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 let Some(provider) = self.inline_completion_provider() {
2514 if let Some(show_inline_completions) = self.show_inline_completions_override {
2515 show_inline_completions
2516 } else {
2517 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2518 }
2519 } else {
2520 false
2521 }
2522 }
2523
2524 pub fn set_use_modal_editing(&mut self, to: bool) {
2525 self.use_modal_editing = to;
2526 }
2527
2528 pub fn use_modal_editing(&self) -> bool {
2529 self.use_modal_editing
2530 }
2531
2532 fn selections_did_change(
2533 &mut self,
2534 local: bool,
2535 old_cursor_position: &Anchor,
2536 show_completions: bool,
2537 cx: &mut ViewContext<Self>,
2538 ) {
2539 cx.invalidate_character_coordinates();
2540
2541 // Copy selections to primary selection buffer
2542 #[cfg(target_os = "linux")]
2543 if local {
2544 let selections = self.selections.all::<usize>(cx);
2545 let buffer_handle = self.buffer.read(cx).read(cx);
2546
2547 let mut text = String::new();
2548 for (index, selection) in selections.iter().enumerate() {
2549 let text_for_selection = buffer_handle
2550 .text_for_range(selection.start..selection.end)
2551 .collect::<String>();
2552
2553 text.push_str(&text_for_selection);
2554 if index != selections.len() - 1 {
2555 text.push('\n');
2556 }
2557 }
2558
2559 if !text.is_empty() {
2560 cx.write_to_primary(ClipboardItem::new_string(text));
2561 }
2562 }
2563
2564 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2565 self.buffer.update(cx, |buffer, cx| {
2566 buffer.set_active_selections(
2567 &self.selections.disjoint_anchors(),
2568 self.selections.line_mode,
2569 self.cursor_shape,
2570 cx,
2571 )
2572 });
2573 }
2574 let display_map = self
2575 .display_map
2576 .update(cx, |display_map, cx| display_map.snapshot(cx));
2577 let buffer = &display_map.buffer_snapshot;
2578 self.add_selections_state = None;
2579 self.select_next_state = None;
2580 self.select_prev_state = None;
2581 self.select_larger_syntax_node_stack.clear();
2582 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2583 self.snippet_stack
2584 .invalidate(&self.selections.disjoint_anchors(), buffer);
2585 self.take_rename(false, cx);
2586
2587 let new_cursor_position = self.selections.newest_anchor().head();
2588
2589 self.push_to_nav_history(
2590 *old_cursor_position,
2591 Some(new_cursor_position.to_point(buffer)),
2592 cx,
2593 );
2594
2595 if local {
2596 let new_cursor_position = self.selections.newest_anchor().head();
2597 let mut context_menu = self.context_menu.write();
2598 let completion_menu = match context_menu.as_ref() {
2599 Some(ContextMenu::Completions(menu)) => Some(menu),
2600
2601 _ => {
2602 *context_menu = None;
2603 None
2604 }
2605 };
2606
2607 if let Some(completion_menu) = completion_menu {
2608 let cursor_position = new_cursor_position.to_offset(buffer);
2609 let (word_range, kind) =
2610 buffer.surrounding_word(completion_menu.initial_position, true);
2611 if kind == Some(CharKind::Word)
2612 && word_range.to_inclusive().contains(&cursor_position)
2613 {
2614 let mut completion_menu = completion_menu.clone();
2615 drop(context_menu);
2616
2617 let query = Self::completion_query(buffer, cursor_position);
2618 cx.spawn(move |this, mut cx| async move {
2619 completion_menu
2620 .filter(query.as_deref(), cx.background_executor().clone())
2621 .await;
2622
2623 this.update(&mut cx, |this, cx| {
2624 let mut context_menu = this.context_menu.write();
2625 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2626 return;
2627 };
2628
2629 if menu.id > completion_menu.id {
2630 return;
2631 }
2632
2633 *context_menu = Some(ContextMenu::Completions(completion_menu));
2634 drop(context_menu);
2635 cx.notify();
2636 })
2637 })
2638 .detach();
2639
2640 if show_completions {
2641 self.show_completions(&ShowCompletions { trigger: None }, cx);
2642 }
2643 } else {
2644 drop(context_menu);
2645 self.hide_context_menu(cx);
2646 }
2647 } else {
2648 drop(context_menu);
2649 }
2650
2651 hide_hover(self, cx);
2652
2653 if old_cursor_position.to_display_point(&display_map).row()
2654 != new_cursor_position.to_display_point(&display_map).row()
2655 {
2656 self.available_code_actions.take();
2657 }
2658 self.refresh_code_actions(cx);
2659 self.refresh_document_highlights(cx);
2660 refresh_matching_bracket_highlights(self, cx);
2661 self.discard_inline_completion(false, cx);
2662 linked_editing_ranges::refresh_linked_ranges(self, cx);
2663 if self.git_blame_inline_enabled {
2664 self.start_inline_blame_timer(cx);
2665 }
2666 }
2667
2668 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2669 cx.emit(EditorEvent::SelectionsChanged { local });
2670
2671 if self.selections.disjoint_anchors().len() == 1 {
2672 cx.emit(SearchEvent::ActiveMatchChanged)
2673 }
2674 cx.notify();
2675 }
2676
2677 pub fn change_selections<R>(
2678 &mut self,
2679 autoscroll: Option<Autoscroll>,
2680 cx: &mut ViewContext<Self>,
2681 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2682 ) -> R {
2683 self.change_selections_inner(autoscroll, true, cx, change)
2684 }
2685
2686 pub fn change_selections_inner<R>(
2687 &mut self,
2688 autoscroll: Option<Autoscroll>,
2689 request_completions: bool,
2690 cx: &mut ViewContext<Self>,
2691 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2692 ) -> R {
2693 let old_cursor_position = self.selections.newest_anchor().head();
2694 self.push_to_selection_history();
2695
2696 let (changed, result) = self.selections.change_with(cx, change);
2697
2698 if changed {
2699 if let Some(autoscroll) = autoscroll {
2700 self.request_autoscroll(autoscroll, cx);
2701 }
2702 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2703
2704 if self.should_open_signature_help_automatically(
2705 &old_cursor_position,
2706 self.signature_help_state.backspace_pressed(),
2707 cx,
2708 ) {
2709 self.show_signature_help(&ShowSignatureHelp, cx);
2710 }
2711 self.signature_help_state.set_backspace_pressed(false);
2712 }
2713
2714 result
2715 }
2716
2717 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2718 where
2719 I: IntoIterator<Item = (Range<S>, T)>,
2720 S: ToOffset,
2721 T: Into<Arc<str>>,
2722 {
2723 if self.read_only(cx) {
2724 return;
2725 }
2726
2727 self.buffer
2728 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2729 }
2730
2731 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2732 where
2733 I: IntoIterator<Item = (Range<S>, T)>,
2734 S: ToOffset,
2735 T: Into<Arc<str>>,
2736 {
2737 if self.read_only(cx) {
2738 return;
2739 }
2740
2741 self.buffer.update(cx, |buffer, cx| {
2742 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2743 });
2744 }
2745
2746 pub fn edit_with_block_indent<I, S, T>(
2747 &mut self,
2748 edits: I,
2749 original_indent_columns: Vec<u32>,
2750 cx: &mut ViewContext<Self>,
2751 ) where
2752 I: IntoIterator<Item = (Range<S>, T)>,
2753 S: ToOffset,
2754 T: Into<Arc<str>>,
2755 {
2756 if self.read_only(cx) {
2757 return;
2758 }
2759
2760 self.buffer.update(cx, |buffer, cx| {
2761 buffer.edit(
2762 edits,
2763 Some(AutoindentMode::Block {
2764 original_indent_columns,
2765 }),
2766 cx,
2767 )
2768 });
2769 }
2770
2771 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2772 self.hide_context_menu(cx);
2773
2774 match phase {
2775 SelectPhase::Begin {
2776 position,
2777 add,
2778 click_count,
2779 } => self.begin_selection(position, add, click_count, cx),
2780 SelectPhase::BeginColumnar {
2781 position,
2782 goal_column,
2783 reset,
2784 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2785 SelectPhase::Extend {
2786 position,
2787 click_count,
2788 } => self.extend_selection(position, click_count, cx),
2789 SelectPhase::Update {
2790 position,
2791 goal_column,
2792 scroll_delta,
2793 } => self.update_selection(position, goal_column, scroll_delta, cx),
2794 SelectPhase::End => self.end_selection(cx),
2795 }
2796 }
2797
2798 fn extend_selection(
2799 &mut self,
2800 position: DisplayPoint,
2801 click_count: usize,
2802 cx: &mut ViewContext<Self>,
2803 ) {
2804 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2805 let tail = self.selections.newest::<usize>(cx).tail();
2806 self.begin_selection(position, false, click_count, cx);
2807
2808 let position = position.to_offset(&display_map, Bias::Left);
2809 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2810
2811 let mut pending_selection = self
2812 .selections
2813 .pending_anchor()
2814 .expect("extend_selection not called with pending selection");
2815 if position >= tail {
2816 pending_selection.start = tail_anchor;
2817 } else {
2818 pending_selection.end = tail_anchor;
2819 pending_selection.reversed = true;
2820 }
2821
2822 let mut pending_mode = self.selections.pending_mode().unwrap();
2823 match &mut pending_mode {
2824 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2825 _ => {}
2826 }
2827
2828 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2829 s.set_pending(pending_selection, pending_mode)
2830 });
2831 }
2832
2833 fn begin_selection(
2834 &mut self,
2835 position: DisplayPoint,
2836 add: bool,
2837 click_count: usize,
2838 cx: &mut ViewContext<Self>,
2839 ) {
2840 if !self.focus_handle.is_focused(cx) {
2841 self.last_focused_descendant = None;
2842 cx.focus(&self.focus_handle);
2843 }
2844
2845 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2846 let buffer = &display_map.buffer_snapshot;
2847 let newest_selection = self.selections.newest_anchor().clone();
2848 let position = display_map.clip_point(position, Bias::Left);
2849
2850 let start;
2851 let end;
2852 let mode;
2853 let auto_scroll;
2854 match click_count {
2855 1 => {
2856 start = buffer.anchor_before(position.to_point(&display_map));
2857 end = start;
2858 mode = SelectMode::Character;
2859 auto_scroll = true;
2860 }
2861 2 => {
2862 let range = movement::surrounding_word(&display_map, position);
2863 start = buffer.anchor_before(range.start.to_point(&display_map));
2864 end = buffer.anchor_before(range.end.to_point(&display_map));
2865 mode = SelectMode::Word(start..end);
2866 auto_scroll = true;
2867 }
2868 3 => {
2869 let position = display_map
2870 .clip_point(position, Bias::Left)
2871 .to_point(&display_map);
2872 let line_start = display_map.prev_line_boundary(position).0;
2873 let next_line_start = buffer.clip_point(
2874 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2875 Bias::Left,
2876 );
2877 start = buffer.anchor_before(line_start);
2878 end = buffer.anchor_before(next_line_start);
2879 mode = SelectMode::Line(start..end);
2880 auto_scroll = true;
2881 }
2882 _ => {
2883 start = buffer.anchor_before(0);
2884 end = buffer.anchor_before(buffer.len());
2885 mode = SelectMode::All;
2886 auto_scroll = false;
2887 }
2888 }
2889
2890 let point_to_delete: Option<usize> = {
2891 let selected_points: Vec<Selection<Point>> =
2892 self.selections.disjoint_in_range(start..end, cx);
2893
2894 if !add || click_count > 1 {
2895 None
2896 } else if !selected_points.is_empty() {
2897 Some(selected_points[0].id)
2898 } else {
2899 let clicked_point_already_selected =
2900 self.selections.disjoint.iter().find(|selection| {
2901 selection.start.to_point(buffer) == start.to_point(buffer)
2902 || selection.end.to_point(buffer) == end.to_point(buffer)
2903 });
2904
2905 clicked_point_already_selected.map(|selection| selection.id)
2906 }
2907 };
2908
2909 let selections_count = self.selections.count();
2910
2911 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2912 if let Some(point_to_delete) = point_to_delete {
2913 s.delete(point_to_delete);
2914
2915 if selections_count == 1 {
2916 s.set_pending_anchor_range(start..end, mode);
2917 }
2918 } else {
2919 if !add {
2920 s.clear_disjoint();
2921 } else if click_count > 1 {
2922 s.delete(newest_selection.id)
2923 }
2924
2925 s.set_pending_anchor_range(start..end, mode);
2926 }
2927 });
2928 }
2929
2930 fn begin_columnar_selection(
2931 &mut self,
2932 position: DisplayPoint,
2933 goal_column: u32,
2934 reset: bool,
2935 cx: &mut ViewContext<Self>,
2936 ) {
2937 if !self.focus_handle.is_focused(cx) {
2938 self.last_focused_descendant = None;
2939 cx.focus(&self.focus_handle);
2940 }
2941
2942 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2943
2944 if reset {
2945 let pointer_position = display_map
2946 .buffer_snapshot
2947 .anchor_before(position.to_point(&display_map));
2948
2949 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2950 s.clear_disjoint();
2951 s.set_pending_anchor_range(
2952 pointer_position..pointer_position,
2953 SelectMode::Character,
2954 );
2955 });
2956 }
2957
2958 let tail = self.selections.newest::<Point>(cx).tail();
2959 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2960
2961 if !reset {
2962 self.select_columns(
2963 tail.to_display_point(&display_map),
2964 position,
2965 goal_column,
2966 &display_map,
2967 cx,
2968 );
2969 }
2970 }
2971
2972 fn update_selection(
2973 &mut self,
2974 position: DisplayPoint,
2975 goal_column: u32,
2976 scroll_delta: gpui::Point<f32>,
2977 cx: &mut ViewContext<Self>,
2978 ) {
2979 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2980
2981 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2982 let tail = tail.to_display_point(&display_map);
2983 self.select_columns(tail, position, goal_column, &display_map, cx);
2984 } else if let Some(mut pending) = self.selections.pending_anchor() {
2985 let buffer = self.buffer.read(cx).snapshot(cx);
2986 let head;
2987 let tail;
2988 let mode = self.selections.pending_mode().unwrap();
2989 match &mode {
2990 SelectMode::Character => {
2991 head = position.to_point(&display_map);
2992 tail = pending.tail().to_point(&buffer);
2993 }
2994 SelectMode::Word(original_range) => {
2995 let original_display_range = original_range.start.to_display_point(&display_map)
2996 ..original_range.end.to_display_point(&display_map);
2997 let original_buffer_range = original_display_range.start.to_point(&display_map)
2998 ..original_display_range.end.to_point(&display_map);
2999 if movement::is_inside_word(&display_map, position)
3000 || original_display_range.contains(&position)
3001 {
3002 let word_range = movement::surrounding_word(&display_map, position);
3003 if word_range.start < original_display_range.start {
3004 head = word_range.start.to_point(&display_map);
3005 } else {
3006 head = word_range.end.to_point(&display_map);
3007 }
3008 } else {
3009 head = position.to_point(&display_map);
3010 }
3011
3012 if head <= original_buffer_range.start {
3013 tail = original_buffer_range.end;
3014 } else {
3015 tail = original_buffer_range.start;
3016 }
3017 }
3018 SelectMode::Line(original_range) => {
3019 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3020
3021 let position = display_map
3022 .clip_point(position, Bias::Left)
3023 .to_point(&display_map);
3024 let line_start = display_map.prev_line_boundary(position).0;
3025 let next_line_start = buffer.clip_point(
3026 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3027 Bias::Left,
3028 );
3029
3030 if line_start < original_range.start {
3031 head = line_start
3032 } else {
3033 head = next_line_start
3034 }
3035
3036 if head <= original_range.start {
3037 tail = original_range.end;
3038 } else {
3039 tail = original_range.start;
3040 }
3041 }
3042 SelectMode::All => {
3043 return;
3044 }
3045 };
3046
3047 if head < tail {
3048 pending.start = buffer.anchor_before(head);
3049 pending.end = buffer.anchor_before(tail);
3050 pending.reversed = true;
3051 } else {
3052 pending.start = buffer.anchor_before(tail);
3053 pending.end = buffer.anchor_before(head);
3054 pending.reversed = false;
3055 }
3056
3057 self.change_selections(None, cx, |s| {
3058 s.set_pending(pending, mode);
3059 });
3060 } else {
3061 log::error!("update_selection dispatched with no pending selection");
3062 return;
3063 }
3064
3065 self.apply_scroll_delta(scroll_delta, cx);
3066 cx.notify();
3067 }
3068
3069 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3070 self.columnar_selection_tail.take();
3071 if self.selections.pending_anchor().is_some() {
3072 let selections = self.selections.all::<usize>(cx);
3073 self.change_selections(None, cx, |s| {
3074 s.select(selections);
3075 s.clear_pending();
3076 });
3077 }
3078 }
3079
3080 fn select_columns(
3081 &mut self,
3082 tail: DisplayPoint,
3083 head: DisplayPoint,
3084 goal_column: u32,
3085 display_map: &DisplaySnapshot,
3086 cx: &mut ViewContext<Self>,
3087 ) {
3088 let start_row = cmp::min(tail.row(), head.row());
3089 let end_row = cmp::max(tail.row(), head.row());
3090 let start_column = cmp::min(tail.column(), goal_column);
3091 let end_column = cmp::max(tail.column(), goal_column);
3092 let reversed = start_column < tail.column();
3093
3094 let selection_ranges = (start_row.0..=end_row.0)
3095 .map(DisplayRow)
3096 .filter_map(|row| {
3097 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3098 let start = display_map
3099 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3100 .to_point(display_map);
3101 let end = display_map
3102 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3103 .to_point(display_map);
3104 if reversed {
3105 Some(end..start)
3106 } else {
3107 Some(start..end)
3108 }
3109 } else {
3110 None
3111 }
3112 })
3113 .collect::<Vec<_>>();
3114
3115 self.change_selections(None, cx, |s| {
3116 s.select_ranges(selection_ranges);
3117 });
3118 cx.notify();
3119 }
3120
3121 pub fn has_pending_nonempty_selection(&self) -> bool {
3122 let pending_nonempty_selection = match self.selections.pending_anchor() {
3123 Some(Selection { start, end, .. }) => start != end,
3124 None => false,
3125 };
3126
3127 pending_nonempty_selection
3128 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3129 }
3130
3131 pub fn has_pending_selection(&self) -> bool {
3132 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3133 }
3134
3135 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3136 if self.clear_expanded_diff_hunks(cx) {
3137 cx.notify();
3138 return;
3139 }
3140 if self.dismiss_menus_and_popups(true, cx) {
3141 return;
3142 }
3143
3144 if self.mode == EditorMode::Full
3145 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3146 {
3147 return;
3148 }
3149
3150 cx.propagate();
3151 }
3152
3153 pub fn dismiss_menus_and_popups(
3154 &mut self,
3155 should_report_inline_completion_event: bool,
3156 cx: &mut ViewContext<Self>,
3157 ) -> bool {
3158 if self.take_rename(false, cx).is_some() {
3159 return true;
3160 }
3161
3162 if hide_hover(self, cx) {
3163 return true;
3164 }
3165
3166 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3167 return true;
3168 }
3169
3170 if self.hide_context_menu(cx).is_some() {
3171 return true;
3172 }
3173
3174 if self.mouse_context_menu.take().is_some() {
3175 return true;
3176 }
3177
3178 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3179 return true;
3180 }
3181
3182 if self.snippet_stack.pop().is_some() {
3183 return true;
3184 }
3185
3186 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3187 self.dismiss_diagnostics(cx);
3188 return true;
3189 }
3190
3191 false
3192 }
3193
3194 fn linked_editing_ranges_for(
3195 &self,
3196 selection: Range<text::Anchor>,
3197 cx: &AppContext,
3198 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3199 if self.linked_edit_ranges.is_empty() {
3200 return None;
3201 }
3202 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3203 selection.end.buffer_id.and_then(|end_buffer_id| {
3204 if selection.start.buffer_id != Some(end_buffer_id) {
3205 return None;
3206 }
3207 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3208 let snapshot = buffer.read(cx).snapshot();
3209 self.linked_edit_ranges
3210 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3211 .map(|ranges| (ranges, snapshot, buffer))
3212 })?;
3213 use text::ToOffset as TO;
3214 // find offset from the start of current range to current cursor position
3215 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3216
3217 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3218 let start_difference = start_offset - start_byte_offset;
3219 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3220 let end_difference = end_offset - start_byte_offset;
3221 // Current range has associated linked ranges.
3222 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3223 for range in linked_ranges.iter() {
3224 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3225 let end_offset = start_offset + end_difference;
3226 let start_offset = start_offset + start_difference;
3227 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3228 continue;
3229 }
3230 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3231 if s.start.buffer_id != selection.start.buffer_id
3232 || s.end.buffer_id != selection.end.buffer_id
3233 {
3234 return false;
3235 }
3236 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3237 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3238 }) {
3239 continue;
3240 }
3241 let start = buffer_snapshot.anchor_after(start_offset);
3242 let end = buffer_snapshot.anchor_after(end_offset);
3243 linked_edits
3244 .entry(buffer.clone())
3245 .or_default()
3246 .push(start..end);
3247 }
3248 Some(linked_edits)
3249 }
3250
3251 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3252 let text: Arc<str> = text.into();
3253
3254 if self.read_only(cx) {
3255 return;
3256 }
3257
3258 let selections = self.selections.all_adjusted(cx);
3259 let mut bracket_inserted = false;
3260 let mut edits = Vec::new();
3261 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3262 let mut new_selections = Vec::with_capacity(selections.len());
3263 let mut new_autoclose_regions = Vec::new();
3264 let snapshot = self.buffer.read(cx).read(cx);
3265
3266 for (selection, autoclose_region) in
3267 self.selections_with_autoclose_regions(selections, &snapshot)
3268 {
3269 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3270 // Determine if the inserted text matches the opening or closing
3271 // bracket of any of this language's bracket pairs.
3272 let mut bracket_pair = None;
3273 let mut is_bracket_pair_start = false;
3274 let mut is_bracket_pair_end = false;
3275 if !text.is_empty() {
3276 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3277 // and they are removing the character that triggered IME popup.
3278 for (pair, enabled) in scope.brackets() {
3279 if !pair.close && !pair.surround {
3280 continue;
3281 }
3282
3283 if enabled && pair.start.ends_with(text.as_ref()) {
3284 let prefix_len = pair.start.len() - text.len();
3285 let preceding_text_matches_prefix = prefix_len == 0
3286 || (selection.start.column >= (prefix_len as u32)
3287 && snapshot.contains_str_at(
3288 Point::new(
3289 selection.start.row,
3290 selection.start.column - (prefix_len as u32),
3291 ),
3292 &pair.start[..prefix_len],
3293 ));
3294 if preceding_text_matches_prefix {
3295 bracket_pair = Some(pair.clone());
3296 is_bracket_pair_start = true;
3297 break;
3298 }
3299 }
3300 if pair.end.as_str() == text.as_ref() {
3301 bracket_pair = Some(pair.clone());
3302 is_bracket_pair_end = true;
3303 break;
3304 }
3305 }
3306 }
3307
3308 if let Some(bracket_pair) = bracket_pair {
3309 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3310 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3311 let auto_surround =
3312 self.use_auto_surround && snapshot_settings.use_auto_surround;
3313 if selection.is_empty() {
3314 if is_bracket_pair_start {
3315 // If the inserted text is a suffix of an opening bracket and the
3316 // selection is preceded by the rest of the opening bracket, then
3317 // insert the closing bracket.
3318 let following_text_allows_autoclose = snapshot
3319 .chars_at(selection.start)
3320 .next()
3321 .map_or(true, |c| scope.should_autoclose_before(c));
3322
3323 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3324 && bracket_pair.start.len() == 1
3325 {
3326 let target = bracket_pair.start.chars().next().unwrap();
3327 let current_line_count = snapshot
3328 .reversed_chars_at(selection.start)
3329 .take_while(|&c| c != '\n')
3330 .filter(|&c| c == target)
3331 .count();
3332 current_line_count % 2 == 1
3333 } else {
3334 false
3335 };
3336
3337 if autoclose
3338 && bracket_pair.close
3339 && following_text_allows_autoclose
3340 && !is_closing_quote
3341 {
3342 let anchor = snapshot.anchor_before(selection.end);
3343 new_selections.push((selection.map(|_| anchor), text.len()));
3344 new_autoclose_regions.push((
3345 anchor,
3346 text.len(),
3347 selection.id,
3348 bracket_pair.clone(),
3349 ));
3350 edits.push((
3351 selection.range(),
3352 format!("{}{}", text, bracket_pair.end).into(),
3353 ));
3354 bracket_inserted = true;
3355 continue;
3356 }
3357 }
3358
3359 if let Some(region) = autoclose_region {
3360 // If the selection is followed by an auto-inserted closing bracket,
3361 // then don't insert that closing bracket again; just move the selection
3362 // past the closing bracket.
3363 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3364 && text.as_ref() == region.pair.end.as_str();
3365 if should_skip {
3366 let anchor = snapshot.anchor_after(selection.end);
3367 new_selections
3368 .push((selection.map(|_| anchor), region.pair.end.len()));
3369 continue;
3370 }
3371 }
3372
3373 let always_treat_brackets_as_autoclosed = snapshot
3374 .settings_at(selection.start, cx)
3375 .always_treat_brackets_as_autoclosed;
3376 if always_treat_brackets_as_autoclosed
3377 && is_bracket_pair_end
3378 && snapshot.contains_str_at(selection.end, text.as_ref())
3379 {
3380 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3381 // and the inserted text is a closing bracket and the selection is followed
3382 // by the closing bracket then move the selection past the closing bracket.
3383 let anchor = snapshot.anchor_after(selection.end);
3384 new_selections.push((selection.map(|_| anchor), text.len()));
3385 continue;
3386 }
3387 }
3388 // If an opening bracket is 1 character long and is typed while
3389 // text is selected, then surround that text with the bracket pair.
3390 else if auto_surround
3391 && bracket_pair.surround
3392 && is_bracket_pair_start
3393 && bracket_pair.start.chars().count() == 1
3394 {
3395 edits.push((selection.start..selection.start, text.clone()));
3396 edits.push((
3397 selection.end..selection.end,
3398 bracket_pair.end.as_str().into(),
3399 ));
3400 bracket_inserted = true;
3401 new_selections.push((
3402 Selection {
3403 id: selection.id,
3404 start: snapshot.anchor_after(selection.start),
3405 end: snapshot.anchor_before(selection.end),
3406 reversed: selection.reversed,
3407 goal: selection.goal,
3408 },
3409 0,
3410 ));
3411 continue;
3412 }
3413 }
3414 }
3415
3416 if self.auto_replace_emoji_shortcode
3417 && selection.is_empty()
3418 && text.as_ref().ends_with(':')
3419 {
3420 if let Some(possible_emoji_short_code) =
3421 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3422 {
3423 if !possible_emoji_short_code.is_empty() {
3424 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3425 let emoji_shortcode_start = Point::new(
3426 selection.start.row,
3427 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3428 );
3429
3430 // Remove shortcode from buffer
3431 edits.push((
3432 emoji_shortcode_start..selection.start,
3433 "".to_string().into(),
3434 ));
3435 new_selections.push((
3436 Selection {
3437 id: selection.id,
3438 start: snapshot.anchor_after(emoji_shortcode_start),
3439 end: snapshot.anchor_before(selection.start),
3440 reversed: selection.reversed,
3441 goal: selection.goal,
3442 },
3443 0,
3444 ));
3445
3446 // Insert emoji
3447 let selection_start_anchor = snapshot.anchor_after(selection.start);
3448 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3449 edits.push((selection.start..selection.end, emoji.to_string().into()));
3450
3451 continue;
3452 }
3453 }
3454 }
3455 }
3456
3457 // If not handling any auto-close operation, then just replace the selected
3458 // text with the given input and move the selection to the end of the
3459 // newly inserted text.
3460 let anchor = snapshot.anchor_after(selection.end);
3461 if !self.linked_edit_ranges.is_empty() {
3462 let start_anchor = snapshot.anchor_before(selection.start);
3463
3464 let is_word_char = text.chars().next().map_or(true, |char| {
3465 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3466 classifier.is_word(char)
3467 });
3468
3469 if is_word_char {
3470 if let Some(ranges) = self
3471 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3472 {
3473 for (buffer, edits) in ranges {
3474 linked_edits
3475 .entry(buffer.clone())
3476 .or_default()
3477 .extend(edits.into_iter().map(|range| (range, text.clone())));
3478 }
3479 }
3480 }
3481 }
3482
3483 new_selections.push((selection.map(|_| anchor), 0));
3484 edits.push((selection.start..selection.end, text.clone()));
3485 }
3486
3487 drop(snapshot);
3488
3489 self.transact(cx, |this, cx| {
3490 this.buffer.update(cx, |buffer, cx| {
3491 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3492 });
3493 for (buffer, edits) in linked_edits {
3494 buffer.update(cx, |buffer, cx| {
3495 let snapshot = buffer.snapshot();
3496 let edits = edits
3497 .into_iter()
3498 .map(|(range, text)| {
3499 use text::ToPoint as TP;
3500 let end_point = TP::to_point(&range.end, &snapshot);
3501 let start_point = TP::to_point(&range.start, &snapshot);
3502 (start_point..end_point, text)
3503 })
3504 .sorted_by_key(|(range, _)| range.start)
3505 .collect::<Vec<_>>();
3506 buffer.edit(edits, None, cx);
3507 })
3508 }
3509 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3510 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3511 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3512 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3513 .zip(new_selection_deltas)
3514 .map(|(selection, delta)| Selection {
3515 id: selection.id,
3516 start: selection.start + delta,
3517 end: selection.end + delta,
3518 reversed: selection.reversed,
3519 goal: SelectionGoal::None,
3520 })
3521 .collect::<Vec<_>>();
3522
3523 let mut i = 0;
3524 for (position, delta, selection_id, pair) in new_autoclose_regions {
3525 let position = position.to_offset(&map.buffer_snapshot) + delta;
3526 let start = map.buffer_snapshot.anchor_before(position);
3527 let end = map.buffer_snapshot.anchor_after(position);
3528 while let Some(existing_state) = this.autoclose_regions.get(i) {
3529 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3530 Ordering::Less => i += 1,
3531 Ordering::Greater => break,
3532 Ordering::Equal => {
3533 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3534 Ordering::Less => i += 1,
3535 Ordering::Equal => break,
3536 Ordering::Greater => break,
3537 }
3538 }
3539 }
3540 }
3541 this.autoclose_regions.insert(
3542 i,
3543 AutocloseRegion {
3544 selection_id,
3545 range: start..end,
3546 pair,
3547 },
3548 );
3549 }
3550
3551 let had_active_inline_completion = this.has_active_inline_completion(cx);
3552 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3553 s.select(new_selections)
3554 });
3555
3556 if !bracket_inserted {
3557 if let Some(on_type_format_task) =
3558 this.trigger_on_type_formatting(text.to_string(), cx)
3559 {
3560 on_type_format_task.detach_and_log_err(cx);
3561 }
3562 }
3563
3564 let editor_settings = EditorSettings::get_global(cx);
3565 if bracket_inserted
3566 && (editor_settings.auto_signature_help
3567 || editor_settings.show_signature_help_after_edits)
3568 {
3569 this.show_signature_help(&ShowSignatureHelp, cx);
3570 }
3571
3572 let trigger_in_words = !had_active_inline_completion;
3573 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3574 linked_editing_ranges::refresh_linked_ranges(this, cx);
3575 this.refresh_inline_completion(true, false, cx);
3576 });
3577 }
3578
3579 fn find_possible_emoji_shortcode_at_position(
3580 snapshot: &MultiBufferSnapshot,
3581 position: Point,
3582 ) -> Option<String> {
3583 let mut chars = Vec::new();
3584 let mut found_colon = false;
3585 for char in snapshot.reversed_chars_at(position).take(100) {
3586 // Found a possible emoji shortcode in the middle of the buffer
3587 if found_colon {
3588 if char.is_whitespace() {
3589 chars.reverse();
3590 return Some(chars.iter().collect());
3591 }
3592 // If the previous character is not a whitespace, we are in the middle of a word
3593 // and we only want to complete the shortcode if the word is made up of other emojis
3594 let mut containing_word = String::new();
3595 for ch in snapshot
3596 .reversed_chars_at(position)
3597 .skip(chars.len() + 1)
3598 .take(100)
3599 {
3600 if ch.is_whitespace() {
3601 break;
3602 }
3603 containing_word.push(ch);
3604 }
3605 let containing_word = containing_word.chars().rev().collect::<String>();
3606 if util::word_consists_of_emojis(containing_word.as_str()) {
3607 chars.reverse();
3608 return Some(chars.iter().collect());
3609 }
3610 }
3611
3612 if char.is_whitespace() || !char.is_ascii() {
3613 return None;
3614 }
3615 if char == ':' {
3616 found_colon = true;
3617 } else {
3618 chars.push(char);
3619 }
3620 }
3621 // Found a possible emoji shortcode at the beginning of the buffer
3622 chars.reverse();
3623 Some(chars.iter().collect())
3624 }
3625
3626 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3627 self.transact(cx, |this, cx| {
3628 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3629 let selections = this.selections.all::<usize>(cx);
3630 let multi_buffer = this.buffer.read(cx);
3631 let buffer = multi_buffer.snapshot(cx);
3632 selections
3633 .iter()
3634 .map(|selection| {
3635 let start_point = selection.start.to_point(&buffer);
3636 let mut indent =
3637 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3638 indent.len = cmp::min(indent.len, start_point.column);
3639 let start = selection.start;
3640 let end = selection.end;
3641 let selection_is_empty = start == end;
3642 let language_scope = buffer.language_scope_at(start);
3643 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3644 &language_scope
3645 {
3646 let leading_whitespace_len = buffer
3647 .reversed_chars_at(start)
3648 .take_while(|c| c.is_whitespace() && *c != '\n')
3649 .map(|c| c.len_utf8())
3650 .sum::<usize>();
3651
3652 let trailing_whitespace_len = buffer
3653 .chars_at(end)
3654 .take_while(|c| c.is_whitespace() && *c != '\n')
3655 .map(|c| c.len_utf8())
3656 .sum::<usize>();
3657
3658 let insert_extra_newline =
3659 language.brackets().any(|(pair, enabled)| {
3660 let pair_start = pair.start.trim_end();
3661 let pair_end = pair.end.trim_start();
3662
3663 enabled
3664 && pair.newline
3665 && buffer.contains_str_at(
3666 end + trailing_whitespace_len,
3667 pair_end,
3668 )
3669 && buffer.contains_str_at(
3670 (start - leading_whitespace_len)
3671 .saturating_sub(pair_start.len()),
3672 pair_start,
3673 )
3674 });
3675
3676 // Comment extension on newline is allowed only for cursor selections
3677 let comment_delimiter = maybe!({
3678 if !selection_is_empty {
3679 return None;
3680 }
3681
3682 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3683 return None;
3684 }
3685
3686 let delimiters = language.line_comment_prefixes();
3687 let max_len_of_delimiter =
3688 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3689 let (snapshot, range) =
3690 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3691
3692 let mut index_of_first_non_whitespace = 0;
3693 let comment_candidate = snapshot
3694 .chars_for_range(range)
3695 .skip_while(|c| {
3696 let should_skip = c.is_whitespace();
3697 if should_skip {
3698 index_of_first_non_whitespace += 1;
3699 }
3700 should_skip
3701 })
3702 .take(max_len_of_delimiter)
3703 .collect::<String>();
3704 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3705 comment_candidate.starts_with(comment_prefix.as_ref())
3706 })?;
3707 let cursor_is_placed_after_comment_marker =
3708 index_of_first_non_whitespace + comment_prefix.len()
3709 <= start_point.column as usize;
3710 if cursor_is_placed_after_comment_marker {
3711 Some(comment_prefix.clone())
3712 } else {
3713 None
3714 }
3715 });
3716 (comment_delimiter, insert_extra_newline)
3717 } else {
3718 (None, false)
3719 };
3720
3721 let capacity_for_delimiter = comment_delimiter
3722 .as_deref()
3723 .map(str::len)
3724 .unwrap_or_default();
3725 let mut new_text =
3726 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3727 new_text.push('\n');
3728 new_text.extend(indent.chars());
3729 if let Some(delimiter) = &comment_delimiter {
3730 new_text.push_str(delimiter);
3731 }
3732 if insert_extra_newline {
3733 new_text = new_text.repeat(2);
3734 }
3735
3736 let anchor = buffer.anchor_after(end);
3737 let new_selection = selection.map(|_| anchor);
3738 (
3739 (start..end, new_text),
3740 (insert_extra_newline, new_selection),
3741 )
3742 })
3743 .unzip()
3744 };
3745
3746 this.edit_with_autoindent(edits, cx);
3747 let buffer = this.buffer.read(cx).snapshot(cx);
3748 let new_selections = selection_fixup_info
3749 .into_iter()
3750 .map(|(extra_newline_inserted, new_selection)| {
3751 let mut cursor = new_selection.end.to_point(&buffer);
3752 if extra_newline_inserted {
3753 cursor.row -= 1;
3754 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3755 }
3756 new_selection.map(|_| cursor)
3757 })
3758 .collect();
3759
3760 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3761 this.refresh_inline_completion(true, false, cx);
3762 });
3763 }
3764
3765 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3766 let buffer = self.buffer.read(cx);
3767 let snapshot = buffer.snapshot(cx);
3768
3769 let mut edits = Vec::new();
3770 let mut rows = Vec::new();
3771
3772 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3773 let cursor = selection.head();
3774 let row = cursor.row;
3775
3776 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3777
3778 let newline = "\n".to_string();
3779 edits.push((start_of_line..start_of_line, newline));
3780
3781 rows.push(row + rows_inserted as u32);
3782 }
3783
3784 self.transact(cx, |editor, cx| {
3785 editor.edit(edits, cx);
3786
3787 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3788 let mut index = 0;
3789 s.move_cursors_with(|map, _, _| {
3790 let row = rows[index];
3791 index += 1;
3792
3793 let point = Point::new(row, 0);
3794 let boundary = map.next_line_boundary(point).1;
3795 let clipped = map.clip_point(boundary, Bias::Left);
3796
3797 (clipped, SelectionGoal::None)
3798 });
3799 });
3800
3801 let mut indent_edits = Vec::new();
3802 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3803 for row in rows {
3804 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3805 for (row, indent) in indents {
3806 if indent.len == 0 {
3807 continue;
3808 }
3809
3810 let text = match indent.kind {
3811 IndentKind::Space => " ".repeat(indent.len as usize),
3812 IndentKind::Tab => "\t".repeat(indent.len as usize),
3813 };
3814 let point = Point::new(row.0, 0);
3815 indent_edits.push((point..point, text));
3816 }
3817 }
3818 editor.edit(indent_edits, cx);
3819 });
3820 }
3821
3822 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3823 let buffer = self.buffer.read(cx);
3824 let snapshot = buffer.snapshot(cx);
3825
3826 let mut edits = Vec::new();
3827 let mut rows = Vec::new();
3828 let mut rows_inserted = 0;
3829
3830 for selection in self.selections.all_adjusted(cx) {
3831 let cursor = selection.head();
3832 let row = cursor.row;
3833
3834 let point = Point::new(row + 1, 0);
3835 let start_of_line = snapshot.clip_point(point, Bias::Left);
3836
3837 let newline = "\n".to_string();
3838 edits.push((start_of_line..start_of_line, newline));
3839
3840 rows_inserted += 1;
3841 rows.push(row + rows_inserted);
3842 }
3843
3844 self.transact(cx, |editor, cx| {
3845 editor.edit(edits, cx);
3846
3847 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3848 let mut index = 0;
3849 s.move_cursors_with(|map, _, _| {
3850 let row = rows[index];
3851 index += 1;
3852
3853 let point = Point::new(row, 0);
3854 let boundary = map.next_line_boundary(point).1;
3855 let clipped = map.clip_point(boundary, Bias::Left);
3856
3857 (clipped, SelectionGoal::None)
3858 });
3859 });
3860
3861 let mut indent_edits = Vec::new();
3862 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3863 for row in rows {
3864 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3865 for (row, indent) in indents {
3866 if indent.len == 0 {
3867 continue;
3868 }
3869
3870 let text = match indent.kind {
3871 IndentKind::Space => " ".repeat(indent.len as usize),
3872 IndentKind::Tab => "\t".repeat(indent.len as usize),
3873 };
3874 let point = Point::new(row.0, 0);
3875 indent_edits.push((point..point, text));
3876 }
3877 }
3878 editor.edit(indent_edits, cx);
3879 });
3880 }
3881
3882 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3883 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3884 original_indent_columns: Vec::new(),
3885 });
3886 self.insert_with_autoindent_mode(text, autoindent, cx);
3887 }
3888
3889 fn insert_with_autoindent_mode(
3890 &mut self,
3891 text: &str,
3892 autoindent_mode: Option<AutoindentMode>,
3893 cx: &mut ViewContext<Self>,
3894 ) {
3895 if self.read_only(cx) {
3896 return;
3897 }
3898
3899 let text: Arc<str> = text.into();
3900 self.transact(cx, |this, cx| {
3901 let old_selections = this.selections.all_adjusted(cx);
3902 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3903 let anchors = {
3904 let snapshot = buffer.read(cx);
3905 old_selections
3906 .iter()
3907 .map(|s| {
3908 let anchor = snapshot.anchor_after(s.head());
3909 s.map(|_| anchor)
3910 })
3911 .collect::<Vec<_>>()
3912 };
3913 buffer.edit(
3914 old_selections
3915 .iter()
3916 .map(|s| (s.start..s.end, text.clone())),
3917 autoindent_mode,
3918 cx,
3919 );
3920 anchors
3921 });
3922
3923 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3924 s.select_anchors(selection_anchors);
3925 })
3926 });
3927 }
3928
3929 fn trigger_completion_on_input(
3930 &mut self,
3931 text: &str,
3932 trigger_in_words: bool,
3933 cx: &mut ViewContext<Self>,
3934 ) {
3935 if self.is_completion_trigger(text, trigger_in_words, cx) {
3936 self.show_completions(
3937 &ShowCompletions {
3938 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3939 },
3940 cx,
3941 );
3942 } else {
3943 self.hide_context_menu(cx);
3944 }
3945 }
3946
3947 fn is_completion_trigger(
3948 &self,
3949 text: &str,
3950 trigger_in_words: bool,
3951 cx: &mut ViewContext<Self>,
3952 ) -> bool {
3953 let position = self.selections.newest_anchor().head();
3954 let multibuffer = self.buffer.read(cx);
3955 let Some(buffer) = position
3956 .buffer_id
3957 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3958 else {
3959 return false;
3960 };
3961
3962 if let Some(completion_provider) = &self.completion_provider {
3963 completion_provider.is_completion_trigger(
3964 &buffer,
3965 position.text_anchor,
3966 text,
3967 trigger_in_words,
3968 cx,
3969 )
3970 } else {
3971 false
3972 }
3973 }
3974
3975 /// If any empty selections is touching the start of its innermost containing autoclose
3976 /// region, expand it to select the brackets.
3977 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3978 let selections = self.selections.all::<usize>(cx);
3979 let buffer = self.buffer.read(cx).read(cx);
3980 let new_selections = self
3981 .selections_with_autoclose_regions(selections, &buffer)
3982 .map(|(mut selection, region)| {
3983 if !selection.is_empty() {
3984 return selection;
3985 }
3986
3987 if let Some(region) = region {
3988 let mut range = region.range.to_offset(&buffer);
3989 if selection.start == range.start && range.start >= region.pair.start.len() {
3990 range.start -= region.pair.start.len();
3991 if buffer.contains_str_at(range.start, ®ion.pair.start)
3992 && buffer.contains_str_at(range.end, ®ion.pair.end)
3993 {
3994 range.end += region.pair.end.len();
3995 selection.start = range.start;
3996 selection.end = range.end;
3997
3998 return selection;
3999 }
4000 }
4001 }
4002
4003 let always_treat_brackets_as_autoclosed = buffer
4004 .settings_at(selection.start, cx)
4005 .always_treat_brackets_as_autoclosed;
4006
4007 if !always_treat_brackets_as_autoclosed {
4008 return selection;
4009 }
4010
4011 if let Some(scope) = buffer.language_scope_at(selection.start) {
4012 for (pair, enabled) in scope.brackets() {
4013 if !enabled || !pair.close {
4014 continue;
4015 }
4016
4017 if buffer.contains_str_at(selection.start, &pair.end) {
4018 let pair_start_len = pair.start.len();
4019 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
4020 {
4021 selection.start -= pair_start_len;
4022 selection.end += pair.end.len();
4023
4024 return selection;
4025 }
4026 }
4027 }
4028 }
4029
4030 selection
4031 })
4032 .collect();
4033
4034 drop(buffer);
4035 self.change_selections(None, cx, |selections| selections.select(new_selections));
4036 }
4037
4038 /// Iterate the given selections, and for each one, find the smallest surrounding
4039 /// autoclose region. This uses the ordering of the selections and the autoclose
4040 /// regions to avoid repeated comparisons.
4041 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4042 &'a self,
4043 selections: impl IntoIterator<Item = Selection<D>>,
4044 buffer: &'a MultiBufferSnapshot,
4045 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4046 let mut i = 0;
4047 let mut regions = self.autoclose_regions.as_slice();
4048 selections.into_iter().map(move |selection| {
4049 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4050
4051 let mut enclosing = None;
4052 while let Some(pair_state) = regions.get(i) {
4053 if pair_state.range.end.to_offset(buffer) < range.start {
4054 regions = ®ions[i + 1..];
4055 i = 0;
4056 } else if pair_state.range.start.to_offset(buffer) > range.end {
4057 break;
4058 } else {
4059 if pair_state.selection_id == selection.id {
4060 enclosing = Some(pair_state);
4061 }
4062 i += 1;
4063 }
4064 }
4065
4066 (selection, enclosing)
4067 })
4068 }
4069
4070 /// Remove any autoclose regions that no longer contain their selection.
4071 fn invalidate_autoclose_regions(
4072 &mut self,
4073 mut selections: &[Selection<Anchor>],
4074 buffer: &MultiBufferSnapshot,
4075 ) {
4076 self.autoclose_regions.retain(|state| {
4077 let mut i = 0;
4078 while let Some(selection) = selections.get(i) {
4079 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4080 selections = &selections[1..];
4081 continue;
4082 }
4083 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4084 break;
4085 }
4086 if selection.id == state.selection_id {
4087 return true;
4088 } else {
4089 i += 1;
4090 }
4091 }
4092 false
4093 });
4094 }
4095
4096 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4097 let offset = position.to_offset(buffer);
4098 let (word_range, kind) = buffer.surrounding_word(offset, true);
4099 if offset > word_range.start && kind == Some(CharKind::Word) {
4100 Some(
4101 buffer
4102 .text_for_range(word_range.start..offset)
4103 .collect::<String>(),
4104 )
4105 } else {
4106 None
4107 }
4108 }
4109
4110 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4111 self.refresh_inlay_hints(
4112 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4113 cx,
4114 );
4115 }
4116
4117 pub fn inlay_hints_enabled(&self) -> bool {
4118 self.inlay_hint_cache.enabled
4119 }
4120
4121 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4122 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4123 return;
4124 }
4125
4126 let reason_description = reason.description();
4127 let ignore_debounce = matches!(
4128 reason,
4129 InlayHintRefreshReason::SettingsChange(_)
4130 | InlayHintRefreshReason::Toggle(_)
4131 | InlayHintRefreshReason::ExcerptsRemoved(_)
4132 );
4133 let (invalidate_cache, required_languages) = match reason {
4134 InlayHintRefreshReason::Toggle(enabled) => {
4135 self.inlay_hint_cache.enabled = enabled;
4136 if enabled {
4137 (InvalidationStrategy::RefreshRequested, None)
4138 } else {
4139 self.inlay_hint_cache.clear();
4140 self.splice_inlays(
4141 self.visible_inlay_hints(cx)
4142 .iter()
4143 .map(|inlay| inlay.id)
4144 .collect(),
4145 Vec::new(),
4146 cx,
4147 );
4148 return;
4149 }
4150 }
4151 InlayHintRefreshReason::SettingsChange(new_settings) => {
4152 match self.inlay_hint_cache.update_settings(
4153 &self.buffer,
4154 new_settings,
4155 self.visible_inlay_hints(cx),
4156 cx,
4157 ) {
4158 ControlFlow::Break(Some(InlaySplice {
4159 to_remove,
4160 to_insert,
4161 })) => {
4162 self.splice_inlays(to_remove, to_insert, cx);
4163 return;
4164 }
4165 ControlFlow::Break(None) => return,
4166 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4167 }
4168 }
4169 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4170 if let Some(InlaySplice {
4171 to_remove,
4172 to_insert,
4173 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4174 {
4175 self.splice_inlays(to_remove, to_insert, cx);
4176 }
4177 return;
4178 }
4179 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4180 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4181 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4182 }
4183 InlayHintRefreshReason::RefreshRequested => {
4184 (InvalidationStrategy::RefreshRequested, None)
4185 }
4186 };
4187
4188 if let Some(InlaySplice {
4189 to_remove,
4190 to_insert,
4191 }) = self.inlay_hint_cache.spawn_hint_refresh(
4192 reason_description,
4193 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4194 invalidate_cache,
4195 ignore_debounce,
4196 cx,
4197 ) {
4198 self.splice_inlays(to_remove, to_insert, cx);
4199 }
4200 }
4201
4202 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4203 self.display_map
4204 .read(cx)
4205 .current_inlays()
4206 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4207 .cloned()
4208 .collect()
4209 }
4210
4211 pub fn excerpts_for_inlay_hints_query(
4212 &self,
4213 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4214 cx: &mut ViewContext<Editor>,
4215 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4216 let Some(project) = self.project.as_ref() else {
4217 return HashMap::default();
4218 };
4219 let project = project.read(cx);
4220 let multi_buffer = self.buffer().read(cx);
4221 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4222 let multi_buffer_visible_start = self
4223 .scroll_manager
4224 .anchor()
4225 .anchor
4226 .to_point(&multi_buffer_snapshot);
4227 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4228 multi_buffer_visible_start
4229 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4230 Bias::Left,
4231 );
4232 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4233 multi_buffer
4234 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4235 .into_iter()
4236 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4237 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4238 let buffer = buffer_handle.read(cx);
4239 let buffer_file = project::File::from_dyn(buffer.file())?;
4240 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4241 let worktree_entry = buffer_worktree
4242 .read(cx)
4243 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4244 if worktree_entry.is_ignored {
4245 return None;
4246 }
4247
4248 let language = buffer.language()?;
4249 if let Some(restrict_to_languages) = restrict_to_languages {
4250 if !restrict_to_languages.contains(language) {
4251 return None;
4252 }
4253 }
4254 Some((
4255 excerpt_id,
4256 (
4257 buffer_handle,
4258 buffer.version().clone(),
4259 excerpt_visible_range,
4260 ),
4261 ))
4262 })
4263 .collect()
4264 }
4265
4266 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4267 TextLayoutDetails {
4268 text_system: cx.text_system().clone(),
4269 editor_style: self.style.clone().unwrap(),
4270 rem_size: cx.rem_size(),
4271 scroll_anchor: self.scroll_manager.anchor(),
4272 visible_rows: self.visible_line_count(),
4273 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4274 }
4275 }
4276
4277 fn splice_inlays(
4278 &self,
4279 to_remove: Vec<InlayId>,
4280 to_insert: Vec<Inlay>,
4281 cx: &mut ViewContext<Self>,
4282 ) {
4283 self.display_map.update(cx, |display_map, cx| {
4284 display_map.splice_inlays(to_remove, to_insert, cx);
4285 });
4286 cx.notify();
4287 }
4288
4289 fn trigger_on_type_formatting(
4290 &self,
4291 input: String,
4292 cx: &mut ViewContext<Self>,
4293 ) -> Option<Task<Result<()>>> {
4294 if input.len() != 1 {
4295 return None;
4296 }
4297
4298 let project = self.project.as_ref()?;
4299 let position = self.selections.newest_anchor().head();
4300 let (buffer, buffer_position) = self
4301 .buffer
4302 .read(cx)
4303 .text_anchor_for_position(position, cx)?;
4304
4305 let settings = language_settings::language_settings(
4306 buffer
4307 .read(cx)
4308 .language_at(buffer_position)
4309 .map(|l| l.name()),
4310 buffer.read(cx).file(),
4311 cx,
4312 );
4313 if !settings.use_on_type_format {
4314 return None;
4315 }
4316
4317 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4318 // hence we do LSP request & edit on host side only — add formats to host's history.
4319 let push_to_lsp_host_history = true;
4320 // If this is not the host, append its history with new edits.
4321 let push_to_client_history = project.read(cx).is_via_collab();
4322
4323 let on_type_formatting = project.update(cx, |project, cx| {
4324 project.on_type_format(
4325 buffer.clone(),
4326 buffer_position,
4327 input,
4328 push_to_lsp_host_history,
4329 cx,
4330 )
4331 });
4332 Some(cx.spawn(|editor, mut cx| async move {
4333 if let Some(transaction) = on_type_formatting.await? {
4334 if push_to_client_history {
4335 buffer
4336 .update(&mut cx, |buffer, _| {
4337 buffer.push_transaction(transaction, Instant::now());
4338 })
4339 .ok();
4340 }
4341 editor.update(&mut cx, |editor, cx| {
4342 editor.refresh_document_highlights(cx);
4343 })?;
4344 }
4345 Ok(())
4346 }))
4347 }
4348
4349 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4350 if self.pending_rename.is_some() {
4351 return;
4352 }
4353
4354 let Some(provider) = self.completion_provider.as_ref() else {
4355 return;
4356 };
4357
4358 let position = self.selections.newest_anchor().head();
4359 let (buffer, buffer_position) =
4360 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4361 output
4362 } else {
4363 return;
4364 };
4365
4366 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4367 let is_followup_invoke = {
4368 let context_menu_state = self.context_menu.read();
4369 matches!(
4370 context_menu_state.deref(),
4371 Some(ContextMenu::Completions(_))
4372 )
4373 };
4374 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4375 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4376 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4377 CompletionTriggerKind::TRIGGER_CHARACTER
4378 }
4379
4380 _ => CompletionTriggerKind::INVOKED,
4381 };
4382 let completion_context = CompletionContext {
4383 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4384 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4385 Some(String::from(trigger))
4386 } else {
4387 None
4388 }
4389 }),
4390 trigger_kind,
4391 };
4392 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4393 let sort_completions = provider.sort_completions();
4394
4395 let id = post_inc(&mut self.next_completion_id);
4396 let task = cx.spawn(|this, mut cx| {
4397 async move {
4398 this.update(&mut cx, |this, _| {
4399 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4400 })?;
4401 let completions = completions.await.log_err();
4402 let menu = if let Some(completions) = completions {
4403 let mut menu = CompletionsMenu {
4404 id,
4405 sort_completions,
4406 initial_position: position,
4407 match_candidates: completions
4408 .iter()
4409 .enumerate()
4410 .map(|(id, completion)| {
4411 StringMatchCandidate::new(
4412 id,
4413 completion.label.text[completion.label.filter_range.clone()]
4414 .into(),
4415 )
4416 })
4417 .collect(),
4418 buffer: buffer.clone(),
4419 completions: Arc::new(RwLock::new(completions.into())),
4420 matches: Vec::new().into(),
4421 selected_item: 0,
4422 scroll_handle: UniformListScrollHandle::new(),
4423 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4424 DebouncedDelay::new(),
4425 )),
4426 };
4427 menu.filter(query.as_deref(), cx.background_executor().clone())
4428 .await;
4429
4430 if menu.matches.is_empty() {
4431 None
4432 } else {
4433 this.update(&mut cx, |editor, cx| {
4434 let completions = menu.completions.clone();
4435 let matches = menu.matches.clone();
4436
4437 let delay_ms = EditorSettings::get_global(cx)
4438 .completion_documentation_secondary_query_debounce;
4439 let delay = Duration::from_millis(delay_ms);
4440 editor
4441 .completion_documentation_pre_resolve_debounce
4442 .fire_new(delay, cx, |editor, cx| {
4443 CompletionsMenu::pre_resolve_completion_documentation(
4444 buffer,
4445 completions,
4446 matches,
4447 editor,
4448 cx,
4449 )
4450 });
4451 })
4452 .ok();
4453 Some(menu)
4454 }
4455 } else {
4456 None
4457 };
4458
4459 this.update(&mut cx, |this, cx| {
4460 let mut context_menu = this.context_menu.write();
4461 match context_menu.as_ref() {
4462 None => {}
4463
4464 Some(ContextMenu::Completions(prev_menu)) => {
4465 if prev_menu.id > id {
4466 return;
4467 }
4468 }
4469
4470 _ => return,
4471 }
4472
4473 if this.focus_handle.is_focused(cx) && menu.is_some() {
4474 let menu = menu.unwrap();
4475 *context_menu = Some(ContextMenu::Completions(menu));
4476 drop(context_menu);
4477 this.discard_inline_completion(false, cx);
4478 cx.notify();
4479 } else if this.completion_tasks.len() <= 1 {
4480 // If there are no more completion tasks and the last menu was
4481 // empty, we should hide it. If it was already hidden, we should
4482 // also show the copilot completion when available.
4483 drop(context_menu);
4484 if this.hide_context_menu(cx).is_none() {
4485 this.update_visible_inline_completion(cx);
4486 }
4487 }
4488 })?;
4489
4490 Ok::<_, anyhow::Error>(())
4491 }
4492 .log_err()
4493 });
4494
4495 self.completion_tasks.push((id, task));
4496 }
4497
4498 pub fn confirm_completion(
4499 &mut self,
4500 action: &ConfirmCompletion,
4501 cx: &mut ViewContext<Self>,
4502 ) -> Option<Task<Result<()>>> {
4503 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4504 }
4505
4506 pub fn compose_completion(
4507 &mut self,
4508 action: &ComposeCompletion,
4509 cx: &mut ViewContext<Self>,
4510 ) -> Option<Task<Result<()>>> {
4511 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4512 }
4513
4514 fn do_completion(
4515 &mut self,
4516 item_ix: Option<usize>,
4517 intent: CompletionIntent,
4518 cx: &mut ViewContext<Editor>,
4519 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4520 use language::ToOffset as _;
4521
4522 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4523 menu
4524 } else {
4525 return None;
4526 };
4527
4528 let mat = completions_menu
4529 .matches
4530 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4531 let buffer_handle = completions_menu.buffer;
4532 let completions = completions_menu.completions.read();
4533 let completion = completions.get(mat.candidate_id)?;
4534 cx.stop_propagation();
4535
4536 let snippet;
4537 let text;
4538
4539 if completion.is_snippet() {
4540 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4541 text = snippet.as_ref().unwrap().text.clone();
4542 } else {
4543 snippet = None;
4544 text = completion.new_text.clone();
4545 };
4546 let selections = self.selections.all::<usize>(cx);
4547 let buffer = buffer_handle.read(cx);
4548 let old_range = completion.old_range.to_offset(buffer);
4549 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4550
4551 let newest_selection = self.selections.newest_anchor();
4552 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4553 return None;
4554 }
4555
4556 let lookbehind = newest_selection
4557 .start
4558 .text_anchor
4559 .to_offset(buffer)
4560 .saturating_sub(old_range.start);
4561 let lookahead = old_range
4562 .end
4563 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4564 let mut common_prefix_len = old_text
4565 .bytes()
4566 .zip(text.bytes())
4567 .take_while(|(a, b)| a == b)
4568 .count();
4569
4570 let snapshot = self.buffer.read(cx).snapshot(cx);
4571 let mut range_to_replace: Option<Range<isize>> = None;
4572 let mut ranges = Vec::new();
4573 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4574 for selection in &selections {
4575 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4576 let start = selection.start.saturating_sub(lookbehind);
4577 let end = selection.end + lookahead;
4578 if selection.id == newest_selection.id {
4579 range_to_replace = Some(
4580 ((start + common_prefix_len) as isize - selection.start as isize)
4581 ..(end as isize - selection.start as isize),
4582 );
4583 }
4584 ranges.push(start + common_prefix_len..end);
4585 } else {
4586 common_prefix_len = 0;
4587 ranges.clear();
4588 ranges.extend(selections.iter().map(|s| {
4589 if s.id == newest_selection.id {
4590 range_to_replace = Some(
4591 old_range.start.to_offset_utf16(&snapshot).0 as isize
4592 - selection.start as isize
4593 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4594 - selection.start as isize,
4595 );
4596 old_range.clone()
4597 } else {
4598 s.start..s.end
4599 }
4600 }));
4601 break;
4602 }
4603 if !self.linked_edit_ranges.is_empty() {
4604 let start_anchor = snapshot.anchor_before(selection.head());
4605 let end_anchor = snapshot.anchor_after(selection.tail());
4606 if let Some(ranges) = self
4607 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4608 {
4609 for (buffer, edits) in ranges {
4610 linked_edits.entry(buffer.clone()).or_default().extend(
4611 edits
4612 .into_iter()
4613 .map(|range| (range, text[common_prefix_len..].to_owned())),
4614 );
4615 }
4616 }
4617 }
4618 }
4619 let text = &text[common_prefix_len..];
4620
4621 cx.emit(EditorEvent::InputHandled {
4622 utf16_range_to_replace: range_to_replace,
4623 text: text.into(),
4624 });
4625
4626 self.transact(cx, |this, cx| {
4627 if let Some(mut snippet) = snippet {
4628 snippet.text = text.to_string();
4629 for tabstop in snippet.tabstops.iter_mut().flatten() {
4630 tabstop.start -= common_prefix_len as isize;
4631 tabstop.end -= common_prefix_len as isize;
4632 }
4633
4634 this.insert_snippet(&ranges, snippet, cx).log_err();
4635 } else {
4636 this.buffer.update(cx, |buffer, cx| {
4637 buffer.edit(
4638 ranges.iter().map(|range| (range.clone(), text)),
4639 this.autoindent_mode.clone(),
4640 cx,
4641 );
4642 });
4643 }
4644 for (buffer, edits) in linked_edits {
4645 buffer.update(cx, |buffer, cx| {
4646 let snapshot = buffer.snapshot();
4647 let edits = edits
4648 .into_iter()
4649 .map(|(range, text)| {
4650 use text::ToPoint as TP;
4651 let end_point = TP::to_point(&range.end, &snapshot);
4652 let start_point = TP::to_point(&range.start, &snapshot);
4653 (start_point..end_point, text)
4654 })
4655 .sorted_by_key(|(range, _)| range.start)
4656 .collect::<Vec<_>>();
4657 buffer.edit(edits, None, cx);
4658 })
4659 }
4660
4661 this.refresh_inline_completion(true, false, cx);
4662 });
4663
4664 let show_new_completions_on_confirm = completion
4665 .confirm
4666 .as_ref()
4667 .map_or(false, |confirm| confirm(intent, cx));
4668 if show_new_completions_on_confirm {
4669 self.show_completions(&ShowCompletions { trigger: None }, cx);
4670 }
4671
4672 let provider = self.completion_provider.as_ref()?;
4673 let apply_edits = provider.apply_additional_edits_for_completion(
4674 buffer_handle,
4675 completion.clone(),
4676 true,
4677 cx,
4678 );
4679
4680 let editor_settings = EditorSettings::get_global(cx);
4681 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4682 // After the code completion is finished, users often want to know what signatures are needed.
4683 // so we should automatically call signature_help
4684 self.show_signature_help(&ShowSignatureHelp, cx);
4685 }
4686
4687 Some(cx.foreground_executor().spawn(async move {
4688 apply_edits.await?;
4689 Ok(())
4690 }))
4691 }
4692
4693 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4694 let mut context_menu = self.context_menu.write();
4695 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4696 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4697 // Toggle if we're selecting the same one
4698 *context_menu = None;
4699 cx.notify();
4700 return;
4701 } else {
4702 // Otherwise, clear it and start a new one
4703 *context_menu = None;
4704 cx.notify();
4705 }
4706 }
4707 drop(context_menu);
4708 let snapshot = self.snapshot(cx);
4709 let deployed_from_indicator = action.deployed_from_indicator;
4710 let mut task = self.code_actions_task.take();
4711 let action = action.clone();
4712 cx.spawn(|editor, mut cx| async move {
4713 while let Some(prev_task) = task {
4714 prev_task.await.log_err();
4715 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4716 }
4717
4718 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4719 if editor.focus_handle.is_focused(cx) {
4720 let multibuffer_point = action
4721 .deployed_from_indicator
4722 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4723 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4724 let (buffer, buffer_row) = snapshot
4725 .buffer_snapshot
4726 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4727 .and_then(|(buffer_snapshot, range)| {
4728 editor
4729 .buffer
4730 .read(cx)
4731 .buffer(buffer_snapshot.remote_id())
4732 .map(|buffer| (buffer, range.start.row))
4733 })?;
4734 let (_, code_actions) = editor
4735 .available_code_actions
4736 .clone()
4737 .and_then(|(location, code_actions)| {
4738 let snapshot = location.buffer.read(cx).snapshot();
4739 let point_range = location.range.to_point(&snapshot);
4740 let point_range = point_range.start.row..=point_range.end.row;
4741 if point_range.contains(&buffer_row) {
4742 Some((location, code_actions))
4743 } else {
4744 None
4745 }
4746 })
4747 .unzip();
4748 let buffer_id = buffer.read(cx).remote_id();
4749 let tasks = editor
4750 .tasks
4751 .get(&(buffer_id, buffer_row))
4752 .map(|t| Arc::new(t.to_owned()));
4753 if tasks.is_none() && code_actions.is_none() {
4754 return None;
4755 }
4756
4757 editor.completion_tasks.clear();
4758 editor.discard_inline_completion(false, cx);
4759 let task_context =
4760 tasks
4761 .as_ref()
4762 .zip(editor.project.clone())
4763 .map(|(tasks, project)| {
4764 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4765 });
4766
4767 Some(cx.spawn(|editor, mut cx| async move {
4768 let task_context = match task_context {
4769 Some(task_context) => task_context.await,
4770 None => None,
4771 };
4772 let resolved_tasks =
4773 tasks.zip(task_context).map(|(tasks, task_context)| {
4774 Arc::new(ResolvedTasks {
4775 templates: tasks.resolve(&task_context).collect(),
4776 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4777 multibuffer_point.row,
4778 tasks.column,
4779 )),
4780 })
4781 });
4782 let spawn_straight_away = resolved_tasks
4783 .as_ref()
4784 .map_or(false, |tasks| tasks.templates.len() == 1)
4785 && code_actions
4786 .as_ref()
4787 .map_or(true, |actions| actions.is_empty());
4788 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4789 *editor.context_menu.write() =
4790 Some(ContextMenu::CodeActions(CodeActionsMenu {
4791 buffer,
4792 actions: CodeActionContents {
4793 tasks: resolved_tasks,
4794 actions: code_actions,
4795 },
4796 selected_item: Default::default(),
4797 scroll_handle: UniformListScrollHandle::default(),
4798 deployed_from_indicator,
4799 }));
4800 if spawn_straight_away {
4801 if let Some(task) = editor.confirm_code_action(
4802 &ConfirmCodeAction { item_ix: Some(0) },
4803 cx,
4804 ) {
4805 cx.notify();
4806 return task;
4807 }
4808 }
4809 cx.notify();
4810 Task::ready(Ok(()))
4811 }) {
4812 task.await
4813 } else {
4814 Ok(())
4815 }
4816 }))
4817 } else {
4818 Some(Task::ready(Ok(())))
4819 }
4820 })?;
4821 if let Some(task) = spawned_test_task {
4822 task.await?;
4823 }
4824
4825 Ok::<_, anyhow::Error>(())
4826 })
4827 .detach_and_log_err(cx);
4828 }
4829
4830 pub fn confirm_code_action(
4831 &mut self,
4832 action: &ConfirmCodeAction,
4833 cx: &mut ViewContext<Self>,
4834 ) -> Option<Task<Result<()>>> {
4835 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4836 menu
4837 } else {
4838 return None;
4839 };
4840 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4841 let action = actions_menu.actions.get(action_ix)?;
4842 let title = action.label();
4843 let buffer = actions_menu.buffer;
4844 let workspace = self.workspace()?;
4845
4846 match action {
4847 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4848 workspace.update(cx, |workspace, cx| {
4849 workspace::tasks::schedule_resolved_task(
4850 workspace,
4851 task_source_kind,
4852 resolved_task,
4853 false,
4854 cx,
4855 );
4856
4857 Some(Task::ready(Ok(())))
4858 })
4859 }
4860 CodeActionsItem::CodeAction {
4861 excerpt_id,
4862 action,
4863 provider,
4864 } => {
4865 let apply_code_action =
4866 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4867 let workspace = workspace.downgrade();
4868 Some(cx.spawn(|editor, cx| async move {
4869 let project_transaction = apply_code_action.await?;
4870 Self::open_project_transaction(
4871 &editor,
4872 workspace,
4873 project_transaction,
4874 title,
4875 cx,
4876 )
4877 .await
4878 }))
4879 }
4880 }
4881 }
4882
4883 pub async fn open_project_transaction(
4884 this: &WeakView<Editor>,
4885 workspace: WeakView<Workspace>,
4886 transaction: ProjectTransaction,
4887 title: String,
4888 mut cx: AsyncWindowContext,
4889 ) -> Result<()> {
4890 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4891 cx.update(|cx| {
4892 entries.sort_unstable_by_key(|(buffer, _)| {
4893 buffer.read(cx).file().map(|f| f.path().clone())
4894 });
4895 })?;
4896
4897 // If the project transaction's edits are all contained within this editor, then
4898 // avoid opening a new editor to display them.
4899
4900 if let Some((buffer, transaction)) = entries.first() {
4901 if entries.len() == 1 {
4902 let excerpt = this.update(&mut cx, |editor, cx| {
4903 editor
4904 .buffer()
4905 .read(cx)
4906 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4907 })?;
4908 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4909 if excerpted_buffer == *buffer {
4910 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4911 let excerpt_range = excerpt_range.to_offset(buffer);
4912 buffer
4913 .edited_ranges_for_transaction::<usize>(transaction)
4914 .all(|range| {
4915 excerpt_range.start <= range.start
4916 && excerpt_range.end >= range.end
4917 })
4918 })?;
4919
4920 if all_edits_within_excerpt {
4921 return Ok(());
4922 }
4923 }
4924 }
4925 }
4926 } else {
4927 return Ok(());
4928 }
4929
4930 let mut ranges_to_highlight = Vec::new();
4931 let excerpt_buffer = cx.new_model(|cx| {
4932 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4933 for (buffer_handle, transaction) in &entries {
4934 let buffer = buffer_handle.read(cx);
4935 ranges_to_highlight.extend(
4936 multibuffer.push_excerpts_with_context_lines(
4937 buffer_handle.clone(),
4938 buffer
4939 .edited_ranges_for_transaction::<usize>(transaction)
4940 .collect(),
4941 DEFAULT_MULTIBUFFER_CONTEXT,
4942 cx,
4943 ),
4944 );
4945 }
4946 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4947 multibuffer
4948 })?;
4949
4950 workspace.update(&mut cx, |workspace, cx| {
4951 let project = workspace.project().clone();
4952 let editor =
4953 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4954 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4955 editor.update(cx, |editor, cx| {
4956 editor.highlight_background::<Self>(
4957 &ranges_to_highlight,
4958 |theme| theme.editor_highlighted_line_background,
4959 cx,
4960 );
4961 });
4962 })?;
4963
4964 Ok(())
4965 }
4966
4967 pub fn clear_code_action_providers(&mut self) {
4968 self.code_action_providers.clear();
4969 self.available_code_actions.take();
4970 }
4971
4972 pub fn push_code_action_provider(
4973 &mut self,
4974 provider: Arc<dyn CodeActionProvider>,
4975 cx: &mut ViewContext<Self>,
4976 ) {
4977 self.code_action_providers.push(provider);
4978 self.refresh_code_actions(cx);
4979 }
4980
4981 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4982 let buffer = self.buffer.read(cx);
4983 let newest_selection = self.selections.newest_anchor().clone();
4984 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4985 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4986 if start_buffer != end_buffer {
4987 return None;
4988 }
4989
4990 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4991 cx.background_executor()
4992 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4993 .await;
4994
4995 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4996 let providers = this.code_action_providers.clone();
4997 let tasks = this
4998 .code_action_providers
4999 .iter()
5000 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5001 .collect::<Vec<_>>();
5002 (providers, tasks)
5003 })?;
5004
5005 let mut actions = Vec::new();
5006 for (provider, provider_actions) in
5007 providers.into_iter().zip(future::join_all(tasks).await)
5008 {
5009 if let Some(provider_actions) = provider_actions.log_err() {
5010 actions.extend(provider_actions.into_iter().map(|action| {
5011 AvailableCodeAction {
5012 excerpt_id: newest_selection.start.excerpt_id,
5013 action,
5014 provider: provider.clone(),
5015 }
5016 }));
5017 }
5018 }
5019
5020 this.update(&mut cx, |this, cx| {
5021 this.available_code_actions = if actions.is_empty() {
5022 None
5023 } else {
5024 Some((
5025 Location {
5026 buffer: start_buffer,
5027 range: start..end,
5028 },
5029 actions.into(),
5030 ))
5031 };
5032 cx.notify();
5033 })
5034 }));
5035 None
5036 }
5037
5038 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5039 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5040 self.show_git_blame_inline = false;
5041
5042 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5043 cx.background_executor().timer(delay).await;
5044
5045 this.update(&mut cx, |this, cx| {
5046 this.show_git_blame_inline = true;
5047 cx.notify();
5048 })
5049 .log_err();
5050 }));
5051 }
5052 }
5053
5054 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5055 if self.pending_rename.is_some() {
5056 return None;
5057 }
5058
5059 let provider = self.semantics_provider.clone()?;
5060 let buffer = self.buffer.read(cx);
5061 let newest_selection = self.selections.newest_anchor().clone();
5062 let cursor_position = newest_selection.head();
5063 let (cursor_buffer, cursor_buffer_position) =
5064 buffer.text_anchor_for_position(cursor_position, cx)?;
5065 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5066 if cursor_buffer != tail_buffer {
5067 return None;
5068 }
5069
5070 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5071 cx.background_executor()
5072 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5073 .await;
5074
5075 let highlights = if let Some(highlights) = cx
5076 .update(|cx| {
5077 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5078 })
5079 .ok()
5080 .flatten()
5081 {
5082 highlights.await.log_err()
5083 } else {
5084 None
5085 };
5086
5087 if let Some(highlights) = highlights {
5088 this.update(&mut cx, |this, cx| {
5089 if this.pending_rename.is_some() {
5090 return;
5091 }
5092
5093 let buffer_id = cursor_position.buffer_id;
5094 let buffer = this.buffer.read(cx);
5095 if !buffer
5096 .text_anchor_for_position(cursor_position, cx)
5097 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5098 {
5099 return;
5100 }
5101
5102 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5103 let mut write_ranges = Vec::new();
5104 let mut read_ranges = Vec::new();
5105 for highlight in highlights {
5106 for (excerpt_id, excerpt_range) in
5107 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5108 {
5109 let start = highlight
5110 .range
5111 .start
5112 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5113 let end = highlight
5114 .range
5115 .end
5116 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5117 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5118 continue;
5119 }
5120
5121 let range = Anchor {
5122 buffer_id,
5123 excerpt_id,
5124 text_anchor: start,
5125 }..Anchor {
5126 buffer_id,
5127 excerpt_id,
5128 text_anchor: end,
5129 };
5130 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5131 write_ranges.push(range);
5132 } else {
5133 read_ranges.push(range);
5134 }
5135 }
5136 }
5137
5138 this.highlight_background::<DocumentHighlightRead>(
5139 &read_ranges,
5140 |theme| theme.editor_document_highlight_read_background,
5141 cx,
5142 );
5143 this.highlight_background::<DocumentHighlightWrite>(
5144 &write_ranges,
5145 |theme| theme.editor_document_highlight_write_background,
5146 cx,
5147 );
5148 cx.notify();
5149 })
5150 .log_err();
5151 }
5152 }));
5153 None
5154 }
5155
5156 pub fn refresh_inline_completion(
5157 &mut self,
5158 debounce: bool,
5159 user_requested: bool,
5160 cx: &mut ViewContext<Self>,
5161 ) -> Option<()> {
5162 let provider = self.inline_completion_provider()?;
5163 let cursor = self.selections.newest_anchor().head();
5164 let (buffer, cursor_buffer_position) =
5165 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5166
5167 if !user_requested
5168 && (!self.enable_inline_completions
5169 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5170 {
5171 self.discard_inline_completion(false, cx);
5172 return None;
5173 }
5174
5175 self.update_visible_inline_completion(cx);
5176 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5177 Some(())
5178 }
5179
5180 fn cycle_inline_completion(
5181 &mut self,
5182 direction: Direction,
5183 cx: &mut ViewContext<Self>,
5184 ) -> Option<()> {
5185 let provider = self.inline_completion_provider()?;
5186 let cursor = self.selections.newest_anchor().head();
5187 let (buffer, cursor_buffer_position) =
5188 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5189 if !self.enable_inline_completions
5190 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5191 {
5192 return None;
5193 }
5194
5195 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5196 self.update_visible_inline_completion(cx);
5197
5198 Some(())
5199 }
5200
5201 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5202 if !self.has_active_inline_completion(cx) {
5203 self.refresh_inline_completion(false, true, cx);
5204 return;
5205 }
5206
5207 self.update_visible_inline_completion(cx);
5208 }
5209
5210 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5211 self.show_cursor_names(cx);
5212 }
5213
5214 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5215 self.show_cursor_names = true;
5216 cx.notify();
5217 cx.spawn(|this, mut cx| async move {
5218 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5219 this.update(&mut cx, |this, cx| {
5220 this.show_cursor_names = false;
5221 cx.notify()
5222 })
5223 .ok()
5224 })
5225 .detach();
5226 }
5227
5228 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5229 if self.has_active_inline_completion(cx) {
5230 self.cycle_inline_completion(Direction::Next, cx);
5231 } else {
5232 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5233 if is_copilot_disabled {
5234 cx.propagate();
5235 }
5236 }
5237 }
5238
5239 pub fn previous_inline_completion(
5240 &mut self,
5241 _: &PreviousInlineCompletion,
5242 cx: &mut ViewContext<Self>,
5243 ) {
5244 if self.has_active_inline_completion(cx) {
5245 self.cycle_inline_completion(Direction::Prev, cx);
5246 } else {
5247 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5248 if is_copilot_disabled {
5249 cx.propagate();
5250 }
5251 }
5252 }
5253
5254 pub fn accept_inline_completion(
5255 &mut self,
5256 _: &AcceptInlineCompletion,
5257 cx: &mut ViewContext<Self>,
5258 ) {
5259 let Some(completion) = self.take_active_inline_completion(cx) else {
5260 return;
5261 };
5262 if let Some(provider) = self.inline_completion_provider() {
5263 provider.accept(cx);
5264 }
5265
5266 cx.emit(EditorEvent::InputHandled {
5267 utf16_range_to_replace: None,
5268 text: completion.text.to_string().into(),
5269 });
5270
5271 if let Some(range) = completion.delete_range {
5272 self.change_selections(None, cx, |s| s.select_ranges([range]))
5273 }
5274 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5275 self.refresh_inline_completion(true, true, cx);
5276 cx.notify();
5277 }
5278
5279 pub fn accept_partial_inline_completion(
5280 &mut self,
5281 _: &AcceptPartialInlineCompletion,
5282 cx: &mut ViewContext<Self>,
5283 ) {
5284 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5285 if let Some(completion) = self.take_active_inline_completion(cx) {
5286 let mut partial_completion = completion
5287 .text
5288 .chars()
5289 .by_ref()
5290 .take_while(|c| c.is_alphabetic())
5291 .collect::<String>();
5292 if partial_completion.is_empty() {
5293 partial_completion = completion
5294 .text
5295 .chars()
5296 .by_ref()
5297 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5298 .collect::<String>();
5299 }
5300
5301 cx.emit(EditorEvent::InputHandled {
5302 utf16_range_to_replace: None,
5303 text: partial_completion.clone().into(),
5304 });
5305
5306 if let Some(range) = completion.delete_range {
5307 self.change_selections(None, cx, |s| s.select_ranges([range]))
5308 }
5309 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5310
5311 self.refresh_inline_completion(true, true, cx);
5312 cx.notify();
5313 }
5314 }
5315 }
5316
5317 fn discard_inline_completion(
5318 &mut self,
5319 should_report_inline_completion_event: bool,
5320 cx: &mut ViewContext<Self>,
5321 ) -> bool {
5322 if let Some(provider) = self.inline_completion_provider() {
5323 provider.discard(should_report_inline_completion_event, cx);
5324 }
5325
5326 self.take_active_inline_completion(cx).is_some()
5327 }
5328
5329 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5330 if let Some(completion) = self.active_inline_completion.as_ref() {
5331 let buffer = self.buffer.read(cx).read(cx);
5332 completion.position.is_valid(&buffer)
5333 } else {
5334 false
5335 }
5336 }
5337
5338 fn take_active_inline_completion(
5339 &mut self,
5340 cx: &mut ViewContext<Self>,
5341 ) -> Option<CompletionState> {
5342 let completion = self.active_inline_completion.take()?;
5343 let render_inlay_ids = completion.render_inlay_ids.clone();
5344 self.display_map.update(cx, |map, cx| {
5345 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5346 });
5347 let buffer = self.buffer.read(cx).read(cx);
5348
5349 if completion.position.is_valid(&buffer) {
5350 Some(completion)
5351 } else {
5352 None
5353 }
5354 }
5355
5356 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5357 let selection = self.selections.newest_anchor();
5358 let cursor = selection.head();
5359
5360 let excerpt_id = cursor.excerpt_id;
5361
5362 if self.context_menu.read().is_none()
5363 && self.completion_tasks.is_empty()
5364 && selection.start == selection.end
5365 {
5366 if let Some(provider) = self.inline_completion_provider() {
5367 if let Some((buffer, cursor_buffer_position)) =
5368 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5369 {
5370 if let Some(proposal) =
5371 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5372 {
5373 let mut to_remove = Vec::new();
5374 if let Some(completion) = self.active_inline_completion.take() {
5375 to_remove.extend(completion.render_inlay_ids.iter());
5376 }
5377
5378 let to_add = proposal
5379 .inlays
5380 .iter()
5381 .filter_map(|inlay| {
5382 let snapshot = self.buffer.read(cx).snapshot(cx);
5383 let id = post_inc(&mut self.next_inlay_id);
5384 match inlay {
5385 InlayProposal::Hint(position, hint) => {
5386 let position =
5387 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5388 Some(Inlay::hint(id, position, hint))
5389 }
5390 InlayProposal::Suggestion(position, text) => {
5391 let position =
5392 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5393 Some(Inlay::suggestion(id, position, text.clone()))
5394 }
5395 }
5396 })
5397 .collect_vec();
5398
5399 self.active_inline_completion = Some(CompletionState {
5400 position: cursor,
5401 text: proposal.text,
5402 delete_range: proposal.delete_range.and_then(|range| {
5403 let snapshot = self.buffer.read(cx).snapshot(cx);
5404 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5405 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5406 Some(start?..end?)
5407 }),
5408 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5409 });
5410
5411 self.display_map
5412 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5413
5414 cx.notify();
5415 return;
5416 }
5417 }
5418 }
5419 }
5420
5421 self.discard_inline_completion(false, cx);
5422 }
5423
5424 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5425 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5426 }
5427
5428 fn render_code_actions_indicator(
5429 &self,
5430 _style: &EditorStyle,
5431 row: DisplayRow,
5432 is_active: bool,
5433 cx: &mut ViewContext<Self>,
5434 ) -> Option<IconButton> {
5435 if self.available_code_actions.is_some() {
5436 Some(
5437 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5438 .shape(ui::IconButtonShape::Square)
5439 .icon_size(IconSize::XSmall)
5440 .icon_color(Color::Muted)
5441 .selected(is_active)
5442 .tooltip({
5443 let focus_handle = self.focus_handle.clone();
5444 move |cx| {
5445 Tooltip::for_action_in(
5446 "Toggle Code Actions",
5447 &ToggleCodeActions {
5448 deployed_from_indicator: None,
5449 },
5450 &focus_handle,
5451 cx,
5452 )
5453 }
5454 })
5455 .on_click(cx.listener(move |editor, _e, cx| {
5456 editor.focus(cx);
5457 editor.toggle_code_actions(
5458 &ToggleCodeActions {
5459 deployed_from_indicator: Some(row),
5460 },
5461 cx,
5462 );
5463 })),
5464 )
5465 } else {
5466 None
5467 }
5468 }
5469
5470 fn clear_tasks(&mut self) {
5471 self.tasks.clear()
5472 }
5473
5474 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5475 if self.tasks.insert(key, value).is_some() {
5476 // This case should hopefully be rare, but just in case...
5477 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5478 }
5479 }
5480
5481 fn build_tasks_context(
5482 project: &Model<Project>,
5483 buffer: &Model<Buffer>,
5484 buffer_row: u32,
5485 tasks: &Arc<RunnableTasks>,
5486 cx: &mut ViewContext<Self>,
5487 ) -> Task<Option<task::TaskContext>> {
5488 let position = Point::new(buffer_row, tasks.column);
5489 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5490 let location = Location {
5491 buffer: buffer.clone(),
5492 range: range_start..range_start,
5493 };
5494 // Fill in the environmental variables from the tree-sitter captures
5495 let mut captured_task_variables = TaskVariables::default();
5496 for (capture_name, value) in tasks.extra_variables.clone() {
5497 captured_task_variables.insert(
5498 task::VariableName::Custom(capture_name.into()),
5499 value.clone(),
5500 );
5501 }
5502 project.update(cx, |project, cx| {
5503 project.task_store().update(cx, |task_store, cx| {
5504 task_store.task_context_for_location(captured_task_variables, location, cx)
5505 })
5506 })
5507 }
5508
5509 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5510 let Some((workspace, _)) = self.workspace.clone() else {
5511 return;
5512 };
5513 let Some(project) = self.project.clone() else {
5514 return;
5515 };
5516
5517 // Try to find a closest, enclosing node using tree-sitter that has a
5518 // task
5519 let Some((buffer, buffer_row, tasks)) = self
5520 .find_enclosing_node_task(cx)
5521 // Or find the task that's closest in row-distance.
5522 .or_else(|| self.find_closest_task(cx))
5523 else {
5524 return;
5525 };
5526
5527 let reveal_strategy = action.reveal;
5528 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5529 cx.spawn(|_, mut cx| async move {
5530 let context = task_context.await?;
5531 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5532
5533 let resolved = resolved_task.resolved.as_mut()?;
5534 resolved.reveal = reveal_strategy;
5535
5536 workspace
5537 .update(&mut cx, |workspace, cx| {
5538 workspace::tasks::schedule_resolved_task(
5539 workspace,
5540 task_source_kind,
5541 resolved_task,
5542 false,
5543 cx,
5544 );
5545 })
5546 .ok()
5547 })
5548 .detach();
5549 }
5550
5551 fn find_closest_task(
5552 &mut self,
5553 cx: &mut ViewContext<Self>,
5554 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5555 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5556
5557 let ((buffer_id, row), tasks) = self
5558 .tasks
5559 .iter()
5560 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5561
5562 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5563 let tasks = Arc::new(tasks.to_owned());
5564 Some((buffer, *row, tasks))
5565 }
5566
5567 fn find_enclosing_node_task(
5568 &mut self,
5569 cx: &mut ViewContext<Self>,
5570 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5571 let snapshot = self.buffer.read(cx).snapshot(cx);
5572 let offset = self.selections.newest::<usize>(cx).head();
5573 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5574 let buffer_id = excerpt.buffer().remote_id();
5575
5576 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5577 let mut cursor = layer.node().walk();
5578
5579 while cursor.goto_first_child_for_byte(offset).is_some() {
5580 if cursor.node().end_byte() == offset {
5581 cursor.goto_next_sibling();
5582 }
5583 }
5584
5585 // Ascend to the smallest ancestor that contains the range and has a task.
5586 loop {
5587 let node = cursor.node();
5588 let node_range = node.byte_range();
5589 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5590
5591 // Check if this node contains our offset
5592 if node_range.start <= offset && node_range.end >= offset {
5593 // If it contains offset, check for task
5594 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5595 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5596 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5597 }
5598 }
5599
5600 if !cursor.goto_parent() {
5601 break;
5602 }
5603 }
5604 None
5605 }
5606
5607 fn render_run_indicator(
5608 &self,
5609 _style: &EditorStyle,
5610 is_active: bool,
5611 row: DisplayRow,
5612 cx: &mut ViewContext<Self>,
5613 ) -> IconButton {
5614 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5615 .shape(ui::IconButtonShape::Square)
5616 .icon_size(IconSize::XSmall)
5617 .icon_color(Color::Muted)
5618 .selected(is_active)
5619 .on_click(cx.listener(move |editor, _e, cx| {
5620 editor.focus(cx);
5621 editor.toggle_code_actions(
5622 &ToggleCodeActions {
5623 deployed_from_indicator: Some(row),
5624 },
5625 cx,
5626 );
5627 }))
5628 }
5629
5630 pub fn context_menu_visible(&self) -> bool {
5631 self.context_menu
5632 .read()
5633 .as_ref()
5634 .map_or(false, |menu| menu.visible())
5635 }
5636
5637 fn render_context_menu(
5638 &self,
5639 cursor_position: DisplayPoint,
5640 style: &EditorStyle,
5641 max_height: Pixels,
5642 cx: &mut ViewContext<Editor>,
5643 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5644 self.context_menu.read().as_ref().map(|menu| {
5645 menu.render(
5646 cursor_position,
5647 style,
5648 max_height,
5649 self.workspace.as_ref().map(|(w, _)| w.clone()),
5650 cx,
5651 )
5652 })
5653 }
5654
5655 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5656 cx.notify();
5657 self.completion_tasks.clear();
5658 let context_menu = self.context_menu.write().take();
5659 if context_menu.is_some() {
5660 self.update_visible_inline_completion(cx);
5661 }
5662 context_menu
5663 }
5664
5665 pub fn insert_snippet(
5666 &mut self,
5667 insertion_ranges: &[Range<usize>],
5668 snippet: Snippet,
5669 cx: &mut ViewContext<Self>,
5670 ) -> Result<()> {
5671 struct Tabstop<T> {
5672 is_end_tabstop: bool,
5673 ranges: Vec<Range<T>>,
5674 }
5675
5676 let tabstops = self.buffer.update(cx, |buffer, cx| {
5677 let snippet_text: Arc<str> = snippet.text.clone().into();
5678 buffer.edit(
5679 insertion_ranges
5680 .iter()
5681 .cloned()
5682 .map(|range| (range, snippet_text.clone())),
5683 Some(AutoindentMode::EachLine),
5684 cx,
5685 );
5686
5687 let snapshot = &*buffer.read(cx);
5688 let snippet = &snippet;
5689 snippet
5690 .tabstops
5691 .iter()
5692 .map(|tabstop| {
5693 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5694 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5695 });
5696 let mut tabstop_ranges = tabstop
5697 .iter()
5698 .flat_map(|tabstop_range| {
5699 let mut delta = 0_isize;
5700 insertion_ranges.iter().map(move |insertion_range| {
5701 let insertion_start = insertion_range.start as isize + delta;
5702 delta +=
5703 snippet.text.len() as isize - insertion_range.len() as isize;
5704
5705 let start = ((insertion_start + tabstop_range.start) as usize)
5706 .min(snapshot.len());
5707 let end = ((insertion_start + tabstop_range.end) as usize)
5708 .min(snapshot.len());
5709 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5710 })
5711 })
5712 .collect::<Vec<_>>();
5713 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5714
5715 Tabstop {
5716 is_end_tabstop,
5717 ranges: tabstop_ranges,
5718 }
5719 })
5720 .collect::<Vec<_>>()
5721 });
5722 if let Some(tabstop) = tabstops.first() {
5723 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5724 s.select_ranges(tabstop.ranges.iter().cloned());
5725 });
5726
5727 // If we're already at the last tabstop and it's at the end of the snippet,
5728 // we're done, we don't need to keep the state around.
5729 if !tabstop.is_end_tabstop {
5730 let ranges = tabstops
5731 .into_iter()
5732 .map(|tabstop| tabstop.ranges)
5733 .collect::<Vec<_>>();
5734 self.snippet_stack.push(SnippetState {
5735 active_index: 0,
5736 ranges,
5737 });
5738 }
5739
5740 // Check whether the just-entered snippet ends with an auto-closable bracket.
5741 if self.autoclose_regions.is_empty() {
5742 let snapshot = self.buffer.read(cx).snapshot(cx);
5743 for selection in &mut self.selections.all::<Point>(cx) {
5744 let selection_head = selection.head();
5745 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5746 continue;
5747 };
5748
5749 let mut bracket_pair = None;
5750 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5751 let prev_chars = snapshot
5752 .reversed_chars_at(selection_head)
5753 .collect::<String>();
5754 for (pair, enabled) in scope.brackets() {
5755 if enabled
5756 && pair.close
5757 && prev_chars.starts_with(pair.start.as_str())
5758 && next_chars.starts_with(pair.end.as_str())
5759 {
5760 bracket_pair = Some(pair.clone());
5761 break;
5762 }
5763 }
5764 if let Some(pair) = bracket_pair {
5765 let start = snapshot.anchor_after(selection_head);
5766 let end = snapshot.anchor_after(selection_head);
5767 self.autoclose_regions.push(AutocloseRegion {
5768 selection_id: selection.id,
5769 range: start..end,
5770 pair,
5771 });
5772 }
5773 }
5774 }
5775 }
5776 Ok(())
5777 }
5778
5779 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5780 self.move_to_snippet_tabstop(Bias::Right, cx)
5781 }
5782
5783 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5784 self.move_to_snippet_tabstop(Bias::Left, cx)
5785 }
5786
5787 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5788 if let Some(mut snippet) = self.snippet_stack.pop() {
5789 match bias {
5790 Bias::Left => {
5791 if snippet.active_index > 0 {
5792 snippet.active_index -= 1;
5793 } else {
5794 self.snippet_stack.push(snippet);
5795 return false;
5796 }
5797 }
5798 Bias::Right => {
5799 if snippet.active_index + 1 < snippet.ranges.len() {
5800 snippet.active_index += 1;
5801 } else {
5802 self.snippet_stack.push(snippet);
5803 return false;
5804 }
5805 }
5806 }
5807 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5808 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5809 s.select_anchor_ranges(current_ranges.iter().cloned())
5810 });
5811 // If snippet state is not at the last tabstop, push it back on the stack
5812 if snippet.active_index + 1 < snippet.ranges.len() {
5813 self.snippet_stack.push(snippet);
5814 }
5815 return true;
5816 }
5817 }
5818
5819 false
5820 }
5821
5822 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5823 self.transact(cx, |this, cx| {
5824 this.select_all(&SelectAll, cx);
5825 this.insert("", cx);
5826 });
5827 }
5828
5829 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5830 self.transact(cx, |this, cx| {
5831 this.select_autoclose_pair(cx);
5832 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5833 if !this.linked_edit_ranges.is_empty() {
5834 let selections = this.selections.all::<MultiBufferPoint>(cx);
5835 let snapshot = this.buffer.read(cx).snapshot(cx);
5836
5837 for selection in selections.iter() {
5838 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5839 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5840 if selection_start.buffer_id != selection_end.buffer_id {
5841 continue;
5842 }
5843 if let Some(ranges) =
5844 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5845 {
5846 for (buffer, entries) in ranges {
5847 linked_ranges.entry(buffer).or_default().extend(entries);
5848 }
5849 }
5850 }
5851 }
5852
5853 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5854 if !this.selections.line_mode {
5855 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5856 for selection in &mut selections {
5857 if selection.is_empty() {
5858 let old_head = selection.head();
5859 let mut new_head =
5860 movement::left(&display_map, old_head.to_display_point(&display_map))
5861 .to_point(&display_map);
5862 if let Some((buffer, line_buffer_range)) = display_map
5863 .buffer_snapshot
5864 .buffer_line_for_row(MultiBufferRow(old_head.row))
5865 {
5866 let indent_size =
5867 buffer.indent_size_for_line(line_buffer_range.start.row);
5868 let indent_len = match indent_size.kind {
5869 IndentKind::Space => {
5870 buffer.settings_at(line_buffer_range.start, cx).tab_size
5871 }
5872 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5873 };
5874 if old_head.column <= indent_size.len && old_head.column > 0 {
5875 let indent_len = indent_len.get();
5876 new_head = cmp::min(
5877 new_head,
5878 MultiBufferPoint::new(
5879 old_head.row,
5880 ((old_head.column - 1) / indent_len) * indent_len,
5881 ),
5882 );
5883 }
5884 }
5885
5886 selection.set_head(new_head, SelectionGoal::None);
5887 }
5888 }
5889 }
5890
5891 this.signature_help_state.set_backspace_pressed(true);
5892 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5893 this.insert("", cx);
5894 let empty_str: Arc<str> = Arc::from("");
5895 for (buffer, edits) in linked_ranges {
5896 let snapshot = buffer.read(cx).snapshot();
5897 use text::ToPoint as TP;
5898
5899 let edits = edits
5900 .into_iter()
5901 .map(|range| {
5902 let end_point = TP::to_point(&range.end, &snapshot);
5903 let mut start_point = TP::to_point(&range.start, &snapshot);
5904
5905 if end_point == start_point {
5906 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5907 .saturating_sub(1);
5908 start_point = TP::to_point(&offset, &snapshot);
5909 };
5910
5911 (start_point..end_point, empty_str.clone())
5912 })
5913 .sorted_by_key(|(range, _)| range.start)
5914 .collect::<Vec<_>>();
5915 buffer.update(cx, |this, cx| {
5916 this.edit(edits, None, cx);
5917 })
5918 }
5919 this.refresh_inline_completion(true, false, cx);
5920 linked_editing_ranges::refresh_linked_ranges(this, cx);
5921 });
5922 }
5923
5924 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5925 self.transact(cx, |this, cx| {
5926 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5927 let line_mode = s.line_mode;
5928 s.move_with(|map, selection| {
5929 if selection.is_empty() && !line_mode {
5930 let cursor = movement::right(map, selection.head());
5931 selection.end = cursor;
5932 selection.reversed = true;
5933 selection.goal = SelectionGoal::None;
5934 }
5935 })
5936 });
5937 this.insert("", cx);
5938 this.refresh_inline_completion(true, false, cx);
5939 });
5940 }
5941
5942 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5943 if self.move_to_prev_snippet_tabstop(cx) {
5944 return;
5945 }
5946
5947 self.outdent(&Outdent, cx);
5948 }
5949
5950 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5951 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5952 return;
5953 }
5954
5955 let mut selections = self.selections.all_adjusted(cx);
5956 let buffer = self.buffer.read(cx);
5957 let snapshot = buffer.snapshot(cx);
5958 let rows_iter = selections.iter().map(|s| s.head().row);
5959 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5960
5961 let mut edits = Vec::new();
5962 let mut prev_edited_row = 0;
5963 let mut row_delta = 0;
5964 for selection in &mut selections {
5965 if selection.start.row != prev_edited_row {
5966 row_delta = 0;
5967 }
5968 prev_edited_row = selection.end.row;
5969
5970 // If the selection is non-empty, then increase the indentation of the selected lines.
5971 if !selection.is_empty() {
5972 row_delta =
5973 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5974 continue;
5975 }
5976
5977 // If the selection is empty and the cursor is in the leading whitespace before the
5978 // suggested indentation, then auto-indent the line.
5979 let cursor = selection.head();
5980 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5981 if let Some(suggested_indent) =
5982 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5983 {
5984 if cursor.column < suggested_indent.len
5985 && cursor.column <= current_indent.len
5986 && current_indent.len <= suggested_indent.len
5987 {
5988 selection.start = Point::new(cursor.row, suggested_indent.len);
5989 selection.end = selection.start;
5990 if row_delta == 0 {
5991 edits.extend(Buffer::edit_for_indent_size_adjustment(
5992 cursor.row,
5993 current_indent,
5994 suggested_indent,
5995 ));
5996 row_delta = suggested_indent.len - current_indent.len;
5997 }
5998 continue;
5999 }
6000 }
6001
6002 // Otherwise, insert a hard or soft tab.
6003 let settings = buffer.settings_at(cursor, cx);
6004 let tab_size = if settings.hard_tabs {
6005 IndentSize::tab()
6006 } else {
6007 let tab_size = settings.tab_size.get();
6008 let char_column = snapshot
6009 .text_for_range(Point::new(cursor.row, 0)..cursor)
6010 .flat_map(str::chars)
6011 .count()
6012 + row_delta as usize;
6013 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6014 IndentSize::spaces(chars_to_next_tab_stop)
6015 };
6016 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6017 selection.end = selection.start;
6018 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6019 row_delta += tab_size.len;
6020 }
6021
6022 self.transact(cx, |this, cx| {
6023 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6024 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6025 this.refresh_inline_completion(true, false, cx);
6026 });
6027 }
6028
6029 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6030 if self.read_only(cx) {
6031 return;
6032 }
6033 let mut selections = self.selections.all::<Point>(cx);
6034 let mut prev_edited_row = 0;
6035 let mut row_delta = 0;
6036 let mut edits = Vec::new();
6037 let buffer = self.buffer.read(cx);
6038 let snapshot = buffer.snapshot(cx);
6039 for selection in &mut selections {
6040 if selection.start.row != prev_edited_row {
6041 row_delta = 0;
6042 }
6043 prev_edited_row = selection.end.row;
6044
6045 row_delta =
6046 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6047 }
6048
6049 self.transact(cx, |this, cx| {
6050 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6051 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6052 });
6053 }
6054
6055 fn indent_selection(
6056 buffer: &MultiBuffer,
6057 snapshot: &MultiBufferSnapshot,
6058 selection: &mut Selection<Point>,
6059 edits: &mut Vec<(Range<Point>, String)>,
6060 delta_for_start_row: u32,
6061 cx: &AppContext,
6062 ) -> u32 {
6063 let settings = buffer.settings_at(selection.start, cx);
6064 let tab_size = settings.tab_size.get();
6065 let indent_kind = if settings.hard_tabs {
6066 IndentKind::Tab
6067 } else {
6068 IndentKind::Space
6069 };
6070 let mut start_row = selection.start.row;
6071 let mut end_row = selection.end.row + 1;
6072
6073 // If a selection ends at the beginning of a line, don't indent
6074 // that last line.
6075 if selection.end.column == 0 && selection.end.row > selection.start.row {
6076 end_row -= 1;
6077 }
6078
6079 // Avoid re-indenting a row that has already been indented by a
6080 // previous selection, but still update this selection's column
6081 // to reflect that indentation.
6082 if delta_for_start_row > 0 {
6083 start_row += 1;
6084 selection.start.column += delta_for_start_row;
6085 if selection.end.row == selection.start.row {
6086 selection.end.column += delta_for_start_row;
6087 }
6088 }
6089
6090 let mut delta_for_end_row = 0;
6091 let has_multiple_rows = start_row + 1 != end_row;
6092 for row in start_row..end_row {
6093 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6094 let indent_delta = match (current_indent.kind, indent_kind) {
6095 (IndentKind::Space, IndentKind::Space) => {
6096 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6097 IndentSize::spaces(columns_to_next_tab_stop)
6098 }
6099 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6100 (_, IndentKind::Tab) => IndentSize::tab(),
6101 };
6102
6103 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6104 0
6105 } else {
6106 selection.start.column
6107 };
6108 let row_start = Point::new(row, start);
6109 edits.push((
6110 row_start..row_start,
6111 indent_delta.chars().collect::<String>(),
6112 ));
6113
6114 // Update this selection's endpoints to reflect the indentation.
6115 if row == selection.start.row {
6116 selection.start.column += indent_delta.len;
6117 }
6118 if row == selection.end.row {
6119 selection.end.column += indent_delta.len;
6120 delta_for_end_row = indent_delta.len;
6121 }
6122 }
6123
6124 if selection.start.row == selection.end.row {
6125 delta_for_start_row + delta_for_end_row
6126 } else {
6127 delta_for_end_row
6128 }
6129 }
6130
6131 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6132 if self.read_only(cx) {
6133 return;
6134 }
6135 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6136 let selections = self.selections.all::<Point>(cx);
6137 let mut deletion_ranges = Vec::new();
6138 let mut last_outdent = None;
6139 {
6140 let buffer = self.buffer.read(cx);
6141 let snapshot = buffer.snapshot(cx);
6142 for selection in &selections {
6143 let settings = buffer.settings_at(selection.start, cx);
6144 let tab_size = settings.tab_size.get();
6145 let mut rows = selection.spanned_rows(false, &display_map);
6146
6147 // Avoid re-outdenting a row that has already been outdented by a
6148 // previous selection.
6149 if let Some(last_row) = last_outdent {
6150 if last_row == rows.start {
6151 rows.start = rows.start.next_row();
6152 }
6153 }
6154 let has_multiple_rows = rows.len() > 1;
6155 for row in rows.iter_rows() {
6156 let indent_size = snapshot.indent_size_for_line(row);
6157 if indent_size.len > 0 {
6158 let deletion_len = match indent_size.kind {
6159 IndentKind::Space => {
6160 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6161 if columns_to_prev_tab_stop == 0 {
6162 tab_size
6163 } else {
6164 columns_to_prev_tab_stop
6165 }
6166 }
6167 IndentKind::Tab => 1,
6168 };
6169 let start = if has_multiple_rows
6170 || deletion_len > selection.start.column
6171 || indent_size.len < selection.start.column
6172 {
6173 0
6174 } else {
6175 selection.start.column - deletion_len
6176 };
6177 deletion_ranges.push(
6178 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6179 );
6180 last_outdent = Some(row);
6181 }
6182 }
6183 }
6184 }
6185
6186 self.transact(cx, |this, cx| {
6187 this.buffer.update(cx, |buffer, cx| {
6188 let empty_str: Arc<str> = Arc::default();
6189 buffer.edit(
6190 deletion_ranges
6191 .into_iter()
6192 .map(|range| (range, empty_str.clone())),
6193 None,
6194 cx,
6195 );
6196 });
6197 let selections = this.selections.all::<usize>(cx);
6198 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6199 });
6200 }
6201
6202 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6203 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6204 let selections = self.selections.all::<Point>(cx);
6205
6206 let mut new_cursors = Vec::new();
6207 let mut edit_ranges = Vec::new();
6208 let mut selections = selections.iter().peekable();
6209 while let Some(selection) = selections.next() {
6210 let mut rows = selection.spanned_rows(false, &display_map);
6211 let goal_display_column = selection.head().to_display_point(&display_map).column();
6212
6213 // Accumulate contiguous regions of rows that we want to delete.
6214 while let Some(next_selection) = selections.peek() {
6215 let next_rows = next_selection.spanned_rows(false, &display_map);
6216 if next_rows.start <= rows.end {
6217 rows.end = next_rows.end;
6218 selections.next().unwrap();
6219 } else {
6220 break;
6221 }
6222 }
6223
6224 let buffer = &display_map.buffer_snapshot;
6225 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6226 let edit_end;
6227 let cursor_buffer_row;
6228 if buffer.max_point().row >= rows.end.0 {
6229 // If there's a line after the range, delete the \n from the end of the row range
6230 // and position the cursor on the next line.
6231 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6232 cursor_buffer_row = rows.end;
6233 } else {
6234 // If there isn't a line after the range, delete the \n from the line before the
6235 // start of the row range and position the cursor there.
6236 edit_start = edit_start.saturating_sub(1);
6237 edit_end = buffer.len();
6238 cursor_buffer_row = rows.start.previous_row();
6239 }
6240
6241 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6242 *cursor.column_mut() =
6243 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6244
6245 new_cursors.push((
6246 selection.id,
6247 buffer.anchor_after(cursor.to_point(&display_map)),
6248 ));
6249 edit_ranges.push(edit_start..edit_end);
6250 }
6251
6252 self.transact(cx, |this, cx| {
6253 let buffer = this.buffer.update(cx, |buffer, cx| {
6254 let empty_str: Arc<str> = Arc::default();
6255 buffer.edit(
6256 edit_ranges
6257 .into_iter()
6258 .map(|range| (range, empty_str.clone())),
6259 None,
6260 cx,
6261 );
6262 buffer.snapshot(cx)
6263 });
6264 let new_selections = new_cursors
6265 .into_iter()
6266 .map(|(id, cursor)| {
6267 let cursor = cursor.to_point(&buffer);
6268 Selection {
6269 id,
6270 start: cursor,
6271 end: cursor,
6272 reversed: false,
6273 goal: SelectionGoal::None,
6274 }
6275 })
6276 .collect();
6277
6278 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6279 s.select(new_selections);
6280 });
6281 });
6282 }
6283
6284 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6285 if self.read_only(cx) {
6286 return;
6287 }
6288 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6289 for selection in self.selections.all::<Point>(cx) {
6290 let start = MultiBufferRow(selection.start.row);
6291 let end = if selection.start.row == selection.end.row {
6292 MultiBufferRow(selection.start.row + 1)
6293 } else {
6294 MultiBufferRow(selection.end.row)
6295 };
6296
6297 if let Some(last_row_range) = row_ranges.last_mut() {
6298 if start <= last_row_range.end {
6299 last_row_range.end = end;
6300 continue;
6301 }
6302 }
6303 row_ranges.push(start..end);
6304 }
6305
6306 let snapshot = self.buffer.read(cx).snapshot(cx);
6307 let mut cursor_positions = Vec::new();
6308 for row_range in &row_ranges {
6309 let anchor = snapshot.anchor_before(Point::new(
6310 row_range.end.previous_row().0,
6311 snapshot.line_len(row_range.end.previous_row()),
6312 ));
6313 cursor_positions.push(anchor..anchor);
6314 }
6315
6316 self.transact(cx, |this, cx| {
6317 for row_range in row_ranges.into_iter().rev() {
6318 for row in row_range.iter_rows().rev() {
6319 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6320 let next_line_row = row.next_row();
6321 let indent = snapshot.indent_size_for_line(next_line_row);
6322 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6323
6324 let replace = if snapshot.line_len(next_line_row) > indent.len {
6325 " "
6326 } else {
6327 ""
6328 };
6329
6330 this.buffer.update(cx, |buffer, cx| {
6331 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6332 });
6333 }
6334 }
6335
6336 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6337 s.select_anchor_ranges(cursor_positions)
6338 });
6339 });
6340 }
6341
6342 pub fn sort_lines_case_sensitive(
6343 &mut self,
6344 _: &SortLinesCaseSensitive,
6345 cx: &mut ViewContext<Self>,
6346 ) {
6347 self.manipulate_lines(cx, |lines| lines.sort())
6348 }
6349
6350 pub fn sort_lines_case_insensitive(
6351 &mut self,
6352 _: &SortLinesCaseInsensitive,
6353 cx: &mut ViewContext<Self>,
6354 ) {
6355 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6356 }
6357
6358 pub fn unique_lines_case_insensitive(
6359 &mut self,
6360 _: &UniqueLinesCaseInsensitive,
6361 cx: &mut ViewContext<Self>,
6362 ) {
6363 self.manipulate_lines(cx, |lines| {
6364 let mut seen = HashSet::default();
6365 lines.retain(|line| seen.insert(line.to_lowercase()));
6366 })
6367 }
6368
6369 pub fn unique_lines_case_sensitive(
6370 &mut self,
6371 _: &UniqueLinesCaseSensitive,
6372 cx: &mut ViewContext<Self>,
6373 ) {
6374 self.manipulate_lines(cx, |lines| {
6375 let mut seen = HashSet::default();
6376 lines.retain(|line| seen.insert(*line));
6377 })
6378 }
6379
6380 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6381 let mut revert_changes = HashMap::default();
6382 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6383 for hunk in hunks_for_rows(
6384 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6385 &multi_buffer_snapshot,
6386 ) {
6387 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6388 }
6389 if !revert_changes.is_empty() {
6390 self.transact(cx, |editor, cx| {
6391 editor.revert(revert_changes, cx);
6392 });
6393 }
6394 }
6395
6396 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6397 let Some(project) = self.project.clone() else {
6398 return;
6399 };
6400 self.reload(project, cx).detach_and_notify_err(cx);
6401 }
6402
6403 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6404 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6405 if !revert_changes.is_empty() {
6406 self.transact(cx, |editor, cx| {
6407 editor.revert(revert_changes, cx);
6408 });
6409 }
6410 }
6411
6412 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6413 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6414 let project_path = buffer.read(cx).project_path(cx)?;
6415 let project = self.project.as_ref()?.read(cx);
6416 let entry = project.entry_for_path(&project_path, cx)?;
6417 let parent = match &entry.canonical_path {
6418 Some(canonical_path) => canonical_path.to_path_buf(),
6419 None => project.absolute_path(&project_path, cx)?,
6420 }
6421 .parent()?
6422 .to_path_buf();
6423 Some(parent)
6424 }) {
6425 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6426 }
6427 }
6428
6429 fn gather_revert_changes(
6430 &mut self,
6431 selections: &[Selection<Anchor>],
6432 cx: &mut ViewContext<'_, Editor>,
6433 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6434 let mut revert_changes = HashMap::default();
6435 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6436 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6437 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6438 }
6439 revert_changes
6440 }
6441
6442 pub fn prepare_revert_change(
6443 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6444 multi_buffer: &Model<MultiBuffer>,
6445 hunk: &MultiBufferDiffHunk,
6446 cx: &AppContext,
6447 ) -> Option<()> {
6448 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6449 let buffer = buffer.read(cx);
6450 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6451 let buffer_snapshot = buffer.snapshot();
6452 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6453 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6454 probe
6455 .0
6456 .start
6457 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6458 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6459 }) {
6460 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6461 Some(())
6462 } else {
6463 None
6464 }
6465 }
6466
6467 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6468 self.manipulate_lines(cx, |lines| lines.reverse())
6469 }
6470
6471 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6472 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6473 }
6474
6475 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6476 where
6477 Fn: FnMut(&mut Vec<&str>),
6478 {
6479 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6480 let buffer = self.buffer.read(cx).snapshot(cx);
6481
6482 let mut edits = Vec::new();
6483
6484 let selections = self.selections.all::<Point>(cx);
6485 let mut selections = selections.iter().peekable();
6486 let mut contiguous_row_selections = Vec::new();
6487 let mut new_selections = Vec::new();
6488 let mut added_lines = 0;
6489 let mut removed_lines = 0;
6490
6491 while let Some(selection) = selections.next() {
6492 let (start_row, end_row) = consume_contiguous_rows(
6493 &mut contiguous_row_selections,
6494 selection,
6495 &display_map,
6496 &mut selections,
6497 );
6498
6499 let start_point = Point::new(start_row.0, 0);
6500 let end_point = Point::new(
6501 end_row.previous_row().0,
6502 buffer.line_len(end_row.previous_row()),
6503 );
6504 let text = buffer
6505 .text_for_range(start_point..end_point)
6506 .collect::<String>();
6507
6508 let mut lines = text.split('\n').collect_vec();
6509
6510 let lines_before = lines.len();
6511 callback(&mut lines);
6512 let lines_after = lines.len();
6513
6514 edits.push((start_point..end_point, lines.join("\n")));
6515
6516 // Selections must change based on added and removed line count
6517 let start_row =
6518 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6519 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6520 new_selections.push(Selection {
6521 id: selection.id,
6522 start: start_row,
6523 end: end_row,
6524 goal: SelectionGoal::None,
6525 reversed: selection.reversed,
6526 });
6527
6528 if lines_after > lines_before {
6529 added_lines += lines_after - lines_before;
6530 } else if lines_before > lines_after {
6531 removed_lines += lines_before - lines_after;
6532 }
6533 }
6534
6535 self.transact(cx, |this, cx| {
6536 let buffer = this.buffer.update(cx, |buffer, cx| {
6537 buffer.edit(edits, None, cx);
6538 buffer.snapshot(cx)
6539 });
6540
6541 // Recalculate offsets on newly edited buffer
6542 let new_selections = new_selections
6543 .iter()
6544 .map(|s| {
6545 let start_point = Point::new(s.start.0, 0);
6546 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6547 Selection {
6548 id: s.id,
6549 start: buffer.point_to_offset(start_point),
6550 end: buffer.point_to_offset(end_point),
6551 goal: s.goal,
6552 reversed: s.reversed,
6553 }
6554 })
6555 .collect();
6556
6557 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6558 s.select(new_selections);
6559 });
6560
6561 this.request_autoscroll(Autoscroll::fit(), cx);
6562 });
6563 }
6564
6565 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6566 self.manipulate_text(cx, |text| text.to_uppercase())
6567 }
6568
6569 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6570 self.manipulate_text(cx, |text| text.to_lowercase())
6571 }
6572
6573 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6574 self.manipulate_text(cx, |text| {
6575 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6576 // https://github.com/rutrum/convert-case/issues/16
6577 text.split('\n')
6578 .map(|line| line.to_case(Case::Title))
6579 .join("\n")
6580 })
6581 }
6582
6583 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6584 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6585 }
6586
6587 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6588 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6589 }
6590
6591 pub fn convert_to_upper_camel_case(
6592 &mut self,
6593 _: &ConvertToUpperCamelCase,
6594 cx: &mut ViewContext<Self>,
6595 ) {
6596 self.manipulate_text(cx, |text| {
6597 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6598 // https://github.com/rutrum/convert-case/issues/16
6599 text.split('\n')
6600 .map(|line| line.to_case(Case::UpperCamel))
6601 .join("\n")
6602 })
6603 }
6604
6605 pub fn convert_to_lower_camel_case(
6606 &mut self,
6607 _: &ConvertToLowerCamelCase,
6608 cx: &mut ViewContext<Self>,
6609 ) {
6610 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6611 }
6612
6613 pub fn convert_to_opposite_case(
6614 &mut self,
6615 _: &ConvertToOppositeCase,
6616 cx: &mut ViewContext<Self>,
6617 ) {
6618 self.manipulate_text(cx, |text| {
6619 text.chars()
6620 .fold(String::with_capacity(text.len()), |mut t, c| {
6621 if c.is_uppercase() {
6622 t.extend(c.to_lowercase());
6623 } else {
6624 t.extend(c.to_uppercase());
6625 }
6626 t
6627 })
6628 })
6629 }
6630
6631 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6632 where
6633 Fn: FnMut(&str) -> String,
6634 {
6635 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6636 let buffer = self.buffer.read(cx).snapshot(cx);
6637
6638 let mut new_selections = Vec::new();
6639 let mut edits = Vec::new();
6640 let mut selection_adjustment = 0i32;
6641
6642 for selection in self.selections.all::<usize>(cx) {
6643 let selection_is_empty = selection.is_empty();
6644
6645 let (start, end) = if selection_is_empty {
6646 let word_range = movement::surrounding_word(
6647 &display_map,
6648 selection.start.to_display_point(&display_map),
6649 );
6650 let start = word_range.start.to_offset(&display_map, Bias::Left);
6651 let end = word_range.end.to_offset(&display_map, Bias::Left);
6652 (start, end)
6653 } else {
6654 (selection.start, selection.end)
6655 };
6656
6657 let text = buffer.text_for_range(start..end).collect::<String>();
6658 let old_length = text.len() as i32;
6659 let text = callback(&text);
6660
6661 new_selections.push(Selection {
6662 start: (start as i32 - selection_adjustment) as usize,
6663 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6664 goal: SelectionGoal::None,
6665 ..selection
6666 });
6667
6668 selection_adjustment += old_length - text.len() as i32;
6669
6670 edits.push((start..end, text));
6671 }
6672
6673 self.transact(cx, |this, cx| {
6674 this.buffer.update(cx, |buffer, cx| {
6675 buffer.edit(edits, None, cx);
6676 });
6677
6678 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6679 s.select(new_selections);
6680 });
6681
6682 this.request_autoscroll(Autoscroll::fit(), cx);
6683 });
6684 }
6685
6686 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6687 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6688 let buffer = &display_map.buffer_snapshot;
6689 let selections = self.selections.all::<Point>(cx);
6690
6691 let mut edits = Vec::new();
6692 let mut selections_iter = selections.iter().peekable();
6693 while let Some(selection) = selections_iter.next() {
6694 // Avoid duplicating the same lines twice.
6695 let mut rows = selection.spanned_rows(false, &display_map);
6696
6697 while let Some(next_selection) = selections_iter.peek() {
6698 let next_rows = next_selection.spanned_rows(false, &display_map);
6699 if next_rows.start < rows.end {
6700 rows.end = next_rows.end;
6701 selections_iter.next().unwrap();
6702 } else {
6703 break;
6704 }
6705 }
6706
6707 // Copy the text from the selected row region and splice it either at the start
6708 // or end of the region.
6709 let start = Point::new(rows.start.0, 0);
6710 let end = Point::new(
6711 rows.end.previous_row().0,
6712 buffer.line_len(rows.end.previous_row()),
6713 );
6714 let text = buffer
6715 .text_for_range(start..end)
6716 .chain(Some("\n"))
6717 .collect::<String>();
6718 let insert_location = if upwards {
6719 Point::new(rows.end.0, 0)
6720 } else {
6721 start
6722 };
6723 edits.push((insert_location..insert_location, text));
6724 }
6725
6726 self.transact(cx, |this, cx| {
6727 this.buffer.update(cx, |buffer, cx| {
6728 buffer.edit(edits, None, cx);
6729 });
6730
6731 this.request_autoscroll(Autoscroll::fit(), cx);
6732 });
6733 }
6734
6735 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6736 self.duplicate_line(true, cx);
6737 }
6738
6739 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6740 self.duplicate_line(false, cx);
6741 }
6742
6743 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6744 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6745 let buffer = self.buffer.read(cx).snapshot(cx);
6746
6747 let mut edits = Vec::new();
6748 let mut unfold_ranges = Vec::new();
6749 let mut refold_ranges = Vec::new();
6750
6751 let selections = self.selections.all::<Point>(cx);
6752 let mut selections = selections.iter().peekable();
6753 let mut contiguous_row_selections = Vec::new();
6754 let mut new_selections = Vec::new();
6755
6756 while let Some(selection) = selections.next() {
6757 // Find all the selections that span a contiguous row range
6758 let (start_row, end_row) = consume_contiguous_rows(
6759 &mut contiguous_row_selections,
6760 selection,
6761 &display_map,
6762 &mut selections,
6763 );
6764
6765 // Move the text spanned by the row range to be before the line preceding the row range
6766 if start_row.0 > 0 {
6767 let range_to_move = Point::new(
6768 start_row.previous_row().0,
6769 buffer.line_len(start_row.previous_row()),
6770 )
6771 ..Point::new(
6772 end_row.previous_row().0,
6773 buffer.line_len(end_row.previous_row()),
6774 );
6775 let insertion_point = display_map
6776 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6777 .0;
6778
6779 // Don't move lines across excerpts
6780 if buffer
6781 .excerpt_boundaries_in_range((
6782 Bound::Excluded(insertion_point),
6783 Bound::Included(range_to_move.end),
6784 ))
6785 .next()
6786 .is_none()
6787 {
6788 let text = buffer
6789 .text_for_range(range_to_move.clone())
6790 .flat_map(|s| s.chars())
6791 .skip(1)
6792 .chain(['\n'])
6793 .collect::<String>();
6794
6795 edits.push((
6796 buffer.anchor_after(range_to_move.start)
6797 ..buffer.anchor_before(range_to_move.end),
6798 String::new(),
6799 ));
6800 let insertion_anchor = buffer.anchor_after(insertion_point);
6801 edits.push((insertion_anchor..insertion_anchor, text));
6802
6803 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6804
6805 // Move selections up
6806 new_selections.extend(contiguous_row_selections.drain(..).map(
6807 |mut selection| {
6808 selection.start.row -= row_delta;
6809 selection.end.row -= row_delta;
6810 selection
6811 },
6812 ));
6813
6814 // Move folds up
6815 unfold_ranges.push(range_to_move.clone());
6816 for fold in display_map.folds_in_range(
6817 buffer.anchor_before(range_to_move.start)
6818 ..buffer.anchor_after(range_to_move.end),
6819 ) {
6820 let mut start = fold.range.start.to_point(&buffer);
6821 let mut end = fold.range.end.to_point(&buffer);
6822 start.row -= row_delta;
6823 end.row -= row_delta;
6824 refold_ranges.push((start..end, fold.placeholder.clone()));
6825 }
6826 }
6827 }
6828
6829 // If we didn't move line(s), preserve the existing selections
6830 new_selections.append(&mut contiguous_row_selections);
6831 }
6832
6833 self.transact(cx, |this, cx| {
6834 this.unfold_ranges(&unfold_ranges, true, true, cx);
6835 this.buffer.update(cx, |buffer, cx| {
6836 for (range, text) in edits {
6837 buffer.edit([(range, text)], None, cx);
6838 }
6839 });
6840 this.fold_ranges(refold_ranges, true, cx);
6841 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6842 s.select(new_selections);
6843 })
6844 });
6845 }
6846
6847 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6848 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6849 let buffer = self.buffer.read(cx).snapshot(cx);
6850
6851 let mut edits = Vec::new();
6852 let mut unfold_ranges = Vec::new();
6853 let mut refold_ranges = Vec::new();
6854
6855 let selections = self.selections.all::<Point>(cx);
6856 let mut selections = selections.iter().peekable();
6857 let mut contiguous_row_selections = Vec::new();
6858 let mut new_selections = Vec::new();
6859
6860 while let Some(selection) = selections.next() {
6861 // Find all the selections that span a contiguous row range
6862 let (start_row, end_row) = consume_contiguous_rows(
6863 &mut contiguous_row_selections,
6864 selection,
6865 &display_map,
6866 &mut selections,
6867 );
6868
6869 // Move the text spanned by the row range to be after the last line of the row range
6870 if end_row.0 <= buffer.max_point().row {
6871 let range_to_move =
6872 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6873 let insertion_point = display_map
6874 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6875 .0;
6876
6877 // Don't move lines across excerpt boundaries
6878 if buffer
6879 .excerpt_boundaries_in_range((
6880 Bound::Excluded(range_to_move.start),
6881 Bound::Included(insertion_point),
6882 ))
6883 .next()
6884 .is_none()
6885 {
6886 let mut text = String::from("\n");
6887 text.extend(buffer.text_for_range(range_to_move.clone()));
6888 text.pop(); // Drop trailing newline
6889 edits.push((
6890 buffer.anchor_after(range_to_move.start)
6891 ..buffer.anchor_before(range_to_move.end),
6892 String::new(),
6893 ));
6894 let insertion_anchor = buffer.anchor_after(insertion_point);
6895 edits.push((insertion_anchor..insertion_anchor, text));
6896
6897 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6898
6899 // Move selections down
6900 new_selections.extend(contiguous_row_selections.drain(..).map(
6901 |mut selection| {
6902 selection.start.row += row_delta;
6903 selection.end.row += row_delta;
6904 selection
6905 },
6906 ));
6907
6908 // Move folds down
6909 unfold_ranges.push(range_to_move.clone());
6910 for fold in display_map.folds_in_range(
6911 buffer.anchor_before(range_to_move.start)
6912 ..buffer.anchor_after(range_to_move.end),
6913 ) {
6914 let mut start = fold.range.start.to_point(&buffer);
6915 let mut end = fold.range.end.to_point(&buffer);
6916 start.row += row_delta;
6917 end.row += row_delta;
6918 refold_ranges.push((start..end, fold.placeholder.clone()));
6919 }
6920 }
6921 }
6922
6923 // If we didn't move line(s), preserve the existing selections
6924 new_selections.append(&mut contiguous_row_selections);
6925 }
6926
6927 self.transact(cx, |this, cx| {
6928 this.unfold_ranges(&unfold_ranges, true, true, cx);
6929 this.buffer.update(cx, |buffer, cx| {
6930 for (range, text) in edits {
6931 buffer.edit([(range, text)], None, cx);
6932 }
6933 });
6934 this.fold_ranges(refold_ranges, true, cx);
6935 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6936 });
6937 }
6938
6939 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6940 let text_layout_details = &self.text_layout_details(cx);
6941 self.transact(cx, |this, cx| {
6942 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6943 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6944 let line_mode = s.line_mode;
6945 s.move_with(|display_map, selection| {
6946 if !selection.is_empty() || line_mode {
6947 return;
6948 }
6949
6950 let mut head = selection.head();
6951 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6952 if head.column() == display_map.line_len(head.row()) {
6953 transpose_offset = display_map
6954 .buffer_snapshot
6955 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6956 }
6957
6958 if transpose_offset == 0 {
6959 return;
6960 }
6961
6962 *head.column_mut() += 1;
6963 head = display_map.clip_point(head, Bias::Right);
6964 let goal = SelectionGoal::HorizontalPosition(
6965 display_map
6966 .x_for_display_point(head, text_layout_details)
6967 .into(),
6968 );
6969 selection.collapse_to(head, goal);
6970
6971 let transpose_start = display_map
6972 .buffer_snapshot
6973 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6974 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6975 let transpose_end = display_map
6976 .buffer_snapshot
6977 .clip_offset(transpose_offset + 1, Bias::Right);
6978 if let Some(ch) =
6979 display_map.buffer_snapshot.chars_at(transpose_start).next()
6980 {
6981 edits.push((transpose_start..transpose_offset, String::new()));
6982 edits.push((transpose_end..transpose_end, ch.to_string()));
6983 }
6984 }
6985 });
6986 edits
6987 });
6988 this.buffer
6989 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6990 let selections = this.selections.all::<usize>(cx);
6991 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6992 s.select(selections);
6993 });
6994 });
6995 }
6996
6997 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6998 self.rewrap_impl(true, cx)
6999 }
7000
7001 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
7002 let buffer = self.buffer.read(cx).snapshot(cx);
7003 let selections = self.selections.all::<Point>(cx);
7004 let mut selections = selections.iter().peekable();
7005
7006 let mut edits = Vec::new();
7007 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7008
7009 while let Some(selection) = selections.next() {
7010 let mut start_row = selection.start.row;
7011 let mut end_row = selection.end.row;
7012
7013 // Skip selections that overlap with a range that has already been rewrapped.
7014 let selection_range = start_row..end_row;
7015 if rewrapped_row_ranges
7016 .iter()
7017 .any(|range| range.overlaps(&selection_range))
7018 {
7019 continue;
7020 }
7021
7022 let mut should_rewrap = !only_text;
7023
7024 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7025 match language_scope.language_name().0.as_ref() {
7026 "Markdown" | "Plain Text" => {
7027 should_rewrap = true;
7028 }
7029 _ => {}
7030 }
7031 }
7032
7033 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7034
7035 // Since not all lines in the selection may be at the same indent
7036 // level, choose the indent size that is the most common between all
7037 // of the lines.
7038 //
7039 // If there is a tie, we use the deepest indent.
7040 let (indent_size, indent_end) = {
7041 let mut indent_size_occurrences = HashMap::default();
7042 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7043
7044 for row in start_row..=end_row {
7045 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7046 rows_by_indent_size.entry(indent).or_default().push(row);
7047 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7048 }
7049
7050 let indent_size = indent_size_occurrences
7051 .into_iter()
7052 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7053 .map(|(indent, _)| indent)
7054 .unwrap_or_default();
7055 let row = rows_by_indent_size[&indent_size][0];
7056 let indent_end = Point::new(row, indent_size.len);
7057
7058 (indent_size, indent_end)
7059 };
7060
7061 let mut line_prefix = indent_size.chars().collect::<String>();
7062
7063 if let Some(comment_prefix) =
7064 buffer
7065 .language_scope_at(selection.head())
7066 .and_then(|language| {
7067 language
7068 .line_comment_prefixes()
7069 .iter()
7070 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7071 .cloned()
7072 })
7073 {
7074 line_prefix.push_str(&comment_prefix);
7075 should_rewrap = true;
7076 }
7077
7078 if !should_rewrap {
7079 continue;
7080 }
7081
7082 if selection.is_empty() {
7083 'expand_upwards: while start_row > 0 {
7084 let prev_row = start_row - 1;
7085 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7086 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7087 {
7088 start_row = prev_row;
7089 } else {
7090 break 'expand_upwards;
7091 }
7092 }
7093
7094 'expand_downwards: while end_row < buffer.max_point().row {
7095 let next_row = end_row + 1;
7096 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7097 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7098 {
7099 end_row = next_row;
7100 } else {
7101 break 'expand_downwards;
7102 }
7103 }
7104 }
7105
7106 let start = Point::new(start_row, 0);
7107 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7108 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7109 let Some(lines_without_prefixes) = selection_text
7110 .lines()
7111 .map(|line| {
7112 line.strip_prefix(&line_prefix)
7113 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7114 .ok_or_else(|| {
7115 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7116 })
7117 })
7118 .collect::<Result<Vec<_>, _>>()
7119 .log_err()
7120 else {
7121 continue;
7122 };
7123
7124 let wrap_column = buffer
7125 .settings_at(Point::new(start_row, 0), cx)
7126 .preferred_line_length as usize;
7127 let wrapped_text = wrap_with_prefix(
7128 line_prefix,
7129 lines_without_prefixes.join(" "),
7130 wrap_column,
7131 tab_size,
7132 );
7133
7134 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7135 let mut offset = start.to_offset(&buffer);
7136 let mut moved_since_edit = true;
7137
7138 for change in diff.iter_all_changes() {
7139 let value = change.value();
7140 match change.tag() {
7141 ChangeTag::Equal => {
7142 offset += value.len();
7143 moved_since_edit = true;
7144 }
7145 ChangeTag::Delete => {
7146 let start = buffer.anchor_after(offset);
7147 let end = buffer.anchor_before(offset + value.len());
7148
7149 if moved_since_edit {
7150 edits.push((start..end, String::new()));
7151 } else {
7152 edits.last_mut().unwrap().0.end = end;
7153 }
7154
7155 offset += value.len();
7156 moved_since_edit = false;
7157 }
7158 ChangeTag::Insert => {
7159 if moved_since_edit {
7160 let anchor = buffer.anchor_after(offset);
7161 edits.push((anchor..anchor, value.to_string()));
7162 } else {
7163 edits.last_mut().unwrap().1.push_str(value);
7164 }
7165
7166 moved_since_edit = false;
7167 }
7168 }
7169 }
7170
7171 rewrapped_row_ranges.push(start_row..=end_row);
7172 }
7173
7174 self.buffer
7175 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7176 }
7177
7178 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7179 let mut text = String::new();
7180 let buffer = self.buffer.read(cx).snapshot(cx);
7181 let mut selections = self.selections.all::<Point>(cx);
7182 let mut clipboard_selections = Vec::with_capacity(selections.len());
7183 {
7184 let max_point = buffer.max_point();
7185 let mut is_first = true;
7186 for selection in &mut selections {
7187 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7188 if is_entire_line {
7189 selection.start = Point::new(selection.start.row, 0);
7190 if !selection.is_empty() && selection.end.column == 0 {
7191 selection.end = cmp::min(max_point, selection.end);
7192 } else {
7193 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7194 }
7195 selection.goal = SelectionGoal::None;
7196 }
7197 if is_first {
7198 is_first = false;
7199 } else {
7200 text += "\n";
7201 }
7202 let mut len = 0;
7203 for chunk in buffer.text_for_range(selection.start..selection.end) {
7204 text.push_str(chunk);
7205 len += chunk.len();
7206 }
7207 clipboard_selections.push(ClipboardSelection {
7208 len,
7209 is_entire_line,
7210 first_line_indent: buffer
7211 .indent_size_for_line(MultiBufferRow(selection.start.row))
7212 .len,
7213 });
7214 }
7215 }
7216
7217 self.transact(cx, |this, cx| {
7218 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7219 s.select(selections);
7220 });
7221 this.insert("", cx);
7222 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7223 text,
7224 clipboard_selections,
7225 ));
7226 });
7227 }
7228
7229 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7230 let selections = self.selections.all::<Point>(cx);
7231 let buffer = self.buffer.read(cx).read(cx);
7232 let mut text = String::new();
7233
7234 let mut clipboard_selections = Vec::with_capacity(selections.len());
7235 {
7236 let max_point = buffer.max_point();
7237 let mut is_first = true;
7238 for selection in selections.iter() {
7239 let mut start = selection.start;
7240 let mut end = selection.end;
7241 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7242 if is_entire_line {
7243 start = Point::new(start.row, 0);
7244 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7245 }
7246 if is_first {
7247 is_first = false;
7248 } else {
7249 text += "\n";
7250 }
7251 let mut len = 0;
7252 for chunk in buffer.text_for_range(start..end) {
7253 text.push_str(chunk);
7254 len += chunk.len();
7255 }
7256 clipboard_selections.push(ClipboardSelection {
7257 len,
7258 is_entire_line,
7259 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7260 });
7261 }
7262 }
7263
7264 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7265 text,
7266 clipboard_selections,
7267 ));
7268 }
7269
7270 pub fn do_paste(
7271 &mut self,
7272 text: &String,
7273 clipboard_selections: Option<Vec<ClipboardSelection>>,
7274 handle_entire_lines: bool,
7275 cx: &mut ViewContext<Self>,
7276 ) {
7277 if self.read_only(cx) {
7278 return;
7279 }
7280
7281 let clipboard_text = Cow::Borrowed(text);
7282
7283 self.transact(cx, |this, cx| {
7284 if let Some(mut clipboard_selections) = clipboard_selections {
7285 let old_selections = this.selections.all::<usize>(cx);
7286 let all_selections_were_entire_line =
7287 clipboard_selections.iter().all(|s| s.is_entire_line);
7288 let first_selection_indent_column =
7289 clipboard_selections.first().map(|s| s.first_line_indent);
7290 if clipboard_selections.len() != old_selections.len() {
7291 clipboard_selections.drain(..);
7292 }
7293 let cursor_offset = this.selections.last::<usize>(cx).head();
7294 let mut auto_indent_on_paste = true;
7295
7296 this.buffer.update(cx, |buffer, cx| {
7297 let snapshot = buffer.read(cx);
7298 auto_indent_on_paste =
7299 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7300
7301 let mut start_offset = 0;
7302 let mut edits = Vec::new();
7303 let mut original_indent_columns = Vec::new();
7304 for (ix, selection) in old_selections.iter().enumerate() {
7305 let to_insert;
7306 let entire_line;
7307 let original_indent_column;
7308 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7309 let end_offset = start_offset + clipboard_selection.len;
7310 to_insert = &clipboard_text[start_offset..end_offset];
7311 entire_line = clipboard_selection.is_entire_line;
7312 start_offset = end_offset + 1;
7313 original_indent_column = Some(clipboard_selection.first_line_indent);
7314 } else {
7315 to_insert = clipboard_text.as_str();
7316 entire_line = all_selections_were_entire_line;
7317 original_indent_column = first_selection_indent_column
7318 }
7319
7320 // If the corresponding selection was empty when this slice of the
7321 // clipboard text was written, then the entire line containing the
7322 // selection was copied. If this selection is also currently empty,
7323 // then paste the line before the current line of the buffer.
7324 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7325 let column = selection.start.to_point(&snapshot).column as usize;
7326 let line_start = selection.start - column;
7327 line_start..line_start
7328 } else {
7329 selection.range()
7330 };
7331
7332 edits.push((range, to_insert));
7333 original_indent_columns.extend(original_indent_column);
7334 }
7335 drop(snapshot);
7336
7337 buffer.edit(
7338 edits,
7339 if auto_indent_on_paste {
7340 Some(AutoindentMode::Block {
7341 original_indent_columns,
7342 })
7343 } else {
7344 None
7345 },
7346 cx,
7347 );
7348 });
7349
7350 let selections = this.selections.all::<usize>(cx);
7351 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7352 } else {
7353 this.insert(&clipboard_text, cx);
7354 }
7355 });
7356 }
7357
7358 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7359 if let Some(item) = cx.read_from_clipboard() {
7360 let entries = item.entries();
7361
7362 match entries.first() {
7363 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7364 // of all the pasted entries.
7365 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7366 .do_paste(
7367 clipboard_string.text(),
7368 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7369 true,
7370 cx,
7371 ),
7372 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7373 }
7374 }
7375 }
7376
7377 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7378 if self.read_only(cx) {
7379 return;
7380 }
7381
7382 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7383 if let Some((selections, _)) =
7384 self.selection_history.transaction(transaction_id).cloned()
7385 {
7386 self.change_selections(None, cx, |s| {
7387 s.select_anchors(selections.to_vec());
7388 });
7389 }
7390 self.request_autoscroll(Autoscroll::fit(), cx);
7391 self.unmark_text(cx);
7392 self.refresh_inline_completion(true, false, cx);
7393 cx.emit(EditorEvent::Edited { transaction_id });
7394 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7395 }
7396 }
7397
7398 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7399 if self.read_only(cx) {
7400 return;
7401 }
7402
7403 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7404 if let Some((_, Some(selections))) =
7405 self.selection_history.transaction(transaction_id).cloned()
7406 {
7407 self.change_selections(None, cx, |s| {
7408 s.select_anchors(selections.to_vec());
7409 });
7410 }
7411 self.request_autoscroll(Autoscroll::fit(), cx);
7412 self.unmark_text(cx);
7413 self.refresh_inline_completion(true, false, cx);
7414 cx.emit(EditorEvent::Edited { transaction_id });
7415 }
7416 }
7417
7418 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7419 self.buffer
7420 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7421 }
7422
7423 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7424 self.buffer
7425 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7426 }
7427
7428 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7429 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7430 let line_mode = s.line_mode;
7431 s.move_with(|map, selection| {
7432 let cursor = if selection.is_empty() && !line_mode {
7433 movement::left(map, selection.start)
7434 } else {
7435 selection.start
7436 };
7437 selection.collapse_to(cursor, SelectionGoal::None);
7438 });
7439 })
7440 }
7441
7442 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7443 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7444 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7445 })
7446 }
7447
7448 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7449 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7450 let line_mode = s.line_mode;
7451 s.move_with(|map, selection| {
7452 let cursor = if selection.is_empty() && !line_mode {
7453 movement::right(map, selection.end)
7454 } else {
7455 selection.end
7456 };
7457 selection.collapse_to(cursor, SelectionGoal::None)
7458 });
7459 })
7460 }
7461
7462 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7463 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7464 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7465 })
7466 }
7467
7468 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7469 if self.take_rename(true, cx).is_some() {
7470 return;
7471 }
7472
7473 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7474 cx.propagate();
7475 return;
7476 }
7477
7478 let text_layout_details = &self.text_layout_details(cx);
7479 let selection_count = self.selections.count();
7480 let first_selection = self.selections.first_anchor();
7481
7482 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7483 let line_mode = s.line_mode;
7484 s.move_with(|map, selection| {
7485 if !selection.is_empty() && !line_mode {
7486 selection.goal = SelectionGoal::None;
7487 }
7488 let (cursor, goal) = movement::up(
7489 map,
7490 selection.start,
7491 selection.goal,
7492 false,
7493 text_layout_details,
7494 );
7495 selection.collapse_to(cursor, goal);
7496 });
7497 });
7498
7499 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7500 {
7501 cx.propagate();
7502 }
7503 }
7504
7505 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7506 if self.take_rename(true, cx).is_some() {
7507 return;
7508 }
7509
7510 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7511 cx.propagate();
7512 return;
7513 }
7514
7515 let text_layout_details = &self.text_layout_details(cx);
7516
7517 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7518 let line_mode = s.line_mode;
7519 s.move_with(|map, selection| {
7520 if !selection.is_empty() && !line_mode {
7521 selection.goal = SelectionGoal::None;
7522 }
7523 let (cursor, goal) = movement::up_by_rows(
7524 map,
7525 selection.start,
7526 action.lines,
7527 selection.goal,
7528 false,
7529 text_layout_details,
7530 );
7531 selection.collapse_to(cursor, goal);
7532 });
7533 })
7534 }
7535
7536 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7537 if self.take_rename(true, cx).is_some() {
7538 return;
7539 }
7540
7541 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7542 cx.propagate();
7543 return;
7544 }
7545
7546 let text_layout_details = &self.text_layout_details(cx);
7547
7548 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7549 let line_mode = s.line_mode;
7550 s.move_with(|map, selection| {
7551 if !selection.is_empty() && !line_mode {
7552 selection.goal = SelectionGoal::None;
7553 }
7554 let (cursor, goal) = movement::down_by_rows(
7555 map,
7556 selection.start,
7557 action.lines,
7558 selection.goal,
7559 false,
7560 text_layout_details,
7561 );
7562 selection.collapse_to(cursor, goal);
7563 });
7564 })
7565 }
7566
7567 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7568 let text_layout_details = &self.text_layout_details(cx);
7569 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7570 s.move_heads_with(|map, head, goal| {
7571 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7572 })
7573 })
7574 }
7575
7576 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7577 let text_layout_details = &self.text_layout_details(cx);
7578 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7579 s.move_heads_with(|map, head, goal| {
7580 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7581 })
7582 })
7583 }
7584
7585 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7586 let Some(row_count) = self.visible_row_count() else {
7587 return;
7588 };
7589
7590 let text_layout_details = &self.text_layout_details(cx);
7591
7592 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7593 s.move_heads_with(|map, head, goal| {
7594 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7595 })
7596 })
7597 }
7598
7599 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7600 if self.take_rename(true, cx).is_some() {
7601 return;
7602 }
7603
7604 if self
7605 .context_menu
7606 .write()
7607 .as_mut()
7608 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7609 .unwrap_or(false)
7610 {
7611 return;
7612 }
7613
7614 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7615 cx.propagate();
7616 return;
7617 }
7618
7619 let Some(row_count) = self.visible_row_count() else {
7620 return;
7621 };
7622
7623 let autoscroll = if action.center_cursor {
7624 Autoscroll::center()
7625 } else {
7626 Autoscroll::fit()
7627 };
7628
7629 let text_layout_details = &self.text_layout_details(cx);
7630
7631 self.change_selections(Some(autoscroll), cx, |s| {
7632 let line_mode = s.line_mode;
7633 s.move_with(|map, selection| {
7634 if !selection.is_empty() && !line_mode {
7635 selection.goal = SelectionGoal::None;
7636 }
7637 let (cursor, goal) = movement::up_by_rows(
7638 map,
7639 selection.end,
7640 row_count,
7641 selection.goal,
7642 false,
7643 text_layout_details,
7644 );
7645 selection.collapse_to(cursor, goal);
7646 });
7647 });
7648 }
7649
7650 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7651 let text_layout_details = &self.text_layout_details(cx);
7652 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7653 s.move_heads_with(|map, head, goal| {
7654 movement::up(map, head, goal, false, text_layout_details)
7655 })
7656 })
7657 }
7658
7659 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7660 self.take_rename(true, cx);
7661
7662 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7663 cx.propagate();
7664 return;
7665 }
7666
7667 let text_layout_details = &self.text_layout_details(cx);
7668 let selection_count = self.selections.count();
7669 let first_selection = self.selections.first_anchor();
7670
7671 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7672 let line_mode = s.line_mode;
7673 s.move_with(|map, selection| {
7674 if !selection.is_empty() && !line_mode {
7675 selection.goal = SelectionGoal::None;
7676 }
7677 let (cursor, goal) = movement::down(
7678 map,
7679 selection.end,
7680 selection.goal,
7681 false,
7682 text_layout_details,
7683 );
7684 selection.collapse_to(cursor, goal);
7685 });
7686 });
7687
7688 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7689 {
7690 cx.propagate();
7691 }
7692 }
7693
7694 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7695 let Some(row_count) = self.visible_row_count() else {
7696 return;
7697 };
7698
7699 let text_layout_details = &self.text_layout_details(cx);
7700
7701 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7702 s.move_heads_with(|map, head, goal| {
7703 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7704 })
7705 })
7706 }
7707
7708 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7709 if self.take_rename(true, cx).is_some() {
7710 return;
7711 }
7712
7713 if self
7714 .context_menu
7715 .write()
7716 .as_mut()
7717 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7718 .unwrap_or(false)
7719 {
7720 return;
7721 }
7722
7723 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7724 cx.propagate();
7725 return;
7726 }
7727
7728 let Some(row_count) = self.visible_row_count() else {
7729 return;
7730 };
7731
7732 let autoscroll = if action.center_cursor {
7733 Autoscroll::center()
7734 } else {
7735 Autoscroll::fit()
7736 };
7737
7738 let text_layout_details = &self.text_layout_details(cx);
7739 self.change_selections(Some(autoscroll), cx, |s| {
7740 let line_mode = s.line_mode;
7741 s.move_with(|map, selection| {
7742 if !selection.is_empty() && !line_mode {
7743 selection.goal = SelectionGoal::None;
7744 }
7745 let (cursor, goal) = movement::down_by_rows(
7746 map,
7747 selection.end,
7748 row_count,
7749 selection.goal,
7750 false,
7751 text_layout_details,
7752 );
7753 selection.collapse_to(cursor, goal);
7754 });
7755 });
7756 }
7757
7758 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7759 let text_layout_details = &self.text_layout_details(cx);
7760 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7761 s.move_heads_with(|map, head, goal| {
7762 movement::down(map, head, goal, false, text_layout_details)
7763 })
7764 });
7765 }
7766
7767 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7768 if let Some(context_menu) = self.context_menu.write().as_mut() {
7769 context_menu.select_first(self.completion_provider.as_deref(), cx);
7770 }
7771 }
7772
7773 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7774 if let Some(context_menu) = self.context_menu.write().as_mut() {
7775 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7776 }
7777 }
7778
7779 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7780 if let Some(context_menu) = self.context_menu.write().as_mut() {
7781 context_menu.select_next(self.completion_provider.as_deref(), cx);
7782 }
7783 }
7784
7785 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7786 if let Some(context_menu) = self.context_menu.write().as_mut() {
7787 context_menu.select_last(self.completion_provider.as_deref(), cx);
7788 }
7789 }
7790
7791 pub fn move_to_previous_word_start(
7792 &mut self,
7793 _: &MoveToPreviousWordStart,
7794 cx: &mut ViewContext<Self>,
7795 ) {
7796 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7797 s.move_cursors_with(|map, head, _| {
7798 (
7799 movement::previous_word_start(map, head),
7800 SelectionGoal::None,
7801 )
7802 });
7803 })
7804 }
7805
7806 pub fn move_to_previous_subword_start(
7807 &mut self,
7808 _: &MoveToPreviousSubwordStart,
7809 cx: &mut ViewContext<Self>,
7810 ) {
7811 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7812 s.move_cursors_with(|map, head, _| {
7813 (
7814 movement::previous_subword_start(map, head),
7815 SelectionGoal::None,
7816 )
7817 });
7818 })
7819 }
7820
7821 pub fn select_to_previous_word_start(
7822 &mut self,
7823 _: &SelectToPreviousWordStart,
7824 cx: &mut ViewContext<Self>,
7825 ) {
7826 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7827 s.move_heads_with(|map, head, _| {
7828 (
7829 movement::previous_word_start(map, head),
7830 SelectionGoal::None,
7831 )
7832 });
7833 })
7834 }
7835
7836 pub fn select_to_previous_subword_start(
7837 &mut self,
7838 _: &SelectToPreviousSubwordStart,
7839 cx: &mut ViewContext<Self>,
7840 ) {
7841 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7842 s.move_heads_with(|map, head, _| {
7843 (
7844 movement::previous_subword_start(map, head),
7845 SelectionGoal::None,
7846 )
7847 });
7848 })
7849 }
7850
7851 pub fn delete_to_previous_word_start(
7852 &mut self,
7853 action: &DeleteToPreviousWordStart,
7854 cx: &mut ViewContext<Self>,
7855 ) {
7856 self.transact(cx, |this, cx| {
7857 this.select_autoclose_pair(cx);
7858 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7859 let line_mode = s.line_mode;
7860 s.move_with(|map, selection| {
7861 if selection.is_empty() && !line_mode {
7862 let cursor = if action.ignore_newlines {
7863 movement::previous_word_start(map, selection.head())
7864 } else {
7865 movement::previous_word_start_or_newline(map, selection.head())
7866 };
7867 selection.set_head(cursor, SelectionGoal::None);
7868 }
7869 });
7870 });
7871 this.insert("", cx);
7872 });
7873 }
7874
7875 pub fn delete_to_previous_subword_start(
7876 &mut self,
7877 _: &DeleteToPreviousSubwordStart,
7878 cx: &mut ViewContext<Self>,
7879 ) {
7880 self.transact(cx, |this, cx| {
7881 this.select_autoclose_pair(cx);
7882 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7883 let line_mode = s.line_mode;
7884 s.move_with(|map, selection| {
7885 if selection.is_empty() && !line_mode {
7886 let cursor = movement::previous_subword_start(map, selection.head());
7887 selection.set_head(cursor, SelectionGoal::None);
7888 }
7889 });
7890 });
7891 this.insert("", cx);
7892 });
7893 }
7894
7895 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7896 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7897 s.move_cursors_with(|map, head, _| {
7898 (movement::next_word_end(map, head), SelectionGoal::None)
7899 });
7900 })
7901 }
7902
7903 pub fn move_to_next_subword_end(
7904 &mut self,
7905 _: &MoveToNextSubwordEnd,
7906 cx: &mut ViewContext<Self>,
7907 ) {
7908 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7909 s.move_cursors_with(|map, head, _| {
7910 (movement::next_subword_end(map, head), SelectionGoal::None)
7911 });
7912 })
7913 }
7914
7915 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7916 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7917 s.move_heads_with(|map, head, _| {
7918 (movement::next_word_end(map, head), SelectionGoal::None)
7919 });
7920 })
7921 }
7922
7923 pub fn select_to_next_subword_end(
7924 &mut self,
7925 _: &SelectToNextSubwordEnd,
7926 cx: &mut ViewContext<Self>,
7927 ) {
7928 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7929 s.move_heads_with(|map, head, _| {
7930 (movement::next_subword_end(map, head), SelectionGoal::None)
7931 });
7932 })
7933 }
7934
7935 pub fn delete_to_next_word_end(
7936 &mut self,
7937 action: &DeleteToNextWordEnd,
7938 cx: &mut ViewContext<Self>,
7939 ) {
7940 self.transact(cx, |this, cx| {
7941 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7942 let line_mode = s.line_mode;
7943 s.move_with(|map, selection| {
7944 if selection.is_empty() && !line_mode {
7945 let cursor = if action.ignore_newlines {
7946 movement::next_word_end(map, selection.head())
7947 } else {
7948 movement::next_word_end_or_newline(map, selection.head())
7949 };
7950 selection.set_head(cursor, SelectionGoal::None);
7951 }
7952 });
7953 });
7954 this.insert("", cx);
7955 });
7956 }
7957
7958 pub fn delete_to_next_subword_end(
7959 &mut self,
7960 _: &DeleteToNextSubwordEnd,
7961 cx: &mut ViewContext<Self>,
7962 ) {
7963 self.transact(cx, |this, cx| {
7964 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7965 s.move_with(|map, selection| {
7966 if selection.is_empty() {
7967 let cursor = movement::next_subword_end(map, selection.head());
7968 selection.set_head(cursor, SelectionGoal::None);
7969 }
7970 });
7971 });
7972 this.insert("", cx);
7973 });
7974 }
7975
7976 pub fn move_to_beginning_of_line(
7977 &mut self,
7978 action: &MoveToBeginningOfLine,
7979 cx: &mut ViewContext<Self>,
7980 ) {
7981 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7982 s.move_cursors_with(|map, head, _| {
7983 (
7984 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7985 SelectionGoal::None,
7986 )
7987 });
7988 })
7989 }
7990
7991 pub fn select_to_beginning_of_line(
7992 &mut self,
7993 action: &SelectToBeginningOfLine,
7994 cx: &mut ViewContext<Self>,
7995 ) {
7996 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7997 s.move_heads_with(|map, head, _| {
7998 (
7999 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8000 SelectionGoal::None,
8001 )
8002 });
8003 });
8004 }
8005
8006 pub fn delete_to_beginning_of_line(
8007 &mut self,
8008 _: &DeleteToBeginningOfLine,
8009 cx: &mut ViewContext<Self>,
8010 ) {
8011 self.transact(cx, |this, cx| {
8012 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8013 s.move_with(|_, selection| {
8014 selection.reversed = true;
8015 });
8016 });
8017
8018 this.select_to_beginning_of_line(
8019 &SelectToBeginningOfLine {
8020 stop_at_soft_wraps: false,
8021 },
8022 cx,
8023 );
8024 this.backspace(&Backspace, cx);
8025 });
8026 }
8027
8028 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8029 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8030 s.move_cursors_with(|map, head, _| {
8031 (
8032 movement::line_end(map, head, action.stop_at_soft_wraps),
8033 SelectionGoal::None,
8034 )
8035 });
8036 })
8037 }
8038
8039 pub fn select_to_end_of_line(
8040 &mut self,
8041 action: &SelectToEndOfLine,
8042 cx: &mut ViewContext<Self>,
8043 ) {
8044 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8045 s.move_heads_with(|map, head, _| {
8046 (
8047 movement::line_end(map, head, action.stop_at_soft_wraps),
8048 SelectionGoal::None,
8049 )
8050 });
8051 })
8052 }
8053
8054 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8055 self.transact(cx, |this, cx| {
8056 this.select_to_end_of_line(
8057 &SelectToEndOfLine {
8058 stop_at_soft_wraps: false,
8059 },
8060 cx,
8061 );
8062 this.delete(&Delete, cx);
8063 });
8064 }
8065
8066 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8067 self.transact(cx, |this, cx| {
8068 this.select_to_end_of_line(
8069 &SelectToEndOfLine {
8070 stop_at_soft_wraps: false,
8071 },
8072 cx,
8073 );
8074 this.cut(&Cut, cx);
8075 });
8076 }
8077
8078 pub fn move_to_start_of_paragraph(
8079 &mut self,
8080 _: &MoveToStartOfParagraph,
8081 cx: &mut ViewContext<Self>,
8082 ) {
8083 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8084 cx.propagate();
8085 return;
8086 }
8087
8088 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8089 s.move_with(|map, selection| {
8090 selection.collapse_to(
8091 movement::start_of_paragraph(map, selection.head(), 1),
8092 SelectionGoal::None,
8093 )
8094 });
8095 })
8096 }
8097
8098 pub fn move_to_end_of_paragraph(
8099 &mut self,
8100 _: &MoveToEndOfParagraph,
8101 cx: &mut ViewContext<Self>,
8102 ) {
8103 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8104 cx.propagate();
8105 return;
8106 }
8107
8108 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8109 s.move_with(|map, selection| {
8110 selection.collapse_to(
8111 movement::end_of_paragraph(map, selection.head(), 1),
8112 SelectionGoal::None,
8113 )
8114 });
8115 })
8116 }
8117
8118 pub fn select_to_start_of_paragraph(
8119 &mut self,
8120 _: &SelectToStartOfParagraph,
8121 cx: &mut ViewContext<Self>,
8122 ) {
8123 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8124 cx.propagate();
8125 return;
8126 }
8127
8128 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8129 s.move_heads_with(|map, head, _| {
8130 (
8131 movement::start_of_paragraph(map, head, 1),
8132 SelectionGoal::None,
8133 )
8134 });
8135 })
8136 }
8137
8138 pub fn select_to_end_of_paragraph(
8139 &mut self,
8140 _: &SelectToEndOfParagraph,
8141 cx: &mut ViewContext<Self>,
8142 ) {
8143 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8144 cx.propagate();
8145 return;
8146 }
8147
8148 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8149 s.move_heads_with(|map, head, _| {
8150 (
8151 movement::end_of_paragraph(map, head, 1),
8152 SelectionGoal::None,
8153 )
8154 });
8155 })
8156 }
8157
8158 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8159 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8160 cx.propagate();
8161 return;
8162 }
8163
8164 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8165 s.select_ranges(vec![0..0]);
8166 });
8167 }
8168
8169 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8170 let mut selection = self.selections.last::<Point>(cx);
8171 selection.set_head(Point::zero(), SelectionGoal::None);
8172
8173 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8174 s.select(vec![selection]);
8175 });
8176 }
8177
8178 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8179 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8180 cx.propagate();
8181 return;
8182 }
8183
8184 let cursor = self.buffer.read(cx).read(cx).len();
8185 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8186 s.select_ranges(vec![cursor..cursor])
8187 });
8188 }
8189
8190 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8191 self.nav_history = nav_history;
8192 }
8193
8194 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8195 self.nav_history.as_ref()
8196 }
8197
8198 fn push_to_nav_history(
8199 &mut self,
8200 cursor_anchor: Anchor,
8201 new_position: Option<Point>,
8202 cx: &mut ViewContext<Self>,
8203 ) {
8204 if let Some(nav_history) = self.nav_history.as_mut() {
8205 let buffer = self.buffer.read(cx).read(cx);
8206 let cursor_position = cursor_anchor.to_point(&buffer);
8207 let scroll_state = self.scroll_manager.anchor();
8208 let scroll_top_row = scroll_state.top_row(&buffer);
8209 drop(buffer);
8210
8211 if let Some(new_position) = new_position {
8212 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8213 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8214 return;
8215 }
8216 }
8217
8218 nav_history.push(
8219 Some(NavigationData {
8220 cursor_anchor,
8221 cursor_position,
8222 scroll_anchor: scroll_state,
8223 scroll_top_row,
8224 }),
8225 cx,
8226 );
8227 }
8228 }
8229
8230 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8231 let buffer = self.buffer.read(cx).snapshot(cx);
8232 let mut selection = self.selections.first::<usize>(cx);
8233 selection.set_head(buffer.len(), SelectionGoal::None);
8234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8235 s.select(vec![selection]);
8236 });
8237 }
8238
8239 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8240 let end = self.buffer.read(cx).read(cx).len();
8241 self.change_selections(None, cx, |s| {
8242 s.select_ranges(vec![0..end]);
8243 });
8244 }
8245
8246 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8247 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8248 let mut selections = self.selections.all::<Point>(cx);
8249 let max_point = display_map.buffer_snapshot.max_point();
8250 for selection in &mut selections {
8251 let rows = selection.spanned_rows(true, &display_map);
8252 selection.start = Point::new(rows.start.0, 0);
8253 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8254 selection.reversed = false;
8255 }
8256 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8257 s.select(selections);
8258 });
8259 }
8260
8261 pub fn split_selection_into_lines(
8262 &mut self,
8263 _: &SplitSelectionIntoLines,
8264 cx: &mut ViewContext<Self>,
8265 ) {
8266 let mut to_unfold = Vec::new();
8267 let mut new_selection_ranges = Vec::new();
8268 {
8269 let selections = self.selections.all::<Point>(cx);
8270 let buffer = self.buffer.read(cx).read(cx);
8271 for selection in selections {
8272 for row in selection.start.row..selection.end.row {
8273 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8274 new_selection_ranges.push(cursor..cursor);
8275 }
8276 new_selection_ranges.push(selection.end..selection.end);
8277 to_unfold.push(selection.start..selection.end);
8278 }
8279 }
8280 self.unfold_ranges(&to_unfold, true, true, cx);
8281 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8282 s.select_ranges(new_selection_ranges);
8283 });
8284 }
8285
8286 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8287 self.add_selection(true, cx);
8288 }
8289
8290 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8291 self.add_selection(false, cx);
8292 }
8293
8294 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8295 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8296 let mut selections = self.selections.all::<Point>(cx);
8297 let text_layout_details = self.text_layout_details(cx);
8298 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8299 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8300 let range = oldest_selection.display_range(&display_map).sorted();
8301
8302 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8303 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8304 let positions = start_x.min(end_x)..start_x.max(end_x);
8305
8306 selections.clear();
8307 let mut stack = Vec::new();
8308 for row in range.start.row().0..=range.end.row().0 {
8309 if let Some(selection) = self.selections.build_columnar_selection(
8310 &display_map,
8311 DisplayRow(row),
8312 &positions,
8313 oldest_selection.reversed,
8314 &text_layout_details,
8315 ) {
8316 stack.push(selection.id);
8317 selections.push(selection);
8318 }
8319 }
8320
8321 if above {
8322 stack.reverse();
8323 }
8324
8325 AddSelectionsState { above, stack }
8326 });
8327
8328 let last_added_selection = *state.stack.last().unwrap();
8329 let mut new_selections = Vec::new();
8330 if above == state.above {
8331 let end_row = if above {
8332 DisplayRow(0)
8333 } else {
8334 display_map.max_point().row()
8335 };
8336
8337 'outer: for selection in selections {
8338 if selection.id == last_added_selection {
8339 let range = selection.display_range(&display_map).sorted();
8340 debug_assert_eq!(range.start.row(), range.end.row());
8341 let mut row = range.start.row();
8342 let positions =
8343 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8344 px(start)..px(end)
8345 } else {
8346 let start_x =
8347 display_map.x_for_display_point(range.start, &text_layout_details);
8348 let end_x =
8349 display_map.x_for_display_point(range.end, &text_layout_details);
8350 start_x.min(end_x)..start_x.max(end_x)
8351 };
8352
8353 while row != end_row {
8354 if above {
8355 row.0 -= 1;
8356 } else {
8357 row.0 += 1;
8358 }
8359
8360 if let Some(new_selection) = self.selections.build_columnar_selection(
8361 &display_map,
8362 row,
8363 &positions,
8364 selection.reversed,
8365 &text_layout_details,
8366 ) {
8367 state.stack.push(new_selection.id);
8368 if above {
8369 new_selections.push(new_selection);
8370 new_selections.push(selection);
8371 } else {
8372 new_selections.push(selection);
8373 new_selections.push(new_selection);
8374 }
8375
8376 continue 'outer;
8377 }
8378 }
8379 }
8380
8381 new_selections.push(selection);
8382 }
8383 } else {
8384 new_selections = selections;
8385 new_selections.retain(|s| s.id != last_added_selection);
8386 state.stack.pop();
8387 }
8388
8389 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8390 s.select(new_selections);
8391 });
8392 if state.stack.len() > 1 {
8393 self.add_selections_state = Some(state);
8394 }
8395 }
8396
8397 pub fn select_next_match_internal(
8398 &mut self,
8399 display_map: &DisplaySnapshot,
8400 replace_newest: bool,
8401 autoscroll: Option<Autoscroll>,
8402 cx: &mut ViewContext<Self>,
8403 ) -> Result<()> {
8404 fn select_next_match_ranges(
8405 this: &mut Editor,
8406 range: Range<usize>,
8407 replace_newest: bool,
8408 auto_scroll: Option<Autoscroll>,
8409 cx: &mut ViewContext<Editor>,
8410 ) {
8411 this.unfold_ranges(&[range.clone()], false, true, cx);
8412 this.change_selections(auto_scroll, cx, |s| {
8413 if replace_newest {
8414 s.delete(s.newest_anchor().id);
8415 }
8416 s.insert_range(range.clone());
8417 });
8418 }
8419
8420 let buffer = &display_map.buffer_snapshot;
8421 let mut selections = self.selections.all::<usize>(cx);
8422 if let Some(mut select_next_state) = self.select_next_state.take() {
8423 let query = &select_next_state.query;
8424 if !select_next_state.done {
8425 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8426 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8427 let mut next_selected_range = None;
8428
8429 let bytes_after_last_selection =
8430 buffer.bytes_in_range(last_selection.end..buffer.len());
8431 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8432 let query_matches = query
8433 .stream_find_iter(bytes_after_last_selection)
8434 .map(|result| (last_selection.end, result))
8435 .chain(
8436 query
8437 .stream_find_iter(bytes_before_first_selection)
8438 .map(|result| (0, result)),
8439 );
8440
8441 for (start_offset, query_match) in query_matches {
8442 let query_match = query_match.unwrap(); // can only fail due to I/O
8443 let offset_range =
8444 start_offset + query_match.start()..start_offset + query_match.end();
8445 let display_range = offset_range.start.to_display_point(display_map)
8446 ..offset_range.end.to_display_point(display_map);
8447
8448 if !select_next_state.wordwise
8449 || (!movement::is_inside_word(display_map, display_range.start)
8450 && !movement::is_inside_word(display_map, display_range.end))
8451 {
8452 // TODO: This is n^2, because we might check all the selections
8453 if !selections
8454 .iter()
8455 .any(|selection| selection.range().overlaps(&offset_range))
8456 {
8457 next_selected_range = Some(offset_range);
8458 break;
8459 }
8460 }
8461 }
8462
8463 if let Some(next_selected_range) = next_selected_range {
8464 select_next_match_ranges(
8465 self,
8466 next_selected_range,
8467 replace_newest,
8468 autoscroll,
8469 cx,
8470 );
8471 } else {
8472 select_next_state.done = true;
8473 }
8474 }
8475
8476 self.select_next_state = Some(select_next_state);
8477 } else {
8478 let mut only_carets = true;
8479 let mut same_text_selected = true;
8480 let mut selected_text = None;
8481
8482 let mut selections_iter = selections.iter().peekable();
8483 while let Some(selection) = selections_iter.next() {
8484 if selection.start != selection.end {
8485 only_carets = false;
8486 }
8487
8488 if same_text_selected {
8489 if selected_text.is_none() {
8490 selected_text =
8491 Some(buffer.text_for_range(selection.range()).collect::<String>());
8492 }
8493
8494 if let Some(next_selection) = selections_iter.peek() {
8495 if next_selection.range().len() == selection.range().len() {
8496 let next_selected_text = buffer
8497 .text_for_range(next_selection.range())
8498 .collect::<String>();
8499 if Some(next_selected_text) != selected_text {
8500 same_text_selected = false;
8501 selected_text = None;
8502 }
8503 } else {
8504 same_text_selected = false;
8505 selected_text = None;
8506 }
8507 }
8508 }
8509 }
8510
8511 if only_carets {
8512 for selection in &mut selections {
8513 let word_range = movement::surrounding_word(
8514 display_map,
8515 selection.start.to_display_point(display_map),
8516 );
8517 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8518 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8519 selection.goal = SelectionGoal::None;
8520 selection.reversed = false;
8521 select_next_match_ranges(
8522 self,
8523 selection.start..selection.end,
8524 replace_newest,
8525 autoscroll,
8526 cx,
8527 );
8528 }
8529
8530 if selections.len() == 1 {
8531 let selection = selections
8532 .last()
8533 .expect("ensured that there's only one selection");
8534 let query = buffer
8535 .text_for_range(selection.start..selection.end)
8536 .collect::<String>();
8537 let is_empty = query.is_empty();
8538 let select_state = SelectNextState {
8539 query: AhoCorasick::new(&[query])?,
8540 wordwise: true,
8541 done: is_empty,
8542 };
8543 self.select_next_state = Some(select_state);
8544 } else {
8545 self.select_next_state = None;
8546 }
8547 } else if let Some(selected_text) = selected_text {
8548 self.select_next_state = Some(SelectNextState {
8549 query: AhoCorasick::new(&[selected_text])?,
8550 wordwise: false,
8551 done: false,
8552 });
8553 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8554 }
8555 }
8556 Ok(())
8557 }
8558
8559 pub fn select_all_matches(
8560 &mut self,
8561 _action: &SelectAllMatches,
8562 cx: &mut ViewContext<Self>,
8563 ) -> Result<()> {
8564 self.push_to_selection_history();
8565 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8566
8567 self.select_next_match_internal(&display_map, false, None, cx)?;
8568 let Some(select_next_state) = self.select_next_state.as_mut() else {
8569 return Ok(());
8570 };
8571 if select_next_state.done {
8572 return Ok(());
8573 }
8574
8575 let mut new_selections = self.selections.all::<usize>(cx);
8576
8577 let buffer = &display_map.buffer_snapshot;
8578 let query_matches = select_next_state
8579 .query
8580 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8581
8582 for query_match in query_matches {
8583 let query_match = query_match.unwrap(); // can only fail due to I/O
8584 let offset_range = query_match.start()..query_match.end();
8585 let display_range = offset_range.start.to_display_point(&display_map)
8586 ..offset_range.end.to_display_point(&display_map);
8587
8588 if !select_next_state.wordwise
8589 || (!movement::is_inside_word(&display_map, display_range.start)
8590 && !movement::is_inside_word(&display_map, display_range.end))
8591 {
8592 self.selections.change_with(cx, |selections| {
8593 new_selections.push(Selection {
8594 id: selections.new_selection_id(),
8595 start: offset_range.start,
8596 end: offset_range.end,
8597 reversed: false,
8598 goal: SelectionGoal::None,
8599 });
8600 });
8601 }
8602 }
8603
8604 new_selections.sort_by_key(|selection| selection.start);
8605 let mut ix = 0;
8606 while ix + 1 < new_selections.len() {
8607 let current_selection = &new_selections[ix];
8608 let next_selection = &new_selections[ix + 1];
8609 if current_selection.range().overlaps(&next_selection.range()) {
8610 if current_selection.id < next_selection.id {
8611 new_selections.remove(ix + 1);
8612 } else {
8613 new_selections.remove(ix);
8614 }
8615 } else {
8616 ix += 1;
8617 }
8618 }
8619
8620 select_next_state.done = true;
8621 self.unfold_ranges(
8622 &new_selections
8623 .iter()
8624 .map(|selection| selection.range())
8625 .collect::<Vec<_>>(),
8626 false,
8627 false,
8628 cx,
8629 );
8630 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8631 selections.select(new_selections)
8632 });
8633
8634 Ok(())
8635 }
8636
8637 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8638 self.push_to_selection_history();
8639 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8640 self.select_next_match_internal(
8641 &display_map,
8642 action.replace_newest,
8643 Some(Autoscroll::newest()),
8644 cx,
8645 )?;
8646 Ok(())
8647 }
8648
8649 pub fn select_previous(
8650 &mut self,
8651 action: &SelectPrevious,
8652 cx: &mut ViewContext<Self>,
8653 ) -> Result<()> {
8654 self.push_to_selection_history();
8655 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8656 let buffer = &display_map.buffer_snapshot;
8657 let mut selections = self.selections.all::<usize>(cx);
8658 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8659 let query = &select_prev_state.query;
8660 if !select_prev_state.done {
8661 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8662 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8663 let mut next_selected_range = None;
8664 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8665 let bytes_before_last_selection =
8666 buffer.reversed_bytes_in_range(0..last_selection.start);
8667 let bytes_after_first_selection =
8668 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8669 let query_matches = query
8670 .stream_find_iter(bytes_before_last_selection)
8671 .map(|result| (last_selection.start, result))
8672 .chain(
8673 query
8674 .stream_find_iter(bytes_after_first_selection)
8675 .map(|result| (buffer.len(), result)),
8676 );
8677 for (end_offset, query_match) in query_matches {
8678 let query_match = query_match.unwrap(); // can only fail due to I/O
8679 let offset_range =
8680 end_offset - query_match.end()..end_offset - query_match.start();
8681 let display_range = offset_range.start.to_display_point(&display_map)
8682 ..offset_range.end.to_display_point(&display_map);
8683
8684 if !select_prev_state.wordwise
8685 || (!movement::is_inside_word(&display_map, display_range.start)
8686 && !movement::is_inside_word(&display_map, display_range.end))
8687 {
8688 next_selected_range = Some(offset_range);
8689 break;
8690 }
8691 }
8692
8693 if let Some(next_selected_range) = next_selected_range {
8694 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8695 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8696 if action.replace_newest {
8697 s.delete(s.newest_anchor().id);
8698 }
8699 s.insert_range(next_selected_range);
8700 });
8701 } else {
8702 select_prev_state.done = true;
8703 }
8704 }
8705
8706 self.select_prev_state = Some(select_prev_state);
8707 } else {
8708 let mut only_carets = true;
8709 let mut same_text_selected = true;
8710 let mut selected_text = None;
8711
8712 let mut selections_iter = selections.iter().peekable();
8713 while let Some(selection) = selections_iter.next() {
8714 if selection.start != selection.end {
8715 only_carets = false;
8716 }
8717
8718 if same_text_selected {
8719 if selected_text.is_none() {
8720 selected_text =
8721 Some(buffer.text_for_range(selection.range()).collect::<String>());
8722 }
8723
8724 if let Some(next_selection) = selections_iter.peek() {
8725 if next_selection.range().len() == selection.range().len() {
8726 let next_selected_text = buffer
8727 .text_for_range(next_selection.range())
8728 .collect::<String>();
8729 if Some(next_selected_text) != selected_text {
8730 same_text_selected = false;
8731 selected_text = None;
8732 }
8733 } else {
8734 same_text_selected = false;
8735 selected_text = None;
8736 }
8737 }
8738 }
8739 }
8740
8741 if only_carets {
8742 for selection in &mut selections {
8743 let word_range = movement::surrounding_word(
8744 &display_map,
8745 selection.start.to_display_point(&display_map),
8746 );
8747 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8748 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8749 selection.goal = SelectionGoal::None;
8750 selection.reversed = false;
8751 }
8752 if selections.len() == 1 {
8753 let selection = selections
8754 .last()
8755 .expect("ensured that there's only one selection");
8756 let query = buffer
8757 .text_for_range(selection.start..selection.end)
8758 .collect::<String>();
8759 let is_empty = query.is_empty();
8760 let select_state = SelectNextState {
8761 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8762 wordwise: true,
8763 done: is_empty,
8764 };
8765 self.select_prev_state = Some(select_state);
8766 } else {
8767 self.select_prev_state = None;
8768 }
8769
8770 self.unfold_ranges(
8771 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8772 false,
8773 true,
8774 cx,
8775 );
8776 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8777 s.select(selections);
8778 });
8779 } else if let Some(selected_text) = selected_text {
8780 self.select_prev_state = Some(SelectNextState {
8781 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8782 wordwise: false,
8783 done: false,
8784 });
8785 self.select_previous(action, cx)?;
8786 }
8787 }
8788 Ok(())
8789 }
8790
8791 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8792 if self.read_only(cx) {
8793 return;
8794 }
8795 let text_layout_details = &self.text_layout_details(cx);
8796 self.transact(cx, |this, cx| {
8797 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8798 let mut edits = Vec::new();
8799 let mut selection_edit_ranges = Vec::new();
8800 let mut last_toggled_row = None;
8801 let snapshot = this.buffer.read(cx).read(cx);
8802 let empty_str: Arc<str> = Arc::default();
8803 let mut suffixes_inserted = Vec::new();
8804 let ignore_indent = action.ignore_indent;
8805
8806 fn comment_prefix_range(
8807 snapshot: &MultiBufferSnapshot,
8808 row: MultiBufferRow,
8809 comment_prefix: &str,
8810 comment_prefix_whitespace: &str,
8811 ignore_indent: bool,
8812 ) -> Range<Point> {
8813 let indent_size = if ignore_indent {
8814 0
8815 } else {
8816 snapshot.indent_size_for_line(row).len
8817 };
8818
8819 let start = Point::new(row.0, indent_size);
8820
8821 let mut line_bytes = snapshot
8822 .bytes_in_range(start..snapshot.max_point())
8823 .flatten()
8824 .copied();
8825
8826 // If this line currently begins with the line comment prefix, then record
8827 // the range containing the prefix.
8828 if line_bytes
8829 .by_ref()
8830 .take(comment_prefix.len())
8831 .eq(comment_prefix.bytes())
8832 {
8833 // Include any whitespace that matches the comment prefix.
8834 let matching_whitespace_len = line_bytes
8835 .zip(comment_prefix_whitespace.bytes())
8836 .take_while(|(a, b)| a == b)
8837 .count() as u32;
8838 let end = Point::new(
8839 start.row,
8840 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8841 );
8842 start..end
8843 } else {
8844 start..start
8845 }
8846 }
8847
8848 fn comment_suffix_range(
8849 snapshot: &MultiBufferSnapshot,
8850 row: MultiBufferRow,
8851 comment_suffix: &str,
8852 comment_suffix_has_leading_space: bool,
8853 ) -> Range<Point> {
8854 let end = Point::new(row.0, snapshot.line_len(row));
8855 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8856
8857 let mut line_end_bytes = snapshot
8858 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8859 .flatten()
8860 .copied();
8861
8862 let leading_space_len = if suffix_start_column > 0
8863 && line_end_bytes.next() == Some(b' ')
8864 && comment_suffix_has_leading_space
8865 {
8866 1
8867 } else {
8868 0
8869 };
8870
8871 // If this line currently begins with the line comment prefix, then record
8872 // the range containing the prefix.
8873 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8874 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8875 start..end
8876 } else {
8877 end..end
8878 }
8879 }
8880
8881 // TODO: Handle selections that cross excerpts
8882 for selection in &mut selections {
8883 let start_column = snapshot
8884 .indent_size_for_line(MultiBufferRow(selection.start.row))
8885 .len;
8886 let language = if let Some(language) =
8887 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8888 {
8889 language
8890 } else {
8891 continue;
8892 };
8893
8894 selection_edit_ranges.clear();
8895
8896 // If multiple selections contain a given row, avoid processing that
8897 // row more than once.
8898 let mut start_row = MultiBufferRow(selection.start.row);
8899 if last_toggled_row == Some(start_row) {
8900 start_row = start_row.next_row();
8901 }
8902 let end_row =
8903 if selection.end.row > selection.start.row && selection.end.column == 0 {
8904 MultiBufferRow(selection.end.row - 1)
8905 } else {
8906 MultiBufferRow(selection.end.row)
8907 };
8908 last_toggled_row = Some(end_row);
8909
8910 if start_row > end_row {
8911 continue;
8912 }
8913
8914 // If the language has line comments, toggle those.
8915 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8916
8917 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8918 if ignore_indent {
8919 full_comment_prefixes = full_comment_prefixes
8920 .into_iter()
8921 .map(|s| Arc::from(s.trim_end()))
8922 .collect();
8923 }
8924
8925 if !full_comment_prefixes.is_empty() {
8926 let first_prefix = full_comment_prefixes
8927 .first()
8928 .expect("prefixes is non-empty");
8929 let prefix_trimmed_lengths = full_comment_prefixes
8930 .iter()
8931 .map(|p| p.trim_end_matches(' ').len())
8932 .collect::<SmallVec<[usize; 4]>>();
8933
8934 let mut all_selection_lines_are_comments = true;
8935
8936 for row in start_row.0..=end_row.0 {
8937 let row = MultiBufferRow(row);
8938 if start_row < end_row && snapshot.is_line_blank(row) {
8939 continue;
8940 }
8941
8942 let prefix_range = full_comment_prefixes
8943 .iter()
8944 .zip(prefix_trimmed_lengths.iter().copied())
8945 .map(|(prefix, trimmed_prefix_len)| {
8946 comment_prefix_range(
8947 snapshot.deref(),
8948 row,
8949 &prefix[..trimmed_prefix_len],
8950 &prefix[trimmed_prefix_len..],
8951 ignore_indent,
8952 )
8953 })
8954 .max_by_key(|range| range.end.column - range.start.column)
8955 .expect("prefixes is non-empty");
8956
8957 if prefix_range.is_empty() {
8958 all_selection_lines_are_comments = false;
8959 }
8960
8961 selection_edit_ranges.push(prefix_range);
8962 }
8963
8964 if all_selection_lines_are_comments {
8965 edits.extend(
8966 selection_edit_ranges
8967 .iter()
8968 .cloned()
8969 .map(|range| (range, empty_str.clone())),
8970 );
8971 } else {
8972 let min_column = selection_edit_ranges
8973 .iter()
8974 .map(|range| range.start.column)
8975 .min()
8976 .unwrap_or(0);
8977 edits.extend(selection_edit_ranges.iter().map(|range| {
8978 let position = Point::new(range.start.row, min_column);
8979 (position..position, first_prefix.clone())
8980 }));
8981 }
8982 } else if let Some((full_comment_prefix, comment_suffix)) =
8983 language.block_comment_delimiters()
8984 {
8985 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8986 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8987 let prefix_range = comment_prefix_range(
8988 snapshot.deref(),
8989 start_row,
8990 comment_prefix,
8991 comment_prefix_whitespace,
8992 ignore_indent,
8993 );
8994 let suffix_range = comment_suffix_range(
8995 snapshot.deref(),
8996 end_row,
8997 comment_suffix.trim_start_matches(' '),
8998 comment_suffix.starts_with(' '),
8999 );
9000
9001 if prefix_range.is_empty() || suffix_range.is_empty() {
9002 edits.push((
9003 prefix_range.start..prefix_range.start,
9004 full_comment_prefix.clone(),
9005 ));
9006 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9007 suffixes_inserted.push((end_row, comment_suffix.len()));
9008 } else {
9009 edits.push((prefix_range, empty_str.clone()));
9010 edits.push((suffix_range, empty_str.clone()));
9011 }
9012 } else {
9013 continue;
9014 }
9015 }
9016
9017 drop(snapshot);
9018 this.buffer.update(cx, |buffer, cx| {
9019 buffer.edit(edits, None, cx);
9020 });
9021
9022 // Adjust selections so that they end before any comment suffixes that
9023 // were inserted.
9024 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9025 let mut selections = this.selections.all::<Point>(cx);
9026 let snapshot = this.buffer.read(cx).read(cx);
9027 for selection in &mut selections {
9028 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9029 match row.cmp(&MultiBufferRow(selection.end.row)) {
9030 Ordering::Less => {
9031 suffixes_inserted.next();
9032 continue;
9033 }
9034 Ordering::Greater => break,
9035 Ordering::Equal => {
9036 if selection.end.column == snapshot.line_len(row) {
9037 if selection.is_empty() {
9038 selection.start.column -= suffix_len as u32;
9039 }
9040 selection.end.column -= suffix_len as u32;
9041 }
9042 break;
9043 }
9044 }
9045 }
9046 }
9047
9048 drop(snapshot);
9049 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9050
9051 let selections = this.selections.all::<Point>(cx);
9052 let selections_on_single_row = selections.windows(2).all(|selections| {
9053 selections[0].start.row == selections[1].start.row
9054 && selections[0].end.row == selections[1].end.row
9055 && selections[0].start.row == selections[0].end.row
9056 });
9057 let selections_selecting = selections
9058 .iter()
9059 .any(|selection| selection.start != selection.end);
9060 let advance_downwards = action.advance_downwards
9061 && selections_on_single_row
9062 && !selections_selecting
9063 && !matches!(this.mode, EditorMode::SingleLine { .. });
9064
9065 if advance_downwards {
9066 let snapshot = this.buffer.read(cx).snapshot(cx);
9067
9068 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9069 s.move_cursors_with(|display_snapshot, display_point, _| {
9070 let mut point = display_point.to_point(display_snapshot);
9071 point.row += 1;
9072 point = snapshot.clip_point(point, Bias::Left);
9073 let display_point = point.to_display_point(display_snapshot);
9074 let goal = SelectionGoal::HorizontalPosition(
9075 display_snapshot
9076 .x_for_display_point(display_point, text_layout_details)
9077 .into(),
9078 );
9079 (display_point, goal)
9080 })
9081 });
9082 }
9083 });
9084 }
9085
9086 pub fn select_enclosing_symbol(
9087 &mut self,
9088 _: &SelectEnclosingSymbol,
9089 cx: &mut ViewContext<Self>,
9090 ) {
9091 let buffer = self.buffer.read(cx).snapshot(cx);
9092 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9093
9094 fn update_selection(
9095 selection: &Selection<usize>,
9096 buffer_snap: &MultiBufferSnapshot,
9097 ) -> Option<Selection<usize>> {
9098 let cursor = selection.head();
9099 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9100 for symbol in symbols.iter().rev() {
9101 let start = symbol.range.start.to_offset(buffer_snap);
9102 let end = symbol.range.end.to_offset(buffer_snap);
9103 let new_range = start..end;
9104 if start < selection.start || end > selection.end {
9105 return Some(Selection {
9106 id: selection.id,
9107 start: new_range.start,
9108 end: new_range.end,
9109 goal: SelectionGoal::None,
9110 reversed: selection.reversed,
9111 });
9112 }
9113 }
9114 None
9115 }
9116
9117 let mut selected_larger_symbol = false;
9118 let new_selections = old_selections
9119 .iter()
9120 .map(|selection| match update_selection(selection, &buffer) {
9121 Some(new_selection) => {
9122 if new_selection.range() != selection.range() {
9123 selected_larger_symbol = true;
9124 }
9125 new_selection
9126 }
9127 None => selection.clone(),
9128 })
9129 .collect::<Vec<_>>();
9130
9131 if selected_larger_symbol {
9132 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9133 s.select(new_selections);
9134 });
9135 }
9136 }
9137
9138 pub fn select_larger_syntax_node(
9139 &mut self,
9140 _: &SelectLargerSyntaxNode,
9141 cx: &mut ViewContext<Self>,
9142 ) {
9143 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9144 let buffer = self.buffer.read(cx).snapshot(cx);
9145 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9146
9147 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9148 let mut selected_larger_node = false;
9149 let new_selections = old_selections
9150 .iter()
9151 .map(|selection| {
9152 let old_range = selection.start..selection.end;
9153 let mut new_range = old_range.clone();
9154 while let Some(containing_range) =
9155 buffer.range_for_syntax_ancestor(new_range.clone())
9156 {
9157 new_range = containing_range;
9158 if !display_map.intersects_fold(new_range.start)
9159 && !display_map.intersects_fold(new_range.end)
9160 {
9161 break;
9162 }
9163 }
9164
9165 selected_larger_node |= new_range != old_range;
9166 Selection {
9167 id: selection.id,
9168 start: new_range.start,
9169 end: new_range.end,
9170 goal: SelectionGoal::None,
9171 reversed: selection.reversed,
9172 }
9173 })
9174 .collect::<Vec<_>>();
9175
9176 if selected_larger_node {
9177 stack.push(old_selections);
9178 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9179 s.select(new_selections);
9180 });
9181 }
9182 self.select_larger_syntax_node_stack = stack;
9183 }
9184
9185 pub fn select_smaller_syntax_node(
9186 &mut self,
9187 _: &SelectSmallerSyntaxNode,
9188 cx: &mut ViewContext<Self>,
9189 ) {
9190 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9191 if let Some(selections) = stack.pop() {
9192 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9193 s.select(selections.to_vec());
9194 });
9195 }
9196 self.select_larger_syntax_node_stack = stack;
9197 }
9198
9199 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9200 if !EditorSettings::get_global(cx).gutter.runnables {
9201 self.clear_tasks();
9202 return Task::ready(());
9203 }
9204 let project = self.project.as_ref().map(Model::downgrade);
9205 cx.spawn(|this, mut cx| async move {
9206 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9207 let Some(project) = project.and_then(|p| p.upgrade()) else {
9208 return;
9209 };
9210 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9211 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9212 }) else {
9213 return;
9214 };
9215
9216 let hide_runnables = project
9217 .update(&mut cx, |project, cx| {
9218 // Do not display any test indicators in non-dev server remote projects.
9219 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9220 })
9221 .unwrap_or(true);
9222 if hide_runnables {
9223 return;
9224 }
9225 let new_rows =
9226 cx.background_executor()
9227 .spawn({
9228 let snapshot = display_snapshot.clone();
9229 async move {
9230 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9231 }
9232 })
9233 .await;
9234 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9235
9236 this.update(&mut cx, |this, _| {
9237 this.clear_tasks();
9238 for (key, value) in rows {
9239 this.insert_tasks(key, value);
9240 }
9241 })
9242 .ok();
9243 })
9244 }
9245 fn fetch_runnable_ranges(
9246 snapshot: &DisplaySnapshot,
9247 range: Range<Anchor>,
9248 ) -> Vec<language::RunnableRange> {
9249 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9250 }
9251
9252 fn runnable_rows(
9253 project: Model<Project>,
9254 snapshot: DisplaySnapshot,
9255 runnable_ranges: Vec<RunnableRange>,
9256 mut cx: AsyncWindowContext,
9257 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9258 runnable_ranges
9259 .into_iter()
9260 .filter_map(|mut runnable| {
9261 let tasks = cx
9262 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9263 .ok()?;
9264 if tasks.is_empty() {
9265 return None;
9266 }
9267
9268 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9269
9270 let row = snapshot
9271 .buffer_snapshot
9272 .buffer_line_for_row(MultiBufferRow(point.row))?
9273 .1
9274 .start
9275 .row;
9276
9277 let context_range =
9278 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9279 Some((
9280 (runnable.buffer_id, row),
9281 RunnableTasks {
9282 templates: tasks,
9283 offset: MultiBufferOffset(runnable.run_range.start),
9284 context_range,
9285 column: point.column,
9286 extra_variables: runnable.extra_captures,
9287 },
9288 ))
9289 })
9290 .collect()
9291 }
9292
9293 fn templates_with_tags(
9294 project: &Model<Project>,
9295 runnable: &mut Runnable,
9296 cx: &WindowContext<'_>,
9297 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9298 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9299 let (worktree_id, file) = project
9300 .buffer_for_id(runnable.buffer, cx)
9301 .and_then(|buffer| buffer.read(cx).file())
9302 .map(|file| (file.worktree_id(cx), file.clone()))
9303 .unzip();
9304
9305 (
9306 project.task_store().read(cx).task_inventory().cloned(),
9307 worktree_id,
9308 file,
9309 )
9310 });
9311
9312 let tags = mem::take(&mut runnable.tags);
9313 let mut tags: Vec<_> = tags
9314 .into_iter()
9315 .flat_map(|tag| {
9316 let tag = tag.0.clone();
9317 inventory
9318 .as_ref()
9319 .into_iter()
9320 .flat_map(|inventory| {
9321 inventory.read(cx).list_tasks(
9322 file.clone(),
9323 Some(runnable.language.clone()),
9324 worktree_id,
9325 cx,
9326 )
9327 })
9328 .filter(move |(_, template)| {
9329 template.tags.iter().any(|source_tag| source_tag == &tag)
9330 })
9331 })
9332 .sorted_by_key(|(kind, _)| kind.to_owned())
9333 .collect();
9334 if let Some((leading_tag_source, _)) = tags.first() {
9335 // Strongest source wins; if we have worktree tag binding, prefer that to
9336 // global and language bindings;
9337 // if we have a global binding, prefer that to language binding.
9338 let first_mismatch = tags
9339 .iter()
9340 .position(|(tag_source, _)| tag_source != leading_tag_source);
9341 if let Some(index) = first_mismatch {
9342 tags.truncate(index);
9343 }
9344 }
9345
9346 tags
9347 }
9348
9349 pub fn move_to_enclosing_bracket(
9350 &mut self,
9351 _: &MoveToEnclosingBracket,
9352 cx: &mut ViewContext<Self>,
9353 ) {
9354 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9355 s.move_offsets_with(|snapshot, selection| {
9356 let Some(enclosing_bracket_ranges) =
9357 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9358 else {
9359 return;
9360 };
9361
9362 let mut best_length = usize::MAX;
9363 let mut best_inside = false;
9364 let mut best_in_bracket_range = false;
9365 let mut best_destination = None;
9366 for (open, close) in enclosing_bracket_ranges {
9367 let close = close.to_inclusive();
9368 let length = close.end() - open.start;
9369 let inside = selection.start >= open.end && selection.end <= *close.start();
9370 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9371 || close.contains(&selection.head());
9372
9373 // If best is next to a bracket and current isn't, skip
9374 if !in_bracket_range && best_in_bracket_range {
9375 continue;
9376 }
9377
9378 // Prefer smaller lengths unless best is inside and current isn't
9379 if length > best_length && (best_inside || !inside) {
9380 continue;
9381 }
9382
9383 best_length = length;
9384 best_inside = inside;
9385 best_in_bracket_range = in_bracket_range;
9386 best_destination = Some(
9387 if close.contains(&selection.start) && close.contains(&selection.end) {
9388 if inside {
9389 open.end
9390 } else {
9391 open.start
9392 }
9393 } else if inside {
9394 *close.start()
9395 } else {
9396 *close.end()
9397 },
9398 );
9399 }
9400
9401 if let Some(destination) = best_destination {
9402 selection.collapse_to(destination, SelectionGoal::None);
9403 }
9404 })
9405 });
9406 }
9407
9408 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9409 self.end_selection(cx);
9410 self.selection_history.mode = SelectionHistoryMode::Undoing;
9411 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9412 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9413 self.select_next_state = entry.select_next_state;
9414 self.select_prev_state = entry.select_prev_state;
9415 self.add_selections_state = entry.add_selections_state;
9416 self.request_autoscroll(Autoscroll::newest(), cx);
9417 }
9418 self.selection_history.mode = SelectionHistoryMode::Normal;
9419 }
9420
9421 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9422 self.end_selection(cx);
9423 self.selection_history.mode = SelectionHistoryMode::Redoing;
9424 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9425 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9426 self.select_next_state = entry.select_next_state;
9427 self.select_prev_state = entry.select_prev_state;
9428 self.add_selections_state = entry.add_selections_state;
9429 self.request_autoscroll(Autoscroll::newest(), cx);
9430 }
9431 self.selection_history.mode = SelectionHistoryMode::Normal;
9432 }
9433
9434 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9435 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9436 }
9437
9438 pub fn expand_excerpts_down(
9439 &mut self,
9440 action: &ExpandExcerptsDown,
9441 cx: &mut ViewContext<Self>,
9442 ) {
9443 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9444 }
9445
9446 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9447 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9448 }
9449
9450 pub fn expand_excerpts_for_direction(
9451 &mut self,
9452 lines: u32,
9453 direction: ExpandExcerptDirection,
9454 cx: &mut ViewContext<Self>,
9455 ) {
9456 let selections = self.selections.disjoint_anchors();
9457
9458 let lines = if lines == 0 {
9459 EditorSettings::get_global(cx).expand_excerpt_lines
9460 } else {
9461 lines
9462 };
9463
9464 self.buffer.update(cx, |buffer, cx| {
9465 buffer.expand_excerpts(
9466 selections
9467 .iter()
9468 .map(|selection| selection.head().excerpt_id)
9469 .dedup(),
9470 lines,
9471 direction,
9472 cx,
9473 )
9474 })
9475 }
9476
9477 pub fn expand_excerpt(
9478 &mut self,
9479 excerpt: ExcerptId,
9480 direction: ExpandExcerptDirection,
9481 cx: &mut ViewContext<Self>,
9482 ) {
9483 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9484 self.buffer.update(cx, |buffer, cx| {
9485 buffer.expand_excerpts([excerpt], lines, direction, cx)
9486 })
9487 }
9488
9489 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9490 self.go_to_diagnostic_impl(Direction::Next, cx)
9491 }
9492
9493 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9494 self.go_to_diagnostic_impl(Direction::Prev, cx)
9495 }
9496
9497 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9498 let buffer = self.buffer.read(cx).snapshot(cx);
9499 let selection = self.selections.newest::<usize>(cx);
9500
9501 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9502 if direction == Direction::Next {
9503 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9504 let (group_id, jump_to) = popover.activation_info();
9505 if self.activate_diagnostics(group_id, cx) {
9506 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9507 let mut new_selection = s.newest_anchor().clone();
9508 new_selection.collapse_to(jump_to, SelectionGoal::None);
9509 s.select_anchors(vec![new_selection.clone()]);
9510 });
9511 }
9512 return;
9513 }
9514 }
9515
9516 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9517 active_diagnostics
9518 .primary_range
9519 .to_offset(&buffer)
9520 .to_inclusive()
9521 });
9522 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9523 if active_primary_range.contains(&selection.head()) {
9524 *active_primary_range.start()
9525 } else {
9526 selection.head()
9527 }
9528 } else {
9529 selection.head()
9530 };
9531 let snapshot = self.snapshot(cx);
9532 loop {
9533 let diagnostics = if direction == Direction::Prev {
9534 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9535 } else {
9536 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9537 }
9538 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9539 let group = diagnostics
9540 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9541 // be sorted in a stable way
9542 // skip until we are at current active diagnostic, if it exists
9543 .skip_while(|entry| {
9544 (match direction {
9545 Direction::Prev => entry.range.start >= search_start,
9546 Direction::Next => entry.range.start <= search_start,
9547 }) && self
9548 .active_diagnostics
9549 .as_ref()
9550 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9551 })
9552 .find_map(|entry| {
9553 if entry.diagnostic.is_primary
9554 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9555 && !entry.range.is_empty()
9556 // if we match with the active diagnostic, skip it
9557 && Some(entry.diagnostic.group_id)
9558 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9559 {
9560 Some((entry.range, entry.diagnostic.group_id))
9561 } else {
9562 None
9563 }
9564 });
9565
9566 if let Some((primary_range, group_id)) = group {
9567 if self.activate_diagnostics(group_id, cx) {
9568 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9569 s.select(vec![Selection {
9570 id: selection.id,
9571 start: primary_range.start,
9572 end: primary_range.start,
9573 reversed: false,
9574 goal: SelectionGoal::None,
9575 }]);
9576 });
9577 }
9578 break;
9579 } else {
9580 // Cycle around to the start of the buffer, potentially moving back to the start of
9581 // the currently active diagnostic.
9582 active_primary_range.take();
9583 if direction == Direction::Prev {
9584 if search_start == buffer.len() {
9585 break;
9586 } else {
9587 search_start = buffer.len();
9588 }
9589 } else if search_start == 0 {
9590 break;
9591 } else {
9592 search_start = 0;
9593 }
9594 }
9595 }
9596 }
9597
9598 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9599 let snapshot = self
9600 .display_map
9601 .update(cx, |display_map, cx| display_map.snapshot(cx));
9602 let selection = self.selections.newest::<Point>(cx);
9603 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9604 }
9605
9606 fn go_to_hunk_after_position(
9607 &mut self,
9608 snapshot: &DisplaySnapshot,
9609 position: Point,
9610 cx: &mut ViewContext<'_, Editor>,
9611 ) -> Option<MultiBufferDiffHunk> {
9612 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9613 snapshot,
9614 position,
9615 false,
9616 snapshot
9617 .buffer_snapshot
9618 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9619 cx,
9620 ) {
9621 return Some(hunk);
9622 }
9623
9624 let wrapped_point = Point::zero();
9625 self.go_to_next_hunk_in_direction(
9626 snapshot,
9627 wrapped_point,
9628 true,
9629 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9630 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9631 ),
9632 cx,
9633 )
9634 }
9635
9636 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9637 let snapshot = self
9638 .display_map
9639 .update(cx, |display_map, cx| display_map.snapshot(cx));
9640 let selection = self.selections.newest::<Point>(cx);
9641
9642 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9643 }
9644
9645 fn go_to_hunk_before_position(
9646 &mut self,
9647 snapshot: &DisplaySnapshot,
9648 position: Point,
9649 cx: &mut ViewContext<'_, Editor>,
9650 ) -> Option<MultiBufferDiffHunk> {
9651 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9652 snapshot,
9653 position,
9654 false,
9655 snapshot
9656 .buffer_snapshot
9657 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9658 cx,
9659 ) {
9660 return Some(hunk);
9661 }
9662
9663 let wrapped_point = snapshot.buffer_snapshot.max_point();
9664 self.go_to_next_hunk_in_direction(
9665 snapshot,
9666 wrapped_point,
9667 true,
9668 snapshot
9669 .buffer_snapshot
9670 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9671 cx,
9672 )
9673 }
9674
9675 fn go_to_next_hunk_in_direction(
9676 &mut self,
9677 snapshot: &DisplaySnapshot,
9678 initial_point: Point,
9679 is_wrapped: bool,
9680 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9681 cx: &mut ViewContext<Editor>,
9682 ) -> Option<MultiBufferDiffHunk> {
9683 let display_point = initial_point.to_display_point(snapshot);
9684 let mut hunks = hunks
9685 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9686 .filter(|(display_hunk, _)| {
9687 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9688 })
9689 .dedup();
9690
9691 if let Some((display_hunk, hunk)) = hunks.next() {
9692 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9693 let row = display_hunk.start_display_row();
9694 let point = DisplayPoint::new(row, 0);
9695 s.select_display_ranges([point..point]);
9696 });
9697
9698 Some(hunk)
9699 } else {
9700 None
9701 }
9702 }
9703
9704 pub fn go_to_definition(
9705 &mut self,
9706 _: &GoToDefinition,
9707 cx: &mut ViewContext<Self>,
9708 ) -> Task<Result<Navigated>> {
9709 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9710 cx.spawn(|editor, mut cx| async move {
9711 if definition.await? == Navigated::Yes {
9712 return Ok(Navigated::Yes);
9713 }
9714 match editor.update(&mut cx, |editor, cx| {
9715 editor.find_all_references(&FindAllReferences, cx)
9716 })? {
9717 Some(references) => references.await,
9718 None => Ok(Navigated::No),
9719 }
9720 })
9721 }
9722
9723 pub fn go_to_declaration(
9724 &mut self,
9725 _: &GoToDeclaration,
9726 cx: &mut ViewContext<Self>,
9727 ) -> Task<Result<Navigated>> {
9728 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9729 }
9730
9731 pub fn go_to_declaration_split(
9732 &mut self,
9733 _: &GoToDeclaration,
9734 cx: &mut ViewContext<Self>,
9735 ) -> Task<Result<Navigated>> {
9736 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9737 }
9738
9739 pub fn go_to_implementation(
9740 &mut self,
9741 _: &GoToImplementation,
9742 cx: &mut ViewContext<Self>,
9743 ) -> Task<Result<Navigated>> {
9744 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9745 }
9746
9747 pub fn go_to_implementation_split(
9748 &mut self,
9749 _: &GoToImplementationSplit,
9750 cx: &mut ViewContext<Self>,
9751 ) -> Task<Result<Navigated>> {
9752 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9753 }
9754
9755 pub fn go_to_type_definition(
9756 &mut self,
9757 _: &GoToTypeDefinition,
9758 cx: &mut ViewContext<Self>,
9759 ) -> Task<Result<Navigated>> {
9760 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9761 }
9762
9763 pub fn go_to_definition_split(
9764 &mut self,
9765 _: &GoToDefinitionSplit,
9766 cx: &mut ViewContext<Self>,
9767 ) -> Task<Result<Navigated>> {
9768 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9769 }
9770
9771 pub fn go_to_type_definition_split(
9772 &mut self,
9773 _: &GoToTypeDefinitionSplit,
9774 cx: &mut ViewContext<Self>,
9775 ) -> Task<Result<Navigated>> {
9776 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9777 }
9778
9779 fn go_to_definition_of_kind(
9780 &mut self,
9781 kind: GotoDefinitionKind,
9782 split: bool,
9783 cx: &mut ViewContext<Self>,
9784 ) -> Task<Result<Navigated>> {
9785 let Some(provider) = self.semantics_provider.clone() else {
9786 return Task::ready(Ok(Navigated::No));
9787 };
9788 let head = self.selections.newest::<usize>(cx).head();
9789 let buffer = self.buffer.read(cx);
9790 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9791 text_anchor
9792 } else {
9793 return Task::ready(Ok(Navigated::No));
9794 };
9795
9796 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9797 return Task::ready(Ok(Navigated::No));
9798 };
9799
9800 cx.spawn(|editor, mut cx| async move {
9801 let definitions = definitions.await?;
9802 let navigated = editor
9803 .update(&mut cx, |editor, cx| {
9804 editor.navigate_to_hover_links(
9805 Some(kind),
9806 definitions
9807 .into_iter()
9808 .filter(|location| {
9809 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9810 })
9811 .map(HoverLink::Text)
9812 .collect::<Vec<_>>(),
9813 split,
9814 cx,
9815 )
9816 })?
9817 .await?;
9818 anyhow::Ok(navigated)
9819 })
9820 }
9821
9822 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9823 let position = self.selections.newest_anchor().head();
9824 let Some((buffer, buffer_position)) =
9825 self.buffer.read(cx).text_anchor_for_position(position, cx)
9826 else {
9827 return;
9828 };
9829
9830 cx.spawn(|editor, mut cx| async move {
9831 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9832 editor.update(&mut cx, |_, cx| {
9833 cx.open_url(&url);
9834 })
9835 } else {
9836 Ok(())
9837 }
9838 })
9839 .detach();
9840 }
9841
9842 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9843 let Some(workspace) = self.workspace() else {
9844 return;
9845 };
9846
9847 let position = self.selections.newest_anchor().head();
9848
9849 let Some((buffer, buffer_position)) =
9850 self.buffer.read(cx).text_anchor_for_position(position, cx)
9851 else {
9852 return;
9853 };
9854
9855 let project = self.project.clone();
9856
9857 cx.spawn(|_, mut cx| async move {
9858 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9859
9860 if let Some((_, path)) = result {
9861 workspace
9862 .update(&mut cx, |workspace, cx| {
9863 workspace.open_resolved_path(path, cx)
9864 })?
9865 .await?;
9866 }
9867 anyhow::Ok(())
9868 })
9869 .detach();
9870 }
9871
9872 pub(crate) fn navigate_to_hover_links(
9873 &mut self,
9874 kind: Option<GotoDefinitionKind>,
9875 mut definitions: Vec<HoverLink>,
9876 split: bool,
9877 cx: &mut ViewContext<Editor>,
9878 ) -> Task<Result<Navigated>> {
9879 // If there is one definition, just open it directly
9880 if definitions.len() == 1 {
9881 let definition = definitions.pop().unwrap();
9882
9883 enum TargetTaskResult {
9884 Location(Option<Location>),
9885 AlreadyNavigated,
9886 }
9887
9888 let target_task = match definition {
9889 HoverLink::Text(link) => {
9890 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9891 }
9892 HoverLink::InlayHint(lsp_location, server_id) => {
9893 let computation = self.compute_target_location(lsp_location, server_id, cx);
9894 cx.background_executor().spawn(async move {
9895 let location = computation.await?;
9896 Ok(TargetTaskResult::Location(location))
9897 })
9898 }
9899 HoverLink::Url(url) => {
9900 cx.open_url(&url);
9901 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9902 }
9903 HoverLink::File(path) => {
9904 if let Some(workspace) = self.workspace() {
9905 cx.spawn(|_, mut cx| async move {
9906 workspace
9907 .update(&mut cx, |workspace, cx| {
9908 workspace.open_resolved_path(path, cx)
9909 })?
9910 .await
9911 .map(|_| TargetTaskResult::AlreadyNavigated)
9912 })
9913 } else {
9914 Task::ready(Ok(TargetTaskResult::Location(None)))
9915 }
9916 }
9917 };
9918 cx.spawn(|editor, mut cx| async move {
9919 let target = match target_task.await.context("target resolution task")? {
9920 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9921 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9922 TargetTaskResult::Location(Some(target)) => target,
9923 };
9924
9925 editor.update(&mut cx, |editor, cx| {
9926 let Some(workspace) = editor.workspace() else {
9927 return Navigated::No;
9928 };
9929 let pane = workspace.read(cx).active_pane().clone();
9930
9931 let range = target.range.to_offset(target.buffer.read(cx));
9932 let range = editor.range_for_match(&range);
9933
9934 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9935 let buffer = target.buffer.read(cx);
9936 let range = check_multiline_range(buffer, range);
9937 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9938 s.select_ranges([range]);
9939 });
9940 } else {
9941 cx.window_context().defer(move |cx| {
9942 let target_editor: View<Self> =
9943 workspace.update(cx, |workspace, cx| {
9944 let pane = if split {
9945 workspace.adjacent_pane(cx)
9946 } else {
9947 workspace.active_pane().clone()
9948 };
9949
9950 workspace.open_project_item(
9951 pane,
9952 target.buffer.clone(),
9953 true,
9954 true,
9955 cx,
9956 )
9957 });
9958 target_editor.update(cx, |target_editor, cx| {
9959 // When selecting a definition in a different buffer, disable the nav history
9960 // to avoid creating a history entry at the previous cursor location.
9961 pane.update(cx, |pane, _| pane.disable_history());
9962 let buffer = target.buffer.read(cx);
9963 let range = check_multiline_range(buffer, range);
9964 target_editor.change_selections(
9965 Some(Autoscroll::focused()),
9966 cx,
9967 |s| {
9968 s.select_ranges([range]);
9969 },
9970 );
9971 pane.update(cx, |pane, _| pane.enable_history());
9972 });
9973 });
9974 }
9975 Navigated::Yes
9976 })
9977 })
9978 } else if !definitions.is_empty() {
9979 cx.spawn(|editor, mut cx| async move {
9980 let (title, location_tasks, workspace) = editor
9981 .update(&mut cx, |editor, cx| {
9982 let tab_kind = match kind {
9983 Some(GotoDefinitionKind::Implementation) => "Implementations",
9984 _ => "Definitions",
9985 };
9986 let title = definitions
9987 .iter()
9988 .find_map(|definition| match definition {
9989 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9990 let buffer = origin.buffer.read(cx);
9991 format!(
9992 "{} for {}",
9993 tab_kind,
9994 buffer
9995 .text_for_range(origin.range.clone())
9996 .collect::<String>()
9997 )
9998 }),
9999 HoverLink::InlayHint(_, _) => None,
10000 HoverLink::Url(_) => None,
10001 HoverLink::File(_) => None,
10002 })
10003 .unwrap_or(tab_kind.to_string());
10004 let location_tasks = definitions
10005 .into_iter()
10006 .map(|definition| match definition {
10007 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10008 HoverLink::InlayHint(lsp_location, server_id) => {
10009 editor.compute_target_location(lsp_location, server_id, cx)
10010 }
10011 HoverLink::Url(_) => Task::ready(Ok(None)),
10012 HoverLink::File(_) => Task::ready(Ok(None)),
10013 })
10014 .collect::<Vec<_>>();
10015 (title, location_tasks, editor.workspace().clone())
10016 })
10017 .context("location tasks preparation")?;
10018
10019 let locations = future::join_all(location_tasks)
10020 .await
10021 .into_iter()
10022 .filter_map(|location| location.transpose())
10023 .collect::<Result<_>>()
10024 .context("location tasks")?;
10025
10026 let Some(workspace) = workspace else {
10027 return Ok(Navigated::No);
10028 };
10029 let opened = workspace
10030 .update(&mut cx, |workspace, cx| {
10031 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10032 })
10033 .ok();
10034
10035 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10036 })
10037 } else {
10038 Task::ready(Ok(Navigated::No))
10039 }
10040 }
10041
10042 fn compute_target_location(
10043 &self,
10044 lsp_location: lsp::Location,
10045 server_id: LanguageServerId,
10046 cx: &mut ViewContext<Self>,
10047 ) -> Task<anyhow::Result<Option<Location>>> {
10048 let Some(project) = self.project.clone() else {
10049 return Task::Ready(Some(Ok(None)));
10050 };
10051
10052 cx.spawn(move |editor, mut cx| async move {
10053 let location_task = editor.update(&mut cx, |_, cx| {
10054 project.update(cx, |project, cx| {
10055 let language_server_name = project
10056 .language_server_statuses(cx)
10057 .find(|(id, _)| server_id == *id)
10058 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10059 language_server_name.map(|language_server_name| {
10060 project.open_local_buffer_via_lsp(
10061 lsp_location.uri.clone(),
10062 server_id,
10063 language_server_name,
10064 cx,
10065 )
10066 })
10067 })
10068 })?;
10069 let location = match location_task {
10070 Some(task) => Some({
10071 let target_buffer_handle = task.await.context("open local buffer")?;
10072 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10073 let target_start = target_buffer
10074 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10075 let target_end = target_buffer
10076 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10077 target_buffer.anchor_after(target_start)
10078 ..target_buffer.anchor_before(target_end)
10079 })?;
10080 Location {
10081 buffer: target_buffer_handle,
10082 range,
10083 }
10084 }),
10085 None => None,
10086 };
10087 Ok(location)
10088 })
10089 }
10090
10091 pub fn find_all_references(
10092 &mut self,
10093 _: &FindAllReferences,
10094 cx: &mut ViewContext<Self>,
10095 ) -> Option<Task<Result<Navigated>>> {
10096 let selection = self.selections.newest::<usize>(cx);
10097 let multi_buffer = self.buffer.read(cx);
10098 let head = selection.head();
10099
10100 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10101 let head_anchor = multi_buffer_snapshot.anchor_at(
10102 head,
10103 if head < selection.tail() {
10104 Bias::Right
10105 } else {
10106 Bias::Left
10107 },
10108 );
10109
10110 match self
10111 .find_all_references_task_sources
10112 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10113 {
10114 Ok(_) => {
10115 log::info!(
10116 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10117 );
10118 return None;
10119 }
10120 Err(i) => {
10121 self.find_all_references_task_sources.insert(i, head_anchor);
10122 }
10123 }
10124
10125 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10126 let workspace = self.workspace()?;
10127 let project = workspace.read(cx).project().clone();
10128 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10129 Some(cx.spawn(|editor, mut cx| async move {
10130 let _cleanup = defer({
10131 let mut cx = cx.clone();
10132 move || {
10133 let _ = editor.update(&mut cx, |editor, _| {
10134 if let Ok(i) =
10135 editor
10136 .find_all_references_task_sources
10137 .binary_search_by(|anchor| {
10138 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10139 })
10140 {
10141 editor.find_all_references_task_sources.remove(i);
10142 }
10143 });
10144 }
10145 });
10146
10147 let locations = references.await?;
10148 if locations.is_empty() {
10149 return anyhow::Ok(Navigated::No);
10150 }
10151
10152 workspace.update(&mut cx, |workspace, cx| {
10153 let title = locations
10154 .first()
10155 .as_ref()
10156 .map(|location| {
10157 let buffer = location.buffer.read(cx);
10158 format!(
10159 "References to `{}`",
10160 buffer
10161 .text_for_range(location.range.clone())
10162 .collect::<String>()
10163 )
10164 })
10165 .unwrap();
10166 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10167 Navigated::Yes
10168 })
10169 }))
10170 }
10171
10172 /// Opens a multibuffer with the given project locations in it
10173 pub fn open_locations_in_multibuffer(
10174 workspace: &mut Workspace,
10175 mut locations: Vec<Location>,
10176 title: String,
10177 split: bool,
10178 cx: &mut ViewContext<Workspace>,
10179 ) {
10180 // If there are multiple definitions, open them in a multibuffer
10181 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10182 let mut locations = locations.into_iter().peekable();
10183 let mut ranges_to_highlight = Vec::new();
10184 let capability = workspace.project().read(cx).capability();
10185
10186 let excerpt_buffer = cx.new_model(|cx| {
10187 let mut multibuffer = MultiBuffer::new(capability);
10188 while let Some(location) = locations.next() {
10189 let buffer = location.buffer.read(cx);
10190 let mut ranges_for_buffer = Vec::new();
10191 let range = location.range.to_offset(buffer);
10192 ranges_for_buffer.push(range.clone());
10193
10194 while let Some(next_location) = locations.peek() {
10195 if next_location.buffer == location.buffer {
10196 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10197 locations.next();
10198 } else {
10199 break;
10200 }
10201 }
10202
10203 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10204 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10205 location.buffer.clone(),
10206 ranges_for_buffer,
10207 DEFAULT_MULTIBUFFER_CONTEXT,
10208 cx,
10209 ))
10210 }
10211
10212 multibuffer.with_title(title)
10213 });
10214
10215 let editor = cx.new_view(|cx| {
10216 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10217 });
10218 editor.update(cx, |editor, cx| {
10219 if let Some(first_range) = ranges_to_highlight.first() {
10220 editor.change_selections(None, cx, |selections| {
10221 selections.clear_disjoint();
10222 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10223 });
10224 }
10225 editor.highlight_background::<Self>(
10226 &ranges_to_highlight,
10227 |theme| theme.editor_highlighted_line_background,
10228 cx,
10229 );
10230 });
10231
10232 let item = Box::new(editor);
10233 let item_id = item.item_id();
10234
10235 if split {
10236 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10237 } else {
10238 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10239 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10240 pane.close_current_preview_item(cx)
10241 } else {
10242 None
10243 }
10244 });
10245 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10246 }
10247 workspace.active_pane().update(cx, |pane, cx| {
10248 pane.set_preview_item_id(Some(item_id), cx);
10249 });
10250 }
10251
10252 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10253 use language::ToOffset as _;
10254
10255 let provider = self.semantics_provider.clone()?;
10256 let selection = self.selections.newest_anchor().clone();
10257 let (cursor_buffer, cursor_buffer_position) = self
10258 .buffer
10259 .read(cx)
10260 .text_anchor_for_position(selection.head(), cx)?;
10261 let (tail_buffer, cursor_buffer_position_end) = self
10262 .buffer
10263 .read(cx)
10264 .text_anchor_for_position(selection.tail(), cx)?;
10265 if tail_buffer != cursor_buffer {
10266 return None;
10267 }
10268
10269 let snapshot = cursor_buffer.read(cx).snapshot();
10270 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10271 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10272 let prepare_rename = provider
10273 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10274 .unwrap_or_else(|| Task::ready(Ok(None)));
10275 drop(snapshot);
10276
10277 Some(cx.spawn(|this, mut cx| async move {
10278 let rename_range = if let Some(range) = prepare_rename.await? {
10279 Some(range)
10280 } else {
10281 this.update(&mut cx, |this, cx| {
10282 let buffer = this.buffer.read(cx).snapshot(cx);
10283 let mut buffer_highlights = this
10284 .document_highlights_for_position(selection.head(), &buffer)
10285 .filter(|highlight| {
10286 highlight.start.excerpt_id == selection.head().excerpt_id
10287 && highlight.end.excerpt_id == selection.head().excerpt_id
10288 });
10289 buffer_highlights
10290 .next()
10291 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10292 })?
10293 };
10294 if let Some(rename_range) = rename_range {
10295 this.update(&mut cx, |this, cx| {
10296 let snapshot = cursor_buffer.read(cx).snapshot();
10297 let rename_buffer_range = rename_range.to_offset(&snapshot);
10298 let cursor_offset_in_rename_range =
10299 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10300 let cursor_offset_in_rename_range_end =
10301 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10302
10303 this.take_rename(false, cx);
10304 let buffer = this.buffer.read(cx).read(cx);
10305 let cursor_offset = selection.head().to_offset(&buffer);
10306 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10307 let rename_end = rename_start + rename_buffer_range.len();
10308 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10309 let mut old_highlight_id = None;
10310 let old_name: Arc<str> = buffer
10311 .chunks(rename_start..rename_end, true)
10312 .map(|chunk| {
10313 if old_highlight_id.is_none() {
10314 old_highlight_id = chunk.syntax_highlight_id;
10315 }
10316 chunk.text
10317 })
10318 .collect::<String>()
10319 .into();
10320
10321 drop(buffer);
10322
10323 // Position the selection in the rename editor so that it matches the current selection.
10324 this.show_local_selections = false;
10325 let rename_editor = cx.new_view(|cx| {
10326 let mut editor = Editor::single_line(cx);
10327 editor.buffer.update(cx, |buffer, cx| {
10328 buffer.edit([(0..0, old_name.clone())], None, cx)
10329 });
10330 let rename_selection_range = match cursor_offset_in_rename_range
10331 .cmp(&cursor_offset_in_rename_range_end)
10332 {
10333 Ordering::Equal => {
10334 editor.select_all(&SelectAll, cx);
10335 return editor;
10336 }
10337 Ordering::Less => {
10338 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10339 }
10340 Ordering::Greater => {
10341 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10342 }
10343 };
10344 if rename_selection_range.end > old_name.len() {
10345 editor.select_all(&SelectAll, cx);
10346 } else {
10347 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10348 s.select_ranges([rename_selection_range]);
10349 });
10350 }
10351 editor
10352 });
10353 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10354 if e == &EditorEvent::Focused {
10355 cx.emit(EditorEvent::FocusedIn)
10356 }
10357 })
10358 .detach();
10359
10360 let write_highlights =
10361 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10362 let read_highlights =
10363 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10364 let ranges = write_highlights
10365 .iter()
10366 .flat_map(|(_, ranges)| ranges.iter())
10367 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10368 .cloned()
10369 .collect();
10370
10371 this.highlight_text::<Rename>(
10372 ranges,
10373 HighlightStyle {
10374 fade_out: Some(0.6),
10375 ..Default::default()
10376 },
10377 cx,
10378 );
10379 let rename_focus_handle = rename_editor.focus_handle(cx);
10380 cx.focus(&rename_focus_handle);
10381 let block_id = this.insert_blocks(
10382 [BlockProperties {
10383 style: BlockStyle::Flex,
10384 placement: BlockPlacement::Below(range.start),
10385 height: 1,
10386 render: Box::new({
10387 let rename_editor = rename_editor.clone();
10388 move |cx: &mut BlockContext| {
10389 let mut text_style = cx.editor_style.text.clone();
10390 if let Some(highlight_style) = old_highlight_id
10391 .and_then(|h| h.style(&cx.editor_style.syntax))
10392 {
10393 text_style = text_style.highlight(highlight_style);
10394 }
10395 div()
10396 .pl(cx.anchor_x)
10397 .child(EditorElement::new(
10398 &rename_editor,
10399 EditorStyle {
10400 background: cx.theme().system().transparent,
10401 local_player: cx.editor_style.local_player,
10402 text: text_style,
10403 scrollbar_width: cx.editor_style.scrollbar_width,
10404 syntax: cx.editor_style.syntax.clone(),
10405 status: cx.editor_style.status.clone(),
10406 inlay_hints_style: HighlightStyle {
10407 font_weight: Some(FontWeight::BOLD),
10408 ..make_inlay_hints_style(cx)
10409 },
10410 suggestions_style: HighlightStyle {
10411 color: Some(cx.theme().status().predictive),
10412 ..HighlightStyle::default()
10413 },
10414 ..EditorStyle::default()
10415 },
10416 ))
10417 .into_any_element()
10418 }
10419 }),
10420 priority: 0,
10421 }],
10422 Some(Autoscroll::fit()),
10423 cx,
10424 )[0];
10425 this.pending_rename = Some(RenameState {
10426 range,
10427 old_name,
10428 editor: rename_editor,
10429 block_id,
10430 });
10431 })?;
10432 }
10433
10434 Ok(())
10435 }))
10436 }
10437
10438 pub fn confirm_rename(
10439 &mut self,
10440 _: &ConfirmRename,
10441 cx: &mut ViewContext<Self>,
10442 ) -> Option<Task<Result<()>>> {
10443 let rename = self.take_rename(false, cx)?;
10444 let workspace = self.workspace()?.downgrade();
10445 let (buffer, start) = self
10446 .buffer
10447 .read(cx)
10448 .text_anchor_for_position(rename.range.start, cx)?;
10449 let (end_buffer, _) = self
10450 .buffer
10451 .read(cx)
10452 .text_anchor_for_position(rename.range.end, cx)?;
10453 if buffer != end_buffer {
10454 return None;
10455 }
10456
10457 let old_name = rename.old_name;
10458 let new_name = rename.editor.read(cx).text(cx);
10459
10460 let rename = self.semantics_provider.as_ref()?.perform_rename(
10461 &buffer,
10462 start,
10463 new_name.clone(),
10464 cx,
10465 )?;
10466
10467 Some(cx.spawn(|editor, mut cx| async move {
10468 let project_transaction = rename.await?;
10469 Self::open_project_transaction(
10470 &editor,
10471 workspace,
10472 project_transaction,
10473 format!("Rename: {} → {}", old_name, new_name),
10474 cx.clone(),
10475 )
10476 .await?;
10477
10478 editor.update(&mut cx, |editor, cx| {
10479 editor.refresh_document_highlights(cx);
10480 })?;
10481 Ok(())
10482 }))
10483 }
10484
10485 fn take_rename(
10486 &mut self,
10487 moving_cursor: bool,
10488 cx: &mut ViewContext<Self>,
10489 ) -> Option<RenameState> {
10490 let rename = self.pending_rename.take()?;
10491 if rename.editor.focus_handle(cx).is_focused(cx) {
10492 cx.focus(&self.focus_handle);
10493 }
10494
10495 self.remove_blocks(
10496 [rename.block_id].into_iter().collect(),
10497 Some(Autoscroll::fit()),
10498 cx,
10499 );
10500 self.clear_highlights::<Rename>(cx);
10501 self.show_local_selections = true;
10502
10503 if moving_cursor {
10504 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10505 editor.selections.newest::<usize>(cx).head()
10506 });
10507
10508 // Update the selection to match the position of the selection inside
10509 // the rename editor.
10510 let snapshot = self.buffer.read(cx).read(cx);
10511 let rename_range = rename.range.to_offset(&snapshot);
10512 let cursor_in_editor = snapshot
10513 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10514 .min(rename_range.end);
10515 drop(snapshot);
10516
10517 self.change_selections(None, cx, |s| {
10518 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10519 });
10520 } else {
10521 self.refresh_document_highlights(cx);
10522 }
10523
10524 Some(rename)
10525 }
10526
10527 pub fn pending_rename(&self) -> Option<&RenameState> {
10528 self.pending_rename.as_ref()
10529 }
10530
10531 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10532 let project = match &self.project {
10533 Some(project) => project.clone(),
10534 None => return None,
10535 };
10536
10537 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10538 }
10539
10540 fn format_selections(
10541 &mut self,
10542 _: &FormatSelections,
10543 cx: &mut ViewContext<Self>,
10544 ) -> Option<Task<Result<()>>> {
10545 let project = match &self.project {
10546 Some(project) => project.clone(),
10547 None => return None,
10548 };
10549
10550 let selections = self
10551 .selections
10552 .all_adjusted(cx)
10553 .into_iter()
10554 .filter(|s| !s.is_empty())
10555 .collect_vec();
10556
10557 Some(self.perform_format(
10558 project,
10559 FormatTrigger::Manual,
10560 FormatTarget::Ranges(selections),
10561 cx,
10562 ))
10563 }
10564
10565 fn perform_format(
10566 &mut self,
10567 project: Model<Project>,
10568 trigger: FormatTrigger,
10569 target: FormatTarget,
10570 cx: &mut ViewContext<Self>,
10571 ) -> Task<Result<()>> {
10572 let buffer = self.buffer().clone();
10573 let mut buffers = buffer.read(cx).all_buffers();
10574 if trigger == FormatTrigger::Save {
10575 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10576 }
10577
10578 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10579 let format = project.update(cx, |project, cx| {
10580 project.format(buffers, true, trigger, target, cx)
10581 });
10582
10583 cx.spawn(|_, mut cx| async move {
10584 let transaction = futures::select_biased! {
10585 () = timeout => {
10586 log::warn!("timed out waiting for formatting");
10587 None
10588 }
10589 transaction = format.log_err().fuse() => transaction,
10590 };
10591
10592 buffer
10593 .update(&mut cx, |buffer, cx| {
10594 if let Some(transaction) = transaction {
10595 if !buffer.is_singleton() {
10596 buffer.push_transaction(&transaction.0, cx);
10597 }
10598 }
10599
10600 cx.notify();
10601 })
10602 .ok();
10603
10604 Ok(())
10605 })
10606 }
10607
10608 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10609 if let Some(project) = self.project.clone() {
10610 self.buffer.update(cx, |multi_buffer, cx| {
10611 project.update(cx, |project, cx| {
10612 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10613 });
10614 })
10615 }
10616 }
10617
10618 fn cancel_language_server_work(
10619 &mut self,
10620 _: &actions::CancelLanguageServerWork,
10621 cx: &mut ViewContext<Self>,
10622 ) {
10623 if let Some(project) = self.project.clone() {
10624 self.buffer.update(cx, |multi_buffer, cx| {
10625 project.update(cx, |project, cx| {
10626 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10627 });
10628 })
10629 }
10630 }
10631
10632 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10633 cx.show_character_palette();
10634 }
10635
10636 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10637 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10638 let buffer = self.buffer.read(cx).snapshot(cx);
10639 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10640 let is_valid = buffer
10641 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10642 .any(|entry| {
10643 entry.diagnostic.is_primary
10644 && !entry.range.is_empty()
10645 && entry.range.start == primary_range_start
10646 && entry.diagnostic.message == active_diagnostics.primary_message
10647 });
10648
10649 if is_valid != active_diagnostics.is_valid {
10650 active_diagnostics.is_valid = is_valid;
10651 let mut new_styles = HashMap::default();
10652 for (block_id, diagnostic) in &active_diagnostics.blocks {
10653 new_styles.insert(
10654 *block_id,
10655 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10656 );
10657 }
10658 self.display_map.update(cx, |display_map, _cx| {
10659 display_map.replace_blocks(new_styles)
10660 });
10661 }
10662 }
10663 }
10664
10665 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10666 self.dismiss_diagnostics(cx);
10667 let snapshot = self.snapshot(cx);
10668 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10669 let buffer = self.buffer.read(cx).snapshot(cx);
10670
10671 let mut primary_range = None;
10672 let mut primary_message = None;
10673 let mut group_end = Point::zero();
10674 let diagnostic_group = buffer
10675 .diagnostic_group::<MultiBufferPoint>(group_id)
10676 .filter_map(|entry| {
10677 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10678 && (entry.range.start.row == entry.range.end.row
10679 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10680 {
10681 return None;
10682 }
10683 if entry.range.end > group_end {
10684 group_end = entry.range.end;
10685 }
10686 if entry.diagnostic.is_primary {
10687 primary_range = Some(entry.range.clone());
10688 primary_message = Some(entry.diagnostic.message.clone());
10689 }
10690 Some(entry)
10691 })
10692 .collect::<Vec<_>>();
10693 let primary_range = primary_range?;
10694 let primary_message = primary_message?;
10695 let primary_range =
10696 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10697
10698 let blocks = display_map
10699 .insert_blocks(
10700 diagnostic_group.iter().map(|entry| {
10701 let diagnostic = entry.diagnostic.clone();
10702 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10703 BlockProperties {
10704 style: BlockStyle::Fixed,
10705 placement: BlockPlacement::Below(
10706 buffer.anchor_after(entry.range.start),
10707 ),
10708 height: message_height,
10709 render: diagnostic_block_renderer(diagnostic, None, true, true),
10710 priority: 0,
10711 }
10712 }),
10713 cx,
10714 )
10715 .into_iter()
10716 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10717 .collect();
10718
10719 Some(ActiveDiagnosticGroup {
10720 primary_range,
10721 primary_message,
10722 group_id,
10723 blocks,
10724 is_valid: true,
10725 })
10726 });
10727 self.active_diagnostics.is_some()
10728 }
10729
10730 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10731 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10732 self.display_map.update(cx, |display_map, cx| {
10733 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10734 });
10735 cx.notify();
10736 }
10737 }
10738
10739 pub fn set_selections_from_remote(
10740 &mut self,
10741 selections: Vec<Selection<Anchor>>,
10742 pending_selection: Option<Selection<Anchor>>,
10743 cx: &mut ViewContext<Self>,
10744 ) {
10745 let old_cursor_position = self.selections.newest_anchor().head();
10746 self.selections.change_with(cx, |s| {
10747 s.select_anchors(selections);
10748 if let Some(pending_selection) = pending_selection {
10749 s.set_pending(pending_selection, SelectMode::Character);
10750 } else {
10751 s.clear_pending();
10752 }
10753 });
10754 self.selections_did_change(false, &old_cursor_position, true, cx);
10755 }
10756
10757 fn push_to_selection_history(&mut self) {
10758 self.selection_history.push(SelectionHistoryEntry {
10759 selections: self.selections.disjoint_anchors(),
10760 select_next_state: self.select_next_state.clone(),
10761 select_prev_state: self.select_prev_state.clone(),
10762 add_selections_state: self.add_selections_state.clone(),
10763 });
10764 }
10765
10766 pub fn transact(
10767 &mut self,
10768 cx: &mut ViewContext<Self>,
10769 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10770 ) -> Option<TransactionId> {
10771 self.start_transaction_at(Instant::now(), cx);
10772 update(self, cx);
10773 self.end_transaction_at(Instant::now(), cx)
10774 }
10775
10776 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10777 self.end_selection(cx);
10778 if let Some(tx_id) = self
10779 .buffer
10780 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10781 {
10782 self.selection_history
10783 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10784 cx.emit(EditorEvent::TransactionBegun {
10785 transaction_id: tx_id,
10786 })
10787 }
10788 }
10789
10790 fn end_transaction_at(
10791 &mut self,
10792 now: Instant,
10793 cx: &mut ViewContext<Self>,
10794 ) -> Option<TransactionId> {
10795 if let Some(transaction_id) = self
10796 .buffer
10797 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10798 {
10799 if let Some((_, end_selections)) =
10800 self.selection_history.transaction_mut(transaction_id)
10801 {
10802 *end_selections = Some(self.selections.disjoint_anchors());
10803 } else {
10804 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10805 }
10806
10807 cx.emit(EditorEvent::Edited { transaction_id });
10808 Some(transaction_id)
10809 } else {
10810 None
10811 }
10812 }
10813
10814 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10815 let selection = self.selections.newest::<Point>(cx);
10816
10817 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10818 let range = if selection.is_empty() {
10819 let point = selection.head().to_display_point(&display_map);
10820 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10821 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10822 .to_point(&display_map);
10823 start..end
10824 } else {
10825 selection.range()
10826 };
10827 if display_map.folds_in_range(range).next().is_some() {
10828 self.unfold_lines(&Default::default(), cx)
10829 } else {
10830 self.fold(&Default::default(), cx)
10831 }
10832 }
10833
10834 pub fn toggle_fold_recursive(
10835 &mut self,
10836 _: &actions::ToggleFoldRecursive,
10837 cx: &mut ViewContext<Self>,
10838 ) {
10839 let selection = self.selections.newest::<Point>(cx);
10840
10841 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10842 let range = if selection.is_empty() {
10843 let point = selection.head().to_display_point(&display_map);
10844 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10845 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10846 .to_point(&display_map);
10847 start..end
10848 } else {
10849 selection.range()
10850 };
10851 if display_map.folds_in_range(range).next().is_some() {
10852 self.unfold_recursive(&Default::default(), cx)
10853 } else {
10854 self.fold_recursive(&Default::default(), cx)
10855 }
10856 }
10857
10858 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10859 let mut fold_ranges = Vec::new();
10860 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10861 let selections = self.selections.all_adjusted(cx);
10862
10863 for selection in selections {
10864 let range = selection.range().sorted();
10865 let buffer_start_row = range.start.row;
10866
10867 if range.start.row != range.end.row {
10868 let mut found = false;
10869 let mut row = range.start.row;
10870 while row <= range.end.row {
10871 if let Some((foldable_range, fold_text)) =
10872 { display_map.foldable_range(MultiBufferRow(row)) }
10873 {
10874 found = true;
10875 row = foldable_range.end.row + 1;
10876 fold_ranges.push((foldable_range, fold_text));
10877 } else {
10878 row += 1
10879 }
10880 }
10881 if found {
10882 continue;
10883 }
10884 }
10885
10886 for row in (0..=range.start.row).rev() {
10887 if let Some((foldable_range, fold_text)) =
10888 display_map.foldable_range(MultiBufferRow(row))
10889 {
10890 if foldable_range.end.row >= buffer_start_row {
10891 fold_ranges.push((foldable_range, fold_text));
10892 if row <= range.start.row {
10893 break;
10894 }
10895 }
10896 }
10897 }
10898 }
10899
10900 self.fold_ranges(fold_ranges, true, cx);
10901 }
10902
10903 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10904 let fold_at_level = fold_at.level;
10905 let snapshot = self.buffer.read(cx).snapshot(cx);
10906 let mut fold_ranges = Vec::new();
10907 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10908
10909 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10910 while start_row < end_row {
10911 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10912 Some(foldable_range) => {
10913 let nested_start_row = foldable_range.0.start.row + 1;
10914 let nested_end_row = foldable_range.0.end.row;
10915
10916 if current_level < fold_at_level {
10917 stack.push((nested_start_row, nested_end_row, current_level + 1));
10918 } else if current_level == fold_at_level {
10919 fold_ranges.push(foldable_range);
10920 }
10921
10922 start_row = nested_end_row + 1;
10923 }
10924 None => start_row += 1,
10925 }
10926 }
10927 }
10928
10929 self.fold_ranges(fold_ranges, true, cx);
10930 }
10931
10932 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10933 let mut fold_ranges = Vec::new();
10934 let snapshot = self.buffer.read(cx).snapshot(cx);
10935
10936 for row in 0..snapshot.max_buffer_row().0 {
10937 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10938 fold_ranges.push(foldable_range);
10939 }
10940 }
10941
10942 self.fold_ranges(fold_ranges, true, cx);
10943 }
10944
10945 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10946 let mut fold_ranges = Vec::new();
10947 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10948 let selections = self.selections.all_adjusted(cx);
10949
10950 for selection in selections {
10951 let range = selection.range().sorted();
10952 let buffer_start_row = range.start.row;
10953
10954 if range.start.row != range.end.row {
10955 let mut found = false;
10956 for row in range.start.row..=range.end.row {
10957 if let Some((foldable_range, fold_text)) =
10958 { display_map.foldable_range(MultiBufferRow(row)) }
10959 {
10960 found = true;
10961 fold_ranges.push((foldable_range, fold_text));
10962 }
10963 }
10964 if found {
10965 continue;
10966 }
10967 }
10968
10969 for row in (0..=range.start.row).rev() {
10970 if let Some((foldable_range, fold_text)) =
10971 display_map.foldable_range(MultiBufferRow(row))
10972 {
10973 if foldable_range.end.row >= buffer_start_row {
10974 fold_ranges.push((foldable_range, fold_text));
10975 } else {
10976 break;
10977 }
10978 }
10979 }
10980 }
10981
10982 self.fold_ranges(fold_ranges, true, cx);
10983 }
10984
10985 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10986 let buffer_row = fold_at.buffer_row;
10987 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10988
10989 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10990 let autoscroll = self
10991 .selections
10992 .all::<Point>(cx)
10993 .iter()
10994 .any(|selection| fold_range.overlaps(&selection.range()));
10995
10996 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10997 }
10998 }
10999
11000 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11001 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11002 let buffer = &display_map.buffer_snapshot;
11003 let selections = self.selections.all::<Point>(cx);
11004 let ranges = selections
11005 .iter()
11006 .map(|s| {
11007 let range = s.display_range(&display_map).sorted();
11008 let mut start = range.start.to_point(&display_map);
11009 let mut end = range.end.to_point(&display_map);
11010 start.column = 0;
11011 end.column = buffer.line_len(MultiBufferRow(end.row));
11012 start..end
11013 })
11014 .collect::<Vec<_>>();
11015
11016 self.unfold_ranges(&ranges, true, true, cx);
11017 }
11018
11019 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11020 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11021 let selections = self.selections.all::<Point>(cx);
11022 let ranges = selections
11023 .iter()
11024 .map(|s| {
11025 let mut range = s.display_range(&display_map).sorted();
11026 *range.start.column_mut() = 0;
11027 *range.end.column_mut() = display_map.line_len(range.end.row());
11028 let start = range.start.to_point(&display_map);
11029 let end = range.end.to_point(&display_map);
11030 start..end
11031 })
11032 .collect::<Vec<_>>();
11033
11034 self.unfold_ranges(&ranges, true, true, cx);
11035 }
11036
11037 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11038 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11039
11040 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11041 ..Point::new(
11042 unfold_at.buffer_row.0,
11043 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11044 );
11045
11046 let autoscroll = self
11047 .selections
11048 .all::<Point>(cx)
11049 .iter()
11050 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11051
11052 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11053 }
11054
11055 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11056 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11057 self.unfold_ranges(
11058 &[Point::zero()..display_map.max_point().to_point(&display_map)],
11059 true,
11060 true,
11061 cx,
11062 );
11063 }
11064
11065 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11066 let selections = self.selections.all::<Point>(cx);
11067 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11068 let line_mode = self.selections.line_mode;
11069 let ranges = selections.into_iter().map(|s| {
11070 if line_mode {
11071 let start = Point::new(s.start.row, 0);
11072 let end = Point::new(
11073 s.end.row,
11074 display_map
11075 .buffer_snapshot
11076 .line_len(MultiBufferRow(s.end.row)),
11077 );
11078 (start..end, display_map.fold_placeholder.clone())
11079 } else {
11080 (s.start..s.end, display_map.fold_placeholder.clone())
11081 }
11082 });
11083 self.fold_ranges(ranges, true, cx);
11084 }
11085
11086 pub fn fold_ranges<T: ToOffset + Clone>(
11087 &mut self,
11088 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
11089 auto_scroll: bool,
11090 cx: &mut ViewContext<Self>,
11091 ) {
11092 let mut fold_ranges = Vec::new();
11093 let mut buffers_affected = HashMap::default();
11094 let multi_buffer = self.buffer().read(cx);
11095 for (fold_range, fold_text) in ranges {
11096 if let Some((_, buffer, _)) =
11097 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
11098 {
11099 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11100 };
11101 fold_ranges.push((fold_range, fold_text));
11102 }
11103
11104 let mut ranges = fold_ranges.into_iter().peekable();
11105 if ranges.peek().is_some() {
11106 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
11107
11108 if auto_scroll {
11109 self.request_autoscroll(Autoscroll::fit(), cx);
11110 }
11111
11112 for buffer in buffers_affected.into_values() {
11113 self.sync_expanded_diff_hunks(buffer, cx);
11114 }
11115
11116 cx.notify();
11117
11118 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11119 // Clear diagnostics block when folding a range that contains it.
11120 let snapshot = self.snapshot(cx);
11121 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11122 drop(snapshot);
11123 self.active_diagnostics = Some(active_diagnostics);
11124 self.dismiss_diagnostics(cx);
11125 } else {
11126 self.active_diagnostics = Some(active_diagnostics);
11127 }
11128 }
11129
11130 self.scrollbar_marker_state.dirty = true;
11131 }
11132 }
11133
11134 /// Removes any folds whose ranges intersect any of the given ranges.
11135 pub fn unfold_ranges<T: ToOffset + Clone>(
11136 &mut self,
11137 ranges: &[Range<T>],
11138 inclusive: bool,
11139 auto_scroll: bool,
11140 cx: &mut ViewContext<Self>,
11141 ) {
11142 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11143 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11144 });
11145 }
11146
11147 /// Removes any folds with the given ranges.
11148 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11149 &mut self,
11150 ranges: &[Range<T>],
11151 type_id: TypeId,
11152 auto_scroll: bool,
11153 cx: &mut ViewContext<Self>,
11154 ) {
11155 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11156 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11157 });
11158 }
11159
11160 fn remove_folds_with<T: ToOffset + Clone>(
11161 &mut self,
11162 ranges: &[Range<T>],
11163 auto_scroll: bool,
11164 cx: &mut ViewContext<Self>,
11165 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11166 ) {
11167 if ranges.is_empty() {
11168 return;
11169 }
11170
11171 let mut buffers_affected = HashMap::default();
11172 let multi_buffer = self.buffer().read(cx);
11173 for range in ranges {
11174 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11175 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11176 };
11177 }
11178
11179 self.display_map.update(cx, update);
11180 if auto_scroll {
11181 self.request_autoscroll(Autoscroll::fit(), cx);
11182 }
11183
11184 for buffer in buffers_affected.into_values() {
11185 self.sync_expanded_diff_hunks(buffer, cx);
11186 }
11187
11188 cx.notify();
11189 self.scrollbar_marker_state.dirty = true;
11190 self.active_indent_guides_state.dirty = true;
11191 }
11192
11193 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11194 self.display_map.read(cx).fold_placeholder.clone()
11195 }
11196
11197 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11198 if hovered != self.gutter_hovered {
11199 self.gutter_hovered = hovered;
11200 cx.notify();
11201 }
11202 }
11203
11204 pub fn insert_blocks(
11205 &mut self,
11206 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11207 autoscroll: Option<Autoscroll>,
11208 cx: &mut ViewContext<Self>,
11209 ) -> Vec<CustomBlockId> {
11210 let blocks = self
11211 .display_map
11212 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11213 if let Some(autoscroll) = autoscroll {
11214 self.request_autoscroll(autoscroll, cx);
11215 }
11216 cx.notify();
11217 blocks
11218 }
11219
11220 pub fn resize_blocks(
11221 &mut self,
11222 heights: HashMap<CustomBlockId, u32>,
11223 autoscroll: Option<Autoscroll>,
11224 cx: &mut ViewContext<Self>,
11225 ) {
11226 self.display_map
11227 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11228 if let Some(autoscroll) = autoscroll {
11229 self.request_autoscroll(autoscroll, cx);
11230 }
11231 cx.notify();
11232 }
11233
11234 pub fn replace_blocks(
11235 &mut self,
11236 renderers: HashMap<CustomBlockId, RenderBlock>,
11237 autoscroll: Option<Autoscroll>,
11238 cx: &mut ViewContext<Self>,
11239 ) {
11240 self.display_map
11241 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11242 if let Some(autoscroll) = autoscroll {
11243 self.request_autoscroll(autoscroll, cx);
11244 }
11245 cx.notify();
11246 }
11247
11248 pub fn remove_blocks(
11249 &mut self,
11250 block_ids: HashSet<CustomBlockId>,
11251 autoscroll: Option<Autoscroll>,
11252 cx: &mut ViewContext<Self>,
11253 ) {
11254 self.display_map.update(cx, |display_map, cx| {
11255 display_map.remove_blocks(block_ids, cx)
11256 });
11257 if let Some(autoscroll) = autoscroll {
11258 self.request_autoscroll(autoscroll, cx);
11259 }
11260 cx.notify();
11261 }
11262
11263 pub fn row_for_block(
11264 &self,
11265 block_id: CustomBlockId,
11266 cx: &mut ViewContext<Self>,
11267 ) -> Option<DisplayRow> {
11268 self.display_map
11269 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11270 }
11271
11272 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11273 self.focused_block = Some(focused_block);
11274 }
11275
11276 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11277 self.focused_block.take()
11278 }
11279
11280 pub fn insert_creases(
11281 &mut self,
11282 creases: impl IntoIterator<Item = Crease>,
11283 cx: &mut ViewContext<Self>,
11284 ) -> Vec<CreaseId> {
11285 self.display_map
11286 .update(cx, |map, cx| map.insert_creases(creases, cx))
11287 }
11288
11289 pub fn remove_creases(
11290 &mut self,
11291 ids: impl IntoIterator<Item = CreaseId>,
11292 cx: &mut ViewContext<Self>,
11293 ) {
11294 self.display_map
11295 .update(cx, |map, cx| map.remove_creases(ids, cx));
11296 }
11297
11298 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11299 self.display_map
11300 .update(cx, |map, cx| map.snapshot(cx))
11301 .longest_row()
11302 }
11303
11304 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11305 self.display_map
11306 .update(cx, |map, cx| map.snapshot(cx))
11307 .max_point()
11308 }
11309
11310 pub fn text(&self, cx: &AppContext) -> String {
11311 self.buffer.read(cx).read(cx).text()
11312 }
11313
11314 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11315 let text = self.text(cx);
11316 let text = text.trim();
11317
11318 if text.is_empty() {
11319 return None;
11320 }
11321
11322 Some(text.to_string())
11323 }
11324
11325 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11326 self.transact(cx, |this, cx| {
11327 this.buffer
11328 .read(cx)
11329 .as_singleton()
11330 .expect("you can only call set_text on editors for singleton buffers")
11331 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11332 });
11333 }
11334
11335 pub fn display_text(&self, cx: &mut AppContext) -> String {
11336 self.display_map
11337 .update(cx, |map, cx| map.snapshot(cx))
11338 .text()
11339 }
11340
11341 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11342 let mut wrap_guides = smallvec::smallvec![];
11343
11344 if self.show_wrap_guides == Some(false) {
11345 return wrap_guides;
11346 }
11347
11348 let settings = self.buffer.read(cx).settings_at(0, cx);
11349 if settings.show_wrap_guides {
11350 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11351 wrap_guides.push((soft_wrap as usize, true));
11352 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11353 wrap_guides.push((soft_wrap as usize, true));
11354 }
11355 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11356 }
11357
11358 wrap_guides
11359 }
11360
11361 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11362 let settings = self.buffer.read(cx).settings_at(0, cx);
11363 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11364 match mode {
11365 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11366 SoftWrap::None
11367 }
11368 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11369 language_settings::SoftWrap::PreferredLineLength => {
11370 SoftWrap::Column(settings.preferred_line_length)
11371 }
11372 language_settings::SoftWrap::Bounded => {
11373 SoftWrap::Bounded(settings.preferred_line_length)
11374 }
11375 }
11376 }
11377
11378 pub fn set_soft_wrap_mode(
11379 &mut self,
11380 mode: language_settings::SoftWrap,
11381 cx: &mut ViewContext<Self>,
11382 ) {
11383 self.soft_wrap_mode_override = Some(mode);
11384 cx.notify();
11385 }
11386
11387 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11388 self.text_style_refinement = Some(style);
11389 }
11390
11391 /// called by the Element so we know what style we were most recently rendered with.
11392 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11393 let rem_size = cx.rem_size();
11394 self.display_map.update(cx, |map, cx| {
11395 map.set_font(
11396 style.text.font(),
11397 style.text.font_size.to_pixels(rem_size),
11398 cx,
11399 )
11400 });
11401 self.style = Some(style);
11402 }
11403
11404 pub fn style(&self) -> Option<&EditorStyle> {
11405 self.style.as_ref()
11406 }
11407
11408 // Called by the element. This method is not designed to be called outside of the editor
11409 // element's layout code because it does not notify when rewrapping is computed synchronously.
11410 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11411 self.display_map
11412 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11413 }
11414
11415 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11416 if self.soft_wrap_mode_override.is_some() {
11417 self.soft_wrap_mode_override.take();
11418 } else {
11419 let soft_wrap = match self.soft_wrap_mode(cx) {
11420 SoftWrap::GitDiff => return,
11421 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11422 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11423 language_settings::SoftWrap::None
11424 }
11425 };
11426 self.soft_wrap_mode_override = Some(soft_wrap);
11427 }
11428 cx.notify();
11429 }
11430
11431 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11432 let Some(workspace) = self.workspace() else {
11433 return;
11434 };
11435 let fs = workspace.read(cx).app_state().fs.clone();
11436 let current_show = TabBarSettings::get_global(cx).show;
11437 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11438 setting.show = Some(!current_show);
11439 });
11440 }
11441
11442 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11443 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11444 self.buffer
11445 .read(cx)
11446 .settings_at(0, cx)
11447 .indent_guides
11448 .enabled
11449 });
11450 self.show_indent_guides = Some(!currently_enabled);
11451 cx.notify();
11452 }
11453
11454 fn should_show_indent_guides(&self) -> Option<bool> {
11455 self.show_indent_guides
11456 }
11457
11458 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11459 let mut editor_settings = EditorSettings::get_global(cx).clone();
11460 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11461 EditorSettings::override_global(editor_settings, cx);
11462 }
11463
11464 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11465 self.use_relative_line_numbers
11466 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11467 }
11468
11469 pub fn toggle_relative_line_numbers(
11470 &mut self,
11471 _: &ToggleRelativeLineNumbers,
11472 cx: &mut ViewContext<Self>,
11473 ) {
11474 let is_relative = self.should_use_relative_line_numbers(cx);
11475 self.set_relative_line_number(Some(!is_relative), cx)
11476 }
11477
11478 pub fn set_relative_line_number(
11479 &mut self,
11480 is_relative: Option<bool>,
11481 cx: &mut ViewContext<Self>,
11482 ) {
11483 self.use_relative_line_numbers = is_relative;
11484 cx.notify();
11485 }
11486
11487 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11488 self.show_gutter = show_gutter;
11489 cx.notify();
11490 }
11491
11492 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11493 self.show_line_numbers = Some(show_line_numbers);
11494 cx.notify();
11495 }
11496
11497 pub fn set_show_git_diff_gutter(
11498 &mut self,
11499 show_git_diff_gutter: bool,
11500 cx: &mut ViewContext<Self>,
11501 ) {
11502 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11503 cx.notify();
11504 }
11505
11506 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11507 self.show_code_actions = Some(show_code_actions);
11508 cx.notify();
11509 }
11510
11511 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11512 self.show_runnables = Some(show_runnables);
11513 cx.notify();
11514 }
11515
11516 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11517 if self.display_map.read(cx).masked != masked {
11518 self.display_map.update(cx, |map, _| map.masked = masked);
11519 }
11520 cx.notify()
11521 }
11522
11523 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11524 self.show_wrap_guides = Some(show_wrap_guides);
11525 cx.notify();
11526 }
11527
11528 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11529 self.show_indent_guides = Some(show_indent_guides);
11530 cx.notify();
11531 }
11532
11533 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11534 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11535 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11536 if let Some(dir) = file.abs_path(cx).parent() {
11537 return Some(dir.to_owned());
11538 }
11539 }
11540
11541 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11542 return Some(project_path.path.to_path_buf());
11543 }
11544 }
11545
11546 None
11547 }
11548
11549 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11550 self.active_excerpt(cx)?
11551 .1
11552 .read(cx)
11553 .file()
11554 .and_then(|f| f.as_local())
11555 }
11556
11557 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11558 if let Some(target) = self.target_file(cx) {
11559 cx.reveal_path(&target.abs_path(cx));
11560 }
11561 }
11562
11563 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11564 if let Some(file) = self.target_file(cx) {
11565 if let Some(path) = file.abs_path(cx).to_str() {
11566 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11567 }
11568 }
11569 }
11570
11571 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11572 if let Some(file) = self.target_file(cx) {
11573 if let Some(path) = file.path().to_str() {
11574 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11575 }
11576 }
11577 }
11578
11579 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11580 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11581
11582 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11583 self.start_git_blame(true, cx);
11584 }
11585
11586 cx.notify();
11587 }
11588
11589 pub fn toggle_git_blame_inline(
11590 &mut self,
11591 _: &ToggleGitBlameInline,
11592 cx: &mut ViewContext<Self>,
11593 ) {
11594 self.toggle_git_blame_inline_internal(true, cx);
11595 cx.notify();
11596 }
11597
11598 pub fn git_blame_inline_enabled(&self) -> bool {
11599 self.git_blame_inline_enabled
11600 }
11601
11602 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11603 self.show_selection_menu = self
11604 .show_selection_menu
11605 .map(|show_selections_menu| !show_selections_menu)
11606 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11607
11608 cx.notify();
11609 }
11610
11611 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11612 self.show_selection_menu
11613 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11614 }
11615
11616 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11617 if let Some(project) = self.project.as_ref() {
11618 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11619 return;
11620 };
11621
11622 if buffer.read(cx).file().is_none() {
11623 return;
11624 }
11625
11626 let focused = self.focus_handle(cx).contains_focused(cx);
11627
11628 let project = project.clone();
11629 let blame =
11630 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11631 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11632 self.blame = Some(blame);
11633 }
11634 }
11635
11636 fn toggle_git_blame_inline_internal(
11637 &mut self,
11638 user_triggered: bool,
11639 cx: &mut ViewContext<Self>,
11640 ) {
11641 if self.git_blame_inline_enabled {
11642 self.git_blame_inline_enabled = false;
11643 self.show_git_blame_inline = false;
11644 self.show_git_blame_inline_delay_task.take();
11645 } else {
11646 self.git_blame_inline_enabled = true;
11647 self.start_git_blame_inline(user_triggered, cx);
11648 }
11649
11650 cx.notify();
11651 }
11652
11653 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11654 self.start_git_blame(user_triggered, cx);
11655
11656 if ProjectSettings::get_global(cx)
11657 .git
11658 .inline_blame_delay()
11659 .is_some()
11660 {
11661 self.start_inline_blame_timer(cx);
11662 } else {
11663 self.show_git_blame_inline = true
11664 }
11665 }
11666
11667 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11668 self.blame.as_ref()
11669 }
11670
11671 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11672 self.show_git_blame_gutter && self.has_blame_entries(cx)
11673 }
11674
11675 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11676 self.show_git_blame_inline
11677 && self.focus_handle.is_focused(cx)
11678 && !self.newest_selection_head_on_empty_line(cx)
11679 && self.has_blame_entries(cx)
11680 }
11681
11682 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11683 self.blame()
11684 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11685 }
11686
11687 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11688 let cursor_anchor = self.selections.newest_anchor().head();
11689
11690 let snapshot = self.buffer.read(cx).snapshot(cx);
11691 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11692
11693 snapshot.line_len(buffer_row) == 0
11694 }
11695
11696 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11697 let buffer_and_selection = maybe!({
11698 let selection = self.selections.newest::<Point>(cx);
11699 let selection_range = selection.range();
11700
11701 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11702 (buffer, selection_range.start.row..selection_range.end.row)
11703 } else {
11704 let buffer_ranges = self
11705 .buffer()
11706 .read(cx)
11707 .range_to_buffer_ranges(selection_range, cx);
11708
11709 let (buffer, range, _) = if selection.reversed {
11710 buffer_ranges.first()
11711 } else {
11712 buffer_ranges.last()
11713 }?;
11714
11715 let snapshot = buffer.read(cx).snapshot();
11716 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11717 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11718 (buffer.clone(), selection)
11719 };
11720
11721 Some((buffer, selection))
11722 });
11723
11724 let Some((buffer, selection)) = buffer_and_selection else {
11725 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11726 };
11727
11728 let Some(project) = self.project.as_ref() else {
11729 return Task::ready(Err(anyhow!("editor does not have project")));
11730 };
11731
11732 project.update(cx, |project, cx| {
11733 project.get_permalink_to_line(&buffer, selection, cx)
11734 })
11735 }
11736
11737 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11738 let permalink_task = self.get_permalink_to_line(cx);
11739 let workspace = self.workspace();
11740
11741 cx.spawn(|_, mut cx| async move {
11742 match permalink_task.await {
11743 Ok(permalink) => {
11744 cx.update(|cx| {
11745 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11746 })
11747 .ok();
11748 }
11749 Err(err) => {
11750 let message = format!("Failed to copy permalink: {err}");
11751
11752 Err::<(), anyhow::Error>(err).log_err();
11753
11754 if let Some(workspace) = workspace {
11755 workspace
11756 .update(&mut cx, |workspace, cx| {
11757 struct CopyPermalinkToLine;
11758
11759 workspace.show_toast(
11760 Toast::new(
11761 NotificationId::unique::<CopyPermalinkToLine>(),
11762 message,
11763 ),
11764 cx,
11765 )
11766 })
11767 .ok();
11768 }
11769 }
11770 }
11771 })
11772 .detach();
11773 }
11774
11775 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11776 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11777 if let Some(file) = self.target_file(cx) {
11778 if let Some(path) = file.path().to_str() {
11779 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11780 }
11781 }
11782 }
11783
11784 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11785 let permalink_task = self.get_permalink_to_line(cx);
11786 let workspace = self.workspace();
11787
11788 cx.spawn(|_, mut cx| async move {
11789 match permalink_task.await {
11790 Ok(permalink) => {
11791 cx.update(|cx| {
11792 cx.open_url(permalink.as_ref());
11793 })
11794 .ok();
11795 }
11796 Err(err) => {
11797 let message = format!("Failed to open permalink: {err}");
11798
11799 Err::<(), anyhow::Error>(err).log_err();
11800
11801 if let Some(workspace) = workspace {
11802 workspace
11803 .update(&mut cx, |workspace, cx| {
11804 struct OpenPermalinkToLine;
11805
11806 workspace.show_toast(
11807 Toast::new(
11808 NotificationId::unique::<OpenPermalinkToLine>(),
11809 message,
11810 ),
11811 cx,
11812 )
11813 })
11814 .ok();
11815 }
11816 }
11817 }
11818 })
11819 .detach();
11820 }
11821
11822 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11823 /// last highlight added will be used.
11824 ///
11825 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11826 pub fn highlight_rows<T: 'static>(
11827 &mut self,
11828 range: Range<Anchor>,
11829 color: Hsla,
11830 should_autoscroll: bool,
11831 cx: &mut ViewContext<Self>,
11832 ) {
11833 let snapshot = self.buffer().read(cx).snapshot(cx);
11834 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11835 let ix = row_highlights.binary_search_by(|highlight| {
11836 Ordering::Equal
11837 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11838 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11839 });
11840
11841 if let Err(mut ix) = ix {
11842 let index = post_inc(&mut self.highlight_order);
11843
11844 // If this range intersects with the preceding highlight, then merge it with
11845 // the preceding highlight. Otherwise insert a new highlight.
11846 let mut merged = false;
11847 if ix > 0 {
11848 let prev_highlight = &mut row_highlights[ix - 1];
11849 if prev_highlight
11850 .range
11851 .end
11852 .cmp(&range.start, &snapshot)
11853 .is_ge()
11854 {
11855 ix -= 1;
11856 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11857 prev_highlight.range.end = range.end;
11858 }
11859 merged = true;
11860 prev_highlight.index = index;
11861 prev_highlight.color = color;
11862 prev_highlight.should_autoscroll = should_autoscroll;
11863 }
11864 }
11865
11866 if !merged {
11867 row_highlights.insert(
11868 ix,
11869 RowHighlight {
11870 range: range.clone(),
11871 index,
11872 color,
11873 should_autoscroll,
11874 },
11875 );
11876 }
11877
11878 // If any of the following highlights intersect with this one, merge them.
11879 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11880 let highlight = &row_highlights[ix];
11881 if next_highlight
11882 .range
11883 .start
11884 .cmp(&highlight.range.end, &snapshot)
11885 .is_le()
11886 {
11887 if next_highlight
11888 .range
11889 .end
11890 .cmp(&highlight.range.end, &snapshot)
11891 .is_gt()
11892 {
11893 row_highlights[ix].range.end = next_highlight.range.end;
11894 }
11895 row_highlights.remove(ix + 1);
11896 } else {
11897 break;
11898 }
11899 }
11900 }
11901 }
11902
11903 /// Remove any highlighted row ranges of the given type that intersect the
11904 /// given ranges.
11905 pub fn remove_highlighted_rows<T: 'static>(
11906 &mut self,
11907 ranges_to_remove: Vec<Range<Anchor>>,
11908 cx: &mut ViewContext<Self>,
11909 ) {
11910 let snapshot = self.buffer().read(cx).snapshot(cx);
11911 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11912 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11913 row_highlights.retain(|highlight| {
11914 while let Some(range_to_remove) = ranges_to_remove.peek() {
11915 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11916 Ordering::Less | Ordering::Equal => {
11917 ranges_to_remove.next();
11918 }
11919 Ordering::Greater => {
11920 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11921 Ordering::Less | Ordering::Equal => {
11922 return false;
11923 }
11924 Ordering::Greater => break,
11925 }
11926 }
11927 }
11928 }
11929
11930 true
11931 })
11932 }
11933
11934 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11935 pub fn clear_row_highlights<T: 'static>(&mut self) {
11936 self.highlighted_rows.remove(&TypeId::of::<T>());
11937 }
11938
11939 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11940 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11941 self.highlighted_rows
11942 .get(&TypeId::of::<T>())
11943 .map_or(&[] as &[_], |vec| vec.as_slice())
11944 .iter()
11945 .map(|highlight| (highlight.range.clone(), highlight.color))
11946 }
11947
11948 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11949 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11950 /// Allows to ignore certain kinds of highlights.
11951 pub fn highlighted_display_rows(
11952 &mut self,
11953 cx: &mut WindowContext,
11954 ) -> BTreeMap<DisplayRow, Hsla> {
11955 let snapshot = self.snapshot(cx);
11956 let mut used_highlight_orders = HashMap::default();
11957 self.highlighted_rows
11958 .iter()
11959 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11960 .fold(
11961 BTreeMap::<DisplayRow, Hsla>::new(),
11962 |mut unique_rows, highlight| {
11963 let start = highlight.range.start.to_display_point(&snapshot);
11964 let end = highlight.range.end.to_display_point(&snapshot);
11965 let start_row = start.row().0;
11966 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11967 && end.column() == 0
11968 {
11969 end.row().0.saturating_sub(1)
11970 } else {
11971 end.row().0
11972 };
11973 for row in start_row..=end_row {
11974 let used_index =
11975 used_highlight_orders.entry(row).or_insert(highlight.index);
11976 if highlight.index >= *used_index {
11977 *used_index = highlight.index;
11978 unique_rows.insert(DisplayRow(row), highlight.color);
11979 }
11980 }
11981 unique_rows
11982 },
11983 )
11984 }
11985
11986 pub fn highlighted_display_row_for_autoscroll(
11987 &self,
11988 snapshot: &DisplaySnapshot,
11989 ) -> Option<DisplayRow> {
11990 self.highlighted_rows
11991 .values()
11992 .flat_map(|highlighted_rows| highlighted_rows.iter())
11993 .filter_map(|highlight| {
11994 if highlight.should_autoscroll {
11995 Some(highlight.range.start.to_display_point(snapshot).row())
11996 } else {
11997 None
11998 }
11999 })
12000 .min()
12001 }
12002
12003 pub fn set_search_within_ranges(
12004 &mut self,
12005 ranges: &[Range<Anchor>],
12006 cx: &mut ViewContext<Self>,
12007 ) {
12008 self.highlight_background::<SearchWithinRange>(
12009 ranges,
12010 |colors| colors.editor_document_highlight_read_background,
12011 cx,
12012 )
12013 }
12014
12015 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12016 self.breadcrumb_header = Some(new_header);
12017 }
12018
12019 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12020 self.clear_background_highlights::<SearchWithinRange>(cx);
12021 }
12022
12023 pub fn highlight_background<T: 'static>(
12024 &mut self,
12025 ranges: &[Range<Anchor>],
12026 color_fetcher: fn(&ThemeColors) -> Hsla,
12027 cx: &mut ViewContext<Self>,
12028 ) {
12029 self.background_highlights
12030 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12031 self.scrollbar_marker_state.dirty = true;
12032 cx.notify();
12033 }
12034
12035 pub fn clear_background_highlights<T: 'static>(
12036 &mut self,
12037 cx: &mut ViewContext<Self>,
12038 ) -> Option<BackgroundHighlight> {
12039 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12040 if !text_highlights.1.is_empty() {
12041 self.scrollbar_marker_state.dirty = true;
12042 cx.notify();
12043 }
12044 Some(text_highlights)
12045 }
12046
12047 pub fn highlight_gutter<T: 'static>(
12048 &mut self,
12049 ranges: &[Range<Anchor>],
12050 color_fetcher: fn(&AppContext) -> Hsla,
12051 cx: &mut ViewContext<Self>,
12052 ) {
12053 self.gutter_highlights
12054 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12055 cx.notify();
12056 }
12057
12058 pub fn clear_gutter_highlights<T: 'static>(
12059 &mut self,
12060 cx: &mut ViewContext<Self>,
12061 ) -> Option<GutterHighlight> {
12062 cx.notify();
12063 self.gutter_highlights.remove(&TypeId::of::<T>())
12064 }
12065
12066 #[cfg(feature = "test-support")]
12067 pub fn all_text_background_highlights(
12068 &mut self,
12069 cx: &mut ViewContext<Self>,
12070 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12071 let snapshot = self.snapshot(cx);
12072 let buffer = &snapshot.buffer_snapshot;
12073 let start = buffer.anchor_before(0);
12074 let end = buffer.anchor_after(buffer.len());
12075 let theme = cx.theme().colors();
12076 self.background_highlights_in_range(start..end, &snapshot, theme)
12077 }
12078
12079 #[cfg(feature = "test-support")]
12080 pub fn search_background_highlights(
12081 &mut self,
12082 cx: &mut ViewContext<Self>,
12083 ) -> Vec<Range<Point>> {
12084 let snapshot = self.buffer().read(cx).snapshot(cx);
12085
12086 let highlights = self
12087 .background_highlights
12088 .get(&TypeId::of::<items::BufferSearchHighlights>());
12089
12090 if let Some((_color, ranges)) = highlights {
12091 ranges
12092 .iter()
12093 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12094 .collect_vec()
12095 } else {
12096 vec![]
12097 }
12098 }
12099
12100 fn document_highlights_for_position<'a>(
12101 &'a self,
12102 position: Anchor,
12103 buffer: &'a MultiBufferSnapshot,
12104 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12105 let read_highlights = self
12106 .background_highlights
12107 .get(&TypeId::of::<DocumentHighlightRead>())
12108 .map(|h| &h.1);
12109 let write_highlights = self
12110 .background_highlights
12111 .get(&TypeId::of::<DocumentHighlightWrite>())
12112 .map(|h| &h.1);
12113 let left_position = position.bias_left(buffer);
12114 let right_position = position.bias_right(buffer);
12115 read_highlights
12116 .into_iter()
12117 .chain(write_highlights)
12118 .flat_map(move |ranges| {
12119 let start_ix = match ranges.binary_search_by(|probe| {
12120 let cmp = probe.end.cmp(&left_position, buffer);
12121 if cmp.is_ge() {
12122 Ordering::Greater
12123 } else {
12124 Ordering::Less
12125 }
12126 }) {
12127 Ok(i) | Err(i) => i,
12128 };
12129
12130 ranges[start_ix..]
12131 .iter()
12132 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12133 })
12134 }
12135
12136 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12137 self.background_highlights
12138 .get(&TypeId::of::<T>())
12139 .map_or(false, |(_, highlights)| !highlights.is_empty())
12140 }
12141
12142 pub fn background_highlights_in_range(
12143 &self,
12144 search_range: Range<Anchor>,
12145 display_snapshot: &DisplaySnapshot,
12146 theme: &ThemeColors,
12147 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12148 let mut results = Vec::new();
12149 for (color_fetcher, ranges) in self.background_highlights.values() {
12150 let color = color_fetcher(theme);
12151 let start_ix = match ranges.binary_search_by(|probe| {
12152 let cmp = probe
12153 .end
12154 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12155 if cmp.is_gt() {
12156 Ordering::Greater
12157 } else {
12158 Ordering::Less
12159 }
12160 }) {
12161 Ok(i) | Err(i) => i,
12162 };
12163 for range in &ranges[start_ix..] {
12164 if range
12165 .start
12166 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12167 .is_ge()
12168 {
12169 break;
12170 }
12171
12172 let start = range.start.to_display_point(display_snapshot);
12173 let end = range.end.to_display_point(display_snapshot);
12174 results.push((start..end, color))
12175 }
12176 }
12177 results
12178 }
12179
12180 pub fn background_highlight_row_ranges<T: 'static>(
12181 &self,
12182 search_range: Range<Anchor>,
12183 display_snapshot: &DisplaySnapshot,
12184 count: usize,
12185 ) -> Vec<RangeInclusive<DisplayPoint>> {
12186 let mut results = Vec::new();
12187 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12188 return vec![];
12189 };
12190
12191 let start_ix = match ranges.binary_search_by(|probe| {
12192 let cmp = probe
12193 .end
12194 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12195 if cmp.is_gt() {
12196 Ordering::Greater
12197 } else {
12198 Ordering::Less
12199 }
12200 }) {
12201 Ok(i) | Err(i) => i,
12202 };
12203 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12204 if let (Some(start_display), Some(end_display)) = (start, end) {
12205 results.push(
12206 start_display.to_display_point(display_snapshot)
12207 ..=end_display.to_display_point(display_snapshot),
12208 );
12209 }
12210 };
12211 let mut start_row: Option<Point> = None;
12212 let mut end_row: Option<Point> = None;
12213 if ranges.len() > count {
12214 return Vec::new();
12215 }
12216 for range in &ranges[start_ix..] {
12217 if range
12218 .start
12219 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12220 .is_ge()
12221 {
12222 break;
12223 }
12224 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12225 if let Some(current_row) = &end_row {
12226 if end.row == current_row.row {
12227 continue;
12228 }
12229 }
12230 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12231 if start_row.is_none() {
12232 assert_eq!(end_row, None);
12233 start_row = Some(start);
12234 end_row = Some(end);
12235 continue;
12236 }
12237 if let Some(current_end) = end_row.as_mut() {
12238 if start.row > current_end.row + 1 {
12239 push_region(start_row, end_row);
12240 start_row = Some(start);
12241 end_row = Some(end);
12242 } else {
12243 // Merge two hunks.
12244 *current_end = end;
12245 }
12246 } else {
12247 unreachable!();
12248 }
12249 }
12250 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12251 push_region(start_row, end_row);
12252 results
12253 }
12254
12255 pub fn gutter_highlights_in_range(
12256 &self,
12257 search_range: Range<Anchor>,
12258 display_snapshot: &DisplaySnapshot,
12259 cx: &AppContext,
12260 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12261 let mut results = Vec::new();
12262 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12263 let color = color_fetcher(cx);
12264 let start_ix = match ranges.binary_search_by(|probe| {
12265 let cmp = probe
12266 .end
12267 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12268 if cmp.is_gt() {
12269 Ordering::Greater
12270 } else {
12271 Ordering::Less
12272 }
12273 }) {
12274 Ok(i) | Err(i) => i,
12275 };
12276 for range in &ranges[start_ix..] {
12277 if range
12278 .start
12279 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12280 .is_ge()
12281 {
12282 break;
12283 }
12284
12285 let start = range.start.to_display_point(display_snapshot);
12286 let end = range.end.to_display_point(display_snapshot);
12287 results.push((start..end, color))
12288 }
12289 }
12290 results
12291 }
12292
12293 /// Get the text ranges corresponding to the redaction query
12294 pub fn redacted_ranges(
12295 &self,
12296 search_range: Range<Anchor>,
12297 display_snapshot: &DisplaySnapshot,
12298 cx: &WindowContext,
12299 ) -> Vec<Range<DisplayPoint>> {
12300 display_snapshot
12301 .buffer_snapshot
12302 .redacted_ranges(search_range, |file| {
12303 if let Some(file) = file {
12304 file.is_private()
12305 && EditorSettings::get(
12306 Some(SettingsLocation {
12307 worktree_id: file.worktree_id(cx),
12308 path: file.path().as_ref(),
12309 }),
12310 cx,
12311 )
12312 .redact_private_values
12313 } else {
12314 false
12315 }
12316 })
12317 .map(|range| {
12318 range.start.to_display_point(display_snapshot)
12319 ..range.end.to_display_point(display_snapshot)
12320 })
12321 .collect()
12322 }
12323
12324 pub fn highlight_text<T: 'static>(
12325 &mut self,
12326 ranges: Vec<Range<Anchor>>,
12327 style: HighlightStyle,
12328 cx: &mut ViewContext<Self>,
12329 ) {
12330 self.display_map.update(cx, |map, _| {
12331 map.highlight_text(TypeId::of::<T>(), ranges, style)
12332 });
12333 cx.notify();
12334 }
12335
12336 pub(crate) fn highlight_inlays<T: 'static>(
12337 &mut self,
12338 highlights: Vec<InlayHighlight>,
12339 style: HighlightStyle,
12340 cx: &mut ViewContext<Self>,
12341 ) {
12342 self.display_map.update(cx, |map, _| {
12343 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12344 });
12345 cx.notify();
12346 }
12347
12348 pub fn text_highlights<'a, T: 'static>(
12349 &'a self,
12350 cx: &'a AppContext,
12351 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12352 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12353 }
12354
12355 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12356 let cleared = self
12357 .display_map
12358 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12359 if cleared {
12360 cx.notify();
12361 }
12362 }
12363
12364 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12365 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12366 && self.focus_handle.is_focused(cx)
12367 }
12368
12369 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12370 self.show_cursor_when_unfocused = is_enabled;
12371 cx.notify();
12372 }
12373
12374 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12375 cx.notify();
12376 }
12377
12378 fn on_buffer_event(
12379 &mut self,
12380 multibuffer: Model<MultiBuffer>,
12381 event: &multi_buffer::Event,
12382 cx: &mut ViewContext<Self>,
12383 ) {
12384 match event {
12385 multi_buffer::Event::Edited {
12386 singleton_buffer_edited,
12387 } => {
12388 self.scrollbar_marker_state.dirty = true;
12389 self.active_indent_guides_state.dirty = true;
12390 self.refresh_active_diagnostics(cx);
12391 self.refresh_code_actions(cx);
12392 if self.has_active_inline_completion(cx) {
12393 self.update_visible_inline_completion(cx);
12394 }
12395 cx.emit(EditorEvent::BufferEdited);
12396 cx.emit(SearchEvent::MatchesInvalidated);
12397 if *singleton_buffer_edited {
12398 if let Some(project) = &self.project {
12399 let project = project.read(cx);
12400 #[allow(clippy::mutable_key_type)]
12401 let languages_affected = multibuffer
12402 .read(cx)
12403 .all_buffers()
12404 .into_iter()
12405 .filter_map(|buffer| {
12406 let buffer = buffer.read(cx);
12407 let language = buffer.language()?;
12408 if project.is_local()
12409 && project.language_servers_for_buffer(buffer, cx).count() == 0
12410 {
12411 None
12412 } else {
12413 Some(language)
12414 }
12415 })
12416 .cloned()
12417 .collect::<HashSet<_>>();
12418 if !languages_affected.is_empty() {
12419 self.refresh_inlay_hints(
12420 InlayHintRefreshReason::BufferEdited(languages_affected),
12421 cx,
12422 );
12423 }
12424 }
12425 }
12426
12427 let Some(project) = &self.project else { return };
12428 let (telemetry, is_via_ssh) = {
12429 let project = project.read(cx);
12430 let telemetry = project.client().telemetry().clone();
12431 let is_via_ssh = project.is_via_ssh();
12432 (telemetry, is_via_ssh)
12433 };
12434 refresh_linked_ranges(self, cx);
12435 telemetry.log_edit_event("editor", is_via_ssh);
12436 }
12437 multi_buffer::Event::ExcerptsAdded {
12438 buffer,
12439 predecessor,
12440 excerpts,
12441 } => {
12442 self.tasks_update_task = Some(self.refresh_runnables(cx));
12443 cx.emit(EditorEvent::ExcerptsAdded {
12444 buffer: buffer.clone(),
12445 predecessor: *predecessor,
12446 excerpts: excerpts.clone(),
12447 });
12448 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12449 }
12450 multi_buffer::Event::ExcerptsRemoved { ids } => {
12451 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12452 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12453 }
12454 multi_buffer::Event::ExcerptsEdited { ids } => {
12455 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12456 }
12457 multi_buffer::Event::ExcerptsExpanded { ids } => {
12458 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12459 }
12460 multi_buffer::Event::Reparsed(buffer_id) => {
12461 self.tasks_update_task = Some(self.refresh_runnables(cx));
12462
12463 cx.emit(EditorEvent::Reparsed(*buffer_id));
12464 }
12465 multi_buffer::Event::LanguageChanged(buffer_id) => {
12466 linked_editing_ranges::refresh_linked_ranges(self, cx);
12467 cx.emit(EditorEvent::Reparsed(*buffer_id));
12468 cx.notify();
12469 }
12470 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12471 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12472 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12473 cx.emit(EditorEvent::TitleChanged)
12474 }
12475 multi_buffer::Event::DiffBaseChanged => {
12476 self.scrollbar_marker_state.dirty = true;
12477 cx.emit(EditorEvent::DiffBaseChanged);
12478 cx.notify();
12479 }
12480 multi_buffer::Event::DiffUpdated { buffer } => {
12481 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12482 cx.notify();
12483 }
12484 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12485 multi_buffer::Event::DiagnosticsUpdated => {
12486 self.refresh_active_diagnostics(cx);
12487 self.scrollbar_marker_state.dirty = true;
12488 cx.notify();
12489 }
12490 _ => {}
12491 };
12492 }
12493
12494 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12495 cx.notify();
12496 }
12497
12498 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12499 self.tasks_update_task = Some(self.refresh_runnables(cx));
12500 self.refresh_inline_completion(true, false, cx);
12501 self.refresh_inlay_hints(
12502 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12503 self.selections.newest_anchor().head(),
12504 &self.buffer.read(cx).snapshot(cx),
12505 cx,
12506 )),
12507 cx,
12508 );
12509
12510 let old_cursor_shape = self.cursor_shape;
12511
12512 {
12513 let editor_settings = EditorSettings::get_global(cx);
12514 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12515 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12516 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12517 }
12518
12519 if old_cursor_shape != self.cursor_shape {
12520 cx.emit(EditorEvent::CursorShapeChanged);
12521 }
12522
12523 let project_settings = ProjectSettings::get_global(cx);
12524 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12525
12526 if self.mode == EditorMode::Full {
12527 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12528 if self.git_blame_inline_enabled != inline_blame_enabled {
12529 self.toggle_git_blame_inline_internal(false, cx);
12530 }
12531 }
12532
12533 cx.notify();
12534 }
12535
12536 pub fn set_searchable(&mut self, searchable: bool) {
12537 self.searchable = searchable;
12538 }
12539
12540 pub fn searchable(&self) -> bool {
12541 self.searchable
12542 }
12543
12544 fn open_proposed_changes_editor(
12545 &mut self,
12546 _: &OpenProposedChangesEditor,
12547 cx: &mut ViewContext<Self>,
12548 ) {
12549 let Some(workspace) = self.workspace() else {
12550 cx.propagate();
12551 return;
12552 };
12553
12554 let selections = self.selections.all::<usize>(cx);
12555 let buffer = self.buffer.read(cx);
12556 let mut new_selections_by_buffer = HashMap::default();
12557 for selection in selections {
12558 for (buffer, range, _) in
12559 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12560 {
12561 let mut range = range.to_point(buffer.read(cx));
12562 range.start.column = 0;
12563 range.end.column = buffer.read(cx).line_len(range.end.row);
12564 new_selections_by_buffer
12565 .entry(buffer)
12566 .or_insert(Vec::new())
12567 .push(range)
12568 }
12569 }
12570
12571 let proposed_changes_buffers = new_selections_by_buffer
12572 .into_iter()
12573 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12574 .collect::<Vec<_>>();
12575 let proposed_changes_editor = cx.new_view(|cx| {
12576 ProposedChangesEditor::new(
12577 "Proposed changes",
12578 proposed_changes_buffers,
12579 self.project.clone(),
12580 cx,
12581 )
12582 });
12583
12584 cx.window_context().defer(move |cx| {
12585 workspace.update(cx, |workspace, cx| {
12586 workspace.active_pane().update(cx, |pane, cx| {
12587 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12588 });
12589 });
12590 });
12591 }
12592
12593 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12594 self.open_excerpts_common(None, true, cx)
12595 }
12596
12597 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12598 self.open_excerpts_common(None, false, cx)
12599 }
12600
12601 fn open_excerpts_common(
12602 &mut self,
12603 jump_data: Option<JumpData>,
12604 split: bool,
12605 cx: &mut ViewContext<Self>,
12606 ) {
12607 let Some(workspace) = self.workspace() else {
12608 cx.propagate();
12609 return;
12610 };
12611
12612 if self.buffer.read(cx).is_singleton() {
12613 cx.propagate();
12614 return;
12615 }
12616
12617 let mut new_selections_by_buffer = HashMap::default();
12618 match &jump_data {
12619 Some(jump_data) => {
12620 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12621 if let Some(buffer) = multi_buffer_snapshot
12622 .buffer_id_for_excerpt(jump_data.excerpt_id)
12623 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12624 {
12625 let buffer_snapshot = buffer.read(cx).snapshot();
12626 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12627 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12628 } else {
12629 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12630 };
12631 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12632 new_selections_by_buffer.insert(
12633 buffer,
12634 (
12635 vec![jump_to_offset..jump_to_offset],
12636 Some(jump_data.line_offset_from_top),
12637 ),
12638 );
12639 }
12640 }
12641 None => {
12642 let selections = self.selections.all::<usize>(cx);
12643 let buffer = self.buffer.read(cx);
12644 for selection in selections {
12645 for (mut buffer_handle, mut range, _) in
12646 buffer.range_to_buffer_ranges(selection.range(), cx)
12647 {
12648 // When editing branch buffers, jump to the corresponding location
12649 // in their base buffer.
12650 let buffer = buffer_handle.read(cx);
12651 if let Some(base_buffer) = buffer.diff_base_buffer() {
12652 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12653 buffer_handle = base_buffer;
12654 }
12655
12656 if selection.reversed {
12657 mem::swap(&mut range.start, &mut range.end);
12658 }
12659 new_selections_by_buffer
12660 .entry(buffer_handle)
12661 .or_insert((Vec::new(), None))
12662 .0
12663 .push(range)
12664 }
12665 }
12666 }
12667 }
12668
12669 if new_selections_by_buffer.is_empty() {
12670 return;
12671 }
12672
12673 // We defer the pane interaction because we ourselves are a workspace item
12674 // and activating a new item causes the pane to call a method on us reentrantly,
12675 // which panics if we're on the stack.
12676 cx.window_context().defer(move |cx| {
12677 workspace.update(cx, |workspace, cx| {
12678 let pane = if split {
12679 workspace.adjacent_pane(cx)
12680 } else {
12681 workspace.active_pane().clone()
12682 };
12683
12684 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12685 let editor =
12686 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12687 editor.update(cx, |editor, cx| {
12688 let autoscroll = match scroll_offset {
12689 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12690 None => Autoscroll::newest(),
12691 };
12692 let nav_history = editor.nav_history.take();
12693 editor.change_selections(Some(autoscroll), cx, |s| {
12694 s.select_ranges(ranges);
12695 });
12696 editor.nav_history = nav_history;
12697 });
12698 }
12699 })
12700 });
12701 }
12702
12703 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12704 let snapshot = self.buffer.read(cx).read(cx);
12705 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12706 Some(
12707 ranges
12708 .iter()
12709 .map(move |range| {
12710 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12711 })
12712 .collect(),
12713 )
12714 }
12715
12716 fn selection_replacement_ranges(
12717 &self,
12718 range: Range<OffsetUtf16>,
12719 cx: &mut AppContext,
12720 ) -> Vec<Range<OffsetUtf16>> {
12721 let selections = self.selections.all::<OffsetUtf16>(cx);
12722 let newest_selection = selections
12723 .iter()
12724 .max_by_key(|selection| selection.id)
12725 .unwrap();
12726 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12727 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12728 let snapshot = self.buffer.read(cx).read(cx);
12729 selections
12730 .into_iter()
12731 .map(|mut selection| {
12732 selection.start.0 =
12733 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12734 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12735 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12736 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12737 })
12738 .collect()
12739 }
12740
12741 fn report_editor_event(
12742 &self,
12743 operation: &'static str,
12744 file_extension: Option<String>,
12745 cx: &AppContext,
12746 ) {
12747 if cfg!(any(test, feature = "test-support")) {
12748 return;
12749 }
12750
12751 let Some(project) = &self.project else { return };
12752
12753 // If None, we are in a file without an extension
12754 let file = self
12755 .buffer
12756 .read(cx)
12757 .as_singleton()
12758 .and_then(|b| b.read(cx).file());
12759 let file_extension = file_extension.or(file
12760 .as_ref()
12761 .and_then(|file| Path::new(file.file_name(cx)).extension())
12762 .and_then(|e| e.to_str())
12763 .map(|a| a.to_string()));
12764
12765 let vim_mode = cx
12766 .global::<SettingsStore>()
12767 .raw_user_settings()
12768 .get("vim_mode")
12769 == Some(&serde_json::Value::Bool(true));
12770
12771 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12772 == language::language_settings::InlineCompletionProvider::Copilot;
12773 let copilot_enabled_for_language = self
12774 .buffer
12775 .read(cx)
12776 .settings_at(0, cx)
12777 .show_inline_completions;
12778
12779 let project = project.read(cx);
12780 let telemetry = project.client().telemetry().clone();
12781 telemetry.report_editor_event(
12782 file_extension,
12783 vim_mode,
12784 operation,
12785 copilot_enabled,
12786 copilot_enabled_for_language,
12787 project.is_via_ssh(),
12788 )
12789 }
12790
12791 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12792 /// with each line being an array of {text, highlight} objects.
12793 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12794 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12795 return;
12796 };
12797
12798 #[derive(Serialize)]
12799 struct Chunk<'a> {
12800 text: String,
12801 highlight: Option<&'a str>,
12802 }
12803
12804 let snapshot = buffer.read(cx).snapshot();
12805 let range = self
12806 .selected_text_range(false, cx)
12807 .and_then(|selection| {
12808 if selection.range.is_empty() {
12809 None
12810 } else {
12811 Some(selection.range)
12812 }
12813 })
12814 .unwrap_or_else(|| 0..snapshot.len());
12815
12816 let chunks = snapshot.chunks(range, true);
12817 let mut lines = Vec::new();
12818 let mut line: VecDeque<Chunk> = VecDeque::new();
12819
12820 let Some(style) = self.style.as_ref() else {
12821 return;
12822 };
12823
12824 for chunk in chunks {
12825 let highlight = chunk
12826 .syntax_highlight_id
12827 .and_then(|id| id.name(&style.syntax));
12828 let mut chunk_lines = chunk.text.split('\n').peekable();
12829 while let Some(text) = chunk_lines.next() {
12830 let mut merged_with_last_token = false;
12831 if let Some(last_token) = line.back_mut() {
12832 if last_token.highlight == highlight {
12833 last_token.text.push_str(text);
12834 merged_with_last_token = true;
12835 }
12836 }
12837
12838 if !merged_with_last_token {
12839 line.push_back(Chunk {
12840 text: text.into(),
12841 highlight,
12842 });
12843 }
12844
12845 if chunk_lines.peek().is_some() {
12846 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12847 line.pop_front();
12848 }
12849 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12850 line.pop_back();
12851 }
12852
12853 lines.push(mem::take(&mut line));
12854 }
12855 }
12856 }
12857
12858 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12859 return;
12860 };
12861 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12862 }
12863
12864 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12865 &self.inlay_hint_cache
12866 }
12867
12868 pub fn replay_insert_event(
12869 &mut self,
12870 text: &str,
12871 relative_utf16_range: Option<Range<isize>>,
12872 cx: &mut ViewContext<Self>,
12873 ) {
12874 if !self.input_enabled {
12875 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12876 return;
12877 }
12878 if let Some(relative_utf16_range) = relative_utf16_range {
12879 let selections = self.selections.all::<OffsetUtf16>(cx);
12880 self.change_selections(None, cx, |s| {
12881 let new_ranges = selections.into_iter().map(|range| {
12882 let start = OffsetUtf16(
12883 range
12884 .head()
12885 .0
12886 .saturating_add_signed(relative_utf16_range.start),
12887 );
12888 let end = OffsetUtf16(
12889 range
12890 .head()
12891 .0
12892 .saturating_add_signed(relative_utf16_range.end),
12893 );
12894 start..end
12895 });
12896 s.select_ranges(new_ranges);
12897 });
12898 }
12899
12900 self.handle_input(text, cx);
12901 }
12902
12903 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12904 let Some(provider) = self.semantics_provider.as_ref() else {
12905 return false;
12906 };
12907
12908 let mut supports = false;
12909 self.buffer().read(cx).for_each_buffer(|buffer| {
12910 supports |= provider.supports_inlay_hints(buffer, cx);
12911 });
12912 supports
12913 }
12914
12915 pub fn focus(&self, cx: &mut WindowContext) {
12916 cx.focus(&self.focus_handle)
12917 }
12918
12919 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12920 self.focus_handle.is_focused(cx)
12921 }
12922
12923 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12924 cx.emit(EditorEvent::Focused);
12925
12926 if let Some(descendant) = self
12927 .last_focused_descendant
12928 .take()
12929 .and_then(|descendant| descendant.upgrade())
12930 {
12931 cx.focus(&descendant);
12932 } else {
12933 if let Some(blame) = self.blame.as_ref() {
12934 blame.update(cx, GitBlame::focus)
12935 }
12936
12937 self.blink_manager.update(cx, BlinkManager::enable);
12938 self.show_cursor_names(cx);
12939 self.buffer.update(cx, |buffer, cx| {
12940 buffer.finalize_last_transaction(cx);
12941 if self.leader_peer_id.is_none() {
12942 buffer.set_active_selections(
12943 &self.selections.disjoint_anchors(),
12944 self.selections.line_mode,
12945 self.cursor_shape,
12946 cx,
12947 );
12948 }
12949 });
12950 }
12951 }
12952
12953 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12954 cx.emit(EditorEvent::FocusedIn)
12955 }
12956
12957 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12958 if event.blurred != self.focus_handle {
12959 self.last_focused_descendant = Some(event.blurred);
12960 }
12961 }
12962
12963 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12964 self.blink_manager.update(cx, BlinkManager::disable);
12965 self.buffer
12966 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12967
12968 if let Some(blame) = self.blame.as_ref() {
12969 blame.update(cx, GitBlame::blur)
12970 }
12971 if !self.hover_state.focused(cx) {
12972 hide_hover(self, cx);
12973 }
12974
12975 self.hide_context_menu(cx);
12976 cx.emit(EditorEvent::Blurred);
12977 cx.notify();
12978 }
12979
12980 pub fn register_action<A: Action>(
12981 &mut self,
12982 listener: impl Fn(&A, &mut WindowContext) + 'static,
12983 ) -> Subscription {
12984 let id = self.next_editor_action_id.post_inc();
12985 let listener = Arc::new(listener);
12986 self.editor_actions.borrow_mut().insert(
12987 id,
12988 Box::new(move |cx| {
12989 let cx = cx.window_context();
12990 let listener = listener.clone();
12991 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12992 let action = action.downcast_ref().unwrap();
12993 if phase == DispatchPhase::Bubble {
12994 listener(action, cx)
12995 }
12996 })
12997 }),
12998 );
12999
13000 let editor_actions = self.editor_actions.clone();
13001 Subscription::new(move || {
13002 editor_actions.borrow_mut().remove(&id);
13003 })
13004 }
13005
13006 pub fn file_header_size(&self) -> u32 {
13007 FILE_HEADER_HEIGHT
13008 }
13009
13010 pub fn revert(
13011 &mut self,
13012 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13013 cx: &mut ViewContext<Self>,
13014 ) {
13015 self.buffer().update(cx, |multi_buffer, cx| {
13016 for (buffer_id, changes) in revert_changes {
13017 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13018 buffer.update(cx, |buffer, cx| {
13019 buffer.edit(
13020 changes.into_iter().map(|(range, text)| {
13021 (range, text.to_string().map(Arc::<str>::from))
13022 }),
13023 None,
13024 cx,
13025 );
13026 });
13027 }
13028 }
13029 });
13030 self.change_selections(None, cx, |selections| selections.refresh());
13031 }
13032
13033 pub fn to_pixel_point(
13034 &mut self,
13035 source: multi_buffer::Anchor,
13036 editor_snapshot: &EditorSnapshot,
13037 cx: &mut ViewContext<Self>,
13038 ) -> Option<gpui::Point<Pixels>> {
13039 let source_point = source.to_display_point(editor_snapshot);
13040 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13041 }
13042
13043 pub fn display_to_pixel_point(
13044 &mut self,
13045 source: DisplayPoint,
13046 editor_snapshot: &EditorSnapshot,
13047 cx: &mut ViewContext<Self>,
13048 ) -> Option<gpui::Point<Pixels>> {
13049 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13050 let text_layout_details = self.text_layout_details(cx);
13051 let scroll_top = text_layout_details
13052 .scroll_anchor
13053 .scroll_position(editor_snapshot)
13054 .y;
13055
13056 if source.row().as_f32() < scroll_top.floor() {
13057 return None;
13058 }
13059 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13060 let source_y = line_height * (source.row().as_f32() - scroll_top);
13061 Some(gpui::Point::new(source_x, source_y))
13062 }
13063
13064 pub fn has_active_completions_menu(&self) -> bool {
13065 self.context_menu.read().as_ref().map_or(false, |menu| {
13066 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13067 })
13068 }
13069
13070 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13071 self.addons
13072 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13073 }
13074
13075 pub fn unregister_addon<T: Addon>(&mut self) {
13076 self.addons.remove(&std::any::TypeId::of::<T>());
13077 }
13078
13079 pub fn addon<T: Addon>(&self) -> Option<&T> {
13080 let type_id = std::any::TypeId::of::<T>();
13081 self.addons
13082 .get(&type_id)
13083 .and_then(|item| item.to_any().downcast_ref::<T>())
13084 }
13085}
13086
13087fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13088 let tab_size = tab_size.get() as usize;
13089 let mut width = offset;
13090
13091 for ch in text.chars() {
13092 width += if ch == '\t' {
13093 tab_size - (width % tab_size)
13094 } else {
13095 1
13096 };
13097 }
13098
13099 width - offset
13100}
13101
13102#[cfg(test)]
13103mod tests {
13104 use super::*;
13105
13106 #[test]
13107 fn test_string_size_with_expanded_tabs() {
13108 let nz = |val| NonZeroU32::new(val).unwrap();
13109 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13110 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13111 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13112 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13113 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13114 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13115 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13116 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13117 }
13118}
13119
13120/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13121struct WordBreakingTokenizer<'a> {
13122 input: &'a str,
13123}
13124
13125impl<'a> WordBreakingTokenizer<'a> {
13126 fn new(input: &'a str) -> Self {
13127 Self { input }
13128 }
13129}
13130
13131fn is_char_ideographic(ch: char) -> bool {
13132 use unicode_script::Script::*;
13133 use unicode_script::UnicodeScript;
13134 matches!(ch.script(), Han | Tangut | Yi)
13135}
13136
13137fn is_grapheme_ideographic(text: &str) -> bool {
13138 text.chars().any(is_char_ideographic)
13139}
13140
13141fn is_grapheme_whitespace(text: &str) -> bool {
13142 text.chars().any(|x| x.is_whitespace())
13143}
13144
13145fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13146 text.chars().next().map_or(false, |ch| {
13147 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13148 })
13149}
13150
13151#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13152struct WordBreakToken<'a> {
13153 token: &'a str,
13154 grapheme_len: usize,
13155 is_whitespace: bool,
13156}
13157
13158impl<'a> Iterator for WordBreakingTokenizer<'a> {
13159 /// Yields a span, the count of graphemes in the token, and whether it was
13160 /// whitespace. Note that it also breaks at word boundaries.
13161 type Item = WordBreakToken<'a>;
13162
13163 fn next(&mut self) -> Option<Self::Item> {
13164 use unicode_segmentation::UnicodeSegmentation;
13165 if self.input.is_empty() {
13166 return None;
13167 }
13168
13169 let mut iter = self.input.graphemes(true).peekable();
13170 let mut offset = 0;
13171 let mut graphemes = 0;
13172 if let Some(first_grapheme) = iter.next() {
13173 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13174 offset += first_grapheme.len();
13175 graphemes += 1;
13176 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13177 if let Some(grapheme) = iter.peek().copied() {
13178 if should_stay_with_preceding_ideograph(grapheme) {
13179 offset += grapheme.len();
13180 graphemes += 1;
13181 }
13182 }
13183 } else {
13184 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13185 let mut next_word_bound = words.peek().copied();
13186 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13187 next_word_bound = words.next();
13188 }
13189 while let Some(grapheme) = iter.peek().copied() {
13190 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13191 break;
13192 };
13193 if is_grapheme_whitespace(grapheme) != is_whitespace {
13194 break;
13195 };
13196 offset += grapheme.len();
13197 graphemes += 1;
13198 iter.next();
13199 }
13200 }
13201 let token = &self.input[..offset];
13202 self.input = &self.input[offset..];
13203 if is_whitespace {
13204 Some(WordBreakToken {
13205 token: " ",
13206 grapheme_len: 1,
13207 is_whitespace: true,
13208 })
13209 } else {
13210 Some(WordBreakToken {
13211 token,
13212 grapheme_len: graphemes,
13213 is_whitespace: false,
13214 })
13215 }
13216 } else {
13217 None
13218 }
13219 }
13220}
13221
13222#[test]
13223fn test_word_breaking_tokenizer() {
13224 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13225 ("", &[]),
13226 (" ", &[(" ", 1, true)]),
13227 ("Ʒ", &[("Ʒ", 1, false)]),
13228 ("Ǽ", &[("Ǽ", 1, false)]),
13229 ("⋑", &[("⋑", 1, false)]),
13230 ("⋑⋑", &[("⋑⋑", 2, false)]),
13231 (
13232 "原理，进而",
13233 &[
13234 ("原", 1, false),
13235 ("理，", 2, false),
13236 ("进", 1, false),
13237 ("而", 1, false),
13238 ],
13239 ),
13240 (
13241 "hello world",
13242 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13243 ),
13244 (
13245 "hello, world",
13246 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13247 ),
13248 (
13249 " hello world",
13250 &[
13251 (" ", 1, true),
13252 ("hello", 5, false),
13253 (" ", 1, true),
13254 ("world", 5, false),
13255 ],
13256 ),
13257 (
13258 "这是什么 \n 钢笔",
13259 &[
13260 ("这", 1, false),
13261 ("是", 1, false),
13262 ("什", 1, false),
13263 ("么", 1, false),
13264 (" ", 1, true),
13265 ("钢", 1, false),
13266 ("笔", 1, false),
13267 ],
13268 ),
13269 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13270 ];
13271
13272 for (input, result) in tests {
13273 assert_eq!(
13274 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13275 result
13276 .iter()
13277 .copied()
13278 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13279 token,
13280 grapheme_len,
13281 is_whitespace,
13282 })
13283 .collect::<Vec<_>>()
13284 );
13285 }
13286}
13287
13288fn wrap_with_prefix(
13289 line_prefix: String,
13290 unwrapped_text: String,
13291 wrap_column: usize,
13292 tab_size: NonZeroU32,
13293) -> String {
13294 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13295 let mut wrapped_text = String::new();
13296 let mut current_line = line_prefix.clone();
13297
13298 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13299 let mut current_line_len = line_prefix_len;
13300 for WordBreakToken {
13301 token,
13302 grapheme_len,
13303 is_whitespace,
13304 } in tokenizer
13305 {
13306 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13307 wrapped_text.push_str(current_line.trim_end());
13308 wrapped_text.push('\n');
13309 current_line.truncate(line_prefix.len());
13310 current_line_len = line_prefix_len;
13311 if !is_whitespace {
13312 current_line.push_str(token);
13313 current_line_len += grapheme_len;
13314 }
13315 } else if !is_whitespace {
13316 current_line.push_str(token);
13317 current_line_len += grapheme_len;
13318 } else if current_line_len != line_prefix_len {
13319 current_line.push(' ');
13320 current_line_len += 1;
13321 }
13322 }
13323
13324 if !current_line.is_empty() {
13325 wrapped_text.push_str(¤t_line);
13326 }
13327 wrapped_text
13328}
13329
13330#[test]
13331fn test_wrap_with_prefix() {
13332 assert_eq!(
13333 wrap_with_prefix(
13334 "# ".to_string(),
13335 "abcdefg".to_string(),
13336 4,
13337 NonZeroU32::new(4).unwrap()
13338 ),
13339 "# abcdefg"
13340 );
13341 assert_eq!(
13342 wrap_with_prefix(
13343 "".to_string(),
13344 "\thello world".to_string(),
13345 8,
13346 NonZeroU32::new(4).unwrap()
13347 ),
13348 "hello\nworld"
13349 );
13350 assert_eq!(
13351 wrap_with_prefix(
13352 "// ".to_string(),
13353 "xx \nyy zz aa bb cc".to_string(),
13354 12,
13355 NonZeroU32::new(4).unwrap()
13356 ),
13357 "// xx yy zz\n// aa bb cc"
13358 );
13359 assert_eq!(
13360 wrap_with_prefix(
13361 String::new(),
13362 "这是什么 \n 钢笔".to_string(),
13363 3,
13364 NonZeroU32::new(4).unwrap()
13365 ),
13366 "这是什\n么 钢\n笔"
13367 );
13368}
13369
13370fn hunks_for_selections(
13371 multi_buffer_snapshot: &MultiBufferSnapshot,
13372 selections: &[Selection<Anchor>],
13373) -> Vec<MultiBufferDiffHunk> {
13374 let buffer_rows_for_selections = selections.iter().map(|selection| {
13375 let head = selection.head();
13376 let tail = selection.tail();
13377 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13378 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13379 if start > end {
13380 end..start
13381 } else {
13382 start..end
13383 }
13384 });
13385
13386 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13387}
13388
13389pub fn hunks_for_rows(
13390 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13391 multi_buffer_snapshot: &MultiBufferSnapshot,
13392) -> Vec<MultiBufferDiffHunk> {
13393 let mut hunks = Vec::new();
13394 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13395 HashMap::default();
13396 for selected_multi_buffer_rows in rows {
13397 let query_rows =
13398 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13399 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13400 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13401 // when the caret is just above or just below the deleted hunk.
13402 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13403 let related_to_selection = if allow_adjacent {
13404 hunk.row_range.overlaps(&query_rows)
13405 || hunk.row_range.start == query_rows.end
13406 || hunk.row_range.end == query_rows.start
13407 } else {
13408 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13409 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13410 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13411 || selected_multi_buffer_rows.end == hunk.row_range.start
13412 };
13413 if related_to_selection {
13414 if !processed_buffer_rows
13415 .entry(hunk.buffer_id)
13416 .or_default()
13417 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13418 {
13419 continue;
13420 }
13421 hunks.push(hunk);
13422 }
13423 }
13424 }
13425
13426 hunks
13427}
13428
13429pub trait CollaborationHub {
13430 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13431 fn user_participant_indices<'a>(
13432 &self,
13433 cx: &'a AppContext,
13434 ) -> &'a HashMap<u64, ParticipantIndex>;
13435 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13436}
13437
13438impl CollaborationHub for Model<Project> {
13439 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13440 self.read(cx).collaborators()
13441 }
13442
13443 fn user_participant_indices<'a>(
13444 &self,
13445 cx: &'a AppContext,
13446 ) -> &'a HashMap<u64, ParticipantIndex> {
13447 self.read(cx).user_store().read(cx).participant_indices()
13448 }
13449
13450 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13451 let this = self.read(cx);
13452 let user_ids = this.collaborators().values().map(|c| c.user_id);
13453 this.user_store().read_with(cx, |user_store, cx| {
13454 user_store.participant_names(user_ids, cx)
13455 })
13456 }
13457}
13458
13459pub trait SemanticsProvider {
13460 fn hover(
13461 &self,
13462 buffer: &Model<Buffer>,
13463 position: text::Anchor,
13464 cx: &mut AppContext,
13465 ) -> Option<Task<Vec<project::Hover>>>;
13466
13467 fn inlay_hints(
13468 &self,
13469 buffer_handle: Model<Buffer>,
13470 range: Range<text::Anchor>,
13471 cx: &mut AppContext,
13472 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13473
13474 fn resolve_inlay_hint(
13475 &self,
13476 hint: InlayHint,
13477 buffer_handle: Model<Buffer>,
13478 server_id: LanguageServerId,
13479 cx: &mut AppContext,
13480 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13481
13482 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13483
13484 fn document_highlights(
13485 &self,
13486 buffer: &Model<Buffer>,
13487 position: text::Anchor,
13488 cx: &mut AppContext,
13489 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13490
13491 fn definitions(
13492 &self,
13493 buffer: &Model<Buffer>,
13494 position: text::Anchor,
13495 kind: GotoDefinitionKind,
13496 cx: &mut AppContext,
13497 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13498
13499 fn range_for_rename(
13500 &self,
13501 buffer: &Model<Buffer>,
13502 position: text::Anchor,
13503 cx: &mut AppContext,
13504 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13505
13506 fn perform_rename(
13507 &self,
13508 buffer: &Model<Buffer>,
13509 position: text::Anchor,
13510 new_name: String,
13511 cx: &mut AppContext,
13512 ) -> Option<Task<Result<ProjectTransaction>>>;
13513}
13514
13515pub trait CompletionProvider {
13516 fn completions(
13517 &self,
13518 buffer: &Model<Buffer>,
13519 buffer_position: text::Anchor,
13520 trigger: CompletionContext,
13521 cx: &mut ViewContext<Editor>,
13522 ) -> Task<Result<Vec<Completion>>>;
13523
13524 fn resolve_completions(
13525 &self,
13526 buffer: Model<Buffer>,
13527 completion_indices: Vec<usize>,
13528 completions: Arc<RwLock<Box<[Completion]>>>,
13529 cx: &mut ViewContext<Editor>,
13530 ) -> Task<Result<bool>>;
13531
13532 fn apply_additional_edits_for_completion(
13533 &self,
13534 buffer: Model<Buffer>,
13535 completion: Completion,
13536 push_to_history: bool,
13537 cx: &mut ViewContext<Editor>,
13538 ) -> Task<Result<Option<language::Transaction>>>;
13539
13540 fn is_completion_trigger(
13541 &self,
13542 buffer: &Model<Buffer>,
13543 position: language::Anchor,
13544 text: &str,
13545 trigger_in_words: bool,
13546 cx: &mut ViewContext<Editor>,
13547 ) -> bool;
13548
13549 fn sort_completions(&self) -> bool {
13550 true
13551 }
13552}
13553
13554pub trait CodeActionProvider {
13555 fn code_actions(
13556 &self,
13557 buffer: &Model<Buffer>,
13558 range: Range<text::Anchor>,
13559 cx: &mut WindowContext,
13560 ) -> Task<Result<Vec<CodeAction>>>;
13561
13562 fn apply_code_action(
13563 &self,
13564 buffer_handle: Model<Buffer>,
13565 action: CodeAction,
13566 excerpt_id: ExcerptId,
13567 push_to_history: bool,
13568 cx: &mut WindowContext,
13569 ) -> Task<Result<ProjectTransaction>>;
13570}
13571
13572impl CodeActionProvider for Model<Project> {
13573 fn code_actions(
13574 &self,
13575 buffer: &Model<Buffer>,
13576 range: Range<text::Anchor>,
13577 cx: &mut WindowContext,
13578 ) -> Task<Result<Vec<CodeAction>>> {
13579 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13580 }
13581
13582 fn apply_code_action(
13583 &self,
13584 buffer_handle: Model<Buffer>,
13585 action: CodeAction,
13586 _excerpt_id: ExcerptId,
13587 push_to_history: bool,
13588 cx: &mut WindowContext,
13589 ) -> Task<Result<ProjectTransaction>> {
13590 self.update(cx, |project, cx| {
13591 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13592 })
13593 }
13594}
13595
13596fn snippet_completions(
13597 project: &Project,
13598 buffer: &Model<Buffer>,
13599 buffer_position: text::Anchor,
13600 cx: &mut AppContext,
13601) -> Vec<Completion> {
13602 let language = buffer.read(cx).language_at(buffer_position);
13603 let language_name = language.as_ref().map(|language| language.lsp_id());
13604 let snippet_store = project.snippets().read(cx);
13605 let snippets = snippet_store.snippets_for(language_name, cx);
13606
13607 if snippets.is_empty() {
13608 return vec![];
13609 }
13610 let snapshot = buffer.read(cx).text_snapshot();
13611 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13612
13613 let scope = language.map(|language| language.default_scope());
13614 let classifier = CharClassifier::new(scope).for_completion(true);
13615 let mut last_word = chars
13616 .take_while(|c| classifier.is_word(*c))
13617 .collect::<String>();
13618 last_word = last_word.chars().rev().collect();
13619 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13620 let to_lsp = |point: &text::Anchor| {
13621 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13622 point_to_lsp(end)
13623 };
13624 let lsp_end = to_lsp(&buffer_position);
13625 snippets
13626 .into_iter()
13627 .filter_map(|snippet| {
13628 let matching_prefix = snippet
13629 .prefix
13630 .iter()
13631 .find(|prefix| prefix.starts_with(&last_word))?;
13632 let start = as_offset - last_word.len();
13633 let start = snapshot.anchor_before(start);
13634 let range = start..buffer_position;
13635 let lsp_start = to_lsp(&start);
13636 let lsp_range = lsp::Range {
13637 start: lsp_start,
13638 end: lsp_end,
13639 };
13640 Some(Completion {
13641 old_range: range,
13642 new_text: snippet.body.clone(),
13643 label: CodeLabel {
13644 text: matching_prefix.clone(),
13645 runs: vec![],
13646 filter_range: 0..matching_prefix.len(),
13647 },
13648 server_id: LanguageServerId(usize::MAX),
13649 documentation: snippet.description.clone().map(Documentation::SingleLine),
13650 lsp_completion: lsp::CompletionItem {
13651 label: snippet.prefix.first().unwrap().clone(),
13652 kind: Some(CompletionItemKind::SNIPPET),
13653 label_details: snippet.description.as_ref().map(|description| {
13654 lsp::CompletionItemLabelDetails {
13655 detail: Some(description.clone()),
13656 description: None,
13657 }
13658 }),
13659 insert_text_format: Some(InsertTextFormat::SNIPPET),
13660 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13661 lsp::InsertReplaceEdit {
13662 new_text: snippet.body.clone(),
13663 insert: lsp_range,
13664 replace: lsp_range,
13665 },
13666 )),
13667 filter_text: Some(snippet.body.clone()),
13668 sort_text: Some(char::MAX.to_string()),
13669 ..Default::default()
13670 },
13671 confirm: None,
13672 })
13673 })
13674 .collect()
13675}
13676
13677impl CompletionProvider for Model<Project> {
13678 fn completions(
13679 &self,
13680 buffer: &Model<Buffer>,
13681 buffer_position: text::Anchor,
13682 options: CompletionContext,
13683 cx: &mut ViewContext<Editor>,
13684 ) -> Task<Result<Vec<Completion>>> {
13685 self.update(cx, |project, cx| {
13686 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13687 let project_completions = project.completions(buffer, buffer_position, options, cx);
13688 cx.background_executor().spawn(async move {
13689 let mut completions = project_completions.await?;
13690 //let snippets = snippets.into_iter().;
13691 completions.extend(snippets);
13692 Ok(completions)
13693 })
13694 })
13695 }
13696
13697 fn resolve_completions(
13698 &self,
13699 buffer: Model<Buffer>,
13700 completion_indices: Vec<usize>,
13701 completions: Arc<RwLock<Box<[Completion]>>>,
13702 cx: &mut ViewContext<Editor>,
13703 ) -> Task<Result<bool>> {
13704 self.update(cx, |project, cx| {
13705 project.resolve_completions(buffer, completion_indices, completions, cx)
13706 })
13707 }
13708
13709 fn apply_additional_edits_for_completion(
13710 &self,
13711 buffer: Model<Buffer>,
13712 completion: Completion,
13713 push_to_history: bool,
13714 cx: &mut ViewContext<Editor>,
13715 ) -> Task<Result<Option<language::Transaction>>> {
13716 self.update(cx, |project, cx| {
13717 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13718 })
13719 }
13720
13721 fn is_completion_trigger(
13722 &self,
13723 buffer: &Model<Buffer>,
13724 position: language::Anchor,
13725 text: &str,
13726 trigger_in_words: bool,
13727 cx: &mut ViewContext<Editor>,
13728 ) -> bool {
13729 if !EditorSettings::get_global(cx).show_completions_on_input {
13730 return false;
13731 }
13732
13733 let mut chars = text.chars();
13734 let char = if let Some(char) = chars.next() {
13735 char
13736 } else {
13737 return false;
13738 };
13739 if chars.next().is_some() {
13740 return false;
13741 }
13742
13743 let buffer = buffer.read(cx);
13744 let classifier = buffer
13745 .snapshot()
13746 .char_classifier_at(position)
13747 .for_completion(true);
13748 if trigger_in_words && classifier.is_word(char) {
13749 return true;
13750 }
13751
13752 buffer.completion_triggers().contains(text)
13753 }
13754}
13755
13756impl SemanticsProvider for Model<Project> {
13757 fn hover(
13758 &self,
13759 buffer: &Model<Buffer>,
13760 position: text::Anchor,
13761 cx: &mut AppContext,
13762 ) -> Option<Task<Vec<project::Hover>>> {
13763 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13764 }
13765
13766 fn document_highlights(
13767 &self,
13768 buffer: &Model<Buffer>,
13769 position: text::Anchor,
13770 cx: &mut AppContext,
13771 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13772 Some(self.update(cx, |project, cx| {
13773 project.document_highlights(buffer, position, cx)
13774 }))
13775 }
13776
13777 fn definitions(
13778 &self,
13779 buffer: &Model<Buffer>,
13780 position: text::Anchor,
13781 kind: GotoDefinitionKind,
13782 cx: &mut AppContext,
13783 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13784 Some(self.update(cx, |project, cx| match kind {
13785 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13786 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13787 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13788 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13789 }))
13790 }
13791
13792 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13793 // TODO: make this work for remote projects
13794 self.read(cx)
13795 .language_servers_for_buffer(buffer.read(cx), cx)
13796 .any(
13797 |(_, server)| match server.capabilities().inlay_hint_provider {
13798 Some(lsp::OneOf::Left(enabled)) => enabled,
13799 Some(lsp::OneOf::Right(_)) => true,
13800 None => false,
13801 },
13802 )
13803 }
13804
13805 fn inlay_hints(
13806 &self,
13807 buffer_handle: Model<Buffer>,
13808 range: Range<text::Anchor>,
13809 cx: &mut AppContext,
13810 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13811 Some(self.update(cx, |project, cx| {
13812 project.inlay_hints(buffer_handle, range, cx)
13813 }))
13814 }
13815
13816 fn resolve_inlay_hint(
13817 &self,
13818 hint: InlayHint,
13819 buffer_handle: Model<Buffer>,
13820 server_id: LanguageServerId,
13821 cx: &mut AppContext,
13822 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13823 Some(self.update(cx, |project, cx| {
13824 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13825 }))
13826 }
13827
13828 fn range_for_rename(
13829 &self,
13830 buffer: &Model<Buffer>,
13831 position: text::Anchor,
13832 cx: &mut AppContext,
13833 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13834 Some(self.update(cx, |project, cx| {
13835 project.prepare_rename(buffer.clone(), position, cx)
13836 }))
13837 }
13838
13839 fn perform_rename(
13840 &self,
13841 buffer: &Model<Buffer>,
13842 position: text::Anchor,
13843 new_name: String,
13844 cx: &mut AppContext,
13845 ) -> Option<Task<Result<ProjectTransaction>>> {
13846 Some(self.update(cx, |project, cx| {
13847 project.perform_rename(buffer.clone(), position, new_name, cx)
13848 }))
13849 }
13850}
13851
13852fn inlay_hint_settings(
13853 location: Anchor,
13854 snapshot: &MultiBufferSnapshot,
13855 cx: &mut ViewContext<'_, Editor>,
13856) -> InlayHintSettings {
13857 let file = snapshot.file_at(location);
13858 let language = snapshot.language_at(location).map(|l| l.name());
13859 language_settings(language, file, cx).inlay_hints
13860}
13861
13862fn consume_contiguous_rows(
13863 contiguous_row_selections: &mut Vec<Selection<Point>>,
13864 selection: &Selection<Point>,
13865 display_map: &DisplaySnapshot,
13866 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13867) -> (MultiBufferRow, MultiBufferRow) {
13868 contiguous_row_selections.push(selection.clone());
13869 let start_row = MultiBufferRow(selection.start.row);
13870 let mut end_row = ending_row(selection, display_map);
13871
13872 while let Some(next_selection) = selections.peek() {
13873 if next_selection.start.row <= end_row.0 {
13874 end_row = ending_row(next_selection, display_map);
13875 contiguous_row_selections.push(selections.next().unwrap().clone());
13876 } else {
13877 break;
13878 }
13879 }
13880 (start_row, end_row)
13881}
13882
13883fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13884 if next_selection.end.column > 0 || next_selection.is_empty() {
13885 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13886 } else {
13887 MultiBufferRow(next_selection.end.row)
13888 }
13889}
13890
13891impl EditorSnapshot {
13892 pub fn remote_selections_in_range<'a>(
13893 &'a self,
13894 range: &'a Range<Anchor>,
13895 collaboration_hub: &dyn CollaborationHub,
13896 cx: &'a AppContext,
13897 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13898 let participant_names = collaboration_hub.user_names(cx);
13899 let participant_indices = collaboration_hub.user_participant_indices(cx);
13900 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13901 let collaborators_by_replica_id = collaborators_by_peer_id
13902 .iter()
13903 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13904 .collect::<HashMap<_, _>>();
13905 self.buffer_snapshot
13906 .selections_in_range(range, false)
13907 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13908 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13909 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13910 let user_name = participant_names.get(&collaborator.user_id).cloned();
13911 Some(RemoteSelection {
13912 replica_id,
13913 selection,
13914 cursor_shape,
13915 line_mode,
13916 participant_index,
13917 peer_id: collaborator.peer_id,
13918 user_name,
13919 })
13920 })
13921 }
13922
13923 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13924 self.display_snapshot.buffer_snapshot.language_at(position)
13925 }
13926
13927 pub fn is_focused(&self) -> bool {
13928 self.is_focused
13929 }
13930
13931 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13932 self.placeholder_text.as_ref()
13933 }
13934
13935 pub fn scroll_position(&self) -> gpui::Point<f32> {
13936 self.scroll_anchor.scroll_position(&self.display_snapshot)
13937 }
13938
13939 fn gutter_dimensions(
13940 &self,
13941 font_id: FontId,
13942 font_size: Pixels,
13943 em_width: Pixels,
13944 em_advance: Pixels,
13945 max_line_number_width: Pixels,
13946 cx: &AppContext,
13947 ) -> GutterDimensions {
13948 if !self.show_gutter {
13949 return GutterDimensions::default();
13950 }
13951 let descent = cx.text_system().descent(font_id, font_size);
13952
13953 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13954 matches!(
13955 ProjectSettings::get_global(cx).git.git_gutter,
13956 Some(GitGutterSetting::TrackedFiles)
13957 )
13958 });
13959 let gutter_settings = EditorSettings::get_global(cx).gutter;
13960 let show_line_numbers = self
13961 .show_line_numbers
13962 .unwrap_or(gutter_settings.line_numbers);
13963 let line_gutter_width = if show_line_numbers {
13964 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13965 let min_width_for_number_on_gutter = em_advance * 4.0;
13966 max_line_number_width.max(min_width_for_number_on_gutter)
13967 } else {
13968 0.0.into()
13969 };
13970
13971 let show_code_actions = self
13972 .show_code_actions
13973 .unwrap_or(gutter_settings.code_actions);
13974
13975 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13976
13977 let git_blame_entries_width =
13978 self.git_blame_gutter_max_author_length
13979 .map(|max_author_length| {
13980 // Length of the author name, but also space for the commit hash,
13981 // the spacing and the timestamp.
13982 let max_char_count = max_author_length
13983 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13984 + 7 // length of commit sha
13985 + 14 // length of max relative timestamp ("60 minutes ago")
13986 + 4; // gaps and margins
13987
13988 em_advance * max_char_count
13989 });
13990
13991 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13992 left_padding += if show_code_actions || show_runnables {
13993 em_width * 3.0
13994 } else if show_git_gutter && show_line_numbers {
13995 em_width * 2.0
13996 } else if show_git_gutter || show_line_numbers {
13997 em_width
13998 } else {
13999 px(0.)
14000 };
14001
14002 let right_padding = if gutter_settings.folds && show_line_numbers {
14003 em_width * 4.0
14004 } else if gutter_settings.folds {
14005 em_width * 3.0
14006 } else if show_line_numbers {
14007 em_width
14008 } else {
14009 px(0.)
14010 };
14011
14012 GutterDimensions {
14013 left_padding,
14014 right_padding,
14015 width: line_gutter_width + left_padding + right_padding,
14016 margin: -descent,
14017 git_blame_entries_width,
14018 }
14019 }
14020
14021 pub fn render_fold_toggle(
14022 &self,
14023 buffer_row: MultiBufferRow,
14024 row_contains_cursor: bool,
14025 editor: View<Editor>,
14026 cx: &mut WindowContext,
14027 ) -> Option<AnyElement> {
14028 let folded = self.is_line_folded(buffer_row);
14029
14030 if let Some(crease) = self
14031 .crease_snapshot
14032 .query_row(buffer_row, &self.buffer_snapshot)
14033 {
14034 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14035 if folded {
14036 editor.update(cx, |editor, cx| {
14037 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14038 });
14039 } else {
14040 editor.update(cx, |editor, cx| {
14041 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14042 });
14043 }
14044 });
14045
14046 Some((crease.render_toggle)(
14047 buffer_row,
14048 folded,
14049 toggle_callback,
14050 cx,
14051 ))
14052 } else if folded
14053 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
14054 {
14055 Some(
14056 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
14057 .selected(folded)
14058 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14059 if folded {
14060 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14061 } else {
14062 this.fold_at(&FoldAt { buffer_row }, cx);
14063 }
14064 }))
14065 .into_any_element(),
14066 )
14067 } else {
14068 None
14069 }
14070 }
14071
14072 pub fn render_crease_trailer(
14073 &self,
14074 buffer_row: MultiBufferRow,
14075 cx: &mut WindowContext,
14076 ) -> Option<AnyElement> {
14077 let folded = self.is_line_folded(buffer_row);
14078 let crease = self
14079 .crease_snapshot
14080 .query_row(buffer_row, &self.buffer_snapshot)?;
14081 Some((crease.render_trailer)(buffer_row, folded, cx))
14082 }
14083}
14084
14085impl Deref for EditorSnapshot {
14086 type Target = DisplaySnapshot;
14087
14088 fn deref(&self) -> &Self::Target {
14089 &self.display_snapshot
14090 }
14091}
14092
14093#[derive(Clone, Debug, PartialEq, Eq)]
14094pub enum EditorEvent {
14095 InputIgnored {
14096 text: Arc<str>,
14097 },
14098 InputHandled {
14099 utf16_range_to_replace: Option<Range<isize>>,
14100 text: Arc<str>,
14101 },
14102 ExcerptsAdded {
14103 buffer: Model<Buffer>,
14104 predecessor: ExcerptId,
14105 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14106 },
14107 ExcerptsRemoved {
14108 ids: Vec<ExcerptId>,
14109 },
14110 ExcerptsEdited {
14111 ids: Vec<ExcerptId>,
14112 },
14113 ExcerptsExpanded {
14114 ids: Vec<ExcerptId>,
14115 },
14116 BufferEdited,
14117 Edited {
14118 transaction_id: clock::Lamport,
14119 },
14120 Reparsed(BufferId),
14121 Focused,
14122 FocusedIn,
14123 Blurred,
14124 DirtyChanged,
14125 Saved,
14126 TitleChanged,
14127 DiffBaseChanged,
14128 SelectionsChanged {
14129 local: bool,
14130 },
14131 ScrollPositionChanged {
14132 local: bool,
14133 autoscroll: bool,
14134 },
14135 Closed,
14136 TransactionUndone {
14137 transaction_id: clock::Lamport,
14138 },
14139 TransactionBegun {
14140 transaction_id: clock::Lamport,
14141 },
14142 Reloaded,
14143 CursorShapeChanged,
14144}
14145
14146impl EventEmitter<EditorEvent> for Editor {}
14147
14148impl FocusableView for Editor {
14149 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14150 self.focus_handle.clone()
14151 }
14152}
14153
14154impl Render for Editor {
14155 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14156 let settings = ThemeSettings::get_global(cx);
14157
14158 let mut text_style = match self.mode {
14159 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14160 color: cx.theme().colors().editor_foreground,
14161 font_family: settings.ui_font.family.clone(),
14162 font_features: settings.ui_font.features.clone(),
14163 font_fallbacks: settings.ui_font.fallbacks.clone(),
14164 font_size: rems(0.875).into(),
14165 font_weight: settings.ui_font.weight,
14166 line_height: relative(settings.buffer_line_height.value()),
14167 ..Default::default()
14168 },
14169 EditorMode::Full => TextStyle {
14170 color: cx.theme().colors().editor_foreground,
14171 font_family: settings.buffer_font.family.clone(),
14172 font_features: settings.buffer_font.features.clone(),
14173 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14174 font_size: settings.buffer_font_size(cx).into(),
14175 font_weight: settings.buffer_font.weight,
14176 line_height: relative(settings.buffer_line_height.value()),
14177 ..Default::default()
14178 },
14179 };
14180 if let Some(text_style_refinement) = &self.text_style_refinement {
14181 text_style.refine(text_style_refinement)
14182 }
14183
14184 let background = match self.mode {
14185 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14186 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14187 EditorMode::Full => cx.theme().colors().editor_background,
14188 };
14189
14190 EditorElement::new(
14191 cx.view(),
14192 EditorStyle {
14193 background,
14194 local_player: cx.theme().players().local(),
14195 text: text_style,
14196 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14197 syntax: cx.theme().syntax().clone(),
14198 status: cx.theme().status().clone(),
14199 inlay_hints_style: make_inlay_hints_style(cx),
14200 suggestions_style: HighlightStyle {
14201 color: Some(cx.theme().status().predictive),
14202 ..HighlightStyle::default()
14203 },
14204 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14205 },
14206 )
14207 }
14208}
14209
14210impl ViewInputHandler for Editor {
14211 fn text_for_range(
14212 &mut self,
14213 range_utf16: Range<usize>,
14214 cx: &mut ViewContext<Self>,
14215 ) -> Option<String> {
14216 Some(
14217 self.buffer
14218 .read(cx)
14219 .read(cx)
14220 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
14221 .collect(),
14222 )
14223 }
14224
14225 fn selected_text_range(
14226 &mut self,
14227 ignore_disabled_input: bool,
14228 cx: &mut ViewContext<Self>,
14229 ) -> Option<UTF16Selection> {
14230 // Prevent the IME menu from appearing when holding down an alphabetic key
14231 // while input is disabled.
14232 if !ignore_disabled_input && !self.input_enabled {
14233 return None;
14234 }
14235
14236 let selection = self.selections.newest::<OffsetUtf16>(cx);
14237 let range = selection.range();
14238
14239 Some(UTF16Selection {
14240 range: range.start.0..range.end.0,
14241 reversed: selection.reversed,
14242 })
14243 }
14244
14245 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14246 let snapshot = self.buffer.read(cx).read(cx);
14247 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14248 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14249 }
14250
14251 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14252 self.clear_highlights::<InputComposition>(cx);
14253 self.ime_transaction.take();
14254 }
14255
14256 fn replace_text_in_range(
14257 &mut self,
14258 range_utf16: Option<Range<usize>>,
14259 text: &str,
14260 cx: &mut ViewContext<Self>,
14261 ) {
14262 if !self.input_enabled {
14263 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14264 return;
14265 }
14266
14267 self.transact(cx, |this, cx| {
14268 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14269 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14270 Some(this.selection_replacement_ranges(range_utf16, cx))
14271 } else {
14272 this.marked_text_ranges(cx)
14273 };
14274
14275 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14276 let newest_selection_id = this.selections.newest_anchor().id;
14277 this.selections
14278 .all::<OffsetUtf16>(cx)
14279 .iter()
14280 .zip(ranges_to_replace.iter())
14281 .find_map(|(selection, range)| {
14282 if selection.id == newest_selection_id {
14283 Some(
14284 (range.start.0 as isize - selection.head().0 as isize)
14285 ..(range.end.0 as isize - selection.head().0 as isize),
14286 )
14287 } else {
14288 None
14289 }
14290 })
14291 });
14292
14293 cx.emit(EditorEvent::InputHandled {
14294 utf16_range_to_replace: range_to_replace,
14295 text: text.into(),
14296 });
14297
14298 if let Some(new_selected_ranges) = new_selected_ranges {
14299 this.change_selections(None, cx, |selections| {
14300 selections.select_ranges(new_selected_ranges)
14301 });
14302 this.backspace(&Default::default(), cx);
14303 }
14304
14305 this.handle_input(text, cx);
14306 });
14307
14308 if let Some(transaction) = self.ime_transaction {
14309 self.buffer.update(cx, |buffer, cx| {
14310 buffer.group_until_transaction(transaction, cx);
14311 });
14312 }
14313
14314 self.unmark_text(cx);
14315 }
14316
14317 fn replace_and_mark_text_in_range(
14318 &mut self,
14319 range_utf16: Option<Range<usize>>,
14320 text: &str,
14321 new_selected_range_utf16: Option<Range<usize>>,
14322 cx: &mut ViewContext<Self>,
14323 ) {
14324 if !self.input_enabled {
14325 return;
14326 }
14327
14328 let transaction = self.transact(cx, |this, cx| {
14329 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14330 let snapshot = this.buffer.read(cx).read(cx);
14331 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14332 for marked_range in &mut marked_ranges {
14333 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14334 marked_range.start.0 += relative_range_utf16.start;
14335 marked_range.start =
14336 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14337 marked_range.end =
14338 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14339 }
14340 }
14341 Some(marked_ranges)
14342 } else if let Some(range_utf16) = range_utf16 {
14343 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14344 Some(this.selection_replacement_ranges(range_utf16, cx))
14345 } else {
14346 None
14347 };
14348
14349 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14350 let newest_selection_id = this.selections.newest_anchor().id;
14351 this.selections
14352 .all::<OffsetUtf16>(cx)
14353 .iter()
14354 .zip(ranges_to_replace.iter())
14355 .find_map(|(selection, range)| {
14356 if selection.id == newest_selection_id {
14357 Some(
14358 (range.start.0 as isize - selection.head().0 as isize)
14359 ..(range.end.0 as isize - selection.head().0 as isize),
14360 )
14361 } else {
14362 None
14363 }
14364 })
14365 });
14366
14367 cx.emit(EditorEvent::InputHandled {
14368 utf16_range_to_replace: range_to_replace,
14369 text: text.into(),
14370 });
14371
14372 if let Some(ranges) = ranges_to_replace {
14373 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14374 }
14375
14376 let marked_ranges = {
14377 let snapshot = this.buffer.read(cx).read(cx);
14378 this.selections
14379 .disjoint_anchors()
14380 .iter()
14381 .map(|selection| {
14382 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14383 })
14384 .collect::<Vec<_>>()
14385 };
14386
14387 if text.is_empty() {
14388 this.unmark_text(cx);
14389 } else {
14390 this.highlight_text::<InputComposition>(
14391 marked_ranges.clone(),
14392 HighlightStyle {
14393 underline: Some(UnderlineStyle {
14394 thickness: px(1.),
14395 color: None,
14396 wavy: false,
14397 }),
14398 ..Default::default()
14399 },
14400 cx,
14401 );
14402 }
14403
14404 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14405 let use_autoclose = this.use_autoclose;
14406 let use_auto_surround = this.use_auto_surround;
14407 this.set_use_autoclose(false);
14408 this.set_use_auto_surround(false);
14409 this.handle_input(text, cx);
14410 this.set_use_autoclose(use_autoclose);
14411 this.set_use_auto_surround(use_auto_surround);
14412
14413 if let Some(new_selected_range) = new_selected_range_utf16 {
14414 let snapshot = this.buffer.read(cx).read(cx);
14415 let new_selected_ranges = marked_ranges
14416 .into_iter()
14417 .map(|marked_range| {
14418 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14419 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14420 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14421 snapshot.clip_offset_utf16(new_start, Bias::Left)
14422 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14423 })
14424 .collect::<Vec<_>>();
14425
14426 drop(snapshot);
14427 this.change_selections(None, cx, |selections| {
14428 selections.select_ranges(new_selected_ranges)
14429 });
14430 }
14431 });
14432
14433 self.ime_transaction = self.ime_transaction.or(transaction);
14434 if let Some(transaction) = self.ime_transaction {
14435 self.buffer.update(cx, |buffer, cx| {
14436 buffer.group_until_transaction(transaction, cx);
14437 });
14438 }
14439
14440 if self.text_highlights::<InputComposition>(cx).is_none() {
14441 self.ime_transaction.take();
14442 }
14443 }
14444
14445 fn bounds_for_range(
14446 &mut self,
14447 range_utf16: Range<usize>,
14448 element_bounds: gpui::Bounds<Pixels>,
14449 cx: &mut ViewContext<Self>,
14450 ) -> Option<gpui::Bounds<Pixels>> {
14451 let text_layout_details = self.text_layout_details(cx);
14452 let style = &text_layout_details.editor_style;
14453 let font_id = cx.text_system().resolve_font(&style.text.font());
14454 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14455 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14456
14457 let em_width = cx
14458 .text_system()
14459 .typographic_bounds(font_id, font_size, 'm')
14460 .unwrap()
14461 .size
14462 .width;
14463
14464 let snapshot = self.snapshot(cx);
14465 let scroll_position = snapshot.scroll_position();
14466 let scroll_left = scroll_position.x * em_width;
14467
14468 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14469 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14470 + self.gutter_dimensions.width;
14471 let y = line_height * (start.row().as_f32() - scroll_position.y);
14472
14473 Some(Bounds {
14474 origin: element_bounds.origin + point(x, y),
14475 size: size(em_width, line_height),
14476 })
14477 }
14478}
14479
14480trait SelectionExt {
14481 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14482 fn spanned_rows(
14483 &self,
14484 include_end_if_at_line_start: bool,
14485 map: &DisplaySnapshot,
14486 ) -> Range<MultiBufferRow>;
14487}
14488
14489impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14490 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14491 let start = self
14492 .start
14493 .to_point(&map.buffer_snapshot)
14494 .to_display_point(map);
14495 let end = self
14496 .end
14497 .to_point(&map.buffer_snapshot)
14498 .to_display_point(map);
14499 if self.reversed {
14500 end..start
14501 } else {
14502 start..end
14503 }
14504 }
14505
14506 fn spanned_rows(
14507 &self,
14508 include_end_if_at_line_start: bool,
14509 map: &DisplaySnapshot,
14510 ) -> Range<MultiBufferRow> {
14511 let start = self.start.to_point(&map.buffer_snapshot);
14512 let mut end = self.end.to_point(&map.buffer_snapshot);
14513 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14514 end.row -= 1;
14515 }
14516
14517 let buffer_start = map.prev_line_boundary(start).0;
14518 let buffer_end = map.next_line_boundary(end).0;
14519 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14520 }
14521}
14522
14523impl<T: InvalidationRegion> InvalidationStack<T> {
14524 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14525 where
14526 S: Clone + ToOffset,
14527 {
14528 while let Some(region) = self.last() {
14529 let all_selections_inside_invalidation_ranges =
14530 if selections.len() == region.ranges().len() {
14531 selections
14532 .iter()
14533 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14534 .all(|(selection, invalidation_range)| {
14535 let head = selection.head().to_offset(buffer);
14536 invalidation_range.start <= head && invalidation_range.end >= head
14537 })
14538 } else {
14539 false
14540 };
14541
14542 if all_selections_inside_invalidation_ranges {
14543 break;
14544 } else {
14545 self.pop();
14546 }
14547 }
14548 }
14549}
14550
14551impl<T> Default for InvalidationStack<T> {
14552 fn default() -> Self {
14553 Self(Default::default())
14554 }
14555}
14556
14557impl<T> Deref for InvalidationStack<T> {
14558 type Target = Vec<T>;
14559
14560 fn deref(&self) -> &Self::Target {
14561 &self.0
14562 }
14563}
14564
14565impl<T> DerefMut for InvalidationStack<T> {
14566 fn deref_mut(&mut self) -> &mut Self::Target {
14567 &mut self.0
14568 }
14569}
14570
14571impl InvalidationRegion for SnippetState {
14572 fn ranges(&self) -> &[Range<Anchor>] {
14573 &self.ranges[self.active_index]
14574 }
14575}
14576
14577pub fn diagnostic_block_renderer(
14578 diagnostic: Diagnostic,
14579 max_message_rows: Option<u8>,
14580 allow_closing: bool,
14581 _is_valid: bool,
14582) -> RenderBlock {
14583 let (text_without_backticks, code_ranges) =
14584 highlight_diagnostic_message(&diagnostic, max_message_rows);
14585
14586 Box::new(move |cx: &mut BlockContext| {
14587 let group_id: SharedString = cx.block_id.to_string().into();
14588
14589 let mut text_style = cx.text_style().clone();
14590 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14591 let theme_settings = ThemeSettings::get_global(cx);
14592 text_style.font_family = theme_settings.buffer_font.family.clone();
14593 text_style.font_style = theme_settings.buffer_font.style;
14594 text_style.font_features = theme_settings.buffer_font.features.clone();
14595 text_style.font_weight = theme_settings.buffer_font.weight;
14596
14597 let multi_line_diagnostic = diagnostic.message.contains('\n');
14598
14599 let buttons = |diagnostic: &Diagnostic| {
14600 if multi_line_diagnostic {
14601 v_flex()
14602 } else {
14603 h_flex()
14604 }
14605 .when(allow_closing, |div| {
14606 div.children(diagnostic.is_primary.then(|| {
14607 IconButton::new("close-block", IconName::XCircle)
14608 .icon_color(Color::Muted)
14609 .size(ButtonSize::Compact)
14610 .style(ButtonStyle::Transparent)
14611 .visible_on_hover(group_id.clone())
14612 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14613 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14614 }))
14615 })
14616 .child(
14617 IconButton::new("copy-block", IconName::Copy)
14618 .icon_color(Color::Muted)
14619 .size(ButtonSize::Compact)
14620 .style(ButtonStyle::Transparent)
14621 .visible_on_hover(group_id.clone())
14622 .on_click({
14623 let message = diagnostic.message.clone();
14624 move |_click, cx| {
14625 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14626 }
14627 })
14628 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14629 )
14630 };
14631
14632 let icon_size = buttons(&diagnostic)
14633 .into_any_element()
14634 .layout_as_root(AvailableSpace::min_size(), cx);
14635
14636 h_flex()
14637 .id(cx.block_id)
14638 .group(group_id.clone())
14639 .relative()
14640 .size_full()
14641 .pl(cx.gutter_dimensions.width)
14642 .w(cx.max_width - cx.gutter_dimensions.full_width())
14643 .child(
14644 div()
14645 .flex()
14646 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14647 .flex_shrink(),
14648 )
14649 .child(buttons(&diagnostic))
14650 .child(div().flex().flex_shrink_0().child(
14651 StyledText::new(text_without_backticks.clone()).with_highlights(
14652 &text_style,
14653 code_ranges.iter().map(|range| {
14654 (
14655 range.clone(),
14656 HighlightStyle {
14657 font_weight: Some(FontWeight::BOLD),
14658 ..Default::default()
14659 },
14660 )
14661 }),
14662 ),
14663 ))
14664 .into_any_element()
14665 })
14666}
14667
14668pub fn highlight_diagnostic_message(
14669 diagnostic: &Diagnostic,
14670 mut max_message_rows: Option<u8>,
14671) -> (SharedString, Vec<Range<usize>>) {
14672 let mut text_without_backticks = String::new();
14673 let mut code_ranges = Vec::new();
14674
14675 if let Some(source) = &diagnostic.source {
14676 text_without_backticks.push_str(source);
14677 code_ranges.push(0..source.len());
14678 text_without_backticks.push_str(": ");
14679 }
14680
14681 let mut prev_offset = 0;
14682 let mut in_code_block = false;
14683 let has_row_limit = max_message_rows.is_some();
14684 let mut newline_indices = diagnostic
14685 .message
14686 .match_indices('\n')
14687 .filter(|_| has_row_limit)
14688 .map(|(ix, _)| ix)
14689 .fuse()
14690 .peekable();
14691
14692 for (quote_ix, _) in diagnostic
14693 .message
14694 .match_indices('`')
14695 .chain([(diagnostic.message.len(), "")])
14696 {
14697 let mut first_newline_ix = None;
14698 let mut last_newline_ix = None;
14699 while let Some(newline_ix) = newline_indices.peek() {
14700 if *newline_ix < quote_ix {
14701 if first_newline_ix.is_none() {
14702 first_newline_ix = Some(*newline_ix);
14703 }
14704 last_newline_ix = Some(*newline_ix);
14705
14706 if let Some(rows_left) = &mut max_message_rows {
14707 if *rows_left == 0 {
14708 break;
14709 } else {
14710 *rows_left -= 1;
14711 }
14712 }
14713 let _ = newline_indices.next();
14714 } else {
14715 break;
14716 }
14717 }
14718 let prev_len = text_without_backticks.len();
14719 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14720 text_without_backticks.push_str(new_text);
14721 if in_code_block {
14722 code_ranges.push(prev_len..text_without_backticks.len());
14723 }
14724 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14725 in_code_block = !in_code_block;
14726 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14727 text_without_backticks.push_str("...");
14728 break;
14729 }
14730 }
14731
14732 (text_without_backticks.into(), code_ranges)
14733}
14734
14735fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14736 match severity {
14737 DiagnosticSeverity::ERROR => colors.error,
14738 DiagnosticSeverity::WARNING => colors.warning,
14739 DiagnosticSeverity::INFORMATION => colors.info,
14740 DiagnosticSeverity::HINT => colors.info,
14741 _ => colors.ignored,
14742 }
14743}
14744
14745pub fn styled_runs_for_code_label<'a>(
14746 label: &'a CodeLabel,
14747 syntax_theme: &'a theme::SyntaxTheme,
14748) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14749 let fade_out = HighlightStyle {
14750 fade_out: Some(0.35),
14751 ..Default::default()
14752 };
14753
14754 let mut prev_end = label.filter_range.end;
14755 label
14756 .runs
14757 .iter()
14758 .enumerate()
14759 .flat_map(move |(ix, (range, highlight_id))| {
14760 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14761 style
14762 } else {
14763 return Default::default();
14764 };
14765 let mut muted_style = style;
14766 muted_style.highlight(fade_out);
14767
14768 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14769 if range.start >= label.filter_range.end {
14770 if range.start > prev_end {
14771 runs.push((prev_end..range.start, fade_out));
14772 }
14773 runs.push((range.clone(), muted_style));
14774 } else if range.end <= label.filter_range.end {
14775 runs.push((range.clone(), style));
14776 } else {
14777 runs.push((range.start..label.filter_range.end, style));
14778 runs.push((label.filter_range.end..range.end, muted_style));
14779 }
14780 prev_end = cmp::max(prev_end, range.end);
14781
14782 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14783 runs.push((prev_end..label.text.len(), fade_out));
14784 }
14785
14786 runs
14787 })
14788}
14789
14790pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14791 let mut prev_index = 0;
14792 let mut prev_codepoint: Option<char> = None;
14793 text.char_indices()
14794 .chain([(text.len(), '\0')])
14795 .filter_map(move |(index, codepoint)| {
14796 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14797 let is_boundary = index == text.len()
14798 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14799 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14800 if is_boundary {
14801 let chunk = &text[prev_index..index];
14802 prev_index = index;
14803 Some(chunk)
14804 } else {
14805 None
14806 }
14807 })
14808}
14809
14810pub trait RangeToAnchorExt: Sized {
14811 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14812
14813 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14814 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14815 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14816 }
14817}
14818
14819impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14820 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14821 let start_offset = self.start.to_offset(snapshot);
14822 let end_offset = self.end.to_offset(snapshot);
14823 if start_offset == end_offset {
14824 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14825 } else {
14826 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14827 }
14828 }
14829}
14830
14831pub trait RowExt {
14832 fn as_f32(&self) -> f32;
14833
14834 fn next_row(&self) -> Self;
14835
14836 fn previous_row(&self) -> Self;
14837
14838 fn minus(&self, other: Self) -> u32;
14839}
14840
14841impl RowExt for DisplayRow {
14842 fn as_f32(&self) -> f32 {
14843 self.0 as f32
14844 }
14845
14846 fn next_row(&self) -> Self {
14847 Self(self.0 + 1)
14848 }
14849
14850 fn previous_row(&self) -> Self {
14851 Self(self.0.saturating_sub(1))
14852 }
14853
14854 fn minus(&self, other: Self) -> u32 {
14855 self.0 - other.0
14856 }
14857}
14858
14859impl RowExt for MultiBufferRow {
14860 fn as_f32(&self) -> f32 {
14861 self.0 as f32
14862 }
14863
14864 fn next_row(&self) -> Self {
14865 Self(self.0 + 1)
14866 }
14867
14868 fn previous_row(&self) -> Self {
14869 Self(self.0.saturating_sub(1))
14870 }
14871
14872 fn minus(&self, other: Self) -> u32 {
14873 self.0 - other.0
14874 }
14875}
14876
14877trait RowRangeExt {
14878 type Row;
14879
14880 fn len(&self) -> usize;
14881
14882 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14883}
14884
14885impl RowRangeExt for Range<MultiBufferRow> {
14886 type Row = MultiBufferRow;
14887
14888 fn len(&self) -> usize {
14889 (self.end.0 - self.start.0) as usize
14890 }
14891
14892 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14893 (self.start.0..self.end.0).map(MultiBufferRow)
14894 }
14895}
14896
14897impl RowRangeExt for Range<DisplayRow> {
14898 type Row = DisplayRow;
14899
14900 fn len(&self) -> usize {
14901 (self.end.0 - self.start.0) as usize
14902 }
14903
14904 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14905 (self.start.0..self.end.0).map(DisplayRow)
14906 }
14907}
14908
14909fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14910 if hunk.diff_base_byte_range.is_empty() {
14911 DiffHunkStatus::Added
14912 } else if hunk.row_range.is_empty() {
14913 DiffHunkStatus::Removed
14914 } else {
14915 DiffHunkStatus::Modified
14916 }
14917}
14918
14919/// If select range has more than one line, we
14920/// just point the cursor to range.start.
14921fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14922 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14923 range
14924 } else {
14925 range.start..range.start
14926 }
14927}
14928
14929const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);