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 debounced_delay;
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;
31mod inline_completion_provider;
32pub mod items;
33mod linked_editing_ranges;
34mod lsp_ext;
35mod mouse_context_menu;
36pub mod movement;
37mod persistence;
38mod proposed_changes_editor;
39mod rust_analyzer_ext;
40pub mod scroll;
41mod selections_collection;
42pub mod tasks;
43
44#[cfg(test)]
45mod editor_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51pub(crate) use actions::*;
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString,
79 Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
80 TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
81 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion_provider::*;
90pub use items::MAX_TAB_TITLE_LEN;
91use itertools::Itertools;
92use language::{
93 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
94 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
95 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
96 Point, Selection, SelectionGoal, TransactionId,
97};
98use language::{
99 point_to_lsp, BufferRow, CharClassifier, LanguageServerName, Runnable, RunnableRange,
100};
101use linked_editing_ranges::refresh_linked_ranges;
102pub use proposed_changes_editor::{
103 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
104};
105use similar::{ChangeTag, TextDiff};
106use task::{ResolvedTask, TaskTemplate, TaskVariables};
107
108use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
109pub use lsp::CompletionContext;
110use lsp::{
111 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
112 LanguageServerId,
113};
114use mouse_context_menu::MouseContextMenu;
115use movement::TextLayoutDetails;
116pub use multi_buffer::{
117 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
118 ToPoint,
119};
120use multi_buffer::{
121 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
122};
123use ordered_float::OrderedFloat;
124use parking_lot::{Mutex, RwLock};
125use project::{
126 lsp_store::{FormatTarget, FormatTrigger},
127 project_settings::{GitGutterSetting, ProjectSettings},
128 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
129 LocationLink, Project, ProjectPath, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
135use serde::{Deserialize, Serialize};
136use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
137use smallvec::SmallVec;
138use snippet::Snippet;
139use std::{
140 any::TypeId,
141 borrow::Cow,
142 cell::RefCell,
143 cmp::{self, Ordering, Reverse},
144 mem,
145 num::NonZeroU32,
146 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
147 path::{Path, PathBuf},
148 rc::Rc,
149 sync::Arc,
150 time::{Duration, Instant},
151};
152pub use sum_tree::Bias;
153use sum_tree::TreeMap;
154use text::{BufferId, OffsetUtf16, Rope};
155use theme::{
156 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
157 ThemeColors, ThemeSettings,
158};
159use ui::{
160 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
161 ListItem, Popover, PopoverMenuHandle, Tooltip,
162};
163use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
164use workspace::item::{ItemHandle, PreviewTabsSettings};
165use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
166use workspace::{
167 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
168};
169use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
170
171use crate::hover_links::find_url;
172use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
173
174pub const FILE_HEADER_HEIGHT: u32 = 2;
175pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
176pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
177pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
178const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
179const MAX_LINE_LEN: usize = 1024;
180const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
181const MAX_SELECTION_HISTORY_LEN: usize = 1024;
182pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
183#[doc(hidden)]
184pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
185#[doc(hidden)]
186pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
187
188pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
189pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
190
191pub fn render_parsed_markdown(
192 element_id: impl Into<ElementId>,
193 parsed: &language::ParsedMarkdown,
194 editor_style: &EditorStyle,
195 workspace: Option<WeakView<Workspace>>,
196 cx: &mut WindowContext,
197) -> InteractiveText {
198 let code_span_background_color = cx
199 .theme()
200 .colors()
201 .editor_document_highlight_read_background;
202
203 let highlights = gpui::combine_highlights(
204 parsed.highlights.iter().filter_map(|(range, highlight)| {
205 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
206 Some((range.clone(), highlight))
207 }),
208 parsed
209 .regions
210 .iter()
211 .zip(&parsed.region_ranges)
212 .filter_map(|(region, range)| {
213 if region.code {
214 Some((
215 range.clone(),
216 HighlightStyle {
217 background_color: Some(code_span_background_color),
218 ..Default::default()
219 },
220 ))
221 } else {
222 None
223 }
224 }),
225 );
226
227 let mut links = Vec::new();
228 let mut link_ranges = Vec::new();
229 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
230 if let Some(link) = region.link.clone() {
231 links.push(link);
232 link_ranges.push(range.clone());
233 }
234 }
235
236 InteractiveText::new(
237 element_id,
238 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
239 )
240 .on_click(link_ranges, move |clicked_range_ix, cx| {
241 match &links[clicked_range_ix] {
242 markdown::Link::Web { url } => cx.open_url(url),
243 markdown::Link::Path { path } => {
244 if let Some(workspace) = &workspace {
245 _ = workspace.update(cx, |workspace, cx| {
246 workspace.open_abs_path(path.clone(), false, cx).detach();
247 });
248 }
249 }
250 }
251 })
252}
253
254#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
255pub(crate) enum InlayId {
256 Suggestion(usize),
257 Hint(usize),
258}
259
260impl InlayId {
261 fn id(&self) -> usize {
262 match self {
263 Self::Suggestion(id) => *id,
264 Self::Hint(id) => *id,
265 }
266 }
267}
268
269enum DiffRowHighlight {}
270enum DocumentHighlightRead {}
271enum DocumentHighlightWrite {}
272enum InputComposition {}
273
274#[derive(Copy, Clone, PartialEq, Eq)]
275pub enum Direction {
276 Prev,
277 Next,
278}
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}
335
336pub struct SearchWithinRange;
337
338trait InvalidationRegion {
339 fn ranges(&self) -> &[Range<Anchor>];
340}
341
342#[derive(Clone, Debug, PartialEq)]
343pub enum SelectPhase {
344 Begin {
345 position: DisplayPoint,
346 add: bool,
347 click_count: usize,
348 },
349 BeginColumnar {
350 position: DisplayPoint,
351 reset: bool,
352 goal_column: u32,
353 },
354 Extend {
355 position: DisplayPoint,
356 click_count: usize,
357 },
358 Update {
359 position: DisplayPoint,
360 goal_column: u32,
361 scroll_delta: gpui::Point<f32>,
362 },
363 End,
364}
365
366#[derive(Clone, Debug)]
367pub enum SelectMode {
368 Character,
369 Word(Range<Anchor>),
370 Line(Range<Anchor>),
371 All,
372}
373
374#[derive(Copy, Clone, PartialEq, Eq, Debug)]
375pub enum EditorMode {
376 SingleLine { auto_width: bool },
377 AutoHeight { max_lines: usize },
378 Full,
379}
380
381#[derive(Copy, Clone, Debug)]
382pub enum SoftWrap {
383 /// Prefer not to wrap at all.
384 ///
385 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
386 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
387 GitDiff,
388 /// Prefer a single line generally, unless an overly long line is encountered.
389 None,
390 /// Soft wrap lines that exceed the editor width.
391 EditorWidth,
392 /// Soft wrap lines at the preferred line length.
393 Column(u32),
394 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
395 Bounded(u32),
396}
397
398#[derive(Clone)]
399pub struct EditorStyle {
400 pub background: Hsla,
401 pub local_player: PlayerColor,
402 pub text: TextStyle,
403 pub scrollbar_width: Pixels,
404 pub syntax: Arc<SyntaxTheme>,
405 pub status: StatusColors,
406 pub inlay_hints_style: HighlightStyle,
407 pub suggestions_style: HighlightStyle,
408 pub unnecessary_code_fade: f32,
409}
410
411impl Default for EditorStyle {
412 fn default() -> Self {
413 Self {
414 background: Hsla::default(),
415 local_player: PlayerColor::default(),
416 text: TextStyle::default(),
417 scrollbar_width: Pixels::default(),
418 syntax: Default::default(),
419 // HACK: Status colors don't have a real default.
420 // We should look into removing the status colors from the editor
421 // style and retrieve them directly from the theme.
422 status: StatusColors::dark(),
423 inlay_hints_style: HighlightStyle::default(),
424 suggestions_style: HighlightStyle::default(),
425 unnecessary_code_fade: Default::default(),
426 }
427 }
428}
429
430pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
431 let show_background = language_settings::language_settings(None, None, cx)
432 .inlay_hints
433 .show_background;
434
435 HighlightStyle {
436 color: Some(cx.theme().status().hint),
437 background_color: show_background.then(|| cx.theme().status().hint_background),
438 ..HighlightStyle::default()
439 }
440}
441
442type CompletionId = usize;
443
444#[derive(Clone, Debug)]
445struct CompletionState {
446 // render_inlay_ids represents the inlay hints that are inserted
447 // for rendering the inline completions. They may be discontinuous
448 // in the event that the completion provider returns some intersection
449 // with the existing content.
450 render_inlay_ids: Vec<InlayId>,
451 // text is the resulting rope that is inserted when the user accepts a completion.
452 text: Rope,
453 // position is the position of the cursor when the completion was triggered.
454 position: multi_buffer::Anchor,
455 // delete_range is the range of text that this completion state covers.
456 // if the completion is accepted, this range should be deleted.
457 delete_range: Option<Range<multi_buffer::Anchor>>,
458}
459
460#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
461struct EditorActionId(usize);
462
463impl EditorActionId {
464 pub fn post_inc(&mut self) -> Self {
465 let answer = self.0;
466
467 *self = Self(answer + 1);
468
469 Self(answer)
470 }
471}
472
473// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
474// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
475
476type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
477type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
478
479#[derive(Default)]
480struct ScrollbarMarkerState {
481 scrollbar_size: Size<Pixels>,
482 dirty: bool,
483 markers: Arc<[PaintQuad]>,
484 pending_refresh: Option<Task<Result<()>>>,
485}
486
487impl ScrollbarMarkerState {
488 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
489 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
490 }
491}
492
493#[derive(Clone, Debug)]
494struct RunnableTasks {
495 templates: Vec<(TaskSourceKind, TaskTemplate)>,
496 offset: MultiBufferOffset,
497 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
498 column: u32,
499 // Values of all named captures, including those starting with '_'
500 extra_variables: HashMap<String, String>,
501 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
502 context_range: Range<BufferOffset>,
503}
504
505impl RunnableTasks {
506 fn resolve<'a>(
507 &'a self,
508 cx: &'a task::TaskContext,
509 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
510 self.templates.iter().filter_map(|(kind, template)| {
511 template
512 .resolve_task(&kind.to_id_base(), cx)
513 .map(|task| (kind.clone(), task))
514 })
515 }
516}
517
518#[derive(Clone)]
519struct ResolvedTasks {
520 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
521 position: Anchor,
522}
523#[derive(Copy, Clone, Debug)]
524struct MultiBufferOffset(usize);
525#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
526struct BufferOffset(usize);
527
528// Addons allow storing per-editor state in other crates (e.g. Vim)
529pub trait Addon: 'static {
530 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
531
532 fn to_any(&self) -> &dyn std::any::Any;
533}
534
535/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
536///
537/// See the [module level documentation](self) for more information.
538pub struct Editor {
539 focus_handle: FocusHandle,
540 last_focused_descendant: Option<WeakFocusHandle>,
541 /// The text buffer being edited
542 buffer: Model<MultiBuffer>,
543 /// Map of how text in the buffer should be displayed.
544 /// Handles soft wraps, folds, fake inlay text insertions, etc.
545 pub display_map: Model<DisplayMap>,
546 pub selections: SelectionsCollection,
547 pub scroll_manager: ScrollManager,
548 /// When inline assist editors are linked, they all render cursors because
549 /// typing enters text into each of them, even the ones that aren't focused.
550 pub(crate) show_cursor_when_unfocused: bool,
551 columnar_selection_tail: Option<Anchor>,
552 add_selections_state: Option<AddSelectionsState>,
553 select_next_state: Option<SelectNextState>,
554 select_prev_state: Option<SelectNextState>,
555 selection_history: SelectionHistory,
556 autoclose_regions: Vec<AutocloseRegion>,
557 snippet_stack: InvalidationStack<SnippetState>,
558 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
559 ime_transaction: Option<TransactionId>,
560 active_diagnostics: Option<ActiveDiagnosticGroup>,
561 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
562
563 project: Option<Model<Project>>,
564 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
565 completion_provider: Option<Box<dyn CompletionProvider>>,
566 collaboration_hub: Option<Box<dyn CollaborationHub>>,
567 blink_manager: Model<BlinkManager>,
568 show_cursor_names: bool,
569 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
570 pub show_local_selections: bool,
571 mode: EditorMode,
572 show_breadcrumbs: bool,
573 show_gutter: bool,
574 show_line_numbers: Option<bool>,
575 use_relative_line_numbers: Option<bool>,
576 show_git_diff_gutter: Option<bool>,
577 show_code_actions: Option<bool>,
578 show_runnables: Option<bool>,
579 show_wrap_guides: Option<bool>,
580 show_indent_guides: Option<bool>,
581 placeholder_text: Option<Arc<str>>,
582 highlight_order: usize,
583 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
584 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
585 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
586 scrollbar_marker_state: ScrollbarMarkerState,
587 active_indent_guides_state: ActiveIndentGuidesState,
588 nav_history: Option<ItemNavHistory>,
589 context_menu: RwLock<Option<ContextMenu>>,
590 mouse_context_menu: Option<MouseContextMenu>,
591 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
592 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
593 signature_help_state: SignatureHelpState,
594 auto_signature_help: Option<bool>,
595 find_all_references_task_sources: Vec<Anchor>,
596 next_completion_id: CompletionId,
597 completion_documentation_pre_resolve_debounce: DebouncedDelay,
598 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
599 code_actions_task: Option<Task<Result<()>>>,
600 document_highlights_task: Option<Task<()>>,
601 linked_editing_range_task: Option<Task<Option<()>>>,
602 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
603 pending_rename: Option<RenameState>,
604 searchable: bool,
605 cursor_shape: CursorShape,
606 current_line_highlight: Option<CurrentLineHighlight>,
607 collapse_matches: bool,
608 autoindent_mode: Option<AutoindentMode>,
609 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
610 input_enabled: bool,
611 use_modal_editing: bool,
612 read_only: bool,
613 leader_peer_id: Option<PeerId>,
614 remote_id: Option<ViewId>,
615 hover_state: HoverState,
616 gutter_hovered: bool,
617 hovered_link_state: Option<HoveredLinkState>,
618 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
619 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
620 active_inline_completion: Option<CompletionState>,
621 // enable_inline_completions is a switch that Vim can use to disable
622 // inline completions based on its mode.
623 enable_inline_completions: bool,
624 show_inline_completions_override: Option<bool>,
625 inlay_hint_cache: InlayHintCache,
626 expanded_hunks: ExpandedHunks,
627 next_inlay_id: usize,
628 _subscriptions: Vec<Subscription>,
629 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
630 gutter_dimensions: GutterDimensions,
631 style: Option<EditorStyle>,
632 text_style_refinement: Option<TextStyleRefinement>,
633 next_editor_action_id: EditorActionId,
634 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
635 use_autoclose: bool,
636 use_auto_surround: bool,
637 auto_replace_emoji_shortcode: bool,
638 show_git_blame_gutter: bool,
639 show_git_blame_inline: bool,
640 show_git_blame_inline_delay_task: Option<Task<()>>,
641 git_blame_inline_enabled: bool,
642 serialize_dirty_buffers: bool,
643 show_selection_menu: Option<bool>,
644 blame: Option<Model<GitBlame>>,
645 blame_subscription: Option<Subscription>,
646 custom_context_menu: Option<
647 Box<
648 dyn 'static
649 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
650 >,
651 >,
652 last_bounds: Option<Bounds<Pixels>>,
653 expect_bounds_change: Option<Bounds<Pixels>>,
654 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
655 tasks_update_task: Option<Task<()>>,
656 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
657 breadcrumb_header: Option<String>,
658 focused_block: Option<FocusedBlock>,
659 next_scroll_position: NextScrollCursorCenterTopBottom,
660 addons: HashMap<TypeId, Box<dyn Addon>>,
661 _scroll_cursor_center_top_bottom_task: Task<()>,
662}
663
664#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
665enum NextScrollCursorCenterTopBottom {
666 #[default]
667 Center,
668 Top,
669 Bottom,
670}
671
672impl NextScrollCursorCenterTopBottom {
673 fn next(&self) -> Self {
674 match self {
675 Self::Center => Self::Top,
676 Self::Top => Self::Bottom,
677 Self::Bottom => Self::Center,
678 }
679 }
680}
681
682#[derive(Clone)]
683pub struct EditorSnapshot {
684 pub mode: EditorMode,
685 show_gutter: bool,
686 show_line_numbers: Option<bool>,
687 show_git_diff_gutter: Option<bool>,
688 show_code_actions: Option<bool>,
689 show_runnables: Option<bool>,
690 git_blame_gutter_max_author_length: Option<usize>,
691 pub display_snapshot: DisplaySnapshot,
692 pub placeholder_text: Option<Arc<str>>,
693 is_focused: bool,
694 scroll_anchor: ScrollAnchor,
695 ongoing_scroll: OngoingScroll,
696 current_line_highlight: CurrentLineHighlight,
697 gutter_hovered: bool,
698}
699
700const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
701
702#[derive(Default, Debug, Clone, Copy)]
703pub struct GutterDimensions {
704 pub left_padding: Pixels,
705 pub right_padding: Pixels,
706 pub width: Pixels,
707 pub margin: Pixels,
708 pub git_blame_entries_width: Option<Pixels>,
709}
710
711impl GutterDimensions {
712 /// The full width of the space taken up by the gutter.
713 pub fn full_width(&self) -> Pixels {
714 self.margin + self.width
715 }
716
717 /// The width of the space reserved for the fold indicators,
718 /// use alongside 'justify_end' and `gutter_width` to
719 /// right align content with the line numbers
720 pub fn fold_area_width(&self) -> Pixels {
721 self.margin + self.right_padding
722 }
723}
724
725#[derive(Debug)]
726pub struct RemoteSelection {
727 pub replica_id: ReplicaId,
728 pub selection: Selection<Anchor>,
729 pub cursor_shape: CursorShape,
730 pub peer_id: PeerId,
731 pub line_mode: bool,
732 pub participant_index: Option<ParticipantIndex>,
733 pub user_name: Option<SharedString>,
734}
735
736#[derive(Clone, Debug)]
737struct SelectionHistoryEntry {
738 selections: Arc<[Selection<Anchor>]>,
739 select_next_state: Option<SelectNextState>,
740 select_prev_state: Option<SelectNextState>,
741 add_selections_state: Option<AddSelectionsState>,
742}
743
744enum SelectionHistoryMode {
745 Normal,
746 Undoing,
747 Redoing,
748}
749
750#[derive(Clone, PartialEq, Eq, Hash)]
751struct HoveredCursor {
752 replica_id: u16,
753 selection_id: usize,
754}
755
756impl Default for SelectionHistoryMode {
757 fn default() -> Self {
758 Self::Normal
759 }
760}
761
762#[derive(Default)]
763struct SelectionHistory {
764 #[allow(clippy::type_complexity)]
765 selections_by_transaction:
766 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
767 mode: SelectionHistoryMode,
768 undo_stack: VecDeque<SelectionHistoryEntry>,
769 redo_stack: VecDeque<SelectionHistoryEntry>,
770}
771
772impl SelectionHistory {
773 fn insert_transaction(
774 &mut self,
775 transaction_id: TransactionId,
776 selections: Arc<[Selection<Anchor>]>,
777 ) {
778 self.selections_by_transaction
779 .insert(transaction_id, (selections, None));
780 }
781
782 #[allow(clippy::type_complexity)]
783 fn transaction(
784 &self,
785 transaction_id: TransactionId,
786 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
787 self.selections_by_transaction.get(&transaction_id)
788 }
789
790 #[allow(clippy::type_complexity)]
791 fn transaction_mut(
792 &mut self,
793 transaction_id: TransactionId,
794 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
795 self.selections_by_transaction.get_mut(&transaction_id)
796 }
797
798 fn push(&mut self, entry: SelectionHistoryEntry) {
799 if !entry.selections.is_empty() {
800 match self.mode {
801 SelectionHistoryMode::Normal => {
802 self.push_undo(entry);
803 self.redo_stack.clear();
804 }
805 SelectionHistoryMode::Undoing => self.push_redo(entry),
806 SelectionHistoryMode::Redoing => self.push_undo(entry),
807 }
808 }
809 }
810
811 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
812 if self
813 .undo_stack
814 .back()
815 .map_or(true, |e| e.selections != entry.selections)
816 {
817 self.undo_stack.push_back(entry);
818 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
819 self.undo_stack.pop_front();
820 }
821 }
822 }
823
824 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
825 if self
826 .redo_stack
827 .back()
828 .map_or(true, |e| e.selections != entry.selections)
829 {
830 self.redo_stack.push_back(entry);
831 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
832 self.redo_stack.pop_front();
833 }
834 }
835 }
836}
837
838struct RowHighlight {
839 index: usize,
840 range: Range<Anchor>,
841 color: Hsla,
842 should_autoscroll: bool,
843}
844
845#[derive(Clone, Debug)]
846struct AddSelectionsState {
847 above: bool,
848 stack: Vec<usize>,
849}
850
851#[derive(Clone)]
852struct SelectNextState {
853 query: AhoCorasick,
854 wordwise: bool,
855 done: bool,
856}
857
858impl std::fmt::Debug for SelectNextState {
859 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
860 f.debug_struct(std::any::type_name::<Self>())
861 .field("wordwise", &self.wordwise)
862 .field("done", &self.done)
863 .finish()
864 }
865}
866
867#[derive(Debug)]
868struct AutocloseRegion {
869 selection_id: usize,
870 range: Range<Anchor>,
871 pair: BracketPair,
872}
873
874#[derive(Debug)]
875struct SnippetState {
876 ranges: Vec<Vec<Range<Anchor>>>,
877 active_index: usize,
878}
879
880#[doc(hidden)]
881pub struct RenameState {
882 pub range: Range<Anchor>,
883 pub old_name: Arc<str>,
884 pub editor: View<Editor>,
885 block_id: CustomBlockId,
886}
887
888struct InvalidationStack<T>(Vec<T>);
889
890struct RegisteredInlineCompletionProvider {
891 provider: Arc<dyn InlineCompletionProviderHandle>,
892 _subscription: Subscription,
893}
894
895enum ContextMenu {
896 Completions(CompletionsMenu),
897 CodeActions(CodeActionsMenu),
898}
899
900impl ContextMenu {
901 fn select_first(
902 &mut self,
903 provider: Option<&dyn CompletionProvider>,
904 cx: &mut ViewContext<Editor>,
905 ) -> bool {
906 if self.visible() {
907 match self {
908 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
909 ContextMenu::CodeActions(menu) => menu.select_first(cx),
910 }
911 true
912 } else {
913 false
914 }
915 }
916
917 fn select_prev(
918 &mut self,
919 provider: Option<&dyn CompletionProvider>,
920 cx: &mut ViewContext<Editor>,
921 ) -> bool {
922 if self.visible() {
923 match self {
924 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
925 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
926 }
927 true
928 } else {
929 false
930 }
931 }
932
933 fn select_next(
934 &mut self,
935 provider: Option<&dyn CompletionProvider>,
936 cx: &mut ViewContext<Editor>,
937 ) -> bool {
938 if self.visible() {
939 match self {
940 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
941 ContextMenu::CodeActions(menu) => menu.select_next(cx),
942 }
943 true
944 } else {
945 false
946 }
947 }
948
949 fn select_last(
950 &mut self,
951 provider: Option<&dyn CompletionProvider>,
952 cx: &mut ViewContext<Editor>,
953 ) -> bool {
954 if self.visible() {
955 match self {
956 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
957 ContextMenu::CodeActions(menu) => menu.select_last(cx),
958 }
959 true
960 } else {
961 false
962 }
963 }
964
965 fn visible(&self) -> bool {
966 match self {
967 ContextMenu::Completions(menu) => menu.visible(),
968 ContextMenu::CodeActions(menu) => menu.visible(),
969 }
970 }
971
972 fn render(
973 &self,
974 cursor_position: DisplayPoint,
975 style: &EditorStyle,
976 max_height: Pixels,
977 workspace: Option<WeakView<Workspace>>,
978 cx: &mut ViewContext<Editor>,
979 ) -> (ContextMenuOrigin, AnyElement) {
980 match self {
981 ContextMenu::Completions(menu) => (
982 ContextMenuOrigin::EditorPoint(cursor_position),
983 menu.render(style, max_height, workspace, cx),
984 ),
985 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
986 }
987 }
988}
989
990enum ContextMenuOrigin {
991 EditorPoint(DisplayPoint),
992 GutterIndicator(DisplayRow),
993}
994
995#[derive(Clone)]
996struct CompletionsMenu {
997 id: CompletionId,
998 sort_completions: bool,
999 initial_position: Anchor,
1000 buffer: Model<Buffer>,
1001 completions: Arc<RwLock<Box<[Completion]>>>,
1002 match_candidates: Arc<[StringMatchCandidate]>,
1003 matches: Arc<[StringMatch]>,
1004 selected_item: usize,
1005 scroll_handle: UniformListScrollHandle,
1006 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
1007}
1008
1009impl CompletionsMenu {
1010 fn select_first(
1011 &mut self,
1012 provider: Option<&dyn CompletionProvider>,
1013 cx: &mut ViewContext<Editor>,
1014 ) {
1015 self.selected_item = 0;
1016 self.scroll_handle.scroll_to_item(self.selected_item);
1017 self.attempt_resolve_selected_completion_documentation(provider, cx);
1018 cx.notify();
1019 }
1020
1021 fn select_prev(
1022 &mut self,
1023 provider: Option<&dyn CompletionProvider>,
1024 cx: &mut ViewContext<Editor>,
1025 ) {
1026 if self.selected_item > 0 {
1027 self.selected_item -= 1;
1028 } else {
1029 self.selected_item = self.matches.len() - 1;
1030 }
1031 self.scroll_handle.scroll_to_item(self.selected_item);
1032 self.attempt_resolve_selected_completion_documentation(provider, cx);
1033 cx.notify();
1034 }
1035
1036 fn select_next(
1037 &mut self,
1038 provider: Option<&dyn CompletionProvider>,
1039 cx: &mut ViewContext<Editor>,
1040 ) {
1041 if self.selected_item + 1 < self.matches.len() {
1042 self.selected_item += 1;
1043 } else {
1044 self.selected_item = 0;
1045 }
1046 self.scroll_handle.scroll_to_item(self.selected_item);
1047 self.attempt_resolve_selected_completion_documentation(provider, cx);
1048 cx.notify();
1049 }
1050
1051 fn select_last(
1052 &mut self,
1053 provider: Option<&dyn CompletionProvider>,
1054 cx: &mut ViewContext<Editor>,
1055 ) {
1056 self.selected_item = self.matches.len() - 1;
1057 self.scroll_handle.scroll_to_item(self.selected_item);
1058 self.attempt_resolve_selected_completion_documentation(provider, cx);
1059 cx.notify();
1060 }
1061
1062 fn pre_resolve_completion_documentation(
1063 buffer: Model<Buffer>,
1064 completions: Arc<RwLock<Box<[Completion]>>>,
1065 matches: Arc<[StringMatch]>,
1066 editor: &Editor,
1067 cx: &mut ViewContext<Editor>,
1068 ) -> Task<()> {
1069 let settings = EditorSettings::get_global(cx);
1070 if !settings.show_completion_documentation {
1071 return Task::ready(());
1072 }
1073
1074 let Some(provider) = editor.completion_provider.as_ref() else {
1075 return Task::ready(());
1076 };
1077
1078 let resolve_task = provider.resolve_completions(
1079 buffer,
1080 matches.iter().map(|m| m.candidate_id).collect(),
1081 completions.clone(),
1082 cx,
1083 );
1084
1085 cx.spawn(move |this, mut cx| async move {
1086 if let Some(true) = resolve_task.await.log_err() {
1087 this.update(&mut cx, |_, cx| cx.notify()).ok();
1088 }
1089 })
1090 }
1091
1092 fn attempt_resolve_selected_completion_documentation(
1093 &mut self,
1094 provider: Option<&dyn CompletionProvider>,
1095 cx: &mut ViewContext<Editor>,
1096 ) {
1097 let settings = EditorSettings::get_global(cx);
1098 if !settings.show_completion_documentation {
1099 return;
1100 }
1101
1102 let completion_index = self.matches[self.selected_item].candidate_id;
1103 let Some(provider) = provider else {
1104 return;
1105 };
1106
1107 let resolve_task = provider.resolve_completions(
1108 self.buffer.clone(),
1109 vec![completion_index],
1110 self.completions.clone(),
1111 cx,
1112 );
1113
1114 let delay_ms =
1115 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1116 let delay = Duration::from_millis(delay_ms);
1117
1118 self.selected_completion_documentation_resolve_debounce
1119 .lock()
1120 .fire_new(delay, cx, |_, cx| {
1121 cx.spawn(move |this, mut cx| async move {
1122 if let Some(true) = resolve_task.await.log_err() {
1123 this.update(&mut cx, |_, cx| cx.notify()).ok();
1124 }
1125 })
1126 });
1127 }
1128
1129 fn visible(&self) -> bool {
1130 !self.matches.is_empty()
1131 }
1132
1133 fn render(
1134 &self,
1135 style: &EditorStyle,
1136 max_height: Pixels,
1137 workspace: Option<WeakView<Workspace>>,
1138 cx: &mut ViewContext<Editor>,
1139 ) -> AnyElement {
1140 let settings = EditorSettings::get_global(cx);
1141 let show_completion_documentation = settings.show_completion_documentation;
1142
1143 let widest_completion_ix = self
1144 .matches
1145 .iter()
1146 .enumerate()
1147 .max_by_key(|(_, mat)| {
1148 let completions = self.completions.read();
1149 let completion = &completions[mat.candidate_id];
1150 let documentation = &completion.documentation;
1151
1152 let mut len = completion.label.text.chars().count();
1153 if let Some(Documentation::SingleLine(text)) = documentation {
1154 if show_completion_documentation {
1155 len += text.chars().count();
1156 }
1157 }
1158
1159 len
1160 })
1161 .map(|(ix, _)| ix);
1162
1163 let completions = self.completions.clone();
1164 let matches = self.matches.clone();
1165 let selected_item = self.selected_item;
1166 let style = style.clone();
1167
1168 let multiline_docs = if show_completion_documentation {
1169 let mat = &self.matches[selected_item];
1170 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1171 Some(Documentation::MultiLinePlainText(text)) => {
1172 Some(div().child(SharedString::from(text.clone())))
1173 }
1174 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1175 Some(div().child(render_parsed_markdown(
1176 "completions_markdown",
1177 parsed,
1178 &style,
1179 workspace,
1180 cx,
1181 )))
1182 }
1183 _ => None,
1184 };
1185 multiline_docs.map(|div| {
1186 div.id("multiline_docs")
1187 .max_h(max_height)
1188 .flex_1()
1189 .px_1p5()
1190 .py_1()
1191 .min_w(px(260.))
1192 .max_w(px(640.))
1193 .w(px(500.))
1194 .overflow_y_scroll()
1195 .occlude()
1196 })
1197 } else {
1198 None
1199 };
1200
1201 let list = uniform_list(
1202 cx.view().clone(),
1203 "completions",
1204 matches.len(),
1205 move |_editor, range, cx| {
1206 let start_ix = range.start;
1207 let completions_guard = completions.read();
1208
1209 matches[range]
1210 .iter()
1211 .enumerate()
1212 .map(|(ix, mat)| {
1213 let item_ix = start_ix + ix;
1214 let candidate_id = mat.candidate_id;
1215 let completion = &completions_guard[candidate_id];
1216
1217 let documentation = if show_completion_documentation {
1218 &completion.documentation
1219 } else {
1220 &None
1221 };
1222
1223 let highlights = gpui::combine_highlights(
1224 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1225 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1226 |(range, mut highlight)| {
1227 // Ignore font weight for syntax highlighting, as we'll use it
1228 // for fuzzy matches.
1229 highlight.font_weight = None;
1230
1231 if completion.lsp_completion.deprecated.unwrap_or(false) {
1232 highlight.strikethrough = Some(StrikethroughStyle {
1233 thickness: 1.0.into(),
1234 ..Default::default()
1235 });
1236 highlight.color = Some(cx.theme().colors().text_muted);
1237 }
1238
1239 (range, highlight)
1240 },
1241 ),
1242 );
1243 let completion_label = StyledText::new(completion.label.text.clone())
1244 .with_highlights(&style.text, highlights);
1245 let documentation_label =
1246 if let Some(Documentation::SingleLine(text)) = documentation {
1247 if text.trim().is_empty() {
1248 None
1249 } else {
1250 Some(
1251 Label::new(text.clone())
1252 .ml_4()
1253 .size(LabelSize::Small)
1254 .color(Color::Muted),
1255 )
1256 }
1257 } else {
1258 None
1259 };
1260
1261 let color_swatch = completion
1262 .color()
1263 .map(|color| div().size_4().bg(color).rounded_sm());
1264
1265 div().min_w(px(220.)).max_w(px(540.)).child(
1266 ListItem::new(mat.candidate_id)
1267 .inset(true)
1268 .selected(item_ix == selected_item)
1269 .on_click(cx.listener(move |editor, _event, cx| {
1270 cx.stop_propagation();
1271 if let Some(task) = editor.confirm_completion(
1272 &ConfirmCompletion {
1273 item_ix: Some(item_ix),
1274 },
1275 cx,
1276 ) {
1277 task.detach_and_log_err(cx)
1278 }
1279 }))
1280 .start_slot::<Div>(color_swatch)
1281 .child(h_flex().overflow_hidden().child(completion_label))
1282 .end_slot::<Label>(documentation_label),
1283 )
1284 })
1285 .collect()
1286 },
1287 )
1288 .occlude()
1289 .max_h(max_height)
1290 .track_scroll(self.scroll_handle.clone())
1291 .with_width_from_item(widest_completion_ix)
1292 .with_sizing_behavior(ListSizingBehavior::Infer);
1293
1294 Popover::new()
1295 .child(list)
1296 .when_some(multiline_docs, |popover, multiline_docs| {
1297 popover.aside(multiline_docs)
1298 })
1299 .into_any_element()
1300 }
1301
1302 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1303 let mut matches = if let Some(query) = query {
1304 fuzzy::match_strings(
1305 &self.match_candidates,
1306 query,
1307 query.chars().any(|c| c.is_uppercase()),
1308 100,
1309 &Default::default(),
1310 executor,
1311 )
1312 .await
1313 } else {
1314 self.match_candidates
1315 .iter()
1316 .enumerate()
1317 .map(|(candidate_id, candidate)| StringMatch {
1318 candidate_id,
1319 score: Default::default(),
1320 positions: Default::default(),
1321 string: candidate.string.clone(),
1322 })
1323 .collect()
1324 };
1325
1326 // Remove all candidates where the query's start does not match the start of any word in the candidate
1327 if let Some(query) = query {
1328 if let Some(query_start) = query.chars().next() {
1329 matches.retain(|string_match| {
1330 split_words(&string_match.string).any(|word| {
1331 // Check that the first codepoint of the word as lowercase matches the first
1332 // codepoint of the query as lowercase
1333 word.chars()
1334 .flat_map(|codepoint| codepoint.to_lowercase())
1335 .zip(query_start.to_lowercase())
1336 .all(|(word_cp, query_cp)| word_cp == query_cp)
1337 })
1338 });
1339 }
1340 }
1341
1342 let completions = self.completions.read();
1343 if self.sort_completions {
1344 matches.sort_unstable_by_key(|mat| {
1345 // We do want to strike a balance here between what the language server tells us
1346 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1347 // `Creat` and there is a local variable called `CreateComponent`).
1348 // So what we do is: we bucket all matches into two buckets
1349 // - Strong matches
1350 // - Weak matches
1351 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1352 // and the Weak matches are the rest.
1353 //
1354 // For the strong matches, we sort by the language-servers score first and for the weak
1355 // matches, we prefer our fuzzy finder first.
1356 //
1357 // The thinking behind that: it's useless to take the sort_text the language-server gives
1358 // us into account when it's obviously a bad match.
1359
1360 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1361 enum MatchScore<'a> {
1362 Strong {
1363 sort_text: Option<&'a str>,
1364 score: Reverse<OrderedFloat<f64>>,
1365 sort_key: (usize, &'a str),
1366 },
1367 Weak {
1368 score: Reverse<OrderedFloat<f64>>,
1369 sort_text: Option<&'a str>,
1370 sort_key: (usize, &'a str),
1371 },
1372 }
1373
1374 let completion = &completions[mat.candidate_id];
1375 let sort_key = completion.sort_key();
1376 let sort_text = completion.lsp_completion.sort_text.as_deref();
1377 let score = Reverse(OrderedFloat(mat.score));
1378
1379 if mat.score >= 0.2 {
1380 MatchScore::Strong {
1381 sort_text,
1382 score,
1383 sort_key,
1384 }
1385 } else {
1386 MatchScore::Weak {
1387 score,
1388 sort_text,
1389 sort_key,
1390 }
1391 }
1392 });
1393 }
1394
1395 for mat in &mut matches {
1396 let completion = &completions[mat.candidate_id];
1397 mat.string.clone_from(&completion.label.text);
1398 for position in &mut mat.positions {
1399 *position += completion.label.filter_range.start;
1400 }
1401 }
1402 drop(completions);
1403
1404 self.matches = matches.into();
1405 self.selected_item = 0;
1406 }
1407}
1408
1409struct AvailableCodeAction {
1410 excerpt_id: ExcerptId,
1411 action: CodeAction,
1412 provider: Arc<dyn CodeActionProvider>,
1413}
1414
1415#[derive(Clone)]
1416struct CodeActionContents {
1417 tasks: Option<Arc<ResolvedTasks>>,
1418 actions: Option<Arc<[AvailableCodeAction]>>,
1419}
1420
1421impl CodeActionContents {
1422 fn len(&self) -> usize {
1423 match (&self.tasks, &self.actions) {
1424 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1425 (Some(tasks), None) => tasks.templates.len(),
1426 (None, Some(actions)) => actions.len(),
1427 (None, None) => 0,
1428 }
1429 }
1430
1431 fn is_empty(&self) -> bool {
1432 match (&self.tasks, &self.actions) {
1433 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1434 (Some(tasks), None) => tasks.templates.is_empty(),
1435 (None, Some(actions)) => actions.is_empty(),
1436 (None, None) => true,
1437 }
1438 }
1439
1440 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1441 self.tasks
1442 .iter()
1443 .flat_map(|tasks| {
1444 tasks
1445 .templates
1446 .iter()
1447 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1448 })
1449 .chain(self.actions.iter().flat_map(|actions| {
1450 actions.iter().map(|available| CodeActionsItem::CodeAction {
1451 excerpt_id: available.excerpt_id,
1452 action: available.action.clone(),
1453 provider: available.provider.clone(),
1454 })
1455 }))
1456 }
1457 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1458 match (&self.tasks, &self.actions) {
1459 (Some(tasks), Some(actions)) => {
1460 if index < tasks.templates.len() {
1461 tasks
1462 .templates
1463 .get(index)
1464 .cloned()
1465 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1466 } else {
1467 actions.get(index - tasks.templates.len()).map(|available| {
1468 CodeActionsItem::CodeAction {
1469 excerpt_id: available.excerpt_id,
1470 action: available.action.clone(),
1471 provider: available.provider.clone(),
1472 }
1473 })
1474 }
1475 }
1476 (Some(tasks), None) => tasks
1477 .templates
1478 .get(index)
1479 .cloned()
1480 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1481 (None, Some(actions)) => {
1482 actions
1483 .get(index)
1484 .map(|available| CodeActionsItem::CodeAction {
1485 excerpt_id: available.excerpt_id,
1486 action: available.action.clone(),
1487 provider: available.provider.clone(),
1488 })
1489 }
1490 (None, None) => None,
1491 }
1492 }
1493}
1494
1495#[allow(clippy::large_enum_variant)]
1496#[derive(Clone)]
1497enum CodeActionsItem {
1498 Task(TaskSourceKind, ResolvedTask),
1499 CodeAction {
1500 excerpt_id: ExcerptId,
1501 action: CodeAction,
1502 provider: Arc<dyn CodeActionProvider>,
1503 },
1504}
1505
1506impl CodeActionsItem {
1507 fn as_task(&self) -> Option<&ResolvedTask> {
1508 let Self::Task(_, task) = self else {
1509 return None;
1510 };
1511 Some(task)
1512 }
1513 fn as_code_action(&self) -> Option<&CodeAction> {
1514 let Self::CodeAction { action, .. } = self else {
1515 return None;
1516 };
1517 Some(action)
1518 }
1519 fn label(&self) -> String {
1520 match self {
1521 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1522 Self::Task(_, task) => task.resolved_label.clone(),
1523 }
1524 }
1525}
1526
1527struct CodeActionsMenu {
1528 actions: CodeActionContents,
1529 buffer: Model<Buffer>,
1530 selected_item: usize,
1531 scroll_handle: UniformListScrollHandle,
1532 deployed_from_indicator: Option<DisplayRow>,
1533}
1534
1535impl CodeActionsMenu {
1536 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1537 self.selected_item = 0;
1538 self.scroll_handle.scroll_to_item(self.selected_item);
1539 cx.notify()
1540 }
1541
1542 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1543 if self.selected_item > 0 {
1544 self.selected_item -= 1;
1545 } else {
1546 self.selected_item = self.actions.len() - 1;
1547 }
1548 self.scroll_handle.scroll_to_item(self.selected_item);
1549 cx.notify();
1550 }
1551
1552 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1553 if self.selected_item + 1 < self.actions.len() {
1554 self.selected_item += 1;
1555 } else {
1556 self.selected_item = 0;
1557 }
1558 self.scroll_handle.scroll_to_item(self.selected_item);
1559 cx.notify();
1560 }
1561
1562 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1563 self.selected_item = self.actions.len() - 1;
1564 self.scroll_handle.scroll_to_item(self.selected_item);
1565 cx.notify()
1566 }
1567
1568 fn visible(&self) -> bool {
1569 !self.actions.is_empty()
1570 }
1571
1572 fn render(
1573 &self,
1574 cursor_position: DisplayPoint,
1575 _style: &EditorStyle,
1576 max_height: Pixels,
1577 cx: &mut ViewContext<Editor>,
1578 ) -> (ContextMenuOrigin, AnyElement) {
1579 let actions = self.actions.clone();
1580 let selected_item = self.selected_item;
1581 let element = uniform_list(
1582 cx.view().clone(),
1583 "code_actions_menu",
1584 self.actions.len(),
1585 move |_this, range, cx| {
1586 actions
1587 .iter()
1588 .skip(range.start)
1589 .take(range.end - range.start)
1590 .enumerate()
1591 .map(|(ix, action)| {
1592 let item_ix = range.start + ix;
1593 let selected = selected_item == item_ix;
1594 let colors = cx.theme().colors();
1595 div()
1596 .px_1()
1597 .rounded_md()
1598 .text_color(colors.text)
1599 .when(selected, |style| {
1600 style
1601 .bg(colors.element_active)
1602 .text_color(colors.text_accent)
1603 })
1604 .hover(|style| {
1605 style
1606 .bg(colors.element_hover)
1607 .text_color(colors.text_accent)
1608 })
1609 .whitespace_nowrap()
1610 .when_some(action.as_code_action(), |this, action| {
1611 this.on_mouse_down(
1612 MouseButton::Left,
1613 cx.listener(move |editor, _, cx| {
1614 cx.stop_propagation();
1615 if let Some(task) = editor.confirm_code_action(
1616 &ConfirmCodeAction {
1617 item_ix: Some(item_ix),
1618 },
1619 cx,
1620 ) {
1621 task.detach_and_log_err(cx)
1622 }
1623 }),
1624 )
1625 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1626 .child(SharedString::from(action.lsp_action.title.clone()))
1627 })
1628 .when_some(action.as_task(), |this, task| {
1629 this.on_mouse_down(
1630 MouseButton::Left,
1631 cx.listener(move |editor, _, cx| {
1632 cx.stop_propagation();
1633 if let Some(task) = editor.confirm_code_action(
1634 &ConfirmCodeAction {
1635 item_ix: Some(item_ix),
1636 },
1637 cx,
1638 ) {
1639 task.detach_and_log_err(cx)
1640 }
1641 }),
1642 )
1643 .child(SharedString::from(task.resolved_label.clone()))
1644 })
1645 })
1646 .collect()
1647 },
1648 )
1649 .elevation_1(cx)
1650 .p_1()
1651 .max_h(max_height)
1652 .occlude()
1653 .track_scroll(self.scroll_handle.clone())
1654 .with_width_from_item(
1655 self.actions
1656 .iter()
1657 .enumerate()
1658 .max_by_key(|(_, action)| match action {
1659 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1660 CodeActionsItem::CodeAction { action, .. } => {
1661 action.lsp_action.title.chars().count()
1662 }
1663 })
1664 .map(|(ix, _)| ix),
1665 )
1666 .with_sizing_behavior(ListSizingBehavior::Infer)
1667 .into_any_element();
1668
1669 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1670 ContextMenuOrigin::GutterIndicator(row)
1671 } else {
1672 ContextMenuOrigin::EditorPoint(cursor_position)
1673 };
1674
1675 (cursor_position, element)
1676 }
1677}
1678
1679#[derive(Debug)]
1680struct ActiveDiagnosticGroup {
1681 primary_range: Range<Anchor>,
1682 primary_message: String,
1683 group_id: usize,
1684 blocks: HashMap<CustomBlockId, Diagnostic>,
1685 is_valid: bool,
1686}
1687
1688#[derive(Serialize, Deserialize, Clone, Debug)]
1689pub struct ClipboardSelection {
1690 pub len: usize,
1691 pub is_entire_line: bool,
1692 pub first_line_indent: u32,
1693}
1694
1695#[derive(Debug)]
1696pub(crate) struct NavigationData {
1697 cursor_anchor: Anchor,
1698 cursor_position: Point,
1699 scroll_anchor: ScrollAnchor,
1700 scroll_top_row: u32,
1701}
1702
1703#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1704pub enum GotoDefinitionKind {
1705 Symbol,
1706 Declaration,
1707 Type,
1708 Implementation,
1709}
1710
1711#[derive(Debug, Clone)]
1712enum InlayHintRefreshReason {
1713 Toggle(bool),
1714 SettingsChange(InlayHintSettings),
1715 NewLinesShown,
1716 BufferEdited(HashSet<Arc<Language>>),
1717 RefreshRequested,
1718 ExcerptsRemoved(Vec<ExcerptId>),
1719}
1720
1721impl InlayHintRefreshReason {
1722 fn description(&self) -> &'static str {
1723 match self {
1724 Self::Toggle(_) => "toggle",
1725 Self::SettingsChange(_) => "settings change",
1726 Self::NewLinesShown => "new lines shown",
1727 Self::BufferEdited(_) => "buffer edited",
1728 Self::RefreshRequested => "refresh requested",
1729 Self::ExcerptsRemoved(_) => "excerpts removed",
1730 }
1731 }
1732}
1733
1734pub(crate) struct FocusedBlock {
1735 id: BlockId,
1736 focus_handle: WeakFocusHandle,
1737}
1738
1739impl Editor {
1740 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1741 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1742 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1743 Self::new(
1744 EditorMode::SingleLine { auto_width: false },
1745 buffer,
1746 None,
1747 false,
1748 cx,
1749 )
1750 }
1751
1752 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1753 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1754 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1755 Self::new(EditorMode::Full, buffer, None, false, cx)
1756 }
1757
1758 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1759 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1760 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1761 Self::new(
1762 EditorMode::SingleLine { auto_width: true },
1763 buffer,
1764 None,
1765 false,
1766 cx,
1767 )
1768 }
1769
1770 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1771 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1772 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1773 Self::new(
1774 EditorMode::AutoHeight { max_lines },
1775 buffer,
1776 None,
1777 false,
1778 cx,
1779 )
1780 }
1781
1782 pub fn for_buffer(
1783 buffer: Model<Buffer>,
1784 project: Option<Model<Project>>,
1785 cx: &mut ViewContext<Self>,
1786 ) -> Self {
1787 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1788 Self::new(EditorMode::Full, buffer, project, false, cx)
1789 }
1790
1791 pub fn for_multibuffer(
1792 buffer: Model<MultiBuffer>,
1793 project: Option<Model<Project>>,
1794 show_excerpt_controls: bool,
1795 cx: &mut ViewContext<Self>,
1796 ) -> Self {
1797 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1798 }
1799
1800 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1801 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1802 let mut clone = Self::new(
1803 self.mode,
1804 self.buffer.clone(),
1805 self.project.clone(),
1806 show_excerpt_controls,
1807 cx,
1808 );
1809 self.display_map.update(cx, |display_map, cx| {
1810 let snapshot = display_map.snapshot(cx);
1811 clone.display_map.update(cx, |display_map, cx| {
1812 display_map.set_state(&snapshot, cx);
1813 });
1814 });
1815 clone.selections.clone_state(&self.selections);
1816 clone.scroll_manager.clone_state(&self.scroll_manager);
1817 clone.searchable = self.searchable;
1818 clone
1819 }
1820
1821 pub fn new(
1822 mode: EditorMode,
1823 buffer: Model<MultiBuffer>,
1824 project: Option<Model<Project>>,
1825 show_excerpt_controls: bool,
1826 cx: &mut ViewContext<Self>,
1827 ) -> Self {
1828 let style = cx.text_style();
1829 let font_size = style.font_size.to_pixels(cx.rem_size());
1830 let editor = cx.view().downgrade();
1831 let fold_placeholder = FoldPlaceholder {
1832 constrain_width: true,
1833 render: Arc::new(move |fold_id, fold_range, cx| {
1834 let editor = editor.clone();
1835 div()
1836 .id(fold_id)
1837 .bg(cx.theme().colors().ghost_element_background)
1838 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1839 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1840 .rounded_sm()
1841 .size_full()
1842 .cursor_pointer()
1843 .child("⋯")
1844 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1845 .on_click(move |_, cx| {
1846 editor
1847 .update(cx, |editor, cx| {
1848 editor.unfold_ranges(
1849 [fold_range.start..fold_range.end],
1850 true,
1851 false,
1852 cx,
1853 );
1854 cx.stop_propagation();
1855 })
1856 .ok();
1857 })
1858 .into_any()
1859 }),
1860 merge_adjacent: true,
1861 };
1862 let display_map = cx.new_model(|cx| {
1863 DisplayMap::new(
1864 buffer.clone(),
1865 style.font(),
1866 font_size,
1867 None,
1868 show_excerpt_controls,
1869 FILE_HEADER_HEIGHT,
1870 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1871 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1872 fold_placeholder,
1873 cx,
1874 )
1875 });
1876
1877 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1878
1879 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1880
1881 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1882 .then(|| language_settings::SoftWrap::None);
1883
1884 let mut project_subscriptions = Vec::new();
1885 if mode == EditorMode::Full {
1886 if let Some(project) = project.as_ref() {
1887 if buffer.read(cx).is_singleton() {
1888 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1889 cx.emit(EditorEvent::TitleChanged);
1890 }));
1891 }
1892 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1893 if let project::Event::RefreshInlayHints = event {
1894 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1895 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1896 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1897 let focus_handle = editor.focus_handle(cx);
1898 if focus_handle.is_focused(cx) {
1899 let snapshot = buffer.read(cx).snapshot();
1900 for (range, snippet) in snippet_edits {
1901 let editor_range =
1902 language::range_from_lsp(*range).to_offset(&snapshot);
1903 editor
1904 .insert_snippet(&[editor_range], snippet.clone(), cx)
1905 .ok();
1906 }
1907 }
1908 }
1909 }
1910 }));
1911 if let Some(task_inventory) = project
1912 .read(cx)
1913 .task_store()
1914 .read(cx)
1915 .task_inventory()
1916 .cloned()
1917 {
1918 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1919 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1920 }));
1921 }
1922 }
1923 }
1924
1925 let inlay_hint_settings = inlay_hint_settings(
1926 selections.newest_anchor().head(),
1927 &buffer.read(cx).snapshot(cx),
1928 cx,
1929 );
1930 let focus_handle = cx.focus_handle();
1931 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1932 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1933 .detach();
1934 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1935 .detach();
1936 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1937
1938 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1939 Some(false)
1940 } else {
1941 None
1942 };
1943
1944 let mut code_action_providers = Vec::new();
1945 if let Some(project) = project.clone() {
1946 code_action_providers.push(Arc::new(project) as Arc<_>);
1947 }
1948
1949 let mut this = Self {
1950 focus_handle,
1951 show_cursor_when_unfocused: false,
1952 last_focused_descendant: None,
1953 buffer: buffer.clone(),
1954 display_map: display_map.clone(),
1955 selections,
1956 scroll_manager: ScrollManager::new(cx),
1957 columnar_selection_tail: None,
1958 add_selections_state: None,
1959 select_next_state: None,
1960 select_prev_state: None,
1961 selection_history: Default::default(),
1962 autoclose_regions: Default::default(),
1963 snippet_stack: Default::default(),
1964 select_larger_syntax_node_stack: Vec::new(),
1965 ime_transaction: Default::default(),
1966 active_diagnostics: None,
1967 soft_wrap_mode_override,
1968 completion_provider: project.clone().map(|project| Box::new(project) as _),
1969 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1970 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1971 project,
1972 blink_manager: blink_manager.clone(),
1973 show_local_selections: true,
1974 mode,
1975 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1976 show_gutter: mode == EditorMode::Full,
1977 show_line_numbers: None,
1978 use_relative_line_numbers: None,
1979 show_git_diff_gutter: None,
1980 show_code_actions: None,
1981 show_runnables: None,
1982 show_wrap_guides: None,
1983 show_indent_guides,
1984 placeholder_text: None,
1985 highlight_order: 0,
1986 highlighted_rows: HashMap::default(),
1987 background_highlights: Default::default(),
1988 gutter_highlights: TreeMap::default(),
1989 scrollbar_marker_state: ScrollbarMarkerState::default(),
1990 active_indent_guides_state: ActiveIndentGuidesState::default(),
1991 nav_history: None,
1992 context_menu: RwLock::new(None),
1993 mouse_context_menu: None,
1994 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1995 completion_tasks: Default::default(),
1996 signature_help_state: SignatureHelpState::default(),
1997 auto_signature_help: None,
1998 find_all_references_task_sources: Vec::new(),
1999 next_completion_id: 0,
2000 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2001 next_inlay_id: 0,
2002 code_action_providers,
2003 available_code_actions: Default::default(),
2004 code_actions_task: Default::default(),
2005 document_highlights_task: Default::default(),
2006 linked_editing_range_task: Default::default(),
2007 pending_rename: Default::default(),
2008 searchable: true,
2009 cursor_shape: EditorSettings::get_global(cx)
2010 .cursor_shape
2011 .unwrap_or_default(),
2012 current_line_highlight: None,
2013 autoindent_mode: Some(AutoindentMode::EachLine),
2014 collapse_matches: false,
2015 workspace: None,
2016 input_enabled: true,
2017 use_modal_editing: mode == EditorMode::Full,
2018 read_only: false,
2019 use_autoclose: true,
2020 use_auto_surround: true,
2021 auto_replace_emoji_shortcode: false,
2022 leader_peer_id: None,
2023 remote_id: None,
2024 hover_state: Default::default(),
2025 hovered_link_state: Default::default(),
2026 inline_completion_provider: None,
2027 active_inline_completion: None,
2028 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2029 expanded_hunks: ExpandedHunks::default(),
2030 gutter_hovered: false,
2031 pixel_position_of_newest_cursor: None,
2032 last_bounds: None,
2033 expect_bounds_change: None,
2034 gutter_dimensions: GutterDimensions::default(),
2035 style: None,
2036 show_cursor_names: false,
2037 hovered_cursors: Default::default(),
2038 next_editor_action_id: EditorActionId::default(),
2039 editor_actions: Rc::default(),
2040 show_inline_completions_override: None,
2041 enable_inline_completions: true,
2042 custom_context_menu: None,
2043 show_git_blame_gutter: false,
2044 show_git_blame_inline: false,
2045 show_selection_menu: None,
2046 show_git_blame_inline_delay_task: None,
2047 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2048 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2049 .session
2050 .restore_unsaved_buffers,
2051 blame: None,
2052 blame_subscription: None,
2053 tasks: Default::default(),
2054 _subscriptions: vec![
2055 cx.observe(&buffer, Self::on_buffer_changed),
2056 cx.subscribe(&buffer, Self::on_buffer_event),
2057 cx.observe(&display_map, Self::on_display_map_changed),
2058 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2059 cx.observe_global::<SettingsStore>(Self::settings_changed),
2060 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2061 cx.observe_window_activation(|editor, cx| {
2062 let active = cx.is_window_active();
2063 editor.blink_manager.update(cx, |blink_manager, cx| {
2064 if active {
2065 blink_manager.enable(cx);
2066 } else {
2067 blink_manager.disable(cx);
2068 }
2069 });
2070 }),
2071 ],
2072 tasks_update_task: None,
2073 linked_edit_ranges: Default::default(),
2074 previous_search_ranges: None,
2075 breadcrumb_header: None,
2076 focused_block: None,
2077 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2078 addons: HashMap::default(),
2079 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2080 text_style_refinement: None,
2081 };
2082 this.tasks_update_task = Some(this.refresh_runnables(cx));
2083 this._subscriptions.extend(project_subscriptions);
2084
2085 this.end_selection(cx);
2086 this.scroll_manager.show_scrollbar(cx);
2087
2088 if mode == EditorMode::Full {
2089 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2090 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2091
2092 if this.git_blame_inline_enabled {
2093 this.git_blame_inline_enabled = true;
2094 this.start_git_blame_inline(false, cx);
2095 }
2096 }
2097
2098 this.report_editor_event("open", None, cx);
2099 this
2100 }
2101
2102 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2103 self.mouse_context_menu
2104 .as_ref()
2105 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2106 }
2107
2108 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2109 let mut key_context = KeyContext::new_with_defaults();
2110 key_context.add("Editor");
2111 let mode = match self.mode {
2112 EditorMode::SingleLine { .. } => "single_line",
2113 EditorMode::AutoHeight { .. } => "auto_height",
2114 EditorMode::Full => "full",
2115 };
2116
2117 if EditorSettings::jupyter_enabled(cx) {
2118 key_context.add("jupyter");
2119 }
2120
2121 key_context.set("mode", mode);
2122 if self.pending_rename.is_some() {
2123 key_context.add("renaming");
2124 }
2125 if self.context_menu_visible() {
2126 match self.context_menu.read().as_ref() {
2127 Some(ContextMenu::Completions(_)) => {
2128 key_context.add("menu");
2129 key_context.add("showing_completions")
2130 }
2131 Some(ContextMenu::CodeActions(_)) => {
2132 key_context.add("menu");
2133 key_context.add("showing_code_actions")
2134 }
2135 None => {}
2136 }
2137 }
2138
2139 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2140 if !self.focus_handle(cx).contains_focused(cx)
2141 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2142 {
2143 for addon in self.addons.values() {
2144 addon.extend_key_context(&mut key_context, cx)
2145 }
2146 }
2147
2148 if let Some(extension) = self
2149 .buffer
2150 .read(cx)
2151 .as_singleton()
2152 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2153 {
2154 key_context.set("extension", extension.to_string());
2155 }
2156
2157 if self.has_active_inline_completion(cx) {
2158 key_context.add("copilot_suggestion");
2159 key_context.add("inline_completion");
2160 }
2161
2162 key_context
2163 }
2164
2165 pub fn new_file(
2166 workspace: &mut Workspace,
2167 _: &workspace::NewFile,
2168 cx: &mut ViewContext<Workspace>,
2169 ) {
2170 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2171 "Failed to create buffer",
2172 cx,
2173 |e, _| match e.error_code() {
2174 ErrorCode::RemoteUpgradeRequired => Some(format!(
2175 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2176 e.error_tag("required").unwrap_or("the latest version")
2177 )),
2178 _ => None,
2179 },
2180 );
2181 }
2182
2183 pub fn new_in_workspace(
2184 workspace: &mut Workspace,
2185 cx: &mut ViewContext<Workspace>,
2186 ) -> Task<Result<View<Editor>>> {
2187 let project = workspace.project().clone();
2188 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2189
2190 cx.spawn(|workspace, mut cx| async move {
2191 let buffer = create.await?;
2192 workspace.update(&mut cx, |workspace, cx| {
2193 let editor =
2194 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2195 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2196 editor
2197 })
2198 })
2199 }
2200
2201 fn new_file_vertical(
2202 workspace: &mut Workspace,
2203 _: &workspace::NewFileSplitVertical,
2204 cx: &mut ViewContext<Workspace>,
2205 ) {
2206 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2207 }
2208
2209 fn new_file_horizontal(
2210 workspace: &mut Workspace,
2211 _: &workspace::NewFileSplitHorizontal,
2212 cx: &mut ViewContext<Workspace>,
2213 ) {
2214 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2215 }
2216
2217 fn new_file_in_direction(
2218 workspace: &mut Workspace,
2219 direction: SplitDirection,
2220 cx: &mut ViewContext<Workspace>,
2221 ) {
2222 let project = workspace.project().clone();
2223 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2224
2225 cx.spawn(|workspace, mut cx| async move {
2226 let buffer = create.await?;
2227 workspace.update(&mut cx, move |workspace, cx| {
2228 workspace.split_item(
2229 direction,
2230 Box::new(
2231 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2232 ),
2233 cx,
2234 )
2235 })?;
2236 anyhow::Ok(())
2237 })
2238 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2239 ErrorCode::RemoteUpgradeRequired => Some(format!(
2240 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2241 e.error_tag("required").unwrap_or("the latest version")
2242 )),
2243 _ => None,
2244 });
2245 }
2246
2247 pub fn leader_peer_id(&self) -> Option<PeerId> {
2248 self.leader_peer_id
2249 }
2250
2251 pub fn buffer(&self) -> &Model<MultiBuffer> {
2252 &self.buffer
2253 }
2254
2255 pub fn workspace(&self) -> Option<View<Workspace>> {
2256 self.workspace.as_ref()?.0.upgrade()
2257 }
2258
2259 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2260 self.buffer().read(cx).title(cx)
2261 }
2262
2263 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2264 let git_blame_gutter_max_author_length = self
2265 .render_git_blame_gutter(cx)
2266 .then(|| {
2267 if let Some(blame) = self.blame.as_ref() {
2268 let max_author_length =
2269 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2270 Some(max_author_length)
2271 } else {
2272 None
2273 }
2274 })
2275 .flatten();
2276
2277 EditorSnapshot {
2278 mode: self.mode,
2279 show_gutter: self.show_gutter,
2280 show_line_numbers: self.show_line_numbers,
2281 show_git_diff_gutter: self.show_git_diff_gutter,
2282 show_code_actions: self.show_code_actions,
2283 show_runnables: self.show_runnables,
2284 git_blame_gutter_max_author_length,
2285 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2286 scroll_anchor: self.scroll_manager.anchor(),
2287 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2288 placeholder_text: self.placeholder_text.clone(),
2289 is_focused: self.focus_handle.is_focused(cx),
2290 current_line_highlight: self
2291 .current_line_highlight
2292 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2293 gutter_hovered: self.gutter_hovered,
2294 }
2295 }
2296
2297 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2298 self.buffer.read(cx).language_at(point, cx)
2299 }
2300
2301 pub fn file_at<T: ToOffset>(
2302 &self,
2303 point: T,
2304 cx: &AppContext,
2305 ) -> Option<Arc<dyn language::File>> {
2306 self.buffer.read(cx).read(cx).file_at(point).cloned()
2307 }
2308
2309 pub fn active_excerpt(
2310 &self,
2311 cx: &AppContext,
2312 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2313 self.buffer
2314 .read(cx)
2315 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2316 }
2317
2318 pub fn mode(&self) -> EditorMode {
2319 self.mode
2320 }
2321
2322 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2323 self.collaboration_hub.as_deref()
2324 }
2325
2326 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2327 self.collaboration_hub = Some(hub);
2328 }
2329
2330 pub fn set_custom_context_menu(
2331 &mut self,
2332 f: impl 'static
2333 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2334 ) {
2335 self.custom_context_menu = Some(Box::new(f))
2336 }
2337
2338 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2339 self.completion_provider = provider;
2340 }
2341
2342 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2343 self.semantics_provider.clone()
2344 }
2345
2346 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2347 self.semantics_provider = provider;
2348 }
2349
2350 pub fn set_inline_completion_provider<T>(
2351 &mut self,
2352 provider: Option<Model<T>>,
2353 cx: &mut ViewContext<Self>,
2354 ) where
2355 T: InlineCompletionProvider,
2356 {
2357 self.inline_completion_provider =
2358 provider.map(|provider| RegisteredInlineCompletionProvider {
2359 _subscription: cx.observe(&provider, |this, _, cx| {
2360 if this.focus_handle.is_focused(cx) {
2361 this.update_visible_inline_completion(cx);
2362 }
2363 }),
2364 provider: Arc::new(provider),
2365 });
2366 self.refresh_inline_completion(false, false, cx);
2367 }
2368
2369 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2370 self.placeholder_text.as_deref()
2371 }
2372
2373 pub fn set_placeholder_text(
2374 &mut self,
2375 placeholder_text: impl Into<Arc<str>>,
2376 cx: &mut ViewContext<Self>,
2377 ) {
2378 let placeholder_text = Some(placeholder_text.into());
2379 if self.placeholder_text != placeholder_text {
2380 self.placeholder_text = placeholder_text;
2381 cx.notify();
2382 }
2383 }
2384
2385 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2386 self.cursor_shape = cursor_shape;
2387
2388 // Disrupt blink for immediate user feedback that the cursor shape has changed
2389 self.blink_manager.update(cx, BlinkManager::show_cursor);
2390
2391 cx.notify();
2392 }
2393
2394 pub fn set_current_line_highlight(
2395 &mut self,
2396 current_line_highlight: Option<CurrentLineHighlight>,
2397 ) {
2398 self.current_line_highlight = current_line_highlight;
2399 }
2400
2401 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2402 self.collapse_matches = collapse_matches;
2403 }
2404
2405 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2406 if self.collapse_matches {
2407 return range.start..range.start;
2408 }
2409 range.clone()
2410 }
2411
2412 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2413 if self.display_map.read(cx).clip_at_line_ends != clip {
2414 self.display_map
2415 .update(cx, |map, _| map.clip_at_line_ends = clip);
2416 }
2417 }
2418
2419 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2420 self.input_enabled = input_enabled;
2421 }
2422
2423 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2424 self.enable_inline_completions = enabled;
2425 }
2426
2427 pub fn set_autoindent(&mut self, autoindent: bool) {
2428 if autoindent {
2429 self.autoindent_mode = Some(AutoindentMode::EachLine);
2430 } else {
2431 self.autoindent_mode = None;
2432 }
2433 }
2434
2435 pub fn read_only(&self, cx: &AppContext) -> bool {
2436 self.read_only || self.buffer.read(cx).read_only()
2437 }
2438
2439 pub fn set_read_only(&mut self, read_only: bool) {
2440 self.read_only = read_only;
2441 }
2442
2443 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2444 self.use_autoclose = autoclose;
2445 }
2446
2447 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2448 self.use_auto_surround = auto_surround;
2449 }
2450
2451 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2452 self.auto_replace_emoji_shortcode = auto_replace;
2453 }
2454
2455 pub fn toggle_inline_completions(
2456 &mut self,
2457 _: &ToggleInlineCompletions,
2458 cx: &mut ViewContext<Self>,
2459 ) {
2460 if self.show_inline_completions_override.is_some() {
2461 self.set_show_inline_completions(None, cx);
2462 } else {
2463 let cursor = self.selections.newest_anchor().head();
2464 if let Some((buffer, cursor_buffer_position)) =
2465 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2466 {
2467 let show_inline_completions =
2468 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2469 self.set_show_inline_completions(Some(show_inline_completions), cx);
2470 }
2471 }
2472 }
2473
2474 pub fn set_show_inline_completions(
2475 &mut self,
2476 show_inline_completions: Option<bool>,
2477 cx: &mut ViewContext<Self>,
2478 ) {
2479 self.show_inline_completions_override = show_inline_completions;
2480 self.refresh_inline_completion(false, true, cx);
2481 }
2482
2483 fn should_show_inline_completions(
2484 &self,
2485 buffer: &Model<Buffer>,
2486 buffer_position: language::Anchor,
2487 cx: &AppContext,
2488 ) -> bool {
2489 if let Some(provider) = self.inline_completion_provider() {
2490 if let Some(show_inline_completions) = self.show_inline_completions_override {
2491 show_inline_completions
2492 } else {
2493 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2494 }
2495 } else {
2496 false
2497 }
2498 }
2499
2500 pub fn set_use_modal_editing(&mut self, to: bool) {
2501 self.use_modal_editing = to;
2502 }
2503
2504 pub fn use_modal_editing(&self) -> bool {
2505 self.use_modal_editing
2506 }
2507
2508 fn selections_did_change(
2509 &mut self,
2510 local: bool,
2511 old_cursor_position: &Anchor,
2512 show_completions: bool,
2513 cx: &mut ViewContext<Self>,
2514 ) {
2515 cx.invalidate_character_coordinates();
2516
2517 // Copy selections to primary selection buffer
2518 #[cfg(target_os = "linux")]
2519 if local {
2520 let selections = self.selections.all::<usize>(cx);
2521 let buffer_handle = self.buffer.read(cx).read(cx);
2522
2523 let mut text = String::new();
2524 for (index, selection) in selections.iter().enumerate() {
2525 let text_for_selection = buffer_handle
2526 .text_for_range(selection.start..selection.end)
2527 .collect::<String>();
2528
2529 text.push_str(&text_for_selection);
2530 if index != selections.len() - 1 {
2531 text.push('\n');
2532 }
2533 }
2534
2535 if !text.is_empty() {
2536 cx.write_to_primary(ClipboardItem::new_string(text));
2537 }
2538 }
2539
2540 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2541 self.buffer.update(cx, |buffer, cx| {
2542 buffer.set_active_selections(
2543 &self.selections.disjoint_anchors(),
2544 self.selections.line_mode,
2545 self.cursor_shape,
2546 cx,
2547 )
2548 });
2549 }
2550 let display_map = self
2551 .display_map
2552 .update(cx, |display_map, cx| display_map.snapshot(cx));
2553 let buffer = &display_map.buffer_snapshot;
2554 self.add_selections_state = None;
2555 self.select_next_state = None;
2556 self.select_prev_state = None;
2557 self.select_larger_syntax_node_stack.clear();
2558 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2559 self.snippet_stack
2560 .invalidate(&self.selections.disjoint_anchors(), buffer);
2561 self.take_rename(false, cx);
2562
2563 let new_cursor_position = self.selections.newest_anchor().head();
2564
2565 self.push_to_nav_history(
2566 *old_cursor_position,
2567 Some(new_cursor_position.to_point(buffer)),
2568 cx,
2569 );
2570
2571 if local {
2572 let new_cursor_position = self.selections.newest_anchor().head();
2573 let mut context_menu = self.context_menu.write();
2574 let completion_menu = match context_menu.as_ref() {
2575 Some(ContextMenu::Completions(menu)) => Some(menu),
2576
2577 _ => {
2578 *context_menu = None;
2579 None
2580 }
2581 };
2582
2583 if let Some(completion_menu) = completion_menu {
2584 let cursor_position = new_cursor_position.to_offset(buffer);
2585 let (word_range, kind) =
2586 buffer.surrounding_word(completion_menu.initial_position, true);
2587 if kind == Some(CharKind::Word)
2588 && word_range.to_inclusive().contains(&cursor_position)
2589 {
2590 let mut completion_menu = completion_menu.clone();
2591 drop(context_menu);
2592
2593 let query = Self::completion_query(buffer, cursor_position);
2594 cx.spawn(move |this, mut cx| async move {
2595 completion_menu
2596 .filter(query.as_deref(), cx.background_executor().clone())
2597 .await;
2598
2599 this.update(&mut cx, |this, cx| {
2600 let mut context_menu = this.context_menu.write();
2601 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2602 return;
2603 };
2604
2605 if menu.id > completion_menu.id {
2606 return;
2607 }
2608
2609 *context_menu = Some(ContextMenu::Completions(completion_menu));
2610 drop(context_menu);
2611 cx.notify();
2612 })
2613 })
2614 .detach();
2615
2616 if show_completions {
2617 self.show_completions(&ShowCompletions { trigger: None }, cx);
2618 }
2619 } else {
2620 drop(context_menu);
2621 self.hide_context_menu(cx);
2622 }
2623 } else {
2624 drop(context_menu);
2625 }
2626
2627 hide_hover(self, cx);
2628
2629 if old_cursor_position.to_display_point(&display_map).row()
2630 != new_cursor_position.to_display_point(&display_map).row()
2631 {
2632 self.available_code_actions.take();
2633 }
2634 self.refresh_code_actions(cx);
2635 self.refresh_document_highlights(cx);
2636 refresh_matching_bracket_highlights(self, cx);
2637 self.discard_inline_completion(false, cx);
2638 linked_editing_ranges::refresh_linked_ranges(self, cx);
2639 if self.git_blame_inline_enabled {
2640 self.start_inline_blame_timer(cx);
2641 }
2642 }
2643
2644 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2645 cx.emit(EditorEvent::SelectionsChanged { local });
2646
2647 if self.selections.disjoint_anchors().len() == 1 {
2648 cx.emit(SearchEvent::ActiveMatchChanged)
2649 }
2650 cx.notify();
2651 }
2652
2653 pub fn change_selections<R>(
2654 &mut self,
2655 autoscroll: Option<Autoscroll>,
2656 cx: &mut ViewContext<Self>,
2657 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2658 ) -> R {
2659 self.change_selections_inner(autoscroll, true, cx, change)
2660 }
2661
2662 pub fn change_selections_inner<R>(
2663 &mut self,
2664 autoscroll: Option<Autoscroll>,
2665 request_completions: bool,
2666 cx: &mut ViewContext<Self>,
2667 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2668 ) -> R {
2669 let old_cursor_position = self.selections.newest_anchor().head();
2670 self.push_to_selection_history();
2671
2672 let (changed, result) = self.selections.change_with(cx, change);
2673
2674 if changed {
2675 if let Some(autoscroll) = autoscroll {
2676 self.request_autoscroll(autoscroll, cx);
2677 }
2678 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2679
2680 if self.should_open_signature_help_automatically(
2681 &old_cursor_position,
2682 self.signature_help_state.backspace_pressed(),
2683 cx,
2684 ) {
2685 self.show_signature_help(&ShowSignatureHelp, cx);
2686 }
2687 self.signature_help_state.set_backspace_pressed(false);
2688 }
2689
2690 result
2691 }
2692
2693 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2694 where
2695 I: IntoIterator<Item = (Range<S>, T)>,
2696 S: ToOffset,
2697 T: Into<Arc<str>>,
2698 {
2699 if self.read_only(cx) {
2700 return;
2701 }
2702
2703 self.buffer
2704 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2705 }
2706
2707 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2708 where
2709 I: IntoIterator<Item = (Range<S>, T)>,
2710 S: ToOffset,
2711 T: Into<Arc<str>>,
2712 {
2713 if self.read_only(cx) {
2714 return;
2715 }
2716
2717 self.buffer.update(cx, |buffer, cx| {
2718 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2719 });
2720 }
2721
2722 pub fn edit_with_block_indent<I, S, T>(
2723 &mut self,
2724 edits: I,
2725 original_indent_columns: Vec<u32>,
2726 cx: &mut ViewContext<Self>,
2727 ) where
2728 I: IntoIterator<Item = (Range<S>, T)>,
2729 S: ToOffset,
2730 T: Into<Arc<str>>,
2731 {
2732 if self.read_only(cx) {
2733 return;
2734 }
2735
2736 self.buffer.update(cx, |buffer, cx| {
2737 buffer.edit(
2738 edits,
2739 Some(AutoindentMode::Block {
2740 original_indent_columns,
2741 }),
2742 cx,
2743 )
2744 });
2745 }
2746
2747 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2748 self.hide_context_menu(cx);
2749
2750 match phase {
2751 SelectPhase::Begin {
2752 position,
2753 add,
2754 click_count,
2755 } => self.begin_selection(position, add, click_count, cx),
2756 SelectPhase::BeginColumnar {
2757 position,
2758 goal_column,
2759 reset,
2760 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2761 SelectPhase::Extend {
2762 position,
2763 click_count,
2764 } => self.extend_selection(position, click_count, cx),
2765 SelectPhase::Update {
2766 position,
2767 goal_column,
2768 scroll_delta,
2769 } => self.update_selection(position, goal_column, scroll_delta, cx),
2770 SelectPhase::End => self.end_selection(cx),
2771 }
2772 }
2773
2774 fn extend_selection(
2775 &mut self,
2776 position: DisplayPoint,
2777 click_count: usize,
2778 cx: &mut ViewContext<Self>,
2779 ) {
2780 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2781 let tail = self.selections.newest::<usize>(cx).tail();
2782 self.begin_selection(position, false, click_count, cx);
2783
2784 let position = position.to_offset(&display_map, Bias::Left);
2785 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2786
2787 let mut pending_selection = self
2788 .selections
2789 .pending_anchor()
2790 .expect("extend_selection not called with pending selection");
2791 if position >= tail {
2792 pending_selection.start = tail_anchor;
2793 } else {
2794 pending_selection.end = tail_anchor;
2795 pending_selection.reversed = true;
2796 }
2797
2798 let mut pending_mode = self.selections.pending_mode().unwrap();
2799 match &mut pending_mode {
2800 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2801 _ => {}
2802 }
2803
2804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2805 s.set_pending(pending_selection, pending_mode)
2806 });
2807 }
2808
2809 fn begin_selection(
2810 &mut self,
2811 position: DisplayPoint,
2812 add: bool,
2813 click_count: usize,
2814 cx: &mut ViewContext<Self>,
2815 ) {
2816 if !self.focus_handle.is_focused(cx) {
2817 self.last_focused_descendant = None;
2818 cx.focus(&self.focus_handle);
2819 }
2820
2821 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2822 let buffer = &display_map.buffer_snapshot;
2823 let newest_selection = self.selections.newest_anchor().clone();
2824 let position = display_map.clip_point(position, Bias::Left);
2825
2826 let start;
2827 let end;
2828 let mode;
2829 let auto_scroll;
2830 match click_count {
2831 1 => {
2832 start = buffer.anchor_before(position.to_point(&display_map));
2833 end = start;
2834 mode = SelectMode::Character;
2835 auto_scroll = true;
2836 }
2837 2 => {
2838 let range = movement::surrounding_word(&display_map, position);
2839 start = buffer.anchor_before(range.start.to_point(&display_map));
2840 end = buffer.anchor_before(range.end.to_point(&display_map));
2841 mode = SelectMode::Word(start..end);
2842 auto_scroll = true;
2843 }
2844 3 => {
2845 let position = display_map
2846 .clip_point(position, Bias::Left)
2847 .to_point(&display_map);
2848 let line_start = display_map.prev_line_boundary(position).0;
2849 let next_line_start = buffer.clip_point(
2850 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2851 Bias::Left,
2852 );
2853 start = buffer.anchor_before(line_start);
2854 end = buffer.anchor_before(next_line_start);
2855 mode = SelectMode::Line(start..end);
2856 auto_scroll = true;
2857 }
2858 _ => {
2859 start = buffer.anchor_before(0);
2860 end = buffer.anchor_before(buffer.len());
2861 mode = SelectMode::All;
2862 auto_scroll = false;
2863 }
2864 }
2865
2866 let point_to_delete: Option<usize> = {
2867 let selected_points: Vec<Selection<Point>> =
2868 self.selections.disjoint_in_range(start..end, cx);
2869
2870 if !add || click_count > 1 {
2871 None
2872 } else if !selected_points.is_empty() {
2873 Some(selected_points[0].id)
2874 } else {
2875 let clicked_point_already_selected =
2876 self.selections.disjoint.iter().find(|selection| {
2877 selection.start.to_point(buffer) == start.to_point(buffer)
2878 || selection.end.to_point(buffer) == end.to_point(buffer)
2879 });
2880
2881 clicked_point_already_selected.map(|selection| selection.id)
2882 }
2883 };
2884
2885 let selections_count = self.selections.count();
2886
2887 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2888 if let Some(point_to_delete) = point_to_delete {
2889 s.delete(point_to_delete);
2890
2891 if selections_count == 1 {
2892 s.set_pending_anchor_range(start..end, mode);
2893 }
2894 } else {
2895 if !add {
2896 s.clear_disjoint();
2897 } else if click_count > 1 {
2898 s.delete(newest_selection.id)
2899 }
2900
2901 s.set_pending_anchor_range(start..end, mode);
2902 }
2903 });
2904 }
2905
2906 fn begin_columnar_selection(
2907 &mut self,
2908 position: DisplayPoint,
2909 goal_column: u32,
2910 reset: bool,
2911 cx: &mut ViewContext<Self>,
2912 ) {
2913 if !self.focus_handle.is_focused(cx) {
2914 self.last_focused_descendant = None;
2915 cx.focus(&self.focus_handle);
2916 }
2917
2918 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2919
2920 if reset {
2921 let pointer_position = display_map
2922 .buffer_snapshot
2923 .anchor_before(position.to_point(&display_map));
2924
2925 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2926 s.clear_disjoint();
2927 s.set_pending_anchor_range(
2928 pointer_position..pointer_position,
2929 SelectMode::Character,
2930 );
2931 });
2932 }
2933
2934 let tail = self.selections.newest::<Point>(cx).tail();
2935 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2936
2937 if !reset {
2938 self.select_columns(
2939 tail.to_display_point(&display_map),
2940 position,
2941 goal_column,
2942 &display_map,
2943 cx,
2944 );
2945 }
2946 }
2947
2948 fn update_selection(
2949 &mut self,
2950 position: DisplayPoint,
2951 goal_column: u32,
2952 scroll_delta: gpui::Point<f32>,
2953 cx: &mut ViewContext<Self>,
2954 ) {
2955 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2956
2957 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2958 let tail = tail.to_display_point(&display_map);
2959 self.select_columns(tail, position, goal_column, &display_map, cx);
2960 } else if let Some(mut pending) = self.selections.pending_anchor() {
2961 let buffer = self.buffer.read(cx).snapshot(cx);
2962 let head;
2963 let tail;
2964 let mode = self.selections.pending_mode().unwrap();
2965 match &mode {
2966 SelectMode::Character => {
2967 head = position.to_point(&display_map);
2968 tail = pending.tail().to_point(&buffer);
2969 }
2970 SelectMode::Word(original_range) => {
2971 let original_display_range = original_range.start.to_display_point(&display_map)
2972 ..original_range.end.to_display_point(&display_map);
2973 let original_buffer_range = original_display_range.start.to_point(&display_map)
2974 ..original_display_range.end.to_point(&display_map);
2975 if movement::is_inside_word(&display_map, position)
2976 || original_display_range.contains(&position)
2977 {
2978 let word_range = movement::surrounding_word(&display_map, position);
2979 if word_range.start < original_display_range.start {
2980 head = word_range.start.to_point(&display_map);
2981 } else {
2982 head = word_range.end.to_point(&display_map);
2983 }
2984 } else {
2985 head = position.to_point(&display_map);
2986 }
2987
2988 if head <= original_buffer_range.start {
2989 tail = original_buffer_range.end;
2990 } else {
2991 tail = original_buffer_range.start;
2992 }
2993 }
2994 SelectMode::Line(original_range) => {
2995 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2996
2997 let position = display_map
2998 .clip_point(position, Bias::Left)
2999 .to_point(&display_map);
3000 let line_start = display_map.prev_line_boundary(position).0;
3001 let next_line_start = buffer.clip_point(
3002 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3003 Bias::Left,
3004 );
3005
3006 if line_start < original_range.start {
3007 head = line_start
3008 } else {
3009 head = next_line_start
3010 }
3011
3012 if head <= original_range.start {
3013 tail = original_range.end;
3014 } else {
3015 tail = original_range.start;
3016 }
3017 }
3018 SelectMode::All => {
3019 return;
3020 }
3021 };
3022
3023 if head < tail {
3024 pending.start = buffer.anchor_before(head);
3025 pending.end = buffer.anchor_before(tail);
3026 pending.reversed = true;
3027 } else {
3028 pending.start = buffer.anchor_before(tail);
3029 pending.end = buffer.anchor_before(head);
3030 pending.reversed = false;
3031 }
3032
3033 self.change_selections(None, cx, |s| {
3034 s.set_pending(pending, mode);
3035 });
3036 } else {
3037 log::error!("update_selection dispatched with no pending selection");
3038 return;
3039 }
3040
3041 self.apply_scroll_delta(scroll_delta, cx);
3042 cx.notify();
3043 }
3044
3045 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3046 self.columnar_selection_tail.take();
3047 if self.selections.pending_anchor().is_some() {
3048 let selections = self.selections.all::<usize>(cx);
3049 self.change_selections(None, cx, |s| {
3050 s.select(selections);
3051 s.clear_pending();
3052 });
3053 }
3054 }
3055
3056 fn select_columns(
3057 &mut self,
3058 tail: DisplayPoint,
3059 head: DisplayPoint,
3060 goal_column: u32,
3061 display_map: &DisplaySnapshot,
3062 cx: &mut ViewContext<Self>,
3063 ) {
3064 let start_row = cmp::min(tail.row(), head.row());
3065 let end_row = cmp::max(tail.row(), head.row());
3066 let start_column = cmp::min(tail.column(), goal_column);
3067 let end_column = cmp::max(tail.column(), goal_column);
3068 let reversed = start_column < tail.column();
3069
3070 let selection_ranges = (start_row.0..=end_row.0)
3071 .map(DisplayRow)
3072 .filter_map(|row| {
3073 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3074 let start = display_map
3075 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3076 .to_point(display_map);
3077 let end = display_map
3078 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3079 .to_point(display_map);
3080 if reversed {
3081 Some(end..start)
3082 } else {
3083 Some(start..end)
3084 }
3085 } else {
3086 None
3087 }
3088 })
3089 .collect::<Vec<_>>();
3090
3091 self.change_selections(None, cx, |s| {
3092 s.select_ranges(selection_ranges);
3093 });
3094 cx.notify();
3095 }
3096
3097 pub fn has_pending_nonempty_selection(&self) -> bool {
3098 let pending_nonempty_selection = match self.selections.pending_anchor() {
3099 Some(Selection { start, end, .. }) => start != end,
3100 None => false,
3101 };
3102
3103 pending_nonempty_selection
3104 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3105 }
3106
3107 pub fn has_pending_selection(&self) -> bool {
3108 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3109 }
3110
3111 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3112 if self.clear_expanded_diff_hunks(cx) {
3113 cx.notify();
3114 return;
3115 }
3116 if self.dismiss_menus_and_popups(true, cx) {
3117 return;
3118 }
3119
3120 if self.mode == EditorMode::Full
3121 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3122 {
3123 return;
3124 }
3125
3126 cx.propagate();
3127 }
3128
3129 pub fn dismiss_menus_and_popups(
3130 &mut self,
3131 should_report_inline_completion_event: bool,
3132 cx: &mut ViewContext<Self>,
3133 ) -> bool {
3134 if self.take_rename(false, cx).is_some() {
3135 return true;
3136 }
3137
3138 if hide_hover(self, cx) {
3139 return true;
3140 }
3141
3142 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3143 return true;
3144 }
3145
3146 if self.hide_context_menu(cx).is_some() {
3147 return true;
3148 }
3149
3150 if self.mouse_context_menu.take().is_some() {
3151 return true;
3152 }
3153
3154 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3155 return true;
3156 }
3157
3158 if self.snippet_stack.pop().is_some() {
3159 return true;
3160 }
3161
3162 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3163 self.dismiss_diagnostics(cx);
3164 return true;
3165 }
3166
3167 false
3168 }
3169
3170 fn linked_editing_ranges_for(
3171 &self,
3172 selection: Range<text::Anchor>,
3173 cx: &AppContext,
3174 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3175 if self.linked_edit_ranges.is_empty() {
3176 return None;
3177 }
3178 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3179 selection.end.buffer_id.and_then(|end_buffer_id| {
3180 if selection.start.buffer_id != Some(end_buffer_id) {
3181 return None;
3182 }
3183 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3184 let snapshot = buffer.read(cx).snapshot();
3185 self.linked_edit_ranges
3186 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3187 .map(|ranges| (ranges, snapshot, buffer))
3188 })?;
3189 use text::ToOffset as TO;
3190 // find offset from the start of current range to current cursor position
3191 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3192
3193 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3194 let start_difference = start_offset - start_byte_offset;
3195 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3196 let end_difference = end_offset - start_byte_offset;
3197 // Current range has associated linked ranges.
3198 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3199 for range in linked_ranges.iter() {
3200 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3201 let end_offset = start_offset + end_difference;
3202 let start_offset = start_offset + start_difference;
3203 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3204 continue;
3205 }
3206 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3207 if s.start.buffer_id != selection.start.buffer_id
3208 || s.end.buffer_id != selection.end.buffer_id
3209 {
3210 return false;
3211 }
3212 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3213 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3214 }) {
3215 continue;
3216 }
3217 let start = buffer_snapshot.anchor_after(start_offset);
3218 let end = buffer_snapshot.anchor_after(end_offset);
3219 linked_edits
3220 .entry(buffer.clone())
3221 .or_default()
3222 .push(start..end);
3223 }
3224 Some(linked_edits)
3225 }
3226
3227 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3228 let text: Arc<str> = text.into();
3229
3230 if self.read_only(cx) {
3231 return;
3232 }
3233
3234 let selections = self.selections.all_adjusted(cx);
3235 let mut bracket_inserted = false;
3236 let mut edits = Vec::new();
3237 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3238 let mut new_selections = Vec::with_capacity(selections.len());
3239 let mut new_autoclose_regions = Vec::new();
3240 let snapshot = self.buffer.read(cx).read(cx);
3241
3242 for (selection, autoclose_region) in
3243 self.selections_with_autoclose_regions(selections, &snapshot)
3244 {
3245 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3246 // Determine if the inserted text matches the opening or closing
3247 // bracket of any of this language's bracket pairs.
3248 let mut bracket_pair = None;
3249 let mut is_bracket_pair_start = false;
3250 let mut is_bracket_pair_end = false;
3251 if !text.is_empty() {
3252 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3253 // and they are removing the character that triggered IME popup.
3254 for (pair, enabled) in scope.brackets() {
3255 if !pair.close && !pair.surround {
3256 continue;
3257 }
3258
3259 if enabled && pair.start.ends_with(text.as_ref()) {
3260 let prefix_len = pair.start.len() - text.len();
3261 let preceding_text_matches_prefix = prefix_len == 0
3262 || (selection.start.column >= (prefix_len as u32)
3263 && snapshot.contains_str_at(
3264 Point::new(
3265 selection.start.row,
3266 selection.start.column - (prefix_len as u32),
3267 ),
3268 &pair.start[..prefix_len],
3269 ));
3270 if preceding_text_matches_prefix {
3271 bracket_pair = Some(pair.clone());
3272 is_bracket_pair_start = true;
3273 break;
3274 }
3275 }
3276 if pair.end.as_str() == text.as_ref() {
3277 bracket_pair = Some(pair.clone());
3278 is_bracket_pair_end = true;
3279 break;
3280 }
3281 }
3282 }
3283
3284 if let Some(bracket_pair) = bracket_pair {
3285 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3286 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3287 let auto_surround =
3288 self.use_auto_surround && snapshot_settings.use_auto_surround;
3289 if selection.is_empty() {
3290 if is_bracket_pair_start {
3291 // If the inserted text is a suffix of an opening bracket and the
3292 // selection is preceded by the rest of the opening bracket, then
3293 // insert the closing bracket.
3294 let following_text_allows_autoclose = snapshot
3295 .chars_at(selection.start)
3296 .next()
3297 .map_or(true, |c| scope.should_autoclose_before(c));
3298
3299 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3300 && bracket_pair.start.len() == 1
3301 {
3302 let target = bracket_pair.start.chars().next().unwrap();
3303 let current_line_count = snapshot
3304 .reversed_chars_at(selection.start)
3305 .take_while(|&c| c != '\n')
3306 .filter(|&c| c == target)
3307 .count();
3308 current_line_count % 2 == 1
3309 } else {
3310 false
3311 };
3312
3313 if autoclose
3314 && bracket_pair.close
3315 && following_text_allows_autoclose
3316 && !is_closing_quote
3317 {
3318 let anchor = snapshot.anchor_before(selection.end);
3319 new_selections.push((selection.map(|_| anchor), text.len()));
3320 new_autoclose_regions.push((
3321 anchor,
3322 text.len(),
3323 selection.id,
3324 bracket_pair.clone(),
3325 ));
3326 edits.push((
3327 selection.range(),
3328 format!("{}{}", text, bracket_pair.end).into(),
3329 ));
3330 bracket_inserted = true;
3331 continue;
3332 }
3333 }
3334
3335 if let Some(region) = autoclose_region {
3336 // If the selection is followed by an auto-inserted closing bracket,
3337 // then don't insert that closing bracket again; just move the selection
3338 // past the closing bracket.
3339 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3340 && text.as_ref() == region.pair.end.as_str();
3341 if should_skip {
3342 let anchor = snapshot.anchor_after(selection.end);
3343 new_selections
3344 .push((selection.map(|_| anchor), region.pair.end.len()));
3345 continue;
3346 }
3347 }
3348
3349 let always_treat_brackets_as_autoclosed = snapshot
3350 .settings_at(selection.start, cx)
3351 .always_treat_brackets_as_autoclosed;
3352 if always_treat_brackets_as_autoclosed
3353 && is_bracket_pair_end
3354 && snapshot.contains_str_at(selection.end, text.as_ref())
3355 {
3356 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3357 // and the inserted text is a closing bracket and the selection is followed
3358 // by the closing bracket then move the selection past the closing bracket.
3359 let anchor = snapshot.anchor_after(selection.end);
3360 new_selections.push((selection.map(|_| anchor), text.len()));
3361 continue;
3362 }
3363 }
3364 // If an opening bracket is 1 character long and is typed while
3365 // text is selected, then surround that text with the bracket pair.
3366 else if auto_surround
3367 && bracket_pair.surround
3368 && is_bracket_pair_start
3369 && bracket_pair.start.chars().count() == 1
3370 {
3371 edits.push((selection.start..selection.start, text.clone()));
3372 edits.push((
3373 selection.end..selection.end,
3374 bracket_pair.end.as_str().into(),
3375 ));
3376 bracket_inserted = true;
3377 new_selections.push((
3378 Selection {
3379 id: selection.id,
3380 start: snapshot.anchor_after(selection.start),
3381 end: snapshot.anchor_before(selection.end),
3382 reversed: selection.reversed,
3383 goal: selection.goal,
3384 },
3385 0,
3386 ));
3387 continue;
3388 }
3389 }
3390 }
3391
3392 if self.auto_replace_emoji_shortcode
3393 && selection.is_empty()
3394 && text.as_ref().ends_with(':')
3395 {
3396 if let Some(possible_emoji_short_code) =
3397 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3398 {
3399 if !possible_emoji_short_code.is_empty() {
3400 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3401 let emoji_shortcode_start = Point::new(
3402 selection.start.row,
3403 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3404 );
3405
3406 // Remove shortcode from buffer
3407 edits.push((
3408 emoji_shortcode_start..selection.start,
3409 "".to_string().into(),
3410 ));
3411 new_selections.push((
3412 Selection {
3413 id: selection.id,
3414 start: snapshot.anchor_after(emoji_shortcode_start),
3415 end: snapshot.anchor_before(selection.start),
3416 reversed: selection.reversed,
3417 goal: selection.goal,
3418 },
3419 0,
3420 ));
3421
3422 // Insert emoji
3423 let selection_start_anchor = snapshot.anchor_after(selection.start);
3424 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3425 edits.push((selection.start..selection.end, emoji.to_string().into()));
3426
3427 continue;
3428 }
3429 }
3430 }
3431 }
3432
3433 // If not handling any auto-close operation, then just replace the selected
3434 // text with the given input and move the selection to the end of the
3435 // newly inserted text.
3436 let anchor = snapshot.anchor_after(selection.end);
3437 if !self.linked_edit_ranges.is_empty() {
3438 let start_anchor = snapshot.anchor_before(selection.start);
3439
3440 let is_word_char = text.chars().next().map_or(true, |char| {
3441 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3442 classifier.is_word(char)
3443 });
3444
3445 if is_word_char {
3446 if let Some(ranges) = self
3447 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3448 {
3449 for (buffer, edits) in ranges {
3450 linked_edits
3451 .entry(buffer.clone())
3452 .or_default()
3453 .extend(edits.into_iter().map(|range| (range, text.clone())));
3454 }
3455 }
3456 }
3457 }
3458
3459 new_selections.push((selection.map(|_| anchor), 0));
3460 edits.push((selection.start..selection.end, text.clone()));
3461 }
3462
3463 drop(snapshot);
3464
3465 self.transact(cx, |this, cx| {
3466 this.buffer.update(cx, |buffer, cx| {
3467 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3468 });
3469 for (buffer, edits) in linked_edits {
3470 buffer.update(cx, |buffer, cx| {
3471 let snapshot = buffer.snapshot();
3472 let edits = edits
3473 .into_iter()
3474 .map(|(range, text)| {
3475 use text::ToPoint as TP;
3476 let end_point = TP::to_point(&range.end, &snapshot);
3477 let start_point = TP::to_point(&range.start, &snapshot);
3478 (start_point..end_point, text)
3479 })
3480 .sorted_by_key(|(range, _)| range.start)
3481 .collect::<Vec<_>>();
3482 buffer.edit(edits, None, cx);
3483 })
3484 }
3485 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3486 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3487 let snapshot = this.buffer.read(cx).read(cx);
3488 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3489 .zip(new_selection_deltas)
3490 .map(|(selection, delta)| Selection {
3491 id: selection.id,
3492 start: selection.start + delta,
3493 end: selection.end + delta,
3494 reversed: selection.reversed,
3495 goal: SelectionGoal::None,
3496 })
3497 .collect::<Vec<_>>();
3498
3499 let mut i = 0;
3500 for (position, delta, selection_id, pair) in new_autoclose_regions {
3501 let position = position.to_offset(&snapshot) + delta;
3502 let start = snapshot.anchor_before(position);
3503 let end = snapshot.anchor_after(position);
3504 while let Some(existing_state) = this.autoclose_regions.get(i) {
3505 match existing_state.range.start.cmp(&start, &snapshot) {
3506 Ordering::Less => i += 1,
3507 Ordering::Greater => break,
3508 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3509 Ordering::Less => i += 1,
3510 Ordering::Equal => break,
3511 Ordering::Greater => break,
3512 },
3513 }
3514 }
3515 this.autoclose_regions.insert(
3516 i,
3517 AutocloseRegion {
3518 selection_id,
3519 range: start..end,
3520 pair,
3521 },
3522 );
3523 }
3524
3525 drop(snapshot);
3526 let had_active_inline_completion = this.has_active_inline_completion(cx);
3527 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3528 s.select(new_selections)
3529 });
3530
3531 if !bracket_inserted {
3532 if let Some(on_type_format_task) =
3533 this.trigger_on_type_formatting(text.to_string(), cx)
3534 {
3535 on_type_format_task.detach_and_log_err(cx);
3536 }
3537 }
3538
3539 let editor_settings = EditorSettings::get_global(cx);
3540 if bracket_inserted
3541 && (editor_settings.auto_signature_help
3542 || editor_settings.show_signature_help_after_edits)
3543 {
3544 this.show_signature_help(&ShowSignatureHelp, cx);
3545 }
3546
3547 let trigger_in_words = !had_active_inline_completion;
3548 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3549 linked_editing_ranges::refresh_linked_ranges(this, cx);
3550 this.refresh_inline_completion(true, false, cx);
3551 });
3552 }
3553
3554 fn find_possible_emoji_shortcode_at_position(
3555 snapshot: &MultiBufferSnapshot,
3556 position: Point,
3557 ) -> Option<String> {
3558 let mut chars = Vec::new();
3559 let mut found_colon = false;
3560 for char in snapshot.reversed_chars_at(position).take(100) {
3561 // Found a possible emoji shortcode in the middle of the buffer
3562 if found_colon {
3563 if char.is_whitespace() {
3564 chars.reverse();
3565 return Some(chars.iter().collect());
3566 }
3567 // If the previous character is not a whitespace, we are in the middle of a word
3568 // and we only want to complete the shortcode if the word is made up of other emojis
3569 let mut containing_word = String::new();
3570 for ch in snapshot
3571 .reversed_chars_at(position)
3572 .skip(chars.len() + 1)
3573 .take(100)
3574 {
3575 if ch.is_whitespace() {
3576 break;
3577 }
3578 containing_word.push(ch);
3579 }
3580 let containing_word = containing_word.chars().rev().collect::<String>();
3581 if util::word_consists_of_emojis(containing_word.as_str()) {
3582 chars.reverse();
3583 return Some(chars.iter().collect());
3584 }
3585 }
3586
3587 if char.is_whitespace() || !char.is_ascii() {
3588 return None;
3589 }
3590 if char == ':' {
3591 found_colon = true;
3592 } else {
3593 chars.push(char);
3594 }
3595 }
3596 // Found a possible emoji shortcode at the beginning of the buffer
3597 chars.reverse();
3598 Some(chars.iter().collect())
3599 }
3600
3601 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3602 self.transact(cx, |this, cx| {
3603 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3604 let selections = this.selections.all::<usize>(cx);
3605 let multi_buffer = this.buffer.read(cx);
3606 let buffer = multi_buffer.snapshot(cx);
3607 selections
3608 .iter()
3609 .map(|selection| {
3610 let start_point = selection.start.to_point(&buffer);
3611 let mut indent =
3612 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3613 indent.len = cmp::min(indent.len, start_point.column);
3614 let start = selection.start;
3615 let end = selection.end;
3616 let selection_is_empty = start == end;
3617 let language_scope = buffer.language_scope_at(start);
3618 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3619 &language_scope
3620 {
3621 let leading_whitespace_len = buffer
3622 .reversed_chars_at(start)
3623 .take_while(|c| c.is_whitespace() && *c != '\n')
3624 .map(|c| c.len_utf8())
3625 .sum::<usize>();
3626
3627 let trailing_whitespace_len = buffer
3628 .chars_at(end)
3629 .take_while(|c| c.is_whitespace() && *c != '\n')
3630 .map(|c| c.len_utf8())
3631 .sum::<usize>();
3632
3633 let insert_extra_newline =
3634 language.brackets().any(|(pair, enabled)| {
3635 let pair_start = pair.start.trim_end();
3636 let pair_end = pair.end.trim_start();
3637
3638 enabled
3639 && pair.newline
3640 && buffer.contains_str_at(
3641 end + trailing_whitespace_len,
3642 pair_end,
3643 )
3644 && buffer.contains_str_at(
3645 (start - leading_whitespace_len)
3646 .saturating_sub(pair_start.len()),
3647 pair_start,
3648 )
3649 });
3650
3651 // Comment extension on newline is allowed only for cursor selections
3652 let comment_delimiter = maybe!({
3653 if !selection_is_empty {
3654 return None;
3655 }
3656
3657 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3658 return None;
3659 }
3660
3661 let delimiters = language.line_comment_prefixes();
3662 let max_len_of_delimiter =
3663 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3664 let (snapshot, range) =
3665 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3666
3667 let mut index_of_first_non_whitespace = 0;
3668 let comment_candidate = snapshot
3669 .chars_for_range(range)
3670 .skip_while(|c| {
3671 let should_skip = c.is_whitespace();
3672 if should_skip {
3673 index_of_first_non_whitespace += 1;
3674 }
3675 should_skip
3676 })
3677 .take(max_len_of_delimiter)
3678 .collect::<String>();
3679 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3680 comment_candidate.starts_with(comment_prefix.as_ref())
3681 })?;
3682 let cursor_is_placed_after_comment_marker =
3683 index_of_first_non_whitespace + comment_prefix.len()
3684 <= start_point.column as usize;
3685 if cursor_is_placed_after_comment_marker {
3686 Some(comment_prefix.clone())
3687 } else {
3688 None
3689 }
3690 });
3691 (comment_delimiter, insert_extra_newline)
3692 } else {
3693 (None, false)
3694 };
3695
3696 let capacity_for_delimiter = comment_delimiter
3697 .as_deref()
3698 .map(str::len)
3699 .unwrap_or_default();
3700 let mut new_text =
3701 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3702 new_text.push('\n');
3703 new_text.extend(indent.chars());
3704 if let Some(delimiter) = &comment_delimiter {
3705 new_text.push_str(delimiter);
3706 }
3707 if insert_extra_newline {
3708 new_text = new_text.repeat(2);
3709 }
3710
3711 let anchor = buffer.anchor_after(end);
3712 let new_selection = selection.map(|_| anchor);
3713 (
3714 (start..end, new_text),
3715 (insert_extra_newline, new_selection),
3716 )
3717 })
3718 .unzip()
3719 };
3720
3721 this.edit_with_autoindent(edits, cx);
3722 let buffer = this.buffer.read(cx).snapshot(cx);
3723 let new_selections = selection_fixup_info
3724 .into_iter()
3725 .map(|(extra_newline_inserted, new_selection)| {
3726 let mut cursor = new_selection.end.to_point(&buffer);
3727 if extra_newline_inserted {
3728 cursor.row -= 1;
3729 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3730 }
3731 new_selection.map(|_| cursor)
3732 })
3733 .collect();
3734
3735 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3736 this.refresh_inline_completion(true, false, cx);
3737 });
3738 }
3739
3740 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3741 let buffer = self.buffer.read(cx);
3742 let snapshot = buffer.snapshot(cx);
3743
3744 let mut edits = Vec::new();
3745 let mut rows = Vec::new();
3746
3747 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3748 let cursor = selection.head();
3749 let row = cursor.row;
3750
3751 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3752
3753 let newline = "\n".to_string();
3754 edits.push((start_of_line..start_of_line, newline));
3755
3756 rows.push(row + rows_inserted as u32);
3757 }
3758
3759 self.transact(cx, |editor, cx| {
3760 editor.edit(edits, cx);
3761
3762 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3763 let mut index = 0;
3764 s.move_cursors_with(|map, _, _| {
3765 let row = rows[index];
3766 index += 1;
3767
3768 let point = Point::new(row, 0);
3769 let boundary = map.next_line_boundary(point).1;
3770 let clipped = map.clip_point(boundary, Bias::Left);
3771
3772 (clipped, SelectionGoal::None)
3773 });
3774 });
3775
3776 let mut indent_edits = Vec::new();
3777 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3778 for row in rows {
3779 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3780 for (row, indent) in indents {
3781 if indent.len == 0 {
3782 continue;
3783 }
3784
3785 let text = match indent.kind {
3786 IndentKind::Space => " ".repeat(indent.len as usize),
3787 IndentKind::Tab => "\t".repeat(indent.len as usize),
3788 };
3789 let point = Point::new(row.0, 0);
3790 indent_edits.push((point..point, text));
3791 }
3792 }
3793 editor.edit(indent_edits, cx);
3794 });
3795 }
3796
3797 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3798 let buffer = self.buffer.read(cx);
3799 let snapshot = buffer.snapshot(cx);
3800
3801 let mut edits = Vec::new();
3802 let mut rows = Vec::new();
3803 let mut rows_inserted = 0;
3804
3805 for selection in self.selections.all_adjusted(cx) {
3806 let cursor = selection.head();
3807 let row = cursor.row;
3808
3809 let point = Point::new(row + 1, 0);
3810 let start_of_line = snapshot.clip_point(point, Bias::Left);
3811
3812 let newline = "\n".to_string();
3813 edits.push((start_of_line..start_of_line, newline));
3814
3815 rows_inserted += 1;
3816 rows.push(row + rows_inserted);
3817 }
3818
3819 self.transact(cx, |editor, cx| {
3820 editor.edit(edits, cx);
3821
3822 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3823 let mut index = 0;
3824 s.move_cursors_with(|map, _, _| {
3825 let row = rows[index];
3826 index += 1;
3827
3828 let point = Point::new(row, 0);
3829 let boundary = map.next_line_boundary(point).1;
3830 let clipped = map.clip_point(boundary, Bias::Left);
3831
3832 (clipped, SelectionGoal::None)
3833 });
3834 });
3835
3836 let mut indent_edits = Vec::new();
3837 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3838 for row in rows {
3839 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3840 for (row, indent) in indents {
3841 if indent.len == 0 {
3842 continue;
3843 }
3844
3845 let text = match indent.kind {
3846 IndentKind::Space => " ".repeat(indent.len as usize),
3847 IndentKind::Tab => "\t".repeat(indent.len as usize),
3848 };
3849 let point = Point::new(row.0, 0);
3850 indent_edits.push((point..point, text));
3851 }
3852 }
3853 editor.edit(indent_edits, cx);
3854 });
3855 }
3856
3857 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3858 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3859 original_indent_columns: Vec::new(),
3860 });
3861 self.insert_with_autoindent_mode(text, autoindent, cx);
3862 }
3863
3864 fn insert_with_autoindent_mode(
3865 &mut self,
3866 text: &str,
3867 autoindent_mode: Option<AutoindentMode>,
3868 cx: &mut ViewContext<Self>,
3869 ) {
3870 if self.read_only(cx) {
3871 return;
3872 }
3873
3874 let text: Arc<str> = text.into();
3875 self.transact(cx, |this, cx| {
3876 let old_selections = this.selections.all_adjusted(cx);
3877 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3878 let anchors = {
3879 let snapshot = buffer.read(cx);
3880 old_selections
3881 .iter()
3882 .map(|s| {
3883 let anchor = snapshot.anchor_after(s.head());
3884 s.map(|_| anchor)
3885 })
3886 .collect::<Vec<_>>()
3887 };
3888 buffer.edit(
3889 old_selections
3890 .iter()
3891 .map(|s| (s.start..s.end, text.clone())),
3892 autoindent_mode,
3893 cx,
3894 );
3895 anchors
3896 });
3897
3898 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3899 s.select_anchors(selection_anchors);
3900 })
3901 });
3902 }
3903
3904 fn trigger_completion_on_input(
3905 &mut self,
3906 text: &str,
3907 trigger_in_words: bool,
3908 cx: &mut ViewContext<Self>,
3909 ) {
3910 if self.is_completion_trigger(text, trigger_in_words, cx) {
3911 self.show_completions(
3912 &ShowCompletions {
3913 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3914 },
3915 cx,
3916 );
3917 } else {
3918 self.hide_context_menu(cx);
3919 }
3920 }
3921
3922 fn is_completion_trigger(
3923 &self,
3924 text: &str,
3925 trigger_in_words: bool,
3926 cx: &mut ViewContext<Self>,
3927 ) -> bool {
3928 let position = self.selections.newest_anchor().head();
3929 let multibuffer = self.buffer.read(cx);
3930 let Some(buffer) = position
3931 .buffer_id
3932 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3933 else {
3934 return false;
3935 };
3936
3937 if let Some(completion_provider) = &self.completion_provider {
3938 completion_provider.is_completion_trigger(
3939 &buffer,
3940 position.text_anchor,
3941 text,
3942 trigger_in_words,
3943 cx,
3944 )
3945 } else {
3946 false
3947 }
3948 }
3949
3950 /// If any empty selections is touching the start of its innermost containing autoclose
3951 /// region, expand it to select the brackets.
3952 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3953 let selections = self.selections.all::<usize>(cx);
3954 let buffer = self.buffer.read(cx).read(cx);
3955 let new_selections = self
3956 .selections_with_autoclose_regions(selections, &buffer)
3957 .map(|(mut selection, region)| {
3958 if !selection.is_empty() {
3959 return selection;
3960 }
3961
3962 if let Some(region) = region {
3963 let mut range = region.range.to_offset(&buffer);
3964 if selection.start == range.start && range.start >= region.pair.start.len() {
3965 range.start -= region.pair.start.len();
3966 if buffer.contains_str_at(range.start, ®ion.pair.start)
3967 && buffer.contains_str_at(range.end, ®ion.pair.end)
3968 {
3969 range.end += region.pair.end.len();
3970 selection.start = range.start;
3971 selection.end = range.end;
3972
3973 return selection;
3974 }
3975 }
3976 }
3977
3978 let always_treat_brackets_as_autoclosed = buffer
3979 .settings_at(selection.start, cx)
3980 .always_treat_brackets_as_autoclosed;
3981
3982 if !always_treat_brackets_as_autoclosed {
3983 return selection;
3984 }
3985
3986 if let Some(scope) = buffer.language_scope_at(selection.start) {
3987 for (pair, enabled) in scope.brackets() {
3988 if !enabled || !pair.close {
3989 continue;
3990 }
3991
3992 if buffer.contains_str_at(selection.start, &pair.end) {
3993 let pair_start_len = pair.start.len();
3994 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3995 {
3996 selection.start -= pair_start_len;
3997 selection.end += pair.end.len();
3998
3999 return selection;
4000 }
4001 }
4002 }
4003 }
4004
4005 selection
4006 })
4007 .collect();
4008
4009 drop(buffer);
4010 self.change_selections(None, cx, |selections| selections.select(new_selections));
4011 }
4012
4013 /// Iterate the given selections, and for each one, find the smallest surrounding
4014 /// autoclose region. This uses the ordering of the selections and the autoclose
4015 /// regions to avoid repeated comparisons.
4016 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4017 &'a self,
4018 selections: impl IntoIterator<Item = Selection<D>>,
4019 buffer: &'a MultiBufferSnapshot,
4020 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4021 let mut i = 0;
4022 let mut regions = self.autoclose_regions.as_slice();
4023 selections.into_iter().map(move |selection| {
4024 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4025
4026 let mut enclosing = None;
4027 while let Some(pair_state) = regions.get(i) {
4028 if pair_state.range.end.to_offset(buffer) < range.start {
4029 regions = ®ions[i + 1..];
4030 i = 0;
4031 } else if pair_state.range.start.to_offset(buffer) > range.end {
4032 break;
4033 } else {
4034 if pair_state.selection_id == selection.id {
4035 enclosing = Some(pair_state);
4036 }
4037 i += 1;
4038 }
4039 }
4040
4041 (selection.clone(), enclosing)
4042 })
4043 }
4044
4045 /// Remove any autoclose regions that no longer contain their selection.
4046 fn invalidate_autoclose_regions(
4047 &mut self,
4048 mut selections: &[Selection<Anchor>],
4049 buffer: &MultiBufferSnapshot,
4050 ) {
4051 self.autoclose_regions.retain(|state| {
4052 let mut i = 0;
4053 while let Some(selection) = selections.get(i) {
4054 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4055 selections = &selections[1..];
4056 continue;
4057 }
4058 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4059 break;
4060 }
4061 if selection.id == state.selection_id {
4062 return true;
4063 } else {
4064 i += 1;
4065 }
4066 }
4067 false
4068 });
4069 }
4070
4071 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4072 let offset = position.to_offset(buffer);
4073 let (word_range, kind) = buffer.surrounding_word(offset, true);
4074 if offset > word_range.start && kind == Some(CharKind::Word) {
4075 Some(
4076 buffer
4077 .text_for_range(word_range.start..offset)
4078 .collect::<String>(),
4079 )
4080 } else {
4081 None
4082 }
4083 }
4084
4085 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4086 self.refresh_inlay_hints(
4087 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4088 cx,
4089 );
4090 }
4091
4092 pub fn inlay_hints_enabled(&self) -> bool {
4093 self.inlay_hint_cache.enabled
4094 }
4095
4096 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4097 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4098 return;
4099 }
4100
4101 let reason_description = reason.description();
4102 let ignore_debounce = matches!(
4103 reason,
4104 InlayHintRefreshReason::SettingsChange(_)
4105 | InlayHintRefreshReason::Toggle(_)
4106 | InlayHintRefreshReason::ExcerptsRemoved(_)
4107 );
4108 let (invalidate_cache, required_languages) = match reason {
4109 InlayHintRefreshReason::Toggle(enabled) => {
4110 self.inlay_hint_cache.enabled = enabled;
4111 if enabled {
4112 (InvalidationStrategy::RefreshRequested, None)
4113 } else {
4114 self.inlay_hint_cache.clear();
4115 self.splice_inlays(
4116 self.visible_inlay_hints(cx)
4117 .iter()
4118 .map(|inlay| inlay.id)
4119 .collect(),
4120 Vec::new(),
4121 cx,
4122 );
4123 return;
4124 }
4125 }
4126 InlayHintRefreshReason::SettingsChange(new_settings) => {
4127 match self.inlay_hint_cache.update_settings(
4128 &self.buffer,
4129 new_settings,
4130 self.visible_inlay_hints(cx),
4131 cx,
4132 ) {
4133 ControlFlow::Break(Some(InlaySplice {
4134 to_remove,
4135 to_insert,
4136 })) => {
4137 self.splice_inlays(to_remove, to_insert, cx);
4138 return;
4139 }
4140 ControlFlow::Break(None) => return,
4141 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4142 }
4143 }
4144 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4145 if let Some(InlaySplice {
4146 to_remove,
4147 to_insert,
4148 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4149 {
4150 self.splice_inlays(to_remove, to_insert, cx);
4151 }
4152 return;
4153 }
4154 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4155 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4156 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4157 }
4158 InlayHintRefreshReason::RefreshRequested => {
4159 (InvalidationStrategy::RefreshRequested, None)
4160 }
4161 };
4162
4163 if let Some(InlaySplice {
4164 to_remove,
4165 to_insert,
4166 }) = self.inlay_hint_cache.spawn_hint_refresh(
4167 reason_description,
4168 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4169 invalidate_cache,
4170 ignore_debounce,
4171 cx,
4172 ) {
4173 self.splice_inlays(to_remove, to_insert, cx);
4174 }
4175 }
4176
4177 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4178 self.display_map
4179 .read(cx)
4180 .current_inlays()
4181 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4182 .cloned()
4183 .collect()
4184 }
4185
4186 pub fn excerpts_for_inlay_hints_query(
4187 &self,
4188 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4189 cx: &mut ViewContext<Editor>,
4190 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4191 let Some(project) = self.project.as_ref() else {
4192 return HashMap::default();
4193 };
4194 let project = project.read(cx);
4195 let multi_buffer = self.buffer().read(cx);
4196 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4197 let multi_buffer_visible_start = self
4198 .scroll_manager
4199 .anchor()
4200 .anchor
4201 .to_point(&multi_buffer_snapshot);
4202 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4203 multi_buffer_visible_start
4204 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4205 Bias::Left,
4206 );
4207 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4208 multi_buffer
4209 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4210 .into_iter()
4211 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4212 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4213 let buffer = buffer_handle.read(cx);
4214 let buffer_file = project::File::from_dyn(buffer.file())?;
4215 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4216 let worktree_entry = buffer_worktree
4217 .read(cx)
4218 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4219 if worktree_entry.is_ignored {
4220 return None;
4221 }
4222
4223 let language = buffer.language()?;
4224 if let Some(restrict_to_languages) = restrict_to_languages {
4225 if !restrict_to_languages.contains(language) {
4226 return None;
4227 }
4228 }
4229 Some((
4230 excerpt_id,
4231 (
4232 buffer_handle,
4233 buffer.version().clone(),
4234 excerpt_visible_range,
4235 ),
4236 ))
4237 })
4238 .collect()
4239 }
4240
4241 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4242 TextLayoutDetails {
4243 text_system: cx.text_system().clone(),
4244 editor_style: self.style.clone().unwrap(),
4245 rem_size: cx.rem_size(),
4246 scroll_anchor: self.scroll_manager.anchor(),
4247 visible_rows: self.visible_line_count(),
4248 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4249 }
4250 }
4251
4252 fn splice_inlays(
4253 &self,
4254 to_remove: Vec<InlayId>,
4255 to_insert: Vec<Inlay>,
4256 cx: &mut ViewContext<Self>,
4257 ) {
4258 self.display_map.update(cx, |display_map, cx| {
4259 display_map.splice_inlays(to_remove, to_insert, cx);
4260 });
4261 cx.notify();
4262 }
4263
4264 fn trigger_on_type_formatting(
4265 &self,
4266 input: String,
4267 cx: &mut ViewContext<Self>,
4268 ) -> Option<Task<Result<()>>> {
4269 if input.len() != 1 {
4270 return None;
4271 }
4272
4273 let project = self.project.as_ref()?;
4274 let position = self.selections.newest_anchor().head();
4275 let (buffer, buffer_position) = self
4276 .buffer
4277 .read(cx)
4278 .text_anchor_for_position(position, cx)?;
4279
4280 let settings = language_settings::language_settings(
4281 buffer
4282 .read(cx)
4283 .language_at(buffer_position)
4284 .map(|l| l.name()),
4285 buffer.read(cx).file(),
4286 cx,
4287 );
4288 if !settings.use_on_type_format {
4289 return None;
4290 }
4291
4292 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4293 // hence we do LSP request & edit on host side only — add formats to host's history.
4294 let push_to_lsp_host_history = true;
4295 // If this is not the host, append its history with new edits.
4296 let push_to_client_history = project.read(cx).is_via_collab();
4297
4298 let on_type_formatting = project.update(cx, |project, cx| {
4299 project.on_type_format(
4300 buffer.clone(),
4301 buffer_position,
4302 input,
4303 push_to_lsp_host_history,
4304 cx,
4305 )
4306 });
4307 Some(cx.spawn(|editor, mut cx| async move {
4308 if let Some(transaction) = on_type_formatting.await? {
4309 if push_to_client_history {
4310 buffer
4311 .update(&mut cx, |buffer, _| {
4312 buffer.push_transaction(transaction, Instant::now());
4313 })
4314 .ok();
4315 }
4316 editor.update(&mut cx, |editor, cx| {
4317 editor.refresh_document_highlights(cx);
4318 })?;
4319 }
4320 Ok(())
4321 }))
4322 }
4323
4324 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4325 if self.pending_rename.is_some() {
4326 return;
4327 }
4328
4329 let Some(provider) = self.completion_provider.as_ref() else {
4330 return;
4331 };
4332
4333 let position = self.selections.newest_anchor().head();
4334 let (buffer, buffer_position) =
4335 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4336 output
4337 } else {
4338 return;
4339 };
4340
4341 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4342 let is_followup_invoke = {
4343 let context_menu_state = self.context_menu.read();
4344 matches!(
4345 context_menu_state.deref(),
4346 Some(ContextMenu::Completions(_))
4347 )
4348 };
4349 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4350 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4351 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4352 CompletionTriggerKind::TRIGGER_CHARACTER
4353 }
4354
4355 _ => CompletionTriggerKind::INVOKED,
4356 };
4357 let completion_context = CompletionContext {
4358 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4359 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4360 Some(String::from(trigger))
4361 } else {
4362 None
4363 }
4364 }),
4365 trigger_kind,
4366 };
4367 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4368 let sort_completions = provider.sort_completions();
4369
4370 let id = post_inc(&mut self.next_completion_id);
4371 let task = cx.spawn(|this, mut cx| {
4372 async move {
4373 this.update(&mut cx, |this, _| {
4374 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4375 })?;
4376 let completions = completions.await.log_err();
4377 let menu = if let Some(completions) = completions {
4378 let mut menu = CompletionsMenu {
4379 id,
4380 sort_completions,
4381 initial_position: position,
4382 match_candidates: completions
4383 .iter()
4384 .enumerate()
4385 .map(|(id, completion)| {
4386 StringMatchCandidate::new(
4387 id,
4388 completion.label.text[completion.label.filter_range.clone()]
4389 .into(),
4390 )
4391 })
4392 .collect(),
4393 buffer: buffer.clone(),
4394 completions: Arc::new(RwLock::new(completions.into())),
4395 matches: Vec::new().into(),
4396 selected_item: 0,
4397 scroll_handle: UniformListScrollHandle::new(),
4398 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4399 DebouncedDelay::new(),
4400 )),
4401 };
4402 menu.filter(query.as_deref(), cx.background_executor().clone())
4403 .await;
4404
4405 if menu.matches.is_empty() {
4406 None
4407 } else {
4408 this.update(&mut cx, |editor, cx| {
4409 let completions = menu.completions.clone();
4410 let matches = menu.matches.clone();
4411
4412 let delay_ms = EditorSettings::get_global(cx)
4413 .completion_documentation_secondary_query_debounce;
4414 let delay = Duration::from_millis(delay_ms);
4415 editor
4416 .completion_documentation_pre_resolve_debounce
4417 .fire_new(delay, cx, |editor, cx| {
4418 CompletionsMenu::pre_resolve_completion_documentation(
4419 buffer,
4420 completions,
4421 matches,
4422 editor,
4423 cx,
4424 )
4425 });
4426 })
4427 .ok();
4428 Some(menu)
4429 }
4430 } else {
4431 None
4432 };
4433
4434 this.update(&mut cx, |this, cx| {
4435 let mut context_menu = this.context_menu.write();
4436 match context_menu.as_ref() {
4437 None => {}
4438
4439 Some(ContextMenu::Completions(prev_menu)) => {
4440 if prev_menu.id > id {
4441 return;
4442 }
4443 }
4444
4445 _ => return,
4446 }
4447
4448 if this.focus_handle.is_focused(cx) && menu.is_some() {
4449 let menu = menu.unwrap();
4450 *context_menu = Some(ContextMenu::Completions(menu));
4451 drop(context_menu);
4452 this.discard_inline_completion(false, cx);
4453 cx.notify();
4454 } else if this.completion_tasks.len() <= 1 {
4455 // If there are no more completion tasks and the last menu was
4456 // empty, we should hide it. If it was already hidden, we should
4457 // also show the copilot completion when available.
4458 drop(context_menu);
4459 if this.hide_context_menu(cx).is_none() {
4460 this.update_visible_inline_completion(cx);
4461 }
4462 }
4463 })?;
4464
4465 Ok::<_, anyhow::Error>(())
4466 }
4467 .log_err()
4468 });
4469
4470 self.completion_tasks.push((id, task));
4471 }
4472
4473 pub fn confirm_completion(
4474 &mut self,
4475 action: &ConfirmCompletion,
4476 cx: &mut ViewContext<Self>,
4477 ) -> Option<Task<Result<()>>> {
4478 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4479 }
4480
4481 pub fn compose_completion(
4482 &mut self,
4483 action: &ComposeCompletion,
4484 cx: &mut ViewContext<Self>,
4485 ) -> Option<Task<Result<()>>> {
4486 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4487 }
4488
4489 fn do_completion(
4490 &mut self,
4491 item_ix: Option<usize>,
4492 intent: CompletionIntent,
4493 cx: &mut ViewContext<Editor>,
4494 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4495 use language::ToOffset as _;
4496
4497 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4498 menu
4499 } else {
4500 return None;
4501 };
4502
4503 let mat = completions_menu
4504 .matches
4505 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4506 let buffer_handle = completions_menu.buffer;
4507 let completions = completions_menu.completions.read();
4508 let completion = completions.get(mat.candidate_id)?;
4509 cx.stop_propagation();
4510
4511 let snippet;
4512 let text;
4513
4514 if completion.is_snippet() {
4515 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4516 text = snippet.as_ref().unwrap().text.clone();
4517 } else {
4518 snippet = None;
4519 text = completion.new_text.clone();
4520 };
4521 let selections = self.selections.all::<usize>(cx);
4522 let buffer = buffer_handle.read(cx);
4523 let old_range = completion.old_range.to_offset(buffer);
4524 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4525
4526 let newest_selection = self.selections.newest_anchor();
4527 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4528 return None;
4529 }
4530
4531 let lookbehind = newest_selection
4532 .start
4533 .text_anchor
4534 .to_offset(buffer)
4535 .saturating_sub(old_range.start);
4536 let lookahead = old_range
4537 .end
4538 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4539 let mut common_prefix_len = old_text
4540 .bytes()
4541 .zip(text.bytes())
4542 .take_while(|(a, b)| a == b)
4543 .count();
4544
4545 let snapshot = self.buffer.read(cx).snapshot(cx);
4546 let mut range_to_replace: Option<Range<isize>> = None;
4547 let mut ranges = Vec::new();
4548 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4549 for selection in &selections {
4550 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4551 let start = selection.start.saturating_sub(lookbehind);
4552 let end = selection.end + lookahead;
4553 if selection.id == newest_selection.id {
4554 range_to_replace = Some(
4555 ((start + common_prefix_len) as isize - selection.start as isize)
4556 ..(end as isize - selection.start as isize),
4557 );
4558 }
4559 ranges.push(start + common_prefix_len..end);
4560 } else {
4561 common_prefix_len = 0;
4562 ranges.clear();
4563 ranges.extend(selections.iter().map(|s| {
4564 if s.id == newest_selection.id {
4565 range_to_replace = Some(
4566 old_range.start.to_offset_utf16(&snapshot).0 as isize
4567 - selection.start as isize
4568 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4569 - selection.start as isize,
4570 );
4571 old_range.clone()
4572 } else {
4573 s.start..s.end
4574 }
4575 }));
4576 break;
4577 }
4578 if !self.linked_edit_ranges.is_empty() {
4579 let start_anchor = snapshot.anchor_before(selection.head());
4580 let end_anchor = snapshot.anchor_after(selection.tail());
4581 if let Some(ranges) = self
4582 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4583 {
4584 for (buffer, edits) in ranges {
4585 linked_edits.entry(buffer.clone()).or_default().extend(
4586 edits
4587 .into_iter()
4588 .map(|range| (range, text[common_prefix_len..].to_owned())),
4589 );
4590 }
4591 }
4592 }
4593 }
4594 let text = &text[common_prefix_len..];
4595
4596 cx.emit(EditorEvent::InputHandled {
4597 utf16_range_to_replace: range_to_replace,
4598 text: text.into(),
4599 });
4600
4601 self.transact(cx, |this, cx| {
4602 if let Some(mut snippet) = snippet {
4603 snippet.text = text.to_string();
4604 for tabstop in snippet.tabstops.iter_mut().flatten() {
4605 tabstop.start -= common_prefix_len as isize;
4606 tabstop.end -= common_prefix_len as isize;
4607 }
4608
4609 this.insert_snippet(&ranges, snippet, cx).log_err();
4610 } else {
4611 this.buffer.update(cx, |buffer, cx| {
4612 buffer.edit(
4613 ranges.iter().map(|range| (range.clone(), text)),
4614 this.autoindent_mode.clone(),
4615 cx,
4616 );
4617 });
4618 }
4619 for (buffer, edits) in linked_edits {
4620 buffer.update(cx, |buffer, cx| {
4621 let snapshot = buffer.snapshot();
4622 let edits = edits
4623 .into_iter()
4624 .map(|(range, text)| {
4625 use text::ToPoint as TP;
4626 let end_point = TP::to_point(&range.end, &snapshot);
4627 let start_point = TP::to_point(&range.start, &snapshot);
4628 (start_point..end_point, text)
4629 })
4630 .sorted_by_key(|(range, _)| range.start)
4631 .collect::<Vec<_>>();
4632 buffer.edit(edits, None, cx);
4633 })
4634 }
4635
4636 this.refresh_inline_completion(true, false, cx);
4637 });
4638
4639 let show_new_completions_on_confirm = completion
4640 .confirm
4641 .as_ref()
4642 .map_or(false, |confirm| confirm(intent, cx));
4643 if show_new_completions_on_confirm {
4644 self.show_completions(&ShowCompletions { trigger: None }, cx);
4645 }
4646
4647 let provider = self.completion_provider.as_ref()?;
4648 let apply_edits = provider.apply_additional_edits_for_completion(
4649 buffer_handle,
4650 completion.clone(),
4651 true,
4652 cx,
4653 );
4654
4655 let editor_settings = EditorSettings::get_global(cx);
4656 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4657 // After the code completion is finished, users often want to know what signatures are needed.
4658 // so we should automatically call signature_help
4659 self.show_signature_help(&ShowSignatureHelp, cx);
4660 }
4661
4662 Some(cx.foreground_executor().spawn(async move {
4663 apply_edits.await?;
4664 Ok(())
4665 }))
4666 }
4667
4668 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4669 let mut context_menu = self.context_menu.write();
4670 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4671 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4672 // Toggle if we're selecting the same one
4673 *context_menu = None;
4674 cx.notify();
4675 return;
4676 } else {
4677 // Otherwise, clear it and start a new one
4678 *context_menu = None;
4679 cx.notify();
4680 }
4681 }
4682 drop(context_menu);
4683 let snapshot = self.snapshot(cx);
4684 let deployed_from_indicator = action.deployed_from_indicator;
4685 let mut task = self.code_actions_task.take();
4686 let action = action.clone();
4687 cx.spawn(|editor, mut cx| async move {
4688 while let Some(prev_task) = task {
4689 prev_task.await.log_err();
4690 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4691 }
4692
4693 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4694 if editor.focus_handle.is_focused(cx) {
4695 let multibuffer_point = action
4696 .deployed_from_indicator
4697 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4698 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4699 let (buffer, buffer_row) = snapshot
4700 .buffer_snapshot
4701 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4702 .and_then(|(buffer_snapshot, range)| {
4703 editor
4704 .buffer
4705 .read(cx)
4706 .buffer(buffer_snapshot.remote_id())
4707 .map(|buffer| (buffer, range.start.row))
4708 })?;
4709 let (_, code_actions) = editor
4710 .available_code_actions
4711 .clone()
4712 .and_then(|(location, code_actions)| {
4713 let snapshot = location.buffer.read(cx).snapshot();
4714 let point_range = location.range.to_point(&snapshot);
4715 let point_range = point_range.start.row..=point_range.end.row;
4716 if point_range.contains(&buffer_row) {
4717 Some((location, code_actions))
4718 } else {
4719 None
4720 }
4721 })
4722 .unzip();
4723 let buffer_id = buffer.read(cx).remote_id();
4724 let tasks = editor
4725 .tasks
4726 .get(&(buffer_id, buffer_row))
4727 .map(|t| Arc::new(t.to_owned()));
4728 if tasks.is_none() && code_actions.is_none() {
4729 return None;
4730 }
4731
4732 editor.completion_tasks.clear();
4733 editor.discard_inline_completion(false, cx);
4734 let task_context =
4735 tasks
4736 .as_ref()
4737 .zip(editor.project.clone())
4738 .map(|(tasks, project)| {
4739 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4740 });
4741
4742 Some(cx.spawn(|editor, mut cx| async move {
4743 let task_context = match task_context {
4744 Some(task_context) => task_context.await,
4745 None => None,
4746 };
4747 let resolved_tasks =
4748 tasks.zip(task_context).map(|(tasks, task_context)| {
4749 Arc::new(ResolvedTasks {
4750 templates: tasks.resolve(&task_context).collect(),
4751 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4752 multibuffer_point.row,
4753 tasks.column,
4754 )),
4755 })
4756 });
4757 let spawn_straight_away = resolved_tasks
4758 .as_ref()
4759 .map_or(false, |tasks| tasks.templates.len() == 1)
4760 && code_actions
4761 .as_ref()
4762 .map_or(true, |actions| actions.is_empty());
4763 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4764 *editor.context_menu.write() =
4765 Some(ContextMenu::CodeActions(CodeActionsMenu {
4766 buffer,
4767 actions: CodeActionContents {
4768 tasks: resolved_tasks,
4769 actions: code_actions,
4770 },
4771 selected_item: Default::default(),
4772 scroll_handle: UniformListScrollHandle::default(),
4773 deployed_from_indicator,
4774 }));
4775 if spawn_straight_away {
4776 if let Some(task) = editor.confirm_code_action(
4777 &ConfirmCodeAction { item_ix: Some(0) },
4778 cx,
4779 ) {
4780 cx.notify();
4781 return task;
4782 }
4783 }
4784 cx.notify();
4785 Task::ready(Ok(()))
4786 }) {
4787 task.await
4788 } else {
4789 Ok(())
4790 }
4791 }))
4792 } else {
4793 Some(Task::ready(Ok(())))
4794 }
4795 })?;
4796 if let Some(task) = spawned_test_task {
4797 task.await?;
4798 }
4799
4800 Ok::<_, anyhow::Error>(())
4801 })
4802 .detach_and_log_err(cx);
4803 }
4804
4805 pub fn confirm_code_action(
4806 &mut self,
4807 action: &ConfirmCodeAction,
4808 cx: &mut ViewContext<Self>,
4809 ) -> Option<Task<Result<()>>> {
4810 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4811 menu
4812 } else {
4813 return None;
4814 };
4815 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4816 let action = actions_menu.actions.get(action_ix)?;
4817 let title = action.label();
4818 let buffer = actions_menu.buffer;
4819 let workspace = self.workspace()?;
4820
4821 match action {
4822 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4823 workspace.update(cx, |workspace, cx| {
4824 workspace::tasks::schedule_resolved_task(
4825 workspace,
4826 task_source_kind,
4827 resolved_task,
4828 false,
4829 cx,
4830 );
4831
4832 Some(Task::ready(Ok(())))
4833 })
4834 }
4835 CodeActionsItem::CodeAction {
4836 excerpt_id,
4837 action,
4838 provider,
4839 } => {
4840 let apply_code_action =
4841 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4842 let workspace = workspace.downgrade();
4843 Some(cx.spawn(|editor, cx| async move {
4844 let project_transaction = apply_code_action.await?;
4845 Self::open_project_transaction(
4846 &editor,
4847 workspace,
4848 project_transaction,
4849 title,
4850 cx,
4851 )
4852 .await
4853 }))
4854 }
4855 }
4856 }
4857
4858 pub async fn open_project_transaction(
4859 this: &WeakView<Editor>,
4860 workspace: WeakView<Workspace>,
4861 transaction: ProjectTransaction,
4862 title: String,
4863 mut cx: AsyncWindowContext,
4864 ) -> Result<()> {
4865 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4866 cx.update(|cx| {
4867 entries.sort_unstable_by_key(|(buffer, _)| {
4868 buffer.read(cx).file().map(|f| f.path().clone())
4869 });
4870 })?;
4871
4872 // If the project transaction's edits are all contained within this editor, then
4873 // avoid opening a new editor to display them.
4874
4875 if let Some((buffer, transaction)) = entries.first() {
4876 if entries.len() == 1 {
4877 let excerpt = this.update(&mut cx, |editor, cx| {
4878 editor
4879 .buffer()
4880 .read(cx)
4881 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4882 })?;
4883 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4884 if excerpted_buffer == *buffer {
4885 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4886 let excerpt_range = excerpt_range.to_offset(buffer);
4887 buffer
4888 .edited_ranges_for_transaction::<usize>(transaction)
4889 .all(|range| {
4890 excerpt_range.start <= range.start
4891 && excerpt_range.end >= range.end
4892 })
4893 })?;
4894
4895 if all_edits_within_excerpt {
4896 return Ok(());
4897 }
4898 }
4899 }
4900 }
4901 } else {
4902 return Ok(());
4903 }
4904
4905 let mut ranges_to_highlight = Vec::new();
4906 let excerpt_buffer = cx.new_model(|cx| {
4907 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4908 for (buffer_handle, transaction) in &entries {
4909 let buffer = buffer_handle.read(cx);
4910 ranges_to_highlight.extend(
4911 multibuffer.push_excerpts_with_context_lines(
4912 buffer_handle.clone(),
4913 buffer
4914 .edited_ranges_for_transaction::<usize>(transaction)
4915 .collect(),
4916 DEFAULT_MULTIBUFFER_CONTEXT,
4917 cx,
4918 ),
4919 );
4920 }
4921 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4922 multibuffer
4923 })?;
4924
4925 workspace.update(&mut cx, |workspace, cx| {
4926 let project = workspace.project().clone();
4927 let editor =
4928 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4929 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4930 editor.update(cx, |editor, cx| {
4931 editor.highlight_background::<Self>(
4932 &ranges_to_highlight,
4933 |theme| theme.editor_highlighted_line_background,
4934 cx,
4935 );
4936 });
4937 })?;
4938
4939 Ok(())
4940 }
4941
4942 pub fn clear_code_action_providers(&mut self) {
4943 self.code_action_providers.clear();
4944 self.available_code_actions.take();
4945 }
4946
4947 pub fn push_code_action_provider(
4948 &mut self,
4949 provider: Arc<dyn CodeActionProvider>,
4950 cx: &mut ViewContext<Self>,
4951 ) {
4952 self.code_action_providers.push(provider);
4953 self.refresh_code_actions(cx);
4954 }
4955
4956 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4957 let buffer = self.buffer.read(cx);
4958 let newest_selection = self.selections.newest_anchor().clone();
4959 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4960 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4961 if start_buffer != end_buffer {
4962 return None;
4963 }
4964
4965 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4966 cx.background_executor()
4967 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4968 .await;
4969
4970 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4971 let providers = this.code_action_providers.clone();
4972 let tasks = this
4973 .code_action_providers
4974 .iter()
4975 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4976 .collect::<Vec<_>>();
4977 (providers, tasks)
4978 })?;
4979
4980 let mut actions = Vec::new();
4981 for (provider, provider_actions) in
4982 providers.into_iter().zip(future::join_all(tasks).await)
4983 {
4984 if let Some(provider_actions) = provider_actions.log_err() {
4985 actions.extend(provider_actions.into_iter().map(|action| {
4986 AvailableCodeAction {
4987 excerpt_id: newest_selection.start.excerpt_id,
4988 action,
4989 provider: provider.clone(),
4990 }
4991 }));
4992 }
4993 }
4994
4995 this.update(&mut cx, |this, cx| {
4996 this.available_code_actions = if actions.is_empty() {
4997 None
4998 } else {
4999 Some((
5000 Location {
5001 buffer: start_buffer,
5002 range: start..end,
5003 },
5004 actions.into(),
5005 ))
5006 };
5007 cx.notify();
5008 })
5009 }));
5010 None
5011 }
5012
5013 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5014 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5015 self.show_git_blame_inline = false;
5016
5017 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5018 cx.background_executor().timer(delay).await;
5019
5020 this.update(&mut cx, |this, cx| {
5021 this.show_git_blame_inline = true;
5022 cx.notify();
5023 })
5024 .log_err();
5025 }));
5026 }
5027 }
5028
5029 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5030 if self.pending_rename.is_some() {
5031 return None;
5032 }
5033
5034 let provider = self.semantics_provider.clone()?;
5035 let buffer = self.buffer.read(cx);
5036 let newest_selection = self.selections.newest_anchor().clone();
5037 let cursor_position = newest_selection.head();
5038 let (cursor_buffer, cursor_buffer_position) =
5039 buffer.text_anchor_for_position(cursor_position, cx)?;
5040 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5041 if cursor_buffer != tail_buffer {
5042 return None;
5043 }
5044
5045 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5046 cx.background_executor()
5047 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5048 .await;
5049
5050 let highlights = if let Some(highlights) = cx
5051 .update(|cx| {
5052 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5053 })
5054 .ok()
5055 .flatten()
5056 {
5057 highlights.await.log_err()
5058 } else {
5059 None
5060 };
5061
5062 if let Some(highlights) = highlights {
5063 this.update(&mut cx, |this, cx| {
5064 if this.pending_rename.is_some() {
5065 return;
5066 }
5067
5068 let buffer_id = cursor_position.buffer_id;
5069 let buffer = this.buffer.read(cx);
5070 if !buffer
5071 .text_anchor_for_position(cursor_position, cx)
5072 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5073 {
5074 return;
5075 }
5076
5077 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5078 let mut write_ranges = Vec::new();
5079 let mut read_ranges = Vec::new();
5080 for highlight in highlights {
5081 for (excerpt_id, excerpt_range) in
5082 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5083 {
5084 let start = highlight
5085 .range
5086 .start
5087 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5088 let end = highlight
5089 .range
5090 .end
5091 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5092 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5093 continue;
5094 }
5095
5096 let range = Anchor {
5097 buffer_id,
5098 excerpt_id,
5099 text_anchor: start,
5100 }..Anchor {
5101 buffer_id,
5102 excerpt_id,
5103 text_anchor: end,
5104 };
5105 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5106 write_ranges.push(range);
5107 } else {
5108 read_ranges.push(range);
5109 }
5110 }
5111 }
5112
5113 this.highlight_background::<DocumentHighlightRead>(
5114 &read_ranges,
5115 |theme| theme.editor_document_highlight_read_background,
5116 cx,
5117 );
5118 this.highlight_background::<DocumentHighlightWrite>(
5119 &write_ranges,
5120 |theme| theme.editor_document_highlight_write_background,
5121 cx,
5122 );
5123 cx.notify();
5124 })
5125 .log_err();
5126 }
5127 }));
5128 None
5129 }
5130
5131 pub fn refresh_inline_completion(
5132 &mut self,
5133 debounce: bool,
5134 user_requested: bool,
5135 cx: &mut ViewContext<Self>,
5136 ) -> Option<()> {
5137 let provider = self.inline_completion_provider()?;
5138 let cursor = self.selections.newest_anchor().head();
5139 let (buffer, cursor_buffer_position) =
5140 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5141
5142 if !user_requested
5143 && (!self.enable_inline_completions
5144 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5145 {
5146 self.discard_inline_completion(false, cx);
5147 return None;
5148 }
5149
5150 self.update_visible_inline_completion(cx);
5151 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5152 Some(())
5153 }
5154
5155 fn cycle_inline_completion(
5156 &mut self,
5157 direction: Direction,
5158 cx: &mut ViewContext<Self>,
5159 ) -> Option<()> {
5160 let provider = self.inline_completion_provider()?;
5161 let cursor = self.selections.newest_anchor().head();
5162 let (buffer, cursor_buffer_position) =
5163 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5164 if !self.enable_inline_completions
5165 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5166 {
5167 return None;
5168 }
5169
5170 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5171 self.update_visible_inline_completion(cx);
5172
5173 Some(())
5174 }
5175
5176 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5177 if !self.has_active_inline_completion(cx) {
5178 self.refresh_inline_completion(false, true, cx);
5179 return;
5180 }
5181
5182 self.update_visible_inline_completion(cx);
5183 }
5184
5185 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5186 self.show_cursor_names(cx);
5187 }
5188
5189 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5190 self.show_cursor_names = true;
5191 cx.notify();
5192 cx.spawn(|this, mut cx| async move {
5193 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5194 this.update(&mut cx, |this, cx| {
5195 this.show_cursor_names = false;
5196 cx.notify()
5197 })
5198 .ok()
5199 })
5200 .detach();
5201 }
5202
5203 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5204 if self.has_active_inline_completion(cx) {
5205 self.cycle_inline_completion(Direction::Next, cx);
5206 } else {
5207 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5208 if is_copilot_disabled {
5209 cx.propagate();
5210 }
5211 }
5212 }
5213
5214 pub fn previous_inline_completion(
5215 &mut self,
5216 _: &PreviousInlineCompletion,
5217 cx: &mut ViewContext<Self>,
5218 ) {
5219 if self.has_active_inline_completion(cx) {
5220 self.cycle_inline_completion(Direction::Prev, cx);
5221 } else {
5222 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5223 if is_copilot_disabled {
5224 cx.propagate();
5225 }
5226 }
5227 }
5228
5229 pub fn accept_inline_completion(
5230 &mut self,
5231 _: &AcceptInlineCompletion,
5232 cx: &mut ViewContext<Self>,
5233 ) {
5234 let Some(completion) = self.take_active_inline_completion(cx) else {
5235 return;
5236 };
5237 if let Some(provider) = self.inline_completion_provider() {
5238 provider.accept(cx);
5239 }
5240
5241 cx.emit(EditorEvent::InputHandled {
5242 utf16_range_to_replace: None,
5243 text: completion.text.to_string().into(),
5244 });
5245
5246 if let Some(range) = completion.delete_range {
5247 self.change_selections(None, cx, |s| s.select_ranges([range]))
5248 }
5249 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5250 self.refresh_inline_completion(true, true, cx);
5251 cx.notify();
5252 }
5253
5254 pub fn accept_partial_inline_completion(
5255 &mut self,
5256 _: &AcceptPartialInlineCompletion,
5257 cx: &mut ViewContext<Self>,
5258 ) {
5259 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5260 if let Some(completion) = self.take_active_inline_completion(cx) {
5261 let mut partial_completion = completion
5262 .text
5263 .chars()
5264 .by_ref()
5265 .take_while(|c| c.is_alphabetic())
5266 .collect::<String>();
5267 if partial_completion.is_empty() {
5268 partial_completion = completion
5269 .text
5270 .chars()
5271 .by_ref()
5272 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5273 .collect::<String>();
5274 }
5275
5276 cx.emit(EditorEvent::InputHandled {
5277 utf16_range_to_replace: None,
5278 text: partial_completion.clone().into(),
5279 });
5280
5281 if let Some(range) = completion.delete_range {
5282 self.change_selections(None, cx, |s| s.select_ranges([range]))
5283 }
5284 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5285
5286 self.refresh_inline_completion(true, true, cx);
5287 cx.notify();
5288 }
5289 }
5290 }
5291
5292 fn discard_inline_completion(
5293 &mut self,
5294 should_report_inline_completion_event: bool,
5295 cx: &mut ViewContext<Self>,
5296 ) -> bool {
5297 if let Some(provider) = self.inline_completion_provider() {
5298 provider.discard(should_report_inline_completion_event, cx);
5299 }
5300
5301 self.take_active_inline_completion(cx).is_some()
5302 }
5303
5304 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5305 if let Some(completion) = self.active_inline_completion.as_ref() {
5306 let buffer = self.buffer.read(cx).read(cx);
5307 completion.position.is_valid(&buffer)
5308 } else {
5309 false
5310 }
5311 }
5312
5313 fn take_active_inline_completion(
5314 &mut self,
5315 cx: &mut ViewContext<Self>,
5316 ) -> Option<CompletionState> {
5317 let completion = self.active_inline_completion.take()?;
5318 let render_inlay_ids = completion.render_inlay_ids.clone();
5319 self.display_map.update(cx, |map, cx| {
5320 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5321 });
5322 let buffer = self.buffer.read(cx).read(cx);
5323
5324 if completion.position.is_valid(&buffer) {
5325 Some(completion)
5326 } else {
5327 None
5328 }
5329 }
5330
5331 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5332 let selection = self.selections.newest_anchor();
5333 let cursor = selection.head();
5334
5335 let excerpt_id = cursor.excerpt_id;
5336
5337 if self.context_menu.read().is_none()
5338 && self.completion_tasks.is_empty()
5339 && selection.start == selection.end
5340 {
5341 if let Some(provider) = self.inline_completion_provider() {
5342 if let Some((buffer, cursor_buffer_position)) =
5343 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5344 {
5345 if let Some(proposal) =
5346 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5347 {
5348 let mut to_remove = Vec::new();
5349 if let Some(completion) = self.active_inline_completion.take() {
5350 to_remove.extend(completion.render_inlay_ids.iter());
5351 }
5352
5353 let to_add = proposal
5354 .inlays
5355 .iter()
5356 .filter_map(|inlay| {
5357 let snapshot = self.buffer.read(cx).snapshot(cx);
5358 let id = post_inc(&mut self.next_inlay_id);
5359 match inlay {
5360 InlayProposal::Hint(position, hint) => {
5361 let position =
5362 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5363 Some(Inlay::hint(id, position, hint))
5364 }
5365 InlayProposal::Suggestion(position, text) => {
5366 let position =
5367 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5368 Some(Inlay::suggestion(id, position, text.clone()))
5369 }
5370 }
5371 })
5372 .collect_vec();
5373
5374 self.active_inline_completion = Some(CompletionState {
5375 position: cursor,
5376 text: proposal.text,
5377 delete_range: proposal.delete_range.and_then(|range| {
5378 let snapshot = self.buffer.read(cx).snapshot(cx);
5379 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5380 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5381 Some(start?..end?)
5382 }),
5383 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5384 });
5385
5386 self.display_map
5387 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5388
5389 cx.notify();
5390 return;
5391 }
5392 }
5393 }
5394 }
5395
5396 self.discard_inline_completion(false, cx);
5397 }
5398
5399 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5400 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5401 }
5402
5403 fn render_code_actions_indicator(
5404 &self,
5405 _style: &EditorStyle,
5406 row: DisplayRow,
5407 is_active: bool,
5408 cx: &mut ViewContext<Self>,
5409 ) -> Option<IconButton> {
5410 if self.available_code_actions.is_some() {
5411 Some(
5412 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5413 .shape(ui::IconButtonShape::Square)
5414 .icon_size(IconSize::XSmall)
5415 .icon_color(Color::Muted)
5416 .selected(is_active)
5417 .tooltip({
5418 let focus_handle = self.focus_handle.clone();
5419 move |cx| {
5420 Tooltip::for_action_in(
5421 "Toggle Code Actions",
5422 &ToggleCodeActions {
5423 deployed_from_indicator: None,
5424 },
5425 &focus_handle,
5426 cx,
5427 )
5428 }
5429 })
5430 .on_click(cx.listener(move |editor, _e, cx| {
5431 editor.focus(cx);
5432 editor.toggle_code_actions(
5433 &ToggleCodeActions {
5434 deployed_from_indicator: Some(row),
5435 },
5436 cx,
5437 );
5438 })),
5439 )
5440 } else {
5441 None
5442 }
5443 }
5444
5445 fn clear_tasks(&mut self) {
5446 self.tasks.clear()
5447 }
5448
5449 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5450 if self.tasks.insert(key, value).is_some() {
5451 // This case should hopefully be rare, but just in case...
5452 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5453 }
5454 }
5455
5456 fn build_tasks_context(
5457 project: &Model<Project>,
5458 buffer: &Model<Buffer>,
5459 buffer_row: u32,
5460 tasks: &Arc<RunnableTasks>,
5461 cx: &mut ViewContext<Self>,
5462 ) -> Task<Option<task::TaskContext>> {
5463 let position = Point::new(buffer_row, tasks.column);
5464 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5465 let location = Location {
5466 buffer: buffer.clone(),
5467 range: range_start..range_start,
5468 };
5469 // Fill in the environmental variables from the tree-sitter captures
5470 let mut captured_task_variables = TaskVariables::default();
5471 for (capture_name, value) in tasks.extra_variables.clone() {
5472 captured_task_variables.insert(
5473 task::VariableName::Custom(capture_name.into()),
5474 value.clone(),
5475 );
5476 }
5477 project.update(cx, |project, cx| {
5478 project.task_store().update(cx, |task_store, cx| {
5479 task_store.task_context_for_location(captured_task_variables, location, cx)
5480 })
5481 })
5482 }
5483
5484 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5485 let Some((workspace, _)) = self.workspace.clone() else {
5486 return;
5487 };
5488 let Some(project) = self.project.clone() else {
5489 return;
5490 };
5491
5492 // Try to find a closest, enclosing node using tree-sitter that has a
5493 // task
5494 let Some((buffer, buffer_row, tasks)) = self
5495 .find_enclosing_node_task(cx)
5496 // Or find the task that's closest in row-distance.
5497 .or_else(|| self.find_closest_task(cx))
5498 else {
5499 return;
5500 };
5501
5502 let reveal_strategy = action.reveal;
5503 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5504 cx.spawn(|_, mut cx| async move {
5505 let context = task_context.await?;
5506 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5507
5508 let resolved = resolved_task.resolved.as_mut()?;
5509 resolved.reveal = reveal_strategy;
5510
5511 workspace
5512 .update(&mut cx, |workspace, cx| {
5513 workspace::tasks::schedule_resolved_task(
5514 workspace,
5515 task_source_kind,
5516 resolved_task,
5517 false,
5518 cx,
5519 );
5520 })
5521 .ok()
5522 })
5523 .detach();
5524 }
5525
5526 fn find_closest_task(
5527 &mut self,
5528 cx: &mut ViewContext<Self>,
5529 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5530 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5531
5532 let ((buffer_id, row), tasks) = self
5533 .tasks
5534 .iter()
5535 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5536
5537 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5538 let tasks = Arc::new(tasks.to_owned());
5539 Some((buffer, *row, tasks))
5540 }
5541
5542 fn find_enclosing_node_task(
5543 &mut self,
5544 cx: &mut ViewContext<Self>,
5545 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5546 let snapshot = self.buffer.read(cx).snapshot(cx);
5547 let offset = self.selections.newest::<usize>(cx).head();
5548 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5549 let buffer_id = excerpt.buffer().remote_id();
5550
5551 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5552 let mut cursor = layer.node().walk();
5553
5554 while cursor.goto_first_child_for_byte(offset).is_some() {
5555 if cursor.node().end_byte() == offset {
5556 cursor.goto_next_sibling();
5557 }
5558 }
5559
5560 // Ascend to the smallest ancestor that contains the range and has a task.
5561 loop {
5562 let node = cursor.node();
5563 let node_range = node.byte_range();
5564 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5565
5566 // Check if this node contains our offset
5567 if node_range.start <= offset && node_range.end >= offset {
5568 // If it contains offset, check for task
5569 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5570 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5571 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5572 }
5573 }
5574
5575 if !cursor.goto_parent() {
5576 break;
5577 }
5578 }
5579 None
5580 }
5581
5582 fn render_run_indicator(
5583 &self,
5584 _style: &EditorStyle,
5585 is_active: bool,
5586 row: DisplayRow,
5587 cx: &mut ViewContext<Self>,
5588 ) -> IconButton {
5589 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5590 .shape(ui::IconButtonShape::Square)
5591 .icon_size(IconSize::XSmall)
5592 .icon_color(Color::Muted)
5593 .selected(is_active)
5594 .on_click(cx.listener(move |editor, _e, cx| {
5595 editor.focus(cx);
5596 editor.toggle_code_actions(
5597 &ToggleCodeActions {
5598 deployed_from_indicator: Some(row),
5599 },
5600 cx,
5601 );
5602 }))
5603 }
5604
5605 pub fn context_menu_visible(&self) -> bool {
5606 self.context_menu
5607 .read()
5608 .as_ref()
5609 .map_or(false, |menu| menu.visible())
5610 }
5611
5612 fn render_context_menu(
5613 &self,
5614 cursor_position: DisplayPoint,
5615 style: &EditorStyle,
5616 max_height: Pixels,
5617 cx: &mut ViewContext<Editor>,
5618 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5619 self.context_menu.read().as_ref().map(|menu| {
5620 menu.render(
5621 cursor_position,
5622 style,
5623 max_height,
5624 self.workspace.as_ref().map(|(w, _)| w.clone()),
5625 cx,
5626 )
5627 })
5628 }
5629
5630 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5631 cx.notify();
5632 self.completion_tasks.clear();
5633 let context_menu = self.context_menu.write().take();
5634 if context_menu.is_some() {
5635 self.update_visible_inline_completion(cx);
5636 }
5637 context_menu
5638 }
5639
5640 pub fn insert_snippet(
5641 &mut self,
5642 insertion_ranges: &[Range<usize>],
5643 snippet: Snippet,
5644 cx: &mut ViewContext<Self>,
5645 ) -> Result<()> {
5646 struct Tabstop<T> {
5647 is_end_tabstop: bool,
5648 ranges: Vec<Range<T>>,
5649 }
5650
5651 let tabstops = self.buffer.update(cx, |buffer, cx| {
5652 let snippet_text: Arc<str> = snippet.text.clone().into();
5653 buffer.edit(
5654 insertion_ranges
5655 .iter()
5656 .cloned()
5657 .map(|range| (range, snippet_text.clone())),
5658 Some(AutoindentMode::EachLine),
5659 cx,
5660 );
5661
5662 let snapshot = &*buffer.read(cx);
5663 let snippet = &snippet;
5664 snippet
5665 .tabstops
5666 .iter()
5667 .map(|tabstop| {
5668 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5669 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5670 });
5671 let mut tabstop_ranges = tabstop
5672 .iter()
5673 .flat_map(|tabstop_range| {
5674 let mut delta = 0_isize;
5675 insertion_ranges.iter().map(move |insertion_range| {
5676 let insertion_start = insertion_range.start as isize + delta;
5677 delta +=
5678 snippet.text.len() as isize - insertion_range.len() as isize;
5679
5680 let start = ((insertion_start + tabstop_range.start) as usize)
5681 .min(snapshot.len());
5682 let end = ((insertion_start + tabstop_range.end) as usize)
5683 .min(snapshot.len());
5684 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5685 })
5686 })
5687 .collect::<Vec<_>>();
5688 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5689
5690 Tabstop {
5691 is_end_tabstop,
5692 ranges: tabstop_ranges,
5693 }
5694 })
5695 .collect::<Vec<_>>()
5696 });
5697 if let Some(tabstop) = tabstops.first() {
5698 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5699 s.select_ranges(tabstop.ranges.iter().cloned());
5700 });
5701
5702 // If we're already at the last tabstop and it's at the end of the snippet,
5703 // we're done, we don't need to keep the state around.
5704 if !tabstop.is_end_tabstop {
5705 let ranges = tabstops
5706 .into_iter()
5707 .map(|tabstop| tabstop.ranges)
5708 .collect::<Vec<_>>();
5709 self.snippet_stack.push(SnippetState {
5710 active_index: 0,
5711 ranges,
5712 });
5713 }
5714
5715 // Check whether the just-entered snippet ends with an auto-closable bracket.
5716 if self.autoclose_regions.is_empty() {
5717 let snapshot = self.buffer.read(cx).snapshot(cx);
5718 for selection in &mut self.selections.all::<Point>(cx) {
5719 let selection_head = selection.head();
5720 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5721 continue;
5722 };
5723
5724 let mut bracket_pair = None;
5725 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5726 let prev_chars = snapshot
5727 .reversed_chars_at(selection_head)
5728 .collect::<String>();
5729 for (pair, enabled) in scope.brackets() {
5730 if enabled
5731 && pair.close
5732 && prev_chars.starts_with(pair.start.as_str())
5733 && next_chars.starts_with(pair.end.as_str())
5734 {
5735 bracket_pair = Some(pair.clone());
5736 break;
5737 }
5738 }
5739 if let Some(pair) = bracket_pair {
5740 let start = snapshot.anchor_after(selection_head);
5741 let end = snapshot.anchor_after(selection_head);
5742 self.autoclose_regions.push(AutocloseRegion {
5743 selection_id: selection.id,
5744 range: start..end,
5745 pair,
5746 });
5747 }
5748 }
5749 }
5750 }
5751 Ok(())
5752 }
5753
5754 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5755 self.move_to_snippet_tabstop(Bias::Right, cx)
5756 }
5757
5758 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5759 self.move_to_snippet_tabstop(Bias::Left, cx)
5760 }
5761
5762 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5763 if let Some(mut snippet) = self.snippet_stack.pop() {
5764 match bias {
5765 Bias::Left => {
5766 if snippet.active_index > 0 {
5767 snippet.active_index -= 1;
5768 } else {
5769 self.snippet_stack.push(snippet);
5770 return false;
5771 }
5772 }
5773 Bias::Right => {
5774 if snippet.active_index + 1 < snippet.ranges.len() {
5775 snippet.active_index += 1;
5776 } else {
5777 self.snippet_stack.push(snippet);
5778 return false;
5779 }
5780 }
5781 }
5782 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5783 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5784 s.select_anchor_ranges(current_ranges.iter().cloned())
5785 });
5786 // If snippet state is not at the last tabstop, push it back on the stack
5787 if snippet.active_index + 1 < snippet.ranges.len() {
5788 self.snippet_stack.push(snippet);
5789 }
5790 return true;
5791 }
5792 }
5793
5794 false
5795 }
5796
5797 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5798 self.transact(cx, |this, cx| {
5799 this.select_all(&SelectAll, cx);
5800 this.insert("", cx);
5801 });
5802 }
5803
5804 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5805 self.transact(cx, |this, cx| {
5806 this.select_autoclose_pair(cx);
5807 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5808 if !this.linked_edit_ranges.is_empty() {
5809 let selections = this.selections.all::<MultiBufferPoint>(cx);
5810 let snapshot = this.buffer.read(cx).snapshot(cx);
5811
5812 for selection in selections.iter() {
5813 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5814 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5815 if selection_start.buffer_id != selection_end.buffer_id {
5816 continue;
5817 }
5818 if let Some(ranges) =
5819 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5820 {
5821 for (buffer, entries) in ranges {
5822 linked_ranges.entry(buffer).or_default().extend(entries);
5823 }
5824 }
5825 }
5826 }
5827
5828 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5829 if !this.selections.line_mode {
5830 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5831 for selection in &mut selections {
5832 if selection.is_empty() {
5833 let old_head = selection.head();
5834 let mut new_head =
5835 movement::left(&display_map, old_head.to_display_point(&display_map))
5836 .to_point(&display_map);
5837 if let Some((buffer, line_buffer_range)) = display_map
5838 .buffer_snapshot
5839 .buffer_line_for_row(MultiBufferRow(old_head.row))
5840 {
5841 let indent_size =
5842 buffer.indent_size_for_line(line_buffer_range.start.row);
5843 let indent_len = match indent_size.kind {
5844 IndentKind::Space => {
5845 buffer.settings_at(line_buffer_range.start, cx).tab_size
5846 }
5847 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5848 };
5849 if old_head.column <= indent_size.len && old_head.column > 0 {
5850 let indent_len = indent_len.get();
5851 new_head = cmp::min(
5852 new_head,
5853 MultiBufferPoint::new(
5854 old_head.row,
5855 ((old_head.column - 1) / indent_len) * indent_len,
5856 ),
5857 );
5858 }
5859 }
5860
5861 selection.set_head(new_head, SelectionGoal::None);
5862 }
5863 }
5864 }
5865
5866 this.signature_help_state.set_backspace_pressed(true);
5867 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5868 this.insert("", cx);
5869 let empty_str: Arc<str> = Arc::from("");
5870 for (buffer, edits) in linked_ranges {
5871 let snapshot = buffer.read(cx).snapshot();
5872 use text::ToPoint as TP;
5873
5874 let edits = edits
5875 .into_iter()
5876 .map(|range| {
5877 let end_point = TP::to_point(&range.end, &snapshot);
5878 let mut start_point = TP::to_point(&range.start, &snapshot);
5879
5880 if end_point == start_point {
5881 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5882 .saturating_sub(1);
5883 start_point = TP::to_point(&offset, &snapshot);
5884 };
5885
5886 (start_point..end_point, empty_str.clone())
5887 })
5888 .sorted_by_key(|(range, _)| range.start)
5889 .collect::<Vec<_>>();
5890 buffer.update(cx, |this, cx| {
5891 this.edit(edits, None, cx);
5892 })
5893 }
5894 this.refresh_inline_completion(true, false, cx);
5895 linked_editing_ranges::refresh_linked_ranges(this, cx);
5896 });
5897 }
5898
5899 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5900 self.transact(cx, |this, cx| {
5901 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5902 let line_mode = s.line_mode;
5903 s.move_with(|map, selection| {
5904 if selection.is_empty() && !line_mode {
5905 let cursor = movement::right(map, selection.head());
5906 selection.end = cursor;
5907 selection.reversed = true;
5908 selection.goal = SelectionGoal::None;
5909 }
5910 })
5911 });
5912 this.insert("", cx);
5913 this.refresh_inline_completion(true, false, cx);
5914 });
5915 }
5916
5917 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5918 if self.move_to_prev_snippet_tabstop(cx) {
5919 return;
5920 }
5921
5922 self.outdent(&Outdent, cx);
5923 }
5924
5925 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5926 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5927 return;
5928 }
5929
5930 let mut selections = self.selections.all_adjusted(cx);
5931 let buffer = self.buffer.read(cx);
5932 let snapshot = buffer.snapshot(cx);
5933 let rows_iter = selections.iter().map(|s| s.head().row);
5934 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5935
5936 let mut edits = Vec::new();
5937 let mut prev_edited_row = 0;
5938 let mut row_delta = 0;
5939 for selection in &mut selections {
5940 if selection.start.row != prev_edited_row {
5941 row_delta = 0;
5942 }
5943 prev_edited_row = selection.end.row;
5944
5945 // If the selection is non-empty, then increase the indentation of the selected lines.
5946 if !selection.is_empty() {
5947 row_delta =
5948 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5949 continue;
5950 }
5951
5952 // If the selection is empty and the cursor is in the leading whitespace before the
5953 // suggested indentation, then auto-indent the line.
5954 let cursor = selection.head();
5955 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5956 if let Some(suggested_indent) =
5957 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5958 {
5959 if cursor.column < suggested_indent.len
5960 && cursor.column <= current_indent.len
5961 && current_indent.len <= suggested_indent.len
5962 {
5963 selection.start = Point::new(cursor.row, suggested_indent.len);
5964 selection.end = selection.start;
5965 if row_delta == 0 {
5966 edits.extend(Buffer::edit_for_indent_size_adjustment(
5967 cursor.row,
5968 current_indent,
5969 suggested_indent,
5970 ));
5971 row_delta = suggested_indent.len - current_indent.len;
5972 }
5973 continue;
5974 }
5975 }
5976
5977 // Otherwise, insert a hard or soft tab.
5978 let settings = buffer.settings_at(cursor, cx);
5979 let tab_size = if settings.hard_tabs {
5980 IndentSize::tab()
5981 } else {
5982 let tab_size = settings.tab_size.get();
5983 let char_column = snapshot
5984 .text_for_range(Point::new(cursor.row, 0)..cursor)
5985 .flat_map(str::chars)
5986 .count()
5987 + row_delta as usize;
5988 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5989 IndentSize::spaces(chars_to_next_tab_stop)
5990 };
5991 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5992 selection.end = selection.start;
5993 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5994 row_delta += tab_size.len;
5995 }
5996
5997 self.transact(cx, |this, cx| {
5998 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5999 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6000 this.refresh_inline_completion(true, false, cx);
6001 });
6002 }
6003
6004 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6005 if self.read_only(cx) {
6006 return;
6007 }
6008 let mut selections = self.selections.all::<Point>(cx);
6009 let mut prev_edited_row = 0;
6010 let mut row_delta = 0;
6011 let mut edits = Vec::new();
6012 let buffer = self.buffer.read(cx);
6013 let snapshot = buffer.snapshot(cx);
6014 for selection in &mut selections {
6015 if selection.start.row != prev_edited_row {
6016 row_delta = 0;
6017 }
6018 prev_edited_row = selection.end.row;
6019
6020 row_delta =
6021 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6022 }
6023
6024 self.transact(cx, |this, cx| {
6025 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6026 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6027 });
6028 }
6029
6030 fn indent_selection(
6031 buffer: &MultiBuffer,
6032 snapshot: &MultiBufferSnapshot,
6033 selection: &mut Selection<Point>,
6034 edits: &mut Vec<(Range<Point>, String)>,
6035 delta_for_start_row: u32,
6036 cx: &AppContext,
6037 ) -> u32 {
6038 let settings = buffer.settings_at(selection.start, cx);
6039 let tab_size = settings.tab_size.get();
6040 let indent_kind = if settings.hard_tabs {
6041 IndentKind::Tab
6042 } else {
6043 IndentKind::Space
6044 };
6045 let mut start_row = selection.start.row;
6046 let mut end_row = selection.end.row + 1;
6047
6048 // If a selection ends at the beginning of a line, don't indent
6049 // that last line.
6050 if selection.end.column == 0 && selection.end.row > selection.start.row {
6051 end_row -= 1;
6052 }
6053
6054 // Avoid re-indenting a row that has already been indented by a
6055 // previous selection, but still update this selection's column
6056 // to reflect that indentation.
6057 if delta_for_start_row > 0 {
6058 start_row += 1;
6059 selection.start.column += delta_for_start_row;
6060 if selection.end.row == selection.start.row {
6061 selection.end.column += delta_for_start_row;
6062 }
6063 }
6064
6065 let mut delta_for_end_row = 0;
6066 let has_multiple_rows = start_row + 1 != end_row;
6067 for row in start_row..end_row {
6068 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6069 let indent_delta = match (current_indent.kind, indent_kind) {
6070 (IndentKind::Space, IndentKind::Space) => {
6071 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6072 IndentSize::spaces(columns_to_next_tab_stop)
6073 }
6074 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6075 (_, IndentKind::Tab) => IndentSize::tab(),
6076 };
6077
6078 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6079 0
6080 } else {
6081 selection.start.column
6082 };
6083 let row_start = Point::new(row, start);
6084 edits.push((
6085 row_start..row_start,
6086 indent_delta.chars().collect::<String>(),
6087 ));
6088
6089 // Update this selection's endpoints to reflect the indentation.
6090 if row == selection.start.row {
6091 selection.start.column += indent_delta.len;
6092 }
6093 if row == selection.end.row {
6094 selection.end.column += indent_delta.len;
6095 delta_for_end_row = indent_delta.len;
6096 }
6097 }
6098
6099 if selection.start.row == selection.end.row {
6100 delta_for_start_row + delta_for_end_row
6101 } else {
6102 delta_for_end_row
6103 }
6104 }
6105
6106 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6107 if self.read_only(cx) {
6108 return;
6109 }
6110 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6111 let selections = self.selections.all::<Point>(cx);
6112 let mut deletion_ranges = Vec::new();
6113 let mut last_outdent = None;
6114 {
6115 let buffer = self.buffer.read(cx);
6116 let snapshot = buffer.snapshot(cx);
6117 for selection in &selections {
6118 let settings = buffer.settings_at(selection.start, cx);
6119 let tab_size = settings.tab_size.get();
6120 let mut rows = selection.spanned_rows(false, &display_map);
6121
6122 // Avoid re-outdenting a row that has already been outdented by a
6123 // previous selection.
6124 if let Some(last_row) = last_outdent {
6125 if last_row == rows.start {
6126 rows.start = rows.start.next_row();
6127 }
6128 }
6129 let has_multiple_rows = rows.len() > 1;
6130 for row in rows.iter_rows() {
6131 let indent_size = snapshot.indent_size_for_line(row);
6132 if indent_size.len > 0 {
6133 let deletion_len = match indent_size.kind {
6134 IndentKind::Space => {
6135 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6136 if columns_to_prev_tab_stop == 0 {
6137 tab_size
6138 } else {
6139 columns_to_prev_tab_stop
6140 }
6141 }
6142 IndentKind::Tab => 1,
6143 };
6144 let start = if has_multiple_rows
6145 || deletion_len > selection.start.column
6146 || indent_size.len < selection.start.column
6147 {
6148 0
6149 } else {
6150 selection.start.column - deletion_len
6151 };
6152 deletion_ranges.push(
6153 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6154 );
6155 last_outdent = Some(row);
6156 }
6157 }
6158 }
6159 }
6160
6161 self.transact(cx, |this, cx| {
6162 this.buffer.update(cx, |buffer, cx| {
6163 let empty_str: Arc<str> = Arc::default();
6164 buffer.edit(
6165 deletion_ranges
6166 .into_iter()
6167 .map(|range| (range, empty_str.clone())),
6168 None,
6169 cx,
6170 );
6171 });
6172 let selections = this.selections.all::<usize>(cx);
6173 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6174 });
6175 }
6176
6177 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6178 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6179 let selections = self.selections.all::<Point>(cx);
6180
6181 let mut new_cursors = Vec::new();
6182 let mut edit_ranges = Vec::new();
6183 let mut selections = selections.iter().peekable();
6184 while let Some(selection) = selections.next() {
6185 let mut rows = selection.spanned_rows(false, &display_map);
6186 let goal_display_column = selection.head().to_display_point(&display_map).column();
6187
6188 // Accumulate contiguous regions of rows that we want to delete.
6189 while let Some(next_selection) = selections.peek() {
6190 let next_rows = next_selection.spanned_rows(false, &display_map);
6191 if next_rows.start <= rows.end {
6192 rows.end = next_rows.end;
6193 selections.next().unwrap();
6194 } else {
6195 break;
6196 }
6197 }
6198
6199 let buffer = &display_map.buffer_snapshot;
6200 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6201 let edit_end;
6202 let cursor_buffer_row;
6203 if buffer.max_point().row >= rows.end.0 {
6204 // If there's a line after the range, delete the \n from the end of the row range
6205 // and position the cursor on the next line.
6206 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6207 cursor_buffer_row = rows.end;
6208 } else {
6209 // If there isn't a line after the range, delete the \n from the line before the
6210 // start of the row range and position the cursor there.
6211 edit_start = edit_start.saturating_sub(1);
6212 edit_end = buffer.len();
6213 cursor_buffer_row = rows.start.previous_row();
6214 }
6215
6216 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6217 *cursor.column_mut() =
6218 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6219
6220 new_cursors.push((
6221 selection.id,
6222 buffer.anchor_after(cursor.to_point(&display_map)),
6223 ));
6224 edit_ranges.push(edit_start..edit_end);
6225 }
6226
6227 self.transact(cx, |this, cx| {
6228 let buffer = this.buffer.update(cx, |buffer, cx| {
6229 let empty_str: Arc<str> = Arc::default();
6230 buffer.edit(
6231 edit_ranges
6232 .into_iter()
6233 .map(|range| (range, empty_str.clone())),
6234 None,
6235 cx,
6236 );
6237 buffer.snapshot(cx)
6238 });
6239 let new_selections = new_cursors
6240 .into_iter()
6241 .map(|(id, cursor)| {
6242 let cursor = cursor.to_point(&buffer);
6243 Selection {
6244 id,
6245 start: cursor,
6246 end: cursor,
6247 reversed: false,
6248 goal: SelectionGoal::None,
6249 }
6250 })
6251 .collect();
6252
6253 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6254 s.select(new_selections);
6255 });
6256 });
6257 }
6258
6259 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6260 if self.read_only(cx) {
6261 return;
6262 }
6263 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6264 for selection in self.selections.all::<Point>(cx) {
6265 let start = MultiBufferRow(selection.start.row);
6266 let end = if selection.start.row == selection.end.row {
6267 MultiBufferRow(selection.start.row + 1)
6268 } else {
6269 MultiBufferRow(selection.end.row)
6270 };
6271
6272 if let Some(last_row_range) = row_ranges.last_mut() {
6273 if start <= last_row_range.end {
6274 last_row_range.end = end;
6275 continue;
6276 }
6277 }
6278 row_ranges.push(start..end);
6279 }
6280
6281 let snapshot = self.buffer.read(cx).snapshot(cx);
6282 let mut cursor_positions = Vec::new();
6283 for row_range in &row_ranges {
6284 let anchor = snapshot.anchor_before(Point::new(
6285 row_range.end.previous_row().0,
6286 snapshot.line_len(row_range.end.previous_row()),
6287 ));
6288 cursor_positions.push(anchor..anchor);
6289 }
6290
6291 self.transact(cx, |this, cx| {
6292 for row_range in row_ranges.into_iter().rev() {
6293 for row in row_range.iter_rows().rev() {
6294 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6295 let next_line_row = row.next_row();
6296 let indent = snapshot.indent_size_for_line(next_line_row);
6297 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6298
6299 let replace = if snapshot.line_len(next_line_row) > indent.len {
6300 " "
6301 } else {
6302 ""
6303 };
6304
6305 this.buffer.update(cx, |buffer, cx| {
6306 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6307 });
6308 }
6309 }
6310
6311 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6312 s.select_anchor_ranges(cursor_positions)
6313 });
6314 });
6315 }
6316
6317 pub fn sort_lines_case_sensitive(
6318 &mut self,
6319 _: &SortLinesCaseSensitive,
6320 cx: &mut ViewContext<Self>,
6321 ) {
6322 self.manipulate_lines(cx, |lines| lines.sort())
6323 }
6324
6325 pub fn sort_lines_case_insensitive(
6326 &mut self,
6327 _: &SortLinesCaseInsensitive,
6328 cx: &mut ViewContext<Self>,
6329 ) {
6330 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6331 }
6332
6333 pub fn unique_lines_case_insensitive(
6334 &mut self,
6335 _: &UniqueLinesCaseInsensitive,
6336 cx: &mut ViewContext<Self>,
6337 ) {
6338 self.manipulate_lines(cx, |lines| {
6339 let mut seen = HashSet::default();
6340 lines.retain(|line| seen.insert(line.to_lowercase()));
6341 })
6342 }
6343
6344 pub fn unique_lines_case_sensitive(
6345 &mut self,
6346 _: &UniqueLinesCaseSensitive,
6347 cx: &mut ViewContext<Self>,
6348 ) {
6349 self.manipulate_lines(cx, |lines| {
6350 let mut seen = HashSet::default();
6351 lines.retain(|line| seen.insert(*line));
6352 })
6353 }
6354
6355 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6356 let mut revert_changes = HashMap::default();
6357 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6358 for hunk in hunks_for_rows(
6359 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6360 &multi_buffer_snapshot,
6361 ) {
6362 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6363 }
6364 if !revert_changes.is_empty() {
6365 self.transact(cx, |editor, cx| {
6366 editor.revert(revert_changes, cx);
6367 });
6368 }
6369 }
6370
6371 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6372 let Some(project) = self.project.clone() else {
6373 return;
6374 };
6375 self.reload(project, cx).detach_and_notify_err(cx);
6376 }
6377
6378 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6379 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6380 if !revert_changes.is_empty() {
6381 self.transact(cx, |editor, cx| {
6382 editor.revert(revert_changes, cx);
6383 });
6384 }
6385 }
6386
6387 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6388 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6389 let project_path = buffer.read(cx).project_path(cx)?;
6390 let project = self.project.as_ref()?.read(cx);
6391 let entry = project.entry_for_path(&project_path, cx)?;
6392 let parent = match &entry.canonical_path {
6393 Some(canonical_path) => canonical_path.to_path_buf(),
6394 None => project.absolute_path(&project_path, cx)?,
6395 }
6396 .parent()?
6397 .to_path_buf();
6398 Some(parent)
6399 }) {
6400 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6401 }
6402 }
6403
6404 fn gather_revert_changes(
6405 &mut self,
6406 selections: &[Selection<Anchor>],
6407 cx: &mut ViewContext<'_, Editor>,
6408 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6409 let mut revert_changes = HashMap::default();
6410 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6411 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6412 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6413 }
6414 revert_changes
6415 }
6416
6417 pub fn prepare_revert_change(
6418 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6419 multi_buffer: &Model<MultiBuffer>,
6420 hunk: &MultiBufferDiffHunk,
6421 cx: &AppContext,
6422 ) -> Option<()> {
6423 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6424 let buffer = buffer.read(cx);
6425 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6426 let buffer_snapshot = buffer.snapshot();
6427 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6428 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6429 probe
6430 .0
6431 .start
6432 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6433 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6434 }) {
6435 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6436 Some(())
6437 } else {
6438 None
6439 }
6440 }
6441
6442 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6443 self.manipulate_lines(cx, |lines| lines.reverse())
6444 }
6445
6446 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6447 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6448 }
6449
6450 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6451 where
6452 Fn: FnMut(&mut Vec<&str>),
6453 {
6454 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6455 let buffer = self.buffer.read(cx).snapshot(cx);
6456
6457 let mut edits = Vec::new();
6458
6459 let selections = self.selections.all::<Point>(cx);
6460 let mut selections = selections.iter().peekable();
6461 let mut contiguous_row_selections = Vec::new();
6462 let mut new_selections = Vec::new();
6463 let mut added_lines = 0;
6464 let mut removed_lines = 0;
6465
6466 while let Some(selection) = selections.next() {
6467 let (start_row, end_row) = consume_contiguous_rows(
6468 &mut contiguous_row_selections,
6469 selection,
6470 &display_map,
6471 &mut selections,
6472 );
6473
6474 let start_point = Point::new(start_row.0, 0);
6475 let end_point = Point::new(
6476 end_row.previous_row().0,
6477 buffer.line_len(end_row.previous_row()),
6478 );
6479 let text = buffer
6480 .text_for_range(start_point..end_point)
6481 .collect::<String>();
6482
6483 let mut lines = text.split('\n').collect_vec();
6484
6485 let lines_before = lines.len();
6486 callback(&mut lines);
6487 let lines_after = lines.len();
6488
6489 edits.push((start_point..end_point, lines.join("\n")));
6490
6491 // Selections must change based on added and removed line count
6492 let start_row =
6493 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6494 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6495 new_selections.push(Selection {
6496 id: selection.id,
6497 start: start_row,
6498 end: end_row,
6499 goal: SelectionGoal::None,
6500 reversed: selection.reversed,
6501 });
6502
6503 if lines_after > lines_before {
6504 added_lines += lines_after - lines_before;
6505 } else if lines_before > lines_after {
6506 removed_lines += lines_before - lines_after;
6507 }
6508 }
6509
6510 self.transact(cx, |this, cx| {
6511 let buffer = this.buffer.update(cx, |buffer, cx| {
6512 buffer.edit(edits, None, cx);
6513 buffer.snapshot(cx)
6514 });
6515
6516 // Recalculate offsets on newly edited buffer
6517 let new_selections = new_selections
6518 .iter()
6519 .map(|s| {
6520 let start_point = Point::new(s.start.0, 0);
6521 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6522 Selection {
6523 id: s.id,
6524 start: buffer.point_to_offset(start_point),
6525 end: buffer.point_to_offset(end_point),
6526 goal: s.goal,
6527 reversed: s.reversed,
6528 }
6529 })
6530 .collect();
6531
6532 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6533 s.select(new_selections);
6534 });
6535
6536 this.request_autoscroll(Autoscroll::fit(), cx);
6537 });
6538 }
6539
6540 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6541 self.manipulate_text(cx, |text| text.to_uppercase())
6542 }
6543
6544 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6545 self.manipulate_text(cx, |text| text.to_lowercase())
6546 }
6547
6548 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6549 self.manipulate_text(cx, |text| {
6550 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6551 // https://github.com/rutrum/convert-case/issues/16
6552 text.split('\n')
6553 .map(|line| line.to_case(Case::Title))
6554 .join("\n")
6555 })
6556 }
6557
6558 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6559 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6560 }
6561
6562 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6563 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6564 }
6565
6566 pub fn convert_to_upper_camel_case(
6567 &mut self,
6568 _: &ConvertToUpperCamelCase,
6569 cx: &mut ViewContext<Self>,
6570 ) {
6571 self.manipulate_text(cx, |text| {
6572 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6573 // https://github.com/rutrum/convert-case/issues/16
6574 text.split('\n')
6575 .map(|line| line.to_case(Case::UpperCamel))
6576 .join("\n")
6577 })
6578 }
6579
6580 pub fn convert_to_lower_camel_case(
6581 &mut self,
6582 _: &ConvertToLowerCamelCase,
6583 cx: &mut ViewContext<Self>,
6584 ) {
6585 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6586 }
6587
6588 pub fn convert_to_opposite_case(
6589 &mut self,
6590 _: &ConvertToOppositeCase,
6591 cx: &mut ViewContext<Self>,
6592 ) {
6593 self.manipulate_text(cx, |text| {
6594 text.chars()
6595 .fold(String::with_capacity(text.len()), |mut t, c| {
6596 if c.is_uppercase() {
6597 t.extend(c.to_lowercase());
6598 } else {
6599 t.extend(c.to_uppercase());
6600 }
6601 t
6602 })
6603 })
6604 }
6605
6606 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6607 where
6608 Fn: FnMut(&str) -> String,
6609 {
6610 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6611 let buffer = self.buffer.read(cx).snapshot(cx);
6612
6613 let mut new_selections = Vec::new();
6614 let mut edits = Vec::new();
6615 let mut selection_adjustment = 0i32;
6616
6617 for selection in self.selections.all::<usize>(cx) {
6618 let selection_is_empty = selection.is_empty();
6619
6620 let (start, end) = if selection_is_empty {
6621 let word_range = movement::surrounding_word(
6622 &display_map,
6623 selection.start.to_display_point(&display_map),
6624 );
6625 let start = word_range.start.to_offset(&display_map, Bias::Left);
6626 let end = word_range.end.to_offset(&display_map, Bias::Left);
6627 (start, end)
6628 } else {
6629 (selection.start, selection.end)
6630 };
6631
6632 let text = buffer.text_for_range(start..end).collect::<String>();
6633 let old_length = text.len() as i32;
6634 let text = callback(&text);
6635
6636 new_selections.push(Selection {
6637 start: (start as i32 - selection_adjustment) as usize,
6638 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6639 goal: SelectionGoal::None,
6640 ..selection
6641 });
6642
6643 selection_adjustment += old_length - text.len() as i32;
6644
6645 edits.push((start..end, text));
6646 }
6647
6648 self.transact(cx, |this, cx| {
6649 this.buffer.update(cx, |buffer, cx| {
6650 buffer.edit(edits, None, cx);
6651 });
6652
6653 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6654 s.select(new_selections);
6655 });
6656
6657 this.request_autoscroll(Autoscroll::fit(), cx);
6658 });
6659 }
6660
6661 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6662 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6663 let buffer = &display_map.buffer_snapshot;
6664 let selections = self.selections.all::<Point>(cx);
6665
6666 let mut edits = Vec::new();
6667 let mut selections_iter = selections.iter().peekable();
6668 while let Some(selection) = selections_iter.next() {
6669 // Avoid duplicating the same lines twice.
6670 let mut rows = selection.spanned_rows(false, &display_map);
6671
6672 while let Some(next_selection) = selections_iter.peek() {
6673 let next_rows = next_selection.spanned_rows(false, &display_map);
6674 if next_rows.start < rows.end {
6675 rows.end = next_rows.end;
6676 selections_iter.next().unwrap();
6677 } else {
6678 break;
6679 }
6680 }
6681
6682 // Copy the text from the selected row region and splice it either at the start
6683 // or end of the region.
6684 let start = Point::new(rows.start.0, 0);
6685 let end = Point::new(
6686 rows.end.previous_row().0,
6687 buffer.line_len(rows.end.previous_row()),
6688 );
6689 let text = buffer
6690 .text_for_range(start..end)
6691 .chain(Some("\n"))
6692 .collect::<String>();
6693 let insert_location = if upwards {
6694 Point::new(rows.end.0, 0)
6695 } else {
6696 start
6697 };
6698 edits.push((insert_location..insert_location, text));
6699 }
6700
6701 self.transact(cx, |this, cx| {
6702 this.buffer.update(cx, |buffer, cx| {
6703 buffer.edit(edits, None, cx);
6704 });
6705
6706 this.request_autoscroll(Autoscroll::fit(), cx);
6707 });
6708 }
6709
6710 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6711 self.duplicate_line(true, cx);
6712 }
6713
6714 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6715 self.duplicate_line(false, cx);
6716 }
6717
6718 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6719 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6720 let buffer = self.buffer.read(cx).snapshot(cx);
6721
6722 let mut edits = Vec::new();
6723 let mut unfold_ranges = Vec::new();
6724 let mut refold_ranges = Vec::new();
6725
6726 let selections = self.selections.all::<Point>(cx);
6727 let mut selections = selections.iter().peekable();
6728 let mut contiguous_row_selections = Vec::new();
6729 let mut new_selections = Vec::new();
6730
6731 while let Some(selection) = selections.next() {
6732 // Find all the selections that span a contiguous row range
6733 let (start_row, end_row) = consume_contiguous_rows(
6734 &mut contiguous_row_selections,
6735 selection,
6736 &display_map,
6737 &mut selections,
6738 );
6739
6740 // Move the text spanned by the row range to be before the line preceding the row range
6741 if start_row.0 > 0 {
6742 let range_to_move = Point::new(
6743 start_row.previous_row().0,
6744 buffer.line_len(start_row.previous_row()),
6745 )
6746 ..Point::new(
6747 end_row.previous_row().0,
6748 buffer.line_len(end_row.previous_row()),
6749 );
6750 let insertion_point = display_map
6751 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6752 .0;
6753
6754 // Don't move lines across excerpts
6755 if buffer
6756 .excerpt_boundaries_in_range((
6757 Bound::Excluded(insertion_point),
6758 Bound::Included(range_to_move.end),
6759 ))
6760 .next()
6761 .is_none()
6762 {
6763 let text = buffer
6764 .text_for_range(range_to_move.clone())
6765 .flat_map(|s| s.chars())
6766 .skip(1)
6767 .chain(['\n'])
6768 .collect::<String>();
6769
6770 edits.push((
6771 buffer.anchor_after(range_to_move.start)
6772 ..buffer.anchor_before(range_to_move.end),
6773 String::new(),
6774 ));
6775 let insertion_anchor = buffer.anchor_after(insertion_point);
6776 edits.push((insertion_anchor..insertion_anchor, text));
6777
6778 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6779
6780 // Move selections up
6781 new_selections.extend(contiguous_row_selections.drain(..).map(
6782 |mut selection| {
6783 selection.start.row -= row_delta;
6784 selection.end.row -= row_delta;
6785 selection
6786 },
6787 ));
6788
6789 // Move folds up
6790 unfold_ranges.push(range_to_move.clone());
6791 for fold in display_map.folds_in_range(
6792 buffer.anchor_before(range_to_move.start)
6793 ..buffer.anchor_after(range_to_move.end),
6794 ) {
6795 let mut start = fold.range.start.to_point(&buffer);
6796 let mut end = fold.range.end.to_point(&buffer);
6797 start.row -= row_delta;
6798 end.row -= row_delta;
6799 refold_ranges.push((start..end, fold.placeholder.clone()));
6800 }
6801 }
6802 }
6803
6804 // If we didn't move line(s), preserve the existing selections
6805 new_selections.append(&mut contiguous_row_selections);
6806 }
6807
6808 self.transact(cx, |this, cx| {
6809 this.unfold_ranges(unfold_ranges, true, true, cx);
6810 this.buffer.update(cx, |buffer, cx| {
6811 for (range, text) in edits {
6812 buffer.edit([(range, text)], None, cx);
6813 }
6814 });
6815 this.fold_ranges(refold_ranges, true, cx);
6816 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6817 s.select(new_selections);
6818 })
6819 });
6820 }
6821
6822 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6823 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6824 let buffer = self.buffer.read(cx).snapshot(cx);
6825
6826 let mut edits = Vec::new();
6827 let mut unfold_ranges = Vec::new();
6828 let mut refold_ranges = Vec::new();
6829
6830 let selections = self.selections.all::<Point>(cx);
6831 let mut selections = selections.iter().peekable();
6832 let mut contiguous_row_selections = Vec::new();
6833 let mut new_selections = Vec::new();
6834
6835 while let Some(selection) = selections.next() {
6836 // Find all the selections that span a contiguous row range
6837 let (start_row, end_row) = consume_contiguous_rows(
6838 &mut contiguous_row_selections,
6839 selection,
6840 &display_map,
6841 &mut selections,
6842 );
6843
6844 // Move the text spanned by the row range to be after the last line of the row range
6845 if end_row.0 <= buffer.max_point().row {
6846 let range_to_move =
6847 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6848 let insertion_point = display_map
6849 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6850 .0;
6851
6852 // Don't move lines across excerpt boundaries
6853 if buffer
6854 .excerpt_boundaries_in_range((
6855 Bound::Excluded(range_to_move.start),
6856 Bound::Included(insertion_point),
6857 ))
6858 .next()
6859 .is_none()
6860 {
6861 let mut text = String::from("\n");
6862 text.extend(buffer.text_for_range(range_to_move.clone()));
6863 text.pop(); // Drop trailing newline
6864 edits.push((
6865 buffer.anchor_after(range_to_move.start)
6866 ..buffer.anchor_before(range_to_move.end),
6867 String::new(),
6868 ));
6869 let insertion_anchor = buffer.anchor_after(insertion_point);
6870 edits.push((insertion_anchor..insertion_anchor, text));
6871
6872 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6873
6874 // Move selections down
6875 new_selections.extend(contiguous_row_selections.drain(..).map(
6876 |mut selection| {
6877 selection.start.row += row_delta;
6878 selection.end.row += row_delta;
6879 selection
6880 },
6881 ));
6882
6883 // Move folds down
6884 unfold_ranges.push(range_to_move.clone());
6885 for fold in display_map.folds_in_range(
6886 buffer.anchor_before(range_to_move.start)
6887 ..buffer.anchor_after(range_to_move.end),
6888 ) {
6889 let mut start = fold.range.start.to_point(&buffer);
6890 let mut end = fold.range.end.to_point(&buffer);
6891 start.row += row_delta;
6892 end.row += row_delta;
6893 refold_ranges.push((start..end, fold.placeholder.clone()));
6894 }
6895 }
6896 }
6897
6898 // If we didn't move line(s), preserve the existing selections
6899 new_selections.append(&mut contiguous_row_selections);
6900 }
6901
6902 self.transact(cx, |this, cx| {
6903 this.unfold_ranges(unfold_ranges, true, true, cx);
6904 this.buffer.update(cx, |buffer, cx| {
6905 for (range, text) in edits {
6906 buffer.edit([(range, text)], None, cx);
6907 }
6908 });
6909 this.fold_ranges(refold_ranges, true, cx);
6910 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6911 });
6912 }
6913
6914 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6915 let text_layout_details = &self.text_layout_details(cx);
6916 self.transact(cx, |this, cx| {
6917 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6918 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6919 let line_mode = s.line_mode;
6920 s.move_with(|display_map, selection| {
6921 if !selection.is_empty() || line_mode {
6922 return;
6923 }
6924
6925 let mut head = selection.head();
6926 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6927 if head.column() == display_map.line_len(head.row()) {
6928 transpose_offset = display_map
6929 .buffer_snapshot
6930 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6931 }
6932
6933 if transpose_offset == 0 {
6934 return;
6935 }
6936
6937 *head.column_mut() += 1;
6938 head = display_map.clip_point(head, Bias::Right);
6939 let goal = SelectionGoal::HorizontalPosition(
6940 display_map
6941 .x_for_display_point(head, text_layout_details)
6942 .into(),
6943 );
6944 selection.collapse_to(head, goal);
6945
6946 let transpose_start = display_map
6947 .buffer_snapshot
6948 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6949 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6950 let transpose_end = display_map
6951 .buffer_snapshot
6952 .clip_offset(transpose_offset + 1, Bias::Right);
6953 if let Some(ch) =
6954 display_map.buffer_snapshot.chars_at(transpose_start).next()
6955 {
6956 edits.push((transpose_start..transpose_offset, String::new()));
6957 edits.push((transpose_end..transpose_end, ch.to_string()));
6958 }
6959 }
6960 });
6961 edits
6962 });
6963 this.buffer
6964 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6965 let selections = this.selections.all::<usize>(cx);
6966 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6967 s.select(selections);
6968 });
6969 });
6970 }
6971
6972 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6973 self.rewrap_impl(true, cx)
6974 }
6975
6976 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6977 let buffer = self.buffer.read(cx).snapshot(cx);
6978 let selections = self.selections.all::<Point>(cx);
6979 let mut selections = selections.iter().peekable();
6980
6981 let mut edits = Vec::new();
6982 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6983
6984 while let Some(selection) = selections.next() {
6985 let mut start_row = selection.start.row;
6986 let mut end_row = selection.end.row;
6987
6988 // Skip selections that overlap with a range that has already been rewrapped.
6989 let selection_range = start_row..end_row;
6990 if rewrapped_row_ranges
6991 .iter()
6992 .any(|range| range.overlaps(&selection_range))
6993 {
6994 continue;
6995 }
6996
6997 let mut should_rewrap = !only_text;
6998
6999 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7000 match language_scope.language_name().0.as_ref() {
7001 "Markdown" | "Plain Text" => {
7002 should_rewrap = true;
7003 }
7004 _ => {}
7005 }
7006 }
7007
7008 // Since not all lines in the selection may be at the same indent
7009 // level, choose the indent size that is the most common between all
7010 // of the lines.
7011 //
7012 // If there is a tie, we use the deepest indent.
7013 let (indent_size, indent_end) = {
7014 let mut indent_size_occurrences = HashMap::default();
7015 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7016
7017 for row in start_row..=end_row {
7018 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7019 rows_by_indent_size.entry(indent).or_default().push(row);
7020 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7021 }
7022
7023 let indent_size = indent_size_occurrences
7024 .into_iter()
7025 .max_by_key(|(indent, count)| (*count, indent.len))
7026 .map(|(indent, _)| indent)
7027 .unwrap_or_default();
7028 let row = rows_by_indent_size[&indent_size][0];
7029 let indent_end = Point::new(row, indent_size.len);
7030
7031 (indent_size, indent_end)
7032 };
7033
7034 let mut line_prefix = indent_size.chars().collect::<String>();
7035
7036 if let Some(comment_prefix) =
7037 buffer
7038 .language_scope_at(selection.head())
7039 .and_then(|language| {
7040 language
7041 .line_comment_prefixes()
7042 .iter()
7043 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7044 .cloned()
7045 })
7046 {
7047 line_prefix.push_str(&comment_prefix);
7048 should_rewrap = true;
7049 }
7050
7051 if selection.is_empty() {
7052 'expand_upwards: while start_row > 0 {
7053 let prev_row = start_row - 1;
7054 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7055 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7056 {
7057 start_row = prev_row;
7058 } else {
7059 break 'expand_upwards;
7060 }
7061 }
7062
7063 'expand_downwards: while end_row < buffer.max_point().row {
7064 let next_row = end_row + 1;
7065 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7066 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7067 {
7068 end_row = next_row;
7069 } else {
7070 break 'expand_downwards;
7071 }
7072 }
7073 }
7074
7075 if !should_rewrap {
7076 continue;
7077 }
7078
7079 let start = Point::new(start_row, 0);
7080 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7081 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7082 let Some(lines_without_prefixes) = selection_text
7083 .lines()
7084 .map(|line| {
7085 line.strip_prefix(&line_prefix)
7086 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7087 .ok_or_else(|| {
7088 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7089 })
7090 })
7091 .collect::<Result<Vec<_>, _>>()
7092 .log_err()
7093 else {
7094 continue;
7095 };
7096
7097 let unwrapped_text = lines_without_prefixes.join(" ");
7098 let wrap_column = buffer
7099 .settings_at(Point::new(start_row, 0), cx)
7100 .preferred_line_length as usize;
7101 let mut wrapped_text = String::new();
7102 let mut current_line = line_prefix.clone();
7103 for word in unwrapped_text.split_whitespace() {
7104 if current_line.len() + word.len() >= wrap_column {
7105 wrapped_text.push_str(¤t_line);
7106 wrapped_text.push('\n');
7107 current_line.truncate(line_prefix.len());
7108 }
7109
7110 if current_line.len() > line_prefix.len() {
7111 current_line.push(' ');
7112 }
7113
7114 current_line.push_str(word);
7115 }
7116
7117 if !current_line.is_empty() {
7118 wrapped_text.push_str(¤t_line);
7119 }
7120
7121 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7122 let mut offset = start.to_offset(&buffer);
7123 let mut moved_since_edit = true;
7124
7125 for change in diff.iter_all_changes() {
7126 let value = change.value();
7127 match change.tag() {
7128 ChangeTag::Equal => {
7129 offset += value.len();
7130 moved_since_edit = true;
7131 }
7132 ChangeTag::Delete => {
7133 let start = buffer.anchor_after(offset);
7134 let end = buffer.anchor_before(offset + value.len());
7135
7136 if moved_since_edit {
7137 edits.push((start..end, String::new()));
7138 } else {
7139 edits.last_mut().unwrap().0.end = end;
7140 }
7141
7142 offset += value.len();
7143 moved_since_edit = false;
7144 }
7145 ChangeTag::Insert => {
7146 if moved_since_edit {
7147 let anchor = buffer.anchor_after(offset);
7148 edits.push((anchor..anchor, value.to_string()));
7149 } else {
7150 edits.last_mut().unwrap().1.push_str(value);
7151 }
7152
7153 moved_since_edit = false;
7154 }
7155 }
7156 }
7157
7158 rewrapped_row_ranges.push(start_row..=end_row);
7159 }
7160
7161 self.buffer
7162 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7163 }
7164
7165 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7166 let mut text = String::new();
7167 let buffer = self.buffer.read(cx).snapshot(cx);
7168 let mut selections = self.selections.all::<Point>(cx);
7169 let mut clipboard_selections = Vec::with_capacity(selections.len());
7170 {
7171 let max_point = buffer.max_point();
7172 let mut is_first = true;
7173 for selection in &mut selections {
7174 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7175 if is_entire_line {
7176 selection.start = Point::new(selection.start.row, 0);
7177 if !selection.is_empty() && selection.end.column == 0 {
7178 selection.end = cmp::min(max_point, selection.end);
7179 } else {
7180 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7181 }
7182 selection.goal = SelectionGoal::None;
7183 }
7184 if is_first {
7185 is_first = false;
7186 } else {
7187 text += "\n";
7188 }
7189 let mut len = 0;
7190 for chunk in buffer.text_for_range(selection.start..selection.end) {
7191 text.push_str(chunk);
7192 len += chunk.len();
7193 }
7194 clipboard_selections.push(ClipboardSelection {
7195 len,
7196 is_entire_line,
7197 first_line_indent: buffer
7198 .indent_size_for_line(MultiBufferRow(selection.start.row))
7199 .len,
7200 });
7201 }
7202 }
7203
7204 self.transact(cx, |this, cx| {
7205 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7206 s.select(selections);
7207 });
7208 this.insert("", cx);
7209 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7210 text,
7211 clipboard_selections,
7212 ));
7213 });
7214 }
7215
7216 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7217 let selections = self.selections.all::<Point>(cx);
7218 let buffer = self.buffer.read(cx).read(cx);
7219 let mut text = String::new();
7220
7221 let mut clipboard_selections = Vec::with_capacity(selections.len());
7222 {
7223 let max_point = buffer.max_point();
7224 let mut is_first = true;
7225 for selection in selections.iter() {
7226 let mut start = selection.start;
7227 let mut end = selection.end;
7228 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7229 if is_entire_line {
7230 start = Point::new(start.row, 0);
7231 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7232 }
7233 if is_first {
7234 is_first = false;
7235 } else {
7236 text += "\n";
7237 }
7238 let mut len = 0;
7239 for chunk in buffer.text_for_range(start..end) {
7240 text.push_str(chunk);
7241 len += chunk.len();
7242 }
7243 clipboard_selections.push(ClipboardSelection {
7244 len,
7245 is_entire_line,
7246 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7247 });
7248 }
7249 }
7250
7251 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7252 text,
7253 clipboard_selections,
7254 ));
7255 }
7256
7257 pub fn do_paste(
7258 &mut self,
7259 text: &String,
7260 clipboard_selections: Option<Vec<ClipboardSelection>>,
7261 handle_entire_lines: bool,
7262 cx: &mut ViewContext<Self>,
7263 ) {
7264 if self.read_only(cx) {
7265 return;
7266 }
7267
7268 let clipboard_text = Cow::Borrowed(text);
7269
7270 self.transact(cx, |this, cx| {
7271 if let Some(mut clipboard_selections) = clipboard_selections {
7272 let old_selections = this.selections.all::<usize>(cx);
7273 let all_selections_were_entire_line =
7274 clipboard_selections.iter().all(|s| s.is_entire_line);
7275 let first_selection_indent_column =
7276 clipboard_selections.first().map(|s| s.first_line_indent);
7277 if clipboard_selections.len() != old_selections.len() {
7278 clipboard_selections.drain(..);
7279 }
7280
7281 this.buffer.update(cx, |buffer, cx| {
7282 let snapshot = buffer.read(cx);
7283 let mut start_offset = 0;
7284 let mut edits = Vec::new();
7285 let mut original_indent_columns = Vec::new();
7286 for (ix, selection) in old_selections.iter().enumerate() {
7287 let to_insert;
7288 let entire_line;
7289 let original_indent_column;
7290 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7291 let end_offset = start_offset + clipboard_selection.len;
7292 to_insert = &clipboard_text[start_offset..end_offset];
7293 entire_line = clipboard_selection.is_entire_line;
7294 start_offset = end_offset + 1;
7295 original_indent_column = Some(clipboard_selection.first_line_indent);
7296 } else {
7297 to_insert = clipboard_text.as_str();
7298 entire_line = all_selections_were_entire_line;
7299 original_indent_column = first_selection_indent_column
7300 }
7301
7302 // If the corresponding selection was empty when this slice of the
7303 // clipboard text was written, then the entire line containing the
7304 // selection was copied. If this selection is also currently empty,
7305 // then paste the line before the current line of the buffer.
7306 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7307 let column = selection.start.to_point(&snapshot).column as usize;
7308 let line_start = selection.start - column;
7309 line_start..line_start
7310 } else {
7311 selection.range()
7312 };
7313
7314 edits.push((range, to_insert));
7315 original_indent_columns.extend(original_indent_column);
7316 }
7317 drop(snapshot);
7318
7319 buffer.edit(
7320 edits,
7321 Some(AutoindentMode::Block {
7322 original_indent_columns,
7323 }),
7324 cx,
7325 );
7326 });
7327
7328 let selections = this.selections.all::<usize>(cx);
7329 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7330 } else {
7331 this.insert(&clipboard_text, cx);
7332 }
7333 });
7334 }
7335
7336 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7337 if let Some(item) = cx.read_from_clipboard() {
7338 let entries = item.entries();
7339
7340 match entries.first() {
7341 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7342 // of all the pasted entries.
7343 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7344 .do_paste(
7345 clipboard_string.text(),
7346 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7347 true,
7348 cx,
7349 ),
7350 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7351 }
7352 }
7353 }
7354
7355 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7356 if self.read_only(cx) {
7357 return;
7358 }
7359
7360 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7361 if let Some((selections, _)) =
7362 self.selection_history.transaction(transaction_id).cloned()
7363 {
7364 self.change_selections(None, cx, |s| {
7365 s.select_anchors(selections.to_vec());
7366 });
7367 }
7368 self.request_autoscroll(Autoscroll::fit(), cx);
7369 self.unmark_text(cx);
7370 self.refresh_inline_completion(true, false, cx);
7371 cx.emit(EditorEvent::Edited { transaction_id });
7372 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7373 }
7374 }
7375
7376 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7377 if self.read_only(cx) {
7378 return;
7379 }
7380
7381 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7382 if let Some((_, Some(selections))) =
7383 self.selection_history.transaction(transaction_id).cloned()
7384 {
7385 self.change_selections(None, cx, |s| {
7386 s.select_anchors(selections.to_vec());
7387 });
7388 }
7389 self.request_autoscroll(Autoscroll::fit(), cx);
7390 self.unmark_text(cx);
7391 self.refresh_inline_completion(true, false, cx);
7392 cx.emit(EditorEvent::Edited { transaction_id });
7393 }
7394 }
7395
7396 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7397 self.buffer
7398 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7399 }
7400
7401 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7402 self.buffer
7403 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7404 }
7405
7406 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7407 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7408 let line_mode = s.line_mode;
7409 s.move_with(|map, selection| {
7410 let cursor = if selection.is_empty() && !line_mode {
7411 movement::left(map, selection.start)
7412 } else {
7413 selection.start
7414 };
7415 selection.collapse_to(cursor, SelectionGoal::None);
7416 });
7417 })
7418 }
7419
7420 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7421 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7422 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7423 })
7424 }
7425
7426 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7427 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7428 let line_mode = s.line_mode;
7429 s.move_with(|map, selection| {
7430 let cursor = if selection.is_empty() && !line_mode {
7431 movement::right(map, selection.end)
7432 } else {
7433 selection.end
7434 };
7435 selection.collapse_to(cursor, SelectionGoal::None)
7436 });
7437 })
7438 }
7439
7440 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7441 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7442 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7443 })
7444 }
7445
7446 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7447 if self.take_rename(true, cx).is_some() {
7448 return;
7449 }
7450
7451 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7452 cx.propagate();
7453 return;
7454 }
7455
7456 let text_layout_details = &self.text_layout_details(cx);
7457 let selection_count = self.selections.count();
7458 let first_selection = self.selections.first_anchor();
7459
7460 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7461 let line_mode = s.line_mode;
7462 s.move_with(|map, selection| {
7463 if !selection.is_empty() && !line_mode {
7464 selection.goal = SelectionGoal::None;
7465 }
7466 let (cursor, goal) = movement::up(
7467 map,
7468 selection.start,
7469 selection.goal,
7470 false,
7471 text_layout_details,
7472 );
7473 selection.collapse_to(cursor, goal);
7474 });
7475 });
7476
7477 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7478 {
7479 cx.propagate();
7480 }
7481 }
7482
7483 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7484 if self.take_rename(true, cx).is_some() {
7485 return;
7486 }
7487
7488 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7489 cx.propagate();
7490 return;
7491 }
7492
7493 let text_layout_details = &self.text_layout_details(cx);
7494
7495 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7496 let line_mode = s.line_mode;
7497 s.move_with(|map, selection| {
7498 if !selection.is_empty() && !line_mode {
7499 selection.goal = SelectionGoal::None;
7500 }
7501 let (cursor, goal) = movement::up_by_rows(
7502 map,
7503 selection.start,
7504 action.lines,
7505 selection.goal,
7506 false,
7507 text_layout_details,
7508 );
7509 selection.collapse_to(cursor, goal);
7510 });
7511 })
7512 }
7513
7514 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7515 if self.take_rename(true, cx).is_some() {
7516 return;
7517 }
7518
7519 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7520 cx.propagate();
7521 return;
7522 }
7523
7524 let text_layout_details = &self.text_layout_details(cx);
7525
7526 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7527 let line_mode = s.line_mode;
7528 s.move_with(|map, selection| {
7529 if !selection.is_empty() && !line_mode {
7530 selection.goal = SelectionGoal::None;
7531 }
7532 let (cursor, goal) = movement::down_by_rows(
7533 map,
7534 selection.start,
7535 action.lines,
7536 selection.goal,
7537 false,
7538 text_layout_details,
7539 );
7540 selection.collapse_to(cursor, goal);
7541 });
7542 })
7543 }
7544
7545 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7546 let text_layout_details = &self.text_layout_details(cx);
7547 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7548 s.move_heads_with(|map, head, goal| {
7549 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7550 })
7551 })
7552 }
7553
7554 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7555 let text_layout_details = &self.text_layout_details(cx);
7556 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7557 s.move_heads_with(|map, head, goal| {
7558 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7559 })
7560 })
7561 }
7562
7563 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7564 let Some(row_count) = self.visible_row_count() else {
7565 return;
7566 };
7567
7568 let text_layout_details = &self.text_layout_details(cx);
7569
7570 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7571 s.move_heads_with(|map, head, goal| {
7572 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7573 })
7574 })
7575 }
7576
7577 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7578 if self.take_rename(true, cx).is_some() {
7579 return;
7580 }
7581
7582 if self
7583 .context_menu
7584 .write()
7585 .as_mut()
7586 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7587 .unwrap_or(false)
7588 {
7589 return;
7590 }
7591
7592 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7593 cx.propagate();
7594 return;
7595 }
7596
7597 let Some(row_count) = self.visible_row_count() else {
7598 return;
7599 };
7600
7601 let autoscroll = if action.center_cursor {
7602 Autoscroll::center()
7603 } else {
7604 Autoscroll::fit()
7605 };
7606
7607 let text_layout_details = &self.text_layout_details(cx);
7608
7609 self.change_selections(Some(autoscroll), cx, |s| {
7610 let line_mode = s.line_mode;
7611 s.move_with(|map, selection| {
7612 if !selection.is_empty() && !line_mode {
7613 selection.goal = SelectionGoal::None;
7614 }
7615 let (cursor, goal) = movement::up_by_rows(
7616 map,
7617 selection.end,
7618 row_count,
7619 selection.goal,
7620 false,
7621 text_layout_details,
7622 );
7623 selection.collapse_to(cursor, goal);
7624 });
7625 });
7626 }
7627
7628 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7629 let text_layout_details = &self.text_layout_details(cx);
7630 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7631 s.move_heads_with(|map, head, goal| {
7632 movement::up(map, head, goal, false, text_layout_details)
7633 })
7634 })
7635 }
7636
7637 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7638 self.take_rename(true, cx);
7639
7640 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7641 cx.propagate();
7642 return;
7643 }
7644
7645 let text_layout_details = &self.text_layout_details(cx);
7646 let selection_count = self.selections.count();
7647 let first_selection = self.selections.first_anchor();
7648
7649 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7650 let line_mode = s.line_mode;
7651 s.move_with(|map, selection| {
7652 if !selection.is_empty() && !line_mode {
7653 selection.goal = SelectionGoal::None;
7654 }
7655 let (cursor, goal) = movement::down(
7656 map,
7657 selection.end,
7658 selection.goal,
7659 false,
7660 text_layout_details,
7661 );
7662 selection.collapse_to(cursor, goal);
7663 });
7664 });
7665
7666 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7667 {
7668 cx.propagate();
7669 }
7670 }
7671
7672 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7673 let Some(row_count) = self.visible_row_count() else {
7674 return;
7675 };
7676
7677 let text_layout_details = &self.text_layout_details(cx);
7678
7679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7680 s.move_heads_with(|map, head, goal| {
7681 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7682 })
7683 })
7684 }
7685
7686 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7687 if self.take_rename(true, cx).is_some() {
7688 return;
7689 }
7690
7691 if self
7692 .context_menu
7693 .write()
7694 .as_mut()
7695 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7696 .unwrap_or(false)
7697 {
7698 return;
7699 }
7700
7701 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7702 cx.propagate();
7703 return;
7704 }
7705
7706 let Some(row_count) = self.visible_row_count() else {
7707 return;
7708 };
7709
7710 let autoscroll = if action.center_cursor {
7711 Autoscroll::center()
7712 } else {
7713 Autoscroll::fit()
7714 };
7715
7716 let text_layout_details = &self.text_layout_details(cx);
7717 self.change_selections(Some(autoscroll), cx, |s| {
7718 let line_mode = s.line_mode;
7719 s.move_with(|map, selection| {
7720 if !selection.is_empty() && !line_mode {
7721 selection.goal = SelectionGoal::None;
7722 }
7723 let (cursor, goal) = movement::down_by_rows(
7724 map,
7725 selection.end,
7726 row_count,
7727 selection.goal,
7728 false,
7729 text_layout_details,
7730 );
7731 selection.collapse_to(cursor, goal);
7732 });
7733 });
7734 }
7735
7736 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7737 let text_layout_details = &self.text_layout_details(cx);
7738 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7739 s.move_heads_with(|map, head, goal| {
7740 movement::down(map, head, goal, false, text_layout_details)
7741 })
7742 });
7743 }
7744
7745 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7746 if let Some(context_menu) = self.context_menu.write().as_mut() {
7747 context_menu.select_first(self.completion_provider.as_deref(), cx);
7748 }
7749 }
7750
7751 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7752 if let Some(context_menu) = self.context_menu.write().as_mut() {
7753 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7754 }
7755 }
7756
7757 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7758 if let Some(context_menu) = self.context_menu.write().as_mut() {
7759 context_menu.select_next(self.completion_provider.as_deref(), cx);
7760 }
7761 }
7762
7763 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7764 if let Some(context_menu) = self.context_menu.write().as_mut() {
7765 context_menu.select_last(self.completion_provider.as_deref(), cx);
7766 }
7767 }
7768
7769 pub fn move_to_previous_word_start(
7770 &mut self,
7771 _: &MoveToPreviousWordStart,
7772 cx: &mut ViewContext<Self>,
7773 ) {
7774 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7775 s.move_cursors_with(|map, head, _| {
7776 (
7777 movement::previous_word_start(map, head),
7778 SelectionGoal::None,
7779 )
7780 });
7781 })
7782 }
7783
7784 pub fn move_to_previous_subword_start(
7785 &mut self,
7786 _: &MoveToPreviousSubwordStart,
7787 cx: &mut ViewContext<Self>,
7788 ) {
7789 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7790 s.move_cursors_with(|map, head, _| {
7791 (
7792 movement::previous_subword_start(map, head),
7793 SelectionGoal::None,
7794 )
7795 });
7796 })
7797 }
7798
7799 pub fn select_to_previous_word_start(
7800 &mut self,
7801 _: &SelectToPreviousWordStart,
7802 cx: &mut ViewContext<Self>,
7803 ) {
7804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7805 s.move_heads_with(|map, head, _| {
7806 (
7807 movement::previous_word_start(map, head),
7808 SelectionGoal::None,
7809 )
7810 });
7811 })
7812 }
7813
7814 pub fn select_to_previous_subword_start(
7815 &mut self,
7816 _: &SelectToPreviousSubwordStart,
7817 cx: &mut ViewContext<Self>,
7818 ) {
7819 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7820 s.move_heads_with(|map, head, _| {
7821 (
7822 movement::previous_subword_start(map, head),
7823 SelectionGoal::None,
7824 )
7825 });
7826 })
7827 }
7828
7829 pub fn delete_to_previous_word_start(
7830 &mut self,
7831 action: &DeleteToPreviousWordStart,
7832 cx: &mut ViewContext<Self>,
7833 ) {
7834 self.transact(cx, |this, cx| {
7835 this.select_autoclose_pair(cx);
7836 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7837 let line_mode = s.line_mode;
7838 s.move_with(|map, selection| {
7839 if selection.is_empty() && !line_mode {
7840 let cursor = if action.ignore_newlines {
7841 movement::previous_word_start(map, selection.head())
7842 } else {
7843 movement::previous_word_start_or_newline(map, selection.head())
7844 };
7845 selection.set_head(cursor, SelectionGoal::None);
7846 }
7847 });
7848 });
7849 this.insert("", cx);
7850 });
7851 }
7852
7853 pub fn delete_to_previous_subword_start(
7854 &mut self,
7855 _: &DeleteToPreviousSubwordStart,
7856 cx: &mut ViewContext<Self>,
7857 ) {
7858 self.transact(cx, |this, cx| {
7859 this.select_autoclose_pair(cx);
7860 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7861 let line_mode = s.line_mode;
7862 s.move_with(|map, selection| {
7863 if selection.is_empty() && !line_mode {
7864 let cursor = movement::previous_subword_start(map, selection.head());
7865 selection.set_head(cursor, SelectionGoal::None);
7866 }
7867 });
7868 });
7869 this.insert("", cx);
7870 });
7871 }
7872
7873 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7874 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7875 s.move_cursors_with(|map, head, _| {
7876 (movement::next_word_end(map, head), SelectionGoal::None)
7877 });
7878 })
7879 }
7880
7881 pub fn move_to_next_subword_end(
7882 &mut self,
7883 _: &MoveToNextSubwordEnd,
7884 cx: &mut ViewContext<Self>,
7885 ) {
7886 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7887 s.move_cursors_with(|map, head, _| {
7888 (movement::next_subword_end(map, head), SelectionGoal::None)
7889 });
7890 })
7891 }
7892
7893 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7894 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7895 s.move_heads_with(|map, head, _| {
7896 (movement::next_word_end(map, head), SelectionGoal::None)
7897 });
7898 })
7899 }
7900
7901 pub fn select_to_next_subword_end(
7902 &mut self,
7903 _: &SelectToNextSubwordEnd,
7904 cx: &mut ViewContext<Self>,
7905 ) {
7906 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7907 s.move_heads_with(|map, head, _| {
7908 (movement::next_subword_end(map, head), SelectionGoal::None)
7909 });
7910 })
7911 }
7912
7913 pub fn delete_to_next_word_end(
7914 &mut self,
7915 action: &DeleteToNextWordEnd,
7916 cx: &mut ViewContext<Self>,
7917 ) {
7918 self.transact(cx, |this, cx| {
7919 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7920 let line_mode = s.line_mode;
7921 s.move_with(|map, selection| {
7922 if selection.is_empty() && !line_mode {
7923 let cursor = if action.ignore_newlines {
7924 movement::next_word_end(map, selection.head())
7925 } else {
7926 movement::next_word_end_or_newline(map, selection.head())
7927 };
7928 selection.set_head(cursor, SelectionGoal::None);
7929 }
7930 });
7931 });
7932 this.insert("", cx);
7933 });
7934 }
7935
7936 pub fn delete_to_next_subword_end(
7937 &mut self,
7938 _: &DeleteToNextSubwordEnd,
7939 cx: &mut ViewContext<Self>,
7940 ) {
7941 self.transact(cx, |this, cx| {
7942 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7943 s.move_with(|map, selection| {
7944 if selection.is_empty() {
7945 let cursor = movement::next_subword_end(map, selection.head());
7946 selection.set_head(cursor, SelectionGoal::None);
7947 }
7948 });
7949 });
7950 this.insert("", cx);
7951 });
7952 }
7953
7954 pub fn move_to_beginning_of_line(
7955 &mut self,
7956 action: &MoveToBeginningOfLine,
7957 cx: &mut ViewContext<Self>,
7958 ) {
7959 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7960 s.move_cursors_with(|map, head, _| {
7961 (
7962 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7963 SelectionGoal::None,
7964 )
7965 });
7966 })
7967 }
7968
7969 pub fn select_to_beginning_of_line(
7970 &mut self,
7971 action: &SelectToBeginningOfLine,
7972 cx: &mut ViewContext<Self>,
7973 ) {
7974 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7975 s.move_heads_with(|map, head, _| {
7976 (
7977 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7978 SelectionGoal::None,
7979 )
7980 });
7981 });
7982 }
7983
7984 pub fn delete_to_beginning_of_line(
7985 &mut self,
7986 _: &DeleteToBeginningOfLine,
7987 cx: &mut ViewContext<Self>,
7988 ) {
7989 self.transact(cx, |this, cx| {
7990 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7991 s.move_with(|_, selection| {
7992 selection.reversed = true;
7993 });
7994 });
7995
7996 this.select_to_beginning_of_line(
7997 &SelectToBeginningOfLine {
7998 stop_at_soft_wraps: false,
7999 },
8000 cx,
8001 );
8002 this.backspace(&Backspace, cx);
8003 });
8004 }
8005
8006 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8007 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8008 s.move_cursors_with(|map, head, _| {
8009 (
8010 movement::line_end(map, head, action.stop_at_soft_wraps),
8011 SelectionGoal::None,
8012 )
8013 });
8014 })
8015 }
8016
8017 pub fn select_to_end_of_line(
8018 &mut self,
8019 action: &SelectToEndOfLine,
8020 cx: &mut ViewContext<Self>,
8021 ) {
8022 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8023 s.move_heads_with(|map, head, _| {
8024 (
8025 movement::line_end(map, head, action.stop_at_soft_wraps),
8026 SelectionGoal::None,
8027 )
8028 });
8029 })
8030 }
8031
8032 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8033 self.transact(cx, |this, cx| {
8034 this.select_to_end_of_line(
8035 &SelectToEndOfLine {
8036 stop_at_soft_wraps: false,
8037 },
8038 cx,
8039 );
8040 this.delete(&Delete, cx);
8041 });
8042 }
8043
8044 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8045 self.transact(cx, |this, cx| {
8046 this.select_to_end_of_line(
8047 &SelectToEndOfLine {
8048 stop_at_soft_wraps: false,
8049 },
8050 cx,
8051 );
8052 this.cut(&Cut, cx);
8053 });
8054 }
8055
8056 pub fn move_to_start_of_paragraph(
8057 &mut self,
8058 _: &MoveToStartOfParagraph,
8059 cx: &mut ViewContext<Self>,
8060 ) {
8061 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8062 cx.propagate();
8063 return;
8064 }
8065
8066 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8067 s.move_with(|map, selection| {
8068 selection.collapse_to(
8069 movement::start_of_paragraph(map, selection.head(), 1),
8070 SelectionGoal::None,
8071 )
8072 });
8073 })
8074 }
8075
8076 pub fn move_to_end_of_paragraph(
8077 &mut self,
8078 _: &MoveToEndOfParagraph,
8079 cx: &mut ViewContext<Self>,
8080 ) {
8081 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8082 cx.propagate();
8083 return;
8084 }
8085
8086 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8087 s.move_with(|map, selection| {
8088 selection.collapse_to(
8089 movement::end_of_paragraph(map, selection.head(), 1),
8090 SelectionGoal::None,
8091 )
8092 });
8093 })
8094 }
8095
8096 pub fn select_to_start_of_paragraph(
8097 &mut self,
8098 _: &SelectToStartOfParagraph,
8099 cx: &mut ViewContext<Self>,
8100 ) {
8101 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8102 cx.propagate();
8103 return;
8104 }
8105
8106 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8107 s.move_heads_with(|map, head, _| {
8108 (
8109 movement::start_of_paragraph(map, head, 1),
8110 SelectionGoal::None,
8111 )
8112 });
8113 })
8114 }
8115
8116 pub fn select_to_end_of_paragraph(
8117 &mut self,
8118 _: &SelectToEndOfParagraph,
8119 cx: &mut ViewContext<Self>,
8120 ) {
8121 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8122 cx.propagate();
8123 return;
8124 }
8125
8126 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8127 s.move_heads_with(|map, head, _| {
8128 (
8129 movement::end_of_paragraph(map, head, 1),
8130 SelectionGoal::None,
8131 )
8132 });
8133 })
8134 }
8135
8136 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8137 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8138 cx.propagate();
8139 return;
8140 }
8141
8142 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8143 s.select_ranges(vec![0..0]);
8144 });
8145 }
8146
8147 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8148 let mut selection = self.selections.last::<Point>(cx);
8149 selection.set_head(Point::zero(), SelectionGoal::None);
8150
8151 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8152 s.select(vec![selection]);
8153 });
8154 }
8155
8156 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8157 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8158 cx.propagate();
8159 return;
8160 }
8161
8162 let cursor = self.buffer.read(cx).read(cx).len();
8163 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8164 s.select_ranges(vec![cursor..cursor])
8165 });
8166 }
8167
8168 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8169 self.nav_history = nav_history;
8170 }
8171
8172 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8173 self.nav_history.as_ref()
8174 }
8175
8176 fn push_to_nav_history(
8177 &mut self,
8178 cursor_anchor: Anchor,
8179 new_position: Option<Point>,
8180 cx: &mut ViewContext<Self>,
8181 ) {
8182 if let Some(nav_history) = self.nav_history.as_mut() {
8183 let buffer = self.buffer.read(cx).read(cx);
8184 let cursor_position = cursor_anchor.to_point(&buffer);
8185 let scroll_state = self.scroll_manager.anchor();
8186 let scroll_top_row = scroll_state.top_row(&buffer);
8187 drop(buffer);
8188
8189 if let Some(new_position) = new_position {
8190 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8191 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8192 return;
8193 }
8194 }
8195
8196 nav_history.push(
8197 Some(NavigationData {
8198 cursor_anchor,
8199 cursor_position,
8200 scroll_anchor: scroll_state,
8201 scroll_top_row,
8202 }),
8203 cx,
8204 );
8205 }
8206 }
8207
8208 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8209 let buffer = self.buffer.read(cx).snapshot(cx);
8210 let mut selection = self.selections.first::<usize>(cx);
8211 selection.set_head(buffer.len(), SelectionGoal::None);
8212 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8213 s.select(vec![selection]);
8214 });
8215 }
8216
8217 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8218 let end = self.buffer.read(cx).read(cx).len();
8219 self.change_selections(None, cx, |s| {
8220 s.select_ranges(vec![0..end]);
8221 });
8222 }
8223
8224 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8225 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8226 let mut selections = self.selections.all::<Point>(cx);
8227 let max_point = display_map.buffer_snapshot.max_point();
8228 for selection in &mut selections {
8229 let rows = selection.spanned_rows(true, &display_map);
8230 selection.start = Point::new(rows.start.0, 0);
8231 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8232 selection.reversed = false;
8233 }
8234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8235 s.select(selections);
8236 });
8237 }
8238
8239 pub fn split_selection_into_lines(
8240 &mut self,
8241 _: &SplitSelectionIntoLines,
8242 cx: &mut ViewContext<Self>,
8243 ) {
8244 let mut to_unfold = Vec::new();
8245 let mut new_selection_ranges = Vec::new();
8246 {
8247 let selections = self.selections.all::<Point>(cx);
8248 let buffer = self.buffer.read(cx).read(cx);
8249 for selection in selections {
8250 for row in selection.start.row..selection.end.row {
8251 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8252 new_selection_ranges.push(cursor..cursor);
8253 }
8254 new_selection_ranges.push(selection.end..selection.end);
8255 to_unfold.push(selection.start..selection.end);
8256 }
8257 }
8258 self.unfold_ranges(to_unfold, true, true, cx);
8259 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8260 s.select_ranges(new_selection_ranges);
8261 });
8262 }
8263
8264 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8265 self.add_selection(true, cx);
8266 }
8267
8268 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8269 self.add_selection(false, cx);
8270 }
8271
8272 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8273 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8274 let mut selections = self.selections.all::<Point>(cx);
8275 let text_layout_details = self.text_layout_details(cx);
8276 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8277 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8278 let range = oldest_selection.display_range(&display_map).sorted();
8279
8280 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8281 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8282 let positions = start_x.min(end_x)..start_x.max(end_x);
8283
8284 selections.clear();
8285 let mut stack = Vec::new();
8286 for row in range.start.row().0..=range.end.row().0 {
8287 if let Some(selection) = self.selections.build_columnar_selection(
8288 &display_map,
8289 DisplayRow(row),
8290 &positions,
8291 oldest_selection.reversed,
8292 &text_layout_details,
8293 ) {
8294 stack.push(selection.id);
8295 selections.push(selection);
8296 }
8297 }
8298
8299 if above {
8300 stack.reverse();
8301 }
8302
8303 AddSelectionsState { above, stack }
8304 });
8305
8306 let last_added_selection = *state.stack.last().unwrap();
8307 let mut new_selections = Vec::new();
8308 if above == state.above {
8309 let end_row = if above {
8310 DisplayRow(0)
8311 } else {
8312 display_map.max_point().row()
8313 };
8314
8315 'outer: for selection in selections {
8316 if selection.id == last_added_selection {
8317 let range = selection.display_range(&display_map).sorted();
8318 debug_assert_eq!(range.start.row(), range.end.row());
8319 let mut row = range.start.row();
8320 let positions =
8321 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8322 px(start)..px(end)
8323 } else {
8324 let start_x =
8325 display_map.x_for_display_point(range.start, &text_layout_details);
8326 let end_x =
8327 display_map.x_for_display_point(range.end, &text_layout_details);
8328 start_x.min(end_x)..start_x.max(end_x)
8329 };
8330
8331 while row != end_row {
8332 if above {
8333 row.0 -= 1;
8334 } else {
8335 row.0 += 1;
8336 }
8337
8338 if let Some(new_selection) = self.selections.build_columnar_selection(
8339 &display_map,
8340 row,
8341 &positions,
8342 selection.reversed,
8343 &text_layout_details,
8344 ) {
8345 state.stack.push(new_selection.id);
8346 if above {
8347 new_selections.push(new_selection);
8348 new_selections.push(selection);
8349 } else {
8350 new_selections.push(selection);
8351 new_selections.push(new_selection);
8352 }
8353
8354 continue 'outer;
8355 }
8356 }
8357 }
8358
8359 new_selections.push(selection);
8360 }
8361 } else {
8362 new_selections = selections;
8363 new_selections.retain(|s| s.id != last_added_selection);
8364 state.stack.pop();
8365 }
8366
8367 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8368 s.select(new_selections);
8369 });
8370 if state.stack.len() > 1 {
8371 self.add_selections_state = Some(state);
8372 }
8373 }
8374
8375 pub fn select_next_match_internal(
8376 &mut self,
8377 display_map: &DisplaySnapshot,
8378 replace_newest: bool,
8379 autoscroll: Option<Autoscroll>,
8380 cx: &mut ViewContext<Self>,
8381 ) -> Result<()> {
8382 fn select_next_match_ranges(
8383 this: &mut Editor,
8384 range: Range<usize>,
8385 replace_newest: bool,
8386 auto_scroll: Option<Autoscroll>,
8387 cx: &mut ViewContext<Editor>,
8388 ) {
8389 this.unfold_ranges([range.clone()], false, true, cx);
8390 this.change_selections(auto_scroll, cx, |s| {
8391 if replace_newest {
8392 s.delete(s.newest_anchor().id);
8393 }
8394 s.insert_range(range.clone());
8395 });
8396 }
8397
8398 let buffer = &display_map.buffer_snapshot;
8399 let mut selections = self.selections.all::<usize>(cx);
8400 if let Some(mut select_next_state) = self.select_next_state.take() {
8401 let query = &select_next_state.query;
8402 if !select_next_state.done {
8403 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8404 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8405 let mut next_selected_range = None;
8406
8407 let bytes_after_last_selection =
8408 buffer.bytes_in_range(last_selection.end..buffer.len());
8409 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8410 let query_matches = query
8411 .stream_find_iter(bytes_after_last_selection)
8412 .map(|result| (last_selection.end, result))
8413 .chain(
8414 query
8415 .stream_find_iter(bytes_before_first_selection)
8416 .map(|result| (0, result)),
8417 );
8418
8419 for (start_offset, query_match) in query_matches {
8420 let query_match = query_match.unwrap(); // can only fail due to I/O
8421 let offset_range =
8422 start_offset + query_match.start()..start_offset + query_match.end();
8423 let display_range = offset_range.start.to_display_point(display_map)
8424 ..offset_range.end.to_display_point(display_map);
8425
8426 if !select_next_state.wordwise
8427 || (!movement::is_inside_word(display_map, display_range.start)
8428 && !movement::is_inside_word(display_map, display_range.end))
8429 {
8430 // TODO: This is n^2, because we might check all the selections
8431 if !selections
8432 .iter()
8433 .any(|selection| selection.range().overlaps(&offset_range))
8434 {
8435 next_selected_range = Some(offset_range);
8436 break;
8437 }
8438 }
8439 }
8440
8441 if let Some(next_selected_range) = next_selected_range {
8442 select_next_match_ranges(
8443 self,
8444 next_selected_range,
8445 replace_newest,
8446 autoscroll,
8447 cx,
8448 );
8449 } else {
8450 select_next_state.done = true;
8451 }
8452 }
8453
8454 self.select_next_state = Some(select_next_state);
8455 } else {
8456 let mut only_carets = true;
8457 let mut same_text_selected = true;
8458 let mut selected_text = None;
8459
8460 let mut selections_iter = selections.iter().peekable();
8461 while let Some(selection) = selections_iter.next() {
8462 if selection.start != selection.end {
8463 only_carets = false;
8464 }
8465
8466 if same_text_selected {
8467 if selected_text.is_none() {
8468 selected_text =
8469 Some(buffer.text_for_range(selection.range()).collect::<String>());
8470 }
8471
8472 if let Some(next_selection) = selections_iter.peek() {
8473 if next_selection.range().len() == selection.range().len() {
8474 let next_selected_text = buffer
8475 .text_for_range(next_selection.range())
8476 .collect::<String>();
8477 if Some(next_selected_text) != selected_text {
8478 same_text_selected = false;
8479 selected_text = None;
8480 }
8481 } else {
8482 same_text_selected = false;
8483 selected_text = None;
8484 }
8485 }
8486 }
8487 }
8488
8489 if only_carets {
8490 for selection in &mut selections {
8491 let word_range = movement::surrounding_word(
8492 display_map,
8493 selection.start.to_display_point(display_map),
8494 );
8495 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8496 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8497 selection.goal = SelectionGoal::None;
8498 selection.reversed = false;
8499 select_next_match_ranges(
8500 self,
8501 selection.start..selection.end,
8502 replace_newest,
8503 autoscroll,
8504 cx,
8505 );
8506 }
8507
8508 if selections.len() == 1 {
8509 let selection = selections
8510 .last()
8511 .expect("ensured that there's only one selection");
8512 let query = buffer
8513 .text_for_range(selection.start..selection.end)
8514 .collect::<String>();
8515 let is_empty = query.is_empty();
8516 let select_state = SelectNextState {
8517 query: AhoCorasick::new(&[query])?,
8518 wordwise: true,
8519 done: is_empty,
8520 };
8521 self.select_next_state = Some(select_state);
8522 } else {
8523 self.select_next_state = None;
8524 }
8525 } else if let Some(selected_text) = selected_text {
8526 self.select_next_state = Some(SelectNextState {
8527 query: AhoCorasick::new(&[selected_text])?,
8528 wordwise: false,
8529 done: false,
8530 });
8531 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8532 }
8533 }
8534 Ok(())
8535 }
8536
8537 pub fn select_all_matches(
8538 &mut self,
8539 _action: &SelectAllMatches,
8540 cx: &mut ViewContext<Self>,
8541 ) -> Result<()> {
8542 self.push_to_selection_history();
8543 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8544
8545 self.select_next_match_internal(&display_map, false, None, cx)?;
8546 let Some(select_next_state) = self.select_next_state.as_mut() else {
8547 return Ok(());
8548 };
8549 if select_next_state.done {
8550 return Ok(());
8551 }
8552
8553 let mut new_selections = self.selections.all::<usize>(cx);
8554
8555 let buffer = &display_map.buffer_snapshot;
8556 let query_matches = select_next_state
8557 .query
8558 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8559
8560 for query_match in query_matches {
8561 let query_match = query_match.unwrap(); // can only fail due to I/O
8562 let offset_range = query_match.start()..query_match.end();
8563 let display_range = offset_range.start.to_display_point(&display_map)
8564 ..offset_range.end.to_display_point(&display_map);
8565
8566 if !select_next_state.wordwise
8567 || (!movement::is_inside_word(&display_map, display_range.start)
8568 && !movement::is_inside_word(&display_map, display_range.end))
8569 {
8570 self.selections.change_with(cx, |selections| {
8571 new_selections.push(Selection {
8572 id: selections.new_selection_id(),
8573 start: offset_range.start,
8574 end: offset_range.end,
8575 reversed: false,
8576 goal: SelectionGoal::None,
8577 });
8578 });
8579 }
8580 }
8581
8582 new_selections.sort_by_key(|selection| selection.start);
8583 let mut ix = 0;
8584 while ix + 1 < new_selections.len() {
8585 let current_selection = &new_selections[ix];
8586 let next_selection = &new_selections[ix + 1];
8587 if current_selection.range().overlaps(&next_selection.range()) {
8588 if current_selection.id < next_selection.id {
8589 new_selections.remove(ix + 1);
8590 } else {
8591 new_selections.remove(ix);
8592 }
8593 } else {
8594 ix += 1;
8595 }
8596 }
8597
8598 select_next_state.done = true;
8599 self.unfold_ranges(
8600 new_selections.iter().map(|selection| selection.range()),
8601 false,
8602 false,
8603 cx,
8604 );
8605 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8606 selections.select(new_selections)
8607 });
8608
8609 Ok(())
8610 }
8611
8612 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8613 self.push_to_selection_history();
8614 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8615 self.select_next_match_internal(
8616 &display_map,
8617 action.replace_newest,
8618 Some(Autoscroll::newest()),
8619 cx,
8620 )?;
8621 Ok(())
8622 }
8623
8624 pub fn select_previous(
8625 &mut self,
8626 action: &SelectPrevious,
8627 cx: &mut ViewContext<Self>,
8628 ) -> Result<()> {
8629 self.push_to_selection_history();
8630 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8631 let buffer = &display_map.buffer_snapshot;
8632 let mut selections = self.selections.all::<usize>(cx);
8633 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8634 let query = &select_prev_state.query;
8635 if !select_prev_state.done {
8636 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8637 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8638 let mut next_selected_range = None;
8639 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8640 let bytes_before_last_selection =
8641 buffer.reversed_bytes_in_range(0..last_selection.start);
8642 let bytes_after_first_selection =
8643 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8644 let query_matches = query
8645 .stream_find_iter(bytes_before_last_selection)
8646 .map(|result| (last_selection.start, result))
8647 .chain(
8648 query
8649 .stream_find_iter(bytes_after_first_selection)
8650 .map(|result| (buffer.len(), result)),
8651 );
8652 for (end_offset, query_match) in query_matches {
8653 let query_match = query_match.unwrap(); // can only fail due to I/O
8654 let offset_range =
8655 end_offset - query_match.end()..end_offset - query_match.start();
8656 let display_range = offset_range.start.to_display_point(&display_map)
8657 ..offset_range.end.to_display_point(&display_map);
8658
8659 if !select_prev_state.wordwise
8660 || (!movement::is_inside_word(&display_map, display_range.start)
8661 && !movement::is_inside_word(&display_map, display_range.end))
8662 {
8663 next_selected_range = Some(offset_range);
8664 break;
8665 }
8666 }
8667
8668 if let Some(next_selected_range) = next_selected_range {
8669 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8670 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8671 if action.replace_newest {
8672 s.delete(s.newest_anchor().id);
8673 }
8674 s.insert_range(next_selected_range);
8675 });
8676 } else {
8677 select_prev_state.done = true;
8678 }
8679 }
8680
8681 self.select_prev_state = Some(select_prev_state);
8682 } else {
8683 let mut only_carets = true;
8684 let mut same_text_selected = true;
8685 let mut selected_text = None;
8686
8687 let mut selections_iter = selections.iter().peekable();
8688 while let Some(selection) = selections_iter.next() {
8689 if selection.start != selection.end {
8690 only_carets = false;
8691 }
8692
8693 if same_text_selected {
8694 if selected_text.is_none() {
8695 selected_text =
8696 Some(buffer.text_for_range(selection.range()).collect::<String>());
8697 }
8698
8699 if let Some(next_selection) = selections_iter.peek() {
8700 if next_selection.range().len() == selection.range().len() {
8701 let next_selected_text = buffer
8702 .text_for_range(next_selection.range())
8703 .collect::<String>();
8704 if Some(next_selected_text) != selected_text {
8705 same_text_selected = false;
8706 selected_text = None;
8707 }
8708 } else {
8709 same_text_selected = false;
8710 selected_text = None;
8711 }
8712 }
8713 }
8714 }
8715
8716 if only_carets {
8717 for selection in &mut selections {
8718 let word_range = movement::surrounding_word(
8719 &display_map,
8720 selection.start.to_display_point(&display_map),
8721 );
8722 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8723 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8724 selection.goal = SelectionGoal::None;
8725 selection.reversed = false;
8726 }
8727 if selections.len() == 1 {
8728 let selection = selections
8729 .last()
8730 .expect("ensured that there's only one selection");
8731 let query = buffer
8732 .text_for_range(selection.start..selection.end)
8733 .collect::<String>();
8734 let is_empty = query.is_empty();
8735 let select_state = SelectNextState {
8736 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8737 wordwise: true,
8738 done: is_empty,
8739 };
8740 self.select_prev_state = Some(select_state);
8741 } else {
8742 self.select_prev_state = None;
8743 }
8744
8745 self.unfold_ranges(
8746 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8747 false,
8748 true,
8749 cx,
8750 );
8751 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8752 s.select(selections);
8753 });
8754 } else if let Some(selected_text) = selected_text {
8755 self.select_prev_state = Some(SelectNextState {
8756 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8757 wordwise: false,
8758 done: false,
8759 });
8760 self.select_previous(action, cx)?;
8761 }
8762 }
8763 Ok(())
8764 }
8765
8766 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8767 let text_layout_details = &self.text_layout_details(cx);
8768 self.transact(cx, |this, cx| {
8769 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8770 let mut edits = Vec::new();
8771 let mut selection_edit_ranges = Vec::new();
8772 let mut last_toggled_row = None;
8773 let snapshot = this.buffer.read(cx).read(cx);
8774 let empty_str: Arc<str> = Arc::default();
8775 let mut suffixes_inserted = Vec::new();
8776 let ignore_indent = action.ignore_indent;
8777
8778 fn comment_prefix_range(
8779 snapshot: &MultiBufferSnapshot,
8780 row: MultiBufferRow,
8781 comment_prefix: &str,
8782 comment_prefix_whitespace: &str,
8783 ignore_indent: bool,
8784 ) -> Range<Point> {
8785 let indent_size = if ignore_indent {
8786 0
8787 } else {
8788 snapshot.indent_size_for_line(row).len
8789 };
8790
8791 let start = Point::new(row.0, indent_size);
8792
8793 let mut line_bytes = snapshot
8794 .bytes_in_range(start..snapshot.max_point())
8795 .flatten()
8796 .copied();
8797
8798 // If this line currently begins with the line comment prefix, then record
8799 // the range containing the prefix.
8800 if line_bytes
8801 .by_ref()
8802 .take(comment_prefix.len())
8803 .eq(comment_prefix.bytes())
8804 {
8805 // Include any whitespace that matches the comment prefix.
8806 let matching_whitespace_len = line_bytes
8807 .zip(comment_prefix_whitespace.bytes())
8808 .take_while(|(a, b)| a == b)
8809 .count() as u32;
8810 let end = Point::new(
8811 start.row,
8812 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8813 );
8814 start..end
8815 } else {
8816 start..start
8817 }
8818 }
8819
8820 fn comment_suffix_range(
8821 snapshot: &MultiBufferSnapshot,
8822 row: MultiBufferRow,
8823 comment_suffix: &str,
8824 comment_suffix_has_leading_space: bool,
8825 ) -> Range<Point> {
8826 let end = Point::new(row.0, snapshot.line_len(row));
8827 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8828
8829 let mut line_end_bytes = snapshot
8830 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8831 .flatten()
8832 .copied();
8833
8834 let leading_space_len = if suffix_start_column > 0
8835 && line_end_bytes.next() == Some(b' ')
8836 && comment_suffix_has_leading_space
8837 {
8838 1
8839 } else {
8840 0
8841 };
8842
8843 // If this line currently begins with the line comment prefix, then record
8844 // the range containing the prefix.
8845 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8846 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8847 start..end
8848 } else {
8849 end..end
8850 }
8851 }
8852
8853 // TODO: Handle selections that cross excerpts
8854 for selection in &mut selections {
8855 let start_column = snapshot
8856 .indent_size_for_line(MultiBufferRow(selection.start.row))
8857 .len;
8858 let language = if let Some(language) =
8859 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8860 {
8861 language
8862 } else {
8863 continue;
8864 };
8865
8866 selection_edit_ranges.clear();
8867
8868 // If multiple selections contain a given row, avoid processing that
8869 // row more than once.
8870 let mut start_row = MultiBufferRow(selection.start.row);
8871 if last_toggled_row == Some(start_row) {
8872 start_row = start_row.next_row();
8873 }
8874 let end_row =
8875 if selection.end.row > selection.start.row && selection.end.column == 0 {
8876 MultiBufferRow(selection.end.row - 1)
8877 } else {
8878 MultiBufferRow(selection.end.row)
8879 };
8880 last_toggled_row = Some(end_row);
8881
8882 if start_row > end_row {
8883 continue;
8884 }
8885
8886 // If the language has line comments, toggle those.
8887 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8888
8889 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8890 if ignore_indent {
8891 full_comment_prefixes = full_comment_prefixes
8892 .into_iter()
8893 .map(|s| Arc::from(s.trim_end()))
8894 .collect();
8895 }
8896
8897 if !full_comment_prefixes.is_empty() {
8898 let first_prefix = full_comment_prefixes
8899 .first()
8900 .expect("prefixes is non-empty");
8901 let prefix_trimmed_lengths = full_comment_prefixes
8902 .iter()
8903 .map(|p| p.trim_end_matches(' ').len())
8904 .collect::<SmallVec<[usize; 4]>>();
8905
8906 let mut all_selection_lines_are_comments = true;
8907
8908 for row in start_row.0..=end_row.0 {
8909 let row = MultiBufferRow(row);
8910 if start_row < end_row && snapshot.is_line_blank(row) {
8911 continue;
8912 }
8913
8914 let prefix_range = full_comment_prefixes
8915 .iter()
8916 .zip(prefix_trimmed_lengths.iter().copied())
8917 .map(|(prefix, trimmed_prefix_len)| {
8918 comment_prefix_range(
8919 snapshot.deref(),
8920 row,
8921 &prefix[..trimmed_prefix_len],
8922 &prefix[trimmed_prefix_len..],
8923 ignore_indent,
8924 )
8925 })
8926 .max_by_key(|range| range.end.column - range.start.column)
8927 .expect("prefixes is non-empty");
8928
8929 if prefix_range.is_empty() {
8930 all_selection_lines_are_comments = false;
8931 }
8932
8933 selection_edit_ranges.push(prefix_range);
8934 }
8935
8936 if all_selection_lines_are_comments {
8937 edits.extend(
8938 selection_edit_ranges
8939 .iter()
8940 .cloned()
8941 .map(|range| (range, empty_str.clone())),
8942 );
8943 } else {
8944 let min_column = selection_edit_ranges
8945 .iter()
8946 .map(|range| range.start.column)
8947 .min()
8948 .unwrap_or(0);
8949 edits.extend(selection_edit_ranges.iter().map(|range| {
8950 let position = Point::new(range.start.row, min_column);
8951 (position..position, first_prefix.clone())
8952 }));
8953 }
8954 } else if let Some((full_comment_prefix, comment_suffix)) =
8955 language.block_comment_delimiters()
8956 {
8957 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8958 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8959 let prefix_range = comment_prefix_range(
8960 snapshot.deref(),
8961 start_row,
8962 comment_prefix,
8963 comment_prefix_whitespace,
8964 ignore_indent,
8965 );
8966 let suffix_range = comment_suffix_range(
8967 snapshot.deref(),
8968 end_row,
8969 comment_suffix.trim_start_matches(' '),
8970 comment_suffix.starts_with(' '),
8971 );
8972
8973 if prefix_range.is_empty() || suffix_range.is_empty() {
8974 edits.push((
8975 prefix_range.start..prefix_range.start,
8976 full_comment_prefix.clone(),
8977 ));
8978 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8979 suffixes_inserted.push((end_row, comment_suffix.len()));
8980 } else {
8981 edits.push((prefix_range, empty_str.clone()));
8982 edits.push((suffix_range, empty_str.clone()));
8983 }
8984 } else {
8985 continue;
8986 }
8987 }
8988
8989 drop(snapshot);
8990 this.buffer.update(cx, |buffer, cx| {
8991 buffer.edit(edits, None, cx);
8992 });
8993
8994 // Adjust selections so that they end before any comment suffixes that
8995 // were inserted.
8996 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8997 let mut selections = this.selections.all::<Point>(cx);
8998 let snapshot = this.buffer.read(cx).read(cx);
8999 for selection in &mut selections {
9000 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9001 match row.cmp(&MultiBufferRow(selection.end.row)) {
9002 Ordering::Less => {
9003 suffixes_inserted.next();
9004 continue;
9005 }
9006 Ordering::Greater => break,
9007 Ordering::Equal => {
9008 if selection.end.column == snapshot.line_len(row) {
9009 if selection.is_empty() {
9010 selection.start.column -= suffix_len as u32;
9011 }
9012 selection.end.column -= suffix_len as u32;
9013 }
9014 break;
9015 }
9016 }
9017 }
9018 }
9019
9020 drop(snapshot);
9021 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9022
9023 let selections = this.selections.all::<Point>(cx);
9024 let selections_on_single_row = selections.windows(2).all(|selections| {
9025 selections[0].start.row == selections[1].start.row
9026 && selections[0].end.row == selections[1].end.row
9027 && selections[0].start.row == selections[0].end.row
9028 });
9029 let selections_selecting = selections
9030 .iter()
9031 .any(|selection| selection.start != selection.end);
9032 let advance_downwards = action.advance_downwards
9033 && selections_on_single_row
9034 && !selections_selecting
9035 && !matches!(this.mode, EditorMode::SingleLine { .. });
9036
9037 if advance_downwards {
9038 let snapshot = this.buffer.read(cx).snapshot(cx);
9039
9040 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9041 s.move_cursors_with(|display_snapshot, display_point, _| {
9042 let mut point = display_point.to_point(display_snapshot);
9043 point.row += 1;
9044 point = snapshot.clip_point(point, Bias::Left);
9045 let display_point = point.to_display_point(display_snapshot);
9046 let goal = SelectionGoal::HorizontalPosition(
9047 display_snapshot
9048 .x_for_display_point(display_point, text_layout_details)
9049 .into(),
9050 );
9051 (display_point, goal)
9052 })
9053 });
9054 }
9055 });
9056 }
9057
9058 pub fn select_enclosing_symbol(
9059 &mut self,
9060 _: &SelectEnclosingSymbol,
9061 cx: &mut ViewContext<Self>,
9062 ) {
9063 let buffer = self.buffer.read(cx).snapshot(cx);
9064 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9065
9066 fn update_selection(
9067 selection: &Selection<usize>,
9068 buffer_snap: &MultiBufferSnapshot,
9069 ) -> Option<Selection<usize>> {
9070 let cursor = selection.head();
9071 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9072 for symbol in symbols.iter().rev() {
9073 let start = symbol.range.start.to_offset(buffer_snap);
9074 let end = symbol.range.end.to_offset(buffer_snap);
9075 let new_range = start..end;
9076 if start < selection.start || end > selection.end {
9077 return Some(Selection {
9078 id: selection.id,
9079 start: new_range.start,
9080 end: new_range.end,
9081 goal: SelectionGoal::None,
9082 reversed: selection.reversed,
9083 });
9084 }
9085 }
9086 None
9087 }
9088
9089 let mut selected_larger_symbol = false;
9090 let new_selections = old_selections
9091 .iter()
9092 .map(|selection| match update_selection(selection, &buffer) {
9093 Some(new_selection) => {
9094 if new_selection.range() != selection.range() {
9095 selected_larger_symbol = true;
9096 }
9097 new_selection
9098 }
9099 None => selection.clone(),
9100 })
9101 .collect::<Vec<_>>();
9102
9103 if selected_larger_symbol {
9104 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9105 s.select(new_selections);
9106 });
9107 }
9108 }
9109
9110 pub fn select_larger_syntax_node(
9111 &mut self,
9112 _: &SelectLargerSyntaxNode,
9113 cx: &mut ViewContext<Self>,
9114 ) {
9115 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9116 let buffer = self.buffer.read(cx).snapshot(cx);
9117 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9118
9119 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9120 let mut selected_larger_node = false;
9121 let new_selections = old_selections
9122 .iter()
9123 .map(|selection| {
9124 let old_range = selection.start..selection.end;
9125 let mut new_range = old_range.clone();
9126 while let Some(containing_range) =
9127 buffer.range_for_syntax_ancestor(new_range.clone())
9128 {
9129 new_range = containing_range;
9130 if !display_map.intersects_fold(new_range.start)
9131 && !display_map.intersects_fold(new_range.end)
9132 {
9133 break;
9134 }
9135 }
9136
9137 selected_larger_node |= new_range != old_range;
9138 Selection {
9139 id: selection.id,
9140 start: new_range.start,
9141 end: new_range.end,
9142 goal: SelectionGoal::None,
9143 reversed: selection.reversed,
9144 }
9145 })
9146 .collect::<Vec<_>>();
9147
9148 if selected_larger_node {
9149 stack.push(old_selections);
9150 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9151 s.select(new_selections);
9152 });
9153 }
9154 self.select_larger_syntax_node_stack = stack;
9155 }
9156
9157 pub fn select_smaller_syntax_node(
9158 &mut self,
9159 _: &SelectSmallerSyntaxNode,
9160 cx: &mut ViewContext<Self>,
9161 ) {
9162 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9163 if let Some(selections) = stack.pop() {
9164 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9165 s.select(selections.to_vec());
9166 });
9167 }
9168 self.select_larger_syntax_node_stack = stack;
9169 }
9170
9171 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9172 if !EditorSettings::get_global(cx).gutter.runnables {
9173 self.clear_tasks();
9174 return Task::ready(());
9175 }
9176 let project = self.project.clone();
9177 cx.spawn(|this, mut cx| async move {
9178 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9179 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9180 }) else {
9181 return;
9182 };
9183
9184 let Some(project) = project else {
9185 return;
9186 };
9187
9188 let hide_runnables = project
9189 .update(&mut cx, |project, cx| {
9190 // Do not display any test indicators in non-dev server remote projects.
9191 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9192 })
9193 .unwrap_or(true);
9194 if hide_runnables {
9195 return;
9196 }
9197 let new_rows =
9198 cx.background_executor()
9199 .spawn({
9200 let snapshot = display_snapshot.clone();
9201 async move {
9202 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9203 }
9204 })
9205 .await;
9206 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9207
9208 this.update(&mut cx, |this, _| {
9209 this.clear_tasks();
9210 for (key, value) in rows {
9211 this.insert_tasks(key, value);
9212 }
9213 })
9214 .ok();
9215 })
9216 }
9217 fn fetch_runnable_ranges(
9218 snapshot: &DisplaySnapshot,
9219 range: Range<Anchor>,
9220 ) -> Vec<language::RunnableRange> {
9221 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9222 }
9223
9224 fn runnable_rows(
9225 project: Model<Project>,
9226 snapshot: DisplaySnapshot,
9227 runnable_ranges: Vec<RunnableRange>,
9228 mut cx: AsyncWindowContext,
9229 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9230 runnable_ranges
9231 .into_iter()
9232 .filter_map(|mut runnable| {
9233 let tasks = cx
9234 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9235 .ok()?;
9236 if tasks.is_empty() {
9237 return None;
9238 }
9239
9240 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9241
9242 let row = snapshot
9243 .buffer_snapshot
9244 .buffer_line_for_row(MultiBufferRow(point.row))?
9245 .1
9246 .start
9247 .row;
9248
9249 let context_range =
9250 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9251 Some((
9252 (runnable.buffer_id, row),
9253 RunnableTasks {
9254 templates: tasks,
9255 offset: MultiBufferOffset(runnable.run_range.start),
9256 context_range,
9257 column: point.column,
9258 extra_variables: runnable.extra_captures,
9259 },
9260 ))
9261 })
9262 .collect()
9263 }
9264
9265 fn templates_with_tags(
9266 project: &Model<Project>,
9267 runnable: &mut Runnable,
9268 cx: &WindowContext<'_>,
9269 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9270 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9271 let (worktree_id, file) = project
9272 .buffer_for_id(runnable.buffer, cx)
9273 .and_then(|buffer| buffer.read(cx).file())
9274 .map(|file| (file.worktree_id(cx), file.clone()))
9275 .unzip();
9276
9277 (
9278 project.task_store().read(cx).task_inventory().cloned(),
9279 worktree_id,
9280 file,
9281 )
9282 });
9283
9284 let tags = mem::take(&mut runnable.tags);
9285 let mut tags: Vec<_> = tags
9286 .into_iter()
9287 .flat_map(|tag| {
9288 let tag = tag.0.clone();
9289 inventory
9290 .as_ref()
9291 .into_iter()
9292 .flat_map(|inventory| {
9293 inventory.read(cx).list_tasks(
9294 file.clone(),
9295 Some(runnable.language.clone()),
9296 worktree_id,
9297 cx,
9298 )
9299 })
9300 .filter(move |(_, template)| {
9301 template.tags.iter().any(|source_tag| source_tag == &tag)
9302 })
9303 })
9304 .sorted_by_key(|(kind, _)| kind.to_owned())
9305 .collect();
9306 if let Some((leading_tag_source, _)) = tags.first() {
9307 // Strongest source wins; if we have worktree tag binding, prefer that to
9308 // global and language bindings;
9309 // if we have a global binding, prefer that to language binding.
9310 let first_mismatch = tags
9311 .iter()
9312 .position(|(tag_source, _)| tag_source != leading_tag_source);
9313 if let Some(index) = first_mismatch {
9314 tags.truncate(index);
9315 }
9316 }
9317
9318 tags
9319 }
9320
9321 pub fn move_to_enclosing_bracket(
9322 &mut self,
9323 _: &MoveToEnclosingBracket,
9324 cx: &mut ViewContext<Self>,
9325 ) {
9326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9327 s.move_offsets_with(|snapshot, selection| {
9328 let Some(enclosing_bracket_ranges) =
9329 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9330 else {
9331 return;
9332 };
9333
9334 let mut best_length = usize::MAX;
9335 let mut best_inside = false;
9336 let mut best_in_bracket_range = false;
9337 let mut best_destination = None;
9338 for (open, close) in enclosing_bracket_ranges {
9339 let close = close.to_inclusive();
9340 let length = close.end() - open.start;
9341 let inside = selection.start >= open.end && selection.end <= *close.start();
9342 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9343 || close.contains(&selection.head());
9344
9345 // If best is next to a bracket and current isn't, skip
9346 if !in_bracket_range && best_in_bracket_range {
9347 continue;
9348 }
9349
9350 // Prefer smaller lengths unless best is inside and current isn't
9351 if length > best_length && (best_inside || !inside) {
9352 continue;
9353 }
9354
9355 best_length = length;
9356 best_inside = inside;
9357 best_in_bracket_range = in_bracket_range;
9358 best_destination = Some(
9359 if close.contains(&selection.start) && close.contains(&selection.end) {
9360 if inside {
9361 open.end
9362 } else {
9363 open.start
9364 }
9365 } else if inside {
9366 *close.start()
9367 } else {
9368 *close.end()
9369 },
9370 );
9371 }
9372
9373 if let Some(destination) = best_destination {
9374 selection.collapse_to(destination, SelectionGoal::None);
9375 }
9376 })
9377 });
9378 }
9379
9380 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9381 self.end_selection(cx);
9382 self.selection_history.mode = SelectionHistoryMode::Undoing;
9383 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9384 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9385 self.select_next_state = entry.select_next_state;
9386 self.select_prev_state = entry.select_prev_state;
9387 self.add_selections_state = entry.add_selections_state;
9388 self.request_autoscroll(Autoscroll::newest(), cx);
9389 }
9390 self.selection_history.mode = SelectionHistoryMode::Normal;
9391 }
9392
9393 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9394 self.end_selection(cx);
9395 self.selection_history.mode = SelectionHistoryMode::Redoing;
9396 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9397 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9398 self.select_next_state = entry.select_next_state;
9399 self.select_prev_state = entry.select_prev_state;
9400 self.add_selections_state = entry.add_selections_state;
9401 self.request_autoscroll(Autoscroll::newest(), cx);
9402 }
9403 self.selection_history.mode = SelectionHistoryMode::Normal;
9404 }
9405
9406 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9407 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9408 }
9409
9410 pub fn expand_excerpts_down(
9411 &mut self,
9412 action: &ExpandExcerptsDown,
9413 cx: &mut ViewContext<Self>,
9414 ) {
9415 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9416 }
9417
9418 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9419 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9420 }
9421
9422 pub fn expand_excerpts_for_direction(
9423 &mut self,
9424 lines: u32,
9425 direction: ExpandExcerptDirection,
9426 cx: &mut ViewContext<Self>,
9427 ) {
9428 let selections = self.selections.disjoint_anchors();
9429
9430 let lines = if lines == 0 {
9431 EditorSettings::get_global(cx).expand_excerpt_lines
9432 } else {
9433 lines
9434 };
9435
9436 self.buffer.update(cx, |buffer, cx| {
9437 buffer.expand_excerpts(
9438 selections
9439 .iter()
9440 .map(|selection| selection.head().excerpt_id)
9441 .dedup(),
9442 lines,
9443 direction,
9444 cx,
9445 )
9446 })
9447 }
9448
9449 pub fn expand_excerpt(
9450 &mut self,
9451 excerpt: ExcerptId,
9452 direction: ExpandExcerptDirection,
9453 cx: &mut ViewContext<Self>,
9454 ) {
9455 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9456 self.buffer.update(cx, |buffer, cx| {
9457 buffer.expand_excerpts([excerpt], lines, direction, cx)
9458 })
9459 }
9460
9461 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9462 self.go_to_diagnostic_impl(Direction::Next, cx)
9463 }
9464
9465 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9466 self.go_to_diagnostic_impl(Direction::Prev, cx)
9467 }
9468
9469 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9470 let buffer = self.buffer.read(cx).snapshot(cx);
9471 let selection = self.selections.newest::<usize>(cx);
9472
9473 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9474 if direction == Direction::Next {
9475 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9476 let (group_id, jump_to) = popover.activation_info();
9477 if self.activate_diagnostics(group_id, cx) {
9478 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9479 let mut new_selection = s.newest_anchor().clone();
9480 new_selection.collapse_to(jump_to, SelectionGoal::None);
9481 s.select_anchors(vec![new_selection.clone()]);
9482 });
9483 }
9484 return;
9485 }
9486 }
9487
9488 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9489 active_diagnostics
9490 .primary_range
9491 .to_offset(&buffer)
9492 .to_inclusive()
9493 });
9494 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9495 if active_primary_range.contains(&selection.head()) {
9496 *active_primary_range.start()
9497 } else {
9498 selection.head()
9499 }
9500 } else {
9501 selection.head()
9502 };
9503 let snapshot = self.snapshot(cx);
9504 loop {
9505 let diagnostics = if direction == Direction::Prev {
9506 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9507 } else {
9508 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9509 }
9510 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9511 let group = diagnostics
9512 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9513 // be sorted in a stable way
9514 // skip until we are at current active diagnostic, if it exists
9515 .skip_while(|entry| {
9516 (match direction {
9517 Direction::Prev => entry.range.start >= search_start,
9518 Direction::Next => entry.range.start <= search_start,
9519 }) && self
9520 .active_diagnostics
9521 .as_ref()
9522 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9523 })
9524 .find_map(|entry| {
9525 if entry.diagnostic.is_primary
9526 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9527 && !entry.range.is_empty()
9528 // if we match with the active diagnostic, skip it
9529 && Some(entry.diagnostic.group_id)
9530 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9531 {
9532 Some((entry.range, entry.diagnostic.group_id))
9533 } else {
9534 None
9535 }
9536 });
9537
9538 if let Some((primary_range, group_id)) = group {
9539 if self.activate_diagnostics(group_id, cx) {
9540 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9541 s.select(vec![Selection {
9542 id: selection.id,
9543 start: primary_range.start,
9544 end: primary_range.start,
9545 reversed: false,
9546 goal: SelectionGoal::None,
9547 }]);
9548 });
9549 }
9550 break;
9551 } else {
9552 // Cycle around to the start of the buffer, potentially moving back to the start of
9553 // the currently active diagnostic.
9554 active_primary_range.take();
9555 if direction == Direction::Prev {
9556 if search_start == buffer.len() {
9557 break;
9558 } else {
9559 search_start = buffer.len();
9560 }
9561 } else if search_start == 0 {
9562 break;
9563 } else {
9564 search_start = 0;
9565 }
9566 }
9567 }
9568 }
9569
9570 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9571 let snapshot = self
9572 .display_map
9573 .update(cx, |display_map, cx| display_map.snapshot(cx));
9574 let selection = self.selections.newest::<Point>(cx);
9575 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9576 }
9577
9578 fn go_to_hunk_after_position(
9579 &mut self,
9580 snapshot: &DisplaySnapshot,
9581 position: Point,
9582 cx: &mut ViewContext<'_, Editor>,
9583 ) -> Option<MultiBufferDiffHunk> {
9584 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9585 snapshot,
9586 position,
9587 false,
9588 snapshot
9589 .buffer_snapshot
9590 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9591 cx,
9592 ) {
9593 return Some(hunk);
9594 }
9595
9596 let wrapped_point = Point::zero();
9597 self.go_to_next_hunk_in_direction(
9598 snapshot,
9599 wrapped_point,
9600 true,
9601 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9602 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9603 ),
9604 cx,
9605 )
9606 }
9607
9608 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9609 let snapshot = self
9610 .display_map
9611 .update(cx, |display_map, cx| display_map.snapshot(cx));
9612 let selection = self.selections.newest::<Point>(cx);
9613
9614 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9615 }
9616
9617 fn go_to_hunk_before_position(
9618 &mut self,
9619 snapshot: &DisplaySnapshot,
9620 position: Point,
9621 cx: &mut ViewContext<'_, Editor>,
9622 ) -> Option<MultiBufferDiffHunk> {
9623 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9624 snapshot,
9625 position,
9626 false,
9627 snapshot
9628 .buffer_snapshot
9629 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9630 cx,
9631 ) {
9632 return Some(hunk);
9633 }
9634
9635 let wrapped_point = snapshot.buffer_snapshot.max_point();
9636 self.go_to_next_hunk_in_direction(
9637 snapshot,
9638 wrapped_point,
9639 true,
9640 snapshot
9641 .buffer_snapshot
9642 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9643 cx,
9644 )
9645 }
9646
9647 fn go_to_next_hunk_in_direction(
9648 &mut self,
9649 snapshot: &DisplaySnapshot,
9650 initial_point: Point,
9651 is_wrapped: bool,
9652 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9653 cx: &mut ViewContext<Editor>,
9654 ) -> Option<MultiBufferDiffHunk> {
9655 let display_point = initial_point.to_display_point(snapshot);
9656 let mut hunks = hunks
9657 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9658 .filter(|(display_hunk, _)| {
9659 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9660 })
9661 .dedup();
9662
9663 if let Some((display_hunk, hunk)) = hunks.next() {
9664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9665 let row = display_hunk.start_display_row();
9666 let point = DisplayPoint::new(row, 0);
9667 s.select_display_ranges([point..point]);
9668 });
9669
9670 Some(hunk)
9671 } else {
9672 None
9673 }
9674 }
9675
9676 pub fn go_to_definition(
9677 &mut self,
9678 _: &GoToDefinition,
9679 cx: &mut ViewContext<Self>,
9680 ) -> Task<Result<Navigated>> {
9681 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9682 cx.spawn(|editor, mut cx| async move {
9683 if definition.await? == Navigated::Yes {
9684 return Ok(Navigated::Yes);
9685 }
9686 match editor.update(&mut cx, |editor, cx| {
9687 editor.find_all_references(&FindAllReferences, cx)
9688 })? {
9689 Some(references) => references.await,
9690 None => Ok(Navigated::No),
9691 }
9692 })
9693 }
9694
9695 pub fn go_to_declaration(
9696 &mut self,
9697 _: &GoToDeclaration,
9698 cx: &mut ViewContext<Self>,
9699 ) -> Task<Result<Navigated>> {
9700 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9701 }
9702
9703 pub fn go_to_declaration_split(
9704 &mut self,
9705 _: &GoToDeclaration,
9706 cx: &mut ViewContext<Self>,
9707 ) -> Task<Result<Navigated>> {
9708 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9709 }
9710
9711 pub fn go_to_implementation(
9712 &mut self,
9713 _: &GoToImplementation,
9714 cx: &mut ViewContext<Self>,
9715 ) -> Task<Result<Navigated>> {
9716 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9717 }
9718
9719 pub fn go_to_implementation_split(
9720 &mut self,
9721 _: &GoToImplementationSplit,
9722 cx: &mut ViewContext<Self>,
9723 ) -> Task<Result<Navigated>> {
9724 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9725 }
9726
9727 pub fn go_to_type_definition(
9728 &mut self,
9729 _: &GoToTypeDefinition,
9730 cx: &mut ViewContext<Self>,
9731 ) -> Task<Result<Navigated>> {
9732 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9733 }
9734
9735 pub fn go_to_definition_split(
9736 &mut self,
9737 _: &GoToDefinitionSplit,
9738 cx: &mut ViewContext<Self>,
9739 ) -> Task<Result<Navigated>> {
9740 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9741 }
9742
9743 pub fn go_to_type_definition_split(
9744 &mut self,
9745 _: &GoToTypeDefinitionSplit,
9746 cx: &mut ViewContext<Self>,
9747 ) -> Task<Result<Navigated>> {
9748 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9749 }
9750
9751 fn go_to_definition_of_kind(
9752 &mut self,
9753 kind: GotoDefinitionKind,
9754 split: bool,
9755 cx: &mut ViewContext<Self>,
9756 ) -> Task<Result<Navigated>> {
9757 let Some(provider) = self.semantics_provider.clone() else {
9758 return Task::ready(Ok(Navigated::No));
9759 };
9760 let head = self.selections.newest::<usize>(cx).head();
9761 let buffer = self.buffer.read(cx);
9762 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9763 text_anchor
9764 } else {
9765 return Task::ready(Ok(Navigated::No));
9766 };
9767
9768 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9769 return Task::ready(Ok(Navigated::No));
9770 };
9771
9772 cx.spawn(|editor, mut cx| async move {
9773 let definitions = definitions.await?;
9774 let navigated = editor
9775 .update(&mut cx, |editor, cx| {
9776 editor.navigate_to_hover_links(
9777 Some(kind),
9778 definitions
9779 .into_iter()
9780 .filter(|location| {
9781 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9782 })
9783 .map(HoverLink::Text)
9784 .collect::<Vec<_>>(),
9785 split,
9786 cx,
9787 )
9788 })?
9789 .await?;
9790 anyhow::Ok(navigated)
9791 })
9792 }
9793
9794 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9795 let position = self.selections.newest_anchor().head();
9796 let Some((buffer, buffer_position)) =
9797 self.buffer.read(cx).text_anchor_for_position(position, cx)
9798 else {
9799 return;
9800 };
9801
9802 cx.spawn(|editor, mut cx| async move {
9803 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9804 editor.update(&mut cx, |_, cx| {
9805 cx.open_url(&url);
9806 })
9807 } else {
9808 Ok(())
9809 }
9810 })
9811 .detach();
9812 }
9813
9814 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9815 let Some(workspace) = self.workspace() else {
9816 return;
9817 };
9818
9819 let position = self.selections.newest_anchor().head();
9820
9821 let Some((buffer, buffer_position)) =
9822 self.buffer.read(cx).text_anchor_for_position(position, cx)
9823 else {
9824 return;
9825 };
9826
9827 let project = self.project.clone();
9828
9829 cx.spawn(|_, mut cx| async move {
9830 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9831
9832 if let Some((_, path)) = result {
9833 workspace
9834 .update(&mut cx, |workspace, cx| {
9835 workspace.open_resolved_path(path, cx)
9836 })?
9837 .await?;
9838 }
9839 anyhow::Ok(())
9840 })
9841 .detach();
9842 }
9843
9844 pub(crate) fn navigate_to_hover_links(
9845 &mut self,
9846 kind: Option<GotoDefinitionKind>,
9847 mut definitions: Vec<HoverLink>,
9848 split: bool,
9849 cx: &mut ViewContext<Editor>,
9850 ) -> Task<Result<Navigated>> {
9851 // If there is one definition, just open it directly
9852 if definitions.len() == 1 {
9853 let definition = definitions.pop().unwrap();
9854
9855 enum TargetTaskResult {
9856 Location(Option<Location>),
9857 AlreadyNavigated,
9858 }
9859
9860 let target_task = match definition {
9861 HoverLink::Text(link) => {
9862 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9863 }
9864 HoverLink::InlayHint(lsp_location, server_id) => {
9865 let computation = self.compute_target_location(lsp_location, server_id, cx);
9866 cx.background_executor().spawn(async move {
9867 let location = computation.await?;
9868 Ok(TargetTaskResult::Location(location))
9869 })
9870 }
9871 HoverLink::Url(url) => {
9872 cx.open_url(&url);
9873 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9874 }
9875 HoverLink::File(path) => {
9876 if let Some(workspace) = self.workspace() {
9877 cx.spawn(|_, mut cx| async move {
9878 workspace
9879 .update(&mut cx, |workspace, cx| {
9880 workspace.open_resolved_path(path, cx)
9881 })?
9882 .await
9883 .map(|_| TargetTaskResult::AlreadyNavigated)
9884 })
9885 } else {
9886 Task::ready(Ok(TargetTaskResult::Location(None)))
9887 }
9888 }
9889 };
9890 cx.spawn(|editor, mut cx| async move {
9891 let target = match target_task.await.context("target resolution task")? {
9892 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9893 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9894 TargetTaskResult::Location(Some(target)) => target,
9895 };
9896
9897 editor.update(&mut cx, |editor, cx| {
9898 let Some(workspace) = editor.workspace() else {
9899 return Navigated::No;
9900 };
9901 let pane = workspace.read(cx).active_pane().clone();
9902
9903 let range = target.range.to_offset(target.buffer.read(cx));
9904 let range = editor.range_for_match(&range);
9905
9906 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9907 let buffer = target.buffer.read(cx);
9908 let range = check_multiline_range(buffer, range);
9909 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9910 s.select_ranges([range]);
9911 });
9912 } else {
9913 cx.window_context().defer(move |cx| {
9914 let target_editor: View<Self> =
9915 workspace.update(cx, |workspace, cx| {
9916 let pane = if split {
9917 workspace.adjacent_pane(cx)
9918 } else {
9919 workspace.active_pane().clone()
9920 };
9921
9922 workspace.open_project_item(
9923 pane,
9924 target.buffer.clone(),
9925 true,
9926 true,
9927 cx,
9928 )
9929 });
9930 target_editor.update(cx, |target_editor, cx| {
9931 // When selecting a definition in a different buffer, disable the nav history
9932 // to avoid creating a history entry at the previous cursor location.
9933 pane.update(cx, |pane, _| pane.disable_history());
9934 let buffer = target.buffer.read(cx);
9935 let range = check_multiline_range(buffer, range);
9936 target_editor.change_selections(
9937 Some(Autoscroll::focused()),
9938 cx,
9939 |s| {
9940 s.select_ranges([range]);
9941 },
9942 );
9943 pane.update(cx, |pane, _| pane.enable_history());
9944 });
9945 });
9946 }
9947 Navigated::Yes
9948 })
9949 })
9950 } else if !definitions.is_empty() {
9951 cx.spawn(|editor, mut cx| async move {
9952 let (title, location_tasks, workspace) = editor
9953 .update(&mut cx, |editor, cx| {
9954 let tab_kind = match kind {
9955 Some(GotoDefinitionKind::Implementation) => "Implementations",
9956 _ => "Definitions",
9957 };
9958 let title = definitions
9959 .iter()
9960 .find_map(|definition| match definition {
9961 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9962 let buffer = origin.buffer.read(cx);
9963 format!(
9964 "{} for {}",
9965 tab_kind,
9966 buffer
9967 .text_for_range(origin.range.clone())
9968 .collect::<String>()
9969 )
9970 }),
9971 HoverLink::InlayHint(_, _) => None,
9972 HoverLink::Url(_) => None,
9973 HoverLink::File(_) => None,
9974 })
9975 .unwrap_or(tab_kind.to_string());
9976 let location_tasks = definitions
9977 .into_iter()
9978 .map(|definition| match definition {
9979 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9980 HoverLink::InlayHint(lsp_location, server_id) => {
9981 editor.compute_target_location(lsp_location, server_id, cx)
9982 }
9983 HoverLink::Url(_) => Task::ready(Ok(None)),
9984 HoverLink::File(_) => Task::ready(Ok(None)),
9985 })
9986 .collect::<Vec<_>>();
9987 (title, location_tasks, editor.workspace().clone())
9988 })
9989 .context("location tasks preparation")?;
9990
9991 let locations = future::join_all(location_tasks)
9992 .await
9993 .into_iter()
9994 .filter_map(|location| location.transpose())
9995 .collect::<Result<_>>()
9996 .context("location tasks")?;
9997
9998 let Some(workspace) = workspace else {
9999 return Ok(Navigated::No);
10000 };
10001 let opened = workspace
10002 .update(&mut cx, |workspace, cx| {
10003 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10004 })
10005 .ok();
10006
10007 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10008 })
10009 } else {
10010 Task::ready(Ok(Navigated::No))
10011 }
10012 }
10013
10014 fn compute_target_location(
10015 &self,
10016 lsp_location: lsp::Location,
10017 server_id: LanguageServerId,
10018 cx: &mut ViewContext<Self>,
10019 ) -> Task<anyhow::Result<Option<Location>>> {
10020 let Some(project) = self.project.clone() else {
10021 return Task::Ready(Some(Ok(None)));
10022 };
10023
10024 cx.spawn(move |editor, mut cx| async move {
10025 let location_task = editor.update(&mut cx, |_, cx| {
10026 project.update(cx, |project, cx| {
10027 let language_server_name = project
10028 .language_server_statuses(cx)
10029 .find(|(id, _)| server_id == *id)
10030 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10031 language_server_name.map(|language_server_name| {
10032 project.open_local_buffer_via_lsp(
10033 lsp_location.uri.clone(),
10034 server_id,
10035 language_server_name,
10036 cx,
10037 )
10038 })
10039 })
10040 })?;
10041 let location = match location_task {
10042 Some(task) => Some({
10043 let target_buffer_handle = task.await.context("open local buffer")?;
10044 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10045 let target_start = target_buffer
10046 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10047 let target_end = target_buffer
10048 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10049 target_buffer.anchor_after(target_start)
10050 ..target_buffer.anchor_before(target_end)
10051 })?;
10052 Location {
10053 buffer: target_buffer_handle,
10054 range,
10055 }
10056 }),
10057 None => None,
10058 };
10059 Ok(location)
10060 })
10061 }
10062
10063 pub fn find_all_references(
10064 &mut self,
10065 _: &FindAllReferences,
10066 cx: &mut ViewContext<Self>,
10067 ) -> Option<Task<Result<Navigated>>> {
10068 let selection = self.selections.newest::<usize>(cx);
10069 let multi_buffer = self.buffer.read(cx);
10070 let head = selection.head();
10071
10072 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10073 let head_anchor = multi_buffer_snapshot.anchor_at(
10074 head,
10075 if head < selection.tail() {
10076 Bias::Right
10077 } else {
10078 Bias::Left
10079 },
10080 );
10081
10082 match self
10083 .find_all_references_task_sources
10084 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10085 {
10086 Ok(_) => {
10087 log::info!(
10088 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10089 );
10090 return None;
10091 }
10092 Err(i) => {
10093 self.find_all_references_task_sources.insert(i, head_anchor);
10094 }
10095 }
10096
10097 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10098 let workspace = self.workspace()?;
10099 let project = workspace.read(cx).project().clone();
10100 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10101 Some(cx.spawn(|editor, mut cx| async move {
10102 let _cleanup = defer({
10103 let mut cx = cx.clone();
10104 move || {
10105 let _ = editor.update(&mut cx, |editor, _| {
10106 if let Ok(i) =
10107 editor
10108 .find_all_references_task_sources
10109 .binary_search_by(|anchor| {
10110 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10111 })
10112 {
10113 editor.find_all_references_task_sources.remove(i);
10114 }
10115 });
10116 }
10117 });
10118
10119 let locations = references.await?;
10120 if locations.is_empty() {
10121 return anyhow::Ok(Navigated::No);
10122 }
10123
10124 workspace.update(&mut cx, |workspace, cx| {
10125 let title = locations
10126 .first()
10127 .as_ref()
10128 .map(|location| {
10129 let buffer = location.buffer.read(cx);
10130 format!(
10131 "References to `{}`",
10132 buffer
10133 .text_for_range(location.range.clone())
10134 .collect::<String>()
10135 )
10136 })
10137 .unwrap();
10138 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10139 Navigated::Yes
10140 })
10141 }))
10142 }
10143
10144 /// Opens a multibuffer with the given project locations in it
10145 pub fn open_locations_in_multibuffer(
10146 workspace: &mut Workspace,
10147 mut locations: Vec<Location>,
10148 title: String,
10149 split: bool,
10150 cx: &mut ViewContext<Workspace>,
10151 ) {
10152 // If there are multiple definitions, open them in a multibuffer
10153 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10154 let mut locations = locations.into_iter().peekable();
10155 let mut ranges_to_highlight = Vec::new();
10156 let capability = workspace.project().read(cx).capability();
10157
10158 let excerpt_buffer = cx.new_model(|cx| {
10159 let mut multibuffer = MultiBuffer::new(capability);
10160 while let Some(location) = locations.next() {
10161 let buffer = location.buffer.read(cx);
10162 let mut ranges_for_buffer = Vec::new();
10163 let range = location.range.to_offset(buffer);
10164 ranges_for_buffer.push(range.clone());
10165
10166 while let Some(next_location) = locations.peek() {
10167 if next_location.buffer == location.buffer {
10168 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10169 locations.next();
10170 } else {
10171 break;
10172 }
10173 }
10174
10175 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10176 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10177 location.buffer.clone(),
10178 ranges_for_buffer,
10179 DEFAULT_MULTIBUFFER_CONTEXT,
10180 cx,
10181 ))
10182 }
10183
10184 multibuffer.with_title(title)
10185 });
10186
10187 let editor = cx.new_view(|cx| {
10188 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10189 });
10190 editor.update(cx, |editor, cx| {
10191 if let Some(first_range) = ranges_to_highlight.first() {
10192 editor.change_selections(None, cx, |selections| {
10193 selections.clear_disjoint();
10194 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10195 });
10196 }
10197 editor.highlight_background::<Self>(
10198 &ranges_to_highlight,
10199 |theme| theme.editor_highlighted_line_background,
10200 cx,
10201 );
10202 });
10203
10204 let item = Box::new(editor);
10205 let item_id = item.item_id();
10206
10207 if split {
10208 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10209 } else {
10210 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10211 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10212 pane.close_current_preview_item(cx)
10213 } else {
10214 None
10215 }
10216 });
10217 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10218 }
10219 workspace.active_pane().update(cx, |pane, cx| {
10220 pane.set_preview_item_id(Some(item_id), cx);
10221 });
10222 }
10223
10224 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10225 use language::ToOffset as _;
10226
10227 let provider = self.semantics_provider.clone()?;
10228 let selection = self.selections.newest_anchor().clone();
10229 let (cursor_buffer, cursor_buffer_position) = self
10230 .buffer
10231 .read(cx)
10232 .text_anchor_for_position(selection.head(), cx)?;
10233 let (tail_buffer, cursor_buffer_position_end) = self
10234 .buffer
10235 .read(cx)
10236 .text_anchor_for_position(selection.tail(), cx)?;
10237 if tail_buffer != cursor_buffer {
10238 return None;
10239 }
10240
10241 let snapshot = cursor_buffer.read(cx).snapshot();
10242 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10243 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10244 let prepare_rename = provider
10245 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10246 .unwrap_or_else(|| Task::ready(Ok(None)));
10247 drop(snapshot);
10248
10249 Some(cx.spawn(|this, mut cx| async move {
10250 let rename_range = if let Some(range) = prepare_rename.await? {
10251 Some(range)
10252 } else {
10253 this.update(&mut cx, |this, cx| {
10254 let buffer = this.buffer.read(cx).snapshot(cx);
10255 let mut buffer_highlights = this
10256 .document_highlights_for_position(selection.head(), &buffer)
10257 .filter(|highlight| {
10258 highlight.start.excerpt_id == selection.head().excerpt_id
10259 && highlight.end.excerpt_id == selection.head().excerpt_id
10260 });
10261 buffer_highlights
10262 .next()
10263 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10264 })?
10265 };
10266 if let Some(rename_range) = rename_range {
10267 this.update(&mut cx, |this, cx| {
10268 let snapshot = cursor_buffer.read(cx).snapshot();
10269 let rename_buffer_range = rename_range.to_offset(&snapshot);
10270 let cursor_offset_in_rename_range =
10271 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10272 let cursor_offset_in_rename_range_end =
10273 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10274
10275 this.take_rename(false, cx);
10276 let buffer = this.buffer.read(cx).read(cx);
10277 let cursor_offset = selection.head().to_offset(&buffer);
10278 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10279 let rename_end = rename_start + rename_buffer_range.len();
10280 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10281 let mut old_highlight_id = None;
10282 let old_name: Arc<str> = buffer
10283 .chunks(rename_start..rename_end, true)
10284 .map(|chunk| {
10285 if old_highlight_id.is_none() {
10286 old_highlight_id = chunk.syntax_highlight_id;
10287 }
10288 chunk.text
10289 })
10290 .collect::<String>()
10291 .into();
10292
10293 drop(buffer);
10294
10295 // Position the selection in the rename editor so that it matches the current selection.
10296 this.show_local_selections = false;
10297 let rename_editor = cx.new_view(|cx| {
10298 let mut editor = Editor::single_line(cx);
10299 editor.buffer.update(cx, |buffer, cx| {
10300 buffer.edit([(0..0, old_name.clone())], None, cx)
10301 });
10302 let rename_selection_range = match cursor_offset_in_rename_range
10303 .cmp(&cursor_offset_in_rename_range_end)
10304 {
10305 Ordering::Equal => {
10306 editor.select_all(&SelectAll, cx);
10307 return editor;
10308 }
10309 Ordering::Less => {
10310 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10311 }
10312 Ordering::Greater => {
10313 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10314 }
10315 };
10316 if rename_selection_range.end > old_name.len() {
10317 editor.select_all(&SelectAll, cx);
10318 } else {
10319 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10320 s.select_ranges([rename_selection_range]);
10321 });
10322 }
10323 editor
10324 });
10325 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10326 if e == &EditorEvent::Focused {
10327 cx.emit(EditorEvent::FocusedIn)
10328 }
10329 })
10330 .detach();
10331
10332 let write_highlights =
10333 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10334 let read_highlights =
10335 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10336 let ranges = write_highlights
10337 .iter()
10338 .flat_map(|(_, ranges)| ranges.iter())
10339 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10340 .cloned()
10341 .collect();
10342
10343 this.highlight_text::<Rename>(
10344 ranges,
10345 HighlightStyle {
10346 fade_out: Some(0.6),
10347 ..Default::default()
10348 },
10349 cx,
10350 );
10351 let rename_focus_handle = rename_editor.focus_handle(cx);
10352 cx.focus(&rename_focus_handle);
10353 let block_id = this.insert_blocks(
10354 [BlockProperties {
10355 style: BlockStyle::Flex,
10356 placement: BlockPlacement::Below(range.start),
10357 height: 1,
10358 render: Box::new({
10359 let rename_editor = rename_editor.clone();
10360 move |cx: &mut BlockContext| {
10361 let mut text_style = cx.editor_style.text.clone();
10362 if let Some(highlight_style) = old_highlight_id
10363 .and_then(|h| h.style(&cx.editor_style.syntax))
10364 {
10365 text_style = text_style.highlight(highlight_style);
10366 }
10367 div()
10368 .pl(cx.anchor_x)
10369 .child(EditorElement::new(
10370 &rename_editor,
10371 EditorStyle {
10372 background: cx.theme().system().transparent,
10373 local_player: cx.editor_style.local_player,
10374 text: text_style,
10375 scrollbar_width: cx.editor_style.scrollbar_width,
10376 syntax: cx.editor_style.syntax.clone(),
10377 status: cx.editor_style.status.clone(),
10378 inlay_hints_style: HighlightStyle {
10379 font_weight: Some(FontWeight::BOLD),
10380 ..make_inlay_hints_style(cx)
10381 },
10382 suggestions_style: HighlightStyle {
10383 color: Some(cx.theme().status().predictive),
10384 ..HighlightStyle::default()
10385 },
10386 ..EditorStyle::default()
10387 },
10388 ))
10389 .into_any_element()
10390 }
10391 }),
10392 priority: 0,
10393 }],
10394 Some(Autoscroll::fit()),
10395 cx,
10396 )[0];
10397 this.pending_rename = Some(RenameState {
10398 range,
10399 old_name,
10400 editor: rename_editor,
10401 block_id,
10402 });
10403 })?;
10404 }
10405
10406 Ok(())
10407 }))
10408 }
10409
10410 pub fn confirm_rename(
10411 &mut self,
10412 _: &ConfirmRename,
10413 cx: &mut ViewContext<Self>,
10414 ) -> Option<Task<Result<()>>> {
10415 let rename = self.take_rename(false, cx)?;
10416 let workspace = self.workspace()?.downgrade();
10417 let (buffer, start) = self
10418 .buffer
10419 .read(cx)
10420 .text_anchor_for_position(rename.range.start, cx)?;
10421 let (end_buffer, _) = self
10422 .buffer
10423 .read(cx)
10424 .text_anchor_for_position(rename.range.end, cx)?;
10425 if buffer != end_buffer {
10426 return None;
10427 }
10428
10429 let old_name = rename.old_name;
10430 let new_name = rename.editor.read(cx).text(cx);
10431
10432 let rename = self.semantics_provider.as_ref()?.perform_rename(
10433 &buffer,
10434 start,
10435 new_name.clone(),
10436 cx,
10437 )?;
10438
10439 Some(cx.spawn(|editor, mut cx| async move {
10440 let project_transaction = rename.await?;
10441 Self::open_project_transaction(
10442 &editor,
10443 workspace,
10444 project_transaction,
10445 format!("Rename: {} → {}", old_name, new_name),
10446 cx.clone(),
10447 )
10448 .await?;
10449
10450 editor.update(&mut cx, |editor, cx| {
10451 editor.refresh_document_highlights(cx);
10452 })?;
10453 Ok(())
10454 }))
10455 }
10456
10457 fn take_rename(
10458 &mut self,
10459 moving_cursor: bool,
10460 cx: &mut ViewContext<Self>,
10461 ) -> Option<RenameState> {
10462 let rename = self.pending_rename.take()?;
10463 if rename.editor.focus_handle(cx).is_focused(cx) {
10464 cx.focus(&self.focus_handle);
10465 }
10466
10467 self.remove_blocks(
10468 [rename.block_id].into_iter().collect(),
10469 Some(Autoscroll::fit()),
10470 cx,
10471 );
10472 self.clear_highlights::<Rename>(cx);
10473 self.show_local_selections = true;
10474
10475 if moving_cursor {
10476 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10477 editor.selections.newest::<usize>(cx).head()
10478 });
10479
10480 // Update the selection to match the position of the selection inside
10481 // the rename editor.
10482 let snapshot = self.buffer.read(cx).read(cx);
10483 let rename_range = rename.range.to_offset(&snapshot);
10484 let cursor_in_editor = snapshot
10485 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10486 .min(rename_range.end);
10487 drop(snapshot);
10488
10489 self.change_selections(None, cx, |s| {
10490 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10491 });
10492 } else {
10493 self.refresh_document_highlights(cx);
10494 }
10495
10496 Some(rename)
10497 }
10498
10499 pub fn pending_rename(&self) -> Option<&RenameState> {
10500 self.pending_rename.as_ref()
10501 }
10502
10503 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10504 let project = match &self.project {
10505 Some(project) => project.clone(),
10506 None => return None,
10507 };
10508
10509 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10510 }
10511
10512 fn format_selections(
10513 &mut self,
10514 _: &FormatSelections,
10515 cx: &mut ViewContext<Self>,
10516 ) -> Option<Task<Result<()>>> {
10517 let project = match &self.project {
10518 Some(project) => project.clone(),
10519 None => return None,
10520 };
10521
10522 let selections = self
10523 .selections
10524 .all_adjusted(cx)
10525 .into_iter()
10526 .filter(|s| !s.is_empty())
10527 .collect_vec();
10528
10529 Some(self.perform_format(
10530 project,
10531 FormatTrigger::Manual,
10532 FormatTarget::Ranges(selections),
10533 cx,
10534 ))
10535 }
10536
10537 fn perform_format(
10538 &mut self,
10539 project: Model<Project>,
10540 trigger: FormatTrigger,
10541 target: FormatTarget,
10542 cx: &mut ViewContext<Self>,
10543 ) -> Task<Result<()>> {
10544 let buffer = self.buffer().clone();
10545 let mut buffers = buffer.read(cx).all_buffers();
10546 if trigger == FormatTrigger::Save {
10547 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10548 }
10549
10550 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10551 let format = project.update(cx, |project, cx| {
10552 project.format(buffers, true, trigger, target, cx)
10553 });
10554
10555 cx.spawn(|_, mut cx| async move {
10556 let transaction = futures::select_biased! {
10557 () = timeout => {
10558 log::warn!("timed out waiting for formatting");
10559 None
10560 }
10561 transaction = format.log_err().fuse() => transaction,
10562 };
10563
10564 buffer
10565 .update(&mut cx, |buffer, cx| {
10566 if let Some(transaction) = transaction {
10567 if !buffer.is_singleton() {
10568 buffer.push_transaction(&transaction.0, cx);
10569 }
10570 }
10571
10572 cx.notify();
10573 })
10574 .ok();
10575
10576 Ok(())
10577 })
10578 }
10579
10580 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10581 if let Some(project) = self.project.clone() {
10582 self.buffer.update(cx, |multi_buffer, cx| {
10583 project.update(cx, |project, cx| {
10584 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10585 });
10586 })
10587 }
10588 }
10589
10590 fn cancel_language_server_work(
10591 &mut self,
10592 _: &actions::CancelLanguageServerWork,
10593 cx: &mut ViewContext<Self>,
10594 ) {
10595 if let Some(project) = self.project.clone() {
10596 self.buffer.update(cx, |multi_buffer, cx| {
10597 project.update(cx, |project, cx| {
10598 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10599 });
10600 })
10601 }
10602 }
10603
10604 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10605 cx.show_character_palette();
10606 }
10607
10608 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10609 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10610 let buffer = self.buffer.read(cx).snapshot(cx);
10611 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10612 let is_valid = buffer
10613 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10614 .any(|entry| {
10615 entry.diagnostic.is_primary
10616 && !entry.range.is_empty()
10617 && entry.range.start == primary_range_start
10618 && entry.diagnostic.message == active_diagnostics.primary_message
10619 });
10620
10621 if is_valid != active_diagnostics.is_valid {
10622 active_diagnostics.is_valid = is_valid;
10623 let mut new_styles = HashMap::default();
10624 for (block_id, diagnostic) in &active_diagnostics.blocks {
10625 new_styles.insert(
10626 *block_id,
10627 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10628 );
10629 }
10630 self.display_map.update(cx, |display_map, _cx| {
10631 display_map.replace_blocks(new_styles)
10632 });
10633 }
10634 }
10635 }
10636
10637 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10638 self.dismiss_diagnostics(cx);
10639 let snapshot = self.snapshot(cx);
10640 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10641 let buffer = self.buffer.read(cx).snapshot(cx);
10642
10643 let mut primary_range = None;
10644 let mut primary_message = None;
10645 let mut group_end = Point::zero();
10646 let diagnostic_group = buffer
10647 .diagnostic_group::<MultiBufferPoint>(group_id)
10648 .filter_map(|entry| {
10649 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10650 && (entry.range.start.row == entry.range.end.row
10651 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10652 {
10653 return None;
10654 }
10655 if entry.range.end > group_end {
10656 group_end = entry.range.end;
10657 }
10658 if entry.diagnostic.is_primary {
10659 primary_range = Some(entry.range.clone());
10660 primary_message = Some(entry.diagnostic.message.clone());
10661 }
10662 Some(entry)
10663 })
10664 .collect::<Vec<_>>();
10665 let primary_range = primary_range?;
10666 let primary_message = primary_message?;
10667 let primary_range =
10668 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10669
10670 let blocks = display_map
10671 .insert_blocks(
10672 diagnostic_group.iter().map(|entry| {
10673 let diagnostic = entry.diagnostic.clone();
10674 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10675 BlockProperties {
10676 style: BlockStyle::Fixed,
10677 placement: BlockPlacement::Below(
10678 buffer.anchor_after(entry.range.start),
10679 ),
10680 height: message_height,
10681 render: diagnostic_block_renderer(diagnostic, None, true, true),
10682 priority: 0,
10683 }
10684 }),
10685 cx,
10686 )
10687 .into_iter()
10688 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10689 .collect();
10690
10691 Some(ActiveDiagnosticGroup {
10692 primary_range,
10693 primary_message,
10694 group_id,
10695 blocks,
10696 is_valid: true,
10697 })
10698 });
10699 self.active_diagnostics.is_some()
10700 }
10701
10702 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10703 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10704 self.display_map.update(cx, |display_map, cx| {
10705 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10706 });
10707 cx.notify();
10708 }
10709 }
10710
10711 pub fn set_selections_from_remote(
10712 &mut self,
10713 selections: Vec<Selection<Anchor>>,
10714 pending_selection: Option<Selection<Anchor>>,
10715 cx: &mut ViewContext<Self>,
10716 ) {
10717 let old_cursor_position = self.selections.newest_anchor().head();
10718 self.selections.change_with(cx, |s| {
10719 s.select_anchors(selections);
10720 if let Some(pending_selection) = pending_selection {
10721 s.set_pending(pending_selection, SelectMode::Character);
10722 } else {
10723 s.clear_pending();
10724 }
10725 });
10726 self.selections_did_change(false, &old_cursor_position, true, cx);
10727 }
10728
10729 fn push_to_selection_history(&mut self) {
10730 self.selection_history.push(SelectionHistoryEntry {
10731 selections: self.selections.disjoint_anchors(),
10732 select_next_state: self.select_next_state.clone(),
10733 select_prev_state: self.select_prev_state.clone(),
10734 add_selections_state: self.add_selections_state.clone(),
10735 });
10736 }
10737
10738 pub fn transact(
10739 &mut self,
10740 cx: &mut ViewContext<Self>,
10741 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10742 ) -> Option<TransactionId> {
10743 self.start_transaction_at(Instant::now(), cx);
10744 update(self, cx);
10745 self.end_transaction_at(Instant::now(), cx)
10746 }
10747
10748 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10749 self.end_selection(cx);
10750 if let Some(tx_id) = self
10751 .buffer
10752 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10753 {
10754 self.selection_history
10755 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10756 cx.emit(EditorEvent::TransactionBegun {
10757 transaction_id: tx_id,
10758 })
10759 }
10760 }
10761
10762 fn end_transaction_at(
10763 &mut self,
10764 now: Instant,
10765 cx: &mut ViewContext<Self>,
10766 ) -> Option<TransactionId> {
10767 if let Some(transaction_id) = self
10768 .buffer
10769 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10770 {
10771 if let Some((_, end_selections)) =
10772 self.selection_history.transaction_mut(transaction_id)
10773 {
10774 *end_selections = Some(self.selections.disjoint_anchors());
10775 } else {
10776 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10777 }
10778
10779 cx.emit(EditorEvent::Edited { transaction_id });
10780 Some(transaction_id)
10781 } else {
10782 None
10783 }
10784 }
10785
10786 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10787 let selection = self.selections.newest::<Point>(cx);
10788
10789 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10790 let range = if selection.is_empty() {
10791 let point = selection.head().to_display_point(&display_map);
10792 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10793 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10794 .to_point(&display_map);
10795 start..end
10796 } else {
10797 selection.range()
10798 };
10799 if display_map.folds_in_range(range).next().is_some() {
10800 self.unfold_lines(&Default::default(), cx)
10801 } else {
10802 self.fold(&Default::default(), cx)
10803 }
10804 }
10805
10806 pub fn toggle_fold_recursive(
10807 &mut self,
10808 _: &actions::ToggleFoldRecursive,
10809 cx: &mut ViewContext<Self>,
10810 ) {
10811 let selection = self.selections.newest::<Point>(cx);
10812
10813 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10814 let range = if selection.is_empty() {
10815 let point = selection.head().to_display_point(&display_map);
10816 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10817 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10818 .to_point(&display_map);
10819 start..end
10820 } else {
10821 selection.range()
10822 };
10823 if display_map.folds_in_range(range).next().is_some() {
10824 self.unfold_recursive(&Default::default(), cx)
10825 } else {
10826 self.fold_recursive(&Default::default(), cx)
10827 }
10828 }
10829
10830 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10831 let mut fold_ranges = Vec::new();
10832 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10833 let selections = self.selections.all_adjusted(cx);
10834
10835 for selection in selections {
10836 let range = selection.range().sorted();
10837 let buffer_start_row = range.start.row;
10838
10839 if range.start.row != range.end.row {
10840 let mut found = false;
10841 let mut row = range.start.row;
10842 while row <= range.end.row {
10843 if let Some((foldable_range, fold_text)) =
10844 { display_map.foldable_range(MultiBufferRow(row)) }
10845 {
10846 found = true;
10847 row = foldable_range.end.row + 1;
10848 fold_ranges.push((foldable_range, fold_text));
10849 } else {
10850 row += 1
10851 }
10852 }
10853 if found {
10854 continue;
10855 }
10856 }
10857
10858 for row in (0..=range.start.row).rev() {
10859 if let Some((foldable_range, fold_text)) =
10860 display_map.foldable_range(MultiBufferRow(row))
10861 {
10862 if foldable_range.end.row >= buffer_start_row {
10863 fold_ranges.push((foldable_range, fold_text));
10864 if row <= range.start.row {
10865 break;
10866 }
10867 }
10868 }
10869 }
10870 }
10871
10872 self.fold_ranges(fold_ranges, true, cx);
10873 }
10874
10875 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10876 let fold_at_level = fold_at.level;
10877 let snapshot = self.buffer.read(cx).snapshot(cx);
10878 let mut fold_ranges = Vec::new();
10879 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10880
10881 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10882 while start_row < end_row {
10883 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10884 Some(foldable_range) => {
10885 let nested_start_row = foldable_range.0.start.row + 1;
10886 let nested_end_row = foldable_range.0.end.row;
10887
10888 if current_level < fold_at_level {
10889 stack.push((nested_start_row, nested_end_row, current_level + 1));
10890 } else if current_level == fold_at_level {
10891 fold_ranges.push(foldable_range);
10892 }
10893
10894 start_row = nested_end_row + 1;
10895 }
10896 None => start_row += 1,
10897 }
10898 }
10899 }
10900
10901 self.fold_ranges(fold_ranges, true, cx);
10902 }
10903
10904 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10905 let mut fold_ranges = Vec::new();
10906 let snapshot = self.buffer.read(cx).snapshot(cx);
10907
10908 for row in 0..snapshot.max_buffer_row().0 {
10909 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10910 fold_ranges.push(foldable_range);
10911 }
10912 }
10913
10914 self.fold_ranges(fold_ranges, true, cx);
10915 }
10916
10917 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10918 let mut fold_ranges = Vec::new();
10919 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10920 let selections = self.selections.all_adjusted(cx);
10921
10922 for selection in selections {
10923 let range = selection.range().sorted();
10924 let buffer_start_row = range.start.row;
10925
10926 if range.start.row != range.end.row {
10927 let mut found = false;
10928 for row in range.start.row..=range.end.row {
10929 if let Some((foldable_range, fold_text)) =
10930 { display_map.foldable_range(MultiBufferRow(row)) }
10931 {
10932 found = true;
10933 fold_ranges.push((foldable_range, fold_text));
10934 }
10935 }
10936 if found {
10937 continue;
10938 }
10939 }
10940
10941 for row in (0..=range.start.row).rev() {
10942 if let Some((foldable_range, fold_text)) =
10943 display_map.foldable_range(MultiBufferRow(row))
10944 {
10945 if foldable_range.end.row >= buffer_start_row {
10946 fold_ranges.push((foldable_range, fold_text));
10947 } else {
10948 break;
10949 }
10950 }
10951 }
10952 }
10953
10954 self.fold_ranges(fold_ranges, true, cx);
10955 }
10956
10957 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10958 let buffer_row = fold_at.buffer_row;
10959 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10960
10961 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10962 let autoscroll = self
10963 .selections
10964 .all::<Point>(cx)
10965 .iter()
10966 .any(|selection| fold_range.overlaps(&selection.range()));
10967
10968 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10969 }
10970 }
10971
10972 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10973 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10974 let buffer = &display_map.buffer_snapshot;
10975 let selections = self.selections.all::<Point>(cx);
10976 let ranges = selections
10977 .iter()
10978 .map(|s| {
10979 let range = s.display_range(&display_map).sorted();
10980 let mut start = range.start.to_point(&display_map);
10981 let mut end = range.end.to_point(&display_map);
10982 start.column = 0;
10983 end.column = buffer.line_len(MultiBufferRow(end.row));
10984 start..end
10985 })
10986 .collect::<Vec<_>>();
10987
10988 self.unfold_ranges(ranges, true, true, cx);
10989 }
10990
10991 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10992 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10993 let selections = self.selections.all::<Point>(cx);
10994 let ranges = selections
10995 .iter()
10996 .map(|s| {
10997 let mut range = s.display_range(&display_map).sorted();
10998 *range.start.column_mut() = 0;
10999 *range.end.column_mut() = display_map.line_len(range.end.row());
11000 let start = range.start.to_point(&display_map);
11001 let end = range.end.to_point(&display_map);
11002 start..end
11003 })
11004 .collect::<Vec<_>>();
11005
11006 self.unfold_ranges(ranges, true, true, cx);
11007 }
11008
11009 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11010 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11011
11012 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11013 ..Point::new(
11014 unfold_at.buffer_row.0,
11015 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11016 );
11017
11018 let autoscroll = self
11019 .selections
11020 .all::<Point>(cx)
11021 .iter()
11022 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11023
11024 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
11025 }
11026
11027 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11028 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11029 self.unfold_ranges(
11030 [Point::zero()..display_map.max_point().to_point(&display_map)],
11031 true,
11032 true,
11033 cx,
11034 );
11035 }
11036
11037 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11038 let selections = self.selections.all::<Point>(cx);
11039 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11040 let line_mode = self.selections.line_mode;
11041 let ranges = selections.into_iter().map(|s| {
11042 if line_mode {
11043 let start = Point::new(s.start.row, 0);
11044 let end = Point::new(
11045 s.end.row,
11046 display_map
11047 .buffer_snapshot
11048 .line_len(MultiBufferRow(s.end.row)),
11049 );
11050 (start..end, display_map.fold_placeholder.clone())
11051 } else {
11052 (s.start..s.end, display_map.fold_placeholder.clone())
11053 }
11054 });
11055 self.fold_ranges(ranges, true, cx);
11056 }
11057
11058 pub fn fold_ranges<T: ToOffset + Clone>(
11059 &mut self,
11060 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
11061 auto_scroll: bool,
11062 cx: &mut ViewContext<Self>,
11063 ) {
11064 let mut fold_ranges = Vec::new();
11065 let mut buffers_affected = HashMap::default();
11066 let multi_buffer = self.buffer().read(cx);
11067 for (fold_range, fold_text) in ranges {
11068 if let Some((_, buffer, _)) =
11069 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
11070 {
11071 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11072 };
11073 fold_ranges.push((fold_range, fold_text));
11074 }
11075
11076 let mut ranges = fold_ranges.into_iter().peekable();
11077 if ranges.peek().is_some() {
11078 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
11079
11080 if auto_scroll {
11081 self.request_autoscroll(Autoscroll::fit(), cx);
11082 }
11083
11084 for buffer in buffers_affected.into_values() {
11085 self.sync_expanded_diff_hunks(buffer, cx);
11086 }
11087
11088 cx.notify();
11089
11090 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11091 // Clear diagnostics block when folding a range that contains it.
11092 let snapshot = self.snapshot(cx);
11093 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11094 drop(snapshot);
11095 self.active_diagnostics = Some(active_diagnostics);
11096 self.dismiss_diagnostics(cx);
11097 } else {
11098 self.active_diagnostics = Some(active_diagnostics);
11099 }
11100 }
11101
11102 self.scrollbar_marker_state.dirty = true;
11103 }
11104 }
11105
11106 pub fn unfold_ranges<T: ToOffset + Clone>(
11107 &mut self,
11108 ranges: impl IntoIterator<Item = Range<T>>,
11109 inclusive: bool,
11110 auto_scroll: bool,
11111 cx: &mut ViewContext<Self>,
11112 ) {
11113 let mut unfold_ranges = Vec::new();
11114 let mut buffers_affected = HashMap::default();
11115 let multi_buffer = self.buffer().read(cx);
11116 for range in ranges {
11117 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11118 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11119 };
11120 unfold_ranges.push(range);
11121 }
11122
11123 let mut ranges = unfold_ranges.into_iter().peekable();
11124 if ranges.peek().is_some() {
11125 self.display_map
11126 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
11127 if auto_scroll {
11128 self.request_autoscroll(Autoscroll::fit(), cx);
11129 }
11130
11131 for buffer in buffers_affected.into_values() {
11132 self.sync_expanded_diff_hunks(buffer, cx);
11133 }
11134
11135 cx.notify();
11136 self.scrollbar_marker_state.dirty = true;
11137 self.active_indent_guides_state.dirty = true;
11138 }
11139 }
11140
11141 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11142 self.display_map.read(cx).fold_placeholder.clone()
11143 }
11144
11145 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11146 if hovered != self.gutter_hovered {
11147 self.gutter_hovered = hovered;
11148 cx.notify();
11149 }
11150 }
11151
11152 pub fn insert_blocks(
11153 &mut self,
11154 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11155 autoscroll: Option<Autoscroll>,
11156 cx: &mut ViewContext<Self>,
11157 ) -> Vec<CustomBlockId> {
11158 let blocks = self
11159 .display_map
11160 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11161 if let Some(autoscroll) = autoscroll {
11162 self.request_autoscroll(autoscroll, cx);
11163 }
11164 cx.notify();
11165 blocks
11166 }
11167
11168 pub fn resize_blocks(
11169 &mut self,
11170 heights: HashMap<CustomBlockId, u32>,
11171 autoscroll: Option<Autoscroll>,
11172 cx: &mut ViewContext<Self>,
11173 ) {
11174 self.display_map
11175 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11176 if let Some(autoscroll) = autoscroll {
11177 self.request_autoscroll(autoscroll, cx);
11178 }
11179 cx.notify();
11180 }
11181
11182 pub fn replace_blocks(
11183 &mut self,
11184 renderers: HashMap<CustomBlockId, RenderBlock>,
11185 autoscroll: Option<Autoscroll>,
11186 cx: &mut ViewContext<Self>,
11187 ) {
11188 self.display_map
11189 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11190 if let Some(autoscroll) = autoscroll {
11191 self.request_autoscroll(autoscroll, cx);
11192 }
11193 cx.notify();
11194 }
11195
11196 pub fn remove_blocks(
11197 &mut self,
11198 block_ids: HashSet<CustomBlockId>,
11199 autoscroll: Option<Autoscroll>,
11200 cx: &mut ViewContext<Self>,
11201 ) {
11202 self.display_map.update(cx, |display_map, cx| {
11203 display_map.remove_blocks(block_ids, cx)
11204 });
11205 if let Some(autoscroll) = autoscroll {
11206 self.request_autoscroll(autoscroll, cx);
11207 }
11208 cx.notify();
11209 }
11210
11211 pub fn row_for_block(
11212 &self,
11213 block_id: CustomBlockId,
11214 cx: &mut ViewContext<Self>,
11215 ) -> Option<DisplayRow> {
11216 self.display_map
11217 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11218 }
11219
11220 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11221 self.focused_block = Some(focused_block);
11222 }
11223
11224 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11225 self.focused_block.take()
11226 }
11227
11228 pub fn insert_creases(
11229 &mut self,
11230 creases: impl IntoIterator<Item = Crease>,
11231 cx: &mut ViewContext<Self>,
11232 ) -> Vec<CreaseId> {
11233 self.display_map
11234 .update(cx, |map, cx| map.insert_creases(creases, cx))
11235 }
11236
11237 pub fn remove_creases(
11238 &mut self,
11239 ids: impl IntoIterator<Item = CreaseId>,
11240 cx: &mut ViewContext<Self>,
11241 ) {
11242 self.display_map
11243 .update(cx, |map, cx| map.remove_creases(ids, cx));
11244 }
11245
11246 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11247 self.display_map
11248 .update(cx, |map, cx| map.snapshot(cx))
11249 .longest_row()
11250 }
11251
11252 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11253 self.display_map
11254 .update(cx, |map, cx| map.snapshot(cx))
11255 .max_point()
11256 }
11257
11258 pub fn text(&self, cx: &AppContext) -> String {
11259 self.buffer.read(cx).read(cx).text()
11260 }
11261
11262 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11263 let text = self.text(cx);
11264 let text = text.trim();
11265
11266 if text.is_empty() {
11267 return None;
11268 }
11269
11270 Some(text.to_string())
11271 }
11272
11273 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11274 self.transact(cx, |this, cx| {
11275 this.buffer
11276 .read(cx)
11277 .as_singleton()
11278 .expect("you can only call set_text on editors for singleton buffers")
11279 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11280 });
11281 }
11282
11283 pub fn display_text(&self, cx: &mut AppContext) -> String {
11284 self.display_map
11285 .update(cx, |map, cx| map.snapshot(cx))
11286 .text()
11287 }
11288
11289 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11290 let mut wrap_guides = smallvec::smallvec![];
11291
11292 if self.show_wrap_guides == Some(false) {
11293 return wrap_guides;
11294 }
11295
11296 let settings = self.buffer.read(cx).settings_at(0, cx);
11297 if settings.show_wrap_guides {
11298 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11299 wrap_guides.push((soft_wrap as usize, true));
11300 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11301 wrap_guides.push((soft_wrap as usize, true));
11302 }
11303 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11304 }
11305
11306 wrap_guides
11307 }
11308
11309 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11310 let settings = self.buffer.read(cx).settings_at(0, cx);
11311 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11312 match mode {
11313 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11314 SoftWrap::None
11315 }
11316 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11317 language_settings::SoftWrap::PreferredLineLength => {
11318 SoftWrap::Column(settings.preferred_line_length)
11319 }
11320 language_settings::SoftWrap::Bounded => {
11321 SoftWrap::Bounded(settings.preferred_line_length)
11322 }
11323 }
11324 }
11325
11326 pub fn set_soft_wrap_mode(
11327 &mut self,
11328 mode: language_settings::SoftWrap,
11329 cx: &mut ViewContext<Self>,
11330 ) {
11331 self.soft_wrap_mode_override = Some(mode);
11332 cx.notify();
11333 }
11334
11335 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11336 self.text_style_refinement = Some(style);
11337 }
11338
11339 /// called by the Element so we know what style we were most recently rendered with.
11340 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11341 let rem_size = cx.rem_size();
11342 self.display_map.update(cx, |map, cx| {
11343 map.set_font(
11344 style.text.font(),
11345 style.text.font_size.to_pixels(rem_size),
11346 cx,
11347 )
11348 });
11349 self.style = Some(style);
11350 }
11351
11352 pub fn style(&self) -> Option<&EditorStyle> {
11353 self.style.as_ref()
11354 }
11355
11356 // Called by the element. This method is not designed to be called outside of the editor
11357 // element's layout code because it does not notify when rewrapping is computed synchronously.
11358 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11359 self.display_map
11360 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11361 }
11362
11363 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11364 if self.soft_wrap_mode_override.is_some() {
11365 self.soft_wrap_mode_override.take();
11366 } else {
11367 let soft_wrap = match self.soft_wrap_mode(cx) {
11368 SoftWrap::GitDiff => return,
11369 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11370 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11371 language_settings::SoftWrap::None
11372 }
11373 };
11374 self.soft_wrap_mode_override = Some(soft_wrap);
11375 }
11376 cx.notify();
11377 }
11378
11379 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11380 let Some(workspace) = self.workspace() else {
11381 return;
11382 };
11383 let fs = workspace.read(cx).app_state().fs.clone();
11384 let current_show = TabBarSettings::get_global(cx).show;
11385 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11386 setting.show = Some(!current_show);
11387 });
11388 }
11389
11390 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11391 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11392 self.buffer
11393 .read(cx)
11394 .settings_at(0, cx)
11395 .indent_guides
11396 .enabled
11397 });
11398 self.show_indent_guides = Some(!currently_enabled);
11399 cx.notify();
11400 }
11401
11402 fn should_show_indent_guides(&self) -> Option<bool> {
11403 self.show_indent_guides
11404 }
11405
11406 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11407 let mut editor_settings = EditorSettings::get_global(cx).clone();
11408 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11409 EditorSettings::override_global(editor_settings, cx);
11410 }
11411
11412 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11413 self.use_relative_line_numbers
11414 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11415 }
11416
11417 pub fn toggle_relative_line_numbers(
11418 &mut self,
11419 _: &ToggleRelativeLineNumbers,
11420 cx: &mut ViewContext<Self>,
11421 ) {
11422 let is_relative = self.should_use_relative_line_numbers(cx);
11423 self.set_relative_line_number(Some(!is_relative), cx)
11424 }
11425
11426 pub fn set_relative_line_number(
11427 &mut self,
11428 is_relative: Option<bool>,
11429 cx: &mut ViewContext<Self>,
11430 ) {
11431 self.use_relative_line_numbers = is_relative;
11432 cx.notify();
11433 }
11434
11435 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11436 self.show_gutter = show_gutter;
11437 cx.notify();
11438 }
11439
11440 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11441 self.show_line_numbers = Some(show_line_numbers);
11442 cx.notify();
11443 }
11444
11445 pub fn set_show_git_diff_gutter(
11446 &mut self,
11447 show_git_diff_gutter: bool,
11448 cx: &mut ViewContext<Self>,
11449 ) {
11450 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11451 cx.notify();
11452 }
11453
11454 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11455 self.show_code_actions = Some(show_code_actions);
11456 cx.notify();
11457 }
11458
11459 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11460 self.show_runnables = Some(show_runnables);
11461 cx.notify();
11462 }
11463
11464 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11465 if self.display_map.read(cx).masked != masked {
11466 self.display_map.update(cx, |map, _| map.masked = masked);
11467 }
11468 cx.notify()
11469 }
11470
11471 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11472 self.show_wrap_guides = Some(show_wrap_guides);
11473 cx.notify();
11474 }
11475
11476 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11477 self.show_indent_guides = Some(show_indent_guides);
11478 cx.notify();
11479 }
11480
11481 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11482 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11483 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11484 if let Some(dir) = file.abs_path(cx).parent() {
11485 return Some(dir.to_owned());
11486 }
11487 }
11488
11489 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11490 return Some(project_path.path.to_path_buf());
11491 }
11492 }
11493
11494 None
11495 }
11496
11497 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11498 self.active_excerpt(cx)?
11499 .1
11500 .read(cx)
11501 .file()
11502 .and_then(|f| f.as_local())
11503 }
11504
11505 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11506 if let Some(target) = self.target_file(cx) {
11507 cx.reveal_path(&target.abs_path(cx));
11508 }
11509 }
11510
11511 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11512 if let Some(file) = self.target_file(cx) {
11513 if let Some(path) = file.abs_path(cx).to_str() {
11514 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11515 }
11516 }
11517 }
11518
11519 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11520 if let Some(file) = self.target_file(cx) {
11521 if let Some(path) = file.path().to_str() {
11522 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11523 }
11524 }
11525 }
11526
11527 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11528 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11529
11530 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11531 self.start_git_blame(true, cx);
11532 }
11533
11534 cx.notify();
11535 }
11536
11537 pub fn toggle_git_blame_inline(
11538 &mut self,
11539 _: &ToggleGitBlameInline,
11540 cx: &mut ViewContext<Self>,
11541 ) {
11542 self.toggle_git_blame_inline_internal(true, cx);
11543 cx.notify();
11544 }
11545
11546 pub fn git_blame_inline_enabled(&self) -> bool {
11547 self.git_blame_inline_enabled
11548 }
11549
11550 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11551 self.show_selection_menu = self
11552 .show_selection_menu
11553 .map(|show_selections_menu| !show_selections_menu)
11554 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11555
11556 cx.notify();
11557 }
11558
11559 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11560 self.show_selection_menu
11561 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11562 }
11563
11564 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11565 if let Some(project) = self.project.as_ref() {
11566 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11567 return;
11568 };
11569
11570 if buffer.read(cx).file().is_none() {
11571 return;
11572 }
11573
11574 let focused = self.focus_handle(cx).contains_focused(cx);
11575
11576 let project = project.clone();
11577 let blame =
11578 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11579 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11580 self.blame = Some(blame);
11581 }
11582 }
11583
11584 fn toggle_git_blame_inline_internal(
11585 &mut self,
11586 user_triggered: bool,
11587 cx: &mut ViewContext<Self>,
11588 ) {
11589 if self.git_blame_inline_enabled {
11590 self.git_blame_inline_enabled = false;
11591 self.show_git_blame_inline = false;
11592 self.show_git_blame_inline_delay_task.take();
11593 } else {
11594 self.git_blame_inline_enabled = true;
11595 self.start_git_blame_inline(user_triggered, cx);
11596 }
11597
11598 cx.notify();
11599 }
11600
11601 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11602 self.start_git_blame(user_triggered, cx);
11603
11604 if ProjectSettings::get_global(cx)
11605 .git
11606 .inline_blame_delay()
11607 .is_some()
11608 {
11609 self.start_inline_blame_timer(cx);
11610 } else {
11611 self.show_git_blame_inline = true
11612 }
11613 }
11614
11615 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11616 self.blame.as_ref()
11617 }
11618
11619 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11620 self.show_git_blame_gutter && self.has_blame_entries(cx)
11621 }
11622
11623 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11624 self.show_git_blame_inline
11625 && self.focus_handle.is_focused(cx)
11626 && !self.newest_selection_head_on_empty_line(cx)
11627 && self.has_blame_entries(cx)
11628 }
11629
11630 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11631 self.blame()
11632 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11633 }
11634
11635 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11636 let cursor_anchor = self.selections.newest_anchor().head();
11637
11638 let snapshot = self.buffer.read(cx).snapshot(cx);
11639 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11640
11641 snapshot.line_len(buffer_row) == 0
11642 }
11643
11644 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11645 let buffer_and_selection = maybe!({
11646 let selection = self.selections.newest::<Point>(cx);
11647 let selection_range = selection.range();
11648
11649 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11650 (buffer, selection_range.start.row..selection_range.end.row)
11651 } else {
11652 let buffer_ranges = self
11653 .buffer()
11654 .read(cx)
11655 .range_to_buffer_ranges(selection_range, cx);
11656
11657 let (buffer, range, _) = if selection.reversed {
11658 buffer_ranges.first()
11659 } else {
11660 buffer_ranges.last()
11661 }?;
11662
11663 let snapshot = buffer.read(cx).snapshot();
11664 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11665 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11666 (buffer.clone(), selection)
11667 };
11668
11669 Some((buffer, selection))
11670 });
11671
11672 let Some((buffer, selection)) = buffer_and_selection else {
11673 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11674 };
11675
11676 let Some(project) = self.project.as_ref() else {
11677 return Task::ready(Err(anyhow!("editor does not have project")));
11678 };
11679
11680 project.update(cx, |project, cx| {
11681 project.get_permalink_to_line(&buffer, selection, cx)
11682 })
11683 }
11684
11685 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11686 let permalink_task = self.get_permalink_to_line(cx);
11687 let workspace = self.workspace();
11688
11689 cx.spawn(|_, mut cx| async move {
11690 match permalink_task.await {
11691 Ok(permalink) => {
11692 cx.update(|cx| {
11693 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11694 })
11695 .ok();
11696 }
11697 Err(err) => {
11698 let message = format!("Failed to copy permalink: {err}");
11699
11700 Err::<(), anyhow::Error>(err).log_err();
11701
11702 if let Some(workspace) = workspace {
11703 workspace
11704 .update(&mut cx, |workspace, cx| {
11705 struct CopyPermalinkToLine;
11706
11707 workspace.show_toast(
11708 Toast::new(
11709 NotificationId::unique::<CopyPermalinkToLine>(),
11710 message,
11711 ),
11712 cx,
11713 )
11714 })
11715 .ok();
11716 }
11717 }
11718 }
11719 })
11720 .detach();
11721 }
11722
11723 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11724 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11725 if let Some(file) = self.target_file(cx) {
11726 if let Some(path) = file.path().to_str() {
11727 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11728 }
11729 }
11730 }
11731
11732 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11733 let permalink_task = self.get_permalink_to_line(cx);
11734 let workspace = self.workspace();
11735
11736 cx.spawn(|_, mut cx| async move {
11737 match permalink_task.await {
11738 Ok(permalink) => {
11739 cx.update(|cx| {
11740 cx.open_url(permalink.as_ref());
11741 })
11742 .ok();
11743 }
11744 Err(err) => {
11745 let message = format!("Failed to open permalink: {err}");
11746
11747 Err::<(), anyhow::Error>(err).log_err();
11748
11749 if let Some(workspace) = workspace {
11750 workspace
11751 .update(&mut cx, |workspace, cx| {
11752 struct OpenPermalinkToLine;
11753
11754 workspace.show_toast(
11755 Toast::new(
11756 NotificationId::unique::<OpenPermalinkToLine>(),
11757 message,
11758 ),
11759 cx,
11760 )
11761 })
11762 .ok();
11763 }
11764 }
11765 }
11766 })
11767 .detach();
11768 }
11769
11770 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11771 /// last highlight added will be used.
11772 ///
11773 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11774 pub fn highlight_rows<T: 'static>(
11775 &mut self,
11776 range: Range<Anchor>,
11777 color: Hsla,
11778 should_autoscroll: bool,
11779 cx: &mut ViewContext<Self>,
11780 ) {
11781 let snapshot = self.buffer().read(cx).snapshot(cx);
11782 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11783 let ix = row_highlights.binary_search_by(|highlight| {
11784 Ordering::Equal
11785 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11786 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11787 });
11788
11789 if let Err(mut ix) = ix {
11790 let index = post_inc(&mut self.highlight_order);
11791
11792 // If this range intersects with the preceding highlight, then merge it with
11793 // the preceding highlight. Otherwise insert a new highlight.
11794 let mut merged = false;
11795 if ix > 0 {
11796 let prev_highlight = &mut row_highlights[ix - 1];
11797 if prev_highlight
11798 .range
11799 .end
11800 .cmp(&range.start, &snapshot)
11801 .is_ge()
11802 {
11803 ix -= 1;
11804 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11805 prev_highlight.range.end = range.end;
11806 }
11807 merged = true;
11808 prev_highlight.index = index;
11809 prev_highlight.color = color;
11810 prev_highlight.should_autoscroll = should_autoscroll;
11811 }
11812 }
11813
11814 if !merged {
11815 row_highlights.insert(
11816 ix,
11817 RowHighlight {
11818 range: range.clone(),
11819 index,
11820 color,
11821 should_autoscroll,
11822 },
11823 );
11824 }
11825
11826 // If any of the following highlights intersect with this one, merge them.
11827 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11828 let highlight = &row_highlights[ix];
11829 if next_highlight
11830 .range
11831 .start
11832 .cmp(&highlight.range.end, &snapshot)
11833 .is_le()
11834 {
11835 if next_highlight
11836 .range
11837 .end
11838 .cmp(&highlight.range.end, &snapshot)
11839 .is_gt()
11840 {
11841 row_highlights[ix].range.end = next_highlight.range.end;
11842 }
11843 row_highlights.remove(ix + 1);
11844 } else {
11845 break;
11846 }
11847 }
11848 }
11849 }
11850
11851 /// Remove any highlighted row ranges of the given type that intersect the
11852 /// given ranges.
11853 pub fn remove_highlighted_rows<T: 'static>(
11854 &mut self,
11855 ranges_to_remove: Vec<Range<Anchor>>,
11856 cx: &mut ViewContext<Self>,
11857 ) {
11858 let snapshot = self.buffer().read(cx).snapshot(cx);
11859 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11860 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11861 row_highlights.retain(|highlight| {
11862 while let Some(range_to_remove) = ranges_to_remove.peek() {
11863 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11864 Ordering::Less | Ordering::Equal => {
11865 ranges_to_remove.next();
11866 }
11867 Ordering::Greater => {
11868 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11869 Ordering::Less | Ordering::Equal => {
11870 return false;
11871 }
11872 Ordering::Greater => break,
11873 }
11874 }
11875 }
11876 }
11877
11878 true
11879 })
11880 }
11881
11882 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11883 pub fn clear_row_highlights<T: 'static>(&mut self) {
11884 self.highlighted_rows.remove(&TypeId::of::<T>());
11885 }
11886
11887 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11888 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11889 self.highlighted_rows
11890 .get(&TypeId::of::<T>())
11891 .map_or(&[] as &[_], |vec| vec.as_slice())
11892 .iter()
11893 .map(|highlight| (highlight.range.clone(), highlight.color))
11894 }
11895
11896 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11897 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11898 /// Allows to ignore certain kinds of highlights.
11899 pub fn highlighted_display_rows(
11900 &mut self,
11901 cx: &mut WindowContext,
11902 ) -> BTreeMap<DisplayRow, Hsla> {
11903 let snapshot = self.snapshot(cx);
11904 let mut used_highlight_orders = HashMap::default();
11905 self.highlighted_rows
11906 .iter()
11907 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11908 .fold(
11909 BTreeMap::<DisplayRow, Hsla>::new(),
11910 |mut unique_rows, highlight| {
11911 let start = highlight.range.start.to_display_point(&snapshot);
11912 let end = highlight.range.end.to_display_point(&snapshot);
11913 let start_row = start.row().0;
11914 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11915 && end.column() == 0
11916 {
11917 end.row().0.saturating_sub(1)
11918 } else {
11919 end.row().0
11920 };
11921 for row in start_row..=end_row {
11922 let used_index =
11923 used_highlight_orders.entry(row).or_insert(highlight.index);
11924 if highlight.index >= *used_index {
11925 *used_index = highlight.index;
11926 unique_rows.insert(DisplayRow(row), highlight.color);
11927 }
11928 }
11929 unique_rows
11930 },
11931 )
11932 }
11933
11934 pub fn highlighted_display_row_for_autoscroll(
11935 &self,
11936 snapshot: &DisplaySnapshot,
11937 ) -> Option<DisplayRow> {
11938 self.highlighted_rows
11939 .values()
11940 .flat_map(|highlighted_rows| highlighted_rows.iter())
11941 .filter_map(|highlight| {
11942 if highlight.should_autoscroll {
11943 Some(highlight.range.start.to_display_point(snapshot).row())
11944 } else {
11945 None
11946 }
11947 })
11948 .min()
11949 }
11950
11951 pub fn set_search_within_ranges(
11952 &mut self,
11953 ranges: &[Range<Anchor>],
11954 cx: &mut ViewContext<Self>,
11955 ) {
11956 self.highlight_background::<SearchWithinRange>(
11957 ranges,
11958 |colors| colors.editor_document_highlight_read_background,
11959 cx,
11960 )
11961 }
11962
11963 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11964 self.breadcrumb_header = Some(new_header);
11965 }
11966
11967 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11968 self.clear_background_highlights::<SearchWithinRange>(cx);
11969 }
11970
11971 pub fn highlight_background<T: 'static>(
11972 &mut self,
11973 ranges: &[Range<Anchor>],
11974 color_fetcher: fn(&ThemeColors) -> Hsla,
11975 cx: &mut ViewContext<Self>,
11976 ) {
11977 self.background_highlights
11978 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11979 self.scrollbar_marker_state.dirty = true;
11980 cx.notify();
11981 }
11982
11983 pub fn clear_background_highlights<T: 'static>(
11984 &mut self,
11985 cx: &mut ViewContext<Self>,
11986 ) -> Option<BackgroundHighlight> {
11987 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11988 if !text_highlights.1.is_empty() {
11989 self.scrollbar_marker_state.dirty = true;
11990 cx.notify();
11991 }
11992 Some(text_highlights)
11993 }
11994
11995 pub fn highlight_gutter<T: 'static>(
11996 &mut self,
11997 ranges: &[Range<Anchor>],
11998 color_fetcher: fn(&AppContext) -> Hsla,
11999 cx: &mut ViewContext<Self>,
12000 ) {
12001 self.gutter_highlights
12002 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12003 cx.notify();
12004 }
12005
12006 pub fn clear_gutter_highlights<T: 'static>(
12007 &mut self,
12008 cx: &mut ViewContext<Self>,
12009 ) -> Option<GutterHighlight> {
12010 cx.notify();
12011 self.gutter_highlights.remove(&TypeId::of::<T>())
12012 }
12013
12014 #[cfg(feature = "test-support")]
12015 pub fn all_text_background_highlights(
12016 &mut self,
12017 cx: &mut ViewContext<Self>,
12018 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12019 let snapshot = self.snapshot(cx);
12020 let buffer = &snapshot.buffer_snapshot;
12021 let start = buffer.anchor_before(0);
12022 let end = buffer.anchor_after(buffer.len());
12023 let theme = cx.theme().colors();
12024 self.background_highlights_in_range(start..end, &snapshot, theme)
12025 }
12026
12027 #[cfg(feature = "test-support")]
12028 pub fn search_background_highlights(
12029 &mut self,
12030 cx: &mut ViewContext<Self>,
12031 ) -> Vec<Range<Point>> {
12032 let snapshot = self.buffer().read(cx).snapshot(cx);
12033
12034 let highlights = self
12035 .background_highlights
12036 .get(&TypeId::of::<items::BufferSearchHighlights>());
12037
12038 if let Some((_color, ranges)) = highlights {
12039 ranges
12040 .iter()
12041 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12042 .collect_vec()
12043 } else {
12044 vec![]
12045 }
12046 }
12047
12048 fn document_highlights_for_position<'a>(
12049 &'a self,
12050 position: Anchor,
12051 buffer: &'a MultiBufferSnapshot,
12052 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12053 let read_highlights = self
12054 .background_highlights
12055 .get(&TypeId::of::<DocumentHighlightRead>())
12056 .map(|h| &h.1);
12057 let write_highlights = self
12058 .background_highlights
12059 .get(&TypeId::of::<DocumentHighlightWrite>())
12060 .map(|h| &h.1);
12061 let left_position = position.bias_left(buffer);
12062 let right_position = position.bias_right(buffer);
12063 read_highlights
12064 .into_iter()
12065 .chain(write_highlights)
12066 .flat_map(move |ranges| {
12067 let start_ix = match ranges.binary_search_by(|probe| {
12068 let cmp = probe.end.cmp(&left_position, buffer);
12069 if cmp.is_ge() {
12070 Ordering::Greater
12071 } else {
12072 Ordering::Less
12073 }
12074 }) {
12075 Ok(i) | Err(i) => i,
12076 };
12077
12078 ranges[start_ix..]
12079 .iter()
12080 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12081 })
12082 }
12083
12084 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12085 self.background_highlights
12086 .get(&TypeId::of::<T>())
12087 .map_or(false, |(_, highlights)| !highlights.is_empty())
12088 }
12089
12090 pub fn background_highlights_in_range(
12091 &self,
12092 search_range: Range<Anchor>,
12093 display_snapshot: &DisplaySnapshot,
12094 theme: &ThemeColors,
12095 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12096 let mut results = Vec::new();
12097 for (color_fetcher, ranges) in self.background_highlights.values() {
12098 let color = color_fetcher(theme);
12099 let start_ix = match ranges.binary_search_by(|probe| {
12100 let cmp = probe
12101 .end
12102 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12103 if cmp.is_gt() {
12104 Ordering::Greater
12105 } else {
12106 Ordering::Less
12107 }
12108 }) {
12109 Ok(i) | Err(i) => i,
12110 };
12111 for range in &ranges[start_ix..] {
12112 if range
12113 .start
12114 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12115 .is_ge()
12116 {
12117 break;
12118 }
12119
12120 let start = range.start.to_display_point(display_snapshot);
12121 let end = range.end.to_display_point(display_snapshot);
12122 results.push((start..end, color))
12123 }
12124 }
12125 results
12126 }
12127
12128 pub fn background_highlight_row_ranges<T: 'static>(
12129 &self,
12130 search_range: Range<Anchor>,
12131 display_snapshot: &DisplaySnapshot,
12132 count: usize,
12133 ) -> Vec<RangeInclusive<DisplayPoint>> {
12134 let mut results = Vec::new();
12135 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12136 return vec![];
12137 };
12138
12139 let start_ix = match ranges.binary_search_by(|probe| {
12140 let cmp = probe
12141 .end
12142 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12143 if cmp.is_gt() {
12144 Ordering::Greater
12145 } else {
12146 Ordering::Less
12147 }
12148 }) {
12149 Ok(i) | Err(i) => i,
12150 };
12151 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12152 if let (Some(start_display), Some(end_display)) = (start, end) {
12153 results.push(
12154 start_display.to_display_point(display_snapshot)
12155 ..=end_display.to_display_point(display_snapshot),
12156 );
12157 }
12158 };
12159 let mut start_row: Option<Point> = None;
12160 let mut end_row: Option<Point> = None;
12161 if ranges.len() > count {
12162 return Vec::new();
12163 }
12164 for range in &ranges[start_ix..] {
12165 if range
12166 .start
12167 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12168 .is_ge()
12169 {
12170 break;
12171 }
12172 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12173 if let Some(current_row) = &end_row {
12174 if end.row == current_row.row {
12175 continue;
12176 }
12177 }
12178 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12179 if start_row.is_none() {
12180 assert_eq!(end_row, None);
12181 start_row = Some(start);
12182 end_row = Some(end);
12183 continue;
12184 }
12185 if let Some(current_end) = end_row.as_mut() {
12186 if start.row > current_end.row + 1 {
12187 push_region(start_row, end_row);
12188 start_row = Some(start);
12189 end_row = Some(end);
12190 } else {
12191 // Merge two hunks.
12192 *current_end = end;
12193 }
12194 } else {
12195 unreachable!();
12196 }
12197 }
12198 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12199 push_region(start_row, end_row);
12200 results
12201 }
12202
12203 pub fn gutter_highlights_in_range(
12204 &self,
12205 search_range: Range<Anchor>,
12206 display_snapshot: &DisplaySnapshot,
12207 cx: &AppContext,
12208 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12209 let mut results = Vec::new();
12210 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12211 let color = color_fetcher(cx);
12212 let start_ix = match ranges.binary_search_by(|probe| {
12213 let cmp = probe
12214 .end
12215 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12216 if cmp.is_gt() {
12217 Ordering::Greater
12218 } else {
12219 Ordering::Less
12220 }
12221 }) {
12222 Ok(i) | Err(i) => i,
12223 };
12224 for range in &ranges[start_ix..] {
12225 if range
12226 .start
12227 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12228 .is_ge()
12229 {
12230 break;
12231 }
12232
12233 let start = range.start.to_display_point(display_snapshot);
12234 let end = range.end.to_display_point(display_snapshot);
12235 results.push((start..end, color))
12236 }
12237 }
12238 results
12239 }
12240
12241 /// Get the text ranges corresponding to the redaction query
12242 pub fn redacted_ranges(
12243 &self,
12244 search_range: Range<Anchor>,
12245 display_snapshot: &DisplaySnapshot,
12246 cx: &WindowContext,
12247 ) -> Vec<Range<DisplayPoint>> {
12248 display_snapshot
12249 .buffer_snapshot
12250 .redacted_ranges(search_range, |file| {
12251 if let Some(file) = file {
12252 file.is_private()
12253 && EditorSettings::get(
12254 Some(SettingsLocation {
12255 worktree_id: file.worktree_id(cx),
12256 path: file.path().as_ref(),
12257 }),
12258 cx,
12259 )
12260 .redact_private_values
12261 } else {
12262 false
12263 }
12264 })
12265 .map(|range| {
12266 range.start.to_display_point(display_snapshot)
12267 ..range.end.to_display_point(display_snapshot)
12268 })
12269 .collect()
12270 }
12271
12272 pub fn highlight_text<T: 'static>(
12273 &mut self,
12274 ranges: Vec<Range<Anchor>>,
12275 style: HighlightStyle,
12276 cx: &mut ViewContext<Self>,
12277 ) {
12278 self.display_map.update(cx, |map, _| {
12279 map.highlight_text(TypeId::of::<T>(), ranges, style)
12280 });
12281 cx.notify();
12282 }
12283
12284 pub(crate) fn highlight_inlays<T: 'static>(
12285 &mut self,
12286 highlights: Vec<InlayHighlight>,
12287 style: HighlightStyle,
12288 cx: &mut ViewContext<Self>,
12289 ) {
12290 self.display_map.update(cx, |map, _| {
12291 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12292 });
12293 cx.notify();
12294 }
12295
12296 pub fn text_highlights<'a, T: 'static>(
12297 &'a self,
12298 cx: &'a AppContext,
12299 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12300 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12301 }
12302
12303 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12304 let cleared = self
12305 .display_map
12306 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12307 if cleared {
12308 cx.notify();
12309 }
12310 }
12311
12312 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12313 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12314 && self.focus_handle.is_focused(cx)
12315 }
12316
12317 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12318 self.show_cursor_when_unfocused = is_enabled;
12319 cx.notify();
12320 }
12321
12322 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12323 cx.notify();
12324 }
12325
12326 fn on_buffer_event(
12327 &mut self,
12328 multibuffer: Model<MultiBuffer>,
12329 event: &multi_buffer::Event,
12330 cx: &mut ViewContext<Self>,
12331 ) {
12332 match event {
12333 multi_buffer::Event::Edited {
12334 singleton_buffer_edited,
12335 } => {
12336 self.scrollbar_marker_state.dirty = true;
12337 self.active_indent_guides_state.dirty = true;
12338 self.refresh_active_diagnostics(cx);
12339 self.refresh_code_actions(cx);
12340 if self.has_active_inline_completion(cx) {
12341 self.update_visible_inline_completion(cx);
12342 }
12343 cx.emit(EditorEvent::BufferEdited);
12344 cx.emit(SearchEvent::MatchesInvalidated);
12345 if *singleton_buffer_edited {
12346 if let Some(project) = &self.project {
12347 let project = project.read(cx);
12348 #[allow(clippy::mutable_key_type)]
12349 let languages_affected = multibuffer
12350 .read(cx)
12351 .all_buffers()
12352 .into_iter()
12353 .filter_map(|buffer| {
12354 let buffer = buffer.read(cx);
12355 let language = buffer.language()?;
12356 if project.is_local()
12357 && project.language_servers_for_buffer(buffer, cx).count() == 0
12358 {
12359 None
12360 } else {
12361 Some(language)
12362 }
12363 })
12364 .cloned()
12365 .collect::<HashSet<_>>();
12366 if !languages_affected.is_empty() {
12367 self.refresh_inlay_hints(
12368 InlayHintRefreshReason::BufferEdited(languages_affected),
12369 cx,
12370 );
12371 }
12372 }
12373 }
12374
12375 let Some(project) = &self.project else { return };
12376 let (telemetry, is_via_ssh) = {
12377 let project = project.read(cx);
12378 let telemetry = project.client().telemetry().clone();
12379 let is_via_ssh = project.is_via_ssh();
12380 (telemetry, is_via_ssh)
12381 };
12382 refresh_linked_ranges(self, cx);
12383 telemetry.log_edit_event("editor", is_via_ssh);
12384 }
12385 multi_buffer::Event::ExcerptsAdded {
12386 buffer,
12387 predecessor,
12388 excerpts,
12389 } => {
12390 self.tasks_update_task = Some(self.refresh_runnables(cx));
12391 cx.emit(EditorEvent::ExcerptsAdded {
12392 buffer: buffer.clone(),
12393 predecessor: *predecessor,
12394 excerpts: excerpts.clone(),
12395 });
12396 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12397 }
12398 multi_buffer::Event::ExcerptsRemoved { ids } => {
12399 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12400 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12401 }
12402 multi_buffer::Event::ExcerptsEdited { ids } => {
12403 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12404 }
12405 multi_buffer::Event::ExcerptsExpanded { ids } => {
12406 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12407 }
12408 multi_buffer::Event::Reparsed(buffer_id) => {
12409 self.tasks_update_task = Some(self.refresh_runnables(cx));
12410
12411 cx.emit(EditorEvent::Reparsed(*buffer_id));
12412 }
12413 multi_buffer::Event::LanguageChanged(buffer_id) => {
12414 linked_editing_ranges::refresh_linked_ranges(self, cx);
12415 cx.emit(EditorEvent::Reparsed(*buffer_id));
12416 cx.notify();
12417 }
12418 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12419 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12420 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12421 cx.emit(EditorEvent::TitleChanged)
12422 }
12423 multi_buffer::Event::DiffBaseChanged => {
12424 self.scrollbar_marker_state.dirty = true;
12425 cx.emit(EditorEvent::DiffBaseChanged);
12426 cx.notify();
12427 }
12428 multi_buffer::Event::DiffUpdated { buffer } => {
12429 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12430 cx.notify();
12431 }
12432 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12433 multi_buffer::Event::DiagnosticsUpdated => {
12434 self.refresh_active_diagnostics(cx);
12435 self.scrollbar_marker_state.dirty = true;
12436 cx.notify();
12437 }
12438 _ => {}
12439 };
12440 }
12441
12442 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12443 cx.notify();
12444 }
12445
12446 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12447 self.tasks_update_task = Some(self.refresh_runnables(cx));
12448 self.refresh_inline_completion(true, false, cx);
12449 self.refresh_inlay_hints(
12450 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12451 self.selections.newest_anchor().head(),
12452 &self.buffer.read(cx).snapshot(cx),
12453 cx,
12454 )),
12455 cx,
12456 );
12457
12458 let old_cursor_shape = self.cursor_shape;
12459
12460 {
12461 let editor_settings = EditorSettings::get_global(cx);
12462 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12463 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12464 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12465 }
12466
12467 if old_cursor_shape != self.cursor_shape {
12468 cx.emit(EditorEvent::CursorShapeChanged);
12469 }
12470
12471 let project_settings = ProjectSettings::get_global(cx);
12472 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12473
12474 if self.mode == EditorMode::Full {
12475 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12476 if self.git_blame_inline_enabled != inline_blame_enabled {
12477 self.toggle_git_blame_inline_internal(false, cx);
12478 }
12479 }
12480
12481 cx.notify();
12482 }
12483
12484 pub fn set_searchable(&mut self, searchable: bool) {
12485 self.searchable = searchable;
12486 }
12487
12488 pub fn searchable(&self) -> bool {
12489 self.searchable
12490 }
12491
12492 fn open_proposed_changes_editor(
12493 &mut self,
12494 _: &OpenProposedChangesEditor,
12495 cx: &mut ViewContext<Self>,
12496 ) {
12497 let Some(workspace) = self.workspace() else {
12498 cx.propagate();
12499 return;
12500 };
12501
12502 let selections = self.selections.all::<usize>(cx);
12503 let buffer = self.buffer.read(cx);
12504 let mut new_selections_by_buffer = HashMap::default();
12505 for selection in selections {
12506 for (buffer, range, _) in
12507 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12508 {
12509 let mut range = range.to_point(buffer.read(cx));
12510 range.start.column = 0;
12511 range.end.column = buffer.read(cx).line_len(range.end.row);
12512 new_selections_by_buffer
12513 .entry(buffer)
12514 .or_insert(Vec::new())
12515 .push(range)
12516 }
12517 }
12518
12519 let proposed_changes_buffers = new_selections_by_buffer
12520 .into_iter()
12521 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12522 .collect::<Vec<_>>();
12523 let proposed_changes_editor = cx.new_view(|cx| {
12524 ProposedChangesEditor::new(
12525 "Proposed changes",
12526 proposed_changes_buffers,
12527 self.project.clone(),
12528 cx,
12529 )
12530 });
12531
12532 cx.window_context().defer(move |cx| {
12533 workspace.update(cx, |workspace, cx| {
12534 workspace.active_pane().update(cx, |pane, cx| {
12535 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12536 });
12537 });
12538 });
12539 }
12540
12541 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12542 self.open_excerpts_common(true, cx)
12543 }
12544
12545 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12546 self.open_excerpts_common(false, cx)
12547 }
12548
12549 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12550 let selections = self.selections.all::<usize>(cx);
12551 let buffer = self.buffer.read(cx);
12552 if buffer.is_singleton() {
12553 cx.propagate();
12554 return;
12555 }
12556
12557 let Some(workspace) = self.workspace() else {
12558 cx.propagate();
12559 return;
12560 };
12561
12562 let mut new_selections_by_buffer = HashMap::default();
12563 for selection in selections {
12564 for (mut buffer_handle, mut range, _) in
12565 buffer.range_to_buffer_ranges(selection.range(), cx)
12566 {
12567 // When editing branch buffers, jump to the corresponding location
12568 // in their base buffer.
12569 let buffer = buffer_handle.read(cx);
12570 if let Some(base_buffer) = buffer.diff_base_buffer() {
12571 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12572 buffer_handle = base_buffer;
12573 }
12574
12575 if selection.reversed {
12576 mem::swap(&mut range.start, &mut range.end);
12577 }
12578 new_selections_by_buffer
12579 .entry(buffer_handle)
12580 .or_insert(Vec::new())
12581 .push(range)
12582 }
12583 }
12584
12585 // We defer the pane interaction because we ourselves are a workspace item
12586 // and activating a new item causes the pane to call a method on us reentrantly,
12587 // which panics if we're on the stack.
12588 cx.window_context().defer(move |cx| {
12589 workspace.update(cx, |workspace, cx| {
12590 let pane = if split {
12591 workspace.adjacent_pane(cx)
12592 } else {
12593 workspace.active_pane().clone()
12594 };
12595
12596 for (buffer, ranges) in new_selections_by_buffer {
12597 let editor =
12598 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12599 editor.update(cx, |editor, cx| {
12600 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12601 s.select_ranges(ranges);
12602 });
12603 });
12604 }
12605 })
12606 });
12607 }
12608
12609 fn jump(
12610 &mut self,
12611 path: ProjectPath,
12612 position: Point,
12613 anchor: language::Anchor,
12614 offset_from_top: u32,
12615 cx: &mut ViewContext<Self>,
12616 ) {
12617 let workspace = self.workspace();
12618 cx.spawn(|_, mut cx| async move {
12619 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12620 let editor = workspace.update(&mut cx, |workspace, cx| {
12621 // Reset the preview item id before opening the new item
12622 workspace.active_pane().update(cx, |pane, cx| {
12623 pane.set_preview_item_id(None, cx);
12624 });
12625 workspace.open_path_preview(path, None, true, true, cx)
12626 })?;
12627 let editor = editor
12628 .await?
12629 .downcast::<Editor>()
12630 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12631 .downgrade();
12632 editor.update(&mut cx, |editor, cx| {
12633 let buffer = editor
12634 .buffer()
12635 .read(cx)
12636 .as_singleton()
12637 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12638 let buffer = buffer.read(cx);
12639 let cursor = if buffer.can_resolve(&anchor) {
12640 language::ToPoint::to_point(&anchor, buffer)
12641 } else {
12642 buffer.clip_point(position, Bias::Left)
12643 };
12644
12645 let nav_history = editor.nav_history.take();
12646 editor.change_selections(
12647 Some(Autoscroll::top_relative(offset_from_top as usize)),
12648 cx,
12649 |s| {
12650 s.select_ranges([cursor..cursor]);
12651 },
12652 );
12653 editor.nav_history = nav_history;
12654
12655 anyhow::Ok(())
12656 })??;
12657
12658 anyhow::Ok(())
12659 })
12660 .detach_and_log_err(cx);
12661 }
12662
12663 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12664 let snapshot = self.buffer.read(cx).read(cx);
12665 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12666 Some(
12667 ranges
12668 .iter()
12669 .map(move |range| {
12670 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12671 })
12672 .collect(),
12673 )
12674 }
12675
12676 fn selection_replacement_ranges(
12677 &self,
12678 range: Range<OffsetUtf16>,
12679 cx: &mut AppContext,
12680 ) -> Vec<Range<OffsetUtf16>> {
12681 let selections = self.selections.all::<OffsetUtf16>(cx);
12682 let newest_selection = selections
12683 .iter()
12684 .max_by_key(|selection| selection.id)
12685 .unwrap();
12686 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12687 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12688 let snapshot = self.buffer.read(cx).read(cx);
12689 selections
12690 .into_iter()
12691 .map(|mut selection| {
12692 selection.start.0 =
12693 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12694 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12695 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12696 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12697 })
12698 .collect()
12699 }
12700
12701 fn report_editor_event(
12702 &self,
12703 operation: &'static str,
12704 file_extension: Option<String>,
12705 cx: &AppContext,
12706 ) {
12707 if cfg!(any(test, feature = "test-support")) {
12708 return;
12709 }
12710
12711 let Some(project) = &self.project else { return };
12712
12713 // If None, we are in a file without an extension
12714 let file = self
12715 .buffer
12716 .read(cx)
12717 .as_singleton()
12718 .and_then(|b| b.read(cx).file());
12719 let file_extension = file_extension.or(file
12720 .as_ref()
12721 .and_then(|file| Path::new(file.file_name(cx)).extension())
12722 .and_then(|e| e.to_str())
12723 .map(|a| a.to_string()));
12724
12725 let vim_mode = cx
12726 .global::<SettingsStore>()
12727 .raw_user_settings()
12728 .get("vim_mode")
12729 == Some(&serde_json::Value::Bool(true));
12730
12731 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12732 == language::language_settings::InlineCompletionProvider::Copilot;
12733 let copilot_enabled_for_language = self
12734 .buffer
12735 .read(cx)
12736 .settings_at(0, cx)
12737 .show_inline_completions;
12738
12739 let project = project.read(cx);
12740 let telemetry = project.client().telemetry().clone();
12741 telemetry.report_editor_event(
12742 file_extension,
12743 vim_mode,
12744 operation,
12745 copilot_enabled,
12746 copilot_enabled_for_language,
12747 project.is_via_ssh(),
12748 )
12749 }
12750
12751 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12752 /// with each line being an array of {text, highlight} objects.
12753 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12754 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12755 return;
12756 };
12757
12758 #[derive(Serialize)]
12759 struct Chunk<'a> {
12760 text: String,
12761 highlight: Option<&'a str>,
12762 }
12763
12764 let snapshot = buffer.read(cx).snapshot();
12765 let range = self
12766 .selected_text_range(false, cx)
12767 .and_then(|selection| {
12768 if selection.range.is_empty() {
12769 None
12770 } else {
12771 Some(selection.range)
12772 }
12773 })
12774 .unwrap_or_else(|| 0..snapshot.len());
12775
12776 let chunks = snapshot.chunks(range, true);
12777 let mut lines = Vec::new();
12778 let mut line: VecDeque<Chunk> = VecDeque::new();
12779
12780 let Some(style) = self.style.as_ref() else {
12781 return;
12782 };
12783
12784 for chunk in chunks {
12785 let highlight = chunk
12786 .syntax_highlight_id
12787 .and_then(|id| id.name(&style.syntax));
12788 let mut chunk_lines = chunk.text.split('\n').peekable();
12789 while let Some(text) = chunk_lines.next() {
12790 let mut merged_with_last_token = false;
12791 if let Some(last_token) = line.back_mut() {
12792 if last_token.highlight == highlight {
12793 last_token.text.push_str(text);
12794 merged_with_last_token = true;
12795 }
12796 }
12797
12798 if !merged_with_last_token {
12799 line.push_back(Chunk {
12800 text: text.into(),
12801 highlight,
12802 });
12803 }
12804
12805 if chunk_lines.peek().is_some() {
12806 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12807 line.pop_front();
12808 }
12809 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12810 line.pop_back();
12811 }
12812
12813 lines.push(mem::take(&mut line));
12814 }
12815 }
12816 }
12817
12818 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12819 return;
12820 };
12821 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12822 }
12823
12824 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12825 &self.inlay_hint_cache
12826 }
12827
12828 pub fn replay_insert_event(
12829 &mut self,
12830 text: &str,
12831 relative_utf16_range: Option<Range<isize>>,
12832 cx: &mut ViewContext<Self>,
12833 ) {
12834 if !self.input_enabled {
12835 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12836 return;
12837 }
12838 if let Some(relative_utf16_range) = relative_utf16_range {
12839 let selections = self.selections.all::<OffsetUtf16>(cx);
12840 self.change_selections(None, cx, |s| {
12841 let new_ranges = selections.into_iter().map(|range| {
12842 let start = OffsetUtf16(
12843 range
12844 .head()
12845 .0
12846 .saturating_add_signed(relative_utf16_range.start),
12847 );
12848 let end = OffsetUtf16(
12849 range
12850 .head()
12851 .0
12852 .saturating_add_signed(relative_utf16_range.end),
12853 );
12854 start..end
12855 });
12856 s.select_ranges(new_ranges);
12857 });
12858 }
12859
12860 self.handle_input(text, cx);
12861 }
12862
12863 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12864 let Some(provider) = self.semantics_provider.as_ref() else {
12865 return false;
12866 };
12867
12868 let mut supports = false;
12869 self.buffer().read(cx).for_each_buffer(|buffer| {
12870 supports |= provider.supports_inlay_hints(buffer, cx);
12871 });
12872 supports
12873 }
12874
12875 pub fn focus(&self, cx: &mut WindowContext) {
12876 cx.focus(&self.focus_handle)
12877 }
12878
12879 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12880 self.focus_handle.is_focused(cx)
12881 }
12882
12883 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12884 cx.emit(EditorEvent::Focused);
12885
12886 if let Some(descendant) = self
12887 .last_focused_descendant
12888 .take()
12889 .and_then(|descendant| descendant.upgrade())
12890 {
12891 cx.focus(&descendant);
12892 } else {
12893 if let Some(blame) = self.blame.as_ref() {
12894 blame.update(cx, GitBlame::focus)
12895 }
12896
12897 self.blink_manager.update(cx, BlinkManager::enable);
12898 self.show_cursor_names(cx);
12899 self.buffer.update(cx, |buffer, cx| {
12900 buffer.finalize_last_transaction(cx);
12901 if self.leader_peer_id.is_none() {
12902 buffer.set_active_selections(
12903 &self.selections.disjoint_anchors(),
12904 self.selections.line_mode,
12905 self.cursor_shape,
12906 cx,
12907 );
12908 }
12909 });
12910 }
12911 }
12912
12913 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12914 cx.emit(EditorEvent::FocusedIn)
12915 }
12916
12917 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12918 if event.blurred != self.focus_handle {
12919 self.last_focused_descendant = Some(event.blurred);
12920 }
12921 }
12922
12923 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12924 self.blink_manager.update(cx, BlinkManager::disable);
12925 self.buffer
12926 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12927
12928 if let Some(blame) = self.blame.as_ref() {
12929 blame.update(cx, GitBlame::blur)
12930 }
12931 if !self.hover_state.focused(cx) {
12932 hide_hover(self, cx);
12933 }
12934
12935 self.hide_context_menu(cx);
12936 cx.emit(EditorEvent::Blurred);
12937 cx.notify();
12938 }
12939
12940 pub fn register_action<A: Action>(
12941 &mut self,
12942 listener: impl Fn(&A, &mut WindowContext) + 'static,
12943 ) -> Subscription {
12944 let id = self.next_editor_action_id.post_inc();
12945 let listener = Arc::new(listener);
12946 self.editor_actions.borrow_mut().insert(
12947 id,
12948 Box::new(move |cx| {
12949 let cx = cx.window_context();
12950 let listener = listener.clone();
12951 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12952 let action = action.downcast_ref().unwrap();
12953 if phase == DispatchPhase::Bubble {
12954 listener(action, cx)
12955 }
12956 })
12957 }),
12958 );
12959
12960 let editor_actions = self.editor_actions.clone();
12961 Subscription::new(move || {
12962 editor_actions.borrow_mut().remove(&id);
12963 })
12964 }
12965
12966 pub fn file_header_size(&self) -> u32 {
12967 FILE_HEADER_HEIGHT
12968 }
12969
12970 pub fn revert(
12971 &mut self,
12972 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12973 cx: &mut ViewContext<Self>,
12974 ) {
12975 self.buffer().update(cx, |multi_buffer, cx| {
12976 for (buffer_id, changes) in revert_changes {
12977 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12978 buffer.update(cx, |buffer, cx| {
12979 buffer.edit(
12980 changes.into_iter().map(|(range, text)| {
12981 (range, text.to_string().map(Arc::<str>::from))
12982 }),
12983 None,
12984 cx,
12985 );
12986 });
12987 }
12988 }
12989 });
12990 self.change_selections(None, cx, |selections| selections.refresh());
12991 }
12992
12993 pub fn to_pixel_point(
12994 &mut self,
12995 source: multi_buffer::Anchor,
12996 editor_snapshot: &EditorSnapshot,
12997 cx: &mut ViewContext<Self>,
12998 ) -> Option<gpui::Point<Pixels>> {
12999 let source_point = source.to_display_point(editor_snapshot);
13000 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13001 }
13002
13003 pub fn display_to_pixel_point(
13004 &mut self,
13005 source: DisplayPoint,
13006 editor_snapshot: &EditorSnapshot,
13007 cx: &mut ViewContext<Self>,
13008 ) -> Option<gpui::Point<Pixels>> {
13009 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13010 let text_layout_details = self.text_layout_details(cx);
13011 let scroll_top = text_layout_details
13012 .scroll_anchor
13013 .scroll_position(editor_snapshot)
13014 .y;
13015
13016 if source.row().as_f32() < scroll_top.floor() {
13017 return None;
13018 }
13019 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13020 let source_y = line_height * (source.row().as_f32() - scroll_top);
13021 Some(gpui::Point::new(source_x, source_y))
13022 }
13023
13024 pub fn has_active_completions_menu(&self) -> bool {
13025 self.context_menu.read().as_ref().map_or(false, |menu| {
13026 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13027 })
13028 }
13029
13030 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13031 self.addons
13032 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13033 }
13034
13035 pub fn unregister_addon<T: Addon>(&mut self) {
13036 self.addons.remove(&std::any::TypeId::of::<T>());
13037 }
13038
13039 pub fn addon<T: Addon>(&self) -> Option<&T> {
13040 let type_id = std::any::TypeId::of::<T>();
13041 self.addons
13042 .get(&type_id)
13043 .and_then(|item| item.to_any().downcast_ref::<T>())
13044 }
13045}
13046
13047fn hunks_for_selections(
13048 multi_buffer_snapshot: &MultiBufferSnapshot,
13049 selections: &[Selection<Anchor>],
13050) -> Vec<MultiBufferDiffHunk> {
13051 let buffer_rows_for_selections = selections.iter().map(|selection| {
13052 let head = selection.head();
13053 let tail = selection.tail();
13054 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13055 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13056 if start > end {
13057 end..start
13058 } else {
13059 start..end
13060 }
13061 });
13062
13063 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13064}
13065
13066pub fn hunks_for_rows(
13067 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13068 multi_buffer_snapshot: &MultiBufferSnapshot,
13069) -> Vec<MultiBufferDiffHunk> {
13070 let mut hunks = Vec::new();
13071 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13072 HashMap::default();
13073 for selected_multi_buffer_rows in rows {
13074 let query_rows =
13075 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13076 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13077 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13078 // when the caret is just above or just below the deleted hunk.
13079 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13080 let related_to_selection = if allow_adjacent {
13081 hunk.row_range.overlaps(&query_rows)
13082 || hunk.row_range.start == query_rows.end
13083 || hunk.row_range.end == query_rows.start
13084 } else {
13085 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13086 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13087 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13088 || selected_multi_buffer_rows.end == hunk.row_range.start
13089 };
13090 if related_to_selection {
13091 if !processed_buffer_rows
13092 .entry(hunk.buffer_id)
13093 .or_default()
13094 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13095 {
13096 continue;
13097 }
13098 hunks.push(hunk);
13099 }
13100 }
13101 }
13102
13103 hunks
13104}
13105
13106pub trait CollaborationHub {
13107 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13108 fn user_participant_indices<'a>(
13109 &self,
13110 cx: &'a AppContext,
13111 ) -> &'a HashMap<u64, ParticipantIndex>;
13112 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13113}
13114
13115impl CollaborationHub for Model<Project> {
13116 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13117 self.read(cx).collaborators()
13118 }
13119
13120 fn user_participant_indices<'a>(
13121 &self,
13122 cx: &'a AppContext,
13123 ) -> &'a HashMap<u64, ParticipantIndex> {
13124 self.read(cx).user_store().read(cx).participant_indices()
13125 }
13126
13127 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13128 let this = self.read(cx);
13129 let user_ids = this.collaborators().values().map(|c| c.user_id);
13130 this.user_store().read_with(cx, |user_store, cx| {
13131 user_store.participant_names(user_ids, cx)
13132 })
13133 }
13134}
13135
13136pub trait SemanticsProvider {
13137 fn hover(
13138 &self,
13139 buffer: &Model<Buffer>,
13140 position: text::Anchor,
13141 cx: &mut AppContext,
13142 ) -> Option<Task<Vec<project::Hover>>>;
13143
13144 fn inlay_hints(
13145 &self,
13146 buffer_handle: Model<Buffer>,
13147 range: Range<text::Anchor>,
13148 cx: &mut AppContext,
13149 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13150
13151 fn resolve_inlay_hint(
13152 &self,
13153 hint: InlayHint,
13154 buffer_handle: Model<Buffer>,
13155 server_id: LanguageServerId,
13156 cx: &mut AppContext,
13157 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13158
13159 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13160
13161 fn document_highlights(
13162 &self,
13163 buffer: &Model<Buffer>,
13164 position: text::Anchor,
13165 cx: &mut AppContext,
13166 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13167
13168 fn definitions(
13169 &self,
13170 buffer: &Model<Buffer>,
13171 position: text::Anchor,
13172 kind: GotoDefinitionKind,
13173 cx: &mut AppContext,
13174 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13175
13176 fn range_for_rename(
13177 &self,
13178 buffer: &Model<Buffer>,
13179 position: text::Anchor,
13180 cx: &mut AppContext,
13181 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13182
13183 fn perform_rename(
13184 &self,
13185 buffer: &Model<Buffer>,
13186 position: text::Anchor,
13187 new_name: String,
13188 cx: &mut AppContext,
13189 ) -> Option<Task<Result<ProjectTransaction>>>;
13190}
13191
13192pub trait CompletionProvider {
13193 fn completions(
13194 &self,
13195 buffer: &Model<Buffer>,
13196 buffer_position: text::Anchor,
13197 trigger: CompletionContext,
13198 cx: &mut ViewContext<Editor>,
13199 ) -> Task<Result<Vec<Completion>>>;
13200
13201 fn resolve_completions(
13202 &self,
13203 buffer: Model<Buffer>,
13204 completion_indices: Vec<usize>,
13205 completions: Arc<RwLock<Box<[Completion]>>>,
13206 cx: &mut ViewContext<Editor>,
13207 ) -> Task<Result<bool>>;
13208
13209 fn apply_additional_edits_for_completion(
13210 &self,
13211 buffer: Model<Buffer>,
13212 completion: Completion,
13213 push_to_history: bool,
13214 cx: &mut ViewContext<Editor>,
13215 ) -> Task<Result<Option<language::Transaction>>>;
13216
13217 fn is_completion_trigger(
13218 &self,
13219 buffer: &Model<Buffer>,
13220 position: language::Anchor,
13221 text: &str,
13222 trigger_in_words: bool,
13223 cx: &mut ViewContext<Editor>,
13224 ) -> bool;
13225
13226 fn sort_completions(&self) -> bool {
13227 true
13228 }
13229}
13230
13231pub trait CodeActionProvider {
13232 fn code_actions(
13233 &self,
13234 buffer: &Model<Buffer>,
13235 range: Range<text::Anchor>,
13236 cx: &mut WindowContext,
13237 ) -> Task<Result<Vec<CodeAction>>>;
13238
13239 fn apply_code_action(
13240 &self,
13241 buffer_handle: Model<Buffer>,
13242 action: CodeAction,
13243 excerpt_id: ExcerptId,
13244 push_to_history: bool,
13245 cx: &mut WindowContext,
13246 ) -> Task<Result<ProjectTransaction>>;
13247}
13248
13249impl CodeActionProvider for Model<Project> {
13250 fn code_actions(
13251 &self,
13252 buffer: &Model<Buffer>,
13253 range: Range<text::Anchor>,
13254 cx: &mut WindowContext,
13255 ) -> Task<Result<Vec<CodeAction>>> {
13256 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13257 }
13258
13259 fn apply_code_action(
13260 &self,
13261 buffer_handle: Model<Buffer>,
13262 action: CodeAction,
13263 _excerpt_id: ExcerptId,
13264 push_to_history: bool,
13265 cx: &mut WindowContext,
13266 ) -> Task<Result<ProjectTransaction>> {
13267 self.update(cx, |project, cx| {
13268 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13269 })
13270 }
13271}
13272
13273fn snippet_completions(
13274 project: &Project,
13275 buffer: &Model<Buffer>,
13276 buffer_position: text::Anchor,
13277 cx: &mut AppContext,
13278) -> Vec<Completion> {
13279 let language = buffer.read(cx).language_at(buffer_position);
13280 let language_name = language.as_ref().map(|language| language.lsp_id());
13281 let snippet_store = project.snippets().read(cx);
13282 let snippets = snippet_store.snippets_for(language_name, cx);
13283
13284 if snippets.is_empty() {
13285 return vec![];
13286 }
13287 let snapshot = buffer.read(cx).text_snapshot();
13288 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13289
13290 let scope = language.map(|language| language.default_scope());
13291 let classifier = CharClassifier::new(scope).for_completion(true);
13292 let mut last_word = chars
13293 .take_while(|c| classifier.is_word(*c))
13294 .collect::<String>();
13295 last_word = last_word.chars().rev().collect();
13296 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13297 let to_lsp = |point: &text::Anchor| {
13298 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13299 point_to_lsp(end)
13300 };
13301 let lsp_end = to_lsp(&buffer_position);
13302 snippets
13303 .into_iter()
13304 .filter_map(|snippet| {
13305 let matching_prefix = snippet
13306 .prefix
13307 .iter()
13308 .find(|prefix| prefix.starts_with(&last_word))?;
13309 let start = as_offset - last_word.len();
13310 let start = snapshot.anchor_before(start);
13311 let range = start..buffer_position;
13312 let lsp_start = to_lsp(&start);
13313 let lsp_range = lsp::Range {
13314 start: lsp_start,
13315 end: lsp_end,
13316 };
13317 Some(Completion {
13318 old_range: range,
13319 new_text: snippet.body.clone(),
13320 label: CodeLabel {
13321 text: matching_prefix.clone(),
13322 runs: vec![],
13323 filter_range: 0..matching_prefix.len(),
13324 },
13325 server_id: LanguageServerId(usize::MAX),
13326 documentation: snippet.description.clone().map(Documentation::SingleLine),
13327 lsp_completion: lsp::CompletionItem {
13328 label: snippet.prefix.first().unwrap().clone(),
13329 kind: Some(CompletionItemKind::SNIPPET),
13330 label_details: snippet.description.as_ref().map(|description| {
13331 lsp::CompletionItemLabelDetails {
13332 detail: Some(description.clone()),
13333 description: None,
13334 }
13335 }),
13336 insert_text_format: Some(InsertTextFormat::SNIPPET),
13337 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13338 lsp::InsertReplaceEdit {
13339 new_text: snippet.body.clone(),
13340 insert: lsp_range,
13341 replace: lsp_range,
13342 },
13343 )),
13344 filter_text: Some(snippet.body.clone()),
13345 sort_text: Some(char::MAX.to_string()),
13346 ..Default::default()
13347 },
13348 confirm: None,
13349 })
13350 })
13351 .collect()
13352}
13353
13354impl CompletionProvider for Model<Project> {
13355 fn completions(
13356 &self,
13357 buffer: &Model<Buffer>,
13358 buffer_position: text::Anchor,
13359 options: CompletionContext,
13360 cx: &mut ViewContext<Editor>,
13361 ) -> Task<Result<Vec<Completion>>> {
13362 self.update(cx, |project, cx| {
13363 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13364 let project_completions = project.completions(buffer, buffer_position, options, cx);
13365 cx.background_executor().spawn(async move {
13366 let mut completions = project_completions.await?;
13367 //let snippets = snippets.into_iter().;
13368 completions.extend(snippets);
13369 Ok(completions)
13370 })
13371 })
13372 }
13373
13374 fn resolve_completions(
13375 &self,
13376 buffer: Model<Buffer>,
13377 completion_indices: Vec<usize>,
13378 completions: Arc<RwLock<Box<[Completion]>>>,
13379 cx: &mut ViewContext<Editor>,
13380 ) -> Task<Result<bool>> {
13381 self.update(cx, |project, cx| {
13382 project.resolve_completions(buffer, completion_indices, completions, cx)
13383 })
13384 }
13385
13386 fn apply_additional_edits_for_completion(
13387 &self,
13388 buffer: Model<Buffer>,
13389 completion: Completion,
13390 push_to_history: bool,
13391 cx: &mut ViewContext<Editor>,
13392 ) -> Task<Result<Option<language::Transaction>>> {
13393 self.update(cx, |project, cx| {
13394 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13395 })
13396 }
13397
13398 fn is_completion_trigger(
13399 &self,
13400 buffer: &Model<Buffer>,
13401 position: language::Anchor,
13402 text: &str,
13403 trigger_in_words: bool,
13404 cx: &mut ViewContext<Editor>,
13405 ) -> bool {
13406 if !EditorSettings::get_global(cx).show_completions_on_input {
13407 return false;
13408 }
13409
13410 let mut chars = text.chars();
13411 let char = if let Some(char) = chars.next() {
13412 char
13413 } else {
13414 return false;
13415 };
13416 if chars.next().is_some() {
13417 return false;
13418 }
13419
13420 let buffer = buffer.read(cx);
13421 let classifier = buffer
13422 .snapshot()
13423 .char_classifier_at(position)
13424 .for_completion(true);
13425 if trigger_in_words && classifier.is_word(char) {
13426 return true;
13427 }
13428
13429 buffer
13430 .completion_triggers()
13431 .iter()
13432 .any(|string| string == text)
13433 }
13434}
13435
13436impl SemanticsProvider for Model<Project> {
13437 fn hover(
13438 &self,
13439 buffer: &Model<Buffer>,
13440 position: text::Anchor,
13441 cx: &mut AppContext,
13442 ) -> Option<Task<Vec<project::Hover>>> {
13443 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13444 }
13445
13446 fn document_highlights(
13447 &self,
13448 buffer: &Model<Buffer>,
13449 position: text::Anchor,
13450 cx: &mut AppContext,
13451 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13452 Some(self.update(cx, |project, cx| {
13453 project.document_highlights(buffer, position, cx)
13454 }))
13455 }
13456
13457 fn definitions(
13458 &self,
13459 buffer: &Model<Buffer>,
13460 position: text::Anchor,
13461 kind: GotoDefinitionKind,
13462 cx: &mut AppContext,
13463 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13464 Some(self.update(cx, |project, cx| match kind {
13465 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13466 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13467 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13468 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13469 }))
13470 }
13471
13472 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13473 // TODO: make this work for remote projects
13474 self.read(cx)
13475 .language_servers_for_buffer(buffer.read(cx), cx)
13476 .any(
13477 |(_, server)| match server.capabilities().inlay_hint_provider {
13478 Some(lsp::OneOf::Left(enabled)) => enabled,
13479 Some(lsp::OneOf::Right(_)) => true,
13480 None => false,
13481 },
13482 )
13483 }
13484
13485 fn inlay_hints(
13486 &self,
13487 buffer_handle: Model<Buffer>,
13488 range: Range<text::Anchor>,
13489 cx: &mut AppContext,
13490 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13491 Some(self.update(cx, |project, cx| {
13492 project.inlay_hints(buffer_handle, range, cx)
13493 }))
13494 }
13495
13496 fn resolve_inlay_hint(
13497 &self,
13498 hint: InlayHint,
13499 buffer_handle: Model<Buffer>,
13500 server_id: LanguageServerId,
13501 cx: &mut AppContext,
13502 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13503 Some(self.update(cx, |project, cx| {
13504 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13505 }))
13506 }
13507
13508 fn range_for_rename(
13509 &self,
13510 buffer: &Model<Buffer>,
13511 position: text::Anchor,
13512 cx: &mut AppContext,
13513 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13514 Some(self.update(cx, |project, cx| {
13515 project.prepare_rename(buffer.clone(), position, cx)
13516 }))
13517 }
13518
13519 fn perform_rename(
13520 &self,
13521 buffer: &Model<Buffer>,
13522 position: text::Anchor,
13523 new_name: String,
13524 cx: &mut AppContext,
13525 ) -> Option<Task<Result<ProjectTransaction>>> {
13526 Some(self.update(cx, |project, cx| {
13527 project.perform_rename(buffer.clone(), position, new_name, cx)
13528 }))
13529 }
13530}
13531
13532fn inlay_hint_settings(
13533 location: Anchor,
13534 snapshot: &MultiBufferSnapshot,
13535 cx: &mut ViewContext<'_, Editor>,
13536) -> InlayHintSettings {
13537 let file = snapshot.file_at(location);
13538 let language = snapshot.language_at(location).map(|l| l.name());
13539 language_settings(language, file, cx).inlay_hints
13540}
13541
13542fn consume_contiguous_rows(
13543 contiguous_row_selections: &mut Vec<Selection<Point>>,
13544 selection: &Selection<Point>,
13545 display_map: &DisplaySnapshot,
13546 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13547) -> (MultiBufferRow, MultiBufferRow) {
13548 contiguous_row_selections.push(selection.clone());
13549 let start_row = MultiBufferRow(selection.start.row);
13550 let mut end_row = ending_row(selection, display_map);
13551
13552 while let Some(next_selection) = selections.peek() {
13553 if next_selection.start.row <= end_row.0 {
13554 end_row = ending_row(next_selection, display_map);
13555 contiguous_row_selections.push(selections.next().unwrap().clone());
13556 } else {
13557 break;
13558 }
13559 }
13560 (start_row, end_row)
13561}
13562
13563fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13564 if next_selection.end.column > 0 || next_selection.is_empty() {
13565 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13566 } else {
13567 MultiBufferRow(next_selection.end.row)
13568 }
13569}
13570
13571impl EditorSnapshot {
13572 pub fn remote_selections_in_range<'a>(
13573 &'a self,
13574 range: &'a Range<Anchor>,
13575 collaboration_hub: &dyn CollaborationHub,
13576 cx: &'a AppContext,
13577 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13578 let participant_names = collaboration_hub.user_names(cx);
13579 let participant_indices = collaboration_hub.user_participant_indices(cx);
13580 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13581 let collaborators_by_replica_id = collaborators_by_peer_id
13582 .iter()
13583 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13584 .collect::<HashMap<_, _>>();
13585 self.buffer_snapshot
13586 .selections_in_range(range, false)
13587 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13588 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13589 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13590 let user_name = participant_names.get(&collaborator.user_id).cloned();
13591 Some(RemoteSelection {
13592 replica_id,
13593 selection,
13594 cursor_shape,
13595 line_mode,
13596 participant_index,
13597 peer_id: collaborator.peer_id,
13598 user_name,
13599 })
13600 })
13601 }
13602
13603 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13604 self.display_snapshot.buffer_snapshot.language_at(position)
13605 }
13606
13607 pub fn is_focused(&self) -> bool {
13608 self.is_focused
13609 }
13610
13611 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13612 self.placeholder_text.as_ref()
13613 }
13614
13615 pub fn scroll_position(&self) -> gpui::Point<f32> {
13616 self.scroll_anchor.scroll_position(&self.display_snapshot)
13617 }
13618
13619 fn gutter_dimensions(
13620 &self,
13621 font_id: FontId,
13622 font_size: Pixels,
13623 em_width: Pixels,
13624 em_advance: Pixels,
13625 max_line_number_width: Pixels,
13626 cx: &AppContext,
13627 ) -> GutterDimensions {
13628 if !self.show_gutter {
13629 return GutterDimensions::default();
13630 }
13631 let descent = cx.text_system().descent(font_id, font_size);
13632
13633 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13634 matches!(
13635 ProjectSettings::get_global(cx).git.git_gutter,
13636 Some(GitGutterSetting::TrackedFiles)
13637 )
13638 });
13639 let gutter_settings = EditorSettings::get_global(cx).gutter;
13640 let show_line_numbers = self
13641 .show_line_numbers
13642 .unwrap_or(gutter_settings.line_numbers);
13643 let line_gutter_width = if show_line_numbers {
13644 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13645 let min_width_for_number_on_gutter = em_advance * 4.0;
13646 max_line_number_width.max(min_width_for_number_on_gutter)
13647 } else {
13648 0.0.into()
13649 };
13650
13651 let show_code_actions = self
13652 .show_code_actions
13653 .unwrap_or(gutter_settings.code_actions);
13654
13655 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13656
13657 let git_blame_entries_width =
13658 self.git_blame_gutter_max_author_length
13659 .map(|max_author_length| {
13660 // Length of the author name, but also space for the commit hash,
13661 // the spacing and the timestamp.
13662 let max_char_count = max_author_length
13663 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13664 + 7 // length of commit sha
13665 + 14 // length of max relative timestamp ("60 minutes ago")
13666 + 4; // gaps and margins
13667
13668 em_advance * max_char_count
13669 });
13670
13671 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13672 left_padding += if show_code_actions || show_runnables {
13673 em_width * 3.0
13674 } else if show_git_gutter && show_line_numbers {
13675 em_width * 2.0
13676 } else if show_git_gutter || show_line_numbers {
13677 em_width
13678 } else {
13679 px(0.)
13680 };
13681
13682 let right_padding = if gutter_settings.folds && show_line_numbers {
13683 em_width * 4.0
13684 } else if gutter_settings.folds {
13685 em_width * 3.0
13686 } else if show_line_numbers {
13687 em_width
13688 } else {
13689 px(0.)
13690 };
13691
13692 GutterDimensions {
13693 left_padding,
13694 right_padding,
13695 width: line_gutter_width + left_padding + right_padding,
13696 margin: -descent,
13697 git_blame_entries_width,
13698 }
13699 }
13700
13701 pub fn render_fold_toggle(
13702 &self,
13703 buffer_row: MultiBufferRow,
13704 row_contains_cursor: bool,
13705 editor: View<Editor>,
13706 cx: &mut WindowContext,
13707 ) -> Option<AnyElement> {
13708 let folded = self.is_line_folded(buffer_row);
13709
13710 if let Some(crease) = self
13711 .crease_snapshot
13712 .query_row(buffer_row, &self.buffer_snapshot)
13713 {
13714 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13715 if folded {
13716 editor.update(cx, |editor, cx| {
13717 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13718 });
13719 } else {
13720 editor.update(cx, |editor, cx| {
13721 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13722 });
13723 }
13724 });
13725
13726 Some((crease.render_toggle)(
13727 buffer_row,
13728 folded,
13729 toggle_callback,
13730 cx,
13731 ))
13732 } else if folded
13733 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13734 {
13735 Some(
13736 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13737 .selected(folded)
13738 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13739 if folded {
13740 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13741 } else {
13742 this.fold_at(&FoldAt { buffer_row }, cx);
13743 }
13744 }))
13745 .into_any_element(),
13746 )
13747 } else {
13748 None
13749 }
13750 }
13751
13752 pub fn render_crease_trailer(
13753 &self,
13754 buffer_row: MultiBufferRow,
13755 cx: &mut WindowContext,
13756 ) -> Option<AnyElement> {
13757 let folded = self.is_line_folded(buffer_row);
13758 let crease = self
13759 .crease_snapshot
13760 .query_row(buffer_row, &self.buffer_snapshot)?;
13761 Some((crease.render_trailer)(buffer_row, folded, cx))
13762 }
13763}
13764
13765impl Deref for EditorSnapshot {
13766 type Target = DisplaySnapshot;
13767
13768 fn deref(&self) -> &Self::Target {
13769 &self.display_snapshot
13770 }
13771}
13772
13773#[derive(Clone, Debug, PartialEq, Eq)]
13774pub enum EditorEvent {
13775 InputIgnored {
13776 text: Arc<str>,
13777 },
13778 InputHandled {
13779 utf16_range_to_replace: Option<Range<isize>>,
13780 text: Arc<str>,
13781 },
13782 ExcerptsAdded {
13783 buffer: Model<Buffer>,
13784 predecessor: ExcerptId,
13785 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13786 },
13787 ExcerptsRemoved {
13788 ids: Vec<ExcerptId>,
13789 },
13790 ExcerptsEdited {
13791 ids: Vec<ExcerptId>,
13792 },
13793 ExcerptsExpanded {
13794 ids: Vec<ExcerptId>,
13795 },
13796 BufferEdited,
13797 Edited {
13798 transaction_id: clock::Lamport,
13799 },
13800 Reparsed(BufferId),
13801 Focused,
13802 FocusedIn,
13803 Blurred,
13804 DirtyChanged,
13805 Saved,
13806 TitleChanged,
13807 DiffBaseChanged,
13808 SelectionsChanged {
13809 local: bool,
13810 },
13811 ScrollPositionChanged {
13812 local: bool,
13813 autoscroll: bool,
13814 },
13815 Closed,
13816 TransactionUndone {
13817 transaction_id: clock::Lamport,
13818 },
13819 TransactionBegun {
13820 transaction_id: clock::Lamport,
13821 },
13822 Reloaded,
13823 CursorShapeChanged,
13824}
13825
13826impl EventEmitter<EditorEvent> for Editor {}
13827
13828impl FocusableView for Editor {
13829 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13830 self.focus_handle.clone()
13831 }
13832}
13833
13834impl Render for Editor {
13835 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13836 let settings = ThemeSettings::get_global(cx);
13837
13838 let mut text_style = match self.mode {
13839 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13840 color: cx.theme().colors().editor_foreground,
13841 font_family: settings.ui_font.family.clone(),
13842 font_features: settings.ui_font.features.clone(),
13843 font_fallbacks: settings.ui_font.fallbacks.clone(),
13844 font_size: rems(0.875).into(),
13845 font_weight: settings.ui_font.weight,
13846 line_height: relative(settings.buffer_line_height.value()),
13847 ..Default::default()
13848 },
13849 EditorMode::Full => TextStyle {
13850 color: cx.theme().colors().editor_foreground,
13851 font_family: settings.buffer_font.family.clone(),
13852 font_features: settings.buffer_font.features.clone(),
13853 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13854 font_size: settings.buffer_font_size(cx).into(),
13855 font_weight: settings.buffer_font.weight,
13856 line_height: relative(settings.buffer_line_height.value()),
13857 ..Default::default()
13858 },
13859 };
13860 if let Some(text_style_refinement) = &self.text_style_refinement {
13861 text_style.refine(text_style_refinement)
13862 }
13863
13864 let background = match self.mode {
13865 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13866 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13867 EditorMode::Full => cx.theme().colors().editor_background,
13868 };
13869
13870 EditorElement::new(
13871 cx.view(),
13872 EditorStyle {
13873 background,
13874 local_player: cx.theme().players().local(),
13875 text: text_style,
13876 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13877 syntax: cx.theme().syntax().clone(),
13878 status: cx.theme().status().clone(),
13879 inlay_hints_style: make_inlay_hints_style(cx),
13880 suggestions_style: HighlightStyle {
13881 color: Some(cx.theme().status().predictive),
13882 ..HighlightStyle::default()
13883 },
13884 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13885 },
13886 )
13887 }
13888}
13889
13890impl ViewInputHandler for Editor {
13891 fn text_for_range(
13892 &mut self,
13893 range_utf16: Range<usize>,
13894 cx: &mut ViewContext<Self>,
13895 ) -> Option<String> {
13896 Some(
13897 self.buffer
13898 .read(cx)
13899 .read(cx)
13900 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13901 .collect(),
13902 )
13903 }
13904
13905 fn selected_text_range(
13906 &mut self,
13907 ignore_disabled_input: bool,
13908 cx: &mut ViewContext<Self>,
13909 ) -> Option<UTF16Selection> {
13910 // Prevent the IME menu from appearing when holding down an alphabetic key
13911 // while input is disabled.
13912 if !ignore_disabled_input && !self.input_enabled {
13913 return None;
13914 }
13915
13916 let selection = self.selections.newest::<OffsetUtf16>(cx);
13917 let range = selection.range();
13918
13919 Some(UTF16Selection {
13920 range: range.start.0..range.end.0,
13921 reversed: selection.reversed,
13922 })
13923 }
13924
13925 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13926 let snapshot = self.buffer.read(cx).read(cx);
13927 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13928 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13929 }
13930
13931 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13932 self.clear_highlights::<InputComposition>(cx);
13933 self.ime_transaction.take();
13934 }
13935
13936 fn replace_text_in_range(
13937 &mut self,
13938 range_utf16: Option<Range<usize>>,
13939 text: &str,
13940 cx: &mut ViewContext<Self>,
13941 ) {
13942 if !self.input_enabled {
13943 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13944 return;
13945 }
13946
13947 self.transact(cx, |this, cx| {
13948 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13949 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13950 Some(this.selection_replacement_ranges(range_utf16, cx))
13951 } else {
13952 this.marked_text_ranges(cx)
13953 };
13954
13955 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13956 let newest_selection_id = this.selections.newest_anchor().id;
13957 this.selections
13958 .all::<OffsetUtf16>(cx)
13959 .iter()
13960 .zip(ranges_to_replace.iter())
13961 .find_map(|(selection, range)| {
13962 if selection.id == newest_selection_id {
13963 Some(
13964 (range.start.0 as isize - selection.head().0 as isize)
13965 ..(range.end.0 as isize - selection.head().0 as isize),
13966 )
13967 } else {
13968 None
13969 }
13970 })
13971 });
13972
13973 cx.emit(EditorEvent::InputHandled {
13974 utf16_range_to_replace: range_to_replace,
13975 text: text.into(),
13976 });
13977
13978 if let Some(new_selected_ranges) = new_selected_ranges {
13979 this.change_selections(None, cx, |selections| {
13980 selections.select_ranges(new_selected_ranges)
13981 });
13982 this.backspace(&Default::default(), cx);
13983 }
13984
13985 this.handle_input(text, cx);
13986 });
13987
13988 if let Some(transaction) = self.ime_transaction {
13989 self.buffer.update(cx, |buffer, cx| {
13990 buffer.group_until_transaction(transaction, cx);
13991 });
13992 }
13993
13994 self.unmark_text(cx);
13995 }
13996
13997 fn replace_and_mark_text_in_range(
13998 &mut self,
13999 range_utf16: Option<Range<usize>>,
14000 text: &str,
14001 new_selected_range_utf16: Option<Range<usize>>,
14002 cx: &mut ViewContext<Self>,
14003 ) {
14004 if !self.input_enabled {
14005 return;
14006 }
14007
14008 let transaction = self.transact(cx, |this, cx| {
14009 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14010 let snapshot = this.buffer.read(cx).read(cx);
14011 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14012 for marked_range in &mut marked_ranges {
14013 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14014 marked_range.start.0 += relative_range_utf16.start;
14015 marked_range.start =
14016 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14017 marked_range.end =
14018 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14019 }
14020 }
14021 Some(marked_ranges)
14022 } else if let Some(range_utf16) = range_utf16 {
14023 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14024 Some(this.selection_replacement_ranges(range_utf16, cx))
14025 } else {
14026 None
14027 };
14028
14029 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14030 let newest_selection_id = this.selections.newest_anchor().id;
14031 this.selections
14032 .all::<OffsetUtf16>(cx)
14033 .iter()
14034 .zip(ranges_to_replace.iter())
14035 .find_map(|(selection, range)| {
14036 if selection.id == newest_selection_id {
14037 Some(
14038 (range.start.0 as isize - selection.head().0 as isize)
14039 ..(range.end.0 as isize - selection.head().0 as isize),
14040 )
14041 } else {
14042 None
14043 }
14044 })
14045 });
14046
14047 cx.emit(EditorEvent::InputHandled {
14048 utf16_range_to_replace: range_to_replace,
14049 text: text.into(),
14050 });
14051
14052 if let Some(ranges) = ranges_to_replace {
14053 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14054 }
14055
14056 let marked_ranges = {
14057 let snapshot = this.buffer.read(cx).read(cx);
14058 this.selections
14059 .disjoint_anchors()
14060 .iter()
14061 .map(|selection| {
14062 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14063 })
14064 .collect::<Vec<_>>()
14065 };
14066
14067 if text.is_empty() {
14068 this.unmark_text(cx);
14069 } else {
14070 this.highlight_text::<InputComposition>(
14071 marked_ranges.clone(),
14072 HighlightStyle {
14073 underline: Some(UnderlineStyle {
14074 thickness: px(1.),
14075 color: None,
14076 wavy: false,
14077 }),
14078 ..Default::default()
14079 },
14080 cx,
14081 );
14082 }
14083
14084 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14085 let use_autoclose = this.use_autoclose;
14086 let use_auto_surround = this.use_auto_surround;
14087 this.set_use_autoclose(false);
14088 this.set_use_auto_surround(false);
14089 this.handle_input(text, cx);
14090 this.set_use_autoclose(use_autoclose);
14091 this.set_use_auto_surround(use_auto_surround);
14092
14093 if let Some(new_selected_range) = new_selected_range_utf16 {
14094 let snapshot = this.buffer.read(cx).read(cx);
14095 let new_selected_ranges = marked_ranges
14096 .into_iter()
14097 .map(|marked_range| {
14098 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14099 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14100 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14101 snapshot.clip_offset_utf16(new_start, Bias::Left)
14102 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14103 })
14104 .collect::<Vec<_>>();
14105
14106 drop(snapshot);
14107 this.change_selections(None, cx, |selections| {
14108 selections.select_ranges(new_selected_ranges)
14109 });
14110 }
14111 });
14112
14113 self.ime_transaction = self.ime_transaction.or(transaction);
14114 if let Some(transaction) = self.ime_transaction {
14115 self.buffer.update(cx, |buffer, cx| {
14116 buffer.group_until_transaction(transaction, cx);
14117 });
14118 }
14119
14120 if self.text_highlights::<InputComposition>(cx).is_none() {
14121 self.ime_transaction.take();
14122 }
14123 }
14124
14125 fn bounds_for_range(
14126 &mut self,
14127 range_utf16: Range<usize>,
14128 element_bounds: gpui::Bounds<Pixels>,
14129 cx: &mut ViewContext<Self>,
14130 ) -> Option<gpui::Bounds<Pixels>> {
14131 let text_layout_details = self.text_layout_details(cx);
14132 let style = &text_layout_details.editor_style;
14133 let font_id = cx.text_system().resolve_font(&style.text.font());
14134 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14135 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14136
14137 let em_width = cx
14138 .text_system()
14139 .typographic_bounds(font_id, font_size, 'm')
14140 .unwrap()
14141 .size
14142 .width;
14143
14144 let snapshot = self.snapshot(cx);
14145 let scroll_position = snapshot.scroll_position();
14146 let scroll_left = scroll_position.x * em_width;
14147
14148 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14149 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14150 + self.gutter_dimensions.width;
14151 let y = line_height * (start.row().as_f32() - scroll_position.y);
14152
14153 Some(Bounds {
14154 origin: element_bounds.origin + point(x, y),
14155 size: size(em_width, line_height),
14156 })
14157 }
14158}
14159
14160trait SelectionExt {
14161 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14162 fn spanned_rows(
14163 &self,
14164 include_end_if_at_line_start: bool,
14165 map: &DisplaySnapshot,
14166 ) -> Range<MultiBufferRow>;
14167}
14168
14169impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14170 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14171 let start = self
14172 .start
14173 .to_point(&map.buffer_snapshot)
14174 .to_display_point(map);
14175 let end = self
14176 .end
14177 .to_point(&map.buffer_snapshot)
14178 .to_display_point(map);
14179 if self.reversed {
14180 end..start
14181 } else {
14182 start..end
14183 }
14184 }
14185
14186 fn spanned_rows(
14187 &self,
14188 include_end_if_at_line_start: bool,
14189 map: &DisplaySnapshot,
14190 ) -> Range<MultiBufferRow> {
14191 let start = self.start.to_point(&map.buffer_snapshot);
14192 let mut end = self.end.to_point(&map.buffer_snapshot);
14193 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14194 end.row -= 1;
14195 }
14196
14197 let buffer_start = map.prev_line_boundary(start).0;
14198 let buffer_end = map.next_line_boundary(end).0;
14199 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14200 }
14201}
14202
14203impl<T: InvalidationRegion> InvalidationStack<T> {
14204 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14205 where
14206 S: Clone + ToOffset,
14207 {
14208 while let Some(region) = self.last() {
14209 let all_selections_inside_invalidation_ranges =
14210 if selections.len() == region.ranges().len() {
14211 selections
14212 .iter()
14213 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14214 .all(|(selection, invalidation_range)| {
14215 let head = selection.head().to_offset(buffer);
14216 invalidation_range.start <= head && invalidation_range.end >= head
14217 })
14218 } else {
14219 false
14220 };
14221
14222 if all_selections_inside_invalidation_ranges {
14223 break;
14224 } else {
14225 self.pop();
14226 }
14227 }
14228 }
14229}
14230
14231impl<T> Default for InvalidationStack<T> {
14232 fn default() -> Self {
14233 Self(Default::default())
14234 }
14235}
14236
14237impl<T> Deref for InvalidationStack<T> {
14238 type Target = Vec<T>;
14239
14240 fn deref(&self) -> &Self::Target {
14241 &self.0
14242 }
14243}
14244
14245impl<T> DerefMut for InvalidationStack<T> {
14246 fn deref_mut(&mut self) -> &mut Self::Target {
14247 &mut self.0
14248 }
14249}
14250
14251impl InvalidationRegion for SnippetState {
14252 fn ranges(&self) -> &[Range<Anchor>] {
14253 &self.ranges[self.active_index]
14254 }
14255}
14256
14257pub fn diagnostic_block_renderer(
14258 diagnostic: Diagnostic,
14259 max_message_rows: Option<u8>,
14260 allow_closing: bool,
14261 _is_valid: bool,
14262) -> RenderBlock {
14263 let (text_without_backticks, code_ranges) =
14264 highlight_diagnostic_message(&diagnostic, max_message_rows);
14265
14266 Box::new(move |cx: &mut BlockContext| {
14267 let group_id: SharedString = cx.block_id.to_string().into();
14268
14269 let mut text_style = cx.text_style().clone();
14270 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14271 let theme_settings = ThemeSettings::get_global(cx);
14272 text_style.font_family = theme_settings.buffer_font.family.clone();
14273 text_style.font_style = theme_settings.buffer_font.style;
14274 text_style.font_features = theme_settings.buffer_font.features.clone();
14275 text_style.font_weight = theme_settings.buffer_font.weight;
14276
14277 let multi_line_diagnostic = diagnostic.message.contains('\n');
14278
14279 let buttons = |diagnostic: &Diagnostic| {
14280 if multi_line_diagnostic {
14281 v_flex()
14282 } else {
14283 h_flex()
14284 }
14285 .when(allow_closing, |div| {
14286 div.children(diagnostic.is_primary.then(|| {
14287 IconButton::new("close-block", IconName::XCircle)
14288 .icon_color(Color::Muted)
14289 .size(ButtonSize::Compact)
14290 .style(ButtonStyle::Transparent)
14291 .visible_on_hover(group_id.clone())
14292 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14293 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14294 }))
14295 })
14296 .child(
14297 IconButton::new("copy-block", IconName::Copy)
14298 .icon_color(Color::Muted)
14299 .size(ButtonSize::Compact)
14300 .style(ButtonStyle::Transparent)
14301 .visible_on_hover(group_id.clone())
14302 .on_click({
14303 let message = diagnostic.message.clone();
14304 move |_click, cx| {
14305 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14306 }
14307 })
14308 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14309 )
14310 };
14311
14312 let icon_size = buttons(&diagnostic)
14313 .into_any_element()
14314 .layout_as_root(AvailableSpace::min_size(), cx);
14315
14316 h_flex()
14317 .id(cx.block_id)
14318 .group(group_id.clone())
14319 .relative()
14320 .size_full()
14321 .pl(cx.gutter_dimensions.width)
14322 .w(cx.max_width - cx.gutter_dimensions.full_width())
14323 .child(
14324 div()
14325 .flex()
14326 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14327 .flex_shrink(),
14328 )
14329 .child(buttons(&diagnostic))
14330 .child(div().flex().flex_shrink_0().child(
14331 StyledText::new(text_without_backticks.clone()).with_highlights(
14332 &text_style,
14333 code_ranges.iter().map(|range| {
14334 (
14335 range.clone(),
14336 HighlightStyle {
14337 font_weight: Some(FontWeight::BOLD),
14338 ..Default::default()
14339 },
14340 )
14341 }),
14342 ),
14343 ))
14344 .into_any_element()
14345 })
14346}
14347
14348pub fn highlight_diagnostic_message(
14349 diagnostic: &Diagnostic,
14350 mut max_message_rows: Option<u8>,
14351) -> (SharedString, Vec<Range<usize>>) {
14352 let mut text_without_backticks = String::new();
14353 let mut code_ranges = Vec::new();
14354
14355 if let Some(source) = &diagnostic.source {
14356 text_without_backticks.push_str(source);
14357 code_ranges.push(0..source.len());
14358 text_without_backticks.push_str(": ");
14359 }
14360
14361 let mut prev_offset = 0;
14362 let mut in_code_block = false;
14363 let has_row_limit = max_message_rows.is_some();
14364 let mut newline_indices = diagnostic
14365 .message
14366 .match_indices('\n')
14367 .filter(|_| has_row_limit)
14368 .map(|(ix, _)| ix)
14369 .fuse()
14370 .peekable();
14371
14372 for (quote_ix, _) in diagnostic
14373 .message
14374 .match_indices('`')
14375 .chain([(diagnostic.message.len(), "")])
14376 {
14377 let mut first_newline_ix = None;
14378 let mut last_newline_ix = None;
14379 while let Some(newline_ix) = newline_indices.peek() {
14380 if *newline_ix < quote_ix {
14381 if first_newline_ix.is_none() {
14382 first_newline_ix = Some(*newline_ix);
14383 }
14384 last_newline_ix = Some(*newline_ix);
14385
14386 if let Some(rows_left) = &mut max_message_rows {
14387 if *rows_left == 0 {
14388 break;
14389 } else {
14390 *rows_left -= 1;
14391 }
14392 }
14393 let _ = newline_indices.next();
14394 } else {
14395 break;
14396 }
14397 }
14398 let prev_len = text_without_backticks.len();
14399 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14400 text_without_backticks.push_str(new_text);
14401 if in_code_block {
14402 code_ranges.push(prev_len..text_without_backticks.len());
14403 }
14404 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14405 in_code_block = !in_code_block;
14406 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14407 text_without_backticks.push_str("...");
14408 break;
14409 }
14410 }
14411
14412 (text_without_backticks.into(), code_ranges)
14413}
14414
14415fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14416 match severity {
14417 DiagnosticSeverity::ERROR => colors.error,
14418 DiagnosticSeverity::WARNING => colors.warning,
14419 DiagnosticSeverity::INFORMATION => colors.info,
14420 DiagnosticSeverity::HINT => colors.info,
14421 _ => colors.ignored,
14422 }
14423}
14424
14425pub fn styled_runs_for_code_label<'a>(
14426 label: &'a CodeLabel,
14427 syntax_theme: &'a theme::SyntaxTheme,
14428) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14429 let fade_out = HighlightStyle {
14430 fade_out: Some(0.35),
14431 ..Default::default()
14432 };
14433
14434 let mut prev_end = label.filter_range.end;
14435 label
14436 .runs
14437 .iter()
14438 .enumerate()
14439 .flat_map(move |(ix, (range, highlight_id))| {
14440 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14441 style
14442 } else {
14443 return Default::default();
14444 };
14445 let mut muted_style = style;
14446 muted_style.highlight(fade_out);
14447
14448 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14449 if range.start >= label.filter_range.end {
14450 if range.start > prev_end {
14451 runs.push((prev_end..range.start, fade_out));
14452 }
14453 runs.push((range.clone(), muted_style));
14454 } else if range.end <= label.filter_range.end {
14455 runs.push((range.clone(), style));
14456 } else {
14457 runs.push((range.start..label.filter_range.end, style));
14458 runs.push((label.filter_range.end..range.end, muted_style));
14459 }
14460 prev_end = cmp::max(prev_end, range.end);
14461
14462 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14463 runs.push((prev_end..label.text.len(), fade_out));
14464 }
14465
14466 runs
14467 })
14468}
14469
14470pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14471 let mut prev_index = 0;
14472 let mut prev_codepoint: Option<char> = None;
14473 text.char_indices()
14474 .chain([(text.len(), '\0')])
14475 .filter_map(move |(index, codepoint)| {
14476 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14477 let is_boundary = index == text.len()
14478 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14479 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14480 if is_boundary {
14481 let chunk = &text[prev_index..index];
14482 prev_index = index;
14483 Some(chunk)
14484 } else {
14485 None
14486 }
14487 })
14488}
14489
14490pub trait RangeToAnchorExt: Sized {
14491 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14492
14493 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14494 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14495 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14496 }
14497}
14498
14499impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14500 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14501 let start_offset = self.start.to_offset(snapshot);
14502 let end_offset = self.end.to_offset(snapshot);
14503 if start_offset == end_offset {
14504 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14505 } else {
14506 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14507 }
14508 }
14509}
14510
14511pub trait RowExt {
14512 fn as_f32(&self) -> f32;
14513
14514 fn next_row(&self) -> Self;
14515
14516 fn previous_row(&self) -> Self;
14517
14518 fn minus(&self, other: Self) -> u32;
14519}
14520
14521impl RowExt for DisplayRow {
14522 fn as_f32(&self) -> f32 {
14523 self.0 as f32
14524 }
14525
14526 fn next_row(&self) -> Self {
14527 Self(self.0 + 1)
14528 }
14529
14530 fn previous_row(&self) -> Self {
14531 Self(self.0.saturating_sub(1))
14532 }
14533
14534 fn minus(&self, other: Self) -> u32 {
14535 self.0 - other.0
14536 }
14537}
14538
14539impl RowExt for MultiBufferRow {
14540 fn as_f32(&self) -> f32 {
14541 self.0 as f32
14542 }
14543
14544 fn next_row(&self) -> Self {
14545 Self(self.0 + 1)
14546 }
14547
14548 fn previous_row(&self) -> Self {
14549 Self(self.0.saturating_sub(1))
14550 }
14551
14552 fn minus(&self, other: Self) -> u32 {
14553 self.0 - other.0
14554 }
14555}
14556
14557trait RowRangeExt {
14558 type Row;
14559
14560 fn len(&self) -> usize;
14561
14562 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14563}
14564
14565impl RowRangeExt for Range<MultiBufferRow> {
14566 type Row = MultiBufferRow;
14567
14568 fn len(&self) -> usize {
14569 (self.end.0 - self.start.0) as usize
14570 }
14571
14572 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14573 (self.start.0..self.end.0).map(MultiBufferRow)
14574 }
14575}
14576
14577impl RowRangeExt for Range<DisplayRow> {
14578 type Row = DisplayRow;
14579
14580 fn len(&self) -> usize {
14581 (self.end.0 - self.start.0) as usize
14582 }
14583
14584 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14585 (self.start.0..self.end.0).map(DisplayRow)
14586 }
14587}
14588
14589fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14590 if hunk.diff_base_byte_range.is_empty() {
14591 DiffHunkStatus::Added
14592 } else if hunk.row_range.is_empty() {
14593 DiffHunkStatus::Removed
14594 } else {
14595 DiffHunkStatus::Modified
14596 }
14597}
14598
14599/// If select range has more than one line, we
14600/// just point the cursor to range.start.
14601fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14602 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14603 range
14604 } else {
14605 range.start..range.start
14606 }
14607}