1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod debounced_delay;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31mod inline_completion_provider;
32pub mod items;
33mod linked_editing_ranges;
34mod lsp_ext;
35mod mouse_context_menu;
36pub mod movement;
37mod persistence;
38mod proposed_changes_editor;
39mod rust_analyzer_ext;
40pub mod scroll;
41mod selections_collection;
42pub mod tasks;
43
44#[cfg(test)]
45mod editor_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51pub(crate) use actions::*;
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString,
79 Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
80 TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
81 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion_provider::*;
90pub use items::MAX_TAB_TITLE_LEN;
91use itertools::Itertools;
92use language::{
93 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
94 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
95 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
96 Point, Selection, SelectionGoal, TransactionId,
97};
98use language::{
99 point_to_lsp, BufferRow, CharClassifier, LanguageServerName, Runnable, RunnableRange,
100};
101use linked_editing_ranges::refresh_linked_ranges;
102pub use proposed_changes_editor::{
103 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
104};
105use similar::{ChangeTag, TextDiff};
106use task::{ResolvedTask, TaskTemplate, TaskVariables};
107
108use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
109pub use lsp::CompletionContext;
110use lsp::{
111 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
112 LanguageServerId,
113};
114use mouse_context_menu::MouseContextMenu;
115use movement::TextLayoutDetails;
116pub use multi_buffer::{
117 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
118 ToPoint,
119};
120use multi_buffer::{
121 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
122};
123use ordered_float::OrderedFloat;
124use parking_lot::{Mutex, RwLock};
125use project::{
126 lsp_store::{FormatTarget, FormatTrigger},
127 project_settings::{GitGutterSetting, ProjectSettings},
128 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
129 LocationLink, Project, ProjectPath, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
135use serde::{Deserialize, Serialize};
136use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
137use smallvec::SmallVec;
138use snippet::Snippet;
139use std::{
140 any::TypeId,
141 borrow::Cow,
142 cell::RefCell,
143 cmp::{self, Ordering, Reverse},
144 mem,
145 num::NonZeroU32,
146 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
147 path::{Path, PathBuf},
148 rc::Rc,
149 sync::Arc,
150 time::{Duration, Instant},
151};
152pub use sum_tree::Bias;
153use sum_tree::TreeMap;
154use text::{BufferId, OffsetUtf16, Rope};
155use theme::{
156 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
157 ThemeColors, ThemeSettings,
158};
159use ui::{
160 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
161 ListItem, Popover, PopoverMenuHandle, Tooltip,
162};
163use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
164use workspace::item::{ItemHandle, PreviewTabsSettings};
165use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
166use workspace::{
167 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
168};
169use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
170
171use crate::hover_links::find_url;
172use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
173
174pub const FILE_HEADER_HEIGHT: u32 = 2;
175pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
176pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
177pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
178const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
179const MAX_LINE_LEN: usize = 1024;
180const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
181const MAX_SELECTION_HISTORY_LEN: usize = 1024;
182pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
183#[doc(hidden)]
184pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
185#[doc(hidden)]
186pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
187
188pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
189pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
190
191pub fn render_parsed_markdown(
192 element_id: impl Into<ElementId>,
193 parsed: &language::ParsedMarkdown,
194 editor_style: &EditorStyle,
195 workspace: Option<WeakView<Workspace>>,
196 cx: &mut WindowContext,
197) -> InteractiveText {
198 let code_span_background_color = cx
199 .theme()
200 .colors()
201 .editor_document_highlight_read_background;
202
203 let highlights = gpui::combine_highlights(
204 parsed.highlights.iter().filter_map(|(range, highlight)| {
205 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
206 Some((range.clone(), highlight))
207 }),
208 parsed
209 .regions
210 .iter()
211 .zip(&parsed.region_ranges)
212 .filter_map(|(region, range)| {
213 if region.code {
214 Some((
215 range.clone(),
216 HighlightStyle {
217 background_color: Some(code_span_background_color),
218 ..Default::default()
219 },
220 ))
221 } else {
222 None
223 }
224 }),
225 );
226
227 let mut links = Vec::new();
228 let mut link_ranges = Vec::new();
229 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
230 if let Some(link) = region.link.clone() {
231 links.push(link);
232 link_ranges.push(range.clone());
233 }
234 }
235
236 InteractiveText::new(
237 element_id,
238 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
239 )
240 .on_click(link_ranges, move |clicked_range_ix, cx| {
241 match &links[clicked_range_ix] {
242 markdown::Link::Web { url } => cx.open_url(url),
243 markdown::Link::Path { path } => {
244 if let Some(workspace) = &workspace {
245 _ = workspace.update(cx, |workspace, cx| {
246 workspace.open_abs_path(path.clone(), false, cx).detach();
247 });
248 }
249 }
250 }
251 })
252}
253
254#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
255pub(crate) enum InlayId {
256 Suggestion(usize),
257 Hint(usize),
258}
259
260impl InlayId {
261 fn id(&self) -> usize {
262 match self {
263 Self::Suggestion(id) => *id,
264 Self::Hint(id) => *id,
265 }
266 }
267}
268
269enum DiffRowHighlight {}
270enum DocumentHighlightRead {}
271enum DocumentHighlightWrite {}
272enum InputComposition {}
273
274#[derive(Copy, Clone, PartialEq, Eq)]
275pub enum Direction {
276 Prev,
277 Next,
278}
279
280#[derive(Debug, Copy, Clone, PartialEq, Eq)]
281pub enum Navigated {
282 Yes,
283 No,
284}
285
286impl Navigated {
287 pub fn from_bool(yes: bool) -> Navigated {
288 if yes {
289 Navigated::Yes
290 } else {
291 Navigated::No
292 }
293 }
294}
295
296pub fn init_settings(cx: &mut AppContext) {
297 EditorSettings::register(cx);
298}
299
300pub fn init(cx: &mut AppContext) {
301 init_settings(cx);
302
303 workspace::register_project_item::<Editor>(cx);
304 workspace::FollowableViewRegistry::register::<Editor>(cx);
305 workspace::register_serializable_item::<Editor>(cx);
306
307 cx.observe_new_views(
308 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
309 workspace.register_action(Editor::new_file);
310 workspace.register_action(Editor::new_file_vertical);
311 workspace.register_action(Editor::new_file_horizontal);
312 },
313 )
314 .detach();
315
316 cx.on_action(move |_: &workspace::NewFile, cx| {
317 let app_state = workspace::AppState::global(cx);
318 if let Some(app_state) = app_state.upgrade() {
319 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
320 Editor::new_file(workspace, &Default::default(), cx)
321 })
322 .detach();
323 }
324 });
325 cx.on_action(move |_: &workspace::NewWindow, cx| {
326 let app_state = workspace::AppState::global(cx);
327 if let Some(app_state) = app_state.upgrade() {
328 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
329 Editor::new_file(workspace, &Default::default(), cx)
330 })
331 .detach();
332 }
333 });
334}
335
336pub struct SearchWithinRange;
337
338trait InvalidationRegion {
339 fn ranges(&self) -> &[Range<Anchor>];
340}
341
342#[derive(Clone, Debug, PartialEq)]
343pub enum SelectPhase {
344 Begin {
345 position: DisplayPoint,
346 add: bool,
347 click_count: usize,
348 },
349 BeginColumnar {
350 position: DisplayPoint,
351 reset: bool,
352 goal_column: u32,
353 },
354 Extend {
355 position: DisplayPoint,
356 click_count: usize,
357 },
358 Update {
359 position: DisplayPoint,
360 goal_column: u32,
361 scroll_delta: gpui::Point<f32>,
362 },
363 End,
364}
365
366#[derive(Clone, Debug)]
367pub enum SelectMode {
368 Character,
369 Word(Range<Anchor>),
370 Line(Range<Anchor>),
371 All,
372}
373
374#[derive(Copy, Clone, PartialEq, Eq, Debug)]
375pub enum EditorMode {
376 SingleLine { auto_width: bool },
377 AutoHeight { max_lines: usize },
378 Full,
379}
380
381#[derive(Copy, Clone, Debug)]
382pub enum SoftWrap {
383 /// Prefer not to wrap at all.
384 ///
385 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
386 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
387 GitDiff,
388 /// Prefer a single line generally, unless an overly long line is encountered.
389 None,
390 /// Soft wrap lines that exceed the editor width.
391 EditorWidth,
392 /// Soft wrap lines at the preferred line length.
393 Column(u32),
394 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
395 Bounded(u32),
396}
397
398#[derive(Clone)]
399pub struct EditorStyle {
400 pub background: Hsla,
401 pub local_player: PlayerColor,
402 pub text: TextStyle,
403 pub scrollbar_width: Pixels,
404 pub syntax: Arc<SyntaxTheme>,
405 pub status: StatusColors,
406 pub inlay_hints_style: HighlightStyle,
407 pub suggestions_style: HighlightStyle,
408 pub unnecessary_code_fade: f32,
409}
410
411impl Default for EditorStyle {
412 fn default() -> Self {
413 Self {
414 background: Hsla::default(),
415 local_player: PlayerColor::default(),
416 text: TextStyle::default(),
417 scrollbar_width: Pixels::default(),
418 syntax: Default::default(),
419 // HACK: Status colors don't have a real default.
420 // We should look into removing the status colors from the editor
421 // style and retrieve them directly from the theme.
422 status: StatusColors::dark(),
423 inlay_hints_style: HighlightStyle::default(),
424 suggestions_style: HighlightStyle::default(),
425 unnecessary_code_fade: Default::default(),
426 }
427 }
428}
429
430pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
431 let show_background = language_settings::language_settings(None, None, cx)
432 .inlay_hints
433 .show_background;
434
435 HighlightStyle {
436 color: Some(cx.theme().status().hint),
437 background_color: show_background.then(|| cx.theme().status().hint_background),
438 ..HighlightStyle::default()
439 }
440}
441
442type CompletionId = usize;
443
444#[derive(Clone, Debug)]
445struct CompletionState {
446 // render_inlay_ids represents the inlay hints that are inserted
447 // for rendering the inline completions. They may be discontinuous
448 // in the event that the completion provider returns some intersection
449 // with the existing content.
450 render_inlay_ids: Vec<InlayId>,
451 // text is the resulting rope that is inserted when the user accepts a completion.
452 text: Rope,
453 // position is the position of the cursor when the completion was triggered.
454 position: multi_buffer::Anchor,
455 // delete_range is the range of text that this completion state covers.
456 // if the completion is accepted, this range should be deleted.
457 delete_range: Option<Range<multi_buffer::Anchor>>,
458}
459
460#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
461struct EditorActionId(usize);
462
463impl EditorActionId {
464 pub fn post_inc(&mut self) -> Self {
465 let answer = self.0;
466
467 *self = Self(answer + 1);
468
469 Self(answer)
470 }
471}
472
473// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
474// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
475
476type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
477type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
478
479#[derive(Default)]
480struct ScrollbarMarkerState {
481 scrollbar_size: Size<Pixels>,
482 dirty: bool,
483 markers: Arc<[PaintQuad]>,
484 pending_refresh: Option<Task<Result<()>>>,
485}
486
487impl ScrollbarMarkerState {
488 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
489 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
490 }
491}
492
493#[derive(Clone, Debug)]
494struct RunnableTasks {
495 templates: Vec<(TaskSourceKind, TaskTemplate)>,
496 offset: MultiBufferOffset,
497 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
498 column: u32,
499 // Values of all named captures, including those starting with '_'
500 extra_variables: HashMap<String, String>,
501 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
502 context_range: Range<BufferOffset>,
503}
504
505#[derive(Clone)]
506struct ResolvedTasks {
507 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
508 position: Anchor,
509}
510#[derive(Copy, Clone, Debug)]
511struct MultiBufferOffset(usize);
512#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
513struct BufferOffset(usize);
514
515// Addons allow storing per-editor state in other crates (e.g. Vim)
516pub trait Addon: 'static {
517 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
518
519 fn to_any(&self) -> &dyn std::any::Any;
520}
521
522/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
523///
524/// See the [module level documentation](self) for more information.
525pub struct Editor {
526 focus_handle: FocusHandle,
527 last_focused_descendant: Option<WeakFocusHandle>,
528 /// The text buffer being edited
529 buffer: Model<MultiBuffer>,
530 /// Map of how text in the buffer should be displayed.
531 /// Handles soft wraps, folds, fake inlay text insertions, etc.
532 pub display_map: Model<DisplayMap>,
533 pub selections: SelectionsCollection,
534 pub scroll_manager: ScrollManager,
535 /// When inline assist editors are linked, they all render cursors because
536 /// typing enters text into each of them, even the ones that aren't focused.
537 pub(crate) show_cursor_when_unfocused: bool,
538 columnar_selection_tail: Option<Anchor>,
539 add_selections_state: Option<AddSelectionsState>,
540 select_next_state: Option<SelectNextState>,
541 select_prev_state: Option<SelectNextState>,
542 selection_history: SelectionHistory,
543 autoclose_regions: Vec<AutocloseRegion>,
544 snippet_stack: InvalidationStack<SnippetState>,
545 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
546 ime_transaction: Option<TransactionId>,
547 active_diagnostics: Option<ActiveDiagnosticGroup>,
548 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
549
550 project: Option<Model<Project>>,
551 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
552 completion_provider: Option<Box<dyn CompletionProvider>>,
553 collaboration_hub: Option<Box<dyn CollaborationHub>>,
554 blink_manager: Model<BlinkManager>,
555 show_cursor_names: bool,
556 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
557 pub show_local_selections: bool,
558 mode: EditorMode,
559 show_breadcrumbs: bool,
560 show_gutter: bool,
561 show_line_numbers: Option<bool>,
562 use_relative_line_numbers: Option<bool>,
563 show_git_diff_gutter: Option<bool>,
564 show_code_actions: Option<bool>,
565 show_runnables: Option<bool>,
566 show_wrap_guides: Option<bool>,
567 show_indent_guides: Option<bool>,
568 placeholder_text: Option<Arc<str>>,
569 highlight_order: usize,
570 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
571 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
572 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
573 scrollbar_marker_state: ScrollbarMarkerState,
574 active_indent_guides_state: ActiveIndentGuidesState,
575 nav_history: Option<ItemNavHistory>,
576 context_menu: RwLock<Option<ContextMenu>>,
577 mouse_context_menu: Option<MouseContextMenu>,
578 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
579 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
580 signature_help_state: SignatureHelpState,
581 auto_signature_help: Option<bool>,
582 find_all_references_task_sources: Vec<Anchor>,
583 next_completion_id: CompletionId,
584 completion_documentation_pre_resolve_debounce: DebouncedDelay,
585 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
586 code_actions_task: Option<Task<Result<()>>>,
587 document_highlights_task: Option<Task<()>>,
588 linked_editing_range_task: Option<Task<Option<()>>>,
589 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
590 pending_rename: Option<RenameState>,
591 searchable: bool,
592 cursor_shape: CursorShape,
593 current_line_highlight: Option<CurrentLineHighlight>,
594 collapse_matches: bool,
595 autoindent_mode: Option<AutoindentMode>,
596 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
597 input_enabled: bool,
598 use_modal_editing: bool,
599 read_only: bool,
600 leader_peer_id: Option<PeerId>,
601 remote_id: Option<ViewId>,
602 hover_state: HoverState,
603 gutter_hovered: bool,
604 hovered_link_state: Option<HoveredLinkState>,
605 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
606 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
607 active_inline_completion: Option<CompletionState>,
608 // enable_inline_completions is a switch that Vim can use to disable
609 // inline completions based on its mode.
610 enable_inline_completions: bool,
611 show_inline_completions_override: Option<bool>,
612 inlay_hint_cache: InlayHintCache,
613 expanded_hunks: ExpandedHunks,
614 next_inlay_id: usize,
615 _subscriptions: Vec<Subscription>,
616 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
617 gutter_dimensions: GutterDimensions,
618 style: Option<EditorStyle>,
619 text_style_refinement: Option<TextStyleRefinement>,
620 next_editor_action_id: EditorActionId,
621 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
622 use_autoclose: bool,
623 use_auto_surround: bool,
624 auto_replace_emoji_shortcode: bool,
625 show_git_blame_gutter: bool,
626 show_git_blame_inline: bool,
627 show_git_blame_inline_delay_task: Option<Task<()>>,
628 git_blame_inline_enabled: bool,
629 serialize_dirty_buffers: bool,
630 show_selection_menu: Option<bool>,
631 blame: Option<Model<GitBlame>>,
632 blame_subscription: Option<Subscription>,
633 custom_context_menu: Option<
634 Box<
635 dyn 'static
636 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
637 >,
638 >,
639 last_bounds: Option<Bounds<Pixels>>,
640 expect_bounds_change: Option<Bounds<Pixels>>,
641 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
642 tasks_update_task: Option<Task<()>>,
643 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
644 breadcrumb_header: Option<String>,
645 focused_block: Option<FocusedBlock>,
646 next_scroll_position: NextScrollCursorCenterTopBottom,
647 addons: HashMap<TypeId, Box<dyn Addon>>,
648 _scroll_cursor_center_top_bottom_task: Task<()>,
649}
650
651#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
652enum NextScrollCursorCenterTopBottom {
653 #[default]
654 Center,
655 Top,
656 Bottom,
657}
658
659impl NextScrollCursorCenterTopBottom {
660 fn next(&self) -> Self {
661 match self {
662 Self::Center => Self::Top,
663 Self::Top => Self::Bottom,
664 Self::Bottom => Self::Center,
665 }
666 }
667}
668
669#[derive(Clone)]
670pub struct EditorSnapshot {
671 pub mode: EditorMode,
672 show_gutter: bool,
673 show_line_numbers: Option<bool>,
674 show_git_diff_gutter: Option<bool>,
675 show_code_actions: Option<bool>,
676 show_runnables: Option<bool>,
677 git_blame_gutter_max_author_length: Option<usize>,
678 pub display_snapshot: DisplaySnapshot,
679 pub placeholder_text: Option<Arc<str>>,
680 is_focused: bool,
681 scroll_anchor: ScrollAnchor,
682 ongoing_scroll: OngoingScroll,
683 current_line_highlight: CurrentLineHighlight,
684 gutter_hovered: bool,
685}
686
687const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
688
689#[derive(Default, Debug, Clone, Copy)]
690pub struct GutterDimensions {
691 pub left_padding: Pixels,
692 pub right_padding: Pixels,
693 pub width: Pixels,
694 pub margin: Pixels,
695 pub git_blame_entries_width: Option<Pixels>,
696}
697
698impl GutterDimensions {
699 /// The full width of the space taken up by the gutter.
700 pub fn full_width(&self) -> Pixels {
701 self.margin + self.width
702 }
703
704 /// The width of the space reserved for the fold indicators,
705 /// use alongside 'justify_end' and `gutter_width` to
706 /// right align content with the line numbers
707 pub fn fold_area_width(&self) -> Pixels {
708 self.margin + self.right_padding
709 }
710}
711
712#[derive(Debug)]
713pub struct RemoteSelection {
714 pub replica_id: ReplicaId,
715 pub selection: Selection<Anchor>,
716 pub cursor_shape: CursorShape,
717 pub peer_id: PeerId,
718 pub line_mode: bool,
719 pub participant_index: Option<ParticipantIndex>,
720 pub user_name: Option<SharedString>,
721}
722
723#[derive(Clone, Debug)]
724struct SelectionHistoryEntry {
725 selections: Arc<[Selection<Anchor>]>,
726 select_next_state: Option<SelectNextState>,
727 select_prev_state: Option<SelectNextState>,
728 add_selections_state: Option<AddSelectionsState>,
729}
730
731enum SelectionHistoryMode {
732 Normal,
733 Undoing,
734 Redoing,
735}
736
737#[derive(Clone, PartialEq, Eq, Hash)]
738struct HoveredCursor {
739 replica_id: u16,
740 selection_id: usize,
741}
742
743impl Default for SelectionHistoryMode {
744 fn default() -> Self {
745 Self::Normal
746 }
747}
748
749#[derive(Default)]
750struct SelectionHistory {
751 #[allow(clippy::type_complexity)]
752 selections_by_transaction:
753 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
754 mode: SelectionHistoryMode,
755 undo_stack: VecDeque<SelectionHistoryEntry>,
756 redo_stack: VecDeque<SelectionHistoryEntry>,
757}
758
759impl SelectionHistory {
760 fn insert_transaction(
761 &mut self,
762 transaction_id: TransactionId,
763 selections: Arc<[Selection<Anchor>]>,
764 ) {
765 self.selections_by_transaction
766 .insert(transaction_id, (selections, None));
767 }
768
769 #[allow(clippy::type_complexity)]
770 fn transaction(
771 &self,
772 transaction_id: TransactionId,
773 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
774 self.selections_by_transaction.get(&transaction_id)
775 }
776
777 #[allow(clippy::type_complexity)]
778 fn transaction_mut(
779 &mut self,
780 transaction_id: TransactionId,
781 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
782 self.selections_by_transaction.get_mut(&transaction_id)
783 }
784
785 fn push(&mut self, entry: SelectionHistoryEntry) {
786 if !entry.selections.is_empty() {
787 match self.mode {
788 SelectionHistoryMode::Normal => {
789 self.push_undo(entry);
790 self.redo_stack.clear();
791 }
792 SelectionHistoryMode::Undoing => self.push_redo(entry),
793 SelectionHistoryMode::Redoing => self.push_undo(entry),
794 }
795 }
796 }
797
798 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
799 if self
800 .undo_stack
801 .back()
802 .map_or(true, |e| e.selections != entry.selections)
803 {
804 self.undo_stack.push_back(entry);
805 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
806 self.undo_stack.pop_front();
807 }
808 }
809 }
810
811 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
812 if self
813 .redo_stack
814 .back()
815 .map_or(true, |e| e.selections != entry.selections)
816 {
817 self.redo_stack.push_back(entry);
818 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
819 self.redo_stack.pop_front();
820 }
821 }
822 }
823}
824
825struct RowHighlight {
826 index: usize,
827 range: Range<Anchor>,
828 color: Hsla,
829 should_autoscroll: bool,
830}
831
832#[derive(Clone, Debug)]
833struct AddSelectionsState {
834 above: bool,
835 stack: Vec<usize>,
836}
837
838#[derive(Clone)]
839struct SelectNextState {
840 query: AhoCorasick,
841 wordwise: bool,
842 done: bool,
843}
844
845impl std::fmt::Debug for SelectNextState {
846 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
847 f.debug_struct(std::any::type_name::<Self>())
848 .field("wordwise", &self.wordwise)
849 .field("done", &self.done)
850 .finish()
851 }
852}
853
854#[derive(Debug)]
855struct AutocloseRegion {
856 selection_id: usize,
857 range: Range<Anchor>,
858 pair: BracketPair,
859}
860
861#[derive(Debug)]
862struct SnippetState {
863 ranges: Vec<Vec<Range<Anchor>>>,
864 active_index: usize,
865}
866
867#[doc(hidden)]
868pub struct RenameState {
869 pub range: Range<Anchor>,
870 pub old_name: Arc<str>,
871 pub editor: View<Editor>,
872 block_id: CustomBlockId,
873}
874
875struct InvalidationStack<T>(Vec<T>);
876
877struct RegisteredInlineCompletionProvider {
878 provider: Arc<dyn InlineCompletionProviderHandle>,
879 _subscription: Subscription,
880}
881
882enum ContextMenu {
883 Completions(CompletionsMenu),
884 CodeActions(CodeActionsMenu),
885}
886
887impl ContextMenu {
888 fn select_first(
889 &mut self,
890 provider: Option<&dyn CompletionProvider>,
891 cx: &mut ViewContext<Editor>,
892 ) -> bool {
893 if self.visible() {
894 match self {
895 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
896 ContextMenu::CodeActions(menu) => menu.select_first(cx),
897 }
898 true
899 } else {
900 false
901 }
902 }
903
904 fn select_prev(
905 &mut self,
906 provider: Option<&dyn CompletionProvider>,
907 cx: &mut ViewContext<Editor>,
908 ) -> bool {
909 if self.visible() {
910 match self {
911 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
912 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
913 }
914 true
915 } else {
916 false
917 }
918 }
919
920 fn select_next(
921 &mut self,
922 provider: Option<&dyn CompletionProvider>,
923 cx: &mut ViewContext<Editor>,
924 ) -> bool {
925 if self.visible() {
926 match self {
927 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
928 ContextMenu::CodeActions(menu) => menu.select_next(cx),
929 }
930 true
931 } else {
932 false
933 }
934 }
935
936 fn select_last(
937 &mut self,
938 provider: Option<&dyn CompletionProvider>,
939 cx: &mut ViewContext<Editor>,
940 ) -> bool {
941 if self.visible() {
942 match self {
943 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
944 ContextMenu::CodeActions(menu) => menu.select_last(cx),
945 }
946 true
947 } else {
948 false
949 }
950 }
951
952 fn visible(&self) -> bool {
953 match self {
954 ContextMenu::Completions(menu) => menu.visible(),
955 ContextMenu::CodeActions(menu) => menu.visible(),
956 }
957 }
958
959 fn render(
960 &self,
961 cursor_position: DisplayPoint,
962 style: &EditorStyle,
963 max_height: Pixels,
964 workspace: Option<WeakView<Workspace>>,
965 cx: &mut ViewContext<Editor>,
966 ) -> (ContextMenuOrigin, AnyElement) {
967 match self {
968 ContextMenu::Completions(menu) => (
969 ContextMenuOrigin::EditorPoint(cursor_position),
970 menu.render(style, max_height, workspace, cx),
971 ),
972 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
973 }
974 }
975}
976
977enum ContextMenuOrigin {
978 EditorPoint(DisplayPoint),
979 GutterIndicator(DisplayRow),
980}
981
982#[derive(Clone)]
983struct CompletionsMenu {
984 id: CompletionId,
985 sort_completions: bool,
986 initial_position: Anchor,
987 buffer: Model<Buffer>,
988 completions: Arc<RwLock<Box<[Completion]>>>,
989 match_candidates: Arc<[StringMatchCandidate]>,
990 matches: Arc<[StringMatch]>,
991 selected_item: usize,
992 scroll_handle: UniformListScrollHandle,
993 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
994}
995
996impl CompletionsMenu {
997 fn select_first(
998 &mut self,
999 provider: Option<&dyn CompletionProvider>,
1000 cx: &mut ViewContext<Editor>,
1001 ) {
1002 self.selected_item = 0;
1003 self.scroll_handle.scroll_to_item(self.selected_item);
1004 self.attempt_resolve_selected_completion_documentation(provider, cx);
1005 cx.notify();
1006 }
1007
1008 fn select_prev(
1009 &mut self,
1010 provider: Option<&dyn CompletionProvider>,
1011 cx: &mut ViewContext<Editor>,
1012 ) {
1013 if self.selected_item > 0 {
1014 self.selected_item -= 1;
1015 } else {
1016 self.selected_item = self.matches.len() - 1;
1017 }
1018 self.scroll_handle.scroll_to_item(self.selected_item);
1019 self.attempt_resolve_selected_completion_documentation(provider, cx);
1020 cx.notify();
1021 }
1022
1023 fn select_next(
1024 &mut self,
1025 provider: Option<&dyn CompletionProvider>,
1026 cx: &mut ViewContext<Editor>,
1027 ) {
1028 if self.selected_item + 1 < self.matches.len() {
1029 self.selected_item += 1;
1030 } else {
1031 self.selected_item = 0;
1032 }
1033 self.scroll_handle.scroll_to_item(self.selected_item);
1034 self.attempt_resolve_selected_completion_documentation(provider, cx);
1035 cx.notify();
1036 }
1037
1038 fn select_last(
1039 &mut self,
1040 provider: Option<&dyn CompletionProvider>,
1041 cx: &mut ViewContext<Editor>,
1042 ) {
1043 self.selected_item = self.matches.len() - 1;
1044 self.scroll_handle.scroll_to_item(self.selected_item);
1045 self.attempt_resolve_selected_completion_documentation(provider, cx);
1046 cx.notify();
1047 }
1048
1049 fn pre_resolve_completion_documentation(
1050 buffer: Model<Buffer>,
1051 completions: Arc<RwLock<Box<[Completion]>>>,
1052 matches: Arc<[StringMatch]>,
1053 editor: &Editor,
1054 cx: &mut ViewContext<Editor>,
1055 ) -> Task<()> {
1056 let settings = EditorSettings::get_global(cx);
1057 if !settings.show_completion_documentation {
1058 return Task::ready(());
1059 }
1060
1061 let Some(provider) = editor.completion_provider.as_ref() else {
1062 return Task::ready(());
1063 };
1064
1065 let resolve_task = provider.resolve_completions(
1066 buffer,
1067 matches.iter().map(|m| m.candidate_id).collect(),
1068 completions.clone(),
1069 cx,
1070 );
1071
1072 cx.spawn(move |this, mut cx| async move {
1073 if let Some(true) = resolve_task.await.log_err() {
1074 this.update(&mut cx, |_, cx| cx.notify()).ok();
1075 }
1076 })
1077 }
1078
1079 fn attempt_resolve_selected_completion_documentation(
1080 &mut self,
1081 provider: Option<&dyn CompletionProvider>,
1082 cx: &mut ViewContext<Editor>,
1083 ) {
1084 let settings = EditorSettings::get_global(cx);
1085 if !settings.show_completion_documentation {
1086 return;
1087 }
1088
1089 let completion_index = self.matches[self.selected_item].candidate_id;
1090 let Some(provider) = provider else {
1091 return;
1092 };
1093
1094 let resolve_task = provider.resolve_completions(
1095 self.buffer.clone(),
1096 vec![completion_index],
1097 self.completions.clone(),
1098 cx,
1099 );
1100
1101 let delay_ms =
1102 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1103 let delay = Duration::from_millis(delay_ms);
1104
1105 self.selected_completion_documentation_resolve_debounce
1106 .lock()
1107 .fire_new(delay, cx, |_, cx| {
1108 cx.spawn(move |this, mut cx| async move {
1109 if let Some(true) = resolve_task.await.log_err() {
1110 this.update(&mut cx, |_, cx| cx.notify()).ok();
1111 }
1112 })
1113 });
1114 }
1115
1116 fn visible(&self) -> bool {
1117 !self.matches.is_empty()
1118 }
1119
1120 fn render(
1121 &self,
1122 style: &EditorStyle,
1123 max_height: Pixels,
1124 workspace: Option<WeakView<Workspace>>,
1125 cx: &mut ViewContext<Editor>,
1126 ) -> AnyElement {
1127 let settings = EditorSettings::get_global(cx);
1128 let show_completion_documentation = settings.show_completion_documentation;
1129
1130 let widest_completion_ix = self
1131 .matches
1132 .iter()
1133 .enumerate()
1134 .max_by_key(|(_, mat)| {
1135 let completions = self.completions.read();
1136 let completion = &completions[mat.candidate_id];
1137 let documentation = &completion.documentation;
1138
1139 let mut len = completion.label.text.chars().count();
1140 if let Some(Documentation::SingleLine(text)) = documentation {
1141 if show_completion_documentation {
1142 len += text.chars().count();
1143 }
1144 }
1145
1146 len
1147 })
1148 .map(|(ix, _)| ix);
1149
1150 let completions = self.completions.clone();
1151 let matches = self.matches.clone();
1152 let selected_item = self.selected_item;
1153 let style = style.clone();
1154
1155 let multiline_docs = if show_completion_documentation {
1156 let mat = &self.matches[selected_item];
1157 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1158 Some(Documentation::MultiLinePlainText(text)) => {
1159 Some(div().child(SharedString::from(text.clone())))
1160 }
1161 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1162 Some(div().child(render_parsed_markdown(
1163 "completions_markdown",
1164 parsed,
1165 &style,
1166 workspace,
1167 cx,
1168 )))
1169 }
1170 _ => None,
1171 };
1172 multiline_docs.map(|div| {
1173 div.id("multiline_docs")
1174 .max_h(max_height)
1175 .flex_1()
1176 .px_1p5()
1177 .py_1()
1178 .min_w(px(260.))
1179 .max_w(px(640.))
1180 .w(px(500.))
1181 .overflow_y_scroll()
1182 .occlude()
1183 })
1184 } else {
1185 None
1186 };
1187
1188 let list = uniform_list(
1189 cx.view().clone(),
1190 "completions",
1191 matches.len(),
1192 move |_editor, range, cx| {
1193 let start_ix = range.start;
1194 let completions_guard = completions.read();
1195
1196 matches[range]
1197 .iter()
1198 .enumerate()
1199 .map(|(ix, mat)| {
1200 let item_ix = start_ix + ix;
1201 let candidate_id = mat.candidate_id;
1202 let completion = &completions_guard[candidate_id];
1203
1204 let documentation = if show_completion_documentation {
1205 &completion.documentation
1206 } else {
1207 &None
1208 };
1209
1210 let highlights = gpui::combine_highlights(
1211 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1212 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1213 |(range, mut highlight)| {
1214 // Ignore font weight for syntax highlighting, as we'll use it
1215 // for fuzzy matches.
1216 highlight.font_weight = None;
1217
1218 if completion.lsp_completion.deprecated.unwrap_or(false) {
1219 highlight.strikethrough = Some(StrikethroughStyle {
1220 thickness: 1.0.into(),
1221 ..Default::default()
1222 });
1223 highlight.color = Some(cx.theme().colors().text_muted);
1224 }
1225
1226 (range, highlight)
1227 },
1228 ),
1229 );
1230 let completion_label = StyledText::new(completion.label.text.clone())
1231 .with_highlights(&style.text, highlights);
1232 let documentation_label =
1233 if let Some(Documentation::SingleLine(text)) = documentation {
1234 if text.trim().is_empty() {
1235 None
1236 } else {
1237 Some(
1238 Label::new(text.clone())
1239 .ml_4()
1240 .size(LabelSize::Small)
1241 .color(Color::Muted),
1242 )
1243 }
1244 } else {
1245 None
1246 };
1247
1248 let color_swatch = completion
1249 .color()
1250 .map(|color| div().size_4().bg(color).rounded_sm());
1251
1252 div().min_w(px(220.)).max_w(px(540.)).child(
1253 ListItem::new(mat.candidate_id)
1254 .inset(true)
1255 .selected(item_ix == selected_item)
1256 .on_click(cx.listener(move |editor, _event, cx| {
1257 cx.stop_propagation();
1258 if let Some(task) = editor.confirm_completion(
1259 &ConfirmCompletion {
1260 item_ix: Some(item_ix),
1261 },
1262 cx,
1263 ) {
1264 task.detach_and_log_err(cx)
1265 }
1266 }))
1267 .start_slot::<Div>(color_swatch)
1268 .child(h_flex().overflow_hidden().child(completion_label))
1269 .end_slot::<Label>(documentation_label),
1270 )
1271 })
1272 .collect()
1273 },
1274 )
1275 .occlude()
1276 .max_h(max_height)
1277 .track_scroll(self.scroll_handle.clone())
1278 .with_width_from_item(widest_completion_ix)
1279 .with_sizing_behavior(ListSizingBehavior::Infer);
1280
1281 Popover::new()
1282 .child(list)
1283 .when_some(multiline_docs, |popover, multiline_docs| {
1284 popover.aside(multiline_docs)
1285 })
1286 .into_any_element()
1287 }
1288
1289 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1290 let mut matches = if let Some(query) = query {
1291 fuzzy::match_strings(
1292 &self.match_candidates,
1293 query,
1294 query.chars().any(|c| c.is_uppercase()),
1295 100,
1296 &Default::default(),
1297 executor,
1298 )
1299 .await
1300 } else {
1301 self.match_candidates
1302 .iter()
1303 .enumerate()
1304 .map(|(candidate_id, candidate)| StringMatch {
1305 candidate_id,
1306 score: Default::default(),
1307 positions: Default::default(),
1308 string: candidate.string.clone(),
1309 })
1310 .collect()
1311 };
1312
1313 // Remove all candidates where the query's start does not match the start of any word in the candidate
1314 if let Some(query) = query {
1315 if let Some(query_start) = query.chars().next() {
1316 matches.retain(|string_match| {
1317 split_words(&string_match.string).any(|word| {
1318 // Check that the first codepoint of the word as lowercase matches the first
1319 // codepoint of the query as lowercase
1320 word.chars()
1321 .flat_map(|codepoint| codepoint.to_lowercase())
1322 .zip(query_start.to_lowercase())
1323 .all(|(word_cp, query_cp)| word_cp == query_cp)
1324 })
1325 });
1326 }
1327 }
1328
1329 let completions = self.completions.read();
1330 if self.sort_completions {
1331 matches.sort_unstable_by_key(|mat| {
1332 // We do want to strike a balance here between what the language server tells us
1333 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1334 // `Creat` and there is a local variable called `CreateComponent`).
1335 // So what we do is: we bucket all matches into two buckets
1336 // - Strong matches
1337 // - Weak matches
1338 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1339 // and the Weak matches are the rest.
1340 //
1341 // For the strong matches, we sort by the language-servers score first and for the weak
1342 // matches, we prefer our fuzzy finder first.
1343 //
1344 // The thinking behind that: it's useless to take the sort_text the language-server gives
1345 // us into account when it's obviously a bad match.
1346
1347 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1348 enum MatchScore<'a> {
1349 Strong {
1350 sort_text: Option<&'a str>,
1351 score: Reverse<OrderedFloat<f64>>,
1352 sort_key: (usize, &'a str),
1353 },
1354 Weak {
1355 score: Reverse<OrderedFloat<f64>>,
1356 sort_text: Option<&'a str>,
1357 sort_key: (usize, &'a str),
1358 },
1359 }
1360
1361 let completion = &completions[mat.candidate_id];
1362 let sort_key = completion.sort_key();
1363 let sort_text = completion.lsp_completion.sort_text.as_deref();
1364 let score = Reverse(OrderedFloat(mat.score));
1365
1366 if mat.score >= 0.2 {
1367 MatchScore::Strong {
1368 sort_text,
1369 score,
1370 sort_key,
1371 }
1372 } else {
1373 MatchScore::Weak {
1374 score,
1375 sort_text,
1376 sort_key,
1377 }
1378 }
1379 });
1380 }
1381
1382 for mat in &mut matches {
1383 let completion = &completions[mat.candidate_id];
1384 mat.string.clone_from(&completion.label.text);
1385 for position in &mut mat.positions {
1386 *position += completion.label.filter_range.start;
1387 }
1388 }
1389 drop(completions);
1390
1391 self.matches = matches.into();
1392 self.selected_item = 0;
1393 }
1394}
1395
1396struct AvailableCodeAction {
1397 excerpt_id: ExcerptId,
1398 action: CodeAction,
1399 provider: Arc<dyn CodeActionProvider>,
1400}
1401
1402#[derive(Clone)]
1403struct CodeActionContents {
1404 tasks: Option<Arc<ResolvedTasks>>,
1405 actions: Option<Arc<[AvailableCodeAction]>>,
1406}
1407
1408impl CodeActionContents {
1409 fn len(&self) -> usize {
1410 match (&self.tasks, &self.actions) {
1411 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1412 (Some(tasks), None) => tasks.templates.len(),
1413 (None, Some(actions)) => actions.len(),
1414 (None, None) => 0,
1415 }
1416 }
1417
1418 fn is_empty(&self) -> bool {
1419 match (&self.tasks, &self.actions) {
1420 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1421 (Some(tasks), None) => tasks.templates.is_empty(),
1422 (None, Some(actions)) => actions.is_empty(),
1423 (None, None) => true,
1424 }
1425 }
1426
1427 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1428 self.tasks
1429 .iter()
1430 .flat_map(|tasks| {
1431 tasks
1432 .templates
1433 .iter()
1434 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1435 })
1436 .chain(self.actions.iter().flat_map(|actions| {
1437 actions.iter().map(|available| CodeActionsItem::CodeAction {
1438 excerpt_id: available.excerpt_id,
1439 action: available.action.clone(),
1440 provider: available.provider.clone(),
1441 })
1442 }))
1443 }
1444 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1445 match (&self.tasks, &self.actions) {
1446 (Some(tasks), Some(actions)) => {
1447 if index < tasks.templates.len() {
1448 tasks
1449 .templates
1450 .get(index)
1451 .cloned()
1452 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1453 } else {
1454 actions.get(index - tasks.templates.len()).map(|available| {
1455 CodeActionsItem::CodeAction {
1456 excerpt_id: available.excerpt_id,
1457 action: available.action.clone(),
1458 provider: available.provider.clone(),
1459 }
1460 })
1461 }
1462 }
1463 (Some(tasks), None) => tasks
1464 .templates
1465 .get(index)
1466 .cloned()
1467 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1468 (None, Some(actions)) => {
1469 actions
1470 .get(index)
1471 .map(|available| CodeActionsItem::CodeAction {
1472 excerpt_id: available.excerpt_id,
1473 action: available.action.clone(),
1474 provider: available.provider.clone(),
1475 })
1476 }
1477 (None, None) => None,
1478 }
1479 }
1480}
1481
1482#[allow(clippy::large_enum_variant)]
1483#[derive(Clone)]
1484enum CodeActionsItem {
1485 Task(TaskSourceKind, ResolvedTask),
1486 CodeAction {
1487 excerpt_id: ExcerptId,
1488 action: CodeAction,
1489 provider: Arc<dyn CodeActionProvider>,
1490 },
1491}
1492
1493impl CodeActionsItem {
1494 fn as_task(&self) -> Option<&ResolvedTask> {
1495 let Self::Task(_, task) = self else {
1496 return None;
1497 };
1498 Some(task)
1499 }
1500 fn as_code_action(&self) -> Option<&CodeAction> {
1501 let Self::CodeAction { action, .. } = self else {
1502 return None;
1503 };
1504 Some(action)
1505 }
1506 fn label(&self) -> String {
1507 match self {
1508 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1509 Self::Task(_, task) => task.resolved_label.clone(),
1510 }
1511 }
1512}
1513
1514struct CodeActionsMenu {
1515 actions: CodeActionContents,
1516 buffer: Model<Buffer>,
1517 selected_item: usize,
1518 scroll_handle: UniformListScrollHandle,
1519 deployed_from_indicator: Option<DisplayRow>,
1520}
1521
1522impl CodeActionsMenu {
1523 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1524 self.selected_item = 0;
1525 self.scroll_handle.scroll_to_item(self.selected_item);
1526 cx.notify()
1527 }
1528
1529 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1530 if self.selected_item > 0 {
1531 self.selected_item -= 1;
1532 } else {
1533 self.selected_item = self.actions.len() - 1;
1534 }
1535 self.scroll_handle.scroll_to_item(self.selected_item);
1536 cx.notify();
1537 }
1538
1539 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1540 if self.selected_item + 1 < self.actions.len() {
1541 self.selected_item += 1;
1542 } else {
1543 self.selected_item = 0;
1544 }
1545 self.scroll_handle.scroll_to_item(self.selected_item);
1546 cx.notify();
1547 }
1548
1549 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1550 self.selected_item = self.actions.len() - 1;
1551 self.scroll_handle.scroll_to_item(self.selected_item);
1552 cx.notify()
1553 }
1554
1555 fn visible(&self) -> bool {
1556 !self.actions.is_empty()
1557 }
1558
1559 fn render(
1560 &self,
1561 cursor_position: DisplayPoint,
1562 _style: &EditorStyle,
1563 max_height: Pixels,
1564 cx: &mut ViewContext<Editor>,
1565 ) -> (ContextMenuOrigin, AnyElement) {
1566 let actions = self.actions.clone();
1567 let selected_item = self.selected_item;
1568 let element = uniform_list(
1569 cx.view().clone(),
1570 "code_actions_menu",
1571 self.actions.len(),
1572 move |_this, range, cx| {
1573 actions
1574 .iter()
1575 .skip(range.start)
1576 .take(range.end - range.start)
1577 .enumerate()
1578 .map(|(ix, action)| {
1579 let item_ix = range.start + ix;
1580 let selected = selected_item == item_ix;
1581 let colors = cx.theme().colors();
1582 div()
1583 .px_1()
1584 .rounded_md()
1585 .text_color(colors.text)
1586 .when(selected, |style| {
1587 style
1588 .bg(colors.element_active)
1589 .text_color(colors.text_accent)
1590 })
1591 .hover(|style| {
1592 style
1593 .bg(colors.element_hover)
1594 .text_color(colors.text_accent)
1595 })
1596 .whitespace_nowrap()
1597 .when_some(action.as_code_action(), |this, action| {
1598 this.on_mouse_down(
1599 MouseButton::Left,
1600 cx.listener(move |editor, _, cx| {
1601 cx.stop_propagation();
1602 if let Some(task) = editor.confirm_code_action(
1603 &ConfirmCodeAction {
1604 item_ix: Some(item_ix),
1605 },
1606 cx,
1607 ) {
1608 task.detach_and_log_err(cx)
1609 }
1610 }),
1611 )
1612 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1613 .child(SharedString::from(action.lsp_action.title.clone()))
1614 })
1615 .when_some(action.as_task(), |this, task| {
1616 this.on_mouse_down(
1617 MouseButton::Left,
1618 cx.listener(move |editor, _, cx| {
1619 cx.stop_propagation();
1620 if let Some(task) = editor.confirm_code_action(
1621 &ConfirmCodeAction {
1622 item_ix: Some(item_ix),
1623 },
1624 cx,
1625 ) {
1626 task.detach_and_log_err(cx)
1627 }
1628 }),
1629 )
1630 .child(SharedString::from(task.resolved_label.clone()))
1631 })
1632 })
1633 .collect()
1634 },
1635 )
1636 .elevation_1(cx)
1637 .p_1()
1638 .max_h(max_height)
1639 .occlude()
1640 .track_scroll(self.scroll_handle.clone())
1641 .with_width_from_item(
1642 self.actions
1643 .iter()
1644 .enumerate()
1645 .max_by_key(|(_, action)| match action {
1646 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1647 CodeActionsItem::CodeAction { action, .. } => {
1648 action.lsp_action.title.chars().count()
1649 }
1650 })
1651 .map(|(ix, _)| ix),
1652 )
1653 .with_sizing_behavior(ListSizingBehavior::Infer)
1654 .into_any_element();
1655
1656 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1657 ContextMenuOrigin::GutterIndicator(row)
1658 } else {
1659 ContextMenuOrigin::EditorPoint(cursor_position)
1660 };
1661
1662 (cursor_position, element)
1663 }
1664}
1665
1666#[derive(Debug)]
1667struct ActiveDiagnosticGroup {
1668 primary_range: Range<Anchor>,
1669 primary_message: String,
1670 group_id: usize,
1671 blocks: HashMap<CustomBlockId, Diagnostic>,
1672 is_valid: bool,
1673}
1674
1675#[derive(Serialize, Deserialize, Clone, Debug)]
1676pub struct ClipboardSelection {
1677 pub len: usize,
1678 pub is_entire_line: bool,
1679 pub first_line_indent: u32,
1680}
1681
1682#[derive(Debug)]
1683pub(crate) struct NavigationData {
1684 cursor_anchor: Anchor,
1685 cursor_position: Point,
1686 scroll_anchor: ScrollAnchor,
1687 scroll_top_row: u32,
1688}
1689
1690#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1691pub enum GotoDefinitionKind {
1692 Symbol,
1693 Declaration,
1694 Type,
1695 Implementation,
1696}
1697
1698#[derive(Debug, Clone)]
1699enum InlayHintRefreshReason {
1700 Toggle(bool),
1701 SettingsChange(InlayHintSettings),
1702 NewLinesShown,
1703 BufferEdited(HashSet<Arc<Language>>),
1704 RefreshRequested,
1705 ExcerptsRemoved(Vec<ExcerptId>),
1706}
1707
1708impl InlayHintRefreshReason {
1709 fn description(&self) -> &'static str {
1710 match self {
1711 Self::Toggle(_) => "toggle",
1712 Self::SettingsChange(_) => "settings change",
1713 Self::NewLinesShown => "new lines shown",
1714 Self::BufferEdited(_) => "buffer edited",
1715 Self::RefreshRequested => "refresh requested",
1716 Self::ExcerptsRemoved(_) => "excerpts removed",
1717 }
1718 }
1719}
1720
1721pub(crate) struct FocusedBlock {
1722 id: BlockId,
1723 focus_handle: WeakFocusHandle,
1724}
1725
1726impl Editor {
1727 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1728 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1729 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1730 Self::new(
1731 EditorMode::SingleLine { auto_width: false },
1732 buffer,
1733 None,
1734 false,
1735 cx,
1736 )
1737 }
1738
1739 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1740 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1741 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1742 Self::new(EditorMode::Full, buffer, None, false, cx)
1743 }
1744
1745 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1746 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1747 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1748 Self::new(
1749 EditorMode::SingleLine { auto_width: true },
1750 buffer,
1751 None,
1752 false,
1753 cx,
1754 )
1755 }
1756
1757 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1758 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1759 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1760 Self::new(
1761 EditorMode::AutoHeight { max_lines },
1762 buffer,
1763 None,
1764 false,
1765 cx,
1766 )
1767 }
1768
1769 pub fn for_buffer(
1770 buffer: Model<Buffer>,
1771 project: Option<Model<Project>>,
1772 cx: &mut ViewContext<Self>,
1773 ) -> Self {
1774 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1775 Self::new(EditorMode::Full, buffer, project, false, cx)
1776 }
1777
1778 pub fn for_multibuffer(
1779 buffer: Model<MultiBuffer>,
1780 project: Option<Model<Project>>,
1781 show_excerpt_controls: bool,
1782 cx: &mut ViewContext<Self>,
1783 ) -> Self {
1784 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1785 }
1786
1787 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1788 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1789 let mut clone = Self::new(
1790 self.mode,
1791 self.buffer.clone(),
1792 self.project.clone(),
1793 show_excerpt_controls,
1794 cx,
1795 );
1796 self.display_map.update(cx, |display_map, cx| {
1797 let snapshot = display_map.snapshot(cx);
1798 clone.display_map.update(cx, |display_map, cx| {
1799 display_map.set_state(&snapshot, cx);
1800 });
1801 });
1802 clone.selections.clone_state(&self.selections);
1803 clone.scroll_manager.clone_state(&self.scroll_manager);
1804 clone.searchable = self.searchable;
1805 clone
1806 }
1807
1808 pub fn new(
1809 mode: EditorMode,
1810 buffer: Model<MultiBuffer>,
1811 project: Option<Model<Project>>,
1812 show_excerpt_controls: bool,
1813 cx: &mut ViewContext<Self>,
1814 ) -> Self {
1815 let style = cx.text_style();
1816 let font_size = style.font_size.to_pixels(cx.rem_size());
1817 let editor = cx.view().downgrade();
1818 let fold_placeholder = FoldPlaceholder {
1819 constrain_width: true,
1820 render: Arc::new(move |fold_id, fold_range, cx| {
1821 let editor = editor.clone();
1822 div()
1823 .id(fold_id)
1824 .bg(cx.theme().colors().ghost_element_background)
1825 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1826 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1827 .rounded_sm()
1828 .size_full()
1829 .cursor_pointer()
1830 .child("⋯")
1831 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1832 .on_click(move |_, cx| {
1833 editor
1834 .update(cx, |editor, cx| {
1835 editor.unfold_ranges(
1836 [fold_range.start..fold_range.end],
1837 true,
1838 false,
1839 cx,
1840 );
1841 cx.stop_propagation();
1842 })
1843 .ok();
1844 })
1845 .into_any()
1846 }),
1847 merge_adjacent: true,
1848 };
1849 let display_map = cx.new_model(|cx| {
1850 DisplayMap::new(
1851 buffer.clone(),
1852 style.font(),
1853 font_size,
1854 None,
1855 show_excerpt_controls,
1856 FILE_HEADER_HEIGHT,
1857 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1858 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1859 fold_placeholder,
1860 cx,
1861 )
1862 });
1863
1864 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1865
1866 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1867
1868 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1869 .then(|| language_settings::SoftWrap::None);
1870
1871 let mut project_subscriptions = Vec::new();
1872 if mode == EditorMode::Full {
1873 if let Some(project) = project.as_ref() {
1874 if buffer.read(cx).is_singleton() {
1875 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1876 cx.emit(EditorEvent::TitleChanged);
1877 }));
1878 }
1879 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1880 if let project::Event::RefreshInlayHints = event {
1881 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1882 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1883 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1884 let focus_handle = editor.focus_handle(cx);
1885 if focus_handle.is_focused(cx) {
1886 let snapshot = buffer.read(cx).snapshot();
1887 for (range, snippet) in snippet_edits {
1888 let editor_range =
1889 language::range_from_lsp(*range).to_offset(&snapshot);
1890 editor
1891 .insert_snippet(&[editor_range], snippet.clone(), cx)
1892 .ok();
1893 }
1894 }
1895 }
1896 }
1897 }));
1898 if let Some(task_inventory) = project
1899 .read(cx)
1900 .task_store()
1901 .read(cx)
1902 .task_inventory()
1903 .cloned()
1904 {
1905 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1906 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1907 }));
1908 }
1909 }
1910 }
1911
1912 let inlay_hint_settings = inlay_hint_settings(
1913 selections.newest_anchor().head(),
1914 &buffer.read(cx).snapshot(cx),
1915 cx,
1916 );
1917 let focus_handle = cx.focus_handle();
1918 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1919 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1920 .detach();
1921 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1922 .detach();
1923 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1924
1925 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1926 Some(false)
1927 } else {
1928 None
1929 };
1930
1931 let mut code_action_providers = Vec::new();
1932 if let Some(project) = project.clone() {
1933 code_action_providers.push(Arc::new(project) as Arc<_>);
1934 }
1935
1936 let mut this = Self {
1937 focus_handle,
1938 show_cursor_when_unfocused: false,
1939 last_focused_descendant: None,
1940 buffer: buffer.clone(),
1941 display_map: display_map.clone(),
1942 selections,
1943 scroll_manager: ScrollManager::new(cx),
1944 columnar_selection_tail: None,
1945 add_selections_state: None,
1946 select_next_state: None,
1947 select_prev_state: None,
1948 selection_history: Default::default(),
1949 autoclose_regions: Default::default(),
1950 snippet_stack: Default::default(),
1951 select_larger_syntax_node_stack: Vec::new(),
1952 ime_transaction: Default::default(),
1953 active_diagnostics: None,
1954 soft_wrap_mode_override,
1955 completion_provider: project.clone().map(|project| Box::new(project) as _),
1956 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1957 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1958 project,
1959 blink_manager: blink_manager.clone(),
1960 show_local_selections: true,
1961 mode,
1962 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1963 show_gutter: mode == EditorMode::Full,
1964 show_line_numbers: None,
1965 use_relative_line_numbers: None,
1966 show_git_diff_gutter: None,
1967 show_code_actions: None,
1968 show_runnables: None,
1969 show_wrap_guides: None,
1970 show_indent_guides,
1971 placeholder_text: None,
1972 highlight_order: 0,
1973 highlighted_rows: HashMap::default(),
1974 background_highlights: Default::default(),
1975 gutter_highlights: TreeMap::default(),
1976 scrollbar_marker_state: ScrollbarMarkerState::default(),
1977 active_indent_guides_state: ActiveIndentGuidesState::default(),
1978 nav_history: None,
1979 context_menu: RwLock::new(None),
1980 mouse_context_menu: None,
1981 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1982 completion_tasks: Default::default(),
1983 signature_help_state: SignatureHelpState::default(),
1984 auto_signature_help: None,
1985 find_all_references_task_sources: Vec::new(),
1986 next_completion_id: 0,
1987 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1988 next_inlay_id: 0,
1989 code_action_providers,
1990 available_code_actions: Default::default(),
1991 code_actions_task: Default::default(),
1992 document_highlights_task: Default::default(),
1993 linked_editing_range_task: Default::default(),
1994 pending_rename: Default::default(),
1995 searchable: true,
1996 cursor_shape: EditorSettings::get_global(cx)
1997 .cursor_shape
1998 .unwrap_or_default(),
1999 current_line_highlight: None,
2000 autoindent_mode: Some(AutoindentMode::EachLine),
2001 collapse_matches: false,
2002 workspace: None,
2003 input_enabled: true,
2004 use_modal_editing: mode == EditorMode::Full,
2005 read_only: false,
2006 use_autoclose: true,
2007 use_auto_surround: true,
2008 auto_replace_emoji_shortcode: false,
2009 leader_peer_id: None,
2010 remote_id: None,
2011 hover_state: Default::default(),
2012 hovered_link_state: Default::default(),
2013 inline_completion_provider: None,
2014 active_inline_completion: None,
2015 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2016 expanded_hunks: ExpandedHunks::default(),
2017 gutter_hovered: false,
2018 pixel_position_of_newest_cursor: None,
2019 last_bounds: None,
2020 expect_bounds_change: None,
2021 gutter_dimensions: GutterDimensions::default(),
2022 style: None,
2023 show_cursor_names: false,
2024 hovered_cursors: Default::default(),
2025 next_editor_action_id: EditorActionId::default(),
2026 editor_actions: Rc::default(),
2027 show_inline_completions_override: None,
2028 enable_inline_completions: true,
2029 custom_context_menu: None,
2030 show_git_blame_gutter: false,
2031 show_git_blame_inline: false,
2032 show_selection_menu: None,
2033 show_git_blame_inline_delay_task: None,
2034 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2035 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2036 .session
2037 .restore_unsaved_buffers,
2038 blame: None,
2039 blame_subscription: None,
2040 tasks: Default::default(),
2041 _subscriptions: vec![
2042 cx.observe(&buffer, Self::on_buffer_changed),
2043 cx.subscribe(&buffer, Self::on_buffer_event),
2044 cx.observe(&display_map, Self::on_display_map_changed),
2045 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2046 cx.observe_global::<SettingsStore>(Self::settings_changed),
2047 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2048 cx.observe_window_activation(|editor, cx| {
2049 let active = cx.is_window_active();
2050 editor.blink_manager.update(cx, |blink_manager, cx| {
2051 if active {
2052 blink_manager.enable(cx);
2053 } else {
2054 blink_manager.disable(cx);
2055 }
2056 });
2057 }),
2058 ],
2059 tasks_update_task: None,
2060 linked_edit_ranges: Default::default(),
2061 previous_search_ranges: None,
2062 breadcrumb_header: None,
2063 focused_block: None,
2064 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2065 addons: HashMap::default(),
2066 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2067 text_style_refinement: None,
2068 };
2069 this.tasks_update_task = Some(this.refresh_runnables(cx));
2070 this._subscriptions.extend(project_subscriptions);
2071
2072 this.end_selection(cx);
2073 this.scroll_manager.show_scrollbar(cx);
2074
2075 if mode == EditorMode::Full {
2076 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2077 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2078
2079 if this.git_blame_inline_enabled {
2080 this.git_blame_inline_enabled = true;
2081 this.start_git_blame_inline(false, cx);
2082 }
2083 }
2084
2085 this.report_editor_event("open", None, cx);
2086 this
2087 }
2088
2089 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2090 self.mouse_context_menu
2091 .as_ref()
2092 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2093 }
2094
2095 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2096 let mut key_context = KeyContext::new_with_defaults();
2097 key_context.add("Editor");
2098 let mode = match self.mode {
2099 EditorMode::SingleLine { .. } => "single_line",
2100 EditorMode::AutoHeight { .. } => "auto_height",
2101 EditorMode::Full => "full",
2102 };
2103
2104 if EditorSettings::jupyter_enabled(cx) {
2105 key_context.add("jupyter");
2106 }
2107
2108 key_context.set("mode", mode);
2109 if self.pending_rename.is_some() {
2110 key_context.add("renaming");
2111 }
2112 if self.context_menu_visible() {
2113 match self.context_menu.read().as_ref() {
2114 Some(ContextMenu::Completions(_)) => {
2115 key_context.add("menu");
2116 key_context.add("showing_completions")
2117 }
2118 Some(ContextMenu::CodeActions(_)) => {
2119 key_context.add("menu");
2120 key_context.add("showing_code_actions")
2121 }
2122 None => {}
2123 }
2124 }
2125
2126 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2127 if !self.focus_handle(cx).contains_focused(cx)
2128 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2129 {
2130 for addon in self.addons.values() {
2131 addon.extend_key_context(&mut key_context, cx)
2132 }
2133 }
2134
2135 if let Some(extension) = self
2136 .buffer
2137 .read(cx)
2138 .as_singleton()
2139 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2140 {
2141 key_context.set("extension", extension.to_string());
2142 }
2143
2144 if self.has_active_inline_completion(cx) {
2145 key_context.add("copilot_suggestion");
2146 key_context.add("inline_completion");
2147 }
2148
2149 key_context
2150 }
2151
2152 pub fn new_file(
2153 workspace: &mut Workspace,
2154 _: &workspace::NewFile,
2155 cx: &mut ViewContext<Workspace>,
2156 ) {
2157 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2158 "Failed to create buffer",
2159 cx,
2160 |e, _| match e.error_code() {
2161 ErrorCode::RemoteUpgradeRequired => Some(format!(
2162 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2163 e.error_tag("required").unwrap_or("the latest version")
2164 )),
2165 _ => None,
2166 },
2167 );
2168 }
2169
2170 pub fn new_in_workspace(
2171 workspace: &mut Workspace,
2172 cx: &mut ViewContext<Workspace>,
2173 ) -> Task<Result<View<Editor>>> {
2174 let project = workspace.project().clone();
2175 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2176
2177 cx.spawn(|workspace, mut cx| async move {
2178 let buffer = create.await?;
2179 workspace.update(&mut cx, |workspace, cx| {
2180 let editor =
2181 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2182 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2183 editor
2184 })
2185 })
2186 }
2187
2188 fn new_file_vertical(
2189 workspace: &mut Workspace,
2190 _: &workspace::NewFileSplitVertical,
2191 cx: &mut ViewContext<Workspace>,
2192 ) {
2193 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2194 }
2195
2196 fn new_file_horizontal(
2197 workspace: &mut Workspace,
2198 _: &workspace::NewFileSplitHorizontal,
2199 cx: &mut ViewContext<Workspace>,
2200 ) {
2201 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2202 }
2203
2204 fn new_file_in_direction(
2205 workspace: &mut Workspace,
2206 direction: SplitDirection,
2207 cx: &mut ViewContext<Workspace>,
2208 ) {
2209 let project = workspace.project().clone();
2210 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2211
2212 cx.spawn(|workspace, mut cx| async move {
2213 let buffer = create.await?;
2214 workspace.update(&mut cx, move |workspace, cx| {
2215 workspace.split_item(
2216 direction,
2217 Box::new(
2218 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2219 ),
2220 cx,
2221 )
2222 })?;
2223 anyhow::Ok(())
2224 })
2225 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2226 ErrorCode::RemoteUpgradeRequired => Some(format!(
2227 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2228 e.error_tag("required").unwrap_or("the latest version")
2229 )),
2230 _ => None,
2231 });
2232 }
2233
2234 pub fn leader_peer_id(&self) -> Option<PeerId> {
2235 self.leader_peer_id
2236 }
2237
2238 pub fn buffer(&self) -> &Model<MultiBuffer> {
2239 &self.buffer
2240 }
2241
2242 pub fn workspace(&self) -> Option<View<Workspace>> {
2243 self.workspace.as_ref()?.0.upgrade()
2244 }
2245
2246 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2247 self.buffer().read(cx).title(cx)
2248 }
2249
2250 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2251 let git_blame_gutter_max_author_length = self
2252 .render_git_blame_gutter(cx)
2253 .then(|| {
2254 if let Some(blame) = self.blame.as_ref() {
2255 let max_author_length =
2256 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2257 Some(max_author_length)
2258 } else {
2259 None
2260 }
2261 })
2262 .flatten();
2263
2264 EditorSnapshot {
2265 mode: self.mode,
2266 show_gutter: self.show_gutter,
2267 show_line_numbers: self.show_line_numbers,
2268 show_git_diff_gutter: self.show_git_diff_gutter,
2269 show_code_actions: self.show_code_actions,
2270 show_runnables: self.show_runnables,
2271 git_blame_gutter_max_author_length,
2272 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2273 scroll_anchor: self.scroll_manager.anchor(),
2274 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2275 placeholder_text: self.placeholder_text.clone(),
2276 is_focused: self.focus_handle.is_focused(cx),
2277 current_line_highlight: self
2278 .current_line_highlight
2279 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2280 gutter_hovered: self.gutter_hovered,
2281 }
2282 }
2283
2284 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2285 self.buffer.read(cx).language_at(point, cx)
2286 }
2287
2288 pub fn file_at<T: ToOffset>(
2289 &self,
2290 point: T,
2291 cx: &AppContext,
2292 ) -> Option<Arc<dyn language::File>> {
2293 self.buffer.read(cx).read(cx).file_at(point).cloned()
2294 }
2295
2296 pub fn active_excerpt(
2297 &self,
2298 cx: &AppContext,
2299 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2300 self.buffer
2301 .read(cx)
2302 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2303 }
2304
2305 pub fn mode(&self) -> EditorMode {
2306 self.mode
2307 }
2308
2309 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2310 self.collaboration_hub.as_deref()
2311 }
2312
2313 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2314 self.collaboration_hub = Some(hub);
2315 }
2316
2317 pub fn set_custom_context_menu(
2318 &mut self,
2319 f: impl 'static
2320 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2321 ) {
2322 self.custom_context_menu = Some(Box::new(f))
2323 }
2324
2325 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2326 self.completion_provider = provider;
2327 }
2328
2329 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2330 self.semantics_provider.clone()
2331 }
2332
2333 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2334 self.semantics_provider = provider;
2335 }
2336
2337 pub fn set_inline_completion_provider<T>(
2338 &mut self,
2339 provider: Option<Model<T>>,
2340 cx: &mut ViewContext<Self>,
2341 ) where
2342 T: InlineCompletionProvider,
2343 {
2344 self.inline_completion_provider =
2345 provider.map(|provider| RegisteredInlineCompletionProvider {
2346 _subscription: cx.observe(&provider, |this, _, cx| {
2347 if this.focus_handle.is_focused(cx) {
2348 this.update_visible_inline_completion(cx);
2349 }
2350 }),
2351 provider: Arc::new(provider),
2352 });
2353 self.refresh_inline_completion(false, false, cx);
2354 }
2355
2356 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2357 self.placeholder_text.as_deref()
2358 }
2359
2360 pub fn set_placeholder_text(
2361 &mut self,
2362 placeholder_text: impl Into<Arc<str>>,
2363 cx: &mut ViewContext<Self>,
2364 ) {
2365 let placeholder_text = Some(placeholder_text.into());
2366 if self.placeholder_text != placeholder_text {
2367 self.placeholder_text = placeholder_text;
2368 cx.notify();
2369 }
2370 }
2371
2372 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2373 self.cursor_shape = cursor_shape;
2374
2375 // Disrupt blink for immediate user feedback that the cursor shape has changed
2376 self.blink_manager.update(cx, BlinkManager::show_cursor);
2377
2378 cx.notify();
2379 }
2380
2381 pub fn set_current_line_highlight(
2382 &mut self,
2383 current_line_highlight: Option<CurrentLineHighlight>,
2384 ) {
2385 self.current_line_highlight = current_line_highlight;
2386 }
2387
2388 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2389 self.collapse_matches = collapse_matches;
2390 }
2391
2392 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2393 if self.collapse_matches {
2394 return range.start..range.start;
2395 }
2396 range.clone()
2397 }
2398
2399 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2400 if self.display_map.read(cx).clip_at_line_ends != clip {
2401 self.display_map
2402 .update(cx, |map, _| map.clip_at_line_ends = clip);
2403 }
2404 }
2405
2406 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2407 self.input_enabled = input_enabled;
2408 }
2409
2410 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2411 self.enable_inline_completions = enabled;
2412 }
2413
2414 pub fn set_autoindent(&mut self, autoindent: bool) {
2415 if autoindent {
2416 self.autoindent_mode = Some(AutoindentMode::EachLine);
2417 } else {
2418 self.autoindent_mode = None;
2419 }
2420 }
2421
2422 pub fn read_only(&self, cx: &AppContext) -> bool {
2423 self.read_only || self.buffer.read(cx).read_only()
2424 }
2425
2426 pub fn set_read_only(&mut self, read_only: bool) {
2427 self.read_only = read_only;
2428 }
2429
2430 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2431 self.use_autoclose = autoclose;
2432 }
2433
2434 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2435 self.use_auto_surround = auto_surround;
2436 }
2437
2438 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2439 self.auto_replace_emoji_shortcode = auto_replace;
2440 }
2441
2442 pub fn toggle_inline_completions(
2443 &mut self,
2444 _: &ToggleInlineCompletions,
2445 cx: &mut ViewContext<Self>,
2446 ) {
2447 if self.show_inline_completions_override.is_some() {
2448 self.set_show_inline_completions(None, cx);
2449 } else {
2450 let cursor = self.selections.newest_anchor().head();
2451 if let Some((buffer, cursor_buffer_position)) =
2452 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2453 {
2454 let show_inline_completions =
2455 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2456 self.set_show_inline_completions(Some(show_inline_completions), cx);
2457 }
2458 }
2459 }
2460
2461 pub fn set_show_inline_completions(
2462 &mut self,
2463 show_inline_completions: Option<bool>,
2464 cx: &mut ViewContext<Self>,
2465 ) {
2466 self.show_inline_completions_override = show_inline_completions;
2467 self.refresh_inline_completion(false, true, cx);
2468 }
2469
2470 fn should_show_inline_completions(
2471 &self,
2472 buffer: &Model<Buffer>,
2473 buffer_position: language::Anchor,
2474 cx: &AppContext,
2475 ) -> bool {
2476 if let Some(provider) = self.inline_completion_provider() {
2477 if let Some(show_inline_completions) = self.show_inline_completions_override {
2478 show_inline_completions
2479 } else {
2480 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2481 }
2482 } else {
2483 false
2484 }
2485 }
2486
2487 pub fn set_use_modal_editing(&mut self, to: bool) {
2488 self.use_modal_editing = to;
2489 }
2490
2491 pub fn use_modal_editing(&self) -> bool {
2492 self.use_modal_editing
2493 }
2494
2495 fn selections_did_change(
2496 &mut self,
2497 local: bool,
2498 old_cursor_position: &Anchor,
2499 show_completions: bool,
2500 cx: &mut ViewContext<Self>,
2501 ) {
2502 cx.invalidate_character_coordinates();
2503
2504 // Copy selections to primary selection buffer
2505 #[cfg(target_os = "linux")]
2506 if local {
2507 let selections = self.selections.all::<usize>(cx);
2508 let buffer_handle = self.buffer.read(cx).read(cx);
2509
2510 let mut text = String::new();
2511 for (index, selection) in selections.iter().enumerate() {
2512 let text_for_selection = buffer_handle
2513 .text_for_range(selection.start..selection.end)
2514 .collect::<String>();
2515
2516 text.push_str(&text_for_selection);
2517 if index != selections.len() - 1 {
2518 text.push('\n');
2519 }
2520 }
2521
2522 if !text.is_empty() {
2523 cx.write_to_primary(ClipboardItem::new_string(text));
2524 }
2525 }
2526
2527 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2528 self.buffer.update(cx, |buffer, cx| {
2529 buffer.set_active_selections(
2530 &self.selections.disjoint_anchors(),
2531 self.selections.line_mode,
2532 self.cursor_shape,
2533 cx,
2534 )
2535 });
2536 }
2537 let display_map = self
2538 .display_map
2539 .update(cx, |display_map, cx| display_map.snapshot(cx));
2540 let buffer = &display_map.buffer_snapshot;
2541 self.add_selections_state = None;
2542 self.select_next_state = None;
2543 self.select_prev_state = None;
2544 self.select_larger_syntax_node_stack.clear();
2545 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2546 self.snippet_stack
2547 .invalidate(&self.selections.disjoint_anchors(), buffer);
2548 self.take_rename(false, cx);
2549
2550 let new_cursor_position = self.selections.newest_anchor().head();
2551
2552 self.push_to_nav_history(
2553 *old_cursor_position,
2554 Some(new_cursor_position.to_point(buffer)),
2555 cx,
2556 );
2557
2558 if local {
2559 let new_cursor_position = self.selections.newest_anchor().head();
2560 let mut context_menu = self.context_menu.write();
2561 let completion_menu = match context_menu.as_ref() {
2562 Some(ContextMenu::Completions(menu)) => Some(menu),
2563
2564 _ => {
2565 *context_menu = None;
2566 None
2567 }
2568 };
2569
2570 if let Some(completion_menu) = completion_menu {
2571 let cursor_position = new_cursor_position.to_offset(buffer);
2572 let (word_range, kind) =
2573 buffer.surrounding_word(completion_menu.initial_position, true);
2574 if kind == Some(CharKind::Word)
2575 && word_range.to_inclusive().contains(&cursor_position)
2576 {
2577 let mut completion_menu = completion_menu.clone();
2578 drop(context_menu);
2579
2580 let query = Self::completion_query(buffer, cursor_position);
2581 cx.spawn(move |this, mut cx| async move {
2582 completion_menu
2583 .filter(query.as_deref(), cx.background_executor().clone())
2584 .await;
2585
2586 this.update(&mut cx, |this, cx| {
2587 let mut context_menu = this.context_menu.write();
2588 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2589 return;
2590 };
2591
2592 if menu.id > completion_menu.id {
2593 return;
2594 }
2595
2596 *context_menu = Some(ContextMenu::Completions(completion_menu));
2597 drop(context_menu);
2598 cx.notify();
2599 })
2600 })
2601 .detach();
2602
2603 if show_completions {
2604 self.show_completions(&ShowCompletions { trigger: None }, cx);
2605 }
2606 } else {
2607 drop(context_menu);
2608 self.hide_context_menu(cx);
2609 }
2610 } else {
2611 drop(context_menu);
2612 }
2613
2614 hide_hover(self, cx);
2615
2616 if old_cursor_position.to_display_point(&display_map).row()
2617 != new_cursor_position.to_display_point(&display_map).row()
2618 {
2619 self.available_code_actions.take();
2620 }
2621 self.refresh_code_actions(cx);
2622 self.refresh_document_highlights(cx);
2623 refresh_matching_bracket_highlights(self, cx);
2624 self.discard_inline_completion(false, cx);
2625 linked_editing_ranges::refresh_linked_ranges(self, cx);
2626 if self.git_blame_inline_enabled {
2627 self.start_inline_blame_timer(cx);
2628 }
2629 }
2630
2631 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2632 cx.emit(EditorEvent::SelectionsChanged { local });
2633
2634 if self.selections.disjoint_anchors().len() == 1 {
2635 cx.emit(SearchEvent::ActiveMatchChanged)
2636 }
2637 cx.notify();
2638 }
2639
2640 pub fn change_selections<R>(
2641 &mut self,
2642 autoscroll: Option<Autoscroll>,
2643 cx: &mut ViewContext<Self>,
2644 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2645 ) -> R {
2646 self.change_selections_inner(autoscroll, true, cx, change)
2647 }
2648
2649 pub fn change_selections_inner<R>(
2650 &mut self,
2651 autoscroll: Option<Autoscroll>,
2652 request_completions: bool,
2653 cx: &mut ViewContext<Self>,
2654 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2655 ) -> R {
2656 let old_cursor_position = self.selections.newest_anchor().head();
2657 self.push_to_selection_history();
2658
2659 let (changed, result) = self.selections.change_with(cx, change);
2660
2661 if changed {
2662 if let Some(autoscroll) = autoscroll {
2663 self.request_autoscroll(autoscroll, cx);
2664 }
2665 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2666
2667 if self.should_open_signature_help_automatically(
2668 &old_cursor_position,
2669 self.signature_help_state.backspace_pressed(),
2670 cx,
2671 ) {
2672 self.show_signature_help(&ShowSignatureHelp, cx);
2673 }
2674 self.signature_help_state.set_backspace_pressed(false);
2675 }
2676
2677 result
2678 }
2679
2680 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2681 where
2682 I: IntoIterator<Item = (Range<S>, T)>,
2683 S: ToOffset,
2684 T: Into<Arc<str>>,
2685 {
2686 if self.read_only(cx) {
2687 return;
2688 }
2689
2690 self.buffer
2691 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2692 }
2693
2694 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2695 where
2696 I: IntoIterator<Item = (Range<S>, T)>,
2697 S: ToOffset,
2698 T: Into<Arc<str>>,
2699 {
2700 if self.read_only(cx) {
2701 return;
2702 }
2703
2704 self.buffer.update(cx, |buffer, cx| {
2705 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2706 });
2707 }
2708
2709 pub fn edit_with_block_indent<I, S, T>(
2710 &mut self,
2711 edits: I,
2712 original_indent_columns: Vec<u32>,
2713 cx: &mut ViewContext<Self>,
2714 ) where
2715 I: IntoIterator<Item = (Range<S>, T)>,
2716 S: ToOffset,
2717 T: Into<Arc<str>>,
2718 {
2719 if self.read_only(cx) {
2720 return;
2721 }
2722
2723 self.buffer.update(cx, |buffer, cx| {
2724 buffer.edit(
2725 edits,
2726 Some(AutoindentMode::Block {
2727 original_indent_columns,
2728 }),
2729 cx,
2730 )
2731 });
2732 }
2733
2734 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2735 self.hide_context_menu(cx);
2736
2737 match phase {
2738 SelectPhase::Begin {
2739 position,
2740 add,
2741 click_count,
2742 } => self.begin_selection(position, add, click_count, cx),
2743 SelectPhase::BeginColumnar {
2744 position,
2745 goal_column,
2746 reset,
2747 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2748 SelectPhase::Extend {
2749 position,
2750 click_count,
2751 } => self.extend_selection(position, click_count, cx),
2752 SelectPhase::Update {
2753 position,
2754 goal_column,
2755 scroll_delta,
2756 } => self.update_selection(position, goal_column, scroll_delta, cx),
2757 SelectPhase::End => self.end_selection(cx),
2758 }
2759 }
2760
2761 fn extend_selection(
2762 &mut self,
2763 position: DisplayPoint,
2764 click_count: usize,
2765 cx: &mut ViewContext<Self>,
2766 ) {
2767 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2768 let tail = self.selections.newest::<usize>(cx).tail();
2769 self.begin_selection(position, false, click_count, cx);
2770
2771 let position = position.to_offset(&display_map, Bias::Left);
2772 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2773
2774 let mut pending_selection = self
2775 .selections
2776 .pending_anchor()
2777 .expect("extend_selection not called with pending selection");
2778 if position >= tail {
2779 pending_selection.start = tail_anchor;
2780 } else {
2781 pending_selection.end = tail_anchor;
2782 pending_selection.reversed = true;
2783 }
2784
2785 let mut pending_mode = self.selections.pending_mode().unwrap();
2786 match &mut pending_mode {
2787 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2788 _ => {}
2789 }
2790
2791 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2792 s.set_pending(pending_selection, pending_mode)
2793 });
2794 }
2795
2796 fn begin_selection(
2797 &mut self,
2798 position: DisplayPoint,
2799 add: bool,
2800 click_count: usize,
2801 cx: &mut ViewContext<Self>,
2802 ) {
2803 if !self.focus_handle.is_focused(cx) {
2804 self.last_focused_descendant = None;
2805 cx.focus(&self.focus_handle);
2806 }
2807
2808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2809 let buffer = &display_map.buffer_snapshot;
2810 let newest_selection = self.selections.newest_anchor().clone();
2811 let position = display_map.clip_point(position, Bias::Left);
2812
2813 let start;
2814 let end;
2815 let mode;
2816 let auto_scroll;
2817 match click_count {
2818 1 => {
2819 start = buffer.anchor_before(position.to_point(&display_map));
2820 end = start;
2821 mode = SelectMode::Character;
2822 auto_scroll = true;
2823 }
2824 2 => {
2825 let range = movement::surrounding_word(&display_map, position);
2826 start = buffer.anchor_before(range.start.to_point(&display_map));
2827 end = buffer.anchor_before(range.end.to_point(&display_map));
2828 mode = SelectMode::Word(start..end);
2829 auto_scroll = true;
2830 }
2831 3 => {
2832 let position = display_map
2833 .clip_point(position, Bias::Left)
2834 .to_point(&display_map);
2835 let line_start = display_map.prev_line_boundary(position).0;
2836 let next_line_start = buffer.clip_point(
2837 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2838 Bias::Left,
2839 );
2840 start = buffer.anchor_before(line_start);
2841 end = buffer.anchor_before(next_line_start);
2842 mode = SelectMode::Line(start..end);
2843 auto_scroll = true;
2844 }
2845 _ => {
2846 start = buffer.anchor_before(0);
2847 end = buffer.anchor_before(buffer.len());
2848 mode = SelectMode::All;
2849 auto_scroll = false;
2850 }
2851 }
2852
2853 let point_to_delete: Option<usize> = {
2854 let selected_points: Vec<Selection<Point>> =
2855 self.selections.disjoint_in_range(start..end, cx);
2856
2857 if !add || click_count > 1 {
2858 None
2859 } else if !selected_points.is_empty() {
2860 Some(selected_points[0].id)
2861 } else {
2862 let clicked_point_already_selected =
2863 self.selections.disjoint.iter().find(|selection| {
2864 selection.start.to_point(buffer) == start.to_point(buffer)
2865 || selection.end.to_point(buffer) == end.to_point(buffer)
2866 });
2867
2868 clicked_point_already_selected.map(|selection| selection.id)
2869 }
2870 };
2871
2872 let selections_count = self.selections.count();
2873
2874 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2875 if let Some(point_to_delete) = point_to_delete {
2876 s.delete(point_to_delete);
2877
2878 if selections_count == 1 {
2879 s.set_pending_anchor_range(start..end, mode);
2880 }
2881 } else {
2882 if !add {
2883 s.clear_disjoint();
2884 } else if click_count > 1 {
2885 s.delete(newest_selection.id)
2886 }
2887
2888 s.set_pending_anchor_range(start..end, mode);
2889 }
2890 });
2891 }
2892
2893 fn begin_columnar_selection(
2894 &mut self,
2895 position: DisplayPoint,
2896 goal_column: u32,
2897 reset: bool,
2898 cx: &mut ViewContext<Self>,
2899 ) {
2900 if !self.focus_handle.is_focused(cx) {
2901 self.last_focused_descendant = None;
2902 cx.focus(&self.focus_handle);
2903 }
2904
2905 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2906
2907 if reset {
2908 let pointer_position = display_map
2909 .buffer_snapshot
2910 .anchor_before(position.to_point(&display_map));
2911
2912 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2913 s.clear_disjoint();
2914 s.set_pending_anchor_range(
2915 pointer_position..pointer_position,
2916 SelectMode::Character,
2917 );
2918 });
2919 }
2920
2921 let tail = self.selections.newest::<Point>(cx).tail();
2922 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2923
2924 if !reset {
2925 self.select_columns(
2926 tail.to_display_point(&display_map),
2927 position,
2928 goal_column,
2929 &display_map,
2930 cx,
2931 );
2932 }
2933 }
2934
2935 fn update_selection(
2936 &mut self,
2937 position: DisplayPoint,
2938 goal_column: u32,
2939 scroll_delta: gpui::Point<f32>,
2940 cx: &mut ViewContext<Self>,
2941 ) {
2942 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2943
2944 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2945 let tail = tail.to_display_point(&display_map);
2946 self.select_columns(tail, position, goal_column, &display_map, cx);
2947 } else if let Some(mut pending) = self.selections.pending_anchor() {
2948 let buffer = self.buffer.read(cx).snapshot(cx);
2949 let head;
2950 let tail;
2951 let mode = self.selections.pending_mode().unwrap();
2952 match &mode {
2953 SelectMode::Character => {
2954 head = position.to_point(&display_map);
2955 tail = pending.tail().to_point(&buffer);
2956 }
2957 SelectMode::Word(original_range) => {
2958 let original_display_range = original_range.start.to_display_point(&display_map)
2959 ..original_range.end.to_display_point(&display_map);
2960 let original_buffer_range = original_display_range.start.to_point(&display_map)
2961 ..original_display_range.end.to_point(&display_map);
2962 if movement::is_inside_word(&display_map, position)
2963 || original_display_range.contains(&position)
2964 {
2965 let word_range = movement::surrounding_word(&display_map, position);
2966 if word_range.start < original_display_range.start {
2967 head = word_range.start.to_point(&display_map);
2968 } else {
2969 head = word_range.end.to_point(&display_map);
2970 }
2971 } else {
2972 head = position.to_point(&display_map);
2973 }
2974
2975 if head <= original_buffer_range.start {
2976 tail = original_buffer_range.end;
2977 } else {
2978 tail = original_buffer_range.start;
2979 }
2980 }
2981 SelectMode::Line(original_range) => {
2982 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2983
2984 let position = display_map
2985 .clip_point(position, Bias::Left)
2986 .to_point(&display_map);
2987 let line_start = display_map.prev_line_boundary(position).0;
2988 let next_line_start = buffer.clip_point(
2989 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2990 Bias::Left,
2991 );
2992
2993 if line_start < original_range.start {
2994 head = line_start
2995 } else {
2996 head = next_line_start
2997 }
2998
2999 if head <= original_range.start {
3000 tail = original_range.end;
3001 } else {
3002 tail = original_range.start;
3003 }
3004 }
3005 SelectMode::All => {
3006 return;
3007 }
3008 };
3009
3010 if head < tail {
3011 pending.start = buffer.anchor_before(head);
3012 pending.end = buffer.anchor_before(tail);
3013 pending.reversed = true;
3014 } else {
3015 pending.start = buffer.anchor_before(tail);
3016 pending.end = buffer.anchor_before(head);
3017 pending.reversed = false;
3018 }
3019
3020 self.change_selections(None, cx, |s| {
3021 s.set_pending(pending, mode);
3022 });
3023 } else {
3024 log::error!("update_selection dispatched with no pending selection");
3025 return;
3026 }
3027
3028 self.apply_scroll_delta(scroll_delta, cx);
3029 cx.notify();
3030 }
3031
3032 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3033 self.columnar_selection_tail.take();
3034 if self.selections.pending_anchor().is_some() {
3035 let selections = self.selections.all::<usize>(cx);
3036 self.change_selections(None, cx, |s| {
3037 s.select(selections);
3038 s.clear_pending();
3039 });
3040 }
3041 }
3042
3043 fn select_columns(
3044 &mut self,
3045 tail: DisplayPoint,
3046 head: DisplayPoint,
3047 goal_column: u32,
3048 display_map: &DisplaySnapshot,
3049 cx: &mut ViewContext<Self>,
3050 ) {
3051 let start_row = cmp::min(tail.row(), head.row());
3052 let end_row = cmp::max(tail.row(), head.row());
3053 let start_column = cmp::min(tail.column(), goal_column);
3054 let end_column = cmp::max(tail.column(), goal_column);
3055 let reversed = start_column < tail.column();
3056
3057 let selection_ranges = (start_row.0..=end_row.0)
3058 .map(DisplayRow)
3059 .filter_map(|row| {
3060 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3061 let start = display_map
3062 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3063 .to_point(display_map);
3064 let end = display_map
3065 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3066 .to_point(display_map);
3067 if reversed {
3068 Some(end..start)
3069 } else {
3070 Some(start..end)
3071 }
3072 } else {
3073 None
3074 }
3075 })
3076 .collect::<Vec<_>>();
3077
3078 self.change_selections(None, cx, |s| {
3079 s.select_ranges(selection_ranges);
3080 });
3081 cx.notify();
3082 }
3083
3084 pub fn has_pending_nonempty_selection(&self) -> bool {
3085 let pending_nonempty_selection = match self.selections.pending_anchor() {
3086 Some(Selection { start, end, .. }) => start != end,
3087 None => false,
3088 };
3089
3090 pending_nonempty_selection
3091 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3092 }
3093
3094 pub fn has_pending_selection(&self) -> bool {
3095 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3096 }
3097
3098 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3099 if self.clear_expanded_diff_hunks(cx) {
3100 cx.notify();
3101 return;
3102 }
3103 if self.dismiss_menus_and_popups(true, cx) {
3104 return;
3105 }
3106
3107 if self.mode == EditorMode::Full
3108 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3109 {
3110 return;
3111 }
3112
3113 cx.propagate();
3114 }
3115
3116 pub fn dismiss_menus_and_popups(
3117 &mut self,
3118 should_report_inline_completion_event: bool,
3119 cx: &mut ViewContext<Self>,
3120 ) -> bool {
3121 if self.take_rename(false, cx).is_some() {
3122 return true;
3123 }
3124
3125 if hide_hover(self, cx) {
3126 return true;
3127 }
3128
3129 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3130 return true;
3131 }
3132
3133 if self.hide_context_menu(cx).is_some() {
3134 return true;
3135 }
3136
3137 if self.mouse_context_menu.take().is_some() {
3138 return true;
3139 }
3140
3141 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3142 return true;
3143 }
3144
3145 if self.snippet_stack.pop().is_some() {
3146 return true;
3147 }
3148
3149 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3150 self.dismiss_diagnostics(cx);
3151 return true;
3152 }
3153
3154 false
3155 }
3156
3157 fn linked_editing_ranges_for(
3158 &self,
3159 selection: Range<text::Anchor>,
3160 cx: &AppContext,
3161 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3162 if self.linked_edit_ranges.is_empty() {
3163 return None;
3164 }
3165 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3166 selection.end.buffer_id.and_then(|end_buffer_id| {
3167 if selection.start.buffer_id != Some(end_buffer_id) {
3168 return None;
3169 }
3170 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3171 let snapshot = buffer.read(cx).snapshot();
3172 self.linked_edit_ranges
3173 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3174 .map(|ranges| (ranges, snapshot, buffer))
3175 })?;
3176 use text::ToOffset as TO;
3177 // find offset from the start of current range to current cursor position
3178 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3179
3180 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3181 let start_difference = start_offset - start_byte_offset;
3182 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3183 let end_difference = end_offset - start_byte_offset;
3184 // Current range has associated linked ranges.
3185 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3186 for range in linked_ranges.iter() {
3187 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3188 let end_offset = start_offset + end_difference;
3189 let start_offset = start_offset + start_difference;
3190 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3191 continue;
3192 }
3193 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3194 if s.start.buffer_id != selection.start.buffer_id
3195 || s.end.buffer_id != selection.end.buffer_id
3196 {
3197 return false;
3198 }
3199 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3200 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3201 }) {
3202 continue;
3203 }
3204 let start = buffer_snapshot.anchor_after(start_offset);
3205 let end = buffer_snapshot.anchor_after(end_offset);
3206 linked_edits
3207 .entry(buffer.clone())
3208 .or_default()
3209 .push(start..end);
3210 }
3211 Some(linked_edits)
3212 }
3213
3214 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3215 let text: Arc<str> = text.into();
3216
3217 if self.read_only(cx) {
3218 return;
3219 }
3220
3221 let selections = self.selections.all_adjusted(cx);
3222 let mut bracket_inserted = false;
3223 let mut edits = Vec::new();
3224 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3225 let mut new_selections = Vec::with_capacity(selections.len());
3226 let mut new_autoclose_regions = Vec::new();
3227 let snapshot = self.buffer.read(cx).read(cx);
3228
3229 for (selection, autoclose_region) in
3230 self.selections_with_autoclose_regions(selections, &snapshot)
3231 {
3232 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3233 // Determine if the inserted text matches the opening or closing
3234 // bracket of any of this language's bracket pairs.
3235 let mut bracket_pair = None;
3236 let mut is_bracket_pair_start = false;
3237 let mut is_bracket_pair_end = false;
3238 if !text.is_empty() {
3239 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3240 // and they are removing the character that triggered IME popup.
3241 for (pair, enabled) in scope.brackets() {
3242 if !pair.close && !pair.surround {
3243 continue;
3244 }
3245
3246 if enabled && pair.start.ends_with(text.as_ref()) {
3247 bracket_pair = Some(pair.clone());
3248 is_bracket_pair_start = true;
3249 break;
3250 }
3251 if pair.end.as_str() == text.as_ref() {
3252 bracket_pair = Some(pair.clone());
3253 is_bracket_pair_end = true;
3254 break;
3255 }
3256 }
3257 }
3258
3259 if let Some(bracket_pair) = bracket_pair {
3260 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3261 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3262 let auto_surround =
3263 self.use_auto_surround && snapshot_settings.use_auto_surround;
3264 if selection.is_empty() {
3265 if is_bracket_pair_start {
3266 let prefix_len = bracket_pair.start.len() - text.len();
3267
3268 // If the inserted text is a suffix of an opening bracket and the
3269 // selection is preceded by the rest of the opening bracket, then
3270 // insert the closing bracket.
3271 let following_text_allows_autoclose = snapshot
3272 .chars_at(selection.start)
3273 .next()
3274 .map_or(true, |c| scope.should_autoclose_before(c));
3275 let preceding_text_matches_prefix = prefix_len == 0
3276 || (selection.start.column >= (prefix_len as u32)
3277 && snapshot.contains_str_at(
3278 Point::new(
3279 selection.start.row,
3280 selection.start.column - (prefix_len as u32),
3281 ),
3282 &bracket_pair.start[..prefix_len],
3283 ));
3284
3285 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3286 && bracket_pair.start.len() == 1
3287 {
3288 let target = bracket_pair.start.chars().next().unwrap();
3289 let current_line_count = snapshot
3290 .reversed_chars_at(selection.start)
3291 .take_while(|&c| c != '\n')
3292 .filter(|&c| c == target)
3293 .count();
3294 current_line_count % 2 == 1
3295 } else {
3296 false
3297 };
3298
3299 if autoclose
3300 && bracket_pair.close
3301 && following_text_allows_autoclose
3302 && preceding_text_matches_prefix
3303 && !is_closing_quote
3304 {
3305 let anchor = snapshot.anchor_before(selection.end);
3306 new_selections.push((selection.map(|_| anchor), text.len()));
3307 new_autoclose_regions.push((
3308 anchor,
3309 text.len(),
3310 selection.id,
3311 bracket_pair.clone(),
3312 ));
3313 edits.push((
3314 selection.range(),
3315 format!("{}{}", text, bracket_pair.end).into(),
3316 ));
3317 bracket_inserted = true;
3318 continue;
3319 }
3320 }
3321
3322 if let Some(region) = autoclose_region {
3323 // If the selection is followed by an auto-inserted closing bracket,
3324 // then don't insert that closing bracket again; just move the selection
3325 // past the closing bracket.
3326 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3327 && text.as_ref() == region.pair.end.as_str();
3328 if should_skip {
3329 let anchor = snapshot.anchor_after(selection.end);
3330 new_selections
3331 .push((selection.map(|_| anchor), region.pair.end.len()));
3332 continue;
3333 }
3334 }
3335
3336 let always_treat_brackets_as_autoclosed = snapshot
3337 .settings_at(selection.start, cx)
3338 .always_treat_brackets_as_autoclosed;
3339 if always_treat_brackets_as_autoclosed
3340 && is_bracket_pair_end
3341 && snapshot.contains_str_at(selection.end, text.as_ref())
3342 {
3343 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3344 // and the inserted text is a closing bracket and the selection is followed
3345 // by the closing bracket then move the selection past the closing bracket.
3346 let anchor = snapshot.anchor_after(selection.end);
3347 new_selections.push((selection.map(|_| anchor), text.len()));
3348 continue;
3349 }
3350 }
3351 // If an opening bracket is 1 character long and is typed while
3352 // text is selected, then surround that text with the bracket pair.
3353 else if auto_surround
3354 && bracket_pair.surround
3355 && is_bracket_pair_start
3356 && bracket_pair.start.chars().count() == 1
3357 {
3358 edits.push((selection.start..selection.start, text.clone()));
3359 edits.push((
3360 selection.end..selection.end,
3361 bracket_pair.end.as_str().into(),
3362 ));
3363 bracket_inserted = true;
3364 new_selections.push((
3365 Selection {
3366 id: selection.id,
3367 start: snapshot.anchor_after(selection.start),
3368 end: snapshot.anchor_before(selection.end),
3369 reversed: selection.reversed,
3370 goal: selection.goal,
3371 },
3372 0,
3373 ));
3374 continue;
3375 }
3376 }
3377 }
3378
3379 if self.auto_replace_emoji_shortcode
3380 && selection.is_empty()
3381 && text.as_ref().ends_with(':')
3382 {
3383 if let Some(possible_emoji_short_code) =
3384 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3385 {
3386 if !possible_emoji_short_code.is_empty() {
3387 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3388 let emoji_shortcode_start = Point::new(
3389 selection.start.row,
3390 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3391 );
3392
3393 // Remove shortcode from buffer
3394 edits.push((
3395 emoji_shortcode_start..selection.start,
3396 "".to_string().into(),
3397 ));
3398 new_selections.push((
3399 Selection {
3400 id: selection.id,
3401 start: snapshot.anchor_after(emoji_shortcode_start),
3402 end: snapshot.anchor_before(selection.start),
3403 reversed: selection.reversed,
3404 goal: selection.goal,
3405 },
3406 0,
3407 ));
3408
3409 // Insert emoji
3410 let selection_start_anchor = snapshot.anchor_after(selection.start);
3411 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3412 edits.push((selection.start..selection.end, emoji.to_string().into()));
3413
3414 continue;
3415 }
3416 }
3417 }
3418 }
3419
3420 // If not handling any auto-close operation, then just replace the selected
3421 // text with the given input and move the selection to the end of the
3422 // newly inserted text.
3423 let anchor = snapshot.anchor_after(selection.end);
3424 if !self.linked_edit_ranges.is_empty() {
3425 let start_anchor = snapshot.anchor_before(selection.start);
3426
3427 let is_word_char = text.chars().next().map_or(true, |char| {
3428 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3429 classifier.is_word(char)
3430 });
3431
3432 if is_word_char {
3433 if let Some(ranges) = self
3434 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3435 {
3436 for (buffer, edits) in ranges {
3437 linked_edits
3438 .entry(buffer.clone())
3439 .or_default()
3440 .extend(edits.into_iter().map(|range| (range, text.clone())));
3441 }
3442 }
3443 }
3444 }
3445
3446 new_selections.push((selection.map(|_| anchor), 0));
3447 edits.push((selection.start..selection.end, text.clone()));
3448 }
3449
3450 drop(snapshot);
3451
3452 self.transact(cx, |this, cx| {
3453 this.buffer.update(cx, |buffer, cx| {
3454 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3455 });
3456 for (buffer, edits) in linked_edits {
3457 buffer.update(cx, |buffer, cx| {
3458 let snapshot = buffer.snapshot();
3459 let edits = edits
3460 .into_iter()
3461 .map(|(range, text)| {
3462 use text::ToPoint as TP;
3463 let end_point = TP::to_point(&range.end, &snapshot);
3464 let start_point = TP::to_point(&range.start, &snapshot);
3465 (start_point..end_point, text)
3466 })
3467 .sorted_by_key(|(range, _)| range.start)
3468 .collect::<Vec<_>>();
3469 buffer.edit(edits, None, cx);
3470 })
3471 }
3472 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3473 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3474 let snapshot = this.buffer.read(cx).read(cx);
3475 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3476 .zip(new_selection_deltas)
3477 .map(|(selection, delta)| Selection {
3478 id: selection.id,
3479 start: selection.start + delta,
3480 end: selection.end + delta,
3481 reversed: selection.reversed,
3482 goal: SelectionGoal::None,
3483 })
3484 .collect::<Vec<_>>();
3485
3486 let mut i = 0;
3487 for (position, delta, selection_id, pair) in new_autoclose_regions {
3488 let position = position.to_offset(&snapshot) + delta;
3489 let start = snapshot.anchor_before(position);
3490 let end = snapshot.anchor_after(position);
3491 while let Some(existing_state) = this.autoclose_regions.get(i) {
3492 match existing_state.range.start.cmp(&start, &snapshot) {
3493 Ordering::Less => i += 1,
3494 Ordering::Greater => break,
3495 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3496 Ordering::Less => i += 1,
3497 Ordering::Equal => break,
3498 Ordering::Greater => break,
3499 },
3500 }
3501 }
3502 this.autoclose_regions.insert(
3503 i,
3504 AutocloseRegion {
3505 selection_id,
3506 range: start..end,
3507 pair,
3508 },
3509 );
3510 }
3511
3512 drop(snapshot);
3513 let had_active_inline_completion = this.has_active_inline_completion(cx);
3514 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3515 s.select(new_selections)
3516 });
3517
3518 if !bracket_inserted {
3519 if let Some(on_type_format_task) =
3520 this.trigger_on_type_formatting(text.to_string(), cx)
3521 {
3522 on_type_format_task.detach_and_log_err(cx);
3523 }
3524 }
3525
3526 let editor_settings = EditorSettings::get_global(cx);
3527 if bracket_inserted
3528 && (editor_settings.auto_signature_help
3529 || editor_settings.show_signature_help_after_edits)
3530 {
3531 this.show_signature_help(&ShowSignatureHelp, cx);
3532 }
3533
3534 let trigger_in_words = !had_active_inline_completion;
3535 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3536 linked_editing_ranges::refresh_linked_ranges(this, cx);
3537 this.refresh_inline_completion(true, false, cx);
3538 });
3539 }
3540
3541 fn find_possible_emoji_shortcode_at_position(
3542 snapshot: &MultiBufferSnapshot,
3543 position: Point,
3544 ) -> Option<String> {
3545 let mut chars = Vec::new();
3546 let mut found_colon = false;
3547 for char in snapshot.reversed_chars_at(position).take(100) {
3548 // Found a possible emoji shortcode in the middle of the buffer
3549 if found_colon {
3550 if char.is_whitespace() {
3551 chars.reverse();
3552 return Some(chars.iter().collect());
3553 }
3554 // If the previous character is not a whitespace, we are in the middle of a word
3555 // and we only want to complete the shortcode if the word is made up of other emojis
3556 let mut containing_word = String::new();
3557 for ch in snapshot
3558 .reversed_chars_at(position)
3559 .skip(chars.len() + 1)
3560 .take(100)
3561 {
3562 if ch.is_whitespace() {
3563 break;
3564 }
3565 containing_word.push(ch);
3566 }
3567 let containing_word = containing_word.chars().rev().collect::<String>();
3568 if util::word_consists_of_emojis(containing_word.as_str()) {
3569 chars.reverse();
3570 return Some(chars.iter().collect());
3571 }
3572 }
3573
3574 if char.is_whitespace() || !char.is_ascii() {
3575 return None;
3576 }
3577 if char == ':' {
3578 found_colon = true;
3579 } else {
3580 chars.push(char);
3581 }
3582 }
3583 // Found a possible emoji shortcode at the beginning of the buffer
3584 chars.reverse();
3585 Some(chars.iter().collect())
3586 }
3587
3588 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3589 self.transact(cx, |this, cx| {
3590 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3591 let selections = this.selections.all::<usize>(cx);
3592 let multi_buffer = this.buffer.read(cx);
3593 let buffer = multi_buffer.snapshot(cx);
3594 selections
3595 .iter()
3596 .map(|selection| {
3597 let start_point = selection.start.to_point(&buffer);
3598 let mut indent =
3599 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3600 indent.len = cmp::min(indent.len, start_point.column);
3601 let start = selection.start;
3602 let end = selection.end;
3603 let selection_is_empty = start == end;
3604 let language_scope = buffer.language_scope_at(start);
3605 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3606 &language_scope
3607 {
3608 let leading_whitespace_len = buffer
3609 .reversed_chars_at(start)
3610 .take_while(|c| c.is_whitespace() && *c != '\n')
3611 .map(|c| c.len_utf8())
3612 .sum::<usize>();
3613
3614 let trailing_whitespace_len = buffer
3615 .chars_at(end)
3616 .take_while(|c| c.is_whitespace() && *c != '\n')
3617 .map(|c| c.len_utf8())
3618 .sum::<usize>();
3619
3620 let insert_extra_newline =
3621 language.brackets().any(|(pair, enabled)| {
3622 let pair_start = pair.start.trim_end();
3623 let pair_end = pair.end.trim_start();
3624
3625 enabled
3626 && pair.newline
3627 && buffer.contains_str_at(
3628 end + trailing_whitespace_len,
3629 pair_end,
3630 )
3631 && buffer.contains_str_at(
3632 (start - leading_whitespace_len)
3633 .saturating_sub(pair_start.len()),
3634 pair_start,
3635 )
3636 });
3637
3638 // Comment extension on newline is allowed only for cursor selections
3639 let comment_delimiter = maybe!({
3640 if !selection_is_empty {
3641 return None;
3642 }
3643
3644 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3645 return None;
3646 }
3647
3648 let delimiters = language.line_comment_prefixes();
3649 let max_len_of_delimiter =
3650 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3651 let (snapshot, range) =
3652 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3653
3654 let mut index_of_first_non_whitespace = 0;
3655 let comment_candidate = snapshot
3656 .chars_for_range(range)
3657 .skip_while(|c| {
3658 let should_skip = c.is_whitespace();
3659 if should_skip {
3660 index_of_first_non_whitespace += 1;
3661 }
3662 should_skip
3663 })
3664 .take(max_len_of_delimiter)
3665 .collect::<String>();
3666 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3667 comment_candidate.starts_with(comment_prefix.as_ref())
3668 })?;
3669 let cursor_is_placed_after_comment_marker =
3670 index_of_first_non_whitespace + comment_prefix.len()
3671 <= start_point.column as usize;
3672 if cursor_is_placed_after_comment_marker {
3673 Some(comment_prefix.clone())
3674 } else {
3675 None
3676 }
3677 });
3678 (comment_delimiter, insert_extra_newline)
3679 } else {
3680 (None, false)
3681 };
3682
3683 let capacity_for_delimiter = comment_delimiter
3684 .as_deref()
3685 .map(str::len)
3686 .unwrap_or_default();
3687 let mut new_text =
3688 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3689 new_text.push('\n');
3690 new_text.extend(indent.chars());
3691 if let Some(delimiter) = &comment_delimiter {
3692 new_text.push_str(delimiter);
3693 }
3694 if insert_extra_newline {
3695 new_text = new_text.repeat(2);
3696 }
3697
3698 let anchor = buffer.anchor_after(end);
3699 let new_selection = selection.map(|_| anchor);
3700 (
3701 (start..end, new_text),
3702 (insert_extra_newline, new_selection),
3703 )
3704 })
3705 .unzip()
3706 };
3707
3708 this.edit_with_autoindent(edits, cx);
3709 let buffer = this.buffer.read(cx).snapshot(cx);
3710 let new_selections = selection_fixup_info
3711 .into_iter()
3712 .map(|(extra_newline_inserted, new_selection)| {
3713 let mut cursor = new_selection.end.to_point(&buffer);
3714 if extra_newline_inserted {
3715 cursor.row -= 1;
3716 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3717 }
3718 new_selection.map(|_| cursor)
3719 })
3720 .collect();
3721
3722 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3723 this.refresh_inline_completion(true, false, cx);
3724 });
3725 }
3726
3727 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3728 let buffer = self.buffer.read(cx);
3729 let snapshot = buffer.snapshot(cx);
3730
3731 let mut edits = Vec::new();
3732 let mut rows = Vec::new();
3733
3734 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3735 let cursor = selection.head();
3736 let row = cursor.row;
3737
3738 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3739
3740 let newline = "\n".to_string();
3741 edits.push((start_of_line..start_of_line, newline));
3742
3743 rows.push(row + rows_inserted as u32);
3744 }
3745
3746 self.transact(cx, |editor, cx| {
3747 editor.edit(edits, cx);
3748
3749 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3750 let mut index = 0;
3751 s.move_cursors_with(|map, _, _| {
3752 let row = rows[index];
3753 index += 1;
3754
3755 let point = Point::new(row, 0);
3756 let boundary = map.next_line_boundary(point).1;
3757 let clipped = map.clip_point(boundary, Bias::Left);
3758
3759 (clipped, SelectionGoal::None)
3760 });
3761 });
3762
3763 let mut indent_edits = Vec::new();
3764 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3765 for row in rows {
3766 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3767 for (row, indent) in indents {
3768 if indent.len == 0 {
3769 continue;
3770 }
3771
3772 let text = match indent.kind {
3773 IndentKind::Space => " ".repeat(indent.len as usize),
3774 IndentKind::Tab => "\t".repeat(indent.len as usize),
3775 };
3776 let point = Point::new(row.0, 0);
3777 indent_edits.push((point..point, text));
3778 }
3779 }
3780 editor.edit(indent_edits, cx);
3781 });
3782 }
3783
3784 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3785 let buffer = self.buffer.read(cx);
3786 let snapshot = buffer.snapshot(cx);
3787
3788 let mut edits = Vec::new();
3789 let mut rows = Vec::new();
3790 let mut rows_inserted = 0;
3791
3792 for selection in self.selections.all_adjusted(cx) {
3793 let cursor = selection.head();
3794 let row = cursor.row;
3795
3796 let point = Point::new(row + 1, 0);
3797 let start_of_line = snapshot.clip_point(point, Bias::Left);
3798
3799 let newline = "\n".to_string();
3800 edits.push((start_of_line..start_of_line, newline));
3801
3802 rows_inserted += 1;
3803 rows.push(row + rows_inserted);
3804 }
3805
3806 self.transact(cx, |editor, cx| {
3807 editor.edit(edits, cx);
3808
3809 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3810 let mut index = 0;
3811 s.move_cursors_with(|map, _, _| {
3812 let row = rows[index];
3813 index += 1;
3814
3815 let point = Point::new(row, 0);
3816 let boundary = map.next_line_boundary(point).1;
3817 let clipped = map.clip_point(boundary, Bias::Left);
3818
3819 (clipped, SelectionGoal::None)
3820 });
3821 });
3822
3823 let mut indent_edits = Vec::new();
3824 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3825 for row in rows {
3826 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3827 for (row, indent) in indents {
3828 if indent.len == 0 {
3829 continue;
3830 }
3831
3832 let text = match indent.kind {
3833 IndentKind::Space => " ".repeat(indent.len as usize),
3834 IndentKind::Tab => "\t".repeat(indent.len as usize),
3835 };
3836 let point = Point::new(row.0, 0);
3837 indent_edits.push((point..point, text));
3838 }
3839 }
3840 editor.edit(indent_edits, cx);
3841 });
3842 }
3843
3844 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3845 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3846 original_indent_columns: Vec::new(),
3847 });
3848 self.insert_with_autoindent_mode(text, autoindent, cx);
3849 }
3850
3851 fn insert_with_autoindent_mode(
3852 &mut self,
3853 text: &str,
3854 autoindent_mode: Option<AutoindentMode>,
3855 cx: &mut ViewContext<Self>,
3856 ) {
3857 if self.read_only(cx) {
3858 return;
3859 }
3860
3861 let text: Arc<str> = text.into();
3862 self.transact(cx, |this, cx| {
3863 let old_selections = this.selections.all_adjusted(cx);
3864 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3865 let anchors = {
3866 let snapshot = buffer.read(cx);
3867 old_selections
3868 .iter()
3869 .map(|s| {
3870 let anchor = snapshot.anchor_after(s.head());
3871 s.map(|_| anchor)
3872 })
3873 .collect::<Vec<_>>()
3874 };
3875 buffer.edit(
3876 old_selections
3877 .iter()
3878 .map(|s| (s.start..s.end, text.clone())),
3879 autoindent_mode,
3880 cx,
3881 );
3882 anchors
3883 });
3884
3885 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3886 s.select_anchors(selection_anchors);
3887 })
3888 });
3889 }
3890
3891 fn trigger_completion_on_input(
3892 &mut self,
3893 text: &str,
3894 trigger_in_words: bool,
3895 cx: &mut ViewContext<Self>,
3896 ) {
3897 if self.is_completion_trigger(text, trigger_in_words, cx) {
3898 self.show_completions(
3899 &ShowCompletions {
3900 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3901 },
3902 cx,
3903 );
3904 } else {
3905 self.hide_context_menu(cx);
3906 }
3907 }
3908
3909 fn is_completion_trigger(
3910 &self,
3911 text: &str,
3912 trigger_in_words: bool,
3913 cx: &mut ViewContext<Self>,
3914 ) -> bool {
3915 let position = self.selections.newest_anchor().head();
3916 let multibuffer = self.buffer.read(cx);
3917 let Some(buffer) = position
3918 .buffer_id
3919 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3920 else {
3921 return false;
3922 };
3923
3924 if let Some(completion_provider) = &self.completion_provider {
3925 completion_provider.is_completion_trigger(
3926 &buffer,
3927 position.text_anchor,
3928 text,
3929 trigger_in_words,
3930 cx,
3931 )
3932 } else {
3933 false
3934 }
3935 }
3936
3937 /// If any empty selections is touching the start of its innermost containing autoclose
3938 /// region, expand it to select the brackets.
3939 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3940 let selections = self.selections.all::<usize>(cx);
3941 let buffer = self.buffer.read(cx).read(cx);
3942 let new_selections = self
3943 .selections_with_autoclose_regions(selections, &buffer)
3944 .map(|(mut selection, region)| {
3945 if !selection.is_empty() {
3946 return selection;
3947 }
3948
3949 if let Some(region) = region {
3950 let mut range = region.range.to_offset(&buffer);
3951 if selection.start == range.start && range.start >= region.pair.start.len() {
3952 range.start -= region.pair.start.len();
3953 if buffer.contains_str_at(range.start, ®ion.pair.start)
3954 && buffer.contains_str_at(range.end, ®ion.pair.end)
3955 {
3956 range.end += region.pair.end.len();
3957 selection.start = range.start;
3958 selection.end = range.end;
3959
3960 return selection;
3961 }
3962 }
3963 }
3964
3965 let always_treat_brackets_as_autoclosed = buffer
3966 .settings_at(selection.start, cx)
3967 .always_treat_brackets_as_autoclosed;
3968
3969 if !always_treat_brackets_as_autoclosed {
3970 return selection;
3971 }
3972
3973 if let Some(scope) = buffer.language_scope_at(selection.start) {
3974 for (pair, enabled) in scope.brackets() {
3975 if !enabled || !pair.close {
3976 continue;
3977 }
3978
3979 if buffer.contains_str_at(selection.start, &pair.end) {
3980 let pair_start_len = pair.start.len();
3981 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3982 {
3983 selection.start -= pair_start_len;
3984 selection.end += pair.end.len();
3985
3986 return selection;
3987 }
3988 }
3989 }
3990 }
3991
3992 selection
3993 })
3994 .collect();
3995
3996 drop(buffer);
3997 self.change_selections(None, cx, |selections| selections.select(new_selections));
3998 }
3999
4000 /// Iterate the given selections, and for each one, find the smallest surrounding
4001 /// autoclose region. This uses the ordering of the selections and the autoclose
4002 /// regions to avoid repeated comparisons.
4003 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4004 &'a self,
4005 selections: impl IntoIterator<Item = Selection<D>>,
4006 buffer: &'a MultiBufferSnapshot,
4007 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4008 let mut i = 0;
4009 let mut regions = self.autoclose_regions.as_slice();
4010 selections.into_iter().map(move |selection| {
4011 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4012
4013 let mut enclosing = None;
4014 while let Some(pair_state) = regions.get(i) {
4015 if pair_state.range.end.to_offset(buffer) < range.start {
4016 regions = ®ions[i + 1..];
4017 i = 0;
4018 } else if pair_state.range.start.to_offset(buffer) > range.end {
4019 break;
4020 } else {
4021 if pair_state.selection_id == selection.id {
4022 enclosing = Some(pair_state);
4023 }
4024 i += 1;
4025 }
4026 }
4027
4028 (selection.clone(), enclosing)
4029 })
4030 }
4031
4032 /// Remove any autoclose regions that no longer contain their selection.
4033 fn invalidate_autoclose_regions(
4034 &mut self,
4035 mut selections: &[Selection<Anchor>],
4036 buffer: &MultiBufferSnapshot,
4037 ) {
4038 self.autoclose_regions.retain(|state| {
4039 let mut i = 0;
4040 while let Some(selection) = selections.get(i) {
4041 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4042 selections = &selections[1..];
4043 continue;
4044 }
4045 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4046 break;
4047 }
4048 if selection.id == state.selection_id {
4049 return true;
4050 } else {
4051 i += 1;
4052 }
4053 }
4054 false
4055 });
4056 }
4057
4058 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4059 let offset = position.to_offset(buffer);
4060 let (word_range, kind) = buffer.surrounding_word(offset, true);
4061 if offset > word_range.start && kind == Some(CharKind::Word) {
4062 Some(
4063 buffer
4064 .text_for_range(word_range.start..offset)
4065 .collect::<String>(),
4066 )
4067 } else {
4068 None
4069 }
4070 }
4071
4072 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4073 self.refresh_inlay_hints(
4074 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4075 cx,
4076 );
4077 }
4078
4079 pub fn inlay_hints_enabled(&self) -> bool {
4080 self.inlay_hint_cache.enabled
4081 }
4082
4083 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4084 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4085 return;
4086 }
4087
4088 let reason_description = reason.description();
4089 let ignore_debounce = matches!(
4090 reason,
4091 InlayHintRefreshReason::SettingsChange(_)
4092 | InlayHintRefreshReason::Toggle(_)
4093 | InlayHintRefreshReason::ExcerptsRemoved(_)
4094 );
4095 let (invalidate_cache, required_languages) = match reason {
4096 InlayHintRefreshReason::Toggle(enabled) => {
4097 self.inlay_hint_cache.enabled = enabled;
4098 if enabled {
4099 (InvalidationStrategy::RefreshRequested, None)
4100 } else {
4101 self.inlay_hint_cache.clear();
4102 self.splice_inlays(
4103 self.visible_inlay_hints(cx)
4104 .iter()
4105 .map(|inlay| inlay.id)
4106 .collect(),
4107 Vec::new(),
4108 cx,
4109 );
4110 return;
4111 }
4112 }
4113 InlayHintRefreshReason::SettingsChange(new_settings) => {
4114 match self.inlay_hint_cache.update_settings(
4115 &self.buffer,
4116 new_settings,
4117 self.visible_inlay_hints(cx),
4118 cx,
4119 ) {
4120 ControlFlow::Break(Some(InlaySplice {
4121 to_remove,
4122 to_insert,
4123 })) => {
4124 self.splice_inlays(to_remove, to_insert, cx);
4125 return;
4126 }
4127 ControlFlow::Break(None) => return,
4128 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4129 }
4130 }
4131 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4132 if let Some(InlaySplice {
4133 to_remove,
4134 to_insert,
4135 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4136 {
4137 self.splice_inlays(to_remove, to_insert, cx);
4138 }
4139 return;
4140 }
4141 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4142 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4143 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4144 }
4145 InlayHintRefreshReason::RefreshRequested => {
4146 (InvalidationStrategy::RefreshRequested, None)
4147 }
4148 };
4149
4150 if let Some(InlaySplice {
4151 to_remove,
4152 to_insert,
4153 }) = self.inlay_hint_cache.spawn_hint_refresh(
4154 reason_description,
4155 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4156 invalidate_cache,
4157 ignore_debounce,
4158 cx,
4159 ) {
4160 self.splice_inlays(to_remove, to_insert, cx);
4161 }
4162 }
4163
4164 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4165 self.display_map
4166 .read(cx)
4167 .current_inlays()
4168 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4169 .cloned()
4170 .collect()
4171 }
4172
4173 pub fn excerpts_for_inlay_hints_query(
4174 &self,
4175 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4176 cx: &mut ViewContext<Editor>,
4177 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4178 let Some(project) = self.project.as_ref() else {
4179 return HashMap::default();
4180 };
4181 let project = project.read(cx);
4182 let multi_buffer = self.buffer().read(cx);
4183 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4184 let multi_buffer_visible_start = self
4185 .scroll_manager
4186 .anchor()
4187 .anchor
4188 .to_point(&multi_buffer_snapshot);
4189 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4190 multi_buffer_visible_start
4191 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4192 Bias::Left,
4193 );
4194 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4195 multi_buffer
4196 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4197 .into_iter()
4198 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4199 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4200 let buffer = buffer_handle.read(cx);
4201 let buffer_file = project::File::from_dyn(buffer.file())?;
4202 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4203 let worktree_entry = buffer_worktree
4204 .read(cx)
4205 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4206 if worktree_entry.is_ignored {
4207 return None;
4208 }
4209
4210 let language = buffer.language()?;
4211 if let Some(restrict_to_languages) = restrict_to_languages {
4212 if !restrict_to_languages.contains(language) {
4213 return None;
4214 }
4215 }
4216 Some((
4217 excerpt_id,
4218 (
4219 buffer_handle,
4220 buffer.version().clone(),
4221 excerpt_visible_range,
4222 ),
4223 ))
4224 })
4225 .collect()
4226 }
4227
4228 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4229 TextLayoutDetails {
4230 text_system: cx.text_system().clone(),
4231 editor_style: self.style.clone().unwrap(),
4232 rem_size: cx.rem_size(),
4233 scroll_anchor: self.scroll_manager.anchor(),
4234 visible_rows: self.visible_line_count(),
4235 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4236 }
4237 }
4238
4239 fn splice_inlays(
4240 &self,
4241 to_remove: Vec<InlayId>,
4242 to_insert: Vec<Inlay>,
4243 cx: &mut ViewContext<Self>,
4244 ) {
4245 self.display_map.update(cx, |display_map, cx| {
4246 display_map.splice_inlays(to_remove, to_insert, cx);
4247 });
4248 cx.notify();
4249 }
4250
4251 fn trigger_on_type_formatting(
4252 &self,
4253 input: String,
4254 cx: &mut ViewContext<Self>,
4255 ) -> Option<Task<Result<()>>> {
4256 if input.len() != 1 {
4257 return None;
4258 }
4259
4260 let project = self.project.as_ref()?;
4261 let position = self.selections.newest_anchor().head();
4262 let (buffer, buffer_position) = self
4263 .buffer
4264 .read(cx)
4265 .text_anchor_for_position(position, cx)?;
4266
4267 let settings = language_settings::language_settings(
4268 buffer
4269 .read(cx)
4270 .language_at(buffer_position)
4271 .map(|l| l.name()),
4272 buffer.read(cx).file(),
4273 cx,
4274 );
4275 if !settings.use_on_type_format {
4276 return None;
4277 }
4278
4279 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4280 // hence we do LSP request & edit on host side only — add formats to host's history.
4281 let push_to_lsp_host_history = true;
4282 // If this is not the host, append its history with new edits.
4283 let push_to_client_history = project.read(cx).is_via_collab();
4284
4285 let on_type_formatting = project.update(cx, |project, cx| {
4286 project.on_type_format(
4287 buffer.clone(),
4288 buffer_position,
4289 input,
4290 push_to_lsp_host_history,
4291 cx,
4292 )
4293 });
4294 Some(cx.spawn(|editor, mut cx| async move {
4295 if let Some(transaction) = on_type_formatting.await? {
4296 if push_to_client_history {
4297 buffer
4298 .update(&mut cx, |buffer, _| {
4299 buffer.push_transaction(transaction, Instant::now());
4300 })
4301 .ok();
4302 }
4303 editor.update(&mut cx, |editor, cx| {
4304 editor.refresh_document_highlights(cx);
4305 })?;
4306 }
4307 Ok(())
4308 }))
4309 }
4310
4311 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4312 if self.pending_rename.is_some() {
4313 return;
4314 }
4315
4316 let Some(provider) = self.completion_provider.as_ref() else {
4317 return;
4318 };
4319
4320 let position = self.selections.newest_anchor().head();
4321 let (buffer, buffer_position) =
4322 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4323 output
4324 } else {
4325 return;
4326 };
4327
4328 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4329 let is_followup_invoke = {
4330 let context_menu_state = self.context_menu.read();
4331 matches!(
4332 context_menu_state.deref(),
4333 Some(ContextMenu::Completions(_))
4334 )
4335 };
4336 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4337 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4338 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4339 CompletionTriggerKind::TRIGGER_CHARACTER
4340 }
4341
4342 _ => CompletionTriggerKind::INVOKED,
4343 };
4344 let completion_context = CompletionContext {
4345 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4346 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4347 Some(String::from(trigger))
4348 } else {
4349 None
4350 }
4351 }),
4352 trigger_kind,
4353 };
4354 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4355 let sort_completions = provider.sort_completions();
4356
4357 let id = post_inc(&mut self.next_completion_id);
4358 let task = cx.spawn(|this, mut cx| {
4359 async move {
4360 this.update(&mut cx, |this, _| {
4361 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4362 })?;
4363 let completions = completions.await.log_err();
4364 let menu = if let Some(completions) = completions {
4365 let mut menu = CompletionsMenu {
4366 id,
4367 sort_completions,
4368 initial_position: position,
4369 match_candidates: completions
4370 .iter()
4371 .enumerate()
4372 .map(|(id, completion)| {
4373 StringMatchCandidate::new(
4374 id,
4375 completion.label.text[completion.label.filter_range.clone()]
4376 .into(),
4377 )
4378 })
4379 .collect(),
4380 buffer: buffer.clone(),
4381 completions: Arc::new(RwLock::new(completions.into())),
4382 matches: Vec::new().into(),
4383 selected_item: 0,
4384 scroll_handle: UniformListScrollHandle::new(),
4385 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4386 DebouncedDelay::new(),
4387 )),
4388 };
4389 menu.filter(query.as_deref(), cx.background_executor().clone())
4390 .await;
4391
4392 if menu.matches.is_empty() {
4393 None
4394 } else {
4395 this.update(&mut cx, |editor, cx| {
4396 let completions = menu.completions.clone();
4397 let matches = menu.matches.clone();
4398
4399 let delay_ms = EditorSettings::get_global(cx)
4400 .completion_documentation_secondary_query_debounce;
4401 let delay = Duration::from_millis(delay_ms);
4402 editor
4403 .completion_documentation_pre_resolve_debounce
4404 .fire_new(delay, cx, |editor, cx| {
4405 CompletionsMenu::pre_resolve_completion_documentation(
4406 buffer,
4407 completions,
4408 matches,
4409 editor,
4410 cx,
4411 )
4412 });
4413 })
4414 .ok();
4415 Some(menu)
4416 }
4417 } else {
4418 None
4419 };
4420
4421 this.update(&mut cx, |this, cx| {
4422 let mut context_menu = this.context_menu.write();
4423 match context_menu.as_ref() {
4424 None => {}
4425
4426 Some(ContextMenu::Completions(prev_menu)) => {
4427 if prev_menu.id > id {
4428 return;
4429 }
4430 }
4431
4432 _ => return,
4433 }
4434
4435 if this.focus_handle.is_focused(cx) && menu.is_some() {
4436 let menu = menu.unwrap();
4437 *context_menu = Some(ContextMenu::Completions(menu));
4438 drop(context_menu);
4439 this.discard_inline_completion(false, cx);
4440 cx.notify();
4441 } else if this.completion_tasks.len() <= 1 {
4442 // If there are no more completion tasks and the last menu was
4443 // empty, we should hide it. If it was already hidden, we should
4444 // also show the copilot completion when available.
4445 drop(context_menu);
4446 if this.hide_context_menu(cx).is_none() {
4447 this.update_visible_inline_completion(cx);
4448 }
4449 }
4450 })?;
4451
4452 Ok::<_, anyhow::Error>(())
4453 }
4454 .log_err()
4455 });
4456
4457 self.completion_tasks.push((id, task));
4458 }
4459
4460 pub fn confirm_completion(
4461 &mut self,
4462 action: &ConfirmCompletion,
4463 cx: &mut ViewContext<Self>,
4464 ) -> Option<Task<Result<()>>> {
4465 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4466 }
4467
4468 pub fn compose_completion(
4469 &mut self,
4470 action: &ComposeCompletion,
4471 cx: &mut ViewContext<Self>,
4472 ) -> Option<Task<Result<()>>> {
4473 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4474 }
4475
4476 fn do_completion(
4477 &mut self,
4478 item_ix: Option<usize>,
4479 intent: CompletionIntent,
4480 cx: &mut ViewContext<Editor>,
4481 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4482 use language::ToOffset as _;
4483
4484 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4485 menu
4486 } else {
4487 return None;
4488 };
4489
4490 let mat = completions_menu
4491 .matches
4492 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4493 let buffer_handle = completions_menu.buffer;
4494 let completions = completions_menu.completions.read();
4495 let completion = completions.get(mat.candidate_id)?;
4496 cx.stop_propagation();
4497
4498 let snippet;
4499 let text;
4500
4501 if completion.is_snippet() {
4502 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4503 text = snippet.as_ref().unwrap().text.clone();
4504 } else {
4505 snippet = None;
4506 text = completion.new_text.clone();
4507 };
4508 let selections = self.selections.all::<usize>(cx);
4509 let buffer = buffer_handle.read(cx);
4510 let old_range = completion.old_range.to_offset(buffer);
4511 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4512
4513 let newest_selection = self.selections.newest_anchor();
4514 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4515 return None;
4516 }
4517
4518 let lookbehind = newest_selection
4519 .start
4520 .text_anchor
4521 .to_offset(buffer)
4522 .saturating_sub(old_range.start);
4523 let lookahead = old_range
4524 .end
4525 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4526 let mut common_prefix_len = old_text
4527 .bytes()
4528 .zip(text.bytes())
4529 .take_while(|(a, b)| a == b)
4530 .count();
4531
4532 let snapshot = self.buffer.read(cx).snapshot(cx);
4533 let mut range_to_replace: Option<Range<isize>> = None;
4534 let mut ranges = Vec::new();
4535 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4536 for selection in &selections {
4537 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4538 let start = selection.start.saturating_sub(lookbehind);
4539 let end = selection.end + lookahead;
4540 if selection.id == newest_selection.id {
4541 range_to_replace = Some(
4542 ((start + common_prefix_len) as isize - selection.start as isize)
4543 ..(end as isize - selection.start as isize),
4544 );
4545 }
4546 ranges.push(start + common_prefix_len..end);
4547 } else {
4548 common_prefix_len = 0;
4549 ranges.clear();
4550 ranges.extend(selections.iter().map(|s| {
4551 if s.id == newest_selection.id {
4552 range_to_replace = Some(
4553 old_range.start.to_offset_utf16(&snapshot).0 as isize
4554 - selection.start as isize
4555 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4556 - selection.start as isize,
4557 );
4558 old_range.clone()
4559 } else {
4560 s.start..s.end
4561 }
4562 }));
4563 break;
4564 }
4565 if !self.linked_edit_ranges.is_empty() {
4566 let start_anchor = snapshot.anchor_before(selection.head());
4567 let end_anchor = snapshot.anchor_after(selection.tail());
4568 if let Some(ranges) = self
4569 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4570 {
4571 for (buffer, edits) in ranges {
4572 linked_edits.entry(buffer.clone()).or_default().extend(
4573 edits
4574 .into_iter()
4575 .map(|range| (range, text[common_prefix_len..].to_owned())),
4576 );
4577 }
4578 }
4579 }
4580 }
4581 let text = &text[common_prefix_len..];
4582
4583 cx.emit(EditorEvent::InputHandled {
4584 utf16_range_to_replace: range_to_replace,
4585 text: text.into(),
4586 });
4587
4588 self.transact(cx, |this, cx| {
4589 if let Some(mut snippet) = snippet {
4590 snippet.text = text.to_string();
4591 for tabstop in snippet.tabstops.iter_mut().flatten() {
4592 tabstop.start -= common_prefix_len as isize;
4593 tabstop.end -= common_prefix_len as isize;
4594 }
4595
4596 this.insert_snippet(&ranges, snippet, cx).log_err();
4597 } else {
4598 this.buffer.update(cx, |buffer, cx| {
4599 buffer.edit(
4600 ranges.iter().map(|range| (range.clone(), text)),
4601 this.autoindent_mode.clone(),
4602 cx,
4603 );
4604 });
4605 }
4606 for (buffer, edits) in linked_edits {
4607 buffer.update(cx, |buffer, cx| {
4608 let snapshot = buffer.snapshot();
4609 let edits = edits
4610 .into_iter()
4611 .map(|(range, text)| {
4612 use text::ToPoint as TP;
4613 let end_point = TP::to_point(&range.end, &snapshot);
4614 let start_point = TP::to_point(&range.start, &snapshot);
4615 (start_point..end_point, text)
4616 })
4617 .sorted_by_key(|(range, _)| range.start)
4618 .collect::<Vec<_>>();
4619 buffer.edit(edits, None, cx);
4620 })
4621 }
4622
4623 this.refresh_inline_completion(true, false, cx);
4624 });
4625
4626 let show_new_completions_on_confirm = completion
4627 .confirm
4628 .as_ref()
4629 .map_or(false, |confirm| confirm(intent, cx));
4630 if show_new_completions_on_confirm {
4631 self.show_completions(&ShowCompletions { trigger: None }, cx);
4632 }
4633
4634 let provider = self.completion_provider.as_ref()?;
4635 let apply_edits = provider.apply_additional_edits_for_completion(
4636 buffer_handle,
4637 completion.clone(),
4638 true,
4639 cx,
4640 );
4641
4642 let editor_settings = EditorSettings::get_global(cx);
4643 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4644 // After the code completion is finished, users often want to know what signatures are needed.
4645 // so we should automatically call signature_help
4646 self.show_signature_help(&ShowSignatureHelp, cx);
4647 }
4648
4649 Some(cx.foreground_executor().spawn(async move {
4650 apply_edits.await?;
4651 Ok(())
4652 }))
4653 }
4654
4655 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4656 let mut context_menu = self.context_menu.write();
4657 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4658 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4659 // Toggle if we're selecting the same one
4660 *context_menu = None;
4661 cx.notify();
4662 return;
4663 } else {
4664 // Otherwise, clear it and start a new one
4665 *context_menu = None;
4666 cx.notify();
4667 }
4668 }
4669 drop(context_menu);
4670 let snapshot = self.snapshot(cx);
4671 let deployed_from_indicator = action.deployed_from_indicator;
4672 let mut task = self.code_actions_task.take();
4673 let action = action.clone();
4674 cx.spawn(|editor, mut cx| async move {
4675 while let Some(prev_task) = task {
4676 prev_task.await.log_err();
4677 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4678 }
4679
4680 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4681 if editor.focus_handle.is_focused(cx) {
4682 let multibuffer_point = action
4683 .deployed_from_indicator
4684 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4685 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4686 let (buffer, buffer_row) = snapshot
4687 .buffer_snapshot
4688 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4689 .and_then(|(buffer_snapshot, range)| {
4690 editor
4691 .buffer
4692 .read(cx)
4693 .buffer(buffer_snapshot.remote_id())
4694 .map(|buffer| (buffer, range.start.row))
4695 })?;
4696 let (_, code_actions) = editor
4697 .available_code_actions
4698 .clone()
4699 .and_then(|(location, code_actions)| {
4700 let snapshot = location.buffer.read(cx).snapshot();
4701 let point_range = location.range.to_point(&snapshot);
4702 let point_range = point_range.start.row..=point_range.end.row;
4703 if point_range.contains(&buffer_row) {
4704 Some((location, code_actions))
4705 } else {
4706 None
4707 }
4708 })
4709 .unzip();
4710 let buffer_id = buffer.read(cx).remote_id();
4711 let tasks = editor
4712 .tasks
4713 .get(&(buffer_id, buffer_row))
4714 .map(|t| Arc::new(t.to_owned()));
4715 if tasks.is_none() && code_actions.is_none() {
4716 return None;
4717 }
4718
4719 editor.completion_tasks.clear();
4720 editor.discard_inline_completion(false, cx);
4721 let task_context =
4722 tasks
4723 .as_ref()
4724 .zip(editor.project.clone())
4725 .map(|(tasks, project)| {
4726 let position = Point::new(buffer_row, tasks.column);
4727 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4728 let location = Location {
4729 buffer: buffer.clone(),
4730 range: range_start..range_start,
4731 };
4732 // Fill in the environmental variables from the tree-sitter captures
4733 let mut captured_task_variables = TaskVariables::default();
4734 for (capture_name, value) in tasks.extra_variables.clone() {
4735 captured_task_variables.insert(
4736 task::VariableName::Custom(capture_name.into()),
4737 value.clone(),
4738 );
4739 }
4740 project.update(cx, |project, cx| {
4741 project.task_store().update(cx, |task_store, cx| {
4742 task_store.task_context_for_location(
4743 captured_task_variables,
4744 location,
4745 cx,
4746 )
4747 })
4748 })
4749 });
4750
4751 Some(cx.spawn(|editor, mut cx| async move {
4752 let task_context = match task_context {
4753 Some(task_context) => task_context.await,
4754 None => None,
4755 };
4756 let resolved_tasks =
4757 tasks.zip(task_context).map(|(tasks, task_context)| {
4758 Arc::new(ResolvedTasks {
4759 templates: tasks
4760 .templates
4761 .iter()
4762 .filter_map(|(kind, template)| {
4763 template
4764 .resolve_task(&kind.to_id_base(), &task_context)
4765 .map(|task| (kind.clone(), task))
4766 })
4767 .collect(),
4768 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4769 multibuffer_point.row,
4770 tasks.column,
4771 )),
4772 })
4773 });
4774 let spawn_straight_away = resolved_tasks
4775 .as_ref()
4776 .map_or(false, |tasks| tasks.templates.len() == 1)
4777 && code_actions
4778 .as_ref()
4779 .map_or(true, |actions| actions.is_empty());
4780 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4781 *editor.context_menu.write() =
4782 Some(ContextMenu::CodeActions(CodeActionsMenu {
4783 buffer,
4784 actions: CodeActionContents {
4785 tasks: resolved_tasks,
4786 actions: code_actions,
4787 },
4788 selected_item: Default::default(),
4789 scroll_handle: UniformListScrollHandle::default(),
4790 deployed_from_indicator,
4791 }));
4792 if spawn_straight_away {
4793 if let Some(task) = editor.confirm_code_action(
4794 &ConfirmCodeAction { item_ix: Some(0) },
4795 cx,
4796 ) {
4797 cx.notify();
4798 return task;
4799 }
4800 }
4801 cx.notify();
4802 Task::ready(Ok(()))
4803 }) {
4804 task.await
4805 } else {
4806 Ok(())
4807 }
4808 }))
4809 } else {
4810 Some(Task::ready(Ok(())))
4811 }
4812 })?;
4813 if let Some(task) = spawned_test_task {
4814 task.await?;
4815 }
4816
4817 Ok::<_, anyhow::Error>(())
4818 })
4819 .detach_and_log_err(cx);
4820 }
4821
4822 pub fn confirm_code_action(
4823 &mut self,
4824 action: &ConfirmCodeAction,
4825 cx: &mut ViewContext<Self>,
4826 ) -> Option<Task<Result<()>>> {
4827 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4828 menu
4829 } else {
4830 return None;
4831 };
4832 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4833 let action = actions_menu.actions.get(action_ix)?;
4834 let title = action.label();
4835 let buffer = actions_menu.buffer;
4836 let workspace = self.workspace()?;
4837
4838 match action {
4839 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4840 workspace.update(cx, |workspace, cx| {
4841 workspace::tasks::schedule_resolved_task(
4842 workspace,
4843 task_source_kind,
4844 resolved_task,
4845 false,
4846 cx,
4847 );
4848
4849 Some(Task::ready(Ok(())))
4850 })
4851 }
4852 CodeActionsItem::CodeAction {
4853 excerpt_id,
4854 action,
4855 provider,
4856 } => {
4857 let apply_code_action =
4858 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4859 let workspace = workspace.downgrade();
4860 Some(cx.spawn(|editor, cx| async move {
4861 let project_transaction = apply_code_action.await?;
4862 Self::open_project_transaction(
4863 &editor,
4864 workspace,
4865 project_transaction,
4866 title,
4867 cx,
4868 )
4869 .await
4870 }))
4871 }
4872 }
4873 }
4874
4875 pub async fn open_project_transaction(
4876 this: &WeakView<Editor>,
4877 workspace: WeakView<Workspace>,
4878 transaction: ProjectTransaction,
4879 title: String,
4880 mut cx: AsyncWindowContext,
4881 ) -> Result<()> {
4882 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4883 cx.update(|cx| {
4884 entries.sort_unstable_by_key(|(buffer, _)| {
4885 buffer.read(cx).file().map(|f| f.path().clone())
4886 });
4887 })?;
4888
4889 // If the project transaction's edits are all contained within this editor, then
4890 // avoid opening a new editor to display them.
4891
4892 if let Some((buffer, transaction)) = entries.first() {
4893 if entries.len() == 1 {
4894 let excerpt = this.update(&mut cx, |editor, cx| {
4895 editor
4896 .buffer()
4897 .read(cx)
4898 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4899 })?;
4900 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4901 if excerpted_buffer == *buffer {
4902 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4903 let excerpt_range = excerpt_range.to_offset(buffer);
4904 buffer
4905 .edited_ranges_for_transaction::<usize>(transaction)
4906 .all(|range| {
4907 excerpt_range.start <= range.start
4908 && excerpt_range.end >= range.end
4909 })
4910 })?;
4911
4912 if all_edits_within_excerpt {
4913 return Ok(());
4914 }
4915 }
4916 }
4917 }
4918 } else {
4919 return Ok(());
4920 }
4921
4922 let mut ranges_to_highlight = Vec::new();
4923 let excerpt_buffer = cx.new_model(|cx| {
4924 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4925 for (buffer_handle, transaction) in &entries {
4926 let buffer = buffer_handle.read(cx);
4927 ranges_to_highlight.extend(
4928 multibuffer.push_excerpts_with_context_lines(
4929 buffer_handle.clone(),
4930 buffer
4931 .edited_ranges_for_transaction::<usize>(transaction)
4932 .collect(),
4933 DEFAULT_MULTIBUFFER_CONTEXT,
4934 cx,
4935 ),
4936 );
4937 }
4938 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4939 multibuffer
4940 })?;
4941
4942 workspace.update(&mut cx, |workspace, cx| {
4943 let project = workspace.project().clone();
4944 let editor =
4945 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4946 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4947 editor.update(cx, |editor, cx| {
4948 editor.highlight_background::<Self>(
4949 &ranges_to_highlight,
4950 |theme| theme.editor_highlighted_line_background,
4951 cx,
4952 );
4953 });
4954 })?;
4955
4956 Ok(())
4957 }
4958
4959 pub fn clear_code_action_providers(&mut self) {
4960 self.code_action_providers.clear();
4961 self.available_code_actions.take();
4962 }
4963
4964 pub fn push_code_action_provider(
4965 &mut self,
4966 provider: Arc<dyn CodeActionProvider>,
4967 cx: &mut ViewContext<Self>,
4968 ) {
4969 self.code_action_providers.push(provider);
4970 self.refresh_code_actions(cx);
4971 }
4972
4973 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4974 let buffer = self.buffer.read(cx);
4975 let newest_selection = self.selections.newest_anchor().clone();
4976 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4977 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4978 if start_buffer != end_buffer {
4979 return None;
4980 }
4981
4982 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4983 cx.background_executor()
4984 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4985 .await;
4986
4987 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4988 let providers = this.code_action_providers.clone();
4989 let tasks = this
4990 .code_action_providers
4991 .iter()
4992 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4993 .collect::<Vec<_>>();
4994 (providers, tasks)
4995 })?;
4996
4997 let mut actions = Vec::new();
4998 for (provider, provider_actions) in
4999 providers.into_iter().zip(future::join_all(tasks).await)
5000 {
5001 if let Some(provider_actions) = provider_actions.log_err() {
5002 actions.extend(provider_actions.into_iter().map(|action| {
5003 AvailableCodeAction {
5004 excerpt_id: newest_selection.start.excerpt_id,
5005 action,
5006 provider: provider.clone(),
5007 }
5008 }));
5009 }
5010 }
5011
5012 this.update(&mut cx, |this, cx| {
5013 this.available_code_actions = if actions.is_empty() {
5014 None
5015 } else {
5016 Some((
5017 Location {
5018 buffer: start_buffer,
5019 range: start..end,
5020 },
5021 actions.into(),
5022 ))
5023 };
5024 cx.notify();
5025 })
5026 }));
5027 None
5028 }
5029
5030 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5031 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5032 self.show_git_blame_inline = false;
5033
5034 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5035 cx.background_executor().timer(delay).await;
5036
5037 this.update(&mut cx, |this, cx| {
5038 this.show_git_blame_inline = true;
5039 cx.notify();
5040 })
5041 .log_err();
5042 }));
5043 }
5044 }
5045
5046 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5047 if self.pending_rename.is_some() {
5048 return None;
5049 }
5050
5051 let provider = self.semantics_provider.clone()?;
5052 let buffer = self.buffer.read(cx);
5053 let newest_selection = self.selections.newest_anchor().clone();
5054 let cursor_position = newest_selection.head();
5055 let (cursor_buffer, cursor_buffer_position) =
5056 buffer.text_anchor_for_position(cursor_position, cx)?;
5057 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5058 if cursor_buffer != tail_buffer {
5059 return None;
5060 }
5061
5062 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5063 cx.background_executor()
5064 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5065 .await;
5066
5067 let highlights = if let Some(highlights) = cx
5068 .update(|cx| {
5069 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5070 })
5071 .ok()
5072 .flatten()
5073 {
5074 highlights.await.log_err()
5075 } else {
5076 None
5077 };
5078
5079 if let Some(highlights) = highlights {
5080 this.update(&mut cx, |this, cx| {
5081 if this.pending_rename.is_some() {
5082 return;
5083 }
5084
5085 let buffer_id = cursor_position.buffer_id;
5086 let buffer = this.buffer.read(cx);
5087 if !buffer
5088 .text_anchor_for_position(cursor_position, cx)
5089 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5090 {
5091 return;
5092 }
5093
5094 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5095 let mut write_ranges = Vec::new();
5096 let mut read_ranges = Vec::new();
5097 for highlight in highlights {
5098 for (excerpt_id, excerpt_range) in
5099 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5100 {
5101 let start = highlight
5102 .range
5103 .start
5104 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5105 let end = highlight
5106 .range
5107 .end
5108 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5109 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5110 continue;
5111 }
5112
5113 let range = Anchor {
5114 buffer_id,
5115 excerpt_id,
5116 text_anchor: start,
5117 }..Anchor {
5118 buffer_id,
5119 excerpt_id,
5120 text_anchor: end,
5121 };
5122 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5123 write_ranges.push(range);
5124 } else {
5125 read_ranges.push(range);
5126 }
5127 }
5128 }
5129
5130 this.highlight_background::<DocumentHighlightRead>(
5131 &read_ranges,
5132 |theme| theme.editor_document_highlight_read_background,
5133 cx,
5134 );
5135 this.highlight_background::<DocumentHighlightWrite>(
5136 &write_ranges,
5137 |theme| theme.editor_document_highlight_write_background,
5138 cx,
5139 );
5140 cx.notify();
5141 })
5142 .log_err();
5143 }
5144 }));
5145 None
5146 }
5147
5148 pub fn refresh_inline_completion(
5149 &mut self,
5150 debounce: bool,
5151 user_requested: bool,
5152 cx: &mut ViewContext<Self>,
5153 ) -> Option<()> {
5154 let provider = self.inline_completion_provider()?;
5155 let cursor = self.selections.newest_anchor().head();
5156 let (buffer, cursor_buffer_position) =
5157 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5158
5159 if !user_requested
5160 && (!self.enable_inline_completions
5161 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5162 {
5163 self.discard_inline_completion(false, cx);
5164 return None;
5165 }
5166
5167 self.update_visible_inline_completion(cx);
5168 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5169 Some(())
5170 }
5171
5172 fn cycle_inline_completion(
5173 &mut self,
5174 direction: Direction,
5175 cx: &mut ViewContext<Self>,
5176 ) -> Option<()> {
5177 let provider = self.inline_completion_provider()?;
5178 let cursor = self.selections.newest_anchor().head();
5179 let (buffer, cursor_buffer_position) =
5180 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5181 if !self.enable_inline_completions
5182 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5183 {
5184 return None;
5185 }
5186
5187 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5188 self.update_visible_inline_completion(cx);
5189
5190 Some(())
5191 }
5192
5193 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5194 if !self.has_active_inline_completion(cx) {
5195 self.refresh_inline_completion(false, true, cx);
5196 return;
5197 }
5198
5199 self.update_visible_inline_completion(cx);
5200 }
5201
5202 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5203 self.show_cursor_names(cx);
5204 }
5205
5206 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5207 self.show_cursor_names = true;
5208 cx.notify();
5209 cx.spawn(|this, mut cx| async move {
5210 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5211 this.update(&mut cx, |this, cx| {
5212 this.show_cursor_names = false;
5213 cx.notify()
5214 })
5215 .ok()
5216 })
5217 .detach();
5218 }
5219
5220 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5221 if self.has_active_inline_completion(cx) {
5222 self.cycle_inline_completion(Direction::Next, cx);
5223 } else {
5224 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5225 if is_copilot_disabled {
5226 cx.propagate();
5227 }
5228 }
5229 }
5230
5231 pub fn previous_inline_completion(
5232 &mut self,
5233 _: &PreviousInlineCompletion,
5234 cx: &mut ViewContext<Self>,
5235 ) {
5236 if self.has_active_inline_completion(cx) {
5237 self.cycle_inline_completion(Direction::Prev, cx);
5238 } else {
5239 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5240 if is_copilot_disabled {
5241 cx.propagate();
5242 }
5243 }
5244 }
5245
5246 pub fn accept_inline_completion(
5247 &mut self,
5248 _: &AcceptInlineCompletion,
5249 cx: &mut ViewContext<Self>,
5250 ) {
5251 let Some(completion) = self.take_active_inline_completion(cx) else {
5252 return;
5253 };
5254 if let Some(provider) = self.inline_completion_provider() {
5255 provider.accept(cx);
5256 }
5257
5258 cx.emit(EditorEvent::InputHandled {
5259 utf16_range_to_replace: None,
5260 text: completion.text.to_string().into(),
5261 });
5262
5263 if let Some(range) = completion.delete_range {
5264 self.change_selections(None, cx, |s| s.select_ranges([range]))
5265 }
5266 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5267 self.refresh_inline_completion(true, true, cx);
5268 cx.notify();
5269 }
5270
5271 pub fn accept_partial_inline_completion(
5272 &mut self,
5273 _: &AcceptPartialInlineCompletion,
5274 cx: &mut ViewContext<Self>,
5275 ) {
5276 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5277 if let Some(completion) = self.take_active_inline_completion(cx) {
5278 let mut partial_completion = completion
5279 .text
5280 .chars()
5281 .by_ref()
5282 .take_while(|c| c.is_alphabetic())
5283 .collect::<String>();
5284 if partial_completion.is_empty() {
5285 partial_completion = completion
5286 .text
5287 .chars()
5288 .by_ref()
5289 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5290 .collect::<String>();
5291 }
5292
5293 cx.emit(EditorEvent::InputHandled {
5294 utf16_range_to_replace: None,
5295 text: partial_completion.clone().into(),
5296 });
5297
5298 if let Some(range) = completion.delete_range {
5299 self.change_selections(None, cx, |s| s.select_ranges([range]))
5300 }
5301 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5302
5303 self.refresh_inline_completion(true, true, cx);
5304 cx.notify();
5305 }
5306 }
5307 }
5308
5309 fn discard_inline_completion(
5310 &mut self,
5311 should_report_inline_completion_event: bool,
5312 cx: &mut ViewContext<Self>,
5313 ) -> bool {
5314 if let Some(provider) = self.inline_completion_provider() {
5315 provider.discard(should_report_inline_completion_event, cx);
5316 }
5317
5318 self.take_active_inline_completion(cx).is_some()
5319 }
5320
5321 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5322 if let Some(completion) = self.active_inline_completion.as_ref() {
5323 let buffer = self.buffer.read(cx).read(cx);
5324 completion.position.is_valid(&buffer)
5325 } else {
5326 false
5327 }
5328 }
5329
5330 fn take_active_inline_completion(
5331 &mut self,
5332 cx: &mut ViewContext<Self>,
5333 ) -> Option<CompletionState> {
5334 let completion = self.active_inline_completion.take()?;
5335 let render_inlay_ids = completion.render_inlay_ids.clone();
5336 self.display_map.update(cx, |map, cx| {
5337 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5338 });
5339 let buffer = self.buffer.read(cx).read(cx);
5340
5341 if completion.position.is_valid(&buffer) {
5342 Some(completion)
5343 } else {
5344 None
5345 }
5346 }
5347
5348 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5349 let selection = self.selections.newest_anchor();
5350 let cursor = selection.head();
5351
5352 let excerpt_id = cursor.excerpt_id;
5353
5354 if self.context_menu.read().is_none()
5355 && self.completion_tasks.is_empty()
5356 && selection.start == selection.end
5357 {
5358 if let Some(provider) = self.inline_completion_provider() {
5359 if let Some((buffer, cursor_buffer_position)) =
5360 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5361 {
5362 if let Some(proposal) =
5363 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5364 {
5365 let mut to_remove = Vec::new();
5366 if let Some(completion) = self.active_inline_completion.take() {
5367 to_remove.extend(completion.render_inlay_ids.iter());
5368 }
5369
5370 let to_add = proposal
5371 .inlays
5372 .iter()
5373 .filter_map(|inlay| {
5374 let snapshot = self.buffer.read(cx).snapshot(cx);
5375 let id = post_inc(&mut self.next_inlay_id);
5376 match inlay {
5377 InlayProposal::Hint(position, hint) => {
5378 let position =
5379 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5380 Some(Inlay::hint(id, position, hint))
5381 }
5382 InlayProposal::Suggestion(position, text) => {
5383 let position =
5384 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5385 Some(Inlay::suggestion(id, position, text.clone()))
5386 }
5387 }
5388 })
5389 .collect_vec();
5390
5391 self.active_inline_completion = Some(CompletionState {
5392 position: cursor,
5393 text: proposal.text,
5394 delete_range: proposal.delete_range.and_then(|range| {
5395 let snapshot = self.buffer.read(cx).snapshot(cx);
5396 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5397 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5398 Some(start?..end?)
5399 }),
5400 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5401 });
5402
5403 self.display_map
5404 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5405
5406 cx.notify();
5407 return;
5408 }
5409 }
5410 }
5411 }
5412
5413 self.discard_inline_completion(false, cx);
5414 }
5415
5416 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5417 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5418 }
5419
5420 fn render_code_actions_indicator(
5421 &self,
5422 _style: &EditorStyle,
5423 row: DisplayRow,
5424 is_active: bool,
5425 cx: &mut ViewContext<Self>,
5426 ) -> Option<IconButton> {
5427 if self.available_code_actions.is_some() {
5428 Some(
5429 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5430 .shape(ui::IconButtonShape::Square)
5431 .icon_size(IconSize::XSmall)
5432 .icon_color(Color::Muted)
5433 .selected(is_active)
5434 .tooltip({
5435 let focus_handle = self.focus_handle.clone();
5436 move |cx| {
5437 Tooltip::for_action_in(
5438 "Toggle Code Actions",
5439 &ToggleCodeActions {
5440 deployed_from_indicator: None,
5441 },
5442 &focus_handle,
5443 cx,
5444 )
5445 }
5446 })
5447 .on_click(cx.listener(move |editor, _e, cx| {
5448 editor.focus(cx);
5449 editor.toggle_code_actions(
5450 &ToggleCodeActions {
5451 deployed_from_indicator: Some(row),
5452 },
5453 cx,
5454 );
5455 })),
5456 )
5457 } else {
5458 None
5459 }
5460 }
5461
5462 fn clear_tasks(&mut self) {
5463 self.tasks.clear()
5464 }
5465
5466 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5467 if self.tasks.insert(key, value).is_some() {
5468 // This case should hopefully be rare, but just in case...
5469 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5470 }
5471 }
5472
5473 fn render_run_indicator(
5474 &self,
5475 _style: &EditorStyle,
5476 is_active: bool,
5477 row: DisplayRow,
5478 cx: &mut ViewContext<Self>,
5479 ) -> IconButton {
5480 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5481 .shape(ui::IconButtonShape::Square)
5482 .icon_size(IconSize::XSmall)
5483 .icon_color(Color::Muted)
5484 .selected(is_active)
5485 .on_click(cx.listener(move |editor, _e, cx| {
5486 editor.focus(cx);
5487 editor.toggle_code_actions(
5488 &ToggleCodeActions {
5489 deployed_from_indicator: Some(row),
5490 },
5491 cx,
5492 );
5493 }))
5494 }
5495
5496 pub fn context_menu_visible(&self) -> bool {
5497 self.context_menu
5498 .read()
5499 .as_ref()
5500 .map_or(false, |menu| menu.visible())
5501 }
5502
5503 fn render_context_menu(
5504 &self,
5505 cursor_position: DisplayPoint,
5506 style: &EditorStyle,
5507 max_height: Pixels,
5508 cx: &mut ViewContext<Editor>,
5509 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5510 self.context_menu.read().as_ref().map(|menu| {
5511 menu.render(
5512 cursor_position,
5513 style,
5514 max_height,
5515 self.workspace.as_ref().map(|(w, _)| w.clone()),
5516 cx,
5517 )
5518 })
5519 }
5520
5521 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5522 cx.notify();
5523 self.completion_tasks.clear();
5524 let context_menu = self.context_menu.write().take();
5525 if context_menu.is_some() {
5526 self.update_visible_inline_completion(cx);
5527 }
5528 context_menu
5529 }
5530
5531 pub fn insert_snippet(
5532 &mut self,
5533 insertion_ranges: &[Range<usize>],
5534 snippet: Snippet,
5535 cx: &mut ViewContext<Self>,
5536 ) -> Result<()> {
5537 struct Tabstop<T> {
5538 is_end_tabstop: bool,
5539 ranges: Vec<Range<T>>,
5540 }
5541
5542 let tabstops = self.buffer.update(cx, |buffer, cx| {
5543 let snippet_text: Arc<str> = snippet.text.clone().into();
5544 buffer.edit(
5545 insertion_ranges
5546 .iter()
5547 .cloned()
5548 .map(|range| (range, snippet_text.clone())),
5549 Some(AutoindentMode::EachLine),
5550 cx,
5551 );
5552
5553 let snapshot = &*buffer.read(cx);
5554 let snippet = &snippet;
5555 snippet
5556 .tabstops
5557 .iter()
5558 .map(|tabstop| {
5559 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5560 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5561 });
5562 let mut tabstop_ranges = tabstop
5563 .iter()
5564 .flat_map(|tabstop_range| {
5565 let mut delta = 0_isize;
5566 insertion_ranges.iter().map(move |insertion_range| {
5567 let insertion_start = insertion_range.start as isize + delta;
5568 delta +=
5569 snippet.text.len() as isize - insertion_range.len() as isize;
5570
5571 let start = ((insertion_start + tabstop_range.start) as usize)
5572 .min(snapshot.len());
5573 let end = ((insertion_start + tabstop_range.end) as usize)
5574 .min(snapshot.len());
5575 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5576 })
5577 })
5578 .collect::<Vec<_>>();
5579 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5580
5581 Tabstop {
5582 is_end_tabstop,
5583 ranges: tabstop_ranges,
5584 }
5585 })
5586 .collect::<Vec<_>>()
5587 });
5588 if let Some(tabstop) = tabstops.first() {
5589 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5590 s.select_ranges(tabstop.ranges.iter().cloned());
5591 });
5592
5593 // If we're already at the last tabstop and it's at the end of the snippet,
5594 // we're done, we don't need to keep the state around.
5595 if !tabstop.is_end_tabstop {
5596 let ranges = tabstops
5597 .into_iter()
5598 .map(|tabstop| tabstop.ranges)
5599 .collect::<Vec<_>>();
5600 self.snippet_stack.push(SnippetState {
5601 active_index: 0,
5602 ranges,
5603 });
5604 }
5605
5606 // Check whether the just-entered snippet ends with an auto-closable bracket.
5607 if self.autoclose_regions.is_empty() {
5608 let snapshot = self.buffer.read(cx).snapshot(cx);
5609 for selection in &mut self.selections.all::<Point>(cx) {
5610 let selection_head = selection.head();
5611 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5612 continue;
5613 };
5614
5615 let mut bracket_pair = None;
5616 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5617 let prev_chars = snapshot
5618 .reversed_chars_at(selection_head)
5619 .collect::<String>();
5620 for (pair, enabled) in scope.brackets() {
5621 if enabled
5622 && pair.close
5623 && prev_chars.starts_with(pair.start.as_str())
5624 && next_chars.starts_with(pair.end.as_str())
5625 {
5626 bracket_pair = Some(pair.clone());
5627 break;
5628 }
5629 }
5630 if let Some(pair) = bracket_pair {
5631 let start = snapshot.anchor_after(selection_head);
5632 let end = snapshot.anchor_after(selection_head);
5633 self.autoclose_regions.push(AutocloseRegion {
5634 selection_id: selection.id,
5635 range: start..end,
5636 pair,
5637 });
5638 }
5639 }
5640 }
5641 }
5642 Ok(())
5643 }
5644
5645 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5646 self.move_to_snippet_tabstop(Bias::Right, cx)
5647 }
5648
5649 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5650 self.move_to_snippet_tabstop(Bias::Left, cx)
5651 }
5652
5653 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5654 if let Some(mut snippet) = self.snippet_stack.pop() {
5655 match bias {
5656 Bias::Left => {
5657 if snippet.active_index > 0 {
5658 snippet.active_index -= 1;
5659 } else {
5660 self.snippet_stack.push(snippet);
5661 return false;
5662 }
5663 }
5664 Bias::Right => {
5665 if snippet.active_index + 1 < snippet.ranges.len() {
5666 snippet.active_index += 1;
5667 } else {
5668 self.snippet_stack.push(snippet);
5669 return false;
5670 }
5671 }
5672 }
5673 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5674 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5675 s.select_anchor_ranges(current_ranges.iter().cloned())
5676 });
5677 // If snippet state is not at the last tabstop, push it back on the stack
5678 if snippet.active_index + 1 < snippet.ranges.len() {
5679 self.snippet_stack.push(snippet);
5680 }
5681 return true;
5682 }
5683 }
5684
5685 false
5686 }
5687
5688 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5689 self.transact(cx, |this, cx| {
5690 this.select_all(&SelectAll, cx);
5691 this.insert("", cx);
5692 });
5693 }
5694
5695 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5696 self.transact(cx, |this, cx| {
5697 this.select_autoclose_pair(cx);
5698 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5699 if !this.linked_edit_ranges.is_empty() {
5700 let selections = this.selections.all::<MultiBufferPoint>(cx);
5701 let snapshot = this.buffer.read(cx).snapshot(cx);
5702
5703 for selection in selections.iter() {
5704 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5705 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5706 if selection_start.buffer_id != selection_end.buffer_id {
5707 continue;
5708 }
5709 if let Some(ranges) =
5710 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5711 {
5712 for (buffer, entries) in ranges {
5713 linked_ranges.entry(buffer).or_default().extend(entries);
5714 }
5715 }
5716 }
5717 }
5718
5719 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5720 if !this.selections.line_mode {
5721 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5722 for selection in &mut selections {
5723 if selection.is_empty() {
5724 let old_head = selection.head();
5725 let mut new_head =
5726 movement::left(&display_map, old_head.to_display_point(&display_map))
5727 .to_point(&display_map);
5728 if let Some((buffer, line_buffer_range)) = display_map
5729 .buffer_snapshot
5730 .buffer_line_for_row(MultiBufferRow(old_head.row))
5731 {
5732 let indent_size =
5733 buffer.indent_size_for_line(line_buffer_range.start.row);
5734 let indent_len = match indent_size.kind {
5735 IndentKind::Space => {
5736 buffer.settings_at(line_buffer_range.start, cx).tab_size
5737 }
5738 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5739 };
5740 if old_head.column <= indent_size.len && old_head.column > 0 {
5741 let indent_len = indent_len.get();
5742 new_head = cmp::min(
5743 new_head,
5744 MultiBufferPoint::new(
5745 old_head.row,
5746 ((old_head.column - 1) / indent_len) * indent_len,
5747 ),
5748 );
5749 }
5750 }
5751
5752 selection.set_head(new_head, SelectionGoal::None);
5753 }
5754 }
5755 }
5756
5757 this.signature_help_state.set_backspace_pressed(true);
5758 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5759 this.insert("", cx);
5760 let empty_str: Arc<str> = Arc::from("");
5761 for (buffer, edits) in linked_ranges {
5762 let snapshot = buffer.read(cx).snapshot();
5763 use text::ToPoint as TP;
5764
5765 let edits = edits
5766 .into_iter()
5767 .map(|range| {
5768 let end_point = TP::to_point(&range.end, &snapshot);
5769 let mut start_point = TP::to_point(&range.start, &snapshot);
5770
5771 if end_point == start_point {
5772 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5773 .saturating_sub(1);
5774 start_point = TP::to_point(&offset, &snapshot);
5775 };
5776
5777 (start_point..end_point, empty_str.clone())
5778 })
5779 .sorted_by_key(|(range, _)| range.start)
5780 .collect::<Vec<_>>();
5781 buffer.update(cx, |this, cx| {
5782 this.edit(edits, None, cx);
5783 })
5784 }
5785 this.refresh_inline_completion(true, false, cx);
5786 linked_editing_ranges::refresh_linked_ranges(this, cx);
5787 });
5788 }
5789
5790 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5791 self.transact(cx, |this, cx| {
5792 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5793 let line_mode = s.line_mode;
5794 s.move_with(|map, selection| {
5795 if selection.is_empty() && !line_mode {
5796 let cursor = movement::right(map, selection.head());
5797 selection.end = cursor;
5798 selection.reversed = true;
5799 selection.goal = SelectionGoal::None;
5800 }
5801 })
5802 });
5803 this.insert("", cx);
5804 this.refresh_inline_completion(true, false, cx);
5805 });
5806 }
5807
5808 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5809 if self.move_to_prev_snippet_tabstop(cx) {
5810 return;
5811 }
5812
5813 self.outdent(&Outdent, cx);
5814 }
5815
5816 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5817 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5818 return;
5819 }
5820
5821 let mut selections = self.selections.all_adjusted(cx);
5822 let buffer = self.buffer.read(cx);
5823 let snapshot = buffer.snapshot(cx);
5824 let rows_iter = selections.iter().map(|s| s.head().row);
5825 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5826
5827 let mut edits = Vec::new();
5828 let mut prev_edited_row = 0;
5829 let mut row_delta = 0;
5830 for selection in &mut selections {
5831 if selection.start.row != prev_edited_row {
5832 row_delta = 0;
5833 }
5834 prev_edited_row = selection.end.row;
5835
5836 // If the selection is non-empty, then increase the indentation of the selected lines.
5837 if !selection.is_empty() {
5838 row_delta =
5839 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5840 continue;
5841 }
5842
5843 // If the selection is empty and the cursor is in the leading whitespace before the
5844 // suggested indentation, then auto-indent the line.
5845 let cursor = selection.head();
5846 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5847 if let Some(suggested_indent) =
5848 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5849 {
5850 if cursor.column < suggested_indent.len
5851 && cursor.column <= current_indent.len
5852 && current_indent.len <= suggested_indent.len
5853 {
5854 selection.start = Point::new(cursor.row, suggested_indent.len);
5855 selection.end = selection.start;
5856 if row_delta == 0 {
5857 edits.extend(Buffer::edit_for_indent_size_adjustment(
5858 cursor.row,
5859 current_indent,
5860 suggested_indent,
5861 ));
5862 row_delta = suggested_indent.len - current_indent.len;
5863 }
5864 continue;
5865 }
5866 }
5867
5868 // Otherwise, insert a hard or soft tab.
5869 let settings = buffer.settings_at(cursor, cx);
5870 let tab_size = if settings.hard_tabs {
5871 IndentSize::tab()
5872 } else {
5873 let tab_size = settings.tab_size.get();
5874 let char_column = snapshot
5875 .text_for_range(Point::new(cursor.row, 0)..cursor)
5876 .flat_map(str::chars)
5877 .count()
5878 + row_delta as usize;
5879 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5880 IndentSize::spaces(chars_to_next_tab_stop)
5881 };
5882 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5883 selection.end = selection.start;
5884 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5885 row_delta += tab_size.len;
5886 }
5887
5888 self.transact(cx, |this, cx| {
5889 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5890 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5891 this.refresh_inline_completion(true, false, cx);
5892 });
5893 }
5894
5895 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5896 if self.read_only(cx) {
5897 return;
5898 }
5899 let mut selections = self.selections.all::<Point>(cx);
5900 let mut prev_edited_row = 0;
5901 let mut row_delta = 0;
5902 let mut edits = Vec::new();
5903 let buffer = self.buffer.read(cx);
5904 let snapshot = buffer.snapshot(cx);
5905 for selection in &mut selections {
5906 if selection.start.row != prev_edited_row {
5907 row_delta = 0;
5908 }
5909 prev_edited_row = selection.end.row;
5910
5911 row_delta =
5912 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5913 }
5914
5915 self.transact(cx, |this, cx| {
5916 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5917 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5918 });
5919 }
5920
5921 fn indent_selection(
5922 buffer: &MultiBuffer,
5923 snapshot: &MultiBufferSnapshot,
5924 selection: &mut Selection<Point>,
5925 edits: &mut Vec<(Range<Point>, String)>,
5926 delta_for_start_row: u32,
5927 cx: &AppContext,
5928 ) -> u32 {
5929 let settings = buffer.settings_at(selection.start, cx);
5930 let tab_size = settings.tab_size.get();
5931 let indent_kind = if settings.hard_tabs {
5932 IndentKind::Tab
5933 } else {
5934 IndentKind::Space
5935 };
5936 let mut start_row = selection.start.row;
5937 let mut end_row = selection.end.row + 1;
5938
5939 // If a selection ends at the beginning of a line, don't indent
5940 // that last line.
5941 if selection.end.column == 0 && selection.end.row > selection.start.row {
5942 end_row -= 1;
5943 }
5944
5945 // Avoid re-indenting a row that has already been indented by a
5946 // previous selection, but still update this selection's column
5947 // to reflect that indentation.
5948 if delta_for_start_row > 0 {
5949 start_row += 1;
5950 selection.start.column += delta_for_start_row;
5951 if selection.end.row == selection.start.row {
5952 selection.end.column += delta_for_start_row;
5953 }
5954 }
5955
5956 let mut delta_for_end_row = 0;
5957 let has_multiple_rows = start_row + 1 != end_row;
5958 for row in start_row..end_row {
5959 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5960 let indent_delta = match (current_indent.kind, indent_kind) {
5961 (IndentKind::Space, IndentKind::Space) => {
5962 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5963 IndentSize::spaces(columns_to_next_tab_stop)
5964 }
5965 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5966 (_, IndentKind::Tab) => IndentSize::tab(),
5967 };
5968
5969 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5970 0
5971 } else {
5972 selection.start.column
5973 };
5974 let row_start = Point::new(row, start);
5975 edits.push((
5976 row_start..row_start,
5977 indent_delta.chars().collect::<String>(),
5978 ));
5979
5980 // Update this selection's endpoints to reflect the indentation.
5981 if row == selection.start.row {
5982 selection.start.column += indent_delta.len;
5983 }
5984 if row == selection.end.row {
5985 selection.end.column += indent_delta.len;
5986 delta_for_end_row = indent_delta.len;
5987 }
5988 }
5989
5990 if selection.start.row == selection.end.row {
5991 delta_for_start_row + delta_for_end_row
5992 } else {
5993 delta_for_end_row
5994 }
5995 }
5996
5997 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5998 if self.read_only(cx) {
5999 return;
6000 }
6001 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6002 let selections = self.selections.all::<Point>(cx);
6003 let mut deletion_ranges = Vec::new();
6004 let mut last_outdent = None;
6005 {
6006 let buffer = self.buffer.read(cx);
6007 let snapshot = buffer.snapshot(cx);
6008 for selection in &selections {
6009 let settings = buffer.settings_at(selection.start, cx);
6010 let tab_size = settings.tab_size.get();
6011 let mut rows = selection.spanned_rows(false, &display_map);
6012
6013 // Avoid re-outdenting a row that has already been outdented by a
6014 // previous selection.
6015 if let Some(last_row) = last_outdent {
6016 if last_row == rows.start {
6017 rows.start = rows.start.next_row();
6018 }
6019 }
6020 let has_multiple_rows = rows.len() > 1;
6021 for row in rows.iter_rows() {
6022 let indent_size = snapshot.indent_size_for_line(row);
6023 if indent_size.len > 0 {
6024 let deletion_len = match indent_size.kind {
6025 IndentKind::Space => {
6026 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6027 if columns_to_prev_tab_stop == 0 {
6028 tab_size
6029 } else {
6030 columns_to_prev_tab_stop
6031 }
6032 }
6033 IndentKind::Tab => 1,
6034 };
6035 let start = if has_multiple_rows
6036 || deletion_len > selection.start.column
6037 || indent_size.len < selection.start.column
6038 {
6039 0
6040 } else {
6041 selection.start.column - deletion_len
6042 };
6043 deletion_ranges.push(
6044 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6045 );
6046 last_outdent = Some(row);
6047 }
6048 }
6049 }
6050 }
6051
6052 self.transact(cx, |this, cx| {
6053 this.buffer.update(cx, |buffer, cx| {
6054 let empty_str: Arc<str> = Arc::default();
6055 buffer.edit(
6056 deletion_ranges
6057 .into_iter()
6058 .map(|range| (range, empty_str.clone())),
6059 None,
6060 cx,
6061 );
6062 });
6063 let selections = this.selections.all::<usize>(cx);
6064 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6065 });
6066 }
6067
6068 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6069 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6070 let selections = self.selections.all::<Point>(cx);
6071
6072 let mut new_cursors = Vec::new();
6073 let mut edit_ranges = Vec::new();
6074 let mut selections = selections.iter().peekable();
6075 while let Some(selection) = selections.next() {
6076 let mut rows = selection.spanned_rows(false, &display_map);
6077 let goal_display_column = selection.head().to_display_point(&display_map).column();
6078
6079 // Accumulate contiguous regions of rows that we want to delete.
6080 while let Some(next_selection) = selections.peek() {
6081 let next_rows = next_selection.spanned_rows(false, &display_map);
6082 if next_rows.start <= rows.end {
6083 rows.end = next_rows.end;
6084 selections.next().unwrap();
6085 } else {
6086 break;
6087 }
6088 }
6089
6090 let buffer = &display_map.buffer_snapshot;
6091 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6092 let edit_end;
6093 let cursor_buffer_row;
6094 if buffer.max_point().row >= rows.end.0 {
6095 // If there's a line after the range, delete the \n from the end of the row range
6096 // and position the cursor on the next line.
6097 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6098 cursor_buffer_row = rows.end;
6099 } else {
6100 // If there isn't a line after the range, delete the \n from the line before the
6101 // start of the row range and position the cursor there.
6102 edit_start = edit_start.saturating_sub(1);
6103 edit_end = buffer.len();
6104 cursor_buffer_row = rows.start.previous_row();
6105 }
6106
6107 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6108 *cursor.column_mut() =
6109 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6110
6111 new_cursors.push((
6112 selection.id,
6113 buffer.anchor_after(cursor.to_point(&display_map)),
6114 ));
6115 edit_ranges.push(edit_start..edit_end);
6116 }
6117
6118 self.transact(cx, |this, cx| {
6119 let buffer = this.buffer.update(cx, |buffer, cx| {
6120 let empty_str: Arc<str> = Arc::default();
6121 buffer.edit(
6122 edit_ranges
6123 .into_iter()
6124 .map(|range| (range, empty_str.clone())),
6125 None,
6126 cx,
6127 );
6128 buffer.snapshot(cx)
6129 });
6130 let new_selections = new_cursors
6131 .into_iter()
6132 .map(|(id, cursor)| {
6133 let cursor = cursor.to_point(&buffer);
6134 Selection {
6135 id,
6136 start: cursor,
6137 end: cursor,
6138 reversed: false,
6139 goal: SelectionGoal::None,
6140 }
6141 })
6142 .collect();
6143
6144 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6145 s.select(new_selections);
6146 });
6147 });
6148 }
6149
6150 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6151 if self.read_only(cx) {
6152 return;
6153 }
6154 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6155 for selection in self.selections.all::<Point>(cx) {
6156 let start = MultiBufferRow(selection.start.row);
6157 let end = if selection.start.row == selection.end.row {
6158 MultiBufferRow(selection.start.row + 1)
6159 } else {
6160 MultiBufferRow(selection.end.row)
6161 };
6162
6163 if let Some(last_row_range) = row_ranges.last_mut() {
6164 if start <= last_row_range.end {
6165 last_row_range.end = end;
6166 continue;
6167 }
6168 }
6169 row_ranges.push(start..end);
6170 }
6171
6172 let snapshot = self.buffer.read(cx).snapshot(cx);
6173 let mut cursor_positions = Vec::new();
6174 for row_range in &row_ranges {
6175 let anchor = snapshot.anchor_before(Point::new(
6176 row_range.end.previous_row().0,
6177 snapshot.line_len(row_range.end.previous_row()),
6178 ));
6179 cursor_positions.push(anchor..anchor);
6180 }
6181
6182 self.transact(cx, |this, cx| {
6183 for row_range in row_ranges.into_iter().rev() {
6184 for row in row_range.iter_rows().rev() {
6185 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6186 let next_line_row = row.next_row();
6187 let indent = snapshot.indent_size_for_line(next_line_row);
6188 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6189
6190 let replace = if snapshot.line_len(next_line_row) > indent.len {
6191 " "
6192 } else {
6193 ""
6194 };
6195
6196 this.buffer.update(cx, |buffer, cx| {
6197 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6198 });
6199 }
6200 }
6201
6202 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6203 s.select_anchor_ranges(cursor_positions)
6204 });
6205 });
6206 }
6207
6208 pub fn sort_lines_case_sensitive(
6209 &mut self,
6210 _: &SortLinesCaseSensitive,
6211 cx: &mut ViewContext<Self>,
6212 ) {
6213 self.manipulate_lines(cx, |lines| lines.sort())
6214 }
6215
6216 pub fn sort_lines_case_insensitive(
6217 &mut self,
6218 _: &SortLinesCaseInsensitive,
6219 cx: &mut ViewContext<Self>,
6220 ) {
6221 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6222 }
6223
6224 pub fn unique_lines_case_insensitive(
6225 &mut self,
6226 _: &UniqueLinesCaseInsensitive,
6227 cx: &mut ViewContext<Self>,
6228 ) {
6229 self.manipulate_lines(cx, |lines| {
6230 let mut seen = HashSet::default();
6231 lines.retain(|line| seen.insert(line.to_lowercase()));
6232 })
6233 }
6234
6235 pub fn unique_lines_case_sensitive(
6236 &mut self,
6237 _: &UniqueLinesCaseSensitive,
6238 cx: &mut ViewContext<Self>,
6239 ) {
6240 self.manipulate_lines(cx, |lines| {
6241 let mut seen = HashSet::default();
6242 lines.retain(|line| seen.insert(*line));
6243 })
6244 }
6245
6246 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6247 let mut revert_changes = HashMap::default();
6248 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6249 for hunk in hunks_for_rows(
6250 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6251 &multi_buffer_snapshot,
6252 ) {
6253 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6254 }
6255 if !revert_changes.is_empty() {
6256 self.transact(cx, |editor, cx| {
6257 editor.revert(revert_changes, cx);
6258 });
6259 }
6260 }
6261
6262 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6263 let Some(project) = self.project.clone() else {
6264 return;
6265 };
6266 self.reload(project, cx).detach_and_notify_err(cx);
6267 }
6268
6269 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6270 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6271 if !revert_changes.is_empty() {
6272 self.transact(cx, |editor, cx| {
6273 editor.revert(revert_changes, cx);
6274 });
6275 }
6276 }
6277
6278 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6279 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6280 let project_path = buffer.read(cx).project_path(cx)?;
6281 let project = self.project.as_ref()?.read(cx);
6282 let entry = project.entry_for_path(&project_path, cx)?;
6283 let parent = match &entry.canonical_path {
6284 Some(canonical_path) => canonical_path.to_path_buf(),
6285 None => project.absolute_path(&project_path, cx)?,
6286 }
6287 .parent()?
6288 .to_path_buf();
6289 Some(parent)
6290 }) {
6291 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6292 }
6293 }
6294
6295 fn gather_revert_changes(
6296 &mut self,
6297 selections: &[Selection<Anchor>],
6298 cx: &mut ViewContext<'_, Editor>,
6299 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6300 let mut revert_changes = HashMap::default();
6301 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6302 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6303 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6304 }
6305 revert_changes
6306 }
6307
6308 pub fn prepare_revert_change(
6309 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6310 multi_buffer: &Model<MultiBuffer>,
6311 hunk: &MultiBufferDiffHunk,
6312 cx: &AppContext,
6313 ) -> Option<()> {
6314 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6315 let buffer = buffer.read(cx);
6316 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6317 let buffer_snapshot = buffer.snapshot();
6318 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6319 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6320 probe
6321 .0
6322 .start
6323 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6324 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6325 }) {
6326 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6327 Some(())
6328 } else {
6329 None
6330 }
6331 }
6332
6333 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6334 self.manipulate_lines(cx, |lines| lines.reverse())
6335 }
6336
6337 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6338 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6339 }
6340
6341 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6342 where
6343 Fn: FnMut(&mut Vec<&str>),
6344 {
6345 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6346 let buffer = self.buffer.read(cx).snapshot(cx);
6347
6348 let mut edits = Vec::new();
6349
6350 let selections = self.selections.all::<Point>(cx);
6351 let mut selections = selections.iter().peekable();
6352 let mut contiguous_row_selections = Vec::new();
6353 let mut new_selections = Vec::new();
6354 let mut added_lines = 0;
6355 let mut removed_lines = 0;
6356
6357 while let Some(selection) = selections.next() {
6358 let (start_row, end_row) = consume_contiguous_rows(
6359 &mut contiguous_row_selections,
6360 selection,
6361 &display_map,
6362 &mut selections,
6363 );
6364
6365 let start_point = Point::new(start_row.0, 0);
6366 let end_point = Point::new(
6367 end_row.previous_row().0,
6368 buffer.line_len(end_row.previous_row()),
6369 );
6370 let text = buffer
6371 .text_for_range(start_point..end_point)
6372 .collect::<String>();
6373
6374 let mut lines = text.split('\n').collect_vec();
6375
6376 let lines_before = lines.len();
6377 callback(&mut lines);
6378 let lines_after = lines.len();
6379
6380 edits.push((start_point..end_point, lines.join("\n")));
6381
6382 // Selections must change based on added and removed line count
6383 let start_row =
6384 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6385 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6386 new_selections.push(Selection {
6387 id: selection.id,
6388 start: start_row,
6389 end: end_row,
6390 goal: SelectionGoal::None,
6391 reversed: selection.reversed,
6392 });
6393
6394 if lines_after > lines_before {
6395 added_lines += lines_after - lines_before;
6396 } else if lines_before > lines_after {
6397 removed_lines += lines_before - lines_after;
6398 }
6399 }
6400
6401 self.transact(cx, |this, cx| {
6402 let buffer = this.buffer.update(cx, |buffer, cx| {
6403 buffer.edit(edits, None, cx);
6404 buffer.snapshot(cx)
6405 });
6406
6407 // Recalculate offsets on newly edited buffer
6408 let new_selections = new_selections
6409 .iter()
6410 .map(|s| {
6411 let start_point = Point::new(s.start.0, 0);
6412 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6413 Selection {
6414 id: s.id,
6415 start: buffer.point_to_offset(start_point),
6416 end: buffer.point_to_offset(end_point),
6417 goal: s.goal,
6418 reversed: s.reversed,
6419 }
6420 })
6421 .collect();
6422
6423 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6424 s.select(new_selections);
6425 });
6426
6427 this.request_autoscroll(Autoscroll::fit(), cx);
6428 });
6429 }
6430
6431 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6432 self.manipulate_text(cx, |text| text.to_uppercase())
6433 }
6434
6435 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6436 self.manipulate_text(cx, |text| text.to_lowercase())
6437 }
6438
6439 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6440 self.manipulate_text(cx, |text| {
6441 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6442 // https://github.com/rutrum/convert-case/issues/16
6443 text.split('\n')
6444 .map(|line| line.to_case(Case::Title))
6445 .join("\n")
6446 })
6447 }
6448
6449 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6450 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6451 }
6452
6453 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6454 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6455 }
6456
6457 pub fn convert_to_upper_camel_case(
6458 &mut self,
6459 _: &ConvertToUpperCamelCase,
6460 cx: &mut ViewContext<Self>,
6461 ) {
6462 self.manipulate_text(cx, |text| {
6463 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6464 // https://github.com/rutrum/convert-case/issues/16
6465 text.split('\n')
6466 .map(|line| line.to_case(Case::UpperCamel))
6467 .join("\n")
6468 })
6469 }
6470
6471 pub fn convert_to_lower_camel_case(
6472 &mut self,
6473 _: &ConvertToLowerCamelCase,
6474 cx: &mut ViewContext<Self>,
6475 ) {
6476 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6477 }
6478
6479 pub fn convert_to_opposite_case(
6480 &mut self,
6481 _: &ConvertToOppositeCase,
6482 cx: &mut ViewContext<Self>,
6483 ) {
6484 self.manipulate_text(cx, |text| {
6485 text.chars()
6486 .fold(String::with_capacity(text.len()), |mut t, c| {
6487 if c.is_uppercase() {
6488 t.extend(c.to_lowercase());
6489 } else {
6490 t.extend(c.to_uppercase());
6491 }
6492 t
6493 })
6494 })
6495 }
6496
6497 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6498 where
6499 Fn: FnMut(&str) -> String,
6500 {
6501 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6502 let buffer = self.buffer.read(cx).snapshot(cx);
6503
6504 let mut new_selections = Vec::new();
6505 let mut edits = Vec::new();
6506 let mut selection_adjustment = 0i32;
6507
6508 for selection in self.selections.all::<usize>(cx) {
6509 let selection_is_empty = selection.is_empty();
6510
6511 let (start, end) = if selection_is_empty {
6512 let word_range = movement::surrounding_word(
6513 &display_map,
6514 selection.start.to_display_point(&display_map),
6515 );
6516 let start = word_range.start.to_offset(&display_map, Bias::Left);
6517 let end = word_range.end.to_offset(&display_map, Bias::Left);
6518 (start, end)
6519 } else {
6520 (selection.start, selection.end)
6521 };
6522
6523 let text = buffer.text_for_range(start..end).collect::<String>();
6524 let old_length = text.len() as i32;
6525 let text = callback(&text);
6526
6527 new_selections.push(Selection {
6528 start: (start as i32 - selection_adjustment) as usize,
6529 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6530 goal: SelectionGoal::None,
6531 ..selection
6532 });
6533
6534 selection_adjustment += old_length - text.len() as i32;
6535
6536 edits.push((start..end, text));
6537 }
6538
6539 self.transact(cx, |this, cx| {
6540 this.buffer.update(cx, |buffer, cx| {
6541 buffer.edit(edits, None, cx);
6542 });
6543
6544 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6545 s.select(new_selections);
6546 });
6547
6548 this.request_autoscroll(Autoscroll::fit(), cx);
6549 });
6550 }
6551
6552 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6553 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6554 let buffer = &display_map.buffer_snapshot;
6555 let selections = self.selections.all::<Point>(cx);
6556
6557 let mut edits = Vec::new();
6558 let mut selections_iter = selections.iter().peekable();
6559 while let Some(selection) = selections_iter.next() {
6560 // Avoid duplicating the same lines twice.
6561 let mut rows = selection.spanned_rows(false, &display_map);
6562
6563 while let Some(next_selection) = selections_iter.peek() {
6564 let next_rows = next_selection.spanned_rows(false, &display_map);
6565 if next_rows.start < rows.end {
6566 rows.end = next_rows.end;
6567 selections_iter.next().unwrap();
6568 } else {
6569 break;
6570 }
6571 }
6572
6573 // Copy the text from the selected row region and splice it either at the start
6574 // or end of the region.
6575 let start = Point::new(rows.start.0, 0);
6576 let end = Point::new(
6577 rows.end.previous_row().0,
6578 buffer.line_len(rows.end.previous_row()),
6579 );
6580 let text = buffer
6581 .text_for_range(start..end)
6582 .chain(Some("\n"))
6583 .collect::<String>();
6584 let insert_location = if upwards {
6585 Point::new(rows.end.0, 0)
6586 } else {
6587 start
6588 };
6589 edits.push((insert_location..insert_location, text));
6590 }
6591
6592 self.transact(cx, |this, cx| {
6593 this.buffer.update(cx, |buffer, cx| {
6594 buffer.edit(edits, None, cx);
6595 });
6596
6597 this.request_autoscroll(Autoscroll::fit(), cx);
6598 });
6599 }
6600
6601 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6602 self.duplicate_line(true, cx);
6603 }
6604
6605 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6606 self.duplicate_line(false, cx);
6607 }
6608
6609 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6610 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6611 let buffer = self.buffer.read(cx).snapshot(cx);
6612
6613 let mut edits = Vec::new();
6614 let mut unfold_ranges = Vec::new();
6615 let mut refold_ranges = Vec::new();
6616
6617 let selections = self.selections.all::<Point>(cx);
6618 let mut selections = selections.iter().peekable();
6619 let mut contiguous_row_selections = Vec::new();
6620 let mut new_selections = Vec::new();
6621
6622 while let Some(selection) = selections.next() {
6623 // Find all the selections that span a contiguous row range
6624 let (start_row, end_row) = consume_contiguous_rows(
6625 &mut contiguous_row_selections,
6626 selection,
6627 &display_map,
6628 &mut selections,
6629 );
6630
6631 // Move the text spanned by the row range to be before the line preceding the row range
6632 if start_row.0 > 0 {
6633 let range_to_move = Point::new(
6634 start_row.previous_row().0,
6635 buffer.line_len(start_row.previous_row()),
6636 )
6637 ..Point::new(
6638 end_row.previous_row().0,
6639 buffer.line_len(end_row.previous_row()),
6640 );
6641 let insertion_point = display_map
6642 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6643 .0;
6644
6645 // Don't move lines across excerpts
6646 if buffer
6647 .excerpt_boundaries_in_range((
6648 Bound::Excluded(insertion_point),
6649 Bound::Included(range_to_move.end),
6650 ))
6651 .next()
6652 .is_none()
6653 {
6654 let text = buffer
6655 .text_for_range(range_to_move.clone())
6656 .flat_map(|s| s.chars())
6657 .skip(1)
6658 .chain(['\n'])
6659 .collect::<String>();
6660
6661 edits.push((
6662 buffer.anchor_after(range_to_move.start)
6663 ..buffer.anchor_before(range_to_move.end),
6664 String::new(),
6665 ));
6666 let insertion_anchor = buffer.anchor_after(insertion_point);
6667 edits.push((insertion_anchor..insertion_anchor, text));
6668
6669 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6670
6671 // Move selections up
6672 new_selections.extend(contiguous_row_selections.drain(..).map(
6673 |mut selection| {
6674 selection.start.row -= row_delta;
6675 selection.end.row -= row_delta;
6676 selection
6677 },
6678 ));
6679
6680 // Move folds up
6681 unfold_ranges.push(range_to_move.clone());
6682 for fold in display_map.folds_in_range(
6683 buffer.anchor_before(range_to_move.start)
6684 ..buffer.anchor_after(range_to_move.end),
6685 ) {
6686 let mut start = fold.range.start.to_point(&buffer);
6687 let mut end = fold.range.end.to_point(&buffer);
6688 start.row -= row_delta;
6689 end.row -= row_delta;
6690 refold_ranges.push((start..end, fold.placeholder.clone()));
6691 }
6692 }
6693 }
6694
6695 // If we didn't move line(s), preserve the existing selections
6696 new_selections.append(&mut contiguous_row_selections);
6697 }
6698
6699 self.transact(cx, |this, cx| {
6700 this.unfold_ranges(unfold_ranges, true, true, cx);
6701 this.buffer.update(cx, |buffer, cx| {
6702 for (range, text) in edits {
6703 buffer.edit([(range, text)], None, cx);
6704 }
6705 });
6706 this.fold_ranges(refold_ranges, true, cx);
6707 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6708 s.select(new_selections);
6709 })
6710 });
6711 }
6712
6713 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6714 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6715 let buffer = self.buffer.read(cx).snapshot(cx);
6716
6717 let mut edits = Vec::new();
6718 let mut unfold_ranges = Vec::new();
6719 let mut refold_ranges = Vec::new();
6720
6721 let selections = self.selections.all::<Point>(cx);
6722 let mut selections = selections.iter().peekable();
6723 let mut contiguous_row_selections = Vec::new();
6724 let mut new_selections = Vec::new();
6725
6726 while let Some(selection) = selections.next() {
6727 // Find all the selections that span a contiguous row range
6728 let (start_row, end_row) = consume_contiguous_rows(
6729 &mut contiguous_row_selections,
6730 selection,
6731 &display_map,
6732 &mut selections,
6733 );
6734
6735 // Move the text spanned by the row range to be after the last line of the row range
6736 if end_row.0 <= buffer.max_point().row {
6737 let range_to_move =
6738 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6739 let insertion_point = display_map
6740 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6741 .0;
6742
6743 // Don't move lines across excerpt boundaries
6744 if buffer
6745 .excerpt_boundaries_in_range((
6746 Bound::Excluded(range_to_move.start),
6747 Bound::Included(insertion_point),
6748 ))
6749 .next()
6750 .is_none()
6751 {
6752 let mut text = String::from("\n");
6753 text.extend(buffer.text_for_range(range_to_move.clone()));
6754 text.pop(); // Drop trailing newline
6755 edits.push((
6756 buffer.anchor_after(range_to_move.start)
6757 ..buffer.anchor_before(range_to_move.end),
6758 String::new(),
6759 ));
6760 let insertion_anchor = buffer.anchor_after(insertion_point);
6761 edits.push((insertion_anchor..insertion_anchor, text));
6762
6763 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6764
6765 // Move selections down
6766 new_selections.extend(contiguous_row_selections.drain(..).map(
6767 |mut selection| {
6768 selection.start.row += row_delta;
6769 selection.end.row += row_delta;
6770 selection
6771 },
6772 ));
6773
6774 // Move folds down
6775 unfold_ranges.push(range_to_move.clone());
6776 for fold in display_map.folds_in_range(
6777 buffer.anchor_before(range_to_move.start)
6778 ..buffer.anchor_after(range_to_move.end),
6779 ) {
6780 let mut start = fold.range.start.to_point(&buffer);
6781 let mut end = fold.range.end.to_point(&buffer);
6782 start.row += row_delta;
6783 end.row += row_delta;
6784 refold_ranges.push((start..end, fold.placeholder.clone()));
6785 }
6786 }
6787 }
6788
6789 // If we didn't move line(s), preserve the existing selections
6790 new_selections.append(&mut contiguous_row_selections);
6791 }
6792
6793 self.transact(cx, |this, cx| {
6794 this.unfold_ranges(unfold_ranges, true, true, cx);
6795 this.buffer.update(cx, |buffer, cx| {
6796 for (range, text) in edits {
6797 buffer.edit([(range, text)], None, cx);
6798 }
6799 });
6800 this.fold_ranges(refold_ranges, true, cx);
6801 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6802 });
6803 }
6804
6805 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6806 let text_layout_details = &self.text_layout_details(cx);
6807 self.transact(cx, |this, cx| {
6808 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6809 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6810 let line_mode = s.line_mode;
6811 s.move_with(|display_map, selection| {
6812 if !selection.is_empty() || line_mode {
6813 return;
6814 }
6815
6816 let mut head = selection.head();
6817 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6818 if head.column() == display_map.line_len(head.row()) {
6819 transpose_offset = display_map
6820 .buffer_snapshot
6821 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6822 }
6823
6824 if transpose_offset == 0 {
6825 return;
6826 }
6827
6828 *head.column_mut() += 1;
6829 head = display_map.clip_point(head, Bias::Right);
6830 let goal = SelectionGoal::HorizontalPosition(
6831 display_map
6832 .x_for_display_point(head, text_layout_details)
6833 .into(),
6834 );
6835 selection.collapse_to(head, goal);
6836
6837 let transpose_start = display_map
6838 .buffer_snapshot
6839 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6840 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6841 let transpose_end = display_map
6842 .buffer_snapshot
6843 .clip_offset(transpose_offset + 1, Bias::Right);
6844 if let Some(ch) =
6845 display_map.buffer_snapshot.chars_at(transpose_start).next()
6846 {
6847 edits.push((transpose_start..transpose_offset, String::new()));
6848 edits.push((transpose_end..transpose_end, ch.to_string()));
6849 }
6850 }
6851 });
6852 edits
6853 });
6854 this.buffer
6855 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6856 let selections = this.selections.all::<usize>(cx);
6857 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6858 s.select(selections);
6859 });
6860 });
6861 }
6862
6863 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6864 self.rewrap_impl(true, cx)
6865 }
6866
6867 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6868 let buffer = self.buffer.read(cx).snapshot(cx);
6869 let selections = self.selections.all::<Point>(cx);
6870 let mut selections = selections.iter().peekable();
6871
6872 let mut edits = Vec::new();
6873 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6874
6875 while let Some(selection) = selections.next() {
6876 let mut start_row = selection.start.row;
6877 let mut end_row = selection.end.row;
6878
6879 // Skip selections that overlap with a range that has already been rewrapped.
6880 let selection_range = start_row..end_row;
6881 if rewrapped_row_ranges
6882 .iter()
6883 .any(|range| range.overlaps(&selection_range))
6884 {
6885 continue;
6886 }
6887
6888 let mut should_rewrap = !only_text;
6889
6890 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6891 match language_scope.language_name().0.as_ref() {
6892 "Markdown" | "Plain Text" => {
6893 should_rewrap = true;
6894 }
6895 _ => {}
6896 }
6897 }
6898
6899 // Since not all lines in the selection may be at the same indent
6900 // level, choose the indent size that is the most common between all
6901 // of the lines.
6902 //
6903 // If there is a tie, we use the deepest indent.
6904 let (indent_size, indent_end) = {
6905 let mut indent_size_occurrences = HashMap::default();
6906 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6907
6908 for row in start_row..=end_row {
6909 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6910 rows_by_indent_size.entry(indent).or_default().push(row);
6911 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6912 }
6913
6914 let indent_size = indent_size_occurrences
6915 .into_iter()
6916 .max_by_key(|(indent, count)| (*count, indent.len))
6917 .map(|(indent, _)| indent)
6918 .unwrap_or_default();
6919 let row = rows_by_indent_size[&indent_size][0];
6920 let indent_end = Point::new(row, indent_size.len);
6921
6922 (indent_size, indent_end)
6923 };
6924
6925 let mut line_prefix = indent_size.chars().collect::<String>();
6926
6927 if let Some(comment_prefix) =
6928 buffer
6929 .language_scope_at(selection.head())
6930 .and_then(|language| {
6931 language
6932 .line_comment_prefixes()
6933 .iter()
6934 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6935 .cloned()
6936 })
6937 {
6938 line_prefix.push_str(&comment_prefix);
6939 should_rewrap = true;
6940 }
6941
6942 if selection.is_empty() {
6943 'expand_upwards: while start_row > 0 {
6944 let prev_row = start_row - 1;
6945 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6946 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6947 {
6948 start_row = prev_row;
6949 } else {
6950 break 'expand_upwards;
6951 }
6952 }
6953
6954 'expand_downwards: while end_row < buffer.max_point().row {
6955 let next_row = end_row + 1;
6956 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6957 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6958 {
6959 end_row = next_row;
6960 } else {
6961 break 'expand_downwards;
6962 }
6963 }
6964 }
6965
6966 if !should_rewrap {
6967 continue;
6968 }
6969
6970 let start = Point::new(start_row, 0);
6971 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6972 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6973 let Some(lines_without_prefixes) = selection_text
6974 .lines()
6975 .map(|line| {
6976 line.strip_prefix(&line_prefix)
6977 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6978 .ok_or_else(|| {
6979 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6980 })
6981 })
6982 .collect::<Result<Vec<_>, _>>()
6983 .log_err()
6984 else {
6985 continue;
6986 };
6987
6988 let unwrapped_text = lines_without_prefixes.join(" ");
6989 let wrap_column = buffer
6990 .settings_at(Point::new(start_row, 0), cx)
6991 .preferred_line_length as usize;
6992 let mut wrapped_text = String::new();
6993 let mut current_line = line_prefix.clone();
6994 for word in unwrapped_text.split_whitespace() {
6995 if current_line.len() + word.len() >= wrap_column {
6996 wrapped_text.push_str(¤t_line);
6997 wrapped_text.push('\n');
6998 current_line.truncate(line_prefix.len());
6999 }
7000
7001 if current_line.len() > line_prefix.len() {
7002 current_line.push(' ');
7003 }
7004
7005 current_line.push_str(word);
7006 }
7007
7008 if !current_line.is_empty() {
7009 wrapped_text.push_str(¤t_line);
7010 }
7011
7012 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7013 let mut offset = start.to_offset(&buffer);
7014 let mut moved_since_edit = true;
7015
7016 for change in diff.iter_all_changes() {
7017 let value = change.value();
7018 match change.tag() {
7019 ChangeTag::Equal => {
7020 offset += value.len();
7021 moved_since_edit = true;
7022 }
7023 ChangeTag::Delete => {
7024 let start = buffer.anchor_after(offset);
7025 let end = buffer.anchor_before(offset + value.len());
7026
7027 if moved_since_edit {
7028 edits.push((start..end, String::new()));
7029 } else {
7030 edits.last_mut().unwrap().0.end = end;
7031 }
7032
7033 offset += value.len();
7034 moved_since_edit = false;
7035 }
7036 ChangeTag::Insert => {
7037 if moved_since_edit {
7038 let anchor = buffer.anchor_after(offset);
7039 edits.push((anchor..anchor, value.to_string()));
7040 } else {
7041 edits.last_mut().unwrap().1.push_str(value);
7042 }
7043
7044 moved_since_edit = false;
7045 }
7046 }
7047 }
7048
7049 rewrapped_row_ranges.push(start_row..=end_row);
7050 }
7051
7052 self.buffer
7053 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7054 }
7055
7056 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7057 let mut text = String::new();
7058 let buffer = self.buffer.read(cx).snapshot(cx);
7059 let mut selections = self.selections.all::<Point>(cx);
7060 let mut clipboard_selections = Vec::with_capacity(selections.len());
7061 {
7062 let max_point = buffer.max_point();
7063 let mut is_first = true;
7064 for selection in &mut selections {
7065 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7066 if is_entire_line {
7067 selection.start = Point::new(selection.start.row, 0);
7068 if !selection.is_empty() && selection.end.column == 0 {
7069 selection.end = cmp::min(max_point, selection.end);
7070 } else {
7071 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7072 }
7073 selection.goal = SelectionGoal::None;
7074 }
7075 if is_first {
7076 is_first = false;
7077 } else {
7078 text += "\n";
7079 }
7080 let mut len = 0;
7081 for chunk in buffer.text_for_range(selection.start..selection.end) {
7082 text.push_str(chunk);
7083 len += chunk.len();
7084 }
7085 clipboard_selections.push(ClipboardSelection {
7086 len,
7087 is_entire_line,
7088 first_line_indent: buffer
7089 .indent_size_for_line(MultiBufferRow(selection.start.row))
7090 .len,
7091 });
7092 }
7093 }
7094
7095 self.transact(cx, |this, cx| {
7096 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7097 s.select(selections);
7098 });
7099 this.insert("", cx);
7100 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7101 text,
7102 clipboard_selections,
7103 ));
7104 });
7105 }
7106
7107 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7108 let selections = self.selections.all::<Point>(cx);
7109 let buffer = self.buffer.read(cx).read(cx);
7110 let mut text = String::new();
7111
7112 let mut clipboard_selections = Vec::with_capacity(selections.len());
7113 {
7114 let max_point = buffer.max_point();
7115 let mut is_first = true;
7116 for selection in selections.iter() {
7117 let mut start = selection.start;
7118 let mut end = selection.end;
7119 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7120 if is_entire_line {
7121 start = Point::new(start.row, 0);
7122 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7123 }
7124 if is_first {
7125 is_first = false;
7126 } else {
7127 text += "\n";
7128 }
7129 let mut len = 0;
7130 for chunk in buffer.text_for_range(start..end) {
7131 text.push_str(chunk);
7132 len += chunk.len();
7133 }
7134 clipboard_selections.push(ClipboardSelection {
7135 len,
7136 is_entire_line,
7137 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7138 });
7139 }
7140 }
7141
7142 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7143 text,
7144 clipboard_selections,
7145 ));
7146 }
7147
7148 pub fn do_paste(
7149 &mut self,
7150 text: &String,
7151 clipboard_selections: Option<Vec<ClipboardSelection>>,
7152 handle_entire_lines: bool,
7153 cx: &mut ViewContext<Self>,
7154 ) {
7155 if self.read_only(cx) {
7156 return;
7157 }
7158
7159 let clipboard_text = Cow::Borrowed(text);
7160
7161 self.transact(cx, |this, cx| {
7162 if let Some(mut clipboard_selections) = clipboard_selections {
7163 let old_selections = this.selections.all::<usize>(cx);
7164 let all_selections_were_entire_line =
7165 clipboard_selections.iter().all(|s| s.is_entire_line);
7166 let first_selection_indent_column =
7167 clipboard_selections.first().map(|s| s.first_line_indent);
7168 if clipboard_selections.len() != old_selections.len() {
7169 clipboard_selections.drain(..);
7170 }
7171
7172 this.buffer.update(cx, |buffer, cx| {
7173 let snapshot = buffer.read(cx);
7174 let mut start_offset = 0;
7175 let mut edits = Vec::new();
7176 let mut original_indent_columns = Vec::new();
7177 for (ix, selection) in old_selections.iter().enumerate() {
7178 let to_insert;
7179 let entire_line;
7180 let original_indent_column;
7181 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7182 let end_offset = start_offset + clipboard_selection.len;
7183 to_insert = &clipboard_text[start_offset..end_offset];
7184 entire_line = clipboard_selection.is_entire_line;
7185 start_offset = end_offset + 1;
7186 original_indent_column = Some(clipboard_selection.first_line_indent);
7187 } else {
7188 to_insert = clipboard_text.as_str();
7189 entire_line = all_selections_were_entire_line;
7190 original_indent_column = first_selection_indent_column
7191 }
7192
7193 // If the corresponding selection was empty when this slice of the
7194 // clipboard text was written, then the entire line containing the
7195 // selection was copied. If this selection is also currently empty,
7196 // then paste the line before the current line of the buffer.
7197 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7198 let column = selection.start.to_point(&snapshot).column as usize;
7199 let line_start = selection.start - column;
7200 line_start..line_start
7201 } else {
7202 selection.range()
7203 };
7204
7205 edits.push((range, to_insert));
7206 original_indent_columns.extend(original_indent_column);
7207 }
7208 drop(snapshot);
7209
7210 buffer.edit(
7211 edits,
7212 Some(AutoindentMode::Block {
7213 original_indent_columns,
7214 }),
7215 cx,
7216 );
7217 });
7218
7219 let selections = this.selections.all::<usize>(cx);
7220 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7221 } else {
7222 this.insert(&clipboard_text, cx);
7223 }
7224 });
7225 }
7226
7227 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7228 if let Some(item) = cx.read_from_clipboard() {
7229 let entries = item.entries();
7230
7231 match entries.first() {
7232 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7233 // of all the pasted entries.
7234 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7235 .do_paste(
7236 clipboard_string.text(),
7237 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7238 true,
7239 cx,
7240 ),
7241 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7242 }
7243 }
7244 }
7245
7246 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7247 if self.read_only(cx) {
7248 return;
7249 }
7250
7251 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7252 if let Some((selections, _)) =
7253 self.selection_history.transaction(transaction_id).cloned()
7254 {
7255 self.change_selections(None, cx, |s| {
7256 s.select_anchors(selections.to_vec());
7257 });
7258 }
7259 self.request_autoscroll(Autoscroll::fit(), cx);
7260 self.unmark_text(cx);
7261 self.refresh_inline_completion(true, false, cx);
7262 cx.emit(EditorEvent::Edited { transaction_id });
7263 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7264 }
7265 }
7266
7267 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7268 if self.read_only(cx) {
7269 return;
7270 }
7271
7272 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7273 if let Some((_, Some(selections))) =
7274 self.selection_history.transaction(transaction_id).cloned()
7275 {
7276 self.change_selections(None, cx, |s| {
7277 s.select_anchors(selections.to_vec());
7278 });
7279 }
7280 self.request_autoscroll(Autoscroll::fit(), cx);
7281 self.unmark_text(cx);
7282 self.refresh_inline_completion(true, false, cx);
7283 cx.emit(EditorEvent::Edited { transaction_id });
7284 }
7285 }
7286
7287 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7288 self.buffer
7289 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7290 }
7291
7292 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7293 self.buffer
7294 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7295 }
7296
7297 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7298 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7299 let line_mode = s.line_mode;
7300 s.move_with(|map, selection| {
7301 let cursor = if selection.is_empty() && !line_mode {
7302 movement::left(map, selection.start)
7303 } else {
7304 selection.start
7305 };
7306 selection.collapse_to(cursor, SelectionGoal::None);
7307 });
7308 })
7309 }
7310
7311 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7312 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7313 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7314 })
7315 }
7316
7317 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7318 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7319 let line_mode = s.line_mode;
7320 s.move_with(|map, selection| {
7321 let cursor = if selection.is_empty() && !line_mode {
7322 movement::right(map, selection.end)
7323 } else {
7324 selection.end
7325 };
7326 selection.collapse_to(cursor, SelectionGoal::None)
7327 });
7328 })
7329 }
7330
7331 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7332 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7333 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7334 })
7335 }
7336
7337 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7338 if self.take_rename(true, cx).is_some() {
7339 return;
7340 }
7341
7342 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7343 cx.propagate();
7344 return;
7345 }
7346
7347 let text_layout_details = &self.text_layout_details(cx);
7348 let selection_count = self.selections.count();
7349 let first_selection = self.selections.first_anchor();
7350
7351 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7352 let line_mode = s.line_mode;
7353 s.move_with(|map, selection| {
7354 if !selection.is_empty() && !line_mode {
7355 selection.goal = SelectionGoal::None;
7356 }
7357 let (cursor, goal) = movement::up(
7358 map,
7359 selection.start,
7360 selection.goal,
7361 false,
7362 text_layout_details,
7363 );
7364 selection.collapse_to(cursor, goal);
7365 });
7366 });
7367
7368 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7369 {
7370 cx.propagate();
7371 }
7372 }
7373
7374 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7375 if self.take_rename(true, cx).is_some() {
7376 return;
7377 }
7378
7379 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7380 cx.propagate();
7381 return;
7382 }
7383
7384 let text_layout_details = &self.text_layout_details(cx);
7385
7386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7387 let line_mode = s.line_mode;
7388 s.move_with(|map, selection| {
7389 if !selection.is_empty() && !line_mode {
7390 selection.goal = SelectionGoal::None;
7391 }
7392 let (cursor, goal) = movement::up_by_rows(
7393 map,
7394 selection.start,
7395 action.lines,
7396 selection.goal,
7397 false,
7398 text_layout_details,
7399 );
7400 selection.collapse_to(cursor, goal);
7401 });
7402 })
7403 }
7404
7405 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7406 if self.take_rename(true, cx).is_some() {
7407 return;
7408 }
7409
7410 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7411 cx.propagate();
7412 return;
7413 }
7414
7415 let text_layout_details = &self.text_layout_details(cx);
7416
7417 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7418 let line_mode = s.line_mode;
7419 s.move_with(|map, selection| {
7420 if !selection.is_empty() && !line_mode {
7421 selection.goal = SelectionGoal::None;
7422 }
7423 let (cursor, goal) = movement::down_by_rows(
7424 map,
7425 selection.start,
7426 action.lines,
7427 selection.goal,
7428 false,
7429 text_layout_details,
7430 );
7431 selection.collapse_to(cursor, goal);
7432 });
7433 })
7434 }
7435
7436 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7437 let text_layout_details = &self.text_layout_details(cx);
7438 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7439 s.move_heads_with(|map, head, goal| {
7440 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7441 })
7442 })
7443 }
7444
7445 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7446 let text_layout_details = &self.text_layout_details(cx);
7447 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7448 s.move_heads_with(|map, head, goal| {
7449 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7450 })
7451 })
7452 }
7453
7454 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7455 let Some(row_count) = self.visible_row_count() else {
7456 return;
7457 };
7458
7459 let text_layout_details = &self.text_layout_details(cx);
7460
7461 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7462 s.move_heads_with(|map, head, goal| {
7463 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7464 })
7465 })
7466 }
7467
7468 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7469 if self.take_rename(true, cx).is_some() {
7470 return;
7471 }
7472
7473 if self
7474 .context_menu
7475 .write()
7476 .as_mut()
7477 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7478 .unwrap_or(false)
7479 {
7480 return;
7481 }
7482
7483 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7484 cx.propagate();
7485 return;
7486 }
7487
7488 let Some(row_count) = self.visible_row_count() else {
7489 return;
7490 };
7491
7492 let autoscroll = if action.center_cursor {
7493 Autoscroll::center()
7494 } else {
7495 Autoscroll::fit()
7496 };
7497
7498 let text_layout_details = &self.text_layout_details(cx);
7499
7500 self.change_selections(Some(autoscroll), cx, |s| {
7501 let line_mode = s.line_mode;
7502 s.move_with(|map, selection| {
7503 if !selection.is_empty() && !line_mode {
7504 selection.goal = SelectionGoal::None;
7505 }
7506 let (cursor, goal) = movement::up_by_rows(
7507 map,
7508 selection.end,
7509 row_count,
7510 selection.goal,
7511 false,
7512 text_layout_details,
7513 );
7514 selection.collapse_to(cursor, goal);
7515 });
7516 });
7517 }
7518
7519 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7520 let text_layout_details = &self.text_layout_details(cx);
7521 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7522 s.move_heads_with(|map, head, goal| {
7523 movement::up(map, head, goal, false, text_layout_details)
7524 })
7525 })
7526 }
7527
7528 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7529 self.take_rename(true, cx);
7530
7531 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7532 cx.propagate();
7533 return;
7534 }
7535
7536 let text_layout_details = &self.text_layout_details(cx);
7537 let selection_count = self.selections.count();
7538 let first_selection = self.selections.first_anchor();
7539
7540 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7541 let line_mode = s.line_mode;
7542 s.move_with(|map, selection| {
7543 if !selection.is_empty() && !line_mode {
7544 selection.goal = SelectionGoal::None;
7545 }
7546 let (cursor, goal) = movement::down(
7547 map,
7548 selection.end,
7549 selection.goal,
7550 false,
7551 text_layout_details,
7552 );
7553 selection.collapse_to(cursor, goal);
7554 });
7555 });
7556
7557 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7558 {
7559 cx.propagate();
7560 }
7561 }
7562
7563 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7564 let Some(row_count) = self.visible_row_count() else {
7565 return;
7566 };
7567
7568 let text_layout_details = &self.text_layout_details(cx);
7569
7570 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7571 s.move_heads_with(|map, head, goal| {
7572 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7573 })
7574 })
7575 }
7576
7577 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7578 if self.take_rename(true, cx).is_some() {
7579 return;
7580 }
7581
7582 if self
7583 .context_menu
7584 .write()
7585 .as_mut()
7586 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7587 .unwrap_or(false)
7588 {
7589 return;
7590 }
7591
7592 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7593 cx.propagate();
7594 return;
7595 }
7596
7597 let Some(row_count) = self.visible_row_count() else {
7598 return;
7599 };
7600
7601 let autoscroll = if action.center_cursor {
7602 Autoscroll::center()
7603 } else {
7604 Autoscroll::fit()
7605 };
7606
7607 let text_layout_details = &self.text_layout_details(cx);
7608 self.change_selections(Some(autoscroll), cx, |s| {
7609 let line_mode = s.line_mode;
7610 s.move_with(|map, selection| {
7611 if !selection.is_empty() && !line_mode {
7612 selection.goal = SelectionGoal::None;
7613 }
7614 let (cursor, goal) = movement::down_by_rows(
7615 map,
7616 selection.end,
7617 row_count,
7618 selection.goal,
7619 false,
7620 text_layout_details,
7621 );
7622 selection.collapse_to(cursor, goal);
7623 });
7624 });
7625 }
7626
7627 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7628 let text_layout_details = &self.text_layout_details(cx);
7629 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7630 s.move_heads_with(|map, head, goal| {
7631 movement::down(map, head, goal, false, text_layout_details)
7632 })
7633 });
7634 }
7635
7636 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7637 if let Some(context_menu) = self.context_menu.write().as_mut() {
7638 context_menu.select_first(self.completion_provider.as_deref(), cx);
7639 }
7640 }
7641
7642 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7643 if let Some(context_menu) = self.context_menu.write().as_mut() {
7644 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7645 }
7646 }
7647
7648 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7649 if let Some(context_menu) = self.context_menu.write().as_mut() {
7650 context_menu.select_next(self.completion_provider.as_deref(), cx);
7651 }
7652 }
7653
7654 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7655 if let Some(context_menu) = self.context_menu.write().as_mut() {
7656 context_menu.select_last(self.completion_provider.as_deref(), cx);
7657 }
7658 }
7659
7660 pub fn move_to_previous_word_start(
7661 &mut self,
7662 _: &MoveToPreviousWordStart,
7663 cx: &mut ViewContext<Self>,
7664 ) {
7665 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7666 s.move_cursors_with(|map, head, _| {
7667 (
7668 movement::previous_word_start(map, head),
7669 SelectionGoal::None,
7670 )
7671 });
7672 })
7673 }
7674
7675 pub fn move_to_previous_subword_start(
7676 &mut self,
7677 _: &MoveToPreviousSubwordStart,
7678 cx: &mut ViewContext<Self>,
7679 ) {
7680 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7681 s.move_cursors_with(|map, head, _| {
7682 (
7683 movement::previous_subword_start(map, head),
7684 SelectionGoal::None,
7685 )
7686 });
7687 })
7688 }
7689
7690 pub fn select_to_previous_word_start(
7691 &mut self,
7692 _: &SelectToPreviousWordStart,
7693 cx: &mut ViewContext<Self>,
7694 ) {
7695 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7696 s.move_heads_with(|map, head, _| {
7697 (
7698 movement::previous_word_start(map, head),
7699 SelectionGoal::None,
7700 )
7701 });
7702 })
7703 }
7704
7705 pub fn select_to_previous_subword_start(
7706 &mut self,
7707 _: &SelectToPreviousSubwordStart,
7708 cx: &mut ViewContext<Self>,
7709 ) {
7710 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7711 s.move_heads_with(|map, head, _| {
7712 (
7713 movement::previous_subword_start(map, head),
7714 SelectionGoal::None,
7715 )
7716 });
7717 })
7718 }
7719
7720 pub fn delete_to_previous_word_start(
7721 &mut self,
7722 action: &DeleteToPreviousWordStart,
7723 cx: &mut ViewContext<Self>,
7724 ) {
7725 self.transact(cx, |this, cx| {
7726 this.select_autoclose_pair(cx);
7727 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7728 let line_mode = s.line_mode;
7729 s.move_with(|map, selection| {
7730 if selection.is_empty() && !line_mode {
7731 let cursor = if action.ignore_newlines {
7732 movement::previous_word_start(map, selection.head())
7733 } else {
7734 movement::previous_word_start_or_newline(map, selection.head())
7735 };
7736 selection.set_head(cursor, SelectionGoal::None);
7737 }
7738 });
7739 });
7740 this.insert("", cx);
7741 });
7742 }
7743
7744 pub fn delete_to_previous_subword_start(
7745 &mut self,
7746 _: &DeleteToPreviousSubwordStart,
7747 cx: &mut ViewContext<Self>,
7748 ) {
7749 self.transact(cx, |this, cx| {
7750 this.select_autoclose_pair(cx);
7751 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7752 let line_mode = s.line_mode;
7753 s.move_with(|map, selection| {
7754 if selection.is_empty() && !line_mode {
7755 let cursor = movement::previous_subword_start(map, selection.head());
7756 selection.set_head(cursor, SelectionGoal::None);
7757 }
7758 });
7759 });
7760 this.insert("", cx);
7761 });
7762 }
7763
7764 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7765 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7766 s.move_cursors_with(|map, head, _| {
7767 (movement::next_word_end(map, head), SelectionGoal::None)
7768 });
7769 })
7770 }
7771
7772 pub fn move_to_next_subword_end(
7773 &mut self,
7774 _: &MoveToNextSubwordEnd,
7775 cx: &mut ViewContext<Self>,
7776 ) {
7777 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7778 s.move_cursors_with(|map, head, _| {
7779 (movement::next_subword_end(map, head), SelectionGoal::None)
7780 });
7781 })
7782 }
7783
7784 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7786 s.move_heads_with(|map, head, _| {
7787 (movement::next_word_end(map, head), SelectionGoal::None)
7788 });
7789 })
7790 }
7791
7792 pub fn select_to_next_subword_end(
7793 &mut self,
7794 _: &SelectToNextSubwordEnd,
7795 cx: &mut ViewContext<Self>,
7796 ) {
7797 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7798 s.move_heads_with(|map, head, _| {
7799 (movement::next_subword_end(map, head), SelectionGoal::None)
7800 });
7801 })
7802 }
7803
7804 pub fn delete_to_next_word_end(
7805 &mut self,
7806 action: &DeleteToNextWordEnd,
7807 cx: &mut ViewContext<Self>,
7808 ) {
7809 self.transact(cx, |this, cx| {
7810 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7811 let line_mode = s.line_mode;
7812 s.move_with(|map, selection| {
7813 if selection.is_empty() && !line_mode {
7814 let cursor = if action.ignore_newlines {
7815 movement::next_word_end(map, selection.head())
7816 } else {
7817 movement::next_word_end_or_newline(map, selection.head())
7818 };
7819 selection.set_head(cursor, SelectionGoal::None);
7820 }
7821 });
7822 });
7823 this.insert("", cx);
7824 });
7825 }
7826
7827 pub fn delete_to_next_subword_end(
7828 &mut self,
7829 _: &DeleteToNextSubwordEnd,
7830 cx: &mut ViewContext<Self>,
7831 ) {
7832 self.transact(cx, |this, cx| {
7833 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7834 s.move_with(|map, selection| {
7835 if selection.is_empty() {
7836 let cursor = movement::next_subword_end(map, selection.head());
7837 selection.set_head(cursor, SelectionGoal::None);
7838 }
7839 });
7840 });
7841 this.insert("", cx);
7842 });
7843 }
7844
7845 pub fn move_to_beginning_of_line(
7846 &mut self,
7847 action: &MoveToBeginningOfLine,
7848 cx: &mut ViewContext<Self>,
7849 ) {
7850 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7851 s.move_cursors_with(|map, head, _| {
7852 (
7853 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7854 SelectionGoal::None,
7855 )
7856 });
7857 })
7858 }
7859
7860 pub fn select_to_beginning_of_line(
7861 &mut self,
7862 action: &SelectToBeginningOfLine,
7863 cx: &mut ViewContext<Self>,
7864 ) {
7865 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7866 s.move_heads_with(|map, head, _| {
7867 (
7868 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7869 SelectionGoal::None,
7870 )
7871 });
7872 });
7873 }
7874
7875 pub fn delete_to_beginning_of_line(
7876 &mut self,
7877 _: &DeleteToBeginningOfLine,
7878 cx: &mut ViewContext<Self>,
7879 ) {
7880 self.transact(cx, |this, cx| {
7881 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7882 s.move_with(|_, selection| {
7883 selection.reversed = true;
7884 });
7885 });
7886
7887 this.select_to_beginning_of_line(
7888 &SelectToBeginningOfLine {
7889 stop_at_soft_wraps: false,
7890 },
7891 cx,
7892 );
7893 this.backspace(&Backspace, cx);
7894 });
7895 }
7896
7897 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7898 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7899 s.move_cursors_with(|map, head, _| {
7900 (
7901 movement::line_end(map, head, action.stop_at_soft_wraps),
7902 SelectionGoal::None,
7903 )
7904 });
7905 })
7906 }
7907
7908 pub fn select_to_end_of_line(
7909 &mut self,
7910 action: &SelectToEndOfLine,
7911 cx: &mut ViewContext<Self>,
7912 ) {
7913 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7914 s.move_heads_with(|map, head, _| {
7915 (
7916 movement::line_end(map, head, action.stop_at_soft_wraps),
7917 SelectionGoal::None,
7918 )
7919 });
7920 })
7921 }
7922
7923 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7924 self.transact(cx, |this, cx| {
7925 this.select_to_end_of_line(
7926 &SelectToEndOfLine {
7927 stop_at_soft_wraps: false,
7928 },
7929 cx,
7930 );
7931 this.delete(&Delete, cx);
7932 });
7933 }
7934
7935 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7936 self.transact(cx, |this, cx| {
7937 this.select_to_end_of_line(
7938 &SelectToEndOfLine {
7939 stop_at_soft_wraps: false,
7940 },
7941 cx,
7942 );
7943 this.cut(&Cut, cx);
7944 });
7945 }
7946
7947 pub fn move_to_start_of_paragraph(
7948 &mut self,
7949 _: &MoveToStartOfParagraph,
7950 cx: &mut ViewContext<Self>,
7951 ) {
7952 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7953 cx.propagate();
7954 return;
7955 }
7956
7957 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7958 s.move_with(|map, selection| {
7959 selection.collapse_to(
7960 movement::start_of_paragraph(map, selection.head(), 1),
7961 SelectionGoal::None,
7962 )
7963 });
7964 })
7965 }
7966
7967 pub fn move_to_end_of_paragraph(
7968 &mut self,
7969 _: &MoveToEndOfParagraph,
7970 cx: &mut ViewContext<Self>,
7971 ) {
7972 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7973 cx.propagate();
7974 return;
7975 }
7976
7977 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7978 s.move_with(|map, selection| {
7979 selection.collapse_to(
7980 movement::end_of_paragraph(map, selection.head(), 1),
7981 SelectionGoal::None,
7982 )
7983 });
7984 })
7985 }
7986
7987 pub fn select_to_start_of_paragraph(
7988 &mut self,
7989 _: &SelectToStartOfParagraph,
7990 cx: &mut ViewContext<Self>,
7991 ) {
7992 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7993 cx.propagate();
7994 return;
7995 }
7996
7997 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7998 s.move_heads_with(|map, head, _| {
7999 (
8000 movement::start_of_paragraph(map, head, 1),
8001 SelectionGoal::None,
8002 )
8003 });
8004 })
8005 }
8006
8007 pub fn select_to_end_of_paragraph(
8008 &mut self,
8009 _: &SelectToEndOfParagraph,
8010 cx: &mut ViewContext<Self>,
8011 ) {
8012 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8013 cx.propagate();
8014 return;
8015 }
8016
8017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8018 s.move_heads_with(|map, head, _| {
8019 (
8020 movement::end_of_paragraph(map, head, 1),
8021 SelectionGoal::None,
8022 )
8023 });
8024 })
8025 }
8026
8027 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8028 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8029 cx.propagate();
8030 return;
8031 }
8032
8033 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8034 s.select_ranges(vec![0..0]);
8035 });
8036 }
8037
8038 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8039 let mut selection = self.selections.last::<Point>(cx);
8040 selection.set_head(Point::zero(), SelectionGoal::None);
8041
8042 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8043 s.select(vec![selection]);
8044 });
8045 }
8046
8047 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8048 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8049 cx.propagate();
8050 return;
8051 }
8052
8053 let cursor = self.buffer.read(cx).read(cx).len();
8054 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8055 s.select_ranges(vec![cursor..cursor])
8056 });
8057 }
8058
8059 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8060 self.nav_history = nav_history;
8061 }
8062
8063 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8064 self.nav_history.as_ref()
8065 }
8066
8067 fn push_to_nav_history(
8068 &mut self,
8069 cursor_anchor: Anchor,
8070 new_position: Option<Point>,
8071 cx: &mut ViewContext<Self>,
8072 ) {
8073 if let Some(nav_history) = self.nav_history.as_mut() {
8074 let buffer = self.buffer.read(cx).read(cx);
8075 let cursor_position = cursor_anchor.to_point(&buffer);
8076 let scroll_state = self.scroll_manager.anchor();
8077 let scroll_top_row = scroll_state.top_row(&buffer);
8078 drop(buffer);
8079
8080 if let Some(new_position) = new_position {
8081 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8082 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8083 return;
8084 }
8085 }
8086
8087 nav_history.push(
8088 Some(NavigationData {
8089 cursor_anchor,
8090 cursor_position,
8091 scroll_anchor: scroll_state,
8092 scroll_top_row,
8093 }),
8094 cx,
8095 );
8096 }
8097 }
8098
8099 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8100 let buffer = self.buffer.read(cx).snapshot(cx);
8101 let mut selection = self.selections.first::<usize>(cx);
8102 selection.set_head(buffer.len(), SelectionGoal::None);
8103 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8104 s.select(vec![selection]);
8105 });
8106 }
8107
8108 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8109 let end = self.buffer.read(cx).read(cx).len();
8110 self.change_selections(None, cx, |s| {
8111 s.select_ranges(vec![0..end]);
8112 });
8113 }
8114
8115 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8116 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8117 let mut selections = self.selections.all::<Point>(cx);
8118 let max_point = display_map.buffer_snapshot.max_point();
8119 for selection in &mut selections {
8120 let rows = selection.spanned_rows(true, &display_map);
8121 selection.start = Point::new(rows.start.0, 0);
8122 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8123 selection.reversed = false;
8124 }
8125 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8126 s.select(selections);
8127 });
8128 }
8129
8130 pub fn split_selection_into_lines(
8131 &mut self,
8132 _: &SplitSelectionIntoLines,
8133 cx: &mut ViewContext<Self>,
8134 ) {
8135 let mut to_unfold = Vec::new();
8136 let mut new_selection_ranges = Vec::new();
8137 {
8138 let selections = self.selections.all::<Point>(cx);
8139 let buffer = self.buffer.read(cx).read(cx);
8140 for selection in selections {
8141 for row in selection.start.row..selection.end.row {
8142 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8143 new_selection_ranges.push(cursor..cursor);
8144 }
8145 new_selection_ranges.push(selection.end..selection.end);
8146 to_unfold.push(selection.start..selection.end);
8147 }
8148 }
8149 self.unfold_ranges(to_unfold, true, true, cx);
8150 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8151 s.select_ranges(new_selection_ranges);
8152 });
8153 }
8154
8155 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8156 self.add_selection(true, cx);
8157 }
8158
8159 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8160 self.add_selection(false, cx);
8161 }
8162
8163 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8164 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8165 let mut selections = self.selections.all::<Point>(cx);
8166 let text_layout_details = self.text_layout_details(cx);
8167 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8168 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8169 let range = oldest_selection.display_range(&display_map).sorted();
8170
8171 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8172 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8173 let positions = start_x.min(end_x)..start_x.max(end_x);
8174
8175 selections.clear();
8176 let mut stack = Vec::new();
8177 for row in range.start.row().0..=range.end.row().0 {
8178 if let Some(selection) = self.selections.build_columnar_selection(
8179 &display_map,
8180 DisplayRow(row),
8181 &positions,
8182 oldest_selection.reversed,
8183 &text_layout_details,
8184 ) {
8185 stack.push(selection.id);
8186 selections.push(selection);
8187 }
8188 }
8189
8190 if above {
8191 stack.reverse();
8192 }
8193
8194 AddSelectionsState { above, stack }
8195 });
8196
8197 let last_added_selection = *state.stack.last().unwrap();
8198 let mut new_selections = Vec::new();
8199 if above == state.above {
8200 let end_row = if above {
8201 DisplayRow(0)
8202 } else {
8203 display_map.max_point().row()
8204 };
8205
8206 'outer: for selection in selections {
8207 if selection.id == last_added_selection {
8208 let range = selection.display_range(&display_map).sorted();
8209 debug_assert_eq!(range.start.row(), range.end.row());
8210 let mut row = range.start.row();
8211 let positions =
8212 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8213 px(start)..px(end)
8214 } else {
8215 let start_x =
8216 display_map.x_for_display_point(range.start, &text_layout_details);
8217 let end_x =
8218 display_map.x_for_display_point(range.end, &text_layout_details);
8219 start_x.min(end_x)..start_x.max(end_x)
8220 };
8221
8222 while row != end_row {
8223 if above {
8224 row.0 -= 1;
8225 } else {
8226 row.0 += 1;
8227 }
8228
8229 if let Some(new_selection) = self.selections.build_columnar_selection(
8230 &display_map,
8231 row,
8232 &positions,
8233 selection.reversed,
8234 &text_layout_details,
8235 ) {
8236 state.stack.push(new_selection.id);
8237 if above {
8238 new_selections.push(new_selection);
8239 new_selections.push(selection);
8240 } else {
8241 new_selections.push(selection);
8242 new_selections.push(new_selection);
8243 }
8244
8245 continue 'outer;
8246 }
8247 }
8248 }
8249
8250 new_selections.push(selection);
8251 }
8252 } else {
8253 new_selections = selections;
8254 new_selections.retain(|s| s.id != last_added_selection);
8255 state.stack.pop();
8256 }
8257
8258 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8259 s.select(new_selections);
8260 });
8261 if state.stack.len() > 1 {
8262 self.add_selections_state = Some(state);
8263 }
8264 }
8265
8266 pub fn select_next_match_internal(
8267 &mut self,
8268 display_map: &DisplaySnapshot,
8269 replace_newest: bool,
8270 autoscroll: Option<Autoscroll>,
8271 cx: &mut ViewContext<Self>,
8272 ) -> Result<()> {
8273 fn select_next_match_ranges(
8274 this: &mut Editor,
8275 range: Range<usize>,
8276 replace_newest: bool,
8277 auto_scroll: Option<Autoscroll>,
8278 cx: &mut ViewContext<Editor>,
8279 ) {
8280 this.unfold_ranges([range.clone()], false, true, cx);
8281 this.change_selections(auto_scroll, cx, |s| {
8282 if replace_newest {
8283 s.delete(s.newest_anchor().id);
8284 }
8285 s.insert_range(range.clone());
8286 });
8287 }
8288
8289 let buffer = &display_map.buffer_snapshot;
8290 let mut selections = self.selections.all::<usize>(cx);
8291 if let Some(mut select_next_state) = self.select_next_state.take() {
8292 let query = &select_next_state.query;
8293 if !select_next_state.done {
8294 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8295 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8296 let mut next_selected_range = None;
8297
8298 let bytes_after_last_selection =
8299 buffer.bytes_in_range(last_selection.end..buffer.len());
8300 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8301 let query_matches = query
8302 .stream_find_iter(bytes_after_last_selection)
8303 .map(|result| (last_selection.end, result))
8304 .chain(
8305 query
8306 .stream_find_iter(bytes_before_first_selection)
8307 .map(|result| (0, result)),
8308 );
8309
8310 for (start_offset, query_match) in query_matches {
8311 let query_match = query_match.unwrap(); // can only fail due to I/O
8312 let offset_range =
8313 start_offset + query_match.start()..start_offset + query_match.end();
8314 let display_range = offset_range.start.to_display_point(display_map)
8315 ..offset_range.end.to_display_point(display_map);
8316
8317 if !select_next_state.wordwise
8318 || (!movement::is_inside_word(display_map, display_range.start)
8319 && !movement::is_inside_word(display_map, display_range.end))
8320 {
8321 // TODO: This is n^2, because we might check all the selections
8322 if !selections
8323 .iter()
8324 .any(|selection| selection.range().overlaps(&offset_range))
8325 {
8326 next_selected_range = Some(offset_range);
8327 break;
8328 }
8329 }
8330 }
8331
8332 if let Some(next_selected_range) = next_selected_range {
8333 select_next_match_ranges(
8334 self,
8335 next_selected_range,
8336 replace_newest,
8337 autoscroll,
8338 cx,
8339 );
8340 } else {
8341 select_next_state.done = true;
8342 }
8343 }
8344
8345 self.select_next_state = Some(select_next_state);
8346 } else {
8347 let mut only_carets = true;
8348 let mut same_text_selected = true;
8349 let mut selected_text = None;
8350
8351 let mut selections_iter = selections.iter().peekable();
8352 while let Some(selection) = selections_iter.next() {
8353 if selection.start != selection.end {
8354 only_carets = false;
8355 }
8356
8357 if same_text_selected {
8358 if selected_text.is_none() {
8359 selected_text =
8360 Some(buffer.text_for_range(selection.range()).collect::<String>());
8361 }
8362
8363 if let Some(next_selection) = selections_iter.peek() {
8364 if next_selection.range().len() == selection.range().len() {
8365 let next_selected_text = buffer
8366 .text_for_range(next_selection.range())
8367 .collect::<String>();
8368 if Some(next_selected_text) != selected_text {
8369 same_text_selected = false;
8370 selected_text = None;
8371 }
8372 } else {
8373 same_text_selected = false;
8374 selected_text = None;
8375 }
8376 }
8377 }
8378 }
8379
8380 if only_carets {
8381 for selection in &mut selections {
8382 let word_range = movement::surrounding_word(
8383 display_map,
8384 selection.start.to_display_point(display_map),
8385 );
8386 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8387 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8388 selection.goal = SelectionGoal::None;
8389 selection.reversed = false;
8390 select_next_match_ranges(
8391 self,
8392 selection.start..selection.end,
8393 replace_newest,
8394 autoscroll,
8395 cx,
8396 );
8397 }
8398
8399 if selections.len() == 1 {
8400 let selection = selections
8401 .last()
8402 .expect("ensured that there's only one selection");
8403 let query = buffer
8404 .text_for_range(selection.start..selection.end)
8405 .collect::<String>();
8406 let is_empty = query.is_empty();
8407 let select_state = SelectNextState {
8408 query: AhoCorasick::new(&[query])?,
8409 wordwise: true,
8410 done: is_empty,
8411 };
8412 self.select_next_state = Some(select_state);
8413 } else {
8414 self.select_next_state = None;
8415 }
8416 } else if let Some(selected_text) = selected_text {
8417 self.select_next_state = Some(SelectNextState {
8418 query: AhoCorasick::new(&[selected_text])?,
8419 wordwise: false,
8420 done: false,
8421 });
8422 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8423 }
8424 }
8425 Ok(())
8426 }
8427
8428 pub fn select_all_matches(
8429 &mut self,
8430 _action: &SelectAllMatches,
8431 cx: &mut ViewContext<Self>,
8432 ) -> Result<()> {
8433 self.push_to_selection_history();
8434 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8435
8436 self.select_next_match_internal(&display_map, false, None, cx)?;
8437 let Some(select_next_state) = self.select_next_state.as_mut() else {
8438 return Ok(());
8439 };
8440 if select_next_state.done {
8441 return Ok(());
8442 }
8443
8444 let mut new_selections = self.selections.all::<usize>(cx);
8445
8446 let buffer = &display_map.buffer_snapshot;
8447 let query_matches = select_next_state
8448 .query
8449 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8450
8451 for query_match in query_matches {
8452 let query_match = query_match.unwrap(); // can only fail due to I/O
8453 let offset_range = query_match.start()..query_match.end();
8454 let display_range = offset_range.start.to_display_point(&display_map)
8455 ..offset_range.end.to_display_point(&display_map);
8456
8457 if !select_next_state.wordwise
8458 || (!movement::is_inside_word(&display_map, display_range.start)
8459 && !movement::is_inside_word(&display_map, display_range.end))
8460 {
8461 self.selections.change_with(cx, |selections| {
8462 new_selections.push(Selection {
8463 id: selections.new_selection_id(),
8464 start: offset_range.start,
8465 end: offset_range.end,
8466 reversed: false,
8467 goal: SelectionGoal::None,
8468 });
8469 });
8470 }
8471 }
8472
8473 new_selections.sort_by_key(|selection| selection.start);
8474 let mut ix = 0;
8475 while ix + 1 < new_selections.len() {
8476 let current_selection = &new_selections[ix];
8477 let next_selection = &new_selections[ix + 1];
8478 if current_selection.range().overlaps(&next_selection.range()) {
8479 if current_selection.id < next_selection.id {
8480 new_selections.remove(ix + 1);
8481 } else {
8482 new_selections.remove(ix);
8483 }
8484 } else {
8485 ix += 1;
8486 }
8487 }
8488
8489 select_next_state.done = true;
8490 self.unfold_ranges(
8491 new_selections.iter().map(|selection| selection.range()),
8492 false,
8493 false,
8494 cx,
8495 );
8496 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8497 selections.select(new_selections)
8498 });
8499
8500 Ok(())
8501 }
8502
8503 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8504 self.push_to_selection_history();
8505 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8506 self.select_next_match_internal(
8507 &display_map,
8508 action.replace_newest,
8509 Some(Autoscroll::newest()),
8510 cx,
8511 )?;
8512 Ok(())
8513 }
8514
8515 pub fn select_previous(
8516 &mut self,
8517 action: &SelectPrevious,
8518 cx: &mut ViewContext<Self>,
8519 ) -> Result<()> {
8520 self.push_to_selection_history();
8521 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8522 let buffer = &display_map.buffer_snapshot;
8523 let mut selections = self.selections.all::<usize>(cx);
8524 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8525 let query = &select_prev_state.query;
8526 if !select_prev_state.done {
8527 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8528 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8529 let mut next_selected_range = None;
8530 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8531 let bytes_before_last_selection =
8532 buffer.reversed_bytes_in_range(0..last_selection.start);
8533 let bytes_after_first_selection =
8534 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8535 let query_matches = query
8536 .stream_find_iter(bytes_before_last_selection)
8537 .map(|result| (last_selection.start, result))
8538 .chain(
8539 query
8540 .stream_find_iter(bytes_after_first_selection)
8541 .map(|result| (buffer.len(), result)),
8542 );
8543 for (end_offset, query_match) in query_matches {
8544 let query_match = query_match.unwrap(); // can only fail due to I/O
8545 let offset_range =
8546 end_offset - query_match.end()..end_offset - query_match.start();
8547 let display_range = offset_range.start.to_display_point(&display_map)
8548 ..offset_range.end.to_display_point(&display_map);
8549
8550 if !select_prev_state.wordwise
8551 || (!movement::is_inside_word(&display_map, display_range.start)
8552 && !movement::is_inside_word(&display_map, display_range.end))
8553 {
8554 next_selected_range = Some(offset_range);
8555 break;
8556 }
8557 }
8558
8559 if let Some(next_selected_range) = next_selected_range {
8560 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8561 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8562 if action.replace_newest {
8563 s.delete(s.newest_anchor().id);
8564 }
8565 s.insert_range(next_selected_range);
8566 });
8567 } else {
8568 select_prev_state.done = true;
8569 }
8570 }
8571
8572 self.select_prev_state = Some(select_prev_state);
8573 } else {
8574 let mut only_carets = true;
8575 let mut same_text_selected = true;
8576 let mut selected_text = None;
8577
8578 let mut selections_iter = selections.iter().peekable();
8579 while let Some(selection) = selections_iter.next() {
8580 if selection.start != selection.end {
8581 only_carets = false;
8582 }
8583
8584 if same_text_selected {
8585 if selected_text.is_none() {
8586 selected_text =
8587 Some(buffer.text_for_range(selection.range()).collect::<String>());
8588 }
8589
8590 if let Some(next_selection) = selections_iter.peek() {
8591 if next_selection.range().len() == selection.range().len() {
8592 let next_selected_text = buffer
8593 .text_for_range(next_selection.range())
8594 .collect::<String>();
8595 if Some(next_selected_text) != selected_text {
8596 same_text_selected = false;
8597 selected_text = None;
8598 }
8599 } else {
8600 same_text_selected = false;
8601 selected_text = None;
8602 }
8603 }
8604 }
8605 }
8606
8607 if only_carets {
8608 for selection in &mut selections {
8609 let word_range = movement::surrounding_word(
8610 &display_map,
8611 selection.start.to_display_point(&display_map),
8612 );
8613 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8614 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8615 selection.goal = SelectionGoal::None;
8616 selection.reversed = false;
8617 }
8618 if selections.len() == 1 {
8619 let selection = selections
8620 .last()
8621 .expect("ensured that there's only one selection");
8622 let query = buffer
8623 .text_for_range(selection.start..selection.end)
8624 .collect::<String>();
8625 let is_empty = query.is_empty();
8626 let select_state = SelectNextState {
8627 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8628 wordwise: true,
8629 done: is_empty,
8630 };
8631 self.select_prev_state = Some(select_state);
8632 } else {
8633 self.select_prev_state = None;
8634 }
8635
8636 self.unfold_ranges(
8637 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8638 false,
8639 true,
8640 cx,
8641 );
8642 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8643 s.select(selections);
8644 });
8645 } else if let Some(selected_text) = selected_text {
8646 self.select_prev_state = Some(SelectNextState {
8647 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8648 wordwise: false,
8649 done: false,
8650 });
8651 self.select_previous(action, cx)?;
8652 }
8653 }
8654 Ok(())
8655 }
8656
8657 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8658 let text_layout_details = &self.text_layout_details(cx);
8659 self.transact(cx, |this, cx| {
8660 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8661 let mut edits = Vec::new();
8662 let mut selection_edit_ranges = Vec::new();
8663 let mut last_toggled_row = None;
8664 let snapshot = this.buffer.read(cx).read(cx);
8665 let empty_str: Arc<str> = Arc::default();
8666 let mut suffixes_inserted = Vec::new();
8667
8668 fn comment_prefix_range(
8669 snapshot: &MultiBufferSnapshot,
8670 row: MultiBufferRow,
8671 comment_prefix: &str,
8672 comment_prefix_whitespace: &str,
8673 ) -> Range<Point> {
8674 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8675
8676 let mut line_bytes = snapshot
8677 .bytes_in_range(start..snapshot.max_point())
8678 .flatten()
8679 .copied();
8680
8681 // If this line currently begins with the line comment prefix, then record
8682 // the range containing the prefix.
8683 if line_bytes
8684 .by_ref()
8685 .take(comment_prefix.len())
8686 .eq(comment_prefix.bytes())
8687 {
8688 // Include any whitespace that matches the comment prefix.
8689 let matching_whitespace_len = line_bytes
8690 .zip(comment_prefix_whitespace.bytes())
8691 .take_while(|(a, b)| a == b)
8692 .count() as u32;
8693 let end = Point::new(
8694 start.row,
8695 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8696 );
8697 start..end
8698 } else {
8699 start..start
8700 }
8701 }
8702
8703 fn comment_suffix_range(
8704 snapshot: &MultiBufferSnapshot,
8705 row: MultiBufferRow,
8706 comment_suffix: &str,
8707 comment_suffix_has_leading_space: bool,
8708 ) -> Range<Point> {
8709 let end = Point::new(row.0, snapshot.line_len(row));
8710 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8711
8712 let mut line_end_bytes = snapshot
8713 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8714 .flatten()
8715 .copied();
8716
8717 let leading_space_len = if suffix_start_column > 0
8718 && line_end_bytes.next() == Some(b' ')
8719 && comment_suffix_has_leading_space
8720 {
8721 1
8722 } else {
8723 0
8724 };
8725
8726 // If this line currently begins with the line comment prefix, then record
8727 // the range containing the prefix.
8728 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8729 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8730 start..end
8731 } else {
8732 end..end
8733 }
8734 }
8735
8736 // TODO: Handle selections that cross excerpts
8737 for selection in &mut selections {
8738 let start_column = snapshot
8739 .indent_size_for_line(MultiBufferRow(selection.start.row))
8740 .len;
8741 let language = if let Some(language) =
8742 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8743 {
8744 language
8745 } else {
8746 continue;
8747 };
8748
8749 selection_edit_ranges.clear();
8750
8751 // If multiple selections contain a given row, avoid processing that
8752 // row more than once.
8753 let mut start_row = MultiBufferRow(selection.start.row);
8754 if last_toggled_row == Some(start_row) {
8755 start_row = start_row.next_row();
8756 }
8757 let end_row =
8758 if selection.end.row > selection.start.row && selection.end.column == 0 {
8759 MultiBufferRow(selection.end.row - 1)
8760 } else {
8761 MultiBufferRow(selection.end.row)
8762 };
8763 last_toggled_row = Some(end_row);
8764
8765 if start_row > end_row {
8766 continue;
8767 }
8768
8769 // If the language has line comments, toggle those.
8770 let full_comment_prefixes = language.line_comment_prefixes();
8771 if !full_comment_prefixes.is_empty() {
8772 let first_prefix = full_comment_prefixes
8773 .first()
8774 .expect("prefixes is non-empty");
8775 let prefix_trimmed_lengths = full_comment_prefixes
8776 .iter()
8777 .map(|p| p.trim_end_matches(' ').len())
8778 .collect::<SmallVec<[usize; 4]>>();
8779
8780 let mut all_selection_lines_are_comments = true;
8781
8782 for row in start_row.0..=end_row.0 {
8783 let row = MultiBufferRow(row);
8784 if start_row < end_row && snapshot.is_line_blank(row) {
8785 continue;
8786 }
8787
8788 let prefix_range = full_comment_prefixes
8789 .iter()
8790 .zip(prefix_trimmed_lengths.iter().copied())
8791 .map(|(prefix, trimmed_prefix_len)| {
8792 comment_prefix_range(
8793 snapshot.deref(),
8794 row,
8795 &prefix[..trimmed_prefix_len],
8796 &prefix[trimmed_prefix_len..],
8797 )
8798 })
8799 .max_by_key(|range| range.end.column - range.start.column)
8800 .expect("prefixes is non-empty");
8801
8802 if prefix_range.is_empty() {
8803 all_selection_lines_are_comments = false;
8804 }
8805
8806 selection_edit_ranges.push(prefix_range);
8807 }
8808
8809 if all_selection_lines_are_comments {
8810 edits.extend(
8811 selection_edit_ranges
8812 .iter()
8813 .cloned()
8814 .map(|range| (range, empty_str.clone())),
8815 );
8816 } else {
8817 let min_column = selection_edit_ranges
8818 .iter()
8819 .map(|range| range.start.column)
8820 .min()
8821 .unwrap_or(0);
8822 edits.extend(selection_edit_ranges.iter().map(|range| {
8823 let position = Point::new(range.start.row, min_column);
8824 (position..position, first_prefix.clone())
8825 }));
8826 }
8827 } else if let Some((full_comment_prefix, comment_suffix)) =
8828 language.block_comment_delimiters()
8829 {
8830 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8831 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8832 let prefix_range = comment_prefix_range(
8833 snapshot.deref(),
8834 start_row,
8835 comment_prefix,
8836 comment_prefix_whitespace,
8837 );
8838 let suffix_range = comment_suffix_range(
8839 snapshot.deref(),
8840 end_row,
8841 comment_suffix.trim_start_matches(' '),
8842 comment_suffix.starts_with(' '),
8843 );
8844
8845 if prefix_range.is_empty() || suffix_range.is_empty() {
8846 edits.push((
8847 prefix_range.start..prefix_range.start,
8848 full_comment_prefix.clone(),
8849 ));
8850 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8851 suffixes_inserted.push((end_row, comment_suffix.len()));
8852 } else {
8853 edits.push((prefix_range, empty_str.clone()));
8854 edits.push((suffix_range, empty_str.clone()));
8855 }
8856 } else {
8857 continue;
8858 }
8859 }
8860
8861 drop(snapshot);
8862 this.buffer.update(cx, |buffer, cx| {
8863 buffer.edit(edits, None, cx);
8864 });
8865
8866 // Adjust selections so that they end before any comment suffixes that
8867 // were inserted.
8868 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8869 let mut selections = this.selections.all::<Point>(cx);
8870 let snapshot = this.buffer.read(cx).read(cx);
8871 for selection in &mut selections {
8872 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8873 match row.cmp(&MultiBufferRow(selection.end.row)) {
8874 Ordering::Less => {
8875 suffixes_inserted.next();
8876 continue;
8877 }
8878 Ordering::Greater => break,
8879 Ordering::Equal => {
8880 if selection.end.column == snapshot.line_len(row) {
8881 if selection.is_empty() {
8882 selection.start.column -= suffix_len as u32;
8883 }
8884 selection.end.column -= suffix_len as u32;
8885 }
8886 break;
8887 }
8888 }
8889 }
8890 }
8891
8892 drop(snapshot);
8893 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8894
8895 let selections = this.selections.all::<Point>(cx);
8896 let selections_on_single_row = selections.windows(2).all(|selections| {
8897 selections[0].start.row == selections[1].start.row
8898 && selections[0].end.row == selections[1].end.row
8899 && selections[0].start.row == selections[0].end.row
8900 });
8901 let selections_selecting = selections
8902 .iter()
8903 .any(|selection| selection.start != selection.end);
8904 let advance_downwards = action.advance_downwards
8905 && selections_on_single_row
8906 && !selections_selecting
8907 && !matches!(this.mode, EditorMode::SingleLine { .. });
8908
8909 if advance_downwards {
8910 let snapshot = this.buffer.read(cx).snapshot(cx);
8911
8912 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8913 s.move_cursors_with(|display_snapshot, display_point, _| {
8914 let mut point = display_point.to_point(display_snapshot);
8915 point.row += 1;
8916 point = snapshot.clip_point(point, Bias::Left);
8917 let display_point = point.to_display_point(display_snapshot);
8918 let goal = SelectionGoal::HorizontalPosition(
8919 display_snapshot
8920 .x_for_display_point(display_point, text_layout_details)
8921 .into(),
8922 );
8923 (display_point, goal)
8924 })
8925 });
8926 }
8927 });
8928 }
8929
8930 pub fn select_enclosing_symbol(
8931 &mut self,
8932 _: &SelectEnclosingSymbol,
8933 cx: &mut ViewContext<Self>,
8934 ) {
8935 let buffer = self.buffer.read(cx).snapshot(cx);
8936 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8937
8938 fn update_selection(
8939 selection: &Selection<usize>,
8940 buffer_snap: &MultiBufferSnapshot,
8941 ) -> Option<Selection<usize>> {
8942 let cursor = selection.head();
8943 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8944 for symbol in symbols.iter().rev() {
8945 let start = symbol.range.start.to_offset(buffer_snap);
8946 let end = symbol.range.end.to_offset(buffer_snap);
8947 let new_range = start..end;
8948 if start < selection.start || end > selection.end {
8949 return Some(Selection {
8950 id: selection.id,
8951 start: new_range.start,
8952 end: new_range.end,
8953 goal: SelectionGoal::None,
8954 reversed: selection.reversed,
8955 });
8956 }
8957 }
8958 None
8959 }
8960
8961 let mut selected_larger_symbol = false;
8962 let new_selections = old_selections
8963 .iter()
8964 .map(|selection| match update_selection(selection, &buffer) {
8965 Some(new_selection) => {
8966 if new_selection.range() != selection.range() {
8967 selected_larger_symbol = true;
8968 }
8969 new_selection
8970 }
8971 None => selection.clone(),
8972 })
8973 .collect::<Vec<_>>();
8974
8975 if selected_larger_symbol {
8976 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8977 s.select(new_selections);
8978 });
8979 }
8980 }
8981
8982 pub fn select_larger_syntax_node(
8983 &mut self,
8984 _: &SelectLargerSyntaxNode,
8985 cx: &mut ViewContext<Self>,
8986 ) {
8987 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8988 let buffer = self.buffer.read(cx).snapshot(cx);
8989 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8990
8991 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8992 let mut selected_larger_node = false;
8993 let new_selections = old_selections
8994 .iter()
8995 .map(|selection| {
8996 let old_range = selection.start..selection.end;
8997 let mut new_range = old_range.clone();
8998 while let Some(containing_range) =
8999 buffer.range_for_syntax_ancestor(new_range.clone())
9000 {
9001 new_range = containing_range;
9002 if !display_map.intersects_fold(new_range.start)
9003 && !display_map.intersects_fold(new_range.end)
9004 {
9005 break;
9006 }
9007 }
9008
9009 selected_larger_node |= new_range != old_range;
9010 Selection {
9011 id: selection.id,
9012 start: new_range.start,
9013 end: new_range.end,
9014 goal: SelectionGoal::None,
9015 reversed: selection.reversed,
9016 }
9017 })
9018 .collect::<Vec<_>>();
9019
9020 if selected_larger_node {
9021 stack.push(old_selections);
9022 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9023 s.select(new_selections);
9024 });
9025 }
9026 self.select_larger_syntax_node_stack = stack;
9027 }
9028
9029 pub fn select_smaller_syntax_node(
9030 &mut self,
9031 _: &SelectSmallerSyntaxNode,
9032 cx: &mut ViewContext<Self>,
9033 ) {
9034 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9035 if let Some(selections) = stack.pop() {
9036 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9037 s.select(selections.to_vec());
9038 });
9039 }
9040 self.select_larger_syntax_node_stack = stack;
9041 }
9042
9043 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9044 if !EditorSettings::get_global(cx).gutter.runnables {
9045 self.clear_tasks();
9046 return Task::ready(());
9047 }
9048 let project = self.project.clone();
9049 cx.spawn(|this, mut cx| async move {
9050 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9051 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9052 }) else {
9053 return;
9054 };
9055
9056 let Some(project) = project else {
9057 return;
9058 };
9059
9060 let hide_runnables = project
9061 .update(&mut cx, |project, cx| {
9062 // Do not display any test indicators in non-dev server remote projects.
9063 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9064 })
9065 .unwrap_or(true);
9066 if hide_runnables {
9067 return;
9068 }
9069 let new_rows =
9070 cx.background_executor()
9071 .spawn({
9072 let snapshot = display_snapshot.clone();
9073 async move {
9074 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9075 }
9076 })
9077 .await;
9078 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9079
9080 this.update(&mut cx, |this, _| {
9081 this.clear_tasks();
9082 for (key, value) in rows {
9083 this.insert_tasks(key, value);
9084 }
9085 })
9086 .ok();
9087 })
9088 }
9089 fn fetch_runnable_ranges(
9090 snapshot: &DisplaySnapshot,
9091 range: Range<Anchor>,
9092 ) -> Vec<language::RunnableRange> {
9093 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9094 }
9095
9096 fn runnable_rows(
9097 project: Model<Project>,
9098 snapshot: DisplaySnapshot,
9099 runnable_ranges: Vec<RunnableRange>,
9100 mut cx: AsyncWindowContext,
9101 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9102 runnable_ranges
9103 .into_iter()
9104 .filter_map(|mut runnable| {
9105 let tasks = cx
9106 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9107 .ok()?;
9108 if tasks.is_empty() {
9109 return None;
9110 }
9111
9112 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9113
9114 let row = snapshot
9115 .buffer_snapshot
9116 .buffer_line_for_row(MultiBufferRow(point.row))?
9117 .1
9118 .start
9119 .row;
9120
9121 let context_range =
9122 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9123 Some((
9124 (runnable.buffer_id, row),
9125 RunnableTasks {
9126 templates: tasks,
9127 offset: MultiBufferOffset(runnable.run_range.start),
9128 context_range,
9129 column: point.column,
9130 extra_variables: runnable.extra_captures,
9131 },
9132 ))
9133 })
9134 .collect()
9135 }
9136
9137 fn templates_with_tags(
9138 project: &Model<Project>,
9139 runnable: &mut Runnable,
9140 cx: &WindowContext<'_>,
9141 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9142 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9143 let (worktree_id, file) = project
9144 .buffer_for_id(runnable.buffer, cx)
9145 .and_then(|buffer| buffer.read(cx).file())
9146 .map(|file| (file.worktree_id(cx), file.clone()))
9147 .unzip();
9148
9149 (
9150 project.task_store().read(cx).task_inventory().cloned(),
9151 worktree_id,
9152 file,
9153 )
9154 });
9155
9156 let tags = mem::take(&mut runnable.tags);
9157 let mut tags: Vec<_> = tags
9158 .into_iter()
9159 .flat_map(|tag| {
9160 let tag = tag.0.clone();
9161 inventory
9162 .as_ref()
9163 .into_iter()
9164 .flat_map(|inventory| {
9165 inventory.read(cx).list_tasks(
9166 file.clone(),
9167 Some(runnable.language.clone()),
9168 worktree_id,
9169 cx,
9170 )
9171 })
9172 .filter(move |(_, template)| {
9173 template.tags.iter().any(|source_tag| source_tag == &tag)
9174 })
9175 })
9176 .sorted_by_key(|(kind, _)| kind.to_owned())
9177 .collect();
9178 if let Some((leading_tag_source, _)) = tags.first() {
9179 // Strongest source wins; if we have worktree tag binding, prefer that to
9180 // global and language bindings;
9181 // if we have a global binding, prefer that to language binding.
9182 let first_mismatch = tags
9183 .iter()
9184 .position(|(tag_source, _)| tag_source != leading_tag_source);
9185 if let Some(index) = first_mismatch {
9186 tags.truncate(index);
9187 }
9188 }
9189
9190 tags
9191 }
9192
9193 pub fn move_to_enclosing_bracket(
9194 &mut self,
9195 _: &MoveToEnclosingBracket,
9196 cx: &mut ViewContext<Self>,
9197 ) {
9198 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9199 s.move_offsets_with(|snapshot, selection| {
9200 let Some(enclosing_bracket_ranges) =
9201 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9202 else {
9203 return;
9204 };
9205
9206 let mut best_length = usize::MAX;
9207 let mut best_inside = false;
9208 let mut best_in_bracket_range = false;
9209 let mut best_destination = None;
9210 for (open, close) in enclosing_bracket_ranges {
9211 let close = close.to_inclusive();
9212 let length = close.end() - open.start;
9213 let inside = selection.start >= open.end && selection.end <= *close.start();
9214 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9215 || close.contains(&selection.head());
9216
9217 // If best is next to a bracket and current isn't, skip
9218 if !in_bracket_range && best_in_bracket_range {
9219 continue;
9220 }
9221
9222 // Prefer smaller lengths unless best is inside and current isn't
9223 if length > best_length && (best_inside || !inside) {
9224 continue;
9225 }
9226
9227 best_length = length;
9228 best_inside = inside;
9229 best_in_bracket_range = in_bracket_range;
9230 best_destination = Some(
9231 if close.contains(&selection.start) && close.contains(&selection.end) {
9232 if inside {
9233 open.end
9234 } else {
9235 open.start
9236 }
9237 } else if inside {
9238 *close.start()
9239 } else {
9240 *close.end()
9241 },
9242 );
9243 }
9244
9245 if let Some(destination) = best_destination {
9246 selection.collapse_to(destination, SelectionGoal::None);
9247 }
9248 })
9249 });
9250 }
9251
9252 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9253 self.end_selection(cx);
9254 self.selection_history.mode = SelectionHistoryMode::Undoing;
9255 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9256 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9257 self.select_next_state = entry.select_next_state;
9258 self.select_prev_state = entry.select_prev_state;
9259 self.add_selections_state = entry.add_selections_state;
9260 self.request_autoscroll(Autoscroll::newest(), cx);
9261 }
9262 self.selection_history.mode = SelectionHistoryMode::Normal;
9263 }
9264
9265 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9266 self.end_selection(cx);
9267 self.selection_history.mode = SelectionHistoryMode::Redoing;
9268 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9269 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9270 self.select_next_state = entry.select_next_state;
9271 self.select_prev_state = entry.select_prev_state;
9272 self.add_selections_state = entry.add_selections_state;
9273 self.request_autoscroll(Autoscroll::newest(), cx);
9274 }
9275 self.selection_history.mode = SelectionHistoryMode::Normal;
9276 }
9277
9278 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9279 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9280 }
9281
9282 pub fn expand_excerpts_down(
9283 &mut self,
9284 action: &ExpandExcerptsDown,
9285 cx: &mut ViewContext<Self>,
9286 ) {
9287 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9288 }
9289
9290 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9291 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9292 }
9293
9294 pub fn expand_excerpts_for_direction(
9295 &mut self,
9296 lines: u32,
9297 direction: ExpandExcerptDirection,
9298 cx: &mut ViewContext<Self>,
9299 ) {
9300 let selections = self.selections.disjoint_anchors();
9301
9302 let lines = if lines == 0 {
9303 EditorSettings::get_global(cx).expand_excerpt_lines
9304 } else {
9305 lines
9306 };
9307
9308 self.buffer.update(cx, |buffer, cx| {
9309 buffer.expand_excerpts(
9310 selections
9311 .iter()
9312 .map(|selection| selection.head().excerpt_id)
9313 .dedup(),
9314 lines,
9315 direction,
9316 cx,
9317 )
9318 })
9319 }
9320
9321 pub fn expand_excerpt(
9322 &mut self,
9323 excerpt: ExcerptId,
9324 direction: ExpandExcerptDirection,
9325 cx: &mut ViewContext<Self>,
9326 ) {
9327 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9328 self.buffer.update(cx, |buffer, cx| {
9329 buffer.expand_excerpts([excerpt], lines, direction, cx)
9330 })
9331 }
9332
9333 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9334 self.go_to_diagnostic_impl(Direction::Next, cx)
9335 }
9336
9337 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9338 self.go_to_diagnostic_impl(Direction::Prev, cx)
9339 }
9340
9341 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9342 let buffer = self.buffer.read(cx).snapshot(cx);
9343 let selection = self.selections.newest::<usize>(cx);
9344
9345 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9346 if direction == Direction::Next {
9347 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9348 let (group_id, jump_to) = popover.activation_info();
9349 if self.activate_diagnostics(group_id, cx) {
9350 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9351 let mut new_selection = s.newest_anchor().clone();
9352 new_selection.collapse_to(jump_to, SelectionGoal::None);
9353 s.select_anchors(vec![new_selection.clone()]);
9354 });
9355 }
9356 return;
9357 }
9358 }
9359
9360 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9361 active_diagnostics
9362 .primary_range
9363 .to_offset(&buffer)
9364 .to_inclusive()
9365 });
9366 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9367 if active_primary_range.contains(&selection.head()) {
9368 *active_primary_range.start()
9369 } else {
9370 selection.head()
9371 }
9372 } else {
9373 selection.head()
9374 };
9375 let snapshot = self.snapshot(cx);
9376 loop {
9377 let diagnostics = if direction == Direction::Prev {
9378 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9379 } else {
9380 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9381 }
9382 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9383 let group = diagnostics
9384 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9385 // be sorted in a stable way
9386 // skip until we are at current active diagnostic, if it exists
9387 .skip_while(|entry| {
9388 (match direction {
9389 Direction::Prev => entry.range.start >= search_start,
9390 Direction::Next => entry.range.start <= search_start,
9391 }) && self
9392 .active_diagnostics
9393 .as_ref()
9394 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9395 })
9396 .find_map(|entry| {
9397 if entry.diagnostic.is_primary
9398 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9399 && !entry.range.is_empty()
9400 // if we match with the active diagnostic, skip it
9401 && Some(entry.diagnostic.group_id)
9402 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9403 {
9404 Some((entry.range, entry.diagnostic.group_id))
9405 } else {
9406 None
9407 }
9408 });
9409
9410 if let Some((primary_range, group_id)) = group {
9411 if self.activate_diagnostics(group_id, cx) {
9412 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9413 s.select(vec![Selection {
9414 id: selection.id,
9415 start: primary_range.start,
9416 end: primary_range.start,
9417 reversed: false,
9418 goal: SelectionGoal::None,
9419 }]);
9420 });
9421 }
9422 break;
9423 } else {
9424 // Cycle around to the start of the buffer, potentially moving back to the start of
9425 // the currently active diagnostic.
9426 active_primary_range.take();
9427 if direction == Direction::Prev {
9428 if search_start == buffer.len() {
9429 break;
9430 } else {
9431 search_start = buffer.len();
9432 }
9433 } else if search_start == 0 {
9434 break;
9435 } else {
9436 search_start = 0;
9437 }
9438 }
9439 }
9440 }
9441
9442 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9443 let snapshot = self
9444 .display_map
9445 .update(cx, |display_map, cx| display_map.snapshot(cx));
9446 let selection = self.selections.newest::<Point>(cx);
9447 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9448 }
9449
9450 fn go_to_hunk_after_position(
9451 &mut self,
9452 snapshot: &DisplaySnapshot,
9453 position: Point,
9454 cx: &mut ViewContext<'_, Editor>,
9455 ) -> Option<MultiBufferDiffHunk> {
9456 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9457 snapshot,
9458 position,
9459 false,
9460 snapshot
9461 .buffer_snapshot
9462 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9463 cx,
9464 ) {
9465 return Some(hunk);
9466 }
9467
9468 let wrapped_point = Point::zero();
9469 self.go_to_next_hunk_in_direction(
9470 snapshot,
9471 wrapped_point,
9472 true,
9473 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9474 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9475 ),
9476 cx,
9477 )
9478 }
9479
9480 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9481 let snapshot = self
9482 .display_map
9483 .update(cx, |display_map, cx| display_map.snapshot(cx));
9484 let selection = self.selections.newest::<Point>(cx);
9485
9486 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9487 }
9488
9489 fn go_to_hunk_before_position(
9490 &mut self,
9491 snapshot: &DisplaySnapshot,
9492 position: Point,
9493 cx: &mut ViewContext<'_, Editor>,
9494 ) -> Option<MultiBufferDiffHunk> {
9495 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9496 snapshot,
9497 position,
9498 false,
9499 snapshot
9500 .buffer_snapshot
9501 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9502 cx,
9503 ) {
9504 return Some(hunk);
9505 }
9506
9507 let wrapped_point = snapshot.buffer_snapshot.max_point();
9508 self.go_to_next_hunk_in_direction(
9509 snapshot,
9510 wrapped_point,
9511 true,
9512 snapshot
9513 .buffer_snapshot
9514 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9515 cx,
9516 )
9517 }
9518
9519 fn go_to_next_hunk_in_direction(
9520 &mut self,
9521 snapshot: &DisplaySnapshot,
9522 initial_point: Point,
9523 is_wrapped: bool,
9524 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9525 cx: &mut ViewContext<Editor>,
9526 ) -> Option<MultiBufferDiffHunk> {
9527 let display_point = initial_point.to_display_point(snapshot);
9528 let mut hunks = hunks
9529 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9530 .filter(|(display_hunk, _)| {
9531 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9532 })
9533 .dedup();
9534
9535 if let Some((display_hunk, hunk)) = hunks.next() {
9536 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9537 let row = display_hunk.start_display_row();
9538 let point = DisplayPoint::new(row, 0);
9539 s.select_display_ranges([point..point]);
9540 });
9541
9542 Some(hunk)
9543 } else {
9544 None
9545 }
9546 }
9547
9548 pub fn go_to_definition(
9549 &mut self,
9550 _: &GoToDefinition,
9551 cx: &mut ViewContext<Self>,
9552 ) -> Task<Result<Navigated>> {
9553 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9554 cx.spawn(|editor, mut cx| async move {
9555 if definition.await? == Navigated::Yes {
9556 return Ok(Navigated::Yes);
9557 }
9558 match editor.update(&mut cx, |editor, cx| {
9559 editor.find_all_references(&FindAllReferences, cx)
9560 })? {
9561 Some(references) => references.await,
9562 None => Ok(Navigated::No),
9563 }
9564 })
9565 }
9566
9567 pub fn go_to_declaration(
9568 &mut self,
9569 _: &GoToDeclaration,
9570 cx: &mut ViewContext<Self>,
9571 ) -> Task<Result<Navigated>> {
9572 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9573 }
9574
9575 pub fn go_to_declaration_split(
9576 &mut self,
9577 _: &GoToDeclaration,
9578 cx: &mut ViewContext<Self>,
9579 ) -> Task<Result<Navigated>> {
9580 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9581 }
9582
9583 pub fn go_to_implementation(
9584 &mut self,
9585 _: &GoToImplementation,
9586 cx: &mut ViewContext<Self>,
9587 ) -> Task<Result<Navigated>> {
9588 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9589 }
9590
9591 pub fn go_to_implementation_split(
9592 &mut self,
9593 _: &GoToImplementationSplit,
9594 cx: &mut ViewContext<Self>,
9595 ) -> Task<Result<Navigated>> {
9596 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9597 }
9598
9599 pub fn go_to_type_definition(
9600 &mut self,
9601 _: &GoToTypeDefinition,
9602 cx: &mut ViewContext<Self>,
9603 ) -> Task<Result<Navigated>> {
9604 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9605 }
9606
9607 pub fn go_to_definition_split(
9608 &mut self,
9609 _: &GoToDefinitionSplit,
9610 cx: &mut ViewContext<Self>,
9611 ) -> Task<Result<Navigated>> {
9612 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9613 }
9614
9615 pub fn go_to_type_definition_split(
9616 &mut self,
9617 _: &GoToTypeDefinitionSplit,
9618 cx: &mut ViewContext<Self>,
9619 ) -> Task<Result<Navigated>> {
9620 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9621 }
9622
9623 fn go_to_definition_of_kind(
9624 &mut self,
9625 kind: GotoDefinitionKind,
9626 split: bool,
9627 cx: &mut ViewContext<Self>,
9628 ) -> Task<Result<Navigated>> {
9629 let Some(provider) = self.semantics_provider.clone() else {
9630 return Task::ready(Ok(Navigated::No));
9631 };
9632 let buffer = self.buffer.read(cx);
9633 let head = self.selections.newest::<usize>(cx).head();
9634 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9635 text_anchor
9636 } else {
9637 return Task::ready(Ok(Navigated::No));
9638 };
9639
9640 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9641 return Task::ready(Ok(Navigated::No));
9642 };
9643
9644 cx.spawn(|editor, mut cx| async move {
9645 let definitions = definitions.await?;
9646 let navigated = editor
9647 .update(&mut cx, |editor, cx| {
9648 editor.navigate_to_hover_links(
9649 Some(kind),
9650 definitions
9651 .into_iter()
9652 .filter(|location| {
9653 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9654 })
9655 .map(HoverLink::Text)
9656 .collect::<Vec<_>>(),
9657 split,
9658 cx,
9659 )
9660 })?
9661 .await?;
9662 anyhow::Ok(navigated)
9663 })
9664 }
9665
9666 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9667 let position = self.selections.newest_anchor().head();
9668 let Some((buffer, buffer_position)) =
9669 self.buffer.read(cx).text_anchor_for_position(position, cx)
9670 else {
9671 return;
9672 };
9673
9674 cx.spawn(|editor, mut cx| async move {
9675 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9676 editor.update(&mut cx, |_, cx| {
9677 cx.open_url(&url);
9678 })
9679 } else {
9680 Ok(())
9681 }
9682 })
9683 .detach();
9684 }
9685
9686 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9687 let Some(workspace) = self.workspace() else {
9688 return;
9689 };
9690
9691 let position = self.selections.newest_anchor().head();
9692
9693 let Some((buffer, buffer_position)) =
9694 self.buffer.read(cx).text_anchor_for_position(position, cx)
9695 else {
9696 return;
9697 };
9698
9699 let project = self.project.clone();
9700
9701 cx.spawn(|_, mut cx| async move {
9702 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9703
9704 if let Some((_, path)) = result {
9705 workspace
9706 .update(&mut cx, |workspace, cx| {
9707 workspace.open_resolved_path(path, cx)
9708 })?
9709 .await?;
9710 }
9711 anyhow::Ok(())
9712 })
9713 .detach();
9714 }
9715
9716 pub(crate) fn navigate_to_hover_links(
9717 &mut self,
9718 kind: Option<GotoDefinitionKind>,
9719 mut definitions: Vec<HoverLink>,
9720 split: bool,
9721 cx: &mut ViewContext<Editor>,
9722 ) -> Task<Result<Navigated>> {
9723 // If there is one definition, just open it directly
9724 if definitions.len() == 1 {
9725 let definition = definitions.pop().unwrap();
9726
9727 enum TargetTaskResult {
9728 Location(Option<Location>),
9729 AlreadyNavigated,
9730 }
9731
9732 let target_task = match definition {
9733 HoverLink::Text(link) => {
9734 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9735 }
9736 HoverLink::InlayHint(lsp_location, server_id) => {
9737 let computation = self.compute_target_location(lsp_location, server_id, cx);
9738 cx.background_executor().spawn(async move {
9739 let location = computation.await?;
9740 Ok(TargetTaskResult::Location(location))
9741 })
9742 }
9743 HoverLink::Url(url) => {
9744 cx.open_url(&url);
9745 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9746 }
9747 HoverLink::File(path) => {
9748 if let Some(workspace) = self.workspace() {
9749 cx.spawn(|_, mut cx| async move {
9750 workspace
9751 .update(&mut cx, |workspace, cx| {
9752 workspace.open_resolved_path(path, cx)
9753 })?
9754 .await
9755 .map(|_| TargetTaskResult::AlreadyNavigated)
9756 })
9757 } else {
9758 Task::ready(Ok(TargetTaskResult::Location(None)))
9759 }
9760 }
9761 };
9762 cx.spawn(|editor, mut cx| async move {
9763 let target = match target_task.await.context("target resolution task")? {
9764 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9765 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9766 TargetTaskResult::Location(Some(target)) => target,
9767 };
9768
9769 editor.update(&mut cx, |editor, cx| {
9770 let Some(workspace) = editor.workspace() else {
9771 return Navigated::No;
9772 };
9773 let pane = workspace.read(cx).active_pane().clone();
9774
9775 let range = target.range.to_offset(target.buffer.read(cx));
9776 let range = editor.range_for_match(&range);
9777
9778 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9779 let buffer = target.buffer.read(cx);
9780 let range = check_multiline_range(buffer, range);
9781 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9782 s.select_ranges([range]);
9783 });
9784 } else {
9785 cx.window_context().defer(move |cx| {
9786 let target_editor: View<Self> =
9787 workspace.update(cx, |workspace, cx| {
9788 let pane = if split {
9789 workspace.adjacent_pane(cx)
9790 } else {
9791 workspace.active_pane().clone()
9792 };
9793
9794 workspace.open_project_item(
9795 pane,
9796 target.buffer.clone(),
9797 true,
9798 true,
9799 cx,
9800 )
9801 });
9802 target_editor.update(cx, |target_editor, cx| {
9803 // When selecting a definition in a different buffer, disable the nav history
9804 // to avoid creating a history entry at the previous cursor location.
9805 pane.update(cx, |pane, _| pane.disable_history());
9806 let buffer = target.buffer.read(cx);
9807 let range = check_multiline_range(buffer, range);
9808 target_editor.change_selections(
9809 Some(Autoscroll::focused()),
9810 cx,
9811 |s| {
9812 s.select_ranges([range]);
9813 },
9814 );
9815 pane.update(cx, |pane, _| pane.enable_history());
9816 });
9817 });
9818 }
9819 Navigated::Yes
9820 })
9821 })
9822 } else if !definitions.is_empty() {
9823 cx.spawn(|editor, mut cx| async move {
9824 let (title, location_tasks, workspace) = editor
9825 .update(&mut cx, |editor, cx| {
9826 let tab_kind = match kind {
9827 Some(GotoDefinitionKind::Implementation) => "Implementations",
9828 _ => "Definitions",
9829 };
9830 let title = definitions
9831 .iter()
9832 .find_map(|definition| match definition {
9833 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9834 let buffer = origin.buffer.read(cx);
9835 format!(
9836 "{} for {}",
9837 tab_kind,
9838 buffer
9839 .text_for_range(origin.range.clone())
9840 .collect::<String>()
9841 )
9842 }),
9843 HoverLink::InlayHint(_, _) => None,
9844 HoverLink::Url(_) => None,
9845 HoverLink::File(_) => None,
9846 })
9847 .unwrap_or(tab_kind.to_string());
9848 let location_tasks = definitions
9849 .into_iter()
9850 .map(|definition| match definition {
9851 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9852 HoverLink::InlayHint(lsp_location, server_id) => {
9853 editor.compute_target_location(lsp_location, server_id, cx)
9854 }
9855 HoverLink::Url(_) => Task::ready(Ok(None)),
9856 HoverLink::File(_) => Task::ready(Ok(None)),
9857 })
9858 .collect::<Vec<_>>();
9859 (title, location_tasks, editor.workspace().clone())
9860 })
9861 .context("location tasks preparation")?;
9862
9863 let locations = future::join_all(location_tasks)
9864 .await
9865 .into_iter()
9866 .filter_map(|location| location.transpose())
9867 .collect::<Result<_>>()
9868 .context("location tasks")?;
9869
9870 let Some(workspace) = workspace else {
9871 return Ok(Navigated::No);
9872 };
9873 let opened = workspace
9874 .update(&mut cx, |workspace, cx| {
9875 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9876 })
9877 .ok();
9878
9879 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9880 })
9881 } else {
9882 Task::ready(Ok(Navigated::No))
9883 }
9884 }
9885
9886 fn compute_target_location(
9887 &self,
9888 lsp_location: lsp::Location,
9889 server_id: LanguageServerId,
9890 cx: &mut ViewContext<Self>,
9891 ) -> Task<anyhow::Result<Option<Location>>> {
9892 let Some(project) = self.project.clone() else {
9893 return Task::Ready(Some(Ok(None)));
9894 };
9895
9896 cx.spawn(move |editor, mut cx| async move {
9897 let location_task = editor.update(&mut cx, |_, cx| {
9898 project.update(cx, |project, cx| {
9899 let language_server_name = project
9900 .language_server_statuses(cx)
9901 .find(|(id, _)| server_id == *id)
9902 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9903 language_server_name.map(|language_server_name| {
9904 project.open_local_buffer_via_lsp(
9905 lsp_location.uri.clone(),
9906 server_id,
9907 language_server_name,
9908 cx,
9909 )
9910 })
9911 })
9912 })?;
9913 let location = match location_task {
9914 Some(task) => Some({
9915 let target_buffer_handle = task.await.context("open local buffer")?;
9916 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9917 let target_start = target_buffer
9918 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9919 let target_end = target_buffer
9920 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9921 target_buffer.anchor_after(target_start)
9922 ..target_buffer.anchor_before(target_end)
9923 })?;
9924 Location {
9925 buffer: target_buffer_handle,
9926 range,
9927 }
9928 }),
9929 None => None,
9930 };
9931 Ok(location)
9932 })
9933 }
9934
9935 pub fn find_all_references(
9936 &mut self,
9937 _: &FindAllReferences,
9938 cx: &mut ViewContext<Self>,
9939 ) -> Option<Task<Result<Navigated>>> {
9940 let multi_buffer = self.buffer.read(cx);
9941 let selection = self.selections.newest::<usize>(cx);
9942 let head = selection.head();
9943
9944 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9945 let head_anchor = multi_buffer_snapshot.anchor_at(
9946 head,
9947 if head < selection.tail() {
9948 Bias::Right
9949 } else {
9950 Bias::Left
9951 },
9952 );
9953
9954 match self
9955 .find_all_references_task_sources
9956 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9957 {
9958 Ok(_) => {
9959 log::info!(
9960 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9961 );
9962 return None;
9963 }
9964 Err(i) => {
9965 self.find_all_references_task_sources.insert(i, head_anchor);
9966 }
9967 }
9968
9969 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9970 let workspace = self.workspace()?;
9971 let project = workspace.read(cx).project().clone();
9972 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9973 Some(cx.spawn(|editor, mut cx| async move {
9974 let _cleanup = defer({
9975 let mut cx = cx.clone();
9976 move || {
9977 let _ = editor.update(&mut cx, |editor, _| {
9978 if let Ok(i) =
9979 editor
9980 .find_all_references_task_sources
9981 .binary_search_by(|anchor| {
9982 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9983 })
9984 {
9985 editor.find_all_references_task_sources.remove(i);
9986 }
9987 });
9988 }
9989 });
9990
9991 let locations = references.await?;
9992 if locations.is_empty() {
9993 return anyhow::Ok(Navigated::No);
9994 }
9995
9996 workspace.update(&mut cx, |workspace, cx| {
9997 let title = locations
9998 .first()
9999 .as_ref()
10000 .map(|location| {
10001 let buffer = location.buffer.read(cx);
10002 format!(
10003 "References to `{}`",
10004 buffer
10005 .text_for_range(location.range.clone())
10006 .collect::<String>()
10007 )
10008 })
10009 .unwrap();
10010 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10011 Navigated::Yes
10012 })
10013 }))
10014 }
10015
10016 /// Opens a multibuffer with the given project locations in it
10017 pub fn open_locations_in_multibuffer(
10018 workspace: &mut Workspace,
10019 mut locations: Vec<Location>,
10020 title: String,
10021 split: bool,
10022 cx: &mut ViewContext<Workspace>,
10023 ) {
10024 // If there are multiple definitions, open them in a multibuffer
10025 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10026 let mut locations = locations.into_iter().peekable();
10027 let mut ranges_to_highlight = Vec::new();
10028 let capability = workspace.project().read(cx).capability();
10029
10030 let excerpt_buffer = cx.new_model(|cx| {
10031 let mut multibuffer = MultiBuffer::new(capability);
10032 while let Some(location) = locations.next() {
10033 let buffer = location.buffer.read(cx);
10034 let mut ranges_for_buffer = Vec::new();
10035 let range = location.range.to_offset(buffer);
10036 ranges_for_buffer.push(range.clone());
10037
10038 while let Some(next_location) = locations.peek() {
10039 if next_location.buffer == location.buffer {
10040 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10041 locations.next();
10042 } else {
10043 break;
10044 }
10045 }
10046
10047 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10048 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10049 location.buffer.clone(),
10050 ranges_for_buffer,
10051 DEFAULT_MULTIBUFFER_CONTEXT,
10052 cx,
10053 ))
10054 }
10055
10056 multibuffer.with_title(title)
10057 });
10058
10059 let editor = cx.new_view(|cx| {
10060 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10061 });
10062 editor.update(cx, |editor, cx| {
10063 if let Some(first_range) = ranges_to_highlight.first() {
10064 editor.change_selections(None, cx, |selections| {
10065 selections.clear_disjoint();
10066 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10067 });
10068 }
10069 editor.highlight_background::<Self>(
10070 &ranges_to_highlight,
10071 |theme| theme.editor_highlighted_line_background,
10072 cx,
10073 );
10074 });
10075
10076 let item = Box::new(editor);
10077 let item_id = item.item_id();
10078
10079 if split {
10080 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10081 } else {
10082 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10083 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10084 pane.close_current_preview_item(cx)
10085 } else {
10086 None
10087 }
10088 });
10089 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10090 }
10091 workspace.active_pane().update(cx, |pane, cx| {
10092 pane.set_preview_item_id(Some(item_id), cx);
10093 });
10094 }
10095
10096 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10097 use language::ToOffset as _;
10098
10099 let provider = self.semantics_provider.clone()?;
10100 let selection = self.selections.newest_anchor().clone();
10101 let (cursor_buffer, cursor_buffer_position) = self
10102 .buffer
10103 .read(cx)
10104 .text_anchor_for_position(selection.head(), cx)?;
10105 let (tail_buffer, cursor_buffer_position_end) = self
10106 .buffer
10107 .read(cx)
10108 .text_anchor_for_position(selection.tail(), cx)?;
10109 if tail_buffer != cursor_buffer {
10110 return None;
10111 }
10112
10113 let snapshot = cursor_buffer.read(cx).snapshot();
10114 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10115 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10116 let prepare_rename = provider
10117 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10118 .unwrap_or_else(|| Task::ready(Ok(None)));
10119 drop(snapshot);
10120
10121 Some(cx.spawn(|this, mut cx| async move {
10122 let rename_range = if let Some(range) = prepare_rename.await? {
10123 Some(range)
10124 } else {
10125 this.update(&mut cx, |this, cx| {
10126 let buffer = this.buffer.read(cx).snapshot(cx);
10127 let mut buffer_highlights = this
10128 .document_highlights_for_position(selection.head(), &buffer)
10129 .filter(|highlight| {
10130 highlight.start.excerpt_id == selection.head().excerpt_id
10131 && highlight.end.excerpt_id == selection.head().excerpt_id
10132 });
10133 buffer_highlights
10134 .next()
10135 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10136 })?
10137 };
10138 if let Some(rename_range) = rename_range {
10139 this.update(&mut cx, |this, cx| {
10140 let snapshot = cursor_buffer.read(cx).snapshot();
10141 let rename_buffer_range = rename_range.to_offset(&snapshot);
10142 let cursor_offset_in_rename_range =
10143 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10144 let cursor_offset_in_rename_range_end =
10145 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10146
10147 this.take_rename(false, cx);
10148 let buffer = this.buffer.read(cx).read(cx);
10149 let cursor_offset = selection.head().to_offset(&buffer);
10150 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10151 let rename_end = rename_start + rename_buffer_range.len();
10152 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10153 let mut old_highlight_id = None;
10154 let old_name: Arc<str> = buffer
10155 .chunks(rename_start..rename_end, true)
10156 .map(|chunk| {
10157 if old_highlight_id.is_none() {
10158 old_highlight_id = chunk.syntax_highlight_id;
10159 }
10160 chunk.text
10161 })
10162 .collect::<String>()
10163 .into();
10164
10165 drop(buffer);
10166
10167 // Position the selection in the rename editor so that it matches the current selection.
10168 this.show_local_selections = false;
10169 let rename_editor = cx.new_view(|cx| {
10170 let mut editor = Editor::single_line(cx);
10171 editor.buffer.update(cx, |buffer, cx| {
10172 buffer.edit([(0..0, old_name.clone())], None, cx)
10173 });
10174 let rename_selection_range = match cursor_offset_in_rename_range
10175 .cmp(&cursor_offset_in_rename_range_end)
10176 {
10177 Ordering::Equal => {
10178 editor.select_all(&SelectAll, cx);
10179 return editor;
10180 }
10181 Ordering::Less => {
10182 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10183 }
10184 Ordering::Greater => {
10185 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10186 }
10187 };
10188 if rename_selection_range.end > old_name.len() {
10189 editor.select_all(&SelectAll, cx);
10190 } else {
10191 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10192 s.select_ranges([rename_selection_range]);
10193 });
10194 }
10195 editor
10196 });
10197 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10198 if e == &EditorEvent::Focused {
10199 cx.emit(EditorEvent::FocusedIn)
10200 }
10201 })
10202 .detach();
10203
10204 let write_highlights =
10205 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10206 let read_highlights =
10207 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10208 let ranges = write_highlights
10209 .iter()
10210 .flat_map(|(_, ranges)| ranges.iter())
10211 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10212 .cloned()
10213 .collect();
10214
10215 this.highlight_text::<Rename>(
10216 ranges,
10217 HighlightStyle {
10218 fade_out: Some(0.6),
10219 ..Default::default()
10220 },
10221 cx,
10222 );
10223 let rename_focus_handle = rename_editor.focus_handle(cx);
10224 cx.focus(&rename_focus_handle);
10225 let block_id = this.insert_blocks(
10226 [BlockProperties {
10227 style: BlockStyle::Flex,
10228 placement: BlockPlacement::Below(range.start),
10229 height: 1,
10230 render: Box::new({
10231 let rename_editor = rename_editor.clone();
10232 move |cx: &mut BlockContext| {
10233 let mut text_style = cx.editor_style.text.clone();
10234 if let Some(highlight_style) = old_highlight_id
10235 .and_then(|h| h.style(&cx.editor_style.syntax))
10236 {
10237 text_style = text_style.highlight(highlight_style);
10238 }
10239 div()
10240 .pl(cx.anchor_x)
10241 .child(EditorElement::new(
10242 &rename_editor,
10243 EditorStyle {
10244 background: cx.theme().system().transparent,
10245 local_player: cx.editor_style.local_player,
10246 text: text_style,
10247 scrollbar_width: cx.editor_style.scrollbar_width,
10248 syntax: cx.editor_style.syntax.clone(),
10249 status: cx.editor_style.status.clone(),
10250 inlay_hints_style: HighlightStyle {
10251 font_weight: Some(FontWeight::BOLD),
10252 ..make_inlay_hints_style(cx)
10253 },
10254 suggestions_style: HighlightStyle {
10255 color: Some(cx.theme().status().predictive),
10256 ..HighlightStyle::default()
10257 },
10258 ..EditorStyle::default()
10259 },
10260 ))
10261 .into_any_element()
10262 }
10263 }),
10264 priority: 0,
10265 }],
10266 Some(Autoscroll::fit()),
10267 cx,
10268 )[0];
10269 this.pending_rename = Some(RenameState {
10270 range,
10271 old_name,
10272 editor: rename_editor,
10273 block_id,
10274 });
10275 })?;
10276 }
10277
10278 Ok(())
10279 }))
10280 }
10281
10282 pub fn confirm_rename(
10283 &mut self,
10284 _: &ConfirmRename,
10285 cx: &mut ViewContext<Self>,
10286 ) -> Option<Task<Result<()>>> {
10287 let rename = self.take_rename(false, cx)?;
10288 let workspace = self.workspace()?.downgrade();
10289 let (buffer, start) = self
10290 .buffer
10291 .read(cx)
10292 .text_anchor_for_position(rename.range.start, cx)?;
10293 let (end_buffer, _) = self
10294 .buffer
10295 .read(cx)
10296 .text_anchor_for_position(rename.range.end, cx)?;
10297 if buffer != end_buffer {
10298 return None;
10299 }
10300
10301 let old_name = rename.old_name;
10302 let new_name = rename.editor.read(cx).text(cx);
10303
10304 let rename = self.semantics_provider.as_ref()?.perform_rename(
10305 &buffer,
10306 start,
10307 new_name.clone(),
10308 cx,
10309 )?;
10310
10311 Some(cx.spawn(|editor, mut cx| async move {
10312 let project_transaction = rename.await?;
10313 Self::open_project_transaction(
10314 &editor,
10315 workspace,
10316 project_transaction,
10317 format!("Rename: {} → {}", old_name, new_name),
10318 cx.clone(),
10319 )
10320 .await?;
10321
10322 editor.update(&mut cx, |editor, cx| {
10323 editor.refresh_document_highlights(cx);
10324 })?;
10325 Ok(())
10326 }))
10327 }
10328
10329 fn take_rename(
10330 &mut self,
10331 moving_cursor: bool,
10332 cx: &mut ViewContext<Self>,
10333 ) -> Option<RenameState> {
10334 let rename = self.pending_rename.take()?;
10335 if rename.editor.focus_handle(cx).is_focused(cx) {
10336 cx.focus(&self.focus_handle);
10337 }
10338
10339 self.remove_blocks(
10340 [rename.block_id].into_iter().collect(),
10341 Some(Autoscroll::fit()),
10342 cx,
10343 );
10344 self.clear_highlights::<Rename>(cx);
10345 self.show_local_selections = true;
10346
10347 if moving_cursor {
10348 let rename_editor = rename.editor.read(cx);
10349 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10350
10351 // Update the selection to match the position of the selection inside
10352 // the rename editor.
10353 let snapshot = self.buffer.read(cx).read(cx);
10354 let rename_range = rename.range.to_offset(&snapshot);
10355 let cursor_in_editor = snapshot
10356 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10357 .min(rename_range.end);
10358 drop(snapshot);
10359
10360 self.change_selections(None, cx, |s| {
10361 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10362 });
10363 } else {
10364 self.refresh_document_highlights(cx);
10365 }
10366
10367 Some(rename)
10368 }
10369
10370 pub fn pending_rename(&self) -> Option<&RenameState> {
10371 self.pending_rename.as_ref()
10372 }
10373
10374 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10375 let project = match &self.project {
10376 Some(project) => project.clone(),
10377 None => return None,
10378 };
10379
10380 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10381 }
10382
10383 fn format_selections(
10384 &mut self,
10385 _: &FormatSelections,
10386 cx: &mut ViewContext<Self>,
10387 ) -> Option<Task<Result<()>>> {
10388 let project = match &self.project {
10389 Some(project) => project.clone(),
10390 None => return None,
10391 };
10392
10393 let selections = self
10394 .selections
10395 .all_adjusted(cx)
10396 .into_iter()
10397 .filter(|s| !s.is_empty())
10398 .collect_vec();
10399
10400 Some(self.perform_format(
10401 project,
10402 FormatTrigger::Manual,
10403 FormatTarget::Ranges(selections),
10404 cx,
10405 ))
10406 }
10407
10408 fn perform_format(
10409 &mut self,
10410 project: Model<Project>,
10411 trigger: FormatTrigger,
10412 target: FormatTarget,
10413 cx: &mut ViewContext<Self>,
10414 ) -> Task<Result<()>> {
10415 let buffer = self.buffer().clone();
10416 let mut buffers = buffer.read(cx).all_buffers();
10417 if trigger == FormatTrigger::Save {
10418 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10419 }
10420
10421 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10422 let format = project.update(cx, |project, cx| {
10423 project.format(buffers, true, trigger, target, cx)
10424 });
10425
10426 cx.spawn(|_, mut cx| async move {
10427 let transaction = futures::select_biased! {
10428 () = timeout => {
10429 log::warn!("timed out waiting for formatting");
10430 None
10431 }
10432 transaction = format.log_err().fuse() => transaction,
10433 };
10434
10435 buffer
10436 .update(&mut cx, |buffer, cx| {
10437 if let Some(transaction) = transaction {
10438 if !buffer.is_singleton() {
10439 buffer.push_transaction(&transaction.0, cx);
10440 }
10441 }
10442
10443 cx.notify();
10444 })
10445 .ok();
10446
10447 Ok(())
10448 })
10449 }
10450
10451 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10452 if let Some(project) = self.project.clone() {
10453 self.buffer.update(cx, |multi_buffer, cx| {
10454 project.update(cx, |project, cx| {
10455 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10456 });
10457 })
10458 }
10459 }
10460
10461 fn cancel_language_server_work(
10462 &mut self,
10463 _: &CancelLanguageServerWork,
10464 cx: &mut ViewContext<Self>,
10465 ) {
10466 if let Some(project) = self.project.clone() {
10467 self.buffer.update(cx, |multi_buffer, cx| {
10468 project.update(cx, |project, cx| {
10469 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10470 });
10471 })
10472 }
10473 }
10474
10475 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10476 cx.show_character_palette();
10477 }
10478
10479 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10480 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10481 let buffer = self.buffer.read(cx).snapshot(cx);
10482 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10483 let is_valid = buffer
10484 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10485 .any(|entry| {
10486 entry.diagnostic.is_primary
10487 && !entry.range.is_empty()
10488 && entry.range.start == primary_range_start
10489 && entry.diagnostic.message == active_diagnostics.primary_message
10490 });
10491
10492 if is_valid != active_diagnostics.is_valid {
10493 active_diagnostics.is_valid = is_valid;
10494 let mut new_styles = HashMap::default();
10495 for (block_id, diagnostic) in &active_diagnostics.blocks {
10496 new_styles.insert(
10497 *block_id,
10498 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10499 );
10500 }
10501 self.display_map.update(cx, |display_map, _cx| {
10502 display_map.replace_blocks(new_styles)
10503 });
10504 }
10505 }
10506 }
10507
10508 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10509 self.dismiss_diagnostics(cx);
10510 let snapshot = self.snapshot(cx);
10511 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10512 let buffer = self.buffer.read(cx).snapshot(cx);
10513
10514 let mut primary_range = None;
10515 let mut primary_message = None;
10516 let mut group_end = Point::zero();
10517 let diagnostic_group = buffer
10518 .diagnostic_group::<MultiBufferPoint>(group_id)
10519 .filter_map(|entry| {
10520 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10521 && (entry.range.start.row == entry.range.end.row
10522 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10523 {
10524 return None;
10525 }
10526 if entry.range.end > group_end {
10527 group_end = entry.range.end;
10528 }
10529 if entry.diagnostic.is_primary {
10530 primary_range = Some(entry.range.clone());
10531 primary_message = Some(entry.diagnostic.message.clone());
10532 }
10533 Some(entry)
10534 })
10535 .collect::<Vec<_>>();
10536 let primary_range = primary_range?;
10537 let primary_message = primary_message?;
10538 let primary_range =
10539 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10540
10541 let blocks = display_map
10542 .insert_blocks(
10543 diagnostic_group.iter().map(|entry| {
10544 let diagnostic = entry.diagnostic.clone();
10545 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10546 BlockProperties {
10547 style: BlockStyle::Fixed,
10548 placement: BlockPlacement::Below(
10549 buffer.anchor_after(entry.range.start),
10550 ),
10551 height: message_height,
10552 render: diagnostic_block_renderer(diagnostic, None, true, true),
10553 priority: 0,
10554 }
10555 }),
10556 cx,
10557 )
10558 .into_iter()
10559 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10560 .collect();
10561
10562 Some(ActiveDiagnosticGroup {
10563 primary_range,
10564 primary_message,
10565 group_id,
10566 blocks,
10567 is_valid: true,
10568 })
10569 });
10570 self.active_diagnostics.is_some()
10571 }
10572
10573 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10574 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10575 self.display_map.update(cx, |display_map, cx| {
10576 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10577 });
10578 cx.notify();
10579 }
10580 }
10581
10582 pub fn set_selections_from_remote(
10583 &mut self,
10584 selections: Vec<Selection<Anchor>>,
10585 pending_selection: Option<Selection<Anchor>>,
10586 cx: &mut ViewContext<Self>,
10587 ) {
10588 let old_cursor_position = self.selections.newest_anchor().head();
10589 self.selections.change_with(cx, |s| {
10590 s.select_anchors(selections);
10591 if let Some(pending_selection) = pending_selection {
10592 s.set_pending(pending_selection, SelectMode::Character);
10593 } else {
10594 s.clear_pending();
10595 }
10596 });
10597 self.selections_did_change(false, &old_cursor_position, true, cx);
10598 }
10599
10600 fn push_to_selection_history(&mut self) {
10601 self.selection_history.push(SelectionHistoryEntry {
10602 selections: self.selections.disjoint_anchors(),
10603 select_next_state: self.select_next_state.clone(),
10604 select_prev_state: self.select_prev_state.clone(),
10605 add_selections_state: self.add_selections_state.clone(),
10606 });
10607 }
10608
10609 pub fn transact(
10610 &mut self,
10611 cx: &mut ViewContext<Self>,
10612 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10613 ) -> Option<TransactionId> {
10614 self.start_transaction_at(Instant::now(), cx);
10615 update(self, cx);
10616 self.end_transaction_at(Instant::now(), cx)
10617 }
10618
10619 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10620 self.end_selection(cx);
10621 if let Some(tx_id) = self
10622 .buffer
10623 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10624 {
10625 self.selection_history
10626 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10627 cx.emit(EditorEvent::TransactionBegun {
10628 transaction_id: tx_id,
10629 })
10630 }
10631 }
10632
10633 fn end_transaction_at(
10634 &mut self,
10635 now: Instant,
10636 cx: &mut ViewContext<Self>,
10637 ) -> Option<TransactionId> {
10638 if let Some(transaction_id) = self
10639 .buffer
10640 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10641 {
10642 if let Some((_, end_selections)) =
10643 self.selection_history.transaction_mut(transaction_id)
10644 {
10645 *end_selections = Some(self.selections.disjoint_anchors());
10646 } else {
10647 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10648 }
10649
10650 cx.emit(EditorEvent::Edited { transaction_id });
10651 Some(transaction_id)
10652 } else {
10653 None
10654 }
10655 }
10656
10657 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10658 let selection = self.selections.newest::<Point>(cx);
10659
10660 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10661 let range = if selection.is_empty() {
10662 let point = selection.head().to_display_point(&display_map);
10663 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10664 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10665 .to_point(&display_map);
10666 start..end
10667 } else {
10668 selection.range()
10669 };
10670 if display_map.folds_in_range(range).next().is_some() {
10671 self.unfold_lines(&Default::default(), cx)
10672 } else {
10673 self.fold(&Default::default(), cx)
10674 }
10675 }
10676
10677 pub fn toggle_fold_recursive(
10678 &mut self,
10679 _: &actions::ToggleFoldRecursive,
10680 cx: &mut ViewContext<Self>,
10681 ) {
10682 let selection = self.selections.newest::<Point>(cx);
10683
10684 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10685 let range = if selection.is_empty() {
10686 let point = selection.head().to_display_point(&display_map);
10687 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10688 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10689 .to_point(&display_map);
10690 start..end
10691 } else {
10692 selection.range()
10693 };
10694 if display_map.folds_in_range(range).next().is_some() {
10695 self.unfold_recursive(&Default::default(), cx)
10696 } else {
10697 self.fold_recursive(&Default::default(), cx)
10698 }
10699 }
10700
10701 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10702 let mut fold_ranges = Vec::new();
10703 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10704 let selections = self.selections.all_adjusted(cx);
10705
10706 for selection in selections {
10707 let range = selection.range().sorted();
10708 let buffer_start_row = range.start.row;
10709
10710 if range.start.row != range.end.row {
10711 let mut found = false;
10712 let mut row = range.start.row;
10713 while row <= range.end.row {
10714 if let Some((foldable_range, fold_text)) =
10715 { display_map.foldable_range(MultiBufferRow(row)) }
10716 {
10717 found = true;
10718 row = foldable_range.end.row + 1;
10719 fold_ranges.push((foldable_range, fold_text));
10720 } else {
10721 row += 1
10722 }
10723 }
10724 if found {
10725 continue;
10726 }
10727 }
10728
10729 for row in (0..=range.start.row).rev() {
10730 if let Some((foldable_range, fold_text)) =
10731 display_map.foldable_range(MultiBufferRow(row))
10732 {
10733 if foldable_range.end.row >= buffer_start_row {
10734 fold_ranges.push((foldable_range, fold_text));
10735 if row <= range.start.row {
10736 break;
10737 }
10738 }
10739 }
10740 }
10741 }
10742
10743 self.fold_ranges(fold_ranges, true, cx);
10744 }
10745
10746 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10747 let fold_at_level = fold_at.level;
10748 let snapshot = self.buffer.read(cx).snapshot(cx);
10749 let mut fold_ranges = Vec::new();
10750 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10751
10752 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10753 while start_row < end_row {
10754 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10755 Some(foldable_range) => {
10756 let nested_start_row = foldable_range.0.start.row + 1;
10757 let nested_end_row = foldable_range.0.end.row;
10758
10759 if current_level == fold_at_level {
10760 fold_ranges.push(foldable_range);
10761 }
10762
10763 if current_level <= fold_at_level {
10764 stack.push((nested_start_row, nested_end_row, current_level + 1));
10765 }
10766
10767 start_row = nested_end_row + 1;
10768 }
10769 None => start_row += 1,
10770 }
10771 }
10772 }
10773
10774 self.fold_ranges(fold_ranges, true, cx);
10775 }
10776
10777 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10778 let mut fold_ranges = Vec::new();
10779 let snapshot = self.buffer.read(cx).snapshot(cx);
10780
10781 for row in 0..snapshot.max_buffer_row().0 {
10782 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10783 fold_ranges.push(foldable_range);
10784 }
10785 }
10786
10787 self.fold_ranges(fold_ranges, true, cx);
10788 }
10789
10790 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10791 let mut fold_ranges = Vec::new();
10792 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10793 let selections = self.selections.all_adjusted(cx);
10794
10795 for selection in selections {
10796 let range = selection.range().sorted();
10797 let buffer_start_row = range.start.row;
10798
10799 if range.start.row != range.end.row {
10800 let mut found = false;
10801 for row in range.start.row..=range.end.row {
10802 if let Some((foldable_range, fold_text)) =
10803 { display_map.foldable_range(MultiBufferRow(row)) }
10804 {
10805 found = true;
10806 fold_ranges.push((foldable_range, fold_text));
10807 }
10808 }
10809 if found {
10810 continue;
10811 }
10812 }
10813
10814 for row in (0..=range.start.row).rev() {
10815 if let Some((foldable_range, fold_text)) =
10816 display_map.foldable_range(MultiBufferRow(row))
10817 {
10818 if foldable_range.end.row >= buffer_start_row {
10819 fold_ranges.push((foldable_range, fold_text));
10820 } else {
10821 break;
10822 }
10823 }
10824 }
10825 }
10826
10827 self.fold_ranges(fold_ranges, true, cx);
10828 }
10829
10830 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10831 let buffer_row = fold_at.buffer_row;
10832 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10833
10834 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10835 let autoscroll = self
10836 .selections
10837 .all::<Point>(cx)
10838 .iter()
10839 .any(|selection| fold_range.overlaps(&selection.range()));
10840
10841 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10842 }
10843 }
10844
10845 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10846 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10847 let buffer = &display_map.buffer_snapshot;
10848 let selections = self.selections.all::<Point>(cx);
10849 let ranges = selections
10850 .iter()
10851 .map(|s| {
10852 let range = s.display_range(&display_map).sorted();
10853 let mut start = range.start.to_point(&display_map);
10854 let mut end = range.end.to_point(&display_map);
10855 start.column = 0;
10856 end.column = buffer.line_len(MultiBufferRow(end.row));
10857 start..end
10858 })
10859 .collect::<Vec<_>>();
10860
10861 self.unfold_ranges(ranges, true, true, cx);
10862 }
10863
10864 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10865 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10866 let selections = self.selections.all::<Point>(cx);
10867 let ranges = selections
10868 .iter()
10869 .map(|s| {
10870 let mut range = s.display_range(&display_map).sorted();
10871 *range.start.column_mut() = 0;
10872 *range.end.column_mut() = display_map.line_len(range.end.row());
10873 let start = range.start.to_point(&display_map);
10874 let end = range.end.to_point(&display_map);
10875 start..end
10876 })
10877 .collect::<Vec<_>>();
10878
10879 self.unfold_ranges(ranges, true, true, cx);
10880 }
10881
10882 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10883 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10884
10885 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10886 ..Point::new(
10887 unfold_at.buffer_row.0,
10888 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10889 );
10890
10891 let autoscroll = self
10892 .selections
10893 .all::<Point>(cx)
10894 .iter()
10895 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10896
10897 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10898 }
10899
10900 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10901 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10902 self.unfold_ranges(
10903 [Point::zero()..display_map.max_point().to_point(&display_map)],
10904 true,
10905 true,
10906 cx,
10907 );
10908 }
10909
10910 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10911 let selections = self.selections.all::<Point>(cx);
10912 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10913 let line_mode = self.selections.line_mode;
10914 let ranges = selections.into_iter().map(|s| {
10915 if line_mode {
10916 let start = Point::new(s.start.row, 0);
10917 let end = Point::new(
10918 s.end.row,
10919 display_map
10920 .buffer_snapshot
10921 .line_len(MultiBufferRow(s.end.row)),
10922 );
10923 (start..end, display_map.fold_placeholder.clone())
10924 } else {
10925 (s.start..s.end, display_map.fold_placeholder.clone())
10926 }
10927 });
10928 self.fold_ranges(ranges, true, cx);
10929 }
10930
10931 pub fn fold_ranges<T: ToOffset + Clone>(
10932 &mut self,
10933 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10934 auto_scroll: bool,
10935 cx: &mut ViewContext<Self>,
10936 ) {
10937 let mut fold_ranges = Vec::new();
10938 let mut buffers_affected = HashMap::default();
10939 let multi_buffer = self.buffer().read(cx);
10940 for (fold_range, fold_text) in ranges {
10941 if let Some((_, buffer, _)) =
10942 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10943 {
10944 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10945 };
10946 fold_ranges.push((fold_range, fold_text));
10947 }
10948
10949 let mut ranges = fold_ranges.into_iter().peekable();
10950 if ranges.peek().is_some() {
10951 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10952
10953 if auto_scroll {
10954 self.request_autoscroll(Autoscroll::fit(), cx);
10955 }
10956
10957 for buffer in buffers_affected.into_values() {
10958 self.sync_expanded_diff_hunks(buffer, cx);
10959 }
10960
10961 cx.notify();
10962
10963 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10964 // Clear diagnostics block when folding a range that contains it.
10965 let snapshot = self.snapshot(cx);
10966 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10967 drop(snapshot);
10968 self.active_diagnostics = Some(active_diagnostics);
10969 self.dismiss_diagnostics(cx);
10970 } else {
10971 self.active_diagnostics = Some(active_diagnostics);
10972 }
10973 }
10974
10975 self.scrollbar_marker_state.dirty = true;
10976 }
10977 }
10978
10979 pub fn unfold_ranges<T: ToOffset + Clone>(
10980 &mut self,
10981 ranges: impl IntoIterator<Item = Range<T>>,
10982 inclusive: bool,
10983 auto_scroll: bool,
10984 cx: &mut ViewContext<Self>,
10985 ) {
10986 let mut unfold_ranges = Vec::new();
10987 let mut buffers_affected = HashMap::default();
10988 let multi_buffer = self.buffer().read(cx);
10989 for range in ranges {
10990 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10991 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10992 };
10993 unfold_ranges.push(range);
10994 }
10995
10996 let mut ranges = unfold_ranges.into_iter().peekable();
10997 if ranges.peek().is_some() {
10998 self.display_map
10999 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
11000 if auto_scroll {
11001 self.request_autoscroll(Autoscroll::fit(), cx);
11002 }
11003
11004 for buffer in buffers_affected.into_values() {
11005 self.sync_expanded_diff_hunks(buffer, cx);
11006 }
11007
11008 cx.notify();
11009 self.scrollbar_marker_state.dirty = true;
11010 self.active_indent_guides_state.dirty = true;
11011 }
11012 }
11013
11014 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11015 self.display_map.read(cx).fold_placeholder.clone()
11016 }
11017
11018 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11019 if hovered != self.gutter_hovered {
11020 self.gutter_hovered = hovered;
11021 cx.notify();
11022 }
11023 }
11024
11025 pub fn insert_blocks(
11026 &mut self,
11027 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11028 autoscroll: Option<Autoscroll>,
11029 cx: &mut ViewContext<Self>,
11030 ) -> Vec<CustomBlockId> {
11031 let blocks = self
11032 .display_map
11033 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11034 if let Some(autoscroll) = autoscroll {
11035 self.request_autoscroll(autoscroll, cx);
11036 }
11037 cx.notify();
11038 blocks
11039 }
11040
11041 pub fn resize_blocks(
11042 &mut self,
11043 heights: HashMap<CustomBlockId, u32>,
11044 autoscroll: Option<Autoscroll>,
11045 cx: &mut ViewContext<Self>,
11046 ) {
11047 self.display_map
11048 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11049 if let Some(autoscroll) = autoscroll {
11050 self.request_autoscroll(autoscroll, cx);
11051 }
11052 cx.notify();
11053 }
11054
11055 pub fn replace_blocks(
11056 &mut self,
11057 renderers: HashMap<CustomBlockId, RenderBlock>,
11058 autoscroll: Option<Autoscroll>,
11059 cx: &mut ViewContext<Self>,
11060 ) {
11061 self.display_map
11062 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11063 if let Some(autoscroll) = autoscroll {
11064 self.request_autoscroll(autoscroll, cx);
11065 }
11066 cx.notify();
11067 }
11068
11069 pub fn remove_blocks(
11070 &mut self,
11071 block_ids: HashSet<CustomBlockId>,
11072 autoscroll: Option<Autoscroll>,
11073 cx: &mut ViewContext<Self>,
11074 ) {
11075 self.display_map.update(cx, |display_map, cx| {
11076 display_map.remove_blocks(block_ids, cx)
11077 });
11078 if let Some(autoscroll) = autoscroll {
11079 self.request_autoscroll(autoscroll, cx);
11080 }
11081 cx.notify();
11082 }
11083
11084 pub fn row_for_block(
11085 &self,
11086 block_id: CustomBlockId,
11087 cx: &mut ViewContext<Self>,
11088 ) -> Option<DisplayRow> {
11089 self.display_map
11090 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11091 }
11092
11093 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11094 self.focused_block = Some(focused_block);
11095 }
11096
11097 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11098 self.focused_block.take()
11099 }
11100
11101 pub fn insert_creases(
11102 &mut self,
11103 creases: impl IntoIterator<Item = Crease>,
11104 cx: &mut ViewContext<Self>,
11105 ) -> Vec<CreaseId> {
11106 self.display_map
11107 .update(cx, |map, cx| map.insert_creases(creases, cx))
11108 }
11109
11110 pub fn remove_creases(
11111 &mut self,
11112 ids: impl IntoIterator<Item = CreaseId>,
11113 cx: &mut ViewContext<Self>,
11114 ) {
11115 self.display_map
11116 .update(cx, |map, cx| map.remove_creases(ids, cx));
11117 }
11118
11119 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11120 self.display_map
11121 .update(cx, |map, cx| map.snapshot(cx))
11122 .longest_row()
11123 }
11124
11125 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11126 self.display_map
11127 .update(cx, |map, cx| map.snapshot(cx))
11128 .max_point()
11129 }
11130
11131 pub fn text(&self, cx: &AppContext) -> String {
11132 self.buffer.read(cx).read(cx).text()
11133 }
11134
11135 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11136 let text = self.text(cx);
11137 let text = text.trim();
11138
11139 if text.is_empty() {
11140 return None;
11141 }
11142
11143 Some(text.to_string())
11144 }
11145
11146 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11147 self.transact(cx, |this, cx| {
11148 this.buffer
11149 .read(cx)
11150 .as_singleton()
11151 .expect("you can only call set_text on editors for singleton buffers")
11152 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11153 });
11154 }
11155
11156 pub fn display_text(&self, cx: &mut AppContext) -> String {
11157 self.display_map
11158 .update(cx, |map, cx| map.snapshot(cx))
11159 .text()
11160 }
11161
11162 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11163 let mut wrap_guides = smallvec::smallvec![];
11164
11165 if self.show_wrap_guides == Some(false) {
11166 return wrap_guides;
11167 }
11168
11169 let settings = self.buffer.read(cx).settings_at(0, cx);
11170 if settings.show_wrap_guides {
11171 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11172 wrap_guides.push((soft_wrap as usize, true));
11173 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11174 wrap_guides.push((soft_wrap as usize, true));
11175 }
11176 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11177 }
11178
11179 wrap_guides
11180 }
11181
11182 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11183 let settings = self.buffer.read(cx).settings_at(0, cx);
11184 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11185 match mode {
11186 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11187 SoftWrap::None
11188 }
11189 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11190 language_settings::SoftWrap::PreferredLineLength => {
11191 SoftWrap::Column(settings.preferred_line_length)
11192 }
11193 language_settings::SoftWrap::Bounded => {
11194 SoftWrap::Bounded(settings.preferred_line_length)
11195 }
11196 }
11197 }
11198
11199 pub fn set_soft_wrap_mode(
11200 &mut self,
11201 mode: language_settings::SoftWrap,
11202 cx: &mut ViewContext<Self>,
11203 ) {
11204 self.soft_wrap_mode_override = Some(mode);
11205 cx.notify();
11206 }
11207
11208 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11209 self.text_style_refinement = Some(style);
11210 }
11211
11212 /// called by the Element so we know what style we were most recently rendered with.
11213 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11214 let rem_size = cx.rem_size();
11215 self.display_map.update(cx, |map, cx| {
11216 map.set_font(
11217 style.text.font(),
11218 style.text.font_size.to_pixels(rem_size),
11219 cx,
11220 )
11221 });
11222 self.style = Some(style);
11223 }
11224
11225 pub fn style(&self) -> Option<&EditorStyle> {
11226 self.style.as_ref()
11227 }
11228
11229 // Called by the element. This method is not designed to be called outside of the editor
11230 // element's layout code because it does not notify when rewrapping is computed synchronously.
11231 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11232 self.display_map
11233 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11234 }
11235
11236 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11237 if self.soft_wrap_mode_override.is_some() {
11238 self.soft_wrap_mode_override.take();
11239 } else {
11240 let soft_wrap = match self.soft_wrap_mode(cx) {
11241 SoftWrap::GitDiff => return,
11242 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11243 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11244 language_settings::SoftWrap::None
11245 }
11246 };
11247 self.soft_wrap_mode_override = Some(soft_wrap);
11248 }
11249 cx.notify();
11250 }
11251
11252 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11253 let Some(workspace) = self.workspace() else {
11254 return;
11255 };
11256 let fs = workspace.read(cx).app_state().fs.clone();
11257 let current_show = TabBarSettings::get_global(cx).show;
11258 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11259 setting.show = Some(!current_show);
11260 });
11261 }
11262
11263 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11264 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11265 self.buffer
11266 .read(cx)
11267 .settings_at(0, cx)
11268 .indent_guides
11269 .enabled
11270 });
11271 self.show_indent_guides = Some(!currently_enabled);
11272 cx.notify();
11273 }
11274
11275 fn should_show_indent_guides(&self) -> Option<bool> {
11276 self.show_indent_guides
11277 }
11278
11279 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11280 let mut editor_settings = EditorSettings::get_global(cx).clone();
11281 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11282 EditorSettings::override_global(editor_settings, cx);
11283 }
11284
11285 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11286 self.use_relative_line_numbers
11287 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11288 }
11289
11290 pub fn toggle_relative_line_numbers(
11291 &mut self,
11292 _: &ToggleRelativeLineNumbers,
11293 cx: &mut ViewContext<Self>,
11294 ) {
11295 let is_relative = self.should_use_relative_line_numbers(cx);
11296 self.set_relative_line_number(Some(!is_relative), cx)
11297 }
11298
11299 pub fn set_relative_line_number(
11300 &mut self,
11301 is_relative: Option<bool>,
11302 cx: &mut ViewContext<Self>,
11303 ) {
11304 self.use_relative_line_numbers = is_relative;
11305 cx.notify();
11306 }
11307
11308 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11309 self.show_gutter = show_gutter;
11310 cx.notify();
11311 }
11312
11313 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11314 self.show_line_numbers = Some(show_line_numbers);
11315 cx.notify();
11316 }
11317
11318 pub fn set_show_git_diff_gutter(
11319 &mut self,
11320 show_git_diff_gutter: bool,
11321 cx: &mut ViewContext<Self>,
11322 ) {
11323 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11324 cx.notify();
11325 }
11326
11327 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11328 self.show_code_actions = Some(show_code_actions);
11329 cx.notify();
11330 }
11331
11332 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11333 self.show_runnables = Some(show_runnables);
11334 cx.notify();
11335 }
11336
11337 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11338 if self.display_map.read(cx).masked != masked {
11339 self.display_map.update(cx, |map, _| map.masked = masked);
11340 }
11341 cx.notify()
11342 }
11343
11344 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11345 self.show_wrap_guides = Some(show_wrap_guides);
11346 cx.notify();
11347 }
11348
11349 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11350 self.show_indent_guides = Some(show_indent_guides);
11351 cx.notify();
11352 }
11353
11354 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11355 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11356 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11357 if let Some(dir) = file.abs_path(cx).parent() {
11358 return Some(dir.to_owned());
11359 }
11360 }
11361
11362 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11363 return Some(project_path.path.to_path_buf());
11364 }
11365 }
11366
11367 None
11368 }
11369
11370 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11371 self.active_excerpt(cx)?
11372 .1
11373 .read(cx)
11374 .file()
11375 .and_then(|f| f.as_local())
11376 }
11377
11378 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11379 if let Some(target) = self.target_file(cx) {
11380 cx.reveal_path(&target.abs_path(cx));
11381 }
11382 }
11383
11384 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11385 if let Some(file) = self.target_file(cx) {
11386 if let Some(path) = file.abs_path(cx).to_str() {
11387 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11388 }
11389 }
11390 }
11391
11392 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11393 if let Some(file) = self.target_file(cx) {
11394 if let Some(path) = file.path().to_str() {
11395 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11396 }
11397 }
11398 }
11399
11400 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11401 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11402
11403 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11404 self.start_git_blame(true, cx);
11405 }
11406
11407 cx.notify();
11408 }
11409
11410 pub fn toggle_git_blame_inline(
11411 &mut self,
11412 _: &ToggleGitBlameInline,
11413 cx: &mut ViewContext<Self>,
11414 ) {
11415 self.toggle_git_blame_inline_internal(true, cx);
11416 cx.notify();
11417 }
11418
11419 pub fn git_blame_inline_enabled(&self) -> bool {
11420 self.git_blame_inline_enabled
11421 }
11422
11423 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11424 self.show_selection_menu = self
11425 .show_selection_menu
11426 .map(|show_selections_menu| !show_selections_menu)
11427 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11428
11429 cx.notify();
11430 }
11431
11432 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11433 self.show_selection_menu
11434 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11435 }
11436
11437 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11438 if let Some(project) = self.project.as_ref() {
11439 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11440 return;
11441 };
11442
11443 if buffer.read(cx).file().is_none() {
11444 return;
11445 }
11446
11447 let focused = self.focus_handle(cx).contains_focused(cx);
11448
11449 let project = project.clone();
11450 let blame =
11451 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11452 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11453 self.blame = Some(blame);
11454 }
11455 }
11456
11457 fn toggle_git_blame_inline_internal(
11458 &mut self,
11459 user_triggered: bool,
11460 cx: &mut ViewContext<Self>,
11461 ) {
11462 if self.git_blame_inline_enabled {
11463 self.git_blame_inline_enabled = false;
11464 self.show_git_blame_inline = false;
11465 self.show_git_blame_inline_delay_task.take();
11466 } else {
11467 self.git_blame_inline_enabled = true;
11468 self.start_git_blame_inline(user_triggered, cx);
11469 }
11470
11471 cx.notify();
11472 }
11473
11474 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11475 self.start_git_blame(user_triggered, cx);
11476
11477 if ProjectSettings::get_global(cx)
11478 .git
11479 .inline_blame_delay()
11480 .is_some()
11481 {
11482 self.start_inline_blame_timer(cx);
11483 } else {
11484 self.show_git_blame_inline = true
11485 }
11486 }
11487
11488 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11489 self.blame.as_ref()
11490 }
11491
11492 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11493 self.show_git_blame_gutter && self.has_blame_entries(cx)
11494 }
11495
11496 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11497 self.show_git_blame_inline
11498 && self.focus_handle.is_focused(cx)
11499 && !self.newest_selection_head_on_empty_line(cx)
11500 && self.has_blame_entries(cx)
11501 }
11502
11503 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11504 self.blame()
11505 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11506 }
11507
11508 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11509 let cursor_anchor = self.selections.newest_anchor().head();
11510
11511 let snapshot = self.buffer.read(cx).snapshot(cx);
11512 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11513
11514 snapshot.line_len(buffer_row) == 0
11515 }
11516
11517 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11518 let buffer_and_selection = maybe!({
11519 let selection = self.selections.newest::<Point>(cx);
11520 let selection_range = selection.range();
11521
11522 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11523 (buffer, selection_range.start.row..selection_range.end.row)
11524 } else {
11525 let buffer_ranges = self
11526 .buffer()
11527 .read(cx)
11528 .range_to_buffer_ranges(selection_range, cx);
11529
11530 let (buffer, range, _) = if selection.reversed {
11531 buffer_ranges.first()
11532 } else {
11533 buffer_ranges.last()
11534 }?;
11535
11536 let snapshot = buffer.read(cx).snapshot();
11537 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11538 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11539 (buffer.clone(), selection)
11540 };
11541
11542 Some((buffer, selection))
11543 });
11544
11545 let Some((buffer, selection)) = buffer_and_selection else {
11546 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11547 };
11548
11549 let Some(project) = self.project.as_ref() else {
11550 return Task::ready(Err(anyhow!("editor does not have project")));
11551 };
11552
11553 project.update(cx, |project, cx| {
11554 project.get_permalink_to_line(&buffer, selection, cx)
11555 })
11556 }
11557
11558 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11559 let permalink_task = self.get_permalink_to_line(cx);
11560 let workspace = self.workspace();
11561
11562 cx.spawn(|_, mut cx| async move {
11563 match permalink_task.await {
11564 Ok(permalink) => {
11565 cx.update(|cx| {
11566 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11567 })
11568 .ok();
11569 }
11570 Err(err) => {
11571 let message = format!("Failed to copy permalink: {err}");
11572
11573 Err::<(), anyhow::Error>(err).log_err();
11574
11575 if let Some(workspace) = workspace {
11576 workspace
11577 .update(&mut cx, |workspace, cx| {
11578 struct CopyPermalinkToLine;
11579
11580 workspace.show_toast(
11581 Toast::new(
11582 NotificationId::unique::<CopyPermalinkToLine>(),
11583 message,
11584 ),
11585 cx,
11586 )
11587 })
11588 .ok();
11589 }
11590 }
11591 }
11592 })
11593 .detach();
11594 }
11595
11596 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11597 if let Some(file) = self.target_file(cx) {
11598 if let Some(path) = file.path().to_str() {
11599 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11600 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11601 }
11602 }
11603 }
11604
11605 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11606 let permalink_task = self.get_permalink_to_line(cx);
11607 let workspace = self.workspace();
11608
11609 cx.spawn(|_, mut cx| async move {
11610 match permalink_task.await {
11611 Ok(permalink) => {
11612 cx.update(|cx| {
11613 cx.open_url(permalink.as_ref());
11614 })
11615 .ok();
11616 }
11617 Err(err) => {
11618 let message = format!("Failed to open permalink: {err}");
11619
11620 Err::<(), anyhow::Error>(err).log_err();
11621
11622 if let Some(workspace) = workspace {
11623 workspace
11624 .update(&mut cx, |workspace, cx| {
11625 struct OpenPermalinkToLine;
11626
11627 workspace.show_toast(
11628 Toast::new(
11629 NotificationId::unique::<OpenPermalinkToLine>(),
11630 message,
11631 ),
11632 cx,
11633 )
11634 })
11635 .ok();
11636 }
11637 }
11638 }
11639 })
11640 .detach();
11641 }
11642
11643 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11644 /// last highlight added will be used.
11645 ///
11646 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11647 pub fn highlight_rows<T: 'static>(
11648 &mut self,
11649 range: Range<Anchor>,
11650 color: Hsla,
11651 should_autoscroll: bool,
11652 cx: &mut ViewContext<Self>,
11653 ) {
11654 let snapshot = self.buffer().read(cx).snapshot(cx);
11655 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11656 let ix = row_highlights.binary_search_by(|highlight| {
11657 Ordering::Equal
11658 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11659 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11660 });
11661
11662 if let Err(mut ix) = ix {
11663 let index = post_inc(&mut self.highlight_order);
11664
11665 // If this range intersects with the preceding highlight, then merge it with
11666 // the preceding highlight. Otherwise insert a new highlight.
11667 let mut merged = false;
11668 if ix > 0 {
11669 let prev_highlight = &mut row_highlights[ix - 1];
11670 if prev_highlight
11671 .range
11672 .end
11673 .cmp(&range.start, &snapshot)
11674 .is_ge()
11675 {
11676 ix -= 1;
11677 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11678 prev_highlight.range.end = range.end;
11679 }
11680 merged = true;
11681 prev_highlight.index = index;
11682 prev_highlight.color = color;
11683 prev_highlight.should_autoscroll = should_autoscroll;
11684 }
11685 }
11686
11687 if !merged {
11688 row_highlights.insert(
11689 ix,
11690 RowHighlight {
11691 range: range.clone(),
11692 index,
11693 color,
11694 should_autoscroll,
11695 },
11696 );
11697 }
11698
11699 // If any of the following highlights intersect with this one, merge them.
11700 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11701 let highlight = &row_highlights[ix];
11702 if next_highlight
11703 .range
11704 .start
11705 .cmp(&highlight.range.end, &snapshot)
11706 .is_le()
11707 {
11708 if next_highlight
11709 .range
11710 .end
11711 .cmp(&highlight.range.end, &snapshot)
11712 .is_gt()
11713 {
11714 row_highlights[ix].range.end = next_highlight.range.end;
11715 }
11716 row_highlights.remove(ix + 1);
11717 } else {
11718 break;
11719 }
11720 }
11721 }
11722 }
11723
11724 /// Remove any highlighted row ranges of the given type that intersect the
11725 /// given ranges.
11726 pub fn remove_highlighted_rows<T: 'static>(
11727 &mut self,
11728 ranges_to_remove: Vec<Range<Anchor>>,
11729 cx: &mut ViewContext<Self>,
11730 ) {
11731 let snapshot = self.buffer().read(cx).snapshot(cx);
11732 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11733 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11734 row_highlights.retain(|highlight| {
11735 while let Some(range_to_remove) = ranges_to_remove.peek() {
11736 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11737 Ordering::Less | Ordering::Equal => {
11738 ranges_to_remove.next();
11739 }
11740 Ordering::Greater => {
11741 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11742 Ordering::Less | Ordering::Equal => {
11743 return false;
11744 }
11745 Ordering::Greater => break,
11746 }
11747 }
11748 }
11749 }
11750
11751 true
11752 })
11753 }
11754
11755 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11756 pub fn clear_row_highlights<T: 'static>(&mut self) {
11757 self.highlighted_rows.remove(&TypeId::of::<T>());
11758 }
11759
11760 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11761 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11762 self.highlighted_rows
11763 .get(&TypeId::of::<T>())
11764 .map_or(&[] as &[_], |vec| vec.as_slice())
11765 .iter()
11766 .map(|highlight| (highlight.range.clone(), highlight.color))
11767 }
11768
11769 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11770 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11771 /// Allows to ignore certain kinds of highlights.
11772 pub fn highlighted_display_rows(
11773 &mut self,
11774 cx: &mut WindowContext,
11775 ) -> BTreeMap<DisplayRow, Hsla> {
11776 let snapshot = self.snapshot(cx);
11777 let mut used_highlight_orders = HashMap::default();
11778 self.highlighted_rows
11779 .iter()
11780 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11781 .fold(
11782 BTreeMap::<DisplayRow, Hsla>::new(),
11783 |mut unique_rows, highlight| {
11784 let start = highlight.range.start.to_display_point(&snapshot);
11785 let end = highlight.range.end.to_display_point(&snapshot);
11786 let start_row = start.row().0;
11787 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11788 && end.column() == 0
11789 {
11790 end.row().0.saturating_sub(1)
11791 } else {
11792 end.row().0
11793 };
11794 for row in start_row..=end_row {
11795 let used_index =
11796 used_highlight_orders.entry(row).or_insert(highlight.index);
11797 if highlight.index >= *used_index {
11798 *used_index = highlight.index;
11799 unique_rows.insert(DisplayRow(row), highlight.color);
11800 }
11801 }
11802 unique_rows
11803 },
11804 )
11805 }
11806
11807 pub fn highlighted_display_row_for_autoscroll(
11808 &self,
11809 snapshot: &DisplaySnapshot,
11810 ) -> Option<DisplayRow> {
11811 self.highlighted_rows
11812 .values()
11813 .flat_map(|highlighted_rows| highlighted_rows.iter())
11814 .filter_map(|highlight| {
11815 if highlight.should_autoscroll {
11816 Some(highlight.range.start.to_display_point(snapshot).row())
11817 } else {
11818 None
11819 }
11820 })
11821 .min()
11822 }
11823
11824 pub fn set_search_within_ranges(
11825 &mut self,
11826 ranges: &[Range<Anchor>],
11827 cx: &mut ViewContext<Self>,
11828 ) {
11829 self.highlight_background::<SearchWithinRange>(
11830 ranges,
11831 |colors| colors.editor_document_highlight_read_background,
11832 cx,
11833 )
11834 }
11835
11836 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11837 self.breadcrumb_header = Some(new_header);
11838 }
11839
11840 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11841 self.clear_background_highlights::<SearchWithinRange>(cx);
11842 }
11843
11844 pub fn highlight_background<T: 'static>(
11845 &mut self,
11846 ranges: &[Range<Anchor>],
11847 color_fetcher: fn(&ThemeColors) -> Hsla,
11848 cx: &mut ViewContext<Self>,
11849 ) {
11850 self.background_highlights
11851 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11852 self.scrollbar_marker_state.dirty = true;
11853 cx.notify();
11854 }
11855
11856 pub fn clear_background_highlights<T: 'static>(
11857 &mut self,
11858 cx: &mut ViewContext<Self>,
11859 ) -> Option<BackgroundHighlight> {
11860 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11861 if !text_highlights.1.is_empty() {
11862 self.scrollbar_marker_state.dirty = true;
11863 cx.notify();
11864 }
11865 Some(text_highlights)
11866 }
11867
11868 pub fn highlight_gutter<T: 'static>(
11869 &mut self,
11870 ranges: &[Range<Anchor>],
11871 color_fetcher: fn(&AppContext) -> Hsla,
11872 cx: &mut ViewContext<Self>,
11873 ) {
11874 self.gutter_highlights
11875 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11876 cx.notify();
11877 }
11878
11879 pub fn clear_gutter_highlights<T: 'static>(
11880 &mut self,
11881 cx: &mut ViewContext<Self>,
11882 ) -> Option<GutterHighlight> {
11883 cx.notify();
11884 self.gutter_highlights.remove(&TypeId::of::<T>())
11885 }
11886
11887 #[cfg(feature = "test-support")]
11888 pub fn all_text_background_highlights(
11889 &mut self,
11890 cx: &mut ViewContext<Self>,
11891 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11892 let snapshot = self.snapshot(cx);
11893 let buffer = &snapshot.buffer_snapshot;
11894 let start = buffer.anchor_before(0);
11895 let end = buffer.anchor_after(buffer.len());
11896 let theme = cx.theme().colors();
11897 self.background_highlights_in_range(start..end, &snapshot, theme)
11898 }
11899
11900 #[cfg(feature = "test-support")]
11901 pub fn search_background_highlights(
11902 &mut self,
11903 cx: &mut ViewContext<Self>,
11904 ) -> Vec<Range<Point>> {
11905 let snapshot = self.buffer().read(cx).snapshot(cx);
11906
11907 let highlights = self
11908 .background_highlights
11909 .get(&TypeId::of::<items::BufferSearchHighlights>());
11910
11911 if let Some((_color, ranges)) = highlights {
11912 ranges
11913 .iter()
11914 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11915 .collect_vec()
11916 } else {
11917 vec![]
11918 }
11919 }
11920
11921 fn document_highlights_for_position<'a>(
11922 &'a self,
11923 position: Anchor,
11924 buffer: &'a MultiBufferSnapshot,
11925 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11926 let read_highlights = self
11927 .background_highlights
11928 .get(&TypeId::of::<DocumentHighlightRead>())
11929 .map(|h| &h.1);
11930 let write_highlights = self
11931 .background_highlights
11932 .get(&TypeId::of::<DocumentHighlightWrite>())
11933 .map(|h| &h.1);
11934 let left_position = position.bias_left(buffer);
11935 let right_position = position.bias_right(buffer);
11936 read_highlights
11937 .into_iter()
11938 .chain(write_highlights)
11939 .flat_map(move |ranges| {
11940 let start_ix = match ranges.binary_search_by(|probe| {
11941 let cmp = probe.end.cmp(&left_position, buffer);
11942 if cmp.is_ge() {
11943 Ordering::Greater
11944 } else {
11945 Ordering::Less
11946 }
11947 }) {
11948 Ok(i) | Err(i) => i,
11949 };
11950
11951 ranges[start_ix..]
11952 .iter()
11953 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11954 })
11955 }
11956
11957 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11958 self.background_highlights
11959 .get(&TypeId::of::<T>())
11960 .map_or(false, |(_, highlights)| !highlights.is_empty())
11961 }
11962
11963 pub fn background_highlights_in_range(
11964 &self,
11965 search_range: Range<Anchor>,
11966 display_snapshot: &DisplaySnapshot,
11967 theme: &ThemeColors,
11968 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11969 let mut results = Vec::new();
11970 for (color_fetcher, ranges) in self.background_highlights.values() {
11971 let color = color_fetcher(theme);
11972 let start_ix = match ranges.binary_search_by(|probe| {
11973 let cmp = probe
11974 .end
11975 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11976 if cmp.is_gt() {
11977 Ordering::Greater
11978 } else {
11979 Ordering::Less
11980 }
11981 }) {
11982 Ok(i) | Err(i) => i,
11983 };
11984 for range in &ranges[start_ix..] {
11985 if range
11986 .start
11987 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11988 .is_ge()
11989 {
11990 break;
11991 }
11992
11993 let start = range.start.to_display_point(display_snapshot);
11994 let end = range.end.to_display_point(display_snapshot);
11995 results.push((start..end, color))
11996 }
11997 }
11998 results
11999 }
12000
12001 pub fn background_highlight_row_ranges<T: 'static>(
12002 &self,
12003 search_range: Range<Anchor>,
12004 display_snapshot: &DisplaySnapshot,
12005 count: usize,
12006 ) -> Vec<RangeInclusive<DisplayPoint>> {
12007 let mut results = Vec::new();
12008 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12009 return vec![];
12010 };
12011
12012 let start_ix = match ranges.binary_search_by(|probe| {
12013 let cmp = probe
12014 .end
12015 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12016 if cmp.is_gt() {
12017 Ordering::Greater
12018 } else {
12019 Ordering::Less
12020 }
12021 }) {
12022 Ok(i) | Err(i) => i,
12023 };
12024 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12025 if let (Some(start_display), Some(end_display)) = (start, end) {
12026 results.push(
12027 start_display.to_display_point(display_snapshot)
12028 ..=end_display.to_display_point(display_snapshot),
12029 );
12030 }
12031 };
12032 let mut start_row: Option<Point> = None;
12033 let mut end_row: Option<Point> = None;
12034 if ranges.len() > count {
12035 return Vec::new();
12036 }
12037 for range in &ranges[start_ix..] {
12038 if range
12039 .start
12040 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12041 .is_ge()
12042 {
12043 break;
12044 }
12045 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12046 if let Some(current_row) = &end_row {
12047 if end.row == current_row.row {
12048 continue;
12049 }
12050 }
12051 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12052 if start_row.is_none() {
12053 assert_eq!(end_row, None);
12054 start_row = Some(start);
12055 end_row = Some(end);
12056 continue;
12057 }
12058 if let Some(current_end) = end_row.as_mut() {
12059 if start.row > current_end.row + 1 {
12060 push_region(start_row, end_row);
12061 start_row = Some(start);
12062 end_row = Some(end);
12063 } else {
12064 // Merge two hunks.
12065 *current_end = end;
12066 }
12067 } else {
12068 unreachable!();
12069 }
12070 }
12071 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12072 push_region(start_row, end_row);
12073 results
12074 }
12075
12076 pub fn gutter_highlights_in_range(
12077 &self,
12078 search_range: Range<Anchor>,
12079 display_snapshot: &DisplaySnapshot,
12080 cx: &AppContext,
12081 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12082 let mut results = Vec::new();
12083 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12084 let color = color_fetcher(cx);
12085 let start_ix = match ranges.binary_search_by(|probe| {
12086 let cmp = probe
12087 .end
12088 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12089 if cmp.is_gt() {
12090 Ordering::Greater
12091 } else {
12092 Ordering::Less
12093 }
12094 }) {
12095 Ok(i) | Err(i) => i,
12096 };
12097 for range in &ranges[start_ix..] {
12098 if range
12099 .start
12100 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12101 .is_ge()
12102 {
12103 break;
12104 }
12105
12106 let start = range.start.to_display_point(display_snapshot);
12107 let end = range.end.to_display_point(display_snapshot);
12108 results.push((start..end, color))
12109 }
12110 }
12111 results
12112 }
12113
12114 /// Get the text ranges corresponding to the redaction query
12115 pub fn redacted_ranges(
12116 &self,
12117 search_range: Range<Anchor>,
12118 display_snapshot: &DisplaySnapshot,
12119 cx: &WindowContext,
12120 ) -> Vec<Range<DisplayPoint>> {
12121 display_snapshot
12122 .buffer_snapshot
12123 .redacted_ranges(search_range, |file| {
12124 if let Some(file) = file {
12125 file.is_private()
12126 && EditorSettings::get(
12127 Some(SettingsLocation {
12128 worktree_id: file.worktree_id(cx),
12129 path: file.path().as_ref(),
12130 }),
12131 cx,
12132 )
12133 .redact_private_values
12134 } else {
12135 false
12136 }
12137 })
12138 .map(|range| {
12139 range.start.to_display_point(display_snapshot)
12140 ..range.end.to_display_point(display_snapshot)
12141 })
12142 .collect()
12143 }
12144
12145 pub fn highlight_text<T: 'static>(
12146 &mut self,
12147 ranges: Vec<Range<Anchor>>,
12148 style: HighlightStyle,
12149 cx: &mut ViewContext<Self>,
12150 ) {
12151 self.display_map.update(cx, |map, _| {
12152 map.highlight_text(TypeId::of::<T>(), ranges, style)
12153 });
12154 cx.notify();
12155 }
12156
12157 pub(crate) fn highlight_inlays<T: 'static>(
12158 &mut self,
12159 highlights: Vec<InlayHighlight>,
12160 style: HighlightStyle,
12161 cx: &mut ViewContext<Self>,
12162 ) {
12163 self.display_map.update(cx, |map, _| {
12164 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12165 });
12166 cx.notify();
12167 }
12168
12169 pub fn text_highlights<'a, T: 'static>(
12170 &'a self,
12171 cx: &'a AppContext,
12172 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12173 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12174 }
12175
12176 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12177 let cleared = self
12178 .display_map
12179 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12180 if cleared {
12181 cx.notify();
12182 }
12183 }
12184
12185 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12186 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12187 && self.focus_handle.is_focused(cx)
12188 }
12189
12190 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12191 self.show_cursor_when_unfocused = is_enabled;
12192 cx.notify();
12193 }
12194
12195 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12196 cx.notify();
12197 }
12198
12199 fn on_buffer_event(
12200 &mut self,
12201 multibuffer: Model<MultiBuffer>,
12202 event: &multi_buffer::Event,
12203 cx: &mut ViewContext<Self>,
12204 ) {
12205 match event {
12206 multi_buffer::Event::Edited {
12207 singleton_buffer_edited,
12208 } => {
12209 self.scrollbar_marker_state.dirty = true;
12210 self.active_indent_guides_state.dirty = true;
12211 self.refresh_active_diagnostics(cx);
12212 self.refresh_code_actions(cx);
12213 if self.has_active_inline_completion(cx) {
12214 self.update_visible_inline_completion(cx);
12215 }
12216 cx.emit(EditorEvent::BufferEdited);
12217 cx.emit(SearchEvent::MatchesInvalidated);
12218 if *singleton_buffer_edited {
12219 if let Some(project) = &self.project {
12220 let project = project.read(cx);
12221 #[allow(clippy::mutable_key_type)]
12222 let languages_affected = multibuffer
12223 .read(cx)
12224 .all_buffers()
12225 .into_iter()
12226 .filter_map(|buffer| {
12227 let buffer = buffer.read(cx);
12228 let language = buffer.language()?;
12229 if project.is_local()
12230 && project.language_servers_for_buffer(buffer, cx).count() == 0
12231 {
12232 None
12233 } else {
12234 Some(language)
12235 }
12236 })
12237 .cloned()
12238 .collect::<HashSet<_>>();
12239 if !languages_affected.is_empty() {
12240 self.refresh_inlay_hints(
12241 InlayHintRefreshReason::BufferEdited(languages_affected),
12242 cx,
12243 );
12244 }
12245 }
12246 }
12247
12248 let Some(project) = &self.project else { return };
12249 let (telemetry, is_via_ssh) = {
12250 let project = project.read(cx);
12251 let telemetry = project.client().telemetry().clone();
12252 let is_via_ssh = project.is_via_ssh();
12253 (telemetry, is_via_ssh)
12254 };
12255 refresh_linked_ranges(self, cx);
12256 telemetry.log_edit_event("editor", is_via_ssh);
12257 }
12258 multi_buffer::Event::ExcerptsAdded {
12259 buffer,
12260 predecessor,
12261 excerpts,
12262 } => {
12263 self.tasks_update_task = Some(self.refresh_runnables(cx));
12264 cx.emit(EditorEvent::ExcerptsAdded {
12265 buffer: buffer.clone(),
12266 predecessor: *predecessor,
12267 excerpts: excerpts.clone(),
12268 });
12269 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12270 }
12271 multi_buffer::Event::ExcerptsRemoved { ids } => {
12272 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12273 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12274 }
12275 multi_buffer::Event::ExcerptsEdited { ids } => {
12276 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12277 }
12278 multi_buffer::Event::ExcerptsExpanded { ids } => {
12279 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12280 }
12281 multi_buffer::Event::Reparsed(buffer_id) => {
12282 self.tasks_update_task = Some(self.refresh_runnables(cx));
12283
12284 cx.emit(EditorEvent::Reparsed(*buffer_id));
12285 }
12286 multi_buffer::Event::LanguageChanged(buffer_id) => {
12287 linked_editing_ranges::refresh_linked_ranges(self, cx);
12288 cx.emit(EditorEvent::Reparsed(*buffer_id));
12289 cx.notify();
12290 }
12291 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12292 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12293 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12294 cx.emit(EditorEvent::TitleChanged)
12295 }
12296 multi_buffer::Event::DiffBaseChanged => {
12297 self.scrollbar_marker_state.dirty = true;
12298 cx.emit(EditorEvent::DiffBaseChanged);
12299 cx.notify();
12300 }
12301 multi_buffer::Event::DiffUpdated { buffer } => {
12302 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12303 cx.notify();
12304 }
12305 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12306 multi_buffer::Event::DiagnosticsUpdated => {
12307 self.refresh_active_diagnostics(cx);
12308 self.scrollbar_marker_state.dirty = true;
12309 cx.notify();
12310 }
12311 _ => {}
12312 };
12313 }
12314
12315 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12316 cx.notify();
12317 }
12318
12319 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12320 self.tasks_update_task = Some(self.refresh_runnables(cx));
12321 self.refresh_inline_completion(true, false, cx);
12322 self.refresh_inlay_hints(
12323 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12324 self.selections.newest_anchor().head(),
12325 &self.buffer.read(cx).snapshot(cx),
12326 cx,
12327 )),
12328 cx,
12329 );
12330
12331 let old_cursor_shape = self.cursor_shape;
12332
12333 {
12334 let editor_settings = EditorSettings::get_global(cx);
12335 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12336 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12337 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12338 }
12339
12340 if old_cursor_shape != self.cursor_shape {
12341 cx.emit(EditorEvent::CursorShapeChanged);
12342 }
12343
12344 let project_settings = ProjectSettings::get_global(cx);
12345 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12346
12347 if self.mode == EditorMode::Full {
12348 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12349 if self.git_blame_inline_enabled != inline_blame_enabled {
12350 self.toggle_git_blame_inline_internal(false, cx);
12351 }
12352 }
12353
12354 cx.notify();
12355 }
12356
12357 pub fn set_searchable(&mut self, searchable: bool) {
12358 self.searchable = searchable;
12359 }
12360
12361 pub fn searchable(&self) -> bool {
12362 self.searchable
12363 }
12364
12365 fn open_proposed_changes_editor(
12366 &mut self,
12367 _: &OpenProposedChangesEditor,
12368 cx: &mut ViewContext<Self>,
12369 ) {
12370 let Some(workspace) = self.workspace() else {
12371 cx.propagate();
12372 return;
12373 };
12374
12375 let buffer = self.buffer.read(cx);
12376 let mut new_selections_by_buffer = HashMap::default();
12377 for selection in self.selections.all::<usize>(cx) {
12378 for (buffer, range, _) in
12379 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12380 {
12381 let mut range = range.to_point(buffer.read(cx));
12382 range.start.column = 0;
12383 range.end.column = buffer.read(cx).line_len(range.end.row);
12384 new_selections_by_buffer
12385 .entry(buffer)
12386 .or_insert(Vec::new())
12387 .push(range)
12388 }
12389 }
12390
12391 let proposed_changes_buffers = new_selections_by_buffer
12392 .into_iter()
12393 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12394 .collect::<Vec<_>>();
12395 let proposed_changes_editor = cx.new_view(|cx| {
12396 ProposedChangesEditor::new(
12397 "Proposed changes",
12398 proposed_changes_buffers,
12399 self.project.clone(),
12400 cx,
12401 )
12402 });
12403
12404 cx.window_context().defer(move |cx| {
12405 workspace.update(cx, |workspace, cx| {
12406 workspace.active_pane().update(cx, |pane, cx| {
12407 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12408 });
12409 });
12410 });
12411 }
12412
12413 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12414 self.open_excerpts_common(true, cx)
12415 }
12416
12417 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12418 self.open_excerpts_common(false, cx)
12419 }
12420
12421 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12422 let buffer = self.buffer.read(cx);
12423 if buffer.is_singleton() {
12424 cx.propagate();
12425 return;
12426 }
12427
12428 let Some(workspace) = self.workspace() else {
12429 cx.propagate();
12430 return;
12431 };
12432
12433 let mut new_selections_by_buffer = HashMap::default();
12434 for selection in self.selections.all::<usize>(cx) {
12435 for (mut buffer_handle, mut range, _) in
12436 buffer.range_to_buffer_ranges(selection.range(), cx)
12437 {
12438 // When editing branch buffers, jump to the corresponding location
12439 // in their base buffer.
12440 let buffer = buffer_handle.read(cx);
12441 if let Some(base_buffer) = buffer.diff_base_buffer() {
12442 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12443 buffer_handle = base_buffer;
12444 }
12445
12446 if selection.reversed {
12447 mem::swap(&mut range.start, &mut range.end);
12448 }
12449 new_selections_by_buffer
12450 .entry(buffer_handle)
12451 .or_insert(Vec::new())
12452 .push(range)
12453 }
12454 }
12455
12456 // We defer the pane interaction because we ourselves are a workspace item
12457 // and activating a new item causes the pane to call a method on us reentrantly,
12458 // which panics if we're on the stack.
12459 cx.window_context().defer(move |cx| {
12460 workspace.update(cx, |workspace, cx| {
12461 let pane = if split {
12462 workspace.adjacent_pane(cx)
12463 } else {
12464 workspace.active_pane().clone()
12465 };
12466
12467 for (buffer, ranges) in new_selections_by_buffer {
12468 let editor =
12469 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12470 editor.update(cx, |editor, cx| {
12471 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12472 s.select_ranges(ranges);
12473 });
12474 });
12475 }
12476 })
12477 });
12478 }
12479
12480 fn jump(
12481 &mut self,
12482 path: ProjectPath,
12483 position: Point,
12484 anchor: language::Anchor,
12485 offset_from_top: u32,
12486 cx: &mut ViewContext<Self>,
12487 ) {
12488 let workspace = self.workspace();
12489 cx.spawn(|_, mut cx| async move {
12490 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12491 let editor = workspace.update(&mut cx, |workspace, cx| {
12492 // Reset the preview item id before opening the new item
12493 workspace.active_pane().update(cx, |pane, cx| {
12494 pane.set_preview_item_id(None, cx);
12495 });
12496 workspace.open_path_preview(path, None, true, true, cx)
12497 })?;
12498 let editor = editor
12499 .await?
12500 .downcast::<Editor>()
12501 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12502 .downgrade();
12503 editor.update(&mut cx, |editor, cx| {
12504 let buffer = editor
12505 .buffer()
12506 .read(cx)
12507 .as_singleton()
12508 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12509 let buffer = buffer.read(cx);
12510 let cursor = if buffer.can_resolve(&anchor) {
12511 language::ToPoint::to_point(&anchor, buffer)
12512 } else {
12513 buffer.clip_point(position, Bias::Left)
12514 };
12515
12516 let nav_history = editor.nav_history.take();
12517 editor.change_selections(
12518 Some(Autoscroll::top_relative(offset_from_top as usize)),
12519 cx,
12520 |s| {
12521 s.select_ranges([cursor..cursor]);
12522 },
12523 );
12524 editor.nav_history = nav_history;
12525
12526 anyhow::Ok(())
12527 })??;
12528
12529 anyhow::Ok(())
12530 })
12531 .detach_and_log_err(cx);
12532 }
12533
12534 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12535 let snapshot = self.buffer.read(cx).read(cx);
12536 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12537 Some(
12538 ranges
12539 .iter()
12540 .map(move |range| {
12541 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12542 })
12543 .collect(),
12544 )
12545 }
12546
12547 fn selection_replacement_ranges(
12548 &self,
12549 range: Range<OffsetUtf16>,
12550 cx: &AppContext,
12551 ) -> Vec<Range<OffsetUtf16>> {
12552 let selections = self.selections.all::<OffsetUtf16>(cx);
12553 let newest_selection = selections
12554 .iter()
12555 .max_by_key(|selection| selection.id)
12556 .unwrap();
12557 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12558 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12559 let snapshot = self.buffer.read(cx).read(cx);
12560 selections
12561 .into_iter()
12562 .map(|mut selection| {
12563 selection.start.0 =
12564 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12565 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12566 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12567 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12568 })
12569 .collect()
12570 }
12571
12572 fn report_editor_event(
12573 &self,
12574 operation: &'static str,
12575 file_extension: Option<String>,
12576 cx: &AppContext,
12577 ) {
12578 if cfg!(any(test, feature = "test-support")) {
12579 return;
12580 }
12581
12582 let Some(project) = &self.project else { return };
12583
12584 // If None, we are in a file without an extension
12585 let file = self
12586 .buffer
12587 .read(cx)
12588 .as_singleton()
12589 .and_then(|b| b.read(cx).file());
12590 let file_extension = file_extension.or(file
12591 .as_ref()
12592 .and_then(|file| Path::new(file.file_name(cx)).extension())
12593 .and_then(|e| e.to_str())
12594 .map(|a| a.to_string()));
12595
12596 let vim_mode = cx
12597 .global::<SettingsStore>()
12598 .raw_user_settings()
12599 .get("vim_mode")
12600 == Some(&serde_json::Value::Bool(true));
12601
12602 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12603 == language::language_settings::InlineCompletionProvider::Copilot;
12604 let copilot_enabled_for_language = self
12605 .buffer
12606 .read(cx)
12607 .settings_at(0, cx)
12608 .show_inline_completions;
12609
12610 let project = project.read(cx);
12611 let telemetry = project.client().telemetry().clone();
12612 telemetry.report_editor_event(
12613 file_extension,
12614 vim_mode,
12615 operation,
12616 copilot_enabled,
12617 copilot_enabled_for_language,
12618 project.is_via_ssh(),
12619 )
12620 }
12621
12622 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12623 /// with each line being an array of {text, highlight} objects.
12624 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12625 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12626 return;
12627 };
12628
12629 #[derive(Serialize)]
12630 struct Chunk<'a> {
12631 text: String,
12632 highlight: Option<&'a str>,
12633 }
12634
12635 let snapshot = buffer.read(cx).snapshot();
12636 let range = self
12637 .selected_text_range(false, cx)
12638 .and_then(|selection| {
12639 if selection.range.is_empty() {
12640 None
12641 } else {
12642 Some(selection.range)
12643 }
12644 })
12645 .unwrap_or_else(|| 0..snapshot.len());
12646
12647 let chunks = snapshot.chunks(range, true);
12648 let mut lines = Vec::new();
12649 let mut line: VecDeque<Chunk> = VecDeque::new();
12650
12651 let Some(style) = self.style.as_ref() else {
12652 return;
12653 };
12654
12655 for chunk in chunks {
12656 let highlight = chunk
12657 .syntax_highlight_id
12658 .and_then(|id| id.name(&style.syntax));
12659 let mut chunk_lines = chunk.text.split('\n').peekable();
12660 while let Some(text) = chunk_lines.next() {
12661 let mut merged_with_last_token = false;
12662 if let Some(last_token) = line.back_mut() {
12663 if last_token.highlight == highlight {
12664 last_token.text.push_str(text);
12665 merged_with_last_token = true;
12666 }
12667 }
12668
12669 if !merged_with_last_token {
12670 line.push_back(Chunk {
12671 text: text.into(),
12672 highlight,
12673 });
12674 }
12675
12676 if chunk_lines.peek().is_some() {
12677 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12678 line.pop_front();
12679 }
12680 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12681 line.pop_back();
12682 }
12683
12684 lines.push(mem::take(&mut line));
12685 }
12686 }
12687 }
12688
12689 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12690 return;
12691 };
12692 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12693 }
12694
12695 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12696 &self.inlay_hint_cache
12697 }
12698
12699 pub fn replay_insert_event(
12700 &mut self,
12701 text: &str,
12702 relative_utf16_range: Option<Range<isize>>,
12703 cx: &mut ViewContext<Self>,
12704 ) {
12705 if !self.input_enabled {
12706 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12707 return;
12708 }
12709 if let Some(relative_utf16_range) = relative_utf16_range {
12710 let selections = self.selections.all::<OffsetUtf16>(cx);
12711 self.change_selections(None, cx, |s| {
12712 let new_ranges = selections.into_iter().map(|range| {
12713 let start = OffsetUtf16(
12714 range
12715 .head()
12716 .0
12717 .saturating_add_signed(relative_utf16_range.start),
12718 );
12719 let end = OffsetUtf16(
12720 range
12721 .head()
12722 .0
12723 .saturating_add_signed(relative_utf16_range.end),
12724 );
12725 start..end
12726 });
12727 s.select_ranges(new_ranges);
12728 });
12729 }
12730
12731 self.handle_input(text, cx);
12732 }
12733
12734 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12735 let Some(provider) = self.semantics_provider.as_ref() else {
12736 return false;
12737 };
12738
12739 let mut supports = false;
12740 self.buffer().read(cx).for_each_buffer(|buffer| {
12741 supports |= provider.supports_inlay_hints(buffer, cx);
12742 });
12743 supports
12744 }
12745
12746 pub fn focus(&self, cx: &mut WindowContext) {
12747 cx.focus(&self.focus_handle)
12748 }
12749
12750 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12751 self.focus_handle.is_focused(cx)
12752 }
12753
12754 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12755 cx.emit(EditorEvent::Focused);
12756
12757 if let Some(descendant) = self
12758 .last_focused_descendant
12759 .take()
12760 .and_then(|descendant| descendant.upgrade())
12761 {
12762 cx.focus(&descendant);
12763 } else {
12764 if let Some(blame) = self.blame.as_ref() {
12765 blame.update(cx, GitBlame::focus)
12766 }
12767
12768 self.blink_manager.update(cx, BlinkManager::enable);
12769 self.show_cursor_names(cx);
12770 self.buffer.update(cx, |buffer, cx| {
12771 buffer.finalize_last_transaction(cx);
12772 if self.leader_peer_id.is_none() {
12773 buffer.set_active_selections(
12774 &self.selections.disjoint_anchors(),
12775 self.selections.line_mode,
12776 self.cursor_shape,
12777 cx,
12778 );
12779 }
12780 });
12781 }
12782 }
12783
12784 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12785 cx.emit(EditorEvent::FocusedIn)
12786 }
12787
12788 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12789 if event.blurred != self.focus_handle {
12790 self.last_focused_descendant = Some(event.blurred);
12791 }
12792 }
12793
12794 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12795 self.blink_manager.update(cx, BlinkManager::disable);
12796 self.buffer
12797 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12798
12799 if let Some(blame) = self.blame.as_ref() {
12800 blame.update(cx, GitBlame::blur)
12801 }
12802 if !self.hover_state.focused(cx) {
12803 hide_hover(self, cx);
12804 }
12805
12806 self.hide_context_menu(cx);
12807 cx.emit(EditorEvent::Blurred);
12808 cx.notify();
12809 }
12810
12811 pub fn register_action<A: Action>(
12812 &mut self,
12813 listener: impl Fn(&A, &mut WindowContext) + 'static,
12814 ) -> Subscription {
12815 let id = self.next_editor_action_id.post_inc();
12816 let listener = Arc::new(listener);
12817 self.editor_actions.borrow_mut().insert(
12818 id,
12819 Box::new(move |cx| {
12820 let cx = cx.window_context();
12821 let listener = listener.clone();
12822 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12823 let action = action.downcast_ref().unwrap();
12824 if phase == DispatchPhase::Bubble {
12825 listener(action, cx)
12826 }
12827 })
12828 }),
12829 );
12830
12831 let editor_actions = self.editor_actions.clone();
12832 Subscription::new(move || {
12833 editor_actions.borrow_mut().remove(&id);
12834 })
12835 }
12836
12837 pub fn file_header_size(&self) -> u32 {
12838 FILE_HEADER_HEIGHT
12839 }
12840
12841 pub fn revert(
12842 &mut self,
12843 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12844 cx: &mut ViewContext<Self>,
12845 ) {
12846 self.buffer().update(cx, |multi_buffer, cx| {
12847 for (buffer_id, changes) in revert_changes {
12848 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12849 buffer.update(cx, |buffer, cx| {
12850 buffer.edit(
12851 changes.into_iter().map(|(range, text)| {
12852 (range, text.to_string().map(Arc::<str>::from))
12853 }),
12854 None,
12855 cx,
12856 );
12857 });
12858 }
12859 }
12860 });
12861 self.change_selections(None, cx, |selections| selections.refresh());
12862 }
12863
12864 pub fn to_pixel_point(
12865 &mut self,
12866 source: multi_buffer::Anchor,
12867 editor_snapshot: &EditorSnapshot,
12868 cx: &mut ViewContext<Self>,
12869 ) -> Option<gpui::Point<Pixels>> {
12870 let source_point = source.to_display_point(editor_snapshot);
12871 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12872 }
12873
12874 pub fn display_to_pixel_point(
12875 &mut self,
12876 source: DisplayPoint,
12877 editor_snapshot: &EditorSnapshot,
12878 cx: &mut ViewContext<Self>,
12879 ) -> Option<gpui::Point<Pixels>> {
12880 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12881 let text_layout_details = self.text_layout_details(cx);
12882 let scroll_top = text_layout_details
12883 .scroll_anchor
12884 .scroll_position(editor_snapshot)
12885 .y;
12886
12887 if source.row().as_f32() < scroll_top.floor() {
12888 return None;
12889 }
12890 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12891 let source_y = line_height * (source.row().as_f32() - scroll_top);
12892 Some(gpui::Point::new(source_x, source_y))
12893 }
12894
12895 pub fn has_active_completions_menu(&self) -> bool {
12896 self.context_menu.read().as_ref().map_or(false, |menu| {
12897 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12898 })
12899 }
12900
12901 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12902 self.addons
12903 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12904 }
12905
12906 pub fn unregister_addon<T: Addon>(&mut self) {
12907 self.addons.remove(&std::any::TypeId::of::<T>());
12908 }
12909
12910 pub fn addon<T: Addon>(&self) -> Option<&T> {
12911 let type_id = std::any::TypeId::of::<T>();
12912 self.addons
12913 .get(&type_id)
12914 .and_then(|item| item.to_any().downcast_ref::<T>())
12915 }
12916}
12917
12918fn hunks_for_selections(
12919 multi_buffer_snapshot: &MultiBufferSnapshot,
12920 selections: &[Selection<Anchor>],
12921) -> Vec<MultiBufferDiffHunk> {
12922 let buffer_rows_for_selections = selections.iter().map(|selection| {
12923 let head = selection.head();
12924 let tail = selection.tail();
12925 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12926 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12927 if start > end {
12928 end..start
12929 } else {
12930 start..end
12931 }
12932 });
12933
12934 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12935}
12936
12937pub fn hunks_for_rows(
12938 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12939 multi_buffer_snapshot: &MultiBufferSnapshot,
12940) -> Vec<MultiBufferDiffHunk> {
12941 let mut hunks = Vec::new();
12942 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12943 HashMap::default();
12944 for selected_multi_buffer_rows in rows {
12945 let query_rows =
12946 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12947 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12948 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12949 // when the caret is just above or just below the deleted hunk.
12950 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12951 let related_to_selection = if allow_adjacent {
12952 hunk.row_range.overlaps(&query_rows)
12953 || hunk.row_range.start == query_rows.end
12954 || hunk.row_range.end == query_rows.start
12955 } else {
12956 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12957 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12958 hunk.row_range.overlaps(&selected_multi_buffer_rows)
12959 || selected_multi_buffer_rows.end == hunk.row_range.start
12960 };
12961 if related_to_selection {
12962 if !processed_buffer_rows
12963 .entry(hunk.buffer_id)
12964 .or_default()
12965 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12966 {
12967 continue;
12968 }
12969 hunks.push(hunk);
12970 }
12971 }
12972 }
12973
12974 hunks
12975}
12976
12977pub trait CollaborationHub {
12978 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12979 fn user_participant_indices<'a>(
12980 &self,
12981 cx: &'a AppContext,
12982 ) -> &'a HashMap<u64, ParticipantIndex>;
12983 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12984}
12985
12986impl CollaborationHub for Model<Project> {
12987 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12988 self.read(cx).collaborators()
12989 }
12990
12991 fn user_participant_indices<'a>(
12992 &self,
12993 cx: &'a AppContext,
12994 ) -> &'a HashMap<u64, ParticipantIndex> {
12995 self.read(cx).user_store().read(cx).participant_indices()
12996 }
12997
12998 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12999 let this = self.read(cx);
13000 let user_ids = this.collaborators().values().map(|c| c.user_id);
13001 this.user_store().read_with(cx, |user_store, cx| {
13002 user_store.participant_names(user_ids, cx)
13003 })
13004 }
13005}
13006
13007pub trait SemanticsProvider {
13008 fn hover(
13009 &self,
13010 buffer: &Model<Buffer>,
13011 position: text::Anchor,
13012 cx: &mut AppContext,
13013 ) -> Option<Task<Vec<project::Hover>>>;
13014
13015 fn inlay_hints(
13016 &self,
13017 buffer_handle: Model<Buffer>,
13018 range: Range<text::Anchor>,
13019 cx: &mut AppContext,
13020 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13021
13022 fn resolve_inlay_hint(
13023 &self,
13024 hint: InlayHint,
13025 buffer_handle: Model<Buffer>,
13026 server_id: LanguageServerId,
13027 cx: &mut AppContext,
13028 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13029
13030 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13031
13032 fn document_highlights(
13033 &self,
13034 buffer: &Model<Buffer>,
13035 position: text::Anchor,
13036 cx: &mut AppContext,
13037 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13038
13039 fn definitions(
13040 &self,
13041 buffer: &Model<Buffer>,
13042 position: text::Anchor,
13043 kind: GotoDefinitionKind,
13044 cx: &mut AppContext,
13045 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13046
13047 fn range_for_rename(
13048 &self,
13049 buffer: &Model<Buffer>,
13050 position: text::Anchor,
13051 cx: &mut AppContext,
13052 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13053
13054 fn perform_rename(
13055 &self,
13056 buffer: &Model<Buffer>,
13057 position: text::Anchor,
13058 new_name: String,
13059 cx: &mut AppContext,
13060 ) -> Option<Task<Result<ProjectTransaction>>>;
13061}
13062
13063pub trait CompletionProvider {
13064 fn completions(
13065 &self,
13066 buffer: &Model<Buffer>,
13067 buffer_position: text::Anchor,
13068 trigger: CompletionContext,
13069 cx: &mut ViewContext<Editor>,
13070 ) -> Task<Result<Vec<Completion>>>;
13071
13072 fn resolve_completions(
13073 &self,
13074 buffer: Model<Buffer>,
13075 completion_indices: Vec<usize>,
13076 completions: Arc<RwLock<Box<[Completion]>>>,
13077 cx: &mut ViewContext<Editor>,
13078 ) -> Task<Result<bool>>;
13079
13080 fn apply_additional_edits_for_completion(
13081 &self,
13082 buffer: Model<Buffer>,
13083 completion: Completion,
13084 push_to_history: bool,
13085 cx: &mut ViewContext<Editor>,
13086 ) -> Task<Result<Option<language::Transaction>>>;
13087
13088 fn is_completion_trigger(
13089 &self,
13090 buffer: &Model<Buffer>,
13091 position: language::Anchor,
13092 text: &str,
13093 trigger_in_words: bool,
13094 cx: &mut ViewContext<Editor>,
13095 ) -> bool;
13096
13097 fn sort_completions(&self) -> bool {
13098 true
13099 }
13100}
13101
13102pub trait CodeActionProvider {
13103 fn code_actions(
13104 &self,
13105 buffer: &Model<Buffer>,
13106 range: Range<text::Anchor>,
13107 cx: &mut WindowContext,
13108 ) -> Task<Result<Vec<CodeAction>>>;
13109
13110 fn apply_code_action(
13111 &self,
13112 buffer_handle: Model<Buffer>,
13113 action: CodeAction,
13114 excerpt_id: ExcerptId,
13115 push_to_history: bool,
13116 cx: &mut WindowContext,
13117 ) -> Task<Result<ProjectTransaction>>;
13118}
13119
13120impl CodeActionProvider for Model<Project> {
13121 fn code_actions(
13122 &self,
13123 buffer: &Model<Buffer>,
13124 range: Range<text::Anchor>,
13125 cx: &mut WindowContext,
13126 ) -> Task<Result<Vec<CodeAction>>> {
13127 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13128 }
13129
13130 fn apply_code_action(
13131 &self,
13132 buffer_handle: Model<Buffer>,
13133 action: CodeAction,
13134 _excerpt_id: ExcerptId,
13135 push_to_history: bool,
13136 cx: &mut WindowContext,
13137 ) -> Task<Result<ProjectTransaction>> {
13138 self.update(cx, |project, cx| {
13139 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13140 })
13141 }
13142}
13143
13144fn snippet_completions(
13145 project: &Project,
13146 buffer: &Model<Buffer>,
13147 buffer_position: text::Anchor,
13148 cx: &mut AppContext,
13149) -> Vec<Completion> {
13150 let language = buffer.read(cx).language_at(buffer_position);
13151 let language_name = language.as_ref().map(|language| language.lsp_id());
13152 let snippet_store = project.snippets().read(cx);
13153 let snippets = snippet_store.snippets_for(language_name, cx);
13154
13155 if snippets.is_empty() {
13156 return vec![];
13157 }
13158 let snapshot = buffer.read(cx).text_snapshot();
13159 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13160
13161 let scope = language.map(|language| language.default_scope());
13162 let classifier = CharClassifier::new(scope).for_completion(true);
13163 let mut last_word = chars
13164 .take_while(|c| classifier.is_word(*c))
13165 .collect::<String>();
13166 last_word = last_word.chars().rev().collect();
13167 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13168 let to_lsp = |point: &text::Anchor| {
13169 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13170 point_to_lsp(end)
13171 };
13172 let lsp_end = to_lsp(&buffer_position);
13173 snippets
13174 .into_iter()
13175 .filter_map(|snippet| {
13176 let matching_prefix = snippet
13177 .prefix
13178 .iter()
13179 .find(|prefix| prefix.starts_with(&last_word))?;
13180 let start = as_offset - last_word.len();
13181 let start = snapshot.anchor_before(start);
13182 let range = start..buffer_position;
13183 let lsp_start = to_lsp(&start);
13184 let lsp_range = lsp::Range {
13185 start: lsp_start,
13186 end: lsp_end,
13187 };
13188 Some(Completion {
13189 old_range: range,
13190 new_text: snippet.body.clone(),
13191 label: CodeLabel {
13192 text: matching_prefix.clone(),
13193 runs: vec![],
13194 filter_range: 0..matching_prefix.len(),
13195 },
13196 server_id: LanguageServerId(usize::MAX),
13197 documentation: snippet.description.clone().map(Documentation::SingleLine),
13198 lsp_completion: lsp::CompletionItem {
13199 label: snippet.prefix.first().unwrap().clone(),
13200 kind: Some(CompletionItemKind::SNIPPET),
13201 label_details: snippet.description.as_ref().map(|description| {
13202 lsp::CompletionItemLabelDetails {
13203 detail: Some(description.clone()),
13204 description: None,
13205 }
13206 }),
13207 insert_text_format: Some(InsertTextFormat::SNIPPET),
13208 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13209 lsp::InsertReplaceEdit {
13210 new_text: snippet.body.clone(),
13211 insert: lsp_range,
13212 replace: lsp_range,
13213 },
13214 )),
13215 filter_text: Some(snippet.body.clone()),
13216 sort_text: Some(char::MAX.to_string()),
13217 ..Default::default()
13218 },
13219 confirm: None,
13220 })
13221 })
13222 .collect()
13223}
13224
13225impl CompletionProvider for Model<Project> {
13226 fn completions(
13227 &self,
13228 buffer: &Model<Buffer>,
13229 buffer_position: text::Anchor,
13230 options: CompletionContext,
13231 cx: &mut ViewContext<Editor>,
13232 ) -> Task<Result<Vec<Completion>>> {
13233 self.update(cx, |project, cx| {
13234 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13235 let project_completions = project.completions(buffer, buffer_position, options, cx);
13236 cx.background_executor().spawn(async move {
13237 let mut completions = project_completions.await?;
13238 //let snippets = snippets.into_iter().;
13239 completions.extend(snippets);
13240 Ok(completions)
13241 })
13242 })
13243 }
13244
13245 fn resolve_completions(
13246 &self,
13247 buffer: Model<Buffer>,
13248 completion_indices: Vec<usize>,
13249 completions: Arc<RwLock<Box<[Completion]>>>,
13250 cx: &mut ViewContext<Editor>,
13251 ) -> Task<Result<bool>> {
13252 self.update(cx, |project, cx| {
13253 project.resolve_completions(buffer, completion_indices, completions, cx)
13254 })
13255 }
13256
13257 fn apply_additional_edits_for_completion(
13258 &self,
13259 buffer: Model<Buffer>,
13260 completion: Completion,
13261 push_to_history: bool,
13262 cx: &mut ViewContext<Editor>,
13263 ) -> Task<Result<Option<language::Transaction>>> {
13264 self.update(cx, |project, cx| {
13265 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13266 })
13267 }
13268
13269 fn is_completion_trigger(
13270 &self,
13271 buffer: &Model<Buffer>,
13272 position: language::Anchor,
13273 text: &str,
13274 trigger_in_words: bool,
13275 cx: &mut ViewContext<Editor>,
13276 ) -> bool {
13277 if !EditorSettings::get_global(cx).show_completions_on_input {
13278 return false;
13279 }
13280
13281 let mut chars = text.chars();
13282 let char = if let Some(char) = chars.next() {
13283 char
13284 } else {
13285 return false;
13286 };
13287 if chars.next().is_some() {
13288 return false;
13289 }
13290
13291 let buffer = buffer.read(cx);
13292 let classifier = buffer
13293 .snapshot()
13294 .char_classifier_at(position)
13295 .for_completion(true);
13296 if trigger_in_words && classifier.is_word(char) {
13297 return true;
13298 }
13299
13300 buffer
13301 .completion_triggers()
13302 .iter()
13303 .any(|string| string == text)
13304 }
13305}
13306
13307impl SemanticsProvider for Model<Project> {
13308 fn hover(
13309 &self,
13310 buffer: &Model<Buffer>,
13311 position: text::Anchor,
13312 cx: &mut AppContext,
13313 ) -> Option<Task<Vec<project::Hover>>> {
13314 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13315 }
13316
13317 fn document_highlights(
13318 &self,
13319 buffer: &Model<Buffer>,
13320 position: text::Anchor,
13321 cx: &mut AppContext,
13322 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13323 Some(self.update(cx, |project, cx| {
13324 project.document_highlights(buffer, position, cx)
13325 }))
13326 }
13327
13328 fn definitions(
13329 &self,
13330 buffer: &Model<Buffer>,
13331 position: text::Anchor,
13332 kind: GotoDefinitionKind,
13333 cx: &mut AppContext,
13334 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13335 Some(self.update(cx, |project, cx| match kind {
13336 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13337 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13338 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13339 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13340 }))
13341 }
13342
13343 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13344 // TODO: make this work for remote projects
13345 self.read(cx)
13346 .language_servers_for_buffer(buffer.read(cx), cx)
13347 .any(
13348 |(_, server)| match server.capabilities().inlay_hint_provider {
13349 Some(lsp::OneOf::Left(enabled)) => enabled,
13350 Some(lsp::OneOf::Right(_)) => true,
13351 None => false,
13352 },
13353 )
13354 }
13355
13356 fn inlay_hints(
13357 &self,
13358 buffer_handle: Model<Buffer>,
13359 range: Range<text::Anchor>,
13360 cx: &mut AppContext,
13361 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13362 Some(self.update(cx, |project, cx| {
13363 project.inlay_hints(buffer_handle, range, cx)
13364 }))
13365 }
13366
13367 fn resolve_inlay_hint(
13368 &self,
13369 hint: InlayHint,
13370 buffer_handle: Model<Buffer>,
13371 server_id: LanguageServerId,
13372 cx: &mut AppContext,
13373 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13374 Some(self.update(cx, |project, cx| {
13375 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13376 }))
13377 }
13378
13379 fn range_for_rename(
13380 &self,
13381 buffer: &Model<Buffer>,
13382 position: text::Anchor,
13383 cx: &mut AppContext,
13384 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13385 Some(self.update(cx, |project, cx| {
13386 project.prepare_rename(buffer.clone(), position, cx)
13387 }))
13388 }
13389
13390 fn perform_rename(
13391 &self,
13392 buffer: &Model<Buffer>,
13393 position: text::Anchor,
13394 new_name: String,
13395 cx: &mut AppContext,
13396 ) -> Option<Task<Result<ProjectTransaction>>> {
13397 Some(self.update(cx, |project, cx| {
13398 project.perform_rename(buffer.clone(), position, new_name, cx)
13399 }))
13400 }
13401}
13402
13403fn inlay_hint_settings(
13404 location: Anchor,
13405 snapshot: &MultiBufferSnapshot,
13406 cx: &mut ViewContext<'_, Editor>,
13407) -> InlayHintSettings {
13408 let file = snapshot.file_at(location);
13409 let language = snapshot.language_at(location).map(|l| l.name());
13410 language_settings(language, file, cx).inlay_hints
13411}
13412
13413fn consume_contiguous_rows(
13414 contiguous_row_selections: &mut Vec<Selection<Point>>,
13415 selection: &Selection<Point>,
13416 display_map: &DisplaySnapshot,
13417 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13418) -> (MultiBufferRow, MultiBufferRow) {
13419 contiguous_row_selections.push(selection.clone());
13420 let start_row = MultiBufferRow(selection.start.row);
13421 let mut end_row = ending_row(selection, display_map);
13422
13423 while let Some(next_selection) = selections.peek() {
13424 if next_selection.start.row <= end_row.0 {
13425 end_row = ending_row(next_selection, display_map);
13426 contiguous_row_selections.push(selections.next().unwrap().clone());
13427 } else {
13428 break;
13429 }
13430 }
13431 (start_row, end_row)
13432}
13433
13434fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13435 if next_selection.end.column > 0 || next_selection.is_empty() {
13436 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13437 } else {
13438 MultiBufferRow(next_selection.end.row)
13439 }
13440}
13441
13442impl EditorSnapshot {
13443 pub fn remote_selections_in_range<'a>(
13444 &'a self,
13445 range: &'a Range<Anchor>,
13446 collaboration_hub: &dyn CollaborationHub,
13447 cx: &'a AppContext,
13448 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13449 let participant_names = collaboration_hub.user_names(cx);
13450 let participant_indices = collaboration_hub.user_participant_indices(cx);
13451 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13452 let collaborators_by_replica_id = collaborators_by_peer_id
13453 .iter()
13454 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13455 .collect::<HashMap<_, _>>();
13456 self.buffer_snapshot
13457 .selections_in_range(range, false)
13458 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13459 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13460 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13461 let user_name = participant_names.get(&collaborator.user_id).cloned();
13462 Some(RemoteSelection {
13463 replica_id,
13464 selection,
13465 cursor_shape,
13466 line_mode,
13467 participant_index,
13468 peer_id: collaborator.peer_id,
13469 user_name,
13470 })
13471 })
13472 }
13473
13474 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13475 self.display_snapshot.buffer_snapshot.language_at(position)
13476 }
13477
13478 pub fn is_focused(&self) -> bool {
13479 self.is_focused
13480 }
13481
13482 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13483 self.placeholder_text.as_ref()
13484 }
13485
13486 pub fn scroll_position(&self) -> gpui::Point<f32> {
13487 self.scroll_anchor.scroll_position(&self.display_snapshot)
13488 }
13489
13490 fn gutter_dimensions(
13491 &self,
13492 font_id: FontId,
13493 font_size: Pixels,
13494 em_width: Pixels,
13495 em_advance: Pixels,
13496 max_line_number_width: Pixels,
13497 cx: &AppContext,
13498 ) -> GutterDimensions {
13499 if !self.show_gutter {
13500 return GutterDimensions::default();
13501 }
13502 let descent = cx.text_system().descent(font_id, font_size);
13503
13504 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13505 matches!(
13506 ProjectSettings::get_global(cx).git.git_gutter,
13507 Some(GitGutterSetting::TrackedFiles)
13508 )
13509 });
13510 let gutter_settings = EditorSettings::get_global(cx).gutter;
13511 let show_line_numbers = self
13512 .show_line_numbers
13513 .unwrap_or(gutter_settings.line_numbers);
13514 let line_gutter_width = if show_line_numbers {
13515 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13516 let min_width_for_number_on_gutter = em_advance * 4.0;
13517 max_line_number_width.max(min_width_for_number_on_gutter)
13518 } else {
13519 0.0.into()
13520 };
13521
13522 let show_code_actions = self
13523 .show_code_actions
13524 .unwrap_or(gutter_settings.code_actions);
13525
13526 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13527
13528 let git_blame_entries_width =
13529 self.git_blame_gutter_max_author_length
13530 .map(|max_author_length| {
13531 // Length of the author name, but also space for the commit hash,
13532 // the spacing and the timestamp.
13533 let max_char_count = max_author_length
13534 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13535 + 7 // length of commit sha
13536 + 14 // length of max relative timestamp ("60 minutes ago")
13537 + 4; // gaps and margins
13538
13539 em_advance * max_char_count
13540 });
13541
13542 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13543 left_padding += if show_code_actions || show_runnables {
13544 em_width * 3.0
13545 } else if show_git_gutter && show_line_numbers {
13546 em_width * 2.0
13547 } else if show_git_gutter || show_line_numbers {
13548 em_width
13549 } else {
13550 px(0.)
13551 };
13552
13553 let right_padding = if gutter_settings.folds && show_line_numbers {
13554 em_width * 4.0
13555 } else if gutter_settings.folds {
13556 em_width * 3.0
13557 } else if show_line_numbers {
13558 em_width
13559 } else {
13560 px(0.)
13561 };
13562
13563 GutterDimensions {
13564 left_padding,
13565 right_padding,
13566 width: line_gutter_width + left_padding + right_padding,
13567 margin: -descent,
13568 git_blame_entries_width,
13569 }
13570 }
13571
13572 pub fn render_fold_toggle(
13573 &self,
13574 buffer_row: MultiBufferRow,
13575 row_contains_cursor: bool,
13576 editor: View<Editor>,
13577 cx: &mut WindowContext,
13578 ) -> Option<AnyElement> {
13579 let folded = self.is_line_folded(buffer_row);
13580
13581 if let Some(crease) = self
13582 .crease_snapshot
13583 .query_row(buffer_row, &self.buffer_snapshot)
13584 {
13585 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13586 if folded {
13587 editor.update(cx, |editor, cx| {
13588 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13589 });
13590 } else {
13591 editor.update(cx, |editor, cx| {
13592 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13593 });
13594 }
13595 });
13596
13597 Some((crease.render_toggle)(
13598 buffer_row,
13599 folded,
13600 toggle_callback,
13601 cx,
13602 ))
13603 } else if folded
13604 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13605 {
13606 Some(
13607 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13608 .selected(folded)
13609 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13610 if folded {
13611 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13612 } else {
13613 this.fold_at(&FoldAt { buffer_row }, cx);
13614 }
13615 }))
13616 .into_any_element(),
13617 )
13618 } else {
13619 None
13620 }
13621 }
13622
13623 pub fn render_crease_trailer(
13624 &self,
13625 buffer_row: MultiBufferRow,
13626 cx: &mut WindowContext,
13627 ) -> Option<AnyElement> {
13628 let folded = self.is_line_folded(buffer_row);
13629 let crease = self
13630 .crease_snapshot
13631 .query_row(buffer_row, &self.buffer_snapshot)?;
13632 Some((crease.render_trailer)(buffer_row, folded, cx))
13633 }
13634}
13635
13636impl Deref for EditorSnapshot {
13637 type Target = DisplaySnapshot;
13638
13639 fn deref(&self) -> &Self::Target {
13640 &self.display_snapshot
13641 }
13642}
13643
13644#[derive(Clone, Debug, PartialEq, Eq)]
13645pub enum EditorEvent {
13646 InputIgnored {
13647 text: Arc<str>,
13648 },
13649 InputHandled {
13650 utf16_range_to_replace: Option<Range<isize>>,
13651 text: Arc<str>,
13652 },
13653 ExcerptsAdded {
13654 buffer: Model<Buffer>,
13655 predecessor: ExcerptId,
13656 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13657 },
13658 ExcerptsRemoved {
13659 ids: Vec<ExcerptId>,
13660 },
13661 ExcerptsEdited {
13662 ids: Vec<ExcerptId>,
13663 },
13664 ExcerptsExpanded {
13665 ids: Vec<ExcerptId>,
13666 },
13667 BufferEdited,
13668 Edited {
13669 transaction_id: clock::Lamport,
13670 },
13671 Reparsed(BufferId),
13672 Focused,
13673 FocusedIn,
13674 Blurred,
13675 DirtyChanged,
13676 Saved,
13677 TitleChanged,
13678 DiffBaseChanged,
13679 SelectionsChanged {
13680 local: bool,
13681 },
13682 ScrollPositionChanged {
13683 local: bool,
13684 autoscroll: bool,
13685 },
13686 Closed,
13687 TransactionUndone {
13688 transaction_id: clock::Lamport,
13689 },
13690 TransactionBegun {
13691 transaction_id: clock::Lamport,
13692 },
13693 Reloaded,
13694 CursorShapeChanged,
13695}
13696
13697impl EventEmitter<EditorEvent> for Editor {}
13698
13699impl FocusableView for Editor {
13700 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13701 self.focus_handle.clone()
13702 }
13703}
13704
13705impl Render for Editor {
13706 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13707 let settings = ThemeSettings::get_global(cx);
13708
13709 let mut text_style = match self.mode {
13710 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13711 color: cx.theme().colors().editor_foreground,
13712 font_family: settings.ui_font.family.clone(),
13713 font_features: settings.ui_font.features.clone(),
13714 font_fallbacks: settings.ui_font.fallbacks.clone(),
13715 font_size: rems(0.875).into(),
13716 font_weight: settings.ui_font.weight,
13717 line_height: relative(settings.buffer_line_height.value()),
13718 ..Default::default()
13719 },
13720 EditorMode::Full => TextStyle {
13721 color: cx.theme().colors().editor_foreground,
13722 font_family: settings.buffer_font.family.clone(),
13723 font_features: settings.buffer_font.features.clone(),
13724 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13725 font_size: settings.buffer_font_size(cx).into(),
13726 font_weight: settings.buffer_font.weight,
13727 line_height: relative(settings.buffer_line_height.value()),
13728 ..Default::default()
13729 },
13730 };
13731 if let Some(text_style_refinement) = &self.text_style_refinement {
13732 text_style.refine(text_style_refinement)
13733 }
13734
13735 let background = match self.mode {
13736 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13737 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13738 EditorMode::Full => cx.theme().colors().editor_background,
13739 };
13740
13741 EditorElement::new(
13742 cx.view(),
13743 EditorStyle {
13744 background,
13745 local_player: cx.theme().players().local(),
13746 text: text_style,
13747 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13748 syntax: cx.theme().syntax().clone(),
13749 status: cx.theme().status().clone(),
13750 inlay_hints_style: make_inlay_hints_style(cx),
13751 suggestions_style: HighlightStyle {
13752 color: Some(cx.theme().status().predictive),
13753 ..HighlightStyle::default()
13754 },
13755 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13756 },
13757 )
13758 }
13759}
13760
13761impl ViewInputHandler for Editor {
13762 fn text_for_range(
13763 &mut self,
13764 range_utf16: Range<usize>,
13765 cx: &mut ViewContext<Self>,
13766 ) -> Option<String> {
13767 Some(
13768 self.buffer
13769 .read(cx)
13770 .read(cx)
13771 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13772 .collect(),
13773 )
13774 }
13775
13776 fn selected_text_range(
13777 &mut self,
13778 ignore_disabled_input: bool,
13779 cx: &mut ViewContext<Self>,
13780 ) -> Option<UTF16Selection> {
13781 // Prevent the IME menu from appearing when holding down an alphabetic key
13782 // while input is disabled.
13783 if !ignore_disabled_input && !self.input_enabled {
13784 return None;
13785 }
13786
13787 let selection = self.selections.newest::<OffsetUtf16>(cx);
13788 let range = selection.range();
13789
13790 Some(UTF16Selection {
13791 range: range.start.0..range.end.0,
13792 reversed: selection.reversed,
13793 })
13794 }
13795
13796 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13797 let snapshot = self.buffer.read(cx).read(cx);
13798 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13799 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13800 }
13801
13802 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13803 self.clear_highlights::<InputComposition>(cx);
13804 self.ime_transaction.take();
13805 }
13806
13807 fn replace_text_in_range(
13808 &mut self,
13809 range_utf16: Option<Range<usize>>,
13810 text: &str,
13811 cx: &mut ViewContext<Self>,
13812 ) {
13813 if !self.input_enabled {
13814 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13815 return;
13816 }
13817
13818 self.transact(cx, |this, cx| {
13819 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13820 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13821 Some(this.selection_replacement_ranges(range_utf16, cx))
13822 } else {
13823 this.marked_text_ranges(cx)
13824 };
13825
13826 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13827 let newest_selection_id = this.selections.newest_anchor().id;
13828 this.selections
13829 .all::<OffsetUtf16>(cx)
13830 .iter()
13831 .zip(ranges_to_replace.iter())
13832 .find_map(|(selection, range)| {
13833 if selection.id == newest_selection_id {
13834 Some(
13835 (range.start.0 as isize - selection.head().0 as isize)
13836 ..(range.end.0 as isize - selection.head().0 as isize),
13837 )
13838 } else {
13839 None
13840 }
13841 })
13842 });
13843
13844 cx.emit(EditorEvent::InputHandled {
13845 utf16_range_to_replace: range_to_replace,
13846 text: text.into(),
13847 });
13848
13849 if let Some(new_selected_ranges) = new_selected_ranges {
13850 this.change_selections(None, cx, |selections| {
13851 selections.select_ranges(new_selected_ranges)
13852 });
13853 this.backspace(&Default::default(), cx);
13854 }
13855
13856 this.handle_input(text, cx);
13857 });
13858
13859 if let Some(transaction) = self.ime_transaction {
13860 self.buffer.update(cx, |buffer, cx| {
13861 buffer.group_until_transaction(transaction, cx);
13862 });
13863 }
13864
13865 self.unmark_text(cx);
13866 }
13867
13868 fn replace_and_mark_text_in_range(
13869 &mut self,
13870 range_utf16: Option<Range<usize>>,
13871 text: &str,
13872 new_selected_range_utf16: Option<Range<usize>>,
13873 cx: &mut ViewContext<Self>,
13874 ) {
13875 if !self.input_enabled {
13876 return;
13877 }
13878
13879 let transaction = self.transact(cx, |this, cx| {
13880 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13881 let snapshot = this.buffer.read(cx).read(cx);
13882 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13883 for marked_range in &mut marked_ranges {
13884 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13885 marked_range.start.0 += relative_range_utf16.start;
13886 marked_range.start =
13887 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13888 marked_range.end =
13889 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13890 }
13891 }
13892 Some(marked_ranges)
13893 } else if let Some(range_utf16) = range_utf16 {
13894 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13895 Some(this.selection_replacement_ranges(range_utf16, cx))
13896 } else {
13897 None
13898 };
13899
13900 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13901 let newest_selection_id = this.selections.newest_anchor().id;
13902 this.selections
13903 .all::<OffsetUtf16>(cx)
13904 .iter()
13905 .zip(ranges_to_replace.iter())
13906 .find_map(|(selection, range)| {
13907 if selection.id == newest_selection_id {
13908 Some(
13909 (range.start.0 as isize - selection.head().0 as isize)
13910 ..(range.end.0 as isize - selection.head().0 as isize),
13911 )
13912 } else {
13913 None
13914 }
13915 })
13916 });
13917
13918 cx.emit(EditorEvent::InputHandled {
13919 utf16_range_to_replace: range_to_replace,
13920 text: text.into(),
13921 });
13922
13923 if let Some(ranges) = ranges_to_replace {
13924 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13925 }
13926
13927 let marked_ranges = {
13928 let snapshot = this.buffer.read(cx).read(cx);
13929 this.selections
13930 .disjoint_anchors()
13931 .iter()
13932 .map(|selection| {
13933 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13934 })
13935 .collect::<Vec<_>>()
13936 };
13937
13938 if text.is_empty() {
13939 this.unmark_text(cx);
13940 } else {
13941 this.highlight_text::<InputComposition>(
13942 marked_ranges.clone(),
13943 HighlightStyle {
13944 underline: Some(UnderlineStyle {
13945 thickness: px(1.),
13946 color: None,
13947 wavy: false,
13948 }),
13949 ..Default::default()
13950 },
13951 cx,
13952 );
13953 }
13954
13955 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13956 let use_autoclose = this.use_autoclose;
13957 let use_auto_surround = this.use_auto_surround;
13958 this.set_use_autoclose(false);
13959 this.set_use_auto_surround(false);
13960 this.handle_input(text, cx);
13961 this.set_use_autoclose(use_autoclose);
13962 this.set_use_auto_surround(use_auto_surround);
13963
13964 if let Some(new_selected_range) = new_selected_range_utf16 {
13965 let snapshot = this.buffer.read(cx).read(cx);
13966 let new_selected_ranges = marked_ranges
13967 .into_iter()
13968 .map(|marked_range| {
13969 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13970 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13971 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13972 snapshot.clip_offset_utf16(new_start, Bias::Left)
13973 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13974 })
13975 .collect::<Vec<_>>();
13976
13977 drop(snapshot);
13978 this.change_selections(None, cx, |selections| {
13979 selections.select_ranges(new_selected_ranges)
13980 });
13981 }
13982 });
13983
13984 self.ime_transaction = self.ime_transaction.or(transaction);
13985 if let Some(transaction) = self.ime_transaction {
13986 self.buffer.update(cx, |buffer, cx| {
13987 buffer.group_until_transaction(transaction, cx);
13988 });
13989 }
13990
13991 if self.text_highlights::<InputComposition>(cx).is_none() {
13992 self.ime_transaction.take();
13993 }
13994 }
13995
13996 fn bounds_for_range(
13997 &mut self,
13998 range_utf16: Range<usize>,
13999 element_bounds: gpui::Bounds<Pixels>,
14000 cx: &mut ViewContext<Self>,
14001 ) -> Option<gpui::Bounds<Pixels>> {
14002 let text_layout_details = self.text_layout_details(cx);
14003 let style = &text_layout_details.editor_style;
14004 let font_id = cx.text_system().resolve_font(&style.text.font());
14005 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14006 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14007
14008 let em_width = cx
14009 .text_system()
14010 .typographic_bounds(font_id, font_size, 'm')
14011 .unwrap()
14012 .size
14013 .width;
14014
14015 let snapshot = self.snapshot(cx);
14016 let scroll_position = snapshot.scroll_position();
14017 let scroll_left = scroll_position.x * em_width;
14018
14019 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14020 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14021 + self.gutter_dimensions.width;
14022 let y = line_height * (start.row().as_f32() - scroll_position.y);
14023
14024 Some(Bounds {
14025 origin: element_bounds.origin + point(x, y),
14026 size: size(em_width, line_height),
14027 })
14028 }
14029}
14030
14031trait SelectionExt {
14032 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14033 fn spanned_rows(
14034 &self,
14035 include_end_if_at_line_start: bool,
14036 map: &DisplaySnapshot,
14037 ) -> Range<MultiBufferRow>;
14038}
14039
14040impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14041 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14042 let start = self
14043 .start
14044 .to_point(&map.buffer_snapshot)
14045 .to_display_point(map);
14046 let end = self
14047 .end
14048 .to_point(&map.buffer_snapshot)
14049 .to_display_point(map);
14050 if self.reversed {
14051 end..start
14052 } else {
14053 start..end
14054 }
14055 }
14056
14057 fn spanned_rows(
14058 &self,
14059 include_end_if_at_line_start: bool,
14060 map: &DisplaySnapshot,
14061 ) -> Range<MultiBufferRow> {
14062 let start = self.start.to_point(&map.buffer_snapshot);
14063 let mut end = self.end.to_point(&map.buffer_snapshot);
14064 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14065 end.row -= 1;
14066 }
14067
14068 let buffer_start = map.prev_line_boundary(start).0;
14069 let buffer_end = map.next_line_boundary(end).0;
14070 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14071 }
14072}
14073
14074impl<T: InvalidationRegion> InvalidationStack<T> {
14075 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14076 where
14077 S: Clone + ToOffset,
14078 {
14079 while let Some(region) = self.last() {
14080 let all_selections_inside_invalidation_ranges =
14081 if selections.len() == region.ranges().len() {
14082 selections
14083 .iter()
14084 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14085 .all(|(selection, invalidation_range)| {
14086 let head = selection.head().to_offset(buffer);
14087 invalidation_range.start <= head && invalidation_range.end >= head
14088 })
14089 } else {
14090 false
14091 };
14092
14093 if all_selections_inside_invalidation_ranges {
14094 break;
14095 } else {
14096 self.pop();
14097 }
14098 }
14099 }
14100}
14101
14102impl<T> Default for InvalidationStack<T> {
14103 fn default() -> Self {
14104 Self(Default::default())
14105 }
14106}
14107
14108impl<T> Deref for InvalidationStack<T> {
14109 type Target = Vec<T>;
14110
14111 fn deref(&self) -> &Self::Target {
14112 &self.0
14113 }
14114}
14115
14116impl<T> DerefMut for InvalidationStack<T> {
14117 fn deref_mut(&mut self) -> &mut Self::Target {
14118 &mut self.0
14119 }
14120}
14121
14122impl InvalidationRegion for SnippetState {
14123 fn ranges(&self) -> &[Range<Anchor>] {
14124 &self.ranges[self.active_index]
14125 }
14126}
14127
14128pub fn diagnostic_block_renderer(
14129 diagnostic: Diagnostic,
14130 max_message_rows: Option<u8>,
14131 allow_closing: bool,
14132 _is_valid: bool,
14133) -> RenderBlock {
14134 let (text_without_backticks, code_ranges) =
14135 highlight_diagnostic_message(&diagnostic, max_message_rows);
14136
14137 Box::new(move |cx: &mut BlockContext| {
14138 let group_id: SharedString = cx.block_id.to_string().into();
14139
14140 let mut text_style = cx.text_style().clone();
14141 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14142 let theme_settings = ThemeSettings::get_global(cx);
14143 text_style.font_family = theme_settings.buffer_font.family.clone();
14144 text_style.font_style = theme_settings.buffer_font.style;
14145 text_style.font_features = theme_settings.buffer_font.features.clone();
14146 text_style.font_weight = theme_settings.buffer_font.weight;
14147
14148 let multi_line_diagnostic = diagnostic.message.contains('\n');
14149
14150 let buttons = |diagnostic: &Diagnostic| {
14151 if multi_line_diagnostic {
14152 v_flex()
14153 } else {
14154 h_flex()
14155 }
14156 .when(allow_closing, |div| {
14157 div.children(diagnostic.is_primary.then(|| {
14158 IconButton::new("close-block", IconName::XCircle)
14159 .icon_color(Color::Muted)
14160 .size(ButtonSize::Compact)
14161 .style(ButtonStyle::Transparent)
14162 .visible_on_hover(group_id.clone())
14163 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14164 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14165 }))
14166 })
14167 .child(
14168 IconButton::new("copy-block", IconName::Copy)
14169 .icon_color(Color::Muted)
14170 .size(ButtonSize::Compact)
14171 .style(ButtonStyle::Transparent)
14172 .visible_on_hover(group_id.clone())
14173 .on_click({
14174 let message = diagnostic.message.clone();
14175 move |_click, cx| {
14176 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14177 }
14178 })
14179 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14180 )
14181 };
14182
14183 let icon_size = buttons(&diagnostic)
14184 .into_any_element()
14185 .layout_as_root(AvailableSpace::min_size(), cx);
14186
14187 h_flex()
14188 .id(cx.block_id)
14189 .group(group_id.clone())
14190 .relative()
14191 .size_full()
14192 .pl(cx.gutter_dimensions.width)
14193 .w(cx.max_width + cx.gutter_dimensions.width)
14194 .child(
14195 div()
14196 .flex()
14197 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14198 .flex_shrink(),
14199 )
14200 .child(buttons(&diagnostic))
14201 .child(div().flex().flex_shrink_0().child(
14202 StyledText::new(text_without_backticks.clone()).with_highlights(
14203 &text_style,
14204 code_ranges.iter().map(|range| {
14205 (
14206 range.clone(),
14207 HighlightStyle {
14208 font_weight: Some(FontWeight::BOLD),
14209 ..Default::default()
14210 },
14211 )
14212 }),
14213 ),
14214 ))
14215 .into_any_element()
14216 })
14217}
14218
14219pub fn highlight_diagnostic_message(
14220 diagnostic: &Diagnostic,
14221 mut max_message_rows: Option<u8>,
14222) -> (SharedString, Vec<Range<usize>>) {
14223 let mut text_without_backticks = String::new();
14224 let mut code_ranges = Vec::new();
14225
14226 if let Some(source) = &diagnostic.source {
14227 text_without_backticks.push_str(source);
14228 code_ranges.push(0..source.len());
14229 text_without_backticks.push_str(": ");
14230 }
14231
14232 let mut prev_offset = 0;
14233 let mut in_code_block = false;
14234 let has_row_limit = max_message_rows.is_some();
14235 let mut newline_indices = diagnostic
14236 .message
14237 .match_indices('\n')
14238 .filter(|_| has_row_limit)
14239 .map(|(ix, _)| ix)
14240 .fuse()
14241 .peekable();
14242
14243 for (quote_ix, _) in diagnostic
14244 .message
14245 .match_indices('`')
14246 .chain([(diagnostic.message.len(), "")])
14247 {
14248 let mut first_newline_ix = None;
14249 let mut last_newline_ix = None;
14250 while let Some(newline_ix) = newline_indices.peek() {
14251 if *newline_ix < quote_ix {
14252 if first_newline_ix.is_none() {
14253 first_newline_ix = Some(*newline_ix);
14254 }
14255 last_newline_ix = Some(*newline_ix);
14256
14257 if let Some(rows_left) = &mut max_message_rows {
14258 if *rows_left == 0 {
14259 break;
14260 } else {
14261 *rows_left -= 1;
14262 }
14263 }
14264 let _ = newline_indices.next();
14265 } else {
14266 break;
14267 }
14268 }
14269 let prev_len = text_without_backticks.len();
14270 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14271 text_without_backticks.push_str(new_text);
14272 if in_code_block {
14273 code_ranges.push(prev_len..text_without_backticks.len());
14274 }
14275 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14276 in_code_block = !in_code_block;
14277 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14278 text_without_backticks.push_str("...");
14279 break;
14280 }
14281 }
14282
14283 (text_without_backticks.into(), code_ranges)
14284}
14285
14286fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14287 match severity {
14288 DiagnosticSeverity::ERROR => colors.error,
14289 DiagnosticSeverity::WARNING => colors.warning,
14290 DiagnosticSeverity::INFORMATION => colors.info,
14291 DiagnosticSeverity::HINT => colors.info,
14292 _ => colors.ignored,
14293 }
14294}
14295
14296pub fn styled_runs_for_code_label<'a>(
14297 label: &'a CodeLabel,
14298 syntax_theme: &'a theme::SyntaxTheme,
14299) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14300 let fade_out = HighlightStyle {
14301 fade_out: Some(0.35),
14302 ..Default::default()
14303 };
14304
14305 let mut prev_end = label.filter_range.end;
14306 label
14307 .runs
14308 .iter()
14309 .enumerate()
14310 .flat_map(move |(ix, (range, highlight_id))| {
14311 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14312 style
14313 } else {
14314 return Default::default();
14315 };
14316 let mut muted_style = style;
14317 muted_style.highlight(fade_out);
14318
14319 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14320 if range.start >= label.filter_range.end {
14321 if range.start > prev_end {
14322 runs.push((prev_end..range.start, fade_out));
14323 }
14324 runs.push((range.clone(), muted_style));
14325 } else if range.end <= label.filter_range.end {
14326 runs.push((range.clone(), style));
14327 } else {
14328 runs.push((range.start..label.filter_range.end, style));
14329 runs.push((label.filter_range.end..range.end, muted_style));
14330 }
14331 prev_end = cmp::max(prev_end, range.end);
14332
14333 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14334 runs.push((prev_end..label.text.len(), fade_out));
14335 }
14336
14337 runs
14338 })
14339}
14340
14341pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14342 let mut prev_index = 0;
14343 let mut prev_codepoint: Option<char> = None;
14344 text.char_indices()
14345 .chain([(text.len(), '\0')])
14346 .filter_map(move |(index, codepoint)| {
14347 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14348 let is_boundary = index == text.len()
14349 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14350 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14351 if is_boundary {
14352 let chunk = &text[prev_index..index];
14353 prev_index = index;
14354 Some(chunk)
14355 } else {
14356 None
14357 }
14358 })
14359}
14360
14361pub trait RangeToAnchorExt: Sized {
14362 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14363
14364 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14365 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14366 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14367 }
14368}
14369
14370impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14371 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14372 let start_offset = self.start.to_offset(snapshot);
14373 let end_offset = self.end.to_offset(snapshot);
14374 if start_offset == end_offset {
14375 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14376 } else {
14377 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14378 }
14379 }
14380}
14381
14382pub trait RowExt {
14383 fn as_f32(&self) -> f32;
14384
14385 fn next_row(&self) -> Self;
14386
14387 fn previous_row(&self) -> Self;
14388
14389 fn minus(&self, other: Self) -> u32;
14390}
14391
14392impl RowExt for DisplayRow {
14393 fn as_f32(&self) -> f32 {
14394 self.0 as f32
14395 }
14396
14397 fn next_row(&self) -> Self {
14398 Self(self.0 + 1)
14399 }
14400
14401 fn previous_row(&self) -> Self {
14402 Self(self.0.saturating_sub(1))
14403 }
14404
14405 fn minus(&self, other: Self) -> u32 {
14406 self.0 - other.0
14407 }
14408}
14409
14410impl RowExt for MultiBufferRow {
14411 fn as_f32(&self) -> f32 {
14412 self.0 as f32
14413 }
14414
14415 fn next_row(&self) -> Self {
14416 Self(self.0 + 1)
14417 }
14418
14419 fn previous_row(&self) -> Self {
14420 Self(self.0.saturating_sub(1))
14421 }
14422
14423 fn minus(&self, other: Self) -> u32 {
14424 self.0 - other.0
14425 }
14426}
14427
14428trait RowRangeExt {
14429 type Row;
14430
14431 fn len(&self) -> usize;
14432
14433 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14434}
14435
14436impl RowRangeExt for Range<MultiBufferRow> {
14437 type Row = MultiBufferRow;
14438
14439 fn len(&self) -> usize {
14440 (self.end.0 - self.start.0) as usize
14441 }
14442
14443 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14444 (self.start.0..self.end.0).map(MultiBufferRow)
14445 }
14446}
14447
14448impl RowRangeExt for Range<DisplayRow> {
14449 type Row = DisplayRow;
14450
14451 fn len(&self) -> usize {
14452 (self.end.0 - self.start.0) as usize
14453 }
14454
14455 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14456 (self.start.0..self.end.0).map(DisplayRow)
14457 }
14458}
14459
14460fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14461 if hunk.diff_base_byte_range.is_empty() {
14462 DiffHunkStatus::Added
14463 } else if hunk.row_range.is_empty() {
14464 DiffHunkStatus::Removed
14465 } else {
14466 DiffHunkStatus::Modified
14467 }
14468}
14469
14470/// If select range has more than one line, we
14471/// just point the cursor to range.start.
14472fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14473 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14474 range
14475 } else {
14476 range.start..range.start
14477 }
14478}