selection, display_map);
13975
13976 while let Some(next_selection) = selections.peek() {
13977 if next_selection.start.row <= end_row.0 {
13978 end_row = ending_row(next_selection, display_map);
13979 contiguous_row_selections.push(selections.next().unwrap().clone());
13980 } else {
13981 break;
13982 }
13983 }
13984 (start_row, end_row)
13985}
13986
13987fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13988 if next_selection.end.column > 0 || next_selection.is_empty() {
13989 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13990 } else {
13991 MultiBufferRow(next_selection.end.row)
13992 }
13993}
13994
13995impl EditorSnapshot {
13996 pub fn remote_selections_in_range<'a>(
13997 &'a self,
13998 range: &'a Range<Anchor>,
13999 collaboration_hub: &dyn CollaborationHub,
14000 cx: &'a AppContext,
14001 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14002 let participant_names = collaboration_hub.user_names(cx);
14003 let participant_indices = collaboration_hub.user_participant_indices(cx);
14004 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14005 let collaborators_by_replica_id = collaborators_by_peer_id
14006 .iter()
14007 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14008 .collect::<HashMap<_, _>>();
14009 self.buffer_snapshot
14010 .selections_in_range(range, false)
14011 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14012 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14013 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14014 let user_name = participant_names.get(&collaborator.user_id).cloned();
14015 Some(RemoteSelection {
14016 replica_id,
14017 selection,
14018 cursor_shape,
14019 line_mode,
14020 participant_index,
14021 peer_id: collaborator.peer_id,
14022 user_name,
14023 })
14024 })
14025 }
14026
14027 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14028 self.display_snapshot.buffer_snapshot.language_at(position)
14029 }
14030
14031 pub fn is_focused(&self) -> bool {
14032 self.is_focused
14033 }
14034
14035 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14036 self.placeholder_text.as_ref()
14037 }
14038
14039 pub fn scroll_position(&self) -> gpui::Point<f32> {
14040 self.scroll_anchor.scroll_position(&self.display_snapshot)
14041 }
14042
14043 fn gutter_dimensions(
14044 &self,
14045 font_id: FontId,
14046 font_size: Pixels,
14047 em_width: Pixels,
14048 em_advance: Pixels,
14049 max_line_number_width: Pixels,
14050 cx: &AppContext,
14051 ) -> GutterDimensions {
14052 if !self.show_gutter {
14053 return GutterDimensions::default();
14054 }
14055 let descent = cx.text_system().descent(font_id, font_size);
14056
14057 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14058 matches!(
14059 ProjectSettings::get_global(cx).git.git_gutter,
14060 Some(GitGutterSetting::TrackedFiles)
14061 )
14062 });
14063 let gutter_settings = EditorSettings::get_global(cx).gutter;
14064 let show_line_numbers = self
14065 .show_line_numbers
14066 .unwrap_or(gutter_settings.line_numbers);
14067 let line_gutter_width = if show_line_numbers {
14068 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14069 let min_width_for_number_on_gutter = em_advance * 4.0;
14070 max_line_number_width.max(min_width_for_number_on_gutter)
14071 } else {
14072 0.0.into()
14073 };
14074
14075 let show_code_actions = self
14076 .show_code_actions
14077 .unwrap_or(gutter_settings.code_actions);
14078
14079 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14080
14081 let git_blame_entries_width =
14082 self.git_blame_gutter_max_author_length
14083 .map(|max_author_length| {
14084 // Length of the author name, but also space for the commit hash,
14085 // the spacing and the timestamp.
14086 let max_char_count = max_author_length
14087 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14088 + 7 // length of commit sha
14089 + 14 // length of max relative timestamp ("60 minutes ago")
14090 + 4; // gaps and margins
14091
14092 em_advance * max_char_count
14093 });
14094
14095 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14096 left_padding += if show_code_actions || show_runnables {
14097 em_width * 3.0
14098 } else if show_git_gutter && show_line_numbers {
14099 em_width * 2.0
14100 } else if show_git_gutter || show_line_numbers {
14101 em_width
14102 } else {
14103 px(0.)
14104 };
14105
14106 let right_padding = if gutter_settings.folds && show_line_numbers {
14107 em_width * 4.0
14108 } else if gutter_settings.folds {
14109 em_width * 3.0
14110 } else if show_line_numbers {
14111 em_width
14112 } else {
14113 px(0.)
14114 };
14115
14116 GutterDimensions {
14117 left_padding,
14118 right_padding,
14119 width: line_gutter_width + left_padding + right_padding,
14120 margin: -descent,
14121 git_blame_entries_width,
14122 }
14123 }
14124
14125 pub fn render_crease_toggle(
14126 &self,
14127 buffer_row: MultiBufferRow,
14128 row_contains_cursor: bool,
14129 editor: View<Editor>,
14130 cx: &mut WindowContext,
14131 ) -> Option<AnyElement> {
14132 let folded = self.is_line_folded(buffer_row);
14133 let mut is_foldable = false;
14134
14135 if let Some(crease) = self
14136 .crease_snapshot
14137 .query_row(buffer_row, &self.buffer_snapshot)
14138 {
14139 is_foldable = true;
14140 match crease {
14141 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14142 if let Some(render_toggle) = render_toggle {
14143 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14144 if folded {
14145 editor.update(cx, |editor, cx| {
14146 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14147 });
14148 } else {
14149 editor.update(cx, |editor, cx| {
14150 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14151 });
14152 }
14153 });
14154 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14155 }
14156 }
14157 }
14158 }
14159
14160 is_foldable |= self.starts_indent(buffer_row);
14161
14162 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14163 Some(
14164 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14165 .toggle_state(folded)
14166 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14167 if folded {
14168 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14169 } else {
14170 this.fold_at(&FoldAt { buffer_row }, cx);
14171 }
14172 }))
14173 .into_any_element(),
14174 )
14175 } else {
14176 None
14177 }
14178 }
14179
14180 pub fn render_crease_trailer(
14181 &self,
14182 buffer_row: MultiBufferRow,
14183 cx: &mut WindowContext,
14184 ) -> Option<AnyElement> {
14185 let folded = self.is_line_folded(buffer_row);
14186 if let Crease::Inline { render_trailer, .. } = self
14187 .crease_snapshot
14188 .query_row(buffer_row, &self.buffer_snapshot)?
14189 {
14190 let render_trailer = render_trailer.as_ref()?;
14191 Some(render_trailer(buffer_row, folded, cx))
14192 } else {
14193 None
14194 }
14195 }
14196}
14197
14198impl Deref for EditorSnapshot {
14199 type Target = DisplaySnapshot;
14200
14201 fn deref(&self) -> &Self::Target {
14202 &self.display_snapshot
14203 }
14204}
14205
14206#[derive(Clone, Debug, PartialEq, Eq)]
14207pub enum EditorEvent {
14208 InputIgnored {
14209 text: Arc<str>,
14210 },
14211 InputHandled {
14212 utf16_range_to_replace: Option<Range<isize>>,
14213 text: Arc<str>,
14214 },
14215 ExcerptsAdded {
14216 buffer: Model<Buffer>,
14217 predecessor: ExcerptId,
14218 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14219 },
14220 ExcerptsRemoved {
14221 ids: Vec<ExcerptId>,
14222 },
14223 BufferFoldToggled {
14224 ids: Vec<ExcerptId>,
14225 folded: bool,
14226 },
14227 ExcerptsEdited {
14228 ids: Vec<ExcerptId>,
14229 },
14230 ExcerptsExpanded {
14231 ids: Vec<ExcerptId>,
14232 },
14233 BufferEdited,
14234 Edited {
14235 transaction_id: clock::Lamport,
14236 },
14237 Reparsed(BufferId),
14238 Focused,
14239 FocusedIn,
14240 Blurred,
14241 DirtyChanged,
14242 Saved,
14243 TitleChanged,
14244 DiffBaseChanged,
14245 SelectionsChanged {
14246 local: bool,
14247 },
14248 ScrollPositionChanged {
14249 local: bool,
14250 autoscroll: bool,
14251 },
14252 Closed,
14253 TransactionUndone {
14254 transaction_id: clock::Lamport,
14255 },
14256 TransactionBegun {
14257 transaction_id: clock::Lamport,
14258 },
14259 Reloaded,
14260 CursorShapeChanged,
14261}
14262
14263impl EventEmitter<EditorEvent> for Editor {}
14264
14265impl FocusableView for Editor {
14266 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14267 self.focus_handle.clone()
14268 }
14269}
14270
14271impl Render for Editor {
14272 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14273 let settings = ThemeSettings::get_global(cx);
14274
14275 let mut text_style = match self.mode {
14276 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14277 color: cx.theme().colors().editor_foreground,
14278 font_family: settings.ui_font.family.clone(),
14279 font_features: settings.ui_font.features.clone(),
14280 font_fallbacks: settings.ui_font.fallbacks.clone(),
14281 font_size: rems(0.875).into(),
14282 font_weight: settings.ui_font.weight,
14283 line_height: relative(settings.buffer_line_height.value()),
14284 ..Default::default()
14285 },
14286 EditorMode::Full => TextStyle {
14287 color: cx.theme().colors().editor_foreground,
14288 font_family: settings.buffer_font.family.clone(),
14289 font_features: settings.buffer_font.features.clone(),
14290 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14291 font_size: settings.buffer_font_size(cx).into(),
14292 font_weight: settings.buffer_font.weight,
14293 line_height: relative(settings.buffer_line_height.value()),
14294 ..Default::default()
14295 },
14296 };
14297 if let Some(text_style_refinement) = &self.text_style_refinement {
14298 text_style.refine(text_style_refinement)
14299 }
14300
14301 let background = match self.mode {
14302 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14303 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14304 EditorMode::Full => cx.theme().colors().editor_background,
14305 };
14306
14307 EditorElement::new(
14308 cx.view(),
14309 EditorStyle {
14310 background,
14311 local_player: cx.theme().players().local(),
14312 text: text_style,
14313 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14314 syntax: cx.theme().syntax().clone(),
14315 status: cx.theme().status().clone(),
14316 inlay_hints_style: make_inlay_hints_style(cx),
14317 inline_completion_styles: make_suggestion_styles(cx),
14318 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14319 },
14320 )
14321 }
14322}
14323
14324impl ViewInputHandler for Editor {
14325 fn text_for_range(
14326 &mut self,
14327 range_utf16: Range<usize>,
14328 adjusted_range: &mut Option<Range<usize>>,
14329 cx: &mut ViewContext<Self>,
14330 ) -> Option<String> {
14331 let snapshot = self.buffer.read(cx).read(cx);
14332 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14333 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14334 if (start.0..end.0) != range_utf16 {
14335 adjusted_range.replace(start.0..end.0);
14336 }
14337 Some(snapshot.text_for_range(start..end).collect())
14338 }
14339
14340 fn selected_text_range(
14341 &mut self,
14342 ignore_disabled_input: bool,
14343 cx: &mut ViewContext<Self>,
14344 ) -> Option<UTF16Selection> {
14345 // Prevent the IME menu from appearing when holding down an alphabetic key
14346 // while input is disabled.
14347 if !ignore_disabled_input && !self.input_enabled {
14348 return None;
14349 }
14350
14351 let selection = self.selections.newest::<OffsetUtf16>(cx);
14352 let range = selection.range();
14353
14354 Some(UTF16Selection {
14355 range: range.start.0..range.end.0,
14356 reversed: selection.reversed,
14357 })
14358 }
14359
14360 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14361 let snapshot = self.buffer.read(cx).read(cx);
14362 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14363 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14364 }
14365
14366 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14367 self.clear_highlights::<InputComposition>(cx);
14368 self.ime_transaction.take();
14369 }
14370
14371 fn replace_text_in_range(
14372 &mut self,
14373 range_utf16: Option<Range<usize>>,
14374 text: &str,
14375 cx: &mut ViewContext<Self>,
14376 ) {
14377 if !self.input_enabled {
14378 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14379 return;
14380 }
14381
14382 self.transact(cx, |this, cx| {
14383 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14384 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14385 Some(this.selection_replacement_ranges(range_utf16, cx))
14386 } else {
14387 this.marked_text_ranges(cx)
14388 };
14389
14390 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14391 let newest_selection_id = this.selections.newest_anchor().id;
14392 this.selections
14393 .all::<OffsetUtf16>(cx)
14394 .iter()
14395 .zip(ranges_to_replace.iter())
14396 .find_map(|(selection, range)| {
14397 if selection.id == newest_selection_id {
14398 Some(
14399 (range.start.0 as isize - selection.head().0 as isize)
14400 ..(range.end.0 as isize - selection.head().0 as isize),
14401 )
14402 } else {
14403 None
14404 }
14405 })
14406 });
14407
14408 cx.emit(EditorEvent::InputHandled {
14409 utf16_range_to_replace: range_to_replace,
14410 text: text.into(),
14411 });
14412
14413 if let Some(new_selected_ranges) = new_selected_ranges {
14414 this.change_selections(None, cx, |selections| {
14415 selections.select_ranges(new_selected_ranges)
14416 });
14417 this.backspace(&Default::default(), cx);
14418 }
14419
14420 this.handle_input(text, cx);
14421 });
14422
14423 if let Some(transaction) = self.ime_transaction {
14424 self.buffer.update(cx, |buffer, cx| {
14425 buffer.group_until_transaction(transaction, cx);
14426 });
14427 }
14428
14429 self.unmark_text(cx);
14430 }
14431
14432 fn replace_and_mark_text_in_range(
14433 &mut self,
14434 range_utf16: Option<Range<usize>>,
14435 text: &str,
14436 new_selected_range_utf16: Option<Range<usize>>,
14437 cx: &mut ViewContext<Self>,
14438 ) {
14439 if !self.input_enabled {
14440 return;
14441 }
14442
14443 let transaction = self.transact(cx, |this, cx| {
14444 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14445 let snapshot = this.buffer.read(cx).read(cx);
14446 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14447 for marked_range in &mut marked_ranges {
14448 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14449 marked_range.start.0 += relative_range_utf16.start;
14450 marked_range.start =
14451 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14452 marked_range.end =
14453 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14454 }
14455 }
14456 Some(marked_ranges)
14457 } else if let Some(range_utf16) = range_utf16 {
14458 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14459 Some(this.selection_replacement_ranges(range_utf16, cx))
14460 } else {
14461 None
14462 };
14463
14464 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14465 let newest_selection_id = this.selections.newest_anchor().id;
14466 this.selections
14467 .all::<OffsetUtf16>(cx)
14468 .iter()
14469 .zip(ranges_to_replace.iter())
14470 .find_map(|(selection, range)| {
14471 if selection.id == newest_selection_id {
14472 Some(
14473 (range.start.0 as isize - selection.head().0 as isize)
14474 ..(range.end.0 as isize - selection.head().0 as isize),
14475 )
14476 } else {
14477 None
14478 }
14479 })
14480 });
14481
14482 cx.emit(EditorEvent::InputHandled {
14483 utf16_range_to_replace: range_to_replace,
14484 text: text.into(),
14485 });
14486
14487 if let Some(ranges) = ranges_to_replace {
14488 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14489 }
14490
14491 let marked_ranges = {
14492 let snapshot = this.buffer.read(cx).read(cx);
14493 this.selections
14494 .disjoint_anchors()
14495 .iter()
14496 .map(|selection| {
14497 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14498 })
14499 .collect::<Vec<_>>()
14500 };
14501
14502 if text.is_empty() {
14503 this.unmark_text(cx);
14504 } else {
14505 this.highlight_text::<InputComposition>(
14506 marked_ranges.clone(),
14507 HighlightStyle {
14508 underline: Some(UnderlineStyle {
14509 thickness: px(1.),
14510 color: None,
14511 wavy: false,
14512 }),
14513 ..Default::default()
14514 },
14515 cx,
14516 );
14517 }
14518
14519 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14520 let use_autoclose = this.use_autoclose;
14521 let use_auto_surround = this.use_auto_surround;
14522 this.set_use_autoclose(false);
14523 this.set_use_auto_surround(false);
14524 this.handle_input(text, cx);
14525 this.set_use_autoclose(use_autoclose);
14526 this.set_use_auto_surround(use_auto_surround);
14527
14528 if let Some(new_selected_range) = new_selected_range_utf16 {
14529 let snapshot = this.buffer.read(cx).read(cx);
14530 let new_selected_ranges = marked_ranges
14531 .into_iter()
14532 .map(|marked_range| {
14533 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14534 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14535 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14536 snapshot.clip_offset_utf16(new_start, Bias::Left)
14537 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14538 })
14539 .collect::<Vec<_>>();
14540
14541 drop(snapshot);
14542 this.change_selections(None, cx, |selections| {
14543 selections.select_ranges(new_selected_ranges)
14544 });
14545 }
14546 });
14547
14548 self.ime_transaction = self.ime_transaction.or(transaction);
14549 if let Some(transaction) = self.ime_transaction {
14550 self.buffer.update(cx, |buffer, cx| {
14551 buffer.group_until_transaction(transaction, cx);
14552 });
14553 }
14554
14555 if self.text_highlights::<InputComposition>(cx).is_none() {
14556 self.ime_transaction.take();
14557 }
14558 }
14559
14560 fn bounds_for_range(
14561 &mut self,
14562 range_utf16: Range<usize>,
14563 element_bounds: gpui::Bounds<Pixels>,
14564 cx: &mut ViewContext<Self>,
14565 ) -> Option<gpui::Bounds<Pixels>> {
14566 let text_layout_details = self.text_layout_details(cx);
14567 let gpui::Point {
14568 x: em_width,
14569 y: line_height,
14570 } = self.character_size(cx);
14571
14572 let snapshot = self.snapshot(cx);
14573 let scroll_position = snapshot.scroll_position();
14574 let scroll_left = scroll_position.x * em_width;
14575
14576 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14577 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14578 + self.gutter_dimensions.width
14579 + self.gutter_dimensions.margin;
14580 let y = line_height * (start.row().as_f32() - scroll_position.y);
14581
14582 Some(Bounds {
14583 origin: element_bounds.origin + point(x, y),
14584 size: size(em_width, line_height),
14585 })
14586 }
14587}
14588
14589trait SelectionExt {
14590 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14591 fn spanned_rows(
14592 &self,
14593 include_end_if_at_line_start: bool,
14594 map: &DisplaySnapshot,
14595 ) -> Range<MultiBufferRow>;
14596}
14597
14598impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14599 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14600 let start = self
14601 .start
14602 .to_point(&map.buffer_snapshot)
14603 .to_display_point(map);
14604 let end = self
14605 .end
14606 .to_point(&map.buffer_snapshot)
14607 .to_display_point(map);
14608 if self.reversed {
14609 end..start
14610 } else {
14611 start..end
14612 }
14613 }
14614
14615 fn spanned_rows(
14616 &self,
14617 include_end_if_at_line_start: bool,
14618 map: &DisplaySnapshot,
14619 ) -> Range<MultiBufferRow> {
14620 let start = self.start.to_point(&map.buffer_snapshot);
14621 let mut end = self.end.to_point(&map.buffer_snapshot);
14622 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14623 end.row -= 1;
14624 }
14625
14626 let buffer_start = map.prev_line_boundary(start).0;
14627 let buffer_end = map.next_line_boundary(end).0;
14628 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14629 }
14630}
14631
14632impl<T: InvalidationRegion> InvalidationStack<T> {
14633 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14634 where
14635 S: Clone + ToOffset,
14636 {
14637 while let Some(region) = self.last() {
14638 let all_selections_inside_invalidation_ranges =
14639 if selections.len() == region.ranges().len() {
14640 selections
14641 .iter()
14642 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14643 .all(|(selection, invalidation_range)| {
14644 let head = selection.head().to_offset(buffer);
14645 invalidation_range.start <= head && invalidation_range.end >= head
14646 })
14647 } else {
14648 false
14649 };
14650
14651 if all_selections_inside_invalidation_ranges {
14652 break;
14653 } else {
14654 self.pop();
14655 }
14656 }
14657 }
14658}
14659
14660impl<T> Default for InvalidationStack<T> {
14661 fn default() -> Self {
14662 Self(Default::default())
14663 }
14664}
14665
14666impl<T> Deref for InvalidationStack<T> {
14667 type Target = Vec<T>;
14668
14669 fn deref(&self) -> &Self::Target {
14670 &self.0
14671 }
14672}
14673
14674impl<T> DerefMut for InvalidationStack<T> {
14675 fn deref_mut(&mut self) -> &mut Self::Target {
14676 &mut self.0
14677 }
14678}
14679
14680impl InvalidationRegion for SnippetState {
14681 fn ranges(&self) -> &[Range<Anchor>] {
14682 &self.ranges[self.active_index]
14683 }
14684}
14685
14686pub fn diagnostic_block_renderer(
14687 diagnostic: Diagnostic,
14688 max_message_rows: Option<u8>,
14689 allow_closing: bool,
14690 _is_valid: bool,
14691) -> RenderBlock {
14692 let (text_without_backticks, code_ranges) =
14693 highlight_diagnostic_message(&diagnostic, max_message_rows);
14694
14695 Arc::new(move |cx: &mut BlockContext| {
14696 let group_id: SharedString = cx.block_id.to_string().into();
14697
14698 let mut text_style = cx.text_style().clone();
14699 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14700 let theme_settings = ThemeSettings::get_global(cx);
14701 text_style.font_family = theme_settings.buffer_font.family.clone();
14702 text_style.font_style = theme_settings.buffer_font.style;
14703 text_style.font_features = theme_settings.buffer_font.features.clone();
14704 text_style.font_weight = theme_settings.buffer_font.weight;
14705
14706 let multi_line_diagnostic = diagnostic.message.contains('\n');
14707
14708 let buttons = |diagnostic: &Diagnostic| {
14709 if multi_line_diagnostic {
14710 v_flex()
14711 } else {
14712 h_flex()
14713 }
14714 .when(allow_closing, |div| {
14715 div.children(diagnostic.is_primary.then(|| {
14716 IconButton::new("close-block", IconName::XCircle)
14717 .icon_color(Color::Muted)
14718 .size(ButtonSize::Compact)
14719 .style(ButtonStyle::Transparent)
14720 .visible_on_hover(group_id.clone())
14721 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14722 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14723 }))
14724 })
14725 .child(
14726 IconButton::new("copy-block", IconName::Copy)
14727 .icon_color(Color::Muted)
14728 .size(ButtonSize::Compact)
14729 .style(ButtonStyle::Transparent)
14730 .visible_on_hover(group_id.clone())
14731 .on_click({
14732 let message = diagnostic.message.clone();
14733 move |_click, cx| {
14734 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14735 }
14736 })
14737 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14738 )
14739 };
14740
14741 let icon_size = buttons(&diagnostic)
14742 .into_any_element()
14743 .layout_as_root(AvailableSpace::min_size(), cx);
14744
14745 h_flex()
14746 .id(cx.block_id)
14747 .group(group_id.clone())
14748 .relative()
14749 .size_full()
14750 .block_mouse_down()
14751 .pl(cx.gutter_dimensions.width)
14752 .w(cx.max_width - cx.gutter_dimensions.full_width())
14753 .child(
14754 div()
14755 .flex()
14756 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14757 .flex_shrink(),
14758 )
14759 .child(buttons(&diagnostic))
14760 .child(div().flex().flex_shrink_0().child(
14761 StyledText::new(text_without_backticks.clone()).with_highlights(
14762 &text_style,
14763 code_ranges.iter().map(|range| {
14764 (
14765 range.clone(),
14766 HighlightStyle {
14767 font_weight: Some(FontWeight::BOLD),
14768 ..Default::default()
14769 },
14770 )
14771 }),
14772 ),
14773 ))
14774 .into_any_element()
14775 })
14776}
14777
14778fn inline_completion_edit_text(
14779 editor_snapshot: &EditorSnapshot,
14780 edits: &Vec<(Range<Anchor>, String)>,
14781 include_deletions: bool,
14782 cx: &WindowContext,
14783) -> InlineCompletionText {
14784 let edit_start = edits
14785 .first()
14786 .unwrap()
14787 .0
14788 .start
14789 .to_display_point(editor_snapshot);
14790
14791 let mut text = String::new();
14792 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14793 let mut highlights = Vec::new();
14794 for (old_range, new_text) in edits {
14795 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14796 text.extend(
14797 editor_snapshot
14798 .buffer_snapshot
14799 .chunks(offset..old_offset_range.start, false)
14800 .map(|chunk| chunk.text),
14801 );
14802 offset = old_offset_range.end;
14803
14804 let start = text.len();
14805 let color = if include_deletions && new_text.is_empty() {
14806 text.extend(
14807 editor_snapshot
14808 .buffer_snapshot
14809 .chunks(old_offset_range.start..offset, false)
14810 .map(|chunk| chunk.text),
14811 );
14812 cx.theme().status().deleted_background
14813 } else {
14814 text.push_str(new_text);
14815 cx.theme().status().created_background
14816 };
14817 let end = text.len();
14818
14819 highlights.push((
14820 start..end,
14821 HighlightStyle {
14822 background_color: Some(color),
14823 ..Default::default()
14824 },
14825 ));
14826 }
14827
14828 let edit_end = edits
14829 .last()
14830 .unwrap()
14831 .0
14832 .end
14833 .to_display_point(editor_snapshot);
14834 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14835 .to_offset(editor_snapshot, Bias::Right);
14836 text.extend(
14837 editor_snapshot
14838 .buffer_snapshot
14839 .chunks(offset..end_of_line, false)
14840 .map(|chunk| chunk.text),
14841 );
14842
14843 InlineCompletionText::Edit {
14844 text: text.into(),
14845 highlights,
14846 }
14847}
14848
14849pub fn highlight_diagnostic_message(
14850 diagnostic: &Diagnostic,
14851 mut max_message_rows: Option<u8>,
14852) -> (SharedString, Vec<Range<usize>>) {
14853 let mut text_without_backticks = String::new();
14854 let mut code_ranges = Vec::new();
14855
14856 if let Some(source) = &diagnostic.source {
14857 text_without_backticks.push_str(source);
14858 code_ranges.push(0..source.len());
14859 text_without_backticks.push_str(": ");
14860 }
14861
14862 let mut prev_offset = 0;
14863 let mut in_code_block = false;
14864 let has_row_limit = max_message_rows.is_some();
14865 let mut newline_indices = diagnostic
14866 .message
14867 .match_indices('\n')
14868 .filter(|_| has_row_limit)
14869 .map(|(ix, _)| ix)
14870 .fuse()
14871 .peekable();
14872
14873 for (quote_ix, _) in diagnostic
14874 .message
14875 .match_indices('`')
14876 .chain([(diagnostic.message.len(), "")])
14877 {
14878 let mut first_newline_ix = None;
14879 let mut last_newline_ix = None;
14880 while let Some(newline_ix) = newline_indices.peek() {
14881 if *newline_ix < quote_ix {
14882 if first_newline_ix.is_none() {
14883 first_newline_ix = Some(*newline_ix);
14884 }
14885 last_newline_ix = Some(*newline_ix);
14886
14887 if let Some(rows_left) = &mut max_message_rows {
14888 if *rows_left == 0 {
14889 break;
14890 } else {
14891 *rows_left -= 1;
14892 }
14893 }
14894 let _ = newline_indices.next();
14895 } else {
14896 break;
14897 }
14898 }
14899 let prev_len = text_without_backticks.len();
14900 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14901 text_without_backticks.push_str(new_text);
14902 if in_code_block {
14903 code_ranges.push(prev_len..text_without_backticks.len());
14904 }
14905 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14906 in_code_block = !in_code_block;
14907 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14908 text_without_backticks.push_str("...");
14909 break;
14910 }
14911 }
14912
14913 (text_without_backticks.into(), code_ranges)
14914}
14915
14916fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14917 match severity {
14918 DiagnosticSeverity::ERROR => colors.error,
14919 DiagnosticSeverity::WARNING => colors.warning,
14920 DiagnosticSeverity::INFORMATION => colors.info,
14921 DiagnosticSeverity::HINT => colors.info,
14922 _ => colors.ignored,
14923 }
14924}
14925
14926pub fn styled_runs_for_code_label<'a>(
14927 label: &'a CodeLabel,
14928 syntax_theme: &'a theme::SyntaxTheme,
14929) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14930 let fade_out = HighlightStyle {
14931 fade_out: Some(0.35),
14932 ..Default::default()
14933 };
14934
14935 let mut prev_end = label.filter_range.end;
14936 label
14937 .runs
14938 .iter()
14939 .enumerate()
14940 .flat_map(move |(ix, (range, highlight_id))| {
14941 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14942 style
14943 } else {
14944 return Default::default();
14945 };
14946 let mut muted_style = style;
14947 muted_style.highlight(fade_out);
14948
14949 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14950 if range.start >= label.filter_range.end {
14951 if range.start > prev_end {
14952 runs.push((prev_end..range.start, fade_out));
14953 }
14954 runs.push((range.clone(), muted_style));
14955 } else if range.end <= label.filter_range.end {
14956 runs.push((range.clone(), style));
14957 } else {
14958 runs.push((range.start..label.filter_range.end, style));
14959 runs.push((label.filter_range.end..range.end, muted_style));
14960 }
14961 prev_end = cmp::max(prev_end, range.end);
14962
14963 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14964 runs.push((prev_end..label.text.len(), fade_out));
14965 }
14966
14967 runs
14968 })
14969}
14970
14971pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14972 let mut prev_index = 0;
14973 let mut prev_codepoint: Option<char> = None;
14974 text.char_indices()
14975 .chain([(text.len(), '\0')])
14976 .filter_map(move |(index, codepoint)| {
14977 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14978 let is_boundary = index == text.len()
14979 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14980 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14981 if is_boundary {
14982 let chunk = &text[prev_index..index];
14983 prev_index = index;
14984 Some(chunk)
14985 } else {
14986 None
14987 }
14988 })
14989}
14990
14991pub trait RangeToAnchorExt: Sized {
14992 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14993
14994 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14995 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14996 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14997 }
14998}
14999
15000impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15001 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15002 let start_offset = self.start.to_offset(snapshot);
15003 let end_offset = self.end.to_offset(snapshot);
15004 if start_offset == end_offset {
15005 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15006 } else {
15007 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15008 }
15009 }
15010}
15011
15012pub trait RowExt {
15013 fn as_f32(&self) -> f32;
15014
15015 fn next_row(&self) -> Self;
15016
15017 fn previous_row(&self) -> Self;
15018
15019 fn minus(&self, other: Self) -> u32;
15020}
15021
15022impl RowExt for DisplayRow {
15023 fn as_f32(&self) -> f32 {
15024 self.0 as f32
15025 }
15026
15027 fn next_row(&self) -> Self {
15028 Self(self.0 + 1)
15029 }
15030
15031 fn previous_row(&self) -> Self {
15032 Self(self.0.saturating_sub(1))
15033 }
15034
15035 fn minus(&self, other: Self) -> u32 {
15036 self.0 - other.0
15037 }
15038}
15039
15040impl RowExt for MultiBufferRow {
15041 fn as_f32(&self) -> f32 {
15042 self.0 as f32
15043 }
15044
15045 fn next_row(&self) -> Self {
15046 Self(self.0 + 1)
15047 }
15048
15049 fn previous_row(&self) -> Self {
15050 Self(self.0.saturating_sub(1))
15051 }
15052
15053 fn minus(&self, other: Self) -> u32 {
15054 self.0 - other.0
15055 }
15056}
15057
15058trait RowRangeExt {
15059 type Row;
15060
15061 fn len(&self) -> usize;
15062
15063 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15064}
15065
15066impl RowRangeExt for Range<MultiBufferRow> {
15067 type Row = MultiBufferRow;
15068
15069 fn len(&self) -> usize {
15070 (self.end.0 - self.start.0) as usize
15071 }
15072
15073 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15074 (self.start.0..self.end.0).map(MultiBufferRow)
15075 }
15076}
15077
15078impl RowRangeExt for Range<DisplayRow> {
15079 type Row = DisplayRow;
15080
15081 fn len(&self) -> usize {
15082 (self.end.0 - self.start.0) as usize
15083 }
15084
15085 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15086 (self.start.0..self.end.0).map(DisplayRow)
15087 }
15088}
15089
15090fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15091 if hunk.diff_base_byte_range.is_empty() {
15092 DiffHunkStatus::Added
15093 } else if hunk.row_range.is_empty() {
15094 DiffHunkStatus::Removed
15095 } else {
15096 DiffHunkStatus::Modified
15097 }
15098}
15099
15100/// If select range has more than one line, we
15101/// just point the cursor to range.start.
15102fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15103 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15104 range
15105 } else {
15106 range.start..range.start
15107 }
15108}
15109
15110pub struct KillRing(ClipboardItem);
15111impl Global for KillRing {}
15112
15113const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);