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 // hello
227
228 let mut links = Vec::new();
229 let mut link_ranges = Vec::new();
230 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
231 if let Some(link) = region.link.clone() {
232 links.push(link);
233 link_ranges.push(range.clone());
234 }
235 }
236
237 InteractiveText::new(
238 element_id,
239 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
240 )
241 .on_click(link_ranges, move |clicked_range_ix, cx| {
242 match &links[clicked_range_ix] {
243 markdown::Link::Web { url } => cx.open_url(url),
244 markdown::Link::Path { path } => {
245 if let Some(workspace) = &workspace {
246 _ = workspace.update(cx, |workspace, cx| {
247 workspace.open_abs_path(path.clone(), false, cx).detach();
248 });
249 }
250 }
251 }
252 })
253}
254
255#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
256pub(crate) enum InlayId {
257 Suggestion(usize),
258 Hint(usize),
259}
260
261impl InlayId {
262 fn id(&self) -> usize {
263 match self {
264 Self::Suggestion(id) => *id,
265 Self::Hint(id) => *id,
266 }
267 }
268}
269
270enum DiffRowHighlight {}
271enum DocumentHighlightRead {}
272enum DocumentHighlightWrite {}
273enum InputComposition {}
274
275#[derive(Copy, Clone, PartialEq, Eq)]
276pub enum Direction {
277 Prev,
278 Next,
279}
280
281#[derive(Debug, Copy, Clone, PartialEq, Eq)]
282pub enum Navigated {
283 Yes,
284 No,
285}
286
287impl Navigated {
288 pub fn from_bool(yes: bool) -> Navigated {
289 if yes {
290 Navigated::Yes
291 } else {
292 Navigated::No
293 }
294 }
295}
296
297pub fn init_settings(cx: &mut AppContext) {
298 EditorSettings::register(cx);
299}
300
301pub fn init(cx: &mut AppContext) {
302 init_settings(cx);
303
304 workspace::register_project_item::<Editor>(cx);
305 workspace::FollowableViewRegistry::register::<Editor>(cx);
306 workspace::register_serializable_item::<Editor>(cx);
307
308 cx.observe_new_views(
309 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
310 workspace.register_action(Editor::new_file);
311 workspace.register_action(Editor::new_file_vertical);
312 workspace.register_action(Editor::new_file_horizontal);
313 },
314 )
315 .detach();
316
317 cx.on_action(move |_: &workspace::NewFile, cx| {
318 let app_state = workspace::AppState::global(cx);
319 if let Some(app_state) = app_state.upgrade() {
320 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
321 Editor::new_file(workspace, &Default::default(), cx)
322 })
323 .detach();
324 }
325 });
326 cx.on_action(move |_: &workspace::NewWindow, cx| {
327 let app_state = workspace::AppState::global(cx);
328 if let Some(app_state) = app_state.upgrade() {
329 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
330 Editor::new_file(workspace, &Default::default(), cx)
331 })
332 .detach();
333 }
334 });
335}
336
337pub struct SearchWithinRange;
338
339trait InvalidationRegion {
340 fn ranges(&self) -> &[Range<Anchor>];
341}
342
343#[derive(Clone, Debug, PartialEq)]
344pub enum SelectPhase {
345 Begin {
346 position: DisplayPoint,
347 add: bool,
348 click_count: usize,
349 },
350 BeginColumnar {
351 position: DisplayPoint,
352 reset: bool,
353 goal_column: u32,
354 },
355 Extend {
356 position: DisplayPoint,
357 click_count: usize,
358 },
359 Update {
360 position: DisplayPoint,
361 goal_column: u32,
362 scroll_delta: gpui::Point<f32>,
363 },
364 End,
365}
366
367#[derive(Clone, Debug)]
368pub enum SelectMode {
369 Character,
370 Word(Range<Anchor>),
371 Line(Range<Anchor>),
372 All,
373}
374
375#[derive(Copy, Clone, PartialEq, Eq, Debug)]
376pub enum EditorMode {
377 SingleLine { auto_width: bool },
378 AutoHeight { max_lines: usize },
379 Full,
380}
381
382#[derive(Copy, Clone, Debug)]
383pub enum SoftWrap {
384 /// Prefer not to wrap at all.
385 ///
386 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
387 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
388 GitDiff,
389 /// Prefer a single line generally, unless an overly long line is encountered.
390 None,
391 /// Soft wrap lines that exceed the editor width.
392 EditorWidth,
393 /// Soft wrap lines at the preferred line length.
394 Column(u32),
395 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
396 Bounded(u32),
397}
398
399#[derive(Clone)]
400pub struct EditorStyle {
401 pub background: Hsla,
402 pub local_player: PlayerColor,
403 pub text: TextStyle,
404 pub scrollbar_width: Pixels,
405 pub syntax: Arc<SyntaxTheme>,
406 pub status: StatusColors,
407 pub inlay_hints_style: HighlightStyle,
408 pub suggestions_style: HighlightStyle,
409 pub unnecessary_code_fade: f32,
410}
411
412impl Default for EditorStyle {
413 fn default() -> Self {
414 Self {
415 background: Hsla::default(),
416 local_player: PlayerColor::default(),
417 text: TextStyle::default(),
418 scrollbar_width: Pixels::default(),
419 syntax: Default::default(),
420 // HACK: Status colors don't have a real default.
421 // We should look into removing the status colors from the editor
422 // style and retrieve them directly from the theme.
423 status: StatusColors::dark(),
424 inlay_hints_style: HighlightStyle::default(),
425 suggestions_style: HighlightStyle::default(),
426 unnecessary_code_fade: Default::default(),
427 }
428 }
429}
430
431pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
432 let show_background = language_settings::language_settings(None, None, cx)
433 .inlay_hints
434 .show_background;
435
436 HighlightStyle {
437 color: Some(cx.theme().status().hint),
438 background_color: show_background.then(|| cx.theme().status().hint_background),
439 ..HighlightStyle::default()
440 }
441}
442
443type CompletionId = usize;
444
445#[derive(Clone, Debug)]
446struct CompletionState {
447 // render_inlay_ids represents the inlay hints that are inserted
448 // for rendering the inline completions. They may be discontinuous
449 // in the event that the completion provider returns some intersection
450 // with the existing content.
451 render_inlay_ids: Vec<InlayId>,
452 // text is the resulting rope that is inserted when the user accepts a completion.
453 text: Rope,
454 // position is the position of the cursor when the completion was triggered.
455 position: multi_buffer::Anchor,
456 // delete_range is the range of text that this completion state covers.
457 // if the completion is accepted, this range should be deleted.
458 delete_range: Option<Range<multi_buffer::Anchor>>,
459}
460
461#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
462struct EditorActionId(usize);
463
464impl EditorActionId {
465 pub fn post_inc(&mut self) -> Self {
466 let answer = self.0;
467
468 *self = Self(answer + 1);
469
470 Self(answer)
471 }
472}
473
474// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
475// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
476
477type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
478type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
479
480#[derive(Default)]
481struct ScrollbarMarkerState {
482 scrollbar_size: Size<Pixels>,
483 dirty: bool,
484 markers: Arc<[PaintQuad]>,
485 pending_refresh: Option<Task<Result<()>>>,
486}
487
488impl ScrollbarMarkerState {
489 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
490 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
491 }
492}
493
494#[derive(Clone, Debug)]
495struct RunnableTasks {
496 templates: Vec<(TaskSourceKind, TaskTemplate)>,
497 offset: MultiBufferOffset,
498 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
499 column: u32,
500 // Values of all named captures, including those starting with '_'
501 extra_variables: HashMap<String, String>,
502 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
503 context_range: Range<BufferOffset>,
504}
505
506#[derive(Clone)]
507struct ResolvedTasks {
508 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
509 position: Anchor,
510}
511#[derive(Copy, Clone, Debug)]
512struct MultiBufferOffset(usize);
513#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
514struct BufferOffset(usize);
515
516// Addons allow storing per-editor state in other crates (e.g. Vim)
517pub trait Addon: 'static {
518 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
519
520 fn to_any(&self) -> &dyn std::any::Any;
521}
522
523/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
524///
525/// See the [module level documentation](self) for more information.
526pub struct Editor {
527 focus_handle: FocusHandle,
528 last_focused_descendant: Option<WeakFocusHandle>,
529 /// The text buffer being edited
530 buffer: Model<MultiBuffer>,
531 /// Map of how text in the buffer should be displayed.
532 /// Handles soft wraps, folds, fake inlay text insertions, etc.
533 pub display_map: Model<DisplayMap>,
534 pub selections: SelectionsCollection,
535 pub scroll_manager: ScrollManager,
536 /// When inline assist editors are linked, they all render cursors because
537 /// typing enters text into each of them, even the ones that aren't focused.
538 pub(crate) show_cursor_when_unfocused: bool,
539 columnar_selection_tail: Option<Anchor>,
540 add_selections_state: Option<AddSelectionsState>,
541 select_next_state: Option<SelectNextState>,
542 select_prev_state: Option<SelectNextState>,
543 selection_history: SelectionHistory,
544 autoclose_regions: Vec<AutocloseRegion>,
545 snippet_stack: InvalidationStack<SnippetState>,
546 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
547 ime_transaction: Option<TransactionId>,
548 active_diagnostics: Option<ActiveDiagnosticGroup>,
549 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
550
551 project: Option<Model<Project>>,
552 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
553 completion_provider: Option<Box<dyn CompletionProvider>>,
554 collaboration_hub: Option<Box<dyn CollaborationHub>>,
555 blink_manager: Model<BlinkManager>,
556 show_cursor_names: bool,
557 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
558 pub show_local_selections: bool,
559 mode: EditorMode,
560 show_breadcrumbs: bool,
561 show_gutter: bool,
562 show_line_numbers: Option<bool>,
563 use_relative_line_numbers: Option<bool>,
564 show_git_diff_gutter: Option<bool>,
565 show_code_actions: Option<bool>,
566 show_runnables: Option<bool>,
567 show_wrap_guides: Option<bool>,
568 show_indent_guides: Option<bool>,
569 placeholder_text: Option<Arc<str>>,
570 highlight_order: usize,
571 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
572 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
573 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
574 scrollbar_marker_state: ScrollbarMarkerState,
575 active_indent_guides_state: ActiveIndentGuidesState,
576 nav_history: Option<ItemNavHistory>,
577 context_menu: RwLock<Option<ContextMenu>>,
578 mouse_context_menu: Option<MouseContextMenu>,
579 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
580 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
581 signature_help_state: SignatureHelpState,
582 auto_signature_help: Option<bool>,
583 find_all_references_task_sources: Vec<Anchor>,
584 next_completion_id: CompletionId,
585 completion_documentation_pre_resolve_debounce: DebouncedDelay,
586 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
587 code_actions_task: Option<Task<Result<()>>>,
588 document_highlights_task: Option<Task<()>>,
589 linked_editing_range_task: Option<Task<Option<()>>>,
590 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
591 pending_rename: Option<RenameState>,
592 searchable: bool,
593 cursor_shape: CursorShape,
594 current_line_highlight: Option<CurrentLineHighlight>,
595 collapse_matches: bool,
596 autoindent_mode: Option<AutoindentMode>,
597 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
598 input_enabled: bool,
599 use_modal_editing: bool,
600 read_only: bool,
601 leader_peer_id: Option<PeerId>,
602 remote_id: Option<ViewId>,
603 hover_state: HoverState,
604 gutter_hovered: bool,
605 hovered_link_state: Option<HoveredLinkState>,
606 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
607 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
608 active_inline_completion: Option<CompletionState>,
609 // enable_inline_completions is a switch that Vim can use to disable
610 // inline completions based on its mode.
611 enable_inline_completions: bool,
612 show_inline_completions_override: Option<bool>,
613 inlay_hint_cache: InlayHintCache,
614 expanded_hunks: ExpandedHunks,
615 next_inlay_id: usize,
616 _subscriptions: Vec<Subscription>,
617 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
618 gutter_dimensions: GutterDimensions,
619 style: Option<EditorStyle>,
620 text_style_refinement: Option<TextStyleRefinement>,
621 next_editor_action_id: EditorActionId,
622 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
623 use_autoclose: bool,
624 use_auto_surround: bool,
625 auto_replace_emoji_shortcode: bool,
626 show_git_blame_gutter: bool,
627 show_git_blame_inline: bool,
628 show_git_blame_inline_delay_task: Option<Task<()>>,
629 git_blame_inline_enabled: bool,
630 serialize_dirty_buffers: bool,
631 show_selection_menu: Option<bool>,
632 blame: Option<Model<GitBlame>>,
633 blame_subscription: Option<Subscription>,
634 custom_context_menu: Option<
635 Box<
636 dyn 'static
637 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
638 >,
639 >,
640 last_bounds: Option<Bounds<Pixels>>,
641 expect_bounds_change: Option<Bounds<Pixels>>,
642 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
643 tasks_update_task: Option<Task<()>>,
644 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
645 breadcrumb_header: Option<String>,
646 focused_block: Option<FocusedBlock>,
647 next_scroll_position: NextScrollCursorCenterTopBottom,
648 addons: HashMap<TypeId, Box<dyn Addon>>,
649 _scroll_cursor_center_top_bottom_task: Task<()>,
650}
651
652#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
653enum NextScrollCursorCenterTopBottom {
654 #[default]
655 Center,
656 Top,
657 Bottom,
658}
659
660impl NextScrollCursorCenterTopBottom {
661 fn next(&self) -> Self {
662 match self {
663 Self::Center => Self::Top,
664 Self::Top => Self::Bottom,
665 Self::Bottom => Self::Center,
666 }
667 }
668}
669
670#[derive(Clone)]
671pub struct EditorSnapshot {
672 pub mode: EditorMode,
673 show_gutter: bool,
674 show_line_numbers: Option<bool>,
675 show_git_diff_gutter: Option<bool>,
676 show_code_actions: Option<bool>,
677 show_runnables: Option<bool>,
678 git_blame_gutter_max_author_length: Option<usize>,
679 pub display_snapshot: DisplaySnapshot,
680 pub placeholder_text: Option<Arc<str>>,
681 is_focused: bool,
682 scroll_anchor: ScrollAnchor,
683 ongoing_scroll: OngoingScroll,
684 current_line_highlight: CurrentLineHighlight,
685 gutter_hovered: bool,
686}
687
688const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
689
690#[derive(Default, Debug, Clone, Copy)]
691pub struct GutterDimensions {
692 pub left_padding: Pixels,
693 pub right_padding: Pixels,
694 pub width: Pixels,
695 pub margin: Pixels,
696 pub git_blame_entries_width: Option<Pixels>,
697}
698
699impl GutterDimensions {
700 /// The full width of the space taken up by the gutter.
701 pub fn full_width(&self) -> Pixels {
702 self.margin + self.width
703 }
704
705 /// The width of the space reserved for the fold indicators,
706 /// use alongside 'justify_end' and `gutter_width` to
707 /// right align content with the line numbers
708 pub fn fold_area_width(&self) -> Pixels {
709 self.margin + self.right_padding
710 }
711}
712
713#[derive(Debug)]
714pub struct RemoteSelection {
715 pub replica_id: ReplicaId,
716 pub selection: Selection<Anchor>,
717 pub cursor_shape: CursorShape,
718 pub peer_id: PeerId,
719 pub line_mode: bool,
720 pub participant_index: Option<ParticipantIndex>,
721 pub user_name: Option<SharedString>,
722}
723
724#[derive(Clone, Debug)]
725struct SelectionHistoryEntry {
726 selections: Arc<[Selection<Anchor>]>,
727 select_next_state: Option<SelectNextState>,
728 select_prev_state: Option<SelectNextState>,
729 add_selections_state: Option<AddSelectionsState>,
730}
731
732enum SelectionHistoryMode {
733 Normal,
734 Undoing,
735 Redoing,
736}
737
738#[derive(Clone, PartialEq, Eq, Hash)]
739struct HoveredCursor {
740 replica_id: u16,
741 selection_id: usize,
742}
743
744impl Default for SelectionHistoryMode {
745 fn default() -> Self {
746 Self::Normal
747 }
748}
749
750#[derive(Default)]
751struct SelectionHistory {
752 #[allow(clippy::type_complexity)]
753 selections_by_transaction:
754 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
755 mode: SelectionHistoryMode,
756 undo_stack: VecDeque<SelectionHistoryEntry>,
757 redo_stack: VecDeque<SelectionHistoryEntry>,
758}
759
760impl SelectionHistory {
761 fn insert_transaction(
762 &mut self,
763 transaction_id: TransactionId,
764 selections: Arc<[Selection<Anchor>]>,
765 ) {
766 self.selections_by_transaction
767 .insert(transaction_id, (selections, None));
768 }
769
770 #[allow(clippy::type_complexity)]
771 fn transaction(
772 &self,
773 transaction_id: TransactionId,
774 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
775 self.selections_by_transaction.get(&transaction_id)
776 }
777
778 #[allow(clippy::type_complexity)]
779 fn transaction_mut(
780 &mut self,
781 transaction_id: TransactionId,
782 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
783 self.selections_by_transaction.get_mut(&transaction_id)
784 }
785
786 fn push(&mut self, entry: SelectionHistoryEntry) {
787 if !entry.selections.is_empty() {
788 match self.mode {
789 SelectionHistoryMode::Normal => {
790 self.push_undo(entry);
791 self.redo_stack.clear();
792 }
793 SelectionHistoryMode::Undoing => self.push_redo(entry),
794 SelectionHistoryMode::Redoing => self.push_undo(entry),
795 }
796 }
797 }
798
799 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
800 if self
801 .undo_stack
802 .back()
803 .map_or(true, |e| e.selections != entry.selections)
804 {
805 self.undo_stack.push_back(entry);
806 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
807 self.undo_stack.pop_front();
808 }
809 }
810 }
811
812 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
813 if self
814 .redo_stack
815 .back()
816 .map_or(true, |e| e.selections != entry.selections)
817 {
818 self.redo_stack.push_back(entry);
819 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
820 self.redo_stack.pop_front();
821 }
822 }
823 }
824}
825
826struct RowHighlight {
827 index: usize,
828 range: Range<Anchor>,
829 color: Hsla,
830 should_autoscroll: bool,
831}
832
833#[derive(Clone, Debug)]
834struct AddSelectionsState {
835 above: bool,
836 stack: Vec<usize>,
837}
838
839#[derive(Clone)]
840struct SelectNextState {
841 query: AhoCorasick,
842 wordwise: bool,
843 done: bool,
844}
845
846impl std::fmt::Debug for SelectNextState {
847 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
848 f.debug_struct(std::any::type_name::<Self>())
849 .field("wordwise", &self.wordwise)
850 .field("done", &self.done)
851 .finish()
852 }
853}
854
855#[derive(Debug)]
856struct AutocloseRegion {
857 selection_id: usize,
858 range: Range<Anchor>,
859 pair: BracketPair,
860}
861
862#[derive(Debug)]
863struct SnippetState {
864 ranges: Vec<Vec<Range<Anchor>>>,
865 active_index: usize,
866}
867
868#[doc(hidden)]
869pub struct RenameState {
870 pub range: Range<Anchor>,
871 pub old_name: Arc<str>,
872 pub editor: View<Editor>,
873 block_id: CustomBlockId,
874}
875
876struct InvalidationStack<T>(Vec<T>);
877
878struct RegisteredInlineCompletionProvider {
879 provider: Arc<dyn InlineCompletionProviderHandle>,
880 _subscription: Subscription,
881}
882
883enum ContextMenu {
884 Completions(CompletionsMenu),
885 CodeActions(CodeActionsMenu),
886}
887
888impl ContextMenu {
889 fn select_first(
890 &mut self,
891 provider: Option<&dyn CompletionProvider>,
892 cx: &mut ViewContext<Editor>,
893 ) -> bool {
894 if self.visible() {
895 match self {
896 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
897 ContextMenu::CodeActions(menu) => menu.select_first(cx),
898 }
899 true
900 } else {
901 false
902 }
903 }
904
905 fn select_prev(
906 &mut self,
907 provider: Option<&dyn CompletionProvider>,
908 cx: &mut ViewContext<Editor>,
909 ) -> bool {
910 if self.visible() {
911 match self {
912 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
913 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
914 }
915 true
916 } else {
917 false
918 }
919 }
920
921 fn select_next(
922 &mut self,
923 provider: Option<&dyn CompletionProvider>,
924 cx: &mut ViewContext<Editor>,
925 ) -> bool {
926 if self.visible() {
927 match self {
928 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
929 ContextMenu::CodeActions(menu) => menu.select_next(cx),
930 }
931 true
932 } else {
933 false
934 }
935 }
936
937 fn select_last(
938 &mut self,
939 provider: Option<&dyn CompletionProvider>,
940 cx: &mut ViewContext<Editor>,
941 ) -> bool {
942 if self.visible() {
943 match self {
944 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
945 ContextMenu::CodeActions(menu) => menu.select_last(cx),
946 }
947 true
948 } else {
949 false
950 }
951 }
952
953 fn visible(&self) -> bool {
954 match self {
955 ContextMenu::Completions(menu) => menu.visible(),
956 ContextMenu::CodeActions(menu) => menu.visible(),
957 }
958 }
959
960 fn render(
961 &self,
962 cursor_position: DisplayPoint,
963 style: &EditorStyle,
964 max_height: Pixels,
965 workspace: Option<WeakView<Workspace>>,
966 cx: &mut ViewContext<Editor>,
967 ) -> (ContextMenuOrigin, AnyElement) {
968 match self {
969 ContextMenu::Completions(menu) => (
970 ContextMenuOrigin::EditorPoint(cursor_position),
971 menu.render(style, max_height, workspace, cx),
972 ),
973 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
974 }
975 }
976}
977
978enum ContextMenuOrigin {
979 EditorPoint(DisplayPoint),
980 GutterIndicator(DisplayRow),
981}
982
983#[derive(Clone)]
984struct CompletionsMenu {
985 id: CompletionId,
986 sort_completions: bool,
987 initial_position: Anchor,
988 buffer: Model<Buffer>,
989 completions: Arc<RwLock<Box<[Completion]>>>,
990 match_candidates: Arc<[StringMatchCandidate]>,
991 matches: Arc<[StringMatch]>,
992 selected_item: usize,
993 scroll_handle: UniformListScrollHandle,
994 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
995}
996
997impl CompletionsMenu {
998 fn select_first(
999 &mut self,
1000 provider: Option<&dyn CompletionProvider>,
1001 cx: &mut ViewContext<Editor>,
1002 ) {
1003 self.selected_item = 0;
1004 self.scroll_handle.scroll_to_item(self.selected_item);
1005 self.attempt_resolve_selected_completion_documentation(provider, cx);
1006 cx.notify();
1007 }
1008
1009 fn select_prev(
1010 &mut self,
1011 provider: Option<&dyn CompletionProvider>,
1012 cx: &mut ViewContext<Editor>,
1013 ) {
1014 if self.selected_item > 0 {
1015 self.selected_item -= 1;
1016 } else {
1017 self.selected_item = self.matches.len() - 1;
1018 }
1019 self.scroll_handle.scroll_to_item(self.selected_item);
1020 self.attempt_resolve_selected_completion_documentation(provider, cx);
1021 cx.notify();
1022 }
1023
1024 fn select_next(
1025 &mut self,
1026 provider: Option<&dyn CompletionProvider>,
1027 cx: &mut ViewContext<Editor>,
1028 ) {
1029 if self.selected_item + 1 < self.matches.len() {
1030 self.selected_item += 1;
1031 } else {
1032 self.selected_item = 0;
1033 }
1034 self.scroll_handle.scroll_to_item(self.selected_item);
1035 self.attempt_resolve_selected_completion_documentation(provider, cx);
1036 cx.notify();
1037 }
1038
1039 fn select_last(
1040 &mut self,
1041 provider: Option<&dyn CompletionProvider>,
1042 cx: &mut ViewContext<Editor>,
1043 ) {
1044 self.selected_item = self.matches.len() - 1;
1045 self.scroll_handle.scroll_to_item(self.selected_item);
1046 self.attempt_resolve_selected_completion_documentation(provider, cx);
1047 cx.notify();
1048 }
1049
1050 fn pre_resolve_completion_documentation(
1051 buffer: Model<Buffer>,
1052 completions: Arc<RwLock<Box<[Completion]>>>,
1053 matches: Arc<[StringMatch]>,
1054 editor: &Editor,
1055 cx: &mut ViewContext<Editor>,
1056 ) -> Task<()> {
1057 let settings = EditorSettings::get_global(cx);
1058 if !settings.show_completion_documentation {
1059 return Task::ready(());
1060 }
1061
1062 let Some(provider) = editor.completion_provider.as_ref() else {
1063 return Task::ready(());
1064 };
1065
1066 let resolve_task = provider.resolve_completions(
1067 buffer,
1068 matches.iter().map(|m| m.candidate_id).collect(),
1069 completions.clone(),
1070 cx,
1071 );
1072
1073 cx.spawn(move |this, mut cx| async move {
1074 if let Some(true) = resolve_task.await.log_err() {
1075 this.update(&mut cx, |_, cx| cx.notify()).ok();
1076 }
1077 })
1078 }
1079
1080 fn attempt_resolve_selected_completion_documentation(
1081 &mut self,
1082 provider: Option<&dyn CompletionProvider>,
1083 cx: &mut ViewContext<Editor>,
1084 ) {
1085 let settings = EditorSettings::get_global(cx);
1086 if !settings.show_completion_documentation {
1087 return;
1088 }
1089
1090 let completion_index = self.matches[self.selected_item].candidate_id;
1091 let Some(provider) = provider else {
1092 return;
1093 };
1094
1095 let resolve_task = provider.resolve_completions(
1096 self.buffer.clone(),
1097 vec![completion_index],
1098 self.completions.clone(),
1099 cx,
1100 );
1101
1102 let delay_ms =
1103 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1104 let delay = Duration::from_millis(delay_ms);
1105
1106 self.selected_completion_documentation_resolve_debounce
1107 .lock()
1108 .fire_new(delay, cx, |_, cx| {
1109 cx.spawn(move |this, mut cx| async move {
1110 if let Some(true) = resolve_task.await.log_err() {
1111 this.update(&mut cx, |_, cx| cx.notify()).ok();
1112 }
1113 })
1114 });
1115 }
1116
1117 fn visible(&self) -> bool {
1118 !self.matches.is_empty()
1119 }
1120
1121 fn render(
1122 &self,
1123 style: &EditorStyle,
1124 max_height: Pixels,
1125 workspace: Option<WeakView<Workspace>>,
1126 cx: &mut ViewContext<Editor>,
1127 ) -> AnyElement {
1128 let settings = EditorSettings::get_global(cx);
1129 let show_completion_documentation = settings.show_completion_documentation;
1130
1131 let widest_completion_ix = self
1132 .matches
1133 .iter()
1134 .enumerate()
1135 .max_by_key(|(_, mat)| {
1136 let completions = self.completions.read();
1137 let completion = &completions[mat.candidate_id];
1138 let documentation = &completion.documentation;
1139
1140 let mut len = completion.label.text.chars().count();
1141 if let Some(Documentation::SingleLine(text)) = documentation {
1142 if show_completion_documentation {
1143 len += text.chars().count();
1144 }
1145 }
1146
1147 len
1148 })
1149 .map(|(ix, _)| ix);
1150
1151 let completions = self.completions.clone();
1152 let matches = self.matches.clone();
1153 let selected_item = self.selected_item;
1154 let style = style.clone();
1155
1156 let multiline_docs = if show_completion_documentation {
1157 let mat = &self.matches[selected_item];
1158 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1159 Some(Documentation::MultiLinePlainText(text)) => {
1160 Some(div().child(SharedString::from(text.clone())))
1161 }
1162 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1163 Some(div().child(render_parsed_markdown(
1164 "completions_markdown",
1165 parsed,
1166 &style,
1167 workspace,
1168 cx,
1169 )))
1170 }
1171 _ => None,
1172 };
1173 multiline_docs.map(|div| {
1174 div.id("multiline_docs")
1175 .max_h(max_height)
1176 .flex_1()
1177 .px_1p5()
1178 .py_1()
1179 .min_w(px(260.))
1180 .max_w(px(640.))
1181 .w(px(500.))
1182 .overflow_y_scroll()
1183 .occlude()
1184 })
1185 } else {
1186 None
1187 };
1188
1189 let list = uniform_list(
1190 cx.view().clone(),
1191 "completions",
1192 matches.len(),
1193 move |_editor, range, cx| {
1194 let start_ix = range.start;
1195 let completions_guard = completions.read();
1196
1197 matches[range]
1198 .iter()
1199 .enumerate()
1200 .map(|(ix, mat)| {
1201 let item_ix = start_ix + ix;
1202 let candidate_id = mat.candidate_id;
1203 let completion = &completions_guard[candidate_id];
1204
1205 let documentation = if show_completion_documentation {
1206 &completion.documentation
1207 } else {
1208 &None
1209 };
1210
1211 let highlights = gpui::combine_highlights(
1212 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1213 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1214 |(range, mut highlight)| {
1215 // Ignore font weight for syntax highlighting, as we'll use it
1216 // for fuzzy matches.
1217 highlight.font_weight = None;
1218
1219 if completion.lsp_completion.deprecated.unwrap_or(false) {
1220 highlight.strikethrough = Some(StrikethroughStyle {
1221 thickness: 1.0.into(),
1222 ..Default::default()
1223 });
1224 highlight.color = Some(cx.theme().colors().text_muted);
1225 }
1226
1227 (range, highlight)
1228 },
1229 ),
1230 );
1231 let completion_label = StyledText::new(completion.label.text.clone())
1232 .with_highlights(&style.text, highlights);
1233 let documentation_label =
1234 if let Some(Documentation::SingleLine(text)) = documentation {
1235 if text.trim().is_empty() {
1236 None
1237 } else {
1238 Some(
1239 Label::new(text.clone())
1240 .ml_4()
1241 .size(LabelSize::Small)
1242 .color(Color::Muted),
1243 )
1244 }
1245 } else {
1246 None
1247 };
1248
1249 let color_swatch = completion
1250 .color()
1251 .map(|color| div().size_4().bg(color).rounded_sm());
1252
1253 div().min_w(px(220.)).max_w(px(540.)).child(
1254 ListItem::new(mat.candidate_id)
1255 .inset(true)
1256 .selected(item_ix == selected_item)
1257 .on_click(cx.listener(move |editor, _event, cx| {
1258 cx.stop_propagation();
1259 if let Some(task) = editor.confirm_completion(
1260 &ConfirmCompletion {
1261 item_ix: Some(item_ix),
1262 },
1263 cx,
1264 ) {
1265 task.detach_and_log_err(cx)
1266 }
1267 }))
1268 .start_slot::<Div>(color_swatch)
1269 .child(h_flex().overflow_hidden().child(completion_label))
1270 .end_slot::<Label>(documentation_label),
1271 )
1272 })
1273 .collect()
1274 },
1275 )
1276 .occlude()
1277 .max_h(max_height)
1278 .track_scroll(self.scroll_handle.clone())
1279 .with_width_from_item(widest_completion_ix)
1280 .with_sizing_behavior(ListSizingBehavior::Infer);
1281
1282 Popover::new()
1283 .child(list)
1284 .when_some(multiline_docs, |popover, multiline_docs| {
1285 popover.aside(multiline_docs)
1286 })
1287 .into_any_element()
1288 }
1289
1290 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1291 let mut matches = if let Some(query) = query {
1292 fuzzy::match_strings(
1293 &self.match_candidates,
1294 query,
1295 query.chars().any(|c| c.is_uppercase()),
1296 100,
1297 &Default::default(),
1298 executor,
1299 )
1300 .await
1301 } else {
1302 self.match_candidates
1303 .iter()
1304 .enumerate()
1305 .map(|(candidate_id, candidate)| StringMatch {
1306 candidate_id,
1307 score: Default::default(),
1308 positions: Default::default(),
1309 string: candidate.string.clone(),
1310 })
1311 .collect()
1312 };
1313
1314 // Remove all candidates where the query's start does not match the start of any word in the candidate
1315 if let Some(query) = query {
1316 if let Some(query_start) = query.chars().next() {
1317 matches.retain(|string_match| {
1318 split_words(&string_match.string).any(|word| {
1319 // Check that the first codepoint of the word as lowercase matches the first
1320 // codepoint of the query as lowercase
1321 word.chars()
1322 .flat_map(|codepoint| codepoint.to_lowercase())
1323 .zip(query_start.to_lowercase())
1324 .all(|(word_cp, query_cp)| word_cp == query_cp)
1325 })
1326 });
1327 }
1328 }
1329
1330 let completions = self.completions.read();
1331 if self.sort_completions {
1332 matches.sort_unstable_by_key(|mat| {
1333 // We do want to strike a balance here between what the language server tells us
1334 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1335 // `Creat` and there is a local variable called `CreateComponent`).
1336 // So what we do is: we bucket all matches into two buckets
1337 // - Strong matches
1338 // - Weak matches
1339 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1340 // and the Weak matches are the rest.
1341 //
1342 // For the strong matches, we sort by the language-servers score first and for the weak
1343 // matches, we prefer our fuzzy finder first.
1344 //
1345 // The thinking behind that: it's useless to take the sort_text the language-server gives
1346 // us into account when it's obviously a bad match.
1347
1348 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1349 enum MatchScore<'a> {
1350 Strong {
1351 sort_text: Option<&'a str>,
1352 score: Reverse<OrderedFloat<f64>>,
1353 sort_key: (usize, &'a str),
1354 },
1355 Weak {
1356 score: Reverse<OrderedFloat<f64>>,
1357 sort_text: Option<&'a str>,
1358 sort_key: (usize, &'a str),
1359 },
1360 }
1361
1362 let completion = &completions[mat.candidate_id];
1363 let sort_key = completion.sort_key();
1364 let sort_text = completion.lsp_completion.sort_text.as_deref();
1365 let score = Reverse(OrderedFloat(mat.score));
1366
1367 if mat.score >= 0.2 {
1368 MatchScore::Strong {
1369 sort_text,
1370 score,
1371 sort_key,
1372 }
1373 } else {
1374 MatchScore::Weak {
1375 score,
1376 sort_text,
1377 sort_key,
1378 }
1379 }
1380 });
1381 }
1382
1383 for mat in &mut matches {
1384 let completion = &completions[mat.candidate_id];
1385 mat.string.clone_from(&completion.label.text);
1386 for position in &mut mat.positions {
1387 *position += completion.label.filter_range.start;
1388 }
1389 }
1390 drop(completions);
1391
1392 self.matches = matches.into();
1393 self.selected_item = 0;
1394 }
1395}
1396
1397struct AvailableCodeAction {
1398 excerpt_id: ExcerptId,
1399 action: CodeAction,
1400 provider: Arc<dyn CodeActionProvider>,
1401}
1402
1403#[derive(Clone)]
1404struct CodeActionContents {
1405 tasks: Option<Arc<ResolvedTasks>>,
1406 actions: Option<Arc<[AvailableCodeAction]>>,
1407}
1408
1409impl CodeActionContents {
1410 fn len(&self) -> usize {
1411 match (&self.tasks, &self.actions) {
1412 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1413 (Some(tasks), None) => tasks.templates.len(),
1414 (None, Some(actions)) => actions.len(),
1415 (None, None) => 0,
1416 }
1417 }
1418
1419 fn is_empty(&self) -> bool {
1420 match (&self.tasks, &self.actions) {
1421 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1422 (Some(tasks), None) => tasks.templates.is_empty(),
1423 (None, Some(actions)) => actions.is_empty(),
1424 (None, None) => true,
1425 }
1426 }
1427
1428 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1429 self.tasks
1430 .iter()
1431 .flat_map(|tasks| {
1432 tasks
1433 .templates
1434 .iter()
1435 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1436 })
1437 .chain(self.actions.iter().flat_map(|actions| {
1438 actions.iter().map(|available| CodeActionsItem::CodeAction {
1439 excerpt_id: available.excerpt_id,
1440 action: available.action.clone(),
1441 provider: available.provider.clone(),
1442 })
1443 }))
1444 }
1445 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1446 match (&self.tasks, &self.actions) {
1447 (Some(tasks), Some(actions)) => {
1448 if index < tasks.templates.len() {
1449 tasks
1450 .templates
1451 .get(index)
1452 .cloned()
1453 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1454 } else {
1455 actions.get(index - tasks.templates.len()).map(|available| {
1456 CodeActionsItem::CodeAction {
1457 excerpt_id: available.excerpt_id,
1458 action: available.action.clone(),
1459 provider: available.provider.clone(),
1460 }
1461 })
1462 }
1463 }
1464 (Some(tasks), None) => tasks
1465 .templates
1466 .get(index)
1467 .cloned()
1468 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1469 (None, Some(actions)) => {
1470 actions
1471 .get(index)
1472 .map(|available| CodeActionsItem::CodeAction {
1473 excerpt_id: available.excerpt_id,
1474 action: available.action.clone(),
1475 provider: available.provider.clone(),
1476 })
1477 }
1478 (None, None) => None,
1479 }
1480 }
1481}
1482
1483#[allow(clippy::large_enum_variant)]
1484#[derive(Clone)]
1485enum CodeActionsItem {
1486 Task(TaskSourceKind, ResolvedTask),
1487 CodeAction {
1488 excerpt_id: ExcerptId,
1489 action: CodeAction,
1490 provider: Arc<dyn CodeActionProvider>,
1491 },
1492}
1493
1494impl CodeActionsItem {
1495 fn as_task(&self) -> Option<&ResolvedTask> {
1496 let Self::Task(_, task) = self else {
1497 return None;
1498 };
1499 Some(task)
1500 }
1501 fn as_code_action(&self) -> Option<&CodeAction> {
1502 let Self::CodeAction { action, .. } = self else {
1503 return None;
1504 };
1505 Some(action)
1506 }
1507 fn label(&self) -> String {
1508 match self {
1509 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1510 Self::Task(_, task) => task.resolved_label.clone(),
1511 }
1512 }
1513}
1514
1515struct CodeActionsMenu {
1516 actions: CodeActionContents,
1517 buffer: Model<Buffer>,
1518 selected_item: usize,
1519 scroll_handle: UniformListScrollHandle,
1520 deployed_from_indicator: Option<DisplayRow>,
1521}
1522
1523impl CodeActionsMenu {
1524 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1525 self.selected_item = 0;
1526 self.scroll_handle.scroll_to_item(self.selected_item);
1527 cx.notify()
1528 }
1529
1530 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1531 if self.selected_item > 0 {
1532 self.selected_item -= 1;
1533 } else {
1534 self.selected_item = self.actions.len() - 1;
1535 }
1536 self.scroll_handle.scroll_to_item(self.selected_item);
1537 cx.notify();
1538 }
1539
1540 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1541 if self.selected_item + 1 < self.actions.len() {
1542 self.selected_item += 1;
1543 } else {
1544 self.selected_item = 0;
1545 }
1546 self.scroll_handle.scroll_to_item(self.selected_item);
1547 cx.notify();
1548 }
1549
1550 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1551 self.selected_item = self.actions.len() - 1;
1552 self.scroll_handle.scroll_to_item(self.selected_item);
1553 cx.notify()
1554 }
1555
1556 fn visible(&self) -> bool {
1557 !self.actions.is_empty()
1558 }
1559
1560 fn render(
1561 &self,
1562 cursor_position: DisplayPoint,
1563 _style: &EditorStyle,
1564 max_height: Pixels,
1565 cx: &mut ViewContext<Editor>,
1566 ) -> (ContextMenuOrigin, AnyElement) {
1567 let actions = self.actions.clone();
1568 let selected_item = self.selected_item;
1569 let element = uniform_list(
1570 cx.view().clone(),
1571 "code_actions_menu",
1572 self.actions.len(),
1573 move |_this, range, cx| {
1574 actions
1575 .iter()
1576 .skip(range.start)
1577 .take(range.end - range.start)
1578 .enumerate()
1579 .map(|(ix, action)| {
1580 let item_ix = range.start + ix;
1581 let selected = selected_item == item_ix;
1582 let colors = cx.theme().colors();
1583 div()
1584 .px_1()
1585 .rounded_md()
1586 .text_color(colors.text)
1587 .when(selected, |style| {
1588 style
1589 .bg(colors.element_active)
1590 .text_color(colors.text_accent)
1591 })
1592 .hover(|style| {
1593 style
1594 .bg(colors.element_hover)
1595 .text_color(colors.text_accent)
1596 })
1597 .whitespace_nowrap()
1598 .when_some(action.as_code_action(), |this, action| {
1599 this.on_mouse_down(
1600 MouseButton::Left,
1601 cx.listener(move |editor, _, cx| {
1602 cx.stop_propagation();
1603 if let Some(task) = editor.confirm_code_action(
1604 &ConfirmCodeAction {
1605 item_ix: Some(item_ix),
1606 },
1607 cx,
1608 ) {
1609 task.detach_and_log_err(cx)
1610 }
1611 }),
1612 )
1613 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1614 .child(SharedString::from(action.lsp_action.title.clone()))
1615 })
1616 .when_some(action.as_task(), |this, task| {
1617 this.on_mouse_down(
1618 MouseButton::Left,
1619 cx.listener(move |editor, _, cx| {
1620 cx.stop_propagation();
1621 if let Some(task) = editor.confirm_code_action(
1622 &ConfirmCodeAction {
1623 item_ix: Some(item_ix),
1624 },
1625 cx,
1626 ) {
1627 task.detach_and_log_err(cx)
1628 }
1629 }),
1630 )
1631 .child(SharedString::from(task.resolved_label.clone()))
1632 })
1633 })
1634 .collect()
1635 },
1636 )
1637 .elevation_1(cx)
1638 .p_1()
1639 .max_h(max_height)
1640 .occlude()
1641 .track_scroll(self.scroll_handle.clone())
1642 .with_width_from_item(
1643 self.actions
1644 .iter()
1645 .enumerate()
1646 .max_by_key(|(_, action)| match action {
1647 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1648 CodeActionsItem::CodeAction { action, .. } => {
1649 action.lsp_action.title.chars().count()
1650 }
1651 })
1652 .map(|(ix, _)| ix),
1653 )
1654 .with_sizing_behavior(ListSizingBehavior::Infer)
1655 .into_any_element();
1656
1657 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1658 ContextMenuOrigin::GutterIndicator(row)
1659 } else {
1660 ContextMenuOrigin::EditorPoint(cursor_position)
1661 };
1662
1663 (cursor_position, element)
1664 }
1665}
1666
1667#[derive(Debug)]
1668struct ActiveDiagnosticGroup {
1669 primary_range: Range<Anchor>,
1670 primary_message: String,
1671 group_id: usize,
1672 blocks: HashMap<CustomBlockId, Diagnostic>,
1673 is_valid: bool,
1674}
1675
1676#[derive(Serialize, Deserialize, Clone, Debug)]
1677pub struct ClipboardSelection {
1678 pub len: usize,
1679 pub is_entire_line: bool,
1680 pub first_line_indent: u32,
1681}
1682
1683#[derive(Debug)]
1684pub(crate) struct NavigationData {
1685 cursor_anchor: Anchor,
1686 cursor_position: Point,
1687 scroll_anchor: ScrollAnchor,
1688 scroll_top_row: u32,
1689}
1690
1691#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1692pub enum GotoDefinitionKind {
1693 Symbol,
1694 Declaration,
1695 Type,
1696 Implementation,
1697}
1698
1699#[derive(Debug, Clone)]
1700enum InlayHintRefreshReason {
1701 Toggle(bool),
1702 SettingsChange(InlayHintSettings),
1703 NewLinesShown,
1704 BufferEdited(HashSet<Arc<Language>>),
1705 RefreshRequested,
1706 ExcerptsRemoved(Vec<ExcerptId>),
1707}
1708
1709impl InlayHintRefreshReason {
1710 fn description(&self) -> &'static str {
1711 match self {
1712 Self::Toggle(_) => "toggle",
1713 Self::SettingsChange(_) => "settings change",
1714 Self::NewLinesShown => "new lines shown",
1715 Self::BufferEdited(_) => "buffer edited",
1716 Self::RefreshRequested => "refresh requested",
1717 Self::ExcerptsRemoved(_) => "excerpts removed",
1718 }
1719 }
1720}
1721
1722pub(crate) struct FocusedBlock {
1723 id: BlockId,
1724 focus_handle: WeakFocusHandle,
1725}
1726
1727impl Editor {
1728 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1729 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1730 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1731 Self::new(
1732 EditorMode::SingleLine { auto_width: false },
1733 buffer,
1734 None,
1735 false,
1736 cx,
1737 )
1738 }
1739
1740 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1741 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1742 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1743 Self::new(EditorMode::Full, buffer, None, false, cx)
1744 }
1745
1746 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1747 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1748 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1749 Self::new(
1750 EditorMode::SingleLine { auto_width: true },
1751 buffer,
1752 None,
1753 false,
1754 cx,
1755 )
1756 }
1757
1758 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1759 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1760 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1761 Self::new(
1762 EditorMode::AutoHeight { max_lines },
1763 buffer,
1764 None,
1765 false,
1766 cx,
1767 )
1768 }
1769
1770 pub fn for_buffer(
1771 buffer: Model<Buffer>,
1772 project: Option<Model<Project>>,
1773 cx: &mut ViewContext<Self>,
1774 ) -> Self {
1775 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1776 Self::new(EditorMode::Full, buffer, project, false, cx)
1777 }
1778
1779 pub fn for_multibuffer(
1780 buffer: Model<MultiBuffer>,
1781 project: Option<Model<Project>>,
1782 show_excerpt_controls: bool,
1783 cx: &mut ViewContext<Self>,
1784 ) -> Self {
1785 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1786 }
1787
1788 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1789 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1790 let mut clone = Self::new(
1791 self.mode,
1792 self.buffer.clone(),
1793 self.project.clone(),
1794 show_excerpt_controls,
1795 cx,
1796 );
1797 self.display_map.update(cx, |display_map, cx| {
1798 let snapshot = display_map.snapshot(cx);
1799 clone.display_map.update(cx, |display_map, cx| {
1800 display_map.set_state(&snapshot, cx);
1801 });
1802 });
1803 clone.selections.clone_state(&self.selections);
1804 clone.scroll_manager.clone_state(&self.scroll_manager);
1805 clone.searchable = self.searchable;
1806 clone
1807 }
1808
1809 pub fn new(
1810 mode: EditorMode,
1811 buffer: Model<MultiBuffer>,
1812 project: Option<Model<Project>>,
1813 show_excerpt_controls: bool,
1814 cx: &mut ViewContext<Self>,
1815 ) -> Self {
1816 let style = cx.text_style();
1817 let font_size = style.font_size.to_pixels(cx.rem_size());
1818 let editor = cx.view().downgrade();
1819 let fold_placeholder = FoldPlaceholder {
1820 constrain_width: true,
1821 render: Arc::new(move |fold_id, fold_range, cx| {
1822 let editor = editor.clone();
1823 div()
1824 .id(fold_id)
1825 .bg(cx.theme().colors().ghost_element_background)
1826 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1827 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1828 .rounded_sm()
1829 .size_full()
1830 .cursor_pointer()
1831 .child("⋯")
1832 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1833 .on_click(move |_, cx| {
1834 editor
1835 .update(cx, |editor, cx| {
1836 editor.unfold_ranges(
1837 [fold_range.start..fold_range.end],
1838 true,
1839 false,
1840 cx,
1841 );
1842 cx.stop_propagation();
1843 })
1844 .ok();
1845 })
1846 .into_any()
1847 }),
1848 merge_adjacent: true,
1849 };
1850 let display_map = cx.new_model(|cx| {
1851 DisplayMap::new(
1852 buffer.clone(),
1853 style.font(),
1854 font_size,
1855 None,
1856 show_excerpt_controls,
1857 FILE_HEADER_HEIGHT,
1858 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1859 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1860 fold_placeholder,
1861 cx,
1862 )
1863 });
1864
1865 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1866
1867 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1868
1869 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1870 .then(|| language_settings::SoftWrap::None);
1871
1872 let mut project_subscriptions = Vec::new();
1873 if mode == EditorMode::Full {
1874 if let Some(project) = project.as_ref() {
1875 if buffer.read(cx).is_singleton() {
1876 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1877 cx.emit(EditorEvent::TitleChanged);
1878 }));
1879 }
1880 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1881 if let project::Event::RefreshInlayHints = event {
1882 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1883 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1884 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1885 let focus_handle = editor.focus_handle(cx);
1886 if focus_handle.is_focused(cx) {
1887 let snapshot = buffer.read(cx).snapshot();
1888 for (range, snippet) in snippet_edits {
1889 let editor_range =
1890 language::range_from_lsp(*range).to_offset(&snapshot);
1891 editor
1892 .insert_snippet(&[editor_range], snippet.clone(), cx)
1893 .ok();
1894 }
1895 }
1896 }
1897 }
1898 }));
1899 if let Some(task_inventory) = project
1900 .read(cx)
1901 .task_store()
1902 .read(cx)
1903 .task_inventory()
1904 .cloned()
1905 {
1906 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1907 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1908 }));
1909 }
1910 }
1911 }
1912
1913 let inlay_hint_settings = inlay_hint_settings(
1914 selections.newest_anchor().head(),
1915 &buffer.read(cx).snapshot(cx),
1916 cx,
1917 );
1918 let focus_handle = cx.focus_handle();
1919 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1920 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1921 .detach();
1922 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1923 .detach();
1924 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1925
1926 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1927 Some(false)
1928 } else {
1929 None
1930 };
1931
1932 let mut code_action_providers = Vec::new();
1933 if let Some(project) = project.clone() {
1934 code_action_providers.push(Arc::new(project) as Arc<_>);
1935 }
1936
1937 let mut this = Self {
1938 focus_handle,
1939 show_cursor_when_unfocused: false,
1940 last_focused_descendant: None,
1941 buffer: buffer.clone(),
1942 display_map: display_map.clone(),
1943 selections,
1944 scroll_manager: ScrollManager::new(cx),
1945 columnar_selection_tail: None,
1946 add_selections_state: None,
1947 select_next_state: None,
1948 select_prev_state: None,
1949 selection_history: Default::default(),
1950 autoclose_regions: Default::default(),
1951 snippet_stack: Default::default(),
1952 select_larger_syntax_node_stack: Vec::new(),
1953 ime_transaction: Default::default(),
1954 active_diagnostics: None,
1955 soft_wrap_mode_override,
1956 completion_provider: project.clone().map(|project| Box::new(project) as _),
1957 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1958 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1959 project,
1960 blink_manager: blink_manager.clone(),
1961 show_local_selections: true,
1962 mode,
1963 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1964 show_gutter: mode == EditorMode::Full,
1965 show_line_numbers: None,
1966 use_relative_line_numbers: None,
1967 show_git_diff_gutter: None,
1968 show_code_actions: None,
1969 show_runnables: None,
1970 show_wrap_guides: None,
1971 show_indent_guides,
1972 placeholder_text: None,
1973 highlight_order: 0,
1974 highlighted_rows: HashMap::default(),
1975 background_highlights: Default::default(),
1976 gutter_highlights: TreeMap::default(),
1977 scrollbar_marker_state: ScrollbarMarkerState::default(),
1978 active_indent_guides_state: ActiveIndentGuidesState::default(),
1979 nav_history: None,
1980 context_menu: RwLock::new(None),
1981 mouse_context_menu: None,
1982 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1983 completion_tasks: Default::default(),
1984 signature_help_state: SignatureHelpState::default(),
1985 auto_signature_help: None,
1986 find_all_references_task_sources: Vec::new(),
1987 next_completion_id: 0,
1988 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1989 next_inlay_id: 0,
1990 code_action_providers,
1991 available_code_actions: Default::default(),
1992 code_actions_task: Default::default(),
1993 document_highlights_task: Default::default(),
1994 linked_editing_range_task: Default::default(),
1995 pending_rename: Default::default(),
1996 searchable: true,
1997 cursor_shape: EditorSettings::get_global(cx)
1998 .cursor_shape
1999 .unwrap_or_default(),
2000 current_line_highlight: None,
2001 autoindent_mode: Some(AutoindentMode::EachLine),
2002 collapse_matches: false,
2003 workspace: None,
2004 input_enabled: true,
2005 use_modal_editing: mode == EditorMode::Full,
2006 read_only: false,
2007 use_autoclose: true,
2008 use_auto_surround: true,
2009 auto_replace_emoji_shortcode: false,
2010 leader_peer_id: None,
2011 remote_id: None,
2012 hover_state: Default::default(),
2013 hovered_link_state: Default::default(),
2014 inline_completion_provider: None,
2015 active_inline_completion: None,
2016 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2017 expanded_hunks: ExpandedHunks::default(),
2018 gutter_hovered: false,
2019 pixel_position_of_newest_cursor: None,
2020 last_bounds: None,
2021 expect_bounds_change: None,
2022 gutter_dimensions: GutterDimensions::default(),
2023 style: None,
2024 show_cursor_names: false,
2025 hovered_cursors: Default::default(),
2026 next_editor_action_id: EditorActionId::default(),
2027 editor_actions: Rc::default(),
2028 show_inline_completions_override: None,
2029 enable_inline_completions: true,
2030 custom_context_menu: None,
2031 show_git_blame_gutter: false,
2032 show_git_blame_inline: false,
2033 show_selection_menu: None,
2034 show_git_blame_inline_delay_task: None,
2035 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2036 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2037 .session
2038 .restore_unsaved_buffers,
2039 blame: None,
2040 blame_subscription: None,
2041 tasks: Default::default(),
2042 _subscriptions: vec![
2043 cx.observe(&buffer, Self::on_buffer_changed),
2044 cx.subscribe(&buffer, Self::on_buffer_event),
2045 cx.observe(&display_map, Self::on_display_map_changed),
2046 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2047 cx.observe_global::<SettingsStore>(Self::settings_changed),
2048 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2049 cx.observe_window_activation(|editor, cx| {
2050 let active = cx.is_window_active();
2051 editor.blink_manager.update(cx, |blink_manager, cx| {
2052 if active {
2053 blink_manager.enable(cx);
2054 } else {
2055 blink_manager.disable(cx);
2056 }
2057 });
2058 }),
2059 ],
2060 tasks_update_task: None,
2061 linked_edit_ranges: Default::default(),
2062 previous_search_ranges: None,
2063 breadcrumb_header: None,
2064 focused_block: None,
2065 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2066 addons: HashMap::default(),
2067 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2068 text_style_refinement: None,
2069 };
2070 this.tasks_update_task = Some(this.refresh_runnables(cx));
2071 this._subscriptions.extend(project_subscriptions);
2072
2073 this.end_selection(cx);
2074 this.scroll_manager.show_scrollbar(cx);
2075
2076 if mode == EditorMode::Full {
2077 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2078 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2079
2080 if this.git_blame_inline_enabled {
2081 this.git_blame_inline_enabled = true;
2082 this.start_git_blame_inline(false, cx);
2083 }
2084 }
2085
2086 this.report_editor_event("open", None, cx);
2087 this
2088 }
2089
2090 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2091 self.mouse_context_menu
2092 .as_ref()
2093 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2094 }
2095
2096 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2097 let mut key_context = KeyContext::new_with_defaults();
2098 key_context.add("Editor");
2099 let mode = match self.mode {
2100 EditorMode::SingleLine { .. } => "single_line",
2101 EditorMode::AutoHeight { .. } => "auto_height",
2102 EditorMode::Full => "full",
2103 };
2104
2105 if EditorSettings::jupyter_enabled(cx) {
2106 key_context.add("jupyter");
2107 }
2108
2109 key_context.set("mode", mode);
2110 if self.pending_rename.is_some() {
2111 key_context.add("renaming");
2112 }
2113 if self.context_menu_visible() {
2114 match self.context_menu.read().as_ref() {
2115 Some(ContextMenu::Completions(_)) => {
2116 key_context.add("menu");
2117 key_context.add("showing_completions")
2118 }
2119 Some(ContextMenu::CodeActions(_)) => {
2120 key_context.add("menu");
2121 key_context.add("showing_code_actions")
2122 }
2123 None => {}
2124 }
2125 }
2126
2127 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2128 if !self.focus_handle(cx).contains_focused(cx)
2129 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2130 {
2131 for addon in self.addons.values() {
2132 addon.extend_key_context(&mut key_context, cx)
2133 }
2134 }
2135
2136 if let Some(extension) = self
2137 .buffer
2138 .read(cx)
2139 .as_singleton()
2140 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2141 {
2142 key_context.set("extension", extension.to_string());
2143 }
2144
2145 if self.has_active_inline_completion(cx) {
2146 key_context.add("copilot_suggestion");
2147 key_context.add("inline_completion");
2148 }
2149
2150 key_context
2151 }
2152
2153 pub fn new_file(
2154 workspace: &mut Workspace,
2155 _: &workspace::NewFile,
2156 cx: &mut ViewContext<Workspace>,
2157 ) {
2158 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2159 "Failed to create buffer",
2160 cx,
2161 |e, _| match e.error_code() {
2162 ErrorCode::RemoteUpgradeRequired => Some(format!(
2163 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2164 e.error_tag("required").unwrap_or("the latest version")
2165 )),
2166 _ => None,
2167 },
2168 );
2169 }
2170
2171 pub fn new_in_workspace(
2172 workspace: &mut Workspace,
2173 cx: &mut ViewContext<Workspace>,
2174 ) -> Task<Result<View<Editor>>> {
2175 let project = workspace.project().clone();
2176 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2177
2178 cx.spawn(|workspace, mut cx| async move {
2179 let buffer = create.await?;
2180 workspace.update(&mut cx, |workspace, cx| {
2181 let editor =
2182 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2183 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2184 editor
2185 })
2186 })
2187 }
2188
2189 fn new_file_vertical(
2190 workspace: &mut Workspace,
2191 _: &workspace::NewFileSplitVertical,
2192 cx: &mut ViewContext<Workspace>,
2193 ) {
2194 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2195 }
2196
2197 fn new_file_horizontal(
2198 workspace: &mut Workspace,
2199 _: &workspace::NewFileSplitHorizontal,
2200 cx: &mut ViewContext<Workspace>,
2201 ) {
2202 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2203 }
2204
2205 fn new_file_in_direction(
2206 workspace: &mut Workspace,
2207 direction: SplitDirection,
2208 cx: &mut ViewContext<Workspace>,
2209 ) {
2210 let project = workspace.project().clone();
2211 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2212
2213 cx.spawn(|workspace, mut cx| async move {
2214 let buffer = create.await?;
2215 workspace.update(&mut cx, move |workspace, cx| {
2216 workspace.split_item(
2217 direction,
2218 Box::new(
2219 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2220 ),
2221 cx,
2222 )
2223 })?;
2224 anyhow::Ok(())
2225 })
2226 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2227 ErrorCode::RemoteUpgradeRequired => Some(format!(
2228 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2229 e.error_tag("required").unwrap_or("the latest version")
2230 )),
2231 _ => None,
2232 });
2233 }
2234
2235 pub fn leader_peer_id(&self) -> Option<PeerId> {
2236 self.leader_peer_id
2237 }
2238
2239 pub fn buffer(&self) -> &Model<MultiBuffer> {
2240 &self.buffer
2241 }
2242
2243 pub fn workspace(&self) -> Option<View<Workspace>> {
2244 self.workspace.as_ref()?.0.upgrade()
2245 }
2246
2247 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2248 self.buffer().read(cx).title(cx)
2249 }
2250
2251 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2252 let git_blame_gutter_max_author_length = self
2253 .render_git_blame_gutter(cx)
2254 .then(|| {
2255 if let Some(blame) = self.blame.as_ref() {
2256 let max_author_length =
2257 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2258 Some(max_author_length)
2259 } else {
2260 None
2261 }
2262 })
2263 .flatten();
2264
2265 EditorSnapshot {
2266 mode: self.mode,
2267 show_gutter: self.show_gutter,
2268 show_line_numbers: self.show_line_numbers,
2269 show_git_diff_gutter: self.show_git_diff_gutter,
2270 show_code_actions: self.show_code_actions,
2271 show_runnables: self.show_runnables,
2272 git_blame_gutter_max_author_length,
2273 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2274 scroll_anchor: self.scroll_manager.anchor(),
2275 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2276 placeholder_text: self.placeholder_text.clone(),
2277 is_focused: self.focus_handle.is_focused(cx),
2278 current_line_highlight: self
2279 .current_line_highlight
2280 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2281 gutter_hovered: self.gutter_hovered,
2282 }
2283 }
2284
2285 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2286 self.buffer.read(cx).language_at(point, cx)
2287 }
2288
2289 pub fn file_at<T: ToOffset>(
2290 &self,
2291 point: T,
2292 cx: &AppContext,
2293 ) -> Option<Arc<dyn language::File>> {
2294 self.buffer.read(cx).read(cx).file_at(point).cloned()
2295 }
2296
2297 pub fn active_excerpt(
2298 &self,
2299 cx: &AppContext,
2300 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2301 self.buffer
2302 .read(cx)
2303 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2304 }
2305
2306 pub fn mode(&self) -> EditorMode {
2307 self.mode
2308 }
2309
2310 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2311 self.collaboration_hub.as_deref()
2312 }
2313
2314 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2315 self.collaboration_hub = Some(hub);
2316 }
2317
2318 pub fn set_custom_context_menu(
2319 &mut self,
2320 f: impl 'static
2321 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2322 ) {
2323 self.custom_context_menu = Some(Box::new(f))
2324 }
2325
2326 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2327 self.completion_provider = provider;
2328 }
2329
2330 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2331 self.semantics_provider.clone()
2332 }
2333
2334 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2335 self.semantics_provider = provider;
2336 }
2337
2338 pub fn set_inline_completion_provider<T>(
2339 &mut self,
2340 provider: Option<Model<T>>,
2341 cx: &mut ViewContext<Self>,
2342 ) where
2343 T: InlineCompletionProvider,
2344 {
2345 self.inline_completion_provider =
2346 provider.map(|provider| RegisteredInlineCompletionProvider {
2347 _subscription: cx.observe(&provider, |this, _, cx| {
2348 if this.focus_handle.is_focused(cx) {
2349 this.update_visible_inline_completion(cx);
2350 }
2351 }),
2352 provider: Arc::new(provider),
2353 });
2354 self.refresh_inline_completion(false, false, cx);
2355 }
2356
2357 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2358 self.placeholder_text.as_deref()
2359 }
2360
2361 pub fn set_placeholder_text(
2362 &mut self,
2363 placeholder_text: impl Into<Arc<str>>,
2364 cx: &mut ViewContext<Self>,
2365 ) {
2366 let placeholder_text = Some(placeholder_text.into());
2367 if self.placeholder_text != placeholder_text {
2368 self.placeholder_text = placeholder_text;
2369 cx.notify();
2370 }
2371 }
2372
2373 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2374 self.cursor_shape = cursor_shape;
2375
2376 // Disrupt blink for immediate user feedback that the cursor shape has changed
2377 self.blink_manager.update(cx, BlinkManager::show_cursor);
2378
2379 cx.notify();
2380 }
2381
2382 pub fn set_current_line_highlight(
2383 &mut self,
2384 current_line_highlight: Option<CurrentLineHighlight>,
2385 ) {
2386 self.current_line_highlight = current_line_highlight;
2387 }
2388
2389 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2390 self.collapse_matches = collapse_matches;
2391 }
2392
2393 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2394 if self.collapse_matches {
2395 return range.start..range.start;
2396 }
2397 range.clone()
2398 }
2399
2400 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2401 if self.display_map.read(cx).clip_at_line_ends != clip {
2402 self.display_map
2403 .update(cx, |map, _| map.clip_at_line_ends = clip);
2404 }
2405 }
2406
2407 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2408 self.input_enabled = input_enabled;
2409 }
2410
2411 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2412 self.enable_inline_completions = enabled;
2413 }
2414
2415 pub fn set_autoindent(&mut self, autoindent: bool) {
2416 if autoindent {
2417 self.autoindent_mode = Some(AutoindentMode::EachLine);
2418 } else {
2419 self.autoindent_mode = None;
2420 }
2421 }
2422
2423 pub fn read_only(&self, cx: &AppContext) -> bool {
2424 self.read_only || self.buffer.read(cx).read_only()
2425 }
2426
2427 pub fn set_read_only(&mut self, read_only: bool) {
2428 self.read_only = read_only;
2429 }
2430
2431 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2432 self.use_autoclose = autoclose;
2433 }
2434
2435 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2436 self.use_auto_surround = auto_surround;
2437 }
2438
2439 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2440 self.auto_replace_emoji_shortcode = auto_replace;
2441 }
2442
2443 pub fn toggle_inline_completions(
2444 &mut self,
2445 _: &ToggleInlineCompletions,
2446 cx: &mut ViewContext<Self>,
2447 ) {
2448 if self.show_inline_completions_override.is_some() {
2449 self.set_show_inline_completions(None, cx);
2450 } else {
2451 let cursor = self.selections.newest_anchor().head();
2452 if let Some((buffer, cursor_buffer_position)) =
2453 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2454 {
2455 let show_inline_completions =
2456 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2457 self.set_show_inline_completions(Some(show_inline_completions), cx);
2458 }
2459 }
2460 }
2461
2462 pub fn set_show_inline_completions(
2463 &mut self,
2464 show_inline_completions: Option<bool>,
2465 cx: &mut ViewContext<Self>,
2466 ) {
2467 self.show_inline_completions_override = show_inline_completions;
2468 self.refresh_inline_completion(false, true, cx);
2469 }
2470
2471 fn should_show_inline_completions(
2472 &self,
2473 buffer: &Model<Buffer>,
2474 buffer_position: language::Anchor,
2475 cx: &AppContext,
2476 ) -> bool {
2477 if let Some(provider) = self.inline_completion_provider() {
2478 if let Some(show_inline_completions) = self.show_inline_completions_override {
2479 show_inline_completions
2480 } else {
2481 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2482 }
2483 } else {
2484 false
2485 }
2486 }
2487
2488 pub fn set_use_modal_editing(&mut self, to: bool) {
2489 self.use_modal_editing = to;
2490 }
2491
2492 pub fn use_modal_editing(&self) -> bool {
2493 self.use_modal_editing
2494 }
2495
2496 fn selections_did_change(
2497 &mut self,
2498 local: bool,
2499 old_cursor_position: &Anchor,
2500 show_completions: bool,
2501 cx: &mut ViewContext<Self>,
2502 ) {
2503 cx.invalidate_character_coordinates();
2504
2505 // Copy selections to primary selection buffer
2506 #[cfg(target_os = "linux")]
2507 if local {
2508 let selections = self.selections.all::<usize>(cx);
2509 let buffer_handle = self.buffer.read(cx).read(cx);
2510
2511 let mut text = String::new();
2512 for (index, selection) in selections.iter().enumerate() {
2513 let text_for_selection = buffer_handle
2514 .text_for_range(selection.start..selection.end)
2515 .collect::<String>();
2516
2517 text.push_str(&text_for_selection);
2518 if index != selections.len() - 1 {
2519 text.push('\n');
2520 }
2521 }
2522
2523 if !text.is_empty() {
2524 cx.write_to_primary(ClipboardItem::new_string(text));
2525 }
2526 }
2527
2528 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2529 self.buffer.update(cx, |buffer, cx| {
2530 buffer.set_active_selections(
2531 &self.selections.disjoint_anchors(),
2532 self.selections.line_mode,
2533 self.cursor_shape,
2534 cx,
2535 )
2536 });
2537 }
2538 let display_map = self
2539 .display_map
2540 .update(cx, |display_map, cx| display_map.snapshot(cx));
2541 let buffer = &display_map.buffer_snapshot;
2542 self.add_selections_state = None;
2543 self.select_next_state = None;
2544 self.select_prev_state = None;
2545 self.select_larger_syntax_node_stack.clear();
2546 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2547 self.snippet_stack
2548 .invalidate(&self.selections.disjoint_anchors(), buffer);
2549 self.take_rename(false, cx);
2550
2551 let new_cursor_position = self.selections.newest_anchor().head();
2552
2553 self.push_to_nav_history(
2554 *old_cursor_position,
2555 Some(new_cursor_position.to_point(buffer)),
2556 cx,
2557 );
2558
2559 if local {
2560 let new_cursor_position = self.selections.newest_anchor().head();
2561 let mut context_menu = self.context_menu.write();
2562 let completion_menu = match context_menu.as_ref() {
2563 Some(ContextMenu::Completions(menu)) => Some(menu),
2564
2565 _ => {
2566 *context_menu = None;
2567 None
2568 }
2569 };
2570
2571 if let Some(completion_menu) = completion_menu {
2572 let cursor_position = new_cursor_position.to_offset(buffer);
2573 let (word_range, kind) =
2574 buffer.surrounding_word(completion_menu.initial_position, true);
2575 if kind == Some(CharKind::Word)
2576 && word_range.to_inclusive().contains(&cursor_position)
2577 {
2578 let mut completion_menu = completion_menu.clone();
2579 drop(context_menu);
2580
2581 let query = Self::completion_query(buffer, cursor_position);
2582 cx.spawn(move |this, mut cx| async move {
2583 completion_menu
2584 .filter(query.as_deref(), cx.background_executor().clone())
2585 .await;
2586
2587 this.update(&mut cx, |this, cx| {
2588 let mut context_menu = this.context_menu.write();
2589 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2590 return;
2591 };
2592
2593 if menu.id > completion_menu.id {
2594 return;
2595 }
2596
2597 *context_menu = Some(ContextMenu::Completions(completion_menu));
2598 drop(context_menu);
2599 cx.notify();
2600 })
2601 })
2602 .detach();
2603
2604 if show_completions {
2605 self.show_completions(&ShowCompletions { trigger: None }, cx);
2606 }
2607 } else {
2608 drop(context_menu);
2609 self.hide_context_menu(cx);
2610 }
2611 } else {
2612 drop(context_menu);
2613 }
2614
2615 hide_hover(self, cx);
2616
2617 if old_cursor_position.to_display_point(&display_map).row()
2618 != new_cursor_position.to_display_point(&display_map).row()
2619 {
2620 self.available_code_actions.take();
2621 }
2622 self.refresh_code_actions(cx);
2623 self.refresh_document_highlights(cx);
2624 refresh_matching_bracket_highlights(self, cx);
2625 self.discard_inline_completion(false, cx);
2626 linked_editing_ranges::refresh_linked_ranges(self, cx);
2627 if self.git_blame_inline_enabled {
2628 self.start_inline_blame_timer(cx);
2629 }
2630 }
2631
2632 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2633 cx.emit(EditorEvent::SelectionsChanged { local });
2634
2635 if self.selections.disjoint_anchors().len() == 1 {
2636 cx.emit(SearchEvent::ActiveMatchChanged)
2637 }
2638 cx.notify();
2639 }
2640
2641 pub fn change_selections<R>(
2642 &mut self,
2643 autoscroll: Option<Autoscroll>,
2644 cx: &mut ViewContext<Self>,
2645 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2646 ) -> R {
2647 self.change_selections_inner(autoscroll, true, cx, change)
2648 }
2649
2650 pub fn change_selections_inner<R>(
2651 &mut self,
2652 autoscroll: Option<Autoscroll>,
2653 request_completions: bool,
2654 cx: &mut ViewContext<Self>,
2655 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2656 ) -> R {
2657 let old_cursor_position = self.selections.newest_anchor().head();
2658 self.push_to_selection_history();
2659
2660 let (changed, result) = self.selections.change_with(cx, change);
2661
2662 if changed {
2663 if let Some(autoscroll) = autoscroll {
2664 self.request_autoscroll(autoscroll, cx);
2665 }
2666 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2667
2668 if self.should_open_signature_help_automatically(
2669 &old_cursor_position,
2670 self.signature_help_state.backspace_pressed(),
2671 cx,
2672 ) {
2673 self.show_signature_help(&ShowSignatureHelp, cx);
2674 }
2675 self.signature_help_state.set_backspace_pressed(false);
2676 }
2677
2678 result
2679 }
2680
2681 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2682 where
2683 I: IntoIterator<Item = (Range<S>, T)>,
2684 S: ToOffset,
2685 T: Into<Arc<str>>,
2686 {
2687 if self.read_only(cx) {
2688 return;
2689 }
2690
2691 self.buffer
2692 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2693 }
2694
2695 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2696 where
2697 I: IntoIterator<Item = (Range<S>, T)>,
2698 S: ToOffset,
2699 T: Into<Arc<str>>,
2700 {
2701 if self.read_only(cx) {
2702 return;
2703 }
2704
2705 self.buffer.update(cx, |buffer, cx| {
2706 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2707 });
2708 }
2709
2710 pub fn edit_with_block_indent<I, S, T>(
2711 &mut self,
2712 edits: I,
2713 original_indent_columns: Vec<u32>,
2714 cx: &mut ViewContext<Self>,
2715 ) where
2716 I: IntoIterator<Item = (Range<S>, T)>,
2717 S: ToOffset,
2718 T: Into<Arc<str>>,
2719 {
2720 if self.read_only(cx) {
2721 return;
2722 }
2723
2724 self.buffer.update(cx, |buffer, cx| {
2725 buffer.edit(
2726 edits,
2727 Some(AutoindentMode::Block {
2728 original_indent_columns,
2729 }),
2730 cx,
2731 )
2732 });
2733 }
2734
2735 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2736 self.hide_context_menu(cx);
2737
2738 match phase {
2739 SelectPhase::Begin {
2740 position,
2741 add,
2742 click_count,
2743 } => self.begin_selection(position, add, click_count, cx),
2744 SelectPhase::BeginColumnar {
2745 position,
2746 goal_column,
2747 reset,
2748 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2749 SelectPhase::Extend {
2750 position,
2751 click_count,
2752 } => self.extend_selection(position, click_count, cx),
2753 SelectPhase::Update {
2754 position,
2755 goal_column,
2756 scroll_delta,
2757 } => self.update_selection(position, goal_column, scroll_delta, cx),
2758 SelectPhase::End => self.end_selection(cx),
2759 }
2760 }
2761
2762 fn extend_selection(
2763 &mut self,
2764 position: DisplayPoint,
2765 click_count: usize,
2766 cx: &mut ViewContext<Self>,
2767 ) {
2768 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2769 let tail = self.selections.newest::<usize>(cx).tail();
2770 self.begin_selection(position, false, click_count, cx);
2771
2772 let position = position.to_offset(&display_map, Bias::Left);
2773 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2774
2775 let mut pending_selection = self
2776 .selections
2777 .pending_anchor()
2778 .expect("extend_selection not called with pending selection");
2779 if position >= tail {
2780 pending_selection.start = tail_anchor;
2781 } else {
2782 pending_selection.end = tail_anchor;
2783 pending_selection.reversed = true;
2784 }
2785
2786 let mut pending_mode = self.selections.pending_mode().unwrap();
2787 match &mut pending_mode {
2788 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2789 _ => {}
2790 }
2791
2792 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2793 s.set_pending(pending_selection, pending_mode)
2794 });
2795 }
2796
2797 fn begin_selection(
2798 &mut self,
2799 position: DisplayPoint,
2800 add: bool,
2801 click_count: usize,
2802 cx: &mut ViewContext<Self>,
2803 ) {
2804 if !self.focus_handle.is_focused(cx) {
2805 self.last_focused_descendant = None;
2806 cx.focus(&self.focus_handle);
2807 }
2808
2809 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2810 let buffer = &display_map.buffer_snapshot;
2811 let newest_selection = self.selections.newest_anchor().clone();
2812 let position = display_map.clip_point(position, Bias::Left);
2813
2814 let start;
2815 let end;
2816 let mode;
2817 let auto_scroll;
2818 match click_count {
2819 1 => {
2820 start = buffer.anchor_before(position.to_point(&display_map));
2821 end = start;
2822 mode = SelectMode::Character;
2823 auto_scroll = true;
2824 }
2825 2 => {
2826 let range = movement::surrounding_word(&display_map, position);
2827 start = buffer.anchor_before(range.start.to_point(&display_map));
2828 end = buffer.anchor_before(range.end.to_point(&display_map));
2829 mode = SelectMode::Word(start..end);
2830 auto_scroll = true;
2831 }
2832 3 => {
2833 let position = display_map
2834 .clip_point(position, Bias::Left)
2835 .to_point(&display_map);
2836 let line_start = display_map.prev_line_boundary(position).0;
2837 let next_line_start = buffer.clip_point(
2838 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2839 Bias::Left,
2840 );
2841 start = buffer.anchor_before(line_start);
2842 end = buffer.anchor_before(next_line_start);
2843 mode = SelectMode::Line(start..end);
2844 auto_scroll = true;
2845 }
2846 _ => {
2847 start = buffer.anchor_before(0);
2848 end = buffer.anchor_before(buffer.len());
2849 mode = SelectMode::All;
2850 auto_scroll = false;
2851 }
2852 }
2853
2854 let point_to_delete: Option<usize> = {
2855 let selected_points: Vec<Selection<Point>> =
2856 self.selections.disjoint_in_range(start..end, cx);
2857
2858 if !add || click_count > 1 {
2859 None
2860 } else if !selected_points.is_empty() {
2861 Some(selected_points[0].id)
2862 } else {
2863 let clicked_point_already_selected =
2864 self.selections.disjoint.iter().find(|selection| {
2865 selection.start.to_point(buffer) == start.to_point(buffer)
2866 || selection.end.to_point(buffer) == end.to_point(buffer)
2867 });
2868
2869 clicked_point_already_selected.map(|selection| selection.id)
2870 }
2871 };
2872
2873 let selections_count = self.selections.count();
2874
2875 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2876 if let Some(point_to_delete) = point_to_delete {
2877 s.delete(point_to_delete);
2878
2879 if selections_count == 1 {
2880 s.set_pending_anchor_range(start..end, mode);
2881 }
2882 } else {
2883 if !add {
2884 s.clear_disjoint();
2885 } else if click_count > 1 {
2886 s.delete(newest_selection.id)
2887 }
2888
2889 s.set_pending_anchor_range(start..end, mode);
2890 }
2891 });
2892 }
2893
2894 fn begin_columnar_selection(
2895 &mut self,
2896 position: DisplayPoint,
2897 goal_column: u32,
2898 reset: bool,
2899 cx: &mut ViewContext<Self>,
2900 ) {
2901 if !self.focus_handle.is_focused(cx) {
2902 self.last_focused_descendant = None;
2903 cx.focus(&self.focus_handle);
2904 }
2905
2906 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2907
2908 if reset {
2909 let pointer_position = display_map
2910 .buffer_snapshot
2911 .anchor_before(position.to_point(&display_map));
2912
2913 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2914 s.clear_disjoint();
2915 s.set_pending_anchor_range(
2916 pointer_position..pointer_position,
2917 SelectMode::Character,
2918 );
2919 });
2920 }
2921
2922 let tail = self.selections.newest::<Point>(cx).tail();
2923 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2924
2925 if !reset {
2926 self.select_columns(
2927 tail.to_display_point(&display_map),
2928 position,
2929 goal_column,
2930 &display_map,
2931 cx,
2932 );
2933 }
2934 }
2935
2936 fn update_selection(
2937 &mut self,
2938 position: DisplayPoint,
2939 goal_column: u32,
2940 scroll_delta: gpui::Point<f32>,
2941 cx: &mut ViewContext<Self>,
2942 ) {
2943 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2944
2945 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2946 let tail = tail.to_display_point(&display_map);
2947 self.select_columns(tail, position, goal_column, &display_map, cx);
2948 } else if let Some(mut pending) = self.selections.pending_anchor() {
2949 let buffer = self.buffer.read(cx).snapshot(cx);
2950 let head;
2951 let tail;
2952 let mode = self.selections.pending_mode().unwrap();
2953 match &mode {
2954 SelectMode::Character => {
2955 head = position.to_point(&display_map);
2956 tail = pending.tail().to_point(&buffer);
2957 }
2958 SelectMode::Word(original_range) => {
2959 let original_display_range = original_range.start.to_display_point(&display_map)
2960 ..original_range.end.to_display_point(&display_map);
2961 let original_buffer_range = original_display_range.start.to_point(&display_map)
2962 ..original_display_range.end.to_point(&display_map);
2963 if movement::is_inside_word(&display_map, position)
2964 || original_display_range.contains(&position)
2965 {
2966 let word_range = movement::surrounding_word(&display_map, position);
2967 if word_range.start < original_display_range.start {
2968 head = word_range.start.to_point(&display_map);
2969 } else {
2970 head = word_range.end.to_point(&display_map);
2971 }
2972 } else {
2973 head = position.to_point(&display_map);
2974 }
2975
2976 if head <= original_buffer_range.start {
2977 tail = original_buffer_range.end;
2978 } else {
2979 tail = original_buffer_range.start;
2980 }
2981 }
2982 SelectMode::Line(original_range) => {
2983 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2984
2985 let position = display_map
2986 .clip_point(position, Bias::Left)
2987 .to_point(&display_map);
2988 let line_start = display_map.prev_line_boundary(position).0;
2989 let next_line_start = buffer.clip_point(
2990 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2991 Bias::Left,
2992 );
2993
2994 if line_start < original_range.start {
2995 head = line_start
2996 } else {
2997 head = next_line_start
2998 }
2999
3000 if head <= original_range.start {
3001 tail = original_range.end;
3002 } else {
3003 tail = original_range.start;
3004 }
3005 }
3006 SelectMode::All => {
3007 return;
3008 }
3009 };
3010
3011 if head < tail {
3012 pending.start = buffer.anchor_before(head);
3013 pending.end = buffer.anchor_before(tail);
3014 pending.reversed = true;
3015 } else {
3016 pending.start = buffer.anchor_before(tail);
3017 pending.end = buffer.anchor_before(head);
3018 pending.reversed = false;
3019 }
3020
3021 self.change_selections(None, cx, |s| {
3022 s.set_pending(pending, mode);
3023 });
3024 } else {
3025 log::error!("update_selection dispatched with no pending selection");
3026 return;
3027 }
3028
3029 self.apply_scroll_delta(scroll_delta, cx);
3030 cx.notify();
3031 }
3032
3033 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3034 self.columnar_selection_tail.take();
3035 if self.selections.pending_anchor().is_some() {
3036 let selections = self.selections.all::<usize>(cx);
3037 self.change_selections(None, cx, |s| {
3038 s.select(selections);
3039 s.clear_pending();
3040 });
3041 }
3042 }
3043
3044 fn select_columns(
3045 &mut self,
3046 tail: DisplayPoint,
3047 head: DisplayPoint,
3048 goal_column: u32,
3049 display_map: &DisplaySnapshot,
3050 cx: &mut ViewContext<Self>,
3051 ) {
3052 let start_row = cmp::min(tail.row(), head.row());
3053 let end_row = cmp::max(tail.row(), head.row());
3054 let start_column = cmp::min(tail.column(), goal_column);
3055 let end_column = cmp::max(tail.column(), goal_column);
3056 let reversed = start_column < tail.column();
3057
3058 let selection_ranges = (start_row.0..=end_row.0)
3059 .map(DisplayRow)
3060 .filter_map(|row| {
3061 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3062 let start = display_map
3063 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3064 .to_point(display_map);
3065 let end = display_map
3066 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3067 .to_point(display_map);
3068 if reversed {
3069 Some(end..start)
3070 } else {
3071 Some(start..end)
3072 }
3073 } else {
3074 None
3075 }
3076 })
3077 .collect::<Vec<_>>();
3078
3079 self.change_selections(None, cx, |s| {
3080 s.select_ranges(selection_ranges);
3081 });
3082 cx.notify();
3083 }
3084
3085 pub fn has_pending_nonempty_selection(&self) -> bool {
3086 let pending_nonempty_selection = match self.selections.pending_anchor() {
3087 Some(Selection { start, end, .. }) => start != end,
3088 None => false,
3089 };
3090
3091 pending_nonempty_selection
3092 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3093 }
3094
3095 pub fn has_pending_selection(&self) -> bool {
3096 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3097 }
3098
3099 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3100 if self.clear_expanded_diff_hunks(cx) {
3101 cx.notify();
3102 return;
3103 }
3104 if self.dismiss_menus_and_popups(true, cx) {
3105 return;
3106 }
3107
3108 if self.mode == EditorMode::Full
3109 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3110 {
3111 return;
3112 }
3113
3114 cx.propagate();
3115 }
3116
3117 pub fn dismiss_menus_and_popups(
3118 &mut self,
3119 should_report_inline_completion_event: bool,
3120 cx: &mut ViewContext<Self>,
3121 ) -> bool {
3122 if self.take_rename(false, cx).is_some() {
3123 return true;
3124 }
3125
3126 if hide_hover(self, cx) {
3127 return true;
3128 }
3129
3130 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3131 return true;
3132 }
3133
3134 if self.hide_context_menu(cx).is_some() {
3135 return true;
3136 }
3137
3138 if self.mouse_context_menu.take().is_some() {
3139 return true;
3140 }
3141
3142 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3143 return true;
3144 }
3145
3146 if self.snippet_stack.pop().is_some() {
3147 return true;
3148 }
3149
3150 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3151 self.dismiss_diagnostics(cx);
3152 return true;
3153 }
3154
3155 false
3156 }
3157
3158 fn linked_editing_ranges_for(
3159 &self,
3160 selection: Range<text::Anchor>,
3161 cx: &AppContext,
3162 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3163 if self.linked_edit_ranges.is_empty() {
3164 return None;
3165 }
3166 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3167 selection.end.buffer_id.and_then(|end_buffer_id| {
3168 if selection.start.buffer_id != Some(end_buffer_id) {
3169 return None;
3170 }
3171 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3172 let snapshot = buffer.read(cx).snapshot();
3173 self.linked_edit_ranges
3174 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3175 .map(|ranges| (ranges, snapshot, buffer))
3176 })?;
3177 use text::ToOffset as TO;
3178 // find offset from the start of current range to current cursor position
3179 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3180
3181 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3182 let start_difference = start_offset - start_byte_offset;
3183 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3184 let end_difference = end_offset - start_byte_offset;
3185 // Current range has associated linked ranges.
3186 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3187 for range in linked_ranges.iter() {
3188 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3189 let end_offset = start_offset + end_difference;
3190 let start_offset = start_offset + start_difference;
3191 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3192 continue;
3193 }
3194 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3195 if s.start.buffer_id != selection.start.buffer_id
3196 || s.end.buffer_id != selection.end.buffer_id
3197 {
3198 return false;
3199 }
3200 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3201 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3202 }) {
3203 continue;
3204 }
3205 let start = buffer_snapshot.anchor_after(start_offset);
3206 let end = buffer_snapshot.anchor_after(end_offset);
3207 linked_edits
3208 .entry(buffer.clone())
3209 .or_default()
3210 .push(start..end);
3211 }
3212 Some(linked_edits)
3213 }
3214
3215 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3216 let text: Arc<str> = text.into();
3217
3218 if self.read_only(cx) {
3219 return;
3220 }
3221
3222 let selections = self.selections.all_adjusted(cx);
3223 let mut bracket_inserted = false;
3224 let mut edits = Vec::new();
3225 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3226 let mut new_selections = Vec::with_capacity(selections.len());
3227 let mut new_autoclose_regions = Vec::new();
3228 let snapshot = self.buffer.read(cx).read(cx);
3229
3230 for (selection, autoclose_region) in
3231 self.selections_with_autoclose_regions(selections, &snapshot)
3232 {
3233 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3234 // Determine if the inserted text matches the opening or closing
3235 // bracket of any of this language's bracket pairs.
3236 let mut bracket_pair = None;
3237 let mut is_bracket_pair_start = false;
3238 let mut is_bracket_pair_end = false;
3239 if !text.is_empty() {
3240 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3241 // and they are removing the character that triggered IME popup.
3242 for (pair, enabled) in scope.brackets() {
3243 if !pair.close && !pair.surround {
3244 continue;
3245 }
3246
3247 if enabled && pair.start.ends_with(text.as_ref()) {
3248 bracket_pair = Some(pair.clone());
3249 is_bracket_pair_start = true;
3250 break;
3251 }
3252 if pair.end.as_str() == text.as_ref() {
3253 bracket_pair = Some(pair.clone());
3254 is_bracket_pair_end = true;
3255 break;
3256 }
3257 }
3258 }
3259
3260 if let Some(bracket_pair) = bracket_pair {
3261 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3262 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3263 let auto_surround =
3264 self.use_auto_surround && snapshot_settings.use_auto_surround;
3265 if selection.is_empty() {
3266 if is_bracket_pair_start {
3267 let prefix_len = bracket_pair.start.len() - text.len();
3268
3269 // If the inserted text is a suffix of an opening bracket and the
3270 // selection is preceded by the rest of the opening bracket, then
3271 // insert the closing bracket.
3272 let following_text_allows_autoclose = snapshot
3273 .chars_at(selection.start)
3274 .next()
3275 .map_or(true, |c| scope.should_autoclose_before(c));
3276 let preceding_text_matches_prefix = prefix_len == 0
3277 || (selection.start.column >= (prefix_len as u32)
3278 && snapshot.contains_str_at(
3279 Point::new(
3280 selection.start.row,
3281 selection.start.column - (prefix_len as u32),
3282 ),
3283 &bracket_pair.start[..prefix_len],
3284 ));
3285
3286 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3287 && bracket_pair.start.len() == 1
3288 {
3289 let target = bracket_pair.start.chars().next().unwrap();
3290 let current_line_count = snapshot
3291 .reversed_chars_at(selection.start)
3292 .take_while(|&c| c != '\n')
3293 .filter(|&c| c == target)
3294 .count();
3295 current_line_count % 2 == 1
3296 } else {
3297 false
3298 };
3299
3300 if autoclose
3301 && bracket_pair.close
3302 && following_text_allows_autoclose
3303 && preceding_text_matches_prefix
3304 && !is_closing_quote
3305 {
3306 let anchor = snapshot.anchor_before(selection.end);
3307 new_selections.push((selection.map(|_| anchor), text.len()));
3308 new_autoclose_regions.push((
3309 anchor,
3310 text.len(),
3311 selection.id,
3312 bracket_pair.clone(),
3313 ));
3314 edits.push((
3315 selection.range(),
3316 format!("{}{}", text, bracket_pair.end).into(),
3317 ));
3318 bracket_inserted = true;
3319 continue;
3320 }
3321 }
3322
3323 if let Some(region) = autoclose_region {
3324 // If the selection is followed by an auto-inserted closing bracket,
3325 // then don't insert that closing bracket again; just move the selection
3326 // past the closing bracket.
3327 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3328 && text.as_ref() == region.pair.end.as_str();
3329 if should_skip {
3330 let anchor = snapshot.anchor_after(selection.end);
3331 new_selections
3332 .push((selection.map(|_| anchor), region.pair.end.len()));
3333 continue;
3334 }
3335 }
3336
3337 let always_treat_brackets_as_autoclosed = snapshot
3338 .settings_at(selection.start, cx)
3339 .always_treat_brackets_as_autoclosed;
3340 if always_treat_brackets_as_autoclosed
3341 && is_bracket_pair_end
3342 && snapshot.contains_str_at(selection.end, text.as_ref())
3343 {
3344 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3345 // and the inserted text is a closing bracket and the selection is followed
3346 // by the closing bracket then move the selection past the closing bracket.
3347 let anchor = snapshot.anchor_after(selection.end);
3348 new_selections.push((selection.map(|_| anchor), text.len()));
3349 continue;
3350 }
3351 }
3352 // If an opening bracket is 1 character long and is typed while
3353 // text is selected, then surround that text with the bracket pair.
3354 else if auto_surround
3355 && bracket_pair.surround
3356 && is_bracket_pair_start
3357 && bracket_pair.start.chars().count() == 1
3358 {
3359 edits.push((selection.start..selection.start, text.clone()));
3360 edits.push((
3361 selection.end..selection.end,
3362 bracket_pair.end.as_str().into(),
3363 ));
3364 bracket_inserted = true;
3365 new_selections.push((
3366 Selection {
3367 id: selection.id,
3368 start: snapshot.anchor_after(selection.start),
3369 end: snapshot.anchor_before(selection.end),
3370 reversed: selection.reversed,
3371 goal: selection.goal,
3372 },
3373 0,
3374 ));
3375 continue;
3376 }
3377 }
3378 }
3379
3380 if self.auto_replace_emoji_shortcode
3381 && selection.is_empty()
3382 && text.as_ref().ends_with(':')
3383 {
3384 if let Some(possible_emoji_short_code) =
3385 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3386 {
3387 if !possible_emoji_short_code.is_empty() {
3388 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3389 let emoji_shortcode_start = Point::new(
3390 selection.start.row,
3391 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3392 );
3393
3394 // Remove shortcode from buffer
3395 edits.push((
3396 emoji_shortcode_start..selection.start,
3397 "".to_string().into(),
3398 ));
3399 new_selections.push((
3400 Selection {
3401 id: selection.id,
3402 start: snapshot.anchor_after(emoji_shortcode_start),
3403 end: snapshot.anchor_before(selection.start),
3404 reversed: selection.reversed,
3405 goal: selection.goal,
3406 },
3407 0,
3408 ));
3409
3410 // Insert emoji
3411 let selection_start_anchor = snapshot.anchor_after(selection.start);
3412 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3413 edits.push((selection.start..selection.end, emoji.to_string().into()));
3414
3415 continue;
3416 }
3417 }
3418 }
3419 }
3420
3421 // If not handling any auto-close operation, then just replace the selected
3422 // text with the given input and move the selection to the end of the
3423 // newly inserted text.
3424 let anchor = snapshot.anchor_after(selection.end);
3425 if !self.linked_edit_ranges.is_empty() {
3426 let start_anchor = snapshot.anchor_before(selection.start);
3427
3428 let is_word_char = text.chars().next().map_or(true, |char| {
3429 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3430 classifier.is_word(char)
3431 });
3432
3433 if is_word_char {
3434 if let Some(ranges) = self
3435 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3436 {
3437 for (buffer, edits) in ranges {
3438 linked_edits
3439 .entry(buffer.clone())
3440 .or_default()
3441 .extend(edits.into_iter().map(|range| (range, text.clone())));
3442 }
3443 }
3444 }
3445 }
3446
3447 new_selections.push((selection.map(|_| anchor), 0));
3448 edits.push((selection.start..selection.end, text.clone()));
3449 }
3450
3451 drop(snapshot);
3452
3453 self.transact(cx, |this, cx| {
3454 this.buffer.update(cx, |buffer, cx| {
3455 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3456 });
3457 for (buffer, edits) in linked_edits {
3458 buffer.update(cx, |buffer, cx| {
3459 let snapshot = buffer.snapshot();
3460 let edits = edits
3461 .into_iter()
3462 .map(|(range, text)| {
3463 use text::ToPoint as TP;
3464 let end_point = TP::to_point(&range.end, &snapshot);
3465 let start_point = TP::to_point(&range.start, &snapshot);
3466 (start_point..end_point, text)
3467 })
3468 .sorted_by_key(|(range, _)| range.start)
3469 .collect::<Vec<_>>();
3470 buffer.edit(edits, None, cx);
3471 })
3472 }
3473 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3474 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3475 let snapshot = this.buffer.read(cx).read(cx);
3476 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3477 .zip(new_selection_deltas)
3478 .map(|(selection, delta)| Selection {
3479 id: selection.id,
3480 start: selection.start + delta,
3481 end: selection.end + delta,
3482 reversed: selection.reversed,
3483 goal: SelectionGoal::None,
3484 })
3485 .collect::<Vec<_>>();
3486
3487 let mut i = 0;
3488 for (position, delta, selection_id, pair) in new_autoclose_regions {
3489 let position = position.to_offset(&snapshot) + delta;
3490 let start = snapshot.anchor_before(position);
3491 let end = snapshot.anchor_after(position);
3492 while let Some(existing_state) = this.autoclose_regions.get(i) {
3493 match existing_state.range.start.cmp(&start, &snapshot) {
3494 Ordering::Less => i += 1,
3495 Ordering::Greater => break,
3496 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3497 Ordering::Less => i += 1,
3498 Ordering::Equal => break,
3499 Ordering::Greater => break,
3500 },
3501 }
3502 }
3503 this.autoclose_regions.insert(
3504 i,
3505 AutocloseRegion {
3506 selection_id,
3507 range: start..end,
3508 pair,
3509 },
3510 );
3511 }
3512
3513 drop(snapshot);
3514 let had_active_inline_completion = this.has_active_inline_completion(cx);
3515 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3516 s.select(new_selections)
3517 });
3518
3519 if !bracket_inserted {
3520 if let Some(on_type_format_task) =
3521 this.trigger_on_type_formatting(text.to_string(), cx)
3522 {
3523 on_type_format_task.detach_and_log_err(cx);
3524 }
3525 }
3526
3527 let editor_settings = EditorSettings::get_global(cx);
3528 if bracket_inserted
3529 && (editor_settings.auto_signature_help
3530 || editor_settings.show_signature_help_after_edits)
3531 {
3532 this.show_signature_help(&ShowSignatureHelp, cx);
3533 }
3534
3535 let trigger_in_words = !had_active_inline_completion;
3536 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3537 linked_editing_ranges::refresh_linked_ranges(this, cx);
3538 this.refresh_inline_completion(true, false, cx);
3539 });
3540 }
3541
3542 fn find_possible_emoji_shortcode_at_position(
3543 snapshot: &MultiBufferSnapshot,
3544 position: Point,
3545 ) -> Option<String> {
3546 let mut chars = Vec::new();
3547 let mut found_colon = false;
3548 for char in snapshot.reversed_chars_at(position).take(100) {
3549 // Found a possible emoji shortcode in the middle of the buffer
3550 if found_colon {
3551 if char.is_whitespace() {
3552 chars.reverse();
3553 return Some(chars.iter().collect());
3554 }
3555 // If the previous character is not a whitespace, we are in the middle of a word
3556 // and we only want to complete the shortcode if the word is made up of other emojis
3557 let mut containing_word = String::new();
3558 for ch in snapshot
3559 .reversed_chars_at(position)
3560 .skip(chars.len() + 1)
3561 .take(100)
3562 {
3563 if ch.is_whitespace() {
3564 break;
3565 }
3566 containing_word.push(ch);
3567 }
3568 let containing_word = containing_word.chars().rev().collect::<String>();
3569 if util::word_consists_of_emojis(containing_word.as_str()) {
3570 chars.reverse();
3571 return Some(chars.iter().collect());
3572 }
3573 }
3574
3575 if char.is_whitespace() || !char.is_ascii() {
3576 return None;
3577 }
3578 if char == ':' {
3579 found_colon = true;
3580 } else {
3581 chars.push(char);
3582 }
3583 }
3584 // Found a possible emoji shortcode at the beginning of the buffer
3585 chars.reverse();
3586 Some(chars.iter().collect())
3587 }
3588
3589 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3590 self.transact(cx, |this, cx| {
3591 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3592 let selections = this.selections.all::<usize>(cx);
3593 let multi_buffer = this.buffer.read(cx);
3594 let buffer = multi_buffer.snapshot(cx);
3595 selections
3596 .iter()
3597 .map(|selection| {
3598 let start_point = selection.start.to_point(&buffer);
3599 let mut indent =
3600 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3601 indent.len = cmp::min(indent.len, start_point.column);
3602 let start = selection.start;
3603 let end = selection.end;
3604 let selection_is_empty = start == end;
3605 let language_scope = buffer.language_scope_at(start);
3606 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3607 &language_scope
3608 {
3609 let leading_whitespace_len = buffer
3610 .reversed_chars_at(start)
3611 .take_while(|c| c.is_whitespace() && *c != '\n')
3612 .map(|c| c.len_utf8())
3613 .sum::<usize>();
3614
3615 let trailing_whitespace_len = buffer
3616 .chars_at(end)
3617 .take_while(|c| c.is_whitespace() && *c != '\n')
3618 .map(|c| c.len_utf8())
3619 .sum::<usize>();
3620
3621 let insert_extra_newline =
3622 language.brackets().any(|(pair, enabled)| {
3623 let pair_start = pair.start.trim_end();
3624 let pair_end = pair.end.trim_start();
3625
3626 enabled
3627 && pair.newline
3628 && buffer.contains_str_at(
3629 end + trailing_whitespace_len,
3630 pair_end,
3631 )
3632 && buffer.contains_str_at(
3633 (start - leading_whitespace_len)
3634 .saturating_sub(pair_start.len()),
3635 pair_start,
3636 )
3637 });
3638
3639 // Comment extension on newline is allowed only for cursor selections
3640 let comment_delimiter = maybe!({
3641 if !selection_is_empty {
3642 return None;
3643 }
3644
3645 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3646 return None;
3647 }
3648
3649 let delimiters = language.line_comment_prefixes();
3650 let max_len_of_delimiter =
3651 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3652 let (snapshot, range) =
3653 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3654
3655 let mut index_of_first_non_whitespace = 0;
3656 let comment_candidate = snapshot
3657 .chars_for_range(range)
3658 .skip_while(|c| {
3659 let should_skip = c.is_whitespace();
3660 if should_skip {
3661 index_of_first_non_whitespace += 1;
3662 }
3663 should_skip
3664 })
3665 .take(max_len_of_delimiter)
3666 .collect::<String>();
3667 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3668 comment_candidate.starts_with(comment_prefix.as_ref())
3669 })?;
3670 let cursor_is_placed_after_comment_marker =
3671 index_of_first_non_whitespace + comment_prefix.len()
3672 <= start_point.column as usize;
3673 if cursor_is_placed_after_comment_marker {
3674 Some(comment_prefix.clone())
3675 } else {
3676 None
3677 }
3678 });
3679 (comment_delimiter, insert_extra_newline)
3680 } else {
3681 (None, false)
3682 };
3683
3684 let capacity_for_delimiter = comment_delimiter
3685 .as_deref()
3686 .map(str::len)
3687 .unwrap_or_default();
3688 let mut new_text =
3689 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3690 new_text.push('\n');
3691 new_text.extend(indent.chars());
3692 if let Some(delimiter) = &comment_delimiter {
3693 new_text.push_str(delimiter);
3694 }
3695 if insert_extra_newline {
3696 new_text = new_text.repeat(2);
3697 }
3698
3699 let anchor = buffer.anchor_after(end);
3700 let new_selection = selection.map(|_| anchor);
3701 (
3702 (start..end, new_text),
3703 (insert_extra_newline, new_selection),
3704 )
3705 })
3706 .unzip()
3707 };
3708
3709 this.edit_with_autoindent(edits, cx);
3710 let buffer = this.buffer.read(cx).snapshot(cx);
3711 let new_selections = selection_fixup_info
3712 .into_iter()
3713 .map(|(extra_newline_inserted, new_selection)| {
3714 let mut cursor = new_selection.end.to_point(&buffer);
3715 if extra_newline_inserted {
3716 cursor.row -= 1;
3717 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3718 }
3719 new_selection.map(|_| cursor)
3720 })
3721 .collect();
3722
3723 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3724 this.refresh_inline_completion(true, false, cx);
3725 });
3726 }
3727
3728 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3729 let buffer = self.buffer.read(cx);
3730 let snapshot = buffer.snapshot(cx);
3731
3732 let mut edits = Vec::new();
3733 let mut rows = Vec::new();
3734
3735 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3736 let cursor = selection.head();
3737 let row = cursor.row;
3738
3739 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3740
3741 let newline = "\n".to_string();
3742 edits.push((start_of_line..start_of_line, newline));
3743
3744 rows.push(row + rows_inserted as u32);
3745 }
3746
3747 self.transact(cx, |editor, cx| {
3748 editor.edit(edits, cx);
3749
3750 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3751 let mut index = 0;
3752 s.move_cursors_with(|map, _, _| {
3753 let row = rows[index];
3754 index += 1;
3755
3756 let point = Point::new(row, 0);
3757 let boundary = map.next_line_boundary(point).1;
3758 let clipped = map.clip_point(boundary, Bias::Left);
3759
3760 (clipped, SelectionGoal::None)
3761 });
3762 });
3763
3764 let mut indent_edits = Vec::new();
3765 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3766 for row in rows {
3767 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3768 for (row, indent) in indents {
3769 if indent.len == 0 {
3770 continue;
3771 }
3772
3773 let text = match indent.kind {
3774 IndentKind::Space => " ".repeat(indent.len as usize),
3775 IndentKind::Tab => "\t".repeat(indent.len as usize),
3776 };
3777 let point = Point::new(row.0, 0);
3778 indent_edits.push((point..point, text));
3779 }
3780 }
3781 editor.edit(indent_edits, cx);
3782 });
3783 }
3784
3785 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3786 let buffer = self.buffer.read(cx);
3787 let snapshot = buffer.snapshot(cx);
3788 //
3789 //
3790 //
3791
3792 let mut edits = Vec::new();
3793 let mut rows = Vec::new();
3794 let mut rows_inserted = 0;
3795
3796 for selection in self.selections.all_adjusted(cx) {
3797 let cursor = selection.head();
3798 let row = cursor.row;
3799
3800 let point = Point::new(row + 1, 0);
3801 let start_of_line = snapshot.clip_point(point, Bias::Left);
3802
3803 let newline = "\n".to_string();
3804 edits.push((start_of_line..start_of_line, newline));
3805
3806 rows_inserted += 1;
3807 rows.push(row + rows_inserted);
3808 }
3809
3810 self.transact(cx, |editor, cx| {
3811 editor.edit(edits, cx);
3812
3813 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3814 let mut index = 0;
3815 s.move_cursors_with(|map, _, _| {
3816 let row = rows[index];
3817 index += 1;
3818
3819 let point = Point::new(row, 0);
3820 let boundary = map.next_line_boundary(point).1;
3821 let clipped = map.clip_point(boundary, Bias::Left);
3822
3823 (clipped, SelectionGoal::None)
3824 });
3825 });
3826
3827 let mut indent_edits = Vec::new();
3828 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3829 for row in rows {
3830 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3831 for (row, indent) in indents {
3832 if indent.len == 0 {
3833 continue;
3834 }
3835
3836 let text = match indent.kind {
3837 IndentKind::Space => " ".repeat(indent.len as usize),
3838 IndentKind::Tab => "\t".repeat(indent.len as usize),
3839 };
3840 let point = Point::new(row.0, 0);
3841 indent_edits.push((point..point, text));
3842 }
3843 }
3844 editor.edit(indent_edits, cx);
3845 });
3846 }
3847
3848 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3849 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3850 original_indent_columns: Vec::new(),
3851 });
3852 self.insert_with_autoindent_mode(text, autoindent, cx);
3853 }
3854
3855 fn insert_with_autoindent_mode(
3856 &mut self,
3857 text: &str,
3858 autoindent_mode: Option<AutoindentMode>,
3859 cx: &mut ViewContext<Self>,
3860 ) {
3861 if self.read_only(cx) {
3862 return;
3863 }
3864
3865 let text: Arc<str> = text.into();
3866 self.transact(cx, |this, cx| {
3867 let old_selections = this.selections.all_adjusted(cx);
3868 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3869 let anchors = {
3870 let snapshot = buffer.read(cx);
3871 old_selections
3872 .iter()
3873 .map(|s| {
3874 let anchor = snapshot.anchor_after(s.head());
3875 s.map(|_| anchor)
3876 })
3877 .collect::<Vec<_>>()
3878 };
3879 buffer.edit(
3880 old_selections
3881 .iter()
3882 .map(|s| (s.start..s.end, text.clone())),
3883 autoindent_mode,
3884 cx,
3885 );
3886 anchors
3887 });
3888
3889 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3890 s.select_anchors(selection_anchors);
3891 })
3892 });
3893 }
3894
3895 fn trigger_completion_on_input(
3896 &mut self,
3897 text: &str,
3898 trigger_in_words: bool,
3899 cx: &mut ViewContext<Self>,
3900 ) {
3901 if self.is_completion_trigger(text, trigger_in_words, cx) {
3902 self.show_completions(
3903 &ShowCompletions {
3904 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3905 },
3906 cx,
3907 );
3908 } else {
3909 self.hide_context_menu(cx);
3910 }
3911 }
3912
3913 fn is_completion_trigger(
3914 &self,
3915 text: &str,
3916 trigger_in_words: bool,
3917 cx: &mut ViewContext<Self>,
3918 ) -> bool {
3919 let position = self.selections.newest_anchor().head();
3920 let multibuffer = self.buffer.read(cx);
3921 let Some(buffer) = position
3922 .buffer_id
3923 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3924 else {
3925 return false;
3926 };
3927
3928 if let Some(completion_provider) = &self.completion_provider {
3929 completion_provider.is_completion_trigger(
3930 &buffer,
3931 position.text_anchor,
3932 text,
3933 trigger_in_words,
3934 cx,
3935 )
3936 } else {
3937 false
3938 }
3939 }
3940
3941 /// If any empty selections is touching the start of its innermost containing autoclose
3942 /// region, expand it to select the brackets.
3943 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3944 let selections = self.selections.all::<usize>(cx);
3945 let buffer = self.buffer.read(cx).read(cx);
3946 let new_selections = self
3947 .selections_with_autoclose_regions(selections, &buffer)
3948 .map(|(mut selection, region)| {
3949 if !selection.is_empty() {
3950 return selection;
3951 }
3952
3953 if let Some(region) = region {
3954 let mut range = region.range.to_offset(&buffer);
3955 if selection.start == range.start && range.start >= region.pair.start.len() {
3956 range.start -= region.pair.start.len();
3957 if buffer.contains_str_at(range.start, ®ion.pair.start)
3958 && buffer.contains_str_at(range.end, ®ion.pair.end)
3959 {
3960 range.end += region.pair.end.len();
3961 selection.start = range.start;
3962 selection.end = range.end;
3963
3964 return selection;
3965 }
3966 }
3967 }
3968
3969 let always_treat_brackets_as_autoclosed = buffer
3970 .settings_at(selection.start, cx)
3971 .always_treat_brackets_as_autoclosed;
3972
3973 if !always_treat_brackets_as_autoclosed {
3974 return selection;
3975 }
3976
3977 if let Some(scope) = buffer.language_scope_at(selection.start) {
3978 for (pair, enabled) in scope.brackets() {
3979 if !enabled || !pair.close {
3980 continue;
3981 }
3982
3983 if buffer.contains_str_at(selection.start, &pair.end) {
3984 let pair_start_len = pair.start.len();
3985 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3986 {
3987 selection.start -= pair_start_len;
3988 selection.end += pair.end.len();
3989
3990 return selection;
3991 }
3992 }
3993 }
3994 }
3995
3996 selection
3997 })
3998 .collect();
3999
4000 drop(buffer);
4001 self.change_selections(None, cx, |selections| selections.select(new_selections));
4002 }
4003
4004 /// Iterate the given selections, and for each one, find the smallest surrounding
4005 /// autoclose region. This uses the ordering of the selections and the autoclose
4006 /// regions to avoid repeated comparisons.
4007 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4008 &'a self,
4009 selections: impl IntoIterator<Item = Selection<D>>,
4010 buffer: &'a MultiBufferSnapshot,
4011 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4012 let mut i = 0;
4013 let mut regions = self.autoclose_regions.as_slice();
4014 selections.into_iter().map(move |selection| {
4015 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4016
4017 let mut enclosing = None;
4018 while let Some(pair_state) = regions.get(i) {
4019 if pair_state.range.end.to_offset(buffer) < range.start {
4020 regions = ®ions[i + 1..];
4021 i = 0;
4022 } else if pair_state.range.start.to_offset(buffer) > range.end {
4023 break;
4024 } else {
4025 if pair_state.selection_id == selection.id {
4026 enclosing = Some(pair_state);
4027 }
4028 i += 1;
4029 }
4030 }
4031
4032 (selection.clone(), enclosing)
4033 })
4034 }
4035
4036 /// Remove any autoclose regions that no longer contain their selection.
4037 fn invalidate_autoclose_regions(
4038 &mut self,
4039 mut selections: &[Selection<Anchor>],
4040 buffer: &MultiBufferSnapshot,
4041 ) {
4042 self.autoclose_regions.retain(|state| {
4043 let mut i = 0;
4044 while let Some(selection) = selections.get(i) {
4045 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4046 selections = &selections[1..];
4047 continue;
4048 }
4049 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4050 break;
4051 }
4052 if selection.id == state.selection_id {
4053 return true;
4054 } else {
4055 i += 1;
4056 }
4057 }
4058 false
4059 });
4060 }
4061
4062 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4063 let offset = position.to_offset(buffer);
4064 let (word_range, kind) = buffer.surrounding_word(offset, true);
4065 if offset > word_range.start && kind == Some(CharKind::Word) {
4066 Some(
4067 buffer
4068 .text_for_range(word_range.start..offset)
4069 .collect::<String>(),
4070 )
4071 } else {
4072 None
4073 }
4074 }
4075
4076 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4077 self.refresh_inlay_hints(
4078 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4079 cx,
4080 );
4081 }
4082
4083 pub fn inlay_hints_enabled(&self) -> bool {
4084 self.inlay_hint_cache.enabled
4085 }
4086
4087 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4088 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4089 return;
4090 }
4091
4092 let reason_description = reason.description();
4093 let ignore_debounce = matches!(
4094 reason,
4095 InlayHintRefreshReason::SettingsChange(_)
4096 | InlayHintRefreshReason::Toggle(_)
4097 | InlayHintRefreshReason::ExcerptsRemoved(_)
4098 );
4099 let (invalidate_cache, required_languages) = match reason {
4100 InlayHintRefreshReason::Toggle(enabled) => {
4101 self.inlay_hint_cache.enabled = enabled;
4102 if enabled {
4103 (InvalidationStrategy::RefreshRequested, None)
4104 } else {
4105 self.inlay_hint_cache.clear();
4106 self.splice_inlays(
4107 self.visible_inlay_hints(cx)
4108 .iter()
4109 .map(|inlay| inlay.id)
4110 .collect(),
4111 Vec::new(),
4112 cx,
4113 );
4114 return;
4115 }
4116 }
4117 InlayHintRefreshReason::SettingsChange(new_settings) => {
4118 match self.inlay_hint_cache.update_settings(
4119 &self.buffer,
4120 new_settings,
4121 self.visible_inlay_hints(cx),
4122 cx,
4123 ) {
4124 ControlFlow::Break(Some(InlaySplice {
4125 to_remove,
4126 to_insert,
4127 })) => {
4128 self.splice_inlays(to_remove, to_insert, cx);
4129 return;
4130 }
4131 ControlFlow::Break(None) => return,
4132 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4133 }
4134 }
4135 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4136 if let Some(InlaySplice {
4137 to_remove,
4138 to_insert,
4139 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4140 {
4141 self.splice_inlays(to_remove, to_insert, cx);
4142 }
4143 return;
4144 }
4145 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4146 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4147 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4148 }
4149 InlayHintRefreshReason::RefreshRequested => {
4150 (InvalidationStrategy::RefreshRequested, None)
4151 }
4152 };
4153
4154 if let Some(InlaySplice {
4155 to_remove,
4156 to_insert,
4157 }) = self.inlay_hint_cache.spawn_hint_refresh(
4158 reason_description,
4159 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4160 invalidate_cache,
4161 ignore_debounce,
4162 cx,
4163 ) {
4164 self.splice_inlays(to_remove, to_insert, cx);
4165 }
4166 }
4167
4168 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4169 self.display_map
4170 .read(cx)
4171 .current_inlays()
4172 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4173 .cloned()
4174 .collect()
4175 }
4176
4177 pub fn excerpts_for_inlay_hints_query(
4178 &self,
4179 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4180 cx: &mut ViewContext<Editor>,
4181 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4182 let Some(project) = self.project.as_ref() else {
4183 return HashMap::default();
4184 };
4185 let project = project.read(cx);
4186 let multi_buffer = self.buffer().read(cx);
4187 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4188 let multi_buffer_visible_start = self
4189 .scroll_manager
4190 .anchor()
4191 .anchor
4192 .to_point(&multi_buffer_snapshot);
4193 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4194 multi_buffer_visible_start
4195 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4196 Bias::Left,
4197 );
4198 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4199 multi_buffer
4200 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4201 .into_iter()
4202 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4203 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4204 let buffer = buffer_handle.read(cx);
4205 let buffer_file = project::File::from_dyn(buffer.file())?;
4206 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4207 let worktree_entry = buffer_worktree
4208 .read(cx)
4209 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4210 if worktree_entry.is_ignored {
4211 return None;
4212 }
4213
4214 let language = buffer.language()?;
4215 if let Some(restrict_to_languages) = restrict_to_languages {
4216 if !restrict_to_languages.contains(language) {
4217 return None;
4218 }
4219 }
4220 Some((
4221 excerpt_id,
4222 (
4223 buffer_handle,
4224 buffer.version().clone(),
4225 excerpt_visible_range,
4226 ),
4227 ))
4228 })
4229 .collect()
4230 }
4231
4232 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4233 TextLayoutDetails {
4234 text_system: cx.text_system().clone(),
4235 editor_style: self.style.clone().unwrap(),
4236 rem_size: cx.rem_size(),
4237 scroll_anchor: self.scroll_manager.anchor(),
4238 visible_rows: self.visible_line_count(),
4239 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4240 }
4241 }
4242
4243 fn splice_inlays(
4244 &self,
4245 to_remove: Vec<InlayId>,
4246 to_insert: Vec<Inlay>,
4247 cx: &mut ViewContext<Self>,
4248 ) {
4249 self.display_map.update(cx, |display_map, cx| {
4250 display_map.splice_inlays(to_remove, to_insert, cx);
4251 });
4252 cx.notify();
4253 }
4254
4255 fn trigger_on_type_formatting(
4256 &self,
4257 input: String,
4258 cx: &mut ViewContext<Self>,
4259 ) -> Option<Task<Result<()>>> {
4260 if input.len() != 1 {
4261 return None;
4262 }
4263
4264 let project = self.project.as_ref()?;
4265 let position = self.selections.newest_anchor().head();
4266 let (buffer, buffer_position) = self
4267 .buffer
4268 .read(cx)
4269 .text_anchor_for_position(position, cx)?;
4270
4271 let settings = language_settings::language_settings(
4272 buffer
4273 .read(cx)
4274 .language_at(buffer_position)
4275 .map(|l| l.name()),
4276 buffer.read(cx).file(),
4277 cx,
4278 );
4279 if !settings.use_on_type_format {
4280 return None;
4281 }
4282
4283 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4284 // hence we do LSP request & edit on host side only — add formats to host's history.
4285 let push_to_lsp_host_history = true;
4286 // If this is not the host, append its history with new edits.
4287 let push_to_client_history = project.read(cx).is_via_collab();
4288
4289 let on_type_formatting = project.update(cx, |project, cx| {
4290 project.on_type_format(
4291 buffer.clone(),
4292 buffer_position,
4293 input,
4294 push_to_lsp_host_history,
4295 cx,
4296 )
4297 });
4298 Some(cx.spawn(|editor, mut cx| async move {
4299 if let Some(transaction) = on_type_formatting.await? {
4300 if push_to_client_history {
4301 buffer
4302 .update(&mut cx, |buffer, _| {
4303 buffer.push_transaction(transaction, Instant::now());
4304 })
4305 .ok();
4306 }
4307 editor.update(&mut cx, |editor, cx| {
4308 editor.refresh_document_highlights(cx);
4309 })?;
4310 }
4311 Ok(())
4312 }))
4313 }
4314
4315 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4316 if self.pending_rename.is_some() {
4317 return;
4318 }
4319
4320 let Some(provider) = self.completion_provider.as_ref() else {
4321 return;
4322 };
4323
4324 let position = self.selections.newest_anchor().head();
4325 let (buffer, buffer_position) =
4326 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4327 output
4328 } else {
4329 return;
4330 };
4331
4332 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4333 let is_followup_invoke = {
4334 let context_menu_state = self.context_menu.read();
4335 matches!(
4336 context_menu_state.deref(),
4337 Some(ContextMenu::Completions(_))
4338 )
4339 };
4340 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4341 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4342 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4343 CompletionTriggerKind::TRIGGER_CHARACTER
4344 }
4345
4346 _ => CompletionTriggerKind::INVOKED,
4347 };
4348 let completion_context = CompletionContext {
4349 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4350 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4351 Some(String::from(trigger))
4352 } else {
4353 None
4354 }
4355 }),
4356 trigger_kind,
4357 };
4358 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4359 let sort_completions = provider.sort_completions();
4360
4361 let id = post_inc(&mut self.next_completion_id);
4362 let task = cx.spawn(|this, mut cx| {
4363 async move {
4364 this.update(&mut cx, |this, _| {
4365 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4366 })?;
4367 let completions = completions.await.log_err();
4368 let menu = if let Some(completions) = completions {
4369 let mut menu = CompletionsMenu {
4370 id,
4371 sort_completions,
4372 initial_position: position,
4373 match_candidates: completions
4374 .iter()
4375 .enumerate()
4376 .map(|(id, completion)| {
4377 StringMatchCandidate::new(
4378 id,
4379 completion.label.text[completion.label.filter_range.clone()]
4380 .into(),
4381 )
4382 })
4383 .collect(),
4384 buffer: buffer.clone(),
4385 completions: Arc::new(RwLock::new(completions.into())),
4386 matches: Vec::new().into(),
4387 selected_item: 0,
4388 scroll_handle: UniformListScrollHandle::new(),
4389 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4390 DebouncedDelay::new(),
4391 )),
4392 };
4393 menu.filter(query.as_deref(), cx.background_executor().clone())
4394 .await;
4395
4396 if menu.matches.is_empty() {
4397 None
4398 } else {
4399 this.update(&mut cx, |editor, cx| {
4400 let completions = menu.completions.clone();
4401 let matches = menu.matches.clone();
4402
4403 let delay_ms = EditorSettings::get_global(cx)
4404 .completion_documentation_secondary_query_debounce;
4405 let delay = Duration::from_millis(delay_ms);
4406 editor
4407 .completion_documentation_pre_resolve_debounce
4408 .fire_new(delay, cx, |editor, cx| {
4409 CompletionsMenu::pre_resolve_completion_documentation(
4410 buffer,
4411 completions,
4412 matches,
4413 editor,
4414 cx,
4415 )
4416 });
4417 })
4418 .ok();
4419 Some(menu)
4420 }
4421 } else {
4422 None
4423 };
4424
4425 this.update(&mut cx, |this, cx| {
4426 let mut context_menu = this.context_menu.write();
4427 match context_menu.as_ref() {
4428 None => {}
4429
4430 Some(ContextMenu::Completions(prev_menu)) => {
4431 if prev_menu.id > id {
4432 return;
4433 }
4434 }
4435
4436 _ => return,
4437 }
4438
4439 if this.focus_handle.is_focused(cx) && menu.is_some() {
4440 let menu = menu.unwrap();
4441 *context_menu = Some(ContextMenu::Completions(menu));
4442 drop(context_menu);
4443 this.discard_inline_completion(false, cx);
4444 cx.notify();
4445 } else if this.completion_tasks.len() <= 1 {
4446 // If there are no more completion tasks and the last menu was
4447 // empty, we should hide it. If it was already hidden, we should
4448 // also show the copilot completion when available.
4449 drop(context_menu);
4450 if this.hide_context_menu(cx).is_none() {
4451 this.update_visible_inline_completion(cx);
4452 }
4453 }
4454 })?;
4455
4456 Ok::<_, anyhow::Error>(())
4457 }
4458 .log_err()
4459 });
4460
4461 self.completion_tasks.push((id, task));
4462 }
4463
4464 pub fn confirm_completion(
4465 &mut self,
4466 action: &ConfirmCompletion,
4467 cx: &mut ViewContext<Self>,
4468 ) -> Option<Task<Result<()>>> {
4469 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4470 }
4471
4472 pub fn compose_completion(
4473 &mut self,
4474 action: &ComposeCompletion,
4475 cx: &mut ViewContext<Self>,
4476 ) -> Option<Task<Result<()>>> {
4477 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4478 }
4479
4480 fn do_completion(
4481 &mut self,
4482 item_ix: Option<usize>,
4483 intent: CompletionIntent,
4484 cx: &mut ViewContext<Editor>,
4485 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4486 use language::ToOffset as _;
4487
4488 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4489 menu
4490 } else {
4491 return None;
4492 };
4493
4494 let mat = completions_menu
4495 .matches
4496 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4497 let buffer_handle = completions_menu.buffer;
4498 let completions = completions_menu.completions.read();
4499 let completion = completions.get(mat.candidate_id)?;
4500 cx.stop_propagation();
4501
4502 let snippet;
4503 let text;
4504
4505 if completion.is_snippet() {
4506 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4507 text = snippet.as_ref().unwrap().text.clone();
4508 } else {
4509 snippet = None;
4510 text = completion.new_text.clone();
4511 };
4512 let selections = self.selections.all::<usize>(cx);
4513 let buffer = buffer_handle.read(cx);
4514 let old_range = completion.old_range.to_offset(buffer);
4515 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4516
4517 let newest_selection = self.selections.newest_anchor();
4518 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4519 return None;
4520 }
4521
4522 let lookbehind = newest_selection
4523 .start
4524 .text_anchor
4525 .to_offset(buffer)
4526 .saturating_sub(old_range.start);
4527 let lookahead = old_range
4528 .end
4529 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4530 let mut common_prefix_len = old_text
4531 .bytes()
4532 .zip(text.bytes())
4533 .take_while(|(a, b)| a == b)
4534 .count();
4535
4536 let snapshot = self.buffer.read(cx).snapshot(cx);
4537 let mut range_to_replace: Option<Range<isize>> = None;
4538 let mut ranges = Vec::new();
4539 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4540 for selection in &selections {
4541 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4542 let start = selection.start.saturating_sub(lookbehind);
4543 let end = selection.end + lookahead;
4544 if selection.id == newest_selection.id {
4545 range_to_replace = Some(
4546 ((start + common_prefix_len) as isize - selection.start as isize)
4547 ..(end as isize - selection.start as isize),
4548 );
4549 }
4550 ranges.push(start + common_prefix_len..end);
4551 } else {
4552 common_prefix_len = 0;
4553 ranges.clear();
4554 ranges.extend(selections.iter().map(|s| {
4555 if s.id == newest_selection.id {
4556 range_to_replace = Some(
4557 old_range.start.to_offset_utf16(&snapshot).0 as isize
4558 - selection.start as isize
4559 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4560 - selection.start as isize,
4561 );
4562 old_range.clone()
4563 } else {
4564 s.start..s.end
4565 }
4566 }));
4567 break;
4568 }
4569 if !self.linked_edit_ranges.is_empty() {
4570 let start_anchor = snapshot.anchor_before(selection.head());
4571 let end_anchor = snapshot.anchor_after(selection.tail());
4572 if let Some(ranges) = self
4573 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4574 {
4575 for (buffer, edits) in ranges {
4576 linked_edits.entry(buffer.clone()).or_default().extend(
4577 edits
4578 .into_iter()
4579 .map(|range| (range, text[common_prefix_len..].to_owned())),
4580 );
4581 }
4582 }
4583 }
4584 }
4585 let text = &text[common_prefix_len..];
4586
4587 cx.emit(EditorEvent::InputHandled {
4588 utf16_range_to_replace: range_to_replace,
4589 text: text.into(),
4590 });
4591
4592 self.transact(cx, |this, cx| {
4593 if let Some(mut snippet) = snippet {
4594 snippet.text = text.to_string();
4595 for tabstop in snippet.tabstops.iter_mut().flatten() {
4596 tabstop.start -= common_prefix_len as isize;
4597 tabstop.end -= common_prefix_len as isize;
4598 }
4599
4600 this.insert_snippet(&ranges, snippet, cx).log_err();
4601 } else {
4602 this.buffer.update(cx, |buffer, cx| {
4603 buffer.edit(
4604 ranges.iter().map(|range| (range.clone(), text)),
4605 this.autoindent_mode.clone(),
4606 cx,
4607 );
4608 });
4609 }
4610 for (buffer, edits) in linked_edits {
4611 buffer.update(cx, |buffer, cx| {
4612 let snapshot = buffer.snapshot();
4613 let edits = edits
4614 .into_iter()
4615 .map(|(range, text)| {
4616 use text::ToPoint as TP;
4617 let end_point = TP::to_point(&range.end, &snapshot);
4618 let start_point = TP::to_point(&range.start, &snapshot);
4619 (start_point..end_point, text)
4620 })
4621 .sorted_by_key(|(range, _)| range.start)
4622 .collect::<Vec<_>>();
4623 buffer.edit(edits, None, cx);
4624 })
4625 }
4626
4627 this.refresh_inline_completion(true, false, cx);
4628 });
4629
4630 let show_new_completions_on_confirm = completion
4631 .confirm
4632 .as_ref()
4633 .map_or(false, |confirm| confirm(intent, cx));
4634 if show_new_completions_on_confirm {
4635 self.show_completions(&ShowCompletions { trigger: None }, cx);
4636 }
4637
4638 let provider = self.completion_provider.as_ref()?;
4639 let apply_edits = provider.apply_additional_edits_for_completion(
4640 buffer_handle,
4641 completion.clone(),
4642 true,
4643 cx,
4644 );
4645
4646 let editor_settings = EditorSettings::get_global(cx);
4647 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4648 // After the code completion is finished, users often want to know what signatures are needed.
4649 // so we should automatically call signature_help
4650 self.show_signature_help(&ShowSignatureHelp, cx);
4651 }
4652
4653 Some(cx.foreground_executor().spawn(async move {
4654 apply_edits.await?;
4655 Ok(())
4656 }))
4657 }
4658
4659 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4660 let mut context_menu = self.context_menu.write();
4661 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4662 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4663 // Toggle if we're selecting the same one
4664 *context_menu = None;
4665 cx.notify();
4666 return;
4667 } else {
4668 // Otherwise, clear it and start a new one
4669 *context_menu = None;
4670 cx.notify();
4671 }
4672 }
4673 drop(context_menu);
4674 let snapshot = self.snapshot(cx);
4675 let deployed_from_indicator = action.deployed_from_indicator;
4676 let mut task = self.code_actions_task.take();
4677 let action = action.clone();
4678 cx.spawn(|editor, mut cx| async move {
4679 while let Some(prev_task) = task {
4680 prev_task.await.log_err();
4681 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4682 }
4683
4684 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4685 if editor.focus_handle.is_focused(cx) {
4686 let multibuffer_point = action
4687 .deployed_from_indicator
4688 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4689 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4690 let (buffer, buffer_row) = snapshot
4691 .buffer_snapshot
4692 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4693 .and_then(|(buffer_snapshot, range)| {
4694 editor
4695 .buffer
4696 .read(cx)
4697 .buffer(buffer_snapshot.remote_id())
4698 .map(|buffer| (buffer, range.start.row))
4699 })?;
4700 let (_, code_actions) = editor
4701 .available_code_actions
4702 .clone()
4703 .and_then(|(location, code_actions)| {
4704 let snapshot = location.buffer.read(cx).snapshot();
4705 let point_range = location.range.to_point(&snapshot);
4706 let point_range = point_range.start.row..=point_range.end.row;
4707 if point_range.contains(&buffer_row) {
4708 Some((location, code_actions))
4709 } else {
4710 None
4711 }
4712 })
4713 .unzip();
4714 let buffer_id = buffer.read(cx).remote_id();
4715 let tasks = editor
4716 .tasks
4717 .get(&(buffer_id, buffer_row))
4718 .map(|t| Arc::new(t.to_owned()));
4719 if tasks.is_none() && code_actions.is_none() {
4720 return None;
4721 }
4722
4723 editor.completion_tasks.clear();
4724 editor.discard_inline_completion(false, cx);
4725 let task_context =
4726 tasks
4727 .as_ref()
4728 .zip(editor.project.clone())
4729 .map(|(tasks, project)| {
4730 let position = Point::new(buffer_row, tasks.column);
4731 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4732 let location = Location {
4733 buffer: buffer.clone(),
4734 range: range_start..range_start,
4735 };
4736 // Fill in the environmental variables from the tree-sitter captures
4737 let mut captured_task_variables = TaskVariables::default();
4738 for (capture_name, value) in tasks.extra_variables.clone() {
4739 captured_task_variables.insert(
4740 task::VariableName::Custom(capture_name.into()),
4741 value.clone(),
4742 );
4743 }
4744 project.update(cx, |project, cx| {
4745 project.task_store().update(cx, |task_store, cx| {
4746 task_store.task_context_for_location(
4747 captured_task_variables,
4748 location,
4749 cx,
4750 )
4751 })
4752 })
4753 });
4754
4755 Some(cx.spawn(|editor, mut cx| async move {
4756 let task_context = match task_context {
4757 Some(task_context) => task_context.await,
4758 None => None,
4759 };
4760 let resolved_tasks =
4761 tasks.zip(task_context).map(|(tasks, task_context)| {
4762 Arc::new(ResolvedTasks {
4763 templates: tasks
4764 .templates
4765 .iter()
4766 .filter_map(|(kind, template)| {
4767 template
4768 .resolve_task(&kind.to_id_base(), &task_context)
4769 .map(|task| (kind.clone(), task))
4770 })
4771 .collect(),
4772 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4773 multibuffer_point.row,
4774 tasks.column,
4775 )),
4776 })
4777 });
4778 let spawn_straight_away = resolved_tasks
4779 .as_ref()
4780 .map_or(false, |tasks| tasks.templates.len() == 1)
4781 && code_actions
4782 .as_ref()
4783 .map_or(true, |actions| actions.is_empty());
4784 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4785 *editor.context_menu.write() =
4786 Some(ContextMenu::CodeActions(CodeActionsMenu {
4787 buffer,
4788 actions: CodeActionContents {
4789 tasks: resolved_tasks,
4790 actions: code_actions,
4791 },
4792 selected_item: Default::default(),
4793 scroll_handle: UniformListScrollHandle::default(),
4794 deployed_from_indicator,
4795 }));
4796 if spawn_straight_away {
4797 if let Some(task) = editor.confirm_code_action(
4798 &ConfirmCodeAction { item_ix: Some(0) },
4799 cx,
4800 ) {
4801 cx.notify();
4802 return task;
4803 }
4804 }
4805 cx.notify();
4806 Task::ready(Ok(()))
4807 }) {
4808 task.await
4809 } else {
4810 Ok(())
4811 }
4812 }))
4813 } else {
4814 Some(Task::ready(Ok(())))
4815 }
4816 })?;
4817 if let Some(task) = spawned_test_task {
4818 task.await?;
4819 }
4820
4821 Ok::<_, anyhow::Error>(())
4822 })
4823 .detach_and_log_err(cx);
4824 }
4825
4826 pub fn confirm_code_action(
4827 &mut self,
4828 action: &ConfirmCodeAction,
4829 cx: &mut ViewContext<Self>,
4830 ) -> Option<Task<Result<()>>> {
4831 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4832 menu
4833 } else {
4834 return None;
4835 };
4836 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4837 let action = actions_menu.actions.get(action_ix)?;
4838 let title = action.label();
4839 let buffer = actions_menu.buffer;
4840 let workspace = self.workspace()?;
4841
4842 match action {
4843 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4844 workspace.update(cx, |workspace, cx| {
4845 workspace::tasks::schedule_resolved_task(
4846 workspace,
4847 task_source_kind,
4848 resolved_task,
4849 false,
4850 cx,
4851 );
4852
4853 Some(Task::ready(Ok(())))
4854 })
4855 }
4856 CodeActionsItem::CodeAction {
4857 excerpt_id,
4858 action,
4859 provider,
4860 } => {
4861 let apply_code_action =
4862 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4863 let workspace = workspace.downgrade();
4864 Some(cx.spawn(|editor, cx| async move {
4865 let project_transaction = apply_code_action.await?;
4866 Self::open_project_transaction(
4867 &editor,
4868 workspace,
4869 project_transaction,
4870 title,
4871 cx,
4872 )
4873 .await
4874 }))
4875 }
4876 }
4877 }
4878
4879 pub async fn open_project_transaction(
4880 this: &WeakView<Editor>,
4881 workspace: WeakView<Workspace>,
4882 transaction: ProjectTransaction,
4883 title: String,
4884 mut cx: AsyncWindowContext,
4885 ) -> Result<()> {
4886 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4887 cx.update(|cx| {
4888 entries.sort_unstable_by_key(|(buffer, _)| {
4889 buffer.read(cx).file().map(|f| f.path().clone())
4890 });
4891 })?;
4892
4893 // If the project transaction's edits are all contained within this editor, then
4894 // avoid opening a new editor to display them.
4895
4896 if let Some((buffer, transaction)) = entries.first() {
4897 if entries.len() == 1 {
4898 let excerpt = this.update(&mut cx, |editor, cx| {
4899 editor
4900 .buffer()
4901 .read(cx)
4902 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4903 })?;
4904 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4905 if excerpted_buffer == *buffer {
4906 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4907 let excerpt_range = excerpt_range.to_offset(buffer);
4908 buffer
4909 .edited_ranges_for_transaction::<usize>(transaction)
4910 .all(|range| {
4911 excerpt_range.start <= range.start
4912 && excerpt_range.end >= range.end
4913 })
4914 })?;
4915
4916 if all_edits_within_excerpt {
4917 return Ok(());
4918 }
4919 }
4920 }
4921 }
4922 } else {
4923 return Ok(());
4924 }
4925
4926 let mut ranges_to_highlight = Vec::new();
4927 let excerpt_buffer = cx.new_model(|cx| {
4928 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4929 for (buffer_handle, transaction) in &entries {
4930 let buffer = buffer_handle.read(cx);
4931 ranges_to_highlight.extend(
4932 multibuffer.push_excerpts_with_context_lines(
4933 buffer_handle.clone(),
4934 buffer
4935 .edited_ranges_for_transaction::<usize>(transaction)
4936 .collect(),
4937 DEFAULT_MULTIBUFFER_CONTEXT,
4938 cx,
4939 ),
4940 );
4941 }
4942 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4943 multibuffer
4944 })?;
4945
4946 workspace.update(&mut cx, |workspace, cx| {
4947 let project = workspace.project().clone();
4948 let editor =
4949 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4950 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4951 editor.update(cx, |editor, cx| {
4952 editor.highlight_background::<Self>(
4953 &ranges_to_highlight,
4954 |theme| theme.editor_highlighted_line_background,
4955 cx,
4956 );
4957 });
4958 })?;
4959
4960 Ok(())
4961 }
4962
4963 pub fn clear_code_action_providers(&mut self) {
4964 self.code_action_providers.clear();
4965 self.available_code_actions.take();
4966 }
4967
4968 pub fn push_code_action_provider(
4969 &mut self,
4970 provider: Arc<dyn CodeActionProvider>,
4971 cx: &mut ViewContext<Self>,
4972 ) {
4973 self.code_action_providers.push(provider);
4974 self.refresh_code_actions(cx);
4975 }
4976
4977 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4978 let buffer = self.buffer.read(cx);
4979 let newest_selection = self.selections.newest_anchor().clone();
4980 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4981 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4982 if start_buffer != end_buffer {
4983 return None;
4984 }
4985
4986 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4987 cx.background_executor()
4988 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4989 .await;
4990
4991 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4992 let providers = this.code_action_providers.clone();
4993 let tasks = this
4994 .code_action_providers
4995 .iter()
4996 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4997 .collect::<Vec<_>>();
4998 (providers, tasks)
4999 })?;
5000
5001 let mut actions = Vec::new();
5002 for (provider, provider_actions) in
5003 providers.into_iter().zip(future::join_all(tasks).await)
5004 {
5005 if let Some(provider_actions) = provider_actions.log_err() {
5006 actions.extend(provider_actions.into_iter().map(|action| {
5007 AvailableCodeAction {
5008 excerpt_id: newest_selection.start.excerpt_id,
5009 action,
5010 provider: provider.clone(),
5011 }
5012 }));
5013 }
5014 }
5015
5016 this.update(&mut cx, |this, cx| {
5017 this.available_code_actions = if actions.is_empty() {
5018 None
5019 } else {
5020 Some((
5021 Location {
5022 buffer: start_buffer,
5023 range: start..end,
5024 },
5025 actions.into(),
5026 ))
5027 };
5028 cx.notify();
5029 })
5030 }));
5031 None
5032 }
5033
5034 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5035 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5036 self.show_git_blame_inline = false;
5037
5038 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5039 cx.background_executor().timer(delay).await;
5040
5041 this.update(&mut cx, |this, cx| {
5042 this.show_git_blame_inline = true;
5043 cx.notify();
5044 })
5045 .log_err();
5046 }));
5047 }
5048 }
5049
5050 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5051 if self.pending_rename.is_some() {
5052 return None;
5053 }
5054
5055 let provider = self.semantics_provider.clone()?;
5056 let buffer = self.buffer.read(cx);
5057 let newest_selection = self.selections.newest_anchor().clone();
5058 let cursor_position = newest_selection.head();
5059 let (cursor_buffer, cursor_buffer_position) =
5060 buffer.text_anchor_for_position(cursor_position, cx)?;
5061 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5062 if cursor_buffer != tail_buffer {
5063 return None;
5064 }
5065
5066 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5067 cx.background_executor()
5068 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5069 .await;
5070
5071 let highlights = if let Some(highlights) = cx
5072 .update(|cx| {
5073 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5074 })
5075 .ok()
5076 .flatten()
5077 {
5078 highlights.await.log_err()
5079 } else {
5080 None
5081 };
5082
5083 if let Some(highlights) = highlights {
5084 this.update(&mut cx, |this, cx| {
5085 if this.pending_rename.is_some() {
5086 return;
5087 }
5088
5089 let buffer_id = cursor_position.buffer_id;
5090 let buffer = this.buffer.read(cx);
5091 if !buffer
5092 .text_anchor_for_position(cursor_position, cx)
5093 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5094 {
5095 return;
5096 }
5097
5098 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5099 let mut write_ranges = Vec::new();
5100 let mut read_ranges = Vec::new();
5101 for highlight in highlights {
5102 for (excerpt_id, excerpt_range) in
5103 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5104 {
5105 let start = highlight
5106 .range
5107 .start
5108 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5109 let end = highlight
5110 .range
5111 .end
5112 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5113 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5114 continue;
5115 }
5116
5117 let range = Anchor {
5118 buffer_id,
5119 excerpt_id,
5120 text_anchor: start,
5121 }..Anchor {
5122 buffer_id,
5123 excerpt_id,
5124 text_anchor: end,
5125 };
5126 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5127 write_ranges.push(range);
5128 } else {
5129 read_ranges.push(range);
5130 }
5131 }
5132 }
5133
5134 this.highlight_background::<DocumentHighlightRead>(
5135 &read_ranges,
5136 |theme| theme.editor_document_highlight_read_background,
5137 cx,
5138 );
5139 this.highlight_background::<DocumentHighlightWrite>(
5140 &write_ranges,
5141 |theme| theme.editor_document_highlight_write_background,
5142 cx,
5143 );
5144 cx.notify();
5145 })
5146 .log_err();
5147 }
5148 }));
5149 None
5150 }
5151
5152 pub fn refresh_inline_completion(
5153 &mut self,
5154 debounce: bool,
5155 user_requested: bool,
5156 cx: &mut ViewContext<Self>,
5157 ) -> Option<()> {
5158 let provider = self.inline_completion_provider()?;
5159 let cursor = self.selections.newest_anchor().head();
5160 let (buffer, cursor_buffer_position) =
5161 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5162
5163 if !user_requested
5164 && (!self.enable_inline_completions
5165 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5166 {
5167 self.discard_inline_completion(false, cx);
5168 return None;
5169 }
5170
5171 self.update_visible_inline_completion(cx);
5172 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5173 Some(())
5174 }
5175
5176 fn cycle_inline_completion(
5177 &mut self,
5178 direction: Direction,
5179 cx: &mut ViewContext<Self>,
5180 ) -> Option<()> {
5181 let provider = self.inline_completion_provider()?;
5182 let cursor = self.selections.newest_anchor().head();
5183 let (buffer, cursor_buffer_position) =
5184 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5185 if !self.enable_inline_completions
5186 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5187 {
5188 return None;
5189 }
5190
5191 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5192 self.update_visible_inline_completion(cx);
5193
5194 Some(())
5195 }
5196
5197 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5198 if !self.has_active_inline_completion(cx) {
5199 self.refresh_inline_completion(false, true, cx);
5200 return;
5201 }
5202
5203 self.update_visible_inline_completion(cx);
5204 }
5205
5206 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5207 self.show_cursor_names(cx);
5208 }
5209
5210 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5211 self.show_cursor_names = true;
5212 cx.notify();
5213 cx.spawn(|this, mut cx| async move {
5214 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5215 this.update(&mut cx, |this, cx| {
5216 this.show_cursor_names = false;
5217 cx.notify()
5218 })
5219 .ok()
5220 })
5221 .detach();
5222 }
5223
5224 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5225 if self.has_active_inline_completion(cx) {
5226 self.cycle_inline_completion(Direction::Next, cx);
5227 } else {
5228 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5229 if is_copilot_disabled {
5230 cx.propagate();
5231 }
5232 }
5233 }
5234
5235 pub fn previous_inline_completion(
5236 &mut self,
5237 _: &PreviousInlineCompletion,
5238 cx: &mut ViewContext<Self>,
5239 ) {
5240 if self.has_active_inline_completion(cx) {
5241 self.cycle_inline_completion(Direction::Prev, cx);
5242 } else {
5243 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5244 if is_copilot_disabled {
5245 cx.propagate();
5246 }
5247 }
5248 }
5249
5250 pub fn accept_inline_completion(
5251 &mut self,
5252 _: &AcceptInlineCompletion,
5253 cx: &mut ViewContext<Self>,
5254 ) {
5255 let Some(completion) = self.take_active_inline_completion(cx) else {
5256 return;
5257 };
5258 if let Some(provider) = self.inline_completion_provider() {
5259 provider.accept(cx);
5260 }
5261
5262 cx.emit(EditorEvent::InputHandled {
5263 utf16_range_to_replace: None,
5264 text: completion.text.to_string().into(),
5265 });
5266
5267 if let Some(range) = completion.delete_range {
5268 self.change_selections(None, cx, |s| s.select_ranges([range]))
5269 }
5270 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5271 self.refresh_inline_completion(true, true, cx);
5272 cx.notify();
5273 }
5274
5275 pub fn accept_partial_inline_completion(
5276 &mut self,
5277 _: &AcceptPartialInlineCompletion,
5278 cx: &mut ViewContext<Self>,
5279 ) {
5280 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5281 if let Some(completion) = self.take_active_inline_completion(cx) {
5282 let mut partial_completion = completion
5283 .text
5284 .chars()
5285 .by_ref()
5286 .take_while(|c| c.is_alphabetic())
5287 .collect::<String>();
5288 if partial_completion.is_empty() {
5289 partial_completion = completion
5290 .text
5291 .chars()
5292 .by_ref()
5293 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5294 .collect::<String>();
5295 }
5296
5297 cx.emit(EditorEvent::InputHandled {
5298 utf16_range_to_replace: None,
5299 text: partial_completion.clone().into(),
5300 });
5301
5302 if let Some(range) = completion.delete_range {
5303 self.change_selections(None, cx, |s| s.select_ranges([range]))
5304 }
5305 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5306
5307 self.refresh_inline_completion(true, true, cx);
5308 cx.notify();
5309 }
5310 }
5311 }
5312
5313 fn discard_inline_completion(
5314 &mut self,
5315 should_report_inline_completion_event: bool,
5316 cx: &mut ViewContext<Self>,
5317 ) -> bool {
5318 if let Some(provider) = self.inline_completion_provider() {
5319 provider.discard(should_report_inline_completion_event, cx);
5320 }
5321
5322 self.take_active_inline_completion(cx).is_some()
5323 }
5324
5325 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5326 if let Some(completion) = self.active_inline_completion.as_ref() {
5327 let buffer = self.buffer.read(cx).read(cx);
5328 completion.position.is_valid(&buffer)
5329 } else {
5330 false
5331 }
5332 }
5333
5334 fn take_active_inline_completion(
5335 &mut self,
5336 cx: &mut ViewContext<Self>,
5337 ) -> Option<CompletionState> {
5338 let completion = self.active_inline_completion.take()?;
5339 let render_inlay_ids = completion.render_inlay_ids.clone();
5340 self.display_map.update(cx, |map, cx| {
5341 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5342 });
5343 let buffer = self.buffer.read(cx).read(cx);
5344
5345 if completion.position.is_valid(&buffer) {
5346 Some(completion)
5347 } else {
5348 None
5349 }
5350 }
5351
5352 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5353 let selection = self.selections.newest_anchor();
5354 let cursor = selection.head();
5355
5356 let excerpt_id = cursor.excerpt_id;
5357
5358 if self.context_menu.read().is_none()
5359 && self.completion_tasks.is_empty()
5360 && selection.start == selection.end
5361 {
5362 if let Some(provider) = self.inline_completion_provider() {
5363 if let Some((buffer, cursor_buffer_position)) =
5364 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5365 {
5366 if let Some(proposal) =
5367 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5368 {
5369 let mut to_remove = Vec::new();
5370 if let Some(completion) = self.active_inline_completion.take() {
5371 to_remove.extend(completion.render_inlay_ids.iter());
5372 }
5373
5374 let to_add = proposal
5375 .inlays
5376 .iter()
5377 .filter_map(|inlay| {
5378 let snapshot = self.buffer.read(cx).snapshot(cx);
5379 let id = post_inc(&mut self.next_inlay_id);
5380 match inlay {
5381 InlayProposal::Hint(position, hint) => {
5382 let position =
5383 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5384 Some(Inlay::hint(id, position, hint))
5385 }
5386 InlayProposal::Suggestion(position, text) => {
5387 let position =
5388 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5389 Some(Inlay::suggestion(id, position, text.clone()))
5390 }
5391 }
5392 })
5393 .collect_vec();
5394
5395 self.active_inline_completion = Some(CompletionState {
5396 position: cursor,
5397 text: proposal.text,
5398 delete_range: proposal.delete_range.and_then(|range| {
5399 let snapshot = self.buffer.read(cx).snapshot(cx);
5400 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5401 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5402 Some(start?..end?)
5403 }),
5404 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5405 });
5406
5407 self.display_map
5408 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5409
5410 cx.notify();
5411 return;
5412 }
5413 }
5414 }
5415 }
5416
5417 self.discard_inline_completion(false, cx);
5418 }
5419
5420 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5421 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5422 }
5423
5424 fn render_code_actions_indicator(
5425 &self,
5426 _style: &EditorStyle,
5427 row: DisplayRow,
5428 is_active: bool,
5429 cx: &mut ViewContext<Self>,
5430 ) -> Option<IconButton> {
5431 if self.available_code_actions.is_some() {
5432 Some(
5433 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5434 .shape(ui::IconButtonShape::Square)
5435 .icon_size(IconSize::XSmall)
5436 .icon_color(Color::Muted)
5437 .selected(is_active)
5438 .tooltip({
5439 let focus_handle = self.focus_handle.clone();
5440 move |cx| {
5441 Tooltip::for_action_in(
5442 "Toggle Code Actions",
5443 &ToggleCodeActions {
5444 deployed_from_indicator: None,
5445 },
5446 &focus_handle,
5447 cx,
5448 )
5449 }
5450 })
5451 .on_click(cx.listener(move |editor, _e, cx| {
5452 editor.focus(cx);
5453 editor.toggle_code_actions(
5454 &ToggleCodeActions {
5455 deployed_from_indicator: Some(row),
5456 },
5457 cx,
5458 );
5459 })),
5460 )
5461 } else {
5462 None
5463 }
5464 }
5465
5466 fn clear_tasks(&mut self) {
5467 self.tasks.clear()
5468 }
5469
5470 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5471 if self.tasks.insert(key, value).is_some() {
5472 // This case should hopefully be rare, but just in case...
5473 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5474 }
5475 }
5476
5477 fn render_run_indicator(
5478 &self,
5479 _style: &EditorStyle,
5480 is_active: bool,
5481 row: DisplayRow,
5482 cx: &mut ViewContext<Self>,
5483 ) -> IconButton {
5484 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5485 .shape(ui::IconButtonShape::Square)
5486 .icon_size(IconSize::XSmall)
5487 .icon_color(Color::Muted)
5488 .selected(is_active)
5489 .on_click(cx.listener(move |editor, _e, cx| {
5490 editor.focus(cx);
5491 editor.toggle_code_actions(
5492 &ToggleCodeActions {
5493 deployed_from_indicator: Some(row),
5494 },
5495 cx,
5496 );
5497 }))
5498 }
5499
5500 pub fn context_menu_visible(&self) -> bool {
5501 self.context_menu
5502 .read()
5503 .as_ref()
5504 .map_or(false, |menu| menu.visible())
5505 }
5506
5507 fn render_context_menu(
5508 &self,
5509 cursor_position: DisplayPoint,
5510 style: &EditorStyle,
5511 max_height: Pixels,
5512 cx: &mut ViewContext<Editor>,
5513 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5514 self.context_menu.read().as_ref().map(|menu| {
5515 menu.render(
5516 cursor_position,
5517 style,
5518 max_height,
5519 self.workspace.as_ref().map(|(w, _)| w.clone()),
5520 cx,
5521 )
5522 })
5523 }
5524
5525 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5526 cx.notify();
5527 self.completion_tasks.clear();
5528 let context_menu = self.context_menu.write().take();
5529 if context_menu.is_some() {
5530 self.update_visible_inline_completion(cx);
5531 }
5532 context_menu
5533 }
5534
5535 pub fn insert_snippet(
5536 &mut self,
5537 insertion_ranges: &[Range<usize>],
5538 snippet: Snippet,
5539 cx: &mut ViewContext<Self>,
5540 ) -> Result<()> {
5541 struct Tabstop<T> {
5542 is_end_tabstop: bool,
5543 ranges: Vec<Range<T>>,
5544 }
5545
5546 let tabstops = self.buffer.update(cx, |buffer, cx| {
5547 let snippet_text: Arc<str> = snippet.text.clone().into();
5548 buffer.edit(
5549 insertion_ranges
5550 .iter()
5551 .cloned()
5552 .map(|range| (range, snippet_text.clone())),
5553 Some(AutoindentMode::EachLine),
5554 cx,
5555 );
5556
5557 let snapshot = &*buffer.read(cx);
5558 let snippet = &snippet;
5559 snippet
5560 .tabstops
5561 .iter()
5562 .map(|tabstop| {
5563 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5564 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5565 });
5566 let mut tabstop_ranges = tabstop
5567 .iter()
5568 .flat_map(|tabstop_range| {
5569 let mut delta = 0_isize;
5570 insertion_ranges.iter().map(move |insertion_range| {
5571 let insertion_start = insertion_range.start as isize + delta;
5572 delta +=
5573 snippet.text.len() as isize - insertion_range.len() as isize;
5574
5575 let start = ((insertion_start + tabstop_range.start) as usize)
5576 .min(snapshot.len());
5577 let end = ((insertion_start + tabstop_range.end) as usize)
5578 .min(snapshot.len());
5579 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5580 })
5581 })
5582 .collect::<Vec<_>>();
5583 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5584
5585 Tabstop {
5586 is_end_tabstop,
5587 ranges: tabstop_ranges,
5588 }
5589 })
5590 .collect::<Vec<_>>()
5591 });
5592 if let Some(tabstop) = tabstops.first() {
5593 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5594 s.select_ranges(tabstop.ranges.iter().cloned());
5595 });
5596
5597 // If we're already at the last tabstop and it's at the end of the snippet,
5598 // we're done, we don't need to keep the state around.
5599 if !tabstop.is_end_tabstop {
5600 let ranges = tabstops
5601 .into_iter()
5602 .map(|tabstop| tabstop.ranges)
5603 .collect::<Vec<_>>();
5604 self.snippet_stack.push(SnippetState {
5605 active_index: 0,
5606 ranges,
5607 });
5608 }
5609
5610 // Check whether the just-entered snippet ends with an auto-closable bracket.
5611 if self.autoclose_regions.is_empty() {
5612 let snapshot = self.buffer.read(cx).snapshot(cx);
5613 for selection in &mut self.selections.all::<Point>(cx) {
5614 let selection_head = selection.head();
5615 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5616 continue;
5617 };
5618
5619 let mut bracket_pair = None;
5620 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5621 let prev_chars = snapshot
5622 .reversed_chars_at(selection_head)
5623 .collect::<String>();
5624 for (pair, enabled) in scope.brackets() {
5625 if enabled
5626 && pair.close
5627 && prev_chars.starts_with(pair.start.as_str())
5628 && next_chars.starts_with(pair.end.as_str())
5629 {
5630 bracket_pair = Some(pair.clone());
5631 break;
5632 }
5633 }
5634 if let Some(pair) = bracket_pair {
5635 let start = snapshot.anchor_after(selection_head);
5636 let end = snapshot.anchor_after(selection_head);
5637 self.autoclose_regions.push(AutocloseRegion {
5638 selection_id: selection.id,
5639 range: start..end,
5640 pair,
5641 });
5642 }
5643 }
5644 }
5645 }
5646 Ok(())
5647 }
5648
5649 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5650 self.move_to_snippet_tabstop(Bias::Right, cx)
5651 }
5652
5653 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5654 self.move_to_snippet_tabstop(Bias::Left, cx)
5655 }
5656
5657 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5658 if let Some(mut snippet) = self.snippet_stack.pop() {
5659 match bias {
5660 Bias::Left => {
5661 if snippet.active_index > 0 {
5662 snippet.active_index -= 1;
5663 } else {
5664 self.snippet_stack.push(snippet);
5665 return false;
5666 }
5667 }
5668 Bias::Right => {
5669 if snippet.active_index + 1 < snippet.ranges.len() {
5670 snippet.active_index += 1;
5671 } else {
5672 self.snippet_stack.push(snippet);
5673 return false;
5674 }
5675 }
5676 }
5677 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5678 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5679 s.select_anchor_ranges(current_ranges.iter().cloned())
5680 });
5681 // If snippet state is not at the last tabstop, push it back on the stack
5682 if snippet.active_index + 1 < snippet.ranges.len() {
5683 self.snippet_stack.push(snippet);
5684 }
5685 return true;
5686 }
5687 }
5688
5689 false
5690 }
5691
5692 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5693 self.transact(cx, |this, cx| {
5694 this.select_all(&SelectAll, cx);
5695 this.insert("", cx);
5696 });
5697 }
5698
5699 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5700 self.transact(cx, |this, cx| {
5701 this.select_autoclose_pair(cx);
5702 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5703 if !this.linked_edit_ranges.is_empty() {
5704 let selections = this.selections.all::<MultiBufferPoint>(cx);
5705 let snapshot = this.buffer.read(cx).snapshot(cx);
5706
5707 for selection in selections.iter() {
5708 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5709 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5710 if selection_start.buffer_id != selection_end.buffer_id {
5711 continue;
5712 }
5713 if let Some(ranges) =
5714 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5715 {
5716 for (buffer, entries) in ranges {
5717 linked_ranges.entry(buffer).or_default().extend(entries);
5718 }
5719 }
5720 }
5721 }
5722
5723 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5724 if !this.selections.line_mode {
5725 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5726 for selection in &mut selections {
5727 if selection.is_empty() {
5728 let old_head = selection.head();
5729 let mut new_head =
5730 movement::left(&display_map, old_head.to_display_point(&display_map))
5731 .to_point(&display_map);
5732 if let Some((buffer, line_buffer_range)) = display_map
5733 .buffer_snapshot
5734 .buffer_line_for_row(MultiBufferRow(old_head.row))
5735 {
5736 let indent_size =
5737 buffer.indent_size_for_line(line_buffer_range.start.row);
5738 let indent_len = match indent_size.kind {
5739 IndentKind::Space => {
5740 buffer.settings_at(line_buffer_range.start, cx).tab_size
5741 }
5742 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5743 };
5744 if old_head.column <= indent_size.len && old_head.column > 0 {
5745 let indent_len = indent_len.get();
5746 new_head = cmp::min(
5747 new_head,
5748 MultiBufferPoint::new(
5749 old_head.row,
5750 ((old_head.column - 1) / indent_len) * indent_len,
5751 ),
5752 );
5753 }
5754 }
5755
5756 selection.set_head(new_head, SelectionGoal::None);
5757 }
5758 }
5759 }
5760
5761 this.signature_help_state.set_backspace_pressed(true);
5762 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5763 this.insert("", cx);
5764 let empty_str: Arc<str> = Arc::from("");
5765 for (buffer, edits) in linked_ranges {
5766 let snapshot = buffer.read(cx).snapshot();
5767 use text::ToPoint as TP;
5768
5769 let edits = edits
5770 .into_iter()
5771 .map(|range| {
5772 let end_point = TP::to_point(&range.end, &snapshot);
5773 let mut start_point = TP::to_point(&range.start, &snapshot);
5774
5775 if end_point == start_point {
5776 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5777 .saturating_sub(1);
5778 start_point = TP::to_point(&offset, &snapshot);
5779 };
5780
5781 (start_point..end_point, empty_str.clone())
5782 })
5783 .sorted_by_key(|(range, _)| range.start)
5784 .collect::<Vec<_>>();
5785 buffer.update(cx, |this, cx| {
5786 this.edit(edits, None, cx);
5787 })
5788 }
5789 this.refresh_inline_completion(true, false, cx);
5790 linked_editing_ranges::refresh_linked_ranges(this, cx);
5791 });
5792 }
5793
5794 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5795 self.transact(cx, |this, cx| {
5796 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5797 let line_mode = s.line_mode;
5798 s.move_with(|map, selection| {
5799 if selection.is_empty() && !line_mode {
5800 let cursor = movement::right(map, selection.head());
5801 selection.end = cursor;
5802 selection.reversed = true;
5803 selection.goal = SelectionGoal::None;
5804 }
5805 })
5806 });
5807 this.insert("", cx);
5808 this.refresh_inline_completion(true, false, cx);
5809 });
5810 }
5811
5812 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5813 if self.move_to_prev_snippet_tabstop(cx) {
5814 return;
5815 }
5816
5817 self.outdent(&Outdent, cx);
5818 }
5819
5820 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5821 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5822 return;
5823 }
5824
5825 let mut selections = self.selections.all_adjusted(cx);
5826 let buffer = self.buffer.read(cx);
5827 let snapshot = buffer.snapshot(cx);
5828 let rows_iter = selections.iter().map(|s| s.head().row);
5829 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5830
5831 let mut edits = Vec::new();
5832 let mut prev_edited_row = 0;
5833 let mut row_delta = 0;
5834 for selection in &mut selections {
5835 if selection.start.row != prev_edited_row {
5836 row_delta = 0;
5837 }
5838 prev_edited_row = selection.end.row;
5839
5840 // If the selection is non-empty, then increase the indentation of the selected lines.
5841 if !selection.is_empty() {
5842 row_delta =
5843 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5844 continue;
5845 }
5846
5847 // If the selection is empty and the cursor is in the leading whitespace before the
5848 // suggested indentation, then auto-indent the line.
5849 let cursor = selection.head();
5850 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5851 if let Some(suggested_indent) =
5852 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5853 {
5854 if cursor.column < suggested_indent.len
5855 && cursor.column <= current_indent.len
5856 && current_indent.len <= suggested_indent.len
5857 {
5858 selection.start = Point::new(cursor.row, suggested_indent.len);
5859 selection.end = selection.start;
5860 if row_delta == 0 {
5861 edits.extend(Buffer::edit_for_indent_size_adjustment(
5862 cursor.row,
5863 current_indent,
5864 suggested_indent,
5865 ));
5866 row_delta = suggested_indent.len - current_indent.len;
5867 }
5868 continue;
5869 }
5870 }
5871
5872 // Otherwise, insert a hard or soft tab.
5873 let settings = buffer.settings_at(cursor, cx);
5874 let tab_size = if settings.hard_tabs {
5875 IndentSize::tab()
5876 } else {
5877 let tab_size = settings.tab_size.get();
5878 let char_column = snapshot
5879 .text_for_range(Point::new(cursor.row, 0)..cursor)
5880 .flat_map(str::chars)
5881 .count()
5882 + row_delta as usize;
5883 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5884 IndentSize::spaces(chars_to_next_tab_stop)
5885 };
5886 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5887 selection.end = selection.start;
5888 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5889 row_delta += tab_size.len;
5890 }
5891
5892 self.transact(cx, |this, cx| {
5893 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5894 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5895 this.refresh_inline_completion(true, false, cx);
5896 });
5897 }
5898
5899 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5900 if self.read_only(cx) {
5901 return;
5902 }
5903 let mut selections = self.selections.all::<Point>(cx);
5904 let mut prev_edited_row = 0;
5905 let mut row_delta = 0;
5906 let mut edits = Vec::new();
5907 let buffer = self.buffer.read(cx);
5908 let snapshot = buffer.snapshot(cx);
5909 for selection in &mut selections {
5910 if selection.start.row != prev_edited_row {
5911 row_delta = 0;
5912 }
5913 prev_edited_row = selection.end.row;
5914
5915 row_delta =
5916 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5917 }
5918
5919 self.transact(cx, |this, cx| {
5920 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5921 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5922 });
5923 }
5924
5925 fn indent_selection(
5926 buffer: &MultiBuffer,
5927 snapshot: &MultiBufferSnapshot,
5928 selection: &mut Selection<Point>,
5929 edits: &mut Vec<(Range<Point>, String)>,
5930 delta_for_start_row: u32,
5931 cx: &AppContext,
5932 ) -> u32 {
5933 let settings = buffer.settings_at(selection.start, cx);
5934 let tab_size = settings.tab_size.get();
5935 let indent_kind = if settings.hard_tabs {
5936 IndentKind::Tab
5937 } else {
5938 IndentKind::Space
5939 };
5940 let mut start_row = selection.start.row;
5941 let mut end_row = selection.end.row + 1;
5942
5943 // If a selection ends at the beginning of a line, don't indent
5944 // that last line.
5945 if selection.end.column == 0 && selection.end.row > selection.start.row {
5946 end_row -= 1;
5947 }
5948
5949 // Avoid re-indenting a row that has already been indented by a
5950 // previous selection, but still update this selection's column
5951 // to reflect that indentation.
5952 if delta_for_start_row > 0 {
5953 start_row += 1;
5954 selection.start.column += delta_for_start_row;
5955 if selection.end.row == selection.start.row {
5956 selection.end.column += delta_for_start_row;
5957 }
5958 }
5959
5960 let mut delta_for_end_row = 0;
5961 let has_multiple_rows = start_row + 1 != end_row;
5962 for row in start_row..end_row {
5963 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5964 let indent_delta = match (current_indent.kind, indent_kind) {
5965 (IndentKind::Space, IndentKind::Space) => {
5966 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5967 IndentSize::spaces(columns_to_next_tab_stop)
5968 }
5969 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5970 (_, IndentKind::Tab) => IndentSize::tab(),
5971 };
5972
5973 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5974 0
5975 } else {
5976 selection.start.column
5977 };
5978 let row_start = Point::new(row, start);
5979 edits.push((
5980 row_start..row_start,
5981 indent_delta.chars().collect::<String>(),
5982 ));
5983
5984 // Update this selection's endpoints to reflect the indentation.
5985 if row == selection.start.row {
5986 selection.start.column += indent_delta.len;
5987 }
5988 if row == selection.end.row {
5989 selection.end.column += indent_delta.len;
5990 delta_for_end_row = indent_delta.len;
5991 }
5992 }
5993
5994 if selection.start.row == selection.end.row {
5995 delta_for_start_row + delta_for_end_row
5996 } else {
5997 delta_for_end_row
5998 }
5999 }
6000
6001 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6002 if self.read_only(cx) {
6003 return;
6004 }
6005 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6006 let selections = self.selections.all::<Point>(cx);
6007 let mut deletion_ranges = Vec::new();
6008 let mut last_outdent = None;
6009 {
6010 let buffer = self.buffer.read(cx);
6011 let snapshot = buffer.snapshot(cx);
6012 for selection in &selections {
6013 let settings = buffer.settings_at(selection.start, cx);
6014 let tab_size = settings.tab_size.get();
6015 let mut rows = selection.spanned_rows(false, &display_map);
6016
6017 // Avoid re-outdenting a row that has already been outdented by a
6018 // previous selection.
6019 if let Some(last_row) = last_outdent {
6020 if last_row == rows.start {
6021 rows.start = rows.start.next_row();
6022 }
6023 }
6024 let has_multiple_rows = rows.len() > 1;
6025 for row in rows.iter_rows() {
6026 let indent_size = snapshot.indent_size_for_line(row);
6027 if indent_size.len > 0 {
6028 let deletion_len = match indent_size.kind {
6029 IndentKind::Space => {
6030 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6031 if columns_to_prev_tab_stop == 0 {
6032 tab_size
6033 } else {
6034 columns_to_prev_tab_stop
6035 }
6036 }
6037 IndentKind::Tab => 1,
6038 };
6039 let start = if has_multiple_rows
6040 || deletion_len > selection.start.column
6041 || indent_size.len < selection.start.column
6042 {
6043 0
6044 } else {
6045 selection.start.column - deletion_len
6046 };
6047 deletion_ranges.push(
6048 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6049 );
6050 last_outdent = Some(row);
6051 }
6052 }
6053 }
6054 }
6055
6056 self.transact(cx, |this, cx| {
6057 this.buffer.update(cx, |buffer, cx| {
6058 let empty_str: Arc<str> = Arc::default();
6059 buffer.edit(
6060 deletion_ranges
6061 .into_iter()
6062 .map(|range| (range, empty_str.clone())),
6063 None,
6064 cx,
6065 );
6066 });
6067 let selections = this.selections.all::<usize>(cx);
6068 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6069 });
6070 }
6071
6072 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6073 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6074 let selections = self.selections.all::<Point>(cx);
6075
6076 let mut new_cursors = Vec::new();
6077 let mut edit_ranges = Vec::new();
6078 let mut selections = selections.iter().peekable();
6079 while let Some(selection) = selections.next() {
6080 let mut rows = selection.spanned_rows(false, &display_map);
6081 let goal_display_column = selection.head().to_display_point(&display_map).column();
6082
6083 // Accumulate contiguous regions of rows that we want to delete.
6084 while let Some(next_selection) = selections.peek() {
6085 let next_rows = next_selection.spanned_rows(false, &display_map);
6086 if next_rows.start <= rows.end {
6087 rows.end = next_rows.end;
6088 selections.next().unwrap();
6089 } else {
6090 break;
6091 }
6092 }
6093
6094 let buffer = &display_map.buffer_snapshot;
6095 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6096 let edit_end;
6097 let cursor_buffer_row;
6098 if buffer.max_point().row >= rows.end.0 {
6099 // If there's a line after the range, delete the \n from the end of the row range
6100 // and position the cursor on the next line.
6101 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6102 cursor_buffer_row = rows.end;
6103 } else {
6104 // If there isn't a line after the range, delete the \n from the line before the
6105 // start of the row range and position the cursor there.
6106 edit_start = edit_start.saturating_sub(1);
6107 edit_end = buffer.len();
6108 cursor_buffer_row = rows.start.previous_row();
6109 }
6110
6111 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6112 *cursor.column_mut() =
6113 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6114
6115 new_cursors.push((
6116 selection.id,
6117 buffer.anchor_after(cursor.to_point(&display_map)),
6118 ));
6119 edit_ranges.push(edit_start..edit_end);
6120 }
6121
6122 self.transact(cx, |this, cx| {
6123 let buffer = this.buffer.update(cx, |buffer, cx| {
6124 let empty_str: Arc<str> = Arc::default();
6125 buffer.edit(
6126 edit_ranges
6127 .into_iter()
6128 .map(|range| (range, empty_str.clone())),
6129 None,
6130 cx,
6131 );
6132 buffer.snapshot(cx)
6133 });
6134 let new_selections = new_cursors
6135 .into_iter()
6136 .map(|(id, cursor)| {
6137 let cursor = cursor.to_point(&buffer);
6138 Selection {
6139 id,
6140 start: cursor,
6141 end: cursor,
6142 reversed: false,
6143 goal: SelectionGoal::None,
6144 }
6145 })
6146 .collect();
6147
6148 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6149 s.select(new_selections);
6150 });
6151 });
6152 }
6153
6154 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6155 if self.read_only(cx) {
6156 return;
6157 }
6158 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6159 for selection in self.selections.all::<Point>(cx) {
6160 let start = MultiBufferRow(selection.start.row);
6161 let end = if selection.start.row == selection.end.row {
6162 MultiBufferRow(selection.start.row + 1)
6163 } else {
6164 MultiBufferRow(selection.end.row)
6165 };
6166
6167 if let Some(last_row_range) = row_ranges.last_mut() {
6168 if start <= last_row_range.end {
6169 last_row_range.end = end;
6170 continue;
6171 }
6172 }
6173 row_ranges.push(start..end);
6174 }
6175
6176 let snapshot = self.buffer.read(cx).snapshot(cx);
6177 let mut cursor_positions = Vec::new();
6178 for row_range in &row_ranges {
6179 let anchor = snapshot.anchor_before(Point::new(
6180 row_range.end.previous_row().0,
6181 snapshot.line_len(row_range.end.previous_row()),
6182 ));
6183 cursor_positions.push(anchor..anchor);
6184 }
6185
6186 self.transact(cx, |this, cx| {
6187 for row_range in row_ranges.into_iter().rev() {
6188 for row in row_range.iter_rows().rev() {
6189 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6190 let next_line_row = row.next_row();
6191 let indent = snapshot.indent_size_for_line(next_line_row);
6192 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6193
6194 let replace = if snapshot.line_len(next_line_row) > indent.len {
6195 " "
6196 } else {
6197 ""
6198 };
6199
6200 this.buffer.update(cx, |buffer, cx| {
6201 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6202 });
6203 }
6204 }
6205
6206 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6207 s.select_anchor_ranges(cursor_positions)
6208 });
6209 });
6210 }
6211
6212 pub fn sort_lines_case_sensitive(
6213 &mut self,
6214 _: &SortLinesCaseSensitive,
6215 cx: &mut ViewContext<Self>,
6216 ) {
6217 self.manipulate_lines(cx, |lines| lines.sort())
6218 }
6219
6220 pub fn sort_lines_case_insensitive(
6221 &mut self,
6222 _: &SortLinesCaseInsensitive,
6223 cx: &mut ViewContext<Self>,
6224 ) {
6225 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6226 }
6227
6228 pub fn unique_lines_case_insensitive(
6229 &mut self,
6230 _: &UniqueLinesCaseInsensitive,
6231 cx: &mut ViewContext<Self>,
6232 ) {
6233 self.manipulate_lines(cx, |lines| {
6234 let mut seen = HashSet::default();
6235 lines.retain(|line| seen.insert(line.to_lowercase()));
6236 })
6237 }
6238
6239 pub fn unique_lines_case_sensitive(
6240 &mut self,
6241 _: &UniqueLinesCaseSensitive,
6242 cx: &mut ViewContext<Self>,
6243 ) {
6244 self.manipulate_lines(cx, |lines| {
6245 let mut seen = HashSet::default();
6246 lines.retain(|line| seen.insert(*line));
6247 })
6248 }
6249
6250 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6251 let mut revert_changes = HashMap::default();
6252 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6253 for hunk in hunks_for_rows(
6254 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6255 &multi_buffer_snapshot,
6256 ) {
6257 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6258 }
6259 if !revert_changes.is_empty() {
6260 self.transact(cx, |editor, cx| {
6261 editor.revert(revert_changes, cx);
6262 });
6263 }
6264 }
6265
6266 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6267 let Some(project) = self.project.clone() else {
6268 return;
6269 };
6270 self.reload(project, cx).detach_and_notify_err(cx);
6271 }
6272
6273 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6274 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6275 if !revert_changes.is_empty() {
6276 self.transact(cx, |editor, cx| {
6277 editor.revert(revert_changes, cx);
6278 });
6279 }
6280 }
6281
6282 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6283 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6284 let project_path = buffer.read(cx).project_path(cx)?;
6285 let project = self.project.as_ref()?.read(cx);
6286 let entry = project.entry_for_path(&project_path, cx)?;
6287 let parent = match &entry.canonical_path {
6288 Some(canonical_path) => canonical_path.to_path_buf(),
6289 None => project.absolute_path(&project_path, cx)?,
6290 }
6291 .parent()?
6292 .to_path_buf();
6293 Some(parent)
6294 }) {
6295 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6296 }
6297 }
6298
6299 fn gather_revert_changes(
6300 &mut self,
6301 selections: &[Selection<Anchor>],
6302 cx: &mut ViewContext<'_, Editor>,
6303 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6304 let mut revert_changes = HashMap::default();
6305 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6306 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6307 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6308 }
6309 revert_changes
6310 }
6311
6312 pub fn prepare_revert_change(
6313 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6314 multi_buffer: &Model<MultiBuffer>,
6315 hunk: &MultiBufferDiffHunk,
6316 cx: &AppContext,
6317 ) -> Option<()> {
6318 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6319 let buffer = buffer.read(cx);
6320 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6321 let buffer_snapshot = buffer.snapshot();
6322 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6323 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6324 probe
6325 .0
6326 .start
6327 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6328 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6329 }) {
6330 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6331 Some(())
6332 } else {
6333 None
6334 }
6335 }
6336
6337 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6338 self.manipulate_lines(cx, |lines| lines.reverse())
6339 }
6340
6341 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6342 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6343 }
6344
6345 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6346 where
6347 Fn: FnMut(&mut Vec<&str>),
6348 {
6349 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6350 let buffer = self.buffer.read(cx).snapshot(cx);
6351
6352 let mut edits = Vec::new();
6353
6354 let selections = self.selections.all::<Point>(cx);
6355 let mut selections = selections.iter().peekable();
6356 let mut contiguous_row_selections = Vec::new();
6357 let mut new_selections = Vec::new();
6358 let mut added_lines = 0;
6359 let mut removed_lines = 0;
6360
6361 while let Some(selection) = selections.next() {
6362 let (start_row, end_row) = consume_contiguous_rows(
6363 &mut contiguous_row_selections,
6364 selection,
6365 &display_map,
6366 &mut selections,
6367 );
6368
6369 let start_point = Point::new(start_row.0, 0);
6370 let end_point = Point::new(
6371 end_row.previous_row().0,
6372 buffer.line_len(end_row.previous_row()),
6373 );
6374 let text = buffer
6375 .text_for_range(start_point..end_point)
6376 .collect::<String>();
6377
6378 let mut lines = text.split('\n').collect_vec();
6379
6380 let lines_before = lines.len();
6381 callback(&mut lines);
6382 let lines_after = lines.len();
6383
6384 edits.push((start_point..end_point, lines.join("\n")));
6385
6386 // Selections must change based on added and removed line count
6387 let start_row =
6388 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6389 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6390 new_selections.push(Selection {
6391 id: selection.id,
6392 start: start_row,
6393 end: end_row,
6394 goal: SelectionGoal::None,
6395 reversed: selection.reversed,
6396 });
6397
6398 if lines_after > lines_before {
6399 added_lines += lines_after - lines_before;
6400 } else if lines_before > lines_after {
6401 removed_lines += lines_before - lines_after;
6402 }
6403 }
6404
6405 self.transact(cx, |this, cx| {
6406 let buffer = this.buffer.update(cx, |buffer, cx| {
6407 buffer.edit(edits, None, cx);
6408 buffer.snapshot(cx)
6409 });
6410
6411 // Recalculate offsets on newly edited buffer
6412 let new_selections = new_selections
6413 .iter()
6414 .map(|s| {
6415 let start_point = Point::new(s.start.0, 0);
6416 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6417 Selection {
6418 id: s.id,
6419 start: buffer.point_to_offset(start_point),
6420 end: buffer.point_to_offset(end_point),
6421 goal: s.goal,
6422 reversed: s.reversed,
6423 }
6424 })
6425 .collect();
6426
6427 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6428 s.select(new_selections);
6429 });
6430
6431 this.request_autoscroll(Autoscroll::fit(), cx);
6432 });
6433 }
6434
6435 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6436 self.manipulate_text(cx, |text| text.to_uppercase())
6437 }
6438
6439 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6440 self.manipulate_text(cx, |text| text.to_lowercase())
6441 }
6442
6443 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6444 self.manipulate_text(cx, |text| {
6445 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6446 // https://github.com/rutrum/convert-case/issues/16
6447 text.split('\n')
6448 .map(|line| line.to_case(Case::Title))
6449 .join("\n")
6450 })
6451 }
6452
6453 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6454 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6455 }
6456
6457 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6458 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6459 }
6460
6461 pub fn convert_to_upper_camel_case(
6462 &mut self,
6463 _: &ConvertToUpperCamelCase,
6464 cx: &mut ViewContext<Self>,
6465 ) {
6466 self.manipulate_text(cx, |text| {
6467 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6468 // https://github.com/rutrum/convert-case/issues/16
6469 text.split('\n')
6470 .map(|line| line.to_case(Case::UpperCamel))
6471 .join("\n")
6472 })
6473 }
6474
6475 pub fn convert_to_lower_camel_case(
6476 &mut self,
6477 _: &ConvertToLowerCamelCase,
6478 cx: &mut ViewContext<Self>,
6479 ) {
6480 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6481 }
6482
6483 pub fn convert_to_opposite_case(
6484 &mut self,
6485 _: &ConvertToOppositeCase,
6486 cx: &mut ViewContext<Self>,
6487 ) {
6488 self.manipulate_text(cx, |text| {
6489 text.chars()
6490 .fold(String::with_capacity(text.len()), |mut t, c| {
6491 if c.is_uppercase() {
6492 t.extend(c.to_lowercase());
6493 } else {
6494 t.extend(c.to_uppercase());
6495 }
6496 t
6497 })
6498 })
6499 }
6500
6501 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6502 where
6503 Fn: FnMut(&str) -> String,
6504 {
6505 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6506 let buffer = self.buffer.read(cx).snapshot(cx);
6507
6508 let mut new_selections = Vec::new();
6509 let mut edits = Vec::new();
6510 let mut selection_adjustment = 0i32;
6511
6512 for selection in self.selections.all::<usize>(cx) {
6513 let selection_is_empty = selection.is_empty();
6514
6515 let (start, end) = if selection_is_empty {
6516 let word_range = movement::surrounding_word(
6517 &display_map,
6518 selection.start.to_display_point(&display_map),
6519 );
6520 let start = word_range.start.to_offset(&display_map, Bias::Left);
6521 let end = word_range.end.to_offset(&display_map, Bias::Left);
6522 (start, end)
6523 } else {
6524 (selection.start, selection.end)
6525 };
6526
6527 let text = buffer.text_for_range(start..end).collect::<String>();
6528 let old_length = text.len() as i32;
6529 let text = callback(&text);
6530
6531 new_selections.push(Selection {
6532 start: (start as i32 - selection_adjustment) as usize,
6533 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6534 goal: SelectionGoal::None,
6535 ..selection
6536 });
6537
6538 selection_adjustment += old_length - text.len() as i32;
6539
6540 edits.push((start..end, text));
6541 }
6542
6543 self.transact(cx, |this, cx| {
6544 this.buffer.update(cx, |buffer, cx| {
6545 buffer.edit(edits, None, cx);
6546 });
6547
6548 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6549 s.select(new_selections);
6550 });
6551
6552 this.request_autoscroll(Autoscroll::fit(), cx);
6553 });
6554 }
6555
6556 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6557 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6558 let buffer = &display_map.buffer_snapshot;
6559 let selections = self.selections.all::<Point>(cx);
6560
6561 let mut edits = Vec::new();
6562 let mut selections_iter = selections.iter().peekable();
6563 while let Some(selection) = selections_iter.next() {
6564 // Avoid duplicating the same lines twice.
6565 let mut rows = selection.spanned_rows(false, &display_map);
6566
6567 while let Some(next_selection) = selections_iter.peek() {
6568 let next_rows = next_selection.spanned_rows(false, &display_map);
6569 if next_rows.start < rows.end {
6570 rows.end = next_rows.end;
6571 selections_iter.next().unwrap();
6572 } else {
6573 break;
6574 }
6575 }
6576
6577 // Copy the text from the selected row region and splice it either at the start
6578 // or end of the region.
6579 let start = Point::new(rows.start.0, 0);
6580 let end = Point::new(
6581 rows.end.previous_row().0,
6582 buffer.line_len(rows.end.previous_row()),
6583 );
6584 let text = buffer
6585 .text_for_range(start..end)
6586 .chain(Some("\n"))
6587 .collect::<String>();
6588 let insert_location = if upwards {
6589 Point::new(rows.end.0, 0)
6590 } else {
6591 start
6592 };
6593 edits.push((insert_location..insert_location, text));
6594 }
6595
6596 self.transact(cx, |this, cx| {
6597 this.buffer.update(cx, |buffer, cx| {
6598 buffer.edit(edits, None, cx);
6599 });
6600
6601 this.request_autoscroll(Autoscroll::fit(), cx);
6602 });
6603 }
6604
6605 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6606 self.duplicate_line(true, cx);
6607 }
6608
6609 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6610 self.duplicate_line(false, cx);
6611 }
6612
6613 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6614 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6615 let buffer = self.buffer.read(cx).snapshot(cx);
6616
6617 let mut edits = Vec::new();
6618 let mut unfold_ranges = Vec::new();
6619 let mut refold_ranges = Vec::new();
6620
6621 let selections = self.selections.all::<Point>(cx);
6622 let mut selections = selections.iter().peekable();
6623 let mut contiguous_row_selections = Vec::new();
6624 let mut new_selections = Vec::new();
6625
6626 while let Some(selection) = selections.next() {
6627 // Find all the selections that span a contiguous row range
6628 let (start_row, end_row) = consume_contiguous_rows(
6629 &mut contiguous_row_selections,
6630 selection,
6631 &display_map,
6632 &mut selections,
6633 );
6634
6635 // Move the text spanned by the row range to be before the line preceding the row range
6636 if start_row.0 > 0 {
6637 let range_to_move = Point::new(
6638 start_row.previous_row().0,
6639 buffer.line_len(start_row.previous_row()),
6640 )
6641 ..Point::new(
6642 end_row.previous_row().0,
6643 buffer.line_len(end_row.previous_row()),
6644 );
6645 let insertion_point = display_map
6646 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6647 .0;
6648
6649 // Don't move lines across excerpts
6650 if buffer
6651 .excerpt_boundaries_in_range((
6652 Bound::Excluded(insertion_point),
6653 Bound::Included(range_to_move.end),
6654 ))
6655 .next()
6656 .is_none()
6657 {
6658 let text = buffer
6659 .text_for_range(range_to_move.clone())
6660 .flat_map(|s| s.chars())
6661 .skip(1)
6662 .chain(['\n'])
6663 .collect::<String>();
6664
6665 edits.push((
6666 buffer.anchor_after(range_to_move.start)
6667 ..buffer.anchor_before(range_to_move.end),
6668 String::new(),
6669 ));
6670 let insertion_anchor = buffer.anchor_after(insertion_point);
6671 edits.push((insertion_anchor..insertion_anchor, text));
6672
6673 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6674
6675 // Move selections up
6676 new_selections.extend(contiguous_row_selections.drain(..).map(
6677 |mut selection| {
6678 selection.start.row -= row_delta;
6679 selection.end.row -= row_delta;
6680 selection
6681 },
6682 ));
6683
6684 // Move folds up
6685 unfold_ranges.push(range_to_move.clone());
6686 for fold in display_map.folds_in_range(
6687 buffer.anchor_before(range_to_move.start)
6688 ..buffer.anchor_after(range_to_move.end),
6689 ) {
6690 let mut start = fold.range.start.to_point(&buffer);
6691 let mut end = fold.range.end.to_point(&buffer);
6692 start.row -= row_delta;
6693 end.row -= row_delta;
6694 refold_ranges.push((start..end, fold.placeholder.clone()));
6695 }
6696 }
6697 }
6698
6699 // If we didn't move line(s), preserve the existing selections
6700 new_selections.append(&mut contiguous_row_selections);
6701 }
6702
6703 self.transact(cx, |this, cx| {
6704 this.unfold_ranges(unfold_ranges, true, true, cx);
6705 this.buffer.update(cx, |buffer, cx| {
6706 for (range, text) in edits {
6707 buffer.edit([(range, text)], None, cx);
6708 }
6709 });
6710 this.fold_ranges(refold_ranges, true, cx);
6711 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6712 s.select(new_selections);
6713 })
6714 });
6715 }
6716
6717 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6718 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6719 let buffer = self.buffer.read(cx).snapshot(cx);
6720
6721 let mut edits = Vec::new();
6722 let mut unfold_ranges = Vec::new();
6723 let mut refold_ranges = Vec::new();
6724
6725 let selections = self.selections.all::<Point>(cx);
6726 let mut selections = selections.iter().peekable();
6727 let mut contiguous_row_selections = Vec::new();
6728 let mut new_selections = Vec::new();
6729
6730 while let Some(selection) = selections.next() {
6731 // Find all the selections that span a contiguous row range
6732 let (start_row, end_row) = consume_contiguous_rows(
6733 &mut contiguous_row_selections,
6734 selection,
6735 &display_map,
6736 &mut selections,
6737 );
6738
6739 // Move the text spanned by the row range to be after the last line of the row range
6740 if end_row.0 <= buffer.max_point().row {
6741 let range_to_move =
6742 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6743 let insertion_point = display_map
6744 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6745 .0;
6746
6747 // Don't move lines across excerpt boundaries
6748 if buffer
6749 .excerpt_boundaries_in_range((
6750 Bound::Excluded(range_to_move.start),
6751 Bound::Included(insertion_point),
6752 ))
6753 .next()
6754 .is_none()
6755 {
6756 let mut text = String::from("\n");
6757 text.extend(buffer.text_for_range(range_to_move.clone()));
6758 text.pop(); // Drop trailing newline
6759 edits.push((
6760 buffer.anchor_after(range_to_move.start)
6761 ..buffer.anchor_before(range_to_move.end),
6762 String::new(),
6763 ));
6764 let insertion_anchor = buffer.anchor_after(insertion_point);
6765 edits.push((insertion_anchor..insertion_anchor, text));
6766
6767 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6768
6769 // Move selections down
6770 new_selections.extend(contiguous_row_selections.drain(..).map(
6771 |mut selection| {
6772 selection.start.row += row_delta;
6773 selection.end.row += row_delta;
6774 selection
6775 },
6776 ));
6777
6778 // Move folds down
6779 unfold_ranges.push(range_to_move.clone());
6780 for fold in display_map.folds_in_range(
6781 buffer.anchor_before(range_to_move.start)
6782 ..buffer.anchor_after(range_to_move.end),
6783 ) {
6784 let mut start = fold.range.start.to_point(&buffer);
6785 let mut end = fold.range.end.to_point(&buffer);
6786 start.row += row_delta;
6787 end.row += row_delta;
6788 refold_ranges.push((start..end, fold.placeholder.clone()));
6789 }
6790 }
6791 }
6792
6793 // If we didn't move line(s), preserve the existing selections
6794 new_selections.append(&mut contiguous_row_selections);
6795 }
6796
6797 self.transact(cx, |this, cx| {
6798 this.unfold_ranges(unfold_ranges, true, true, cx);
6799 this.buffer.update(cx, |buffer, cx| {
6800 for (range, text) in edits {
6801 buffer.edit([(range, text)], None, cx);
6802 }
6803 });
6804 this.fold_ranges(refold_ranges, true, cx);
6805 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6806 });
6807 }
6808
6809 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6810 let text_layout_details = &self.text_layout_details(cx);
6811 self.transact(cx, |this, cx| {
6812 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6813 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6814 let line_mode = s.line_mode;
6815 s.move_with(|display_map, selection| {
6816 if !selection.is_empty() || line_mode {
6817 return;
6818 }
6819
6820 let mut head = selection.head();
6821 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6822 if head.column() == display_map.line_len(head.row()) {
6823 transpose_offset = display_map
6824 .buffer_snapshot
6825 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6826 }
6827
6828 if transpose_offset == 0 {
6829 return;
6830 }
6831
6832 *head.column_mut() += 1;
6833 head = display_map.clip_point(head, Bias::Right);
6834 let goal = SelectionGoal::HorizontalPosition(
6835 display_map
6836 .x_for_display_point(head, text_layout_details)
6837 .into(),
6838 );
6839 selection.collapse_to(head, goal);
6840
6841 let transpose_start = display_map
6842 .buffer_snapshot
6843 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6844 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6845 let transpose_end = display_map
6846 .buffer_snapshot
6847 .clip_offset(transpose_offset + 1, Bias::Right);
6848 if let Some(ch) =
6849 display_map.buffer_snapshot.chars_at(transpose_start).next()
6850 {
6851 edits.push((transpose_start..transpose_offset, String::new()));
6852 edits.push((transpose_end..transpose_end, ch.to_string()));
6853 }
6854 }
6855 });
6856 edits
6857 });
6858 this.buffer
6859 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6860 let selections = this.selections.all::<usize>(cx);
6861 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6862 s.select(selections);
6863 });
6864 });
6865 }
6866
6867 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6868 self.rewrap_impl(true, cx)
6869 }
6870
6871 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6872 let buffer = self.buffer.read(cx).snapshot(cx);
6873 let selections = self.selections.all::<Point>(cx);
6874 let mut selections = selections.iter().peekable();
6875
6876 let mut edits = Vec::new();
6877 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6878
6879 while let Some(selection) = selections.next() {
6880 let mut start_row = selection.start.row;
6881 let mut end_row = selection.end.row;
6882
6883 // Skip selections that overlap with a range that has already been rewrapped.
6884 let selection_range = start_row..end_row;
6885 if rewrapped_row_ranges
6886 .iter()
6887 .any(|range| range.overlaps(&selection_range))
6888 {
6889 continue;
6890 }
6891
6892 let mut should_rewrap = !only_text;
6893
6894 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6895 match language_scope.language_name().0.as_ref() {
6896 "Markdown" | "Plain Text" => {
6897 should_rewrap = true;
6898 }
6899 _ => {}
6900 }
6901 }
6902
6903 // Since not all lines in the selection may be at the same indent
6904 // level, choose the indent size that is the most common between all
6905 // of the lines.
6906 //
6907 // If there is a tie, we use the deepest indent.
6908 let (indent_size, indent_end) = {
6909 let mut indent_size_occurrences = HashMap::default();
6910 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6911
6912 for row in start_row..=end_row {
6913 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6914 rows_by_indent_size.entry(indent).or_default().push(row);
6915 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6916 }
6917
6918 let indent_size = indent_size_occurrences
6919 .into_iter()
6920 .max_by_key(|(indent, count)| (*count, indent.len))
6921 .map(|(indent, _)| indent)
6922 .unwrap_or_default();
6923 let row = rows_by_indent_size[&indent_size][0];
6924 let indent_end = Point::new(row, indent_size.len);
6925
6926 (indent_size, indent_end)
6927 };
6928
6929 let mut line_prefix = indent_size.chars().collect::<String>();
6930
6931 if let Some(comment_prefix) =
6932 buffer
6933 .language_scope_at(selection.head())
6934 .and_then(|language| {
6935 language
6936 .line_comment_prefixes()
6937 .iter()
6938 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6939 .cloned()
6940 })
6941 {
6942 line_prefix.push_str(&comment_prefix);
6943 should_rewrap = true;
6944 }
6945
6946 if selection.is_empty() {
6947 'expand_upwards: while start_row > 0 {
6948 let prev_row = start_row - 1;
6949 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6950 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6951 {
6952 start_row = prev_row;
6953 } else {
6954 break 'expand_upwards;
6955 }
6956 }
6957
6958 'expand_downwards: while end_row < buffer.max_point().row {
6959 let next_row = end_row + 1;
6960 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6961 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6962 {
6963 end_row = next_row;
6964 } else {
6965 break 'expand_downwards;
6966 }
6967 }
6968 }
6969
6970 if !should_rewrap {
6971 continue;
6972 }
6973
6974 let start = Point::new(start_row, 0);
6975 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6976 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6977 let Some(lines_without_prefixes) = selection_text
6978 .lines()
6979 .map(|line| {
6980 line.strip_prefix(&line_prefix)
6981 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6982 .ok_or_else(|| {
6983 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6984 })
6985 })
6986 .collect::<Result<Vec<_>, _>>()
6987 .log_err()
6988 else {
6989 continue;
6990 };
6991
6992 let unwrapped_text = lines_without_prefixes.join(" ");
6993 let wrap_column = buffer
6994 .settings_at(Point::new(start_row, 0), cx)
6995 .preferred_line_length as usize;
6996 let mut wrapped_text = String::new();
6997 let mut current_line = line_prefix.clone();
6998 for word in unwrapped_text.split_whitespace() {
6999 if current_line.len() + word.len() >= wrap_column {
7000 wrapped_text.push_str(¤t_line);
7001 wrapped_text.push('\n');
7002 current_line.truncate(line_prefix.len());
7003 }
7004
7005 if current_line.len() > line_prefix.len() {
7006 current_line.push(' ');
7007 }
7008
7009 current_line.push_str(word);
7010 }
7011
7012 if !current_line.is_empty() {
7013 wrapped_text.push_str(¤t_line);
7014 }
7015
7016 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7017 let mut offset = start.to_offset(&buffer);
7018 let mut moved_since_edit = true;
7019
7020 for change in diff.iter_all_changes() {
7021 let value = change.value();
7022 match change.tag() {
7023 ChangeTag::Equal => {
7024 offset += value.len();
7025 moved_since_edit = true;
7026 }
7027 ChangeTag::Delete => {
7028 let start = buffer.anchor_after(offset);
7029 let end = buffer.anchor_before(offset + value.len());
7030
7031 if moved_since_edit {
7032 edits.push((start..end, String::new()));
7033 } else {
7034 edits.last_mut().unwrap().0.end = end;
7035 }
7036
7037 offset += value.len();
7038 moved_since_edit = false;
7039 }
7040 ChangeTag::Insert => {
7041 if moved_since_edit {
7042 let anchor = buffer.anchor_after(offset);
7043 edits.push((anchor..anchor, value.to_string()));
7044 } else {
7045 edits.last_mut().unwrap().1.push_str(value);
7046 }
7047
7048 moved_since_edit = false;
7049 }
7050 }
7051 }
7052
7053 rewrapped_row_ranges.push(start_row..=end_row);
7054 }
7055
7056 self.buffer
7057 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7058 }
7059
7060 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7061 let mut text = String::new();
7062 let buffer = self.buffer.read(cx).snapshot(cx);
7063 let mut selections = self.selections.all::<Point>(cx);
7064 let mut clipboard_selections = Vec::with_capacity(selections.len());
7065 {
7066 let max_point = buffer.max_point();
7067 let mut is_first = true;
7068 for selection in &mut selections {
7069 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7070 if is_entire_line {
7071 selection.start = Point::new(selection.start.row, 0);
7072 if !selection.is_empty() && selection.end.column == 0 {
7073 selection.end = cmp::min(max_point, selection.end);
7074 } else {
7075 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7076 }
7077 selection.goal = SelectionGoal::None;
7078 }
7079 if is_first {
7080 is_first = false;
7081 } else {
7082 text += "\n";
7083 }
7084 let mut len = 0;
7085 for chunk in buffer.text_for_range(selection.start..selection.end) {
7086 text.push_str(chunk);
7087 len += chunk.len();
7088 }
7089 clipboard_selections.push(ClipboardSelection {
7090 len,
7091 is_entire_line,
7092 first_line_indent: buffer
7093 .indent_size_for_line(MultiBufferRow(selection.start.row))
7094 .len,
7095 });
7096 }
7097 }
7098
7099 self.transact(cx, |this, cx| {
7100 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7101 s.select(selections);
7102 });
7103 this.insert("", cx);
7104 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7105 text,
7106 clipboard_selections,
7107 ));
7108 });
7109 }
7110
7111 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7112 let selections = self.selections.all::<Point>(cx);
7113 let buffer = self.buffer.read(cx).read(cx);
7114 let mut text = String::new();
7115
7116 let mut clipboard_selections = Vec::with_capacity(selections.len());
7117 {
7118 let max_point = buffer.max_point();
7119 let mut is_first = true;
7120 for selection in selections.iter() {
7121 let mut start = selection.start;
7122 let mut end = selection.end;
7123 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7124 if is_entire_line {
7125 start = Point::new(start.row, 0);
7126 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7127 }
7128 if is_first {
7129 is_first = false;
7130 } else {
7131 text += "\n";
7132 }
7133 let mut len = 0;
7134 for chunk in buffer.text_for_range(start..end) {
7135 text.push_str(chunk);
7136 len += chunk.len();
7137 }
7138 clipboard_selections.push(ClipboardSelection {
7139 len,
7140 is_entire_line,
7141 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7142 });
7143 }
7144 }
7145
7146 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7147 text,
7148 clipboard_selections,
7149 ));
7150 }
7151
7152 pub fn do_paste(
7153 &mut self,
7154 text: &String,
7155 clipboard_selections: Option<Vec<ClipboardSelection>>,
7156 handle_entire_lines: bool,
7157 cx: &mut ViewContext<Self>,
7158 ) {
7159 if self.read_only(cx) {
7160 return;
7161 }
7162
7163 let clipboard_text = Cow::Borrowed(text);
7164
7165 self.transact(cx, |this, cx| {
7166 if let Some(mut clipboard_selections) = clipboard_selections {
7167 let old_selections = this.selections.all::<usize>(cx);
7168 let all_selections_were_entire_line =
7169 clipboard_selections.iter().all(|s| s.is_entire_line);
7170 let first_selection_indent_column =
7171 clipboard_selections.first().map(|s| s.first_line_indent);
7172 if clipboard_selections.len() != old_selections.len() {
7173 clipboard_selections.drain(..);
7174 }
7175
7176 this.buffer.update(cx, |buffer, cx| {
7177 let snapshot = buffer.read(cx);
7178 let mut start_offset = 0;
7179 let mut edits = Vec::new();
7180 let mut original_indent_columns = Vec::new();
7181 for (ix, selection) in old_selections.iter().enumerate() {
7182 let to_insert;
7183 let entire_line;
7184 let original_indent_column;
7185 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7186 let end_offset = start_offset + clipboard_selection.len;
7187 to_insert = &clipboard_text[start_offset..end_offset];
7188 entire_line = clipboard_selection.is_entire_line;
7189 start_offset = end_offset + 1;
7190 original_indent_column = Some(clipboard_selection.first_line_indent);
7191 } else {
7192 to_insert = clipboard_text.as_str();
7193 entire_line = all_selections_were_entire_line;
7194 original_indent_column = first_selection_indent_column
7195 }
7196
7197 // If the corresponding selection was empty when this slice of the
7198 // clipboard text was written, then the entire line containing the
7199 // selection was copied. If this selection is also currently empty,
7200 // then paste the line before the current line of the buffer.
7201 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7202 let column = selection.start.to_point(&snapshot).column as usize;
7203 let line_start = selection.start - column;
7204 line_start..line_start
7205 } else {
7206 selection.range()
7207 };
7208
7209 edits.push((range, to_insert));
7210 original_indent_columns.extend(original_indent_column);
7211 }
7212 drop(snapshot);
7213
7214 buffer.edit(
7215 edits,
7216 Some(AutoindentMode::Block {
7217 original_indent_columns,
7218 }),
7219 cx,
7220 );
7221 });
7222
7223 let selections = this.selections.all::<usize>(cx);
7224 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7225 } else {
7226 this.insert(&clipboard_text, cx);
7227 }
7228 });
7229 }
7230
7231 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7232 if let Some(item) = cx.read_from_clipboard() {
7233 let entries = item.entries();
7234
7235 match entries.first() {
7236 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7237 // of all the pasted entries.
7238 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7239 .do_paste(
7240 clipboard_string.text(),
7241 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7242 true,
7243 cx,
7244 ),
7245 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7246 }
7247 }
7248 }
7249
7250 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7251 if self.read_only(cx) {
7252 return;
7253 }
7254
7255 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7256 if let Some((selections, _)) =
7257 self.selection_history.transaction(transaction_id).cloned()
7258 {
7259 self.change_selections(None, cx, |s| {
7260 s.select_anchors(selections.to_vec());
7261 });
7262 }
7263 self.request_autoscroll(Autoscroll::fit(), cx);
7264 self.unmark_text(cx);
7265 self.refresh_inline_completion(true, false, cx);
7266 cx.emit(EditorEvent::Edited { transaction_id });
7267 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7268 }
7269 }
7270
7271 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7272 if self.read_only(cx) {
7273 return;
7274 }
7275
7276 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7277 if let Some((_, Some(selections))) =
7278 self.selection_history.transaction(transaction_id).cloned()
7279 {
7280 self.change_selections(None, cx, |s| {
7281 s.select_anchors(selections.to_vec());
7282 });
7283 }
7284 self.request_autoscroll(Autoscroll::fit(), cx);
7285 self.unmark_text(cx);
7286 self.refresh_inline_completion(true, false, cx);
7287 cx.emit(EditorEvent::Edited { transaction_id });
7288 }
7289 }
7290
7291 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7292 self.buffer
7293 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7294 }
7295
7296 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7297 self.buffer
7298 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7299 }
7300
7301 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7302 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7303 let line_mode = s.line_mode;
7304 s.move_with(|map, selection| {
7305 let cursor = if selection.is_empty() && !line_mode {
7306 movement::left(map, selection.start)
7307 } else {
7308 selection.start
7309 };
7310 selection.collapse_to(cursor, SelectionGoal::None);
7311 });
7312 })
7313 }
7314
7315 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7316 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7317 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7318 })
7319 }
7320
7321 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7323 let line_mode = s.line_mode;
7324 s.move_with(|map, selection| {
7325 let cursor = if selection.is_empty() && !line_mode {
7326 movement::right(map, selection.end)
7327 } else {
7328 selection.end
7329 };
7330 selection.collapse_to(cursor, SelectionGoal::None)
7331 });
7332 })
7333 }
7334
7335 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7336 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7337 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7338 })
7339 }
7340
7341 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7342 if self.take_rename(true, cx).is_some() {
7343 return;
7344 }
7345
7346 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7347 cx.propagate();
7348 return;
7349 }
7350
7351 let text_layout_details = &self.text_layout_details(cx);
7352 let selection_count = self.selections.count();
7353 let first_selection = self.selections.first_anchor();
7354
7355 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7356 let line_mode = s.line_mode;
7357 s.move_with(|map, selection| {
7358 if !selection.is_empty() && !line_mode {
7359 selection.goal = SelectionGoal::None;
7360 }
7361 let (cursor, goal) = movement::up(
7362 map,
7363 selection.start,
7364 selection.goal,
7365 false,
7366 text_layout_details,
7367 );
7368 selection.collapse_to(cursor, goal);
7369 });
7370 });
7371
7372 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7373 {
7374 cx.propagate();
7375 }
7376 }
7377
7378 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7379 if self.take_rename(true, cx).is_some() {
7380 return;
7381 }
7382
7383 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7384 cx.propagate();
7385 return;
7386 }
7387
7388 let text_layout_details = &self.text_layout_details(cx);
7389
7390 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7391 let line_mode = s.line_mode;
7392 s.move_with(|map, selection| {
7393 if !selection.is_empty() && !line_mode {
7394 selection.goal = SelectionGoal::None;
7395 }
7396 let (cursor, goal) = movement::up_by_rows(
7397 map,
7398 selection.start,
7399 action.lines,
7400 selection.goal,
7401 false,
7402 text_layout_details,
7403 );
7404 selection.collapse_to(cursor, goal);
7405 });
7406 })
7407 }
7408
7409 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7410 if self.take_rename(true, cx).is_some() {
7411 return;
7412 }
7413
7414 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7415 cx.propagate();
7416 return;
7417 }
7418
7419 let text_layout_details = &self.text_layout_details(cx);
7420
7421 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7422 let line_mode = s.line_mode;
7423 s.move_with(|map, selection| {
7424 if !selection.is_empty() && !line_mode {
7425 selection.goal = SelectionGoal::None;
7426 }
7427 let (cursor, goal) = movement::down_by_rows(
7428 map,
7429 selection.start,
7430 action.lines,
7431 selection.goal,
7432 false,
7433 text_layout_details,
7434 );
7435 selection.collapse_to(cursor, goal);
7436 });
7437 })
7438 }
7439
7440 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7441 let text_layout_details = &self.text_layout_details(cx);
7442 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7443 s.move_heads_with(|map, head, goal| {
7444 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7445 })
7446 })
7447 }
7448
7449 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7450 let text_layout_details = &self.text_layout_details(cx);
7451 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7452 s.move_heads_with(|map, head, goal| {
7453 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7454 })
7455 })
7456 }
7457
7458 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7459 let Some(row_count) = self.visible_row_count() else {
7460 return;
7461 };
7462
7463 let text_layout_details = &self.text_layout_details(cx);
7464
7465 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7466 s.move_heads_with(|map, head, goal| {
7467 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7468 })
7469 })
7470 }
7471
7472 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7473 if self.take_rename(true, cx).is_some() {
7474 return;
7475 }
7476
7477 if self
7478 .context_menu
7479 .write()
7480 .as_mut()
7481 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7482 .unwrap_or(false)
7483 {
7484 return;
7485 }
7486
7487 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7488 cx.propagate();
7489 return;
7490 }
7491
7492 let Some(row_count) = self.visible_row_count() else {
7493 return;
7494 };
7495
7496 let autoscroll = if action.center_cursor {
7497 Autoscroll::center()
7498 } else {
7499 Autoscroll::fit()
7500 };
7501
7502 let text_layout_details = &self.text_layout_details(cx);
7503
7504 self.change_selections(Some(autoscroll), cx, |s| {
7505 let line_mode = s.line_mode;
7506 s.move_with(|map, selection| {
7507 if !selection.is_empty() && !line_mode {
7508 selection.goal = SelectionGoal::None;
7509 }
7510 let (cursor, goal) = movement::up_by_rows(
7511 map,
7512 selection.end,
7513 row_count,
7514 selection.goal,
7515 false,
7516 text_layout_details,
7517 );
7518 selection.collapse_to(cursor, goal);
7519 });
7520 });
7521 }
7522
7523 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7524 let text_layout_details = &self.text_layout_details(cx);
7525 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7526 s.move_heads_with(|map, head, goal| {
7527 movement::up(map, head, goal, false, text_layout_details)
7528 })
7529 })
7530 }
7531
7532 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7533 self.take_rename(true, cx);
7534
7535 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7536 cx.propagate();
7537 return;
7538 }
7539
7540 let text_layout_details = &self.text_layout_details(cx);
7541 let selection_count = self.selections.count();
7542 let first_selection = self.selections.first_anchor();
7543
7544 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7545 let line_mode = s.line_mode;
7546 s.move_with(|map, selection| {
7547 if !selection.is_empty() && !line_mode {
7548 selection.goal = SelectionGoal::None;
7549 }
7550 let (cursor, goal) = movement::down(
7551 map,
7552 selection.end,
7553 selection.goal,
7554 false,
7555 text_layout_details,
7556 );
7557 selection.collapse_to(cursor, goal);
7558 });
7559 });
7560
7561 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7562 {
7563 cx.propagate();
7564 }
7565 }
7566
7567 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7568 let Some(row_count) = self.visible_row_count() else {
7569 return;
7570 };
7571
7572 let text_layout_details = &self.text_layout_details(cx);
7573
7574 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7575 s.move_heads_with(|map, head, goal| {
7576 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7577 })
7578 })
7579 }
7580
7581 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7582 if self.take_rename(true, cx).is_some() {
7583 return;
7584 }
7585
7586 if self
7587 .context_menu
7588 .write()
7589 .as_mut()
7590 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7591 .unwrap_or(false)
7592 {
7593 return;
7594 }
7595
7596 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7597 cx.propagate();
7598 return;
7599 }
7600
7601 let Some(row_count) = self.visible_row_count() else {
7602 return;
7603 };
7604
7605 let autoscroll = if action.center_cursor {
7606 Autoscroll::center()
7607 } else {
7608 Autoscroll::fit()
7609 };
7610
7611 let text_layout_details = &self.text_layout_details(cx);
7612 self.change_selections(Some(autoscroll), cx, |s| {
7613 let line_mode = s.line_mode;
7614 s.move_with(|map, selection| {
7615 if !selection.is_empty() && !line_mode {
7616 selection.goal = SelectionGoal::None;
7617 }
7618 let (cursor, goal) = movement::down_by_rows(
7619 map,
7620 selection.end,
7621 row_count,
7622 selection.goal,
7623 false,
7624 text_layout_details,
7625 );
7626 selection.collapse_to(cursor, goal);
7627 });
7628 });
7629 }
7630
7631 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7632 let text_layout_details = &self.text_layout_details(cx);
7633 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7634 s.move_heads_with(|map, head, goal| {
7635 movement::down(map, head, goal, false, text_layout_details)
7636 })
7637 });
7638 }
7639
7640 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7641 if let Some(context_menu) = self.context_menu.write().as_mut() {
7642 context_menu.select_first(self.completion_provider.as_deref(), cx);
7643 }
7644 }
7645
7646 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7647 if let Some(context_menu) = self.context_menu.write().as_mut() {
7648 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7649 }
7650 }
7651
7652 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7653 if let Some(context_menu) = self.context_menu.write().as_mut() {
7654 context_menu.select_next(self.completion_provider.as_deref(), cx);
7655 }
7656 }
7657
7658 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7659 if let Some(context_menu) = self.context_menu.write().as_mut() {
7660 context_menu.select_last(self.completion_provider.as_deref(), cx);
7661 }
7662 }
7663
7664 pub fn move_to_previous_word_start(
7665 &mut self,
7666 _: &MoveToPreviousWordStart,
7667 cx: &mut ViewContext<Self>,
7668 ) {
7669 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7670 s.move_cursors_with(|map, head, _| {
7671 (
7672 movement::previous_word_start(map, head),
7673 SelectionGoal::None,
7674 )
7675 });
7676 })
7677 }
7678
7679 pub fn move_to_previous_subword_start(
7680 &mut self,
7681 _: &MoveToPreviousSubwordStart,
7682 cx: &mut ViewContext<Self>,
7683 ) {
7684 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7685 s.move_cursors_with(|map, head, _| {
7686 (
7687 movement::previous_subword_start(map, head),
7688 SelectionGoal::None,
7689 )
7690 });
7691 })
7692 }
7693
7694 pub fn select_to_previous_word_start(
7695 &mut self,
7696 _: &SelectToPreviousWordStart,
7697 cx: &mut ViewContext<Self>,
7698 ) {
7699 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7700 s.move_heads_with(|map, head, _| {
7701 (
7702 movement::previous_word_start(map, head),
7703 SelectionGoal::None,
7704 )
7705 });
7706 })
7707 }
7708
7709 pub fn select_to_previous_subword_start(
7710 &mut self,
7711 _: &SelectToPreviousSubwordStart,
7712 cx: &mut ViewContext<Self>,
7713 ) {
7714 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7715 s.move_heads_with(|map, head, _| {
7716 (
7717 movement::previous_subword_start(map, head),
7718 SelectionGoal::None,
7719 )
7720 });
7721 })
7722 }
7723
7724 pub fn delete_to_previous_word_start(
7725 &mut self,
7726 action: &DeleteToPreviousWordStart,
7727 cx: &mut ViewContext<Self>,
7728 ) {
7729 self.transact(cx, |this, cx| {
7730 this.select_autoclose_pair(cx);
7731 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7732 let line_mode = s.line_mode;
7733 s.move_with(|map, selection| {
7734 if selection.is_empty() && !line_mode {
7735 let cursor = if action.ignore_newlines {
7736 movement::previous_word_start(map, selection.head())
7737 } else {
7738 movement::previous_word_start_or_newline(map, selection.head())
7739 };
7740 selection.set_head(cursor, SelectionGoal::None);
7741 }
7742 });
7743 });
7744 this.insert("", cx);
7745 });
7746 }
7747
7748 pub fn delete_to_previous_subword_start(
7749 &mut self,
7750 _: &DeleteToPreviousSubwordStart,
7751 cx: &mut ViewContext<Self>,
7752 ) {
7753 self.transact(cx, |this, cx| {
7754 this.select_autoclose_pair(cx);
7755 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7756 let line_mode = s.line_mode;
7757 s.move_with(|map, selection| {
7758 if selection.is_empty() && !line_mode {
7759 let cursor = movement::previous_subword_start(map, selection.head());
7760 selection.set_head(cursor, SelectionGoal::None);
7761 }
7762 });
7763 });
7764 this.insert("", cx);
7765 });
7766 }
7767
7768 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7770 s.move_cursors_with(|map, head, _| {
7771 (movement::next_word_end(map, head), SelectionGoal::None)
7772 });
7773 })
7774 }
7775
7776 pub fn move_to_next_subword_end(
7777 &mut self,
7778 _: &MoveToNextSubwordEnd,
7779 cx: &mut ViewContext<Self>,
7780 ) {
7781 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7782 s.move_cursors_with(|map, head, _| {
7783 (movement::next_subword_end(map, head), SelectionGoal::None)
7784 });
7785 })
7786 }
7787
7788 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7789 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7790 s.move_heads_with(|map, head, _| {
7791 (movement::next_word_end(map, head), SelectionGoal::None)
7792 });
7793 })
7794 }
7795
7796 pub fn select_to_next_subword_end(
7797 &mut self,
7798 _: &SelectToNextSubwordEnd,
7799 cx: &mut ViewContext<Self>,
7800 ) {
7801 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7802 s.move_heads_with(|map, head, _| {
7803 (movement::next_subword_end(map, head), SelectionGoal::None)
7804 });
7805 })
7806 }
7807
7808 pub fn delete_to_next_word_end(
7809 &mut self,
7810 action: &DeleteToNextWordEnd,
7811 cx: &mut ViewContext<Self>,
7812 ) {
7813 self.transact(cx, |this, cx| {
7814 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7815 let line_mode = s.line_mode;
7816 s.move_with(|map, selection| {
7817 if selection.is_empty() && !line_mode {
7818 let cursor = if action.ignore_newlines {
7819 movement::next_word_end(map, selection.head())
7820 } else {
7821 movement::next_word_end_or_newline(map, selection.head())
7822 };
7823 selection.set_head(cursor, SelectionGoal::None);
7824 }
7825 });
7826 });
7827 this.insert("", cx);
7828 });
7829 }
7830
7831 pub fn delete_to_next_subword_end(
7832 &mut self,
7833 _: &DeleteToNextSubwordEnd,
7834 cx: &mut ViewContext<Self>,
7835 ) {
7836 self.transact(cx, |this, cx| {
7837 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7838 s.move_with(|map, selection| {
7839 if selection.is_empty() {
7840 let cursor = movement::next_subword_end(map, selection.head());
7841 selection.set_head(cursor, SelectionGoal::None);
7842 }
7843 });
7844 });
7845 this.insert("", cx);
7846 });
7847 }
7848
7849 pub fn move_to_beginning_of_line(
7850 &mut self,
7851 action: &MoveToBeginningOfLine,
7852 cx: &mut ViewContext<Self>,
7853 ) {
7854 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7855 s.move_cursors_with(|map, head, _| {
7856 (
7857 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7858 SelectionGoal::None,
7859 )
7860 });
7861 })
7862 }
7863
7864 pub fn select_to_beginning_of_line(
7865 &mut self,
7866 action: &SelectToBeginningOfLine,
7867 cx: &mut ViewContext<Self>,
7868 ) {
7869 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7870 s.move_heads_with(|map, head, _| {
7871 (
7872 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7873 SelectionGoal::None,
7874 )
7875 });
7876 });
7877 }
7878
7879 pub fn delete_to_beginning_of_line(
7880 &mut self,
7881 _: &DeleteToBeginningOfLine,
7882 cx: &mut ViewContext<Self>,
7883 ) {
7884 self.transact(cx, |this, cx| {
7885 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7886 s.move_with(|_, selection| {
7887 selection.reversed = true;
7888 });
7889 });
7890
7891 this.select_to_beginning_of_line(
7892 &SelectToBeginningOfLine {
7893 stop_at_soft_wraps: false,
7894 },
7895 cx,
7896 );
7897 this.backspace(&Backspace, cx);
7898 });
7899 }
7900
7901 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7902 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7903 s.move_cursors_with(|map, head, _| {
7904 (
7905 movement::line_end(map, head, action.stop_at_soft_wraps),
7906 SelectionGoal::None,
7907 )
7908 });
7909 })
7910 }
7911
7912 pub fn select_to_end_of_line(
7913 &mut self,
7914 action: &SelectToEndOfLine,
7915 cx: &mut ViewContext<Self>,
7916 ) {
7917 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7918 s.move_heads_with(|map, head, _| {
7919 (
7920 movement::line_end(map, head, action.stop_at_soft_wraps),
7921 SelectionGoal::None,
7922 )
7923 });
7924 })
7925 }
7926
7927 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7928 self.transact(cx, |this, cx| {
7929 this.select_to_end_of_line(
7930 &SelectToEndOfLine {
7931 stop_at_soft_wraps: false,
7932 },
7933 cx,
7934 );
7935 this.delete(&Delete, cx);
7936 });
7937 }
7938
7939 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7940 self.transact(cx, |this, cx| {
7941 this.select_to_end_of_line(
7942 &SelectToEndOfLine {
7943 stop_at_soft_wraps: false,
7944 },
7945 cx,
7946 );
7947 this.cut(&Cut, cx);
7948 });
7949 }
7950
7951 pub fn move_to_start_of_paragraph(
7952 &mut self,
7953 _: &MoveToStartOfParagraph,
7954 cx: &mut ViewContext<Self>,
7955 ) {
7956 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7957 cx.propagate();
7958 return;
7959 }
7960
7961 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7962 s.move_with(|map, selection| {
7963 selection.collapse_to(
7964 movement::start_of_paragraph(map, selection.head(), 1),
7965 SelectionGoal::None,
7966 )
7967 });
7968 })
7969 }
7970
7971 pub fn move_to_end_of_paragraph(
7972 &mut self,
7973 _: &MoveToEndOfParagraph,
7974 cx: &mut ViewContext<Self>,
7975 ) {
7976 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7977 cx.propagate();
7978 return;
7979 }
7980
7981 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7982 s.move_with(|map, selection| {
7983 selection.collapse_to(
7984 movement::end_of_paragraph(map, selection.head(), 1),
7985 SelectionGoal::None,
7986 )
7987 });
7988 })
7989 }
7990
7991 pub fn select_to_start_of_paragraph(
7992 &mut self,
7993 _: &SelectToStartOfParagraph,
7994 cx: &mut ViewContext<Self>,
7995 ) {
7996 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7997 cx.propagate();
7998 return;
7999 }
8000
8001 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8002 s.move_heads_with(|map, head, _| {
8003 (
8004 movement::start_of_paragraph(map, head, 1),
8005 SelectionGoal::None,
8006 )
8007 });
8008 })
8009 }
8010
8011 pub fn select_to_end_of_paragraph(
8012 &mut self,
8013 _: &SelectToEndOfParagraph,
8014 cx: &mut ViewContext<Self>,
8015 ) {
8016 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8017 cx.propagate();
8018 return;
8019 }
8020
8021 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8022 s.move_heads_with(|map, head, _| {
8023 (
8024 movement::end_of_paragraph(map, head, 1),
8025 SelectionGoal::None,
8026 )
8027 });
8028 })
8029 }
8030
8031 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8032 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8033 cx.propagate();
8034 return;
8035 }
8036
8037 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8038 s.select_ranges(vec![0..0]);
8039 });
8040 }
8041
8042 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8043 let mut selection = self.selections.last::<Point>(cx);
8044 selection.set_head(Point::zero(), SelectionGoal::None);
8045
8046 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8047 s.select(vec![selection]);
8048 });
8049 }
8050
8051 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8052 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8053 cx.propagate();
8054 return;
8055 }
8056
8057 let cursor = self.buffer.read(cx).read(cx).len();
8058 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8059 s.select_ranges(vec![cursor..cursor])
8060 });
8061 }
8062
8063 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8064 self.nav_history = nav_history;
8065 }
8066
8067 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8068 self.nav_history.as_ref()
8069 }
8070
8071 fn push_to_nav_history(
8072 &mut self,
8073 cursor_anchor: Anchor,
8074 new_position: Option<Point>,
8075 cx: &mut ViewContext<Self>,
8076 ) {
8077 if let Some(nav_history) = self.nav_history.as_mut() {
8078 let buffer = self.buffer.read(cx).read(cx);
8079 let cursor_position = cursor_anchor.to_point(&buffer);
8080 let scroll_state = self.scroll_manager.anchor();
8081 let scroll_top_row = scroll_state.top_row(&buffer);
8082 drop(buffer);
8083
8084 if let Some(new_position) = new_position {
8085 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8086 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8087 return;
8088 }
8089 }
8090
8091 nav_history.push(
8092 Some(NavigationData {
8093 cursor_anchor,
8094 cursor_position,
8095 scroll_anchor: scroll_state,
8096 scroll_top_row,
8097 }),
8098 cx,
8099 );
8100 }
8101 }
8102
8103 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8104 let buffer = self.buffer.read(cx).snapshot(cx);
8105 let mut selection = self.selections.first::<usize>(cx);
8106 selection.set_head(buffer.len(), SelectionGoal::None);
8107 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8108 s.select(vec![selection]);
8109 });
8110 }
8111
8112 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8113 let end = self.buffer.read(cx).read(cx).len();
8114 self.change_selections(None, cx, |s| {
8115 s.select_ranges(vec![0..end]);
8116 });
8117 }
8118
8119 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8120 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8121 let mut selections = self.selections.all::<Point>(cx);
8122 let max_point = display_map.buffer_snapshot.max_point();
8123 for selection in &mut selections {
8124 let rows = selection.spanned_rows(true, &display_map);
8125 selection.start = Point::new(rows.start.0, 0);
8126 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8127 selection.reversed = false;
8128 }
8129 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8130 s.select(selections);
8131 });
8132 }
8133
8134 pub fn split_selection_into_lines(
8135 &mut self,
8136 _: &SplitSelectionIntoLines,
8137 cx: &mut ViewContext<Self>,
8138 ) {
8139 let mut to_unfold = Vec::new();
8140 let mut new_selection_ranges = Vec::new();
8141 {
8142 let selections = self.selections.all::<Point>(cx);
8143 let buffer = self.buffer.read(cx).read(cx);
8144 for selection in selections {
8145 for row in selection.start.row..selection.end.row {
8146 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8147 new_selection_ranges.push(cursor..cursor);
8148 }
8149 new_selection_ranges.push(selection.end..selection.end);
8150 to_unfold.push(selection.start..selection.end);
8151 }
8152 }
8153 self.unfold_ranges(to_unfold, true, true, cx);
8154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8155 s.select_ranges(new_selection_ranges);
8156 });
8157 }
8158
8159 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8160 self.add_selection(true, cx);
8161 }
8162
8163 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8164 self.add_selection(false, cx);
8165 }
8166
8167 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8168 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8169 let mut selections = self.selections.all::<Point>(cx);
8170 let text_layout_details = self.text_layout_details(cx);
8171 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8172 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8173 let range = oldest_selection.display_range(&display_map).sorted();
8174
8175 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8176 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8177 let positions = start_x.min(end_x)..start_x.max(end_x);
8178
8179 selections.clear();
8180 let mut stack = Vec::new();
8181 for row in range.start.row().0..=range.end.row().0 {
8182 if let Some(selection) = self.selections.build_columnar_selection(
8183 &display_map,
8184 DisplayRow(row),
8185 &positions,
8186 oldest_selection.reversed,
8187 &text_layout_details,
8188 ) {
8189 stack.push(selection.id);
8190 selections.push(selection);
8191 }
8192 }
8193
8194 if above {
8195 stack.reverse();
8196 }
8197
8198 AddSelectionsState { above, stack }
8199 });
8200
8201 let last_added_selection = *state.stack.last().unwrap();
8202 let mut new_selections = Vec::new();
8203 if above == state.above {
8204 let end_row = if above {
8205 DisplayRow(0)
8206 } else {
8207 display_map.max_point().row()
8208 };
8209
8210 'outer: for selection in selections {
8211 if selection.id == last_added_selection {
8212 let range = selection.display_range(&display_map).sorted();
8213 debug_assert_eq!(range.start.row(), range.end.row());
8214 let mut row = range.start.row();
8215 let positions =
8216 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8217 px(start)..px(end)
8218 } else {
8219 let start_x =
8220 display_map.x_for_display_point(range.start, &text_layout_details);
8221 let end_x =
8222 display_map.x_for_display_point(range.end, &text_layout_details);
8223 start_x.min(end_x)..start_x.max(end_x)
8224 };
8225
8226 while row != end_row {
8227 if above {
8228 row.0 -= 1;
8229 } else {
8230 row.0 += 1;
8231 }
8232
8233 if let Some(new_selection) = self.selections.build_columnar_selection(
8234 &display_map,
8235 row,
8236 &positions,
8237 selection.reversed,
8238 &text_layout_details,
8239 ) {
8240 state.stack.push(new_selection.id);
8241 if above {
8242 new_selections.push(new_selection);
8243 new_selections.push(selection);
8244 } else {
8245 new_selections.push(selection);
8246 new_selections.push(new_selection);
8247 }
8248
8249 continue 'outer;
8250 }
8251 }
8252 }
8253
8254 new_selections.push(selection);
8255 }
8256 } else {
8257 new_selections = selections;
8258 new_selections.retain(|s| s.id != last_added_selection);
8259 state.stack.pop();
8260 }
8261
8262 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8263 s.select(new_selections);
8264 });
8265 if state.stack.len() > 1 {
8266 self.add_selections_state = Some(state);
8267 }
8268 }
8269
8270 pub fn select_next_match_internal(
8271 &mut self,
8272 display_map: &DisplaySnapshot,
8273 replace_newest: bool,
8274 autoscroll: Option<Autoscroll>,
8275 cx: &mut ViewContext<Self>,
8276 ) -> Result<()> {
8277 fn select_next_match_ranges(
8278 this: &mut Editor,
8279 range: Range<usize>,
8280 replace_newest: bool,
8281 auto_scroll: Option<Autoscroll>,
8282 cx: &mut ViewContext<Editor>,
8283 ) {
8284 this.unfold_ranges([range.clone()], false, true, cx);
8285 this.change_selections(auto_scroll, cx, |s| {
8286 if replace_newest {
8287 s.delete(s.newest_anchor().id);
8288 }
8289 s.insert_range(range.clone());
8290 });
8291 }
8292
8293 let buffer = &display_map.buffer_snapshot;
8294 let mut selections = self.selections.all::<usize>(cx);
8295 if let Some(mut select_next_state) = self.select_next_state.take() {
8296 let query = &select_next_state.query;
8297 if !select_next_state.done {
8298 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8299 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8300 let mut next_selected_range = None;
8301
8302 let bytes_after_last_selection =
8303 buffer.bytes_in_range(last_selection.end..buffer.len());
8304 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8305 let query_matches = query
8306 .stream_find_iter(bytes_after_last_selection)
8307 .map(|result| (last_selection.end, result))
8308 .chain(
8309 query
8310 .stream_find_iter(bytes_before_first_selection)
8311 .map(|result| (0, result)),
8312 );
8313
8314 for (start_offset, query_match) in query_matches {
8315 let query_match = query_match.unwrap(); // can only fail due to I/O
8316 let offset_range =
8317 start_offset + query_match.start()..start_offset + query_match.end();
8318 let display_range = offset_range.start.to_display_point(display_map)
8319 ..offset_range.end.to_display_point(display_map);
8320
8321 if !select_next_state.wordwise
8322 || (!movement::is_inside_word(display_map, display_range.start)
8323 && !movement::is_inside_word(display_map, display_range.end))
8324 {
8325 // TODO: This is n^2, because we might check all the selections
8326 if !selections
8327 .iter()
8328 .any(|selection| selection.range().overlaps(&offset_range))
8329 {
8330 next_selected_range = Some(offset_range);
8331 break;
8332 }
8333 }
8334 }
8335
8336 if let Some(next_selected_range) = next_selected_range {
8337 select_next_match_ranges(
8338 self,
8339 next_selected_range,
8340 replace_newest,
8341 autoscroll,
8342 cx,
8343 );
8344 } else {
8345 select_next_state.done = true;
8346 }
8347 }
8348
8349 self.select_next_state = Some(select_next_state);
8350 } else {
8351 let mut only_carets = true;
8352 let mut same_text_selected = true;
8353 let mut selected_text = None;
8354
8355 let mut selections_iter = selections.iter().peekable();
8356 while let Some(selection) = selections_iter.next() {
8357 if selection.start != selection.end {
8358 only_carets = false;
8359 }
8360
8361 if same_text_selected {
8362 if selected_text.is_none() {
8363 selected_text =
8364 Some(buffer.text_for_range(selection.range()).collect::<String>());
8365 }
8366
8367 if let Some(next_selection) = selections_iter.peek() {
8368 if next_selection.range().len() == selection.range().len() {
8369 let next_selected_text = buffer
8370 .text_for_range(next_selection.range())
8371 .collect::<String>();
8372 if Some(next_selected_text) != selected_text {
8373 same_text_selected = false;
8374 selected_text = None;
8375 }
8376 } else {
8377 same_text_selected = false;
8378 selected_text = None;
8379 }
8380 }
8381 }
8382 }
8383
8384 if only_carets {
8385 for selection in &mut selections {
8386 let word_range = movement::surrounding_word(
8387 display_map,
8388 selection.start.to_display_point(display_map),
8389 );
8390 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8391 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8392 selection.goal = SelectionGoal::None;
8393 selection.reversed = false;
8394 select_next_match_ranges(
8395 self,
8396 selection.start..selection.end,
8397 replace_newest,
8398 autoscroll,
8399 cx,
8400 );
8401 }
8402
8403 if selections.len() == 1 {
8404 let selection = selections
8405 .last()
8406 .expect("ensured that there's only one selection");
8407 let query = buffer
8408 .text_for_range(selection.start..selection.end)
8409 .collect::<String>();
8410 let is_empty = query.is_empty();
8411 let select_state = SelectNextState {
8412 query: AhoCorasick::new(&[query])?,
8413 wordwise: true,
8414 done: is_empty,
8415 };
8416 self.select_next_state = Some(select_state);
8417 } else {
8418 self.select_next_state = None;
8419 }
8420 } else if let Some(selected_text) = selected_text {
8421 self.select_next_state = Some(SelectNextState {
8422 query: AhoCorasick::new(&[selected_text])?,
8423 wordwise: false,
8424 done: false,
8425 });
8426 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8427 }
8428 }
8429 Ok(())
8430 }
8431
8432 pub fn select_all_matches(
8433 &mut self,
8434 _action: &SelectAllMatches,
8435 cx: &mut ViewContext<Self>,
8436 ) -> Result<()> {
8437 self.push_to_selection_history();
8438 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8439
8440 self.select_next_match_internal(&display_map, false, None, cx)?;
8441 let Some(select_next_state) = self.select_next_state.as_mut() else {
8442 return Ok(());
8443 };
8444 if select_next_state.done {
8445 return Ok(());
8446 }
8447
8448 let mut new_selections = self.selections.all::<usize>(cx);
8449
8450 let buffer = &display_map.buffer_snapshot;
8451 let query_matches = select_next_state
8452 .query
8453 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8454
8455 for query_match in query_matches {
8456 let query_match = query_match.unwrap(); // can only fail due to I/O
8457 let offset_range = query_match.start()..query_match.end();
8458 let display_range = offset_range.start.to_display_point(&display_map)
8459 ..offset_range.end.to_display_point(&display_map);
8460
8461 if !select_next_state.wordwise
8462 || (!movement::is_inside_word(&display_map, display_range.start)
8463 && !movement::is_inside_word(&display_map, display_range.end))
8464 {
8465 self.selections.change_with(cx, |selections| {
8466 new_selections.push(Selection {
8467 id: selections.new_selection_id(),
8468 start: offset_range.start,
8469 end: offset_range.end,
8470 reversed: false,
8471 goal: SelectionGoal::None,
8472 });
8473 });
8474 }
8475 }
8476
8477 new_selections.sort_by_key(|selection| selection.start);
8478 let mut ix = 0;
8479 while ix + 1 < new_selections.len() {
8480 let current_selection = &new_selections[ix];
8481 let next_selection = &new_selections[ix + 1];
8482 if current_selection.range().overlaps(&next_selection.range()) {
8483 if current_selection.id < next_selection.id {
8484 new_selections.remove(ix + 1);
8485 } else {
8486 new_selections.remove(ix);
8487 }
8488 } else {
8489 ix += 1;
8490 }
8491 }
8492
8493 select_next_state.done = true;
8494 self.unfold_ranges(
8495 new_selections.iter().map(|selection| selection.range()),
8496 false,
8497 false,
8498 cx,
8499 );
8500 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8501 selections.select(new_selections)
8502 });
8503
8504 Ok(())
8505 }
8506
8507 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8508 self.push_to_selection_history();
8509 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8510 self.select_next_match_internal(
8511 &display_map,
8512 action.replace_newest,
8513 Some(Autoscroll::newest()),
8514 cx,
8515 )?;
8516 Ok(())
8517 }
8518
8519 pub fn select_previous(
8520 &mut self,
8521 action: &SelectPrevious,
8522 cx: &mut ViewContext<Self>,
8523 ) -> Result<()> {
8524 self.push_to_selection_history();
8525 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8526 let buffer = &display_map.buffer_snapshot;
8527 let mut selections = self.selections.all::<usize>(cx);
8528 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8529 let query = &select_prev_state.query;
8530 if !select_prev_state.done {
8531 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8532 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8533 let mut next_selected_range = None;
8534 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8535 let bytes_before_last_selection =
8536 buffer.reversed_bytes_in_range(0..last_selection.start);
8537 let bytes_after_first_selection =
8538 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8539 let query_matches = query
8540 .stream_find_iter(bytes_before_last_selection)
8541 .map(|result| (last_selection.start, result))
8542 .chain(
8543 query
8544 .stream_find_iter(bytes_after_first_selection)
8545 .map(|result| (buffer.len(), result)),
8546 );
8547 for (end_offset, query_match) in query_matches {
8548 let query_match = query_match.unwrap(); // can only fail due to I/O
8549 let offset_range =
8550 end_offset - query_match.end()..end_offset - query_match.start();
8551 let display_range = offset_range.start.to_display_point(&display_map)
8552 ..offset_range.end.to_display_point(&display_map);
8553
8554 if !select_prev_state.wordwise
8555 || (!movement::is_inside_word(&display_map, display_range.start)
8556 && !movement::is_inside_word(&display_map, display_range.end))
8557 {
8558 next_selected_range = Some(offset_range);
8559 break;
8560 }
8561 }
8562
8563 if let Some(next_selected_range) = next_selected_range {
8564 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8565 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8566 if action.replace_newest {
8567 s.delete(s.newest_anchor().id);
8568 }
8569 s.insert_range(next_selected_range);
8570 });
8571 } else {
8572 select_prev_state.done = true;
8573 }
8574 }
8575
8576 self.select_prev_state = Some(select_prev_state);
8577 } else {
8578 let mut only_carets = true;
8579 let mut same_text_selected = true;
8580 let mut selected_text = None;
8581
8582 let mut selections_iter = selections.iter().peekable();
8583 while let Some(selection) = selections_iter.next() {
8584 if selection.start != selection.end {
8585 only_carets = false;
8586 }
8587
8588 if same_text_selected {
8589 if selected_text.is_none() {
8590 selected_text =
8591 Some(buffer.text_for_range(selection.range()).collect::<String>());
8592 }
8593
8594 if let Some(next_selection) = selections_iter.peek() {
8595 if next_selection.range().len() == selection.range().len() {
8596 let next_selected_text = buffer
8597 .text_for_range(next_selection.range())
8598 .collect::<String>();
8599 if Some(next_selected_text) != selected_text {
8600 same_text_selected = false;
8601 selected_text = None;
8602 }
8603 } else {
8604 same_text_selected = false;
8605 selected_text = None;
8606 }
8607 }
8608 }
8609 }
8610
8611 if only_carets {
8612 for selection in &mut selections {
8613 let word_range = movement::surrounding_word(
8614 &display_map,
8615 selection.start.to_display_point(&display_map),
8616 );
8617 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8618 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8619 selection.goal = SelectionGoal::None;
8620 selection.reversed = false;
8621 }
8622 if selections.len() == 1 {
8623 let selection = selections
8624 .last()
8625 .expect("ensured that there's only one selection");
8626 let query = buffer
8627 .text_for_range(selection.start..selection.end)
8628 .collect::<String>();
8629 let is_empty = query.is_empty();
8630 let select_state = SelectNextState {
8631 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8632 wordwise: true,
8633 done: is_empty,
8634 };
8635 self.select_prev_state = Some(select_state);
8636 } else {
8637 self.select_prev_state = None;
8638 }
8639
8640 self.unfold_ranges(
8641 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8642 false,
8643 true,
8644 cx,
8645 );
8646 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8647 s.select(selections);
8648 });
8649 } else if let Some(selected_text) = selected_text {
8650 self.select_prev_state = Some(SelectNextState {
8651 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8652 wordwise: false,
8653 done: false,
8654 });
8655 self.select_previous(action, cx)?;
8656 }
8657 }
8658 Ok(())
8659 }
8660
8661 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8662 let text_layout_details = &self.text_layout_details(cx);
8663 self.transact(cx, |this, cx| {
8664 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8665 let mut edits = Vec::new();
8666 let mut selection_edit_ranges = Vec::new();
8667 let mut last_toggled_row = None;
8668 let snapshot = this.buffer.read(cx).read(cx);
8669 let empty_str: Arc<str> = Arc::default();
8670 let mut suffixes_inserted = Vec::new();
8671
8672 fn comment_prefix_range(
8673 snapshot: &MultiBufferSnapshot,
8674 row: MultiBufferRow,
8675 comment_prefix: &str,
8676 comment_prefix_whitespace: &str,
8677 ) -> Range<Point> {
8678 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8679
8680 let mut line_bytes = snapshot
8681 .bytes_in_range(start..snapshot.max_point())
8682 .flatten()
8683 .copied();
8684
8685 // If this line currently begins with the line comment prefix, then record
8686 // the range containing the prefix.
8687 if line_bytes
8688 .by_ref()
8689 .take(comment_prefix.len())
8690 .eq(comment_prefix.bytes())
8691 {
8692 // Include any whitespace that matches the comment prefix.
8693 let matching_whitespace_len = line_bytes
8694 .zip(comment_prefix_whitespace.bytes())
8695 .take_while(|(a, b)| a == b)
8696 .count() as u32;
8697 let end = Point::new(
8698 start.row,
8699 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8700 );
8701 start..end
8702 } else {
8703 start..start
8704 }
8705 }
8706
8707 fn comment_suffix_range(
8708 snapshot: &MultiBufferSnapshot,
8709 row: MultiBufferRow,
8710 comment_suffix: &str,
8711 comment_suffix_has_leading_space: bool,
8712 ) -> Range<Point> {
8713 let end = Point::new(row.0, snapshot.line_len(row));
8714 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8715
8716 let mut line_end_bytes = snapshot
8717 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8718 .flatten()
8719 .copied();
8720
8721 let leading_space_len = if suffix_start_column > 0
8722 && line_end_bytes.next() == Some(b' ')
8723 && comment_suffix_has_leading_space
8724 {
8725 1
8726 } else {
8727 0
8728 };
8729
8730 // If this line currently begins with the line comment prefix, then record
8731 // the range containing the prefix.
8732 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8733 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8734 start..end
8735 } else {
8736 end..end
8737 }
8738 }
8739
8740 // TODO: Handle selections that cross excerpts
8741 for selection in &mut selections {
8742 let start_column = snapshot
8743 .indent_size_for_line(MultiBufferRow(selection.start.row))
8744 .len;
8745 let language = if let Some(language) =
8746 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8747 {
8748 language
8749 } else {
8750 continue;
8751 };
8752
8753 selection_edit_ranges.clear();
8754
8755 // If multiple selections contain a given row, avoid processing that
8756 // row more than once.
8757 let mut start_row = MultiBufferRow(selection.start.row);
8758 if last_toggled_row == Some(start_row) {
8759 start_row = start_row.next_row();
8760 }
8761 let end_row =
8762 if selection.end.row > selection.start.row && selection.end.column == 0 {
8763 MultiBufferRow(selection.end.row - 1)
8764 } else {
8765 MultiBufferRow(selection.end.row)
8766 };
8767 last_toggled_row = Some(end_row);
8768
8769 if start_row > end_row {
8770 continue;
8771 }
8772
8773 // If the language has line comments, toggle those.
8774 let full_comment_prefixes = language.line_comment_prefixes();
8775 if !full_comment_prefixes.is_empty() {
8776 let first_prefix = full_comment_prefixes
8777 .first()
8778 .expect("prefixes is non-empty");
8779 let prefix_trimmed_lengths = full_comment_prefixes
8780 .iter()
8781 .map(|p| p.trim_end_matches(' ').len())
8782 .collect::<SmallVec<[usize; 4]>>();
8783
8784 let mut all_selection_lines_are_comments = true;
8785
8786 for row in start_row.0..=end_row.0 {
8787 let row = MultiBufferRow(row);
8788 if start_row < end_row && snapshot.is_line_blank(row) {
8789 continue;
8790 }
8791
8792 let prefix_range = full_comment_prefixes
8793 .iter()
8794 .zip(prefix_trimmed_lengths.iter().copied())
8795 .map(|(prefix, trimmed_prefix_len)| {
8796 comment_prefix_range(
8797 snapshot.deref(),
8798 row,
8799 &prefix[..trimmed_prefix_len],
8800 &prefix[trimmed_prefix_len..],
8801 )
8802 })
8803 .max_by_key(|range| range.end.column - range.start.column)
8804 .expect("prefixes is non-empty");
8805
8806 if prefix_range.is_empty() {
8807 all_selection_lines_are_comments = false;
8808 }
8809
8810 selection_edit_ranges.push(prefix_range);
8811 }
8812
8813 if all_selection_lines_are_comments {
8814 edits.extend(
8815 selection_edit_ranges
8816 .iter()
8817 .cloned()
8818 .map(|range| (range, empty_str.clone())),
8819 );
8820 } else {
8821 let min_column = selection_edit_ranges
8822 .iter()
8823 .map(|range| range.start.column)
8824 .min()
8825 .unwrap_or(0);
8826 edits.extend(selection_edit_ranges.iter().map(|range| {
8827 let position = Point::new(range.start.row, min_column);
8828 (position..position, first_prefix.clone())
8829 }));
8830 }
8831 } else if let Some((full_comment_prefix, comment_suffix)) =
8832 language.block_comment_delimiters()
8833 {
8834 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8835 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8836 let prefix_range = comment_prefix_range(
8837 snapshot.deref(),
8838 start_row,
8839 comment_prefix,
8840 comment_prefix_whitespace,
8841 );
8842 let suffix_range = comment_suffix_range(
8843 snapshot.deref(),
8844 end_row,
8845 comment_suffix.trim_start_matches(' '),
8846 comment_suffix.starts_with(' '),
8847 );
8848
8849 if prefix_range.is_empty() || suffix_range.is_empty() {
8850 edits.push((
8851 prefix_range.start..prefix_range.start,
8852 full_comment_prefix.clone(),
8853 ));
8854 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8855 suffixes_inserted.push((end_row, comment_suffix.len()));
8856 } else {
8857 edits.push((prefix_range, empty_str.clone()));
8858 edits.push((suffix_range, empty_str.clone()));
8859 }
8860 } else {
8861 continue;
8862 }
8863 }
8864
8865 drop(snapshot);
8866 this.buffer.update(cx, |buffer, cx| {
8867 buffer.edit(edits, None, cx);
8868 });
8869
8870 // Adjust selections so that they end before any comment suffixes that
8871 // were inserted.
8872 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8873 let mut selections = this.selections.all::<Point>(cx);
8874 let snapshot = this.buffer.read(cx).read(cx);
8875 for selection in &mut selections {
8876 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8877 match row.cmp(&MultiBufferRow(selection.end.row)) {
8878 Ordering::Less => {
8879 suffixes_inserted.next();
8880 continue;
8881 }
8882 Ordering::Greater => break,
8883 Ordering::Equal => {
8884 if selection.end.column == snapshot.line_len(row) {
8885 if selection.is_empty() {
8886 selection.start.column -= suffix_len as u32;
8887 }
8888 selection.end.column -= suffix_len as u32;
8889 }
8890 break;
8891 }
8892 }
8893 }
8894 }
8895
8896 drop(snapshot);
8897 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8898
8899 let selections = this.selections.all::<Point>(cx);
8900 let selections_on_single_row = selections.windows(2).all(|selections| {
8901 selections[0].start.row == selections[1].start.row
8902 && selections[0].end.row == selections[1].end.row
8903 && selections[0].start.row == selections[0].end.row
8904 });
8905 let selections_selecting = selections
8906 .iter()
8907 .any(|selection| selection.start != selection.end);
8908 let advance_downwards = action.advance_downwards
8909 && selections_on_single_row
8910 && !selections_selecting
8911 && !matches!(this.mode, EditorMode::SingleLine { .. });
8912
8913 if advance_downwards {
8914 let snapshot = this.buffer.read(cx).snapshot(cx);
8915
8916 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8917 s.move_cursors_with(|display_snapshot, display_point, _| {
8918 let mut point = display_point.to_point(display_snapshot);
8919 point.row += 1;
8920 point = snapshot.clip_point(point, Bias::Left);
8921 let display_point = point.to_display_point(display_snapshot);
8922 let goal = SelectionGoal::HorizontalPosition(
8923 display_snapshot
8924 .x_for_display_point(display_point, text_layout_details)
8925 .into(),
8926 );
8927 (display_point, goal)
8928 })
8929 });
8930 }
8931 });
8932 }
8933
8934 pub fn select_enclosing_symbol(
8935 &mut self,
8936 _: &SelectEnclosingSymbol,
8937 cx: &mut ViewContext<Self>,
8938 ) {
8939 let buffer = self.buffer.read(cx).snapshot(cx);
8940 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8941
8942 fn update_selection(
8943 selection: &Selection<usize>,
8944 buffer_snap: &MultiBufferSnapshot,
8945 ) -> Option<Selection<usize>> {
8946 let cursor = selection.head();
8947 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8948 for symbol in symbols.iter().rev() {
8949 let start = symbol.range.start.to_offset(buffer_snap);
8950 let end = symbol.range.end.to_offset(buffer_snap);
8951 let new_range = start..end;
8952 if start < selection.start || end > selection.end {
8953 return Some(Selection {
8954 id: selection.id,
8955 start: new_range.start,
8956 end: new_range.end,
8957 goal: SelectionGoal::None,
8958 reversed: selection.reversed,
8959 });
8960 }
8961 }
8962 None
8963 }
8964
8965 let mut selected_larger_symbol = false;
8966 let new_selections = old_selections
8967 .iter()
8968 .map(|selection| match update_selection(selection, &buffer) {
8969 Some(new_selection) => {
8970 if new_selection.range() != selection.range() {
8971 selected_larger_symbol = true;
8972 }
8973 new_selection
8974 }
8975 None => selection.clone(),
8976 })
8977 .collect::<Vec<_>>();
8978
8979 if selected_larger_symbol {
8980 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8981 s.select(new_selections);
8982 });
8983 }
8984 }
8985
8986 pub fn select_larger_syntax_node(
8987 &mut self,
8988 _: &SelectLargerSyntaxNode,
8989 cx: &mut ViewContext<Self>,
8990 ) {
8991 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8992 let buffer = self.buffer.read(cx).snapshot(cx);
8993 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8994
8995 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8996 let mut selected_larger_node = false;
8997 let new_selections = old_selections
8998 .iter()
8999 .map(|selection| {
9000 let old_range = selection.start..selection.end;
9001 let mut new_range = old_range.clone();
9002 while let Some(containing_range) =
9003 buffer.range_for_syntax_ancestor(new_range.clone())
9004 {
9005 new_range = containing_range;
9006 if !display_map.intersects_fold(new_range.start)
9007 && !display_map.intersects_fold(new_range.end)
9008 {
9009 break;
9010 }
9011 }
9012
9013 selected_larger_node |= new_range != old_range;
9014 Selection {
9015 id: selection.id,
9016 start: new_range.start,
9017 end: new_range.end,
9018 goal: SelectionGoal::None,
9019 reversed: selection.reversed,
9020 }
9021 })
9022 .collect::<Vec<_>>();
9023
9024 if selected_larger_node {
9025 stack.push(old_selections);
9026 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9027 s.select(new_selections);
9028 });
9029 }
9030 self.select_larger_syntax_node_stack = stack;
9031 }
9032
9033 pub fn select_smaller_syntax_node(
9034 &mut self,
9035 _: &SelectSmallerSyntaxNode,
9036 cx: &mut ViewContext<Self>,
9037 ) {
9038 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9039 if let Some(selections) = stack.pop() {
9040 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9041 s.select(selections.to_vec());
9042 });
9043 }
9044 self.select_larger_syntax_node_stack = stack;
9045 }
9046
9047 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9048 if !EditorSettings::get_global(cx).gutter.runnables {
9049 self.clear_tasks();
9050 return Task::ready(());
9051 }
9052 let project = self.project.clone();
9053 cx.spawn(|this, mut cx| async move {
9054 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9055 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9056 }) else {
9057 return;
9058 };
9059
9060 let Some(project) = project else {
9061 return;
9062 };
9063
9064 let hide_runnables = project
9065 .update(&mut cx, |project, cx| {
9066 // Do not display any test indicators in non-dev server remote projects.
9067 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9068 })
9069 .unwrap_or(true);
9070 if hide_runnables {
9071 return;
9072 }
9073 let new_rows =
9074 cx.background_executor()
9075 .spawn({
9076 let snapshot = display_snapshot.clone();
9077 async move {
9078 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9079 }
9080 })
9081 .await;
9082 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9083
9084 this.update(&mut cx, |this, _| {
9085 this.clear_tasks();
9086 for (key, value) in rows {
9087 this.insert_tasks(key, value);
9088 }
9089 })
9090 .ok();
9091 })
9092 }
9093 fn fetch_runnable_ranges(
9094 snapshot: &DisplaySnapshot,
9095 range: Range<Anchor>,
9096 ) -> Vec<language::RunnableRange> {
9097 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9098 }
9099
9100 fn runnable_rows(
9101 project: Model<Project>,
9102 snapshot: DisplaySnapshot,
9103 runnable_ranges: Vec<RunnableRange>,
9104 mut cx: AsyncWindowContext,
9105 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9106 runnable_ranges
9107 .into_iter()
9108 .filter_map(|mut runnable| {
9109 let tasks = cx
9110 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9111 .ok()?;
9112 if tasks.is_empty() {
9113 return None;
9114 }
9115
9116 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9117
9118 let row = snapshot
9119 .buffer_snapshot
9120 .buffer_line_for_row(MultiBufferRow(point.row))?
9121 .1
9122 .start
9123 .row;
9124
9125 let context_range =
9126 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9127 Some((
9128 (runnable.buffer_id, row),
9129 RunnableTasks {
9130 templates: tasks,
9131 offset: MultiBufferOffset(runnable.run_range.start),
9132 context_range,
9133 column: point.column,
9134 extra_variables: runnable.extra_captures,
9135 },
9136 ))
9137 })
9138 .collect()
9139 }
9140
9141 fn templates_with_tags(
9142 project: &Model<Project>,
9143 runnable: &mut Runnable,
9144 cx: &WindowContext<'_>,
9145 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9146 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9147 let (worktree_id, file) = project
9148 .buffer_for_id(runnable.buffer, cx)
9149 .and_then(|buffer| buffer.read(cx).file())
9150 .map(|file| (file.worktree_id(cx), file.clone()))
9151 .unzip();
9152
9153 (
9154 project.task_store().read(cx).task_inventory().cloned(),
9155 worktree_id,
9156 file,
9157 )
9158 });
9159
9160 let tags = mem::take(&mut runnable.tags);
9161 let mut tags: Vec<_> = tags
9162 .into_iter()
9163 .flat_map(|tag| {
9164 let tag = tag.0.clone();
9165 inventory
9166 .as_ref()
9167 .into_iter()
9168 .flat_map(|inventory| {
9169 inventory.read(cx).list_tasks(
9170 file.clone(),
9171 Some(runnable.language.clone()),
9172 worktree_id,
9173 cx,
9174 )
9175 })
9176 .filter(move |(_, template)| {
9177 template.tags.iter().any(|source_tag| source_tag == &tag)
9178 })
9179 })
9180 .sorted_by_key(|(kind, _)| kind.to_owned())
9181 .collect();
9182 if let Some((leading_tag_source, _)) = tags.first() {
9183 // Strongest source wins; if we have worktree tag binding, prefer that to
9184 // global and language bindings;
9185 // if we have a global binding, prefer that to language binding.
9186 let first_mismatch = tags
9187 .iter()
9188 .position(|(tag_source, _)| tag_source != leading_tag_source);
9189 if let Some(index) = first_mismatch {
9190 tags.truncate(index);
9191 }
9192 }
9193
9194 tags
9195 }
9196
9197 pub fn move_to_enclosing_bracket(
9198 &mut self,
9199 _: &MoveToEnclosingBracket,
9200 cx: &mut ViewContext<Self>,
9201 ) {
9202 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9203 s.move_offsets_with(|snapshot, selection| {
9204 let Some(enclosing_bracket_ranges) =
9205 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9206 else {
9207 return;
9208 };
9209
9210 let mut best_length = usize::MAX;
9211 let mut best_inside = false;
9212 let mut best_in_bracket_range = false;
9213 let mut best_destination = None;
9214 for (open, close) in enclosing_bracket_ranges {
9215 let close = close.to_inclusive();
9216 let length = close.end() - open.start;
9217 let inside = selection.start >= open.end && selection.end <= *close.start();
9218 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9219 || close.contains(&selection.head());
9220
9221 // If best is next to a bracket and current isn't, skip
9222 if !in_bracket_range && best_in_bracket_range {
9223 continue;
9224 }
9225
9226 // Prefer smaller lengths unless best is inside and current isn't
9227 if length > best_length && (best_inside || !inside) {
9228 continue;
9229 }
9230
9231 best_length = length;
9232 best_inside = inside;
9233 best_in_bracket_range = in_bracket_range;
9234 best_destination = Some(
9235 if close.contains(&selection.start) && close.contains(&selection.end) {
9236 if inside {
9237 open.end
9238 } else {
9239 open.start
9240 }
9241 } else if inside {
9242 *close.start()
9243 } else {
9244 *close.end()
9245 },
9246 );
9247 }
9248
9249 if let Some(destination) = best_destination {
9250 selection.collapse_to(destination, SelectionGoal::None);
9251 }
9252 })
9253 });
9254 }
9255
9256 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9257 self.end_selection(cx);
9258 self.selection_history.mode = SelectionHistoryMode::Undoing;
9259 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9260 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9261 self.select_next_state = entry.select_next_state;
9262 self.select_prev_state = entry.select_prev_state;
9263 self.add_selections_state = entry.add_selections_state;
9264 self.request_autoscroll(Autoscroll::newest(), cx);
9265 }
9266 self.selection_history.mode = SelectionHistoryMode::Normal;
9267 }
9268
9269 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9270 self.end_selection(cx);
9271 self.selection_history.mode = SelectionHistoryMode::Redoing;
9272 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9273 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9274 self.select_next_state = entry.select_next_state;
9275 self.select_prev_state = entry.select_prev_state;
9276 self.add_selections_state = entry.add_selections_state;
9277 self.request_autoscroll(Autoscroll::newest(), cx);
9278 }
9279 self.selection_history.mode = SelectionHistoryMode::Normal;
9280 }
9281
9282 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9283 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9284 }
9285
9286 pub fn expand_excerpts_down(
9287 &mut self,
9288 action: &ExpandExcerptsDown,
9289 cx: &mut ViewContext<Self>,
9290 ) {
9291 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9292 }
9293
9294 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9295 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9296 }
9297
9298 pub fn expand_excerpts_for_direction(
9299 &mut self,
9300 lines: u32,
9301 direction: ExpandExcerptDirection,
9302 cx: &mut ViewContext<Self>,
9303 ) {
9304 let selections = self.selections.disjoint_anchors();
9305
9306 let lines = if lines == 0 {
9307 EditorSettings::get_global(cx).expand_excerpt_lines
9308 } else {
9309 lines
9310 };
9311
9312 self.buffer.update(cx, |buffer, cx| {
9313 buffer.expand_excerpts(
9314 selections
9315 .iter()
9316 .map(|selection| selection.head().excerpt_id)
9317 .dedup(),
9318 lines,
9319 direction,
9320 cx,
9321 )
9322 })
9323 }
9324
9325 pub fn expand_excerpt(
9326 &mut self,
9327 excerpt: ExcerptId,
9328 direction: ExpandExcerptDirection,
9329 cx: &mut ViewContext<Self>,
9330 ) {
9331 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9332 self.buffer.update(cx, |buffer, cx| {
9333 buffer.expand_excerpts([excerpt], lines, direction, cx)
9334 })
9335 }
9336
9337 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9338 self.go_to_diagnostic_impl(Direction::Next, cx)
9339 }
9340
9341 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9342 self.go_to_diagnostic_impl(Direction::Prev, cx)
9343 }
9344
9345 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9346 let buffer = self.buffer.read(cx).snapshot(cx);
9347 let selection = self.selections.newest::<usize>(cx);
9348
9349 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9350 if direction == Direction::Next {
9351 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9352 let (group_id, jump_to) = popover.activation_info();
9353 if self.activate_diagnostics(group_id, cx) {
9354 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9355 let mut new_selection = s.newest_anchor().clone();
9356 new_selection.collapse_to(jump_to, SelectionGoal::None);
9357 s.select_anchors(vec![new_selection.clone()]);
9358 });
9359 }
9360 return;
9361 }
9362 }
9363
9364 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9365 active_diagnostics
9366 .primary_range
9367 .to_offset(&buffer)
9368 .to_inclusive()
9369 });
9370 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9371 if active_primary_range.contains(&selection.head()) {
9372 *active_primary_range.start()
9373 } else {
9374 selection.head()
9375 }
9376 } else {
9377 selection.head()
9378 };
9379 let snapshot = self.snapshot(cx);
9380 loop {
9381 let diagnostics = if direction == Direction::Prev {
9382 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9383 } else {
9384 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9385 }
9386 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9387 let group = diagnostics
9388 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9389 // be sorted in a stable way
9390 // skip until we are at current active diagnostic, if it exists
9391 .skip_while(|entry| {
9392 (match direction {
9393 Direction::Prev => entry.range.start >= search_start,
9394 Direction::Next => entry.range.start <= search_start,
9395 }) && self
9396 .active_diagnostics
9397 .as_ref()
9398 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9399 })
9400 .find_map(|entry| {
9401 if entry.diagnostic.is_primary
9402 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9403 && !entry.range.is_empty()
9404 // if we match with the active diagnostic, skip it
9405 && Some(entry.diagnostic.group_id)
9406 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9407 {
9408 Some((entry.range, entry.diagnostic.group_id))
9409 } else {
9410 None
9411 }
9412 });
9413
9414 if let Some((primary_range, group_id)) = group {
9415 if self.activate_diagnostics(group_id, cx) {
9416 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9417 s.select(vec![Selection {
9418 id: selection.id,
9419 start: primary_range.start,
9420 end: primary_range.start,
9421 reversed: false,
9422 goal: SelectionGoal::None,
9423 }]);
9424 });
9425 }
9426 break;
9427 } else {
9428 // Cycle around to the start of the buffer, potentially moving back to the start of
9429 // the currently active diagnostic.
9430 active_primary_range.take();
9431 if direction == Direction::Prev {
9432 if search_start == buffer.len() {
9433 break;
9434 } else {
9435 search_start = buffer.len();
9436 }
9437 } else if search_start == 0 {
9438 break;
9439 } else {
9440 search_start = 0;
9441 }
9442 }
9443 }
9444 }
9445
9446 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9447 let snapshot = self
9448 .display_map
9449 .update(cx, |display_map, cx| display_map.snapshot(cx));
9450 let selection = self.selections.newest::<Point>(cx);
9451 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9452 }
9453
9454 fn go_to_hunk_after_position(
9455 &mut self,
9456 snapshot: &DisplaySnapshot,
9457 position: Point,
9458 cx: &mut ViewContext<'_, Editor>,
9459 ) -> Option<MultiBufferDiffHunk> {
9460 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9461 snapshot,
9462 position,
9463 false,
9464 snapshot
9465 .buffer_snapshot
9466 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9467 cx,
9468 ) {
9469 return Some(hunk);
9470 }
9471
9472 let wrapped_point = Point::zero();
9473 self.go_to_next_hunk_in_direction(
9474 snapshot,
9475 wrapped_point,
9476 true,
9477 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9478 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9479 ),
9480 cx,
9481 )
9482 }
9483
9484 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9485 let snapshot = self
9486 .display_map
9487 .update(cx, |display_map, cx| display_map.snapshot(cx));
9488 let selection = self.selections.newest::<Point>(cx);
9489
9490 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9491 }
9492
9493 fn go_to_hunk_before_position(
9494 &mut self,
9495 snapshot: &DisplaySnapshot,
9496 position: Point,
9497 cx: &mut ViewContext<'_, Editor>,
9498 ) -> Option<MultiBufferDiffHunk> {
9499 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9500 snapshot,
9501 position,
9502 false,
9503 snapshot
9504 .buffer_snapshot
9505 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9506 cx,
9507 ) {
9508 return Some(hunk);
9509 }
9510
9511 let wrapped_point = snapshot.buffer_snapshot.max_point();
9512 self.go_to_next_hunk_in_direction(
9513 snapshot,
9514 wrapped_point,
9515 true,
9516 snapshot
9517 .buffer_snapshot
9518 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9519 cx,
9520 )
9521 }
9522
9523 fn go_to_next_hunk_in_direction(
9524 &mut self,
9525 snapshot: &DisplaySnapshot,
9526 initial_point: Point,
9527 is_wrapped: bool,
9528 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9529 cx: &mut ViewContext<Editor>,
9530 ) -> Option<MultiBufferDiffHunk> {
9531 let display_point = initial_point.to_display_point(snapshot);
9532 let mut hunks = hunks
9533 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9534 .filter(|(display_hunk, _)| {
9535 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9536 })
9537 .dedup();
9538
9539 if let Some((display_hunk, hunk)) = hunks.next() {
9540 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9541 let row = display_hunk.start_display_row();
9542 let point = DisplayPoint::new(row, 0);
9543 s.select_display_ranges([point..point]);
9544 });
9545
9546 Some(hunk)
9547 } else {
9548 None
9549 }
9550 }
9551
9552 pub fn go_to_definition(
9553 &mut self,
9554 _: &GoToDefinition,
9555 cx: &mut ViewContext<Self>,
9556 ) -> Task<Result<Navigated>> {
9557 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9558 cx.spawn(|editor, mut cx| async move {
9559 if definition.await? == Navigated::Yes {
9560 return Ok(Navigated::Yes);
9561 }
9562 match editor.update(&mut cx, |editor, cx| {
9563 editor.find_all_references(&FindAllReferences, cx)
9564 })? {
9565 Some(references) => references.await,
9566 None => Ok(Navigated::No),
9567 }
9568 })
9569 }
9570
9571 pub fn go_to_declaration(
9572 &mut self,
9573 _: &GoToDeclaration,
9574 cx: &mut ViewContext<Self>,
9575 ) -> Task<Result<Navigated>> {
9576 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9577 }
9578
9579 pub fn go_to_declaration_split(
9580 &mut self,
9581 _: &GoToDeclaration,
9582 cx: &mut ViewContext<Self>,
9583 ) -> Task<Result<Navigated>> {
9584 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9585 }
9586
9587 pub fn go_to_implementation(
9588 &mut self,
9589 _: &GoToImplementation,
9590 cx: &mut ViewContext<Self>,
9591 ) -> Task<Result<Navigated>> {
9592 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9593 }
9594
9595 pub fn go_to_implementation_split(
9596 &mut self,
9597 _: &GoToImplementationSplit,
9598 cx: &mut ViewContext<Self>,
9599 ) -> Task<Result<Navigated>> {
9600 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9601 }
9602
9603 pub fn go_to_type_definition(
9604 &mut self,
9605 _: &GoToTypeDefinition,
9606 cx: &mut ViewContext<Self>,
9607 ) -> Task<Result<Navigated>> {
9608 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9609 }
9610
9611 pub fn go_to_definition_split(
9612 &mut self,
9613 _: &GoToDefinitionSplit,
9614 cx: &mut ViewContext<Self>,
9615 ) -> Task<Result<Navigated>> {
9616 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9617 }
9618
9619 pub fn go_to_type_definition_split(
9620 &mut self,
9621 _: &GoToTypeDefinitionSplit,
9622 cx: &mut ViewContext<Self>,
9623 ) -> Task<Result<Navigated>> {
9624 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9625 }
9626
9627 fn go_to_definition_of_kind(
9628 &mut self,
9629 kind: GotoDefinitionKind,
9630 split: bool,
9631 cx: &mut ViewContext<Self>,
9632 ) -> Task<Result<Navigated>> {
9633 let Some(provider) = self.semantics_provider.clone() else {
9634 return Task::ready(Ok(Navigated::No));
9635 };
9636 let buffer = self.buffer.read(cx);
9637 let head = self.selections.newest::<usize>(cx).head();
9638 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9639 text_anchor
9640 } else {
9641 return Task::ready(Ok(Navigated::No));
9642 };
9643
9644 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9645 return Task::ready(Ok(Navigated::No));
9646 };
9647
9648 cx.spawn(|editor, mut cx| async move {
9649 let definitions = definitions.await?;
9650 let navigated = editor
9651 .update(&mut cx, |editor, cx| {
9652 editor.navigate_to_hover_links(
9653 Some(kind),
9654 definitions
9655 .into_iter()
9656 .filter(|location| {
9657 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9658 })
9659 .map(HoverLink::Text)
9660 .collect::<Vec<_>>(),
9661 split,
9662 cx,
9663 )
9664 })?
9665 .await?;
9666 anyhow::Ok(navigated)
9667 })
9668 }
9669
9670 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9671 let position = self.selections.newest_anchor().head();
9672 let Some((buffer, buffer_position)) =
9673 self.buffer.read(cx).text_anchor_for_position(position, cx)
9674 else {
9675 return;
9676 };
9677
9678 cx.spawn(|editor, mut cx| async move {
9679 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9680 editor.update(&mut cx, |_, cx| {
9681 cx.open_url(&url);
9682 })
9683 } else {
9684 Ok(())
9685 }
9686 })
9687 .detach();
9688 }
9689
9690 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9691 let Some(workspace) = self.workspace() else {
9692 return;
9693 };
9694
9695 let position = self.selections.newest_anchor().head();
9696
9697 let Some((buffer, buffer_position)) =
9698 self.buffer.read(cx).text_anchor_for_position(position, cx)
9699 else {
9700 return;
9701 };
9702
9703 let project = self.project.clone();
9704
9705 cx.spawn(|_, mut cx| async move {
9706 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9707
9708 if let Some((_, path)) = result {
9709 workspace
9710 .update(&mut cx, |workspace, cx| {
9711 workspace.open_resolved_path(path, cx)
9712 })?
9713 .await?;
9714 }
9715 anyhow::Ok(())
9716 })
9717 .detach();
9718 }
9719
9720 pub(crate) fn navigate_to_hover_links(
9721 &mut self,
9722 kind: Option<GotoDefinitionKind>,
9723 mut definitions: Vec<HoverLink>,
9724 split: bool,
9725 cx: &mut ViewContext<Editor>,
9726 ) -> Task<Result<Navigated>> {
9727 // If there is one definition, just open it directly
9728 if definitions.len() == 1 {
9729 let definition = definitions.pop().unwrap();
9730
9731 enum TargetTaskResult {
9732 Location(Option<Location>),
9733 AlreadyNavigated,
9734 }
9735
9736 let target_task = match definition {
9737 HoverLink::Text(link) => {
9738 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9739 }
9740 HoverLink::InlayHint(lsp_location, server_id) => {
9741 let computation = self.compute_target_location(lsp_location, server_id, cx);
9742 cx.background_executor().spawn(async move {
9743 let location = computation.await?;
9744 Ok(TargetTaskResult::Location(location))
9745 })
9746 }
9747 HoverLink::Url(url) => {
9748 cx.open_url(&url);
9749 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9750 }
9751 HoverLink::File(path) => {
9752 if let Some(workspace) = self.workspace() {
9753 cx.spawn(|_, mut cx| async move {
9754 workspace
9755 .update(&mut cx, |workspace, cx| {
9756 workspace.open_resolved_path(path, cx)
9757 })?
9758 .await
9759 .map(|_| TargetTaskResult::AlreadyNavigated)
9760 })
9761 } else {
9762 Task::ready(Ok(TargetTaskResult::Location(None)))
9763 }
9764 }
9765 };
9766 cx.spawn(|editor, mut cx| async move {
9767 let target = match target_task.await.context("target resolution task")? {
9768 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9769 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9770 TargetTaskResult::Location(Some(target)) => target,
9771 };
9772
9773 editor.update(&mut cx, |editor, cx| {
9774 let Some(workspace) = editor.workspace() else {
9775 return Navigated::No;
9776 };
9777 let pane = workspace.read(cx).active_pane().clone();
9778
9779 let range = target.range.to_offset(target.buffer.read(cx));
9780 let range = editor.range_for_match(&range);
9781
9782 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9783 let buffer = target.buffer.read(cx);
9784 let range = check_multiline_range(buffer, range);
9785 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9786 s.select_ranges([range]);
9787 });
9788 } else {
9789 cx.window_context().defer(move |cx| {
9790 let target_editor: View<Self> =
9791 workspace.update(cx, |workspace, cx| {
9792 let pane = if split {
9793 workspace.adjacent_pane(cx)
9794 } else {
9795 workspace.active_pane().clone()
9796 };
9797
9798 workspace.open_project_item(
9799 pane,
9800 target.buffer.clone(),
9801 true,
9802 true,
9803 cx,
9804 )
9805 });
9806 target_editor.update(cx, |target_editor, cx| {
9807 // When selecting a definition in a different buffer, disable the nav history
9808 // to avoid creating a history entry at the previous cursor location.
9809 pane.update(cx, |pane, _| pane.disable_history());
9810 let buffer = target.buffer.read(cx);
9811 let range = check_multiline_range(buffer, range);
9812 target_editor.change_selections(
9813 Some(Autoscroll::focused()),
9814 cx,
9815 |s| {
9816 s.select_ranges([range]);
9817 },
9818 );
9819 pane.update(cx, |pane, _| pane.enable_history());
9820 });
9821 });
9822 }
9823 Navigated::Yes
9824 })
9825 })
9826 } else if !definitions.is_empty() {
9827 cx.spawn(|editor, mut cx| async move {
9828 let (title, location_tasks, workspace) = editor
9829 .update(&mut cx, |editor, cx| {
9830 let tab_kind = match kind {
9831 Some(GotoDefinitionKind::Implementation) => "Implementations",
9832 _ => "Definitions",
9833 };
9834 let title = definitions
9835 .iter()
9836 .find_map(|definition| match definition {
9837 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9838 let buffer = origin.buffer.read(cx);
9839 format!(
9840 "{} for {}",
9841 tab_kind,
9842 buffer
9843 .text_for_range(origin.range.clone())
9844 .collect::<String>()
9845 )
9846 }),
9847 HoverLink::InlayHint(_, _) => None,
9848 HoverLink::Url(_) => None,
9849 HoverLink::File(_) => None,
9850 })
9851 .unwrap_or(tab_kind.to_string());
9852 let location_tasks = definitions
9853 .into_iter()
9854 .map(|definition| match definition {
9855 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9856 HoverLink::InlayHint(lsp_location, server_id) => {
9857 editor.compute_target_location(lsp_location, server_id, cx)
9858 }
9859 HoverLink::Url(_) => Task::ready(Ok(None)),
9860 HoverLink::File(_) => Task::ready(Ok(None)),
9861 })
9862 .collect::<Vec<_>>();
9863 (title, location_tasks, editor.workspace().clone())
9864 })
9865 .context("location tasks preparation")?;
9866
9867 let locations = future::join_all(location_tasks)
9868 .await
9869 .into_iter()
9870 .filter_map(|location| location.transpose())
9871 .collect::<Result<_>>()
9872 .context("location tasks")?;
9873
9874 let Some(workspace) = workspace else {
9875 return Ok(Navigated::No);
9876 };
9877 let opened = workspace
9878 .update(&mut cx, |workspace, cx| {
9879 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9880 })
9881 .ok();
9882
9883 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9884 })
9885 } else {
9886 Task::ready(Ok(Navigated::No))
9887 }
9888 }
9889
9890 fn compute_target_location(
9891 &self,
9892 lsp_location: lsp::Location,
9893 server_id: LanguageServerId,
9894 cx: &mut ViewContext<Self>,
9895 ) -> Task<anyhow::Result<Option<Location>>> {
9896 let Some(project) = self.project.clone() else {
9897 return Task::Ready(Some(Ok(None)));
9898 };
9899
9900 cx.spawn(move |editor, mut cx| async move {
9901 let location_task = editor.update(&mut cx, |_, cx| {
9902 project.update(cx, |project, cx| {
9903 let language_server_name = project
9904 .language_server_statuses(cx)
9905 .find(|(id, _)| server_id == *id)
9906 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9907 language_server_name.map(|language_server_name| {
9908 project.open_local_buffer_via_lsp(
9909 lsp_location.uri.clone(),
9910 server_id,
9911 language_server_name,
9912 cx,
9913 )
9914 })
9915 })
9916 })?;
9917 let location = match location_task {
9918 Some(task) => Some({
9919 let target_buffer_handle = task.await.context("open local buffer")?;
9920 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9921 let target_start = target_buffer
9922 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9923 let target_end = target_buffer
9924 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9925 target_buffer.anchor_after(target_start)
9926 ..target_buffer.anchor_before(target_end)
9927 })?;
9928 Location {
9929 buffer: target_buffer_handle,
9930 range,
9931 }
9932 }),
9933 None => None,
9934 };
9935 Ok(location)
9936 })
9937 }
9938
9939 pub fn find_all_references(
9940 &mut self,
9941 _: &FindAllReferences,
9942 cx: &mut ViewContext<Self>,
9943 ) -> Option<Task<Result<Navigated>>> {
9944 let multi_buffer = self.buffer.read(cx);
9945 let selection = self.selections.newest::<usize>(cx);
9946 let head = selection.head();
9947
9948 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9949 let head_anchor = multi_buffer_snapshot.anchor_at(
9950 head,
9951 if head < selection.tail() {
9952 Bias::Right
9953 } else {
9954 Bias::Left
9955 },
9956 );
9957
9958 match self
9959 .find_all_references_task_sources
9960 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9961 {
9962 Ok(_) => {
9963 log::info!(
9964 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9965 );
9966 return None;
9967 }
9968 Err(i) => {
9969 self.find_all_references_task_sources.insert(i, head_anchor);
9970 }
9971 }
9972
9973 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9974 let workspace = self.workspace()?;
9975 let project = workspace.read(cx).project().clone();
9976 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9977 Some(cx.spawn(|editor, mut cx| async move {
9978 let _cleanup = defer({
9979 let mut cx = cx.clone();
9980 move || {
9981 let _ = editor.update(&mut cx, |editor, _| {
9982 if let Ok(i) =
9983 editor
9984 .find_all_references_task_sources
9985 .binary_search_by(|anchor| {
9986 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9987 })
9988 {
9989 editor.find_all_references_task_sources.remove(i);
9990 }
9991 });
9992 }
9993 });
9994
9995 let locations = references.await?;
9996 if locations.is_empty() {
9997 return anyhow::Ok(Navigated::No);
9998 }
9999
10000 workspace.update(&mut cx, |workspace, cx| {
10001 let title = locations
10002 .first()
10003 .as_ref()
10004 .map(|location| {
10005 let buffer = location.buffer.read(cx);
10006 format!(
10007 "References to `{}`",
10008 buffer
10009 .text_for_range(location.range.clone())
10010 .collect::<String>()
10011 )
10012 })
10013 .unwrap();
10014 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10015 Navigated::Yes
10016 })
10017 }))
10018 }
10019
10020 /// Opens a multibuffer with the given project locations in it
10021 pub fn open_locations_in_multibuffer(
10022 workspace: &mut Workspace,
10023 mut locations: Vec<Location>,
10024 title: String,
10025 split: bool,
10026 cx: &mut ViewContext<Workspace>,
10027 ) {
10028 // If there are multiple definitions, open them in a multibuffer
10029 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10030 let mut locations = locations.into_iter().peekable();
10031 let mut ranges_to_highlight = Vec::new();
10032 let capability = workspace.project().read(cx).capability();
10033
10034 let excerpt_buffer = cx.new_model(|cx| {
10035 let mut multibuffer = MultiBuffer::new(capability);
10036 while let Some(location) = locations.next() {
10037 let buffer = location.buffer.read(cx);
10038 let mut ranges_for_buffer = Vec::new();
10039 let range = location.range.to_offset(buffer);
10040 ranges_for_buffer.push(range.clone());
10041
10042 while let Some(next_location) = locations.peek() {
10043 if next_location.buffer == location.buffer {
10044 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10045 locations.next();
10046 } else {
10047 break;
10048 }
10049 }
10050
10051 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10052 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10053 location.buffer.clone(),
10054 ranges_for_buffer,
10055 DEFAULT_MULTIBUFFER_CONTEXT,
10056 cx,
10057 ))
10058 }
10059
10060 multibuffer.with_title(title)
10061 });
10062
10063 let editor = cx.new_view(|cx| {
10064 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10065 });
10066 editor.update(cx, |editor, cx| {
10067 if let Some(first_range) = ranges_to_highlight.first() {
10068 editor.change_selections(None, cx, |selections| {
10069 selections.clear_disjoint();
10070 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10071 });
10072 }
10073 editor.highlight_background::<Self>(
10074 &ranges_to_highlight,
10075 |theme| theme.editor_highlighted_line_background,
10076 cx,
10077 );
10078 });
10079
10080 let item = Box::new(editor);
10081 let item_id = item.item_id();
10082
10083 if split {
10084 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10085 } else {
10086 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10087 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10088 pane.close_current_preview_item(cx)
10089 } else {
10090 None
10091 }
10092 });
10093 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10094 }
10095 workspace.active_pane().update(cx, |pane, cx| {
10096 pane.set_preview_item_id(Some(item_id), cx);
10097 });
10098 }
10099
10100 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10101 use language::ToOffset as _;
10102
10103 let provider = self.semantics_provider.clone()?;
10104 let selection = self.selections.newest_anchor().clone();
10105 let (cursor_buffer, cursor_buffer_position) = self
10106 .buffer
10107 .read(cx)
10108 .text_anchor_for_position(selection.head(), cx)?;
10109 let (tail_buffer, cursor_buffer_position_end) = self
10110 .buffer
10111 .read(cx)
10112 .text_anchor_for_position(selection.tail(), cx)?;
10113 if tail_buffer != cursor_buffer {
10114 return None;
10115 }
10116
10117 let snapshot = cursor_buffer.read(cx).snapshot();
10118 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10119 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10120 let prepare_rename = provider
10121 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10122 .unwrap_or_else(|| Task::ready(Ok(None)));
10123 drop(snapshot);
10124
10125 Some(cx.spawn(|this, mut cx| async move {
10126 let rename_range = if let Some(range) = prepare_rename.await? {
10127 Some(range)
10128 } else {
10129 this.update(&mut cx, |this, cx| {
10130 let buffer = this.buffer.read(cx).snapshot(cx);
10131 let mut buffer_highlights = this
10132 .document_highlights_for_position(selection.head(), &buffer)
10133 .filter(|highlight| {
10134 highlight.start.excerpt_id == selection.head().excerpt_id
10135 && highlight.end.excerpt_id == selection.head().excerpt_id
10136 });
10137 buffer_highlights
10138 .next()
10139 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10140 })?
10141 };
10142 if let Some(rename_range) = rename_range {
10143 this.update(&mut cx, |this, cx| {
10144 let snapshot = cursor_buffer.read(cx).snapshot();
10145 let rename_buffer_range = rename_range.to_offset(&snapshot);
10146 let cursor_offset_in_rename_range =
10147 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10148 let cursor_offset_in_rename_range_end =
10149 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10150
10151 this.take_rename(false, cx);
10152 let buffer = this.buffer.read(cx).read(cx);
10153 let cursor_offset = selection.head().to_offset(&buffer);
10154 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10155 let rename_end = rename_start + rename_buffer_range.len();
10156 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10157 let mut old_highlight_id = None;
10158 let old_name: Arc<str> = buffer
10159 .chunks(rename_start..rename_end, true)
10160 .map(|chunk| {
10161 if old_highlight_id.is_none() {
10162 old_highlight_id = chunk.syntax_highlight_id;
10163 }
10164 chunk.text
10165 })
10166 .collect::<String>()
10167 .into();
10168
10169 drop(buffer);
10170
10171 // Position the selection in the rename editor so that it matches the current selection.
10172 this.show_local_selections = false;
10173 let rename_editor = cx.new_view(|cx| {
10174 let mut editor = Editor::single_line(cx);
10175 editor.buffer.update(cx, |buffer, cx| {
10176 buffer.edit([(0..0, old_name.clone())], None, cx)
10177 });
10178 let rename_selection_range = match cursor_offset_in_rename_range
10179 .cmp(&cursor_offset_in_rename_range_end)
10180 {
10181 Ordering::Equal => {
10182 editor.select_all(&SelectAll, cx);
10183 return editor;
10184 }
10185 Ordering::Less => {
10186 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10187 }
10188 Ordering::Greater => {
10189 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10190 }
10191 };
10192 if rename_selection_range.end > old_name.len() {
10193 editor.select_all(&SelectAll, cx);
10194 } else {
10195 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10196 s.select_ranges([rename_selection_range]);
10197 });
10198 }
10199 editor
10200 });
10201 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10202 if e == &EditorEvent::Focused {
10203 cx.emit(EditorEvent::FocusedIn)
10204 }
10205 })
10206 .detach();
10207
10208 let write_highlights =
10209 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10210 let read_highlights =
10211 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10212 let ranges = write_highlights
10213 .iter()
10214 .flat_map(|(_, ranges)| ranges.iter())
10215 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10216 .cloned()
10217 .collect();
10218
10219 this.highlight_text::<Rename>(
10220 ranges,
10221 HighlightStyle {
10222 fade_out: Some(0.6),
10223 ..Default::default()
10224 },
10225 cx,
10226 );
10227 let rename_focus_handle = rename_editor.focus_handle(cx);
10228 cx.focus(&rename_focus_handle);
10229 let block_id = this.insert_blocks(
10230 [BlockProperties {
10231 style: BlockStyle::Flex,
10232 placement: BlockPlacement::Below(range.start),
10233 height: 1,
10234 render: Box::new({
10235 let rename_editor = rename_editor.clone();
10236 move |cx: &mut BlockContext| {
10237 let mut text_style = cx.editor_style.text.clone();
10238 if let Some(highlight_style) = old_highlight_id
10239 .and_then(|h| h.style(&cx.editor_style.syntax))
10240 {
10241 text_style = text_style.highlight(highlight_style);
10242 }
10243 div()
10244 .pl(cx.anchor_x)
10245 .child(EditorElement::new(
10246 &rename_editor,
10247 EditorStyle {
10248 background: cx.theme().system().transparent,
10249 local_player: cx.editor_style.local_player,
10250 text: text_style,
10251 scrollbar_width: cx.editor_style.scrollbar_width,
10252 syntax: cx.editor_style.syntax.clone(),
10253 status: cx.editor_style.status.clone(),
10254 inlay_hints_style: HighlightStyle {
10255 font_weight: Some(FontWeight::BOLD),
10256 ..make_inlay_hints_style(cx)
10257 },
10258 suggestions_style: HighlightStyle {
10259 color: Some(cx.theme().status().predictive),
10260 ..HighlightStyle::default()
10261 },
10262 ..EditorStyle::default()
10263 },
10264 ))
10265 .into_any_element()
10266 }
10267 }),
10268 priority: 0,
10269 }],
10270 Some(Autoscroll::fit()),
10271 cx,
10272 )[0];
10273 this.pending_rename = Some(RenameState {
10274 range,
10275 old_name,
10276 editor: rename_editor,
10277 block_id,
10278 });
10279 })?;
10280 }
10281
10282 Ok(())
10283 }))
10284 }
10285
10286 pub fn confirm_rename(
10287 &mut self,
10288 _: &ConfirmRename,
10289 cx: &mut ViewContext<Self>,
10290 ) -> Option<Task<Result<()>>> {
10291 let rename = self.take_rename(false, cx)?;
10292 let workspace = self.workspace()?.downgrade();
10293 let (buffer, start) = self
10294 .buffer
10295 .read(cx)
10296 .text_anchor_for_position(rename.range.start, cx)?;
10297 let (end_buffer, _) = self
10298 .buffer
10299 .read(cx)
10300 .text_anchor_for_position(rename.range.end, cx)?;
10301 if buffer != end_buffer {
10302 return None;
10303 }
10304
10305 let old_name = rename.old_name;
10306 let new_name = rename.editor.read(cx).text(cx);
10307
10308 let rename = self.semantics_provider.as_ref()?.perform_rename(
10309 &buffer,
10310 start,
10311 new_name.clone(),
10312 cx,
10313 )?;
10314
10315 Some(cx.spawn(|editor, mut cx| async move {
10316 let project_transaction = rename.await?;
10317 Self::open_project_transaction(
10318 &editor,
10319 workspace,
10320 project_transaction,
10321 format!("Rename: {} → {}", old_name, new_name),
10322 cx.clone(),
10323 )
10324 .await?;
10325
10326 editor.update(&mut cx, |editor, cx| {
10327 editor.refresh_document_highlights(cx);
10328 })?;
10329 Ok(())
10330 }))
10331 }
10332
10333 fn take_rename(
10334 &mut self,
10335 moving_cursor: bool,
10336 cx: &mut ViewContext<Self>,
10337 ) -> Option<RenameState> {
10338 let rename = self.pending_rename.take()?;
10339 if rename.editor.focus_handle(cx).is_focused(cx) {
10340 cx.focus(&self.focus_handle);
10341 }
10342
10343 self.remove_blocks(
10344 [rename.block_id].into_iter().collect(),
10345 Some(Autoscroll::fit()),
10346 cx,
10347 );
10348 self.clear_highlights::<Rename>(cx);
10349 self.show_local_selections = true;
10350
10351 if moving_cursor {
10352 let rename_editor = rename.editor.read(cx);
10353 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10354
10355 // Update the selection to match the position of the selection inside
10356 // the rename editor.
10357 let snapshot = self.buffer.read(cx).read(cx);
10358 let rename_range = rename.range.to_offset(&snapshot);
10359 let cursor_in_editor = snapshot
10360 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10361 .min(rename_range.end);
10362 drop(snapshot);
10363
10364 self.change_selections(None, cx, |s| {
10365 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10366 });
10367 } else {
10368 self.refresh_document_highlights(cx);
10369 }
10370
10371 Some(rename)
10372 }
10373
10374 pub fn pending_rename(&self) -> Option<&RenameState> {
10375 self.pending_rename.as_ref()
10376 }
10377
10378 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10379 let project = match &self.project {
10380 Some(project) => project.clone(),
10381 None => return None,
10382 };
10383
10384 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10385 }
10386
10387 fn format_selections(
10388 &mut self,
10389 _: &FormatSelections,
10390 cx: &mut ViewContext<Self>,
10391 ) -> Option<Task<Result<()>>> {
10392 let project = match &self.project {
10393 Some(project) => project.clone(),
10394 None => return None,
10395 };
10396
10397 let selections = self
10398 .selections
10399 .all_adjusted(cx)
10400 .into_iter()
10401 .filter(|s| !s.is_empty())
10402 .collect_vec();
10403
10404 Some(self.perform_format(
10405 project,
10406 FormatTrigger::Manual,
10407 FormatTarget::Ranges(selections),
10408 cx,
10409 ))
10410 }
10411
10412 fn perform_format(
10413 &mut self,
10414 project: Model<Project>,
10415 trigger: FormatTrigger,
10416 target: FormatTarget,
10417 cx: &mut ViewContext<Self>,
10418 ) -> Task<Result<()>> {
10419 let buffer = self.buffer().clone();
10420 let mut buffers = buffer.read(cx).all_buffers();
10421 if trigger == FormatTrigger::Save {
10422 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10423 }
10424
10425 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10426 let format = project.update(cx, |project, cx| {
10427 project.format(buffers, true, trigger, target, cx)
10428 });
10429
10430 cx.spawn(|_, mut cx| async move {
10431 let transaction = futures::select_biased! {
10432 () = timeout => {
10433 log::warn!("timed out waiting for formatting");
10434 None
10435 }
10436 transaction = format.log_err().fuse() => transaction,
10437 };
10438
10439 buffer
10440 .update(&mut cx, |buffer, cx| {
10441 if let Some(transaction) = transaction {
10442 if !buffer.is_singleton() {
10443 buffer.push_transaction(&transaction.0, cx);
10444 }
10445 }
10446
10447 cx.notify();
10448 })
10449 .ok();
10450
10451 Ok(())
10452 })
10453 }
10454
10455 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10456 if let Some(project) = self.project.clone() {
10457 self.buffer.update(cx, |multi_buffer, cx| {
10458 project.update(cx, |project, cx| {
10459 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10460 });
10461 })
10462 }
10463 }
10464
10465 fn cancel_language_server_work(
10466 &mut self,
10467 _: &CancelLanguageServerWork,
10468 cx: &mut ViewContext<Self>,
10469 ) {
10470 if let Some(project) = self.project.clone() {
10471 self.buffer.update(cx, |multi_buffer, cx| {
10472 project.update(cx, |project, cx| {
10473 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10474 });
10475 })
10476 }
10477 }
10478
10479 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10480 cx.show_character_palette();
10481 }
10482
10483 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10484 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10485 let buffer = self.buffer.read(cx).snapshot(cx);
10486 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10487 let is_valid = buffer
10488 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10489 .any(|entry| {
10490 entry.diagnostic.is_primary
10491 && !entry.range.is_empty()
10492 && entry.range.start == primary_range_start
10493 && entry.diagnostic.message == active_diagnostics.primary_message
10494 });
10495
10496 if is_valid != active_diagnostics.is_valid {
10497 active_diagnostics.is_valid = is_valid;
10498 let mut new_styles = HashMap::default();
10499 for (block_id, diagnostic) in &active_diagnostics.blocks {
10500 new_styles.insert(
10501 *block_id,
10502 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10503 );
10504 }
10505 self.display_map.update(cx, |display_map, _cx| {
10506 display_map.replace_blocks(new_styles)
10507 });
10508 }
10509 }
10510 }
10511
10512 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10513 self.dismiss_diagnostics(cx);
10514 let snapshot = self.snapshot(cx);
10515 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10516 let buffer = self.buffer.read(cx).snapshot(cx);
10517
10518 let mut primary_range = None;
10519 let mut primary_message = None;
10520 let mut group_end = Point::zero();
10521 let diagnostic_group = buffer
10522 .diagnostic_group::<MultiBufferPoint>(group_id)
10523 .filter_map(|entry| {
10524 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10525 && (entry.range.start.row == entry.range.end.row
10526 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10527 {
10528 return None;
10529 }
10530 if entry.range.end > group_end {
10531 group_end = entry.range.end;
10532 }
10533 if entry.diagnostic.is_primary {
10534 primary_range = Some(entry.range.clone());
10535 primary_message = Some(entry.diagnostic.message.clone());
10536 }
10537 Some(entry)
10538 })
10539 .collect::<Vec<_>>();
10540 let primary_range = primary_range?;
10541 let primary_message = primary_message?;
10542 let primary_range =
10543 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10544
10545 let blocks = display_map
10546 .insert_blocks(
10547 diagnostic_group.iter().map(|entry| {
10548 let diagnostic = entry.diagnostic.clone();
10549 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10550 BlockProperties {
10551 style: BlockStyle::Fixed,
10552 placement: BlockPlacement::Below(
10553 buffer.anchor_after(entry.range.start),
10554 ),
10555 height: message_height,
10556 render: diagnostic_block_renderer(diagnostic, None, true, true),
10557 priority: 0,
10558 }
10559 }),
10560 cx,
10561 )
10562 .into_iter()
10563 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10564 .collect();
10565
10566 Some(ActiveDiagnosticGroup {
10567 primary_range,
10568 primary_message,
10569 group_id,
10570 blocks,
10571 is_valid: true,
10572 })
10573 });
10574 self.active_diagnostics.is_some()
10575 }
10576
10577 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10578 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10579 self.display_map.update(cx, |display_map, cx| {
10580 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10581 });
10582 cx.notify();
10583 }
10584 }
10585
10586 pub fn set_selections_from_remote(
10587 &mut self,
10588 selections: Vec<Selection<Anchor>>,
10589 pending_selection: Option<Selection<Anchor>>,
10590 cx: &mut ViewContext<Self>,
10591 ) {
10592 let old_cursor_position = self.selections.newest_anchor().head();
10593 self.selections.change_with(cx, |s| {
10594 s.select_anchors(selections);
10595 if let Some(pending_selection) = pending_selection {
10596 s.set_pending(pending_selection, SelectMode::Character);
10597 } else {
10598 s.clear_pending();
10599 }
10600 });
10601 self.selections_did_change(false, &old_cursor_position, true, cx);
10602 }
10603
10604 fn push_to_selection_history(&mut self) {
10605 self.selection_history.push(SelectionHistoryEntry {
10606 selections: self.selections.disjoint_anchors(),
10607 select_next_state: self.select_next_state.clone(),
10608 select_prev_state: self.select_prev_state.clone(),
10609 add_selections_state: self.add_selections_state.clone(),
10610 });
10611 }
10612
10613 pub fn transact(
10614 &mut self,
10615 cx: &mut ViewContext<Self>,
10616 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10617 ) -> Option<TransactionId> {
10618 self.start_transaction_at(Instant::now(), cx);
10619 update(self, cx);
10620 self.end_transaction_at(Instant::now(), cx)
10621 }
10622
10623 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10624 self.end_selection(cx);
10625 if let Some(tx_id) = self
10626 .buffer
10627 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10628 {
10629 self.selection_history
10630 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10631 cx.emit(EditorEvent::TransactionBegun {
10632 transaction_id: tx_id,
10633 })
10634 }
10635 }
10636
10637 fn end_transaction_at(
10638 &mut self,
10639 now: Instant,
10640 cx: &mut ViewContext<Self>,
10641 ) -> Option<TransactionId> {
10642 if let Some(transaction_id) = self
10643 .buffer
10644 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10645 {
10646 if let Some((_, end_selections)) =
10647 self.selection_history.transaction_mut(transaction_id)
10648 {
10649 *end_selections = Some(self.selections.disjoint_anchors());
10650 } else {
10651 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10652 }
10653
10654 cx.emit(EditorEvent::Edited { transaction_id });
10655 Some(transaction_id)
10656 } else {
10657 None
10658 }
10659 }
10660
10661 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10662 let selection = self.selections.newest::<Point>(cx);
10663
10664 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10665 let range = if selection.is_empty() {
10666 let point = selection.head().to_display_point(&display_map);
10667 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10668 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10669 .to_point(&display_map);
10670 start..end
10671 } else {
10672 selection.range()
10673 };
10674 if display_map.folds_in_range(range).next().is_some() {
10675 self.unfold_lines(&Default::default(), cx)
10676 } else {
10677 self.fold(&Default::default(), cx)
10678 }
10679 }
10680
10681 pub fn toggle_fold_recursive(
10682 &mut self,
10683 _: &actions::ToggleFoldRecursive,
10684 cx: &mut ViewContext<Self>,
10685 ) {
10686 let selection = self.selections.newest::<Point>(cx);
10687
10688 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10689 let range = if selection.is_empty() {
10690 let point = selection.head().to_display_point(&display_map);
10691 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10692 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10693 .to_point(&display_map);
10694 start..end
10695 } else {
10696 selection.range()
10697 };
10698 if display_map.folds_in_range(range).next().is_some() {
10699 self.unfold_recursive(&Default::default(), cx)
10700 } else {
10701 self.fold_recursive(&Default::default(), cx)
10702 }
10703 }
10704
10705 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10706 let mut fold_ranges = Vec::new();
10707 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10708 let selections = self.selections.all_adjusted(cx);
10709
10710 for selection in selections {
10711 let range = selection.range().sorted();
10712 let buffer_start_row = range.start.row;
10713
10714 if range.start.row != range.end.row {
10715 let mut found = false;
10716 let mut row = range.start.row;
10717 while row <= range.end.row {
10718 if let Some((foldable_range, fold_text)) =
10719 { display_map.foldable_range(MultiBufferRow(row)) }
10720 {
10721 found = true;
10722 row = foldable_range.end.row + 1;
10723 fold_ranges.push((foldable_range, fold_text));
10724 } else {
10725 row += 1
10726 }
10727 }
10728 if found {
10729 continue;
10730 }
10731 }
10732
10733 for row in (0..=range.start.row).rev() {
10734 if let Some((foldable_range, fold_text)) =
10735 display_map.foldable_range(MultiBufferRow(row))
10736 {
10737 if foldable_range.end.row >= buffer_start_row {
10738 fold_ranges.push((foldable_range, fold_text));
10739 if row <= range.start.row {
10740 break;
10741 }
10742 }
10743 }
10744 }
10745 }
10746
10747 self.fold_ranges(fold_ranges, true, cx);
10748 }
10749
10750 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10751 let fold_at_level = fold_at.level;
10752 let snapshot = self.buffer.read(cx).snapshot(cx);
10753 let mut fold_ranges = Vec::new();
10754 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10755
10756 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10757 while start_row < end_row {
10758 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10759 Some(foldable_range) => {
10760 let nested_start_row = foldable_range.0.start.row + 1;
10761 let nested_end_row = foldable_range.0.end.row;
10762
10763 if current_level == fold_at_level {
10764 fold_ranges.push(foldable_range);
10765 }
10766
10767 if current_level <= fold_at_level {
10768 stack.push((nested_start_row, nested_end_row, current_level + 1));
10769 }
10770
10771 start_row = nested_end_row + 1;
10772 }
10773 None => start_row += 1,
10774 }
10775 }
10776 }
10777
10778 self.fold_ranges(fold_ranges, true, cx);
10779 }
10780
10781 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10782 let mut fold_ranges = Vec::new();
10783 let snapshot = self.buffer.read(cx).snapshot(cx);
10784
10785 for row in 0..snapshot.max_buffer_row().0 {
10786 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10787 fold_ranges.push(foldable_range);
10788 }
10789 }
10790
10791 self.fold_ranges(fold_ranges, true, cx);
10792 }
10793
10794 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10795 let mut fold_ranges = Vec::new();
10796 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10797 let selections = self.selections.all_adjusted(cx);
10798
10799 for selection in selections {
10800 let range = selection.range().sorted();
10801 let buffer_start_row = range.start.row;
10802
10803 if range.start.row != range.end.row {
10804 let mut found = false;
10805 for row in range.start.row..=range.end.row {
10806 if let Some((foldable_range, fold_text)) =
10807 { display_map.foldable_range(MultiBufferRow(row)) }
10808 {
10809 found = true;
10810 fold_ranges.push((foldable_range, fold_text));
10811 }
10812 }
10813 if found {
10814 continue;
10815 }
10816 }
10817
10818 for row in (0..=range.start.row).rev() {
10819 if let Some((foldable_range, fold_text)) =
10820 display_map.foldable_range(MultiBufferRow(row))
10821 {
10822 if foldable_range.end.row >= buffer_start_row {
10823 fold_ranges.push((foldable_range, fold_text));
10824 } else {
10825 break;
10826 }
10827 }
10828 }
10829 }
10830
10831 self.fold_ranges(fold_ranges, true, cx);
10832 }
10833
10834 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10835 let buffer_row = fold_at.buffer_row;
10836 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10837
10838 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10839 let autoscroll = self
10840 .selections
10841 .all::<Point>(cx)
10842 .iter()
10843 .any(|selection| fold_range.overlaps(&selection.range()));
10844
10845 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10846 }
10847 }
10848
10849 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10850 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10851 let buffer = &display_map.buffer_snapshot;
10852 let selections = self.selections.all::<Point>(cx);
10853 let ranges = selections
10854 .iter()
10855 .map(|s| {
10856 let range = s.display_range(&display_map).sorted();
10857 let mut start = range.start.to_point(&display_map);
10858 let mut end = range.end.to_point(&display_map);
10859 start.column = 0;
10860 end.column = buffer.line_len(MultiBufferRow(end.row));
10861 start..end
10862 })
10863 .collect::<Vec<_>>();
10864
10865 self.unfold_ranges(ranges, true, true, cx);
10866 }
10867
10868 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10869 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10870 let selections = self.selections.all::<Point>(cx);
10871 let ranges = selections
10872 .iter()
10873 .map(|s| {
10874 let mut range = s.display_range(&display_map).sorted();
10875 *range.start.column_mut() = 0;
10876 *range.end.column_mut() = display_map.line_len(range.end.row());
10877 let start = range.start.to_point(&display_map);
10878 let end = range.end.to_point(&display_map);
10879 start..end
10880 })
10881 .collect::<Vec<_>>();
10882
10883 self.unfold_ranges(ranges, true, true, cx);
10884 }
10885
10886 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10887 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10888
10889 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10890 ..Point::new(
10891 unfold_at.buffer_row.0,
10892 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10893 );
10894
10895 let autoscroll = self
10896 .selections
10897 .all::<Point>(cx)
10898 .iter()
10899 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10900
10901 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10902 }
10903
10904 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10905 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10906 self.unfold_ranges(
10907 [Point::zero()..display_map.max_point().to_point(&display_map)],
10908 true,
10909 true,
10910 cx,
10911 );
10912 }
10913
10914 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10915 let selections = self.selections.all::<Point>(cx);
10916 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10917 let line_mode = self.selections.line_mode;
10918 let ranges = selections.into_iter().map(|s| {
10919 if line_mode {
10920 let start = Point::new(s.start.row, 0);
10921 let end = Point::new(
10922 s.end.row,
10923 display_map
10924 .buffer_snapshot
10925 .line_len(MultiBufferRow(s.end.row)),
10926 );
10927 (start..end, display_map.fold_placeholder.clone())
10928 } else {
10929 (s.start..s.end, display_map.fold_placeholder.clone())
10930 }
10931 });
10932 self.fold_ranges(ranges, true, cx);
10933 }
10934
10935 pub fn fold_ranges<T: ToOffset + Clone>(
10936 &mut self,
10937 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10938 auto_scroll: bool,
10939 cx: &mut ViewContext<Self>,
10940 ) {
10941 let mut fold_ranges = Vec::new();
10942 let mut buffers_affected = HashMap::default();
10943 let multi_buffer = self.buffer().read(cx);
10944 for (fold_range, fold_text) in ranges {
10945 if let Some((_, buffer, _)) =
10946 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10947 {
10948 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10949 };
10950 fold_ranges.push((fold_range, fold_text));
10951 }
10952
10953 let mut ranges = fold_ranges.into_iter().peekable();
10954 if ranges.peek().is_some() {
10955 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10956
10957 if auto_scroll {
10958 self.request_autoscroll(Autoscroll::fit(), cx);
10959 }
10960
10961 for buffer in buffers_affected.into_values() {
10962 self.sync_expanded_diff_hunks(buffer, cx);
10963 }
10964
10965 cx.notify();
10966
10967 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10968 // Clear diagnostics block when folding a range that contains it.
10969 let snapshot = self.snapshot(cx);
10970 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10971 drop(snapshot);
10972 self.active_diagnostics = Some(active_diagnostics);
10973 self.dismiss_diagnostics(cx);
10974 } else {
10975 self.active_diagnostics = Some(active_diagnostics);
10976 }
10977 }
10978
10979 self.scrollbar_marker_state.dirty = true;
10980 }
10981 }
10982
10983 pub fn unfold_ranges<T: ToOffset + Clone>(
10984 &mut self,
10985 ranges: impl IntoIterator<Item = Range<T>>,
10986 inclusive: bool,
10987 auto_scroll: bool,
10988 cx: &mut ViewContext<Self>,
10989 ) {
10990 let mut unfold_ranges = Vec::new();
10991 let mut buffers_affected = HashMap::default();
10992 let multi_buffer = self.buffer().read(cx);
10993 for range in ranges {
10994 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10995 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10996 };
10997 unfold_ranges.push(range);
10998 }
10999
11000 let mut ranges = unfold_ranges.into_iter().peekable();
11001 if ranges.peek().is_some() {
11002 self.display_map
11003 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
11004 if auto_scroll {
11005 self.request_autoscroll(Autoscroll::fit(), cx);
11006 }
11007
11008 for buffer in buffers_affected.into_values() {
11009 self.sync_expanded_diff_hunks(buffer, cx);
11010 }
11011
11012 cx.notify();
11013 self.scrollbar_marker_state.dirty = true;
11014 self.active_indent_guides_state.dirty = true;
11015 }
11016 }
11017
11018 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11019 self.display_map.read(cx).fold_placeholder.clone()
11020 }
11021
11022 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11023 if hovered != self.gutter_hovered {
11024 self.gutter_hovered = hovered;
11025 cx.notify();
11026 }
11027 }
11028
11029 pub fn insert_blocks(
11030 &mut self,
11031 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11032 autoscroll: Option<Autoscroll>,
11033 cx: &mut ViewContext<Self>,
11034 ) -> Vec<CustomBlockId> {
11035 let blocks = self
11036 .display_map
11037 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11038 if let Some(autoscroll) = autoscroll {
11039 self.request_autoscroll(autoscroll, cx);
11040 }
11041 cx.notify();
11042 blocks
11043 }
11044
11045 pub fn resize_blocks(
11046 &mut self,
11047 heights: HashMap<CustomBlockId, u32>,
11048 autoscroll: Option<Autoscroll>,
11049 cx: &mut ViewContext<Self>,
11050 ) {
11051 self.display_map
11052 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11053 if let Some(autoscroll) = autoscroll {
11054 self.request_autoscroll(autoscroll, cx);
11055 }
11056 cx.notify();
11057 }
11058
11059 pub fn replace_blocks(
11060 &mut self,
11061 renderers: HashMap<CustomBlockId, RenderBlock>,
11062 autoscroll: Option<Autoscroll>,
11063 cx: &mut ViewContext<Self>,
11064 ) {
11065 self.display_map
11066 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11067 if let Some(autoscroll) = autoscroll {
11068 self.request_autoscroll(autoscroll, cx);
11069 }
11070 cx.notify();
11071 }
11072
11073 pub fn remove_blocks(
11074 &mut self,
11075 block_ids: HashSet<CustomBlockId>,
11076 autoscroll: Option<Autoscroll>,
11077 cx: &mut ViewContext<Self>,
11078 ) {
11079 self.display_map.update(cx, |display_map, cx| {
11080 display_map.remove_blocks(block_ids, cx)
11081 });
11082 if let Some(autoscroll) = autoscroll {
11083 self.request_autoscroll(autoscroll, cx);
11084 }
11085 cx.notify();
11086 }
11087
11088 pub fn row_for_block(
11089 &self,
11090 block_id: CustomBlockId,
11091 cx: &mut ViewContext<Self>,
11092 ) -> Option<DisplayRow> {
11093 self.display_map
11094 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11095 }
11096
11097 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11098 self.focused_block = Some(focused_block);
11099 }
11100
11101 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11102 self.focused_block.take()
11103 }
11104
11105 pub fn insert_creases(
11106 &mut self,
11107 creases: impl IntoIterator<Item = Crease>,
11108 cx: &mut ViewContext<Self>,
11109 ) -> Vec<CreaseId> {
11110 self.display_map
11111 .update(cx, |map, cx| map.insert_creases(creases, cx))
11112 }
11113
11114 pub fn remove_creases(
11115 &mut self,
11116 ids: impl IntoIterator<Item = CreaseId>,
11117 cx: &mut ViewContext<Self>,
11118 ) {
11119 self.display_map
11120 .update(cx, |map, cx| map.remove_creases(ids, cx));
11121 }
11122
11123 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11124 self.display_map
11125 .update(cx, |map, cx| map.snapshot(cx))
11126 .longest_row()
11127 }
11128
11129 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11130 self.display_map
11131 .update(cx, |map, cx| map.snapshot(cx))
11132 .max_point()
11133 }
11134
11135 pub fn text(&self, cx: &AppContext) -> String {
11136 self.buffer.read(cx).read(cx).text()
11137 }
11138
11139 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11140 let text = self.text(cx);
11141 let text = text.trim();
11142
11143 if text.is_empty() {
11144 return None;
11145 }
11146
11147 Some(text.to_string())
11148 }
11149
11150 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11151 self.transact(cx, |this, cx| {
11152 this.buffer
11153 .read(cx)
11154 .as_singleton()
11155 .expect("you can only call set_text on editors for singleton buffers")
11156 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11157 });
11158 }
11159
11160 pub fn display_text(&self, cx: &mut AppContext) -> String {
11161 self.display_map
11162 .update(cx, |map, cx| map.snapshot(cx))
11163 .text()
11164 }
11165
11166 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11167 let mut wrap_guides = smallvec::smallvec![];
11168
11169 if self.show_wrap_guides == Some(false) {
11170 return wrap_guides;
11171 }
11172
11173 let settings = self.buffer.read(cx).settings_at(0, cx);
11174 if settings.show_wrap_guides {
11175 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11176 wrap_guides.push((soft_wrap as usize, true));
11177 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11178 wrap_guides.push((soft_wrap as usize, true));
11179 }
11180 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11181 }
11182
11183 wrap_guides
11184 }
11185
11186 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11187 let settings = self.buffer.read(cx).settings_at(0, cx);
11188 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11189 match mode {
11190 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11191 SoftWrap::None
11192 }
11193 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11194 language_settings::SoftWrap::PreferredLineLength => {
11195 SoftWrap::Column(settings.preferred_line_length)
11196 }
11197 language_settings::SoftWrap::Bounded => {
11198 SoftWrap::Bounded(settings.preferred_line_length)
11199 }
11200 }
11201 }
11202
11203 pub fn set_soft_wrap_mode(
11204 &mut self,
11205 mode: language_settings::SoftWrap,
11206 cx: &mut ViewContext<Self>,
11207 ) {
11208 self.soft_wrap_mode_override = Some(mode);
11209 cx.notify();
11210 }
11211
11212 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11213 self.text_style_refinement = Some(style);
11214 }
11215
11216 /// called by the Element so we know what style we were most recently rendered with.
11217 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11218 let rem_size = cx.rem_size();
11219 self.display_map.update(cx, |map, cx| {
11220 map.set_font(
11221 style.text.font(),
11222 style.text.font_size.to_pixels(rem_size),
11223 cx,
11224 )
11225 });
11226 self.style = Some(style);
11227 }
11228
11229 pub fn style(&self) -> Option<&EditorStyle> {
11230 self.style.as_ref()
11231 }
11232
11233 // Called by the element. This method is not designed to be called outside of the editor
11234 // element's layout code because it does not notify when rewrapping is computed synchronously.
11235 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11236 self.display_map
11237 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11238 }
11239
11240 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11241 if self.soft_wrap_mode_override.is_some() {
11242 self.soft_wrap_mode_override.take();
11243 } else {
11244 let soft_wrap = match self.soft_wrap_mode(cx) {
11245 SoftWrap::GitDiff => return,
11246 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11247 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11248 language_settings::SoftWrap::None
11249 }
11250 };
11251 self.soft_wrap_mode_override = Some(soft_wrap);
11252 }
11253 cx.notify();
11254 }
11255
11256 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11257 let Some(workspace) = self.workspace() else {
11258 return;
11259 };
11260 let fs = workspace.read(cx).app_state().fs.clone();
11261 let current_show = TabBarSettings::get_global(cx).show;
11262 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11263 setting.show = Some(!current_show);
11264 });
11265 }
11266
11267 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11268 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11269 self.buffer
11270 .read(cx)
11271 .settings_at(0, cx)
11272 .indent_guides
11273 .enabled
11274 });
11275 self.show_indent_guides = Some(!currently_enabled);
11276 cx.notify();
11277 }
11278
11279 fn should_show_indent_guides(&self) -> Option<bool> {
11280 self.show_indent_guides
11281 }
11282
11283 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11284 let mut editor_settings = EditorSettings::get_global(cx).clone();
11285 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11286 EditorSettings::override_global(editor_settings, cx);
11287 }
11288
11289 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11290 self.use_relative_line_numbers
11291 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11292 }
11293
11294 pub fn toggle_relative_line_numbers(
11295 &mut self,
11296 _: &ToggleRelativeLineNumbers,
11297 cx: &mut ViewContext<Self>,
11298 ) {
11299 let is_relative = self.should_use_relative_line_numbers(cx);
11300 self.set_relative_line_number(Some(!is_relative), cx)
11301 }
11302
11303 pub fn set_relative_line_number(
11304 &mut self,
11305 is_relative: Option<bool>,
11306 cx: &mut ViewContext<Self>,
11307 ) {
11308 self.use_relative_line_numbers = is_relative;
11309 cx.notify();
11310 }
11311
11312 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11313 self.show_gutter = show_gutter;
11314 cx.notify();
11315 }
11316
11317 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11318 self.show_line_numbers = Some(show_line_numbers);
11319 cx.notify();
11320 }
11321
11322 pub fn set_show_git_diff_gutter(
11323 &mut self,
11324 show_git_diff_gutter: bool,
11325 cx: &mut ViewContext<Self>,
11326 ) {
11327 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11328 cx.notify();
11329 }
11330
11331 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11332 self.show_code_actions = Some(show_code_actions);
11333 cx.notify();
11334 }
11335
11336 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11337 self.show_runnables = Some(show_runnables);
11338 cx.notify();
11339 }
11340
11341 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11342 if self.display_map.read(cx).masked != masked {
11343 self.display_map.update(cx, |map, _| map.masked = masked);
11344 }
11345 cx.notify()
11346 }
11347
11348 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11349 self.show_wrap_guides = Some(show_wrap_guides);
11350 cx.notify();
11351 }
11352
11353 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11354 self.show_indent_guides = Some(show_indent_guides);
11355 cx.notify();
11356 }
11357
11358 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11359 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11360 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11361 if let Some(dir) = file.abs_path(cx).parent() {
11362 return Some(dir.to_owned());
11363 }
11364 }
11365
11366 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11367 return Some(project_path.path.to_path_buf());
11368 }
11369 }
11370
11371 None
11372 }
11373
11374 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11375 self.active_excerpt(cx)?
11376 .1
11377 .read(cx)
11378 .file()
11379 .and_then(|f| f.as_local())
11380 }
11381
11382 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11383 if let Some(target) = self.target_file(cx) {
11384 cx.reveal_path(&target.abs_path(cx));
11385 }
11386 }
11387
11388 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11389 if let Some(file) = self.target_file(cx) {
11390 if let Some(path) = file.abs_path(cx).to_str() {
11391 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11392 }
11393 }
11394 }
11395
11396 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11397 if let Some(file) = self.target_file(cx) {
11398 if let Some(path) = file.path().to_str() {
11399 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11400 }
11401 }
11402 }
11403
11404 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11405 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11406
11407 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11408 self.start_git_blame(true, cx);
11409 }
11410
11411 cx.notify();
11412 }
11413
11414 pub fn toggle_git_blame_inline(
11415 &mut self,
11416 _: &ToggleGitBlameInline,
11417 cx: &mut ViewContext<Self>,
11418 ) {
11419 self.toggle_git_blame_inline_internal(true, cx);
11420 cx.notify();
11421 }
11422
11423 pub fn git_blame_inline_enabled(&self) -> bool {
11424 self.git_blame_inline_enabled
11425 }
11426
11427 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11428 self.show_selection_menu = self
11429 .show_selection_menu
11430 .map(|show_selections_menu| !show_selections_menu)
11431 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11432
11433 cx.notify();
11434 }
11435
11436 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11437 self.show_selection_menu
11438 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11439 }
11440
11441 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11442 if let Some(project) = self.project.as_ref() {
11443 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11444 return;
11445 };
11446
11447 if buffer.read(cx).file().is_none() {
11448 return;
11449 }
11450
11451 let focused = self.focus_handle(cx).contains_focused(cx);
11452
11453 let project = project.clone();
11454 let blame =
11455 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11456 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11457 self.blame = Some(blame);
11458 }
11459 }
11460
11461 fn toggle_git_blame_inline_internal(
11462 &mut self,
11463 user_triggered: bool,
11464 cx: &mut ViewContext<Self>,
11465 ) {
11466 if self.git_blame_inline_enabled {
11467 self.git_blame_inline_enabled = false;
11468 self.show_git_blame_inline = false;
11469 self.show_git_blame_inline_delay_task.take();
11470 } else {
11471 self.git_blame_inline_enabled = true;
11472 self.start_git_blame_inline(user_triggered, cx);
11473 }
11474
11475 cx.notify();
11476 }
11477
11478 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11479 self.start_git_blame(user_triggered, cx);
11480
11481 if ProjectSettings::get_global(cx)
11482 .git
11483 .inline_blame_delay()
11484 .is_some()
11485 {
11486 self.start_inline_blame_timer(cx);
11487 } else {
11488 self.show_git_blame_inline = true
11489 }
11490 }
11491
11492 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11493 self.blame.as_ref()
11494 }
11495
11496 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11497 self.show_git_blame_gutter && self.has_blame_entries(cx)
11498 }
11499
11500 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11501 self.show_git_blame_inline
11502 && self.focus_handle.is_focused(cx)
11503 && !self.newest_selection_head_on_empty_line(cx)
11504 && self.has_blame_entries(cx)
11505 }
11506
11507 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11508 self.blame()
11509 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11510 }
11511
11512 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11513 let cursor_anchor = self.selections.newest_anchor().head();
11514
11515 let snapshot = self.buffer.read(cx).snapshot(cx);
11516 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11517
11518 snapshot.line_len(buffer_row) == 0
11519 }
11520
11521 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11522 let buffer_and_selection = maybe!({
11523 let selection = self.selections.newest::<Point>(cx);
11524 let selection_range = selection.range();
11525
11526 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11527 (buffer, selection_range.start.row..selection_range.end.row)
11528 } else {
11529 let buffer_ranges = self
11530 .buffer()
11531 .read(cx)
11532 .range_to_buffer_ranges(selection_range, cx);
11533
11534 let (buffer, range, _) = if selection.reversed {
11535 buffer_ranges.first()
11536 } else {
11537 buffer_ranges.last()
11538 }?;
11539
11540 let snapshot = buffer.read(cx).snapshot();
11541 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11542 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11543 (buffer.clone(), selection)
11544 };
11545
11546 Some((buffer, selection))
11547 });
11548
11549 let Some((buffer, selection)) = buffer_and_selection else {
11550 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11551 };
11552
11553 let Some(project) = self.project.as_ref() else {
11554 return Task::ready(Err(anyhow!("editor does not have project")));
11555 };
11556
11557 project.update(cx, |project, cx| {
11558 project.get_permalink_to_line(&buffer, selection, cx)
11559 })
11560 }
11561
11562 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11563 let permalink_task = self.get_permalink_to_line(cx);
11564 let workspace = self.workspace();
11565
11566 cx.spawn(|_, mut cx| async move {
11567 match permalink_task.await {
11568 Ok(permalink) => {
11569 cx.update(|cx| {
11570 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11571 })
11572 .ok();
11573 }
11574 Err(err) => {
11575 let message = format!("Failed to copy permalink: {err}");
11576
11577 Err::<(), anyhow::Error>(err).log_err();
11578
11579 if let Some(workspace) = workspace {
11580 workspace
11581 .update(&mut cx, |workspace, cx| {
11582 struct CopyPermalinkToLine;
11583
11584 workspace.show_toast(
11585 Toast::new(
11586 NotificationId::unique::<CopyPermalinkToLine>(),
11587 message,
11588 ),
11589 cx,
11590 )
11591 })
11592 .ok();
11593 }
11594 }
11595 }
11596 })
11597 .detach();
11598 }
11599
11600 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11601 if let Some(file) = self.target_file(cx) {
11602 if let Some(path) = file.path().to_str() {
11603 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11604 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11605 }
11606 }
11607 }
11608
11609 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11610 let permalink_task = self.get_permalink_to_line(cx);
11611 let workspace = self.workspace();
11612
11613 cx.spawn(|_, mut cx| async move {
11614 match permalink_task.await {
11615 Ok(permalink) => {
11616 cx.update(|cx| {
11617 cx.open_url(permalink.as_ref());
11618 })
11619 .ok();
11620 }
11621 Err(err) => {
11622 let message = format!("Failed to open permalink: {err}");
11623
11624 Err::<(), anyhow::Error>(err).log_err();
11625
11626 if let Some(workspace) = workspace {
11627 workspace
11628 .update(&mut cx, |workspace, cx| {
11629 struct OpenPermalinkToLine;
11630
11631 workspace.show_toast(
11632 Toast::new(
11633 NotificationId::unique::<OpenPermalinkToLine>(),
11634 message,
11635 ),
11636 cx,
11637 )
11638 })
11639 .ok();
11640 }
11641 }
11642 }
11643 })
11644 .detach();
11645 }
11646
11647 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11648 /// last highlight added will be used.
11649 ///
11650 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11651 pub fn highlight_rows<T: 'static>(
11652 &mut self,
11653 range: Range<Anchor>,
11654 color: Hsla,
11655 should_autoscroll: bool,
11656 cx: &mut ViewContext<Self>,
11657 ) {
11658 let snapshot = self.buffer().read(cx).snapshot(cx);
11659 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11660 let ix = row_highlights.binary_search_by(|highlight| {
11661 Ordering::Equal
11662 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11663 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11664 });
11665
11666 if let Err(mut ix) = ix {
11667 let index = post_inc(&mut self.highlight_order);
11668
11669 // If this range intersects with the preceding highlight, then merge it with
11670 // the preceding highlight. Otherwise insert a new highlight.
11671 let mut merged = false;
11672 if ix > 0 {
11673 let prev_highlight = &mut row_highlights[ix - 1];
11674 if prev_highlight
11675 .range
11676 .end
11677 .cmp(&range.start, &snapshot)
11678 .is_ge()
11679 {
11680 ix -= 1;
11681 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11682 prev_highlight.range.end = range.end;
11683 }
11684 merged = true;
11685 prev_highlight.index = index;
11686 prev_highlight.color = color;
11687 prev_highlight.should_autoscroll = should_autoscroll;
11688 }
11689 }
11690
11691 if !merged {
11692 row_highlights.insert(
11693 ix,
11694 RowHighlight {
11695 range: range.clone(),
11696 index,
11697 color,
11698 should_autoscroll,
11699 },
11700 );
11701 }
11702
11703 // If any of the following highlights intersect with this one, merge them.
11704 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11705 let highlight = &row_highlights[ix];
11706 if next_highlight
11707 .range
11708 .start
11709 .cmp(&highlight.range.end, &snapshot)
11710 .is_le()
11711 {
11712 if next_highlight
11713 .range
11714 .end
11715 .cmp(&highlight.range.end, &snapshot)
11716 .is_gt()
11717 {
11718 row_highlights[ix].range.end = next_highlight.range.end;
11719 }
11720 row_highlights.remove(ix + 1);
11721 } else {
11722 break;
11723 }
11724 }
11725 }
11726 }
11727
11728 /// Remove any highlighted row ranges of the given type that intersect the
11729 /// given ranges.
11730 pub fn remove_highlighted_rows<T: 'static>(
11731 &mut self,
11732 ranges_to_remove: Vec<Range<Anchor>>,
11733 cx: &mut ViewContext<Self>,
11734 ) {
11735 let snapshot = self.buffer().read(cx).snapshot(cx);
11736 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11737 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11738 row_highlights.retain(|highlight| {
11739 while let Some(range_to_remove) = ranges_to_remove.peek() {
11740 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11741 Ordering::Less | Ordering::Equal => {
11742 ranges_to_remove.next();
11743 }
11744 Ordering::Greater => {
11745 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11746 Ordering::Less | Ordering::Equal => {
11747 return false;
11748 }
11749 Ordering::Greater => break,
11750 }
11751 }
11752 }
11753 }
11754
11755 true
11756 })
11757 }
11758
11759 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11760 pub fn clear_row_highlights<T: 'static>(&mut self) {
11761 self.highlighted_rows.remove(&TypeId::of::<T>());
11762 }
11763
11764 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11765 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11766 self.highlighted_rows
11767 .get(&TypeId::of::<T>())
11768 .map_or(&[] as &[_], |vec| vec.as_slice())
11769 .iter()
11770 .map(|highlight| (highlight.range.clone(), highlight.color))
11771 }
11772
11773 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11774 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11775 /// Allows to ignore certain kinds of highlights.
11776 pub fn highlighted_display_rows(
11777 &mut self,
11778 cx: &mut WindowContext,
11779 ) -> BTreeMap<DisplayRow, Hsla> {
11780 let snapshot = self.snapshot(cx);
11781 let mut used_highlight_orders = HashMap::default();
11782 self.highlighted_rows
11783 .iter()
11784 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11785 .fold(
11786 BTreeMap::<DisplayRow, Hsla>::new(),
11787 |mut unique_rows, highlight| {
11788 let start = highlight.range.start.to_display_point(&snapshot);
11789 let end = highlight.range.end.to_display_point(&snapshot);
11790 let start_row = start.row().0;
11791 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11792 && end.column() == 0
11793 {
11794 end.row().0.saturating_sub(1)
11795 } else {
11796 end.row().0
11797 };
11798 for row in start_row..=end_row {
11799 let used_index =
11800 used_highlight_orders.entry(row).or_insert(highlight.index);
11801 if highlight.index >= *used_index {
11802 *used_index = highlight.index;
11803 unique_rows.insert(DisplayRow(row), highlight.color);
11804 }
11805 }
11806 unique_rows
11807 },
11808 )
11809 }
11810
11811 pub fn highlighted_display_row_for_autoscroll(
11812 &self,
11813 snapshot: &DisplaySnapshot,
11814 ) -> Option<DisplayRow> {
11815 self.highlighted_rows
11816 .values()
11817 .flat_map(|highlighted_rows| highlighted_rows.iter())
11818 .filter_map(|highlight| {
11819 if highlight.should_autoscroll {
11820 Some(highlight.range.start.to_display_point(snapshot).row())
11821 } else {
11822 None
11823 }
11824 })
11825 .min()
11826 }
11827
11828 pub fn set_search_within_ranges(
11829 &mut self,
11830 ranges: &[Range<Anchor>],
11831 cx: &mut ViewContext<Self>,
11832 ) {
11833 self.highlight_background::<SearchWithinRange>(
11834 ranges,
11835 |colors| colors.editor_document_highlight_read_background,
11836 cx,
11837 )
11838 }
11839
11840 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11841 self.breadcrumb_header = Some(new_header);
11842 }
11843
11844 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11845 self.clear_background_highlights::<SearchWithinRange>(cx);
11846 }
11847
11848 pub fn highlight_background<T: 'static>(
11849 &mut self,
11850 ranges: &[Range<Anchor>],
11851 color_fetcher: fn(&ThemeColors) -> Hsla,
11852 cx: &mut ViewContext<Self>,
11853 ) {
11854 self.background_highlights
11855 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11856 self.scrollbar_marker_state.dirty = true;
11857 cx.notify();
11858 }
11859
11860 pub fn clear_background_highlights<T: 'static>(
11861 &mut self,
11862 cx: &mut ViewContext<Self>,
11863 ) -> Option<BackgroundHighlight> {
11864 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11865 if !text_highlights.1.is_empty() {
11866 self.scrollbar_marker_state.dirty = true;
11867 cx.notify();
11868 }
11869 Some(text_highlights)
11870 }
11871
11872 pub fn highlight_gutter<T: 'static>(
11873 &mut self,
11874 ranges: &[Range<Anchor>],
11875 color_fetcher: fn(&AppContext) -> Hsla,
11876 cx: &mut ViewContext<Self>,
11877 ) {
11878 self.gutter_highlights
11879 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11880 cx.notify();
11881 }
11882
11883 pub fn clear_gutter_highlights<T: 'static>(
11884 &mut self,
11885 cx: &mut ViewContext<Self>,
11886 ) -> Option<GutterHighlight> {
11887 cx.notify();
11888 self.gutter_highlights.remove(&TypeId::of::<T>())
11889 }
11890
11891 #[cfg(feature = "test-support")]
11892 pub fn all_text_background_highlights(
11893 &mut self,
11894 cx: &mut ViewContext<Self>,
11895 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11896 let snapshot = self.snapshot(cx);
11897 let buffer = &snapshot.buffer_snapshot;
11898 let start = buffer.anchor_before(0);
11899 let end = buffer.anchor_after(buffer.len());
11900 let theme = cx.theme().colors();
11901 self.background_highlights_in_range(start..end, &snapshot, theme)
11902 }
11903
11904 #[cfg(feature = "test-support")]
11905 pub fn search_background_highlights(
11906 &mut self,
11907 cx: &mut ViewContext<Self>,
11908 ) -> Vec<Range<Point>> {
11909 let snapshot = self.buffer().read(cx).snapshot(cx);
11910
11911 let highlights = self
11912 .background_highlights
11913 .get(&TypeId::of::<items::BufferSearchHighlights>());
11914
11915 if let Some((_color, ranges)) = highlights {
11916 ranges
11917 .iter()
11918 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11919 .collect_vec()
11920 } else {
11921 vec![]
11922 }
11923 }
11924
11925 fn document_highlights_for_position<'a>(
11926 &'a self,
11927 position: Anchor,
11928 buffer: &'a MultiBufferSnapshot,
11929 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11930 let read_highlights = self
11931 .background_highlights
11932 .get(&TypeId::of::<DocumentHighlightRead>())
11933 .map(|h| &h.1);
11934 let write_highlights = self
11935 .background_highlights
11936 .get(&TypeId::of::<DocumentHighlightWrite>())
11937 .map(|h| &h.1);
11938 let left_position = position.bias_left(buffer);
11939 let right_position = position.bias_right(buffer);
11940 read_highlights
11941 .into_iter()
11942 .chain(write_highlights)
11943 .flat_map(move |ranges| {
11944 let start_ix = match ranges.binary_search_by(|probe| {
11945 let cmp = probe.end.cmp(&left_position, buffer);
11946 if cmp.is_ge() {
11947 Ordering::Greater
11948 } else {
11949 Ordering::Less
11950 }
11951 }) {
11952 Ok(i) | Err(i) => i,
11953 };
11954
11955 ranges[start_ix..]
11956 .iter()
11957 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11958 })
11959 }
11960
11961 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11962 self.background_highlights
11963 .get(&TypeId::of::<T>())
11964 .map_or(false, |(_, highlights)| !highlights.is_empty())
11965 }
11966
11967 pub fn background_highlights_in_range(
11968 &self,
11969 search_range: Range<Anchor>,
11970 display_snapshot: &DisplaySnapshot,
11971 theme: &ThemeColors,
11972 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11973 let mut results = Vec::new();
11974 for (color_fetcher, ranges) in self.background_highlights.values() {
11975 let color = color_fetcher(theme);
11976 let start_ix = match ranges.binary_search_by(|probe| {
11977 let cmp = probe
11978 .end
11979 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11980 if cmp.is_gt() {
11981 Ordering::Greater
11982 } else {
11983 Ordering::Less
11984 }
11985 }) {
11986 Ok(i) | Err(i) => i,
11987 };
11988 for range in &ranges[start_ix..] {
11989 if range
11990 .start
11991 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11992 .is_ge()
11993 {
11994 break;
11995 }
11996
11997 let start = range.start.to_display_point(display_snapshot);
11998 let end = range.end.to_display_point(display_snapshot);
11999 results.push((start..end, color))
12000 }
12001 }
12002 results
12003 }
12004
12005 pub fn background_highlight_row_ranges<T: 'static>(
12006 &self,
12007 search_range: Range<Anchor>,
12008 display_snapshot: &DisplaySnapshot,
12009 count: usize,
12010 ) -> Vec<RangeInclusive<DisplayPoint>> {
12011 let mut results = Vec::new();
12012 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12013 return vec![];
12014 };
12015
12016 let start_ix = match ranges.binary_search_by(|probe| {
12017 let cmp = probe
12018 .end
12019 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12020 if cmp.is_gt() {
12021 Ordering::Greater
12022 } else {
12023 Ordering::Less
12024 }
12025 }) {
12026 Ok(i) | Err(i) => i,
12027 };
12028 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12029 if let (Some(start_display), Some(end_display)) = (start, end) {
12030 results.push(
12031 start_display.to_display_point(display_snapshot)
12032 ..=end_display.to_display_point(display_snapshot),
12033 );
12034 }
12035 };
12036 let mut start_row: Option<Point> = None;
12037 let mut end_row: Option<Point> = None;
12038 if ranges.len() > count {
12039 return Vec::new();
12040 }
12041 for range in &ranges[start_ix..] {
12042 if range
12043 .start
12044 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12045 .is_ge()
12046 {
12047 break;
12048 }
12049 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12050 if let Some(current_row) = &end_row {
12051 if end.row == current_row.row {
12052 continue;
12053 }
12054 }
12055 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12056 if start_row.is_none() {
12057 assert_eq!(end_row, None);
12058 start_row = Some(start);
12059 end_row = Some(end);
12060 continue;
12061 }
12062 if let Some(current_end) = end_row.as_mut() {
12063 if start.row > current_end.row + 1 {
12064 push_region(start_row, end_row);
12065 start_row = Some(start);
12066 end_row = Some(end);
12067 } else {
12068 // Merge two hunks.
12069 *current_end = end;
12070 }
12071 } else {
12072 unreachable!();
12073 }
12074 }
12075 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12076 push_region(start_row, end_row);
12077 results
12078 }
12079
12080 pub fn gutter_highlights_in_range(
12081 &self,
12082 search_range: Range<Anchor>,
12083 display_snapshot: &DisplaySnapshot,
12084 cx: &AppContext,
12085 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12086 let mut results = Vec::new();
12087 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12088 let color = color_fetcher(cx);
12089 let start_ix = match ranges.binary_search_by(|probe| {
12090 let cmp = probe
12091 .end
12092 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12093 if cmp.is_gt() {
12094 Ordering::Greater
12095 } else {
12096 Ordering::Less
12097 }
12098 }) {
12099 Ok(i) | Err(i) => i,
12100 };
12101 for range in &ranges[start_ix..] {
12102 if range
12103 .start
12104 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12105 .is_ge()
12106 {
12107 break;
12108 }
12109
12110 let start = range.start.to_display_point(display_snapshot);
12111 let end = range.end.to_display_point(display_snapshot);
12112 results.push((start..end, color))
12113 }
12114 }
12115 results
12116 }
12117
12118 /// Get the text ranges corresponding to the redaction query
12119 pub fn redacted_ranges(
12120 &self,
12121 search_range: Range<Anchor>,
12122 display_snapshot: &DisplaySnapshot,
12123 cx: &WindowContext,
12124 ) -> Vec<Range<DisplayPoint>> {
12125 display_snapshot
12126 .buffer_snapshot
12127 .redacted_ranges(search_range, |file| {
12128 if let Some(file) = file {
12129 file.is_private()
12130 && EditorSettings::get(
12131 Some(SettingsLocation {
12132 worktree_id: file.worktree_id(cx),
12133 path: file.path().as_ref(),
12134 }),
12135 cx,
12136 )
12137 .redact_private_values
12138 } else {
12139 false
12140 }
12141 })
12142 .map(|range| {
12143 range.start.to_display_point(display_snapshot)
12144 ..range.end.to_display_point(display_snapshot)
12145 })
12146 .collect()
12147 }
12148
12149 pub fn highlight_text<T: 'static>(
12150 &mut self,
12151 ranges: Vec<Range<Anchor>>,
12152 style: HighlightStyle,
12153 cx: &mut ViewContext<Self>,
12154 ) {
12155 self.display_map.update(cx, |map, _| {
12156 map.highlight_text(TypeId::of::<T>(), ranges, style)
12157 });
12158 cx.notify();
12159 }
12160
12161 pub(crate) fn highlight_inlays<T: 'static>(
12162 &mut self,
12163 highlights: Vec<InlayHighlight>,
12164 style: HighlightStyle,
12165 cx: &mut ViewContext<Self>,
12166 ) {
12167 self.display_map.update(cx, |map, _| {
12168 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12169 });
12170 cx.notify();
12171 }
12172
12173 pub fn text_highlights<'a, T: 'static>(
12174 &'a self,
12175 cx: &'a AppContext,
12176 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12177 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12178 }
12179
12180 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12181 let cleared = self
12182 .display_map
12183 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12184 if cleared {
12185 cx.notify();
12186 }
12187 }
12188
12189 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12190 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12191 && self.focus_handle.is_focused(cx)
12192 }
12193
12194 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12195 self.show_cursor_when_unfocused = is_enabled;
12196 cx.notify();
12197 }
12198
12199 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12200 cx.notify();
12201 }
12202
12203 fn on_buffer_event(
12204 &mut self,
12205 multibuffer: Model<MultiBuffer>,
12206 event: &multi_buffer::Event,
12207 cx: &mut ViewContext<Self>,
12208 ) {
12209 match event {
12210 multi_buffer::Event::Edited {
12211 singleton_buffer_edited,
12212 } => {
12213 self.scrollbar_marker_state.dirty = true;
12214 self.active_indent_guides_state.dirty = true;
12215 self.refresh_active_diagnostics(cx);
12216 self.refresh_code_actions(cx);
12217 if self.has_active_inline_completion(cx) {
12218 self.update_visible_inline_completion(cx);
12219 }
12220 cx.emit(EditorEvent::BufferEdited);
12221 cx.emit(SearchEvent::MatchesInvalidated);
12222 if *singleton_buffer_edited {
12223 if let Some(project) = &self.project {
12224 let project = project.read(cx);
12225 #[allow(clippy::mutable_key_type)]
12226 let languages_affected = multibuffer
12227 .read(cx)
12228 .all_buffers()
12229 .into_iter()
12230 .filter_map(|buffer| {
12231 let buffer = buffer.read(cx);
12232 let language = buffer.language()?;
12233 if project.is_local()
12234 && project.language_servers_for_buffer(buffer, cx).count() == 0
12235 {
12236 None
12237 } else {
12238 Some(language)
12239 }
12240 })
12241 .cloned()
12242 .collect::<HashSet<_>>();
12243 if !languages_affected.is_empty() {
12244 self.refresh_inlay_hints(
12245 InlayHintRefreshReason::BufferEdited(languages_affected),
12246 cx,
12247 );
12248 }
12249 }
12250 }
12251
12252 let Some(project) = &self.project else { return };
12253 let (telemetry, is_via_ssh) = {
12254 let project = project.read(cx);
12255 let telemetry = project.client().telemetry().clone();
12256 let is_via_ssh = project.is_via_ssh();
12257 (telemetry, is_via_ssh)
12258 };
12259 refresh_linked_ranges(self, cx);
12260 telemetry.log_edit_event("editor", is_via_ssh);
12261 }
12262 multi_buffer::Event::ExcerptsAdded {
12263 buffer,
12264 predecessor,
12265 excerpts,
12266 } => {
12267 self.tasks_update_task = Some(self.refresh_runnables(cx));
12268 cx.emit(EditorEvent::ExcerptsAdded {
12269 buffer: buffer.clone(),
12270 predecessor: *predecessor,
12271 excerpts: excerpts.clone(),
12272 });
12273 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12274 }
12275 multi_buffer::Event::ExcerptsRemoved { ids } => {
12276 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12277 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12278 }
12279 multi_buffer::Event::ExcerptsEdited { ids } => {
12280 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12281 }
12282 multi_buffer::Event::ExcerptsExpanded { ids } => {
12283 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12284 }
12285 multi_buffer::Event::Reparsed(buffer_id) => {
12286 self.tasks_update_task = Some(self.refresh_runnables(cx));
12287
12288 cx.emit(EditorEvent::Reparsed(*buffer_id));
12289 }
12290 multi_buffer::Event::LanguageChanged(buffer_id) => {
12291 linked_editing_ranges::refresh_linked_ranges(self, cx);
12292 cx.emit(EditorEvent::Reparsed(*buffer_id));
12293 cx.notify();
12294 }
12295 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12296 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12297 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12298 cx.emit(EditorEvent::TitleChanged)
12299 }
12300 multi_buffer::Event::DiffBaseChanged => {
12301 self.scrollbar_marker_state.dirty = true;
12302 cx.emit(EditorEvent::DiffBaseChanged);
12303 cx.notify();
12304 }
12305 multi_buffer::Event::DiffUpdated { buffer } => {
12306 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12307 cx.notify();
12308 }
12309 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12310 multi_buffer::Event::DiagnosticsUpdated => {
12311 self.refresh_active_diagnostics(cx);
12312 self.scrollbar_marker_state.dirty = true;
12313 cx.notify();
12314 }
12315 _ => {}
12316 };
12317 }
12318
12319 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12320 cx.notify();
12321 }
12322
12323 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12324 self.tasks_update_task = Some(self.refresh_runnables(cx));
12325 self.refresh_inline_completion(true, false, cx);
12326 self.refresh_inlay_hints(
12327 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12328 self.selections.newest_anchor().head(),
12329 &self.buffer.read(cx).snapshot(cx),
12330 cx,
12331 )),
12332 cx,
12333 );
12334
12335 let old_cursor_shape = self.cursor_shape;
12336
12337 {
12338 let editor_settings = EditorSettings::get_global(cx);
12339 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12340 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12341 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12342 }
12343
12344 if old_cursor_shape != self.cursor_shape {
12345 cx.emit(EditorEvent::CursorShapeChanged);
12346 }
12347
12348 let project_settings = ProjectSettings::get_global(cx);
12349 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12350
12351 if self.mode == EditorMode::Full {
12352 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12353 if self.git_blame_inline_enabled != inline_blame_enabled {
12354 self.toggle_git_blame_inline_internal(false, cx);
12355 }
12356 }
12357
12358 cx.notify();
12359 }
12360
12361 pub fn set_searchable(&mut self, searchable: bool) {
12362 self.searchable = searchable;
12363 }
12364
12365 pub fn searchable(&self) -> bool {
12366 self.searchable
12367 }
12368
12369 fn open_proposed_changes_editor(
12370 &mut self,
12371 _: &OpenProposedChangesEditor,
12372 cx: &mut ViewContext<Self>,
12373 ) {
12374 let Some(workspace) = self.workspace() else {
12375 cx.propagate();
12376 return;
12377 };
12378
12379 let buffer = self.buffer.read(cx);
12380 let mut new_selections_by_buffer = HashMap::default();
12381 for selection in self.selections.all::<usize>(cx) {
12382 for (buffer, range, _) in
12383 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12384 {
12385 let mut range = range.to_point(buffer.read(cx));
12386 range.start.column = 0;
12387 range.end.column = buffer.read(cx).line_len(range.end.row);
12388 new_selections_by_buffer
12389 .entry(buffer)
12390 .or_insert(Vec::new())
12391 .push(range)
12392 }
12393 }
12394
12395 let proposed_changes_buffers = new_selections_by_buffer
12396 .into_iter()
12397 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12398 .collect::<Vec<_>>();
12399 let proposed_changes_editor = cx.new_view(|cx| {
12400 ProposedChangesEditor::new(
12401 "Proposed changes",
12402 proposed_changes_buffers,
12403 self.project.clone(),
12404 cx,
12405 )
12406 });
12407
12408 cx.window_context().defer(move |cx| {
12409 workspace.update(cx, |workspace, cx| {
12410 workspace.active_pane().update(cx, |pane, cx| {
12411 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12412 });
12413 });
12414 });
12415 }
12416
12417 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12418 self.open_excerpts_common(true, cx)
12419 }
12420
12421 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12422 self.open_excerpts_common(false, cx)
12423 }
12424
12425 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12426 let buffer = self.buffer.read(cx);
12427 if buffer.is_singleton() {
12428 cx.propagate();
12429 return;
12430 }
12431
12432 let Some(workspace) = self.workspace() else {
12433 cx.propagate();
12434 return;
12435 };
12436
12437 let mut new_selections_by_buffer = HashMap::default();
12438 for selection in self.selections.all::<usize>(cx) {
12439 for (mut buffer_handle, mut range, _) in
12440 buffer.range_to_buffer_ranges(selection.range(), cx)
12441 {
12442 // When editing branch buffers, jump to the corresponding location
12443 // in their base buffer.
12444 let buffer = buffer_handle.read(cx);
12445 if let Some(base_buffer) = buffer.diff_base_buffer() {
12446 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12447 buffer_handle = base_buffer;
12448 }
12449
12450 if selection.reversed {
12451 mem::swap(&mut range.start, &mut range.end);
12452 }
12453 new_selections_by_buffer
12454 .entry(buffer_handle)
12455 .or_insert(Vec::new())
12456 .push(range)
12457 }
12458 }
12459
12460 // We defer the pane interaction because we ourselves are a workspace item
12461 // and activating a new item causes the pane to call a method on us reentrantly,
12462 // which panics if we're on the stack.
12463 cx.window_context().defer(move |cx| {
12464 workspace.update(cx, |workspace, cx| {
12465 let pane = if split {
12466 workspace.adjacent_pane(cx)
12467 } else {
12468 workspace.active_pane().clone()
12469 };
12470
12471 for (buffer, ranges) in new_selections_by_buffer {
12472 let editor =
12473 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12474 editor.update(cx, |editor, cx| {
12475 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12476 s.select_ranges(ranges);
12477 });
12478 });
12479 }
12480 })
12481 });
12482 }
12483
12484 fn jump(
12485 &mut self,
12486 path: ProjectPath,
12487 position: Point,
12488 anchor: language::Anchor,
12489 offset_from_top: u32,
12490 cx: &mut ViewContext<Self>,
12491 ) {
12492 let workspace = self.workspace();
12493 cx.spawn(|_, mut cx| async move {
12494 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12495 let editor = workspace.update(&mut cx, |workspace, cx| {
12496 // Reset the preview item id before opening the new item
12497 workspace.active_pane().update(cx, |pane, cx| {
12498 pane.set_preview_item_id(None, cx);
12499 });
12500 workspace.open_path_preview(path, None, true, true, cx)
12501 })?;
12502 let editor = editor
12503 .await?
12504 .downcast::<Editor>()
12505 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12506 .downgrade();
12507 editor.update(&mut cx, |editor, cx| {
12508 let buffer = editor
12509 .buffer()
12510 .read(cx)
12511 .as_singleton()
12512 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12513 let buffer = buffer.read(cx);
12514 let cursor = if buffer.can_resolve(&anchor) {
12515 language::ToPoint::to_point(&anchor, buffer)
12516 } else {
12517 buffer.clip_point(position, Bias::Left)
12518 };
12519
12520 let nav_history = editor.nav_history.take();
12521 editor.change_selections(
12522 Some(Autoscroll::top_relative(offset_from_top as usize)),
12523 cx,
12524 |s| {
12525 s.select_ranges([cursor..cursor]);
12526 },
12527 );
12528 editor.nav_history = nav_history;
12529
12530 anyhow::Ok(())
12531 })??;
12532
12533 anyhow::Ok(())
12534 })
12535 .detach_and_log_err(cx);
12536 }
12537
12538 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12539 let snapshot = self.buffer.read(cx).read(cx);
12540 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12541 Some(
12542 ranges
12543 .iter()
12544 .map(move |range| {
12545 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12546 })
12547 .collect(),
12548 )
12549 }
12550
12551 fn selection_replacement_ranges(
12552 &self,
12553 range: Range<OffsetUtf16>,
12554 cx: &AppContext,
12555 ) -> Vec<Range<OffsetUtf16>> {
12556 let selections = self.selections.all::<OffsetUtf16>(cx);
12557 let newest_selection = selections
12558 .iter()
12559 .max_by_key(|selection| selection.id)
12560 .unwrap();
12561 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12562 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12563 let snapshot = self.buffer.read(cx).read(cx);
12564 selections
12565 .into_iter()
12566 .map(|mut selection| {
12567 selection.start.0 =
12568 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12569 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12570 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12571 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12572 })
12573 .collect()
12574 }
12575
12576 fn report_editor_event(
12577 &self,
12578 operation: &'static str,
12579 file_extension: Option<String>,
12580 cx: &AppContext,
12581 ) {
12582 if cfg!(any(test, feature = "test-support")) {
12583 return;
12584 }
12585
12586 let Some(project) = &self.project else { return };
12587
12588 // If None, we are in a file without an extension
12589 let file = self
12590 .buffer
12591 .read(cx)
12592 .as_singleton()
12593 .and_then(|b| b.read(cx).file());
12594 let file_extension = file_extension.or(file
12595 .as_ref()
12596 .and_then(|file| Path::new(file.file_name(cx)).extension())
12597 .and_then(|e| e.to_str())
12598 .map(|a| a.to_string()));
12599
12600 let vim_mode = cx
12601 .global::<SettingsStore>()
12602 .raw_user_settings()
12603 .get("vim_mode")
12604 == Some(&serde_json::Value::Bool(true));
12605
12606 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12607 == language::language_settings::InlineCompletionProvider::Copilot;
12608 let copilot_enabled_for_language = self
12609 .buffer
12610 .read(cx)
12611 .settings_at(0, cx)
12612 .show_inline_completions;
12613
12614 let project = project.read(cx);
12615 let telemetry = project.client().telemetry().clone();
12616 telemetry.report_editor_event(
12617 file_extension,
12618 vim_mode,
12619 operation,
12620 copilot_enabled,
12621 copilot_enabled_for_language,
12622 project.is_via_ssh(),
12623 )
12624 }
12625
12626 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12627 /// with each line being an array of {text, highlight} objects.
12628 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12629 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12630 return;
12631 };
12632
12633 #[derive(Serialize)]
12634 struct Chunk<'a> {
12635 text: String,
12636 highlight: Option<&'a str>,
12637 }
12638
12639 let snapshot = buffer.read(cx).snapshot();
12640 let range = self
12641 .selected_text_range(false, cx)
12642 .and_then(|selection| {
12643 if selection.range.is_empty() {
12644 None
12645 } else {
12646 Some(selection.range)
12647 }
12648 })
12649 .unwrap_or_else(|| 0..snapshot.len());
12650
12651 let chunks = snapshot.chunks(range, true);
12652 let mut lines = Vec::new();
12653 let mut line: VecDeque<Chunk> = VecDeque::new();
12654
12655 let Some(style) = self.style.as_ref() else {
12656 return;
12657 };
12658
12659 for chunk in chunks {
12660 let highlight = chunk
12661 .syntax_highlight_id
12662 .and_then(|id| id.name(&style.syntax));
12663 let mut chunk_lines = chunk.text.split('\n').peekable();
12664 while let Some(text) = chunk_lines.next() {
12665 let mut merged_with_last_token = false;
12666 if let Some(last_token) = line.back_mut() {
12667 if last_token.highlight == highlight {
12668 last_token.text.push_str(text);
12669 merged_with_last_token = true;
12670 }
12671 }
12672
12673 if !merged_with_last_token {
12674 line.push_back(Chunk {
12675 text: text.into(),
12676 highlight,
12677 });
12678 }
12679
12680 if chunk_lines.peek().is_some() {
12681 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12682 line.pop_front();
12683 }
12684 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12685 line.pop_back();
12686 }
12687
12688 lines.push(mem::take(&mut line));
12689 }
12690 }
12691 }
12692
12693 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12694 return;
12695 };
12696 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12697 }
12698
12699 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12700 &self.inlay_hint_cache
12701 }
12702
12703 pub fn replay_insert_event(
12704 &mut self,
12705 text: &str,
12706 relative_utf16_range: Option<Range<isize>>,
12707 cx: &mut ViewContext<Self>,
12708 ) {
12709 if !self.input_enabled {
12710 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12711 return;
12712 }
12713 if let Some(relative_utf16_range) = relative_utf16_range {
12714 let selections = self.selections.all::<OffsetUtf16>(cx);
12715 self.change_selections(None, cx, |s| {
12716 let new_ranges = selections.into_iter().map(|range| {
12717 let start = OffsetUtf16(
12718 range
12719 .head()
12720 .0
12721 .saturating_add_signed(relative_utf16_range.start),
12722 );
12723 let end = OffsetUtf16(
12724 range
12725 .head()
12726 .0
12727 .saturating_add_signed(relative_utf16_range.end),
12728 );
12729 start..end
12730 });
12731 s.select_ranges(new_ranges);
12732 });
12733 }
12734
12735 self.handle_input(text, cx);
12736 }
12737
12738 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12739 let Some(provider) = self.semantics_provider.as_ref() else {
12740 return false;
12741 };
12742
12743 let mut supports = false;
12744 self.buffer().read(cx).for_each_buffer(|buffer| {
12745 supports |= provider.supports_inlay_hints(buffer, cx);
12746 });
12747 supports
12748 }
12749
12750 pub fn focus(&self, cx: &mut WindowContext) {
12751 cx.focus(&self.focus_handle)
12752 }
12753
12754 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12755 self.focus_handle.is_focused(cx)
12756 }
12757
12758 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12759 cx.emit(EditorEvent::Focused);
12760
12761 if let Some(descendant) = self
12762 .last_focused_descendant
12763 .take()
12764 .and_then(|descendant| descendant.upgrade())
12765 {
12766 cx.focus(&descendant);
12767 } else {
12768 if let Some(blame) = self.blame.as_ref() {
12769 blame.update(cx, GitBlame::focus)
12770 }
12771
12772 self.blink_manager.update(cx, BlinkManager::enable);
12773 self.show_cursor_names(cx);
12774 self.buffer.update(cx, |buffer, cx| {
12775 buffer.finalize_last_transaction(cx);
12776 if self.leader_peer_id.is_none() {
12777 buffer.set_active_selections(
12778 &self.selections.disjoint_anchors(),
12779 self.selections.line_mode,
12780 self.cursor_shape,
12781 cx,
12782 );
12783 }
12784 });
12785 }
12786 }
12787
12788 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12789 cx.emit(EditorEvent::FocusedIn)
12790 }
12791
12792 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12793 if event.blurred != self.focus_handle {
12794 self.last_focused_descendant = Some(event.blurred);
12795 }
12796 }
12797
12798 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12799 self.blink_manager.update(cx, BlinkManager::disable);
12800 self.buffer
12801 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12802
12803 if let Some(blame) = self.blame.as_ref() {
12804 blame.update(cx, GitBlame::blur)
12805 }
12806 if !self.hover_state.focused(cx) {
12807 hide_hover(self, cx);
12808 }
12809
12810 self.hide_context_menu(cx);
12811 cx.emit(EditorEvent::Blurred);
12812 cx.notify();
12813 }
12814
12815 pub fn register_action<A: Action>(
12816 &mut self,
12817 listener: impl Fn(&A, &mut WindowContext) + 'static,
12818 ) -> Subscription {
12819 let id = self.next_editor_action_id.post_inc();
12820 let listener = Arc::new(listener);
12821 self.editor_actions.borrow_mut().insert(
12822 id,
12823 Box::new(move |cx| {
12824 let cx = cx.window_context();
12825 let listener = listener.clone();
12826 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12827 let action = action.downcast_ref().unwrap();
12828 if phase == DispatchPhase::Bubble {
12829 listener(action, cx)
12830 }
12831 })
12832 }),
12833 );
12834
12835 let editor_actions = self.editor_actions.clone();
12836 Subscription::new(move || {
12837 editor_actions.borrow_mut().remove(&id);
12838 })
12839 }
12840
12841 pub fn file_header_size(&self) -> u32 {
12842 FILE_HEADER_HEIGHT
12843 }
12844
12845 pub fn revert(
12846 &mut self,
12847 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12848 cx: &mut ViewContext<Self>,
12849 ) {
12850 self.buffer().update(cx, |multi_buffer, cx| {
12851 for (buffer_id, changes) in revert_changes {
12852 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12853 buffer.update(cx, |buffer, cx| {
12854 buffer.edit(
12855 changes.into_iter().map(|(range, text)| {
12856 (range, text.to_string().map(Arc::<str>::from))
12857 }),
12858 None,
12859 cx,
12860 );
12861 });
12862 }
12863 }
12864 });
12865 self.change_selections(None, cx, |selections| selections.refresh());
12866 }
12867
12868 pub fn to_pixel_point(
12869 &mut self,
12870 source: multi_buffer::Anchor,
12871 editor_snapshot: &EditorSnapshot,
12872 cx: &mut ViewContext<Self>,
12873 ) -> Option<gpui::Point<Pixels>> {
12874 let source_point = source.to_display_point(editor_snapshot);
12875 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12876 }
12877
12878 pub fn display_to_pixel_point(
12879 &mut self,
12880 source: DisplayPoint,
12881 editor_snapshot: &EditorSnapshot,
12882 cx: &mut ViewContext<Self>,
12883 ) -> Option<gpui::Point<Pixels>> {
12884 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12885 let text_layout_details = self.text_layout_details(cx);
12886 let scroll_top = text_layout_details
12887 .scroll_anchor
12888 .scroll_position(editor_snapshot)
12889 .y;
12890
12891 if source.row().as_f32() < scroll_top.floor() {
12892 return None;
12893 }
12894 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12895 let source_y = line_height * (source.row().as_f32() - scroll_top);
12896 Some(gpui::Point::new(source_x, source_y))
12897 }
12898
12899 pub fn has_active_completions_menu(&self) -> bool {
12900 self.context_menu.read().as_ref().map_or(false, |menu| {
12901 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12902 })
12903 }
12904
12905 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12906 self.addons
12907 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12908 }
12909
12910 pub fn unregister_addon<T: Addon>(&mut self) {
12911 self.addons.remove(&std::any::TypeId::of::<T>());
12912 }
12913
12914 pub fn addon<T: Addon>(&self) -> Option<&T> {
12915 let type_id = std::any::TypeId::of::<T>();
12916 self.addons
12917 .get(&type_id)
12918 .and_then(|item| item.to_any().downcast_ref::<T>())
12919 }
12920}
12921
12922fn hunks_for_selections(
12923 multi_buffer_snapshot: &MultiBufferSnapshot,
12924 selections: &[Selection<Anchor>],
12925) -> Vec<MultiBufferDiffHunk> {
12926 let buffer_rows_for_selections = selections.iter().map(|selection| {
12927 let head = selection.head();
12928 let tail = selection.tail();
12929 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12930 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12931 if start > end {
12932 end..start
12933 } else {
12934 start..end
12935 }
12936 });
12937
12938 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12939}
12940
12941pub fn hunks_for_rows(
12942 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12943 multi_buffer_snapshot: &MultiBufferSnapshot,
12944) -> Vec<MultiBufferDiffHunk> {
12945 let mut hunks = Vec::new();
12946 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12947 HashMap::default();
12948 for selected_multi_buffer_rows in rows {
12949 let query_rows =
12950 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12951 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12952 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12953 // when the caret is just above or just below the deleted hunk.
12954 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12955 let related_to_selection = if allow_adjacent {
12956 hunk.row_range.overlaps(&query_rows)
12957 || hunk.row_range.start == query_rows.end
12958 || hunk.row_range.end == query_rows.start
12959 } else {
12960 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12961 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12962 hunk.row_range.overlaps(&selected_multi_buffer_rows)
12963 || selected_multi_buffer_rows.end == hunk.row_range.start
12964 };
12965 if related_to_selection {
12966 if !processed_buffer_rows
12967 .entry(hunk.buffer_id)
12968 .or_default()
12969 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12970 {
12971 continue;
12972 }
12973 hunks.push(hunk);
12974 }
12975 }
12976 }
12977
12978 hunks
12979}
12980
12981pub trait CollaborationHub {
12982 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12983 fn user_participant_indices<'a>(
12984 &self,
12985 cx: &'a AppContext,
12986 ) -> &'a HashMap<u64, ParticipantIndex>;
12987 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12988}
12989
12990impl CollaborationHub for Model<Project> {
12991 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12992 self.read(cx).collaborators()
12993 }
12994
12995 fn user_participant_indices<'a>(
12996 &self,
12997 cx: &'a AppContext,
12998 ) -> &'a HashMap<u64, ParticipantIndex> {
12999 self.read(cx).user_store().read(cx).participant_indices()
13000 }
13001
13002 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13003 let this = self.read(cx);
13004 let user_ids = this.collaborators().values().map(|c| c.user_id);
13005 this.user_store().read_with(cx, |user_store, cx| {
13006 user_store.participant_names(user_ids, cx)
13007 })
13008 }
13009}
13010
13011pub trait SemanticsProvider {
13012 fn hover(
13013 &self,
13014 buffer: &Model<Buffer>,
13015 position: text::Anchor,
13016 cx: &mut AppContext,
13017 ) -> Option<Task<Vec<project::Hover>>>;
13018
13019 fn inlay_hints(
13020 &self,
13021 buffer_handle: Model<Buffer>,
13022 range: Range<text::Anchor>,
13023 cx: &mut AppContext,
13024 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13025
13026 fn resolve_inlay_hint(
13027 &self,
13028 hint: InlayHint,
13029 buffer_handle: Model<Buffer>,
13030 server_id: LanguageServerId,
13031 cx: &mut AppContext,
13032 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13033
13034 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13035
13036 fn document_highlights(
13037 &self,
13038 buffer: &Model<Buffer>,
13039 position: text::Anchor,
13040 cx: &mut AppContext,
13041 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13042
13043 fn definitions(
13044 &self,
13045 buffer: &Model<Buffer>,
13046 position: text::Anchor,
13047 kind: GotoDefinitionKind,
13048 cx: &mut AppContext,
13049 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13050
13051 fn range_for_rename(
13052 &self,
13053 buffer: &Model<Buffer>,
13054 position: text::Anchor,
13055 cx: &mut AppContext,
13056 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13057
13058 fn perform_rename(
13059 &self,
13060 buffer: &Model<Buffer>,
13061 position: text::Anchor,
13062 new_name: String,
13063 cx: &mut AppContext,
13064 ) -> Option<Task<Result<ProjectTransaction>>>;
13065}
13066
13067pub trait CompletionProvider {
13068 fn completions(
13069 &self,
13070 buffer: &Model<Buffer>,
13071 buffer_position: text::Anchor,
13072 trigger: CompletionContext,
13073 cx: &mut ViewContext<Editor>,
13074 ) -> Task<Result<Vec<Completion>>>;
13075
13076 fn resolve_completions(
13077 &self,
13078 buffer: Model<Buffer>,
13079 completion_indices: Vec<usize>,
13080 completions: Arc<RwLock<Box<[Completion]>>>,
13081 cx: &mut ViewContext<Editor>,
13082 ) -> Task<Result<bool>>;
13083
13084 fn apply_additional_edits_for_completion(
13085 &self,
13086 buffer: Model<Buffer>,
13087 completion: Completion,
13088 push_to_history: bool,
13089 cx: &mut ViewContext<Editor>,
13090 ) -> Task<Result<Option<language::Transaction>>>;
13091
13092 fn is_completion_trigger(
13093 &self,
13094 buffer: &Model<Buffer>,
13095 position: language::Anchor,
13096 text: &str,
13097 trigger_in_words: bool,
13098 cx: &mut ViewContext<Editor>,
13099 ) -> bool;
13100
13101 fn sort_completions(&self) -> bool {
13102 true
13103 }
13104}
13105
13106pub trait CodeActionProvider {
13107 fn code_actions(
13108 &self,
13109 buffer: &Model<Buffer>,
13110 range: Range<text::Anchor>,
13111 cx: &mut WindowContext,
13112 ) -> Task<Result<Vec<CodeAction>>>;
13113
13114 fn apply_code_action(
13115 &self,
13116 buffer_handle: Model<Buffer>,
13117 action: CodeAction,
13118 excerpt_id: ExcerptId,
13119 push_to_history: bool,
13120 cx: &mut WindowContext,
13121 ) -> Task<Result<ProjectTransaction>>;
13122}
13123
13124impl CodeActionProvider for Model<Project> {
13125 fn code_actions(
13126 &self,
13127 buffer: &Model<Buffer>,
13128 range: Range<text::Anchor>,
13129 cx: &mut WindowContext,
13130 ) -> Task<Result<Vec<CodeAction>>> {
13131 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13132 }
13133
13134 fn apply_code_action(
13135 &self,
13136 buffer_handle: Model<Buffer>,
13137 action: CodeAction,
13138 _excerpt_id: ExcerptId,
13139 push_to_history: bool,
13140 cx: &mut WindowContext,
13141 ) -> Task<Result<ProjectTransaction>> {
13142 self.update(cx, |project, cx| {
13143 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13144 })
13145 }
13146}
13147
13148fn snippet_completions(
13149 project: &Project,
13150 buffer: &Model<Buffer>,
13151 buffer_position: text::Anchor,
13152 cx: &mut AppContext,
13153) -> Vec<Completion> {
13154 let language = buffer.read(cx).language_at(buffer_position);
13155 let language_name = language.as_ref().map(|language| language.lsp_id());
13156 let snippet_store = project.snippets().read(cx);
13157 let snippets = snippet_store.snippets_for(language_name, cx);
13158
13159 if snippets.is_empty() {
13160 return vec![];
13161 }
13162 let snapshot = buffer.read(cx).text_snapshot();
13163 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13164
13165 let scope = language.map(|language| language.default_scope());
13166 let classifier = CharClassifier::new(scope).for_completion(true);
13167 let mut last_word = chars
13168 .take_while(|c| classifier.is_word(*c))
13169 .collect::<String>();
13170 last_word = last_word.chars().rev().collect();
13171 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13172 let to_lsp = |point: &text::Anchor| {
13173 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13174 point_to_lsp(end)
13175 };
13176 let lsp_end = to_lsp(&buffer_position);
13177 snippets
13178 .into_iter()
13179 .filter_map(|snippet| {
13180 let matching_prefix = snippet
13181 .prefix
13182 .iter()
13183 .find(|prefix| prefix.starts_with(&last_word))?;
13184 let start = as_offset - last_word.len();
13185 let start = snapshot.anchor_before(start);
13186 let range = start..buffer_position;
13187 let lsp_start = to_lsp(&start);
13188 let lsp_range = lsp::Range {
13189 start: lsp_start,
13190 end: lsp_end,
13191 };
13192 Some(Completion {
13193 old_range: range,
13194 new_text: snippet.body.clone(),
13195 label: CodeLabel {
13196 text: matching_prefix.clone(),
13197 runs: vec![],
13198 filter_range: 0..matching_prefix.len(),
13199 },
13200 server_id: LanguageServerId(usize::MAX),
13201 documentation: snippet.description.clone().map(Documentation::SingleLine),
13202 lsp_completion: lsp::CompletionItem {
13203 label: snippet.prefix.first().unwrap().clone(),
13204 kind: Some(CompletionItemKind::SNIPPET),
13205 label_details: snippet.description.as_ref().map(|description| {
13206 lsp::CompletionItemLabelDetails {
13207 detail: Some(description.clone()),
13208 description: None,
13209 }
13210 }),
13211 insert_text_format: Some(InsertTextFormat::SNIPPET),
13212 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13213 lsp::InsertReplaceEdit {
13214 new_text: snippet.body.clone(),
13215 insert: lsp_range,
13216 replace: lsp_range,
13217 },
13218 )),
13219 filter_text: Some(snippet.body.clone()),
13220 sort_text: Some(char::MAX.to_string()),
13221 ..Default::default()
13222 },
13223 confirm: None,
13224 })
13225 })
13226 .collect()
13227}
13228
13229impl CompletionProvider for Model<Project> {
13230 fn completions(
13231 &self,
13232 buffer: &Model<Buffer>,
13233 buffer_position: text::Anchor,
13234 options: CompletionContext,
13235 cx: &mut ViewContext<Editor>,
13236 ) -> Task<Result<Vec<Completion>>> {
13237 self.update(cx, |project, cx| {
13238 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13239 let project_completions = project.completions(buffer, buffer_position, options, cx);
13240 cx.background_executor().spawn(async move {
13241 let mut completions = project_completions.await?;
13242 //let snippets = snippets.into_iter().;
13243 completions.extend(snippets);
13244 Ok(completions)
13245 })
13246 })
13247 }
13248
13249 fn resolve_completions(
13250 &self,
13251 buffer: Model<Buffer>,
13252 completion_indices: Vec<usize>,
13253 completions: Arc<RwLock<Box<[Completion]>>>,
13254 cx: &mut ViewContext<Editor>,
13255 ) -> Task<Result<bool>> {
13256 self.update(cx, |project, cx| {
13257 project.resolve_completions(buffer, completion_indices, completions, cx)
13258 })
13259 }
13260
13261 fn apply_additional_edits_for_completion(
13262 &self,
13263 buffer: Model<Buffer>,
13264 completion: Completion,
13265 push_to_history: bool,
13266 cx: &mut ViewContext<Editor>,
13267 ) -> Task<Result<Option<language::Transaction>>> {
13268 self.update(cx, |project, cx| {
13269 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13270 })
13271 }
13272
13273 fn is_completion_trigger(
13274 &self,
13275 buffer: &Model<Buffer>,
13276 position: language::Anchor,
13277 text: &str,
13278 trigger_in_words: bool,
13279 cx: &mut ViewContext<Editor>,
13280 ) -> bool {
13281 if !EditorSettings::get_global(cx).show_completions_on_input {
13282 return false;
13283 }
13284
13285 let mut chars = text.chars();
13286 let char = if let Some(char) = chars.next() {
13287 char
13288 } else {
13289 return false;
13290 };
13291 if chars.next().is_some() {
13292 return false;
13293 }
13294
13295 let buffer = buffer.read(cx);
13296 let classifier = buffer
13297 .snapshot()
13298 .char_classifier_at(position)
13299 .for_completion(true);
13300 if trigger_in_words && classifier.is_word(char) {
13301 return true;
13302 }
13303
13304 buffer
13305 .completion_triggers()
13306 .iter()
13307 .any(|string| string == text)
13308 }
13309}
13310
13311impl SemanticsProvider for Model<Project> {
13312 fn hover(
13313 &self,
13314 buffer: &Model<Buffer>,
13315 position: text::Anchor,
13316 cx: &mut AppContext,
13317 ) -> Option<Task<Vec<project::Hover>>> {
13318 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13319 }
13320
13321 fn document_highlights(
13322 &self,
13323 buffer: &Model<Buffer>,
13324 position: text::Anchor,
13325 cx: &mut AppContext,
13326 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13327 Some(self.update(cx, |project, cx| {
13328 project.document_highlights(buffer, position, cx)
13329 }))
13330 }
13331
13332 fn definitions(
13333 &self,
13334 buffer: &Model<Buffer>,
13335 position: text::Anchor,
13336 kind: GotoDefinitionKind,
13337 cx: &mut AppContext,
13338 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13339 Some(self.update(cx, |project, cx| match kind {
13340 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13341 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13342 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13343 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13344 }))
13345 }
13346
13347 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13348 // TODO: make this work for remote projects
13349 self.read(cx)
13350 .language_servers_for_buffer(buffer.read(cx), cx)
13351 .any(
13352 |(_, server)| match server.capabilities().inlay_hint_provider {
13353 Some(lsp::OneOf::Left(enabled)) => enabled,
13354 Some(lsp::OneOf::Right(_)) => true,
13355 None => false,
13356 },
13357 )
13358 }
13359
13360 fn inlay_hints(
13361 &self,
13362 buffer_handle: Model<Buffer>,
13363 range: Range<text::Anchor>,
13364 cx: &mut AppContext,
13365 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13366 Some(self.update(cx, |project, cx| {
13367 project.inlay_hints(buffer_handle, range, cx)
13368 }))
13369 }
13370
13371 fn resolve_inlay_hint(
13372 &self,
13373 hint: InlayHint,
13374 buffer_handle: Model<Buffer>,
13375 server_id: LanguageServerId,
13376 cx: &mut AppContext,
13377 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13378 Some(self.update(cx, |project, cx| {
13379 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13380 }))
13381 }
13382
13383 fn range_for_rename(
13384 &self,
13385 buffer: &Model<Buffer>,
13386 position: text::Anchor,
13387 cx: &mut AppContext,
13388 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13389 Some(self.update(cx, |project, cx| {
13390 project.prepare_rename(buffer.clone(), position, cx)
13391 }))
13392 }
13393
13394 fn perform_rename(
13395 &self,
13396 buffer: &Model<Buffer>,
13397 position: text::Anchor,
13398 new_name: String,
13399 cx: &mut AppContext,
13400 ) -> Option<Task<Result<ProjectTransaction>>> {
13401 Some(self.update(cx, |project, cx| {
13402 project.perform_rename(buffer.clone(), position, new_name, cx)
13403 }))
13404 }
13405}
13406
13407fn inlay_hint_settings(
13408 location: Anchor,
13409 snapshot: &MultiBufferSnapshot,
13410 cx: &mut ViewContext<'_, Editor>,
13411) -> InlayHintSettings {
13412 let file = snapshot.file_at(location);
13413 let language = snapshot.language_at(location).map(|l| l.name());
13414 language_settings(language, file, cx).inlay_hints
13415}
13416
13417fn consume_contiguous_rows(
13418 contiguous_row_selections: &mut Vec<Selection<Point>>,
13419 selection: &Selection<Point>,
13420 display_map: &DisplaySnapshot,
13421 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13422) -> (MultiBufferRow, MultiBufferRow) {
13423 contiguous_row_selections.push(selection.clone());
13424 let start_row = MultiBufferRow(selection.start.row);
13425 let mut end_row = ending_row(selection, display_map);
13426
13427 while let Some(next_selection) = selections.peek() {
13428 if next_selection.start.row <= end_row.0 {
13429 end_row = ending_row(next_selection, display_map);
13430 contiguous_row_selections.push(selections.next().unwrap().clone());
13431 } else {
13432 break;
13433 }
13434 }
13435 (start_row, end_row)
13436}
13437
13438fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13439 if next_selection.end.column > 0 || next_selection.is_empty() {
13440 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13441 } else {
13442 MultiBufferRow(next_selection.end.row)
13443 }
13444}
13445
13446impl EditorSnapshot {
13447 pub fn remote_selections_in_range<'a>(
13448 &'a self,
13449 range: &'a Range<Anchor>,
13450 collaboration_hub: &dyn CollaborationHub,
13451 cx: &'a AppContext,
13452 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13453 let participant_names = collaboration_hub.user_names(cx);
13454 let participant_indices = collaboration_hub.user_participant_indices(cx);
13455 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13456 let collaborators_by_replica_id = collaborators_by_peer_id
13457 .iter()
13458 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13459 .collect::<HashMap<_, _>>();
13460 self.buffer_snapshot
13461 .selections_in_range(range, false)
13462 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13463 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13464 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13465 let user_name = participant_names.get(&collaborator.user_id).cloned();
13466 Some(RemoteSelection {
13467 replica_id,
13468 selection,
13469 cursor_shape,
13470 line_mode,
13471 participant_index,
13472 peer_id: collaborator.peer_id,
13473 user_name,
13474 })
13475 })
13476 }
13477
13478 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13479 self.display_snapshot.buffer_snapshot.language_at(position)
13480 }
13481
13482 pub fn is_focused(&self) -> bool {
13483 self.is_focused
13484 }
13485
13486 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13487 self.placeholder_text.as_ref()
13488 }
13489
13490 pub fn scroll_position(&self) -> gpui::Point<f32> {
13491 self.scroll_anchor.scroll_position(&self.display_snapshot)
13492 }
13493
13494 fn gutter_dimensions(
13495 &self,
13496 font_id: FontId,
13497 font_size: Pixels,
13498 em_width: Pixels,
13499 em_advance: Pixels,
13500 max_line_number_width: Pixels,
13501 cx: &AppContext,
13502 ) -> GutterDimensions {
13503 if !self.show_gutter {
13504 return GutterDimensions::default();
13505 }
13506 let descent = cx.text_system().descent(font_id, font_size);
13507
13508 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13509 matches!(
13510 ProjectSettings::get_global(cx).git.git_gutter,
13511 Some(GitGutterSetting::TrackedFiles)
13512 )
13513 });
13514 let gutter_settings = EditorSettings::get_global(cx).gutter;
13515 let show_line_numbers = self
13516 .show_line_numbers
13517 .unwrap_or(gutter_settings.line_numbers);
13518 let line_gutter_width = if show_line_numbers {
13519 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13520 let min_width_for_number_on_gutter = em_advance * 4.0;
13521 max_line_number_width.max(min_width_for_number_on_gutter)
13522 } else {
13523 0.0.into()
13524 };
13525
13526 let show_code_actions = self
13527 .show_code_actions
13528 .unwrap_or(gutter_settings.code_actions);
13529
13530 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13531
13532 let git_blame_entries_width =
13533 self.git_blame_gutter_max_author_length
13534 .map(|max_author_length| {
13535 // Length of the author name, but also space for the commit hash,
13536 // the spacing and the timestamp.
13537 let max_char_count = max_author_length
13538 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13539 + 7 // length of commit sha
13540 + 14 // length of max relative timestamp ("60 minutes ago")
13541 + 4; // gaps and margins
13542
13543 em_advance * max_char_count
13544 });
13545
13546 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13547 left_padding += if show_code_actions || show_runnables {
13548 em_width * 3.0
13549 } else if show_git_gutter && show_line_numbers {
13550 em_width * 2.0
13551 } else if show_git_gutter || show_line_numbers {
13552 em_width
13553 } else {
13554 px(0.)
13555 };
13556
13557 let right_padding = if gutter_settings.folds && show_line_numbers {
13558 em_width * 4.0
13559 } else if gutter_settings.folds {
13560 em_width * 3.0
13561 } else if show_line_numbers {
13562 em_width
13563 } else {
13564 px(0.)
13565 };
13566
13567 GutterDimensions {
13568 left_padding,
13569 right_padding,
13570 width: line_gutter_width + left_padding + right_padding,
13571 margin: -descent,
13572 git_blame_entries_width,
13573 }
13574 }
13575
13576 pub fn render_fold_toggle(
13577 &self,
13578 buffer_row: MultiBufferRow,
13579 row_contains_cursor: bool,
13580 editor: View<Editor>,
13581 cx: &mut WindowContext,
13582 ) -> Option<AnyElement> {
13583 let folded = self.is_line_folded(buffer_row);
13584
13585 if let Some(crease) = self
13586 .crease_snapshot
13587 .query_row(buffer_row, &self.buffer_snapshot)
13588 {
13589 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13590 if folded {
13591 editor.update(cx, |editor, cx| {
13592 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13593 });
13594 } else {
13595 editor.update(cx, |editor, cx| {
13596 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13597 });
13598 }
13599 });
13600
13601 Some((crease.render_toggle)(
13602 buffer_row,
13603 folded,
13604 toggle_callback,
13605 cx,
13606 ))
13607 } else if folded
13608 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13609 {
13610 Some(
13611 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13612 .selected(folded)
13613 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13614 if folded {
13615 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13616 } else {
13617 this.fold_at(&FoldAt { buffer_row }, cx);
13618 }
13619 }))
13620 .into_any_element(),
13621 )
13622 } else {
13623 None
13624 }
13625 }
13626
13627 pub fn render_crease_trailer(
13628 &self,
13629 buffer_row: MultiBufferRow,
13630 cx: &mut WindowContext,
13631 ) -> Option<AnyElement> {
13632 let folded = self.is_line_folded(buffer_row);
13633 let crease = self
13634 .crease_snapshot
13635 .query_row(buffer_row, &self.buffer_snapshot)?;
13636 Some((crease.render_trailer)(buffer_row, folded, cx))
13637 }
13638}
13639
13640impl Deref for EditorSnapshot {
13641 type Target = DisplaySnapshot;
13642
13643 fn deref(&self) -> &Self::Target {
13644 &self.display_snapshot
13645 }
13646}
13647
13648#[derive(Clone, Debug, PartialEq, Eq)]
13649pub enum EditorEvent {
13650 InputIgnored {
13651 text: Arc<str>,
13652 },
13653 InputHandled {
13654 utf16_range_to_replace: Option<Range<isize>>,
13655 text: Arc<str>,
13656 },
13657 ExcerptsAdded {
13658 buffer: Model<Buffer>,
13659 predecessor: ExcerptId,
13660 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13661 },
13662 ExcerptsRemoved {
13663 ids: Vec<ExcerptId>,
13664 },
13665 ExcerptsEdited {
13666 ids: Vec<ExcerptId>,
13667 },
13668 ExcerptsExpanded {
13669 ids: Vec<ExcerptId>,
13670 },
13671 BufferEdited,
13672 Edited {
13673 transaction_id: clock::Lamport,
13674 },
13675 Reparsed(BufferId),
13676 Focused,
13677 FocusedIn,
13678 Blurred,
13679 DirtyChanged,
13680 Saved,
13681 TitleChanged,
13682 DiffBaseChanged,
13683 SelectionsChanged {
13684 local: bool,
13685 },
13686 ScrollPositionChanged {
13687 local: bool,
13688 autoscroll: bool,
13689 },
13690 Closed,
13691 TransactionUndone {
13692 transaction_id: clock::Lamport,
13693 },
13694 TransactionBegun {
13695 transaction_id: clock::Lamport,
13696 },
13697 Reloaded,
13698 CursorShapeChanged,
13699}
13700
13701impl EventEmitter<EditorEvent> for Editor {}
13702
13703impl FocusableView for Editor {
13704 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13705 self.focus_handle.clone()
13706 }
13707}
13708
13709impl Render for Editor {
13710 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13711 let settings = ThemeSettings::get_global(cx);
13712
13713 let mut text_style = match self.mode {
13714 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13715 color: cx.theme().colors().editor_foreground,
13716 font_family: settings.ui_font.family.clone(),
13717 font_features: settings.ui_font.features.clone(),
13718 font_fallbacks: settings.ui_font.fallbacks.clone(),
13719 font_size: rems(0.875).into(),
13720 font_weight: settings.ui_font.weight,
13721 line_height: relative(settings.buffer_line_height.value()),
13722 ..Default::default()
13723 },
13724 EditorMode::Full => TextStyle {
13725 color: cx.theme().colors().editor_foreground,
13726 font_family: settings.buffer_font.family.clone(),
13727 font_features: settings.buffer_font.features.clone(),
13728 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13729 font_size: settings.buffer_font_size(cx).into(),
13730 font_weight: settings.buffer_font.weight,
13731 line_height: relative(settings.buffer_line_height.value()),
13732 ..Default::default()
13733 },
13734 };
13735 if let Some(text_style_refinement) = &self.text_style_refinement {
13736 text_style.refine(text_style_refinement)
13737 }
13738
13739 let background = match self.mode {
13740 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13741 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13742 EditorMode::Full => cx.theme().colors().editor_background,
13743 };
13744
13745 EditorElement::new(
13746 cx.view(),
13747 EditorStyle {
13748 background,
13749 local_player: cx.theme().players().local(),
13750 text: text_style,
13751 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13752 syntax: cx.theme().syntax().clone(),
13753 status: cx.theme().status().clone(),
13754 inlay_hints_style: make_inlay_hints_style(cx),
13755 suggestions_style: HighlightStyle {
13756 color: Some(cx.theme().status().predictive),
13757 ..HighlightStyle::default()
13758 },
13759 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13760 },
13761 )
13762 }
13763}
13764
13765impl ViewInputHandler for Editor {
13766 fn text_for_range(
13767 &mut self,
13768 range_utf16: Range<usize>,
13769 cx: &mut ViewContext<Self>,
13770 ) -> Option<String> {
13771 Some(
13772 self.buffer
13773 .read(cx)
13774 .read(cx)
13775 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13776 .collect(),
13777 )
13778 }
13779
13780 fn selected_text_range(
13781 &mut self,
13782 ignore_disabled_input: bool,
13783 cx: &mut ViewContext<Self>,
13784 ) -> Option<UTF16Selection> {
13785 // Prevent the IME menu from appearing when holding down an alphabetic key
13786 // while input is disabled.
13787 if !ignore_disabled_input && !self.input_enabled {
13788 return None;
13789 }
13790
13791 let selection = self.selections.newest::<OffsetUtf16>(cx);
13792 let range = selection.range();
13793
13794 Some(UTF16Selection {
13795 range: range.start.0..range.end.0,
13796 reversed: selection.reversed,
13797 })
13798 }
13799
13800 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13801 let snapshot = self.buffer.read(cx).read(cx);
13802 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13803 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13804 }
13805
13806 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13807 self.clear_highlights::<InputComposition>(cx);
13808 self.ime_transaction.take();
13809 }
13810
13811 fn replace_text_in_range(
13812 &mut self,
13813 range_utf16: Option<Range<usize>>,
13814 text: &str,
13815 cx: &mut ViewContext<Self>,
13816 ) {
13817 if !self.input_enabled {
13818 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13819 return;
13820 }
13821
13822 self.transact(cx, |this, cx| {
13823 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13824 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13825 Some(this.selection_replacement_ranges(range_utf16, cx))
13826 } else {
13827 this.marked_text_ranges(cx)
13828 };
13829
13830 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13831 let newest_selection_id = this.selections.newest_anchor().id;
13832 this.selections
13833 .all::<OffsetUtf16>(cx)
13834 .iter()
13835 .zip(ranges_to_replace.iter())
13836 .find_map(|(selection, range)| {
13837 if selection.id == newest_selection_id {
13838 Some(
13839 (range.start.0 as isize - selection.head().0 as isize)
13840 ..(range.end.0 as isize - selection.head().0 as isize),
13841 )
13842 } else {
13843 None
13844 }
13845 })
13846 });
13847
13848 cx.emit(EditorEvent::InputHandled {
13849 utf16_range_to_replace: range_to_replace,
13850 text: text.into(),
13851 });
13852
13853 if let Some(new_selected_ranges) = new_selected_ranges {
13854 this.change_selections(None, cx, |selections| {
13855 selections.select_ranges(new_selected_ranges)
13856 });
13857 this.backspace(&Default::default(), cx);
13858 }
13859
13860 this.handle_input(text, cx);
13861 });
13862
13863 if let Some(transaction) = self.ime_transaction {
13864 self.buffer.update(cx, |buffer, cx| {
13865 buffer.group_until_transaction(transaction, cx);
13866 });
13867 }
13868
13869 self.unmark_text(cx);
13870 }
13871
13872 fn replace_and_mark_text_in_range(
13873 &mut self,
13874 range_utf16: Option<Range<usize>>,
13875 text: &str,
13876 new_selected_range_utf16: Option<Range<usize>>,
13877 cx: &mut ViewContext<Self>,
13878 ) {
13879 if !self.input_enabled {
13880 return;
13881 }
13882
13883 let transaction = self.transact(cx, |this, cx| {
13884 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13885 let snapshot = this.buffer.read(cx).read(cx);
13886 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13887 for marked_range in &mut marked_ranges {
13888 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13889 marked_range.start.0 += relative_range_utf16.start;
13890 marked_range.start =
13891 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13892 marked_range.end =
13893 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13894 }
13895 }
13896 Some(marked_ranges)
13897 } else if let Some(range_utf16) = range_utf16 {
13898 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13899 Some(this.selection_replacement_ranges(range_utf16, cx))
13900 } else {
13901 None
13902 };
13903
13904 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13905 let newest_selection_id = this.selections.newest_anchor().id;
13906 this.selections
13907 .all::<OffsetUtf16>(cx)
13908 .iter()
13909 .zip(ranges_to_replace.iter())
13910 .find_map(|(selection, range)| {
13911 if selection.id == newest_selection_id {
13912 Some(
13913 (range.start.0 as isize - selection.head().0 as isize)
13914 ..(range.end.0 as isize - selection.head().0 as isize),
13915 )
13916 } else {
13917 None
13918 }
13919 })
13920 });
13921
13922 cx.emit(EditorEvent::InputHandled {
13923 utf16_range_to_replace: range_to_replace,
13924 text: text.into(),
13925 });
13926
13927 if let Some(ranges) = ranges_to_replace {
13928 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13929 }
13930
13931 let marked_ranges = {
13932 let snapshot = this.buffer.read(cx).read(cx);
13933 this.selections
13934 .disjoint_anchors()
13935 .iter()
13936 .map(|selection| {
13937 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13938 })
13939 .collect::<Vec<_>>()
13940 };
13941
13942 if text.is_empty() {
13943 this.unmark_text(cx);
13944 } else {
13945 this.highlight_text::<InputComposition>(
13946 marked_ranges.clone(),
13947 HighlightStyle {
13948 underline: Some(UnderlineStyle {
13949 thickness: px(1.),
13950 color: None,
13951 wavy: false,
13952 }),
13953 ..Default::default()
13954 },
13955 cx,
13956 );
13957 }
13958
13959 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13960 let use_autoclose = this.use_autoclose;
13961 let use_auto_surround = this.use_auto_surround;
13962 this.set_use_autoclose(false);
13963 this.set_use_auto_surround(false);
13964 this.handle_input(text, cx);
13965 this.set_use_autoclose(use_autoclose);
13966 this.set_use_auto_surround(use_auto_surround);
13967
13968 if let Some(new_selected_range) = new_selected_range_utf16 {
13969 let snapshot = this.buffer.read(cx).read(cx);
13970 let new_selected_ranges = marked_ranges
13971 .into_iter()
13972 .map(|marked_range| {
13973 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13974 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13975 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13976 snapshot.clip_offset_utf16(new_start, Bias::Left)
13977 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13978 })
13979 .collect::<Vec<_>>();
13980
13981 drop(snapshot);
13982 this.change_selections(None, cx, |selections| {
13983 selections.select_ranges(new_selected_ranges)
13984 });
13985 }
13986 });
13987
13988 self.ime_transaction = self.ime_transaction.or(transaction);
13989 if let Some(transaction) = self.ime_transaction {
13990 self.buffer.update(cx, |buffer, cx| {
13991 buffer.group_until_transaction(transaction, cx);
13992 });
13993 }
13994
13995 if self.text_highlights::<InputComposition>(cx).is_none() {
13996 self.ime_transaction.take();
13997 }
13998 }
13999
14000 fn bounds_for_range(
14001 &mut self,
14002 range_utf16: Range<usize>,
14003 element_bounds: gpui::Bounds<Pixels>,
14004 cx: &mut ViewContext<Self>,
14005 ) -> Option<gpui::Bounds<Pixels>> {
14006 let text_layout_details = self.text_layout_details(cx);
14007 let style = &text_layout_details.editor_style;
14008 let font_id = cx.text_system().resolve_font(&style.text.font());
14009 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14010 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14011
14012 let em_width = cx
14013 .text_system()
14014 .typographic_bounds(font_id, font_size, 'm')
14015 .unwrap()
14016 .size
14017 .width;
14018
14019 let snapshot = self.snapshot(cx);
14020 let scroll_position = snapshot.scroll_position();
14021 let scroll_left = scroll_position.x * em_width;
14022
14023 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14024 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14025 + self.gutter_dimensions.width;
14026 let y = line_height * (start.row().as_f32() - scroll_position.y);
14027
14028 Some(Bounds {
14029 origin: element_bounds.origin + point(x, y),
14030 size: size(em_width, line_height),
14031 })
14032 }
14033}
14034
14035trait SelectionExt {
14036 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14037 fn spanned_rows(
14038 &self,
14039 include_end_if_at_line_start: bool,
14040 map: &DisplaySnapshot,
14041 ) -> Range<MultiBufferRow>;
14042}
14043
14044impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14045 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14046 let start = self
14047 .start
14048 .to_point(&map.buffer_snapshot)
14049 .to_display_point(map);
14050 let end = self
14051 .end
14052 .to_point(&map.buffer_snapshot)
14053 .to_display_point(map);
14054 if self.reversed {
14055 end..start
14056 } else {
14057 start..end
14058 }
14059 }
14060
14061 fn spanned_rows(
14062 &self,
14063 include_end_if_at_line_start: bool,
14064 map: &DisplaySnapshot,
14065 ) -> Range<MultiBufferRow> {
14066 let start = self.start.to_point(&map.buffer_snapshot);
14067 let mut end = self.end.to_point(&map.buffer_snapshot);
14068 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14069 end.row -= 1;
14070 }
14071
14072 let buffer_start = map.prev_line_boundary(start).0;
14073 let buffer_end = map.next_line_boundary(end).0;
14074 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14075 }
14076}
14077
14078impl<T: InvalidationRegion> InvalidationStack<T> {
14079 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14080 where
14081 S: Clone + ToOffset,
14082 {
14083 while let Some(region) = self.last() {
14084 let all_selections_inside_invalidation_ranges =
14085 if selections.len() == region.ranges().len() {
14086 selections
14087 .iter()
14088 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14089 .all(|(selection, invalidation_range)| {
14090 let head = selection.head().to_offset(buffer);
14091 invalidation_range.start <= head && invalidation_range.end >= head
14092 })
14093 } else {
14094 false
14095 };
14096
14097 if all_selections_inside_invalidation_ranges {
14098 break;
14099 } else {
14100 self.pop();
14101 }
14102 }
14103 }
14104}
14105
14106impl<T> Default for InvalidationStack<T> {
14107 fn default() -> Self {
14108 Self(Default::default())
14109 }
14110}
14111
14112impl<T> Deref for InvalidationStack<T> {
14113 type Target = Vec<T>;
14114
14115 fn deref(&self) -> &Self::Target {
14116 &self.0
14117 }
14118}
14119
14120impl<T> DerefMut for InvalidationStack<T> {
14121 fn deref_mut(&mut self) -> &mut Self::Target {
14122 &mut self.0
14123 }
14124}
14125
14126impl InvalidationRegion for SnippetState {
14127 fn ranges(&self) -> &[Range<Anchor>] {
14128 &self.ranges[self.active_index]
14129 }
14130}
14131
14132pub fn diagnostic_block_renderer(
14133 diagnostic: Diagnostic,
14134 max_message_rows: Option<u8>,
14135 allow_closing: bool,
14136 _is_valid: bool,
14137) -> RenderBlock {
14138 let (text_without_backticks, code_ranges) =
14139 highlight_diagnostic_message(&diagnostic, max_message_rows);
14140
14141 Box::new(move |cx: &mut BlockContext| {
14142 let group_id: SharedString = cx.block_id.to_string().into();
14143
14144 let mut text_style = cx.text_style().clone();
14145 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14146 let theme_settings = ThemeSettings::get_global(cx);
14147 text_style.font_family = theme_settings.buffer_font.family.clone();
14148 text_style.font_style = theme_settings.buffer_font.style;
14149 text_style.font_features = theme_settings.buffer_font.features.clone();
14150 text_style.font_weight = theme_settings.buffer_font.weight;
14151
14152 let multi_line_diagnostic = diagnostic.message.contains('\n');
14153
14154 let buttons = |diagnostic: &Diagnostic| {
14155 if multi_line_diagnostic {
14156 v_flex()
14157 } else {
14158 h_flex()
14159 }
14160 .when(allow_closing, |div| {
14161 div.children(diagnostic.is_primary.then(|| {
14162 IconButton::new("close-block", IconName::XCircle)
14163 .icon_color(Color::Muted)
14164 .size(ButtonSize::Compact)
14165 .style(ButtonStyle::Transparent)
14166 .visible_on_hover(group_id.clone())
14167 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14168 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14169 }))
14170 })
14171 .child(
14172 IconButton::new("copy-block", IconName::Copy)
14173 .icon_color(Color::Muted)
14174 .size(ButtonSize::Compact)
14175 .style(ButtonStyle::Transparent)
14176 .visible_on_hover(group_id.clone())
14177 .on_click({
14178 let message = diagnostic.message.clone();
14179 move |_click, cx| {
14180 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14181 }
14182 })
14183 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14184 )
14185 };
14186
14187 let icon_size = buttons(&diagnostic)
14188 .into_any_element()
14189 .layout_as_root(AvailableSpace::min_size(), cx);
14190
14191 h_flex()
14192 .id(cx.block_id)
14193 .group(group_id.clone())
14194 .relative()
14195 .size_full()
14196 .pl(cx.gutter_dimensions.width)
14197 .w(cx.max_width + cx.gutter_dimensions.width)
14198 .child(
14199 div()
14200 .flex()
14201 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14202 .flex_shrink(),
14203 )
14204 .child(buttons(&diagnostic))
14205 .child(div().flex().flex_shrink_0().child(
14206 StyledText::new(text_without_backticks.clone()).with_highlights(
14207 &text_style,
14208 code_ranges.iter().map(|range| {
14209 (
14210 range.clone(),
14211 HighlightStyle {
14212 font_weight: Some(FontWeight::BOLD),
14213 ..Default::default()
14214 },
14215 )
14216 }),
14217 ),
14218 ))
14219 .into_any_element()
14220 })
14221}
14222
14223pub fn highlight_diagnostic_message(
14224 diagnostic: &Diagnostic,
14225 mut max_message_rows: Option<u8>,
14226) -> (SharedString, Vec<Range<usize>>) {
14227 let mut text_without_backticks = String::new();
14228 let mut code_ranges = Vec::new();
14229
14230 if let Some(source) = &diagnostic.source {
14231 text_without_backticks.push_str(source);
14232 code_ranges.push(0..source.len());
14233 text_without_backticks.push_str(": ");
14234 }
14235
14236 let mut prev_offset = 0;
14237 let mut in_code_block = false;
14238 let has_row_limit = max_message_rows.is_some();
14239 let mut newline_indices = diagnostic
14240 .message
14241 .match_indices('\n')
14242 .filter(|_| has_row_limit)
14243 .map(|(ix, _)| ix)
14244 .fuse()
14245 .peekable();
14246
14247 for (quote_ix, _) in diagnostic
14248 .message
14249 .match_indices('`')
14250 .chain([(diagnostic.message.len(), "")])
14251 {
14252 let mut first_newline_ix = None;
14253 let mut last_newline_ix = None;
14254 while let Some(newline_ix) = newline_indices.peek() {
14255 if *newline_ix < quote_ix {
14256 if first_newline_ix.is_none() {
14257 first_newline_ix = Some(*newline_ix);
14258 }
14259 last_newline_ix = Some(*newline_ix);
14260
14261 if let Some(rows_left) = &mut max_message_rows {
14262 if *rows_left == 0 {
14263 break;
14264 } else {
14265 *rows_left -= 1;
14266 }
14267 }
14268 let _ = newline_indices.next();
14269 } else {
14270 break;
14271 }
14272 }
14273 let prev_len = text_without_backticks.len();
14274 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14275 text_without_backticks.push_str(new_text);
14276 if in_code_block {
14277 code_ranges.push(prev_len..text_without_backticks.len());
14278 }
14279 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14280 in_code_block = !in_code_block;
14281 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14282 text_without_backticks.push_str("...");
14283 break;
14284 }
14285 }
14286
14287 (text_without_backticks.into(), code_ranges)
14288}
14289
14290fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14291 match severity {
14292 DiagnosticSeverity::ERROR => colors.error,
14293 DiagnosticSeverity::WARNING => colors.warning,
14294 DiagnosticSeverity::INFORMATION => colors.info,
14295 DiagnosticSeverity::HINT => colors.info,
14296 _ => colors.ignored,
14297 }
14298}
14299
14300pub fn styled_runs_for_code_label<'a>(
14301 label: &'a CodeLabel,
14302 syntax_theme: &'a theme::SyntaxTheme,
14303) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14304 let fade_out = HighlightStyle {
14305 fade_out: Some(0.35),
14306 ..Default::default()
14307 };
14308
14309 let mut prev_end = label.filter_range.end;
14310 label
14311 .runs
14312 .iter()
14313 .enumerate()
14314 .flat_map(move |(ix, (range, highlight_id))| {
14315 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14316 style
14317 } else {
14318 return Default::default();
14319 };
14320 let mut muted_style = style;
14321 muted_style.highlight(fade_out);
14322
14323 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14324 if range.start >= label.filter_range.end {
14325 if range.start > prev_end {
14326 runs.push((prev_end..range.start, fade_out));
14327 }
14328 runs.push((range.clone(), muted_style));
14329 } else if range.end <= label.filter_range.end {
14330 runs.push((range.clone(), style));
14331 } else {
14332 runs.push((range.start..label.filter_range.end, style));
14333 runs.push((label.filter_range.end..range.end, muted_style));
14334 }
14335 prev_end = cmp::max(prev_end, range.end);
14336
14337 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14338 runs.push((prev_end..label.text.len(), fade_out));
14339 }
14340
14341 runs
14342 })
14343}
14344
14345pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14346 let mut prev_index = 0;
14347 let mut prev_codepoint: Option<char> = None;
14348 text.char_indices()
14349 .chain([(text.len(), '\0')])
14350 .filter_map(move |(index, codepoint)| {
14351 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14352 let is_boundary = index == text.len()
14353 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14354 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14355 if is_boundary {
14356 let chunk = &text[prev_index..index];
14357 prev_index = index;
14358 Some(chunk)
14359 } else {
14360 None
14361 }
14362 })
14363}
14364
14365pub trait RangeToAnchorExt: Sized {
14366 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14367
14368 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14369 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14370 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14371 }
14372}
14373
14374impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14375 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14376 let start_offset = self.start.to_offset(snapshot);
14377 let end_offset = self.end.to_offset(snapshot);
14378 if start_offset == end_offset {
14379 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14380 } else {
14381 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14382 }
14383 }
14384}
14385
14386pub trait RowExt {
14387 fn as_f32(&self) -> f32;
14388
14389 fn next_row(&self) -> Self;
14390
14391 fn previous_row(&self) -> Self;
14392
14393 fn minus(&self, other: Self) -> u32;
14394}
14395
14396impl RowExt for DisplayRow {
14397 fn as_f32(&self) -> f32 {
14398 self.0 as f32
14399 }
14400
14401 fn next_row(&self) -> Self {
14402 Self(self.0 + 1)
14403 }
14404
14405 fn previous_row(&self) -> Self {
14406 Self(self.0.saturating_sub(1))
14407 }
14408
14409 fn minus(&self, other: Self) -> u32 {
14410 self.0 - other.0
14411 }
14412}
14413
14414impl RowExt for MultiBufferRow {
14415 fn as_f32(&self) -> f32 {
14416 self.0 as f32
14417 }
14418
14419 fn next_row(&self) -> Self {
14420 Self(self.0 + 1)
14421 }
14422
14423 fn previous_row(&self) -> Self {
14424 Self(self.0.saturating_sub(1))
14425 }
14426
14427 fn minus(&self, other: Self) -> u32 {
14428 self.0 - other.0
14429 }
14430}
14431
14432trait RowRangeExt {
14433 type Row;
14434
14435 fn len(&self) -> usize;
14436
14437 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14438}
14439
14440impl RowRangeExt for Range<MultiBufferRow> {
14441 type Row = MultiBufferRow;
14442
14443 fn len(&self) -> usize {
14444 (self.end.0 - self.start.0) as usize
14445 }
14446
14447 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14448 (self.start.0..self.end.0).map(MultiBufferRow)
14449 }
14450}
14451
14452impl RowRangeExt for Range<DisplayRow> {
14453 type Row = DisplayRow;
14454
14455 fn len(&self) -> usize {
14456 (self.end.0 - self.start.0) as usize
14457 }
14458
14459 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14460 (self.start.0..self.end.0).map(DisplayRow)
14461 }
14462}
14463
14464fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14465 if hunk.diff_base_byte_range.is_empty() {
14466 DiffHunkStatus::Added
14467 } else if hunk.row_range.is_empty() {
14468 DiffHunkStatus::Removed
14469 } else {
14470 DiffHunkStatus::Modified
14471 }
14472}
14473
14474/// If select range has more than one line, we
14475/// just point the cursor to range.start.
14476fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14477 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14478 range
14479 } else {
14480 range.start..range.start
14481 }
14482}