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::*;
52pub use actions::{OpenExcerpts, OpenExcerptsSplit};
53use aho_corasick::AhoCorasick;
54use anyhow::{anyhow, Context as _, Result};
55use blink_manager::BlinkManager;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
60use debounced_delay::DebouncedDelay;
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::{StringMatch, StringMatchCandidate};
73use git::blame::GitBlame;
74use gpui::{
75 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
76 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
77 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
78 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
79 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
80 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
81 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
82 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
83};
84use highlight_matching_bracket::refresh_matching_bracket_highlights;
85use hover_popover::{hide_hover, HoverState};
86pub(crate) use hunk_diff::HoveredHunk;
87use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
88use indent_guides::ActiveIndentGuidesState;
89use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
90pub use inline_completion_provider::*;
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101pub use proposed_changes_editor::{
102 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
103};
104use similar::{ChangeTag, TextDiff};
105use std::iter::Peekable;
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, LanguageServerName,
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, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{
135 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
136};
137use serde::{Deserialize, Serialize};
138use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
139use smallvec::SmallVec;
140use snippet::Snippet;
141use std::{
142 any::TypeId,
143 borrow::Cow,
144 cell::RefCell,
145 cmp::{self, Ordering, Reverse},
146 mem,
147 num::NonZeroU32,
148 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
149 path::{Path, PathBuf},
150 rc::Rc,
151 sync::Arc,
152 time::{Duration, Instant},
153};
154pub use sum_tree::Bias;
155use sum_tree::TreeMap;
156use text::{BufferId, OffsetUtf16, Rope};
157use theme::{
158 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
159 ThemeColors, ThemeSettings,
160};
161use ui::{
162 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
163 ListItem, Popover, PopoverMenuHandle, Tooltip,
164};
165use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
166use workspace::item::{ItemHandle, PreviewTabsSettings};
167use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
168use workspace::{
169 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
170};
171use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
172
173use crate::hover_links::find_url;
174use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
175
176pub const FILE_HEADER_HEIGHT: u32 = 2;
177pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
178pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
179pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
180const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
181const MAX_LINE_LEN: usize = 1024;
182const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
183const MAX_SELECTION_HISTORY_LEN: usize = 1024;
184pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
185#[doc(hidden)]
186pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
187#[doc(hidden)]
188pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
189
190pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
191pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
192
193pub fn render_parsed_markdown(
194 element_id: impl Into<ElementId>,
195 parsed: &language::ParsedMarkdown,
196 editor_style: &EditorStyle,
197 workspace: Option<WeakView<Workspace>>,
198 cx: &mut WindowContext,
199) -> InteractiveText {
200 let code_span_background_color = cx
201 .theme()
202 .colors()
203 .editor_document_highlight_read_background;
204
205 let highlights = gpui::combine_highlights(
206 parsed.highlights.iter().filter_map(|(range, highlight)| {
207 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
208 Some((range.clone(), highlight))
209 }),
210 parsed
211 .regions
212 .iter()
213 .zip(&parsed.region_ranges)
214 .filter_map(|(region, range)| {
215 if region.code {
216 Some((
217 range.clone(),
218 HighlightStyle {
219 background_color: Some(code_span_background_color),
220 ..Default::default()
221 },
222 ))
223 } else {
224 None
225 }
226 }),
227 );
228
229 let mut links = Vec::new();
230 let mut link_ranges = Vec::new();
231 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
232 if let Some(link) = region.link.clone() {
233 links.push(link);
234 link_ranges.push(range.clone());
235 }
236 }
237
238 InteractiveText::new(
239 element_id,
240 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
241 )
242 .on_click(link_ranges, move |clicked_range_ix, cx| {
243 match &links[clicked_range_ix] {
244 markdown::Link::Web { url } => cx.open_url(url),
245 markdown::Link::Path { path } => {
246 if let Some(workspace) = &workspace {
247 _ = workspace.update(cx, |workspace, cx| {
248 workspace.open_abs_path(path.clone(), false, cx).detach();
249 });
250 }
251 }
252 }
253 })
254}
255
256#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
257pub(crate) enum InlayId {
258 Suggestion(usize),
259 Hint(usize),
260}
261
262impl InlayId {
263 fn id(&self) -> usize {
264 match self {
265 Self::Suggestion(id) => *id,
266 Self::Hint(id) => *id,
267 }
268 }
269}
270
271enum DiffRowHighlight {}
272enum DocumentHighlightRead {}
273enum DocumentHighlightWrite {}
274enum InputComposition {}
275
276#[derive(Copy, Clone, PartialEq, Eq)]
277pub enum Direction {
278 Prev,
279 Next,
280}
281
282#[derive(Debug, Copy, Clone, PartialEq, Eq)]
283pub enum Navigated {
284 Yes,
285 No,
286}
287
288impl Navigated {
289 pub fn from_bool(yes: bool) -> Navigated {
290 if yes {
291 Navigated::Yes
292 } else {
293 Navigated::No
294 }
295 }
296}
297
298pub fn init_settings(cx: &mut AppContext) {
299 EditorSettings::register(cx);
300}
301
302pub fn init(cx: &mut AppContext) {
303 init_settings(cx);
304
305 workspace::register_project_item::<Editor>(cx);
306 workspace::FollowableViewRegistry::register::<Editor>(cx);
307 workspace::register_serializable_item::<Editor>(cx);
308
309 cx.observe_new_views(
310 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
311 workspace.register_action(Editor::new_file);
312 workspace.register_action(Editor::new_file_vertical);
313 workspace.register_action(Editor::new_file_horizontal);
314 },
315 )
316 .detach();
317
318 cx.on_action(move |_: &workspace::NewFile, cx| {
319 let app_state = workspace::AppState::global(cx);
320 if let Some(app_state) = app_state.upgrade() {
321 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
322 Editor::new_file(workspace, &Default::default(), cx)
323 })
324 .detach();
325 }
326 });
327 cx.on_action(move |_: &workspace::NewWindow, cx| {
328 let app_state = workspace::AppState::global(cx);
329 if let Some(app_state) = app_state.upgrade() {
330 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
331 Editor::new_file(workspace, &Default::default(), cx)
332 })
333 .detach();
334 }
335 });
336}
337
338pub struct SearchWithinRange;
339
340trait InvalidationRegion {
341 fn ranges(&self) -> &[Range<Anchor>];
342}
343
344#[derive(Clone, Debug, PartialEq)]
345pub enum SelectPhase {
346 Begin {
347 position: DisplayPoint,
348 add: bool,
349 click_count: usize,
350 },
351 BeginColumnar {
352 position: DisplayPoint,
353 reset: bool,
354 goal_column: u32,
355 },
356 Extend {
357 position: DisplayPoint,
358 click_count: usize,
359 },
360 Update {
361 position: DisplayPoint,
362 goal_column: u32,
363 scroll_delta: gpui::Point<f32>,
364 },
365 End,
366}
367
368#[derive(Clone, Debug)]
369pub enum SelectMode {
370 Character,
371 Word(Range<Anchor>),
372 Line(Range<Anchor>),
373 All,
374}
375
376#[derive(Copy, Clone, PartialEq, Eq, Debug)]
377pub enum EditorMode {
378 SingleLine { auto_width: bool },
379 AutoHeight { max_lines: usize },
380 Full,
381}
382
383#[derive(Copy, Clone, Debug)]
384pub enum SoftWrap {
385 /// Prefer not to wrap at all.
386 ///
387 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
388 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
389 GitDiff,
390 /// Prefer a single line generally, unless an overly long line is encountered.
391 None,
392 /// Soft wrap lines that exceed the editor width.
393 EditorWidth,
394 /// Soft wrap lines at the preferred line length.
395 Column(u32),
396 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
397 Bounded(u32),
398}
399
400#[derive(Clone)]
401pub struct EditorStyle {
402 pub background: Hsla,
403 pub local_player: PlayerColor,
404 pub text: TextStyle,
405 pub scrollbar_width: Pixels,
406 pub syntax: Arc<SyntaxTheme>,
407 pub status: StatusColors,
408 pub inlay_hints_style: HighlightStyle,
409 pub suggestions_style: HighlightStyle,
410 pub unnecessary_code_fade: f32,
411}
412
413impl Default for EditorStyle {
414 fn default() -> Self {
415 Self {
416 background: Hsla::default(),
417 local_player: PlayerColor::default(),
418 text: TextStyle::default(),
419 scrollbar_width: Pixels::default(),
420 syntax: Default::default(),
421 // HACK: Status colors don't have a real default.
422 // We should look into removing the status colors from the editor
423 // style and retrieve them directly from the theme.
424 status: StatusColors::dark(),
425 inlay_hints_style: HighlightStyle::default(),
426 suggestions_style: HighlightStyle::default(),
427 unnecessary_code_fade: Default::default(),
428 }
429 }
430}
431
432pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
433 let show_background = language_settings::language_settings(None, None, cx)
434 .inlay_hints
435 .show_background;
436
437 HighlightStyle {
438 color: Some(cx.theme().status().hint),
439 background_color: show_background.then(|| cx.theme().status().hint_background),
440 ..HighlightStyle::default()
441 }
442}
443
444type CompletionId = usize;
445
446#[derive(Clone, Debug)]
447struct CompletionState {
448 // render_inlay_ids represents the inlay hints that are inserted
449 // for rendering the inline completions. They may be discontinuous
450 // in the event that the completion provider returns some intersection
451 // with the existing content.
452 render_inlay_ids: Vec<InlayId>,
453 // text is the resulting rope that is inserted when the user accepts a completion.
454 text: Rope,
455 // position is the position of the cursor when the completion was triggered.
456 position: multi_buffer::Anchor,
457 // delete_range is the range of text that this completion state covers.
458 // if the completion is accepted, this range should be deleted.
459 delete_range: Option<Range<multi_buffer::Anchor>>,
460}
461
462#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
463struct EditorActionId(usize);
464
465impl EditorActionId {
466 pub fn post_inc(&mut self) -> Self {
467 let answer = self.0;
468
469 *self = Self(answer + 1);
470
471 Self(answer)
472 }
473}
474
475// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
476// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
477
478type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
479type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
480
481#[derive(Default)]
482struct ScrollbarMarkerState {
483 scrollbar_size: Size<Pixels>,
484 dirty: bool,
485 markers: Arc<[PaintQuad]>,
486 pending_refresh: Option<Task<Result<()>>>,
487}
488
489impl ScrollbarMarkerState {
490 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
491 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
492 }
493}
494
495#[derive(Clone, Debug)]
496struct RunnableTasks {
497 templates: Vec<(TaskSourceKind, TaskTemplate)>,
498 offset: MultiBufferOffset,
499 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
500 column: u32,
501 // Values of all named captures, including those starting with '_'
502 extra_variables: HashMap<String, String>,
503 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
504 context_range: Range<BufferOffset>,
505}
506
507impl RunnableTasks {
508 fn resolve<'a>(
509 &'a self,
510 cx: &'a task::TaskContext,
511 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
512 self.templates.iter().filter_map(|(kind, template)| {
513 template
514 .resolve_task(&kind.to_id_base(), cx)
515 .map(|task| (kind.clone(), task))
516 })
517 }
518}
519
520#[derive(Clone)]
521struct ResolvedTasks {
522 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
523 position: Anchor,
524}
525#[derive(Copy, Clone, Debug)]
526struct MultiBufferOffset(usize);
527#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
528struct BufferOffset(usize);
529
530// Addons allow storing per-editor state in other crates (e.g. Vim)
531pub trait Addon: 'static {
532 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
533
534 fn to_any(&self) -> &dyn std::any::Any;
535}
536
537/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
538///
539/// See the [module level documentation](self) for more information.
540pub struct Editor {
541 focus_handle: FocusHandle,
542 last_focused_descendant: Option<WeakFocusHandle>,
543 /// The text buffer being edited
544 buffer: Model<MultiBuffer>,
545 /// Map of how text in the buffer should be displayed.
546 /// Handles soft wraps, folds, fake inlay text insertions, etc.
547 pub display_map: Model<DisplayMap>,
548 pub selections: SelectionsCollection,
549 pub scroll_manager: ScrollManager,
550 /// When inline assist editors are linked, they all render cursors because
551 /// typing enters text into each of them, even the ones that aren't focused.
552 pub(crate) show_cursor_when_unfocused: bool,
553 columnar_selection_tail: Option<Anchor>,
554 add_selections_state: Option<AddSelectionsState>,
555 select_next_state: Option<SelectNextState>,
556 select_prev_state: Option<SelectNextState>,
557 selection_history: SelectionHistory,
558 autoclose_regions: Vec<AutocloseRegion>,
559 snippet_stack: InvalidationStack<SnippetState>,
560 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
561 ime_transaction: Option<TransactionId>,
562 active_diagnostics: Option<ActiveDiagnosticGroup>,
563 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
564
565 project: Option<Model<Project>>,
566 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
567 completion_provider: Option<Box<dyn CompletionProvider>>,
568 collaboration_hub: Option<Box<dyn CollaborationHub>>,
569 blink_manager: Model<BlinkManager>,
570 show_cursor_names: bool,
571 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
572 pub show_local_selections: bool,
573 mode: EditorMode,
574 show_breadcrumbs: bool,
575 show_gutter: bool,
576 show_line_numbers: Option<bool>,
577 use_relative_line_numbers: Option<bool>,
578 show_git_diff_gutter: Option<bool>,
579 show_code_actions: Option<bool>,
580 show_runnables: Option<bool>,
581 show_wrap_guides: Option<bool>,
582 show_indent_guides: Option<bool>,
583 placeholder_text: Option<Arc<str>>,
584 highlight_order: usize,
585 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
586 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
587 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
588 scrollbar_marker_state: ScrollbarMarkerState,
589 active_indent_guides_state: ActiveIndentGuidesState,
590 nav_history: Option<ItemNavHistory>,
591 context_menu: RwLock<Option<ContextMenu>>,
592 mouse_context_menu: Option<MouseContextMenu>,
593 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
594 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
595 signature_help_state: SignatureHelpState,
596 auto_signature_help: Option<bool>,
597 find_all_references_task_sources: Vec<Anchor>,
598 next_completion_id: CompletionId,
599 completion_documentation_pre_resolve_debounce: DebouncedDelay,
600 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
601 code_actions_task: Option<Task<Result<()>>>,
602 document_highlights_task: Option<Task<()>>,
603 linked_editing_range_task: Option<Task<Option<()>>>,
604 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
605 pending_rename: Option<RenameState>,
606 searchable: bool,
607 cursor_shape: CursorShape,
608 current_line_highlight: Option<CurrentLineHighlight>,
609 collapse_matches: bool,
610 autoindent_mode: Option<AutoindentMode>,
611 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
612 input_enabled: bool,
613 use_modal_editing: bool,
614 read_only: bool,
615 leader_peer_id: Option<PeerId>,
616 remote_id: Option<ViewId>,
617 hover_state: HoverState,
618 gutter_hovered: bool,
619 hovered_link_state: Option<HoveredLinkState>,
620 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
621 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
622 active_inline_completion: Option<CompletionState>,
623 // enable_inline_completions is a switch that Vim can use to disable
624 // inline completions based on its mode.
625 enable_inline_completions: bool,
626 show_inline_completions_override: Option<bool>,
627 inlay_hint_cache: InlayHintCache,
628 expanded_hunks: ExpandedHunks,
629 next_inlay_id: usize,
630 _subscriptions: Vec<Subscription>,
631 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
632 gutter_dimensions: GutterDimensions,
633 style: Option<EditorStyle>,
634 text_style_refinement: Option<TextStyleRefinement>,
635 next_editor_action_id: EditorActionId,
636 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
637 use_autoclose: bool,
638 use_auto_surround: bool,
639 auto_replace_emoji_shortcode: bool,
640 show_git_blame_gutter: bool,
641 show_git_blame_inline: bool,
642 show_git_blame_inline_delay_task: Option<Task<()>>,
643 git_blame_inline_enabled: bool,
644 serialize_dirty_buffers: bool,
645 show_selection_menu: Option<bool>,
646 blame: Option<Model<GitBlame>>,
647 blame_subscription: Option<Subscription>,
648 custom_context_menu: Option<
649 Box<
650 dyn 'static
651 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
652 >,
653 >,
654 last_bounds: Option<Bounds<Pixels>>,
655 expect_bounds_change: Option<Bounds<Pixels>>,
656 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
657 tasks_update_task: Option<Task<()>>,
658 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
659 breadcrumb_header: Option<String>,
660 focused_block: Option<FocusedBlock>,
661 next_scroll_position: NextScrollCursorCenterTopBottom,
662 addons: HashMap<TypeId, Box<dyn Addon>>,
663 _scroll_cursor_center_top_bottom_task: Task<()>,
664}
665
666#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
667enum NextScrollCursorCenterTopBottom {
668 #[default]
669 Center,
670 Top,
671 Bottom,
672}
673
674impl NextScrollCursorCenterTopBottom {
675 fn next(&self) -> Self {
676 match self {
677 Self::Center => Self::Top,
678 Self::Top => Self::Bottom,
679 Self::Bottom => Self::Center,
680 }
681 }
682}
683
684#[derive(Clone)]
685pub struct EditorSnapshot {
686 pub mode: EditorMode,
687 show_gutter: bool,
688 show_line_numbers: Option<bool>,
689 show_git_diff_gutter: Option<bool>,
690 show_code_actions: Option<bool>,
691 show_runnables: Option<bool>,
692 git_blame_gutter_max_author_length: Option<usize>,
693 pub display_snapshot: DisplaySnapshot,
694 pub placeholder_text: Option<Arc<str>>,
695 is_focused: bool,
696 scroll_anchor: ScrollAnchor,
697 ongoing_scroll: OngoingScroll,
698 current_line_highlight: CurrentLineHighlight,
699 gutter_hovered: bool,
700}
701
702const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
703
704#[derive(Default, Debug, Clone, Copy)]
705pub struct GutterDimensions {
706 pub left_padding: Pixels,
707 pub right_padding: Pixels,
708 pub width: Pixels,
709 pub margin: Pixels,
710 pub git_blame_entries_width: Option<Pixels>,
711}
712
713impl GutterDimensions {
714 /// The full width of the space taken up by the gutter.
715 pub fn full_width(&self) -> Pixels {
716 self.margin + self.width
717 }
718
719 /// The width of the space reserved for the fold indicators,
720 /// use alongside 'justify_end' and `gutter_width` to
721 /// right align content with the line numbers
722 pub fn fold_area_width(&self) -> Pixels {
723 self.margin + self.right_padding
724 }
725}
726
727#[derive(Debug)]
728pub struct RemoteSelection {
729 pub replica_id: ReplicaId,
730 pub selection: Selection<Anchor>,
731 pub cursor_shape: CursorShape,
732 pub peer_id: PeerId,
733 pub line_mode: bool,
734 pub participant_index: Option<ParticipantIndex>,
735 pub user_name: Option<SharedString>,
736}
737
738#[derive(Clone, Debug)]
739struct SelectionHistoryEntry {
740 selections: Arc<[Selection<Anchor>]>,
741 select_next_state: Option<SelectNextState>,
742 select_prev_state: Option<SelectNextState>,
743 add_selections_state: Option<AddSelectionsState>,
744}
745
746enum SelectionHistoryMode {
747 Normal,
748 Undoing,
749 Redoing,
750}
751
752#[derive(Clone, PartialEq, Eq, Hash)]
753struct HoveredCursor {
754 replica_id: u16,
755 selection_id: usize,
756}
757
758impl Default for SelectionHistoryMode {
759 fn default() -> Self {
760 Self::Normal
761 }
762}
763
764#[derive(Default)]
765struct SelectionHistory {
766 #[allow(clippy::type_complexity)]
767 selections_by_transaction:
768 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
769 mode: SelectionHistoryMode,
770 undo_stack: VecDeque<SelectionHistoryEntry>,
771 redo_stack: VecDeque<SelectionHistoryEntry>,
772}
773
774impl SelectionHistory {
775 fn insert_transaction(
776 &mut self,
777 transaction_id: TransactionId,
778 selections: Arc<[Selection<Anchor>]>,
779 ) {
780 self.selections_by_transaction
781 .insert(transaction_id, (selections, None));
782 }
783
784 #[allow(clippy::type_complexity)]
785 fn transaction(
786 &self,
787 transaction_id: TransactionId,
788 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
789 self.selections_by_transaction.get(&transaction_id)
790 }
791
792 #[allow(clippy::type_complexity)]
793 fn transaction_mut(
794 &mut self,
795 transaction_id: TransactionId,
796 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
797 self.selections_by_transaction.get_mut(&transaction_id)
798 }
799
800 fn push(&mut self, entry: SelectionHistoryEntry) {
801 if !entry.selections.is_empty() {
802 match self.mode {
803 SelectionHistoryMode::Normal => {
804 self.push_undo(entry);
805 self.redo_stack.clear();
806 }
807 SelectionHistoryMode::Undoing => self.push_redo(entry),
808 SelectionHistoryMode::Redoing => self.push_undo(entry),
809 }
810 }
811 }
812
813 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
814 if self
815 .undo_stack
816 .back()
817 .map_or(true, |e| e.selections != entry.selections)
818 {
819 self.undo_stack.push_back(entry);
820 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
821 self.undo_stack.pop_front();
822 }
823 }
824 }
825
826 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
827 if self
828 .redo_stack
829 .back()
830 .map_or(true, |e| e.selections != entry.selections)
831 {
832 self.redo_stack.push_back(entry);
833 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
834 self.redo_stack.pop_front();
835 }
836 }
837 }
838}
839
840struct RowHighlight {
841 index: usize,
842 range: Range<Anchor>,
843 color: Hsla,
844 should_autoscroll: bool,
845}
846
847#[derive(Clone, Debug)]
848struct AddSelectionsState {
849 above: bool,
850 stack: Vec<usize>,
851}
852
853#[derive(Clone)]
854struct SelectNextState {
855 query: AhoCorasick,
856 wordwise: bool,
857 done: bool,
858}
859
860impl std::fmt::Debug for SelectNextState {
861 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
862 f.debug_struct(std::any::type_name::<Self>())
863 .field("wordwise", &self.wordwise)
864 .field("done", &self.done)
865 .finish()
866 }
867}
868
869#[derive(Debug)]
870struct AutocloseRegion {
871 selection_id: usize,
872 range: Range<Anchor>,
873 pair: BracketPair,
874}
875
876#[derive(Debug)]
877struct SnippetState {
878 ranges: Vec<Vec<Range<Anchor>>>,
879 active_index: usize,
880}
881
882#[doc(hidden)]
883pub struct RenameState {
884 pub range: Range<Anchor>,
885 pub old_name: Arc<str>,
886 pub editor: View<Editor>,
887 block_id: CustomBlockId,
888}
889
890struct InvalidationStack<T>(Vec<T>);
891
892struct RegisteredInlineCompletionProvider {
893 provider: Arc<dyn InlineCompletionProviderHandle>,
894 _subscription: Subscription,
895}
896
897enum ContextMenu {
898 Completions(CompletionsMenu),
899 CodeActions(CodeActionsMenu),
900}
901
902impl ContextMenu {
903 fn select_first(
904 &mut self,
905 provider: Option<&dyn CompletionProvider>,
906 cx: &mut ViewContext<Editor>,
907 ) -> bool {
908 if self.visible() {
909 match self {
910 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
911 ContextMenu::CodeActions(menu) => menu.select_first(cx),
912 }
913 true
914 } else {
915 false
916 }
917 }
918
919 fn select_prev(
920 &mut self,
921 provider: Option<&dyn CompletionProvider>,
922 cx: &mut ViewContext<Editor>,
923 ) -> bool {
924 if self.visible() {
925 match self {
926 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
927 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
928 }
929 true
930 } else {
931 false
932 }
933 }
934
935 fn select_next(
936 &mut self,
937 provider: Option<&dyn CompletionProvider>,
938 cx: &mut ViewContext<Editor>,
939 ) -> bool {
940 if self.visible() {
941 match self {
942 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
943 ContextMenu::CodeActions(menu) => menu.select_next(cx),
944 }
945 true
946 } else {
947 false
948 }
949 }
950
951 fn select_last(
952 &mut self,
953 provider: Option<&dyn CompletionProvider>,
954 cx: &mut ViewContext<Editor>,
955 ) -> bool {
956 if self.visible() {
957 match self {
958 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
959 ContextMenu::CodeActions(menu) => menu.select_last(cx),
960 }
961 true
962 } else {
963 false
964 }
965 }
966
967 fn visible(&self) -> bool {
968 match self {
969 ContextMenu::Completions(menu) => menu.visible(),
970 ContextMenu::CodeActions(menu) => menu.visible(),
971 }
972 }
973
974 fn render(
975 &self,
976 cursor_position: DisplayPoint,
977 style: &EditorStyle,
978 max_height: Pixels,
979 workspace: Option<WeakView<Workspace>>,
980 cx: &mut ViewContext<Editor>,
981 ) -> (ContextMenuOrigin, AnyElement) {
982 match self {
983 ContextMenu::Completions(menu) => (
984 ContextMenuOrigin::EditorPoint(cursor_position),
985 menu.render(style, max_height, workspace, cx),
986 ),
987 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
988 }
989 }
990}
991
992enum ContextMenuOrigin {
993 EditorPoint(DisplayPoint),
994 GutterIndicator(DisplayRow),
995}
996
997#[derive(Clone)]
998struct CompletionsMenu {
999 id: CompletionId,
1000 sort_completions: bool,
1001 initial_position: Anchor,
1002 buffer: Model<Buffer>,
1003 completions: Arc<RwLock<Box<[Completion]>>>,
1004 match_candidates: Arc<[StringMatchCandidate]>,
1005 matches: Arc<[StringMatch]>,
1006 selected_item: usize,
1007 scroll_handle: UniformListScrollHandle,
1008 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
1009}
1010
1011impl CompletionsMenu {
1012 fn select_first(
1013 &mut self,
1014 provider: Option<&dyn CompletionProvider>,
1015 cx: &mut ViewContext<Editor>,
1016 ) {
1017 self.selected_item = 0;
1018 self.scroll_handle
1019 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1020 self.attempt_resolve_selected_completion_documentation(provider, cx);
1021 cx.notify();
1022 }
1023
1024 fn select_prev(
1025 &mut self,
1026 provider: Option<&dyn CompletionProvider>,
1027 cx: &mut ViewContext<Editor>,
1028 ) {
1029 if self.selected_item > 0 {
1030 self.selected_item -= 1;
1031 } else {
1032 self.selected_item = self.matches.len() - 1;
1033 }
1034 self.scroll_handle
1035 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1036 self.attempt_resolve_selected_completion_documentation(provider, cx);
1037 cx.notify();
1038 }
1039
1040 fn select_next(
1041 &mut self,
1042 provider: Option<&dyn CompletionProvider>,
1043 cx: &mut ViewContext<Editor>,
1044 ) {
1045 if self.selected_item + 1 < self.matches.len() {
1046 self.selected_item += 1;
1047 } else {
1048 self.selected_item = 0;
1049 }
1050 self.scroll_handle
1051 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1052 self.attempt_resolve_selected_completion_documentation(provider, cx);
1053 cx.notify();
1054 }
1055
1056 fn select_last(
1057 &mut self,
1058 provider: Option<&dyn CompletionProvider>,
1059 cx: &mut ViewContext<Editor>,
1060 ) {
1061 self.selected_item = self.matches.len() - 1;
1062 self.scroll_handle
1063 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1064 self.attempt_resolve_selected_completion_documentation(provider, cx);
1065 cx.notify();
1066 }
1067
1068 fn pre_resolve_completion_documentation(
1069 buffer: Model<Buffer>,
1070 completions: Arc<RwLock<Box<[Completion]>>>,
1071 matches: Arc<[StringMatch]>,
1072 editor: &Editor,
1073 cx: &mut ViewContext<Editor>,
1074 ) -> Task<()> {
1075 let settings = EditorSettings::get_global(cx);
1076 if !settings.show_completion_documentation {
1077 return Task::ready(());
1078 }
1079
1080 let Some(provider) = editor.completion_provider.as_ref() else {
1081 return Task::ready(());
1082 };
1083
1084 let resolve_task = provider.resolve_completions(
1085 buffer,
1086 matches.iter().map(|m| m.candidate_id).collect(),
1087 completions.clone(),
1088 cx,
1089 );
1090
1091 cx.spawn(move |this, mut cx| async move {
1092 if let Some(true) = resolve_task.await.log_err() {
1093 this.update(&mut cx, |_, cx| cx.notify()).ok();
1094 }
1095 })
1096 }
1097
1098 fn attempt_resolve_selected_completion_documentation(
1099 &mut self,
1100 provider: Option<&dyn CompletionProvider>,
1101 cx: &mut ViewContext<Editor>,
1102 ) {
1103 let settings = EditorSettings::get_global(cx);
1104 if !settings.show_completion_documentation {
1105 return;
1106 }
1107
1108 let completion_index = self.matches[self.selected_item].candidate_id;
1109 let Some(provider) = provider else {
1110 return;
1111 };
1112
1113 let resolve_task = provider.resolve_completions(
1114 self.buffer.clone(),
1115 vec![completion_index],
1116 self.completions.clone(),
1117 cx,
1118 );
1119
1120 let delay_ms =
1121 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1122 let delay = Duration::from_millis(delay_ms);
1123
1124 self.selected_completion_documentation_resolve_debounce
1125 .lock()
1126 .fire_new(delay, cx, |_, cx| {
1127 cx.spawn(move |this, mut cx| async move {
1128 if let Some(true) = resolve_task.await.log_err() {
1129 this.update(&mut cx, |_, cx| cx.notify()).ok();
1130 }
1131 })
1132 });
1133 }
1134
1135 fn visible(&self) -> bool {
1136 !self.matches.is_empty()
1137 }
1138
1139 fn render(
1140 &self,
1141 style: &EditorStyle,
1142 max_height: Pixels,
1143 workspace: Option<WeakView<Workspace>>,
1144 cx: &mut ViewContext<Editor>,
1145 ) -> AnyElement {
1146 let settings = EditorSettings::get_global(cx);
1147 let show_completion_documentation = settings.show_completion_documentation;
1148
1149 let widest_completion_ix = self
1150 .matches
1151 .iter()
1152 .enumerate()
1153 .max_by_key(|(_, mat)| {
1154 let completions = self.completions.read();
1155 let completion = &completions[mat.candidate_id];
1156 let documentation = &completion.documentation;
1157
1158 let mut len = completion.label.text.chars().count();
1159 if let Some(Documentation::SingleLine(text)) = documentation {
1160 if show_completion_documentation {
1161 len += text.chars().count();
1162 }
1163 }
1164
1165 len
1166 })
1167 .map(|(ix, _)| ix);
1168
1169 let completions = self.completions.clone();
1170 let matches = self.matches.clone();
1171 let selected_item = self.selected_item;
1172 let style = style.clone();
1173
1174 let multiline_docs = if show_completion_documentation {
1175 let mat = &self.matches[selected_item];
1176 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1177 Some(Documentation::MultiLinePlainText(text)) => {
1178 Some(div().child(SharedString::from(text.clone())))
1179 }
1180 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1181 Some(div().child(render_parsed_markdown(
1182 "completions_markdown",
1183 parsed,
1184 &style,
1185 workspace,
1186 cx,
1187 )))
1188 }
1189 _ => None,
1190 };
1191 multiline_docs.map(|div| {
1192 div.id("multiline_docs")
1193 .max_h(max_height)
1194 .flex_1()
1195 .px_1p5()
1196 .py_1()
1197 .min_w(px(260.))
1198 .max_w(px(640.))
1199 .w(px(500.))
1200 .overflow_y_scroll()
1201 .occlude()
1202 })
1203 } else {
1204 None
1205 };
1206
1207 let list = uniform_list(
1208 cx.view().clone(),
1209 "completions",
1210 matches.len(),
1211 move |_editor, range, cx| {
1212 let start_ix = range.start;
1213 let completions_guard = completions.read();
1214
1215 matches[range]
1216 .iter()
1217 .enumerate()
1218 .map(|(ix, mat)| {
1219 let item_ix = start_ix + ix;
1220 let candidate_id = mat.candidate_id;
1221 let completion = &completions_guard[candidate_id];
1222
1223 let documentation = if show_completion_documentation {
1224 &completion.documentation
1225 } else {
1226 &None
1227 };
1228
1229 let highlights = gpui::combine_highlights(
1230 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1231 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1232 |(range, mut highlight)| {
1233 // Ignore font weight for syntax highlighting, as we'll use it
1234 // for fuzzy matches.
1235 highlight.font_weight = None;
1236
1237 if completion.lsp_completion.deprecated.unwrap_or(false) {
1238 highlight.strikethrough = Some(StrikethroughStyle {
1239 thickness: 1.0.into(),
1240 ..Default::default()
1241 });
1242 highlight.color = Some(cx.theme().colors().text_muted);
1243 }
1244
1245 (range, highlight)
1246 },
1247 ),
1248 );
1249 let completion_label = StyledText::new(completion.label.text.clone())
1250 .with_highlights(&style.text, highlights);
1251 let documentation_label =
1252 if let Some(Documentation::SingleLine(text)) = documentation {
1253 if text.trim().is_empty() {
1254 None
1255 } else {
1256 Some(
1257 Label::new(text.clone())
1258 .ml_4()
1259 .size(LabelSize::Small)
1260 .color(Color::Muted),
1261 )
1262 }
1263 } else {
1264 None
1265 };
1266
1267 let color_swatch = completion
1268 .color()
1269 .map(|color| div().size_4().bg(color).rounded_sm());
1270
1271 div().min_w(px(220.)).max_w(px(540.)).child(
1272 ListItem::new(mat.candidate_id)
1273 .inset(true)
1274 .selected(item_ix == selected_item)
1275 .on_click(cx.listener(move |editor, _event, cx| {
1276 cx.stop_propagation();
1277 if let Some(task) = editor.confirm_completion(
1278 &ConfirmCompletion {
1279 item_ix: Some(item_ix),
1280 },
1281 cx,
1282 ) {
1283 task.detach_and_log_err(cx)
1284 }
1285 }))
1286 .start_slot::<Div>(color_swatch)
1287 .child(h_flex().overflow_hidden().child(completion_label))
1288 .end_slot::<Label>(documentation_label),
1289 )
1290 })
1291 .collect()
1292 },
1293 )
1294 .occlude()
1295 .max_h(max_height)
1296 .track_scroll(self.scroll_handle.clone())
1297 .with_width_from_item(widest_completion_ix)
1298 .with_sizing_behavior(ListSizingBehavior::Infer);
1299
1300 Popover::new()
1301 .child(list)
1302 .when_some(multiline_docs, |popover, multiline_docs| {
1303 popover.aside(multiline_docs)
1304 })
1305 .into_any_element()
1306 }
1307
1308 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1309 let mut matches = if let Some(query) = query {
1310 fuzzy::match_strings(
1311 &self.match_candidates,
1312 query,
1313 query.chars().any(|c| c.is_uppercase()),
1314 100,
1315 &Default::default(),
1316 executor,
1317 )
1318 .await
1319 } else {
1320 self.match_candidates
1321 .iter()
1322 .enumerate()
1323 .map(|(candidate_id, candidate)| StringMatch {
1324 candidate_id,
1325 score: Default::default(),
1326 positions: Default::default(),
1327 string: candidate.string.clone(),
1328 })
1329 .collect()
1330 };
1331
1332 // Remove all candidates where the query's start does not match the start of any word in the candidate
1333 if let Some(query) = query {
1334 if let Some(query_start) = query.chars().next() {
1335 matches.retain(|string_match| {
1336 split_words(&string_match.string).any(|word| {
1337 // Check that the first codepoint of the word as lowercase matches the first
1338 // codepoint of the query as lowercase
1339 word.chars()
1340 .flat_map(|codepoint| codepoint.to_lowercase())
1341 .zip(query_start.to_lowercase())
1342 .all(|(word_cp, query_cp)| word_cp == query_cp)
1343 })
1344 });
1345 }
1346 }
1347
1348 let completions = self.completions.read();
1349 if self.sort_completions {
1350 matches.sort_unstable_by_key(|mat| {
1351 // We do want to strike a balance here between what the language server tells us
1352 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1353 // `Creat` and there is a local variable called `CreateComponent`).
1354 // So what we do is: we bucket all matches into two buckets
1355 // - Strong matches
1356 // - Weak matches
1357 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1358 // and the Weak matches are the rest.
1359 //
1360 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1361 // matches, we prefer language-server sort_text first.
1362 //
1363 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1364 // Rest of the matches(weak) can be sorted as language-server expects.
1365
1366 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1367 enum MatchScore<'a> {
1368 Strong {
1369 score: Reverse<OrderedFloat<f64>>,
1370 sort_text: Option<&'a str>,
1371 sort_key: (usize, &'a str),
1372 },
1373 Weak {
1374 sort_text: Option<&'a str>,
1375 score: Reverse<OrderedFloat<f64>>,
1376 sort_key: (usize, &'a str),
1377 },
1378 }
1379
1380 let completion = &completions[mat.candidate_id];
1381 let sort_key = completion.sort_key();
1382 let sort_text = completion.lsp_completion.sort_text.as_deref();
1383 let score = Reverse(OrderedFloat(mat.score));
1384
1385 if mat.score >= 0.2 {
1386 MatchScore::Strong {
1387 score,
1388 sort_text,
1389 sort_key,
1390 }
1391 } else {
1392 MatchScore::Weak {
1393 sort_text,
1394 score,
1395 sort_key,
1396 }
1397 }
1398 });
1399 }
1400
1401 for mat in &mut matches {
1402 let completion = &completions[mat.candidate_id];
1403 mat.string.clone_from(&completion.label.text);
1404 for position in &mut mat.positions {
1405 *position += completion.label.filter_range.start;
1406 }
1407 }
1408 drop(completions);
1409
1410 self.matches = matches.into();
1411 self.selected_item = 0;
1412 }
1413}
1414
1415struct AvailableCodeAction {
1416 excerpt_id: ExcerptId,
1417 action: CodeAction,
1418 provider: Arc<dyn CodeActionProvider>,
1419}
1420
1421#[derive(Clone)]
1422struct CodeActionContents {
1423 tasks: Option<Arc<ResolvedTasks>>,
1424 actions: Option<Arc<[AvailableCodeAction]>>,
1425}
1426
1427impl CodeActionContents {
1428 fn len(&self) -> usize {
1429 match (&self.tasks, &self.actions) {
1430 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1431 (Some(tasks), None) => tasks.templates.len(),
1432 (None, Some(actions)) => actions.len(),
1433 (None, None) => 0,
1434 }
1435 }
1436
1437 fn is_empty(&self) -> bool {
1438 match (&self.tasks, &self.actions) {
1439 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1440 (Some(tasks), None) => tasks.templates.is_empty(),
1441 (None, Some(actions)) => actions.is_empty(),
1442 (None, None) => true,
1443 }
1444 }
1445
1446 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1447 self.tasks
1448 .iter()
1449 .flat_map(|tasks| {
1450 tasks
1451 .templates
1452 .iter()
1453 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1454 })
1455 .chain(self.actions.iter().flat_map(|actions| {
1456 actions.iter().map(|available| CodeActionsItem::CodeAction {
1457 excerpt_id: available.excerpt_id,
1458 action: available.action.clone(),
1459 provider: available.provider.clone(),
1460 })
1461 }))
1462 }
1463 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1464 match (&self.tasks, &self.actions) {
1465 (Some(tasks), Some(actions)) => {
1466 if index < tasks.templates.len() {
1467 tasks
1468 .templates
1469 .get(index)
1470 .cloned()
1471 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1472 } else {
1473 actions.get(index - tasks.templates.len()).map(|available| {
1474 CodeActionsItem::CodeAction {
1475 excerpt_id: available.excerpt_id,
1476 action: available.action.clone(),
1477 provider: available.provider.clone(),
1478 }
1479 })
1480 }
1481 }
1482 (Some(tasks), None) => tasks
1483 .templates
1484 .get(index)
1485 .cloned()
1486 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1487 (None, Some(actions)) => {
1488 actions
1489 .get(index)
1490 .map(|available| CodeActionsItem::CodeAction {
1491 excerpt_id: available.excerpt_id,
1492 action: available.action.clone(),
1493 provider: available.provider.clone(),
1494 })
1495 }
1496 (None, None) => None,
1497 }
1498 }
1499}
1500
1501#[allow(clippy::large_enum_variant)]
1502#[derive(Clone)]
1503enum CodeActionsItem {
1504 Task(TaskSourceKind, ResolvedTask),
1505 CodeAction {
1506 excerpt_id: ExcerptId,
1507 action: CodeAction,
1508 provider: Arc<dyn CodeActionProvider>,
1509 },
1510}
1511
1512impl CodeActionsItem {
1513 fn as_task(&self) -> Option<&ResolvedTask> {
1514 let Self::Task(_, task) = self else {
1515 return None;
1516 };
1517 Some(task)
1518 }
1519 fn as_code_action(&self) -> Option<&CodeAction> {
1520 let Self::CodeAction { action, .. } = self else {
1521 return None;
1522 };
1523 Some(action)
1524 }
1525 fn label(&self) -> String {
1526 match self {
1527 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1528 Self::Task(_, task) => task.resolved_label.clone(),
1529 }
1530 }
1531}
1532
1533struct CodeActionsMenu {
1534 actions: CodeActionContents,
1535 buffer: Model<Buffer>,
1536 selected_item: usize,
1537 scroll_handle: UniformListScrollHandle,
1538 deployed_from_indicator: Option<DisplayRow>,
1539}
1540
1541impl CodeActionsMenu {
1542 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1543 self.selected_item = 0;
1544 self.scroll_handle
1545 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1546 cx.notify()
1547 }
1548
1549 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1550 if self.selected_item > 0 {
1551 self.selected_item -= 1;
1552 } else {
1553 self.selected_item = self.actions.len() - 1;
1554 }
1555 self.scroll_handle
1556 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1557 cx.notify();
1558 }
1559
1560 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1561 if self.selected_item + 1 < self.actions.len() {
1562 self.selected_item += 1;
1563 } else {
1564 self.selected_item = 0;
1565 }
1566 self.scroll_handle
1567 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1568 cx.notify();
1569 }
1570
1571 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1572 self.selected_item = self.actions.len() - 1;
1573 self.scroll_handle
1574 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1575 cx.notify()
1576 }
1577
1578 fn visible(&self) -> bool {
1579 !self.actions.is_empty()
1580 }
1581
1582 fn render(
1583 &self,
1584 cursor_position: DisplayPoint,
1585 _style: &EditorStyle,
1586 max_height: Pixels,
1587 cx: &mut ViewContext<Editor>,
1588 ) -> (ContextMenuOrigin, AnyElement) {
1589 let actions = self.actions.clone();
1590 let selected_item = self.selected_item;
1591 let element = uniform_list(
1592 cx.view().clone(),
1593 "code_actions_menu",
1594 self.actions.len(),
1595 move |_this, range, cx| {
1596 actions
1597 .iter()
1598 .skip(range.start)
1599 .take(range.end - range.start)
1600 .enumerate()
1601 .map(|(ix, action)| {
1602 let item_ix = range.start + ix;
1603 let selected = selected_item == item_ix;
1604 let colors = cx.theme().colors();
1605 div()
1606 .px_1()
1607 .rounded_md()
1608 .text_color(colors.text)
1609 .when(selected, |style| {
1610 style
1611 .bg(colors.element_active)
1612 .text_color(colors.text_accent)
1613 })
1614 .hover(|style| {
1615 style
1616 .bg(colors.element_hover)
1617 .text_color(colors.text_accent)
1618 })
1619 .whitespace_nowrap()
1620 .when_some(action.as_code_action(), |this, action| {
1621 this.on_mouse_down(
1622 MouseButton::Left,
1623 cx.listener(move |editor, _, cx| {
1624 cx.stop_propagation();
1625 if let Some(task) = editor.confirm_code_action(
1626 &ConfirmCodeAction {
1627 item_ix: Some(item_ix),
1628 },
1629 cx,
1630 ) {
1631 task.detach_and_log_err(cx)
1632 }
1633 }),
1634 )
1635 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1636 .child(SharedString::from(action.lsp_action.title.clone()))
1637 })
1638 .when_some(action.as_task(), |this, task| {
1639 this.on_mouse_down(
1640 MouseButton::Left,
1641 cx.listener(move |editor, _, cx| {
1642 cx.stop_propagation();
1643 if let Some(task) = editor.confirm_code_action(
1644 &ConfirmCodeAction {
1645 item_ix: Some(item_ix),
1646 },
1647 cx,
1648 ) {
1649 task.detach_and_log_err(cx)
1650 }
1651 }),
1652 )
1653 .child(SharedString::from(task.resolved_label.clone()))
1654 })
1655 })
1656 .collect()
1657 },
1658 )
1659 .elevation_1(cx)
1660 .p_1()
1661 .max_h(max_height)
1662 .occlude()
1663 .track_scroll(self.scroll_handle.clone())
1664 .with_width_from_item(
1665 self.actions
1666 .iter()
1667 .enumerate()
1668 .max_by_key(|(_, action)| match action {
1669 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1670 CodeActionsItem::CodeAction { action, .. } => {
1671 action.lsp_action.title.chars().count()
1672 }
1673 })
1674 .map(|(ix, _)| ix),
1675 )
1676 .with_sizing_behavior(ListSizingBehavior::Infer)
1677 .into_any_element();
1678
1679 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1680 ContextMenuOrigin::GutterIndicator(row)
1681 } else {
1682 ContextMenuOrigin::EditorPoint(cursor_position)
1683 };
1684
1685 (cursor_position, element)
1686 }
1687}
1688
1689#[derive(Debug)]
1690struct ActiveDiagnosticGroup {
1691 primary_range: Range<Anchor>,
1692 primary_message: String,
1693 group_id: usize,
1694 blocks: HashMap<CustomBlockId, Diagnostic>,
1695 is_valid: bool,
1696}
1697
1698#[derive(Serialize, Deserialize, Clone, Debug)]
1699pub struct ClipboardSelection {
1700 pub len: usize,
1701 pub is_entire_line: bool,
1702 pub first_line_indent: u32,
1703}
1704
1705#[derive(Debug)]
1706pub(crate) struct NavigationData {
1707 cursor_anchor: Anchor,
1708 cursor_position: Point,
1709 scroll_anchor: ScrollAnchor,
1710 scroll_top_row: u32,
1711}
1712
1713#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1714pub enum GotoDefinitionKind {
1715 Symbol,
1716 Declaration,
1717 Type,
1718 Implementation,
1719}
1720
1721#[derive(Debug, Clone)]
1722enum InlayHintRefreshReason {
1723 Toggle(bool),
1724 SettingsChange(InlayHintSettings),
1725 NewLinesShown,
1726 BufferEdited(HashSet<Arc<Language>>),
1727 RefreshRequested,
1728 ExcerptsRemoved(Vec<ExcerptId>),
1729}
1730
1731impl InlayHintRefreshReason {
1732 fn description(&self) -> &'static str {
1733 match self {
1734 Self::Toggle(_) => "toggle",
1735 Self::SettingsChange(_) => "settings change",
1736 Self::NewLinesShown => "new lines shown",
1737 Self::BufferEdited(_) => "buffer edited",
1738 Self::RefreshRequested => "refresh requested",
1739 Self::ExcerptsRemoved(_) => "excerpts removed",
1740 }
1741 }
1742}
1743
1744pub(crate) struct FocusedBlock {
1745 id: BlockId,
1746 focus_handle: WeakFocusHandle,
1747}
1748
1749#[derive(Clone)]
1750struct JumpData {
1751 excerpt_id: ExcerptId,
1752 position: Point,
1753 anchor: text::Anchor,
1754 path: Option<project::ProjectPath>,
1755 line_offset_from_top: u32,
1756}
1757
1758impl Editor {
1759 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1760 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1761 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1762 Self::new(
1763 EditorMode::SingleLine { auto_width: false },
1764 buffer,
1765 None,
1766 false,
1767 cx,
1768 )
1769 }
1770
1771 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1772 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1773 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1774 Self::new(EditorMode::Full, buffer, None, false, cx)
1775 }
1776
1777 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1778 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1779 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1780 Self::new(
1781 EditorMode::SingleLine { auto_width: true },
1782 buffer,
1783 None,
1784 false,
1785 cx,
1786 )
1787 }
1788
1789 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1790 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1791 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1792 Self::new(
1793 EditorMode::AutoHeight { max_lines },
1794 buffer,
1795 None,
1796 false,
1797 cx,
1798 )
1799 }
1800
1801 pub fn for_buffer(
1802 buffer: Model<Buffer>,
1803 project: Option<Model<Project>>,
1804 cx: &mut ViewContext<Self>,
1805 ) -> Self {
1806 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1807 Self::new(EditorMode::Full, buffer, project, false, cx)
1808 }
1809
1810 pub fn for_multibuffer(
1811 buffer: Model<MultiBuffer>,
1812 project: Option<Model<Project>>,
1813 show_excerpt_controls: bool,
1814 cx: &mut ViewContext<Self>,
1815 ) -> Self {
1816 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1817 }
1818
1819 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1820 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1821 let mut clone = Self::new(
1822 self.mode,
1823 self.buffer.clone(),
1824 self.project.clone(),
1825 show_excerpt_controls,
1826 cx,
1827 );
1828 self.display_map.update(cx, |display_map, cx| {
1829 let snapshot = display_map.snapshot(cx);
1830 clone.display_map.update(cx, |display_map, cx| {
1831 display_map.set_state(&snapshot, cx);
1832 });
1833 });
1834 clone.selections.clone_state(&self.selections);
1835 clone.scroll_manager.clone_state(&self.scroll_manager);
1836 clone.searchable = self.searchable;
1837 clone
1838 }
1839
1840 pub fn new(
1841 mode: EditorMode,
1842 buffer: Model<MultiBuffer>,
1843 project: Option<Model<Project>>,
1844 show_excerpt_controls: bool,
1845 cx: &mut ViewContext<Self>,
1846 ) -> Self {
1847 let style = cx.text_style();
1848 let font_size = style.font_size.to_pixels(cx.rem_size());
1849 let editor = cx.view().downgrade();
1850 let fold_placeholder = FoldPlaceholder {
1851 constrain_width: true,
1852 render: Arc::new(move |fold_id, fold_range, cx| {
1853 let editor = editor.clone();
1854 div()
1855 .id(fold_id)
1856 .bg(cx.theme().colors().ghost_element_background)
1857 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1858 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1859 .rounded_sm()
1860 .size_full()
1861 .cursor_pointer()
1862 .child("⋯")
1863 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1864 .on_click(move |_, cx| {
1865 editor
1866 .update(cx, |editor, cx| {
1867 editor.unfold_ranges(
1868 &[fold_range.start..fold_range.end],
1869 true,
1870 false,
1871 cx,
1872 );
1873 cx.stop_propagation();
1874 })
1875 .ok();
1876 })
1877 .into_any()
1878 }),
1879 merge_adjacent: true,
1880 ..Default::default()
1881 };
1882 let display_map = cx.new_model(|cx| {
1883 DisplayMap::new(
1884 buffer.clone(),
1885 style.font(),
1886 font_size,
1887 None,
1888 show_excerpt_controls,
1889 FILE_HEADER_HEIGHT,
1890 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1891 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1892 fold_placeholder,
1893 cx,
1894 )
1895 });
1896
1897 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1898
1899 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1900
1901 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1902 .then(|| language_settings::SoftWrap::None);
1903
1904 let mut project_subscriptions = Vec::new();
1905 if mode == EditorMode::Full {
1906 if let Some(project) = project.as_ref() {
1907 if buffer.read(cx).is_singleton() {
1908 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1909 cx.emit(EditorEvent::TitleChanged);
1910 }));
1911 }
1912 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1913 if let project::Event::RefreshInlayHints = event {
1914 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1915 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1916 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1917 let focus_handle = editor.focus_handle(cx);
1918 if focus_handle.is_focused(cx) {
1919 let snapshot = buffer.read(cx).snapshot();
1920 for (range, snippet) in snippet_edits {
1921 let editor_range =
1922 language::range_from_lsp(*range).to_offset(&snapshot);
1923 editor
1924 .insert_snippet(&[editor_range], snippet.clone(), cx)
1925 .ok();
1926 }
1927 }
1928 }
1929 }
1930 }));
1931 if let Some(task_inventory) = project
1932 .read(cx)
1933 .task_store()
1934 .read(cx)
1935 .task_inventory()
1936 .cloned()
1937 {
1938 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1939 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1940 }));
1941 }
1942 }
1943 }
1944
1945 let inlay_hint_settings = inlay_hint_settings(
1946 selections.newest_anchor().head(),
1947 &buffer.read(cx).snapshot(cx),
1948 cx,
1949 );
1950 let focus_handle = cx.focus_handle();
1951 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1952 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1953 .detach();
1954 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1955 .detach();
1956 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1957
1958 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1959 Some(false)
1960 } else {
1961 None
1962 };
1963
1964 let mut code_action_providers = Vec::new();
1965 if let Some(project) = project.clone() {
1966 code_action_providers.push(Arc::new(project) as Arc<_>);
1967 }
1968
1969 let mut this = Self {
1970 focus_handle,
1971 show_cursor_when_unfocused: false,
1972 last_focused_descendant: None,
1973 buffer: buffer.clone(),
1974 display_map: display_map.clone(),
1975 selections,
1976 scroll_manager: ScrollManager::new(cx),
1977 columnar_selection_tail: None,
1978 add_selections_state: None,
1979 select_next_state: None,
1980 select_prev_state: None,
1981 selection_history: Default::default(),
1982 autoclose_regions: Default::default(),
1983 snippet_stack: Default::default(),
1984 select_larger_syntax_node_stack: Vec::new(),
1985 ime_transaction: Default::default(),
1986 active_diagnostics: None,
1987 soft_wrap_mode_override,
1988 completion_provider: project.clone().map(|project| Box::new(project) as _),
1989 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1990 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1991 project,
1992 blink_manager: blink_manager.clone(),
1993 show_local_selections: true,
1994 mode,
1995 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1996 show_gutter: mode == EditorMode::Full,
1997 show_line_numbers: None,
1998 use_relative_line_numbers: None,
1999 show_git_diff_gutter: None,
2000 show_code_actions: None,
2001 show_runnables: None,
2002 show_wrap_guides: None,
2003 show_indent_guides,
2004 placeholder_text: None,
2005 highlight_order: 0,
2006 highlighted_rows: HashMap::default(),
2007 background_highlights: Default::default(),
2008 gutter_highlights: TreeMap::default(),
2009 scrollbar_marker_state: ScrollbarMarkerState::default(),
2010 active_indent_guides_state: ActiveIndentGuidesState::default(),
2011 nav_history: None,
2012 context_menu: RwLock::new(None),
2013 mouse_context_menu: None,
2014 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2015 completion_tasks: Default::default(),
2016 signature_help_state: SignatureHelpState::default(),
2017 auto_signature_help: None,
2018 find_all_references_task_sources: Vec::new(),
2019 next_completion_id: 0,
2020 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2021 next_inlay_id: 0,
2022 code_action_providers,
2023 available_code_actions: Default::default(),
2024 code_actions_task: Default::default(),
2025 document_highlights_task: Default::default(),
2026 linked_editing_range_task: Default::default(),
2027 pending_rename: Default::default(),
2028 searchable: true,
2029 cursor_shape: EditorSettings::get_global(cx)
2030 .cursor_shape
2031 .unwrap_or_default(),
2032 current_line_highlight: None,
2033 autoindent_mode: Some(AutoindentMode::EachLine),
2034 collapse_matches: false,
2035 workspace: None,
2036 input_enabled: true,
2037 use_modal_editing: mode == EditorMode::Full,
2038 read_only: false,
2039 use_autoclose: true,
2040 use_auto_surround: true,
2041 auto_replace_emoji_shortcode: false,
2042 leader_peer_id: None,
2043 remote_id: None,
2044 hover_state: Default::default(),
2045 hovered_link_state: Default::default(),
2046 inline_completion_provider: None,
2047 active_inline_completion: None,
2048 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2049 expanded_hunks: ExpandedHunks::default(),
2050 gutter_hovered: false,
2051 pixel_position_of_newest_cursor: None,
2052 last_bounds: None,
2053 expect_bounds_change: None,
2054 gutter_dimensions: GutterDimensions::default(),
2055 style: None,
2056 show_cursor_names: false,
2057 hovered_cursors: Default::default(),
2058 next_editor_action_id: EditorActionId::default(),
2059 editor_actions: Rc::default(),
2060 show_inline_completions_override: None,
2061 enable_inline_completions: true,
2062 custom_context_menu: None,
2063 show_git_blame_gutter: false,
2064 show_git_blame_inline: false,
2065 show_selection_menu: None,
2066 show_git_blame_inline_delay_task: None,
2067 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2068 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2069 .session
2070 .restore_unsaved_buffers,
2071 blame: None,
2072 blame_subscription: None,
2073 tasks: Default::default(),
2074 _subscriptions: vec![
2075 cx.observe(&buffer, Self::on_buffer_changed),
2076 cx.subscribe(&buffer, Self::on_buffer_event),
2077 cx.observe(&display_map, Self::on_display_map_changed),
2078 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2079 cx.observe_global::<SettingsStore>(Self::settings_changed),
2080 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2081 cx.observe_window_activation(|editor, cx| {
2082 let active = cx.is_window_active();
2083 editor.blink_manager.update(cx, |blink_manager, cx| {
2084 if active {
2085 blink_manager.enable(cx);
2086 } else {
2087 blink_manager.disable(cx);
2088 }
2089 });
2090 }),
2091 ],
2092 tasks_update_task: None,
2093 linked_edit_ranges: Default::default(),
2094 previous_search_ranges: None,
2095 breadcrumb_header: None,
2096 focused_block: None,
2097 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2098 addons: HashMap::default(),
2099 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2100 text_style_refinement: None,
2101 };
2102 this.tasks_update_task = Some(this.refresh_runnables(cx));
2103 this._subscriptions.extend(project_subscriptions);
2104
2105 this.end_selection(cx);
2106 this.scroll_manager.show_scrollbar(cx);
2107
2108 if mode == EditorMode::Full {
2109 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2110 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2111
2112 if this.git_blame_inline_enabled {
2113 this.git_blame_inline_enabled = true;
2114 this.start_git_blame_inline(false, cx);
2115 }
2116 }
2117
2118 this.report_editor_event("open", None, cx);
2119 this
2120 }
2121
2122 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2123 self.mouse_context_menu
2124 .as_ref()
2125 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2126 }
2127
2128 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2129 let mut key_context = KeyContext::new_with_defaults();
2130 key_context.add("Editor");
2131 let mode = match self.mode {
2132 EditorMode::SingleLine { .. } => "single_line",
2133 EditorMode::AutoHeight { .. } => "auto_height",
2134 EditorMode::Full => "full",
2135 };
2136
2137 if EditorSettings::jupyter_enabled(cx) {
2138 key_context.add("jupyter");
2139 }
2140
2141 key_context.set("mode", mode);
2142 if self.pending_rename.is_some() {
2143 key_context.add("renaming");
2144 }
2145 if self.context_menu_visible() {
2146 match self.context_menu.read().as_ref() {
2147 Some(ContextMenu::Completions(_)) => {
2148 key_context.add("menu");
2149 key_context.add("showing_completions")
2150 }
2151 Some(ContextMenu::CodeActions(_)) => {
2152 key_context.add("menu");
2153 key_context.add("showing_code_actions")
2154 }
2155 None => {}
2156 }
2157 }
2158
2159 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2160 if !self.focus_handle(cx).contains_focused(cx)
2161 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2162 {
2163 for addon in self.addons.values() {
2164 addon.extend_key_context(&mut key_context, cx)
2165 }
2166 }
2167
2168 if let Some(extension) = self
2169 .buffer
2170 .read(cx)
2171 .as_singleton()
2172 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2173 {
2174 key_context.set("extension", extension.to_string());
2175 }
2176
2177 if self.has_active_inline_completion(cx) {
2178 key_context.add("copilot_suggestion");
2179 key_context.add("inline_completion");
2180 }
2181
2182 key_context
2183 }
2184
2185 pub fn new_file(
2186 workspace: &mut Workspace,
2187 _: &workspace::NewFile,
2188 cx: &mut ViewContext<Workspace>,
2189 ) {
2190 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2191 "Failed to create buffer",
2192 cx,
2193 |e, _| match e.error_code() {
2194 ErrorCode::RemoteUpgradeRequired => Some(format!(
2195 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2196 e.error_tag("required").unwrap_or("the latest version")
2197 )),
2198 _ => None,
2199 },
2200 );
2201 }
2202
2203 pub fn new_in_workspace(
2204 workspace: &mut Workspace,
2205 cx: &mut ViewContext<Workspace>,
2206 ) -> Task<Result<View<Editor>>> {
2207 let project = workspace.project().clone();
2208 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2209
2210 cx.spawn(|workspace, mut cx| async move {
2211 let buffer = create.await?;
2212 workspace.update(&mut cx, |workspace, cx| {
2213 let editor =
2214 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2215 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2216 editor
2217 })
2218 })
2219 }
2220
2221 fn new_file_vertical(
2222 workspace: &mut Workspace,
2223 _: &workspace::NewFileSplitVertical,
2224 cx: &mut ViewContext<Workspace>,
2225 ) {
2226 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2227 }
2228
2229 fn new_file_horizontal(
2230 workspace: &mut Workspace,
2231 _: &workspace::NewFileSplitHorizontal,
2232 cx: &mut ViewContext<Workspace>,
2233 ) {
2234 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2235 }
2236
2237 fn new_file_in_direction(
2238 workspace: &mut Workspace,
2239 direction: SplitDirection,
2240 cx: &mut ViewContext<Workspace>,
2241 ) {
2242 let project = workspace.project().clone();
2243 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2244
2245 cx.spawn(|workspace, mut cx| async move {
2246 let buffer = create.await?;
2247 workspace.update(&mut cx, move |workspace, cx| {
2248 workspace.split_item(
2249 direction,
2250 Box::new(
2251 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2252 ),
2253 cx,
2254 )
2255 })?;
2256 anyhow::Ok(())
2257 })
2258 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2259 ErrorCode::RemoteUpgradeRequired => Some(format!(
2260 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2261 e.error_tag("required").unwrap_or("the latest version")
2262 )),
2263 _ => None,
2264 });
2265 }
2266
2267 pub fn leader_peer_id(&self) -> Option<PeerId> {
2268 self.leader_peer_id
2269 }
2270
2271 pub fn buffer(&self) -> &Model<MultiBuffer> {
2272 &self.buffer
2273 }
2274
2275 pub fn workspace(&self) -> Option<View<Workspace>> {
2276 self.workspace.as_ref()?.0.upgrade()
2277 }
2278
2279 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2280 self.buffer().read(cx).title(cx)
2281 }
2282
2283 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2284 let git_blame_gutter_max_author_length = self
2285 .render_git_blame_gutter(cx)
2286 .then(|| {
2287 if let Some(blame) = self.blame.as_ref() {
2288 let max_author_length =
2289 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2290 Some(max_author_length)
2291 } else {
2292 None
2293 }
2294 })
2295 .flatten();
2296
2297 EditorSnapshot {
2298 mode: self.mode,
2299 show_gutter: self.show_gutter,
2300 show_line_numbers: self.show_line_numbers,
2301 show_git_diff_gutter: self.show_git_diff_gutter,
2302 show_code_actions: self.show_code_actions,
2303 show_runnables: self.show_runnables,
2304 git_blame_gutter_max_author_length,
2305 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2306 scroll_anchor: self.scroll_manager.anchor(),
2307 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2308 placeholder_text: self.placeholder_text.clone(),
2309 is_focused: self.focus_handle.is_focused(cx),
2310 current_line_highlight: self
2311 .current_line_highlight
2312 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2313 gutter_hovered: self.gutter_hovered,
2314 }
2315 }
2316
2317 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2318 self.buffer.read(cx).language_at(point, cx)
2319 }
2320
2321 pub fn file_at<T: ToOffset>(
2322 &self,
2323 point: T,
2324 cx: &AppContext,
2325 ) -> Option<Arc<dyn language::File>> {
2326 self.buffer.read(cx).read(cx).file_at(point).cloned()
2327 }
2328
2329 pub fn active_excerpt(
2330 &self,
2331 cx: &AppContext,
2332 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2333 self.buffer
2334 .read(cx)
2335 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2336 }
2337
2338 pub fn mode(&self) -> EditorMode {
2339 self.mode
2340 }
2341
2342 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2343 self.collaboration_hub.as_deref()
2344 }
2345
2346 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2347 self.collaboration_hub = Some(hub);
2348 }
2349
2350 pub fn set_custom_context_menu(
2351 &mut self,
2352 f: impl 'static
2353 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2354 ) {
2355 self.custom_context_menu = Some(Box::new(f))
2356 }
2357
2358 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2359 self.completion_provider = provider;
2360 }
2361
2362 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2363 self.semantics_provider.clone()
2364 }
2365
2366 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2367 self.semantics_provider = provider;
2368 }
2369
2370 pub fn set_inline_completion_provider<T>(
2371 &mut self,
2372 provider: Option<Model<T>>,
2373 cx: &mut ViewContext<Self>,
2374 ) where
2375 T: InlineCompletionProvider,
2376 {
2377 self.inline_completion_provider =
2378 provider.map(|provider| RegisteredInlineCompletionProvider {
2379 _subscription: cx.observe(&provider, |this, _, cx| {
2380 if this.focus_handle.is_focused(cx) {
2381 this.update_visible_inline_completion(cx);
2382 }
2383 }),
2384 provider: Arc::new(provider),
2385 });
2386 self.refresh_inline_completion(false, false, cx);
2387 }
2388
2389 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2390 self.placeholder_text.as_deref()
2391 }
2392
2393 pub fn set_placeholder_text(
2394 &mut self,
2395 placeholder_text: impl Into<Arc<str>>,
2396 cx: &mut ViewContext<Self>,
2397 ) {
2398 let placeholder_text = Some(placeholder_text.into());
2399 if self.placeholder_text != placeholder_text {
2400 self.placeholder_text = placeholder_text;
2401 cx.notify();
2402 }
2403 }
2404
2405 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2406 self.cursor_shape = cursor_shape;
2407
2408 // Disrupt blink for immediate user feedback that the cursor shape has changed
2409 self.blink_manager.update(cx, BlinkManager::show_cursor);
2410
2411 cx.notify();
2412 }
2413
2414 pub fn set_current_line_highlight(
2415 &mut self,
2416 current_line_highlight: Option<CurrentLineHighlight>,
2417 ) {
2418 self.current_line_highlight = current_line_highlight;
2419 }
2420
2421 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2422 self.collapse_matches = collapse_matches;
2423 }
2424
2425 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2426 if self.collapse_matches {
2427 return range.start..range.start;
2428 }
2429 range.clone()
2430 }
2431
2432 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2433 if self.display_map.read(cx).clip_at_line_ends != clip {
2434 self.display_map
2435 .update(cx, |map, _| map.clip_at_line_ends = clip);
2436 }
2437 }
2438
2439 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2440 self.input_enabled = input_enabled;
2441 }
2442
2443 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2444 self.enable_inline_completions = enabled;
2445 }
2446
2447 pub fn set_autoindent(&mut self, autoindent: bool) {
2448 if autoindent {
2449 self.autoindent_mode = Some(AutoindentMode::EachLine);
2450 } else {
2451 self.autoindent_mode = None;
2452 }
2453 }
2454
2455 pub fn read_only(&self, cx: &AppContext) -> bool {
2456 self.read_only || self.buffer.read(cx).read_only()
2457 }
2458
2459 pub fn set_read_only(&mut self, read_only: bool) {
2460 self.read_only = read_only;
2461 }
2462
2463 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2464 self.use_autoclose = autoclose;
2465 }
2466
2467 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2468 self.use_auto_surround = auto_surround;
2469 }
2470
2471 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2472 self.auto_replace_emoji_shortcode = auto_replace;
2473 }
2474
2475 pub fn toggle_inline_completions(
2476 &mut self,
2477 _: &ToggleInlineCompletions,
2478 cx: &mut ViewContext<Self>,
2479 ) {
2480 if self.show_inline_completions_override.is_some() {
2481 self.set_show_inline_completions(None, cx);
2482 } else {
2483 let cursor = self.selections.newest_anchor().head();
2484 if let Some((buffer, cursor_buffer_position)) =
2485 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2486 {
2487 let show_inline_completions =
2488 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2489 self.set_show_inline_completions(Some(show_inline_completions), cx);
2490 }
2491 }
2492 }
2493
2494 pub fn set_show_inline_completions(
2495 &mut self,
2496 show_inline_completions: Option<bool>,
2497 cx: &mut ViewContext<Self>,
2498 ) {
2499 self.show_inline_completions_override = show_inline_completions;
2500 self.refresh_inline_completion(false, true, cx);
2501 }
2502
2503 fn should_show_inline_completions(
2504 &self,
2505 buffer: &Model<Buffer>,
2506 buffer_position: language::Anchor,
2507 cx: &AppContext,
2508 ) -> bool {
2509 if !self.snippet_stack.is_empty() {
2510 return false;
2511 }
2512
2513 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2514 return false;
2515 }
2516
2517 if let Some(provider) = self.inline_completion_provider() {
2518 if let Some(show_inline_completions) = self.show_inline_completions_override {
2519 show_inline_completions
2520 } else {
2521 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2522 }
2523 } else {
2524 false
2525 }
2526 }
2527
2528 fn inline_completions_disabled_in_scope(
2529 &self,
2530 buffer: &Model<Buffer>,
2531 buffer_position: language::Anchor,
2532 cx: &AppContext,
2533 ) -> bool {
2534 let snapshot = buffer.read(cx).snapshot();
2535 let settings = snapshot.settings_at(buffer_position, cx);
2536
2537 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2538 return false;
2539 };
2540
2541 scope.override_name().map_or(false, |scope_name| {
2542 settings
2543 .inline_completions_disabled_in
2544 .iter()
2545 .any(|s| s == scope_name)
2546 })
2547 }
2548
2549 pub fn set_use_modal_editing(&mut self, to: bool) {
2550 self.use_modal_editing = to;
2551 }
2552
2553 pub fn use_modal_editing(&self) -> bool {
2554 self.use_modal_editing
2555 }
2556
2557 fn selections_did_change(
2558 &mut self,
2559 local: bool,
2560 old_cursor_position: &Anchor,
2561 show_completions: bool,
2562 cx: &mut ViewContext<Self>,
2563 ) {
2564 cx.invalidate_character_coordinates();
2565
2566 // Copy selections to primary selection buffer
2567 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2568 if local {
2569 let selections = self.selections.all::<usize>(cx);
2570 let buffer_handle = self.buffer.read(cx).read(cx);
2571
2572 let mut text = String::new();
2573 for (index, selection) in selections.iter().enumerate() {
2574 let text_for_selection = buffer_handle
2575 .text_for_range(selection.start..selection.end)
2576 .collect::<String>();
2577
2578 text.push_str(&text_for_selection);
2579 if index != selections.len() - 1 {
2580 text.push('\n');
2581 }
2582 }
2583
2584 if !text.is_empty() {
2585 cx.write_to_primary(ClipboardItem::new_string(text));
2586 }
2587 }
2588
2589 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2590 self.buffer.update(cx, |buffer, cx| {
2591 buffer.set_active_selections(
2592 &self.selections.disjoint_anchors(),
2593 self.selections.line_mode,
2594 self.cursor_shape,
2595 cx,
2596 )
2597 });
2598 }
2599 let display_map = self
2600 .display_map
2601 .update(cx, |display_map, cx| display_map.snapshot(cx));
2602 let buffer = &display_map.buffer_snapshot;
2603 self.add_selections_state = None;
2604 self.select_next_state = None;
2605 self.select_prev_state = None;
2606 self.select_larger_syntax_node_stack.clear();
2607 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2608 self.snippet_stack
2609 .invalidate(&self.selections.disjoint_anchors(), buffer);
2610 self.take_rename(false, cx);
2611
2612 let new_cursor_position = self.selections.newest_anchor().head();
2613
2614 self.push_to_nav_history(
2615 *old_cursor_position,
2616 Some(new_cursor_position.to_point(buffer)),
2617 cx,
2618 );
2619
2620 if local {
2621 let new_cursor_position = self.selections.newest_anchor().head();
2622 let mut context_menu = self.context_menu.write();
2623 let completion_menu = match context_menu.as_ref() {
2624 Some(ContextMenu::Completions(menu)) => Some(menu),
2625
2626 _ => {
2627 *context_menu = None;
2628 None
2629 }
2630 };
2631
2632 if let Some(completion_menu) = completion_menu {
2633 let cursor_position = new_cursor_position.to_offset(buffer);
2634 let (word_range, kind) =
2635 buffer.surrounding_word(completion_menu.initial_position, true);
2636 if kind == Some(CharKind::Word)
2637 && word_range.to_inclusive().contains(&cursor_position)
2638 {
2639 let mut completion_menu = completion_menu.clone();
2640 drop(context_menu);
2641
2642 let query = Self::completion_query(buffer, cursor_position);
2643 cx.spawn(move |this, mut cx| async move {
2644 completion_menu
2645 .filter(query.as_deref(), cx.background_executor().clone())
2646 .await;
2647
2648 this.update(&mut cx, |this, cx| {
2649 let mut context_menu = this.context_menu.write();
2650 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2651 return;
2652 };
2653
2654 if menu.id > completion_menu.id {
2655 return;
2656 }
2657
2658 *context_menu = Some(ContextMenu::Completions(completion_menu));
2659 drop(context_menu);
2660 cx.notify();
2661 })
2662 })
2663 .detach();
2664
2665 if show_completions {
2666 self.show_completions(&ShowCompletions { trigger: None }, cx);
2667 }
2668 } else {
2669 drop(context_menu);
2670 self.hide_context_menu(cx);
2671 }
2672 } else {
2673 drop(context_menu);
2674 }
2675
2676 hide_hover(self, cx);
2677
2678 if old_cursor_position.to_display_point(&display_map).row()
2679 != new_cursor_position.to_display_point(&display_map).row()
2680 {
2681 self.available_code_actions.take();
2682 }
2683 self.refresh_code_actions(cx);
2684 self.refresh_document_highlights(cx);
2685 refresh_matching_bracket_highlights(self, cx);
2686 self.discard_inline_completion(false, cx);
2687 linked_editing_ranges::refresh_linked_ranges(self, cx);
2688 if self.git_blame_inline_enabled {
2689 self.start_inline_blame_timer(cx);
2690 }
2691 }
2692
2693 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2694 cx.emit(EditorEvent::SelectionsChanged { local });
2695
2696 if self.selections.disjoint_anchors().len() == 1 {
2697 cx.emit(SearchEvent::ActiveMatchChanged)
2698 }
2699 cx.notify();
2700 }
2701
2702 pub fn change_selections<R>(
2703 &mut self,
2704 autoscroll: Option<Autoscroll>,
2705 cx: &mut ViewContext<Self>,
2706 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2707 ) -> R {
2708 self.change_selections_inner(autoscroll, true, cx, change)
2709 }
2710
2711 pub fn change_selections_inner<R>(
2712 &mut self,
2713 autoscroll: Option<Autoscroll>,
2714 request_completions: bool,
2715 cx: &mut ViewContext<Self>,
2716 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2717 ) -> R {
2718 let old_cursor_position = self.selections.newest_anchor().head();
2719 self.push_to_selection_history();
2720
2721 let (changed, result) = self.selections.change_with(cx, change);
2722
2723 if changed {
2724 if let Some(autoscroll) = autoscroll {
2725 self.request_autoscroll(autoscroll, cx);
2726 }
2727 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2728
2729 if self.should_open_signature_help_automatically(
2730 &old_cursor_position,
2731 self.signature_help_state.backspace_pressed(),
2732 cx,
2733 ) {
2734 self.show_signature_help(&ShowSignatureHelp, cx);
2735 }
2736 self.signature_help_state.set_backspace_pressed(false);
2737 }
2738
2739 result
2740 }
2741
2742 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2743 where
2744 I: IntoIterator<Item = (Range<S>, T)>,
2745 S: ToOffset,
2746 T: Into<Arc<str>>,
2747 {
2748 if self.read_only(cx) {
2749 return;
2750 }
2751
2752 self.buffer
2753 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2754 }
2755
2756 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2757 where
2758 I: IntoIterator<Item = (Range<S>, T)>,
2759 S: ToOffset,
2760 T: Into<Arc<str>>,
2761 {
2762 if self.read_only(cx) {
2763 return;
2764 }
2765
2766 self.buffer.update(cx, |buffer, cx| {
2767 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2768 });
2769 }
2770
2771 pub fn edit_with_block_indent<I, S, T>(
2772 &mut self,
2773 edits: I,
2774 original_indent_columns: Vec<u32>,
2775 cx: &mut ViewContext<Self>,
2776 ) where
2777 I: IntoIterator<Item = (Range<S>, T)>,
2778 S: ToOffset,
2779 T: Into<Arc<str>>,
2780 {
2781 if self.read_only(cx) {
2782 return;
2783 }
2784
2785 self.buffer.update(cx, |buffer, cx| {
2786 buffer.edit(
2787 edits,
2788 Some(AutoindentMode::Block {
2789 original_indent_columns,
2790 }),
2791 cx,
2792 )
2793 });
2794 }
2795
2796 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2797 self.hide_context_menu(cx);
2798
2799 match phase {
2800 SelectPhase::Begin {
2801 position,
2802 add,
2803 click_count,
2804 } => self.begin_selection(position, add, click_count, cx),
2805 SelectPhase::BeginColumnar {
2806 position,
2807 goal_column,
2808 reset,
2809 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2810 SelectPhase::Extend {
2811 position,
2812 click_count,
2813 } => self.extend_selection(position, click_count, cx),
2814 SelectPhase::Update {
2815 position,
2816 goal_column,
2817 scroll_delta,
2818 } => self.update_selection(position, goal_column, scroll_delta, cx),
2819 SelectPhase::End => self.end_selection(cx),
2820 }
2821 }
2822
2823 fn extend_selection(
2824 &mut self,
2825 position: DisplayPoint,
2826 click_count: usize,
2827 cx: &mut ViewContext<Self>,
2828 ) {
2829 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2830 let tail = self.selections.newest::<usize>(cx).tail();
2831 self.begin_selection(position, false, click_count, cx);
2832
2833 let position = position.to_offset(&display_map, Bias::Left);
2834 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2835
2836 let mut pending_selection = self
2837 .selections
2838 .pending_anchor()
2839 .expect("extend_selection not called with pending selection");
2840 if position >= tail {
2841 pending_selection.start = tail_anchor;
2842 } else {
2843 pending_selection.end = tail_anchor;
2844 pending_selection.reversed = true;
2845 }
2846
2847 let mut pending_mode = self.selections.pending_mode().unwrap();
2848 match &mut pending_mode {
2849 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2850 _ => {}
2851 }
2852
2853 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2854 s.set_pending(pending_selection, pending_mode)
2855 });
2856 }
2857
2858 fn begin_selection(
2859 &mut self,
2860 position: DisplayPoint,
2861 add: bool,
2862 click_count: usize,
2863 cx: &mut ViewContext<Self>,
2864 ) {
2865 if !self.focus_handle.is_focused(cx) {
2866 self.last_focused_descendant = None;
2867 cx.focus(&self.focus_handle);
2868 }
2869
2870 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2871 let buffer = &display_map.buffer_snapshot;
2872 let newest_selection = self.selections.newest_anchor().clone();
2873 let position = display_map.clip_point(position, Bias::Left);
2874
2875 let start;
2876 let end;
2877 let mode;
2878 let auto_scroll;
2879 match click_count {
2880 1 => {
2881 start = buffer.anchor_before(position.to_point(&display_map));
2882 end = start;
2883 mode = SelectMode::Character;
2884 auto_scroll = true;
2885 }
2886 2 => {
2887 let range = movement::surrounding_word(&display_map, position);
2888 start = buffer.anchor_before(range.start.to_point(&display_map));
2889 end = buffer.anchor_before(range.end.to_point(&display_map));
2890 mode = SelectMode::Word(start..end);
2891 auto_scroll = true;
2892 }
2893 3 => {
2894 let position = display_map
2895 .clip_point(position, Bias::Left)
2896 .to_point(&display_map);
2897 let line_start = display_map.prev_line_boundary(position).0;
2898 let next_line_start = buffer.clip_point(
2899 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2900 Bias::Left,
2901 );
2902 start = buffer.anchor_before(line_start);
2903 end = buffer.anchor_before(next_line_start);
2904 mode = SelectMode::Line(start..end);
2905 auto_scroll = true;
2906 }
2907 _ => {
2908 start = buffer.anchor_before(0);
2909 end = buffer.anchor_before(buffer.len());
2910 mode = SelectMode::All;
2911 auto_scroll = false;
2912 }
2913 }
2914
2915 let point_to_delete: Option<usize> = {
2916 let selected_points: Vec<Selection<Point>> =
2917 self.selections.disjoint_in_range(start..end, cx);
2918
2919 if !add || click_count > 1 {
2920 None
2921 } else if !selected_points.is_empty() {
2922 Some(selected_points[0].id)
2923 } else {
2924 let clicked_point_already_selected =
2925 self.selections.disjoint.iter().find(|selection| {
2926 selection.start.to_point(buffer) == start.to_point(buffer)
2927 || selection.end.to_point(buffer) == end.to_point(buffer)
2928 });
2929
2930 clicked_point_already_selected.map(|selection| selection.id)
2931 }
2932 };
2933
2934 let selections_count = self.selections.count();
2935
2936 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2937 if let Some(point_to_delete) = point_to_delete {
2938 s.delete(point_to_delete);
2939
2940 if selections_count == 1 {
2941 s.set_pending_anchor_range(start..end, mode);
2942 }
2943 } else {
2944 if !add {
2945 s.clear_disjoint();
2946 } else if click_count > 1 {
2947 s.delete(newest_selection.id)
2948 }
2949
2950 s.set_pending_anchor_range(start..end, mode);
2951 }
2952 });
2953 }
2954
2955 fn begin_columnar_selection(
2956 &mut self,
2957 position: DisplayPoint,
2958 goal_column: u32,
2959 reset: bool,
2960 cx: &mut ViewContext<Self>,
2961 ) {
2962 if !self.focus_handle.is_focused(cx) {
2963 self.last_focused_descendant = None;
2964 cx.focus(&self.focus_handle);
2965 }
2966
2967 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2968
2969 if reset {
2970 let pointer_position = display_map
2971 .buffer_snapshot
2972 .anchor_before(position.to_point(&display_map));
2973
2974 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2975 s.clear_disjoint();
2976 s.set_pending_anchor_range(
2977 pointer_position..pointer_position,
2978 SelectMode::Character,
2979 );
2980 });
2981 }
2982
2983 let tail = self.selections.newest::<Point>(cx).tail();
2984 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2985
2986 if !reset {
2987 self.select_columns(
2988 tail.to_display_point(&display_map),
2989 position,
2990 goal_column,
2991 &display_map,
2992 cx,
2993 );
2994 }
2995 }
2996
2997 fn update_selection(
2998 &mut self,
2999 position: DisplayPoint,
3000 goal_column: u32,
3001 scroll_delta: gpui::Point<f32>,
3002 cx: &mut ViewContext<Self>,
3003 ) {
3004 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3005
3006 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3007 let tail = tail.to_display_point(&display_map);
3008 self.select_columns(tail, position, goal_column, &display_map, cx);
3009 } else if let Some(mut pending) = self.selections.pending_anchor() {
3010 let buffer = self.buffer.read(cx).snapshot(cx);
3011 let head;
3012 let tail;
3013 let mode = self.selections.pending_mode().unwrap();
3014 match &mode {
3015 SelectMode::Character => {
3016 head = position.to_point(&display_map);
3017 tail = pending.tail().to_point(&buffer);
3018 }
3019 SelectMode::Word(original_range) => {
3020 let original_display_range = original_range.start.to_display_point(&display_map)
3021 ..original_range.end.to_display_point(&display_map);
3022 let original_buffer_range = original_display_range.start.to_point(&display_map)
3023 ..original_display_range.end.to_point(&display_map);
3024 if movement::is_inside_word(&display_map, position)
3025 || original_display_range.contains(&position)
3026 {
3027 let word_range = movement::surrounding_word(&display_map, position);
3028 if word_range.start < original_display_range.start {
3029 head = word_range.start.to_point(&display_map);
3030 } else {
3031 head = word_range.end.to_point(&display_map);
3032 }
3033 } else {
3034 head = position.to_point(&display_map);
3035 }
3036
3037 if head <= original_buffer_range.start {
3038 tail = original_buffer_range.end;
3039 } else {
3040 tail = original_buffer_range.start;
3041 }
3042 }
3043 SelectMode::Line(original_range) => {
3044 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3045
3046 let position = display_map
3047 .clip_point(position, Bias::Left)
3048 .to_point(&display_map);
3049 let line_start = display_map.prev_line_boundary(position).0;
3050 let next_line_start = buffer.clip_point(
3051 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3052 Bias::Left,
3053 );
3054
3055 if line_start < original_range.start {
3056 head = line_start
3057 } else {
3058 head = next_line_start
3059 }
3060
3061 if head <= original_range.start {
3062 tail = original_range.end;
3063 } else {
3064 tail = original_range.start;
3065 }
3066 }
3067 SelectMode::All => {
3068 return;
3069 }
3070 };
3071
3072 if head < tail {
3073 pending.start = buffer.anchor_before(head);
3074 pending.end = buffer.anchor_before(tail);
3075 pending.reversed = true;
3076 } else {
3077 pending.start = buffer.anchor_before(tail);
3078 pending.end = buffer.anchor_before(head);
3079 pending.reversed = false;
3080 }
3081
3082 self.change_selections(None, cx, |s| {
3083 s.set_pending(pending, mode);
3084 });
3085 } else {
3086 log::error!("update_selection dispatched with no pending selection");
3087 return;
3088 }
3089
3090 self.apply_scroll_delta(scroll_delta, cx);
3091 cx.notify();
3092 }
3093
3094 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3095 self.columnar_selection_tail.take();
3096 if self.selections.pending_anchor().is_some() {
3097 let selections = self.selections.all::<usize>(cx);
3098 self.change_selections(None, cx, |s| {
3099 s.select(selections);
3100 s.clear_pending();
3101 });
3102 }
3103 }
3104
3105 fn select_columns(
3106 &mut self,
3107 tail: DisplayPoint,
3108 head: DisplayPoint,
3109 goal_column: u32,
3110 display_map: &DisplaySnapshot,
3111 cx: &mut ViewContext<Self>,
3112 ) {
3113 let start_row = cmp::min(tail.row(), head.row());
3114 let end_row = cmp::max(tail.row(), head.row());
3115 let start_column = cmp::min(tail.column(), goal_column);
3116 let end_column = cmp::max(tail.column(), goal_column);
3117 let reversed = start_column < tail.column();
3118
3119 let selection_ranges = (start_row.0..=end_row.0)
3120 .map(DisplayRow)
3121 .filter_map(|row| {
3122 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3123 let start = display_map
3124 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3125 .to_point(display_map);
3126 let end = display_map
3127 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3128 .to_point(display_map);
3129 if reversed {
3130 Some(end..start)
3131 } else {
3132 Some(start..end)
3133 }
3134 } else {
3135 None
3136 }
3137 })
3138 .collect::<Vec<_>>();
3139
3140 self.change_selections(None, cx, |s| {
3141 s.select_ranges(selection_ranges);
3142 });
3143 cx.notify();
3144 }
3145
3146 pub fn has_pending_nonempty_selection(&self) -> bool {
3147 let pending_nonempty_selection = match self.selections.pending_anchor() {
3148 Some(Selection { start, end, .. }) => start != end,
3149 None => false,
3150 };
3151
3152 pending_nonempty_selection
3153 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3154 }
3155
3156 pub fn has_pending_selection(&self) -> bool {
3157 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3158 }
3159
3160 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3161 if self.clear_expanded_diff_hunks(cx) {
3162 cx.notify();
3163 return;
3164 }
3165 if self.dismiss_menus_and_popups(true, cx) {
3166 return;
3167 }
3168
3169 if self.mode == EditorMode::Full
3170 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3171 {
3172 return;
3173 }
3174
3175 cx.propagate();
3176 }
3177
3178 pub fn dismiss_menus_and_popups(
3179 &mut self,
3180 should_report_inline_completion_event: bool,
3181 cx: &mut ViewContext<Self>,
3182 ) -> bool {
3183 if self.take_rename(false, cx).is_some() {
3184 return true;
3185 }
3186
3187 if hide_hover(self, cx) {
3188 return true;
3189 }
3190
3191 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3192 return true;
3193 }
3194
3195 if self.hide_context_menu(cx).is_some() {
3196 return true;
3197 }
3198
3199 if self.mouse_context_menu.take().is_some() {
3200 return true;
3201 }
3202
3203 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3204 return true;
3205 }
3206
3207 if self.snippet_stack.pop().is_some() {
3208 return true;
3209 }
3210
3211 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3212 self.dismiss_diagnostics(cx);
3213 return true;
3214 }
3215
3216 false
3217 }
3218
3219 fn linked_editing_ranges_for(
3220 &self,
3221 selection: Range<text::Anchor>,
3222 cx: &AppContext,
3223 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3224 if self.linked_edit_ranges.is_empty() {
3225 return None;
3226 }
3227 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3228 selection.end.buffer_id.and_then(|end_buffer_id| {
3229 if selection.start.buffer_id != Some(end_buffer_id) {
3230 return None;
3231 }
3232 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3233 let snapshot = buffer.read(cx).snapshot();
3234 self.linked_edit_ranges
3235 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3236 .map(|ranges| (ranges, snapshot, buffer))
3237 })?;
3238 use text::ToOffset as TO;
3239 // find offset from the start of current range to current cursor position
3240 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3241
3242 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3243 let start_difference = start_offset - start_byte_offset;
3244 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3245 let end_difference = end_offset - start_byte_offset;
3246 // Current range has associated linked ranges.
3247 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3248 for range in linked_ranges.iter() {
3249 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3250 let end_offset = start_offset + end_difference;
3251 let start_offset = start_offset + start_difference;
3252 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3253 continue;
3254 }
3255 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3256 if s.start.buffer_id != selection.start.buffer_id
3257 || s.end.buffer_id != selection.end.buffer_id
3258 {
3259 return false;
3260 }
3261 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3262 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3263 }) {
3264 continue;
3265 }
3266 let start = buffer_snapshot.anchor_after(start_offset);
3267 let end = buffer_snapshot.anchor_after(end_offset);
3268 linked_edits
3269 .entry(buffer.clone())
3270 .or_default()
3271 .push(start..end);
3272 }
3273 Some(linked_edits)
3274 }
3275
3276 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3277 let text: Arc<str> = text.into();
3278
3279 if self.read_only(cx) {
3280 return;
3281 }
3282
3283 let selections = self.selections.all_adjusted(cx);
3284 let mut bracket_inserted = false;
3285 let mut edits = Vec::new();
3286 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3287 let mut new_selections = Vec::with_capacity(selections.len());
3288 let mut new_autoclose_regions = Vec::new();
3289 let snapshot = self.buffer.read(cx).read(cx);
3290
3291 for (selection, autoclose_region) in
3292 self.selections_with_autoclose_regions(selections, &snapshot)
3293 {
3294 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3295 // Determine if the inserted text matches the opening or closing
3296 // bracket of any of this language's bracket pairs.
3297 let mut bracket_pair = None;
3298 let mut is_bracket_pair_start = false;
3299 let mut is_bracket_pair_end = false;
3300 if !text.is_empty() {
3301 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3302 // and they are removing the character that triggered IME popup.
3303 for (pair, enabled) in scope.brackets() {
3304 if !pair.close && !pair.surround {
3305 continue;
3306 }
3307
3308 if enabled && pair.start.ends_with(text.as_ref()) {
3309 let prefix_len = pair.start.len() - text.len();
3310 let preceding_text_matches_prefix = prefix_len == 0
3311 || (selection.start.column >= (prefix_len as u32)
3312 && snapshot.contains_str_at(
3313 Point::new(
3314 selection.start.row,
3315 selection.start.column - (prefix_len as u32),
3316 ),
3317 &pair.start[..prefix_len],
3318 ));
3319 if preceding_text_matches_prefix {
3320 bracket_pair = Some(pair.clone());
3321 is_bracket_pair_start = true;
3322 break;
3323 }
3324 }
3325 if pair.end.as_str() == text.as_ref() {
3326 bracket_pair = Some(pair.clone());
3327 is_bracket_pair_end = true;
3328 break;
3329 }
3330 }
3331 }
3332
3333 if let Some(bracket_pair) = bracket_pair {
3334 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3335 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3336 let auto_surround =
3337 self.use_auto_surround && snapshot_settings.use_auto_surround;
3338 if selection.is_empty() {
3339 if is_bracket_pair_start {
3340 // If the inserted text is a suffix of an opening bracket and the
3341 // selection is preceded by the rest of the opening bracket, then
3342 // insert the closing bracket.
3343 let following_text_allows_autoclose = snapshot
3344 .chars_at(selection.start)
3345 .next()
3346 .map_or(true, |c| scope.should_autoclose_before(c));
3347
3348 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3349 && bracket_pair.start.len() == 1
3350 {
3351 let target = bracket_pair.start.chars().next().unwrap();
3352 let current_line_count = snapshot
3353 .reversed_chars_at(selection.start)
3354 .take_while(|&c| c != '\n')
3355 .filter(|&c| c == target)
3356 .count();
3357 current_line_count % 2 == 1
3358 } else {
3359 false
3360 };
3361
3362 if autoclose
3363 && bracket_pair.close
3364 && following_text_allows_autoclose
3365 && !is_closing_quote
3366 {
3367 let anchor = snapshot.anchor_before(selection.end);
3368 new_selections.push((selection.map(|_| anchor), text.len()));
3369 new_autoclose_regions.push((
3370 anchor,
3371 text.len(),
3372 selection.id,
3373 bracket_pair.clone(),
3374 ));
3375 edits.push((
3376 selection.range(),
3377 format!("{}{}", text, bracket_pair.end).into(),
3378 ));
3379 bracket_inserted = true;
3380 continue;
3381 }
3382 }
3383
3384 if let Some(region) = autoclose_region {
3385 // If the selection is followed by an auto-inserted closing bracket,
3386 // then don't insert that closing bracket again; just move the selection
3387 // past the closing bracket.
3388 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3389 && text.as_ref() == region.pair.end.as_str();
3390 if should_skip {
3391 let anchor = snapshot.anchor_after(selection.end);
3392 new_selections
3393 .push((selection.map(|_| anchor), region.pair.end.len()));
3394 continue;
3395 }
3396 }
3397
3398 let always_treat_brackets_as_autoclosed = snapshot
3399 .settings_at(selection.start, cx)
3400 .always_treat_brackets_as_autoclosed;
3401 if always_treat_brackets_as_autoclosed
3402 && is_bracket_pair_end
3403 && snapshot.contains_str_at(selection.end, text.as_ref())
3404 {
3405 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3406 // and the inserted text is a closing bracket and the selection is followed
3407 // by the closing bracket then move the selection past the closing bracket.
3408 let anchor = snapshot.anchor_after(selection.end);
3409 new_selections.push((selection.map(|_| anchor), text.len()));
3410 continue;
3411 }
3412 }
3413 // If an opening bracket is 1 character long and is typed while
3414 // text is selected, then surround that text with the bracket pair.
3415 else if auto_surround
3416 && bracket_pair.surround
3417 && is_bracket_pair_start
3418 && bracket_pair.start.chars().count() == 1
3419 {
3420 edits.push((selection.start..selection.start, text.clone()));
3421 edits.push((
3422 selection.end..selection.end,
3423 bracket_pair.end.as_str().into(),
3424 ));
3425 bracket_inserted = true;
3426 new_selections.push((
3427 Selection {
3428 id: selection.id,
3429 start: snapshot.anchor_after(selection.start),
3430 end: snapshot.anchor_before(selection.end),
3431 reversed: selection.reversed,
3432 goal: selection.goal,
3433 },
3434 0,
3435 ));
3436 continue;
3437 }
3438 }
3439 }
3440
3441 if self.auto_replace_emoji_shortcode
3442 && selection.is_empty()
3443 && text.as_ref().ends_with(':')
3444 {
3445 if let Some(possible_emoji_short_code) =
3446 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3447 {
3448 if !possible_emoji_short_code.is_empty() {
3449 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3450 let emoji_shortcode_start = Point::new(
3451 selection.start.row,
3452 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3453 );
3454
3455 // Remove shortcode from buffer
3456 edits.push((
3457 emoji_shortcode_start..selection.start,
3458 "".to_string().into(),
3459 ));
3460 new_selections.push((
3461 Selection {
3462 id: selection.id,
3463 start: snapshot.anchor_after(emoji_shortcode_start),
3464 end: snapshot.anchor_before(selection.start),
3465 reversed: selection.reversed,
3466 goal: selection.goal,
3467 },
3468 0,
3469 ));
3470
3471 // Insert emoji
3472 let selection_start_anchor = snapshot.anchor_after(selection.start);
3473 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3474 edits.push((selection.start..selection.end, emoji.to_string().into()));
3475
3476 continue;
3477 }
3478 }
3479 }
3480 }
3481
3482 // If not handling any auto-close operation, then just replace the selected
3483 // text with the given input and move the selection to the end of the
3484 // newly inserted text.
3485 let anchor = snapshot.anchor_after(selection.end);
3486 if !self.linked_edit_ranges.is_empty() {
3487 let start_anchor = snapshot.anchor_before(selection.start);
3488
3489 let is_word_char = text.chars().next().map_or(true, |char| {
3490 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3491 classifier.is_word(char)
3492 });
3493
3494 if is_word_char {
3495 if let Some(ranges) = self
3496 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3497 {
3498 for (buffer, edits) in ranges {
3499 linked_edits
3500 .entry(buffer.clone())
3501 .or_default()
3502 .extend(edits.into_iter().map(|range| (range, text.clone())));
3503 }
3504 }
3505 }
3506 }
3507
3508 new_selections.push((selection.map(|_| anchor), 0));
3509 edits.push((selection.start..selection.end, text.clone()));
3510 }
3511
3512 drop(snapshot);
3513
3514 self.transact(cx, |this, cx| {
3515 this.buffer.update(cx, |buffer, cx| {
3516 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3517 });
3518 for (buffer, edits) in linked_edits {
3519 buffer.update(cx, |buffer, cx| {
3520 let snapshot = buffer.snapshot();
3521 let edits = edits
3522 .into_iter()
3523 .map(|(range, text)| {
3524 use text::ToPoint as TP;
3525 let end_point = TP::to_point(&range.end, &snapshot);
3526 let start_point = TP::to_point(&range.start, &snapshot);
3527 (start_point..end_point, text)
3528 })
3529 .sorted_by_key(|(range, _)| range.start)
3530 .collect::<Vec<_>>();
3531 buffer.edit(edits, None, cx);
3532 })
3533 }
3534 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3535 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3536 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3537 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3538 .zip(new_selection_deltas)
3539 .map(|(selection, delta)| Selection {
3540 id: selection.id,
3541 start: selection.start + delta,
3542 end: selection.end + delta,
3543 reversed: selection.reversed,
3544 goal: SelectionGoal::None,
3545 })
3546 .collect::<Vec<_>>();
3547
3548 let mut i = 0;
3549 for (position, delta, selection_id, pair) in new_autoclose_regions {
3550 let position = position.to_offset(&map.buffer_snapshot) + delta;
3551 let start = map.buffer_snapshot.anchor_before(position);
3552 let end = map.buffer_snapshot.anchor_after(position);
3553 while let Some(existing_state) = this.autoclose_regions.get(i) {
3554 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3555 Ordering::Less => i += 1,
3556 Ordering::Greater => break,
3557 Ordering::Equal => {
3558 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3559 Ordering::Less => i += 1,
3560 Ordering::Equal => break,
3561 Ordering::Greater => break,
3562 }
3563 }
3564 }
3565 }
3566 this.autoclose_regions.insert(
3567 i,
3568 AutocloseRegion {
3569 selection_id,
3570 range: start..end,
3571 pair,
3572 },
3573 );
3574 }
3575
3576 let had_active_inline_completion = this.has_active_inline_completion(cx);
3577 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3578 s.select(new_selections)
3579 });
3580
3581 if !bracket_inserted {
3582 if let Some(on_type_format_task) =
3583 this.trigger_on_type_formatting(text.to_string(), cx)
3584 {
3585 on_type_format_task.detach_and_log_err(cx);
3586 }
3587 }
3588
3589 let editor_settings = EditorSettings::get_global(cx);
3590 if bracket_inserted
3591 && (editor_settings.auto_signature_help
3592 || editor_settings.show_signature_help_after_edits)
3593 {
3594 this.show_signature_help(&ShowSignatureHelp, cx);
3595 }
3596
3597 let trigger_in_words = !had_active_inline_completion;
3598 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3599 linked_editing_ranges::refresh_linked_ranges(this, cx);
3600 this.refresh_inline_completion(true, false, cx);
3601 });
3602 }
3603
3604 fn find_possible_emoji_shortcode_at_position(
3605 snapshot: &MultiBufferSnapshot,
3606 position: Point,
3607 ) -> Option<String> {
3608 let mut chars = Vec::new();
3609 let mut found_colon = false;
3610 for char in snapshot.reversed_chars_at(position).take(100) {
3611 // Found a possible emoji shortcode in the middle of the buffer
3612 if found_colon {
3613 if char.is_whitespace() {
3614 chars.reverse();
3615 return Some(chars.iter().collect());
3616 }
3617 // If the previous character is not a whitespace, we are in the middle of a word
3618 // and we only want to complete the shortcode if the word is made up of other emojis
3619 let mut containing_word = String::new();
3620 for ch in snapshot
3621 .reversed_chars_at(position)
3622 .skip(chars.len() + 1)
3623 .take(100)
3624 {
3625 if ch.is_whitespace() {
3626 break;
3627 }
3628 containing_word.push(ch);
3629 }
3630 let containing_word = containing_word.chars().rev().collect::<String>();
3631 if util::word_consists_of_emojis(containing_word.as_str()) {
3632 chars.reverse();
3633 return Some(chars.iter().collect());
3634 }
3635 }
3636
3637 if char.is_whitespace() || !char.is_ascii() {
3638 return None;
3639 }
3640 if char == ':' {
3641 found_colon = true;
3642 } else {
3643 chars.push(char);
3644 }
3645 }
3646 // Found a possible emoji shortcode at the beginning of the buffer
3647 chars.reverse();
3648 Some(chars.iter().collect())
3649 }
3650
3651 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3652 self.transact(cx, |this, cx| {
3653 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3654 let selections = this.selections.all::<usize>(cx);
3655 let multi_buffer = this.buffer.read(cx);
3656 let buffer = multi_buffer.snapshot(cx);
3657 selections
3658 .iter()
3659 .map(|selection| {
3660 let start_point = selection.start.to_point(&buffer);
3661 let mut indent =
3662 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3663 indent.len = cmp::min(indent.len, start_point.column);
3664 let start = selection.start;
3665 let end = selection.end;
3666 let selection_is_empty = start == end;
3667 let language_scope = buffer.language_scope_at(start);
3668 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3669 &language_scope
3670 {
3671 let leading_whitespace_len = buffer
3672 .reversed_chars_at(start)
3673 .take_while(|c| c.is_whitespace() && *c != '\n')
3674 .map(|c| c.len_utf8())
3675 .sum::<usize>();
3676
3677 let trailing_whitespace_len = buffer
3678 .chars_at(end)
3679 .take_while(|c| c.is_whitespace() && *c != '\n')
3680 .map(|c| c.len_utf8())
3681 .sum::<usize>();
3682
3683 let insert_extra_newline =
3684 language.brackets().any(|(pair, enabled)| {
3685 let pair_start = pair.start.trim_end();
3686 let pair_end = pair.end.trim_start();
3687
3688 enabled
3689 && pair.newline
3690 && buffer.contains_str_at(
3691 end + trailing_whitespace_len,
3692 pair_end,
3693 )
3694 && buffer.contains_str_at(
3695 (start - leading_whitespace_len)
3696 .saturating_sub(pair_start.len()),
3697 pair_start,
3698 )
3699 });
3700
3701 // Comment extension on newline is allowed only for cursor selections
3702 let comment_delimiter = maybe!({
3703 if !selection_is_empty {
3704 return None;
3705 }
3706
3707 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3708 return None;
3709 }
3710
3711 let delimiters = language.line_comment_prefixes();
3712 let max_len_of_delimiter =
3713 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3714 let (snapshot, range) =
3715 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3716
3717 let mut index_of_first_non_whitespace = 0;
3718 let comment_candidate = snapshot
3719 .chars_for_range(range)
3720 .skip_while(|c| {
3721 let should_skip = c.is_whitespace();
3722 if should_skip {
3723 index_of_first_non_whitespace += 1;
3724 }
3725 should_skip
3726 })
3727 .take(max_len_of_delimiter)
3728 .collect::<String>();
3729 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3730 comment_candidate.starts_with(comment_prefix.as_ref())
3731 })?;
3732 let cursor_is_placed_after_comment_marker =
3733 index_of_first_non_whitespace + comment_prefix.len()
3734 <= start_point.column as usize;
3735 if cursor_is_placed_after_comment_marker {
3736 Some(comment_prefix.clone())
3737 } else {
3738 None
3739 }
3740 });
3741 (comment_delimiter, insert_extra_newline)
3742 } else {
3743 (None, false)
3744 };
3745
3746 let capacity_for_delimiter = comment_delimiter
3747 .as_deref()
3748 .map(str::len)
3749 .unwrap_or_default();
3750 let mut new_text =
3751 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3752 new_text.push('\n');
3753 new_text.extend(indent.chars());
3754 if let Some(delimiter) = &comment_delimiter {
3755 new_text.push_str(delimiter);
3756 }
3757 if insert_extra_newline {
3758 new_text = new_text.repeat(2);
3759 }
3760
3761 let anchor = buffer.anchor_after(end);
3762 let new_selection = selection.map(|_| anchor);
3763 (
3764 (start..end, new_text),
3765 (insert_extra_newline, new_selection),
3766 )
3767 })
3768 .unzip()
3769 };
3770
3771 this.edit_with_autoindent(edits, cx);
3772 let buffer = this.buffer.read(cx).snapshot(cx);
3773 let new_selections = selection_fixup_info
3774 .into_iter()
3775 .map(|(extra_newline_inserted, new_selection)| {
3776 let mut cursor = new_selection.end.to_point(&buffer);
3777 if extra_newline_inserted {
3778 cursor.row -= 1;
3779 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3780 }
3781 new_selection.map(|_| cursor)
3782 })
3783 .collect();
3784
3785 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3786 this.refresh_inline_completion(true, false, cx);
3787 });
3788 }
3789
3790 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3791 let buffer = self.buffer.read(cx);
3792 let snapshot = buffer.snapshot(cx);
3793
3794 let mut edits = Vec::new();
3795 let mut rows = Vec::new();
3796
3797 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3798 let cursor = selection.head();
3799 let row = cursor.row;
3800
3801 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3802
3803 let newline = "\n".to_string();
3804 edits.push((start_of_line..start_of_line, newline));
3805
3806 rows.push(row + rows_inserted as u32);
3807 }
3808
3809 self.transact(cx, |editor, cx| {
3810 editor.edit(edits, cx);
3811
3812 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3813 let mut index = 0;
3814 s.move_cursors_with(|map, _, _| {
3815 let row = rows[index];
3816 index += 1;
3817
3818 let point = Point::new(row, 0);
3819 let boundary = map.next_line_boundary(point).1;
3820 let clipped = map.clip_point(boundary, Bias::Left);
3821
3822 (clipped, SelectionGoal::None)
3823 });
3824 });
3825
3826 let mut indent_edits = Vec::new();
3827 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3828 for row in rows {
3829 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3830 for (row, indent) in indents {
3831 if indent.len == 0 {
3832 continue;
3833 }
3834
3835 let text = match indent.kind {
3836 IndentKind::Space => " ".repeat(indent.len as usize),
3837 IndentKind::Tab => "\t".repeat(indent.len as usize),
3838 };
3839 let point = Point::new(row.0, 0);
3840 indent_edits.push((point..point, text));
3841 }
3842 }
3843 editor.edit(indent_edits, cx);
3844 });
3845 }
3846
3847 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3848 let buffer = self.buffer.read(cx);
3849 let snapshot = buffer.snapshot(cx);
3850
3851 let mut edits = Vec::new();
3852 let mut rows = Vec::new();
3853 let mut rows_inserted = 0;
3854
3855 for selection in self.selections.all_adjusted(cx) {
3856 let cursor = selection.head();
3857 let row = cursor.row;
3858
3859 let point = Point::new(row + 1, 0);
3860 let start_of_line = snapshot.clip_point(point, Bias::Left);
3861
3862 let newline = "\n".to_string();
3863 edits.push((start_of_line..start_of_line, newline));
3864
3865 rows_inserted += 1;
3866 rows.push(row + rows_inserted);
3867 }
3868
3869 self.transact(cx, |editor, cx| {
3870 editor.edit(edits, cx);
3871
3872 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3873 let mut index = 0;
3874 s.move_cursors_with(|map, _, _| {
3875 let row = rows[index];
3876 index += 1;
3877
3878 let point = Point::new(row, 0);
3879 let boundary = map.next_line_boundary(point).1;
3880 let clipped = map.clip_point(boundary, Bias::Left);
3881
3882 (clipped, SelectionGoal::None)
3883 });
3884 });
3885
3886 let mut indent_edits = Vec::new();
3887 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3888 for row in rows {
3889 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3890 for (row, indent) in indents {
3891 if indent.len == 0 {
3892 continue;
3893 }
3894
3895 let text = match indent.kind {
3896 IndentKind::Space => " ".repeat(indent.len as usize),
3897 IndentKind::Tab => "\t".repeat(indent.len as usize),
3898 };
3899 let point = Point::new(row.0, 0);
3900 indent_edits.push((point..point, text));
3901 }
3902 }
3903 editor.edit(indent_edits, cx);
3904 });
3905 }
3906
3907 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3908 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3909 original_indent_columns: Vec::new(),
3910 });
3911 self.insert_with_autoindent_mode(text, autoindent, cx);
3912 }
3913
3914 fn insert_with_autoindent_mode(
3915 &mut self,
3916 text: &str,
3917 autoindent_mode: Option<AutoindentMode>,
3918 cx: &mut ViewContext<Self>,
3919 ) {
3920 if self.read_only(cx) {
3921 return;
3922 }
3923
3924 let text: Arc<str> = text.into();
3925 self.transact(cx, |this, cx| {
3926 let old_selections = this.selections.all_adjusted(cx);
3927 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3928 let anchors = {
3929 let snapshot = buffer.read(cx);
3930 old_selections
3931 .iter()
3932 .map(|s| {
3933 let anchor = snapshot.anchor_after(s.head());
3934 s.map(|_| anchor)
3935 })
3936 .collect::<Vec<_>>()
3937 };
3938 buffer.edit(
3939 old_selections
3940 .iter()
3941 .map(|s| (s.start..s.end, text.clone())),
3942 autoindent_mode,
3943 cx,
3944 );
3945 anchors
3946 });
3947
3948 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3949 s.select_anchors(selection_anchors);
3950 })
3951 });
3952 }
3953
3954 fn trigger_completion_on_input(
3955 &mut self,
3956 text: &str,
3957 trigger_in_words: bool,
3958 cx: &mut ViewContext<Self>,
3959 ) {
3960 if self.is_completion_trigger(text, trigger_in_words, cx) {
3961 self.show_completions(
3962 &ShowCompletions {
3963 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3964 },
3965 cx,
3966 );
3967 } else {
3968 self.hide_context_menu(cx);
3969 }
3970 }
3971
3972 fn is_completion_trigger(
3973 &self,
3974 text: &str,
3975 trigger_in_words: bool,
3976 cx: &mut ViewContext<Self>,
3977 ) -> bool {
3978 let position = self.selections.newest_anchor().head();
3979 let multibuffer = self.buffer.read(cx);
3980 let Some(buffer) = position
3981 .buffer_id
3982 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3983 else {
3984 return false;
3985 };
3986
3987 if let Some(completion_provider) = &self.completion_provider {
3988 completion_provider.is_completion_trigger(
3989 &buffer,
3990 position.text_anchor,
3991 text,
3992 trigger_in_words,
3993 cx,
3994 )
3995 } else {
3996 false
3997 }
3998 }
3999
4000 /// If any empty selections is touching the start of its innermost containing autoclose
4001 /// region, expand it to select the brackets.
4002 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4003 let selections = self.selections.all::<usize>(cx);
4004 let buffer = self.buffer.read(cx).read(cx);
4005 let new_selections = self
4006 .selections_with_autoclose_regions(selections, &buffer)
4007 .map(|(mut selection, region)| {
4008 if !selection.is_empty() {
4009 return selection;
4010 }
4011
4012 if let Some(region) = region {
4013 let mut range = region.range.to_offset(&buffer);
4014 if selection.start == range.start && range.start >= region.pair.start.len() {
4015 range.start -= region.pair.start.len();
4016 if buffer.contains_str_at(range.start, ®ion.pair.start)
4017 && buffer.contains_str_at(range.end, ®ion.pair.end)
4018 {
4019 range.end += region.pair.end.len();
4020 selection.start = range.start;
4021 selection.end = range.end;
4022
4023 return selection;
4024 }
4025 }
4026 }
4027
4028 let always_treat_brackets_as_autoclosed = buffer
4029 .settings_at(selection.start, cx)
4030 .always_treat_brackets_as_autoclosed;
4031
4032 if !always_treat_brackets_as_autoclosed {
4033 return selection;
4034 }
4035
4036 if let Some(scope) = buffer.language_scope_at(selection.start) {
4037 for (pair, enabled) in scope.brackets() {
4038 if !enabled || !pair.close {
4039 continue;
4040 }
4041
4042 if buffer.contains_str_at(selection.start, &pair.end) {
4043 let pair_start_len = pair.start.len();
4044 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
4045 {
4046 selection.start -= pair_start_len;
4047 selection.end += pair.end.len();
4048
4049 return selection;
4050 }
4051 }
4052 }
4053 }
4054
4055 selection
4056 })
4057 .collect();
4058
4059 drop(buffer);
4060 self.change_selections(None, cx, |selections| selections.select(new_selections));
4061 }
4062
4063 /// Iterate the given selections, and for each one, find the smallest surrounding
4064 /// autoclose region. This uses the ordering of the selections and the autoclose
4065 /// regions to avoid repeated comparisons.
4066 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4067 &'a self,
4068 selections: impl IntoIterator<Item = Selection<D>>,
4069 buffer: &'a MultiBufferSnapshot,
4070 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4071 let mut i = 0;
4072 let mut regions = self.autoclose_regions.as_slice();
4073 selections.into_iter().map(move |selection| {
4074 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4075
4076 let mut enclosing = None;
4077 while let Some(pair_state) = regions.get(i) {
4078 if pair_state.range.end.to_offset(buffer) < range.start {
4079 regions = ®ions[i + 1..];
4080 i = 0;
4081 } else if pair_state.range.start.to_offset(buffer) > range.end {
4082 break;
4083 } else {
4084 if pair_state.selection_id == selection.id {
4085 enclosing = Some(pair_state);
4086 }
4087 i += 1;
4088 }
4089 }
4090
4091 (selection, enclosing)
4092 })
4093 }
4094
4095 /// Remove any autoclose regions that no longer contain their selection.
4096 fn invalidate_autoclose_regions(
4097 &mut self,
4098 mut selections: &[Selection<Anchor>],
4099 buffer: &MultiBufferSnapshot,
4100 ) {
4101 self.autoclose_regions.retain(|state| {
4102 let mut i = 0;
4103 while let Some(selection) = selections.get(i) {
4104 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4105 selections = &selections[1..];
4106 continue;
4107 }
4108 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4109 break;
4110 }
4111 if selection.id == state.selection_id {
4112 return true;
4113 } else {
4114 i += 1;
4115 }
4116 }
4117 false
4118 });
4119 }
4120
4121 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4122 let offset = position.to_offset(buffer);
4123 let (word_range, kind) = buffer.surrounding_word(offset, true);
4124 if offset > word_range.start && kind == Some(CharKind::Word) {
4125 Some(
4126 buffer
4127 .text_for_range(word_range.start..offset)
4128 .collect::<String>(),
4129 )
4130 } else {
4131 None
4132 }
4133 }
4134
4135 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4136 self.refresh_inlay_hints(
4137 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4138 cx,
4139 );
4140 }
4141
4142 pub fn inlay_hints_enabled(&self) -> bool {
4143 self.inlay_hint_cache.enabled
4144 }
4145
4146 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4147 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4148 return;
4149 }
4150
4151 let reason_description = reason.description();
4152 let ignore_debounce = matches!(
4153 reason,
4154 InlayHintRefreshReason::SettingsChange(_)
4155 | InlayHintRefreshReason::Toggle(_)
4156 | InlayHintRefreshReason::ExcerptsRemoved(_)
4157 );
4158 let (invalidate_cache, required_languages) = match reason {
4159 InlayHintRefreshReason::Toggle(enabled) => {
4160 self.inlay_hint_cache.enabled = enabled;
4161 if enabled {
4162 (InvalidationStrategy::RefreshRequested, None)
4163 } else {
4164 self.inlay_hint_cache.clear();
4165 self.splice_inlays(
4166 self.visible_inlay_hints(cx)
4167 .iter()
4168 .map(|inlay| inlay.id)
4169 .collect(),
4170 Vec::new(),
4171 cx,
4172 );
4173 return;
4174 }
4175 }
4176 InlayHintRefreshReason::SettingsChange(new_settings) => {
4177 match self.inlay_hint_cache.update_settings(
4178 &self.buffer,
4179 new_settings,
4180 self.visible_inlay_hints(cx),
4181 cx,
4182 ) {
4183 ControlFlow::Break(Some(InlaySplice {
4184 to_remove,
4185 to_insert,
4186 })) => {
4187 self.splice_inlays(to_remove, to_insert, cx);
4188 return;
4189 }
4190 ControlFlow::Break(None) => return,
4191 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4192 }
4193 }
4194 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4195 if let Some(InlaySplice {
4196 to_remove,
4197 to_insert,
4198 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4199 {
4200 self.splice_inlays(to_remove, to_insert, cx);
4201 }
4202 return;
4203 }
4204 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4205 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4206 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4207 }
4208 InlayHintRefreshReason::RefreshRequested => {
4209 (InvalidationStrategy::RefreshRequested, None)
4210 }
4211 };
4212
4213 if let Some(InlaySplice {
4214 to_remove,
4215 to_insert,
4216 }) = self.inlay_hint_cache.spawn_hint_refresh(
4217 reason_description,
4218 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4219 invalidate_cache,
4220 ignore_debounce,
4221 cx,
4222 ) {
4223 self.splice_inlays(to_remove, to_insert, cx);
4224 }
4225 }
4226
4227 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4228 self.display_map
4229 .read(cx)
4230 .current_inlays()
4231 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4232 .cloned()
4233 .collect()
4234 }
4235
4236 pub fn excerpts_for_inlay_hints_query(
4237 &self,
4238 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4239 cx: &mut ViewContext<Editor>,
4240 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4241 let Some(project) = self.project.as_ref() else {
4242 return HashMap::default();
4243 };
4244 let project = project.read(cx);
4245 let multi_buffer = self.buffer().read(cx);
4246 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4247 let multi_buffer_visible_start = self
4248 .scroll_manager
4249 .anchor()
4250 .anchor
4251 .to_point(&multi_buffer_snapshot);
4252 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4253 multi_buffer_visible_start
4254 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4255 Bias::Left,
4256 );
4257 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4258 multi_buffer
4259 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4260 .into_iter()
4261 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4262 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4263 let buffer = buffer_handle.read(cx);
4264 let buffer_file = project::File::from_dyn(buffer.file())?;
4265 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4266 let worktree_entry = buffer_worktree
4267 .read(cx)
4268 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4269 if worktree_entry.is_ignored {
4270 return None;
4271 }
4272
4273 let language = buffer.language()?;
4274 if let Some(restrict_to_languages) = restrict_to_languages {
4275 if !restrict_to_languages.contains(language) {
4276 return None;
4277 }
4278 }
4279 Some((
4280 excerpt_id,
4281 (
4282 buffer_handle,
4283 buffer.version().clone(),
4284 excerpt_visible_range,
4285 ),
4286 ))
4287 })
4288 .collect()
4289 }
4290
4291 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4292 TextLayoutDetails {
4293 text_system: cx.text_system().clone(),
4294 editor_style: self.style.clone().unwrap(),
4295 rem_size: cx.rem_size(),
4296 scroll_anchor: self.scroll_manager.anchor(),
4297 visible_rows: self.visible_line_count(),
4298 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4299 }
4300 }
4301
4302 fn splice_inlays(
4303 &self,
4304 to_remove: Vec<InlayId>,
4305 to_insert: Vec<Inlay>,
4306 cx: &mut ViewContext<Self>,
4307 ) {
4308 self.display_map.update(cx, |display_map, cx| {
4309 display_map.splice_inlays(to_remove, to_insert, cx);
4310 });
4311 cx.notify();
4312 }
4313
4314 fn trigger_on_type_formatting(
4315 &self,
4316 input: String,
4317 cx: &mut ViewContext<Self>,
4318 ) -> Option<Task<Result<()>>> {
4319 if input.len() != 1 {
4320 return None;
4321 }
4322
4323 let project = self.project.as_ref()?;
4324 let position = self.selections.newest_anchor().head();
4325 let (buffer, buffer_position) = self
4326 .buffer
4327 .read(cx)
4328 .text_anchor_for_position(position, cx)?;
4329
4330 let settings = language_settings::language_settings(
4331 buffer
4332 .read(cx)
4333 .language_at(buffer_position)
4334 .map(|l| l.name()),
4335 buffer.read(cx).file(),
4336 cx,
4337 );
4338 if !settings.use_on_type_format {
4339 return None;
4340 }
4341
4342 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4343 // hence we do LSP request & edit on host side only — add formats to host's history.
4344 let push_to_lsp_host_history = true;
4345 // If this is not the host, append its history with new edits.
4346 let push_to_client_history = project.read(cx).is_via_collab();
4347
4348 let on_type_formatting = project.update(cx, |project, cx| {
4349 project.on_type_format(
4350 buffer.clone(),
4351 buffer_position,
4352 input,
4353 push_to_lsp_host_history,
4354 cx,
4355 )
4356 });
4357 Some(cx.spawn(|editor, mut cx| async move {
4358 if let Some(transaction) = on_type_formatting.await? {
4359 if push_to_client_history {
4360 buffer
4361 .update(&mut cx, |buffer, _| {
4362 buffer.push_transaction(transaction, Instant::now());
4363 })
4364 .ok();
4365 }
4366 editor.update(&mut cx, |editor, cx| {
4367 editor.refresh_document_highlights(cx);
4368 })?;
4369 }
4370 Ok(())
4371 }))
4372 }
4373
4374 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4375 if self.pending_rename.is_some() {
4376 return;
4377 }
4378
4379 let Some(provider) = self.completion_provider.as_ref() else {
4380 return;
4381 };
4382
4383 let position = self.selections.newest_anchor().head();
4384 let (buffer, buffer_position) =
4385 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4386 output
4387 } else {
4388 return;
4389 };
4390
4391 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4392 let is_followup_invoke = {
4393 let context_menu_state = self.context_menu.read();
4394 matches!(
4395 context_menu_state.deref(),
4396 Some(ContextMenu::Completions(_))
4397 )
4398 };
4399 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4400 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4401 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4402 CompletionTriggerKind::TRIGGER_CHARACTER
4403 }
4404
4405 _ => CompletionTriggerKind::INVOKED,
4406 };
4407 let completion_context = CompletionContext {
4408 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4409 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4410 Some(String::from(trigger))
4411 } else {
4412 None
4413 }
4414 }),
4415 trigger_kind,
4416 };
4417 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4418 let sort_completions = provider.sort_completions();
4419
4420 let id = post_inc(&mut self.next_completion_id);
4421 let task = cx.spawn(|this, mut cx| {
4422 async move {
4423 this.update(&mut cx, |this, _| {
4424 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4425 })?;
4426 let completions = completions.await.log_err();
4427 let menu = if let Some(completions) = completions {
4428 let mut menu = CompletionsMenu {
4429 id,
4430 sort_completions,
4431 initial_position: position,
4432 match_candidates: completions
4433 .iter()
4434 .enumerate()
4435 .map(|(id, completion)| {
4436 StringMatchCandidate::new(
4437 id,
4438 completion.label.text[completion.label.filter_range.clone()]
4439 .into(),
4440 )
4441 })
4442 .collect(),
4443 buffer: buffer.clone(),
4444 completions: Arc::new(RwLock::new(completions.into())),
4445 matches: Vec::new().into(),
4446 selected_item: 0,
4447 scroll_handle: UniformListScrollHandle::new(),
4448 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4449 DebouncedDelay::new(),
4450 )),
4451 };
4452 menu.filter(query.as_deref(), cx.background_executor().clone())
4453 .await;
4454
4455 if menu.matches.is_empty() {
4456 None
4457 } else {
4458 this.update(&mut cx, |editor, cx| {
4459 let completions = menu.completions.clone();
4460 let matches = menu.matches.clone();
4461
4462 let delay_ms = EditorSettings::get_global(cx)
4463 .completion_documentation_secondary_query_debounce;
4464 let delay = Duration::from_millis(delay_ms);
4465 editor
4466 .completion_documentation_pre_resolve_debounce
4467 .fire_new(delay, cx, |editor, cx| {
4468 CompletionsMenu::pre_resolve_completion_documentation(
4469 buffer,
4470 completions,
4471 matches,
4472 editor,
4473 cx,
4474 )
4475 });
4476 })
4477 .ok();
4478 Some(menu)
4479 }
4480 } else {
4481 None
4482 };
4483
4484 this.update(&mut cx, |this, cx| {
4485 let mut context_menu = this.context_menu.write();
4486 match context_menu.as_ref() {
4487 None => {}
4488
4489 Some(ContextMenu::Completions(prev_menu)) => {
4490 if prev_menu.id > id {
4491 return;
4492 }
4493 }
4494
4495 _ => return,
4496 }
4497
4498 if this.focus_handle.is_focused(cx) && menu.is_some() {
4499 let menu = menu.unwrap();
4500 *context_menu = Some(ContextMenu::Completions(menu));
4501 drop(context_menu);
4502 this.discard_inline_completion(false, cx);
4503 cx.notify();
4504 } else if this.completion_tasks.len() <= 1 {
4505 // If there are no more completion tasks and the last menu was
4506 // empty, we should hide it. If it was already hidden, we should
4507 // also show the copilot completion when available.
4508 drop(context_menu);
4509 if this.hide_context_menu(cx).is_none() {
4510 this.update_visible_inline_completion(cx);
4511 }
4512 }
4513 })?;
4514
4515 Ok::<_, anyhow::Error>(())
4516 }
4517 .log_err()
4518 });
4519
4520 self.completion_tasks.push((id, task));
4521 }
4522
4523 pub fn confirm_completion(
4524 &mut self,
4525 action: &ConfirmCompletion,
4526 cx: &mut ViewContext<Self>,
4527 ) -> Option<Task<Result<()>>> {
4528 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4529 }
4530
4531 pub fn compose_completion(
4532 &mut self,
4533 action: &ComposeCompletion,
4534 cx: &mut ViewContext<Self>,
4535 ) -> Option<Task<Result<()>>> {
4536 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4537 }
4538
4539 fn do_completion(
4540 &mut self,
4541 item_ix: Option<usize>,
4542 intent: CompletionIntent,
4543 cx: &mut ViewContext<Editor>,
4544 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4545 use language::ToOffset as _;
4546
4547 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4548 menu
4549 } else {
4550 return None;
4551 };
4552
4553 let mat = completions_menu
4554 .matches
4555 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4556 let buffer_handle = completions_menu.buffer;
4557 let completions = completions_menu.completions.read();
4558 let completion = completions.get(mat.candidate_id)?;
4559 cx.stop_propagation();
4560
4561 let snippet;
4562 let text;
4563
4564 if completion.is_snippet() {
4565 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4566 text = snippet.as_ref().unwrap().text.clone();
4567 } else {
4568 snippet = None;
4569 text = completion.new_text.clone();
4570 };
4571 let selections = self.selections.all::<usize>(cx);
4572 let buffer = buffer_handle.read(cx);
4573 let old_range = completion.old_range.to_offset(buffer);
4574 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4575
4576 let newest_selection = self.selections.newest_anchor();
4577 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4578 return None;
4579 }
4580
4581 let lookbehind = newest_selection
4582 .start
4583 .text_anchor
4584 .to_offset(buffer)
4585 .saturating_sub(old_range.start);
4586 let lookahead = old_range
4587 .end
4588 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4589 let mut common_prefix_len = old_text
4590 .bytes()
4591 .zip(text.bytes())
4592 .take_while(|(a, b)| a == b)
4593 .count();
4594
4595 let snapshot = self.buffer.read(cx).snapshot(cx);
4596 let mut range_to_replace: Option<Range<isize>> = None;
4597 let mut ranges = Vec::new();
4598 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4599 for selection in &selections {
4600 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4601 let start = selection.start.saturating_sub(lookbehind);
4602 let end = selection.end + lookahead;
4603 if selection.id == newest_selection.id {
4604 range_to_replace = Some(
4605 ((start + common_prefix_len) as isize - selection.start as isize)
4606 ..(end as isize - selection.start as isize),
4607 );
4608 }
4609 ranges.push(start + common_prefix_len..end);
4610 } else {
4611 common_prefix_len = 0;
4612 ranges.clear();
4613 ranges.extend(selections.iter().map(|s| {
4614 if s.id == newest_selection.id {
4615 range_to_replace = Some(
4616 old_range.start.to_offset_utf16(&snapshot).0 as isize
4617 - selection.start as isize
4618 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4619 - selection.start as isize,
4620 );
4621 old_range.clone()
4622 } else {
4623 s.start..s.end
4624 }
4625 }));
4626 break;
4627 }
4628 if !self.linked_edit_ranges.is_empty() {
4629 let start_anchor = snapshot.anchor_before(selection.head());
4630 let end_anchor = snapshot.anchor_after(selection.tail());
4631 if let Some(ranges) = self
4632 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4633 {
4634 for (buffer, edits) in ranges {
4635 linked_edits.entry(buffer.clone()).or_default().extend(
4636 edits
4637 .into_iter()
4638 .map(|range| (range, text[common_prefix_len..].to_owned())),
4639 );
4640 }
4641 }
4642 }
4643 }
4644 let text = &text[common_prefix_len..];
4645
4646 cx.emit(EditorEvent::InputHandled {
4647 utf16_range_to_replace: range_to_replace,
4648 text: text.into(),
4649 });
4650
4651 self.transact(cx, |this, cx| {
4652 if let Some(mut snippet) = snippet {
4653 snippet.text = text.to_string();
4654 for tabstop in snippet.tabstops.iter_mut().flatten() {
4655 tabstop.start -= common_prefix_len as isize;
4656 tabstop.end -= common_prefix_len as isize;
4657 }
4658
4659 this.insert_snippet(&ranges, snippet, cx).log_err();
4660 } else {
4661 this.buffer.update(cx, |buffer, cx| {
4662 buffer.edit(
4663 ranges.iter().map(|range| (range.clone(), text)),
4664 this.autoindent_mode.clone(),
4665 cx,
4666 );
4667 });
4668 }
4669 for (buffer, edits) in linked_edits {
4670 buffer.update(cx, |buffer, cx| {
4671 let snapshot = buffer.snapshot();
4672 let edits = edits
4673 .into_iter()
4674 .map(|(range, text)| {
4675 use text::ToPoint as TP;
4676 let end_point = TP::to_point(&range.end, &snapshot);
4677 let start_point = TP::to_point(&range.start, &snapshot);
4678 (start_point..end_point, text)
4679 })
4680 .sorted_by_key(|(range, _)| range.start)
4681 .collect::<Vec<_>>();
4682 buffer.edit(edits, None, cx);
4683 })
4684 }
4685
4686 this.refresh_inline_completion(true, false, cx);
4687 });
4688
4689 let show_new_completions_on_confirm = completion
4690 .confirm
4691 .as_ref()
4692 .map_or(false, |confirm| confirm(intent, cx));
4693 if show_new_completions_on_confirm {
4694 self.show_completions(&ShowCompletions { trigger: None }, cx);
4695 }
4696
4697 let provider = self.completion_provider.as_ref()?;
4698 let apply_edits = provider.apply_additional_edits_for_completion(
4699 buffer_handle,
4700 completion.clone(),
4701 true,
4702 cx,
4703 );
4704
4705 let editor_settings = EditorSettings::get_global(cx);
4706 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4707 // After the code completion is finished, users often want to know what signatures are needed.
4708 // so we should automatically call signature_help
4709 self.show_signature_help(&ShowSignatureHelp, cx);
4710 }
4711
4712 Some(cx.foreground_executor().spawn(async move {
4713 apply_edits.await?;
4714 Ok(())
4715 }))
4716 }
4717
4718 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4719 let mut context_menu = self.context_menu.write();
4720 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4721 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4722 // Toggle if we're selecting the same one
4723 *context_menu = None;
4724 cx.notify();
4725 return;
4726 } else {
4727 // Otherwise, clear it and start a new one
4728 *context_menu = None;
4729 cx.notify();
4730 }
4731 }
4732 drop(context_menu);
4733 let snapshot = self.snapshot(cx);
4734 let deployed_from_indicator = action.deployed_from_indicator;
4735 let mut task = self.code_actions_task.take();
4736 let action = action.clone();
4737 cx.spawn(|editor, mut cx| async move {
4738 while let Some(prev_task) = task {
4739 prev_task.await.log_err();
4740 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4741 }
4742
4743 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4744 if editor.focus_handle.is_focused(cx) {
4745 let multibuffer_point = action
4746 .deployed_from_indicator
4747 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4748 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4749 let (buffer, buffer_row) = snapshot
4750 .buffer_snapshot
4751 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4752 .and_then(|(buffer_snapshot, range)| {
4753 editor
4754 .buffer
4755 .read(cx)
4756 .buffer(buffer_snapshot.remote_id())
4757 .map(|buffer| (buffer, range.start.row))
4758 })?;
4759 let (_, code_actions) = editor
4760 .available_code_actions
4761 .clone()
4762 .and_then(|(location, code_actions)| {
4763 let snapshot = location.buffer.read(cx).snapshot();
4764 let point_range = location.range.to_point(&snapshot);
4765 let point_range = point_range.start.row..=point_range.end.row;
4766 if point_range.contains(&buffer_row) {
4767 Some((location, code_actions))
4768 } else {
4769 None
4770 }
4771 })
4772 .unzip();
4773 let buffer_id = buffer.read(cx).remote_id();
4774 let tasks = editor
4775 .tasks
4776 .get(&(buffer_id, buffer_row))
4777 .map(|t| Arc::new(t.to_owned()));
4778 if tasks.is_none() && code_actions.is_none() {
4779 return None;
4780 }
4781
4782 editor.completion_tasks.clear();
4783 editor.discard_inline_completion(false, cx);
4784 let task_context =
4785 tasks
4786 .as_ref()
4787 .zip(editor.project.clone())
4788 .map(|(tasks, project)| {
4789 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4790 });
4791
4792 Some(cx.spawn(|editor, mut cx| async move {
4793 let task_context = match task_context {
4794 Some(task_context) => task_context.await,
4795 None => None,
4796 };
4797 let resolved_tasks =
4798 tasks.zip(task_context).map(|(tasks, task_context)| {
4799 Arc::new(ResolvedTasks {
4800 templates: tasks.resolve(&task_context).collect(),
4801 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4802 multibuffer_point.row,
4803 tasks.column,
4804 )),
4805 })
4806 });
4807 let spawn_straight_away = resolved_tasks
4808 .as_ref()
4809 .map_or(false, |tasks| tasks.templates.len() == 1)
4810 && code_actions
4811 .as_ref()
4812 .map_or(true, |actions| actions.is_empty());
4813 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4814 *editor.context_menu.write() =
4815 Some(ContextMenu::CodeActions(CodeActionsMenu {
4816 buffer,
4817 actions: CodeActionContents {
4818 tasks: resolved_tasks,
4819 actions: code_actions,
4820 },
4821 selected_item: Default::default(),
4822 scroll_handle: UniformListScrollHandle::default(),
4823 deployed_from_indicator,
4824 }));
4825 if spawn_straight_away {
4826 if let Some(task) = editor.confirm_code_action(
4827 &ConfirmCodeAction { item_ix: Some(0) },
4828 cx,
4829 ) {
4830 cx.notify();
4831 return task;
4832 }
4833 }
4834 cx.notify();
4835 Task::ready(Ok(()))
4836 }) {
4837 task.await
4838 } else {
4839 Ok(())
4840 }
4841 }))
4842 } else {
4843 Some(Task::ready(Ok(())))
4844 }
4845 })?;
4846 if let Some(task) = spawned_test_task {
4847 task.await?;
4848 }
4849
4850 Ok::<_, anyhow::Error>(())
4851 })
4852 .detach_and_log_err(cx);
4853 }
4854
4855 pub fn confirm_code_action(
4856 &mut self,
4857 action: &ConfirmCodeAction,
4858 cx: &mut ViewContext<Self>,
4859 ) -> Option<Task<Result<()>>> {
4860 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4861 menu
4862 } else {
4863 return None;
4864 };
4865 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4866 let action = actions_menu.actions.get(action_ix)?;
4867 let title = action.label();
4868 let buffer = actions_menu.buffer;
4869 let workspace = self.workspace()?;
4870
4871 match action {
4872 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4873 workspace.update(cx, |workspace, cx| {
4874 workspace::tasks::schedule_resolved_task(
4875 workspace,
4876 task_source_kind,
4877 resolved_task,
4878 false,
4879 cx,
4880 );
4881
4882 Some(Task::ready(Ok(())))
4883 })
4884 }
4885 CodeActionsItem::CodeAction {
4886 excerpt_id,
4887 action,
4888 provider,
4889 } => {
4890 let apply_code_action =
4891 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4892 let workspace = workspace.downgrade();
4893 Some(cx.spawn(|editor, cx| async move {
4894 let project_transaction = apply_code_action.await?;
4895 Self::open_project_transaction(
4896 &editor,
4897 workspace,
4898 project_transaction,
4899 title,
4900 cx,
4901 )
4902 .await
4903 }))
4904 }
4905 }
4906 }
4907
4908 pub async fn open_project_transaction(
4909 this: &WeakView<Editor>,
4910 workspace: WeakView<Workspace>,
4911 transaction: ProjectTransaction,
4912 title: String,
4913 mut cx: AsyncWindowContext,
4914 ) -> Result<()> {
4915 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4916 cx.update(|cx| {
4917 entries.sort_unstable_by_key(|(buffer, _)| {
4918 buffer.read(cx).file().map(|f| f.path().clone())
4919 });
4920 })?;
4921
4922 // If the project transaction's edits are all contained within this editor, then
4923 // avoid opening a new editor to display them.
4924
4925 if let Some((buffer, transaction)) = entries.first() {
4926 if entries.len() == 1 {
4927 let excerpt = this.update(&mut cx, |editor, cx| {
4928 editor
4929 .buffer()
4930 .read(cx)
4931 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4932 })?;
4933 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4934 if excerpted_buffer == *buffer {
4935 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4936 let excerpt_range = excerpt_range.to_offset(buffer);
4937 buffer
4938 .edited_ranges_for_transaction::<usize>(transaction)
4939 .all(|range| {
4940 excerpt_range.start <= range.start
4941 && excerpt_range.end >= range.end
4942 })
4943 })?;
4944
4945 if all_edits_within_excerpt {
4946 return Ok(());
4947 }
4948 }
4949 }
4950 }
4951 } else {
4952 return Ok(());
4953 }
4954
4955 let mut ranges_to_highlight = Vec::new();
4956 let excerpt_buffer = cx.new_model(|cx| {
4957 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4958 for (buffer_handle, transaction) in &entries {
4959 let buffer = buffer_handle.read(cx);
4960 ranges_to_highlight.extend(
4961 multibuffer.push_excerpts_with_context_lines(
4962 buffer_handle.clone(),
4963 buffer
4964 .edited_ranges_for_transaction::<usize>(transaction)
4965 .collect(),
4966 DEFAULT_MULTIBUFFER_CONTEXT,
4967 cx,
4968 ),
4969 );
4970 }
4971 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4972 multibuffer
4973 })?;
4974
4975 workspace.update(&mut cx, |workspace, cx| {
4976 let project = workspace.project().clone();
4977 let editor =
4978 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4979 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4980 editor.update(cx, |editor, cx| {
4981 editor.highlight_background::<Self>(
4982 &ranges_to_highlight,
4983 |theme| theme.editor_highlighted_line_background,
4984 cx,
4985 );
4986 });
4987 })?;
4988
4989 Ok(())
4990 }
4991
4992 pub fn clear_code_action_providers(&mut self) {
4993 self.code_action_providers.clear();
4994 self.available_code_actions.take();
4995 }
4996
4997 pub fn push_code_action_provider(
4998 &mut self,
4999 provider: Arc<dyn CodeActionProvider>,
5000 cx: &mut ViewContext<Self>,
5001 ) {
5002 self.code_action_providers.push(provider);
5003 self.refresh_code_actions(cx);
5004 }
5005
5006 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5007 let buffer = self.buffer.read(cx);
5008 let newest_selection = self.selections.newest_anchor().clone();
5009 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5010 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5011 if start_buffer != end_buffer {
5012 return None;
5013 }
5014
5015 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5016 cx.background_executor()
5017 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5018 .await;
5019
5020 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5021 let providers = this.code_action_providers.clone();
5022 let tasks = this
5023 .code_action_providers
5024 .iter()
5025 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5026 .collect::<Vec<_>>();
5027 (providers, tasks)
5028 })?;
5029
5030 let mut actions = Vec::new();
5031 for (provider, provider_actions) in
5032 providers.into_iter().zip(future::join_all(tasks).await)
5033 {
5034 if let Some(provider_actions) = provider_actions.log_err() {
5035 actions.extend(provider_actions.into_iter().map(|action| {
5036 AvailableCodeAction {
5037 excerpt_id: newest_selection.start.excerpt_id,
5038 action,
5039 provider: provider.clone(),
5040 }
5041 }));
5042 }
5043 }
5044
5045 this.update(&mut cx, |this, cx| {
5046 this.available_code_actions = if actions.is_empty() {
5047 None
5048 } else {
5049 Some((
5050 Location {
5051 buffer: start_buffer,
5052 range: start..end,
5053 },
5054 actions.into(),
5055 ))
5056 };
5057 cx.notify();
5058 })
5059 }));
5060 None
5061 }
5062
5063 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5064 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5065 self.show_git_blame_inline = false;
5066
5067 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5068 cx.background_executor().timer(delay).await;
5069
5070 this.update(&mut cx, |this, cx| {
5071 this.show_git_blame_inline = true;
5072 cx.notify();
5073 })
5074 .log_err();
5075 }));
5076 }
5077 }
5078
5079 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5080 if self.pending_rename.is_some() {
5081 return None;
5082 }
5083
5084 let provider = self.semantics_provider.clone()?;
5085 let buffer = self.buffer.read(cx);
5086 let newest_selection = self.selections.newest_anchor().clone();
5087 let cursor_position = newest_selection.head();
5088 let (cursor_buffer, cursor_buffer_position) =
5089 buffer.text_anchor_for_position(cursor_position, cx)?;
5090 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5091 if cursor_buffer != tail_buffer {
5092 return None;
5093 }
5094
5095 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5096 cx.background_executor()
5097 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5098 .await;
5099
5100 let highlights = if let Some(highlights) = cx
5101 .update(|cx| {
5102 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5103 })
5104 .ok()
5105 .flatten()
5106 {
5107 highlights.await.log_err()
5108 } else {
5109 None
5110 };
5111
5112 if let Some(highlights) = highlights {
5113 this.update(&mut cx, |this, cx| {
5114 if this.pending_rename.is_some() {
5115 return;
5116 }
5117
5118 let buffer_id = cursor_position.buffer_id;
5119 let buffer = this.buffer.read(cx);
5120 if !buffer
5121 .text_anchor_for_position(cursor_position, cx)
5122 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5123 {
5124 return;
5125 }
5126
5127 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5128 let mut write_ranges = Vec::new();
5129 let mut read_ranges = Vec::new();
5130 for highlight in highlights {
5131 for (excerpt_id, excerpt_range) in
5132 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5133 {
5134 let start = highlight
5135 .range
5136 .start
5137 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5138 let end = highlight
5139 .range
5140 .end
5141 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5142 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5143 continue;
5144 }
5145
5146 let range = Anchor {
5147 buffer_id,
5148 excerpt_id,
5149 text_anchor: start,
5150 }..Anchor {
5151 buffer_id,
5152 excerpt_id,
5153 text_anchor: end,
5154 };
5155 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5156 write_ranges.push(range);
5157 } else {
5158 read_ranges.push(range);
5159 }
5160 }
5161 }
5162
5163 this.highlight_background::<DocumentHighlightRead>(
5164 &read_ranges,
5165 |theme| theme.editor_document_highlight_read_background,
5166 cx,
5167 );
5168 this.highlight_background::<DocumentHighlightWrite>(
5169 &write_ranges,
5170 |theme| theme.editor_document_highlight_write_background,
5171 cx,
5172 );
5173 cx.notify();
5174 })
5175 .log_err();
5176 }
5177 }));
5178 None
5179 }
5180
5181 pub fn refresh_inline_completion(
5182 &mut self,
5183 debounce: bool,
5184 user_requested: bool,
5185 cx: &mut ViewContext<Self>,
5186 ) -> Option<()> {
5187 let provider = self.inline_completion_provider()?;
5188 let cursor = self.selections.newest_anchor().head();
5189 let (buffer, cursor_buffer_position) =
5190 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5191
5192 if !user_requested
5193 && (!self.enable_inline_completions
5194 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5195 {
5196 self.discard_inline_completion(false, cx);
5197 return None;
5198 }
5199
5200 self.update_visible_inline_completion(cx);
5201 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5202 Some(())
5203 }
5204
5205 fn cycle_inline_completion(
5206 &mut self,
5207 direction: Direction,
5208 cx: &mut ViewContext<Self>,
5209 ) -> Option<()> {
5210 let provider = self.inline_completion_provider()?;
5211 let cursor = self.selections.newest_anchor().head();
5212 let (buffer, cursor_buffer_position) =
5213 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5214 if !self.enable_inline_completions
5215 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5216 {
5217 return None;
5218 }
5219
5220 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5221 self.update_visible_inline_completion(cx);
5222
5223 Some(())
5224 }
5225
5226 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5227 if !self.has_active_inline_completion(cx) {
5228 self.refresh_inline_completion(false, true, cx);
5229 return;
5230 }
5231
5232 self.update_visible_inline_completion(cx);
5233 }
5234
5235 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5236 self.show_cursor_names(cx);
5237 }
5238
5239 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5240 self.show_cursor_names = true;
5241 cx.notify();
5242 cx.spawn(|this, mut cx| async move {
5243 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5244 this.update(&mut cx, |this, cx| {
5245 this.show_cursor_names = false;
5246 cx.notify()
5247 })
5248 .ok()
5249 })
5250 .detach();
5251 }
5252
5253 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5254 if self.has_active_inline_completion(cx) {
5255 self.cycle_inline_completion(Direction::Next, cx);
5256 } else {
5257 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5258 if is_copilot_disabled {
5259 cx.propagate();
5260 }
5261 }
5262 }
5263
5264 pub fn previous_inline_completion(
5265 &mut self,
5266 _: &PreviousInlineCompletion,
5267 cx: &mut ViewContext<Self>,
5268 ) {
5269 if self.has_active_inline_completion(cx) {
5270 self.cycle_inline_completion(Direction::Prev, cx);
5271 } else {
5272 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5273 if is_copilot_disabled {
5274 cx.propagate();
5275 }
5276 }
5277 }
5278
5279 pub fn accept_inline_completion(
5280 &mut self,
5281 _: &AcceptInlineCompletion,
5282 cx: &mut ViewContext<Self>,
5283 ) {
5284 let Some(completion) = self.take_active_inline_completion(cx) else {
5285 return;
5286 };
5287 if let Some(provider) = self.inline_completion_provider() {
5288 provider.accept(cx);
5289 }
5290
5291 cx.emit(EditorEvent::InputHandled {
5292 utf16_range_to_replace: None,
5293 text: completion.text.to_string().into(),
5294 });
5295
5296 if let Some(range) = completion.delete_range {
5297 self.change_selections(None, cx, |s| s.select_ranges([range]))
5298 }
5299 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5300 self.refresh_inline_completion(true, true, cx);
5301 cx.notify();
5302 }
5303
5304 pub fn accept_partial_inline_completion(
5305 &mut self,
5306 _: &AcceptPartialInlineCompletion,
5307 cx: &mut ViewContext<Self>,
5308 ) {
5309 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5310 if let Some(completion) = self.take_active_inline_completion(cx) {
5311 let mut partial_completion = completion
5312 .text
5313 .chars()
5314 .by_ref()
5315 .take_while(|c| c.is_alphabetic())
5316 .collect::<String>();
5317 if partial_completion.is_empty() {
5318 partial_completion = completion
5319 .text
5320 .chars()
5321 .by_ref()
5322 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5323 .collect::<String>();
5324 }
5325
5326 cx.emit(EditorEvent::InputHandled {
5327 utf16_range_to_replace: None,
5328 text: partial_completion.clone().into(),
5329 });
5330
5331 if let Some(range) = completion.delete_range {
5332 self.change_selections(None, cx, |s| s.select_ranges([range]))
5333 }
5334 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5335
5336 self.refresh_inline_completion(true, true, cx);
5337 cx.notify();
5338 }
5339 }
5340 }
5341
5342 fn discard_inline_completion(
5343 &mut self,
5344 should_report_inline_completion_event: bool,
5345 cx: &mut ViewContext<Self>,
5346 ) -> bool {
5347 if let Some(provider) = self.inline_completion_provider() {
5348 provider.discard(should_report_inline_completion_event, cx);
5349 }
5350
5351 self.take_active_inline_completion(cx).is_some()
5352 }
5353
5354 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5355 if let Some(completion) = self.active_inline_completion.as_ref() {
5356 let buffer = self.buffer.read(cx).read(cx);
5357 completion.position.is_valid(&buffer)
5358 } else {
5359 false
5360 }
5361 }
5362
5363 fn take_active_inline_completion(
5364 &mut self,
5365 cx: &mut ViewContext<Self>,
5366 ) -> Option<CompletionState> {
5367 let completion = self.active_inline_completion.take()?;
5368 let render_inlay_ids = completion.render_inlay_ids.clone();
5369 self.display_map.update(cx, |map, cx| {
5370 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5371 });
5372 let buffer = self.buffer.read(cx).read(cx);
5373
5374 if completion.position.is_valid(&buffer) {
5375 Some(completion)
5376 } else {
5377 None
5378 }
5379 }
5380
5381 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5382 let selection = self.selections.newest_anchor();
5383 let cursor = selection.head();
5384
5385 let excerpt_id = cursor.excerpt_id;
5386
5387 if self.context_menu.read().is_none()
5388 && self.completion_tasks.is_empty()
5389 && selection.start == selection.end
5390 {
5391 if let Some(provider) = self.inline_completion_provider() {
5392 if let Some((buffer, cursor_buffer_position)) =
5393 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5394 {
5395 if let Some(proposal) =
5396 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5397 {
5398 let mut to_remove = Vec::new();
5399 if let Some(completion) = self.active_inline_completion.take() {
5400 to_remove.extend(completion.render_inlay_ids.iter());
5401 }
5402
5403 let to_add = proposal
5404 .inlays
5405 .iter()
5406 .filter_map(|inlay| {
5407 let snapshot = self.buffer.read(cx).snapshot(cx);
5408 let id = post_inc(&mut self.next_inlay_id);
5409 match inlay {
5410 InlayProposal::Hint(position, hint) => {
5411 let position =
5412 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5413 Some(Inlay::hint(id, position, hint))
5414 }
5415 InlayProposal::Suggestion(position, text) => {
5416 let position =
5417 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5418 Some(Inlay::suggestion(id, position, text.clone()))
5419 }
5420 }
5421 })
5422 .collect_vec();
5423
5424 self.active_inline_completion = Some(CompletionState {
5425 position: cursor,
5426 text: proposal.text,
5427 delete_range: proposal.delete_range.and_then(|range| {
5428 let snapshot = self.buffer.read(cx).snapshot(cx);
5429 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5430 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5431 Some(start?..end?)
5432 }),
5433 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5434 });
5435
5436 self.display_map
5437 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5438
5439 cx.notify();
5440 return;
5441 }
5442 }
5443 }
5444 }
5445
5446 self.discard_inline_completion(false, cx);
5447 }
5448
5449 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5450 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5451 }
5452
5453 fn render_code_actions_indicator(
5454 &self,
5455 _style: &EditorStyle,
5456 row: DisplayRow,
5457 is_active: bool,
5458 cx: &mut ViewContext<Self>,
5459 ) -> Option<IconButton> {
5460 if self.available_code_actions.is_some() {
5461 Some(
5462 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5463 .shape(ui::IconButtonShape::Square)
5464 .icon_size(IconSize::XSmall)
5465 .icon_color(Color::Muted)
5466 .selected(is_active)
5467 .tooltip({
5468 let focus_handle = self.focus_handle.clone();
5469 move |cx| {
5470 Tooltip::for_action_in(
5471 "Toggle Code Actions",
5472 &ToggleCodeActions {
5473 deployed_from_indicator: None,
5474 },
5475 &focus_handle,
5476 cx,
5477 )
5478 }
5479 })
5480 .on_click(cx.listener(move |editor, _e, cx| {
5481 editor.focus(cx);
5482 editor.toggle_code_actions(
5483 &ToggleCodeActions {
5484 deployed_from_indicator: Some(row),
5485 },
5486 cx,
5487 );
5488 })),
5489 )
5490 } else {
5491 None
5492 }
5493 }
5494
5495 fn clear_tasks(&mut self) {
5496 self.tasks.clear()
5497 }
5498
5499 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5500 if self.tasks.insert(key, value).is_some() {
5501 // This case should hopefully be rare, but just in case...
5502 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5503 }
5504 }
5505
5506 fn build_tasks_context(
5507 project: &Model<Project>,
5508 buffer: &Model<Buffer>,
5509 buffer_row: u32,
5510 tasks: &Arc<RunnableTasks>,
5511 cx: &mut ViewContext<Self>,
5512 ) -> Task<Option<task::TaskContext>> {
5513 let position = Point::new(buffer_row, tasks.column);
5514 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5515 let location = Location {
5516 buffer: buffer.clone(),
5517 range: range_start..range_start,
5518 };
5519 // Fill in the environmental variables from the tree-sitter captures
5520 let mut captured_task_variables = TaskVariables::default();
5521 for (capture_name, value) in tasks.extra_variables.clone() {
5522 captured_task_variables.insert(
5523 task::VariableName::Custom(capture_name.into()),
5524 value.clone(),
5525 );
5526 }
5527 project.update(cx, |project, cx| {
5528 project.task_store().update(cx, |task_store, cx| {
5529 task_store.task_context_for_location(captured_task_variables, location, cx)
5530 })
5531 })
5532 }
5533
5534 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5535 let Some((workspace, _)) = self.workspace.clone() else {
5536 return;
5537 };
5538 let Some(project) = self.project.clone() else {
5539 return;
5540 };
5541
5542 // Try to find a closest, enclosing node using tree-sitter that has a
5543 // task
5544 let Some((buffer, buffer_row, tasks)) = self
5545 .find_enclosing_node_task(cx)
5546 // Or find the task that's closest in row-distance.
5547 .or_else(|| self.find_closest_task(cx))
5548 else {
5549 return;
5550 };
5551
5552 let reveal_strategy = action.reveal;
5553 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5554 cx.spawn(|_, mut cx| async move {
5555 let context = task_context.await?;
5556 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5557
5558 let resolved = resolved_task.resolved.as_mut()?;
5559 resolved.reveal = reveal_strategy;
5560
5561 workspace
5562 .update(&mut cx, |workspace, cx| {
5563 workspace::tasks::schedule_resolved_task(
5564 workspace,
5565 task_source_kind,
5566 resolved_task,
5567 false,
5568 cx,
5569 );
5570 })
5571 .ok()
5572 })
5573 .detach();
5574 }
5575
5576 fn find_closest_task(
5577 &mut self,
5578 cx: &mut ViewContext<Self>,
5579 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5580 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5581
5582 let ((buffer_id, row), tasks) = self
5583 .tasks
5584 .iter()
5585 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5586
5587 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5588 let tasks = Arc::new(tasks.to_owned());
5589 Some((buffer, *row, tasks))
5590 }
5591
5592 fn find_enclosing_node_task(
5593 &mut self,
5594 cx: &mut ViewContext<Self>,
5595 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5596 let snapshot = self.buffer.read(cx).snapshot(cx);
5597 let offset = self.selections.newest::<usize>(cx).head();
5598 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5599 let buffer_id = excerpt.buffer().remote_id();
5600
5601 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5602 let mut cursor = layer.node().walk();
5603
5604 while cursor.goto_first_child_for_byte(offset).is_some() {
5605 if cursor.node().end_byte() == offset {
5606 cursor.goto_next_sibling();
5607 }
5608 }
5609
5610 // Ascend to the smallest ancestor that contains the range and has a task.
5611 loop {
5612 let node = cursor.node();
5613 let node_range = node.byte_range();
5614 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5615
5616 // Check if this node contains our offset
5617 if node_range.start <= offset && node_range.end >= offset {
5618 // If it contains offset, check for task
5619 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5620 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5621 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5622 }
5623 }
5624
5625 if !cursor.goto_parent() {
5626 break;
5627 }
5628 }
5629 None
5630 }
5631
5632 fn render_run_indicator(
5633 &self,
5634 _style: &EditorStyle,
5635 is_active: bool,
5636 row: DisplayRow,
5637 cx: &mut ViewContext<Self>,
5638 ) -> IconButton {
5639 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5640 .shape(ui::IconButtonShape::Square)
5641 .icon_size(IconSize::XSmall)
5642 .icon_color(Color::Muted)
5643 .selected(is_active)
5644 .on_click(cx.listener(move |editor, _e, cx| {
5645 editor.focus(cx);
5646 editor.toggle_code_actions(
5647 &ToggleCodeActions {
5648 deployed_from_indicator: Some(row),
5649 },
5650 cx,
5651 );
5652 }))
5653 }
5654
5655 pub fn context_menu_visible(&self) -> bool {
5656 self.context_menu
5657 .read()
5658 .as_ref()
5659 .map_or(false, |menu| menu.visible())
5660 }
5661
5662 fn render_context_menu(
5663 &self,
5664 cursor_position: DisplayPoint,
5665 style: &EditorStyle,
5666 max_height: Pixels,
5667 cx: &mut ViewContext<Editor>,
5668 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5669 self.context_menu.read().as_ref().map(|menu| {
5670 menu.render(
5671 cursor_position,
5672 style,
5673 max_height,
5674 self.workspace.as_ref().map(|(w, _)| w.clone()),
5675 cx,
5676 )
5677 })
5678 }
5679
5680 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5681 cx.notify();
5682 self.completion_tasks.clear();
5683 let context_menu = self.context_menu.write().take();
5684 if context_menu.is_some() {
5685 self.update_visible_inline_completion(cx);
5686 }
5687 context_menu
5688 }
5689
5690 pub fn insert_snippet(
5691 &mut self,
5692 insertion_ranges: &[Range<usize>],
5693 snippet: Snippet,
5694 cx: &mut ViewContext<Self>,
5695 ) -> Result<()> {
5696 struct Tabstop<T> {
5697 is_end_tabstop: bool,
5698 ranges: Vec<Range<T>>,
5699 }
5700
5701 let tabstops = self.buffer.update(cx, |buffer, cx| {
5702 let snippet_text: Arc<str> = snippet.text.clone().into();
5703 buffer.edit(
5704 insertion_ranges
5705 .iter()
5706 .cloned()
5707 .map(|range| (range, snippet_text.clone())),
5708 Some(AutoindentMode::EachLine),
5709 cx,
5710 );
5711
5712 let snapshot = &*buffer.read(cx);
5713 let snippet = &snippet;
5714 snippet
5715 .tabstops
5716 .iter()
5717 .map(|tabstop| {
5718 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5719 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5720 });
5721 let mut tabstop_ranges = tabstop
5722 .iter()
5723 .flat_map(|tabstop_range| {
5724 let mut delta = 0_isize;
5725 insertion_ranges.iter().map(move |insertion_range| {
5726 let insertion_start = insertion_range.start as isize + delta;
5727 delta +=
5728 snippet.text.len() as isize - insertion_range.len() as isize;
5729
5730 let start = ((insertion_start + tabstop_range.start) as usize)
5731 .min(snapshot.len());
5732 let end = ((insertion_start + tabstop_range.end) as usize)
5733 .min(snapshot.len());
5734 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5735 })
5736 })
5737 .collect::<Vec<_>>();
5738 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5739
5740 Tabstop {
5741 is_end_tabstop,
5742 ranges: tabstop_ranges,
5743 }
5744 })
5745 .collect::<Vec<_>>()
5746 });
5747 if let Some(tabstop) = tabstops.first() {
5748 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5749 s.select_ranges(tabstop.ranges.iter().cloned());
5750 });
5751
5752 // If we're already at the last tabstop and it's at the end of the snippet,
5753 // we're done, we don't need to keep the state around.
5754 if !tabstop.is_end_tabstop {
5755 let ranges = tabstops
5756 .into_iter()
5757 .map(|tabstop| tabstop.ranges)
5758 .collect::<Vec<_>>();
5759 self.snippet_stack.push(SnippetState {
5760 active_index: 0,
5761 ranges,
5762 });
5763 }
5764
5765 // Check whether the just-entered snippet ends with an auto-closable bracket.
5766 if self.autoclose_regions.is_empty() {
5767 let snapshot = self.buffer.read(cx).snapshot(cx);
5768 for selection in &mut self.selections.all::<Point>(cx) {
5769 let selection_head = selection.head();
5770 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5771 continue;
5772 };
5773
5774 let mut bracket_pair = None;
5775 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5776 let prev_chars = snapshot
5777 .reversed_chars_at(selection_head)
5778 .collect::<String>();
5779 for (pair, enabled) in scope.brackets() {
5780 if enabled
5781 && pair.close
5782 && prev_chars.starts_with(pair.start.as_str())
5783 && next_chars.starts_with(pair.end.as_str())
5784 {
5785 bracket_pair = Some(pair.clone());
5786 break;
5787 }
5788 }
5789 if let Some(pair) = bracket_pair {
5790 let start = snapshot.anchor_after(selection_head);
5791 let end = snapshot.anchor_after(selection_head);
5792 self.autoclose_regions.push(AutocloseRegion {
5793 selection_id: selection.id,
5794 range: start..end,
5795 pair,
5796 });
5797 }
5798 }
5799 }
5800 }
5801 Ok(())
5802 }
5803
5804 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5805 self.move_to_snippet_tabstop(Bias::Right, cx)
5806 }
5807
5808 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5809 self.move_to_snippet_tabstop(Bias::Left, cx)
5810 }
5811
5812 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5813 if let Some(mut snippet) = self.snippet_stack.pop() {
5814 match bias {
5815 Bias::Left => {
5816 if snippet.active_index > 0 {
5817 snippet.active_index -= 1;
5818 } else {
5819 self.snippet_stack.push(snippet);
5820 return false;
5821 }
5822 }
5823 Bias::Right => {
5824 if snippet.active_index + 1 < snippet.ranges.len() {
5825 snippet.active_index += 1;
5826 } else {
5827 self.snippet_stack.push(snippet);
5828 return false;
5829 }
5830 }
5831 }
5832 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5833 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5834 s.select_anchor_ranges(current_ranges.iter().cloned())
5835 });
5836 // If snippet state is not at the last tabstop, push it back on the stack
5837 if snippet.active_index + 1 < snippet.ranges.len() {
5838 self.snippet_stack.push(snippet);
5839 }
5840 return true;
5841 }
5842 }
5843
5844 false
5845 }
5846
5847 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5848 self.transact(cx, |this, cx| {
5849 this.select_all(&SelectAll, cx);
5850 this.insert("", cx);
5851 });
5852 }
5853
5854 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5855 self.transact(cx, |this, cx| {
5856 this.select_autoclose_pair(cx);
5857 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5858 if !this.linked_edit_ranges.is_empty() {
5859 let selections = this.selections.all::<MultiBufferPoint>(cx);
5860 let snapshot = this.buffer.read(cx).snapshot(cx);
5861
5862 for selection in selections.iter() {
5863 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5864 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5865 if selection_start.buffer_id != selection_end.buffer_id {
5866 continue;
5867 }
5868 if let Some(ranges) =
5869 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5870 {
5871 for (buffer, entries) in ranges {
5872 linked_ranges.entry(buffer).or_default().extend(entries);
5873 }
5874 }
5875 }
5876 }
5877
5878 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5879 if !this.selections.line_mode {
5880 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5881 for selection in &mut selections {
5882 if selection.is_empty() {
5883 let old_head = selection.head();
5884 let mut new_head =
5885 movement::left(&display_map, old_head.to_display_point(&display_map))
5886 .to_point(&display_map);
5887 if let Some((buffer, line_buffer_range)) = display_map
5888 .buffer_snapshot
5889 .buffer_line_for_row(MultiBufferRow(old_head.row))
5890 {
5891 let indent_size =
5892 buffer.indent_size_for_line(line_buffer_range.start.row);
5893 let indent_len = match indent_size.kind {
5894 IndentKind::Space => {
5895 buffer.settings_at(line_buffer_range.start, cx).tab_size
5896 }
5897 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5898 };
5899 if old_head.column <= indent_size.len && old_head.column > 0 {
5900 let indent_len = indent_len.get();
5901 new_head = cmp::min(
5902 new_head,
5903 MultiBufferPoint::new(
5904 old_head.row,
5905 ((old_head.column - 1) / indent_len) * indent_len,
5906 ),
5907 );
5908 }
5909 }
5910
5911 selection.set_head(new_head, SelectionGoal::None);
5912 }
5913 }
5914 }
5915
5916 this.signature_help_state.set_backspace_pressed(true);
5917 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5918 this.insert("", cx);
5919 let empty_str: Arc<str> = Arc::from("");
5920 for (buffer, edits) in linked_ranges {
5921 let snapshot = buffer.read(cx).snapshot();
5922 use text::ToPoint as TP;
5923
5924 let edits = edits
5925 .into_iter()
5926 .map(|range| {
5927 let end_point = TP::to_point(&range.end, &snapshot);
5928 let mut start_point = TP::to_point(&range.start, &snapshot);
5929
5930 if end_point == start_point {
5931 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5932 .saturating_sub(1);
5933 start_point = TP::to_point(&offset, &snapshot);
5934 };
5935
5936 (start_point..end_point, empty_str.clone())
5937 })
5938 .sorted_by_key(|(range, _)| range.start)
5939 .collect::<Vec<_>>();
5940 buffer.update(cx, |this, cx| {
5941 this.edit(edits, None, cx);
5942 })
5943 }
5944 this.refresh_inline_completion(true, false, cx);
5945 linked_editing_ranges::refresh_linked_ranges(this, cx);
5946 });
5947 }
5948
5949 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5950 self.transact(cx, |this, cx| {
5951 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5952 let line_mode = s.line_mode;
5953 s.move_with(|map, selection| {
5954 if selection.is_empty() && !line_mode {
5955 let cursor = movement::right(map, selection.head());
5956 selection.end = cursor;
5957 selection.reversed = true;
5958 selection.goal = SelectionGoal::None;
5959 }
5960 })
5961 });
5962 this.insert("", cx);
5963 this.refresh_inline_completion(true, false, cx);
5964 });
5965 }
5966
5967 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5968 if self.move_to_prev_snippet_tabstop(cx) {
5969 return;
5970 }
5971
5972 self.outdent(&Outdent, cx);
5973 }
5974
5975 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5976 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5977 return;
5978 }
5979
5980 let mut selections = self.selections.all_adjusted(cx);
5981 let buffer = self.buffer.read(cx);
5982 let snapshot = buffer.snapshot(cx);
5983 let rows_iter = selections.iter().map(|s| s.head().row);
5984 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5985
5986 let mut edits = Vec::new();
5987 let mut prev_edited_row = 0;
5988 let mut row_delta = 0;
5989 for selection in &mut selections {
5990 if selection.start.row != prev_edited_row {
5991 row_delta = 0;
5992 }
5993 prev_edited_row = selection.end.row;
5994
5995 // If the selection is non-empty, then increase the indentation of the selected lines.
5996 if !selection.is_empty() {
5997 row_delta =
5998 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5999 continue;
6000 }
6001
6002 // If the selection is empty and the cursor is in the leading whitespace before the
6003 // suggested indentation, then auto-indent the line.
6004 let cursor = selection.head();
6005 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6006 if let Some(suggested_indent) =
6007 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6008 {
6009 if cursor.column < suggested_indent.len
6010 && cursor.column <= current_indent.len
6011 && current_indent.len <= suggested_indent.len
6012 {
6013 selection.start = Point::new(cursor.row, suggested_indent.len);
6014 selection.end = selection.start;
6015 if row_delta == 0 {
6016 edits.extend(Buffer::edit_for_indent_size_adjustment(
6017 cursor.row,
6018 current_indent,
6019 suggested_indent,
6020 ));
6021 row_delta = suggested_indent.len - current_indent.len;
6022 }
6023 continue;
6024 }
6025 }
6026
6027 // Otherwise, insert a hard or soft tab.
6028 let settings = buffer.settings_at(cursor, cx);
6029 let tab_size = if settings.hard_tabs {
6030 IndentSize::tab()
6031 } else {
6032 let tab_size = settings.tab_size.get();
6033 let char_column = snapshot
6034 .text_for_range(Point::new(cursor.row, 0)..cursor)
6035 .flat_map(str::chars)
6036 .count()
6037 + row_delta as usize;
6038 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6039 IndentSize::spaces(chars_to_next_tab_stop)
6040 };
6041 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6042 selection.end = selection.start;
6043 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6044 row_delta += tab_size.len;
6045 }
6046
6047 self.transact(cx, |this, cx| {
6048 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6049 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6050 this.refresh_inline_completion(true, false, cx);
6051 });
6052 }
6053
6054 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6055 if self.read_only(cx) {
6056 return;
6057 }
6058 let mut selections = self.selections.all::<Point>(cx);
6059 let mut prev_edited_row = 0;
6060 let mut row_delta = 0;
6061 let mut edits = Vec::new();
6062 let buffer = self.buffer.read(cx);
6063 let snapshot = buffer.snapshot(cx);
6064 for selection in &mut selections {
6065 if selection.start.row != prev_edited_row {
6066 row_delta = 0;
6067 }
6068 prev_edited_row = selection.end.row;
6069
6070 row_delta =
6071 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6072 }
6073
6074 self.transact(cx, |this, cx| {
6075 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6076 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6077 });
6078 }
6079
6080 fn indent_selection(
6081 buffer: &MultiBuffer,
6082 snapshot: &MultiBufferSnapshot,
6083 selection: &mut Selection<Point>,
6084 edits: &mut Vec<(Range<Point>, String)>,
6085 delta_for_start_row: u32,
6086 cx: &AppContext,
6087 ) -> u32 {
6088 let settings = buffer.settings_at(selection.start, cx);
6089 let tab_size = settings.tab_size.get();
6090 let indent_kind = if settings.hard_tabs {
6091 IndentKind::Tab
6092 } else {
6093 IndentKind::Space
6094 };
6095 let mut start_row = selection.start.row;
6096 let mut end_row = selection.end.row + 1;
6097
6098 // If a selection ends at the beginning of a line, don't indent
6099 // that last line.
6100 if selection.end.column == 0 && selection.end.row > selection.start.row {
6101 end_row -= 1;
6102 }
6103
6104 // Avoid re-indenting a row that has already been indented by a
6105 // previous selection, but still update this selection's column
6106 // to reflect that indentation.
6107 if delta_for_start_row > 0 {
6108 start_row += 1;
6109 selection.start.column += delta_for_start_row;
6110 if selection.end.row == selection.start.row {
6111 selection.end.column += delta_for_start_row;
6112 }
6113 }
6114
6115 let mut delta_for_end_row = 0;
6116 let has_multiple_rows = start_row + 1 != end_row;
6117 for row in start_row..end_row {
6118 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6119 let indent_delta = match (current_indent.kind, indent_kind) {
6120 (IndentKind::Space, IndentKind::Space) => {
6121 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6122 IndentSize::spaces(columns_to_next_tab_stop)
6123 }
6124 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6125 (_, IndentKind::Tab) => IndentSize::tab(),
6126 };
6127
6128 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6129 0
6130 } else {
6131 selection.start.column
6132 };
6133 let row_start = Point::new(row, start);
6134 edits.push((
6135 row_start..row_start,
6136 indent_delta.chars().collect::<String>(),
6137 ));
6138
6139 // Update this selection's endpoints to reflect the indentation.
6140 if row == selection.start.row {
6141 selection.start.column += indent_delta.len;
6142 }
6143 if row == selection.end.row {
6144 selection.end.column += indent_delta.len;
6145 delta_for_end_row = indent_delta.len;
6146 }
6147 }
6148
6149 if selection.start.row == selection.end.row {
6150 delta_for_start_row + delta_for_end_row
6151 } else {
6152 delta_for_end_row
6153 }
6154 }
6155
6156 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6157 if self.read_only(cx) {
6158 return;
6159 }
6160 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6161 let selections = self.selections.all::<Point>(cx);
6162 let mut deletion_ranges = Vec::new();
6163 let mut last_outdent = None;
6164 {
6165 let buffer = self.buffer.read(cx);
6166 let snapshot = buffer.snapshot(cx);
6167 for selection in &selections {
6168 let settings = buffer.settings_at(selection.start, cx);
6169 let tab_size = settings.tab_size.get();
6170 let mut rows = selection.spanned_rows(false, &display_map);
6171
6172 // Avoid re-outdenting a row that has already been outdented by a
6173 // previous selection.
6174 if let Some(last_row) = last_outdent {
6175 if last_row == rows.start {
6176 rows.start = rows.start.next_row();
6177 }
6178 }
6179 let has_multiple_rows = rows.len() > 1;
6180 for row in rows.iter_rows() {
6181 let indent_size = snapshot.indent_size_for_line(row);
6182 if indent_size.len > 0 {
6183 let deletion_len = match indent_size.kind {
6184 IndentKind::Space => {
6185 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6186 if columns_to_prev_tab_stop == 0 {
6187 tab_size
6188 } else {
6189 columns_to_prev_tab_stop
6190 }
6191 }
6192 IndentKind::Tab => 1,
6193 };
6194 let start = if has_multiple_rows
6195 || deletion_len > selection.start.column
6196 || indent_size.len < selection.start.column
6197 {
6198 0
6199 } else {
6200 selection.start.column - deletion_len
6201 };
6202 deletion_ranges.push(
6203 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6204 );
6205 last_outdent = Some(row);
6206 }
6207 }
6208 }
6209 }
6210
6211 self.transact(cx, |this, cx| {
6212 this.buffer.update(cx, |buffer, cx| {
6213 let empty_str: Arc<str> = Arc::default();
6214 buffer.edit(
6215 deletion_ranges
6216 .into_iter()
6217 .map(|range| (range, empty_str.clone())),
6218 None,
6219 cx,
6220 );
6221 });
6222 let selections = this.selections.all::<usize>(cx);
6223 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6224 });
6225 }
6226
6227 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6228 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6229 let selections = self.selections.all::<Point>(cx);
6230
6231 let mut new_cursors = Vec::new();
6232 let mut edit_ranges = Vec::new();
6233 let mut selections = selections.iter().peekable();
6234 while let Some(selection) = selections.next() {
6235 let mut rows = selection.spanned_rows(false, &display_map);
6236 let goal_display_column = selection.head().to_display_point(&display_map).column();
6237
6238 // Accumulate contiguous regions of rows that we want to delete.
6239 while let Some(next_selection) = selections.peek() {
6240 let next_rows = next_selection.spanned_rows(false, &display_map);
6241 if next_rows.start <= rows.end {
6242 rows.end = next_rows.end;
6243 selections.next().unwrap();
6244 } else {
6245 break;
6246 }
6247 }
6248
6249 let buffer = &display_map.buffer_snapshot;
6250 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6251 let edit_end;
6252 let cursor_buffer_row;
6253 if buffer.max_point().row >= rows.end.0 {
6254 // If there's a line after the range, delete the \n from the end of the row range
6255 // and position the cursor on the next line.
6256 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6257 cursor_buffer_row = rows.end;
6258 } else {
6259 // If there isn't a line after the range, delete the \n from the line before the
6260 // start of the row range and position the cursor there.
6261 edit_start = edit_start.saturating_sub(1);
6262 edit_end = buffer.len();
6263 cursor_buffer_row = rows.start.previous_row();
6264 }
6265
6266 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6267 *cursor.column_mut() =
6268 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6269
6270 new_cursors.push((
6271 selection.id,
6272 buffer.anchor_after(cursor.to_point(&display_map)),
6273 ));
6274 edit_ranges.push(edit_start..edit_end);
6275 }
6276
6277 self.transact(cx, |this, cx| {
6278 let buffer = this.buffer.update(cx, |buffer, cx| {
6279 let empty_str: Arc<str> = Arc::default();
6280 buffer.edit(
6281 edit_ranges
6282 .into_iter()
6283 .map(|range| (range, empty_str.clone())),
6284 None,
6285 cx,
6286 );
6287 buffer.snapshot(cx)
6288 });
6289 let new_selections = new_cursors
6290 .into_iter()
6291 .map(|(id, cursor)| {
6292 let cursor = cursor.to_point(&buffer);
6293 Selection {
6294 id,
6295 start: cursor,
6296 end: cursor,
6297 reversed: false,
6298 goal: SelectionGoal::None,
6299 }
6300 })
6301 .collect();
6302
6303 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6304 s.select(new_selections);
6305 });
6306 });
6307 }
6308
6309 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6310 if self.read_only(cx) {
6311 return;
6312 }
6313 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6314 for selection in self.selections.all::<Point>(cx) {
6315 let start = MultiBufferRow(selection.start.row);
6316 let end = if selection.start.row == selection.end.row {
6317 MultiBufferRow(selection.start.row + 1)
6318 } else {
6319 MultiBufferRow(selection.end.row)
6320 };
6321
6322 if let Some(last_row_range) = row_ranges.last_mut() {
6323 if start <= last_row_range.end {
6324 last_row_range.end = end;
6325 continue;
6326 }
6327 }
6328 row_ranges.push(start..end);
6329 }
6330
6331 let snapshot = self.buffer.read(cx).snapshot(cx);
6332 let mut cursor_positions = Vec::new();
6333 for row_range in &row_ranges {
6334 let anchor = snapshot.anchor_before(Point::new(
6335 row_range.end.previous_row().0,
6336 snapshot.line_len(row_range.end.previous_row()),
6337 ));
6338 cursor_positions.push(anchor..anchor);
6339 }
6340
6341 self.transact(cx, |this, cx| {
6342 for row_range in row_ranges.into_iter().rev() {
6343 for row in row_range.iter_rows().rev() {
6344 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6345 let next_line_row = row.next_row();
6346 let indent = snapshot.indent_size_for_line(next_line_row);
6347 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6348
6349 let replace = if snapshot.line_len(next_line_row) > indent.len {
6350 " "
6351 } else {
6352 ""
6353 };
6354
6355 this.buffer.update(cx, |buffer, cx| {
6356 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6357 });
6358 }
6359 }
6360
6361 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6362 s.select_anchor_ranges(cursor_positions)
6363 });
6364 });
6365 }
6366
6367 pub fn sort_lines_case_sensitive(
6368 &mut self,
6369 _: &SortLinesCaseSensitive,
6370 cx: &mut ViewContext<Self>,
6371 ) {
6372 self.manipulate_lines(cx, |lines| lines.sort())
6373 }
6374
6375 pub fn sort_lines_case_insensitive(
6376 &mut self,
6377 _: &SortLinesCaseInsensitive,
6378 cx: &mut ViewContext<Self>,
6379 ) {
6380 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6381 }
6382
6383 pub fn unique_lines_case_insensitive(
6384 &mut self,
6385 _: &UniqueLinesCaseInsensitive,
6386 cx: &mut ViewContext<Self>,
6387 ) {
6388 self.manipulate_lines(cx, |lines| {
6389 let mut seen = HashSet::default();
6390 lines.retain(|line| seen.insert(line.to_lowercase()));
6391 })
6392 }
6393
6394 pub fn unique_lines_case_sensitive(
6395 &mut self,
6396 _: &UniqueLinesCaseSensitive,
6397 cx: &mut ViewContext<Self>,
6398 ) {
6399 self.manipulate_lines(cx, |lines| {
6400 let mut seen = HashSet::default();
6401 lines.retain(|line| seen.insert(*line));
6402 })
6403 }
6404
6405 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6406 let mut revert_changes = HashMap::default();
6407 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6408 for hunk in hunks_for_rows(
6409 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6410 &multi_buffer_snapshot,
6411 ) {
6412 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6413 }
6414 if !revert_changes.is_empty() {
6415 self.transact(cx, |editor, cx| {
6416 editor.revert(revert_changes, cx);
6417 });
6418 }
6419 }
6420
6421 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6422 let Some(project) = self.project.clone() else {
6423 return;
6424 };
6425 self.reload(project, cx).detach_and_notify_err(cx);
6426 }
6427
6428 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6429 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6430 if !revert_changes.is_empty() {
6431 self.transact(cx, |editor, cx| {
6432 editor.revert(revert_changes, cx);
6433 });
6434 }
6435 }
6436
6437 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6438 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6439 let project_path = buffer.read(cx).project_path(cx)?;
6440 let project = self.project.as_ref()?.read(cx);
6441 let entry = project.entry_for_path(&project_path, cx)?;
6442 let parent = match &entry.canonical_path {
6443 Some(canonical_path) => canonical_path.to_path_buf(),
6444 None => project.absolute_path(&project_path, cx)?,
6445 }
6446 .parent()?
6447 .to_path_buf();
6448 Some(parent)
6449 }) {
6450 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6451 }
6452 }
6453
6454 fn gather_revert_changes(
6455 &mut self,
6456 selections: &[Selection<Anchor>],
6457 cx: &mut ViewContext<'_, Editor>,
6458 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6459 let mut revert_changes = HashMap::default();
6460 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6461 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6462 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6463 }
6464 revert_changes
6465 }
6466
6467 pub fn prepare_revert_change(
6468 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6469 multi_buffer: &Model<MultiBuffer>,
6470 hunk: &MultiBufferDiffHunk,
6471 cx: &AppContext,
6472 ) -> Option<()> {
6473 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6474 let buffer = buffer.read(cx);
6475 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6476 let buffer_snapshot = buffer.snapshot();
6477 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6478 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6479 probe
6480 .0
6481 .start
6482 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6483 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6484 }) {
6485 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6486 Some(())
6487 } else {
6488 None
6489 }
6490 }
6491
6492 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6493 self.manipulate_lines(cx, |lines| lines.reverse())
6494 }
6495
6496 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6497 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6498 }
6499
6500 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6501 where
6502 Fn: FnMut(&mut Vec<&str>),
6503 {
6504 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6505 let buffer = self.buffer.read(cx).snapshot(cx);
6506
6507 let mut edits = Vec::new();
6508
6509 let selections = self.selections.all::<Point>(cx);
6510 let mut selections = selections.iter().peekable();
6511 let mut contiguous_row_selections = Vec::new();
6512 let mut new_selections = Vec::new();
6513 let mut added_lines = 0;
6514 let mut removed_lines = 0;
6515
6516 while let Some(selection) = selections.next() {
6517 let (start_row, end_row) = consume_contiguous_rows(
6518 &mut contiguous_row_selections,
6519 selection,
6520 &display_map,
6521 &mut selections,
6522 );
6523
6524 let start_point = Point::new(start_row.0, 0);
6525 let end_point = Point::new(
6526 end_row.previous_row().0,
6527 buffer.line_len(end_row.previous_row()),
6528 );
6529 let text = buffer
6530 .text_for_range(start_point..end_point)
6531 .collect::<String>();
6532
6533 let mut lines = text.split('\n').collect_vec();
6534
6535 let lines_before = lines.len();
6536 callback(&mut lines);
6537 let lines_after = lines.len();
6538
6539 edits.push((start_point..end_point, lines.join("\n")));
6540
6541 // Selections must change based on added and removed line count
6542 let start_row =
6543 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6544 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6545 new_selections.push(Selection {
6546 id: selection.id,
6547 start: start_row,
6548 end: end_row,
6549 goal: SelectionGoal::None,
6550 reversed: selection.reversed,
6551 });
6552
6553 if lines_after > lines_before {
6554 added_lines += lines_after - lines_before;
6555 } else if lines_before > lines_after {
6556 removed_lines += lines_before - lines_after;
6557 }
6558 }
6559
6560 self.transact(cx, |this, cx| {
6561 let buffer = this.buffer.update(cx, |buffer, cx| {
6562 buffer.edit(edits, None, cx);
6563 buffer.snapshot(cx)
6564 });
6565
6566 // Recalculate offsets on newly edited buffer
6567 let new_selections = new_selections
6568 .iter()
6569 .map(|s| {
6570 let start_point = Point::new(s.start.0, 0);
6571 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6572 Selection {
6573 id: s.id,
6574 start: buffer.point_to_offset(start_point),
6575 end: buffer.point_to_offset(end_point),
6576 goal: s.goal,
6577 reversed: s.reversed,
6578 }
6579 })
6580 .collect();
6581
6582 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6583 s.select(new_selections);
6584 });
6585
6586 this.request_autoscroll(Autoscroll::fit(), cx);
6587 });
6588 }
6589
6590 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6591 self.manipulate_text(cx, |text| text.to_uppercase())
6592 }
6593
6594 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6595 self.manipulate_text(cx, |text| text.to_lowercase())
6596 }
6597
6598 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6599 self.manipulate_text(cx, |text| {
6600 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6601 // https://github.com/rutrum/convert-case/issues/16
6602 text.split('\n')
6603 .map(|line| line.to_case(Case::Title))
6604 .join("\n")
6605 })
6606 }
6607
6608 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6609 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6610 }
6611
6612 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6613 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6614 }
6615
6616 pub fn convert_to_upper_camel_case(
6617 &mut self,
6618 _: &ConvertToUpperCamelCase,
6619 cx: &mut ViewContext<Self>,
6620 ) {
6621 self.manipulate_text(cx, |text| {
6622 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6623 // https://github.com/rutrum/convert-case/issues/16
6624 text.split('\n')
6625 .map(|line| line.to_case(Case::UpperCamel))
6626 .join("\n")
6627 })
6628 }
6629
6630 pub fn convert_to_lower_camel_case(
6631 &mut self,
6632 _: &ConvertToLowerCamelCase,
6633 cx: &mut ViewContext<Self>,
6634 ) {
6635 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6636 }
6637
6638 pub fn convert_to_opposite_case(
6639 &mut self,
6640 _: &ConvertToOppositeCase,
6641 cx: &mut ViewContext<Self>,
6642 ) {
6643 self.manipulate_text(cx, |text| {
6644 text.chars()
6645 .fold(String::with_capacity(text.len()), |mut t, c| {
6646 if c.is_uppercase() {
6647 t.extend(c.to_lowercase());
6648 } else {
6649 t.extend(c.to_uppercase());
6650 }
6651 t
6652 })
6653 })
6654 }
6655
6656 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6657 where
6658 Fn: FnMut(&str) -> String,
6659 {
6660 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6661 let buffer = self.buffer.read(cx).snapshot(cx);
6662
6663 let mut new_selections = Vec::new();
6664 let mut edits = Vec::new();
6665 let mut selection_adjustment = 0i32;
6666
6667 for selection in self.selections.all::<usize>(cx) {
6668 let selection_is_empty = selection.is_empty();
6669
6670 let (start, end) = if selection_is_empty {
6671 let word_range = movement::surrounding_word(
6672 &display_map,
6673 selection.start.to_display_point(&display_map),
6674 );
6675 let start = word_range.start.to_offset(&display_map, Bias::Left);
6676 let end = word_range.end.to_offset(&display_map, Bias::Left);
6677 (start, end)
6678 } else {
6679 (selection.start, selection.end)
6680 };
6681
6682 let text = buffer.text_for_range(start..end).collect::<String>();
6683 let old_length = text.len() as i32;
6684 let text = callback(&text);
6685
6686 new_selections.push(Selection {
6687 start: (start as i32 - selection_adjustment) as usize,
6688 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6689 goal: SelectionGoal::None,
6690 ..selection
6691 });
6692
6693 selection_adjustment += old_length - text.len() as i32;
6694
6695 edits.push((start..end, text));
6696 }
6697
6698 self.transact(cx, |this, cx| {
6699 this.buffer.update(cx, |buffer, cx| {
6700 buffer.edit(edits, None, cx);
6701 });
6702
6703 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6704 s.select(new_selections);
6705 });
6706
6707 this.request_autoscroll(Autoscroll::fit(), cx);
6708 });
6709 }
6710
6711 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6712 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6713 let buffer = &display_map.buffer_snapshot;
6714 let selections = self.selections.all::<Point>(cx);
6715
6716 let mut edits = Vec::new();
6717 let mut selections_iter = selections.iter().peekable();
6718 while let Some(selection) = selections_iter.next() {
6719 // Avoid duplicating the same lines twice.
6720 let mut rows = selection.spanned_rows(false, &display_map);
6721
6722 while let Some(next_selection) = selections_iter.peek() {
6723 let next_rows = next_selection.spanned_rows(false, &display_map);
6724 if next_rows.start < rows.end {
6725 rows.end = next_rows.end;
6726 selections_iter.next().unwrap();
6727 } else {
6728 break;
6729 }
6730 }
6731
6732 // Copy the text from the selected row region and splice it either at the start
6733 // or end of the region.
6734 let start = Point::new(rows.start.0, 0);
6735 let end = Point::new(
6736 rows.end.previous_row().0,
6737 buffer.line_len(rows.end.previous_row()),
6738 );
6739 let text = buffer
6740 .text_for_range(start..end)
6741 .chain(Some("\n"))
6742 .collect::<String>();
6743 let insert_location = if upwards {
6744 Point::new(rows.end.0, 0)
6745 } else {
6746 start
6747 };
6748 edits.push((insert_location..insert_location, text));
6749 }
6750
6751 self.transact(cx, |this, cx| {
6752 this.buffer.update(cx, |buffer, cx| {
6753 buffer.edit(edits, None, cx);
6754 });
6755
6756 this.request_autoscroll(Autoscroll::fit(), cx);
6757 });
6758 }
6759
6760 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6761 self.duplicate_line(true, cx);
6762 }
6763
6764 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6765 self.duplicate_line(false, cx);
6766 }
6767
6768 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6769 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6770 let buffer = self.buffer.read(cx).snapshot(cx);
6771
6772 let mut edits = Vec::new();
6773 let mut unfold_ranges = Vec::new();
6774 let mut refold_ranges = Vec::new();
6775
6776 let selections = self.selections.all::<Point>(cx);
6777 let mut selections = selections.iter().peekable();
6778 let mut contiguous_row_selections = Vec::new();
6779 let mut new_selections = Vec::new();
6780
6781 while let Some(selection) = selections.next() {
6782 // Find all the selections that span a contiguous row range
6783 let (start_row, end_row) = consume_contiguous_rows(
6784 &mut contiguous_row_selections,
6785 selection,
6786 &display_map,
6787 &mut selections,
6788 );
6789
6790 // Move the text spanned by the row range to be before the line preceding the row range
6791 if start_row.0 > 0 {
6792 let range_to_move = Point::new(
6793 start_row.previous_row().0,
6794 buffer.line_len(start_row.previous_row()),
6795 )
6796 ..Point::new(
6797 end_row.previous_row().0,
6798 buffer.line_len(end_row.previous_row()),
6799 );
6800 let insertion_point = display_map
6801 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6802 .0;
6803
6804 // Don't move lines across excerpts
6805 if buffer
6806 .excerpt_boundaries_in_range((
6807 Bound::Excluded(insertion_point),
6808 Bound::Included(range_to_move.end),
6809 ))
6810 .next()
6811 .is_none()
6812 {
6813 let text = buffer
6814 .text_for_range(range_to_move.clone())
6815 .flat_map(|s| s.chars())
6816 .skip(1)
6817 .chain(['\n'])
6818 .collect::<String>();
6819
6820 edits.push((
6821 buffer.anchor_after(range_to_move.start)
6822 ..buffer.anchor_before(range_to_move.end),
6823 String::new(),
6824 ));
6825 let insertion_anchor = buffer.anchor_after(insertion_point);
6826 edits.push((insertion_anchor..insertion_anchor, text));
6827
6828 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6829
6830 // Move selections up
6831 new_selections.extend(contiguous_row_selections.drain(..).map(
6832 |mut selection| {
6833 selection.start.row -= row_delta;
6834 selection.end.row -= row_delta;
6835 selection
6836 },
6837 ));
6838
6839 // Move folds up
6840 unfold_ranges.push(range_to_move.clone());
6841 for fold in display_map.folds_in_range(
6842 buffer.anchor_before(range_to_move.start)
6843 ..buffer.anchor_after(range_to_move.end),
6844 ) {
6845 let mut start = fold.range.start.to_point(&buffer);
6846 let mut end = fold.range.end.to_point(&buffer);
6847 start.row -= row_delta;
6848 end.row -= row_delta;
6849 refold_ranges.push((start..end, fold.placeholder.clone()));
6850 }
6851 }
6852 }
6853
6854 // If we didn't move line(s), preserve the existing selections
6855 new_selections.append(&mut contiguous_row_selections);
6856 }
6857
6858 self.transact(cx, |this, cx| {
6859 this.unfold_ranges(&unfold_ranges, true, true, cx);
6860 this.buffer.update(cx, |buffer, cx| {
6861 for (range, text) in edits {
6862 buffer.edit([(range, text)], None, cx);
6863 }
6864 });
6865 this.fold_ranges(refold_ranges, true, cx);
6866 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6867 s.select(new_selections);
6868 })
6869 });
6870 }
6871
6872 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6873 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6874 let buffer = self.buffer.read(cx).snapshot(cx);
6875
6876 let mut edits = Vec::new();
6877 let mut unfold_ranges = Vec::new();
6878 let mut refold_ranges = Vec::new();
6879
6880 let selections = self.selections.all::<Point>(cx);
6881 let mut selections = selections.iter().peekable();
6882 let mut contiguous_row_selections = Vec::new();
6883 let mut new_selections = Vec::new();
6884
6885 while let Some(selection) = selections.next() {
6886 // Find all the selections that span a contiguous row range
6887 let (start_row, end_row) = consume_contiguous_rows(
6888 &mut contiguous_row_selections,
6889 selection,
6890 &display_map,
6891 &mut selections,
6892 );
6893
6894 // Move the text spanned by the row range to be after the last line of the row range
6895 if end_row.0 <= buffer.max_point().row {
6896 let range_to_move =
6897 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6898 let insertion_point = display_map
6899 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6900 .0;
6901
6902 // Don't move lines across excerpt boundaries
6903 if buffer
6904 .excerpt_boundaries_in_range((
6905 Bound::Excluded(range_to_move.start),
6906 Bound::Included(insertion_point),
6907 ))
6908 .next()
6909 .is_none()
6910 {
6911 let mut text = String::from("\n");
6912 text.extend(buffer.text_for_range(range_to_move.clone()));
6913 text.pop(); // Drop trailing newline
6914 edits.push((
6915 buffer.anchor_after(range_to_move.start)
6916 ..buffer.anchor_before(range_to_move.end),
6917 String::new(),
6918 ));
6919 let insertion_anchor = buffer.anchor_after(insertion_point);
6920 edits.push((insertion_anchor..insertion_anchor, text));
6921
6922 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6923
6924 // Move selections down
6925 new_selections.extend(contiguous_row_selections.drain(..).map(
6926 |mut selection| {
6927 selection.start.row += row_delta;
6928 selection.end.row += row_delta;
6929 selection
6930 },
6931 ));
6932
6933 // Move folds down
6934 unfold_ranges.push(range_to_move.clone());
6935 for fold in display_map.folds_in_range(
6936 buffer.anchor_before(range_to_move.start)
6937 ..buffer.anchor_after(range_to_move.end),
6938 ) {
6939 let mut start = fold.range.start.to_point(&buffer);
6940 let mut end = fold.range.end.to_point(&buffer);
6941 start.row += row_delta;
6942 end.row += row_delta;
6943 refold_ranges.push((start..end, fold.placeholder.clone()));
6944 }
6945 }
6946 }
6947
6948 // If we didn't move line(s), preserve the existing selections
6949 new_selections.append(&mut contiguous_row_selections);
6950 }
6951
6952 self.transact(cx, |this, cx| {
6953 this.unfold_ranges(&unfold_ranges, true, true, cx);
6954 this.buffer.update(cx, |buffer, cx| {
6955 for (range, text) in edits {
6956 buffer.edit([(range, text)], None, cx);
6957 }
6958 });
6959 this.fold_ranges(refold_ranges, true, cx);
6960 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6961 });
6962 }
6963
6964 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6965 let text_layout_details = &self.text_layout_details(cx);
6966 self.transact(cx, |this, cx| {
6967 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6968 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6969 let line_mode = s.line_mode;
6970 s.move_with(|display_map, selection| {
6971 if !selection.is_empty() || line_mode {
6972 return;
6973 }
6974
6975 let mut head = selection.head();
6976 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6977 if head.column() == display_map.line_len(head.row()) {
6978 transpose_offset = display_map
6979 .buffer_snapshot
6980 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6981 }
6982
6983 if transpose_offset == 0 {
6984 return;
6985 }
6986
6987 *head.column_mut() += 1;
6988 head = display_map.clip_point(head, Bias::Right);
6989 let goal = SelectionGoal::HorizontalPosition(
6990 display_map
6991 .x_for_display_point(head, text_layout_details)
6992 .into(),
6993 );
6994 selection.collapse_to(head, goal);
6995
6996 let transpose_start = display_map
6997 .buffer_snapshot
6998 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6999 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7000 let transpose_end = display_map
7001 .buffer_snapshot
7002 .clip_offset(transpose_offset + 1, Bias::Right);
7003 if let Some(ch) =
7004 display_map.buffer_snapshot.chars_at(transpose_start).next()
7005 {
7006 edits.push((transpose_start..transpose_offset, String::new()));
7007 edits.push((transpose_end..transpose_end, ch.to_string()));
7008 }
7009 }
7010 });
7011 edits
7012 });
7013 this.buffer
7014 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7015 let selections = this.selections.all::<usize>(cx);
7016 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7017 s.select(selections);
7018 });
7019 });
7020 }
7021
7022 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7023 self.rewrap_impl(true, cx)
7024 }
7025
7026 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
7027 let buffer = self.buffer.read(cx).snapshot(cx);
7028 let selections = self.selections.all::<Point>(cx);
7029 let mut selections = selections.iter().peekable();
7030
7031 let mut edits = Vec::new();
7032 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7033
7034 while let Some(selection) = selections.next() {
7035 let mut start_row = selection.start.row;
7036 let mut end_row = selection.end.row;
7037
7038 // Skip selections that overlap with a range that has already been rewrapped.
7039 let selection_range = start_row..end_row;
7040 if rewrapped_row_ranges
7041 .iter()
7042 .any(|range| range.overlaps(&selection_range))
7043 {
7044 continue;
7045 }
7046
7047 let mut should_rewrap = !only_text;
7048
7049 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7050 match language_scope.language_name().0.as_ref() {
7051 "Markdown" | "Plain Text" => {
7052 should_rewrap = true;
7053 }
7054 _ => {}
7055 }
7056 }
7057
7058 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7059
7060 // Since not all lines in the selection may be at the same indent
7061 // level, choose the indent size that is the most common between all
7062 // of the lines.
7063 //
7064 // If there is a tie, we use the deepest indent.
7065 let (indent_size, indent_end) = {
7066 let mut indent_size_occurrences = HashMap::default();
7067 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7068
7069 for row in start_row..=end_row {
7070 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7071 rows_by_indent_size.entry(indent).or_default().push(row);
7072 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7073 }
7074
7075 let indent_size = indent_size_occurrences
7076 .into_iter()
7077 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7078 .map(|(indent, _)| indent)
7079 .unwrap_or_default();
7080 let row = rows_by_indent_size[&indent_size][0];
7081 let indent_end = Point::new(row, indent_size.len);
7082
7083 (indent_size, indent_end)
7084 };
7085
7086 let mut line_prefix = indent_size.chars().collect::<String>();
7087
7088 if let Some(comment_prefix) =
7089 buffer
7090 .language_scope_at(selection.head())
7091 .and_then(|language| {
7092 language
7093 .line_comment_prefixes()
7094 .iter()
7095 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7096 .cloned()
7097 })
7098 {
7099 line_prefix.push_str(&comment_prefix);
7100 should_rewrap = true;
7101 }
7102
7103 if !should_rewrap {
7104 continue;
7105 }
7106
7107 if selection.is_empty() {
7108 'expand_upwards: while start_row > 0 {
7109 let prev_row = start_row - 1;
7110 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7111 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7112 {
7113 start_row = prev_row;
7114 } else {
7115 break 'expand_upwards;
7116 }
7117 }
7118
7119 'expand_downwards: while end_row < buffer.max_point().row {
7120 let next_row = end_row + 1;
7121 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7122 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7123 {
7124 end_row = next_row;
7125 } else {
7126 break 'expand_downwards;
7127 }
7128 }
7129 }
7130
7131 let start = Point::new(start_row, 0);
7132 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7133 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7134 let Some(lines_without_prefixes) = selection_text
7135 .lines()
7136 .map(|line| {
7137 line.strip_prefix(&line_prefix)
7138 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7139 .ok_or_else(|| {
7140 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7141 })
7142 })
7143 .collect::<Result<Vec<_>, _>>()
7144 .log_err()
7145 else {
7146 continue;
7147 };
7148
7149 let wrap_column = buffer
7150 .settings_at(Point::new(start_row, 0), cx)
7151 .preferred_line_length as usize;
7152 let wrapped_text = wrap_with_prefix(
7153 line_prefix,
7154 lines_without_prefixes.join(" "),
7155 wrap_column,
7156 tab_size,
7157 );
7158
7159 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7160 let mut offset = start.to_offset(&buffer);
7161 let mut moved_since_edit = true;
7162
7163 for change in diff.iter_all_changes() {
7164 let value = change.value();
7165 match change.tag() {
7166 ChangeTag::Equal => {
7167 offset += value.len();
7168 moved_since_edit = true;
7169 }
7170 ChangeTag::Delete => {
7171 let start = buffer.anchor_after(offset);
7172 let end = buffer.anchor_before(offset + value.len());
7173
7174 if moved_since_edit {
7175 edits.push((start..end, String::new()));
7176 } else {
7177 edits.last_mut().unwrap().0.end = end;
7178 }
7179
7180 offset += value.len();
7181 moved_since_edit = false;
7182 }
7183 ChangeTag::Insert => {
7184 if moved_since_edit {
7185 let anchor = buffer.anchor_after(offset);
7186 edits.push((anchor..anchor, value.to_string()));
7187 } else {
7188 edits.last_mut().unwrap().1.push_str(value);
7189 }
7190
7191 moved_since_edit = false;
7192 }
7193 }
7194 }
7195
7196 rewrapped_row_ranges.push(start_row..=end_row);
7197 }
7198
7199 self.buffer
7200 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7201 }
7202
7203 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7204 let mut text = String::new();
7205 let buffer = self.buffer.read(cx).snapshot(cx);
7206 let mut selections = self.selections.all::<Point>(cx);
7207 let mut clipboard_selections = Vec::with_capacity(selections.len());
7208 {
7209 let max_point = buffer.max_point();
7210 let mut is_first = true;
7211 for selection in &mut selections {
7212 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7213 if is_entire_line {
7214 selection.start = Point::new(selection.start.row, 0);
7215 if !selection.is_empty() && selection.end.column == 0 {
7216 selection.end = cmp::min(max_point, selection.end);
7217 } else {
7218 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7219 }
7220 selection.goal = SelectionGoal::None;
7221 }
7222 if is_first {
7223 is_first = false;
7224 } else {
7225 text += "\n";
7226 }
7227 let mut len = 0;
7228 for chunk in buffer.text_for_range(selection.start..selection.end) {
7229 text.push_str(chunk);
7230 len += chunk.len();
7231 }
7232 clipboard_selections.push(ClipboardSelection {
7233 len,
7234 is_entire_line,
7235 first_line_indent: buffer
7236 .indent_size_for_line(MultiBufferRow(selection.start.row))
7237 .len,
7238 });
7239 }
7240 }
7241
7242 self.transact(cx, |this, cx| {
7243 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7244 s.select(selections);
7245 });
7246 this.insert("", cx);
7247 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7248 text,
7249 clipboard_selections,
7250 ));
7251 });
7252 }
7253
7254 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7255 let selections = self.selections.all::<Point>(cx);
7256 let buffer = self.buffer.read(cx).read(cx);
7257 let mut text = String::new();
7258
7259 let mut clipboard_selections = Vec::with_capacity(selections.len());
7260 {
7261 let max_point = buffer.max_point();
7262 let mut is_first = true;
7263 for selection in selections.iter() {
7264 let mut start = selection.start;
7265 let mut end = selection.end;
7266 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7267 if is_entire_line {
7268 start = Point::new(start.row, 0);
7269 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7270 }
7271 if is_first {
7272 is_first = false;
7273 } else {
7274 text += "\n";
7275 }
7276 let mut len = 0;
7277 for chunk in buffer.text_for_range(start..end) {
7278 text.push_str(chunk);
7279 len += chunk.len();
7280 }
7281 clipboard_selections.push(ClipboardSelection {
7282 len,
7283 is_entire_line,
7284 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7285 });
7286 }
7287 }
7288
7289 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7290 text,
7291 clipboard_selections,
7292 ));
7293 }
7294
7295 pub fn do_paste(
7296 &mut self,
7297 text: &String,
7298 clipboard_selections: Option<Vec<ClipboardSelection>>,
7299 handle_entire_lines: bool,
7300 cx: &mut ViewContext<Self>,
7301 ) {
7302 if self.read_only(cx) {
7303 return;
7304 }
7305
7306 let clipboard_text = Cow::Borrowed(text);
7307
7308 self.transact(cx, |this, cx| {
7309 if let Some(mut clipboard_selections) = clipboard_selections {
7310 let old_selections = this.selections.all::<usize>(cx);
7311 let all_selections_were_entire_line =
7312 clipboard_selections.iter().all(|s| s.is_entire_line);
7313 let first_selection_indent_column =
7314 clipboard_selections.first().map(|s| s.first_line_indent);
7315 if clipboard_selections.len() != old_selections.len() {
7316 clipboard_selections.drain(..);
7317 }
7318 let cursor_offset = this.selections.last::<usize>(cx).head();
7319 let mut auto_indent_on_paste = true;
7320
7321 this.buffer.update(cx, |buffer, cx| {
7322 let snapshot = buffer.read(cx);
7323 auto_indent_on_paste =
7324 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7325
7326 let mut start_offset = 0;
7327 let mut edits = Vec::new();
7328 let mut original_indent_columns = Vec::new();
7329 for (ix, selection) in old_selections.iter().enumerate() {
7330 let to_insert;
7331 let entire_line;
7332 let original_indent_column;
7333 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7334 let end_offset = start_offset + clipboard_selection.len;
7335 to_insert = &clipboard_text[start_offset..end_offset];
7336 entire_line = clipboard_selection.is_entire_line;
7337 start_offset = end_offset + 1;
7338 original_indent_column = Some(clipboard_selection.first_line_indent);
7339 } else {
7340 to_insert = clipboard_text.as_str();
7341 entire_line = all_selections_were_entire_line;
7342 original_indent_column = first_selection_indent_column
7343 }
7344
7345 // If the corresponding selection was empty when this slice of the
7346 // clipboard text was written, then the entire line containing the
7347 // selection was copied. If this selection is also currently empty,
7348 // then paste the line before the current line of the buffer.
7349 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7350 let column = selection.start.to_point(&snapshot).column as usize;
7351 let line_start = selection.start - column;
7352 line_start..line_start
7353 } else {
7354 selection.range()
7355 };
7356
7357 edits.push((range, to_insert));
7358 original_indent_columns.extend(original_indent_column);
7359 }
7360 drop(snapshot);
7361
7362 buffer.edit(
7363 edits,
7364 if auto_indent_on_paste {
7365 Some(AutoindentMode::Block {
7366 original_indent_columns,
7367 })
7368 } else {
7369 None
7370 },
7371 cx,
7372 );
7373 });
7374
7375 let selections = this.selections.all::<usize>(cx);
7376 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7377 } else {
7378 this.insert(&clipboard_text, cx);
7379 }
7380 });
7381 }
7382
7383 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7384 if let Some(item) = cx.read_from_clipboard() {
7385 let entries = item.entries();
7386
7387 match entries.first() {
7388 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7389 // of all the pasted entries.
7390 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7391 .do_paste(
7392 clipboard_string.text(),
7393 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7394 true,
7395 cx,
7396 ),
7397 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7398 }
7399 }
7400 }
7401
7402 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7403 if self.read_only(cx) {
7404 return;
7405 }
7406
7407 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7408 if let Some((selections, _)) =
7409 self.selection_history.transaction(transaction_id).cloned()
7410 {
7411 self.change_selections(None, cx, |s| {
7412 s.select_anchors(selections.to_vec());
7413 });
7414 }
7415 self.request_autoscroll(Autoscroll::fit(), cx);
7416 self.unmark_text(cx);
7417 self.refresh_inline_completion(true, false, cx);
7418 cx.emit(EditorEvent::Edited { transaction_id });
7419 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7420 }
7421 }
7422
7423 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7424 if self.read_only(cx) {
7425 return;
7426 }
7427
7428 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7429 if let Some((_, Some(selections))) =
7430 self.selection_history.transaction(transaction_id).cloned()
7431 {
7432 self.change_selections(None, cx, |s| {
7433 s.select_anchors(selections.to_vec());
7434 });
7435 }
7436 self.request_autoscroll(Autoscroll::fit(), cx);
7437 self.unmark_text(cx);
7438 self.refresh_inline_completion(true, false, cx);
7439 cx.emit(EditorEvent::Edited { transaction_id });
7440 }
7441 }
7442
7443 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7444 self.buffer
7445 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7446 }
7447
7448 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7449 self.buffer
7450 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7451 }
7452
7453 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7454 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7455 let line_mode = s.line_mode;
7456 s.move_with(|map, selection| {
7457 let cursor = if selection.is_empty() && !line_mode {
7458 movement::left(map, selection.start)
7459 } else {
7460 selection.start
7461 };
7462 selection.collapse_to(cursor, SelectionGoal::None);
7463 });
7464 })
7465 }
7466
7467 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7468 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7469 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7470 })
7471 }
7472
7473 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7474 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7475 let line_mode = s.line_mode;
7476 s.move_with(|map, selection| {
7477 let cursor = if selection.is_empty() && !line_mode {
7478 movement::right(map, selection.end)
7479 } else {
7480 selection.end
7481 };
7482 selection.collapse_to(cursor, SelectionGoal::None)
7483 });
7484 })
7485 }
7486
7487 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7488 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7489 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7490 })
7491 }
7492
7493 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7494 if self.take_rename(true, cx).is_some() {
7495 return;
7496 }
7497
7498 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7499 cx.propagate();
7500 return;
7501 }
7502
7503 let text_layout_details = &self.text_layout_details(cx);
7504 let selection_count = self.selections.count();
7505 let first_selection = self.selections.first_anchor();
7506
7507 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7508 let line_mode = s.line_mode;
7509 s.move_with(|map, selection| {
7510 if !selection.is_empty() && !line_mode {
7511 selection.goal = SelectionGoal::None;
7512 }
7513 let (cursor, goal) = movement::up(
7514 map,
7515 selection.start,
7516 selection.goal,
7517 false,
7518 text_layout_details,
7519 );
7520 selection.collapse_to(cursor, goal);
7521 });
7522 });
7523
7524 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7525 {
7526 cx.propagate();
7527 }
7528 }
7529
7530 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7531 if self.take_rename(true, cx).is_some() {
7532 return;
7533 }
7534
7535 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7536 cx.propagate();
7537 return;
7538 }
7539
7540 let text_layout_details = &self.text_layout_details(cx);
7541
7542 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7543 let line_mode = s.line_mode;
7544 s.move_with(|map, selection| {
7545 if !selection.is_empty() && !line_mode {
7546 selection.goal = SelectionGoal::None;
7547 }
7548 let (cursor, goal) = movement::up_by_rows(
7549 map,
7550 selection.start,
7551 action.lines,
7552 selection.goal,
7553 false,
7554 text_layout_details,
7555 );
7556 selection.collapse_to(cursor, goal);
7557 });
7558 })
7559 }
7560
7561 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7562 if self.take_rename(true, cx).is_some() {
7563 return;
7564 }
7565
7566 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7567 cx.propagate();
7568 return;
7569 }
7570
7571 let text_layout_details = &self.text_layout_details(cx);
7572
7573 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7574 let line_mode = s.line_mode;
7575 s.move_with(|map, selection| {
7576 if !selection.is_empty() && !line_mode {
7577 selection.goal = SelectionGoal::None;
7578 }
7579 let (cursor, goal) = movement::down_by_rows(
7580 map,
7581 selection.start,
7582 action.lines,
7583 selection.goal,
7584 false,
7585 text_layout_details,
7586 );
7587 selection.collapse_to(cursor, goal);
7588 });
7589 })
7590 }
7591
7592 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7593 let text_layout_details = &self.text_layout_details(cx);
7594 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7595 s.move_heads_with(|map, head, goal| {
7596 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7597 })
7598 })
7599 }
7600
7601 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7602 let text_layout_details = &self.text_layout_details(cx);
7603 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7604 s.move_heads_with(|map, head, goal| {
7605 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7606 })
7607 })
7608 }
7609
7610 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7611 let Some(row_count) = self.visible_row_count() else {
7612 return;
7613 };
7614
7615 let text_layout_details = &self.text_layout_details(cx);
7616
7617 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7618 s.move_heads_with(|map, head, goal| {
7619 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7620 })
7621 })
7622 }
7623
7624 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7625 if self.take_rename(true, cx).is_some() {
7626 return;
7627 }
7628
7629 if self
7630 .context_menu
7631 .write()
7632 .as_mut()
7633 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7634 .unwrap_or(false)
7635 {
7636 return;
7637 }
7638
7639 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7640 cx.propagate();
7641 return;
7642 }
7643
7644 let Some(row_count) = self.visible_row_count() else {
7645 return;
7646 };
7647
7648 let autoscroll = if action.center_cursor {
7649 Autoscroll::center()
7650 } else {
7651 Autoscroll::fit()
7652 };
7653
7654 let text_layout_details = &self.text_layout_details(cx);
7655
7656 self.change_selections(Some(autoscroll), cx, |s| {
7657 let line_mode = s.line_mode;
7658 s.move_with(|map, selection| {
7659 if !selection.is_empty() && !line_mode {
7660 selection.goal = SelectionGoal::None;
7661 }
7662 let (cursor, goal) = movement::up_by_rows(
7663 map,
7664 selection.end,
7665 row_count,
7666 selection.goal,
7667 false,
7668 text_layout_details,
7669 );
7670 selection.collapse_to(cursor, goal);
7671 });
7672 });
7673 }
7674
7675 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7676 let text_layout_details = &self.text_layout_details(cx);
7677 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7678 s.move_heads_with(|map, head, goal| {
7679 movement::up(map, head, goal, false, text_layout_details)
7680 })
7681 })
7682 }
7683
7684 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7685 self.take_rename(true, cx);
7686
7687 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7688 cx.propagate();
7689 return;
7690 }
7691
7692 let text_layout_details = &self.text_layout_details(cx);
7693 let selection_count = self.selections.count();
7694 let first_selection = self.selections.first_anchor();
7695
7696 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7697 let line_mode = s.line_mode;
7698 s.move_with(|map, selection| {
7699 if !selection.is_empty() && !line_mode {
7700 selection.goal = SelectionGoal::None;
7701 }
7702 let (cursor, goal) = movement::down(
7703 map,
7704 selection.end,
7705 selection.goal,
7706 false,
7707 text_layout_details,
7708 );
7709 selection.collapse_to(cursor, goal);
7710 });
7711 });
7712
7713 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7714 {
7715 cx.propagate();
7716 }
7717 }
7718
7719 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7720 let Some(row_count) = self.visible_row_count() else {
7721 return;
7722 };
7723
7724 let text_layout_details = &self.text_layout_details(cx);
7725
7726 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7727 s.move_heads_with(|map, head, goal| {
7728 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7729 })
7730 })
7731 }
7732
7733 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7734 if self.take_rename(true, cx).is_some() {
7735 return;
7736 }
7737
7738 if self
7739 .context_menu
7740 .write()
7741 .as_mut()
7742 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7743 .unwrap_or(false)
7744 {
7745 return;
7746 }
7747
7748 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7749 cx.propagate();
7750 return;
7751 }
7752
7753 let Some(row_count) = self.visible_row_count() else {
7754 return;
7755 };
7756
7757 let autoscroll = if action.center_cursor {
7758 Autoscroll::center()
7759 } else {
7760 Autoscroll::fit()
7761 };
7762
7763 let text_layout_details = &self.text_layout_details(cx);
7764 self.change_selections(Some(autoscroll), cx, |s| {
7765 let line_mode = s.line_mode;
7766 s.move_with(|map, selection| {
7767 if !selection.is_empty() && !line_mode {
7768 selection.goal = SelectionGoal::None;
7769 }
7770 let (cursor, goal) = movement::down_by_rows(
7771 map,
7772 selection.end,
7773 row_count,
7774 selection.goal,
7775 false,
7776 text_layout_details,
7777 );
7778 selection.collapse_to(cursor, goal);
7779 });
7780 });
7781 }
7782
7783 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7784 let text_layout_details = &self.text_layout_details(cx);
7785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7786 s.move_heads_with(|map, head, goal| {
7787 movement::down(map, head, goal, false, text_layout_details)
7788 })
7789 });
7790 }
7791
7792 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7793 if let Some(context_menu) = self.context_menu.write().as_mut() {
7794 context_menu.select_first(self.completion_provider.as_deref(), cx);
7795 }
7796 }
7797
7798 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7799 if let Some(context_menu) = self.context_menu.write().as_mut() {
7800 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7801 }
7802 }
7803
7804 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7805 if let Some(context_menu) = self.context_menu.write().as_mut() {
7806 context_menu.select_next(self.completion_provider.as_deref(), cx);
7807 }
7808 }
7809
7810 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7811 if let Some(context_menu) = self.context_menu.write().as_mut() {
7812 context_menu.select_last(self.completion_provider.as_deref(), cx);
7813 }
7814 }
7815
7816 pub fn move_to_previous_word_start(
7817 &mut self,
7818 _: &MoveToPreviousWordStart,
7819 cx: &mut ViewContext<Self>,
7820 ) {
7821 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7822 s.move_cursors_with(|map, head, _| {
7823 (
7824 movement::previous_word_start(map, head),
7825 SelectionGoal::None,
7826 )
7827 });
7828 })
7829 }
7830
7831 pub fn move_to_previous_subword_start(
7832 &mut self,
7833 _: &MoveToPreviousSubwordStart,
7834 cx: &mut ViewContext<Self>,
7835 ) {
7836 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7837 s.move_cursors_with(|map, head, _| {
7838 (
7839 movement::previous_subword_start(map, head),
7840 SelectionGoal::None,
7841 )
7842 });
7843 })
7844 }
7845
7846 pub fn select_to_previous_word_start(
7847 &mut self,
7848 _: &SelectToPreviousWordStart,
7849 cx: &mut ViewContext<Self>,
7850 ) {
7851 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7852 s.move_heads_with(|map, head, _| {
7853 (
7854 movement::previous_word_start(map, head),
7855 SelectionGoal::None,
7856 )
7857 });
7858 })
7859 }
7860
7861 pub fn select_to_previous_subword_start(
7862 &mut self,
7863 _: &SelectToPreviousSubwordStart,
7864 cx: &mut ViewContext<Self>,
7865 ) {
7866 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7867 s.move_heads_with(|map, head, _| {
7868 (
7869 movement::previous_subword_start(map, head),
7870 SelectionGoal::None,
7871 )
7872 });
7873 })
7874 }
7875
7876 pub fn delete_to_previous_word_start(
7877 &mut self,
7878 action: &DeleteToPreviousWordStart,
7879 cx: &mut ViewContext<Self>,
7880 ) {
7881 self.transact(cx, |this, cx| {
7882 this.select_autoclose_pair(cx);
7883 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7884 let line_mode = s.line_mode;
7885 s.move_with(|map, selection| {
7886 if selection.is_empty() && !line_mode {
7887 let cursor = if action.ignore_newlines {
7888 movement::previous_word_start(map, selection.head())
7889 } else {
7890 movement::previous_word_start_or_newline(map, selection.head())
7891 };
7892 selection.set_head(cursor, SelectionGoal::None);
7893 }
7894 });
7895 });
7896 this.insert("", cx);
7897 });
7898 }
7899
7900 pub fn delete_to_previous_subword_start(
7901 &mut self,
7902 _: &DeleteToPreviousSubwordStart,
7903 cx: &mut ViewContext<Self>,
7904 ) {
7905 self.transact(cx, |this, cx| {
7906 this.select_autoclose_pair(cx);
7907 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7908 let line_mode = s.line_mode;
7909 s.move_with(|map, selection| {
7910 if selection.is_empty() && !line_mode {
7911 let cursor = movement::previous_subword_start(map, selection.head());
7912 selection.set_head(cursor, SelectionGoal::None);
7913 }
7914 });
7915 });
7916 this.insert("", cx);
7917 });
7918 }
7919
7920 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7921 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7922 s.move_cursors_with(|map, head, _| {
7923 (movement::next_word_end(map, head), SelectionGoal::None)
7924 });
7925 })
7926 }
7927
7928 pub fn move_to_next_subword_end(
7929 &mut self,
7930 _: &MoveToNextSubwordEnd,
7931 cx: &mut ViewContext<Self>,
7932 ) {
7933 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7934 s.move_cursors_with(|map, head, _| {
7935 (movement::next_subword_end(map, head), SelectionGoal::None)
7936 });
7937 })
7938 }
7939
7940 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7941 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7942 s.move_heads_with(|map, head, _| {
7943 (movement::next_word_end(map, head), SelectionGoal::None)
7944 });
7945 })
7946 }
7947
7948 pub fn select_to_next_subword_end(
7949 &mut self,
7950 _: &SelectToNextSubwordEnd,
7951 cx: &mut ViewContext<Self>,
7952 ) {
7953 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7954 s.move_heads_with(|map, head, _| {
7955 (movement::next_subword_end(map, head), SelectionGoal::None)
7956 });
7957 })
7958 }
7959
7960 pub fn delete_to_next_word_end(
7961 &mut self,
7962 action: &DeleteToNextWordEnd,
7963 cx: &mut ViewContext<Self>,
7964 ) {
7965 self.transact(cx, |this, cx| {
7966 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7967 let line_mode = s.line_mode;
7968 s.move_with(|map, selection| {
7969 if selection.is_empty() && !line_mode {
7970 let cursor = if action.ignore_newlines {
7971 movement::next_word_end(map, selection.head())
7972 } else {
7973 movement::next_word_end_or_newline(map, selection.head())
7974 };
7975 selection.set_head(cursor, SelectionGoal::None);
7976 }
7977 });
7978 });
7979 this.insert("", cx);
7980 });
7981 }
7982
7983 pub fn delete_to_next_subword_end(
7984 &mut self,
7985 _: &DeleteToNextSubwordEnd,
7986 cx: &mut ViewContext<Self>,
7987 ) {
7988 self.transact(cx, |this, cx| {
7989 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7990 s.move_with(|map, selection| {
7991 if selection.is_empty() {
7992 let cursor = movement::next_subword_end(map, selection.head());
7993 selection.set_head(cursor, SelectionGoal::None);
7994 }
7995 });
7996 });
7997 this.insert("", cx);
7998 });
7999 }
8000
8001 pub fn move_to_beginning_of_line(
8002 &mut self,
8003 action: &MoveToBeginningOfLine,
8004 cx: &mut ViewContext<Self>,
8005 ) {
8006 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8007 s.move_cursors_with(|map, head, _| {
8008 (
8009 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8010 SelectionGoal::None,
8011 )
8012 });
8013 })
8014 }
8015
8016 pub fn select_to_beginning_of_line(
8017 &mut self,
8018 action: &SelectToBeginningOfLine,
8019 cx: &mut ViewContext<Self>,
8020 ) {
8021 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8022 s.move_heads_with(|map, head, _| {
8023 (
8024 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8025 SelectionGoal::None,
8026 )
8027 });
8028 });
8029 }
8030
8031 pub fn delete_to_beginning_of_line(
8032 &mut self,
8033 _: &DeleteToBeginningOfLine,
8034 cx: &mut ViewContext<Self>,
8035 ) {
8036 self.transact(cx, |this, cx| {
8037 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8038 s.move_with(|_, selection| {
8039 selection.reversed = true;
8040 });
8041 });
8042
8043 this.select_to_beginning_of_line(
8044 &SelectToBeginningOfLine {
8045 stop_at_soft_wraps: false,
8046 },
8047 cx,
8048 );
8049 this.backspace(&Backspace, cx);
8050 });
8051 }
8052
8053 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8054 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8055 s.move_cursors_with(|map, head, _| {
8056 (
8057 movement::line_end(map, head, action.stop_at_soft_wraps),
8058 SelectionGoal::None,
8059 )
8060 });
8061 })
8062 }
8063
8064 pub fn select_to_end_of_line(
8065 &mut self,
8066 action: &SelectToEndOfLine,
8067 cx: &mut ViewContext<Self>,
8068 ) {
8069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8070 s.move_heads_with(|map, head, _| {
8071 (
8072 movement::line_end(map, head, action.stop_at_soft_wraps),
8073 SelectionGoal::None,
8074 )
8075 });
8076 })
8077 }
8078
8079 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8080 self.transact(cx, |this, cx| {
8081 this.select_to_end_of_line(
8082 &SelectToEndOfLine {
8083 stop_at_soft_wraps: false,
8084 },
8085 cx,
8086 );
8087 this.delete(&Delete, cx);
8088 });
8089 }
8090
8091 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8092 self.transact(cx, |this, cx| {
8093 this.select_to_end_of_line(
8094 &SelectToEndOfLine {
8095 stop_at_soft_wraps: false,
8096 },
8097 cx,
8098 );
8099 this.cut(&Cut, cx);
8100 });
8101 }
8102
8103 pub fn move_to_start_of_paragraph(
8104 &mut self,
8105 _: &MoveToStartOfParagraph,
8106 cx: &mut ViewContext<Self>,
8107 ) {
8108 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8109 cx.propagate();
8110 return;
8111 }
8112
8113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8114 s.move_with(|map, selection| {
8115 selection.collapse_to(
8116 movement::start_of_paragraph(map, selection.head(), 1),
8117 SelectionGoal::None,
8118 )
8119 });
8120 })
8121 }
8122
8123 pub fn move_to_end_of_paragraph(
8124 &mut self,
8125 _: &MoveToEndOfParagraph,
8126 cx: &mut ViewContext<Self>,
8127 ) {
8128 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8129 cx.propagate();
8130 return;
8131 }
8132
8133 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8134 s.move_with(|map, selection| {
8135 selection.collapse_to(
8136 movement::end_of_paragraph(map, selection.head(), 1),
8137 SelectionGoal::None,
8138 )
8139 });
8140 })
8141 }
8142
8143 pub fn select_to_start_of_paragraph(
8144 &mut self,
8145 _: &SelectToStartOfParagraph,
8146 cx: &mut ViewContext<Self>,
8147 ) {
8148 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8149 cx.propagate();
8150 return;
8151 }
8152
8153 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8154 s.move_heads_with(|map, head, _| {
8155 (
8156 movement::start_of_paragraph(map, head, 1),
8157 SelectionGoal::None,
8158 )
8159 });
8160 })
8161 }
8162
8163 pub fn select_to_end_of_paragraph(
8164 &mut self,
8165 _: &SelectToEndOfParagraph,
8166 cx: &mut ViewContext<Self>,
8167 ) {
8168 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8169 cx.propagate();
8170 return;
8171 }
8172
8173 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8174 s.move_heads_with(|map, head, _| {
8175 (
8176 movement::end_of_paragraph(map, head, 1),
8177 SelectionGoal::None,
8178 )
8179 });
8180 })
8181 }
8182
8183 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8184 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8185 cx.propagate();
8186 return;
8187 }
8188
8189 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8190 s.select_ranges(vec![0..0]);
8191 });
8192 }
8193
8194 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8195 let mut selection = self.selections.last::<Point>(cx);
8196 selection.set_head(Point::zero(), SelectionGoal::None);
8197
8198 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8199 s.select(vec![selection]);
8200 });
8201 }
8202
8203 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8204 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8205 cx.propagate();
8206 return;
8207 }
8208
8209 let cursor = self.buffer.read(cx).read(cx).len();
8210 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8211 s.select_ranges(vec![cursor..cursor])
8212 });
8213 }
8214
8215 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8216 self.nav_history = nav_history;
8217 }
8218
8219 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8220 self.nav_history.as_ref()
8221 }
8222
8223 fn push_to_nav_history(
8224 &mut self,
8225 cursor_anchor: Anchor,
8226 new_position: Option<Point>,
8227 cx: &mut ViewContext<Self>,
8228 ) {
8229 if let Some(nav_history) = self.nav_history.as_mut() {
8230 let buffer = self.buffer.read(cx).read(cx);
8231 let cursor_position = cursor_anchor.to_point(&buffer);
8232 let scroll_state = self.scroll_manager.anchor();
8233 let scroll_top_row = scroll_state.top_row(&buffer);
8234 drop(buffer);
8235
8236 if let Some(new_position) = new_position {
8237 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8238 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8239 return;
8240 }
8241 }
8242
8243 nav_history.push(
8244 Some(NavigationData {
8245 cursor_anchor,
8246 cursor_position,
8247 scroll_anchor: scroll_state,
8248 scroll_top_row,
8249 }),
8250 cx,
8251 );
8252 }
8253 }
8254
8255 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8256 let buffer = self.buffer.read(cx).snapshot(cx);
8257 let mut selection = self.selections.first::<usize>(cx);
8258 selection.set_head(buffer.len(), SelectionGoal::None);
8259 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8260 s.select(vec![selection]);
8261 });
8262 }
8263
8264 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8265 let end = self.buffer.read(cx).read(cx).len();
8266 self.change_selections(None, cx, |s| {
8267 s.select_ranges(vec![0..end]);
8268 });
8269 }
8270
8271 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8272 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8273 let mut selections = self.selections.all::<Point>(cx);
8274 let max_point = display_map.buffer_snapshot.max_point();
8275 for selection in &mut selections {
8276 let rows = selection.spanned_rows(true, &display_map);
8277 selection.start = Point::new(rows.start.0, 0);
8278 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8279 selection.reversed = false;
8280 }
8281 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8282 s.select(selections);
8283 });
8284 }
8285
8286 pub fn split_selection_into_lines(
8287 &mut self,
8288 _: &SplitSelectionIntoLines,
8289 cx: &mut ViewContext<Self>,
8290 ) {
8291 let mut to_unfold = Vec::new();
8292 let mut new_selection_ranges = Vec::new();
8293 {
8294 let selections = self.selections.all::<Point>(cx);
8295 let buffer = self.buffer.read(cx).read(cx);
8296 for selection in selections {
8297 for row in selection.start.row..selection.end.row {
8298 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8299 new_selection_ranges.push(cursor..cursor);
8300 }
8301 new_selection_ranges.push(selection.end..selection.end);
8302 to_unfold.push(selection.start..selection.end);
8303 }
8304 }
8305 self.unfold_ranges(&to_unfold, true, true, cx);
8306 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8307 s.select_ranges(new_selection_ranges);
8308 });
8309 }
8310
8311 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8312 self.add_selection(true, cx);
8313 }
8314
8315 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8316 self.add_selection(false, cx);
8317 }
8318
8319 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8320 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8321 let mut selections = self.selections.all::<Point>(cx);
8322 let text_layout_details = self.text_layout_details(cx);
8323 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8324 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8325 let range = oldest_selection.display_range(&display_map).sorted();
8326
8327 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8328 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8329 let positions = start_x.min(end_x)..start_x.max(end_x);
8330
8331 selections.clear();
8332 let mut stack = Vec::new();
8333 for row in range.start.row().0..=range.end.row().0 {
8334 if let Some(selection) = self.selections.build_columnar_selection(
8335 &display_map,
8336 DisplayRow(row),
8337 &positions,
8338 oldest_selection.reversed,
8339 &text_layout_details,
8340 ) {
8341 stack.push(selection.id);
8342 selections.push(selection);
8343 }
8344 }
8345
8346 if above {
8347 stack.reverse();
8348 }
8349
8350 AddSelectionsState { above, stack }
8351 });
8352
8353 let last_added_selection = *state.stack.last().unwrap();
8354 let mut new_selections = Vec::new();
8355 if above == state.above {
8356 let end_row = if above {
8357 DisplayRow(0)
8358 } else {
8359 display_map.max_point().row()
8360 };
8361
8362 'outer: for selection in selections {
8363 if selection.id == last_added_selection {
8364 let range = selection.display_range(&display_map).sorted();
8365 debug_assert_eq!(range.start.row(), range.end.row());
8366 let mut row = range.start.row();
8367 let positions =
8368 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8369 px(start)..px(end)
8370 } else {
8371 let start_x =
8372 display_map.x_for_display_point(range.start, &text_layout_details);
8373 let end_x =
8374 display_map.x_for_display_point(range.end, &text_layout_details);
8375 start_x.min(end_x)..start_x.max(end_x)
8376 };
8377
8378 while row != end_row {
8379 if above {
8380 row.0 -= 1;
8381 } else {
8382 row.0 += 1;
8383 }
8384
8385 if let Some(new_selection) = self.selections.build_columnar_selection(
8386 &display_map,
8387 row,
8388 &positions,
8389 selection.reversed,
8390 &text_layout_details,
8391 ) {
8392 state.stack.push(new_selection.id);
8393 if above {
8394 new_selections.push(new_selection);
8395 new_selections.push(selection);
8396 } else {
8397 new_selections.push(selection);
8398 new_selections.push(new_selection);
8399 }
8400
8401 continue 'outer;
8402 }
8403 }
8404 }
8405
8406 new_selections.push(selection);
8407 }
8408 } else {
8409 new_selections = selections;
8410 new_selections.retain(|s| s.id != last_added_selection);
8411 state.stack.pop();
8412 }
8413
8414 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8415 s.select(new_selections);
8416 });
8417 if state.stack.len() > 1 {
8418 self.add_selections_state = Some(state);
8419 }
8420 }
8421
8422 pub fn select_next_match_internal(
8423 &mut self,
8424 display_map: &DisplaySnapshot,
8425 replace_newest: bool,
8426 autoscroll: Option<Autoscroll>,
8427 cx: &mut ViewContext<Self>,
8428 ) -> Result<()> {
8429 fn select_next_match_ranges(
8430 this: &mut Editor,
8431 range: Range<usize>,
8432 replace_newest: bool,
8433 auto_scroll: Option<Autoscroll>,
8434 cx: &mut ViewContext<Editor>,
8435 ) {
8436 this.unfold_ranges(&[range.clone()], false, true, cx);
8437 this.change_selections(auto_scroll, cx, |s| {
8438 if replace_newest {
8439 s.delete(s.newest_anchor().id);
8440 }
8441 s.insert_range(range.clone());
8442 });
8443 }
8444
8445 let buffer = &display_map.buffer_snapshot;
8446 let mut selections = self.selections.all::<usize>(cx);
8447 if let Some(mut select_next_state) = self.select_next_state.take() {
8448 let query = &select_next_state.query;
8449 if !select_next_state.done {
8450 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8451 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8452 let mut next_selected_range = None;
8453
8454 let bytes_after_last_selection =
8455 buffer.bytes_in_range(last_selection.end..buffer.len());
8456 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8457 let query_matches = query
8458 .stream_find_iter(bytes_after_last_selection)
8459 .map(|result| (last_selection.end, result))
8460 .chain(
8461 query
8462 .stream_find_iter(bytes_before_first_selection)
8463 .map(|result| (0, result)),
8464 );
8465
8466 for (start_offset, query_match) in query_matches {
8467 let query_match = query_match.unwrap(); // can only fail due to I/O
8468 let offset_range =
8469 start_offset + query_match.start()..start_offset + query_match.end();
8470 let display_range = offset_range.start.to_display_point(display_map)
8471 ..offset_range.end.to_display_point(display_map);
8472
8473 if !select_next_state.wordwise
8474 || (!movement::is_inside_word(display_map, display_range.start)
8475 && !movement::is_inside_word(display_map, display_range.end))
8476 {
8477 // TODO: This is n^2, because we might check all the selections
8478 if !selections
8479 .iter()
8480 .any(|selection| selection.range().overlaps(&offset_range))
8481 {
8482 next_selected_range = Some(offset_range);
8483 break;
8484 }
8485 }
8486 }
8487
8488 if let Some(next_selected_range) = next_selected_range {
8489 select_next_match_ranges(
8490 self,
8491 next_selected_range,
8492 replace_newest,
8493 autoscroll,
8494 cx,
8495 );
8496 } else {
8497 select_next_state.done = true;
8498 }
8499 }
8500
8501 self.select_next_state = Some(select_next_state);
8502 } else {
8503 let mut only_carets = true;
8504 let mut same_text_selected = true;
8505 let mut selected_text = None;
8506
8507 let mut selections_iter = selections.iter().peekable();
8508 while let Some(selection) = selections_iter.next() {
8509 if selection.start != selection.end {
8510 only_carets = false;
8511 }
8512
8513 if same_text_selected {
8514 if selected_text.is_none() {
8515 selected_text =
8516 Some(buffer.text_for_range(selection.range()).collect::<String>());
8517 }
8518
8519 if let Some(next_selection) = selections_iter.peek() {
8520 if next_selection.range().len() == selection.range().len() {
8521 let next_selected_text = buffer
8522 .text_for_range(next_selection.range())
8523 .collect::<String>();
8524 if Some(next_selected_text) != selected_text {
8525 same_text_selected = false;
8526 selected_text = None;
8527 }
8528 } else {
8529 same_text_selected = false;
8530 selected_text = None;
8531 }
8532 }
8533 }
8534 }
8535
8536 if only_carets {
8537 for selection in &mut selections {
8538 let word_range = movement::surrounding_word(
8539 display_map,
8540 selection.start.to_display_point(display_map),
8541 );
8542 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8543 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8544 selection.goal = SelectionGoal::None;
8545 selection.reversed = false;
8546 select_next_match_ranges(
8547 self,
8548 selection.start..selection.end,
8549 replace_newest,
8550 autoscroll,
8551 cx,
8552 );
8553 }
8554
8555 if selections.len() == 1 {
8556 let selection = selections
8557 .last()
8558 .expect("ensured that there's only one selection");
8559 let query = buffer
8560 .text_for_range(selection.start..selection.end)
8561 .collect::<String>();
8562 let is_empty = query.is_empty();
8563 let select_state = SelectNextState {
8564 query: AhoCorasick::new(&[query])?,
8565 wordwise: true,
8566 done: is_empty,
8567 };
8568 self.select_next_state = Some(select_state);
8569 } else {
8570 self.select_next_state = None;
8571 }
8572 } else if let Some(selected_text) = selected_text {
8573 self.select_next_state = Some(SelectNextState {
8574 query: AhoCorasick::new(&[selected_text])?,
8575 wordwise: false,
8576 done: false,
8577 });
8578 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8579 }
8580 }
8581 Ok(())
8582 }
8583
8584 pub fn select_all_matches(
8585 &mut self,
8586 _action: &SelectAllMatches,
8587 cx: &mut ViewContext<Self>,
8588 ) -> Result<()> {
8589 self.push_to_selection_history();
8590 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8591
8592 self.select_next_match_internal(&display_map, false, None, cx)?;
8593 let Some(select_next_state) = self.select_next_state.as_mut() else {
8594 return Ok(());
8595 };
8596 if select_next_state.done {
8597 return Ok(());
8598 }
8599
8600 let mut new_selections = self.selections.all::<usize>(cx);
8601
8602 let buffer = &display_map.buffer_snapshot;
8603 let query_matches = select_next_state
8604 .query
8605 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8606
8607 for query_match in query_matches {
8608 let query_match = query_match.unwrap(); // can only fail due to I/O
8609 let offset_range = query_match.start()..query_match.end();
8610 let display_range = offset_range.start.to_display_point(&display_map)
8611 ..offset_range.end.to_display_point(&display_map);
8612
8613 if !select_next_state.wordwise
8614 || (!movement::is_inside_word(&display_map, display_range.start)
8615 && !movement::is_inside_word(&display_map, display_range.end))
8616 {
8617 self.selections.change_with(cx, |selections| {
8618 new_selections.push(Selection {
8619 id: selections.new_selection_id(),
8620 start: offset_range.start,
8621 end: offset_range.end,
8622 reversed: false,
8623 goal: SelectionGoal::None,
8624 });
8625 });
8626 }
8627 }
8628
8629 new_selections.sort_by_key(|selection| selection.start);
8630 let mut ix = 0;
8631 while ix + 1 < new_selections.len() {
8632 let current_selection = &new_selections[ix];
8633 let next_selection = &new_selections[ix + 1];
8634 if current_selection.range().overlaps(&next_selection.range()) {
8635 if current_selection.id < next_selection.id {
8636 new_selections.remove(ix + 1);
8637 } else {
8638 new_selections.remove(ix);
8639 }
8640 } else {
8641 ix += 1;
8642 }
8643 }
8644
8645 select_next_state.done = true;
8646 self.unfold_ranges(
8647 &new_selections
8648 .iter()
8649 .map(|selection| selection.range())
8650 .collect::<Vec<_>>(),
8651 false,
8652 false,
8653 cx,
8654 );
8655 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8656 selections.select(new_selections)
8657 });
8658
8659 Ok(())
8660 }
8661
8662 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8663 self.push_to_selection_history();
8664 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8665 self.select_next_match_internal(
8666 &display_map,
8667 action.replace_newest,
8668 Some(Autoscroll::newest()),
8669 cx,
8670 )?;
8671 Ok(())
8672 }
8673
8674 pub fn select_previous(
8675 &mut self,
8676 action: &SelectPrevious,
8677 cx: &mut ViewContext<Self>,
8678 ) -> Result<()> {
8679 self.push_to_selection_history();
8680 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8681 let buffer = &display_map.buffer_snapshot;
8682 let mut selections = self.selections.all::<usize>(cx);
8683 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8684 let query = &select_prev_state.query;
8685 if !select_prev_state.done {
8686 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8687 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8688 let mut next_selected_range = None;
8689 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8690 let bytes_before_last_selection =
8691 buffer.reversed_bytes_in_range(0..last_selection.start);
8692 let bytes_after_first_selection =
8693 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8694 let query_matches = query
8695 .stream_find_iter(bytes_before_last_selection)
8696 .map(|result| (last_selection.start, result))
8697 .chain(
8698 query
8699 .stream_find_iter(bytes_after_first_selection)
8700 .map(|result| (buffer.len(), result)),
8701 );
8702 for (end_offset, query_match) in query_matches {
8703 let query_match = query_match.unwrap(); // can only fail due to I/O
8704 let offset_range =
8705 end_offset - query_match.end()..end_offset - query_match.start();
8706 let display_range = offset_range.start.to_display_point(&display_map)
8707 ..offset_range.end.to_display_point(&display_map);
8708
8709 if !select_prev_state.wordwise
8710 || (!movement::is_inside_word(&display_map, display_range.start)
8711 && !movement::is_inside_word(&display_map, display_range.end))
8712 {
8713 next_selected_range = Some(offset_range);
8714 break;
8715 }
8716 }
8717
8718 if let Some(next_selected_range) = next_selected_range {
8719 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8720 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8721 if action.replace_newest {
8722 s.delete(s.newest_anchor().id);
8723 }
8724 s.insert_range(next_selected_range);
8725 });
8726 } else {
8727 select_prev_state.done = true;
8728 }
8729 }
8730
8731 self.select_prev_state = Some(select_prev_state);
8732 } else {
8733 let mut only_carets = true;
8734 let mut same_text_selected = true;
8735 let mut selected_text = None;
8736
8737 let mut selections_iter = selections.iter().peekable();
8738 while let Some(selection) = selections_iter.next() {
8739 if selection.start != selection.end {
8740 only_carets = false;
8741 }
8742
8743 if same_text_selected {
8744 if selected_text.is_none() {
8745 selected_text =
8746 Some(buffer.text_for_range(selection.range()).collect::<String>());
8747 }
8748
8749 if let Some(next_selection) = selections_iter.peek() {
8750 if next_selection.range().len() == selection.range().len() {
8751 let next_selected_text = buffer
8752 .text_for_range(next_selection.range())
8753 .collect::<String>();
8754 if Some(next_selected_text) != selected_text {
8755 same_text_selected = false;
8756 selected_text = None;
8757 }
8758 } else {
8759 same_text_selected = false;
8760 selected_text = None;
8761 }
8762 }
8763 }
8764 }
8765
8766 if only_carets {
8767 for selection in &mut selections {
8768 let word_range = movement::surrounding_word(
8769 &display_map,
8770 selection.start.to_display_point(&display_map),
8771 );
8772 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8773 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8774 selection.goal = SelectionGoal::None;
8775 selection.reversed = false;
8776 }
8777 if selections.len() == 1 {
8778 let selection = selections
8779 .last()
8780 .expect("ensured that there's only one selection");
8781 let query = buffer
8782 .text_for_range(selection.start..selection.end)
8783 .collect::<String>();
8784 let is_empty = query.is_empty();
8785 let select_state = SelectNextState {
8786 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8787 wordwise: true,
8788 done: is_empty,
8789 };
8790 self.select_prev_state = Some(select_state);
8791 } else {
8792 self.select_prev_state = None;
8793 }
8794
8795 self.unfold_ranges(
8796 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8797 false,
8798 true,
8799 cx,
8800 );
8801 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8802 s.select(selections);
8803 });
8804 } else if let Some(selected_text) = selected_text {
8805 self.select_prev_state = Some(SelectNextState {
8806 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8807 wordwise: false,
8808 done: false,
8809 });
8810 self.select_previous(action, cx)?;
8811 }
8812 }
8813 Ok(())
8814 }
8815
8816 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8817 if self.read_only(cx) {
8818 return;
8819 }
8820 let text_layout_details = &self.text_layout_details(cx);
8821 self.transact(cx, |this, cx| {
8822 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8823 let mut edits = Vec::new();
8824 let mut selection_edit_ranges = Vec::new();
8825 let mut last_toggled_row = None;
8826 let snapshot = this.buffer.read(cx).read(cx);
8827 let empty_str: Arc<str> = Arc::default();
8828 let mut suffixes_inserted = Vec::new();
8829 let ignore_indent = action.ignore_indent;
8830
8831 fn comment_prefix_range(
8832 snapshot: &MultiBufferSnapshot,
8833 row: MultiBufferRow,
8834 comment_prefix: &str,
8835 comment_prefix_whitespace: &str,
8836 ignore_indent: bool,
8837 ) -> Range<Point> {
8838 let indent_size = if ignore_indent {
8839 0
8840 } else {
8841 snapshot.indent_size_for_line(row).len
8842 };
8843
8844 let start = Point::new(row.0, indent_size);
8845
8846 let mut line_bytes = snapshot
8847 .bytes_in_range(start..snapshot.max_point())
8848 .flatten()
8849 .copied();
8850
8851 // If this line currently begins with the line comment prefix, then record
8852 // the range containing the prefix.
8853 if line_bytes
8854 .by_ref()
8855 .take(comment_prefix.len())
8856 .eq(comment_prefix.bytes())
8857 {
8858 // Include any whitespace that matches the comment prefix.
8859 let matching_whitespace_len = line_bytes
8860 .zip(comment_prefix_whitespace.bytes())
8861 .take_while(|(a, b)| a == b)
8862 .count() as u32;
8863 let end = Point::new(
8864 start.row,
8865 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8866 );
8867 start..end
8868 } else {
8869 start..start
8870 }
8871 }
8872
8873 fn comment_suffix_range(
8874 snapshot: &MultiBufferSnapshot,
8875 row: MultiBufferRow,
8876 comment_suffix: &str,
8877 comment_suffix_has_leading_space: bool,
8878 ) -> Range<Point> {
8879 let end = Point::new(row.0, snapshot.line_len(row));
8880 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8881
8882 let mut line_end_bytes = snapshot
8883 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8884 .flatten()
8885 .copied();
8886
8887 let leading_space_len = if suffix_start_column > 0
8888 && line_end_bytes.next() == Some(b' ')
8889 && comment_suffix_has_leading_space
8890 {
8891 1
8892 } else {
8893 0
8894 };
8895
8896 // If this line currently begins with the line comment prefix, then record
8897 // the range containing the prefix.
8898 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8899 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8900 start..end
8901 } else {
8902 end..end
8903 }
8904 }
8905
8906 // TODO: Handle selections that cross excerpts
8907 for selection in &mut selections {
8908 let start_column = snapshot
8909 .indent_size_for_line(MultiBufferRow(selection.start.row))
8910 .len;
8911 let language = if let Some(language) =
8912 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8913 {
8914 language
8915 } else {
8916 continue;
8917 };
8918
8919 selection_edit_ranges.clear();
8920
8921 // If multiple selections contain a given row, avoid processing that
8922 // row more than once.
8923 let mut start_row = MultiBufferRow(selection.start.row);
8924 if last_toggled_row == Some(start_row) {
8925 start_row = start_row.next_row();
8926 }
8927 let end_row =
8928 if selection.end.row > selection.start.row && selection.end.column == 0 {
8929 MultiBufferRow(selection.end.row - 1)
8930 } else {
8931 MultiBufferRow(selection.end.row)
8932 };
8933 last_toggled_row = Some(end_row);
8934
8935 if start_row > end_row {
8936 continue;
8937 }
8938
8939 // If the language has line comments, toggle those.
8940 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8941
8942 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8943 if ignore_indent {
8944 full_comment_prefixes = full_comment_prefixes
8945 .into_iter()
8946 .map(|s| Arc::from(s.trim_end()))
8947 .collect();
8948 }
8949
8950 if !full_comment_prefixes.is_empty() {
8951 let first_prefix = full_comment_prefixes
8952 .first()
8953 .expect("prefixes is non-empty");
8954 let prefix_trimmed_lengths = full_comment_prefixes
8955 .iter()
8956 .map(|p| p.trim_end_matches(' ').len())
8957 .collect::<SmallVec<[usize; 4]>>();
8958
8959 let mut all_selection_lines_are_comments = true;
8960
8961 for row in start_row.0..=end_row.0 {
8962 let row = MultiBufferRow(row);
8963 if start_row < end_row && snapshot.is_line_blank(row) {
8964 continue;
8965 }
8966
8967 let prefix_range = full_comment_prefixes
8968 .iter()
8969 .zip(prefix_trimmed_lengths.iter().copied())
8970 .map(|(prefix, trimmed_prefix_len)| {
8971 comment_prefix_range(
8972 snapshot.deref(),
8973 row,
8974 &prefix[..trimmed_prefix_len],
8975 &prefix[trimmed_prefix_len..],
8976 ignore_indent,
8977 )
8978 })
8979 .max_by_key(|range| range.end.column - range.start.column)
8980 .expect("prefixes is non-empty");
8981
8982 if prefix_range.is_empty() {
8983 all_selection_lines_are_comments = false;
8984 }
8985
8986 selection_edit_ranges.push(prefix_range);
8987 }
8988
8989 if all_selection_lines_are_comments {
8990 edits.extend(
8991 selection_edit_ranges
8992 .iter()
8993 .cloned()
8994 .map(|range| (range, empty_str.clone())),
8995 );
8996 } else {
8997 let min_column = selection_edit_ranges
8998 .iter()
8999 .map(|range| range.start.column)
9000 .min()
9001 .unwrap_or(0);
9002 edits.extend(selection_edit_ranges.iter().map(|range| {
9003 let position = Point::new(range.start.row, min_column);
9004 (position..position, first_prefix.clone())
9005 }));
9006 }
9007 } else if let Some((full_comment_prefix, comment_suffix)) =
9008 language.block_comment_delimiters()
9009 {
9010 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9011 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9012 let prefix_range = comment_prefix_range(
9013 snapshot.deref(),
9014 start_row,
9015 comment_prefix,
9016 comment_prefix_whitespace,
9017 ignore_indent,
9018 );
9019 let suffix_range = comment_suffix_range(
9020 snapshot.deref(),
9021 end_row,
9022 comment_suffix.trim_start_matches(' '),
9023 comment_suffix.starts_with(' '),
9024 );
9025
9026 if prefix_range.is_empty() || suffix_range.is_empty() {
9027 edits.push((
9028 prefix_range.start..prefix_range.start,
9029 full_comment_prefix.clone(),
9030 ));
9031 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9032 suffixes_inserted.push((end_row, comment_suffix.len()));
9033 } else {
9034 edits.push((prefix_range, empty_str.clone()));
9035 edits.push((suffix_range, empty_str.clone()));
9036 }
9037 } else {
9038 continue;
9039 }
9040 }
9041
9042 drop(snapshot);
9043 this.buffer.update(cx, |buffer, cx| {
9044 buffer.edit(edits, None, cx);
9045 });
9046
9047 // Adjust selections so that they end before any comment suffixes that
9048 // were inserted.
9049 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9050 let mut selections = this.selections.all::<Point>(cx);
9051 let snapshot = this.buffer.read(cx).read(cx);
9052 for selection in &mut selections {
9053 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9054 match row.cmp(&MultiBufferRow(selection.end.row)) {
9055 Ordering::Less => {
9056 suffixes_inserted.next();
9057 continue;
9058 }
9059 Ordering::Greater => break,
9060 Ordering::Equal => {
9061 if selection.end.column == snapshot.line_len(row) {
9062 if selection.is_empty() {
9063 selection.start.column -= suffix_len as u32;
9064 }
9065 selection.end.column -= suffix_len as u32;
9066 }
9067 break;
9068 }
9069 }
9070 }
9071 }
9072
9073 drop(snapshot);
9074 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9075
9076 let selections = this.selections.all::<Point>(cx);
9077 let selections_on_single_row = selections.windows(2).all(|selections| {
9078 selections[0].start.row == selections[1].start.row
9079 && selections[0].end.row == selections[1].end.row
9080 && selections[0].start.row == selections[0].end.row
9081 });
9082 let selections_selecting = selections
9083 .iter()
9084 .any(|selection| selection.start != selection.end);
9085 let advance_downwards = action.advance_downwards
9086 && selections_on_single_row
9087 && !selections_selecting
9088 && !matches!(this.mode, EditorMode::SingleLine { .. });
9089
9090 if advance_downwards {
9091 let snapshot = this.buffer.read(cx).snapshot(cx);
9092
9093 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9094 s.move_cursors_with(|display_snapshot, display_point, _| {
9095 let mut point = display_point.to_point(display_snapshot);
9096 point.row += 1;
9097 point = snapshot.clip_point(point, Bias::Left);
9098 let display_point = point.to_display_point(display_snapshot);
9099 let goal = SelectionGoal::HorizontalPosition(
9100 display_snapshot
9101 .x_for_display_point(display_point, text_layout_details)
9102 .into(),
9103 );
9104 (display_point, goal)
9105 })
9106 });
9107 }
9108 });
9109 }
9110
9111 pub fn select_enclosing_symbol(
9112 &mut self,
9113 _: &SelectEnclosingSymbol,
9114 cx: &mut ViewContext<Self>,
9115 ) {
9116 let buffer = self.buffer.read(cx).snapshot(cx);
9117 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9118
9119 fn update_selection(
9120 selection: &Selection<usize>,
9121 buffer_snap: &MultiBufferSnapshot,
9122 ) -> Option<Selection<usize>> {
9123 let cursor = selection.head();
9124 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9125 for symbol in symbols.iter().rev() {
9126 let start = symbol.range.start.to_offset(buffer_snap);
9127 let end = symbol.range.end.to_offset(buffer_snap);
9128 let new_range = start..end;
9129 if start < selection.start || end > selection.end {
9130 return Some(Selection {
9131 id: selection.id,
9132 start: new_range.start,
9133 end: new_range.end,
9134 goal: SelectionGoal::None,
9135 reversed: selection.reversed,
9136 });
9137 }
9138 }
9139 None
9140 }
9141
9142 let mut selected_larger_symbol = false;
9143 let new_selections = old_selections
9144 .iter()
9145 .map(|selection| match update_selection(selection, &buffer) {
9146 Some(new_selection) => {
9147 if new_selection.range() != selection.range() {
9148 selected_larger_symbol = true;
9149 }
9150 new_selection
9151 }
9152 None => selection.clone(),
9153 })
9154 .collect::<Vec<_>>();
9155
9156 if selected_larger_symbol {
9157 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9158 s.select(new_selections);
9159 });
9160 }
9161 }
9162
9163 pub fn select_larger_syntax_node(
9164 &mut self,
9165 _: &SelectLargerSyntaxNode,
9166 cx: &mut ViewContext<Self>,
9167 ) {
9168 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9169 let buffer = self.buffer.read(cx).snapshot(cx);
9170 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9171
9172 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9173 let mut selected_larger_node = false;
9174 let new_selections = old_selections
9175 .iter()
9176 .map(|selection| {
9177 let old_range = selection.start..selection.end;
9178 let mut new_range = old_range.clone();
9179 while let Some(containing_range) =
9180 buffer.range_for_syntax_ancestor(new_range.clone())
9181 {
9182 new_range = containing_range;
9183 if !display_map.intersects_fold(new_range.start)
9184 && !display_map.intersects_fold(new_range.end)
9185 {
9186 break;
9187 }
9188 }
9189
9190 selected_larger_node |= new_range != old_range;
9191 Selection {
9192 id: selection.id,
9193 start: new_range.start,
9194 end: new_range.end,
9195 goal: SelectionGoal::None,
9196 reversed: selection.reversed,
9197 }
9198 })
9199 .collect::<Vec<_>>();
9200
9201 if selected_larger_node {
9202 stack.push(old_selections);
9203 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9204 s.select(new_selections);
9205 });
9206 }
9207 self.select_larger_syntax_node_stack = stack;
9208 }
9209
9210 pub fn select_smaller_syntax_node(
9211 &mut self,
9212 _: &SelectSmallerSyntaxNode,
9213 cx: &mut ViewContext<Self>,
9214 ) {
9215 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9216 if let Some(selections) = stack.pop() {
9217 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9218 s.select(selections.to_vec());
9219 });
9220 }
9221 self.select_larger_syntax_node_stack = stack;
9222 }
9223
9224 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9225 if !EditorSettings::get_global(cx).gutter.runnables {
9226 self.clear_tasks();
9227 return Task::ready(());
9228 }
9229 let project = self.project.as_ref().map(Model::downgrade);
9230 cx.spawn(|this, mut cx| async move {
9231 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9232 let Some(project) = project.and_then(|p| p.upgrade()) else {
9233 return;
9234 };
9235 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9236 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9237 }) else {
9238 return;
9239 };
9240
9241 let hide_runnables = project
9242 .update(&mut cx, |project, cx| {
9243 // Do not display any test indicators in non-dev server remote projects.
9244 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9245 })
9246 .unwrap_or(true);
9247 if hide_runnables {
9248 return;
9249 }
9250 let new_rows =
9251 cx.background_executor()
9252 .spawn({
9253 let snapshot = display_snapshot.clone();
9254 async move {
9255 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9256 }
9257 })
9258 .await;
9259 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9260
9261 this.update(&mut cx, |this, _| {
9262 this.clear_tasks();
9263 for (key, value) in rows {
9264 this.insert_tasks(key, value);
9265 }
9266 })
9267 .ok();
9268 })
9269 }
9270 fn fetch_runnable_ranges(
9271 snapshot: &DisplaySnapshot,
9272 range: Range<Anchor>,
9273 ) -> Vec<language::RunnableRange> {
9274 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9275 }
9276
9277 fn runnable_rows(
9278 project: Model<Project>,
9279 snapshot: DisplaySnapshot,
9280 runnable_ranges: Vec<RunnableRange>,
9281 mut cx: AsyncWindowContext,
9282 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9283 runnable_ranges
9284 .into_iter()
9285 .filter_map(|mut runnable| {
9286 let tasks = cx
9287 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9288 .ok()?;
9289 if tasks.is_empty() {
9290 return None;
9291 }
9292
9293 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9294
9295 let row = snapshot
9296 .buffer_snapshot
9297 .buffer_line_for_row(MultiBufferRow(point.row))?
9298 .1
9299 .start
9300 .row;
9301
9302 let context_range =
9303 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9304 Some((
9305 (runnable.buffer_id, row),
9306 RunnableTasks {
9307 templates: tasks,
9308 offset: MultiBufferOffset(runnable.run_range.start),
9309 context_range,
9310 column: point.column,
9311 extra_variables: runnable.extra_captures,
9312 },
9313 ))
9314 })
9315 .collect()
9316 }
9317
9318 fn templates_with_tags(
9319 project: &Model<Project>,
9320 runnable: &mut Runnable,
9321 cx: &WindowContext<'_>,
9322 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9323 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9324 let (worktree_id, file) = project
9325 .buffer_for_id(runnable.buffer, cx)
9326 .and_then(|buffer| buffer.read(cx).file())
9327 .map(|file| (file.worktree_id(cx), file.clone()))
9328 .unzip();
9329
9330 (
9331 project.task_store().read(cx).task_inventory().cloned(),
9332 worktree_id,
9333 file,
9334 )
9335 });
9336
9337 let tags = mem::take(&mut runnable.tags);
9338 let mut tags: Vec<_> = tags
9339 .into_iter()
9340 .flat_map(|tag| {
9341 let tag = tag.0.clone();
9342 inventory
9343 .as_ref()
9344 .into_iter()
9345 .flat_map(|inventory| {
9346 inventory.read(cx).list_tasks(
9347 file.clone(),
9348 Some(runnable.language.clone()),
9349 worktree_id,
9350 cx,
9351 )
9352 })
9353 .filter(move |(_, template)| {
9354 template.tags.iter().any(|source_tag| source_tag == &tag)
9355 })
9356 })
9357 .sorted_by_key(|(kind, _)| kind.to_owned())
9358 .collect();
9359 if let Some((leading_tag_source, _)) = tags.first() {
9360 // Strongest source wins; if we have worktree tag binding, prefer that to
9361 // global and language bindings;
9362 // if we have a global binding, prefer that to language binding.
9363 let first_mismatch = tags
9364 .iter()
9365 .position(|(tag_source, _)| tag_source != leading_tag_source);
9366 if let Some(index) = first_mismatch {
9367 tags.truncate(index);
9368 }
9369 }
9370
9371 tags
9372 }
9373
9374 pub fn move_to_enclosing_bracket(
9375 &mut self,
9376 _: &MoveToEnclosingBracket,
9377 cx: &mut ViewContext<Self>,
9378 ) {
9379 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9380 s.move_offsets_with(|snapshot, selection| {
9381 let Some(enclosing_bracket_ranges) =
9382 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9383 else {
9384 return;
9385 };
9386
9387 let mut best_length = usize::MAX;
9388 let mut best_inside = false;
9389 let mut best_in_bracket_range = false;
9390 let mut best_destination = None;
9391 for (open, close) in enclosing_bracket_ranges {
9392 let close = close.to_inclusive();
9393 let length = close.end() - open.start;
9394 let inside = selection.start >= open.end && selection.end <= *close.start();
9395 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9396 || close.contains(&selection.head());
9397
9398 // If best is next to a bracket and current isn't, skip
9399 if !in_bracket_range && best_in_bracket_range {
9400 continue;
9401 }
9402
9403 // Prefer smaller lengths unless best is inside and current isn't
9404 if length > best_length && (best_inside || !inside) {
9405 continue;
9406 }
9407
9408 best_length = length;
9409 best_inside = inside;
9410 best_in_bracket_range = in_bracket_range;
9411 best_destination = Some(
9412 if close.contains(&selection.start) && close.contains(&selection.end) {
9413 if inside {
9414 open.end
9415 } else {
9416 open.start
9417 }
9418 } else if inside {
9419 *close.start()
9420 } else {
9421 *close.end()
9422 },
9423 );
9424 }
9425
9426 if let Some(destination) = best_destination {
9427 selection.collapse_to(destination, SelectionGoal::None);
9428 }
9429 })
9430 });
9431 }
9432
9433 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9434 self.end_selection(cx);
9435 self.selection_history.mode = SelectionHistoryMode::Undoing;
9436 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9437 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9438 self.select_next_state = entry.select_next_state;
9439 self.select_prev_state = entry.select_prev_state;
9440 self.add_selections_state = entry.add_selections_state;
9441 self.request_autoscroll(Autoscroll::newest(), cx);
9442 }
9443 self.selection_history.mode = SelectionHistoryMode::Normal;
9444 }
9445
9446 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9447 self.end_selection(cx);
9448 self.selection_history.mode = SelectionHistoryMode::Redoing;
9449 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9450 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9451 self.select_next_state = entry.select_next_state;
9452 self.select_prev_state = entry.select_prev_state;
9453 self.add_selections_state = entry.add_selections_state;
9454 self.request_autoscroll(Autoscroll::newest(), cx);
9455 }
9456 self.selection_history.mode = SelectionHistoryMode::Normal;
9457 }
9458
9459 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9460 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9461 }
9462
9463 pub fn expand_excerpts_down(
9464 &mut self,
9465 action: &ExpandExcerptsDown,
9466 cx: &mut ViewContext<Self>,
9467 ) {
9468 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9469 }
9470
9471 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9472 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9473 }
9474
9475 pub fn expand_excerpts_for_direction(
9476 &mut self,
9477 lines: u32,
9478 direction: ExpandExcerptDirection,
9479 cx: &mut ViewContext<Self>,
9480 ) {
9481 let selections = self.selections.disjoint_anchors();
9482
9483 let lines = if lines == 0 {
9484 EditorSettings::get_global(cx).expand_excerpt_lines
9485 } else {
9486 lines
9487 };
9488
9489 self.buffer.update(cx, |buffer, cx| {
9490 buffer.expand_excerpts(
9491 selections
9492 .iter()
9493 .map(|selection| selection.head().excerpt_id)
9494 .dedup(),
9495 lines,
9496 direction,
9497 cx,
9498 )
9499 })
9500 }
9501
9502 pub fn expand_excerpt(
9503 &mut self,
9504 excerpt: ExcerptId,
9505 direction: ExpandExcerptDirection,
9506 cx: &mut ViewContext<Self>,
9507 ) {
9508 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9509 self.buffer.update(cx, |buffer, cx| {
9510 buffer.expand_excerpts([excerpt], lines, direction, cx)
9511 })
9512 }
9513
9514 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9515 self.go_to_diagnostic_impl(Direction::Next, cx)
9516 }
9517
9518 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9519 self.go_to_diagnostic_impl(Direction::Prev, cx)
9520 }
9521
9522 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9523 let buffer = self.buffer.read(cx).snapshot(cx);
9524 let selection = self.selections.newest::<usize>(cx);
9525
9526 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9527 if direction == Direction::Next {
9528 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9529 let (group_id, jump_to) = popover.activation_info();
9530 if self.activate_diagnostics(group_id, cx) {
9531 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9532 let mut new_selection = s.newest_anchor().clone();
9533 new_selection.collapse_to(jump_to, SelectionGoal::None);
9534 s.select_anchors(vec![new_selection.clone()]);
9535 });
9536 }
9537 return;
9538 }
9539 }
9540
9541 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9542 active_diagnostics
9543 .primary_range
9544 .to_offset(&buffer)
9545 .to_inclusive()
9546 });
9547 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9548 if active_primary_range.contains(&selection.head()) {
9549 *active_primary_range.start()
9550 } else {
9551 selection.head()
9552 }
9553 } else {
9554 selection.head()
9555 };
9556 let snapshot = self.snapshot(cx);
9557 loop {
9558 let diagnostics = if direction == Direction::Prev {
9559 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9560 } else {
9561 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9562 }
9563 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9564 let group = diagnostics
9565 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9566 // be sorted in a stable way
9567 // skip until we are at current active diagnostic, if it exists
9568 .skip_while(|entry| {
9569 (match direction {
9570 Direction::Prev => entry.range.start >= search_start,
9571 Direction::Next => entry.range.start <= search_start,
9572 }) && self
9573 .active_diagnostics
9574 .as_ref()
9575 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9576 })
9577 .find_map(|entry| {
9578 if entry.diagnostic.is_primary
9579 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9580 && !entry.range.is_empty()
9581 // if we match with the active diagnostic, skip it
9582 && Some(entry.diagnostic.group_id)
9583 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9584 {
9585 Some((entry.range, entry.diagnostic.group_id))
9586 } else {
9587 None
9588 }
9589 });
9590
9591 if let Some((primary_range, group_id)) = group {
9592 if self.activate_diagnostics(group_id, cx) {
9593 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9594 s.select(vec![Selection {
9595 id: selection.id,
9596 start: primary_range.start,
9597 end: primary_range.start,
9598 reversed: false,
9599 goal: SelectionGoal::None,
9600 }]);
9601 });
9602 }
9603 break;
9604 } else {
9605 // Cycle around to the start of the buffer, potentially moving back to the start of
9606 // the currently active diagnostic.
9607 active_primary_range.take();
9608 if direction == Direction::Prev {
9609 if search_start == buffer.len() {
9610 break;
9611 } else {
9612 search_start = buffer.len();
9613 }
9614 } else if search_start == 0 {
9615 break;
9616 } else {
9617 search_start = 0;
9618 }
9619 }
9620 }
9621 }
9622
9623 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9624 let snapshot = self
9625 .display_map
9626 .update(cx, |display_map, cx| display_map.snapshot(cx));
9627 let selection = self.selections.newest::<Point>(cx);
9628 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9629 }
9630
9631 fn go_to_hunk_after_position(
9632 &mut self,
9633 snapshot: &DisplaySnapshot,
9634 position: Point,
9635 cx: &mut ViewContext<'_, Editor>,
9636 ) -> Option<MultiBufferDiffHunk> {
9637 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9638 snapshot,
9639 position,
9640 false,
9641 snapshot
9642 .buffer_snapshot
9643 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9644 cx,
9645 ) {
9646 return Some(hunk);
9647 }
9648
9649 let wrapped_point = Point::zero();
9650 self.go_to_next_hunk_in_direction(
9651 snapshot,
9652 wrapped_point,
9653 true,
9654 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9655 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9656 ),
9657 cx,
9658 )
9659 }
9660
9661 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9662 let snapshot = self
9663 .display_map
9664 .update(cx, |display_map, cx| display_map.snapshot(cx));
9665 let selection = self.selections.newest::<Point>(cx);
9666
9667 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9668 }
9669
9670 fn go_to_hunk_before_position(
9671 &mut self,
9672 snapshot: &DisplaySnapshot,
9673 position: Point,
9674 cx: &mut ViewContext<'_, Editor>,
9675 ) -> Option<MultiBufferDiffHunk> {
9676 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9677 snapshot,
9678 position,
9679 false,
9680 snapshot
9681 .buffer_snapshot
9682 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9683 cx,
9684 ) {
9685 return Some(hunk);
9686 }
9687
9688 let wrapped_point = snapshot.buffer_snapshot.max_point();
9689 self.go_to_next_hunk_in_direction(
9690 snapshot,
9691 wrapped_point,
9692 true,
9693 snapshot
9694 .buffer_snapshot
9695 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9696 cx,
9697 )
9698 }
9699
9700 fn go_to_next_hunk_in_direction(
9701 &mut self,
9702 snapshot: &DisplaySnapshot,
9703 initial_point: Point,
9704 is_wrapped: bool,
9705 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9706 cx: &mut ViewContext<Editor>,
9707 ) -> Option<MultiBufferDiffHunk> {
9708 let display_point = initial_point.to_display_point(snapshot);
9709 let mut hunks = hunks
9710 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9711 .filter(|(display_hunk, _)| {
9712 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9713 })
9714 .dedup();
9715
9716 if let Some((display_hunk, hunk)) = hunks.next() {
9717 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9718 let row = display_hunk.start_display_row();
9719 let point = DisplayPoint::new(row, 0);
9720 s.select_display_ranges([point..point]);
9721 });
9722
9723 Some(hunk)
9724 } else {
9725 None
9726 }
9727 }
9728
9729 pub fn go_to_definition(
9730 &mut self,
9731 _: &GoToDefinition,
9732 cx: &mut ViewContext<Self>,
9733 ) -> Task<Result<Navigated>> {
9734 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9735 cx.spawn(|editor, mut cx| async move {
9736 if definition.await? == Navigated::Yes {
9737 return Ok(Navigated::Yes);
9738 }
9739 match editor.update(&mut cx, |editor, cx| {
9740 editor.find_all_references(&FindAllReferences, cx)
9741 })? {
9742 Some(references) => references.await,
9743 None => Ok(Navigated::No),
9744 }
9745 })
9746 }
9747
9748 pub fn go_to_declaration(
9749 &mut self,
9750 _: &GoToDeclaration,
9751 cx: &mut ViewContext<Self>,
9752 ) -> Task<Result<Navigated>> {
9753 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9754 }
9755
9756 pub fn go_to_declaration_split(
9757 &mut self,
9758 _: &GoToDeclaration,
9759 cx: &mut ViewContext<Self>,
9760 ) -> Task<Result<Navigated>> {
9761 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9762 }
9763
9764 pub fn go_to_implementation(
9765 &mut self,
9766 _: &GoToImplementation,
9767 cx: &mut ViewContext<Self>,
9768 ) -> Task<Result<Navigated>> {
9769 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9770 }
9771
9772 pub fn go_to_implementation_split(
9773 &mut self,
9774 _: &GoToImplementationSplit,
9775 cx: &mut ViewContext<Self>,
9776 ) -> Task<Result<Navigated>> {
9777 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9778 }
9779
9780 pub fn go_to_type_definition(
9781 &mut self,
9782 _: &GoToTypeDefinition,
9783 cx: &mut ViewContext<Self>,
9784 ) -> Task<Result<Navigated>> {
9785 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9786 }
9787
9788 pub fn go_to_definition_split(
9789 &mut self,
9790 _: &GoToDefinitionSplit,
9791 cx: &mut ViewContext<Self>,
9792 ) -> Task<Result<Navigated>> {
9793 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9794 }
9795
9796 pub fn go_to_type_definition_split(
9797 &mut self,
9798 _: &GoToTypeDefinitionSplit,
9799 cx: &mut ViewContext<Self>,
9800 ) -> Task<Result<Navigated>> {
9801 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9802 }
9803
9804 fn go_to_definition_of_kind(
9805 &mut self,
9806 kind: GotoDefinitionKind,
9807 split: bool,
9808 cx: &mut ViewContext<Self>,
9809 ) -> Task<Result<Navigated>> {
9810 let Some(provider) = self.semantics_provider.clone() else {
9811 return Task::ready(Ok(Navigated::No));
9812 };
9813 let head = self.selections.newest::<usize>(cx).head();
9814 let buffer = self.buffer.read(cx);
9815 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9816 text_anchor
9817 } else {
9818 return Task::ready(Ok(Navigated::No));
9819 };
9820
9821 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9822 return Task::ready(Ok(Navigated::No));
9823 };
9824
9825 cx.spawn(|editor, mut cx| async move {
9826 let definitions = definitions.await?;
9827 let navigated = editor
9828 .update(&mut cx, |editor, cx| {
9829 editor.navigate_to_hover_links(
9830 Some(kind),
9831 definitions
9832 .into_iter()
9833 .filter(|location| {
9834 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9835 })
9836 .map(HoverLink::Text)
9837 .collect::<Vec<_>>(),
9838 split,
9839 cx,
9840 )
9841 })?
9842 .await?;
9843 anyhow::Ok(navigated)
9844 })
9845 }
9846
9847 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9848 let position = self.selections.newest_anchor().head();
9849 let Some((buffer, buffer_position)) =
9850 self.buffer.read(cx).text_anchor_for_position(position, cx)
9851 else {
9852 return;
9853 };
9854
9855 cx.spawn(|editor, mut cx| async move {
9856 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9857 editor.update(&mut cx, |_, cx| {
9858 cx.open_url(&url);
9859 })
9860 } else {
9861 Ok(())
9862 }
9863 })
9864 .detach();
9865 }
9866
9867 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9868 let Some(workspace) = self.workspace() else {
9869 return;
9870 };
9871
9872 let position = self.selections.newest_anchor().head();
9873
9874 let Some((buffer, buffer_position)) =
9875 self.buffer.read(cx).text_anchor_for_position(position, cx)
9876 else {
9877 return;
9878 };
9879
9880 let project = self.project.clone();
9881
9882 cx.spawn(|_, mut cx| async move {
9883 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9884
9885 if let Some((_, path)) = result {
9886 workspace
9887 .update(&mut cx, |workspace, cx| {
9888 workspace.open_resolved_path(path, cx)
9889 })?
9890 .await?;
9891 }
9892 anyhow::Ok(())
9893 })
9894 .detach();
9895 }
9896
9897 pub(crate) fn navigate_to_hover_links(
9898 &mut self,
9899 kind: Option<GotoDefinitionKind>,
9900 mut definitions: Vec<HoverLink>,
9901 split: bool,
9902 cx: &mut ViewContext<Editor>,
9903 ) -> Task<Result<Navigated>> {
9904 // If there is one definition, just open it directly
9905 if definitions.len() == 1 {
9906 let definition = definitions.pop().unwrap();
9907
9908 enum TargetTaskResult {
9909 Location(Option<Location>),
9910 AlreadyNavigated,
9911 }
9912
9913 let target_task = match definition {
9914 HoverLink::Text(link) => {
9915 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9916 }
9917 HoverLink::InlayHint(lsp_location, server_id) => {
9918 let computation = self.compute_target_location(lsp_location, server_id, cx);
9919 cx.background_executor().spawn(async move {
9920 let location = computation.await?;
9921 Ok(TargetTaskResult::Location(location))
9922 })
9923 }
9924 HoverLink::Url(url) => {
9925 cx.open_url(&url);
9926 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9927 }
9928 HoverLink::File(path) => {
9929 if let Some(workspace) = self.workspace() {
9930 cx.spawn(|_, mut cx| async move {
9931 workspace
9932 .update(&mut cx, |workspace, cx| {
9933 workspace.open_resolved_path(path, cx)
9934 })?
9935 .await
9936 .map(|_| TargetTaskResult::AlreadyNavigated)
9937 })
9938 } else {
9939 Task::ready(Ok(TargetTaskResult::Location(None)))
9940 }
9941 }
9942 };
9943 cx.spawn(|editor, mut cx| async move {
9944 let target = match target_task.await.context("target resolution task")? {
9945 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9946 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9947 TargetTaskResult::Location(Some(target)) => target,
9948 };
9949
9950 editor.update(&mut cx, |editor, cx| {
9951 let Some(workspace) = editor.workspace() else {
9952 return Navigated::No;
9953 };
9954 let pane = workspace.read(cx).active_pane().clone();
9955
9956 let range = target.range.to_offset(target.buffer.read(cx));
9957 let range = editor.range_for_match(&range);
9958
9959 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9960 let buffer = target.buffer.read(cx);
9961 let range = check_multiline_range(buffer, range);
9962 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9963 s.select_ranges([range]);
9964 });
9965 } else {
9966 cx.window_context().defer(move |cx| {
9967 let target_editor: View<Self> =
9968 workspace.update(cx, |workspace, cx| {
9969 let pane = if split {
9970 workspace.adjacent_pane(cx)
9971 } else {
9972 workspace.active_pane().clone()
9973 };
9974
9975 workspace.open_project_item(
9976 pane,
9977 target.buffer.clone(),
9978 true,
9979 true,
9980 cx,
9981 )
9982 });
9983 target_editor.update(cx, |target_editor, cx| {
9984 // When selecting a definition in a different buffer, disable the nav history
9985 // to avoid creating a history entry at the previous cursor location.
9986 pane.update(cx, |pane, _| pane.disable_history());
9987 let buffer = target.buffer.read(cx);
9988 let range = check_multiline_range(buffer, range);
9989 target_editor.change_selections(
9990 Some(Autoscroll::focused()),
9991 cx,
9992 |s| {
9993 s.select_ranges([range]);
9994 },
9995 );
9996 pane.update(cx, |pane, _| pane.enable_history());
9997 });
9998 });
9999 }
10000 Navigated::Yes
10001 })
10002 })
10003 } else if !definitions.is_empty() {
10004 cx.spawn(|editor, mut cx| async move {
10005 let (title, location_tasks, workspace) = editor
10006 .update(&mut cx, |editor, cx| {
10007 let tab_kind = match kind {
10008 Some(GotoDefinitionKind::Implementation) => "Implementations",
10009 _ => "Definitions",
10010 };
10011 let title = definitions
10012 .iter()
10013 .find_map(|definition| match definition {
10014 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10015 let buffer = origin.buffer.read(cx);
10016 format!(
10017 "{} for {}",
10018 tab_kind,
10019 buffer
10020 .text_for_range(origin.range.clone())
10021 .collect::<String>()
10022 )
10023 }),
10024 HoverLink::InlayHint(_, _) => None,
10025 HoverLink::Url(_) => None,
10026 HoverLink::File(_) => None,
10027 })
10028 .unwrap_or(tab_kind.to_string());
10029 let location_tasks = definitions
10030 .into_iter()
10031 .map(|definition| match definition {
10032 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10033 HoverLink::InlayHint(lsp_location, server_id) => {
10034 editor.compute_target_location(lsp_location, server_id, cx)
10035 }
10036 HoverLink::Url(_) => Task::ready(Ok(None)),
10037 HoverLink::File(_) => Task::ready(Ok(None)),
10038 })
10039 .collect::<Vec<_>>();
10040 (title, location_tasks, editor.workspace().clone())
10041 })
10042 .context("location tasks preparation")?;
10043
10044 let locations = future::join_all(location_tasks)
10045 .await
10046 .into_iter()
10047 .filter_map(|location| location.transpose())
10048 .collect::<Result<_>>()
10049 .context("location tasks")?;
10050
10051 let Some(workspace) = workspace else {
10052 return Ok(Navigated::No);
10053 };
10054 let opened = workspace
10055 .update(&mut cx, |workspace, cx| {
10056 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10057 })
10058 .ok();
10059
10060 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10061 })
10062 } else {
10063 Task::ready(Ok(Navigated::No))
10064 }
10065 }
10066
10067 fn compute_target_location(
10068 &self,
10069 lsp_location: lsp::Location,
10070 server_id: LanguageServerId,
10071 cx: &mut ViewContext<Self>,
10072 ) -> Task<anyhow::Result<Option<Location>>> {
10073 let Some(project) = self.project.clone() else {
10074 return Task::Ready(Some(Ok(None)));
10075 };
10076
10077 cx.spawn(move |editor, mut cx| async move {
10078 let location_task = editor.update(&mut cx, |_, cx| {
10079 project.update(cx, |project, cx| {
10080 let language_server_name = project
10081 .language_server_statuses(cx)
10082 .find(|(id, _)| server_id == *id)
10083 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10084 language_server_name.map(|language_server_name| {
10085 project.open_local_buffer_via_lsp(
10086 lsp_location.uri.clone(),
10087 server_id,
10088 language_server_name,
10089 cx,
10090 )
10091 })
10092 })
10093 })?;
10094 let location = match location_task {
10095 Some(task) => Some({
10096 let target_buffer_handle = task.await.context("open local buffer")?;
10097 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10098 let target_start = target_buffer
10099 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10100 let target_end = target_buffer
10101 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10102 target_buffer.anchor_after(target_start)
10103 ..target_buffer.anchor_before(target_end)
10104 })?;
10105 Location {
10106 buffer: target_buffer_handle,
10107 range,
10108 }
10109 }),
10110 None => None,
10111 };
10112 Ok(location)
10113 })
10114 }
10115
10116 pub fn find_all_references(
10117 &mut self,
10118 _: &FindAllReferences,
10119 cx: &mut ViewContext<Self>,
10120 ) -> Option<Task<Result<Navigated>>> {
10121 let selection = self.selections.newest::<usize>(cx);
10122 let multi_buffer = self.buffer.read(cx);
10123 let head = selection.head();
10124
10125 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10126 let head_anchor = multi_buffer_snapshot.anchor_at(
10127 head,
10128 if head < selection.tail() {
10129 Bias::Right
10130 } else {
10131 Bias::Left
10132 },
10133 );
10134
10135 match self
10136 .find_all_references_task_sources
10137 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10138 {
10139 Ok(_) => {
10140 log::info!(
10141 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10142 );
10143 return None;
10144 }
10145 Err(i) => {
10146 self.find_all_references_task_sources.insert(i, head_anchor);
10147 }
10148 }
10149
10150 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10151 let workspace = self.workspace()?;
10152 let project = workspace.read(cx).project().clone();
10153 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10154 Some(cx.spawn(|editor, mut cx| async move {
10155 let _cleanup = defer({
10156 let mut cx = cx.clone();
10157 move || {
10158 let _ = editor.update(&mut cx, |editor, _| {
10159 if let Ok(i) =
10160 editor
10161 .find_all_references_task_sources
10162 .binary_search_by(|anchor| {
10163 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10164 })
10165 {
10166 editor.find_all_references_task_sources.remove(i);
10167 }
10168 });
10169 }
10170 });
10171
10172 let locations = references.await?;
10173 if locations.is_empty() {
10174 return anyhow::Ok(Navigated::No);
10175 }
10176
10177 workspace.update(&mut cx, |workspace, cx| {
10178 let title = locations
10179 .first()
10180 .as_ref()
10181 .map(|location| {
10182 let buffer = location.buffer.read(cx);
10183 format!(
10184 "References to `{}`",
10185 buffer
10186 .text_for_range(location.range.clone())
10187 .collect::<String>()
10188 )
10189 })
10190 .unwrap();
10191 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10192 Navigated::Yes
10193 })
10194 }))
10195 }
10196
10197 /// Opens a multibuffer with the given project locations in it
10198 pub fn open_locations_in_multibuffer(
10199 workspace: &mut Workspace,
10200 mut locations: Vec<Location>,
10201 title: String,
10202 split: bool,
10203 cx: &mut ViewContext<Workspace>,
10204 ) {
10205 // If there are multiple definitions, open them in a multibuffer
10206 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10207 let mut locations = locations.into_iter().peekable();
10208 let mut ranges_to_highlight = Vec::new();
10209 let capability = workspace.project().read(cx).capability();
10210
10211 let excerpt_buffer = cx.new_model(|cx| {
10212 let mut multibuffer = MultiBuffer::new(capability);
10213 while let Some(location) = locations.next() {
10214 let buffer = location.buffer.read(cx);
10215 let mut ranges_for_buffer = Vec::new();
10216 let range = location.range.to_offset(buffer);
10217 ranges_for_buffer.push(range.clone());
10218
10219 while let Some(next_location) = locations.peek() {
10220 if next_location.buffer == location.buffer {
10221 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10222 locations.next();
10223 } else {
10224 break;
10225 }
10226 }
10227
10228 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10229 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10230 location.buffer.clone(),
10231 ranges_for_buffer,
10232 DEFAULT_MULTIBUFFER_CONTEXT,
10233 cx,
10234 ))
10235 }
10236
10237 multibuffer.with_title(title)
10238 });
10239
10240 let editor = cx.new_view(|cx| {
10241 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10242 });
10243 editor.update(cx, |editor, cx| {
10244 if let Some(first_range) = ranges_to_highlight.first() {
10245 editor.change_selections(None, cx, |selections| {
10246 selections.clear_disjoint();
10247 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10248 });
10249 }
10250 editor.highlight_background::<Self>(
10251 &ranges_to_highlight,
10252 |theme| theme.editor_highlighted_line_background,
10253 cx,
10254 );
10255 });
10256
10257 let item = Box::new(editor);
10258 let item_id = item.item_id();
10259
10260 if split {
10261 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10262 } else {
10263 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10264 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10265 pane.close_current_preview_item(cx)
10266 } else {
10267 None
10268 }
10269 });
10270 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10271 }
10272 workspace.active_pane().update(cx, |pane, cx| {
10273 pane.set_preview_item_id(Some(item_id), cx);
10274 });
10275 }
10276
10277 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10278 use language::ToOffset as _;
10279
10280 let provider = self.semantics_provider.clone()?;
10281 let selection = self.selections.newest_anchor().clone();
10282 let (cursor_buffer, cursor_buffer_position) = self
10283 .buffer
10284 .read(cx)
10285 .text_anchor_for_position(selection.head(), cx)?;
10286 let (tail_buffer, cursor_buffer_position_end) = self
10287 .buffer
10288 .read(cx)
10289 .text_anchor_for_position(selection.tail(), cx)?;
10290 if tail_buffer != cursor_buffer {
10291 return None;
10292 }
10293
10294 let snapshot = cursor_buffer.read(cx).snapshot();
10295 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10296 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10297 let prepare_rename = provider
10298 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10299 .unwrap_or_else(|| Task::ready(Ok(None)));
10300 drop(snapshot);
10301
10302 Some(cx.spawn(|this, mut cx| async move {
10303 let rename_range = if let Some(range) = prepare_rename.await? {
10304 Some(range)
10305 } else {
10306 this.update(&mut cx, |this, cx| {
10307 let buffer = this.buffer.read(cx).snapshot(cx);
10308 let mut buffer_highlights = this
10309 .document_highlights_for_position(selection.head(), &buffer)
10310 .filter(|highlight| {
10311 highlight.start.excerpt_id == selection.head().excerpt_id
10312 && highlight.end.excerpt_id == selection.head().excerpt_id
10313 });
10314 buffer_highlights
10315 .next()
10316 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10317 })?
10318 };
10319 if let Some(rename_range) = rename_range {
10320 this.update(&mut cx, |this, cx| {
10321 let snapshot = cursor_buffer.read(cx).snapshot();
10322 let rename_buffer_range = rename_range.to_offset(&snapshot);
10323 let cursor_offset_in_rename_range =
10324 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10325 let cursor_offset_in_rename_range_end =
10326 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10327
10328 this.take_rename(false, cx);
10329 let buffer = this.buffer.read(cx).read(cx);
10330 let cursor_offset = selection.head().to_offset(&buffer);
10331 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10332 let rename_end = rename_start + rename_buffer_range.len();
10333 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10334 let mut old_highlight_id = None;
10335 let old_name: Arc<str> = buffer
10336 .chunks(rename_start..rename_end, true)
10337 .map(|chunk| {
10338 if old_highlight_id.is_none() {
10339 old_highlight_id = chunk.syntax_highlight_id;
10340 }
10341 chunk.text
10342 })
10343 .collect::<String>()
10344 .into();
10345
10346 drop(buffer);
10347
10348 // Position the selection in the rename editor so that it matches the current selection.
10349 this.show_local_selections = false;
10350 let rename_editor = cx.new_view(|cx| {
10351 let mut editor = Editor::single_line(cx);
10352 editor.buffer.update(cx, |buffer, cx| {
10353 buffer.edit([(0..0, old_name.clone())], None, cx)
10354 });
10355 let rename_selection_range = match cursor_offset_in_rename_range
10356 .cmp(&cursor_offset_in_rename_range_end)
10357 {
10358 Ordering::Equal => {
10359 editor.select_all(&SelectAll, cx);
10360 return editor;
10361 }
10362 Ordering::Less => {
10363 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10364 }
10365 Ordering::Greater => {
10366 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10367 }
10368 };
10369 if rename_selection_range.end > old_name.len() {
10370 editor.select_all(&SelectAll, cx);
10371 } else {
10372 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10373 s.select_ranges([rename_selection_range]);
10374 });
10375 }
10376 editor
10377 });
10378 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10379 if e == &EditorEvent::Focused {
10380 cx.emit(EditorEvent::FocusedIn)
10381 }
10382 })
10383 .detach();
10384
10385 let write_highlights =
10386 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10387 let read_highlights =
10388 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10389 let ranges = write_highlights
10390 .iter()
10391 .flat_map(|(_, ranges)| ranges.iter())
10392 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10393 .cloned()
10394 .collect();
10395
10396 this.highlight_text::<Rename>(
10397 ranges,
10398 HighlightStyle {
10399 fade_out: Some(0.6),
10400 ..Default::default()
10401 },
10402 cx,
10403 );
10404 let rename_focus_handle = rename_editor.focus_handle(cx);
10405 cx.focus(&rename_focus_handle);
10406 let block_id = this.insert_blocks(
10407 [BlockProperties {
10408 style: BlockStyle::Flex,
10409 placement: BlockPlacement::Below(range.start),
10410 height: 1,
10411 render: Box::new({
10412 let rename_editor = rename_editor.clone();
10413 move |cx: &mut BlockContext| {
10414 let mut text_style = cx.editor_style.text.clone();
10415 if let Some(highlight_style) = old_highlight_id
10416 .and_then(|h| h.style(&cx.editor_style.syntax))
10417 {
10418 text_style = text_style.highlight(highlight_style);
10419 }
10420 div()
10421 .pl(cx.anchor_x)
10422 .child(EditorElement::new(
10423 &rename_editor,
10424 EditorStyle {
10425 background: cx.theme().system().transparent,
10426 local_player: cx.editor_style.local_player,
10427 text: text_style,
10428 scrollbar_width: cx.editor_style.scrollbar_width,
10429 syntax: cx.editor_style.syntax.clone(),
10430 status: cx.editor_style.status.clone(),
10431 inlay_hints_style: HighlightStyle {
10432 font_weight: Some(FontWeight::BOLD),
10433 ..make_inlay_hints_style(cx)
10434 },
10435 suggestions_style: HighlightStyle {
10436 color: Some(cx.theme().status().predictive),
10437 ..HighlightStyle::default()
10438 },
10439 ..EditorStyle::default()
10440 },
10441 ))
10442 .into_any_element()
10443 }
10444 }),
10445 priority: 0,
10446 }],
10447 Some(Autoscroll::fit()),
10448 cx,
10449 )[0];
10450 this.pending_rename = Some(RenameState {
10451 range,
10452 old_name,
10453 editor: rename_editor,
10454 block_id,
10455 });
10456 })?;
10457 }
10458
10459 Ok(())
10460 }))
10461 }
10462
10463 pub fn confirm_rename(
10464 &mut self,
10465 _: &ConfirmRename,
10466 cx: &mut ViewContext<Self>,
10467 ) -> Option<Task<Result<()>>> {
10468 let rename = self.take_rename(false, cx)?;
10469 let workspace = self.workspace()?.downgrade();
10470 let (buffer, start) = self
10471 .buffer
10472 .read(cx)
10473 .text_anchor_for_position(rename.range.start, cx)?;
10474 let (end_buffer, _) = self
10475 .buffer
10476 .read(cx)
10477 .text_anchor_for_position(rename.range.end, cx)?;
10478 if buffer != end_buffer {
10479 return None;
10480 }
10481
10482 let old_name = rename.old_name;
10483 let new_name = rename.editor.read(cx).text(cx);
10484
10485 let rename = self.semantics_provider.as_ref()?.perform_rename(
10486 &buffer,
10487 start,
10488 new_name.clone(),
10489 cx,
10490 )?;
10491
10492 Some(cx.spawn(|editor, mut cx| async move {
10493 let project_transaction = rename.await?;
10494 Self::open_project_transaction(
10495 &editor,
10496 workspace,
10497 project_transaction,
10498 format!("Rename: {} → {}", old_name, new_name),
10499 cx.clone(),
10500 )
10501 .await?;
10502
10503 editor.update(&mut cx, |editor, cx| {
10504 editor.refresh_document_highlights(cx);
10505 })?;
10506 Ok(())
10507 }))
10508 }
10509
10510 fn take_rename(
10511 &mut self,
10512 moving_cursor: bool,
10513 cx: &mut ViewContext<Self>,
10514 ) -> Option<RenameState> {
10515 let rename = self.pending_rename.take()?;
10516 if rename.editor.focus_handle(cx).is_focused(cx) {
10517 cx.focus(&self.focus_handle);
10518 }
10519
10520 self.remove_blocks(
10521 [rename.block_id].into_iter().collect(),
10522 Some(Autoscroll::fit()),
10523 cx,
10524 );
10525 self.clear_highlights::<Rename>(cx);
10526 self.show_local_selections = true;
10527
10528 if moving_cursor {
10529 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10530 editor.selections.newest::<usize>(cx).head()
10531 });
10532
10533 // Update the selection to match the position of the selection inside
10534 // the rename editor.
10535 let snapshot = self.buffer.read(cx).read(cx);
10536 let rename_range = rename.range.to_offset(&snapshot);
10537 let cursor_in_editor = snapshot
10538 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10539 .min(rename_range.end);
10540 drop(snapshot);
10541
10542 self.change_selections(None, cx, |s| {
10543 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10544 });
10545 } else {
10546 self.refresh_document_highlights(cx);
10547 }
10548
10549 Some(rename)
10550 }
10551
10552 pub fn pending_rename(&self) -> Option<&RenameState> {
10553 self.pending_rename.as_ref()
10554 }
10555
10556 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10557 let project = match &self.project {
10558 Some(project) => project.clone(),
10559 None => return None,
10560 };
10561
10562 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10563 }
10564
10565 fn format_selections(
10566 &mut self,
10567 _: &FormatSelections,
10568 cx: &mut ViewContext<Self>,
10569 ) -> Option<Task<Result<()>>> {
10570 let project = match &self.project {
10571 Some(project) => project.clone(),
10572 None => return None,
10573 };
10574
10575 let selections = self
10576 .selections
10577 .all_adjusted(cx)
10578 .into_iter()
10579 .filter(|s| !s.is_empty())
10580 .collect_vec();
10581
10582 Some(self.perform_format(
10583 project,
10584 FormatTrigger::Manual,
10585 FormatTarget::Ranges(selections),
10586 cx,
10587 ))
10588 }
10589
10590 fn perform_format(
10591 &mut self,
10592 project: Model<Project>,
10593 trigger: FormatTrigger,
10594 target: FormatTarget,
10595 cx: &mut ViewContext<Self>,
10596 ) -> Task<Result<()>> {
10597 let buffer = self.buffer().clone();
10598 let mut buffers = buffer.read(cx).all_buffers();
10599 if trigger == FormatTrigger::Save {
10600 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10601 }
10602
10603 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10604 let format = project.update(cx, |project, cx| {
10605 project.format(buffers, true, trigger, target, cx)
10606 });
10607
10608 cx.spawn(|_, mut cx| async move {
10609 let transaction = futures::select_biased! {
10610 () = timeout => {
10611 log::warn!("timed out waiting for formatting");
10612 None
10613 }
10614 transaction = format.log_err().fuse() => transaction,
10615 };
10616
10617 buffer
10618 .update(&mut cx, |buffer, cx| {
10619 if let Some(transaction) = transaction {
10620 if !buffer.is_singleton() {
10621 buffer.push_transaction(&transaction.0, cx);
10622 }
10623 }
10624
10625 cx.notify();
10626 })
10627 .ok();
10628
10629 Ok(())
10630 })
10631 }
10632
10633 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10634 if let Some(project) = self.project.clone() {
10635 self.buffer.update(cx, |multi_buffer, cx| {
10636 project.update(cx, |project, cx| {
10637 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10638 });
10639 })
10640 }
10641 }
10642
10643 fn cancel_language_server_work(
10644 &mut self,
10645 _: &actions::CancelLanguageServerWork,
10646 cx: &mut ViewContext<Self>,
10647 ) {
10648 if let Some(project) = self.project.clone() {
10649 self.buffer.update(cx, |multi_buffer, cx| {
10650 project.update(cx, |project, cx| {
10651 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10652 });
10653 })
10654 }
10655 }
10656
10657 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10658 cx.show_character_palette();
10659 }
10660
10661 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10662 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10663 let buffer = self.buffer.read(cx).snapshot(cx);
10664 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10665 let is_valid = buffer
10666 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10667 .any(|entry| {
10668 entry.diagnostic.is_primary
10669 && !entry.range.is_empty()
10670 && entry.range.start == primary_range_start
10671 && entry.diagnostic.message == active_diagnostics.primary_message
10672 });
10673
10674 if is_valid != active_diagnostics.is_valid {
10675 active_diagnostics.is_valid = is_valid;
10676 let mut new_styles = HashMap::default();
10677 for (block_id, diagnostic) in &active_diagnostics.blocks {
10678 new_styles.insert(
10679 *block_id,
10680 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10681 );
10682 }
10683 self.display_map.update(cx, |display_map, _cx| {
10684 display_map.replace_blocks(new_styles)
10685 });
10686 }
10687 }
10688 }
10689
10690 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10691 self.dismiss_diagnostics(cx);
10692 let snapshot = self.snapshot(cx);
10693 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10694 let buffer = self.buffer.read(cx).snapshot(cx);
10695
10696 let mut primary_range = None;
10697 let mut primary_message = None;
10698 let mut group_end = Point::zero();
10699 let diagnostic_group = buffer
10700 .diagnostic_group::<MultiBufferPoint>(group_id)
10701 .filter_map(|entry| {
10702 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10703 && (entry.range.start.row == entry.range.end.row
10704 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10705 {
10706 return None;
10707 }
10708 if entry.range.end > group_end {
10709 group_end = entry.range.end;
10710 }
10711 if entry.diagnostic.is_primary {
10712 primary_range = Some(entry.range.clone());
10713 primary_message = Some(entry.diagnostic.message.clone());
10714 }
10715 Some(entry)
10716 })
10717 .collect::<Vec<_>>();
10718 let primary_range = primary_range?;
10719 let primary_message = primary_message?;
10720 let primary_range =
10721 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10722
10723 let blocks = display_map
10724 .insert_blocks(
10725 diagnostic_group.iter().map(|entry| {
10726 let diagnostic = entry.diagnostic.clone();
10727 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10728 BlockProperties {
10729 style: BlockStyle::Fixed,
10730 placement: BlockPlacement::Below(
10731 buffer.anchor_after(entry.range.start),
10732 ),
10733 height: message_height,
10734 render: diagnostic_block_renderer(diagnostic, None, true, true),
10735 priority: 0,
10736 }
10737 }),
10738 cx,
10739 )
10740 .into_iter()
10741 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10742 .collect();
10743
10744 Some(ActiveDiagnosticGroup {
10745 primary_range,
10746 primary_message,
10747 group_id,
10748 blocks,
10749 is_valid: true,
10750 })
10751 });
10752 self.active_diagnostics.is_some()
10753 }
10754
10755 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10756 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10757 self.display_map.update(cx, |display_map, cx| {
10758 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10759 });
10760 cx.notify();
10761 }
10762 }
10763
10764 pub fn set_selections_from_remote(
10765 &mut self,
10766 selections: Vec<Selection<Anchor>>,
10767 pending_selection: Option<Selection<Anchor>>,
10768 cx: &mut ViewContext<Self>,
10769 ) {
10770 let old_cursor_position = self.selections.newest_anchor().head();
10771 self.selections.change_with(cx, |s| {
10772 s.select_anchors(selections);
10773 if let Some(pending_selection) = pending_selection {
10774 s.set_pending(pending_selection, SelectMode::Character);
10775 } else {
10776 s.clear_pending();
10777 }
10778 });
10779 self.selections_did_change(false, &old_cursor_position, true, cx);
10780 }
10781
10782 fn push_to_selection_history(&mut self) {
10783 self.selection_history.push(SelectionHistoryEntry {
10784 selections: self.selections.disjoint_anchors(),
10785 select_next_state: self.select_next_state.clone(),
10786 select_prev_state: self.select_prev_state.clone(),
10787 add_selections_state: self.add_selections_state.clone(),
10788 });
10789 }
10790
10791 pub fn transact(
10792 &mut self,
10793 cx: &mut ViewContext<Self>,
10794 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10795 ) -> Option<TransactionId> {
10796 self.start_transaction_at(Instant::now(), cx);
10797 update(self, cx);
10798 self.end_transaction_at(Instant::now(), cx)
10799 }
10800
10801 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10802 self.end_selection(cx);
10803 if let Some(tx_id) = self
10804 .buffer
10805 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10806 {
10807 self.selection_history
10808 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10809 cx.emit(EditorEvent::TransactionBegun {
10810 transaction_id: tx_id,
10811 })
10812 }
10813 }
10814
10815 fn end_transaction_at(
10816 &mut self,
10817 now: Instant,
10818 cx: &mut ViewContext<Self>,
10819 ) -> Option<TransactionId> {
10820 if let Some(transaction_id) = self
10821 .buffer
10822 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10823 {
10824 if let Some((_, end_selections)) =
10825 self.selection_history.transaction_mut(transaction_id)
10826 {
10827 *end_selections = Some(self.selections.disjoint_anchors());
10828 } else {
10829 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10830 }
10831
10832 cx.emit(EditorEvent::Edited { transaction_id });
10833 Some(transaction_id)
10834 } else {
10835 None
10836 }
10837 }
10838
10839 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10840 let selection = self.selections.newest::<Point>(cx);
10841
10842 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10843 let range = if selection.is_empty() {
10844 let point = selection.head().to_display_point(&display_map);
10845 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10846 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10847 .to_point(&display_map);
10848 start..end
10849 } else {
10850 selection.range()
10851 };
10852 if display_map.folds_in_range(range).next().is_some() {
10853 self.unfold_lines(&Default::default(), cx)
10854 } else {
10855 self.fold(&Default::default(), cx)
10856 }
10857 }
10858
10859 pub fn toggle_fold_recursive(
10860 &mut self,
10861 _: &actions::ToggleFoldRecursive,
10862 cx: &mut ViewContext<Self>,
10863 ) {
10864 let selection = self.selections.newest::<Point>(cx);
10865
10866 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10867 let range = if selection.is_empty() {
10868 let point = selection.head().to_display_point(&display_map);
10869 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10870 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10871 .to_point(&display_map);
10872 start..end
10873 } else {
10874 selection.range()
10875 };
10876 if display_map.folds_in_range(range).next().is_some() {
10877 self.unfold_recursive(&Default::default(), cx)
10878 } else {
10879 self.fold_recursive(&Default::default(), cx)
10880 }
10881 }
10882
10883 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10884 let mut fold_ranges = Vec::new();
10885 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10886 let selections = self.selections.all_adjusted(cx);
10887
10888 for selection in selections {
10889 let range = selection.range().sorted();
10890 let buffer_start_row = range.start.row;
10891
10892 if range.start.row != range.end.row {
10893 let mut found = false;
10894 let mut row = range.start.row;
10895 while row <= range.end.row {
10896 if let Some((foldable_range, fold_text)) =
10897 { display_map.foldable_range(MultiBufferRow(row)) }
10898 {
10899 found = true;
10900 row = foldable_range.end.row + 1;
10901 fold_ranges.push((foldable_range, fold_text));
10902 } else {
10903 row += 1
10904 }
10905 }
10906 if found {
10907 continue;
10908 }
10909 }
10910
10911 for row in (0..=range.start.row).rev() {
10912 if let Some((foldable_range, fold_text)) =
10913 display_map.foldable_range(MultiBufferRow(row))
10914 {
10915 if foldable_range.end.row >= buffer_start_row {
10916 fold_ranges.push((foldable_range, fold_text));
10917 if row <= range.start.row {
10918 break;
10919 }
10920 }
10921 }
10922 }
10923 }
10924
10925 self.fold_ranges(fold_ranges, true, cx);
10926 }
10927
10928 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10929 let fold_at_level = fold_at.level;
10930 let snapshot = self.buffer.read(cx).snapshot(cx);
10931 let mut fold_ranges = Vec::new();
10932 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10933
10934 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10935 while start_row < end_row {
10936 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10937 Some(foldable_range) => {
10938 let nested_start_row = foldable_range.0.start.row + 1;
10939 let nested_end_row = foldable_range.0.end.row;
10940
10941 if current_level < fold_at_level {
10942 stack.push((nested_start_row, nested_end_row, current_level + 1));
10943 } else if current_level == fold_at_level {
10944 fold_ranges.push(foldable_range);
10945 }
10946
10947 start_row = nested_end_row + 1;
10948 }
10949 None => start_row += 1,
10950 }
10951 }
10952 }
10953
10954 self.fold_ranges(fold_ranges, true, cx);
10955 }
10956
10957 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10958 let mut fold_ranges = Vec::new();
10959 let snapshot = self.buffer.read(cx).snapshot(cx);
10960
10961 for row in 0..snapshot.max_buffer_row().0 {
10962 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10963 fold_ranges.push(foldable_range);
10964 }
10965 }
10966
10967 self.fold_ranges(fold_ranges, true, cx);
10968 }
10969
10970 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10971 let mut fold_ranges = Vec::new();
10972 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10973 let selections = self.selections.all_adjusted(cx);
10974
10975 for selection in selections {
10976 let range = selection.range().sorted();
10977 let buffer_start_row = range.start.row;
10978
10979 if range.start.row != range.end.row {
10980 let mut found = false;
10981 for row in range.start.row..=range.end.row {
10982 if let Some((foldable_range, fold_text)) =
10983 { display_map.foldable_range(MultiBufferRow(row)) }
10984 {
10985 found = true;
10986 fold_ranges.push((foldable_range, fold_text));
10987 }
10988 }
10989 if found {
10990 continue;
10991 }
10992 }
10993
10994 for row in (0..=range.start.row).rev() {
10995 if let Some((foldable_range, fold_text)) =
10996 display_map.foldable_range(MultiBufferRow(row))
10997 {
10998 if foldable_range.end.row >= buffer_start_row {
10999 fold_ranges.push((foldable_range, fold_text));
11000 } else {
11001 break;
11002 }
11003 }
11004 }
11005 }
11006
11007 self.fold_ranges(fold_ranges, true, cx);
11008 }
11009
11010 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11011 let buffer_row = fold_at.buffer_row;
11012 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11013
11014 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
11015 let autoscroll = self
11016 .selections
11017 .all::<Point>(cx)
11018 .iter()
11019 .any(|selection| fold_range.overlaps(&selection.range()));
11020
11021 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
11022 }
11023 }
11024
11025 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11026 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11027 let buffer = &display_map.buffer_snapshot;
11028 let selections = self.selections.all::<Point>(cx);
11029 let ranges = selections
11030 .iter()
11031 .map(|s| {
11032 let range = s.display_range(&display_map).sorted();
11033 let mut start = range.start.to_point(&display_map);
11034 let mut end = range.end.to_point(&display_map);
11035 start.column = 0;
11036 end.column = buffer.line_len(MultiBufferRow(end.row));
11037 start..end
11038 })
11039 .collect::<Vec<_>>();
11040
11041 self.unfold_ranges(&ranges, true, true, cx);
11042 }
11043
11044 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11045 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11046 let selections = self.selections.all::<Point>(cx);
11047 let ranges = selections
11048 .iter()
11049 .map(|s| {
11050 let mut range = s.display_range(&display_map).sorted();
11051 *range.start.column_mut() = 0;
11052 *range.end.column_mut() = display_map.line_len(range.end.row());
11053 let start = range.start.to_point(&display_map);
11054 let end = range.end.to_point(&display_map);
11055 start..end
11056 })
11057 .collect::<Vec<_>>();
11058
11059 self.unfold_ranges(&ranges, true, true, cx);
11060 }
11061
11062 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11063 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11064
11065 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11066 ..Point::new(
11067 unfold_at.buffer_row.0,
11068 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11069 );
11070
11071 let autoscroll = self
11072 .selections
11073 .all::<Point>(cx)
11074 .iter()
11075 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11076
11077 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11078 }
11079
11080 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11081 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11082 self.unfold_ranges(
11083 &[Point::zero()..display_map.max_point().to_point(&display_map)],
11084 true,
11085 true,
11086 cx,
11087 );
11088 }
11089
11090 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11091 let selections = self.selections.all::<Point>(cx);
11092 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11093 let line_mode = self.selections.line_mode;
11094 let ranges = selections.into_iter().map(|s| {
11095 if line_mode {
11096 let start = Point::new(s.start.row, 0);
11097 let end = Point::new(
11098 s.end.row,
11099 display_map
11100 .buffer_snapshot
11101 .line_len(MultiBufferRow(s.end.row)),
11102 );
11103 (start..end, display_map.fold_placeholder.clone())
11104 } else {
11105 (s.start..s.end, display_map.fold_placeholder.clone())
11106 }
11107 });
11108 self.fold_ranges(ranges, true, cx);
11109 }
11110
11111 pub fn fold_ranges<T: ToOffset + Clone>(
11112 &mut self,
11113 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
11114 auto_scroll: bool,
11115 cx: &mut ViewContext<Self>,
11116 ) {
11117 let mut fold_ranges = Vec::new();
11118 let mut buffers_affected = HashMap::default();
11119 let multi_buffer = self.buffer().read(cx);
11120 for (fold_range, fold_text) in ranges {
11121 if let Some((_, buffer, _)) =
11122 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
11123 {
11124 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11125 };
11126 fold_ranges.push((fold_range, fold_text));
11127 }
11128
11129 let mut ranges = fold_ranges.into_iter().peekable();
11130 if ranges.peek().is_some() {
11131 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
11132
11133 if auto_scroll {
11134 self.request_autoscroll(Autoscroll::fit(), cx);
11135 }
11136
11137 for buffer in buffers_affected.into_values() {
11138 self.sync_expanded_diff_hunks(buffer, cx);
11139 }
11140
11141 cx.notify();
11142
11143 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11144 // Clear diagnostics block when folding a range that contains it.
11145 let snapshot = self.snapshot(cx);
11146 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11147 drop(snapshot);
11148 self.active_diagnostics = Some(active_diagnostics);
11149 self.dismiss_diagnostics(cx);
11150 } else {
11151 self.active_diagnostics = Some(active_diagnostics);
11152 }
11153 }
11154
11155 self.scrollbar_marker_state.dirty = true;
11156 }
11157 }
11158
11159 /// Removes any folds whose ranges intersect any of the given ranges.
11160 pub fn unfold_ranges<T: ToOffset + Clone>(
11161 &mut self,
11162 ranges: &[Range<T>],
11163 inclusive: bool,
11164 auto_scroll: bool,
11165 cx: &mut ViewContext<Self>,
11166 ) {
11167 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11168 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11169 });
11170 }
11171
11172 /// Removes any folds with the given ranges.
11173 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11174 &mut self,
11175 ranges: &[Range<T>],
11176 type_id: TypeId,
11177 auto_scroll: bool,
11178 cx: &mut ViewContext<Self>,
11179 ) {
11180 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11181 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11182 });
11183 }
11184
11185 fn remove_folds_with<T: ToOffset + Clone>(
11186 &mut self,
11187 ranges: &[Range<T>],
11188 auto_scroll: bool,
11189 cx: &mut ViewContext<Self>,
11190 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11191 ) {
11192 if ranges.is_empty() {
11193 return;
11194 }
11195
11196 let mut buffers_affected = HashMap::default();
11197 let multi_buffer = self.buffer().read(cx);
11198 for range in ranges {
11199 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11200 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11201 };
11202 }
11203
11204 self.display_map.update(cx, update);
11205 if auto_scroll {
11206 self.request_autoscroll(Autoscroll::fit(), cx);
11207 }
11208
11209 for buffer in buffers_affected.into_values() {
11210 self.sync_expanded_diff_hunks(buffer, cx);
11211 }
11212
11213 cx.notify();
11214 self.scrollbar_marker_state.dirty = true;
11215 self.active_indent_guides_state.dirty = true;
11216 }
11217
11218 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11219 self.display_map.read(cx).fold_placeholder.clone()
11220 }
11221
11222 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11223 if hovered != self.gutter_hovered {
11224 self.gutter_hovered = hovered;
11225 cx.notify();
11226 }
11227 }
11228
11229 pub fn insert_blocks(
11230 &mut self,
11231 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11232 autoscroll: Option<Autoscroll>,
11233 cx: &mut ViewContext<Self>,
11234 ) -> Vec<CustomBlockId> {
11235 let blocks = self
11236 .display_map
11237 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11238 if let Some(autoscroll) = autoscroll {
11239 self.request_autoscroll(autoscroll, cx);
11240 }
11241 cx.notify();
11242 blocks
11243 }
11244
11245 pub fn resize_blocks(
11246 &mut self,
11247 heights: HashMap<CustomBlockId, u32>,
11248 autoscroll: Option<Autoscroll>,
11249 cx: &mut ViewContext<Self>,
11250 ) {
11251 self.display_map
11252 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11253 if let Some(autoscroll) = autoscroll {
11254 self.request_autoscroll(autoscroll, cx);
11255 }
11256 cx.notify();
11257 }
11258
11259 pub fn replace_blocks(
11260 &mut self,
11261 renderers: HashMap<CustomBlockId, RenderBlock>,
11262 autoscroll: Option<Autoscroll>,
11263 cx: &mut ViewContext<Self>,
11264 ) {
11265 self.display_map
11266 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11267 if let Some(autoscroll) = autoscroll {
11268 self.request_autoscroll(autoscroll, cx);
11269 }
11270 cx.notify();
11271 }
11272
11273 pub fn remove_blocks(
11274 &mut self,
11275 block_ids: HashSet<CustomBlockId>,
11276 autoscroll: Option<Autoscroll>,
11277 cx: &mut ViewContext<Self>,
11278 ) {
11279 self.display_map.update(cx, |display_map, cx| {
11280 display_map.remove_blocks(block_ids, cx)
11281 });
11282 if let Some(autoscroll) = autoscroll {
11283 self.request_autoscroll(autoscroll, cx);
11284 }
11285 cx.notify();
11286 }
11287
11288 pub fn row_for_block(
11289 &self,
11290 block_id: CustomBlockId,
11291 cx: &mut ViewContext<Self>,
11292 ) -> Option<DisplayRow> {
11293 self.display_map
11294 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11295 }
11296
11297 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11298 self.focused_block = Some(focused_block);
11299 }
11300
11301 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11302 self.focused_block.take()
11303 }
11304
11305 pub fn insert_creases(
11306 &mut self,
11307 creases: impl IntoIterator<Item = Crease>,
11308 cx: &mut ViewContext<Self>,
11309 ) -> Vec<CreaseId> {
11310 self.display_map
11311 .update(cx, |map, cx| map.insert_creases(creases, cx))
11312 }
11313
11314 pub fn remove_creases(
11315 &mut self,
11316 ids: impl IntoIterator<Item = CreaseId>,
11317 cx: &mut ViewContext<Self>,
11318 ) {
11319 self.display_map
11320 .update(cx, |map, cx| map.remove_creases(ids, cx));
11321 }
11322
11323 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11324 self.display_map
11325 .update(cx, |map, cx| map.snapshot(cx))
11326 .longest_row()
11327 }
11328
11329 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11330 self.display_map
11331 .update(cx, |map, cx| map.snapshot(cx))
11332 .max_point()
11333 }
11334
11335 pub fn text(&self, cx: &AppContext) -> String {
11336 self.buffer.read(cx).read(cx).text()
11337 }
11338
11339 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11340 let text = self.text(cx);
11341 let text = text.trim();
11342
11343 if text.is_empty() {
11344 return None;
11345 }
11346
11347 Some(text.to_string())
11348 }
11349
11350 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11351 self.transact(cx, |this, cx| {
11352 this.buffer
11353 .read(cx)
11354 .as_singleton()
11355 .expect("you can only call set_text on editors for singleton buffers")
11356 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11357 });
11358 }
11359
11360 pub fn display_text(&self, cx: &mut AppContext) -> String {
11361 self.display_map
11362 .update(cx, |map, cx| map.snapshot(cx))
11363 .text()
11364 }
11365
11366 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11367 let mut wrap_guides = smallvec::smallvec![];
11368
11369 if self.show_wrap_guides == Some(false) {
11370 return wrap_guides;
11371 }
11372
11373 let settings = self.buffer.read(cx).settings_at(0, cx);
11374 if settings.show_wrap_guides {
11375 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11376 wrap_guides.push((soft_wrap as usize, true));
11377 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11378 wrap_guides.push((soft_wrap as usize, true));
11379 }
11380 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11381 }
11382
11383 wrap_guides
11384 }
11385
11386 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11387 let settings = self.buffer.read(cx).settings_at(0, cx);
11388 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11389 match mode {
11390 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11391 SoftWrap::None
11392 }
11393 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11394 language_settings::SoftWrap::PreferredLineLength => {
11395 SoftWrap::Column(settings.preferred_line_length)
11396 }
11397 language_settings::SoftWrap::Bounded => {
11398 SoftWrap::Bounded(settings.preferred_line_length)
11399 }
11400 }
11401 }
11402
11403 pub fn set_soft_wrap_mode(
11404 &mut self,
11405 mode: language_settings::SoftWrap,
11406 cx: &mut ViewContext<Self>,
11407 ) {
11408 self.soft_wrap_mode_override = Some(mode);
11409 cx.notify();
11410 }
11411
11412 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11413 self.text_style_refinement = Some(style);
11414 }
11415
11416 /// called by the Element so we know what style we were most recently rendered with.
11417 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11418 let rem_size = cx.rem_size();
11419 self.display_map.update(cx, |map, cx| {
11420 map.set_font(
11421 style.text.font(),
11422 style.text.font_size.to_pixels(rem_size),
11423 cx,
11424 )
11425 });
11426 self.style = Some(style);
11427 }
11428
11429 pub fn style(&self) -> Option<&EditorStyle> {
11430 self.style.as_ref()
11431 }
11432
11433 // Called by the element. This method is not designed to be called outside of the editor
11434 // element's layout code because it does not notify when rewrapping is computed synchronously.
11435 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11436 self.display_map
11437 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11438 }
11439
11440 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11441 if self.soft_wrap_mode_override.is_some() {
11442 self.soft_wrap_mode_override.take();
11443 } else {
11444 let soft_wrap = match self.soft_wrap_mode(cx) {
11445 SoftWrap::GitDiff => return,
11446 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11447 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11448 language_settings::SoftWrap::None
11449 }
11450 };
11451 self.soft_wrap_mode_override = Some(soft_wrap);
11452 }
11453 cx.notify();
11454 }
11455
11456 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11457 let Some(workspace) = self.workspace() else {
11458 return;
11459 };
11460 let fs = workspace.read(cx).app_state().fs.clone();
11461 let current_show = TabBarSettings::get_global(cx).show;
11462 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11463 setting.show = Some(!current_show);
11464 });
11465 }
11466
11467 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11468 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11469 self.buffer
11470 .read(cx)
11471 .settings_at(0, cx)
11472 .indent_guides
11473 .enabled
11474 });
11475 self.show_indent_guides = Some(!currently_enabled);
11476 cx.notify();
11477 }
11478
11479 fn should_show_indent_guides(&self) -> Option<bool> {
11480 self.show_indent_guides
11481 }
11482
11483 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11484 let mut editor_settings = EditorSettings::get_global(cx).clone();
11485 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11486 EditorSettings::override_global(editor_settings, cx);
11487 }
11488
11489 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11490 self.use_relative_line_numbers
11491 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11492 }
11493
11494 pub fn toggle_relative_line_numbers(
11495 &mut self,
11496 _: &ToggleRelativeLineNumbers,
11497 cx: &mut ViewContext<Self>,
11498 ) {
11499 let is_relative = self.should_use_relative_line_numbers(cx);
11500 self.set_relative_line_number(Some(!is_relative), cx)
11501 }
11502
11503 pub fn set_relative_line_number(
11504 &mut self,
11505 is_relative: Option<bool>,
11506 cx: &mut ViewContext<Self>,
11507 ) {
11508 self.use_relative_line_numbers = is_relative;
11509 cx.notify();
11510 }
11511
11512 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11513 self.show_gutter = show_gutter;
11514 cx.notify();
11515 }
11516
11517 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11518 self.show_line_numbers = Some(show_line_numbers);
11519 cx.notify();
11520 }
11521
11522 pub fn set_show_git_diff_gutter(
11523 &mut self,
11524 show_git_diff_gutter: bool,
11525 cx: &mut ViewContext<Self>,
11526 ) {
11527 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11528 cx.notify();
11529 }
11530
11531 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11532 self.show_code_actions = Some(show_code_actions);
11533 cx.notify();
11534 }
11535
11536 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11537 self.show_runnables = Some(show_runnables);
11538 cx.notify();
11539 }
11540
11541 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11542 if self.display_map.read(cx).masked != masked {
11543 self.display_map.update(cx, |map, _| map.masked = masked);
11544 }
11545 cx.notify()
11546 }
11547
11548 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11549 self.show_wrap_guides = Some(show_wrap_guides);
11550 cx.notify();
11551 }
11552
11553 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11554 self.show_indent_guides = Some(show_indent_guides);
11555 cx.notify();
11556 }
11557
11558 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11559 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11560 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11561 if let Some(dir) = file.abs_path(cx).parent() {
11562 return Some(dir.to_owned());
11563 }
11564 }
11565
11566 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11567 return Some(project_path.path.to_path_buf());
11568 }
11569 }
11570
11571 None
11572 }
11573
11574 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11575 self.active_excerpt(cx)?
11576 .1
11577 .read(cx)
11578 .file()
11579 .and_then(|f| f.as_local())
11580 }
11581
11582 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11583 if let Some(target) = self.target_file(cx) {
11584 cx.reveal_path(&target.abs_path(cx));
11585 }
11586 }
11587
11588 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11589 if let Some(file) = self.target_file(cx) {
11590 if let Some(path) = file.abs_path(cx).to_str() {
11591 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11592 }
11593 }
11594 }
11595
11596 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11597 if let Some(file) = self.target_file(cx) {
11598 if let Some(path) = file.path().to_str() {
11599 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11600 }
11601 }
11602 }
11603
11604 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11605 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11606
11607 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11608 self.start_git_blame(true, cx);
11609 }
11610
11611 cx.notify();
11612 }
11613
11614 pub fn toggle_git_blame_inline(
11615 &mut self,
11616 _: &ToggleGitBlameInline,
11617 cx: &mut ViewContext<Self>,
11618 ) {
11619 self.toggle_git_blame_inline_internal(true, cx);
11620 cx.notify();
11621 }
11622
11623 pub fn git_blame_inline_enabled(&self) -> bool {
11624 self.git_blame_inline_enabled
11625 }
11626
11627 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11628 self.show_selection_menu = self
11629 .show_selection_menu
11630 .map(|show_selections_menu| !show_selections_menu)
11631 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11632
11633 cx.notify();
11634 }
11635
11636 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11637 self.show_selection_menu
11638 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11639 }
11640
11641 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11642 if let Some(project) = self.project.as_ref() {
11643 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11644 return;
11645 };
11646
11647 if buffer.read(cx).file().is_none() {
11648 return;
11649 }
11650
11651 let focused = self.focus_handle(cx).contains_focused(cx);
11652
11653 let project = project.clone();
11654 let blame =
11655 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11656 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11657 self.blame = Some(blame);
11658 }
11659 }
11660
11661 fn toggle_git_blame_inline_internal(
11662 &mut self,
11663 user_triggered: bool,
11664 cx: &mut ViewContext<Self>,
11665 ) {
11666 if self.git_blame_inline_enabled {
11667 self.git_blame_inline_enabled = false;
11668 self.show_git_blame_inline = false;
11669 self.show_git_blame_inline_delay_task.take();
11670 } else {
11671 self.git_blame_inline_enabled = true;
11672 self.start_git_blame_inline(user_triggered, cx);
11673 }
11674
11675 cx.notify();
11676 }
11677
11678 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11679 self.start_git_blame(user_triggered, cx);
11680
11681 if ProjectSettings::get_global(cx)
11682 .git
11683 .inline_blame_delay()
11684 .is_some()
11685 {
11686 self.start_inline_blame_timer(cx);
11687 } else {
11688 self.show_git_blame_inline = true
11689 }
11690 }
11691
11692 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11693 self.blame.as_ref()
11694 }
11695
11696 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11697 self.show_git_blame_gutter && self.has_blame_entries(cx)
11698 }
11699
11700 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11701 self.show_git_blame_inline
11702 && self.focus_handle.is_focused(cx)
11703 && !self.newest_selection_head_on_empty_line(cx)
11704 && self.has_blame_entries(cx)
11705 }
11706
11707 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11708 self.blame()
11709 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11710 }
11711
11712 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11713 let cursor_anchor = self.selections.newest_anchor().head();
11714
11715 let snapshot = self.buffer.read(cx).snapshot(cx);
11716 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11717
11718 snapshot.line_len(buffer_row) == 0
11719 }
11720
11721 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11722 let buffer_and_selection = maybe!({
11723 let selection = self.selections.newest::<Point>(cx);
11724 let selection_range = selection.range();
11725
11726 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11727 (buffer, selection_range.start.row..selection_range.end.row)
11728 } else {
11729 let buffer_ranges = self
11730 .buffer()
11731 .read(cx)
11732 .range_to_buffer_ranges(selection_range, cx);
11733
11734 let (buffer, range, _) = if selection.reversed {
11735 buffer_ranges.first()
11736 } else {
11737 buffer_ranges.last()
11738 }?;
11739
11740 let snapshot = buffer.read(cx).snapshot();
11741 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11742 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11743 (buffer.clone(), selection)
11744 };
11745
11746 Some((buffer, selection))
11747 });
11748
11749 let Some((buffer, selection)) = buffer_and_selection else {
11750 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11751 };
11752
11753 let Some(project) = self.project.as_ref() else {
11754 return Task::ready(Err(anyhow!("editor does not have project")));
11755 };
11756
11757 project.update(cx, |project, cx| {
11758 project.get_permalink_to_line(&buffer, selection, cx)
11759 })
11760 }
11761
11762 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11763 let permalink_task = self.get_permalink_to_line(cx);
11764 let workspace = self.workspace();
11765
11766 cx.spawn(|_, mut cx| async move {
11767 match permalink_task.await {
11768 Ok(permalink) => {
11769 cx.update(|cx| {
11770 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11771 })
11772 .ok();
11773 }
11774 Err(err) => {
11775 let message = format!("Failed to copy permalink: {err}");
11776
11777 Err::<(), anyhow::Error>(err).log_err();
11778
11779 if let Some(workspace) = workspace {
11780 workspace
11781 .update(&mut cx, |workspace, cx| {
11782 struct CopyPermalinkToLine;
11783
11784 workspace.show_toast(
11785 Toast::new(
11786 NotificationId::unique::<CopyPermalinkToLine>(),
11787 message,
11788 ),
11789 cx,
11790 )
11791 })
11792 .ok();
11793 }
11794 }
11795 }
11796 })
11797 .detach();
11798 }
11799
11800 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11801 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11802 if let Some(file) = self.target_file(cx) {
11803 if let Some(path) = file.path().to_str() {
11804 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11805 }
11806 }
11807 }
11808
11809 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11810 let permalink_task = self.get_permalink_to_line(cx);
11811 let workspace = self.workspace();
11812
11813 cx.spawn(|_, mut cx| async move {
11814 match permalink_task.await {
11815 Ok(permalink) => {
11816 cx.update(|cx| {
11817 cx.open_url(permalink.as_ref());
11818 })
11819 .ok();
11820 }
11821 Err(err) => {
11822 let message = format!("Failed to open permalink: {err}");
11823
11824 Err::<(), anyhow::Error>(err).log_err();
11825
11826 if let Some(workspace) = workspace {
11827 workspace
11828 .update(&mut cx, |workspace, cx| {
11829 struct OpenPermalinkToLine;
11830
11831 workspace.show_toast(
11832 Toast::new(
11833 NotificationId::unique::<OpenPermalinkToLine>(),
11834 message,
11835 ),
11836 cx,
11837 )
11838 })
11839 .ok();
11840 }
11841 }
11842 }
11843 })
11844 .detach();
11845 }
11846
11847 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11848 /// last highlight added will be used.
11849 ///
11850 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11851 pub fn highlight_rows<T: 'static>(
11852 &mut self,
11853 range: Range<Anchor>,
11854 color: Hsla,
11855 should_autoscroll: bool,
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 ix = row_highlights.binary_search_by(|highlight| {
11861 Ordering::Equal
11862 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11863 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11864 });
11865
11866 if let Err(mut ix) = ix {
11867 let index = post_inc(&mut self.highlight_order);
11868
11869 // If this range intersects with the preceding highlight, then merge it with
11870 // the preceding highlight. Otherwise insert a new highlight.
11871 let mut merged = false;
11872 if ix > 0 {
11873 let prev_highlight = &mut row_highlights[ix - 1];
11874 if prev_highlight
11875 .range
11876 .end
11877 .cmp(&range.start, &snapshot)
11878 .is_ge()
11879 {
11880 ix -= 1;
11881 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11882 prev_highlight.range.end = range.end;
11883 }
11884 merged = true;
11885 prev_highlight.index = index;
11886 prev_highlight.color = color;
11887 prev_highlight.should_autoscroll = should_autoscroll;
11888 }
11889 }
11890
11891 if !merged {
11892 row_highlights.insert(
11893 ix,
11894 RowHighlight {
11895 range: range.clone(),
11896 index,
11897 color,
11898 should_autoscroll,
11899 },
11900 );
11901 }
11902
11903 // If any of the following highlights intersect with this one, merge them.
11904 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11905 let highlight = &row_highlights[ix];
11906 if next_highlight
11907 .range
11908 .start
11909 .cmp(&highlight.range.end, &snapshot)
11910 .is_le()
11911 {
11912 if next_highlight
11913 .range
11914 .end
11915 .cmp(&highlight.range.end, &snapshot)
11916 .is_gt()
11917 {
11918 row_highlights[ix].range.end = next_highlight.range.end;
11919 }
11920 row_highlights.remove(ix + 1);
11921 } else {
11922 break;
11923 }
11924 }
11925 }
11926 }
11927
11928 /// Remove any highlighted row ranges of the given type that intersect the
11929 /// given ranges.
11930 pub fn remove_highlighted_rows<T: 'static>(
11931 &mut self,
11932 ranges_to_remove: Vec<Range<Anchor>>,
11933 cx: &mut ViewContext<Self>,
11934 ) {
11935 let snapshot = self.buffer().read(cx).snapshot(cx);
11936 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11937 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11938 row_highlights.retain(|highlight| {
11939 while let Some(range_to_remove) = ranges_to_remove.peek() {
11940 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11941 Ordering::Less | Ordering::Equal => {
11942 ranges_to_remove.next();
11943 }
11944 Ordering::Greater => {
11945 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11946 Ordering::Less | Ordering::Equal => {
11947 return false;
11948 }
11949 Ordering::Greater => break,
11950 }
11951 }
11952 }
11953 }
11954
11955 true
11956 })
11957 }
11958
11959 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11960 pub fn clear_row_highlights<T: 'static>(&mut self) {
11961 self.highlighted_rows.remove(&TypeId::of::<T>());
11962 }
11963
11964 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11965 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11966 self.highlighted_rows
11967 .get(&TypeId::of::<T>())
11968 .map_or(&[] as &[_], |vec| vec.as_slice())
11969 .iter()
11970 .map(|highlight| (highlight.range.clone(), highlight.color))
11971 }
11972
11973 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11974 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11975 /// Allows to ignore certain kinds of highlights.
11976 pub fn highlighted_display_rows(
11977 &mut self,
11978 cx: &mut WindowContext,
11979 ) -> BTreeMap<DisplayRow, Hsla> {
11980 let snapshot = self.snapshot(cx);
11981 let mut used_highlight_orders = HashMap::default();
11982 self.highlighted_rows
11983 .iter()
11984 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11985 .fold(
11986 BTreeMap::<DisplayRow, Hsla>::new(),
11987 |mut unique_rows, highlight| {
11988 let start = highlight.range.start.to_display_point(&snapshot);
11989 let end = highlight.range.end.to_display_point(&snapshot);
11990 let start_row = start.row().0;
11991 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11992 && end.column() == 0
11993 {
11994 end.row().0.saturating_sub(1)
11995 } else {
11996 end.row().0
11997 };
11998 for row in start_row..=end_row {
11999 let used_index =
12000 used_highlight_orders.entry(row).or_insert(highlight.index);
12001 if highlight.index >= *used_index {
12002 *used_index = highlight.index;
12003 unique_rows.insert(DisplayRow(row), highlight.color);
12004 }
12005 }
12006 unique_rows
12007 },
12008 )
12009 }
12010
12011 pub fn highlighted_display_row_for_autoscroll(
12012 &self,
12013 snapshot: &DisplaySnapshot,
12014 ) -> Option<DisplayRow> {
12015 self.highlighted_rows
12016 .values()
12017 .flat_map(|highlighted_rows| highlighted_rows.iter())
12018 .filter_map(|highlight| {
12019 if highlight.should_autoscroll {
12020 Some(highlight.range.start.to_display_point(snapshot).row())
12021 } else {
12022 None
12023 }
12024 })
12025 .min()
12026 }
12027
12028 pub fn set_search_within_ranges(
12029 &mut self,
12030 ranges: &[Range<Anchor>],
12031 cx: &mut ViewContext<Self>,
12032 ) {
12033 self.highlight_background::<SearchWithinRange>(
12034 ranges,
12035 |colors| colors.editor_document_highlight_read_background,
12036 cx,
12037 )
12038 }
12039
12040 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12041 self.breadcrumb_header = Some(new_header);
12042 }
12043
12044 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12045 self.clear_background_highlights::<SearchWithinRange>(cx);
12046 }
12047
12048 pub fn highlight_background<T: 'static>(
12049 &mut self,
12050 ranges: &[Range<Anchor>],
12051 color_fetcher: fn(&ThemeColors) -> Hsla,
12052 cx: &mut ViewContext<Self>,
12053 ) {
12054 self.background_highlights
12055 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12056 self.scrollbar_marker_state.dirty = true;
12057 cx.notify();
12058 }
12059
12060 pub fn clear_background_highlights<T: 'static>(
12061 &mut self,
12062 cx: &mut ViewContext<Self>,
12063 ) -> Option<BackgroundHighlight> {
12064 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12065 if !text_highlights.1.is_empty() {
12066 self.scrollbar_marker_state.dirty = true;
12067 cx.notify();
12068 }
12069 Some(text_highlights)
12070 }
12071
12072 pub fn highlight_gutter<T: 'static>(
12073 &mut self,
12074 ranges: &[Range<Anchor>],
12075 color_fetcher: fn(&AppContext) -> Hsla,
12076 cx: &mut ViewContext<Self>,
12077 ) {
12078 self.gutter_highlights
12079 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12080 cx.notify();
12081 }
12082
12083 pub fn clear_gutter_highlights<T: 'static>(
12084 &mut self,
12085 cx: &mut ViewContext<Self>,
12086 ) -> Option<GutterHighlight> {
12087 cx.notify();
12088 self.gutter_highlights.remove(&TypeId::of::<T>())
12089 }
12090
12091 #[cfg(feature = "test-support")]
12092 pub fn all_text_background_highlights(
12093 &mut self,
12094 cx: &mut ViewContext<Self>,
12095 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12096 let snapshot = self.snapshot(cx);
12097 let buffer = &snapshot.buffer_snapshot;
12098 let start = buffer.anchor_before(0);
12099 let end = buffer.anchor_after(buffer.len());
12100 let theme = cx.theme().colors();
12101 self.background_highlights_in_range(start..end, &snapshot, theme)
12102 }
12103
12104 #[cfg(feature = "test-support")]
12105 pub fn search_background_highlights(
12106 &mut self,
12107 cx: &mut ViewContext<Self>,
12108 ) -> Vec<Range<Point>> {
12109 let snapshot = self.buffer().read(cx).snapshot(cx);
12110
12111 let highlights = self
12112 .background_highlights
12113 .get(&TypeId::of::<items::BufferSearchHighlights>());
12114
12115 if let Some((_color, ranges)) = highlights {
12116 ranges
12117 .iter()
12118 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12119 .collect_vec()
12120 } else {
12121 vec![]
12122 }
12123 }
12124
12125 fn document_highlights_for_position<'a>(
12126 &'a self,
12127 position: Anchor,
12128 buffer: &'a MultiBufferSnapshot,
12129 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12130 let read_highlights = self
12131 .background_highlights
12132 .get(&TypeId::of::<DocumentHighlightRead>())
12133 .map(|h| &h.1);
12134 let write_highlights = self
12135 .background_highlights
12136 .get(&TypeId::of::<DocumentHighlightWrite>())
12137 .map(|h| &h.1);
12138 let left_position = position.bias_left(buffer);
12139 let right_position = position.bias_right(buffer);
12140 read_highlights
12141 .into_iter()
12142 .chain(write_highlights)
12143 .flat_map(move |ranges| {
12144 let start_ix = match ranges.binary_search_by(|probe| {
12145 let cmp = probe.end.cmp(&left_position, buffer);
12146 if cmp.is_ge() {
12147 Ordering::Greater
12148 } else {
12149 Ordering::Less
12150 }
12151 }) {
12152 Ok(i) | Err(i) => i,
12153 };
12154
12155 ranges[start_ix..]
12156 .iter()
12157 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12158 })
12159 }
12160
12161 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12162 self.background_highlights
12163 .get(&TypeId::of::<T>())
12164 .map_or(false, |(_, highlights)| !highlights.is_empty())
12165 }
12166
12167 pub fn background_highlights_in_range(
12168 &self,
12169 search_range: Range<Anchor>,
12170 display_snapshot: &DisplaySnapshot,
12171 theme: &ThemeColors,
12172 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12173 let mut results = Vec::new();
12174 for (color_fetcher, ranges) in self.background_highlights.values() {
12175 let color = color_fetcher(theme);
12176 let start_ix = match ranges.binary_search_by(|probe| {
12177 let cmp = probe
12178 .end
12179 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12180 if cmp.is_gt() {
12181 Ordering::Greater
12182 } else {
12183 Ordering::Less
12184 }
12185 }) {
12186 Ok(i) | Err(i) => i,
12187 };
12188 for range in &ranges[start_ix..] {
12189 if range
12190 .start
12191 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12192 .is_ge()
12193 {
12194 break;
12195 }
12196
12197 let start = range.start.to_display_point(display_snapshot);
12198 let end = range.end.to_display_point(display_snapshot);
12199 results.push((start..end, color))
12200 }
12201 }
12202 results
12203 }
12204
12205 pub fn background_highlight_row_ranges<T: 'static>(
12206 &self,
12207 search_range: Range<Anchor>,
12208 display_snapshot: &DisplaySnapshot,
12209 count: usize,
12210 ) -> Vec<RangeInclusive<DisplayPoint>> {
12211 let mut results = Vec::new();
12212 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12213 return vec![];
12214 };
12215
12216 let start_ix = match ranges.binary_search_by(|probe| {
12217 let cmp = probe
12218 .end
12219 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12220 if cmp.is_gt() {
12221 Ordering::Greater
12222 } else {
12223 Ordering::Less
12224 }
12225 }) {
12226 Ok(i) | Err(i) => i,
12227 };
12228 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12229 if let (Some(start_display), Some(end_display)) = (start, end) {
12230 results.push(
12231 start_display.to_display_point(display_snapshot)
12232 ..=end_display.to_display_point(display_snapshot),
12233 );
12234 }
12235 };
12236 let mut start_row: Option<Point> = None;
12237 let mut end_row: Option<Point> = None;
12238 if ranges.len() > count {
12239 return Vec::new();
12240 }
12241 for range in &ranges[start_ix..] {
12242 if range
12243 .start
12244 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12245 .is_ge()
12246 {
12247 break;
12248 }
12249 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12250 if let Some(current_row) = &end_row {
12251 if end.row == current_row.row {
12252 continue;
12253 }
12254 }
12255 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12256 if start_row.is_none() {
12257 assert_eq!(end_row, None);
12258 start_row = Some(start);
12259 end_row = Some(end);
12260 continue;
12261 }
12262 if let Some(current_end) = end_row.as_mut() {
12263 if start.row > current_end.row + 1 {
12264 push_region(start_row, end_row);
12265 start_row = Some(start);
12266 end_row = Some(end);
12267 } else {
12268 // Merge two hunks.
12269 *current_end = end;
12270 }
12271 } else {
12272 unreachable!();
12273 }
12274 }
12275 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12276 push_region(start_row, end_row);
12277 results
12278 }
12279
12280 pub fn gutter_highlights_in_range(
12281 &self,
12282 search_range: Range<Anchor>,
12283 display_snapshot: &DisplaySnapshot,
12284 cx: &AppContext,
12285 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12286 let mut results = Vec::new();
12287 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12288 let color = color_fetcher(cx);
12289 let start_ix = match ranges.binary_search_by(|probe| {
12290 let cmp = probe
12291 .end
12292 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12293 if cmp.is_gt() {
12294 Ordering::Greater
12295 } else {
12296 Ordering::Less
12297 }
12298 }) {
12299 Ok(i) | Err(i) => i,
12300 };
12301 for range in &ranges[start_ix..] {
12302 if range
12303 .start
12304 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12305 .is_ge()
12306 {
12307 break;
12308 }
12309
12310 let start = range.start.to_display_point(display_snapshot);
12311 let end = range.end.to_display_point(display_snapshot);
12312 results.push((start..end, color))
12313 }
12314 }
12315 results
12316 }
12317
12318 /// Get the text ranges corresponding to the redaction query
12319 pub fn redacted_ranges(
12320 &self,
12321 search_range: Range<Anchor>,
12322 display_snapshot: &DisplaySnapshot,
12323 cx: &WindowContext,
12324 ) -> Vec<Range<DisplayPoint>> {
12325 display_snapshot
12326 .buffer_snapshot
12327 .redacted_ranges(search_range, |file| {
12328 if let Some(file) = file {
12329 file.is_private()
12330 && EditorSettings::get(
12331 Some(SettingsLocation {
12332 worktree_id: file.worktree_id(cx),
12333 path: file.path().as_ref(),
12334 }),
12335 cx,
12336 )
12337 .redact_private_values
12338 } else {
12339 false
12340 }
12341 })
12342 .map(|range| {
12343 range.start.to_display_point(display_snapshot)
12344 ..range.end.to_display_point(display_snapshot)
12345 })
12346 .collect()
12347 }
12348
12349 pub fn highlight_text<T: 'static>(
12350 &mut self,
12351 ranges: Vec<Range<Anchor>>,
12352 style: HighlightStyle,
12353 cx: &mut ViewContext<Self>,
12354 ) {
12355 self.display_map.update(cx, |map, _| {
12356 map.highlight_text(TypeId::of::<T>(), ranges, style)
12357 });
12358 cx.notify();
12359 }
12360
12361 pub(crate) fn highlight_inlays<T: 'static>(
12362 &mut self,
12363 highlights: Vec<InlayHighlight>,
12364 style: HighlightStyle,
12365 cx: &mut ViewContext<Self>,
12366 ) {
12367 self.display_map.update(cx, |map, _| {
12368 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12369 });
12370 cx.notify();
12371 }
12372
12373 pub fn text_highlights<'a, T: 'static>(
12374 &'a self,
12375 cx: &'a AppContext,
12376 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12377 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12378 }
12379
12380 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12381 let cleared = self
12382 .display_map
12383 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12384 if cleared {
12385 cx.notify();
12386 }
12387 }
12388
12389 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12390 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12391 && self.focus_handle.is_focused(cx)
12392 }
12393
12394 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12395 self.show_cursor_when_unfocused = is_enabled;
12396 cx.notify();
12397 }
12398
12399 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12400 cx.notify();
12401 }
12402
12403 fn on_buffer_event(
12404 &mut self,
12405 multibuffer: Model<MultiBuffer>,
12406 event: &multi_buffer::Event,
12407 cx: &mut ViewContext<Self>,
12408 ) {
12409 match event {
12410 multi_buffer::Event::Edited {
12411 singleton_buffer_edited,
12412 } => {
12413 self.scrollbar_marker_state.dirty = true;
12414 self.active_indent_guides_state.dirty = true;
12415 self.refresh_active_diagnostics(cx);
12416 self.refresh_code_actions(cx);
12417 if self.has_active_inline_completion(cx) {
12418 self.update_visible_inline_completion(cx);
12419 }
12420 cx.emit(EditorEvent::BufferEdited);
12421 cx.emit(SearchEvent::MatchesInvalidated);
12422 if *singleton_buffer_edited {
12423 if let Some(project) = &self.project {
12424 let project = project.read(cx);
12425 #[allow(clippy::mutable_key_type)]
12426 let languages_affected = multibuffer
12427 .read(cx)
12428 .all_buffers()
12429 .into_iter()
12430 .filter_map(|buffer| {
12431 let buffer = buffer.read(cx);
12432 let language = buffer.language()?;
12433 if project.is_local()
12434 && project.language_servers_for_buffer(buffer, cx).count() == 0
12435 {
12436 None
12437 } else {
12438 Some(language)
12439 }
12440 })
12441 .cloned()
12442 .collect::<HashSet<_>>();
12443 if !languages_affected.is_empty() {
12444 self.refresh_inlay_hints(
12445 InlayHintRefreshReason::BufferEdited(languages_affected),
12446 cx,
12447 );
12448 }
12449 }
12450 }
12451
12452 let Some(project) = &self.project else { return };
12453 let (telemetry, is_via_ssh) = {
12454 let project = project.read(cx);
12455 let telemetry = project.client().telemetry().clone();
12456 let is_via_ssh = project.is_via_ssh();
12457 (telemetry, is_via_ssh)
12458 };
12459 refresh_linked_ranges(self, cx);
12460 telemetry.log_edit_event("editor", is_via_ssh);
12461 }
12462 multi_buffer::Event::ExcerptsAdded {
12463 buffer,
12464 predecessor,
12465 excerpts,
12466 } => {
12467 self.tasks_update_task = Some(self.refresh_runnables(cx));
12468 cx.emit(EditorEvent::ExcerptsAdded {
12469 buffer: buffer.clone(),
12470 predecessor: *predecessor,
12471 excerpts: excerpts.clone(),
12472 });
12473 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12474 }
12475 multi_buffer::Event::ExcerptsRemoved { ids } => {
12476 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12477 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12478 }
12479 multi_buffer::Event::ExcerptsEdited { ids } => {
12480 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12481 }
12482 multi_buffer::Event::ExcerptsExpanded { ids } => {
12483 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12484 }
12485 multi_buffer::Event::Reparsed(buffer_id) => {
12486 self.tasks_update_task = Some(self.refresh_runnables(cx));
12487
12488 cx.emit(EditorEvent::Reparsed(*buffer_id));
12489 }
12490 multi_buffer::Event::LanguageChanged(buffer_id) => {
12491 linked_editing_ranges::refresh_linked_ranges(self, cx);
12492 cx.emit(EditorEvent::Reparsed(*buffer_id));
12493 cx.notify();
12494 }
12495 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12496 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12497 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12498 cx.emit(EditorEvent::TitleChanged)
12499 }
12500 multi_buffer::Event::DiffBaseChanged => {
12501 self.scrollbar_marker_state.dirty = true;
12502 cx.emit(EditorEvent::DiffBaseChanged);
12503 cx.notify();
12504 }
12505 multi_buffer::Event::DiffUpdated { buffer } => {
12506 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12507 cx.notify();
12508 }
12509 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12510 multi_buffer::Event::DiagnosticsUpdated => {
12511 self.refresh_active_diagnostics(cx);
12512 self.scrollbar_marker_state.dirty = true;
12513 cx.notify();
12514 }
12515 _ => {}
12516 };
12517 }
12518
12519 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12520 cx.notify();
12521 }
12522
12523 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12524 self.tasks_update_task = Some(self.refresh_runnables(cx));
12525 self.refresh_inline_completion(true, false, cx);
12526 self.refresh_inlay_hints(
12527 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12528 self.selections.newest_anchor().head(),
12529 &self.buffer.read(cx).snapshot(cx),
12530 cx,
12531 )),
12532 cx,
12533 );
12534
12535 let old_cursor_shape = self.cursor_shape;
12536
12537 {
12538 let editor_settings = EditorSettings::get_global(cx);
12539 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12540 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12541 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12542 }
12543
12544 if old_cursor_shape != self.cursor_shape {
12545 cx.emit(EditorEvent::CursorShapeChanged);
12546 }
12547
12548 let project_settings = ProjectSettings::get_global(cx);
12549 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12550
12551 if self.mode == EditorMode::Full {
12552 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12553 if self.git_blame_inline_enabled != inline_blame_enabled {
12554 self.toggle_git_blame_inline_internal(false, cx);
12555 }
12556 }
12557
12558 cx.notify();
12559 }
12560
12561 pub fn set_searchable(&mut self, searchable: bool) {
12562 self.searchable = searchable;
12563 }
12564
12565 pub fn searchable(&self) -> bool {
12566 self.searchable
12567 }
12568
12569 fn open_proposed_changes_editor(
12570 &mut self,
12571 _: &OpenProposedChangesEditor,
12572 cx: &mut ViewContext<Self>,
12573 ) {
12574 let Some(workspace) = self.workspace() else {
12575 cx.propagate();
12576 return;
12577 };
12578
12579 let selections = self.selections.all::<usize>(cx);
12580 let buffer = self.buffer.read(cx);
12581 let mut new_selections_by_buffer = HashMap::default();
12582 for selection in selections {
12583 for (buffer, range, _) in
12584 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12585 {
12586 let mut range = range.to_point(buffer.read(cx));
12587 range.start.column = 0;
12588 range.end.column = buffer.read(cx).line_len(range.end.row);
12589 new_selections_by_buffer
12590 .entry(buffer)
12591 .or_insert(Vec::new())
12592 .push(range)
12593 }
12594 }
12595
12596 let proposed_changes_buffers = new_selections_by_buffer
12597 .into_iter()
12598 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12599 .collect::<Vec<_>>();
12600 let proposed_changes_editor = cx.new_view(|cx| {
12601 ProposedChangesEditor::new(
12602 "Proposed changes",
12603 proposed_changes_buffers,
12604 self.project.clone(),
12605 cx,
12606 )
12607 });
12608
12609 cx.window_context().defer(move |cx| {
12610 workspace.update(cx, |workspace, cx| {
12611 workspace.active_pane().update(cx, |pane, cx| {
12612 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12613 });
12614 });
12615 });
12616 }
12617
12618 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12619 self.open_excerpts_common(None, true, cx)
12620 }
12621
12622 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12623 self.open_excerpts_common(None, false, cx)
12624 }
12625
12626 fn open_excerpts_common(
12627 &mut self,
12628 jump_data: Option<JumpData>,
12629 split: bool,
12630 cx: &mut ViewContext<Self>,
12631 ) {
12632 let Some(workspace) = self.workspace() else {
12633 cx.propagate();
12634 return;
12635 };
12636
12637 if self.buffer.read(cx).is_singleton() {
12638 cx.propagate();
12639 return;
12640 }
12641
12642 let mut new_selections_by_buffer = HashMap::default();
12643 match &jump_data {
12644 Some(jump_data) => {
12645 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12646 if let Some(buffer) = multi_buffer_snapshot
12647 .buffer_id_for_excerpt(jump_data.excerpt_id)
12648 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12649 {
12650 let buffer_snapshot = buffer.read(cx).snapshot();
12651 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12652 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12653 } else {
12654 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12655 };
12656 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12657 new_selections_by_buffer.insert(
12658 buffer,
12659 (
12660 vec![jump_to_offset..jump_to_offset],
12661 Some(jump_data.line_offset_from_top),
12662 ),
12663 );
12664 }
12665 }
12666 None => {
12667 let selections = self.selections.all::<usize>(cx);
12668 let buffer = self.buffer.read(cx);
12669 for selection in selections {
12670 for (mut buffer_handle, mut range, _) in
12671 buffer.range_to_buffer_ranges(selection.range(), cx)
12672 {
12673 // When editing branch buffers, jump to the corresponding location
12674 // in their base buffer.
12675 let buffer = buffer_handle.read(cx);
12676 if let Some(base_buffer) = buffer.diff_base_buffer() {
12677 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12678 buffer_handle = base_buffer;
12679 }
12680
12681 if selection.reversed {
12682 mem::swap(&mut range.start, &mut range.end);
12683 }
12684 new_selections_by_buffer
12685 .entry(buffer_handle)
12686 .or_insert((Vec::new(), None))
12687 .0
12688 .push(range)
12689 }
12690 }
12691 }
12692 }
12693
12694 if new_selections_by_buffer.is_empty() {
12695 return;
12696 }
12697
12698 // We defer the pane interaction because we ourselves are a workspace item
12699 // and activating a new item causes the pane to call a method on us reentrantly,
12700 // which panics if we're on the stack.
12701 cx.window_context().defer(move |cx| {
12702 workspace.update(cx, |workspace, cx| {
12703 let pane = if split {
12704 workspace.adjacent_pane(cx)
12705 } else {
12706 workspace.active_pane().clone()
12707 };
12708
12709 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12710 let editor =
12711 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12712 editor.update(cx, |editor, cx| {
12713 let autoscroll = match scroll_offset {
12714 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12715 None => Autoscroll::newest(),
12716 };
12717 let nav_history = editor.nav_history.take();
12718 editor.change_selections(Some(autoscroll), cx, |s| {
12719 s.select_ranges(ranges);
12720 });
12721 editor.nav_history = nav_history;
12722 });
12723 }
12724 })
12725 });
12726 }
12727
12728 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12729 let snapshot = self.buffer.read(cx).read(cx);
12730 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12731 Some(
12732 ranges
12733 .iter()
12734 .map(move |range| {
12735 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12736 })
12737 .collect(),
12738 )
12739 }
12740
12741 fn selection_replacement_ranges(
12742 &self,
12743 range: Range<OffsetUtf16>,
12744 cx: &mut AppContext,
12745 ) -> Vec<Range<OffsetUtf16>> {
12746 let selections = self.selections.all::<OffsetUtf16>(cx);
12747 let newest_selection = selections
12748 .iter()
12749 .max_by_key(|selection| selection.id)
12750 .unwrap();
12751 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12752 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12753 let snapshot = self.buffer.read(cx).read(cx);
12754 selections
12755 .into_iter()
12756 .map(|mut selection| {
12757 selection.start.0 =
12758 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12759 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12760 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12761 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12762 })
12763 .collect()
12764 }
12765
12766 fn report_editor_event(
12767 &self,
12768 operation: &'static str,
12769 file_extension: Option<String>,
12770 cx: &AppContext,
12771 ) {
12772 if cfg!(any(test, feature = "test-support")) {
12773 return;
12774 }
12775
12776 let Some(project) = &self.project else { return };
12777
12778 // If None, we are in a file without an extension
12779 let file = self
12780 .buffer
12781 .read(cx)
12782 .as_singleton()
12783 .and_then(|b| b.read(cx).file());
12784 let file_extension = file_extension.or(file
12785 .as_ref()
12786 .and_then(|file| Path::new(file.file_name(cx)).extension())
12787 .and_then(|e| e.to_str())
12788 .map(|a| a.to_string()));
12789
12790 let vim_mode = cx
12791 .global::<SettingsStore>()
12792 .raw_user_settings()
12793 .get("vim_mode")
12794 == Some(&serde_json::Value::Bool(true));
12795
12796 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12797 == language::language_settings::InlineCompletionProvider::Copilot;
12798 let copilot_enabled_for_language = self
12799 .buffer
12800 .read(cx)
12801 .settings_at(0, cx)
12802 .show_inline_completions;
12803
12804 let project = project.read(cx);
12805 let telemetry = project.client().telemetry().clone();
12806 telemetry.report_editor_event(
12807 file_extension,
12808 vim_mode,
12809 operation,
12810 copilot_enabled,
12811 copilot_enabled_for_language,
12812 project.is_via_ssh(),
12813 )
12814 }
12815
12816 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12817 /// with each line being an array of {text, highlight} objects.
12818 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12819 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12820 return;
12821 };
12822
12823 #[derive(Serialize)]
12824 struct Chunk<'a> {
12825 text: String,
12826 highlight: Option<&'a str>,
12827 }
12828
12829 let snapshot = buffer.read(cx).snapshot();
12830 let range = self
12831 .selected_text_range(false, cx)
12832 .and_then(|selection| {
12833 if selection.range.is_empty() {
12834 None
12835 } else {
12836 Some(selection.range)
12837 }
12838 })
12839 .unwrap_or_else(|| 0..snapshot.len());
12840
12841 let chunks = snapshot.chunks(range, true);
12842 let mut lines = Vec::new();
12843 let mut line: VecDeque<Chunk> = VecDeque::new();
12844
12845 let Some(style) = self.style.as_ref() else {
12846 return;
12847 };
12848
12849 for chunk in chunks {
12850 let highlight = chunk
12851 .syntax_highlight_id
12852 .and_then(|id| id.name(&style.syntax));
12853 let mut chunk_lines = chunk.text.split('\n').peekable();
12854 while let Some(text) = chunk_lines.next() {
12855 let mut merged_with_last_token = false;
12856 if let Some(last_token) = line.back_mut() {
12857 if last_token.highlight == highlight {
12858 last_token.text.push_str(text);
12859 merged_with_last_token = true;
12860 }
12861 }
12862
12863 if !merged_with_last_token {
12864 line.push_back(Chunk {
12865 text: text.into(),
12866 highlight,
12867 });
12868 }
12869
12870 if chunk_lines.peek().is_some() {
12871 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12872 line.pop_front();
12873 }
12874 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12875 line.pop_back();
12876 }
12877
12878 lines.push(mem::take(&mut line));
12879 }
12880 }
12881 }
12882
12883 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12884 return;
12885 };
12886 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12887 }
12888
12889 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12890 &self.inlay_hint_cache
12891 }
12892
12893 pub fn replay_insert_event(
12894 &mut self,
12895 text: &str,
12896 relative_utf16_range: Option<Range<isize>>,
12897 cx: &mut ViewContext<Self>,
12898 ) {
12899 if !self.input_enabled {
12900 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12901 return;
12902 }
12903 if let Some(relative_utf16_range) = relative_utf16_range {
12904 let selections = self.selections.all::<OffsetUtf16>(cx);
12905 self.change_selections(None, cx, |s| {
12906 let new_ranges = selections.into_iter().map(|range| {
12907 let start = OffsetUtf16(
12908 range
12909 .head()
12910 .0
12911 .saturating_add_signed(relative_utf16_range.start),
12912 );
12913 let end = OffsetUtf16(
12914 range
12915 .head()
12916 .0
12917 .saturating_add_signed(relative_utf16_range.end),
12918 );
12919 start..end
12920 });
12921 s.select_ranges(new_ranges);
12922 });
12923 }
12924
12925 self.handle_input(text, cx);
12926 }
12927
12928 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12929 let Some(provider) = self.semantics_provider.as_ref() else {
12930 return false;
12931 };
12932
12933 let mut supports = false;
12934 self.buffer().read(cx).for_each_buffer(|buffer| {
12935 supports |= provider.supports_inlay_hints(buffer, cx);
12936 });
12937 supports
12938 }
12939
12940 pub fn focus(&self, cx: &mut WindowContext) {
12941 cx.focus(&self.focus_handle)
12942 }
12943
12944 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12945 self.focus_handle.is_focused(cx)
12946 }
12947
12948 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12949 cx.emit(EditorEvent::Focused);
12950
12951 if let Some(descendant) = self
12952 .last_focused_descendant
12953 .take()
12954 .and_then(|descendant| descendant.upgrade())
12955 {
12956 cx.focus(&descendant);
12957 } else {
12958 if let Some(blame) = self.blame.as_ref() {
12959 blame.update(cx, GitBlame::focus)
12960 }
12961
12962 self.blink_manager.update(cx, BlinkManager::enable);
12963 self.show_cursor_names(cx);
12964 self.buffer.update(cx, |buffer, cx| {
12965 buffer.finalize_last_transaction(cx);
12966 if self.leader_peer_id.is_none() {
12967 buffer.set_active_selections(
12968 &self.selections.disjoint_anchors(),
12969 self.selections.line_mode,
12970 self.cursor_shape,
12971 cx,
12972 );
12973 }
12974 });
12975 }
12976 }
12977
12978 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12979 cx.emit(EditorEvent::FocusedIn)
12980 }
12981
12982 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12983 if event.blurred != self.focus_handle {
12984 self.last_focused_descendant = Some(event.blurred);
12985 }
12986 }
12987
12988 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12989 self.blink_manager.update(cx, BlinkManager::disable);
12990 self.buffer
12991 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12992
12993 if let Some(blame) = self.blame.as_ref() {
12994 blame.update(cx, GitBlame::blur)
12995 }
12996 if !self.hover_state.focused(cx) {
12997 hide_hover(self, cx);
12998 }
12999
13000 self.hide_context_menu(cx);
13001 cx.emit(EditorEvent::Blurred);
13002 cx.notify();
13003 }
13004
13005 pub fn register_action<A: Action>(
13006 &mut self,
13007 listener: impl Fn(&A, &mut WindowContext) + 'static,
13008 ) -> Subscription {
13009 let id = self.next_editor_action_id.post_inc();
13010 let listener = Arc::new(listener);
13011 self.editor_actions.borrow_mut().insert(
13012 id,
13013 Box::new(move |cx| {
13014 let cx = cx.window_context();
13015 let listener = listener.clone();
13016 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13017 let action = action.downcast_ref().unwrap();
13018 if phase == DispatchPhase::Bubble {
13019 listener(action, cx)
13020 }
13021 })
13022 }),
13023 );
13024
13025 let editor_actions = self.editor_actions.clone();
13026 Subscription::new(move || {
13027 editor_actions.borrow_mut().remove(&id);
13028 })
13029 }
13030
13031 pub fn file_header_size(&self) -> u32 {
13032 FILE_HEADER_HEIGHT
13033 }
13034
13035 pub fn revert(
13036 &mut self,
13037 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13038 cx: &mut ViewContext<Self>,
13039 ) {
13040 self.buffer().update(cx, |multi_buffer, cx| {
13041 for (buffer_id, changes) in revert_changes {
13042 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13043 buffer.update(cx, |buffer, cx| {
13044 buffer.edit(
13045 changes.into_iter().map(|(range, text)| {
13046 (range, text.to_string().map(Arc::<str>::from))
13047 }),
13048 None,
13049 cx,
13050 );
13051 });
13052 }
13053 }
13054 });
13055 self.change_selections(None, cx, |selections| selections.refresh());
13056 }
13057
13058 pub fn to_pixel_point(
13059 &mut self,
13060 source: multi_buffer::Anchor,
13061 editor_snapshot: &EditorSnapshot,
13062 cx: &mut ViewContext<Self>,
13063 ) -> Option<gpui::Point<Pixels>> {
13064 let source_point = source.to_display_point(editor_snapshot);
13065 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13066 }
13067
13068 pub fn display_to_pixel_point(
13069 &mut self,
13070 source: DisplayPoint,
13071 editor_snapshot: &EditorSnapshot,
13072 cx: &mut ViewContext<Self>,
13073 ) -> Option<gpui::Point<Pixels>> {
13074 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13075 let text_layout_details = self.text_layout_details(cx);
13076 let scroll_top = text_layout_details
13077 .scroll_anchor
13078 .scroll_position(editor_snapshot)
13079 .y;
13080
13081 if source.row().as_f32() < scroll_top.floor() {
13082 return None;
13083 }
13084 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13085 let source_y = line_height * (source.row().as_f32() - scroll_top);
13086 Some(gpui::Point::new(source_x, source_y))
13087 }
13088
13089 pub fn has_active_completions_menu(&self) -> bool {
13090 self.context_menu.read().as_ref().map_or(false, |menu| {
13091 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13092 })
13093 }
13094
13095 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13096 self.addons
13097 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13098 }
13099
13100 pub fn unregister_addon<T: Addon>(&mut self) {
13101 self.addons.remove(&std::any::TypeId::of::<T>());
13102 }
13103
13104 pub fn addon<T: Addon>(&self) -> Option<&T> {
13105 let type_id = std::any::TypeId::of::<T>();
13106 self.addons
13107 .get(&type_id)
13108 .and_then(|item| item.to_any().downcast_ref::<T>())
13109 }
13110}
13111
13112fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13113 let tab_size = tab_size.get() as usize;
13114 let mut width = offset;
13115
13116 for ch in text.chars() {
13117 width += if ch == '\t' {
13118 tab_size - (width % tab_size)
13119 } else {
13120 1
13121 };
13122 }
13123
13124 width - offset
13125}
13126
13127#[cfg(test)]
13128mod tests {
13129 use super::*;
13130
13131 #[test]
13132 fn test_string_size_with_expanded_tabs() {
13133 let nz = |val| NonZeroU32::new(val).unwrap();
13134 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13135 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13136 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13137 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13138 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13139 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13140 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13141 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13142 }
13143}
13144
13145/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13146struct WordBreakingTokenizer<'a> {
13147 input: &'a str,
13148}
13149
13150impl<'a> WordBreakingTokenizer<'a> {
13151 fn new(input: &'a str) -> Self {
13152 Self { input }
13153 }
13154}
13155
13156fn is_char_ideographic(ch: char) -> bool {
13157 use unicode_script::Script::*;
13158 use unicode_script::UnicodeScript;
13159 matches!(ch.script(), Han | Tangut | Yi)
13160}
13161
13162fn is_grapheme_ideographic(text: &str) -> bool {
13163 text.chars().any(is_char_ideographic)
13164}
13165
13166fn is_grapheme_whitespace(text: &str) -> bool {
13167 text.chars().any(|x| x.is_whitespace())
13168}
13169
13170fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13171 text.chars().next().map_or(false, |ch| {
13172 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13173 })
13174}
13175
13176#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13177struct WordBreakToken<'a> {
13178 token: &'a str,
13179 grapheme_len: usize,
13180 is_whitespace: bool,
13181}
13182
13183impl<'a> Iterator for WordBreakingTokenizer<'a> {
13184 /// Yields a span, the count of graphemes in the token, and whether it was
13185 /// whitespace. Note that it also breaks at word boundaries.
13186 type Item = WordBreakToken<'a>;
13187
13188 fn next(&mut self) -> Option<Self::Item> {
13189 use unicode_segmentation::UnicodeSegmentation;
13190 if self.input.is_empty() {
13191 return None;
13192 }
13193
13194 let mut iter = self.input.graphemes(true).peekable();
13195 let mut offset = 0;
13196 let mut graphemes = 0;
13197 if let Some(first_grapheme) = iter.next() {
13198 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13199 offset += first_grapheme.len();
13200 graphemes += 1;
13201 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13202 if let Some(grapheme) = iter.peek().copied() {
13203 if should_stay_with_preceding_ideograph(grapheme) {
13204 offset += grapheme.len();
13205 graphemes += 1;
13206 }
13207 }
13208 } else {
13209 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13210 let mut next_word_bound = words.peek().copied();
13211 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13212 next_word_bound = words.next();
13213 }
13214 while let Some(grapheme) = iter.peek().copied() {
13215 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13216 break;
13217 };
13218 if is_grapheme_whitespace(grapheme) != is_whitespace {
13219 break;
13220 };
13221 offset += grapheme.len();
13222 graphemes += 1;
13223 iter.next();
13224 }
13225 }
13226 let token = &self.input[..offset];
13227 self.input = &self.input[offset..];
13228 if is_whitespace {
13229 Some(WordBreakToken {
13230 token: " ",
13231 grapheme_len: 1,
13232 is_whitespace: true,
13233 })
13234 } else {
13235 Some(WordBreakToken {
13236 token,
13237 grapheme_len: graphemes,
13238 is_whitespace: false,
13239 })
13240 }
13241 } else {
13242 None
13243 }
13244 }
13245}
13246
13247#[test]
13248fn test_word_breaking_tokenizer() {
13249 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13250 ("", &[]),
13251 (" ", &[(" ", 1, true)]),
13252 ("Ʒ", &[("Ʒ", 1, false)]),
13253 ("Ǽ", &[("Ǽ", 1, false)]),
13254 ("⋑", &[("⋑", 1, false)]),
13255 ("⋑⋑", &[("⋑⋑", 2, false)]),
13256 (
13257 "原理，进而",
13258 &[
13259 ("原", 1, false),
13260 ("理，", 2, false),
13261 ("进", 1, false),
13262 ("而", 1, false),
13263 ],
13264 ),
13265 (
13266 "hello world",
13267 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13268 ),
13269 (
13270 "hello, world",
13271 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13272 ),
13273 (
13274 " hello world",
13275 &[
13276 (" ", 1, true),
13277 ("hello", 5, false),
13278 (" ", 1, true),
13279 ("world", 5, false),
13280 ],
13281 ),
13282 (
13283 "这是什么 \n 钢笔",
13284 &[
13285 ("这", 1, false),
13286 ("是", 1, false),
13287 ("什", 1, false),
13288 ("么", 1, false),
13289 (" ", 1, true),
13290 ("钢", 1, false),
13291 ("笔", 1, false),
13292 ],
13293 ),
13294 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13295 ];
13296
13297 for (input, result) in tests {
13298 assert_eq!(
13299 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13300 result
13301 .iter()
13302 .copied()
13303 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13304 token,
13305 grapheme_len,
13306 is_whitespace,
13307 })
13308 .collect::<Vec<_>>()
13309 );
13310 }
13311}
13312
13313fn wrap_with_prefix(
13314 line_prefix: String,
13315 unwrapped_text: String,
13316 wrap_column: usize,
13317 tab_size: NonZeroU32,
13318) -> String {
13319 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13320 let mut wrapped_text = String::new();
13321 let mut current_line = line_prefix.clone();
13322
13323 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13324 let mut current_line_len = line_prefix_len;
13325 for WordBreakToken {
13326 token,
13327 grapheme_len,
13328 is_whitespace,
13329 } in tokenizer
13330 {
13331 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13332 wrapped_text.push_str(current_line.trim_end());
13333 wrapped_text.push('\n');
13334 current_line.truncate(line_prefix.len());
13335 current_line_len = line_prefix_len;
13336 if !is_whitespace {
13337 current_line.push_str(token);
13338 current_line_len += grapheme_len;
13339 }
13340 } else if !is_whitespace {
13341 current_line.push_str(token);
13342 current_line_len += grapheme_len;
13343 } else if current_line_len != line_prefix_len {
13344 current_line.push(' ');
13345 current_line_len += 1;
13346 }
13347 }
13348
13349 if !current_line.is_empty() {
13350 wrapped_text.push_str(¤t_line);
13351 }
13352 wrapped_text
13353}
13354
13355#[test]
13356fn test_wrap_with_prefix() {
13357 assert_eq!(
13358 wrap_with_prefix(
13359 "# ".to_string(),
13360 "abcdefg".to_string(),
13361 4,
13362 NonZeroU32::new(4).unwrap()
13363 ),
13364 "# abcdefg"
13365 );
13366 assert_eq!(
13367 wrap_with_prefix(
13368 "".to_string(),
13369 "\thello world".to_string(),
13370 8,
13371 NonZeroU32::new(4).unwrap()
13372 ),
13373 "hello\nworld"
13374 );
13375 assert_eq!(
13376 wrap_with_prefix(
13377 "// ".to_string(),
13378 "xx \nyy zz aa bb cc".to_string(),
13379 12,
13380 NonZeroU32::new(4).unwrap()
13381 ),
13382 "// xx yy zz\n// aa bb cc"
13383 );
13384 assert_eq!(
13385 wrap_with_prefix(
13386 String::new(),
13387 "这是什么 \n 钢笔".to_string(),
13388 3,
13389 NonZeroU32::new(4).unwrap()
13390 ),
13391 "这是什\n么 钢\n笔"
13392 );
13393}
13394
13395fn hunks_for_selections(
13396 multi_buffer_snapshot: &MultiBufferSnapshot,
13397 selections: &[Selection<Anchor>],
13398) -> Vec<MultiBufferDiffHunk> {
13399 let buffer_rows_for_selections = selections.iter().map(|selection| {
13400 let head = selection.head();
13401 let tail = selection.tail();
13402 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13403 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13404 if start > end {
13405 end..start
13406 } else {
13407 start..end
13408 }
13409 });
13410
13411 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13412}
13413
13414pub fn hunks_for_rows(
13415 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13416 multi_buffer_snapshot: &MultiBufferSnapshot,
13417) -> Vec<MultiBufferDiffHunk> {
13418 let mut hunks = Vec::new();
13419 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13420 HashMap::default();
13421 for selected_multi_buffer_rows in rows {
13422 let query_rows =
13423 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13424 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13425 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13426 // when the caret is just above or just below the deleted hunk.
13427 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13428 let related_to_selection = if allow_adjacent {
13429 hunk.row_range.overlaps(&query_rows)
13430 || hunk.row_range.start == query_rows.end
13431 || hunk.row_range.end == query_rows.start
13432 } else {
13433 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13434 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13435 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13436 || selected_multi_buffer_rows.end == hunk.row_range.start
13437 };
13438 if related_to_selection {
13439 if !processed_buffer_rows
13440 .entry(hunk.buffer_id)
13441 .or_default()
13442 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13443 {
13444 continue;
13445 }
13446 hunks.push(hunk);
13447 }
13448 }
13449 }
13450
13451 hunks
13452}
13453
13454pub trait CollaborationHub {
13455 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13456 fn user_participant_indices<'a>(
13457 &self,
13458 cx: &'a AppContext,
13459 ) -> &'a HashMap<u64, ParticipantIndex>;
13460 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13461}
13462
13463impl CollaborationHub for Model<Project> {
13464 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13465 self.read(cx).collaborators()
13466 }
13467
13468 fn user_participant_indices<'a>(
13469 &self,
13470 cx: &'a AppContext,
13471 ) -> &'a HashMap<u64, ParticipantIndex> {
13472 self.read(cx).user_store().read(cx).participant_indices()
13473 }
13474
13475 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13476 let this = self.read(cx);
13477 let user_ids = this.collaborators().values().map(|c| c.user_id);
13478 this.user_store().read_with(cx, |user_store, cx| {
13479 user_store.participant_names(user_ids, cx)
13480 })
13481 }
13482}
13483
13484pub trait SemanticsProvider {
13485 fn hover(
13486 &self,
13487 buffer: &Model<Buffer>,
13488 position: text::Anchor,
13489 cx: &mut AppContext,
13490 ) -> Option<Task<Vec<project::Hover>>>;
13491
13492 fn inlay_hints(
13493 &self,
13494 buffer_handle: Model<Buffer>,
13495 range: Range<text::Anchor>,
13496 cx: &mut AppContext,
13497 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13498
13499 fn resolve_inlay_hint(
13500 &self,
13501 hint: InlayHint,
13502 buffer_handle: Model<Buffer>,
13503 server_id: LanguageServerId,
13504 cx: &mut AppContext,
13505 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13506
13507 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13508
13509 fn document_highlights(
13510 &self,
13511 buffer: &Model<Buffer>,
13512 position: text::Anchor,
13513 cx: &mut AppContext,
13514 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13515
13516 fn definitions(
13517 &self,
13518 buffer: &Model<Buffer>,
13519 position: text::Anchor,
13520 kind: GotoDefinitionKind,
13521 cx: &mut AppContext,
13522 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13523
13524 fn range_for_rename(
13525 &self,
13526 buffer: &Model<Buffer>,
13527 position: text::Anchor,
13528 cx: &mut AppContext,
13529 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13530
13531 fn perform_rename(
13532 &self,
13533 buffer: &Model<Buffer>,
13534 position: text::Anchor,
13535 new_name: String,
13536 cx: &mut AppContext,
13537 ) -> Option<Task<Result<ProjectTransaction>>>;
13538}
13539
13540pub trait CompletionProvider {
13541 fn completions(
13542 &self,
13543 buffer: &Model<Buffer>,
13544 buffer_position: text::Anchor,
13545 trigger: CompletionContext,
13546 cx: &mut ViewContext<Editor>,
13547 ) -> Task<Result<Vec<Completion>>>;
13548
13549 fn resolve_completions(
13550 &self,
13551 buffer: Model<Buffer>,
13552 completion_indices: Vec<usize>,
13553 completions: Arc<RwLock<Box<[Completion]>>>,
13554 cx: &mut ViewContext<Editor>,
13555 ) -> Task<Result<bool>>;
13556
13557 fn apply_additional_edits_for_completion(
13558 &self,
13559 buffer: Model<Buffer>,
13560 completion: Completion,
13561 push_to_history: bool,
13562 cx: &mut ViewContext<Editor>,
13563 ) -> Task<Result<Option<language::Transaction>>>;
13564
13565 fn is_completion_trigger(
13566 &self,
13567 buffer: &Model<Buffer>,
13568 position: language::Anchor,
13569 text: &str,
13570 trigger_in_words: bool,
13571 cx: &mut ViewContext<Editor>,
13572 ) -> bool;
13573
13574 fn sort_completions(&self) -> bool {
13575 true
13576 }
13577}
13578
13579pub trait CodeActionProvider {
13580 fn code_actions(
13581 &self,
13582 buffer: &Model<Buffer>,
13583 range: Range<text::Anchor>,
13584 cx: &mut WindowContext,
13585 ) -> Task<Result<Vec<CodeAction>>>;
13586
13587 fn apply_code_action(
13588 &self,
13589 buffer_handle: Model<Buffer>,
13590 action: CodeAction,
13591 excerpt_id: ExcerptId,
13592 push_to_history: bool,
13593 cx: &mut WindowContext,
13594 ) -> Task<Result<ProjectTransaction>>;
13595}
13596
13597impl CodeActionProvider for Model<Project> {
13598 fn code_actions(
13599 &self,
13600 buffer: &Model<Buffer>,
13601 range: Range<text::Anchor>,
13602 cx: &mut WindowContext,
13603 ) -> Task<Result<Vec<CodeAction>>> {
13604 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13605 }
13606
13607 fn apply_code_action(
13608 &self,
13609 buffer_handle: Model<Buffer>,
13610 action: CodeAction,
13611 _excerpt_id: ExcerptId,
13612 push_to_history: bool,
13613 cx: &mut WindowContext,
13614 ) -> Task<Result<ProjectTransaction>> {
13615 self.update(cx, |project, cx| {
13616 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13617 })
13618 }
13619}
13620
13621fn snippet_completions(
13622 project: &Project,
13623 buffer: &Model<Buffer>,
13624 buffer_position: text::Anchor,
13625 cx: &mut AppContext,
13626) -> Vec<Completion> {
13627 let language = buffer.read(cx).language_at(buffer_position);
13628 let language_name = language.as_ref().map(|language| language.lsp_id());
13629 let snippet_store = project.snippets().read(cx);
13630 let snippets = snippet_store.snippets_for(language_name, cx);
13631
13632 if snippets.is_empty() {
13633 return vec![];
13634 }
13635 let snapshot = buffer.read(cx).text_snapshot();
13636 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13637
13638 let scope = language.map(|language| language.default_scope());
13639 let classifier = CharClassifier::new(scope).for_completion(true);
13640 let mut last_word = chars
13641 .take_while(|c| classifier.is_word(*c))
13642 .collect::<String>();
13643 last_word = last_word.chars().rev().collect();
13644 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13645 let to_lsp = |point: &text::Anchor| {
13646 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13647 point_to_lsp(end)
13648 };
13649 let lsp_end = to_lsp(&buffer_position);
13650 snippets
13651 .into_iter()
13652 .filter_map(|snippet| {
13653 let matching_prefix = snippet
13654 .prefix
13655 .iter()
13656 .find(|prefix| prefix.starts_with(&last_word))?;
13657 let start = as_offset - last_word.len();
13658 let start = snapshot.anchor_before(start);
13659 let range = start..buffer_position;
13660 let lsp_start = to_lsp(&start);
13661 let lsp_range = lsp::Range {
13662 start: lsp_start,
13663 end: lsp_end,
13664 };
13665 Some(Completion {
13666 old_range: range,
13667 new_text: snippet.body.clone(),
13668 label: CodeLabel {
13669 text: matching_prefix.clone(),
13670 runs: vec![],
13671 filter_range: 0..matching_prefix.len(),
13672 },
13673 server_id: LanguageServerId(usize::MAX),
13674 documentation: snippet.description.clone().map(Documentation::SingleLine),
13675 lsp_completion: lsp::CompletionItem {
13676 label: snippet.prefix.first().unwrap().clone(),
13677 kind: Some(CompletionItemKind::SNIPPET),
13678 label_details: snippet.description.as_ref().map(|description| {
13679 lsp::CompletionItemLabelDetails {
13680 detail: Some(description.clone()),
13681 description: None,
13682 }
13683 }),
13684 insert_text_format: Some(InsertTextFormat::SNIPPET),
13685 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13686 lsp::InsertReplaceEdit {
13687 new_text: snippet.body.clone(),
13688 insert: lsp_range,
13689 replace: lsp_range,
13690 },
13691 )),
13692 filter_text: Some(snippet.body.clone()),
13693 sort_text: Some(char::MAX.to_string()),
13694 ..Default::default()
13695 },
13696 confirm: None,
13697 })
13698 })
13699 .collect()
13700}
13701
13702impl CompletionProvider for Model<Project> {
13703 fn completions(
13704 &self,
13705 buffer: &Model<Buffer>,
13706 buffer_position: text::Anchor,
13707 options: CompletionContext,
13708 cx: &mut ViewContext<Editor>,
13709 ) -> Task<Result<Vec<Completion>>> {
13710 self.update(cx, |project, cx| {
13711 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13712 let project_completions = project.completions(buffer, buffer_position, options, cx);
13713 cx.background_executor().spawn(async move {
13714 let mut completions = project_completions.await?;
13715 //let snippets = snippets.into_iter().;
13716 completions.extend(snippets);
13717 Ok(completions)
13718 })
13719 })
13720 }
13721
13722 fn resolve_completions(
13723 &self,
13724 buffer: Model<Buffer>,
13725 completion_indices: Vec<usize>,
13726 completions: Arc<RwLock<Box<[Completion]>>>,
13727 cx: &mut ViewContext<Editor>,
13728 ) -> Task<Result<bool>> {
13729 self.update(cx, |project, cx| {
13730 project.resolve_completions(buffer, completion_indices, completions, cx)
13731 })
13732 }
13733
13734 fn apply_additional_edits_for_completion(
13735 &self,
13736 buffer: Model<Buffer>,
13737 completion: Completion,
13738 push_to_history: bool,
13739 cx: &mut ViewContext<Editor>,
13740 ) -> Task<Result<Option<language::Transaction>>> {
13741 self.update(cx, |project, cx| {
13742 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13743 })
13744 }
13745
13746 fn is_completion_trigger(
13747 &self,
13748 buffer: &Model<Buffer>,
13749 position: language::Anchor,
13750 text: &str,
13751 trigger_in_words: bool,
13752 cx: &mut ViewContext<Editor>,
13753 ) -> bool {
13754 if !EditorSettings::get_global(cx).show_completions_on_input {
13755 return false;
13756 }
13757
13758 let mut chars = text.chars();
13759 let char = if let Some(char) = chars.next() {
13760 char
13761 } else {
13762 return false;
13763 };
13764 if chars.next().is_some() {
13765 return false;
13766 }
13767
13768 let buffer = buffer.read(cx);
13769 let classifier = buffer
13770 .snapshot()
13771 .char_classifier_at(position)
13772 .for_completion(true);
13773 if trigger_in_words && classifier.is_word(char) {
13774 return true;
13775 }
13776
13777 buffer.completion_triggers().contains(text)
13778 }
13779}
13780
13781impl SemanticsProvider for Model<Project> {
13782 fn hover(
13783 &self,
13784 buffer: &Model<Buffer>,
13785 position: text::Anchor,
13786 cx: &mut AppContext,
13787 ) -> Option<Task<Vec<project::Hover>>> {
13788 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13789 }
13790
13791 fn document_highlights(
13792 &self,
13793 buffer: &Model<Buffer>,
13794 position: text::Anchor,
13795 cx: &mut AppContext,
13796 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13797 Some(self.update(cx, |project, cx| {
13798 project.document_highlights(buffer, position, cx)
13799 }))
13800 }
13801
13802 fn definitions(
13803 &self,
13804 buffer: &Model<Buffer>,
13805 position: text::Anchor,
13806 kind: GotoDefinitionKind,
13807 cx: &mut AppContext,
13808 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13809 Some(self.update(cx, |project, cx| match kind {
13810 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13811 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13812 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13813 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13814 }))
13815 }
13816
13817 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13818 // TODO: make this work for remote projects
13819 self.read(cx)
13820 .language_servers_for_buffer(buffer.read(cx), cx)
13821 .any(
13822 |(_, server)| match server.capabilities().inlay_hint_provider {
13823 Some(lsp::OneOf::Left(enabled)) => enabled,
13824 Some(lsp::OneOf::Right(_)) => true,
13825 None => false,
13826 },
13827 )
13828 }
13829
13830 fn inlay_hints(
13831 &self,
13832 buffer_handle: Model<Buffer>,
13833 range: Range<text::Anchor>,
13834 cx: &mut AppContext,
13835 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13836 Some(self.update(cx, |project, cx| {
13837 project.inlay_hints(buffer_handle, range, cx)
13838 }))
13839 }
13840
13841 fn resolve_inlay_hint(
13842 &self,
13843 hint: InlayHint,
13844 buffer_handle: Model<Buffer>,
13845 server_id: LanguageServerId,
13846 cx: &mut AppContext,
13847 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13848 Some(self.update(cx, |project, cx| {
13849 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13850 }))
13851 }
13852
13853 fn range_for_rename(
13854 &self,
13855 buffer: &Model<Buffer>,
13856 position: text::Anchor,
13857 cx: &mut AppContext,
13858 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13859 Some(self.update(cx, |project, cx| {
13860 project.prepare_rename(buffer.clone(), position, cx)
13861 }))
13862 }
13863
13864 fn perform_rename(
13865 &self,
13866 buffer: &Model<Buffer>,
13867 position: text::Anchor,
13868 new_name: String,
13869 cx: &mut AppContext,
13870 ) -> Option<Task<Result<ProjectTransaction>>> {
13871 Some(self.update(cx, |project, cx| {
13872 project.perform_rename(buffer.clone(), position, new_name, cx)
13873 }))
13874 }
13875}
13876
13877fn inlay_hint_settings(
13878 location: Anchor,
13879 snapshot: &MultiBufferSnapshot,
13880 cx: &mut ViewContext<'_, Editor>,
13881) -> InlayHintSettings {
13882 let file = snapshot.file_at(location);
13883 let language = snapshot.language_at(location).map(|l| l.name());
13884 language_settings(language, file, cx).inlay_hints
13885}
13886
13887fn consume_contiguous_rows(
13888 contiguous_row_selections: &mut Vec<Selection<Point>>,
13889 selection: &Selection<Point>,
13890 display_map: &DisplaySnapshot,
13891 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13892) -> (MultiBufferRow, MultiBufferRow) {
13893 contiguous_row_selections.push(selection.clone());
13894 let start_row = MultiBufferRow(selection.start.row);
13895 let mut end_row = ending_row(selection, display_map);
13896
13897 while let Some(next_selection) = selections.peek() {
13898 if next_selection.start.row <= end_row.0 {
13899 end_row = ending_row(next_selection, display_map);
13900 contiguous_row_selections.push(selections.next().unwrap().clone());
13901 } else {
13902 break;
13903 }
13904 }
13905 (start_row, end_row)
13906}
13907
13908fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13909 if next_selection.end.column > 0 || next_selection.is_empty() {
13910 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13911 } else {
13912 MultiBufferRow(next_selection.end.row)
13913 }
13914}
13915
13916impl EditorSnapshot {
13917 pub fn remote_selections_in_range<'a>(
13918 &'a self,
13919 range: &'a Range<Anchor>,
13920 collaboration_hub: &dyn CollaborationHub,
13921 cx: &'a AppContext,
13922 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13923 let participant_names = collaboration_hub.user_names(cx);
13924 let participant_indices = collaboration_hub.user_participant_indices(cx);
13925 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13926 let collaborators_by_replica_id = collaborators_by_peer_id
13927 .iter()
13928 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13929 .collect::<HashMap<_, _>>();
13930 self.buffer_snapshot
13931 .selections_in_range(range, false)
13932 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13933 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13934 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13935 let user_name = participant_names.get(&collaborator.user_id).cloned();
13936 Some(RemoteSelection {
13937 replica_id,
13938 selection,
13939 cursor_shape,
13940 line_mode,
13941 participant_index,
13942 peer_id: collaborator.peer_id,
13943 user_name,
13944 })
13945 })
13946 }
13947
13948 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13949 self.display_snapshot.buffer_snapshot.language_at(position)
13950 }
13951
13952 pub fn is_focused(&self) -> bool {
13953 self.is_focused
13954 }
13955
13956 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13957 self.placeholder_text.as_ref()
13958 }
13959
13960 pub fn scroll_position(&self) -> gpui::Point<f32> {
13961 self.scroll_anchor.scroll_position(&self.display_snapshot)
13962 }
13963
13964 fn gutter_dimensions(
13965 &self,
13966 font_id: FontId,
13967 font_size: Pixels,
13968 em_width: Pixels,
13969 em_advance: Pixels,
13970 max_line_number_width: Pixels,
13971 cx: &AppContext,
13972 ) -> GutterDimensions {
13973 if !self.show_gutter {
13974 return GutterDimensions::default();
13975 }
13976 let descent = cx.text_system().descent(font_id, font_size);
13977
13978 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13979 matches!(
13980 ProjectSettings::get_global(cx).git.git_gutter,
13981 Some(GitGutterSetting::TrackedFiles)
13982 )
13983 });
13984 let gutter_settings = EditorSettings::get_global(cx).gutter;
13985 let show_line_numbers = self
13986 .show_line_numbers
13987 .unwrap_or(gutter_settings.line_numbers);
13988 let line_gutter_width = if show_line_numbers {
13989 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13990 let min_width_for_number_on_gutter = em_advance * 4.0;
13991 max_line_number_width.max(min_width_for_number_on_gutter)
13992 } else {
13993 0.0.into()
13994 };
13995
13996 let show_code_actions = self
13997 .show_code_actions
13998 .unwrap_or(gutter_settings.code_actions);
13999
14000 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14001
14002 let git_blame_entries_width =
14003 self.git_blame_gutter_max_author_length
14004 .map(|max_author_length| {
14005 // Length of the author name, but also space for the commit hash,
14006 // the spacing and the timestamp.
14007 let max_char_count = max_author_length
14008 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14009 + 7 // length of commit sha
14010 + 14 // length of max relative timestamp ("60 minutes ago")
14011 + 4; // gaps and margins
14012
14013 em_advance * max_char_count
14014 });
14015
14016 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14017 left_padding += if show_code_actions || show_runnables {
14018 em_width * 3.0
14019 } else if show_git_gutter && show_line_numbers {
14020 em_width * 2.0
14021 } else if show_git_gutter || show_line_numbers {
14022 em_width
14023 } else {
14024 px(0.)
14025 };
14026
14027 let right_padding = if gutter_settings.folds && show_line_numbers {
14028 em_width * 4.0
14029 } else if gutter_settings.folds {
14030 em_width * 3.0
14031 } else if show_line_numbers {
14032 em_width
14033 } else {
14034 px(0.)
14035 };
14036
14037 GutterDimensions {
14038 left_padding,
14039 right_padding,
14040 width: line_gutter_width + left_padding + right_padding,
14041 margin: -descent,
14042 git_blame_entries_width,
14043 }
14044 }
14045
14046 pub fn render_fold_toggle(
14047 &self,
14048 buffer_row: MultiBufferRow,
14049 row_contains_cursor: bool,
14050 editor: View<Editor>,
14051 cx: &mut WindowContext,
14052 ) -> Option<AnyElement> {
14053 let folded = self.is_line_folded(buffer_row);
14054
14055 if let Some(crease) = self
14056 .crease_snapshot
14057 .query_row(buffer_row, &self.buffer_snapshot)
14058 {
14059 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14060 if folded {
14061 editor.update(cx, |editor, cx| {
14062 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14063 });
14064 } else {
14065 editor.update(cx, |editor, cx| {
14066 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14067 });
14068 }
14069 });
14070
14071 Some((crease.render_toggle)(
14072 buffer_row,
14073 folded,
14074 toggle_callback,
14075 cx,
14076 ))
14077 } else if folded
14078 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
14079 {
14080 Some(
14081 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
14082 .selected(folded)
14083 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14084 if folded {
14085 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14086 } else {
14087 this.fold_at(&FoldAt { buffer_row }, cx);
14088 }
14089 }))
14090 .into_any_element(),
14091 )
14092 } else {
14093 None
14094 }
14095 }
14096
14097 pub fn render_crease_trailer(
14098 &self,
14099 buffer_row: MultiBufferRow,
14100 cx: &mut WindowContext,
14101 ) -> Option<AnyElement> {
14102 let folded = self.is_line_folded(buffer_row);
14103 let crease = self
14104 .crease_snapshot
14105 .query_row(buffer_row, &self.buffer_snapshot)?;
14106 Some((crease.render_trailer)(buffer_row, folded, cx))
14107 }
14108}
14109
14110impl Deref for EditorSnapshot {
14111 type Target = DisplaySnapshot;
14112
14113 fn deref(&self) -> &Self::Target {
14114 &self.display_snapshot
14115 }
14116}
14117
14118#[derive(Clone, Debug, PartialEq, Eq)]
14119pub enum EditorEvent {
14120 InputIgnored {
14121 text: Arc<str>,
14122 },
14123 InputHandled {
14124 utf16_range_to_replace: Option<Range<isize>>,
14125 text: Arc<str>,
14126 },
14127 ExcerptsAdded {
14128 buffer: Model<Buffer>,
14129 predecessor: ExcerptId,
14130 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14131 },
14132 ExcerptsRemoved {
14133 ids: Vec<ExcerptId>,
14134 },
14135 ExcerptsEdited {
14136 ids: Vec<ExcerptId>,
14137 },
14138 ExcerptsExpanded {
14139 ids: Vec<ExcerptId>,
14140 },
14141 BufferEdited,
14142 Edited {
14143 transaction_id: clock::Lamport,
14144 },
14145 Reparsed(BufferId),
14146 Focused,
14147 FocusedIn,
14148 Blurred,
14149 DirtyChanged,
14150 Saved,
14151 TitleChanged,
14152 DiffBaseChanged,
14153 SelectionsChanged {
14154 local: bool,
14155 },
14156 ScrollPositionChanged {
14157 local: bool,
14158 autoscroll: bool,
14159 },
14160 Closed,
14161 TransactionUndone {
14162 transaction_id: clock::Lamport,
14163 },
14164 TransactionBegun {
14165 transaction_id: clock::Lamport,
14166 },
14167 Reloaded,
14168 CursorShapeChanged,
14169}
14170
14171impl EventEmitter<EditorEvent> for Editor {}
14172
14173impl FocusableView for Editor {
14174 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14175 self.focus_handle.clone()
14176 }
14177}
14178
14179impl Render for Editor {
14180 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14181 let settings = ThemeSettings::get_global(cx);
14182
14183 let mut text_style = match self.mode {
14184 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14185 color: cx.theme().colors().editor_foreground,
14186 font_family: settings.ui_font.family.clone(),
14187 font_features: settings.ui_font.features.clone(),
14188 font_fallbacks: settings.ui_font.fallbacks.clone(),
14189 font_size: rems(0.875).into(),
14190 font_weight: settings.ui_font.weight,
14191 line_height: relative(settings.buffer_line_height.value()),
14192 ..Default::default()
14193 },
14194 EditorMode::Full => TextStyle {
14195 color: cx.theme().colors().editor_foreground,
14196 font_family: settings.buffer_font.family.clone(),
14197 font_features: settings.buffer_font.features.clone(),
14198 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14199 font_size: settings.buffer_font_size(cx).into(),
14200 font_weight: settings.buffer_font.weight,
14201 line_height: relative(settings.buffer_line_height.value()),
14202 ..Default::default()
14203 },
14204 };
14205 if let Some(text_style_refinement) = &self.text_style_refinement {
14206 text_style.refine(text_style_refinement)
14207 }
14208
14209 let background = match self.mode {
14210 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14211 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14212 EditorMode::Full => cx.theme().colors().editor_background,
14213 };
14214
14215 EditorElement::new(
14216 cx.view(),
14217 EditorStyle {
14218 background,
14219 local_player: cx.theme().players().local(),
14220 text: text_style,
14221 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14222 syntax: cx.theme().syntax().clone(),
14223 status: cx.theme().status().clone(),
14224 inlay_hints_style: make_inlay_hints_style(cx),
14225 suggestions_style: HighlightStyle {
14226 color: Some(cx.theme().status().predictive),
14227 ..HighlightStyle::default()
14228 },
14229 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14230 },
14231 )
14232 }
14233}
14234
14235impl ViewInputHandler for Editor {
14236 fn text_for_range(
14237 &mut self,
14238 range_utf16: Range<usize>,
14239 cx: &mut ViewContext<Self>,
14240 ) -> Option<String> {
14241 Some(
14242 self.buffer
14243 .read(cx)
14244 .read(cx)
14245 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
14246 .collect(),
14247 )
14248 }
14249
14250 fn selected_text_range(
14251 &mut self,
14252 ignore_disabled_input: bool,
14253 cx: &mut ViewContext<Self>,
14254 ) -> Option<UTF16Selection> {
14255 // Prevent the IME menu from appearing when holding down an alphabetic key
14256 // while input is disabled.
14257 if !ignore_disabled_input && !self.input_enabled {
14258 return None;
14259 }
14260
14261 let selection = self.selections.newest::<OffsetUtf16>(cx);
14262 let range = selection.range();
14263
14264 Some(UTF16Selection {
14265 range: range.start.0..range.end.0,
14266 reversed: selection.reversed,
14267 })
14268 }
14269
14270 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14271 let snapshot = self.buffer.read(cx).read(cx);
14272 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14273 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14274 }
14275
14276 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14277 self.clear_highlights::<InputComposition>(cx);
14278 self.ime_transaction.take();
14279 }
14280
14281 fn replace_text_in_range(
14282 &mut self,
14283 range_utf16: Option<Range<usize>>,
14284 text: &str,
14285 cx: &mut ViewContext<Self>,
14286 ) {
14287 if !self.input_enabled {
14288 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14289 return;
14290 }
14291
14292 self.transact(cx, |this, cx| {
14293 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14294 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14295 Some(this.selection_replacement_ranges(range_utf16, cx))
14296 } else {
14297 this.marked_text_ranges(cx)
14298 };
14299
14300 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14301 let newest_selection_id = this.selections.newest_anchor().id;
14302 this.selections
14303 .all::<OffsetUtf16>(cx)
14304 .iter()
14305 .zip(ranges_to_replace.iter())
14306 .find_map(|(selection, range)| {
14307 if selection.id == newest_selection_id {
14308 Some(
14309 (range.start.0 as isize - selection.head().0 as isize)
14310 ..(range.end.0 as isize - selection.head().0 as isize),
14311 )
14312 } else {
14313 None
14314 }
14315 })
14316 });
14317
14318 cx.emit(EditorEvent::InputHandled {
14319 utf16_range_to_replace: range_to_replace,
14320 text: text.into(),
14321 });
14322
14323 if let Some(new_selected_ranges) = new_selected_ranges {
14324 this.change_selections(None, cx, |selections| {
14325 selections.select_ranges(new_selected_ranges)
14326 });
14327 this.backspace(&Default::default(), cx);
14328 }
14329
14330 this.handle_input(text, cx);
14331 });
14332
14333 if let Some(transaction) = self.ime_transaction {
14334 self.buffer.update(cx, |buffer, cx| {
14335 buffer.group_until_transaction(transaction, cx);
14336 });
14337 }
14338
14339 self.unmark_text(cx);
14340 }
14341
14342 fn replace_and_mark_text_in_range(
14343 &mut self,
14344 range_utf16: Option<Range<usize>>,
14345 text: &str,
14346 new_selected_range_utf16: Option<Range<usize>>,
14347 cx: &mut ViewContext<Self>,
14348 ) {
14349 if !self.input_enabled {
14350 return;
14351 }
14352
14353 let transaction = self.transact(cx, |this, cx| {
14354 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14355 let snapshot = this.buffer.read(cx).read(cx);
14356 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14357 for marked_range in &mut marked_ranges {
14358 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14359 marked_range.start.0 += relative_range_utf16.start;
14360 marked_range.start =
14361 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14362 marked_range.end =
14363 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14364 }
14365 }
14366 Some(marked_ranges)
14367 } else if let Some(range_utf16) = range_utf16 {
14368 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14369 Some(this.selection_replacement_ranges(range_utf16, cx))
14370 } else {
14371 None
14372 };
14373
14374 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14375 let newest_selection_id = this.selections.newest_anchor().id;
14376 this.selections
14377 .all::<OffsetUtf16>(cx)
14378 .iter()
14379 .zip(ranges_to_replace.iter())
14380 .find_map(|(selection, range)| {
14381 if selection.id == newest_selection_id {
14382 Some(
14383 (range.start.0 as isize - selection.head().0 as isize)
14384 ..(range.end.0 as isize - selection.head().0 as isize),
14385 )
14386 } else {
14387 None
14388 }
14389 })
14390 });
14391
14392 cx.emit(EditorEvent::InputHandled {
14393 utf16_range_to_replace: range_to_replace,
14394 text: text.into(),
14395 });
14396
14397 if let Some(ranges) = ranges_to_replace {
14398 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14399 }
14400
14401 let marked_ranges = {
14402 let snapshot = this.buffer.read(cx).read(cx);
14403 this.selections
14404 .disjoint_anchors()
14405 .iter()
14406 .map(|selection| {
14407 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14408 })
14409 .collect::<Vec<_>>()
14410 };
14411
14412 if text.is_empty() {
14413 this.unmark_text(cx);
14414 } else {
14415 this.highlight_text::<InputComposition>(
14416 marked_ranges.clone(),
14417 HighlightStyle {
14418 underline: Some(UnderlineStyle {
14419 thickness: px(1.),
14420 color: None,
14421 wavy: false,
14422 }),
14423 ..Default::default()
14424 },
14425 cx,
14426 );
14427 }
14428
14429 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14430 let use_autoclose = this.use_autoclose;
14431 let use_auto_surround = this.use_auto_surround;
14432 this.set_use_autoclose(false);
14433 this.set_use_auto_surround(false);
14434 this.handle_input(text, cx);
14435 this.set_use_autoclose(use_autoclose);
14436 this.set_use_auto_surround(use_auto_surround);
14437
14438 if let Some(new_selected_range) = new_selected_range_utf16 {
14439 let snapshot = this.buffer.read(cx).read(cx);
14440 let new_selected_ranges = marked_ranges
14441 .into_iter()
14442 .map(|marked_range| {
14443 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14444 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14445 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14446 snapshot.clip_offset_utf16(new_start, Bias::Left)
14447 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14448 })
14449 .collect::<Vec<_>>();
14450
14451 drop(snapshot);
14452 this.change_selections(None, cx, |selections| {
14453 selections.select_ranges(new_selected_ranges)
14454 });
14455 }
14456 });
14457
14458 self.ime_transaction = self.ime_transaction.or(transaction);
14459 if let Some(transaction) = self.ime_transaction {
14460 self.buffer.update(cx, |buffer, cx| {
14461 buffer.group_until_transaction(transaction, cx);
14462 });
14463 }
14464
14465 if self.text_highlights::<InputComposition>(cx).is_none() {
14466 self.ime_transaction.take();
14467 }
14468 }
14469
14470 fn bounds_for_range(
14471 &mut self,
14472 range_utf16: Range<usize>,
14473 element_bounds: gpui::Bounds<Pixels>,
14474 cx: &mut ViewContext<Self>,
14475 ) -> Option<gpui::Bounds<Pixels>> {
14476 let text_layout_details = self.text_layout_details(cx);
14477 let style = &text_layout_details.editor_style;
14478 let font_id = cx.text_system().resolve_font(&style.text.font());
14479 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14480 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14481
14482 let em_width = cx
14483 .text_system()
14484 .typographic_bounds(font_id, font_size, 'm')
14485 .unwrap()
14486 .size
14487 .width;
14488
14489 let snapshot = self.snapshot(cx);
14490 let scroll_position = snapshot.scroll_position();
14491 let scroll_left = scroll_position.x * em_width;
14492
14493 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14494 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14495 + self.gutter_dimensions.width;
14496 let y = line_height * (start.row().as_f32() - scroll_position.y);
14497
14498 Some(Bounds {
14499 origin: element_bounds.origin + point(x, y),
14500 size: size(em_width, line_height),
14501 })
14502 }
14503}
14504
14505trait SelectionExt {
14506 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14507 fn spanned_rows(
14508 &self,
14509 include_end_if_at_line_start: bool,
14510 map: &DisplaySnapshot,
14511 ) -> Range<MultiBufferRow>;
14512}
14513
14514impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14515 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14516 let start = self
14517 .start
14518 .to_point(&map.buffer_snapshot)
14519 .to_display_point(map);
14520 let end = self
14521 .end
14522 .to_point(&map.buffer_snapshot)
14523 .to_display_point(map);
14524 if self.reversed {
14525 end..start
14526 } else {
14527 start..end
14528 }
14529 }
14530
14531 fn spanned_rows(
14532 &self,
14533 include_end_if_at_line_start: bool,
14534 map: &DisplaySnapshot,
14535 ) -> Range<MultiBufferRow> {
14536 let start = self.start.to_point(&map.buffer_snapshot);
14537 let mut end = self.end.to_point(&map.buffer_snapshot);
14538 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14539 end.row -= 1;
14540 }
14541
14542 let buffer_start = map.prev_line_boundary(start).0;
14543 let buffer_end = map.next_line_boundary(end).0;
14544 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14545 }
14546}
14547
14548impl<T: InvalidationRegion> InvalidationStack<T> {
14549 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14550 where
14551 S: Clone + ToOffset,
14552 {
14553 while let Some(region) = self.last() {
14554 let all_selections_inside_invalidation_ranges =
14555 if selections.len() == region.ranges().len() {
14556 selections
14557 .iter()
14558 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14559 .all(|(selection, invalidation_range)| {
14560 let head = selection.head().to_offset(buffer);
14561 invalidation_range.start <= head && invalidation_range.end >= head
14562 })
14563 } else {
14564 false
14565 };
14566
14567 if all_selections_inside_invalidation_ranges {
14568 break;
14569 } else {
14570 self.pop();
14571 }
14572 }
14573 }
14574}
14575
14576impl<T> Default for InvalidationStack<T> {
14577 fn default() -> Self {
14578 Self(Default::default())
14579 }
14580}
14581
14582impl<T> Deref for InvalidationStack<T> {
14583 type Target = Vec<T>;
14584
14585 fn deref(&self) -> &Self::Target {
14586 &self.0
14587 }
14588}
14589
14590impl<T> DerefMut for InvalidationStack<T> {
14591 fn deref_mut(&mut self) -> &mut Self::Target {
14592 &mut self.0
14593 }
14594}
14595
14596impl InvalidationRegion for SnippetState {
14597 fn ranges(&self) -> &[Range<Anchor>] {
14598 &self.ranges[self.active_index]
14599 }
14600}
14601
14602pub fn diagnostic_block_renderer(
14603 diagnostic: Diagnostic,
14604 max_message_rows: Option<u8>,
14605 allow_closing: bool,
14606 _is_valid: bool,
14607) -> RenderBlock {
14608 let (text_without_backticks, code_ranges) =
14609 highlight_diagnostic_message(&diagnostic, max_message_rows);
14610
14611 Box::new(move |cx: &mut BlockContext| {
14612 let group_id: SharedString = cx.block_id.to_string().into();
14613
14614 let mut text_style = cx.text_style().clone();
14615 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14616 let theme_settings = ThemeSettings::get_global(cx);
14617 text_style.font_family = theme_settings.buffer_font.family.clone();
14618 text_style.font_style = theme_settings.buffer_font.style;
14619 text_style.font_features = theme_settings.buffer_font.features.clone();
14620 text_style.font_weight = theme_settings.buffer_font.weight;
14621
14622 let multi_line_diagnostic = diagnostic.message.contains('\n');
14623
14624 let buttons = |diagnostic: &Diagnostic| {
14625 if multi_line_diagnostic {
14626 v_flex()
14627 } else {
14628 h_flex()
14629 }
14630 .when(allow_closing, |div| {
14631 div.children(diagnostic.is_primary.then(|| {
14632 IconButton::new("close-block", IconName::XCircle)
14633 .icon_color(Color::Muted)
14634 .size(ButtonSize::Compact)
14635 .style(ButtonStyle::Transparent)
14636 .visible_on_hover(group_id.clone())
14637 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14638 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14639 }))
14640 })
14641 .child(
14642 IconButton::new("copy-block", IconName::Copy)
14643 .icon_color(Color::Muted)
14644 .size(ButtonSize::Compact)
14645 .style(ButtonStyle::Transparent)
14646 .visible_on_hover(group_id.clone())
14647 .on_click({
14648 let message = diagnostic.message.clone();
14649 move |_click, cx| {
14650 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14651 }
14652 })
14653 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14654 )
14655 };
14656
14657 let icon_size = buttons(&diagnostic)
14658 .into_any_element()
14659 .layout_as_root(AvailableSpace::min_size(), cx);
14660
14661 h_flex()
14662 .id(cx.block_id)
14663 .group(group_id.clone())
14664 .relative()
14665 .size_full()
14666 .pl(cx.gutter_dimensions.width)
14667 .w(cx.max_width - cx.gutter_dimensions.full_width())
14668 .child(
14669 div()
14670 .flex()
14671 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14672 .flex_shrink(),
14673 )
14674 .child(buttons(&diagnostic))
14675 .child(div().flex().flex_shrink_0().child(
14676 StyledText::new(text_without_backticks.clone()).with_highlights(
14677 &text_style,
14678 code_ranges.iter().map(|range| {
14679 (
14680 range.clone(),
14681 HighlightStyle {
14682 font_weight: Some(FontWeight::BOLD),
14683 ..Default::default()
14684 },
14685 )
14686 }),
14687 ),
14688 ))
14689 .into_any_element()
14690 })
14691}
14692
14693pub fn highlight_diagnostic_message(
14694 diagnostic: &Diagnostic,
14695 mut max_message_rows: Option<u8>,
14696) -> (SharedString, Vec<Range<usize>>) {
14697 let mut text_without_backticks = String::new();
14698 let mut code_ranges = Vec::new();
14699
14700 if let Some(source) = &diagnostic.source {
14701 text_without_backticks.push_str(source);
14702 code_ranges.push(0..source.len());
14703 text_without_backticks.push_str(": ");
14704 }
14705
14706 let mut prev_offset = 0;
14707 let mut in_code_block = false;
14708 let has_row_limit = max_message_rows.is_some();
14709 let mut newline_indices = diagnostic
14710 .message
14711 .match_indices('\n')
14712 .filter(|_| has_row_limit)
14713 .map(|(ix, _)| ix)
14714 .fuse()
14715 .peekable();
14716
14717 for (quote_ix, _) in diagnostic
14718 .message
14719 .match_indices('`')
14720 .chain([(diagnostic.message.len(), "")])
14721 {
14722 let mut first_newline_ix = None;
14723 let mut last_newline_ix = None;
14724 while let Some(newline_ix) = newline_indices.peek() {
14725 if *newline_ix < quote_ix {
14726 if first_newline_ix.is_none() {
14727 first_newline_ix = Some(*newline_ix);
14728 }
14729 last_newline_ix = Some(*newline_ix);
14730
14731 if let Some(rows_left) = &mut max_message_rows {
14732 if *rows_left == 0 {
14733 break;
14734 } else {
14735 *rows_left -= 1;
14736 }
14737 }
14738 let _ = newline_indices.next();
14739 } else {
14740 break;
14741 }
14742 }
14743 let prev_len = text_without_backticks.len();
14744 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14745 text_without_backticks.push_str(new_text);
14746 if in_code_block {
14747 code_ranges.push(prev_len..text_without_backticks.len());
14748 }
14749 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14750 in_code_block = !in_code_block;
14751 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14752 text_without_backticks.push_str("...");
14753 break;
14754 }
14755 }
14756
14757 (text_without_backticks.into(), code_ranges)
14758}
14759
14760fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14761 match severity {
14762 DiagnosticSeverity::ERROR => colors.error,
14763 DiagnosticSeverity::WARNING => colors.warning,
14764 DiagnosticSeverity::INFORMATION => colors.info,
14765 DiagnosticSeverity::HINT => colors.info,
14766 _ => colors.ignored,
14767 }
14768}
14769
14770pub fn styled_runs_for_code_label<'a>(
14771 label: &'a CodeLabel,
14772 syntax_theme: &'a theme::SyntaxTheme,
14773) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14774 let fade_out = HighlightStyle {
14775 fade_out: Some(0.35),
14776 ..Default::default()
14777 };
14778
14779 let mut prev_end = label.filter_range.end;
14780 label
14781 .runs
14782 .iter()
14783 .enumerate()
14784 .flat_map(move |(ix, (range, highlight_id))| {
14785 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14786 style
14787 } else {
14788 return Default::default();
14789 };
14790 let mut muted_style = style;
14791 muted_style.highlight(fade_out);
14792
14793 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14794 if range.start >= label.filter_range.end {
14795 if range.start > prev_end {
14796 runs.push((prev_end..range.start, fade_out));
14797 }
14798 runs.push((range.clone(), muted_style));
14799 } else if range.end <= label.filter_range.end {
14800 runs.push((range.clone(), style));
14801 } else {
14802 runs.push((range.start..label.filter_range.end, style));
14803 runs.push((label.filter_range.end..range.end, muted_style));
14804 }
14805 prev_end = cmp::max(prev_end, range.end);
14806
14807 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14808 runs.push((prev_end..label.text.len(), fade_out));
14809 }
14810
14811 runs
14812 })
14813}
14814
14815pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14816 let mut prev_index = 0;
14817 let mut prev_codepoint: Option<char> = None;
14818 text.char_indices()
14819 .chain([(text.len(), '\0')])
14820 .filter_map(move |(index, codepoint)| {
14821 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14822 let is_boundary = index == text.len()
14823 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14824 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14825 if is_boundary {
14826 let chunk = &text[prev_index..index];
14827 prev_index = index;
14828 Some(chunk)
14829 } else {
14830 None
14831 }
14832 })
14833}
14834
14835pub trait RangeToAnchorExt: Sized {
14836 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14837
14838 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14839 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14840 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14841 }
14842}
14843
14844impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14845 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14846 let start_offset = self.start.to_offset(snapshot);
14847 let end_offset = self.end.to_offset(snapshot);
14848 if start_offset == end_offset {
14849 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14850 } else {
14851 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14852 }
14853 }
14854}
14855
14856pub trait RowExt {
14857 fn as_f32(&self) -> f32;
14858
14859 fn next_row(&self) -> Self;
14860
14861 fn previous_row(&self) -> Self;
14862
14863 fn minus(&self, other: Self) -> u32;
14864}
14865
14866impl RowExt for DisplayRow {
14867 fn as_f32(&self) -> f32 {
14868 self.0 as f32
14869 }
14870
14871 fn next_row(&self) -> Self {
14872 Self(self.0 + 1)
14873 }
14874
14875 fn previous_row(&self) -> Self {
14876 Self(self.0.saturating_sub(1))
14877 }
14878
14879 fn minus(&self, other: Self) -> u32 {
14880 self.0 - other.0
14881 }
14882}
14883
14884impl RowExt for MultiBufferRow {
14885 fn as_f32(&self) -> f32 {
14886 self.0 as f32
14887 }
14888
14889 fn next_row(&self) -> Self {
14890 Self(self.0 + 1)
14891 }
14892
14893 fn previous_row(&self) -> Self {
14894 Self(self.0.saturating_sub(1))
14895 }
14896
14897 fn minus(&self, other: Self) -> u32 {
14898 self.0 - other.0
14899 }
14900}
14901
14902trait RowRangeExt {
14903 type Row;
14904
14905 fn len(&self) -> usize;
14906
14907 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14908}
14909
14910impl RowRangeExt for Range<MultiBufferRow> {
14911 type Row = MultiBufferRow;
14912
14913 fn len(&self) -> usize {
14914 (self.end.0 - self.start.0) as usize
14915 }
14916
14917 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14918 (self.start.0..self.end.0).map(MultiBufferRow)
14919 }
14920}
14921
14922impl RowRangeExt for Range<DisplayRow> {
14923 type Row = DisplayRow;
14924
14925 fn len(&self) -> usize {
14926 (self.end.0 - self.start.0) as usize
14927 }
14928
14929 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14930 (self.start.0..self.end.0).map(DisplayRow)
14931 }
14932}
14933
14934fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14935 if hunk.diff_base_byte_range.is_empty() {
14936 DiffHunkStatus::Added
14937 } else if hunk.row_range.is_empty() {
14938 DiffHunkStatus::Removed
14939 } else {
14940 DiffHunkStatus::Modified
14941 }
14942}
14943
14944/// If select range has more than one line, we
14945/// just point the cursor to range.start.
14946fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14947 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14948 range
14949 } else {
14950 range.start..range.start
14951 }
14952}
14953
14954const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);