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 code_context_menus;
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;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45#[cfg(test)]
46mod inline_completion_tests;
47mod signature_help;
48#[cfg(any(test, feature = "test-support"))]
49pub mod test;
50
51use ::git::diff::DiffHunkStatus;
52pub(crate) use actions::*;
53pub use actions::{OpenExcerpts, OpenExcerptsSplit};
54use aho_corasick::AhoCorasick;
55use anyhow::{anyhow, Context as _, Result};
56use blink_manager::BlinkManager;
57use client::{Collaborator, ParticipantIndex};
58use clock::ReplicaId;
59use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
60use convert_case::{Case, Casing};
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::StringMatchCandidate;
73
74use code_context_menus::{
75 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
76 CompletionEntry, CompletionsMenu, ContextMenuOrigin,
77};
78use git::blame::GitBlame;
79use gpui::{
80 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
81 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
82 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
83 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
84 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
85 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
86 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
87 WeakView, WindowContext,
88};
89use highlight_matching_bracket::refresh_matching_bracket_highlights;
90use hover_popover::{hide_hover, HoverState};
91pub(crate) use hunk_diff::HoveredHunk;
92use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
93use indent_guides::ActiveIndentGuidesState;
94use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
95pub use inline_completion::Direction;
96use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
97pub use items::MAX_TAB_TITLE_LEN;
98use itertools::Itertools;
99use language::{
100 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
101 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
102 CursorShape, Diagnostic, DiagnosticEntry, Documentation, IndentKind, IndentSize, Language,
103 OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
104};
105use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
106use linked_editing_ranges::refresh_linked_ranges;
107use mouse_context_menu::MouseContextMenu;
108pub use proposed_changes_editor::{
109 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
110};
111use similar::{ChangeTag, TextDiff};
112use std::iter::Peekable;
113use task::{ResolvedTask, TaskTemplate, TaskVariables};
114
115use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
116pub use lsp::CompletionContext;
117use lsp::{
118 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
119 LanguageServerId, LanguageServerName,
120};
121
122use movement::TextLayoutDetails;
123pub use multi_buffer::{
124 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
125 ToPoint,
126};
127use multi_buffer::{
128 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
129};
130use project::{
131 buffer_store::BufferChangeSet,
132 lsp_store::{FormatTarget, FormatTrigger, OpenLspBufferHandle},
133 project_settings::{GitGutterSetting, ProjectSettings},
134 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
135 LspStore, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
136};
137use rand::prelude::*;
138use rpc::{proto::*, ErrorExt};
139use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
140use selections_collection::{
141 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
142};
143use serde::{Deserialize, Serialize};
144use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
145use smallvec::SmallVec;
146use snippet::Snippet;
147use std::{
148 any::TypeId,
149 borrow::Cow,
150 cell::RefCell,
151 cmp::{self, Ordering, Reverse},
152 mem,
153 num::NonZeroU32,
154 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
155 path::{Path, PathBuf},
156 rc::Rc,
157 sync::Arc,
158 time::{Duration, Instant},
159};
160pub use sum_tree::Bias;
161use sum_tree::TreeMap;
162use text::{BufferId, OffsetUtf16, Rope};
163use theme::{
164 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
165 ThemeColors, ThemeSettings,
166};
167use ui::{
168 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
169 PopoverMenuHandle, Tooltip,
170};
171use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
172use workspace::item::{ItemHandle, PreviewTabsSettings};
173use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
174use workspace::{
175 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
176};
177use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
178
179use crate::hover_links::{find_url, find_url_from_range};
180use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
181
182pub const FILE_HEADER_HEIGHT: u32 = 2;
183pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
184pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
185pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
186const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
187const MAX_LINE_LEN: usize = 1024;
188const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
189const MAX_SELECTION_HISTORY_LEN: usize = 1024;
190pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
191#[doc(hidden)]
192pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
193
194pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
195pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
196
197pub fn render_parsed_markdown(
198 element_id: impl Into<ElementId>,
199 parsed: &language::ParsedMarkdown,
200 editor_style: &EditorStyle,
201 workspace: Option<WeakView<Workspace>>,
202 cx: &mut WindowContext,
203) -> InteractiveText {
204 let code_span_background_color = cx
205 .theme()
206 .colors()
207 .editor_document_highlight_read_background;
208
209 let highlights = gpui::combine_highlights(
210 parsed.highlights.iter().filter_map(|(range, highlight)| {
211 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
212 Some((range.clone(), highlight))
213 }),
214 parsed
215 .regions
216 .iter()
217 .zip(&parsed.region_ranges)
218 .filter_map(|(region, range)| {
219 if region.code {
220 Some((
221 range.clone(),
222 HighlightStyle {
223 background_color: Some(code_span_background_color),
224 ..Default::default()
225 },
226 ))
227 } else {
228 None
229 }
230 }),
231 );
232
233 let mut links = Vec::new();
234 let mut link_ranges = Vec::new();
235 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
236 if let Some(link) = region.link.clone() {
237 links.push(link);
238 link_ranges.push(range.clone());
239 }
240 }
241
242 InteractiveText::new(
243 element_id,
244 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
245 )
246 .on_click(link_ranges, move |clicked_range_ix, cx| {
247 match &links[clicked_range_ix] {
248 markdown::Link::Web { url } => cx.open_url(url),
249 markdown::Link::Path { path } => {
250 if let Some(workspace) = &workspace {
251 _ = workspace.update(cx, |workspace, cx| {
252 workspace.open_abs_path(path.clone(), false, cx).detach();
253 });
254 }
255 }
256 }
257 })
258}
259
260#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
261pub enum InlayId {
262 InlineCompletion(usize),
263 Hint(usize),
264}
265
266impl InlayId {
267 fn id(&self) -> usize {
268 match self {
269 Self::InlineCompletion(id) => *id,
270 Self::Hint(id) => *id,
271 }
272 }
273}
274
275enum DiffRowHighlight {}
276enum DocumentHighlightRead {}
277enum DocumentHighlightWrite {}
278enum InputComposition {}
279
280#[derive(Debug, Copy, Clone, PartialEq, Eq)]
281pub enum Navigated {
282 Yes,
283 No,
284}
285
286impl Navigated {
287 pub fn from_bool(yes: bool) -> Navigated {
288 if yes {
289 Navigated::Yes
290 } else {
291 Navigated::No
292 }
293 }
294}
295
296pub fn init_settings(cx: &mut AppContext) {
297 EditorSettings::register(cx);
298}
299
300pub fn init(cx: &mut AppContext) {
301 init_settings(cx);
302
303 workspace::register_project_item::<Editor>(cx);
304 workspace::FollowableViewRegistry::register::<Editor>(cx);
305 workspace::register_serializable_item::<Editor>(cx);
306
307 cx.observe_new_views(
308 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
309 workspace.register_action(Editor::new_file);
310 workspace.register_action(Editor::new_file_vertical);
311 workspace.register_action(Editor::new_file_horizontal);
312 },
313 )
314 .detach();
315
316 cx.on_action(move |_: &workspace::NewFile, cx| {
317 let app_state = workspace::AppState::global(cx);
318 if let Some(app_state) = app_state.upgrade() {
319 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
320 Editor::new_file(workspace, &Default::default(), cx)
321 })
322 .detach();
323 }
324 });
325 cx.on_action(move |_: &workspace::NewWindow, cx| {
326 let app_state = workspace::AppState::global(cx);
327 if let Some(app_state) = app_state.upgrade() {
328 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
329 Editor::new_file(workspace, &Default::default(), cx)
330 })
331 .detach();
332 }
333 });
334 git::project_diff::init(cx);
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 inline_completion_styles: InlineCompletionStyles,
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 inline_completion_styles: InlineCompletionStyles {
426 insertion: HighlightStyle::default(),
427 whitespace: HighlightStyle::default(),
428 },
429 unnecessary_code_fade: Default::default(),
430 }
431 }
432}
433
434pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
435 let show_background = language_settings::language_settings(None, None, cx)
436 .inlay_hints
437 .show_background;
438
439 HighlightStyle {
440 color: Some(cx.theme().status().hint),
441 background_color: show_background.then(|| cx.theme().status().hint_background),
442 ..HighlightStyle::default()
443 }
444}
445
446pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
447 InlineCompletionStyles {
448 insertion: HighlightStyle {
449 color: Some(cx.theme().status().predictive),
450 ..HighlightStyle::default()
451 },
452 whitespace: HighlightStyle {
453 background_color: Some(cx.theme().status().created_background),
454 ..HighlightStyle::default()
455 },
456 }
457}
458
459type CompletionId = usize;
460
461#[derive(Debug, Clone)]
462struct InlineCompletionMenuHint {
463 provider_name: &'static str,
464 text: InlineCompletionText,
465}
466
467#[derive(Clone, Debug)]
468enum InlineCompletionText {
469 Move(SharedString),
470 Edit {
471 text: SharedString,
472 highlights: Vec<(Range<usize>, HighlightStyle)>,
473 },
474}
475
476enum InlineCompletion {
477 Edit(Vec<(Range<Anchor>, String)>),
478 Move(Anchor),
479}
480
481struct InlineCompletionState {
482 inlay_ids: Vec<InlayId>,
483 completion: InlineCompletion,
484 invalidation_range: Range<Anchor>,
485}
486
487enum InlineCompletionHighlight {}
488
489#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
490struct EditorActionId(usize);
491
492impl EditorActionId {
493 pub fn post_inc(&mut self) -> Self {
494 let answer = self.0;
495
496 *self = Self(answer + 1);
497
498 Self(answer)
499 }
500}
501
502// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
503// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
504
505type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
506type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
507
508#[derive(Default)]
509struct ScrollbarMarkerState {
510 scrollbar_size: Size<Pixels>,
511 dirty: bool,
512 markers: Arc<[PaintQuad]>,
513 pending_refresh: Option<Task<Result<()>>>,
514}
515
516impl ScrollbarMarkerState {
517 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
518 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
519 }
520}
521
522#[derive(Clone, Debug)]
523struct RunnableTasks {
524 templates: Vec<(TaskSourceKind, TaskTemplate)>,
525 offset: MultiBufferOffset,
526 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
527 column: u32,
528 // Values of all named captures, including those starting with '_'
529 extra_variables: HashMap<String, String>,
530 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
531 context_range: Range<BufferOffset>,
532}
533
534impl RunnableTasks {
535 fn resolve<'a>(
536 &'a self,
537 cx: &'a task::TaskContext,
538 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
539 self.templates.iter().filter_map(|(kind, template)| {
540 template
541 .resolve_task(&kind.to_id_base(), cx)
542 .map(|task| (kind.clone(), task))
543 })
544 }
545}
546
547#[derive(Clone)]
548struct ResolvedTasks {
549 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
550 position: Anchor,
551}
552#[derive(Copy, Clone, Debug)]
553struct MultiBufferOffset(usize);
554#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
555struct BufferOffset(usize);
556
557// Addons allow storing per-editor state in other crates (e.g. Vim)
558pub trait Addon: 'static {
559 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
560
561 fn to_any(&self) -> &dyn std::any::Any;
562}
563
564#[derive(Debug, Copy, Clone, PartialEq, Eq)]
565pub enum IsVimMode {
566 Yes,
567 No,
568}
569
570/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
571///
572/// See the [module level documentation](self) for more information.
573pub struct Editor {
574 focus_handle: FocusHandle,
575 last_focused_descendant: Option<WeakFocusHandle>,
576 /// The text buffer being edited
577 buffer: Model<MultiBuffer>,
578 /// Map of how text in the buffer should be displayed.
579 /// Handles soft wraps, folds, fake inlay text insertions, etc.
580 pub display_map: Model<DisplayMap>,
581 pub selections: SelectionsCollection,
582 pub scroll_manager: ScrollManager,
583 /// When inline assist editors are linked, they all render cursors because
584 /// typing enters text into each of them, even the ones that aren't focused.
585 pub(crate) show_cursor_when_unfocused: bool,
586 columnar_selection_tail: Option<Anchor>,
587 add_selections_state: Option<AddSelectionsState>,
588 select_next_state: Option<SelectNextState>,
589 select_prev_state: Option<SelectNextState>,
590 selection_history: SelectionHistory,
591 autoclose_regions: Vec<AutocloseRegion>,
592 snippet_stack: InvalidationStack<SnippetState>,
593 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
594 ime_transaction: Option<TransactionId>,
595 active_diagnostics: Option<ActiveDiagnosticGroup>,
596 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
597
598 project: Option<Model<Project>>,
599 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
600 completion_provider: Option<Box<dyn CompletionProvider>>,
601 collaboration_hub: Option<Box<dyn CollaborationHub>>,
602 blink_manager: Model<BlinkManager>,
603 show_cursor_names: bool,
604 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
605 pub show_local_selections: bool,
606 mode: EditorMode,
607 show_breadcrumbs: bool,
608 show_gutter: bool,
609 show_scrollbars: bool,
610 show_line_numbers: Option<bool>,
611 use_relative_line_numbers: Option<bool>,
612 show_git_diff_gutter: Option<bool>,
613 show_code_actions: Option<bool>,
614 show_runnables: Option<bool>,
615 show_wrap_guides: Option<bool>,
616 show_indent_guides: Option<bool>,
617 placeholder_text: Option<Arc<str>>,
618 highlight_order: usize,
619 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
620 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
621 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
622 scrollbar_marker_state: ScrollbarMarkerState,
623 active_indent_guides_state: ActiveIndentGuidesState,
624 nav_history: Option<ItemNavHistory>,
625 context_menu: RefCell<Option<CodeContextMenu>>,
626 mouse_context_menu: Option<MouseContextMenu>,
627 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
628 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
629 signature_help_state: SignatureHelpState,
630 auto_signature_help: Option<bool>,
631 find_all_references_task_sources: Vec<Anchor>,
632 next_completion_id: CompletionId,
633 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
634 code_actions_task: Option<Task<Result<()>>>,
635 document_highlights_task: Option<Task<()>>,
636 linked_editing_range_task: Option<Task<Option<()>>>,
637 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
638 pending_rename: Option<RenameState>,
639 searchable: bool,
640 cursor_shape: CursorShape,
641 current_line_highlight: Option<CurrentLineHighlight>,
642 collapse_matches: bool,
643 autoindent_mode: Option<AutoindentMode>,
644 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
645 input_enabled: bool,
646 use_modal_editing: bool,
647 read_only: bool,
648 leader_peer_id: Option<PeerId>,
649 remote_id: Option<ViewId>,
650 hover_state: HoverState,
651 gutter_hovered: bool,
652 hovered_link_state: Option<HoveredLinkState>,
653 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
654 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
655 active_inline_completion: Option<InlineCompletionState>,
656 // enable_inline_completions is a switch that Vim can use to disable
657 // inline completions based on its mode.
658 enable_inline_completions: bool,
659 show_inline_completions_override: Option<bool>,
660 inlay_hint_cache: InlayHintCache,
661 diff_map: DiffMap,
662 next_inlay_id: usize,
663 _subscriptions: Vec<Subscription>,
664 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
665 gutter_dimensions: GutterDimensions,
666 style: Option<EditorStyle>,
667 text_style_refinement: Option<TextStyleRefinement>,
668 next_editor_action_id: EditorActionId,
669 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
670 use_autoclose: bool,
671 use_auto_surround: bool,
672 auto_replace_emoji_shortcode: bool,
673 show_git_blame_gutter: bool,
674 show_git_blame_inline: bool,
675 show_git_blame_inline_delay_task: Option<Task<()>>,
676 git_blame_inline_enabled: bool,
677 serialize_dirty_buffers: bool,
678 show_selection_menu: Option<bool>,
679 blame: Option<Model<GitBlame>>,
680 blame_subscription: Option<Subscription>,
681 custom_context_menu: Option<
682 Box<
683 dyn 'static
684 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
685 >,
686 >,
687 last_bounds: Option<Bounds<Pixels>>,
688 expect_bounds_change: Option<Bounds<Pixels>>,
689 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
690 tasks_update_task: Option<Task<()>>,
691 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
692 breadcrumb_header: Option<String>,
693 focused_block: Option<FocusedBlock>,
694 next_scroll_position: NextScrollCursorCenterTopBottom,
695 addons: HashMap<TypeId, Box<dyn Addon>>,
696 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
697 toggle_fold_multiple_buffers: Task<()>,
698 _scroll_cursor_center_top_bottom_task: Task<()>,
699}
700
701#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
702enum NextScrollCursorCenterTopBottom {
703 #[default]
704 Center,
705 Top,
706 Bottom,
707}
708
709impl NextScrollCursorCenterTopBottom {
710 fn next(&self) -> Self {
711 match self {
712 Self::Center => Self::Top,
713 Self::Top => Self::Bottom,
714 Self::Bottom => Self::Center,
715 }
716 }
717}
718
719#[derive(Clone)]
720pub struct EditorSnapshot {
721 pub mode: EditorMode,
722 show_gutter: bool,
723 show_line_numbers: Option<bool>,
724 show_git_diff_gutter: Option<bool>,
725 show_code_actions: Option<bool>,
726 show_runnables: Option<bool>,
727 git_blame_gutter_max_author_length: Option<usize>,
728 pub display_snapshot: DisplaySnapshot,
729 pub placeholder_text: Option<Arc<str>>,
730 diff_map: DiffMapSnapshot,
731 is_focused: bool,
732 scroll_anchor: ScrollAnchor,
733 ongoing_scroll: OngoingScroll,
734 current_line_highlight: CurrentLineHighlight,
735 gutter_hovered: bool,
736}
737
738const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
739
740#[derive(Default, Debug, Clone, Copy)]
741pub struct GutterDimensions {
742 pub left_padding: Pixels,
743 pub right_padding: Pixels,
744 pub width: Pixels,
745 pub margin: Pixels,
746 pub git_blame_entries_width: Option<Pixels>,
747}
748
749impl GutterDimensions {
750 /// The full width of the space taken up by the gutter.
751 pub fn full_width(&self) -> Pixels {
752 self.margin + self.width
753 }
754
755 /// The width of the space reserved for the fold indicators,
756 /// use alongside 'justify_end' and `gutter_width` to
757 /// right align content with the line numbers
758 pub fn fold_area_width(&self) -> Pixels {
759 self.margin + self.right_padding
760 }
761}
762
763#[derive(Debug)]
764pub struct RemoteSelection {
765 pub replica_id: ReplicaId,
766 pub selection: Selection<Anchor>,
767 pub cursor_shape: CursorShape,
768 pub peer_id: PeerId,
769 pub line_mode: bool,
770 pub participant_index: Option<ParticipantIndex>,
771 pub user_name: Option<SharedString>,
772}
773
774#[derive(Clone, Debug)]
775struct SelectionHistoryEntry {
776 selections: Arc<[Selection<Anchor>]>,
777 select_next_state: Option<SelectNextState>,
778 select_prev_state: Option<SelectNextState>,
779 add_selections_state: Option<AddSelectionsState>,
780}
781
782enum SelectionHistoryMode {
783 Normal,
784 Undoing,
785 Redoing,
786}
787
788#[derive(Clone, PartialEq, Eq, Hash)]
789struct HoveredCursor {
790 replica_id: u16,
791 selection_id: usize,
792}
793
794impl Default for SelectionHistoryMode {
795 fn default() -> Self {
796 Self::Normal
797 }
798}
799
800#[derive(Default)]
801struct SelectionHistory {
802 #[allow(clippy::type_complexity)]
803 selections_by_transaction:
804 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
805 mode: SelectionHistoryMode,
806 undo_stack: VecDeque<SelectionHistoryEntry>,
807 redo_stack: VecDeque<SelectionHistoryEntry>,
808}
809
810impl SelectionHistory {
811 fn insert_transaction(
812 &mut self,
813 transaction_id: TransactionId,
814 selections: Arc<[Selection<Anchor>]>,
815 ) {
816 self.selections_by_transaction
817 .insert(transaction_id, (selections, None));
818 }
819
820 #[allow(clippy::type_complexity)]
821 fn transaction(
822 &self,
823 transaction_id: TransactionId,
824 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
825 self.selections_by_transaction.get(&transaction_id)
826 }
827
828 #[allow(clippy::type_complexity)]
829 fn transaction_mut(
830 &mut self,
831 transaction_id: TransactionId,
832 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
833 self.selections_by_transaction.get_mut(&transaction_id)
834 }
835
836 fn push(&mut self, entry: SelectionHistoryEntry) {
837 if !entry.selections.is_empty() {
838 match self.mode {
839 SelectionHistoryMode::Normal => {
840 self.push_undo(entry);
841 self.redo_stack.clear();
842 }
843 SelectionHistoryMode::Undoing => self.push_redo(entry),
844 SelectionHistoryMode::Redoing => self.push_undo(entry),
845 }
846 }
847 }
848
849 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
850 if self
851 .undo_stack
852 .back()
853 .map_or(true, |e| e.selections != entry.selections)
854 {
855 self.undo_stack.push_back(entry);
856 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
857 self.undo_stack.pop_front();
858 }
859 }
860 }
861
862 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
863 if self
864 .redo_stack
865 .back()
866 .map_or(true, |e| e.selections != entry.selections)
867 {
868 self.redo_stack.push_back(entry);
869 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
870 self.redo_stack.pop_front();
871 }
872 }
873 }
874}
875
876struct RowHighlight {
877 index: usize,
878 range: Range<Anchor>,
879 color: Hsla,
880 should_autoscroll: bool,
881}
882
883#[derive(Clone, Debug)]
884struct AddSelectionsState {
885 above: bool,
886 stack: Vec<usize>,
887}
888
889#[derive(Clone)]
890struct SelectNextState {
891 query: AhoCorasick,
892 wordwise: bool,
893 done: bool,
894}
895
896impl std::fmt::Debug for SelectNextState {
897 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
898 f.debug_struct(std::any::type_name::<Self>())
899 .field("wordwise", &self.wordwise)
900 .field("done", &self.done)
901 .finish()
902 }
903}
904
905#[derive(Debug)]
906struct AutocloseRegion {
907 selection_id: usize,
908 range: Range<Anchor>,
909 pair: BracketPair,
910}
911
912#[derive(Debug)]
913struct SnippetState {
914 ranges: Vec<Vec<Range<Anchor>>>,
915 active_index: usize,
916 choices: Vec<Option<Vec<String>>>,
917}
918
919#[doc(hidden)]
920pub struct RenameState {
921 pub range: Range<Anchor>,
922 pub old_name: Arc<str>,
923 pub editor: View<Editor>,
924 block_id: CustomBlockId,
925}
926
927struct InvalidationStack<T>(Vec<T>);
928
929struct RegisteredInlineCompletionProvider {
930 provider: Arc<dyn InlineCompletionProviderHandle>,
931 _subscription: Subscription,
932}
933
934#[derive(Debug)]
935struct ActiveDiagnosticGroup {
936 primary_range: Range<Anchor>,
937 primary_message: String,
938 group_id: usize,
939 blocks: HashMap<CustomBlockId, Diagnostic>,
940 is_valid: bool,
941}
942
943#[derive(Serialize, Deserialize, Clone, Debug)]
944pub struct ClipboardSelection {
945 pub len: usize,
946 pub is_entire_line: bool,
947 pub first_line_indent: u32,
948}
949
950#[derive(Debug)]
951pub(crate) struct NavigationData {
952 cursor_anchor: Anchor,
953 cursor_position: Point,
954 scroll_anchor: ScrollAnchor,
955 scroll_top_row: u32,
956}
957
958#[derive(Debug, Clone, Copy, PartialEq, Eq)]
959pub enum GotoDefinitionKind {
960 Symbol,
961 Declaration,
962 Type,
963 Implementation,
964}
965
966#[derive(Debug, Clone)]
967enum InlayHintRefreshReason {
968 Toggle(bool),
969 SettingsChange(InlayHintSettings),
970 NewLinesShown,
971 BufferEdited(HashSet<Arc<Language>>),
972 RefreshRequested,
973 ExcerptsRemoved(Vec<ExcerptId>),
974}
975
976impl InlayHintRefreshReason {
977 fn description(&self) -> &'static str {
978 match self {
979 Self::Toggle(_) => "toggle",
980 Self::SettingsChange(_) => "settings change",
981 Self::NewLinesShown => "new lines shown",
982 Self::BufferEdited(_) => "buffer edited",
983 Self::RefreshRequested => "refresh requested",
984 Self::ExcerptsRemoved(_) => "excerpts removed",
985 }
986 }
987}
988
989pub(crate) struct FocusedBlock {
990 id: BlockId,
991 focus_handle: WeakFocusHandle,
992}
993
994#[derive(Clone)]
995enum JumpData {
996 MultiBufferRow {
997 row: MultiBufferRow,
998 line_offset_from_top: u32,
999 },
1000 MultiBufferPoint {
1001 excerpt_id: ExcerptId,
1002 position: Point,
1003 anchor: text::Anchor,
1004 line_offset_from_top: u32,
1005 },
1006}
1007
1008impl Editor {
1009 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1010 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1011 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1012 Self::new(
1013 EditorMode::SingleLine { auto_width: false },
1014 buffer,
1015 None,
1016 false,
1017 cx,
1018 )
1019 }
1020
1021 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1022 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1023 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1024 Self::new(EditorMode::Full, buffer, None, false, cx)
1025 }
1026
1027 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1028 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1029 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1030 Self::new(
1031 EditorMode::SingleLine { auto_width: true },
1032 buffer,
1033 None,
1034 false,
1035 cx,
1036 )
1037 }
1038
1039 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1040 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1041 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1042 Self::new(
1043 EditorMode::AutoHeight { max_lines },
1044 buffer,
1045 None,
1046 false,
1047 cx,
1048 )
1049 }
1050
1051 pub fn for_buffer(
1052 buffer: Model<Buffer>,
1053 project: Option<Model<Project>>,
1054 cx: &mut ViewContext<Self>,
1055 ) -> Self {
1056 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1057 Self::new(EditorMode::Full, buffer, project, false, cx)
1058 }
1059
1060 pub fn for_multibuffer(
1061 buffer: Model<MultiBuffer>,
1062 project: Option<Model<Project>>,
1063 show_excerpt_controls: bool,
1064 cx: &mut ViewContext<Self>,
1065 ) -> Self {
1066 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1067 }
1068
1069 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1070 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1071 let mut clone = Self::new(
1072 self.mode,
1073 self.buffer.clone(),
1074 self.project.clone(),
1075 show_excerpt_controls,
1076 cx,
1077 );
1078 self.display_map.update(cx, |display_map, cx| {
1079 let snapshot = display_map.snapshot(cx);
1080 clone.display_map.update(cx, |display_map, cx| {
1081 display_map.set_state(&snapshot, cx);
1082 });
1083 });
1084 clone.selections.clone_state(&self.selections);
1085 clone.scroll_manager.clone_state(&self.scroll_manager);
1086 clone.searchable = self.searchable;
1087 clone
1088 }
1089
1090 pub fn new(
1091 mode: EditorMode,
1092 buffer: Model<MultiBuffer>,
1093 project: Option<Model<Project>>,
1094 show_excerpt_controls: bool,
1095 cx: &mut ViewContext<Self>,
1096 ) -> Self {
1097 let style = cx.text_style();
1098 let font_size = style.font_size.to_pixels(cx.rem_size());
1099 let editor = cx.view().downgrade();
1100 let fold_placeholder = FoldPlaceholder {
1101 constrain_width: true,
1102 render: Arc::new(move |fold_id, fold_range, cx| {
1103 let editor = editor.clone();
1104 div()
1105 .id(fold_id)
1106 .bg(cx.theme().colors().ghost_element_background)
1107 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1108 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1109 .rounded_sm()
1110 .size_full()
1111 .cursor_pointer()
1112 .child("⋯")
1113 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1114 .on_click(move |_, cx| {
1115 editor
1116 .update(cx, |editor, cx| {
1117 editor.unfold_ranges(
1118 &[fold_range.start..fold_range.end],
1119 true,
1120 false,
1121 cx,
1122 );
1123 cx.stop_propagation();
1124 })
1125 .ok();
1126 })
1127 .into_any()
1128 }),
1129 merge_adjacent: true,
1130 ..Default::default()
1131 };
1132 let display_map = cx.new_model(|cx| {
1133 DisplayMap::new(
1134 buffer.clone(),
1135 style.font(),
1136 font_size,
1137 None,
1138 show_excerpt_controls,
1139 FILE_HEADER_HEIGHT,
1140 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1141 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1142 fold_placeholder,
1143 cx,
1144 )
1145 });
1146
1147 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1148
1149 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1150
1151 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1152 .then(|| language_settings::SoftWrap::None);
1153
1154 let mut project_subscriptions = Vec::new();
1155 if mode == EditorMode::Full {
1156 if let Some(project) = project.as_ref() {
1157 if buffer.read(cx).is_singleton() {
1158 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1159 cx.emit(EditorEvent::TitleChanged);
1160 }));
1161 }
1162 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1163 if let project::Event::RefreshInlayHints = event {
1164 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1165 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1166 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1167 let focus_handle = editor.focus_handle(cx);
1168 if focus_handle.is_focused(cx) {
1169 let snapshot = buffer.read(cx).snapshot();
1170 for (range, snippet) in snippet_edits {
1171 let editor_range =
1172 language::range_from_lsp(*range).to_offset(&snapshot);
1173 editor
1174 .insert_snippet(&[editor_range], snippet.clone(), cx)
1175 .ok();
1176 }
1177 }
1178 }
1179 }
1180 }));
1181 if let Some(task_inventory) = project
1182 .read(cx)
1183 .task_store()
1184 .read(cx)
1185 .task_inventory()
1186 .cloned()
1187 {
1188 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1189 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1190 }));
1191 }
1192 }
1193 }
1194
1195 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1196
1197 let inlay_hint_settings =
1198 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1199 let focus_handle = cx.focus_handle();
1200 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1201 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1202 .detach();
1203 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1204 .detach();
1205 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1206
1207 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1208 Some(false)
1209 } else {
1210 None
1211 };
1212
1213 let mut code_action_providers = Vec::new();
1214 if let Some(project) = project.clone() {
1215 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1216 code_action_providers.push(Rc::new(project) as Rc<_>);
1217 }
1218
1219 let mut this = Self {
1220 focus_handle,
1221 show_cursor_when_unfocused: false,
1222 last_focused_descendant: None,
1223 buffer: buffer.clone(),
1224 display_map: display_map.clone(),
1225 selections,
1226 scroll_manager: ScrollManager::new(cx),
1227 columnar_selection_tail: None,
1228 add_selections_state: None,
1229 select_next_state: None,
1230 select_prev_state: None,
1231 selection_history: Default::default(),
1232 autoclose_regions: Default::default(),
1233 snippet_stack: Default::default(),
1234 select_larger_syntax_node_stack: Vec::new(),
1235 ime_transaction: Default::default(),
1236 active_diagnostics: None,
1237 soft_wrap_mode_override,
1238 completion_provider: project.clone().map(|project| Box::new(project) as _),
1239 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1240 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1241 project,
1242 blink_manager: blink_manager.clone(),
1243 show_local_selections: true,
1244 show_scrollbars: true,
1245 mode,
1246 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1247 show_gutter: mode == EditorMode::Full,
1248 show_line_numbers: None,
1249 use_relative_line_numbers: None,
1250 show_git_diff_gutter: None,
1251 show_code_actions: None,
1252 show_runnables: None,
1253 show_wrap_guides: None,
1254 show_indent_guides,
1255 placeholder_text: None,
1256 highlight_order: 0,
1257 highlighted_rows: HashMap::default(),
1258 background_highlights: Default::default(),
1259 gutter_highlights: TreeMap::default(),
1260 scrollbar_marker_state: ScrollbarMarkerState::default(),
1261 active_indent_guides_state: ActiveIndentGuidesState::default(),
1262 nav_history: None,
1263 context_menu: RefCell::new(None),
1264 mouse_context_menu: None,
1265 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1266 completion_tasks: Default::default(),
1267 signature_help_state: SignatureHelpState::default(),
1268 auto_signature_help: None,
1269 find_all_references_task_sources: Vec::new(),
1270 next_completion_id: 0,
1271 next_inlay_id: 0,
1272 code_action_providers,
1273 available_code_actions: Default::default(),
1274 code_actions_task: Default::default(),
1275 document_highlights_task: Default::default(),
1276 linked_editing_range_task: Default::default(),
1277 pending_rename: Default::default(),
1278 searchable: true,
1279 cursor_shape: EditorSettings::get_global(cx)
1280 .cursor_shape
1281 .unwrap_or_default(),
1282 current_line_highlight: None,
1283 autoindent_mode: Some(AutoindentMode::EachLine),
1284 collapse_matches: false,
1285 workspace: None,
1286 input_enabled: true,
1287 use_modal_editing: mode == EditorMode::Full,
1288 read_only: false,
1289 use_autoclose: true,
1290 use_auto_surround: true,
1291 auto_replace_emoji_shortcode: false,
1292 leader_peer_id: None,
1293 remote_id: None,
1294 hover_state: Default::default(),
1295 hovered_link_state: Default::default(),
1296 inline_completion_provider: None,
1297 active_inline_completion: None,
1298 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1299 diff_map: DiffMap::default(),
1300 gutter_hovered: false,
1301 pixel_position_of_newest_cursor: None,
1302 last_bounds: None,
1303 expect_bounds_change: None,
1304 gutter_dimensions: GutterDimensions::default(),
1305 style: None,
1306 show_cursor_names: false,
1307 hovered_cursors: Default::default(),
1308 next_editor_action_id: EditorActionId::default(),
1309 editor_actions: Rc::default(),
1310 show_inline_completions_override: None,
1311 enable_inline_completions: true,
1312 custom_context_menu: None,
1313 show_git_blame_gutter: false,
1314 show_git_blame_inline: false,
1315 show_selection_menu: None,
1316 show_git_blame_inline_delay_task: None,
1317 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1318 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1319 .session
1320 .restore_unsaved_buffers,
1321 blame: None,
1322 blame_subscription: None,
1323 tasks: Default::default(),
1324 _subscriptions: vec![
1325 cx.observe(&buffer, Self::on_buffer_changed),
1326 cx.subscribe(&buffer, Self::on_buffer_event),
1327 cx.observe(&display_map, Self::on_display_map_changed),
1328 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1329 cx.observe_global::<SettingsStore>(Self::settings_changed),
1330 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1331 cx.observe_window_activation(|editor, cx| {
1332 let active = cx.is_window_active();
1333 editor.blink_manager.update(cx, |blink_manager, cx| {
1334 if active {
1335 blink_manager.enable(cx);
1336 } else {
1337 blink_manager.disable(cx);
1338 }
1339 });
1340 }),
1341 ],
1342 tasks_update_task: None,
1343 linked_edit_ranges: Default::default(),
1344 previous_search_ranges: None,
1345 breadcrumb_header: None,
1346 focused_block: None,
1347 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1348 addons: HashMap::default(),
1349 registered_buffers: HashMap::default(),
1350 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1351 toggle_fold_multiple_buffers: Task::ready(()),
1352 text_style_refinement: None,
1353 };
1354 this.tasks_update_task = Some(this.refresh_runnables(cx));
1355 this._subscriptions.extend(project_subscriptions);
1356
1357 this.end_selection(cx);
1358 this.scroll_manager.show_scrollbar(cx);
1359
1360 if mode == EditorMode::Full {
1361 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1362 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1363
1364 if this.git_blame_inline_enabled {
1365 this.git_blame_inline_enabled = true;
1366 this.start_git_blame_inline(false, cx);
1367 }
1368
1369 if let Some(buffer) = buffer.read(cx).as_singleton() {
1370 if let Some(project) = this.project.as_ref() {
1371 let lsp_store = project.read(cx).lsp_store();
1372 let handle = lsp_store.update(cx, |lsp_store, cx| {
1373 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1374 });
1375 this.registered_buffers
1376 .insert(buffer.read(cx).remote_id(), handle);
1377 }
1378 }
1379 }
1380
1381 this.report_editor_event("Editor Opened", None, cx);
1382 this
1383 }
1384
1385 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1386 self.mouse_context_menu
1387 .as_ref()
1388 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1389 }
1390
1391 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1392 let mut key_context = KeyContext::new_with_defaults();
1393 key_context.add("Editor");
1394 let mode = match self.mode {
1395 EditorMode::SingleLine { .. } => "single_line",
1396 EditorMode::AutoHeight { .. } => "auto_height",
1397 EditorMode::Full => "full",
1398 };
1399
1400 if EditorSettings::jupyter_enabled(cx) {
1401 key_context.add("jupyter");
1402 }
1403
1404 key_context.set("mode", mode);
1405 if self.pending_rename.is_some() {
1406 key_context.add("renaming");
1407 }
1408 match self.context_menu.borrow().as_ref() {
1409 Some(CodeContextMenu::Completions(_)) => {
1410 key_context.add("menu");
1411 key_context.add("showing_completions")
1412 }
1413 Some(CodeContextMenu::CodeActions(_)) => {
1414 key_context.add("menu");
1415 key_context.add("showing_code_actions")
1416 }
1417 None => {}
1418 }
1419
1420 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1421 if !self.focus_handle(cx).contains_focused(cx)
1422 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1423 {
1424 for addon in self.addons.values() {
1425 addon.extend_key_context(&mut key_context, cx)
1426 }
1427 }
1428
1429 if let Some(extension) = self
1430 .buffer
1431 .read(cx)
1432 .as_singleton()
1433 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1434 {
1435 key_context.set("extension", extension.to_string());
1436 }
1437
1438 if self.has_active_inline_completion() {
1439 key_context.add("copilot_suggestion");
1440 key_context.add("inline_completion");
1441 }
1442
1443 if !self
1444 .selections
1445 .disjoint
1446 .iter()
1447 .all(|selection| selection.start == selection.end)
1448 {
1449 key_context.add("selection");
1450 }
1451
1452 key_context
1453 }
1454
1455 pub fn new_file(
1456 workspace: &mut Workspace,
1457 _: &workspace::NewFile,
1458 cx: &mut ViewContext<Workspace>,
1459 ) {
1460 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1461 "Failed to create buffer",
1462 cx,
1463 |e, _| match e.error_code() {
1464 ErrorCode::RemoteUpgradeRequired => Some(format!(
1465 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1466 e.error_tag("required").unwrap_or("the latest version")
1467 )),
1468 _ => None,
1469 },
1470 );
1471 }
1472
1473 pub fn new_in_workspace(
1474 workspace: &mut Workspace,
1475 cx: &mut ViewContext<Workspace>,
1476 ) -> Task<Result<View<Editor>>> {
1477 let project = workspace.project().clone();
1478 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1479
1480 cx.spawn(|workspace, mut cx| async move {
1481 let buffer = create.await?;
1482 workspace.update(&mut cx, |workspace, cx| {
1483 let editor =
1484 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1485 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1486 editor
1487 })
1488 })
1489 }
1490
1491 fn new_file_vertical(
1492 workspace: &mut Workspace,
1493 _: &workspace::NewFileSplitVertical,
1494 cx: &mut ViewContext<Workspace>,
1495 ) {
1496 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1497 }
1498
1499 fn new_file_horizontal(
1500 workspace: &mut Workspace,
1501 _: &workspace::NewFileSplitHorizontal,
1502 cx: &mut ViewContext<Workspace>,
1503 ) {
1504 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1505 }
1506
1507 fn new_file_in_direction(
1508 workspace: &mut Workspace,
1509 direction: SplitDirection,
1510 cx: &mut ViewContext<Workspace>,
1511 ) {
1512 let project = workspace.project().clone();
1513 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1514
1515 cx.spawn(|workspace, mut cx| async move {
1516 let buffer = create.await?;
1517 workspace.update(&mut cx, move |workspace, cx| {
1518 workspace.split_item(
1519 direction,
1520 Box::new(
1521 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1522 ),
1523 cx,
1524 )
1525 })?;
1526 anyhow::Ok(())
1527 })
1528 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1529 ErrorCode::RemoteUpgradeRequired => Some(format!(
1530 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1531 e.error_tag("required").unwrap_or("the latest version")
1532 )),
1533 _ => None,
1534 });
1535 }
1536
1537 pub fn leader_peer_id(&self) -> Option<PeerId> {
1538 self.leader_peer_id
1539 }
1540
1541 pub fn buffer(&self) -> &Model<MultiBuffer> {
1542 &self.buffer
1543 }
1544
1545 pub fn workspace(&self) -> Option<View<Workspace>> {
1546 self.workspace.as_ref()?.0.upgrade()
1547 }
1548
1549 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1550 self.buffer().read(cx).title(cx)
1551 }
1552
1553 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1554 let git_blame_gutter_max_author_length = self
1555 .render_git_blame_gutter(cx)
1556 .then(|| {
1557 if let Some(blame) = self.blame.as_ref() {
1558 let max_author_length =
1559 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1560 Some(max_author_length)
1561 } else {
1562 None
1563 }
1564 })
1565 .flatten();
1566
1567 EditorSnapshot {
1568 mode: self.mode,
1569 show_gutter: self.show_gutter,
1570 show_line_numbers: self.show_line_numbers,
1571 show_git_diff_gutter: self.show_git_diff_gutter,
1572 show_code_actions: self.show_code_actions,
1573 show_runnables: self.show_runnables,
1574 git_blame_gutter_max_author_length,
1575 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1576 scroll_anchor: self.scroll_manager.anchor(),
1577 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1578 placeholder_text: self.placeholder_text.clone(),
1579 diff_map: self.diff_map.snapshot(),
1580 is_focused: self.focus_handle.is_focused(cx),
1581 current_line_highlight: self
1582 .current_line_highlight
1583 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1584 gutter_hovered: self.gutter_hovered,
1585 }
1586 }
1587
1588 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1589 self.buffer.read(cx).language_at(point, cx)
1590 }
1591
1592 pub fn file_at<T: ToOffset>(
1593 &self,
1594 point: T,
1595 cx: &AppContext,
1596 ) -> Option<Arc<dyn language::File>> {
1597 self.buffer.read(cx).read(cx).file_at(point).cloned()
1598 }
1599
1600 pub fn active_excerpt(
1601 &self,
1602 cx: &AppContext,
1603 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1604 self.buffer
1605 .read(cx)
1606 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1607 }
1608
1609 pub fn mode(&self) -> EditorMode {
1610 self.mode
1611 }
1612
1613 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1614 self.collaboration_hub.as_deref()
1615 }
1616
1617 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1618 self.collaboration_hub = Some(hub);
1619 }
1620
1621 pub fn set_custom_context_menu(
1622 &mut self,
1623 f: impl 'static
1624 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1625 ) {
1626 self.custom_context_menu = Some(Box::new(f))
1627 }
1628
1629 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1630 self.completion_provider = provider;
1631 }
1632
1633 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1634 self.semantics_provider.clone()
1635 }
1636
1637 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1638 self.semantics_provider = provider;
1639 }
1640
1641 pub fn set_inline_completion_provider<T>(
1642 &mut self,
1643 provider: Option<Model<T>>,
1644 cx: &mut ViewContext<Self>,
1645 ) where
1646 T: InlineCompletionProvider,
1647 {
1648 self.inline_completion_provider =
1649 provider.map(|provider| RegisteredInlineCompletionProvider {
1650 _subscription: cx.observe(&provider, |this, _, cx| {
1651 if this.focus_handle.is_focused(cx) {
1652 this.update_visible_inline_completion(cx);
1653 }
1654 }),
1655 provider: Arc::new(provider),
1656 });
1657 self.refresh_inline_completion(false, false, cx);
1658 }
1659
1660 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1661 self.placeholder_text.as_deref()
1662 }
1663
1664 pub fn set_placeholder_text(
1665 &mut self,
1666 placeholder_text: impl Into<Arc<str>>,
1667 cx: &mut ViewContext<Self>,
1668 ) {
1669 let placeholder_text = Some(placeholder_text.into());
1670 if self.placeholder_text != placeholder_text {
1671 self.placeholder_text = placeholder_text;
1672 cx.notify();
1673 }
1674 }
1675
1676 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1677 self.cursor_shape = cursor_shape;
1678
1679 // Disrupt blink for immediate user feedback that the cursor shape has changed
1680 self.blink_manager.update(cx, BlinkManager::show_cursor);
1681
1682 cx.notify();
1683 }
1684
1685 pub fn set_current_line_highlight(
1686 &mut self,
1687 current_line_highlight: Option<CurrentLineHighlight>,
1688 ) {
1689 self.current_line_highlight = current_line_highlight;
1690 }
1691
1692 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1693 self.collapse_matches = collapse_matches;
1694 }
1695
1696 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1697 let buffers = self.buffer.read(cx).all_buffers();
1698 let Some(lsp_store) = self.lsp_store(cx) else {
1699 return;
1700 };
1701 lsp_store.update(cx, |lsp_store, cx| {
1702 for buffer in buffers {
1703 self.registered_buffers
1704 .entry(buffer.read(cx).remote_id())
1705 .or_insert_with(|| {
1706 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1707 });
1708 }
1709 })
1710 }
1711
1712 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1713 if self.collapse_matches {
1714 return range.start..range.start;
1715 }
1716 range.clone()
1717 }
1718
1719 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1720 if self.display_map.read(cx).clip_at_line_ends != clip {
1721 self.display_map
1722 .update(cx, |map, _| map.clip_at_line_ends = clip);
1723 }
1724 }
1725
1726 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1727 self.input_enabled = input_enabled;
1728 }
1729
1730 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1731 self.enable_inline_completions = enabled;
1732 }
1733
1734 pub fn set_autoindent(&mut self, autoindent: bool) {
1735 if autoindent {
1736 self.autoindent_mode = Some(AutoindentMode::EachLine);
1737 } else {
1738 self.autoindent_mode = None;
1739 }
1740 }
1741
1742 pub fn read_only(&self, cx: &AppContext) -> bool {
1743 self.read_only || self.buffer.read(cx).read_only()
1744 }
1745
1746 pub fn set_read_only(&mut self, read_only: bool) {
1747 self.read_only = read_only;
1748 }
1749
1750 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1751 self.use_autoclose = autoclose;
1752 }
1753
1754 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1755 self.use_auto_surround = auto_surround;
1756 }
1757
1758 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1759 self.auto_replace_emoji_shortcode = auto_replace;
1760 }
1761
1762 pub fn toggle_inline_completions(
1763 &mut self,
1764 _: &ToggleInlineCompletions,
1765 cx: &mut ViewContext<Self>,
1766 ) {
1767 if self.show_inline_completions_override.is_some() {
1768 self.set_show_inline_completions(None, cx);
1769 } else {
1770 let cursor = self.selections.newest_anchor().head();
1771 if let Some((buffer, cursor_buffer_position)) =
1772 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1773 {
1774 let show_inline_completions =
1775 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1776 self.set_show_inline_completions(Some(show_inline_completions), cx);
1777 }
1778 }
1779 }
1780
1781 pub fn set_show_inline_completions(
1782 &mut self,
1783 show_inline_completions: Option<bool>,
1784 cx: &mut ViewContext<Self>,
1785 ) {
1786 self.show_inline_completions_override = show_inline_completions;
1787 self.refresh_inline_completion(false, true, cx);
1788 }
1789
1790 pub fn inline_completions_enabled(&self, cx: &AppContext) -> bool {
1791 let cursor = self.selections.newest_anchor().head();
1792 if let Some((buffer, buffer_position)) =
1793 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1794 {
1795 self.should_show_inline_completions(&buffer, buffer_position, cx)
1796 } else {
1797 false
1798 }
1799 }
1800
1801 fn should_show_inline_completions(
1802 &self,
1803 buffer: &Model<Buffer>,
1804 buffer_position: language::Anchor,
1805 cx: &AppContext,
1806 ) -> bool {
1807 if !self.snippet_stack.is_empty() {
1808 return false;
1809 }
1810
1811 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1812 return false;
1813 }
1814
1815 if let Some(provider) = self.inline_completion_provider() {
1816 if let Some(show_inline_completions) = self.show_inline_completions_override {
1817 show_inline_completions
1818 } else {
1819 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1820 }
1821 } else {
1822 false
1823 }
1824 }
1825
1826 fn inline_completions_disabled_in_scope(
1827 &self,
1828 buffer: &Model<Buffer>,
1829 buffer_position: language::Anchor,
1830 cx: &AppContext,
1831 ) -> bool {
1832 let snapshot = buffer.read(cx).snapshot();
1833 let settings = snapshot.settings_at(buffer_position, cx);
1834
1835 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1836 return false;
1837 };
1838
1839 scope.override_name().map_or(false, |scope_name| {
1840 settings
1841 .inline_completions_disabled_in
1842 .iter()
1843 .any(|s| s == scope_name)
1844 })
1845 }
1846
1847 pub fn set_use_modal_editing(&mut self, to: bool) {
1848 self.use_modal_editing = to;
1849 }
1850
1851 pub fn use_modal_editing(&self) -> bool {
1852 self.use_modal_editing
1853 }
1854
1855 fn selections_did_change(
1856 &mut self,
1857 local: bool,
1858 old_cursor_position: &Anchor,
1859 show_completions: bool,
1860 cx: &mut ViewContext<Self>,
1861 ) {
1862 cx.invalidate_character_coordinates();
1863
1864 // Copy selections to primary selection buffer
1865 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1866 if local {
1867 let selections = self.selections.all::<usize>(cx);
1868 let buffer_handle = self.buffer.read(cx).read(cx);
1869
1870 let mut text = String::new();
1871 for (index, selection) in selections.iter().enumerate() {
1872 let text_for_selection = buffer_handle
1873 .text_for_range(selection.start..selection.end)
1874 .collect::<String>();
1875
1876 text.push_str(&text_for_selection);
1877 if index != selections.len() - 1 {
1878 text.push('\n');
1879 }
1880 }
1881
1882 if !text.is_empty() {
1883 cx.write_to_primary(ClipboardItem::new_string(text));
1884 }
1885 }
1886
1887 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1888 self.buffer.update(cx, |buffer, cx| {
1889 buffer.set_active_selections(
1890 &self.selections.disjoint_anchors(),
1891 self.selections.line_mode,
1892 self.cursor_shape,
1893 cx,
1894 )
1895 });
1896 }
1897 let display_map = self
1898 .display_map
1899 .update(cx, |display_map, cx| display_map.snapshot(cx));
1900 let buffer = &display_map.buffer_snapshot;
1901 self.add_selections_state = None;
1902 self.select_next_state = None;
1903 self.select_prev_state = None;
1904 self.select_larger_syntax_node_stack.clear();
1905 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1906 self.snippet_stack
1907 .invalidate(&self.selections.disjoint_anchors(), buffer);
1908 self.take_rename(false, cx);
1909
1910 let new_cursor_position = self.selections.newest_anchor().head();
1911
1912 self.push_to_nav_history(
1913 *old_cursor_position,
1914 Some(new_cursor_position.to_point(buffer)),
1915 cx,
1916 );
1917
1918 if local {
1919 let new_cursor_position = self.selections.newest_anchor().head();
1920 let mut context_menu = self.context_menu.borrow_mut();
1921 let completion_menu = match context_menu.as_ref() {
1922 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1923 _ => {
1924 *context_menu = None;
1925 None
1926 }
1927 };
1928
1929 if let Some(completion_menu) = completion_menu {
1930 let cursor_position = new_cursor_position.to_offset(buffer);
1931 let (word_range, kind) =
1932 buffer.surrounding_word(completion_menu.initial_position, true);
1933 if kind == Some(CharKind::Word)
1934 && word_range.to_inclusive().contains(&cursor_position)
1935 {
1936 let mut completion_menu = completion_menu.clone();
1937 drop(context_menu);
1938
1939 let query = Self::completion_query(buffer, cursor_position);
1940 cx.spawn(move |this, mut cx| async move {
1941 completion_menu
1942 .filter(query.as_deref(), cx.background_executor().clone())
1943 .await;
1944
1945 this.update(&mut cx, |this, cx| {
1946 let mut context_menu = this.context_menu.borrow_mut();
1947 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1948 else {
1949 return;
1950 };
1951
1952 if menu.id > completion_menu.id {
1953 return;
1954 }
1955
1956 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1957 drop(context_menu);
1958 cx.notify();
1959 })
1960 })
1961 .detach();
1962
1963 if show_completions {
1964 self.show_completions(&ShowCompletions { trigger: None }, cx);
1965 }
1966 } else {
1967 drop(context_menu);
1968 self.hide_context_menu(cx);
1969 }
1970 } else {
1971 drop(context_menu);
1972 }
1973
1974 hide_hover(self, cx);
1975
1976 if old_cursor_position.to_display_point(&display_map).row()
1977 != new_cursor_position.to_display_point(&display_map).row()
1978 {
1979 self.available_code_actions.take();
1980 }
1981 self.refresh_code_actions(cx);
1982 self.refresh_document_highlights(cx);
1983 refresh_matching_bracket_highlights(self, cx);
1984 self.update_visible_inline_completion(cx);
1985 linked_editing_ranges::refresh_linked_ranges(self, cx);
1986 if self.git_blame_inline_enabled {
1987 self.start_inline_blame_timer(cx);
1988 }
1989 }
1990
1991 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1992 cx.emit(EditorEvent::SelectionsChanged { local });
1993
1994 if self.selections.disjoint_anchors().len() == 1 {
1995 cx.emit(SearchEvent::ActiveMatchChanged)
1996 }
1997 cx.notify();
1998 }
1999
2000 pub fn change_selections<R>(
2001 &mut self,
2002 autoscroll: Option<Autoscroll>,
2003 cx: &mut ViewContext<Self>,
2004 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2005 ) -> R {
2006 self.change_selections_inner(autoscroll, true, cx, change)
2007 }
2008
2009 pub fn change_selections_inner<R>(
2010 &mut self,
2011 autoscroll: Option<Autoscroll>,
2012 request_completions: bool,
2013 cx: &mut ViewContext<Self>,
2014 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2015 ) -> R {
2016 let old_cursor_position = self.selections.newest_anchor().head();
2017 self.push_to_selection_history();
2018
2019 let (changed, result) = self.selections.change_with(cx, change);
2020
2021 if changed {
2022 if let Some(autoscroll) = autoscroll {
2023 self.request_autoscroll(autoscroll, cx);
2024 }
2025 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2026
2027 if self.should_open_signature_help_automatically(
2028 &old_cursor_position,
2029 self.signature_help_state.backspace_pressed(),
2030 cx,
2031 ) {
2032 self.show_signature_help(&ShowSignatureHelp, cx);
2033 }
2034 self.signature_help_state.set_backspace_pressed(false);
2035 }
2036
2037 result
2038 }
2039
2040 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2041 where
2042 I: IntoIterator<Item = (Range<S>, T)>,
2043 S: ToOffset,
2044 T: Into<Arc<str>>,
2045 {
2046 if self.read_only(cx) {
2047 return;
2048 }
2049
2050 self.buffer
2051 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2052 }
2053
2054 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2055 where
2056 I: IntoIterator<Item = (Range<S>, T)>,
2057 S: ToOffset,
2058 T: Into<Arc<str>>,
2059 {
2060 if self.read_only(cx) {
2061 return;
2062 }
2063
2064 self.buffer.update(cx, |buffer, cx| {
2065 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2066 });
2067 }
2068
2069 pub fn edit_with_block_indent<I, S, T>(
2070 &mut self,
2071 edits: I,
2072 original_indent_columns: Vec<u32>,
2073 cx: &mut ViewContext<Self>,
2074 ) where
2075 I: IntoIterator<Item = (Range<S>, T)>,
2076 S: ToOffset,
2077 T: Into<Arc<str>>,
2078 {
2079 if self.read_only(cx) {
2080 return;
2081 }
2082
2083 self.buffer.update(cx, |buffer, cx| {
2084 buffer.edit(
2085 edits,
2086 Some(AutoindentMode::Block {
2087 original_indent_columns,
2088 }),
2089 cx,
2090 )
2091 });
2092 }
2093
2094 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2095 self.hide_context_menu(cx);
2096
2097 match phase {
2098 SelectPhase::Begin {
2099 position,
2100 add,
2101 click_count,
2102 } => self.begin_selection(position, add, click_count, cx),
2103 SelectPhase::BeginColumnar {
2104 position,
2105 goal_column,
2106 reset,
2107 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2108 SelectPhase::Extend {
2109 position,
2110 click_count,
2111 } => self.extend_selection(position, click_count, cx),
2112 SelectPhase::Update {
2113 position,
2114 goal_column,
2115 scroll_delta,
2116 } => self.update_selection(position, goal_column, scroll_delta, cx),
2117 SelectPhase::End => self.end_selection(cx),
2118 }
2119 }
2120
2121 fn extend_selection(
2122 &mut self,
2123 position: DisplayPoint,
2124 click_count: usize,
2125 cx: &mut ViewContext<Self>,
2126 ) {
2127 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2128 let tail = self.selections.newest::<usize>(cx).tail();
2129 self.begin_selection(position, false, click_count, cx);
2130
2131 let position = position.to_offset(&display_map, Bias::Left);
2132 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2133
2134 let mut pending_selection = self
2135 .selections
2136 .pending_anchor()
2137 .expect("extend_selection not called with pending selection");
2138 if position >= tail {
2139 pending_selection.start = tail_anchor;
2140 } else {
2141 pending_selection.end = tail_anchor;
2142 pending_selection.reversed = true;
2143 }
2144
2145 let mut pending_mode = self.selections.pending_mode().unwrap();
2146 match &mut pending_mode {
2147 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2148 _ => {}
2149 }
2150
2151 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2152 s.set_pending(pending_selection, pending_mode)
2153 });
2154 }
2155
2156 fn begin_selection(
2157 &mut self,
2158 position: DisplayPoint,
2159 add: bool,
2160 click_count: usize,
2161 cx: &mut ViewContext<Self>,
2162 ) {
2163 if !self.focus_handle.is_focused(cx) {
2164 self.last_focused_descendant = None;
2165 cx.focus(&self.focus_handle);
2166 }
2167
2168 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2169 let buffer = &display_map.buffer_snapshot;
2170 let newest_selection = self.selections.newest_anchor().clone();
2171 let position = display_map.clip_point(position, Bias::Left);
2172
2173 let start;
2174 let end;
2175 let mode;
2176 let mut auto_scroll;
2177 match click_count {
2178 1 => {
2179 start = buffer.anchor_before(position.to_point(&display_map));
2180 end = start;
2181 mode = SelectMode::Character;
2182 auto_scroll = true;
2183 }
2184 2 => {
2185 let range = movement::surrounding_word(&display_map, position);
2186 start = buffer.anchor_before(range.start.to_point(&display_map));
2187 end = buffer.anchor_before(range.end.to_point(&display_map));
2188 mode = SelectMode::Word(start..end);
2189 auto_scroll = true;
2190 }
2191 3 => {
2192 let position = display_map
2193 .clip_point(position, Bias::Left)
2194 .to_point(&display_map);
2195 let line_start = display_map.prev_line_boundary(position).0;
2196 let next_line_start = buffer.clip_point(
2197 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2198 Bias::Left,
2199 );
2200 start = buffer.anchor_before(line_start);
2201 end = buffer.anchor_before(next_line_start);
2202 mode = SelectMode::Line(start..end);
2203 auto_scroll = true;
2204 }
2205 _ => {
2206 start = buffer.anchor_before(0);
2207 end = buffer.anchor_before(buffer.len());
2208 mode = SelectMode::All;
2209 auto_scroll = false;
2210 }
2211 }
2212 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2213
2214 let point_to_delete: Option<usize> = {
2215 let selected_points: Vec<Selection<Point>> =
2216 self.selections.disjoint_in_range(start..end, cx);
2217
2218 if !add || click_count > 1 {
2219 None
2220 } else if !selected_points.is_empty() {
2221 Some(selected_points[0].id)
2222 } else {
2223 let clicked_point_already_selected =
2224 self.selections.disjoint.iter().find(|selection| {
2225 selection.start.to_point(buffer) == start.to_point(buffer)
2226 || selection.end.to_point(buffer) == end.to_point(buffer)
2227 });
2228
2229 clicked_point_already_selected.map(|selection| selection.id)
2230 }
2231 };
2232
2233 let selections_count = self.selections.count();
2234
2235 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2236 if let Some(point_to_delete) = point_to_delete {
2237 s.delete(point_to_delete);
2238
2239 if selections_count == 1 {
2240 s.set_pending_anchor_range(start..end, mode);
2241 }
2242 } else {
2243 if !add {
2244 s.clear_disjoint();
2245 } else if click_count > 1 {
2246 s.delete(newest_selection.id)
2247 }
2248
2249 s.set_pending_anchor_range(start..end, mode);
2250 }
2251 });
2252 }
2253
2254 fn begin_columnar_selection(
2255 &mut self,
2256 position: DisplayPoint,
2257 goal_column: u32,
2258 reset: bool,
2259 cx: &mut ViewContext<Self>,
2260 ) {
2261 if !self.focus_handle.is_focused(cx) {
2262 self.last_focused_descendant = None;
2263 cx.focus(&self.focus_handle);
2264 }
2265
2266 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2267
2268 if reset {
2269 let pointer_position = display_map
2270 .buffer_snapshot
2271 .anchor_before(position.to_point(&display_map));
2272
2273 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2274 s.clear_disjoint();
2275 s.set_pending_anchor_range(
2276 pointer_position..pointer_position,
2277 SelectMode::Character,
2278 );
2279 });
2280 }
2281
2282 let tail = self.selections.newest::<Point>(cx).tail();
2283 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2284
2285 if !reset {
2286 self.select_columns(
2287 tail.to_display_point(&display_map),
2288 position,
2289 goal_column,
2290 &display_map,
2291 cx,
2292 );
2293 }
2294 }
2295
2296 fn update_selection(
2297 &mut self,
2298 position: DisplayPoint,
2299 goal_column: u32,
2300 scroll_delta: gpui::Point<f32>,
2301 cx: &mut ViewContext<Self>,
2302 ) {
2303 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2304
2305 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2306 let tail = tail.to_display_point(&display_map);
2307 self.select_columns(tail, position, goal_column, &display_map, cx);
2308 } else if let Some(mut pending) = self.selections.pending_anchor() {
2309 let buffer = self.buffer.read(cx).snapshot(cx);
2310 let head;
2311 let tail;
2312 let mode = self.selections.pending_mode().unwrap();
2313 match &mode {
2314 SelectMode::Character => {
2315 head = position.to_point(&display_map);
2316 tail = pending.tail().to_point(&buffer);
2317 }
2318 SelectMode::Word(original_range) => {
2319 let original_display_range = original_range.start.to_display_point(&display_map)
2320 ..original_range.end.to_display_point(&display_map);
2321 let original_buffer_range = original_display_range.start.to_point(&display_map)
2322 ..original_display_range.end.to_point(&display_map);
2323 if movement::is_inside_word(&display_map, position)
2324 || original_display_range.contains(&position)
2325 {
2326 let word_range = movement::surrounding_word(&display_map, position);
2327 if word_range.start < original_display_range.start {
2328 head = word_range.start.to_point(&display_map);
2329 } else {
2330 head = word_range.end.to_point(&display_map);
2331 }
2332 } else {
2333 head = position.to_point(&display_map);
2334 }
2335
2336 if head <= original_buffer_range.start {
2337 tail = original_buffer_range.end;
2338 } else {
2339 tail = original_buffer_range.start;
2340 }
2341 }
2342 SelectMode::Line(original_range) => {
2343 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2344
2345 let position = display_map
2346 .clip_point(position, Bias::Left)
2347 .to_point(&display_map);
2348 let line_start = display_map.prev_line_boundary(position).0;
2349 let next_line_start = buffer.clip_point(
2350 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2351 Bias::Left,
2352 );
2353
2354 if line_start < original_range.start {
2355 head = line_start
2356 } else {
2357 head = next_line_start
2358 }
2359
2360 if head <= original_range.start {
2361 tail = original_range.end;
2362 } else {
2363 tail = original_range.start;
2364 }
2365 }
2366 SelectMode::All => {
2367 return;
2368 }
2369 };
2370
2371 if head < tail {
2372 pending.start = buffer.anchor_before(head);
2373 pending.end = buffer.anchor_before(tail);
2374 pending.reversed = true;
2375 } else {
2376 pending.start = buffer.anchor_before(tail);
2377 pending.end = buffer.anchor_before(head);
2378 pending.reversed = false;
2379 }
2380
2381 self.change_selections(None, cx, |s| {
2382 s.set_pending(pending, mode);
2383 });
2384 } else {
2385 log::error!("update_selection dispatched with no pending selection");
2386 return;
2387 }
2388
2389 self.apply_scroll_delta(scroll_delta, cx);
2390 cx.notify();
2391 }
2392
2393 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2394 self.columnar_selection_tail.take();
2395 if self.selections.pending_anchor().is_some() {
2396 let selections = self.selections.all::<usize>(cx);
2397 self.change_selections(None, cx, |s| {
2398 s.select(selections);
2399 s.clear_pending();
2400 });
2401 }
2402 }
2403
2404 fn select_columns(
2405 &mut self,
2406 tail: DisplayPoint,
2407 head: DisplayPoint,
2408 goal_column: u32,
2409 display_map: &DisplaySnapshot,
2410 cx: &mut ViewContext<Self>,
2411 ) {
2412 let start_row = cmp::min(tail.row(), head.row());
2413 let end_row = cmp::max(tail.row(), head.row());
2414 let start_column = cmp::min(tail.column(), goal_column);
2415 let end_column = cmp::max(tail.column(), goal_column);
2416 let reversed = start_column < tail.column();
2417
2418 let selection_ranges = (start_row.0..=end_row.0)
2419 .map(DisplayRow)
2420 .filter_map(|row| {
2421 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2422 let start = display_map
2423 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2424 .to_point(display_map);
2425 let end = display_map
2426 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2427 .to_point(display_map);
2428 if reversed {
2429 Some(end..start)
2430 } else {
2431 Some(start..end)
2432 }
2433 } else {
2434 None
2435 }
2436 })
2437 .collect::<Vec<_>>();
2438
2439 self.change_selections(None, cx, |s| {
2440 s.select_ranges(selection_ranges);
2441 });
2442 cx.notify();
2443 }
2444
2445 pub fn has_pending_nonempty_selection(&self) -> bool {
2446 let pending_nonempty_selection = match self.selections.pending_anchor() {
2447 Some(Selection { start, end, .. }) => start != end,
2448 None => false,
2449 };
2450
2451 pending_nonempty_selection
2452 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2453 }
2454
2455 pub fn has_pending_selection(&self) -> bool {
2456 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2457 }
2458
2459 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2460 if self.clear_expanded_diff_hunks(cx) {
2461 cx.notify();
2462 return;
2463 }
2464 if self.dismiss_menus_and_popups(true, cx) {
2465 return;
2466 }
2467
2468 if self.mode == EditorMode::Full
2469 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2470 {
2471 return;
2472 }
2473
2474 cx.propagate();
2475 }
2476
2477 pub fn dismiss_menus_and_popups(
2478 &mut self,
2479 should_report_inline_completion_event: bool,
2480 cx: &mut ViewContext<Self>,
2481 ) -> bool {
2482 if self.take_rename(false, cx).is_some() {
2483 return true;
2484 }
2485
2486 if hide_hover(self, cx) {
2487 return true;
2488 }
2489
2490 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2491 return true;
2492 }
2493
2494 if self.hide_context_menu(cx).is_some() {
2495 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2496 self.update_visible_inline_completion(cx);
2497 }
2498 return true;
2499 }
2500
2501 if self.mouse_context_menu.take().is_some() {
2502 return true;
2503 }
2504
2505 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2506 return true;
2507 }
2508
2509 if self.snippet_stack.pop().is_some() {
2510 return true;
2511 }
2512
2513 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2514 self.dismiss_diagnostics(cx);
2515 return true;
2516 }
2517
2518 false
2519 }
2520
2521 fn linked_editing_ranges_for(
2522 &self,
2523 selection: Range<text::Anchor>,
2524 cx: &AppContext,
2525 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2526 if self.linked_edit_ranges.is_empty() {
2527 return None;
2528 }
2529 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2530 selection.end.buffer_id.and_then(|end_buffer_id| {
2531 if selection.start.buffer_id != Some(end_buffer_id) {
2532 return None;
2533 }
2534 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2535 let snapshot = buffer.read(cx).snapshot();
2536 self.linked_edit_ranges
2537 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2538 .map(|ranges| (ranges, snapshot, buffer))
2539 })?;
2540 use text::ToOffset as TO;
2541 // find offset from the start of current range to current cursor position
2542 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2543
2544 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2545 let start_difference = start_offset - start_byte_offset;
2546 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2547 let end_difference = end_offset - start_byte_offset;
2548 // Current range has associated linked ranges.
2549 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2550 for range in linked_ranges.iter() {
2551 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2552 let end_offset = start_offset + end_difference;
2553 let start_offset = start_offset + start_difference;
2554 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2555 continue;
2556 }
2557 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2558 if s.start.buffer_id != selection.start.buffer_id
2559 || s.end.buffer_id != selection.end.buffer_id
2560 {
2561 return false;
2562 }
2563 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2564 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2565 }) {
2566 continue;
2567 }
2568 let start = buffer_snapshot.anchor_after(start_offset);
2569 let end = buffer_snapshot.anchor_after(end_offset);
2570 linked_edits
2571 .entry(buffer.clone())
2572 .or_default()
2573 .push(start..end);
2574 }
2575 Some(linked_edits)
2576 }
2577
2578 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2579 let text: Arc<str> = text.into();
2580
2581 if self.read_only(cx) {
2582 return;
2583 }
2584
2585 let selections = self.selections.all_adjusted(cx);
2586 let mut bracket_inserted = false;
2587 let mut edits = Vec::new();
2588 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2589 let mut new_selections = Vec::with_capacity(selections.len());
2590 let mut new_autoclose_regions = Vec::new();
2591 let snapshot = self.buffer.read(cx).read(cx);
2592
2593 for (selection, autoclose_region) in
2594 self.selections_with_autoclose_regions(selections, &snapshot)
2595 {
2596 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2597 // Determine if the inserted text matches the opening or closing
2598 // bracket of any of this language's bracket pairs.
2599 let mut bracket_pair = None;
2600 let mut is_bracket_pair_start = false;
2601 let mut is_bracket_pair_end = false;
2602 if !text.is_empty() {
2603 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2604 // and they are removing the character that triggered IME popup.
2605 for (pair, enabled) in scope.brackets() {
2606 if !pair.close && !pair.surround {
2607 continue;
2608 }
2609
2610 if enabled && pair.start.ends_with(text.as_ref()) {
2611 let prefix_len = pair.start.len() - text.len();
2612 let preceding_text_matches_prefix = prefix_len == 0
2613 || (selection.start.column >= (prefix_len as u32)
2614 && snapshot.contains_str_at(
2615 Point::new(
2616 selection.start.row,
2617 selection.start.column - (prefix_len as u32),
2618 ),
2619 &pair.start[..prefix_len],
2620 ));
2621 if preceding_text_matches_prefix {
2622 bracket_pair = Some(pair.clone());
2623 is_bracket_pair_start = true;
2624 break;
2625 }
2626 }
2627 if pair.end.as_str() == text.as_ref() {
2628 bracket_pair = Some(pair.clone());
2629 is_bracket_pair_end = true;
2630 break;
2631 }
2632 }
2633 }
2634
2635 if let Some(bracket_pair) = bracket_pair {
2636 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2637 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2638 let auto_surround =
2639 self.use_auto_surround && snapshot_settings.use_auto_surround;
2640 if selection.is_empty() {
2641 if is_bracket_pair_start {
2642 // If the inserted text is a suffix of an opening bracket and the
2643 // selection is preceded by the rest of the opening bracket, then
2644 // insert the closing bracket.
2645 let following_text_allows_autoclose = snapshot
2646 .chars_at(selection.start)
2647 .next()
2648 .map_or(true, |c| scope.should_autoclose_before(c));
2649
2650 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2651 && bracket_pair.start.len() == 1
2652 {
2653 let target = bracket_pair.start.chars().next().unwrap();
2654 let current_line_count = snapshot
2655 .reversed_chars_at(selection.start)
2656 .take_while(|&c| c != '\n')
2657 .filter(|&c| c == target)
2658 .count();
2659 current_line_count % 2 == 1
2660 } else {
2661 false
2662 };
2663
2664 if autoclose
2665 && bracket_pair.close
2666 && following_text_allows_autoclose
2667 && !is_closing_quote
2668 {
2669 let anchor = snapshot.anchor_before(selection.end);
2670 new_selections.push((selection.map(|_| anchor), text.len()));
2671 new_autoclose_regions.push((
2672 anchor,
2673 text.len(),
2674 selection.id,
2675 bracket_pair.clone(),
2676 ));
2677 edits.push((
2678 selection.range(),
2679 format!("{}{}", text, bracket_pair.end).into(),
2680 ));
2681 bracket_inserted = true;
2682 continue;
2683 }
2684 }
2685
2686 if let Some(region) = autoclose_region {
2687 // If the selection is followed by an auto-inserted closing bracket,
2688 // then don't insert that closing bracket again; just move the selection
2689 // past the closing bracket.
2690 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2691 && text.as_ref() == region.pair.end.as_str();
2692 if should_skip {
2693 let anchor = snapshot.anchor_after(selection.end);
2694 new_selections
2695 .push((selection.map(|_| anchor), region.pair.end.len()));
2696 continue;
2697 }
2698 }
2699
2700 let always_treat_brackets_as_autoclosed = snapshot
2701 .settings_at(selection.start, cx)
2702 .always_treat_brackets_as_autoclosed;
2703 if always_treat_brackets_as_autoclosed
2704 && is_bracket_pair_end
2705 && snapshot.contains_str_at(selection.end, text.as_ref())
2706 {
2707 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2708 // and the inserted text is a closing bracket and the selection is followed
2709 // by the closing bracket then move the selection past the closing bracket.
2710 let anchor = snapshot.anchor_after(selection.end);
2711 new_selections.push((selection.map(|_| anchor), text.len()));
2712 continue;
2713 }
2714 }
2715 // If an opening bracket is 1 character long and is typed while
2716 // text is selected, then surround that text with the bracket pair.
2717 else if auto_surround
2718 && bracket_pair.surround
2719 && is_bracket_pair_start
2720 && bracket_pair.start.chars().count() == 1
2721 {
2722 edits.push((selection.start..selection.start, text.clone()));
2723 edits.push((
2724 selection.end..selection.end,
2725 bracket_pair.end.as_str().into(),
2726 ));
2727 bracket_inserted = true;
2728 new_selections.push((
2729 Selection {
2730 id: selection.id,
2731 start: snapshot.anchor_after(selection.start),
2732 end: snapshot.anchor_before(selection.end),
2733 reversed: selection.reversed,
2734 goal: selection.goal,
2735 },
2736 0,
2737 ));
2738 continue;
2739 }
2740 }
2741 }
2742
2743 if self.auto_replace_emoji_shortcode
2744 && selection.is_empty()
2745 && text.as_ref().ends_with(':')
2746 {
2747 if let Some(possible_emoji_short_code) =
2748 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2749 {
2750 if !possible_emoji_short_code.is_empty() {
2751 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2752 let emoji_shortcode_start = Point::new(
2753 selection.start.row,
2754 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2755 );
2756
2757 // Remove shortcode from buffer
2758 edits.push((
2759 emoji_shortcode_start..selection.start,
2760 "".to_string().into(),
2761 ));
2762 new_selections.push((
2763 Selection {
2764 id: selection.id,
2765 start: snapshot.anchor_after(emoji_shortcode_start),
2766 end: snapshot.anchor_before(selection.start),
2767 reversed: selection.reversed,
2768 goal: selection.goal,
2769 },
2770 0,
2771 ));
2772
2773 // Insert emoji
2774 let selection_start_anchor = snapshot.anchor_after(selection.start);
2775 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2776 edits.push((selection.start..selection.end, emoji.to_string().into()));
2777
2778 continue;
2779 }
2780 }
2781 }
2782 }
2783
2784 // If not handling any auto-close operation, then just replace the selected
2785 // text with the given input and move the selection to the end of the
2786 // newly inserted text.
2787 let anchor = snapshot.anchor_after(selection.end);
2788 if !self.linked_edit_ranges.is_empty() {
2789 let start_anchor = snapshot.anchor_before(selection.start);
2790
2791 let is_word_char = text.chars().next().map_or(true, |char| {
2792 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2793 classifier.is_word(char)
2794 });
2795
2796 if is_word_char {
2797 if let Some(ranges) = self
2798 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2799 {
2800 for (buffer, edits) in ranges {
2801 linked_edits
2802 .entry(buffer.clone())
2803 .or_default()
2804 .extend(edits.into_iter().map(|range| (range, text.clone())));
2805 }
2806 }
2807 }
2808 }
2809
2810 new_selections.push((selection.map(|_| anchor), 0));
2811 edits.push((selection.start..selection.end, text.clone()));
2812 }
2813
2814 drop(snapshot);
2815
2816 self.transact(cx, |this, cx| {
2817 this.buffer.update(cx, |buffer, cx| {
2818 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2819 });
2820 for (buffer, edits) in linked_edits {
2821 buffer.update(cx, |buffer, cx| {
2822 let snapshot = buffer.snapshot();
2823 let edits = edits
2824 .into_iter()
2825 .map(|(range, text)| {
2826 use text::ToPoint as TP;
2827 let end_point = TP::to_point(&range.end, &snapshot);
2828 let start_point = TP::to_point(&range.start, &snapshot);
2829 (start_point..end_point, text)
2830 })
2831 .sorted_by_key(|(range, _)| range.start)
2832 .collect::<Vec<_>>();
2833 buffer.edit(edits, None, cx);
2834 })
2835 }
2836 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2837 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2838 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2839 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2840 .zip(new_selection_deltas)
2841 .map(|(selection, delta)| Selection {
2842 id: selection.id,
2843 start: selection.start + delta,
2844 end: selection.end + delta,
2845 reversed: selection.reversed,
2846 goal: SelectionGoal::None,
2847 })
2848 .collect::<Vec<_>>();
2849
2850 let mut i = 0;
2851 for (position, delta, selection_id, pair) in new_autoclose_regions {
2852 let position = position.to_offset(&map.buffer_snapshot) + delta;
2853 let start = map.buffer_snapshot.anchor_before(position);
2854 let end = map.buffer_snapshot.anchor_after(position);
2855 while let Some(existing_state) = this.autoclose_regions.get(i) {
2856 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2857 Ordering::Less => i += 1,
2858 Ordering::Greater => break,
2859 Ordering::Equal => {
2860 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2861 Ordering::Less => i += 1,
2862 Ordering::Equal => break,
2863 Ordering::Greater => break,
2864 }
2865 }
2866 }
2867 }
2868 this.autoclose_regions.insert(
2869 i,
2870 AutocloseRegion {
2871 selection_id,
2872 range: start..end,
2873 pair,
2874 },
2875 );
2876 }
2877
2878 let had_active_inline_completion = this.has_active_inline_completion();
2879 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2880 s.select(new_selections)
2881 });
2882
2883 if !bracket_inserted {
2884 if let Some(on_type_format_task) =
2885 this.trigger_on_type_formatting(text.to_string(), cx)
2886 {
2887 on_type_format_task.detach_and_log_err(cx);
2888 }
2889 }
2890
2891 let editor_settings = EditorSettings::get_global(cx);
2892 if bracket_inserted
2893 && (editor_settings.auto_signature_help
2894 || editor_settings.show_signature_help_after_edits)
2895 {
2896 this.show_signature_help(&ShowSignatureHelp, cx);
2897 }
2898
2899 let trigger_in_words =
2900 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2901 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2902 linked_editing_ranges::refresh_linked_ranges(this, cx);
2903 this.refresh_inline_completion(true, false, cx);
2904 });
2905 }
2906
2907 fn find_possible_emoji_shortcode_at_position(
2908 snapshot: &MultiBufferSnapshot,
2909 position: Point,
2910 ) -> Option<String> {
2911 let mut chars = Vec::new();
2912 let mut found_colon = false;
2913 for char in snapshot.reversed_chars_at(position).take(100) {
2914 // Found a possible emoji shortcode in the middle of the buffer
2915 if found_colon {
2916 if char.is_whitespace() {
2917 chars.reverse();
2918 return Some(chars.iter().collect());
2919 }
2920 // If the previous character is not a whitespace, we are in the middle of a word
2921 // and we only want to complete the shortcode if the word is made up of other emojis
2922 let mut containing_word = String::new();
2923 for ch in snapshot
2924 .reversed_chars_at(position)
2925 .skip(chars.len() + 1)
2926 .take(100)
2927 {
2928 if ch.is_whitespace() {
2929 break;
2930 }
2931 containing_word.push(ch);
2932 }
2933 let containing_word = containing_word.chars().rev().collect::<String>();
2934 if util::word_consists_of_emojis(containing_word.as_str()) {
2935 chars.reverse();
2936 return Some(chars.iter().collect());
2937 }
2938 }
2939
2940 if char.is_whitespace() || !char.is_ascii() {
2941 return None;
2942 }
2943 if char == ':' {
2944 found_colon = true;
2945 } else {
2946 chars.push(char);
2947 }
2948 }
2949 // Found a possible emoji shortcode at the beginning of the buffer
2950 chars.reverse();
2951 Some(chars.iter().collect())
2952 }
2953
2954 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2955 self.transact(cx, |this, cx| {
2956 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2957 let selections = this.selections.all::<usize>(cx);
2958 let multi_buffer = this.buffer.read(cx);
2959 let buffer = multi_buffer.snapshot(cx);
2960 selections
2961 .iter()
2962 .map(|selection| {
2963 let start_point = selection.start.to_point(&buffer);
2964 let mut indent =
2965 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2966 indent.len = cmp::min(indent.len, start_point.column);
2967 let start = selection.start;
2968 let end = selection.end;
2969 let selection_is_empty = start == end;
2970 let language_scope = buffer.language_scope_at(start);
2971 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2972 &language_scope
2973 {
2974 let leading_whitespace_len = buffer
2975 .reversed_chars_at(start)
2976 .take_while(|c| c.is_whitespace() && *c != '\n')
2977 .map(|c| c.len_utf8())
2978 .sum::<usize>();
2979
2980 let trailing_whitespace_len = buffer
2981 .chars_at(end)
2982 .take_while(|c| c.is_whitespace() && *c != '\n')
2983 .map(|c| c.len_utf8())
2984 .sum::<usize>();
2985
2986 let insert_extra_newline =
2987 language.brackets().any(|(pair, enabled)| {
2988 let pair_start = pair.start.trim_end();
2989 let pair_end = pair.end.trim_start();
2990
2991 enabled
2992 && pair.newline
2993 && buffer.contains_str_at(
2994 end + trailing_whitespace_len,
2995 pair_end,
2996 )
2997 && buffer.contains_str_at(
2998 (start - leading_whitespace_len)
2999 .saturating_sub(pair_start.len()),
3000 pair_start,
3001 )
3002 });
3003
3004 // Comment extension on newline is allowed only for cursor selections
3005 let comment_delimiter = maybe!({
3006 if !selection_is_empty {
3007 return None;
3008 }
3009
3010 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3011 return None;
3012 }
3013
3014 let delimiters = language.line_comment_prefixes();
3015 let max_len_of_delimiter =
3016 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3017 let (snapshot, range) =
3018 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3019
3020 let mut index_of_first_non_whitespace = 0;
3021 let comment_candidate = snapshot
3022 .chars_for_range(range)
3023 .skip_while(|c| {
3024 let should_skip = c.is_whitespace();
3025 if should_skip {
3026 index_of_first_non_whitespace += 1;
3027 }
3028 should_skip
3029 })
3030 .take(max_len_of_delimiter)
3031 .collect::<String>();
3032 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3033 comment_candidate.starts_with(comment_prefix.as_ref())
3034 })?;
3035 let cursor_is_placed_after_comment_marker =
3036 index_of_first_non_whitespace + comment_prefix.len()
3037 <= start_point.column as usize;
3038 if cursor_is_placed_after_comment_marker {
3039 Some(comment_prefix.clone())
3040 } else {
3041 None
3042 }
3043 });
3044 (comment_delimiter, insert_extra_newline)
3045 } else {
3046 (None, false)
3047 };
3048
3049 let capacity_for_delimiter = comment_delimiter
3050 .as_deref()
3051 .map(str::len)
3052 .unwrap_or_default();
3053 let mut new_text =
3054 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3055 new_text.push('\n');
3056 new_text.extend(indent.chars());
3057 if let Some(delimiter) = &comment_delimiter {
3058 new_text.push_str(delimiter);
3059 }
3060 if insert_extra_newline {
3061 new_text = new_text.repeat(2);
3062 }
3063
3064 let anchor = buffer.anchor_after(end);
3065 let new_selection = selection.map(|_| anchor);
3066 (
3067 (start..end, new_text),
3068 (insert_extra_newline, new_selection),
3069 )
3070 })
3071 .unzip()
3072 };
3073
3074 this.edit_with_autoindent(edits, cx);
3075 let buffer = this.buffer.read(cx).snapshot(cx);
3076 let new_selections = selection_fixup_info
3077 .into_iter()
3078 .map(|(extra_newline_inserted, new_selection)| {
3079 let mut cursor = new_selection.end.to_point(&buffer);
3080 if extra_newline_inserted {
3081 cursor.row -= 1;
3082 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3083 }
3084 new_selection.map(|_| cursor)
3085 })
3086 .collect();
3087
3088 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3089 this.refresh_inline_completion(true, false, cx);
3090 });
3091 }
3092
3093 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3094 let buffer = self.buffer.read(cx);
3095 let snapshot = buffer.snapshot(cx);
3096
3097 let mut edits = Vec::new();
3098 let mut rows = Vec::new();
3099
3100 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3101 let cursor = selection.head();
3102 let row = cursor.row;
3103
3104 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3105
3106 let newline = "\n".to_string();
3107 edits.push((start_of_line..start_of_line, newline));
3108
3109 rows.push(row + rows_inserted as u32);
3110 }
3111
3112 self.transact(cx, |editor, cx| {
3113 editor.edit(edits, cx);
3114
3115 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3116 let mut index = 0;
3117 s.move_cursors_with(|map, _, _| {
3118 let row = rows[index];
3119 index += 1;
3120
3121 let point = Point::new(row, 0);
3122 let boundary = map.next_line_boundary(point).1;
3123 let clipped = map.clip_point(boundary, Bias::Left);
3124
3125 (clipped, SelectionGoal::None)
3126 });
3127 });
3128
3129 let mut indent_edits = Vec::new();
3130 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3131 for row in rows {
3132 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3133 for (row, indent) in indents {
3134 if indent.len == 0 {
3135 continue;
3136 }
3137
3138 let text = match indent.kind {
3139 IndentKind::Space => " ".repeat(indent.len as usize),
3140 IndentKind::Tab => "\t".repeat(indent.len as usize),
3141 };
3142 let point = Point::new(row.0, 0);
3143 indent_edits.push((point..point, text));
3144 }
3145 }
3146 editor.edit(indent_edits, cx);
3147 });
3148 }
3149
3150 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3151 let buffer = self.buffer.read(cx);
3152 let snapshot = buffer.snapshot(cx);
3153
3154 let mut edits = Vec::new();
3155 let mut rows = Vec::new();
3156 let mut rows_inserted = 0;
3157
3158 for selection in self.selections.all_adjusted(cx) {
3159 let cursor = selection.head();
3160 let row = cursor.row;
3161
3162 let point = Point::new(row + 1, 0);
3163 let start_of_line = snapshot.clip_point(point, Bias::Left);
3164
3165 let newline = "\n".to_string();
3166 edits.push((start_of_line..start_of_line, newline));
3167
3168 rows_inserted += 1;
3169 rows.push(row + rows_inserted);
3170 }
3171
3172 self.transact(cx, |editor, cx| {
3173 editor.edit(edits, cx);
3174
3175 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3176 let mut index = 0;
3177 s.move_cursors_with(|map, _, _| {
3178 let row = rows[index];
3179 index += 1;
3180
3181 let point = Point::new(row, 0);
3182 let boundary = map.next_line_boundary(point).1;
3183 let clipped = map.clip_point(boundary, Bias::Left);
3184
3185 (clipped, SelectionGoal::None)
3186 });
3187 });
3188
3189 let mut indent_edits = Vec::new();
3190 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3191 for row in rows {
3192 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3193 for (row, indent) in indents {
3194 if indent.len == 0 {
3195 continue;
3196 }
3197
3198 let text = match indent.kind {
3199 IndentKind::Space => " ".repeat(indent.len as usize),
3200 IndentKind::Tab => "\t".repeat(indent.len as usize),
3201 };
3202 let point = Point::new(row.0, 0);
3203 indent_edits.push((point..point, text));
3204 }
3205 }
3206 editor.edit(indent_edits, cx);
3207 });
3208 }
3209
3210 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3211 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3212 original_indent_columns: Vec::new(),
3213 });
3214 self.insert_with_autoindent_mode(text, autoindent, cx);
3215 }
3216
3217 fn insert_with_autoindent_mode(
3218 &mut self,
3219 text: &str,
3220 autoindent_mode: Option<AutoindentMode>,
3221 cx: &mut ViewContext<Self>,
3222 ) {
3223 if self.read_only(cx) {
3224 return;
3225 }
3226
3227 let text: Arc<str> = text.into();
3228 self.transact(cx, |this, cx| {
3229 let old_selections = this.selections.all_adjusted(cx);
3230 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3231 let anchors = {
3232 let snapshot = buffer.read(cx);
3233 old_selections
3234 .iter()
3235 .map(|s| {
3236 let anchor = snapshot.anchor_after(s.head());
3237 s.map(|_| anchor)
3238 })
3239 .collect::<Vec<_>>()
3240 };
3241 buffer.edit(
3242 old_selections
3243 .iter()
3244 .map(|s| (s.start..s.end, text.clone())),
3245 autoindent_mode,
3246 cx,
3247 );
3248 anchors
3249 });
3250
3251 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3252 s.select_anchors(selection_anchors);
3253 })
3254 });
3255 }
3256
3257 fn trigger_completion_on_input(
3258 &mut self,
3259 text: &str,
3260 trigger_in_words: bool,
3261 cx: &mut ViewContext<Self>,
3262 ) {
3263 if self.is_completion_trigger(text, trigger_in_words, cx) {
3264 self.show_completions(
3265 &ShowCompletions {
3266 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3267 },
3268 cx,
3269 );
3270 } else {
3271 self.hide_context_menu(cx);
3272 }
3273 }
3274
3275 fn is_completion_trigger(
3276 &self,
3277 text: &str,
3278 trigger_in_words: bool,
3279 cx: &mut ViewContext<Self>,
3280 ) -> bool {
3281 let position = self.selections.newest_anchor().head();
3282 let multibuffer = self.buffer.read(cx);
3283 let Some(buffer) = position
3284 .buffer_id
3285 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3286 else {
3287 return false;
3288 };
3289
3290 if let Some(completion_provider) = &self.completion_provider {
3291 completion_provider.is_completion_trigger(
3292 &buffer,
3293 position.text_anchor,
3294 text,
3295 trigger_in_words,
3296 cx,
3297 )
3298 } else {
3299 false
3300 }
3301 }
3302
3303 /// If any empty selections is touching the start of its innermost containing autoclose
3304 /// region, expand it to select the brackets.
3305 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3306 let selections = self.selections.all::<usize>(cx);
3307 let buffer = self.buffer.read(cx).read(cx);
3308 let new_selections = self
3309 .selections_with_autoclose_regions(selections, &buffer)
3310 .map(|(mut selection, region)| {
3311 if !selection.is_empty() {
3312 return selection;
3313 }
3314
3315 if let Some(region) = region {
3316 let mut range = region.range.to_offset(&buffer);
3317 if selection.start == range.start && range.start >= region.pair.start.len() {
3318 range.start -= region.pair.start.len();
3319 if buffer.contains_str_at(range.start, ®ion.pair.start)
3320 && buffer.contains_str_at(range.end, ®ion.pair.end)
3321 {
3322 range.end += region.pair.end.len();
3323 selection.start = range.start;
3324 selection.end = range.end;
3325
3326 return selection;
3327 }
3328 }
3329 }
3330
3331 let always_treat_brackets_as_autoclosed = buffer
3332 .settings_at(selection.start, cx)
3333 .always_treat_brackets_as_autoclosed;
3334
3335 if !always_treat_brackets_as_autoclosed {
3336 return selection;
3337 }
3338
3339 if let Some(scope) = buffer.language_scope_at(selection.start) {
3340 for (pair, enabled) in scope.brackets() {
3341 if !enabled || !pair.close {
3342 continue;
3343 }
3344
3345 if buffer.contains_str_at(selection.start, &pair.end) {
3346 let pair_start_len = pair.start.len();
3347 if buffer.contains_str_at(
3348 selection.start.saturating_sub(pair_start_len),
3349 &pair.start,
3350 ) {
3351 selection.start -= pair_start_len;
3352 selection.end += pair.end.len();
3353
3354 return selection;
3355 }
3356 }
3357 }
3358 }
3359
3360 selection
3361 })
3362 .collect();
3363
3364 drop(buffer);
3365 self.change_selections(None, cx, |selections| selections.select(new_selections));
3366 }
3367
3368 /// Iterate the given selections, and for each one, find the smallest surrounding
3369 /// autoclose region. This uses the ordering of the selections and the autoclose
3370 /// regions to avoid repeated comparisons.
3371 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3372 &'a self,
3373 selections: impl IntoIterator<Item = Selection<D>>,
3374 buffer: &'a MultiBufferSnapshot,
3375 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3376 let mut i = 0;
3377 let mut regions = self.autoclose_regions.as_slice();
3378 selections.into_iter().map(move |selection| {
3379 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3380
3381 let mut enclosing = None;
3382 while let Some(pair_state) = regions.get(i) {
3383 if pair_state.range.end.to_offset(buffer) < range.start {
3384 regions = ®ions[i + 1..];
3385 i = 0;
3386 } else if pair_state.range.start.to_offset(buffer) > range.end {
3387 break;
3388 } else {
3389 if pair_state.selection_id == selection.id {
3390 enclosing = Some(pair_state);
3391 }
3392 i += 1;
3393 }
3394 }
3395
3396 (selection, enclosing)
3397 })
3398 }
3399
3400 /// Remove any autoclose regions that no longer contain their selection.
3401 fn invalidate_autoclose_regions(
3402 &mut self,
3403 mut selections: &[Selection<Anchor>],
3404 buffer: &MultiBufferSnapshot,
3405 ) {
3406 self.autoclose_regions.retain(|state| {
3407 let mut i = 0;
3408 while let Some(selection) = selections.get(i) {
3409 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3410 selections = &selections[1..];
3411 continue;
3412 }
3413 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3414 break;
3415 }
3416 if selection.id == state.selection_id {
3417 return true;
3418 } else {
3419 i += 1;
3420 }
3421 }
3422 false
3423 });
3424 }
3425
3426 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3427 let offset = position.to_offset(buffer);
3428 let (word_range, kind) = buffer.surrounding_word(offset, true);
3429 if offset > word_range.start && kind == Some(CharKind::Word) {
3430 Some(
3431 buffer
3432 .text_for_range(word_range.start..offset)
3433 .collect::<String>(),
3434 )
3435 } else {
3436 None
3437 }
3438 }
3439
3440 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3441 self.refresh_inlay_hints(
3442 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3443 cx,
3444 );
3445 }
3446
3447 pub fn inlay_hints_enabled(&self) -> bool {
3448 self.inlay_hint_cache.enabled
3449 }
3450
3451 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3452 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3453 return;
3454 }
3455
3456 let reason_description = reason.description();
3457 let ignore_debounce = matches!(
3458 reason,
3459 InlayHintRefreshReason::SettingsChange(_)
3460 | InlayHintRefreshReason::Toggle(_)
3461 | InlayHintRefreshReason::ExcerptsRemoved(_)
3462 );
3463 let (invalidate_cache, required_languages) = match reason {
3464 InlayHintRefreshReason::Toggle(enabled) => {
3465 self.inlay_hint_cache.enabled = enabled;
3466 if enabled {
3467 (InvalidationStrategy::RefreshRequested, None)
3468 } else {
3469 self.inlay_hint_cache.clear();
3470 self.splice_inlays(
3471 self.visible_inlay_hints(cx)
3472 .iter()
3473 .map(|inlay| inlay.id)
3474 .collect(),
3475 Vec::new(),
3476 cx,
3477 );
3478 return;
3479 }
3480 }
3481 InlayHintRefreshReason::SettingsChange(new_settings) => {
3482 match self.inlay_hint_cache.update_settings(
3483 &self.buffer,
3484 new_settings,
3485 self.visible_inlay_hints(cx),
3486 cx,
3487 ) {
3488 ControlFlow::Break(Some(InlaySplice {
3489 to_remove,
3490 to_insert,
3491 })) => {
3492 self.splice_inlays(to_remove, to_insert, cx);
3493 return;
3494 }
3495 ControlFlow::Break(None) => return,
3496 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3497 }
3498 }
3499 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3500 if let Some(InlaySplice {
3501 to_remove,
3502 to_insert,
3503 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3504 {
3505 self.splice_inlays(to_remove, to_insert, cx);
3506 }
3507 return;
3508 }
3509 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3510 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3511 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3512 }
3513 InlayHintRefreshReason::RefreshRequested => {
3514 (InvalidationStrategy::RefreshRequested, None)
3515 }
3516 };
3517
3518 if let Some(InlaySplice {
3519 to_remove,
3520 to_insert,
3521 }) = self.inlay_hint_cache.spawn_hint_refresh(
3522 reason_description,
3523 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3524 invalidate_cache,
3525 ignore_debounce,
3526 cx,
3527 ) {
3528 self.splice_inlays(to_remove, to_insert, cx);
3529 }
3530 }
3531
3532 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3533 self.display_map
3534 .read(cx)
3535 .current_inlays()
3536 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3537 .cloned()
3538 .collect()
3539 }
3540
3541 pub fn excerpts_for_inlay_hints_query(
3542 &self,
3543 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3544 cx: &mut ViewContext<Editor>,
3545 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3546 let Some(project) = self.project.as_ref() else {
3547 return HashMap::default();
3548 };
3549 let project = project.read(cx);
3550 let multi_buffer = self.buffer().read(cx);
3551 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3552 let multi_buffer_visible_start = self
3553 .scroll_manager
3554 .anchor()
3555 .anchor
3556 .to_point(&multi_buffer_snapshot);
3557 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3558 multi_buffer_visible_start
3559 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3560 Bias::Left,
3561 );
3562 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3563 multi_buffer_snapshot
3564 .range_to_buffer_ranges(multi_buffer_visible_range)
3565 .into_iter()
3566 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3567 .filter_map(|(excerpt, excerpt_visible_range)| {
3568 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3569 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3570 let worktree_entry = buffer_worktree
3571 .read(cx)
3572 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3573 if worktree_entry.is_ignored {
3574 return None;
3575 }
3576
3577 let language = excerpt.buffer().language()?;
3578 if let Some(restrict_to_languages) = restrict_to_languages {
3579 if !restrict_to_languages.contains(language) {
3580 return None;
3581 }
3582 }
3583 Some((
3584 excerpt.id(),
3585 (
3586 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3587 excerpt.buffer().version().clone(),
3588 excerpt_visible_range,
3589 ),
3590 ))
3591 })
3592 .collect()
3593 }
3594
3595 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3596 TextLayoutDetails {
3597 text_system: cx.text_system().clone(),
3598 editor_style: self.style.clone().unwrap(),
3599 rem_size: cx.rem_size(),
3600 scroll_anchor: self.scroll_manager.anchor(),
3601 visible_rows: self.visible_line_count(),
3602 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3603 }
3604 }
3605
3606 pub fn splice_inlays(
3607 &self,
3608 to_remove: Vec<InlayId>,
3609 to_insert: Vec<Inlay>,
3610 cx: &mut ViewContext<Self>,
3611 ) {
3612 self.display_map.update(cx, |display_map, cx| {
3613 display_map.splice_inlays(to_remove, to_insert, cx)
3614 });
3615 cx.notify();
3616 }
3617
3618 fn trigger_on_type_formatting(
3619 &self,
3620 input: String,
3621 cx: &mut ViewContext<Self>,
3622 ) -> Option<Task<Result<()>>> {
3623 if input.len() != 1 {
3624 return None;
3625 }
3626
3627 let project = self.project.as_ref()?;
3628 let position = self.selections.newest_anchor().head();
3629 let (buffer, buffer_position) = self
3630 .buffer
3631 .read(cx)
3632 .text_anchor_for_position(position, cx)?;
3633
3634 let settings = language_settings::language_settings(
3635 buffer
3636 .read(cx)
3637 .language_at(buffer_position)
3638 .map(|l| l.name()),
3639 buffer.read(cx).file(),
3640 cx,
3641 );
3642 if !settings.use_on_type_format {
3643 return None;
3644 }
3645
3646 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3647 // hence we do LSP request & edit on host side only — add formats to host's history.
3648 let push_to_lsp_host_history = true;
3649 // If this is not the host, append its history with new edits.
3650 let push_to_client_history = project.read(cx).is_via_collab();
3651
3652 let on_type_formatting = project.update(cx, |project, cx| {
3653 project.on_type_format(
3654 buffer.clone(),
3655 buffer_position,
3656 input,
3657 push_to_lsp_host_history,
3658 cx,
3659 )
3660 });
3661 Some(cx.spawn(|editor, mut cx| async move {
3662 if let Some(transaction) = on_type_formatting.await? {
3663 if push_to_client_history {
3664 buffer
3665 .update(&mut cx, |buffer, _| {
3666 buffer.push_transaction(transaction, Instant::now());
3667 })
3668 .ok();
3669 }
3670 editor.update(&mut cx, |editor, cx| {
3671 editor.refresh_document_highlights(cx);
3672 })?;
3673 }
3674 Ok(())
3675 }))
3676 }
3677
3678 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3679 if self.pending_rename.is_some() {
3680 return;
3681 }
3682
3683 let Some(provider) = self.completion_provider.as_ref() else {
3684 return;
3685 };
3686
3687 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3688 return;
3689 }
3690
3691 let position = self.selections.newest_anchor().head();
3692 let (buffer, buffer_position) =
3693 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3694 output
3695 } else {
3696 return;
3697 };
3698 let show_completion_documentation = buffer
3699 .read(cx)
3700 .snapshot()
3701 .settings_at(buffer_position, cx)
3702 .show_completion_documentation;
3703
3704 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3705
3706 let trigger_kind = match &options.trigger {
3707 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3708 CompletionTriggerKind::TRIGGER_CHARACTER
3709 }
3710 _ => CompletionTriggerKind::INVOKED,
3711 };
3712 let completion_context = CompletionContext {
3713 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3714 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3715 Some(String::from(trigger))
3716 } else {
3717 None
3718 }
3719 }),
3720 trigger_kind,
3721 };
3722 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3723 let sort_completions = provider.sort_completions();
3724
3725 let id = post_inc(&mut self.next_completion_id);
3726 let task = cx.spawn(|editor, mut cx| {
3727 async move {
3728 editor.update(&mut cx, |this, _| {
3729 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3730 })?;
3731 let completions = completions.await.log_err();
3732 let menu = if let Some(completions) = completions {
3733 let mut menu = CompletionsMenu::new(
3734 id,
3735 sort_completions,
3736 show_completion_documentation,
3737 position,
3738 buffer.clone(),
3739 completions.into(),
3740 );
3741
3742 menu.filter(query.as_deref(), cx.background_executor().clone())
3743 .await;
3744
3745 menu.visible().then_some(menu)
3746 } else {
3747 None
3748 };
3749
3750 editor.update(&mut cx, |editor, cx| {
3751 match editor.context_menu.borrow().as_ref() {
3752 None => {}
3753 Some(CodeContextMenu::Completions(prev_menu)) => {
3754 if prev_menu.id > id {
3755 return;
3756 }
3757 }
3758 _ => return,
3759 }
3760
3761 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3762 let mut menu = menu.unwrap();
3763 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3764
3765 if editor.show_inline_completions_in_menu(cx) {
3766 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3767 menu.show_inline_completion_hint(hint);
3768 }
3769 } else {
3770 editor.discard_inline_completion(false, cx);
3771 }
3772
3773 *editor.context_menu.borrow_mut() =
3774 Some(CodeContextMenu::Completions(menu));
3775
3776 cx.notify();
3777 } else if editor.completion_tasks.len() <= 1 {
3778 // If there are no more completion tasks and the last menu was
3779 // empty, we should hide it.
3780 let was_hidden = editor.hide_context_menu(cx).is_none();
3781 // If it was already hidden and we don't show inline
3782 // completions in the menu, we should also show the
3783 // inline-completion when available.
3784 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3785 editor.update_visible_inline_completion(cx);
3786 }
3787 }
3788 })?;
3789
3790 Ok::<_, anyhow::Error>(())
3791 }
3792 .log_err()
3793 });
3794
3795 self.completion_tasks.push((id, task));
3796 }
3797
3798 pub fn confirm_completion(
3799 &mut self,
3800 action: &ConfirmCompletion,
3801 cx: &mut ViewContext<Self>,
3802 ) -> Option<Task<Result<()>>> {
3803 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3804 }
3805
3806 pub fn compose_completion(
3807 &mut self,
3808 action: &ComposeCompletion,
3809 cx: &mut ViewContext<Self>,
3810 ) -> Option<Task<Result<()>>> {
3811 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3812 }
3813
3814 fn do_completion(
3815 &mut self,
3816 item_ix: Option<usize>,
3817 intent: CompletionIntent,
3818 cx: &mut ViewContext<Editor>,
3819 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3820 use language::ToOffset as _;
3821
3822 let completions_menu =
3823 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3824 menu
3825 } else {
3826 return None;
3827 };
3828
3829 let mat = completions_menu
3830 .entries
3831 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3832
3833 let mat = match mat {
3834 CompletionEntry::InlineCompletionHint { .. } => {
3835 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3836 cx.stop_propagation();
3837 return Some(Task::ready(Ok(())));
3838 }
3839 CompletionEntry::Match(mat) => {
3840 if self.show_inline_completions_in_menu(cx) {
3841 self.discard_inline_completion(true, cx);
3842 }
3843 mat
3844 }
3845 };
3846
3847 let buffer_handle = completions_menu.buffer;
3848 let completion = completions_menu
3849 .completions
3850 .borrow()
3851 .get(mat.candidate_id)?
3852 .clone();
3853 cx.stop_propagation();
3854
3855 let snippet;
3856 let text;
3857
3858 if completion.is_snippet() {
3859 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3860 text = snippet.as_ref().unwrap().text.clone();
3861 } else {
3862 snippet = None;
3863 text = completion.new_text.clone();
3864 };
3865 let selections = self.selections.all::<usize>(cx);
3866 let buffer = buffer_handle.read(cx);
3867 let old_range = completion.old_range.to_offset(buffer);
3868 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3869
3870 let newest_selection = self.selections.newest_anchor();
3871 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3872 return None;
3873 }
3874
3875 let lookbehind = newest_selection
3876 .start
3877 .text_anchor
3878 .to_offset(buffer)
3879 .saturating_sub(old_range.start);
3880 let lookahead = old_range
3881 .end
3882 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3883 let mut common_prefix_len = old_text
3884 .bytes()
3885 .zip(text.bytes())
3886 .take_while(|(a, b)| a == b)
3887 .count();
3888
3889 let snapshot = self.buffer.read(cx).snapshot(cx);
3890 let mut range_to_replace: Option<Range<isize>> = None;
3891 let mut ranges = Vec::new();
3892 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3893 for selection in &selections {
3894 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3895 let start = selection.start.saturating_sub(lookbehind);
3896 let end = selection.end + lookahead;
3897 if selection.id == newest_selection.id {
3898 range_to_replace = Some(
3899 ((start + common_prefix_len) as isize - selection.start as isize)
3900 ..(end as isize - selection.start as isize),
3901 );
3902 }
3903 ranges.push(start + common_prefix_len..end);
3904 } else {
3905 common_prefix_len = 0;
3906 ranges.clear();
3907 ranges.extend(selections.iter().map(|s| {
3908 if s.id == newest_selection.id {
3909 range_to_replace = Some(
3910 old_range.start.to_offset_utf16(&snapshot).0 as isize
3911 - selection.start as isize
3912 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3913 - selection.start as isize,
3914 );
3915 old_range.clone()
3916 } else {
3917 s.start..s.end
3918 }
3919 }));
3920 break;
3921 }
3922 if !self.linked_edit_ranges.is_empty() {
3923 let start_anchor = snapshot.anchor_before(selection.head());
3924 let end_anchor = snapshot.anchor_after(selection.tail());
3925 if let Some(ranges) = self
3926 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3927 {
3928 for (buffer, edits) in ranges {
3929 linked_edits.entry(buffer.clone()).or_default().extend(
3930 edits
3931 .into_iter()
3932 .map(|range| (range, text[common_prefix_len..].to_owned())),
3933 );
3934 }
3935 }
3936 }
3937 }
3938 let text = &text[common_prefix_len..];
3939
3940 cx.emit(EditorEvent::InputHandled {
3941 utf16_range_to_replace: range_to_replace,
3942 text: text.into(),
3943 });
3944
3945 self.transact(cx, |this, cx| {
3946 if let Some(mut snippet) = snippet {
3947 snippet.text = text.to_string();
3948 for tabstop in snippet
3949 .tabstops
3950 .iter_mut()
3951 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3952 {
3953 tabstop.start -= common_prefix_len as isize;
3954 tabstop.end -= common_prefix_len as isize;
3955 }
3956
3957 this.insert_snippet(&ranges, snippet, cx).log_err();
3958 } else {
3959 this.buffer.update(cx, |buffer, cx| {
3960 buffer.edit(
3961 ranges.iter().map(|range| (range.clone(), text)),
3962 this.autoindent_mode.clone(),
3963 cx,
3964 );
3965 });
3966 }
3967 for (buffer, edits) in linked_edits {
3968 buffer.update(cx, |buffer, cx| {
3969 let snapshot = buffer.snapshot();
3970 let edits = edits
3971 .into_iter()
3972 .map(|(range, text)| {
3973 use text::ToPoint as TP;
3974 let end_point = TP::to_point(&range.end, &snapshot);
3975 let start_point = TP::to_point(&range.start, &snapshot);
3976 (start_point..end_point, text)
3977 })
3978 .sorted_by_key(|(range, _)| range.start)
3979 .collect::<Vec<_>>();
3980 buffer.edit(edits, None, cx);
3981 })
3982 }
3983
3984 this.refresh_inline_completion(true, false, cx);
3985 });
3986
3987 let show_new_completions_on_confirm = completion
3988 .confirm
3989 .as_ref()
3990 .map_or(false, |confirm| confirm(intent, cx));
3991 if show_new_completions_on_confirm {
3992 self.show_completions(&ShowCompletions { trigger: None }, cx);
3993 }
3994
3995 let provider = self.completion_provider.as_ref()?;
3996 drop(completion);
3997 let apply_edits = provider.apply_additional_edits_for_completion(
3998 buffer_handle,
3999 completions_menu.completions.clone(),
4000 mat.candidate_id,
4001 true,
4002 cx,
4003 );
4004
4005 let editor_settings = EditorSettings::get_global(cx);
4006 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4007 // After the code completion is finished, users often want to know what signatures are needed.
4008 // so we should automatically call signature_help
4009 self.show_signature_help(&ShowSignatureHelp, cx);
4010 }
4011
4012 Some(cx.foreground_executor().spawn(async move {
4013 apply_edits.await?;
4014 Ok(())
4015 }))
4016 }
4017
4018 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4019 let mut context_menu = self.context_menu.borrow_mut();
4020 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4021 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4022 // Toggle if we're selecting the same one
4023 *context_menu = None;
4024 cx.notify();
4025 return;
4026 } else {
4027 // Otherwise, clear it and start a new one
4028 *context_menu = None;
4029 cx.notify();
4030 }
4031 }
4032 drop(context_menu);
4033 let snapshot = self.snapshot(cx);
4034 let deployed_from_indicator = action.deployed_from_indicator;
4035 let mut task = self.code_actions_task.take();
4036 let action = action.clone();
4037 cx.spawn(|editor, mut cx| async move {
4038 while let Some(prev_task) = task {
4039 prev_task.await.log_err();
4040 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4041 }
4042
4043 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4044 if editor.focus_handle.is_focused(cx) {
4045 let multibuffer_point = action
4046 .deployed_from_indicator
4047 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4048 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4049 let (buffer, buffer_row) = snapshot
4050 .buffer_snapshot
4051 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4052 .and_then(|(buffer_snapshot, range)| {
4053 editor
4054 .buffer
4055 .read(cx)
4056 .buffer(buffer_snapshot.remote_id())
4057 .map(|buffer| (buffer, range.start.row))
4058 })?;
4059 let (_, code_actions) = editor
4060 .available_code_actions
4061 .clone()
4062 .and_then(|(location, code_actions)| {
4063 let snapshot = location.buffer.read(cx).snapshot();
4064 let point_range = location.range.to_point(&snapshot);
4065 let point_range = point_range.start.row..=point_range.end.row;
4066 if point_range.contains(&buffer_row) {
4067 Some((location, code_actions))
4068 } else {
4069 None
4070 }
4071 })
4072 .unzip();
4073 let buffer_id = buffer.read(cx).remote_id();
4074 let tasks = editor
4075 .tasks
4076 .get(&(buffer_id, buffer_row))
4077 .map(|t| Arc::new(t.to_owned()));
4078 if tasks.is_none() && code_actions.is_none() {
4079 return None;
4080 }
4081
4082 editor.completion_tasks.clear();
4083 editor.discard_inline_completion(false, cx);
4084 let task_context =
4085 tasks
4086 .as_ref()
4087 .zip(editor.project.clone())
4088 .map(|(tasks, project)| {
4089 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4090 });
4091
4092 Some(cx.spawn(|editor, mut cx| async move {
4093 let task_context = match task_context {
4094 Some(task_context) => task_context.await,
4095 None => None,
4096 };
4097 let resolved_tasks =
4098 tasks.zip(task_context).map(|(tasks, task_context)| {
4099 Rc::new(ResolvedTasks {
4100 templates: tasks.resolve(&task_context).collect(),
4101 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4102 multibuffer_point.row,
4103 tasks.column,
4104 )),
4105 })
4106 });
4107 let spawn_straight_away = resolved_tasks
4108 .as_ref()
4109 .map_or(false, |tasks| tasks.templates.len() == 1)
4110 && code_actions
4111 .as_ref()
4112 .map_or(true, |actions| actions.is_empty());
4113 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4114 *editor.context_menu.borrow_mut() =
4115 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4116 buffer,
4117 actions: CodeActionContents {
4118 tasks: resolved_tasks,
4119 actions: code_actions,
4120 },
4121 selected_item: Default::default(),
4122 scroll_handle: UniformListScrollHandle::default(),
4123 deployed_from_indicator,
4124 }));
4125 if spawn_straight_away {
4126 if let Some(task) = editor.confirm_code_action(
4127 &ConfirmCodeAction { item_ix: Some(0) },
4128 cx,
4129 ) {
4130 cx.notify();
4131 return task;
4132 }
4133 }
4134 cx.notify();
4135 Task::ready(Ok(()))
4136 }) {
4137 task.await
4138 } else {
4139 Ok(())
4140 }
4141 }))
4142 } else {
4143 Some(Task::ready(Ok(())))
4144 }
4145 })?;
4146 if let Some(task) = spawned_test_task {
4147 task.await?;
4148 }
4149
4150 Ok::<_, anyhow::Error>(())
4151 })
4152 .detach_and_log_err(cx);
4153 }
4154
4155 pub fn confirm_code_action(
4156 &mut self,
4157 action: &ConfirmCodeAction,
4158 cx: &mut ViewContext<Self>,
4159 ) -> Option<Task<Result<()>>> {
4160 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4161 menu
4162 } else {
4163 return None;
4164 };
4165 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4166 let action = actions_menu.actions.get(action_ix)?;
4167 let title = action.label();
4168 let buffer = actions_menu.buffer;
4169 let workspace = self.workspace()?;
4170
4171 match action {
4172 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4173 workspace.update(cx, |workspace, cx| {
4174 workspace::tasks::schedule_resolved_task(
4175 workspace,
4176 task_source_kind,
4177 resolved_task,
4178 false,
4179 cx,
4180 );
4181
4182 Some(Task::ready(Ok(())))
4183 })
4184 }
4185 CodeActionsItem::CodeAction {
4186 excerpt_id,
4187 action,
4188 provider,
4189 } => {
4190 let apply_code_action =
4191 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4192 let workspace = workspace.downgrade();
4193 Some(cx.spawn(|editor, cx| async move {
4194 let project_transaction = apply_code_action.await?;
4195 Self::open_project_transaction(
4196 &editor,
4197 workspace,
4198 project_transaction,
4199 title,
4200 cx,
4201 )
4202 .await
4203 }))
4204 }
4205 }
4206 }
4207
4208 pub async fn open_project_transaction(
4209 this: &WeakView<Editor>,
4210 workspace: WeakView<Workspace>,
4211 transaction: ProjectTransaction,
4212 title: String,
4213 mut cx: AsyncWindowContext,
4214 ) -> Result<()> {
4215 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4216 cx.update(|cx| {
4217 entries.sort_unstable_by_key(|(buffer, _)| {
4218 buffer.read(cx).file().map(|f| f.path().clone())
4219 });
4220 })?;
4221
4222 // If the project transaction's edits are all contained within this editor, then
4223 // avoid opening a new editor to display them.
4224
4225 if let Some((buffer, transaction)) = entries.first() {
4226 if entries.len() == 1 {
4227 let excerpt = this.update(&mut cx, |editor, cx| {
4228 editor
4229 .buffer()
4230 .read(cx)
4231 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4232 })?;
4233 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4234 if excerpted_buffer == *buffer {
4235 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4236 let excerpt_range = excerpt_range.to_offset(buffer);
4237 buffer
4238 .edited_ranges_for_transaction::<usize>(transaction)
4239 .all(|range| {
4240 excerpt_range.start <= range.start
4241 && excerpt_range.end >= range.end
4242 })
4243 })?;
4244
4245 if all_edits_within_excerpt {
4246 return Ok(());
4247 }
4248 }
4249 }
4250 }
4251 } else {
4252 return Ok(());
4253 }
4254
4255 let mut ranges_to_highlight = Vec::new();
4256 let excerpt_buffer = cx.new_model(|cx| {
4257 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4258 for (buffer_handle, transaction) in &entries {
4259 let buffer = buffer_handle.read(cx);
4260 ranges_to_highlight.extend(
4261 multibuffer.push_excerpts_with_context_lines(
4262 buffer_handle.clone(),
4263 buffer
4264 .edited_ranges_for_transaction::<usize>(transaction)
4265 .collect(),
4266 DEFAULT_MULTIBUFFER_CONTEXT,
4267 cx,
4268 ),
4269 );
4270 }
4271 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4272 multibuffer
4273 })?;
4274
4275 workspace.update(&mut cx, |workspace, cx| {
4276 let project = workspace.project().clone();
4277 let editor =
4278 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4279 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4280 editor.update(cx, |editor, cx| {
4281 editor.highlight_background::<Self>(
4282 &ranges_to_highlight,
4283 |theme| theme.editor_highlighted_line_background,
4284 cx,
4285 );
4286 });
4287 })?;
4288
4289 Ok(())
4290 }
4291
4292 pub fn clear_code_action_providers(&mut self) {
4293 self.code_action_providers.clear();
4294 self.available_code_actions.take();
4295 }
4296
4297 pub fn add_code_action_provider(
4298 &mut self,
4299 provider: Rc<dyn CodeActionProvider>,
4300 cx: &mut ViewContext<Self>,
4301 ) {
4302 if self
4303 .code_action_providers
4304 .iter()
4305 .any(|existing_provider| existing_provider.id() == provider.id())
4306 {
4307 return;
4308 }
4309
4310 self.code_action_providers.push(provider);
4311 self.refresh_code_actions(cx);
4312 }
4313
4314 pub fn remove_code_action_provider(&mut self, id: Arc<str>, cx: &mut ViewContext<Self>) {
4315 self.code_action_providers
4316 .retain(|provider| provider.id() != id);
4317 self.refresh_code_actions(cx);
4318 }
4319
4320 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4321 let buffer = self.buffer.read(cx);
4322 let newest_selection = self.selections.newest_anchor().clone();
4323 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4324 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4325 if start_buffer != end_buffer {
4326 return None;
4327 }
4328
4329 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4330 cx.background_executor()
4331 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4332 .await;
4333
4334 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4335 let providers = this.code_action_providers.clone();
4336 let tasks = this
4337 .code_action_providers
4338 .iter()
4339 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4340 .collect::<Vec<_>>();
4341 (providers, tasks)
4342 })?;
4343
4344 let mut actions = Vec::new();
4345 for (provider, provider_actions) in
4346 providers.into_iter().zip(future::join_all(tasks).await)
4347 {
4348 if let Some(provider_actions) = provider_actions.log_err() {
4349 actions.extend(provider_actions.into_iter().map(|action| {
4350 AvailableCodeAction {
4351 excerpt_id: newest_selection.start.excerpt_id,
4352 action,
4353 provider: provider.clone(),
4354 }
4355 }));
4356 }
4357 }
4358
4359 this.update(&mut cx, |this, cx| {
4360 this.available_code_actions = if actions.is_empty() {
4361 None
4362 } else {
4363 Some((
4364 Location {
4365 buffer: start_buffer,
4366 range: start..end,
4367 },
4368 actions.into(),
4369 ))
4370 };
4371 cx.notify();
4372 })
4373 }));
4374 None
4375 }
4376
4377 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4378 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4379 self.show_git_blame_inline = false;
4380
4381 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4382 cx.background_executor().timer(delay).await;
4383
4384 this.update(&mut cx, |this, cx| {
4385 this.show_git_blame_inline = true;
4386 cx.notify();
4387 })
4388 .log_err();
4389 }));
4390 }
4391 }
4392
4393 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4394 if self.pending_rename.is_some() {
4395 return None;
4396 }
4397
4398 let provider = self.semantics_provider.clone()?;
4399 let buffer = self.buffer.read(cx);
4400 let newest_selection = self.selections.newest_anchor().clone();
4401 let cursor_position = newest_selection.head();
4402 let (cursor_buffer, cursor_buffer_position) =
4403 buffer.text_anchor_for_position(cursor_position, cx)?;
4404 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4405 if cursor_buffer != tail_buffer {
4406 return None;
4407 }
4408 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4409 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4410 cx.background_executor()
4411 .timer(Duration::from_millis(debounce))
4412 .await;
4413
4414 let highlights = if let Some(highlights) = cx
4415 .update(|cx| {
4416 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4417 })
4418 .ok()
4419 .flatten()
4420 {
4421 highlights.await.log_err()
4422 } else {
4423 None
4424 };
4425
4426 if let Some(highlights) = highlights {
4427 this.update(&mut cx, |this, cx| {
4428 if this.pending_rename.is_some() {
4429 return;
4430 }
4431
4432 let buffer_id = cursor_position.buffer_id;
4433 let buffer = this.buffer.read(cx);
4434 if !buffer
4435 .text_anchor_for_position(cursor_position, cx)
4436 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4437 {
4438 return;
4439 }
4440
4441 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4442 let mut write_ranges = Vec::new();
4443 let mut read_ranges = Vec::new();
4444 for highlight in highlights {
4445 for (excerpt_id, excerpt_range) in
4446 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4447 {
4448 let start = highlight
4449 .range
4450 .start
4451 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4452 let end = highlight
4453 .range
4454 .end
4455 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4456 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4457 continue;
4458 }
4459
4460 let range = Anchor {
4461 buffer_id,
4462 excerpt_id,
4463 text_anchor: start,
4464 }..Anchor {
4465 buffer_id,
4466 excerpt_id,
4467 text_anchor: end,
4468 };
4469 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4470 write_ranges.push(range);
4471 } else {
4472 read_ranges.push(range);
4473 }
4474 }
4475 }
4476
4477 this.highlight_background::<DocumentHighlightRead>(
4478 &read_ranges,
4479 |theme| theme.editor_document_highlight_read_background,
4480 cx,
4481 );
4482 this.highlight_background::<DocumentHighlightWrite>(
4483 &write_ranges,
4484 |theme| theme.editor_document_highlight_write_background,
4485 cx,
4486 );
4487 cx.notify();
4488 })
4489 .log_err();
4490 }
4491 }));
4492 None
4493 }
4494
4495 pub fn refresh_inline_completion(
4496 &mut self,
4497 debounce: bool,
4498 user_requested: bool,
4499 cx: &mut ViewContext<Self>,
4500 ) -> Option<()> {
4501 let provider = self.inline_completion_provider()?;
4502 let cursor = self.selections.newest_anchor().head();
4503 let (buffer, cursor_buffer_position) =
4504 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4505
4506 if !user_requested
4507 && (!self.enable_inline_completions
4508 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4509 || !self.is_focused(cx)
4510 || buffer.read(cx).is_empty())
4511 {
4512 self.discard_inline_completion(false, cx);
4513 return None;
4514 }
4515
4516 self.update_visible_inline_completion(cx);
4517 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4518 Some(())
4519 }
4520
4521 fn cycle_inline_completion(
4522 &mut self,
4523 direction: Direction,
4524 cx: &mut ViewContext<Self>,
4525 ) -> Option<()> {
4526 let provider = self.inline_completion_provider()?;
4527 let cursor = self.selections.newest_anchor().head();
4528 let (buffer, cursor_buffer_position) =
4529 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4530 if !self.enable_inline_completions
4531 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4532 {
4533 return None;
4534 }
4535
4536 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4537 self.update_visible_inline_completion(cx);
4538
4539 Some(())
4540 }
4541
4542 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4543 if !self.has_active_inline_completion() {
4544 self.refresh_inline_completion(false, true, cx);
4545 return;
4546 }
4547
4548 self.update_visible_inline_completion(cx);
4549 }
4550
4551 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4552 self.show_cursor_names(cx);
4553 }
4554
4555 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4556 self.show_cursor_names = true;
4557 cx.notify();
4558 cx.spawn(|this, mut cx| async move {
4559 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4560 this.update(&mut cx, |this, cx| {
4561 this.show_cursor_names = false;
4562 cx.notify()
4563 })
4564 .ok()
4565 })
4566 .detach();
4567 }
4568
4569 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4570 if self.has_active_inline_completion() {
4571 self.cycle_inline_completion(Direction::Next, cx);
4572 } else {
4573 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4574 if is_copilot_disabled {
4575 cx.propagate();
4576 }
4577 }
4578 }
4579
4580 pub fn previous_inline_completion(
4581 &mut self,
4582 _: &PreviousInlineCompletion,
4583 cx: &mut ViewContext<Self>,
4584 ) {
4585 if self.has_active_inline_completion() {
4586 self.cycle_inline_completion(Direction::Prev, cx);
4587 } else {
4588 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4589 if is_copilot_disabled {
4590 cx.propagate();
4591 }
4592 }
4593 }
4594
4595 pub fn accept_inline_completion(
4596 &mut self,
4597 _: &AcceptInlineCompletion,
4598 cx: &mut ViewContext<Self>,
4599 ) {
4600 let buffer = self.buffer.read(cx);
4601 let snapshot = buffer.snapshot(cx);
4602 let selection = self.selections.newest_adjusted(cx);
4603 let cursor = selection.head();
4604 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4605 let suggested_indents = snapshot.suggested_indents([cursor.row], cx);
4606 if let Some(suggested_indent) = suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4607 {
4608 if cursor.column < suggested_indent.len
4609 && cursor.column <= current_indent.len
4610 && current_indent.len <= suggested_indent.len
4611 {
4612 self.tab(&Default::default(), cx);
4613 return;
4614 }
4615 }
4616
4617 if self.show_inline_completions_in_menu(cx) {
4618 self.hide_context_menu(cx);
4619 }
4620
4621 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4622 return;
4623 };
4624
4625 self.report_inline_completion_event(true, cx);
4626
4627 match &active_inline_completion.completion {
4628 InlineCompletion::Move(position) => {
4629 let position = *position;
4630 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4631 selections.select_anchor_ranges([position..position]);
4632 });
4633 }
4634 InlineCompletion::Edit(edits) => {
4635 if let Some(provider) = self.inline_completion_provider() {
4636 provider.accept(cx);
4637 }
4638
4639 let snapshot = self.buffer.read(cx).snapshot(cx);
4640 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4641
4642 self.buffer.update(cx, |buffer, cx| {
4643 buffer.edit(edits.iter().cloned(), None, cx)
4644 });
4645
4646 self.change_selections(None, cx, |s| {
4647 s.select_anchor_ranges([last_edit_end..last_edit_end])
4648 });
4649
4650 self.update_visible_inline_completion(cx);
4651 if self.active_inline_completion.is_none() {
4652 self.refresh_inline_completion(true, true, cx);
4653 }
4654
4655 cx.notify();
4656 }
4657 }
4658 }
4659
4660 pub fn accept_partial_inline_completion(
4661 &mut self,
4662 _: &AcceptPartialInlineCompletion,
4663 cx: &mut ViewContext<Self>,
4664 ) {
4665 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4666 return;
4667 };
4668 if self.selections.count() != 1 {
4669 return;
4670 }
4671
4672 self.report_inline_completion_event(true, cx);
4673
4674 match &active_inline_completion.completion {
4675 InlineCompletion::Move(position) => {
4676 let position = *position;
4677 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4678 selections.select_anchor_ranges([position..position]);
4679 });
4680 }
4681 InlineCompletion::Edit(edits) => {
4682 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4683 let text = edits[0].1.as_str();
4684 let mut partial_completion = text
4685 .chars()
4686 .by_ref()
4687 .take_while(|c| c.is_alphabetic())
4688 .collect::<String>();
4689 if partial_completion.is_empty() {
4690 partial_completion = text
4691 .chars()
4692 .by_ref()
4693 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4694 .collect::<String>();
4695 }
4696
4697 cx.emit(EditorEvent::InputHandled {
4698 utf16_range_to_replace: None,
4699 text: partial_completion.clone().into(),
4700 });
4701
4702 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4703
4704 self.refresh_inline_completion(true, true, cx);
4705 cx.notify();
4706 }
4707 }
4708 }
4709 }
4710
4711 fn discard_inline_completion(
4712 &mut self,
4713 should_report_inline_completion_event: bool,
4714 cx: &mut ViewContext<Self>,
4715 ) -> bool {
4716 if should_report_inline_completion_event {
4717 self.report_inline_completion_event(false, cx);
4718 }
4719
4720 if let Some(provider) = self.inline_completion_provider() {
4721 provider.discard(cx);
4722 }
4723
4724 self.take_active_inline_completion(cx).is_some()
4725 }
4726
4727 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4728 let Some(provider) = self.inline_completion_provider() else {
4729 return;
4730 };
4731 let Some(project) = self.project.as_ref() else {
4732 return;
4733 };
4734 let Some((_, buffer, _)) = self
4735 .buffer
4736 .read(cx)
4737 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4738 else {
4739 return;
4740 };
4741
4742 let project = project.read(cx);
4743 let extension = buffer
4744 .read(cx)
4745 .file()
4746 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4747 project.client().telemetry().report_inline_completion_event(
4748 provider.name().into(),
4749 accepted,
4750 extension,
4751 );
4752 }
4753
4754 pub fn has_active_inline_completion(&self) -> bool {
4755 self.active_inline_completion.is_some()
4756 }
4757
4758 fn take_active_inline_completion(
4759 &mut self,
4760 cx: &mut ViewContext<Self>,
4761 ) -> Option<InlineCompletion> {
4762 let active_inline_completion = self.active_inline_completion.take()?;
4763 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4764 self.clear_highlights::<InlineCompletionHighlight>(cx);
4765 Some(active_inline_completion.completion)
4766 }
4767
4768 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4769 let selection = self.selections.newest_anchor();
4770 let cursor = selection.head();
4771 let multibuffer = self.buffer.read(cx).snapshot(cx);
4772 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4773 let excerpt_id = cursor.excerpt_id;
4774
4775 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4776 && (self.context_menu.borrow().is_some()
4777 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4778 if completions_menu_has_precedence
4779 || !offset_selection.is_empty()
4780 || self
4781 .active_inline_completion
4782 .as_ref()
4783 .map_or(false, |completion| {
4784 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4785 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4786 !invalidation_range.contains(&offset_selection.head())
4787 })
4788 {
4789 self.discard_inline_completion(false, cx);
4790 return None;
4791 }
4792
4793 self.take_active_inline_completion(cx);
4794 let provider = self.inline_completion_provider()?;
4795
4796 let (buffer, cursor_buffer_position) =
4797 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4798
4799 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4800 let edits = completion
4801 .edits
4802 .into_iter()
4803 .flat_map(|(range, new_text)| {
4804 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4805 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4806 Some((start..end, new_text))
4807 })
4808 .collect::<Vec<_>>();
4809 if edits.is_empty() {
4810 return None;
4811 }
4812
4813 let first_edit_start = edits.first().unwrap().0.start;
4814 let edit_start_row = first_edit_start
4815 .to_point(&multibuffer)
4816 .row
4817 .saturating_sub(2);
4818
4819 let last_edit_end = edits.last().unwrap().0.end;
4820 let edit_end_row = cmp::min(
4821 multibuffer.max_point().row,
4822 last_edit_end.to_point(&multibuffer).row + 2,
4823 );
4824
4825 let cursor_row = cursor.to_point(&multibuffer).row;
4826
4827 let mut inlay_ids = Vec::new();
4828 let invalidation_row_range;
4829 let completion;
4830 if cursor_row < edit_start_row {
4831 invalidation_row_range = cursor_row..edit_end_row;
4832 completion = InlineCompletion::Move(first_edit_start);
4833 } else if cursor_row > edit_end_row {
4834 invalidation_row_range = edit_start_row..cursor_row;
4835 completion = InlineCompletion::Move(first_edit_start);
4836 } else {
4837 if edits
4838 .iter()
4839 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4840 {
4841 let mut inlays = Vec::new();
4842 for (range, new_text) in &edits {
4843 let inlay = Inlay::inline_completion(
4844 post_inc(&mut self.next_inlay_id),
4845 range.start,
4846 new_text.as_str(),
4847 );
4848 inlay_ids.push(inlay.id);
4849 inlays.push(inlay);
4850 }
4851
4852 self.splice_inlays(vec![], inlays, cx);
4853 } else {
4854 let background_color = cx.theme().status().deleted_background;
4855 self.highlight_text::<InlineCompletionHighlight>(
4856 edits.iter().map(|(range, _)| range.clone()).collect(),
4857 HighlightStyle {
4858 background_color: Some(background_color),
4859 ..Default::default()
4860 },
4861 cx,
4862 );
4863 }
4864
4865 invalidation_row_range = edit_start_row..edit_end_row;
4866 completion = InlineCompletion::Edit(edits);
4867 };
4868
4869 let invalidation_range = multibuffer
4870 .anchor_before(Point::new(invalidation_row_range.start, 0))
4871 ..multibuffer.anchor_after(Point::new(
4872 invalidation_row_range.end,
4873 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4874 ));
4875
4876 self.active_inline_completion = Some(InlineCompletionState {
4877 inlay_ids,
4878 completion,
4879 invalidation_range,
4880 });
4881
4882 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4883 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4884 match self.context_menu.borrow_mut().as_mut() {
4885 Some(CodeContextMenu::Completions(menu)) => {
4886 menu.show_inline_completion_hint(hint);
4887 }
4888 _ => {}
4889 }
4890 }
4891 }
4892
4893 cx.notify();
4894
4895 Some(())
4896 }
4897
4898 fn inline_completion_menu_hint(
4899 &mut self,
4900 cx: &mut ViewContext<Self>,
4901 ) -> Option<InlineCompletionMenuHint> {
4902 if self.has_active_inline_completion() {
4903 let provider_name = self.inline_completion_provider()?.display_name();
4904 let editor_snapshot = self.snapshot(cx);
4905
4906 let text = match &self.active_inline_completion.as_ref()?.completion {
4907 InlineCompletion::Edit(edits) => {
4908 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4909 }
4910 InlineCompletion::Move(target) => {
4911 let target_point =
4912 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4913 let target_line = target_point.row + 1;
4914 InlineCompletionText::Move(
4915 format!("Jump to edit in line {}", target_line).into(),
4916 )
4917 }
4918 };
4919
4920 Some(InlineCompletionMenuHint {
4921 provider_name,
4922 text,
4923 })
4924 } else {
4925 None
4926 }
4927 }
4928
4929 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4930 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4931 }
4932
4933 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4934 EditorSettings::get_global(cx).show_inline_completions_in_menu
4935 && self
4936 .inline_completion_provider()
4937 .map_or(false, |provider| provider.show_completions_in_menu())
4938 }
4939
4940 fn render_code_actions_indicator(
4941 &self,
4942 _style: &EditorStyle,
4943 row: DisplayRow,
4944 is_active: bool,
4945 cx: &mut ViewContext<Self>,
4946 ) -> Option<IconButton> {
4947 if self.available_code_actions.is_some() {
4948 Some(
4949 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4950 .shape(ui::IconButtonShape::Square)
4951 .icon_size(IconSize::XSmall)
4952 .icon_color(Color::Muted)
4953 .toggle_state(is_active)
4954 .tooltip({
4955 let focus_handle = self.focus_handle.clone();
4956 move |cx| {
4957 Tooltip::for_action_in(
4958 "Toggle Code Actions",
4959 &ToggleCodeActions {
4960 deployed_from_indicator: None,
4961 },
4962 &focus_handle,
4963 cx,
4964 )
4965 }
4966 })
4967 .on_click(cx.listener(move |editor, _e, cx| {
4968 editor.focus(cx);
4969 editor.toggle_code_actions(
4970 &ToggleCodeActions {
4971 deployed_from_indicator: Some(row),
4972 },
4973 cx,
4974 );
4975 })),
4976 )
4977 } else {
4978 None
4979 }
4980 }
4981
4982 fn clear_tasks(&mut self) {
4983 self.tasks.clear()
4984 }
4985
4986 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4987 if self.tasks.insert(key, value).is_some() {
4988 // This case should hopefully be rare, but just in case...
4989 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4990 }
4991 }
4992
4993 fn build_tasks_context(
4994 project: &Model<Project>,
4995 buffer: &Model<Buffer>,
4996 buffer_row: u32,
4997 tasks: &Arc<RunnableTasks>,
4998 cx: &mut ViewContext<Self>,
4999 ) -> Task<Option<task::TaskContext>> {
5000 let position = Point::new(buffer_row, tasks.column);
5001 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5002 let location = Location {
5003 buffer: buffer.clone(),
5004 range: range_start..range_start,
5005 };
5006 // Fill in the environmental variables from the tree-sitter captures
5007 let mut captured_task_variables = TaskVariables::default();
5008 for (capture_name, value) in tasks.extra_variables.clone() {
5009 captured_task_variables.insert(
5010 task::VariableName::Custom(capture_name.into()),
5011 value.clone(),
5012 );
5013 }
5014 project.update(cx, |project, cx| {
5015 project.task_store().update(cx, |task_store, cx| {
5016 task_store.task_context_for_location(captured_task_variables, location, cx)
5017 })
5018 })
5019 }
5020
5021 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5022 let Some((workspace, _)) = self.workspace.clone() else {
5023 return;
5024 };
5025 let Some(project) = self.project.clone() else {
5026 return;
5027 };
5028
5029 // Try to find a closest, enclosing node using tree-sitter that has a
5030 // task
5031 let Some((buffer, buffer_row, tasks)) = self
5032 .find_enclosing_node_task(cx)
5033 // Or find the task that's closest in row-distance.
5034 .or_else(|| self.find_closest_task(cx))
5035 else {
5036 return;
5037 };
5038
5039 let reveal_strategy = action.reveal;
5040 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5041 cx.spawn(|_, mut cx| async move {
5042 let context = task_context.await?;
5043 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5044
5045 let resolved = resolved_task.resolved.as_mut()?;
5046 resolved.reveal = reveal_strategy;
5047
5048 workspace
5049 .update(&mut cx, |workspace, cx| {
5050 workspace::tasks::schedule_resolved_task(
5051 workspace,
5052 task_source_kind,
5053 resolved_task,
5054 false,
5055 cx,
5056 );
5057 })
5058 .ok()
5059 })
5060 .detach();
5061 }
5062
5063 fn find_closest_task(
5064 &mut self,
5065 cx: &mut ViewContext<Self>,
5066 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5067 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5068
5069 let ((buffer_id, row), tasks) = self
5070 .tasks
5071 .iter()
5072 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5073
5074 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5075 let tasks = Arc::new(tasks.to_owned());
5076 Some((buffer, *row, tasks))
5077 }
5078
5079 fn find_enclosing_node_task(
5080 &mut self,
5081 cx: &mut ViewContext<Self>,
5082 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5083 let snapshot = self.buffer.read(cx).snapshot(cx);
5084 let offset = self.selections.newest::<usize>(cx).head();
5085 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5086 let buffer_id = excerpt.buffer().remote_id();
5087
5088 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5089 let mut cursor = layer.node().walk();
5090
5091 while cursor.goto_first_child_for_byte(offset).is_some() {
5092 if cursor.node().end_byte() == offset {
5093 cursor.goto_next_sibling();
5094 }
5095 }
5096
5097 // Ascend to the smallest ancestor that contains the range and has a task.
5098 loop {
5099 let node = cursor.node();
5100 let node_range = node.byte_range();
5101 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5102
5103 // Check if this node contains our offset
5104 if node_range.start <= offset && node_range.end >= offset {
5105 // If it contains offset, check for task
5106 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5107 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5108 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5109 }
5110 }
5111
5112 if !cursor.goto_parent() {
5113 break;
5114 }
5115 }
5116 None
5117 }
5118
5119 fn render_run_indicator(
5120 &self,
5121 _style: &EditorStyle,
5122 is_active: bool,
5123 row: DisplayRow,
5124 cx: &mut ViewContext<Self>,
5125 ) -> IconButton {
5126 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5127 .shape(ui::IconButtonShape::Square)
5128 .icon_size(IconSize::XSmall)
5129 .icon_color(Color::Muted)
5130 .toggle_state(is_active)
5131 .on_click(cx.listener(move |editor, _e, cx| {
5132 editor.focus(cx);
5133 editor.toggle_code_actions(
5134 &ToggleCodeActions {
5135 deployed_from_indicator: Some(row),
5136 },
5137 cx,
5138 );
5139 }))
5140 }
5141
5142 #[cfg(any(feature = "test-support", test))]
5143 pub fn context_menu_visible(&self) -> bool {
5144 self.context_menu
5145 .borrow()
5146 .as_ref()
5147 .map_or(false, |menu| menu.visible())
5148 }
5149
5150 #[cfg(feature = "test-support")]
5151 pub fn context_menu_contains_inline_completion(&self) -> bool {
5152 self.context_menu
5153 .borrow()
5154 .as_ref()
5155 .map_or(false, |menu| match menu {
5156 CodeContextMenu::Completions(menu) => menu.entries.first().map_or(false, |entry| {
5157 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5158 }),
5159 CodeContextMenu::CodeActions(_) => false,
5160 })
5161 }
5162
5163 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5164 self.context_menu
5165 .borrow()
5166 .as_ref()
5167 .map(|menu| menu.origin(cursor_position))
5168 }
5169
5170 fn render_context_menu(
5171 &self,
5172 style: &EditorStyle,
5173 max_height_in_lines: u32,
5174 cx: &mut ViewContext<Editor>,
5175 ) -> Option<AnyElement> {
5176 self.context_menu.borrow().as_ref().and_then(|menu| {
5177 if menu.visible() {
5178 Some(menu.render(style, max_height_in_lines, cx))
5179 } else {
5180 None
5181 }
5182 })
5183 }
5184
5185 fn render_context_menu_aside(
5186 &self,
5187 style: &EditorStyle,
5188 max_size: Size<Pixels>,
5189 cx: &mut ViewContext<Editor>,
5190 ) -> Option<AnyElement> {
5191 self.context_menu.borrow().as_ref().and_then(|menu| {
5192 if menu.visible() {
5193 menu.render_aside(
5194 style,
5195 max_size,
5196 self.workspace.as_ref().map(|(w, _)| w.clone()),
5197 cx,
5198 )
5199 } else {
5200 None
5201 }
5202 })
5203 }
5204
5205 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5206 cx.notify();
5207 self.completion_tasks.clear();
5208 let context_menu = self.context_menu.borrow_mut().take();
5209 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5210 self.update_visible_inline_completion(cx);
5211 }
5212 context_menu
5213 }
5214
5215 fn show_snippet_choices(
5216 &mut self,
5217 choices: &Vec<String>,
5218 selection: Range<Anchor>,
5219 cx: &mut ViewContext<Self>,
5220 ) {
5221 if selection.start.buffer_id.is_none() {
5222 return;
5223 }
5224 let buffer_id = selection.start.buffer_id.unwrap();
5225 let buffer = self.buffer().read(cx).buffer(buffer_id);
5226 let id = post_inc(&mut self.next_completion_id);
5227
5228 if let Some(buffer) = buffer {
5229 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5230 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5231 ));
5232 }
5233 }
5234
5235 pub fn insert_snippet(
5236 &mut self,
5237 insertion_ranges: &[Range<usize>],
5238 snippet: Snippet,
5239 cx: &mut ViewContext<Self>,
5240 ) -> Result<()> {
5241 struct Tabstop<T> {
5242 is_end_tabstop: bool,
5243 ranges: Vec<Range<T>>,
5244 choices: Option<Vec<String>>,
5245 }
5246
5247 let tabstops = self.buffer.update(cx, |buffer, cx| {
5248 let snippet_text: Arc<str> = snippet.text.clone().into();
5249 buffer.edit(
5250 insertion_ranges
5251 .iter()
5252 .cloned()
5253 .map(|range| (range, snippet_text.clone())),
5254 Some(AutoindentMode::EachLine),
5255 cx,
5256 );
5257
5258 let snapshot = &*buffer.read(cx);
5259 let snippet = &snippet;
5260 snippet
5261 .tabstops
5262 .iter()
5263 .map(|tabstop| {
5264 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5265 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5266 });
5267 let mut tabstop_ranges = tabstop
5268 .ranges
5269 .iter()
5270 .flat_map(|tabstop_range| {
5271 let mut delta = 0_isize;
5272 insertion_ranges.iter().map(move |insertion_range| {
5273 let insertion_start = insertion_range.start as isize + delta;
5274 delta +=
5275 snippet.text.len() as isize - insertion_range.len() as isize;
5276
5277 let start = ((insertion_start + tabstop_range.start) as usize)
5278 .min(snapshot.len());
5279 let end = ((insertion_start + tabstop_range.end) as usize)
5280 .min(snapshot.len());
5281 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5282 })
5283 })
5284 .collect::<Vec<_>>();
5285 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5286
5287 Tabstop {
5288 is_end_tabstop,
5289 ranges: tabstop_ranges,
5290 choices: tabstop.choices.clone(),
5291 }
5292 })
5293 .collect::<Vec<_>>()
5294 });
5295 if let Some(tabstop) = tabstops.first() {
5296 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5297 s.select_ranges(tabstop.ranges.iter().cloned());
5298 });
5299
5300 if let Some(choices) = &tabstop.choices {
5301 if let Some(selection) = tabstop.ranges.first() {
5302 self.show_snippet_choices(choices, selection.clone(), cx)
5303 }
5304 }
5305
5306 // If we're already at the last tabstop and it's at the end of the snippet,
5307 // we're done, we don't need to keep the state around.
5308 if !tabstop.is_end_tabstop {
5309 let choices = tabstops
5310 .iter()
5311 .map(|tabstop| tabstop.choices.clone())
5312 .collect();
5313
5314 let ranges = tabstops
5315 .into_iter()
5316 .map(|tabstop| tabstop.ranges)
5317 .collect::<Vec<_>>();
5318
5319 self.snippet_stack.push(SnippetState {
5320 active_index: 0,
5321 ranges,
5322 choices,
5323 });
5324 }
5325
5326 // Check whether the just-entered snippet ends with an auto-closable bracket.
5327 if self.autoclose_regions.is_empty() {
5328 let snapshot = self.buffer.read(cx).snapshot(cx);
5329 for selection in &mut self.selections.all::<Point>(cx) {
5330 let selection_head = selection.head();
5331 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5332 continue;
5333 };
5334
5335 let mut bracket_pair = None;
5336 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5337 let prev_chars = snapshot
5338 .reversed_chars_at(selection_head)
5339 .collect::<String>();
5340 for (pair, enabled) in scope.brackets() {
5341 if enabled
5342 && pair.close
5343 && prev_chars.starts_with(pair.start.as_str())
5344 && next_chars.starts_with(pair.end.as_str())
5345 {
5346 bracket_pair = Some(pair.clone());
5347 break;
5348 }
5349 }
5350 if let Some(pair) = bracket_pair {
5351 let start = snapshot.anchor_after(selection_head);
5352 let end = snapshot.anchor_after(selection_head);
5353 self.autoclose_regions.push(AutocloseRegion {
5354 selection_id: selection.id,
5355 range: start..end,
5356 pair,
5357 });
5358 }
5359 }
5360 }
5361 }
5362 Ok(())
5363 }
5364
5365 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5366 self.move_to_snippet_tabstop(Bias::Right, cx)
5367 }
5368
5369 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5370 self.move_to_snippet_tabstop(Bias::Left, cx)
5371 }
5372
5373 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5374 if let Some(mut snippet) = self.snippet_stack.pop() {
5375 match bias {
5376 Bias::Left => {
5377 if snippet.active_index > 0 {
5378 snippet.active_index -= 1;
5379 } else {
5380 self.snippet_stack.push(snippet);
5381 return false;
5382 }
5383 }
5384 Bias::Right => {
5385 if snippet.active_index + 1 < snippet.ranges.len() {
5386 snippet.active_index += 1;
5387 } else {
5388 self.snippet_stack.push(snippet);
5389 return false;
5390 }
5391 }
5392 }
5393 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5394 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5395 s.select_anchor_ranges(current_ranges.iter().cloned())
5396 });
5397
5398 if let Some(choices) = &snippet.choices[snippet.active_index] {
5399 if let Some(selection) = current_ranges.first() {
5400 self.show_snippet_choices(&choices, selection.clone(), cx);
5401 }
5402 }
5403
5404 // If snippet state is not at the last tabstop, push it back on the stack
5405 if snippet.active_index + 1 < snippet.ranges.len() {
5406 self.snippet_stack.push(snippet);
5407 }
5408 return true;
5409 }
5410 }
5411
5412 false
5413 }
5414
5415 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5416 self.transact(cx, |this, cx| {
5417 this.select_all(&SelectAll, cx);
5418 this.insert("", cx);
5419 });
5420 }
5421
5422 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5423 self.transact(cx, |this, cx| {
5424 this.select_autoclose_pair(cx);
5425 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5426 if !this.linked_edit_ranges.is_empty() {
5427 let selections = this.selections.all::<MultiBufferPoint>(cx);
5428 let snapshot = this.buffer.read(cx).snapshot(cx);
5429
5430 for selection in selections.iter() {
5431 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5432 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5433 if selection_start.buffer_id != selection_end.buffer_id {
5434 continue;
5435 }
5436 if let Some(ranges) =
5437 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5438 {
5439 for (buffer, entries) in ranges {
5440 linked_ranges.entry(buffer).or_default().extend(entries);
5441 }
5442 }
5443 }
5444 }
5445
5446 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5447 if !this.selections.line_mode {
5448 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5449 for selection in &mut selections {
5450 if selection.is_empty() {
5451 let old_head = selection.head();
5452 let mut new_head =
5453 movement::left(&display_map, old_head.to_display_point(&display_map))
5454 .to_point(&display_map);
5455 if let Some((buffer, line_buffer_range)) = display_map
5456 .buffer_snapshot
5457 .buffer_line_for_row(MultiBufferRow(old_head.row))
5458 {
5459 let indent_size =
5460 buffer.indent_size_for_line(line_buffer_range.start.row);
5461 let indent_len = match indent_size.kind {
5462 IndentKind::Space => {
5463 buffer.settings_at(line_buffer_range.start, cx).tab_size
5464 }
5465 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5466 };
5467 if old_head.column <= indent_size.len && old_head.column > 0 {
5468 let indent_len = indent_len.get();
5469 new_head = cmp::min(
5470 new_head,
5471 MultiBufferPoint::new(
5472 old_head.row,
5473 ((old_head.column - 1) / indent_len) * indent_len,
5474 ),
5475 );
5476 }
5477 }
5478
5479 selection.set_head(new_head, SelectionGoal::None);
5480 }
5481 }
5482 }
5483
5484 this.signature_help_state.set_backspace_pressed(true);
5485 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5486 this.insert("", cx);
5487 let empty_str: Arc<str> = Arc::from("");
5488 for (buffer, edits) in linked_ranges {
5489 let snapshot = buffer.read(cx).snapshot();
5490 use text::ToPoint as TP;
5491
5492 let edits = edits
5493 .into_iter()
5494 .map(|range| {
5495 let end_point = TP::to_point(&range.end, &snapshot);
5496 let mut start_point = TP::to_point(&range.start, &snapshot);
5497
5498 if end_point == start_point {
5499 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5500 .saturating_sub(1);
5501 start_point =
5502 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5503 };
5504
5505 (start_point..end_point, empty_str.clone())
5506 })
5507 .sorted_by_key(|(range, _)| range.start)
5508 .collect::<Vec<_>>();
5509 buffer.update(cx, |this, cx| {
5510 this.edit(edits, None, cx);
5511 })
5512 }
5513 this.refresh_inline_completion(true, false, cx);
5514 linked_editing_ranges::refresh_linked_ranges(this, cx);
5515 });
5516 }
5517
5518 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5519 self.transact(cx, |this, cx| {
5520 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5521 let line_mode = s.line_mode;
5522 s.move_with(|map, selection| {
5523 if selection.is_empty() && !line_mode {
5524 let cursor = movement::right(map, selection.head());
5525 selection.end = cursor;
5526 selection.reversed = true;
5527 selection.goal = SelectionGoal::None;
5528 }
5529 })
5530 });
5531 this.insert("", cx);
5532 this.refresh_inline_completion(true, false, cx);
5533 });
5534 }
5535
5536 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5537 if self.move_to_prev_snippet_tabstop(cx) {
5538 return;
5539 }
5540
5541 self.outdent(&Outdent, cx);
5542 }
5543
5544 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5545 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5546 return;
5547 }
5548
5549 let mut selections = self.selections.all_adjusted(cx);
5550 let buffer = self.buffer.read(cx);
5551 let snapshot = buffer.snapshot(cx);
5552 let rows_iter = selections.iter().map(|s| s.head().row);
5553 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5554
5555 let mut edits = Vec::new();
5556 let mut prev_edited_row = 0;
5557 let mut row_delta = 0;
5558 for selection in &mut selections {
5559 if selection.start.row != prev_edited_row {
5560 row_delta = 0;
5561 }
5562 prev_edited_row = selection.end.row;
5563
5564 // If the selection is non-empty, then increase the indentation of the selected lines.
5565 if !selection.is_empty() {
5566 row_delta =
5567 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5568 continue;
5569 }
5570
5571 // If the selection is empty and the cursor is in the leading whitespace before the
5572 // suggested indentation, then auto-indent the line.
5573 let cursor = selection.head();
5574 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5575 if let Some(suggested_indent) =
5576 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5577 {
5578 if cursor.column < suggested_indent.len
5579 && cursor.column <= current_indent.len
5580 && current_indent.len <= suggested_indent.len
5581 {
5582 selection.start = Point::new(cursor.row, suggested_indent.len);
5583 selection.end = selection.start;
5584 if row_delta == 0 {
5585 edits.extend(Buffer::edit_for_indent_size_adjustment(
5586 cursor.row,
5587 current_indent,
5588 suggested_indent,
5589 ));
5590 row_delta = suggested_indent.len - current_indent.len;
5591 }
5592 continue;
5593 }
5594 }
5595
5596 // Otherwise, insert a hard or soft tab.
5597 let settings = buffer.settings_at(cursor, cx);
5598 let tab_size = if settings.hard_tabs {
5599 IndentSize::tab()
5600 } else {
5601 let tab_size = settings.tab_size.get();
5602 let char_column = snapshot
5603 .text_for_range(Point::new(cursor.row, 0)..cursor)
5604 .flat_map(str::chars)
5605 .count()
5606 + row_delta as usize;
5607 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5608 IndentSize::spaces(chars_to_next_tab_stop)
5609 };
5610 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5611 selection.end = selection.start;
5612 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5613 row_delta += tab_size.len;
5614 }
5615
5616 self.transact(cx, |this, cx| {
5617 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5618 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5619 this.refresh_inline_completion(true, false, cx);
5620 });
5621 }
5622
5623 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5624 if self.read_only(cx) {
5625 return;
5626 }
5627 let mut selections = self.selections.all::<Point>(cx);
5628 let mut prev_edited_row = 0;
5629 let mut row_delta = 0;
5630 let mut edits = Vec::new();
5631 let buffer = self.buffer.read(cx);
5632 let snapshot = buffer.snapshot(cx);
5633 for selection in &mut selections {
5634 if selection.start.row != prev_edited_row {
5635 row_delta = 0;
5636 }
5637 prev_edited_row = selection.end.row;
5638
5639 row_delta =
5640 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5641 }
5642
5643 self.transact(cx, |this, cx| {
5644 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5645 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5646 });
5647 }
5648
5649 fn indent_selection(
5650 buffer: &MultiBuffer,
5651 snapshot: &MultiBufferSnapshot,
5652 selection: &mut Selection<Point>,
5653 edits: &mut Vec<(Range<Point>, String)>,
5654 delta_for_start_row: u32,
5655 cx: &AppContext,
5656 ) -> u32 {
5657 let settings = buffer.settings_at(selection.start, cx);
5658 let tab_size = settings.tab_size.get();
5659 let indent_kind = if settings.hard_tabs {
5660 IndentKind::Tab
5661 } else {
5662 IndentKind::Space
5663 };
5664 let mut start_row = selection.start.row;
5665 let mut end_row = selection.end.row + 1;
5666
5667 // If a selection ends at the beginning of a line, don't indent
5668 // that last line.
5669 if selection.end.column == 0 && selection.end.row > selection.start.row {
5670 end_row -= 1;
5671 }
5672
5673 // Avoid re-indenting a row that has already been indented by a
5674 // previous selection, but still update this selection's column
5675 // to reflect that indentation.
5676 if delta_for_start_row > 0 {
5677 start_row += 1;
5678 selection.start.column += delta_for_start_row;
5679 if selection.end.row == selection.start.row {
5680 selection.end.column += delta_for_start_row;
5681 }
5682 }
5683
5684 let mut delta_for_end_row = 0;
5685 let has_multiple_rows = start_row + 1 != end_row;
5686 for row in start_row..end_row {
5687 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5688 let indent_delta = match (current_indent.kind, indent_kind) {
5689 (IndentKind::Space, IndentKind::Space) => {
5690 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5691 IndentSize::spaces(columns_to_next_tab_stop)
5692 }
5693 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5694 (_, IndentKind::Tab) => IndentSize::tab(),
5695 };
5696
5697 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5698 0
5699 } else {
5700 selection.start.column
5701 };
5702 let row_start = Point::new(row, start);
5703 edits.push((
5704 row_start..row_start,
5705 indent_delta.chars().collect::<String>(),
5706 ));
5707
5708 // Update this selection's endpoints to reflect the indentation.
5709 if row == selection.start.row {
5710 selection.start.column += indent_delta.len;
5711 }
5712 if row == selection.end.row {
5713 selection.end.column += indent_delta.len;
5714 delta_for_end_row = indent_delta.len;
5715 }
5716 }
5717
5718 if selection.start.row == selection.end.row {
5719 delta_for_start_row + delta_for_end_row
5720 } else {
5721 delta_for_end_row
5722 }
5723 }
5724
5725 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5726 if self.read_only(cx) {
5727 return;
5728 }
5729 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5730 let selections = self.selections.all::<Point>(cx);
5731 let mut deletion_ranges = Vec::new();
5732 let mut last_outdent = None;
5733 {
5734 let buffer = self.buffer.read(cx);
5735 let snapshot = buffer.snapshot(cx);
5736 for selection in &selections {
5737 let settings = buffer.settings_at(selection.start, cx);
5738 let tab_size = settings.tab_size.get();
5739 let mut rows = selection.spanned_rows(false, &display_map);
5740
5741 // Avoid re-outdenting a row that has already been outdented by a
5742 // previous selection.
5743 if let Some(last_row) = last_outdent {
5744 if last_row == rows.start {
5745 rows.start = rows.start.next_row();
5746 }
5747 }
5748 let has_multiple_rows = rows.len() > 1;
5749 for row in rows.iter_rows() {
5750 let indent_size = snapshot.indent_size_for_line(row);
5751 if indent_size.len > 0 {
5752 let deletion_len = match indent_size.kind {
5753 IndentKind::Space => {
5754 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5755 if columns_to_prev_tab_stop == 0 {
5756 tab_size
5757 } else {
5758 columns_to_prev_tab_stop
5759 }
5760 }
5761 IndentKind::Tab => 1,
5762 };
5763 let start = if has_multiple_rows
5764 || deletion_len > selection.start.column
5765 || indent_size.len < selection.start.column
5766 {
5767 0
5768 } else {
5769 selection.start.column - deletion_len
5770 };
5771 deletion_ranges.push(
5772 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5773 );
5774 last_outdent = Some(row);
5775 }
5776 }
5777 }
5778 }
5779
5780 self.transact(cx, |this, cx| {
5781 this.buffer.update(cx, |buffer, cx| {
5782 let empty_str: Arc<str> = Arc::default();
5783 buffer.edit(
5784 deletion_ranges
5785 .into_iter()
5786 .map(|range| (range, empty_str.clone())),
5787 None,
5788 cx,
5789 );
5790 });
5791 let selections = this.selections.all::<usize>(cx);
5792 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5793 });
5794 }
5795
5796 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5797 if self.read_only(cx) {
5798 return;
5799 }
5800 let selections = self
5801 .selections
5802 .all::<usize>(cx)
5803 .into_iter()
5804 .map(|s| s.range());
5805
5806 self.transact(cx, |this, cx| {
5807 this.buffer.update(cx, |buffer, cx| {
5808 buffer.autoindent_ranges(selections, cx);
5809 });
5810 let selections = this.selections.all::<usize>(cx);
5811 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5812 });
5813 }
5814
5815 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5816 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5817 let selections = self.selections.all::<Point>(cx);
5818
5819 let mut new_cursors = Vec::new();
5820 let mut edit_ranges = Vec::new();
5821 let mut selections = selections.iter().peekable();
5822 while let Some(selection) = selections.next() {
5823 let mut rows = selection.spanned_rows(false, &display_map);
5824 let goal_display_column = selection.head().to_display_point(&display_map).column();
5825
5826 // Accumulate contiguous regions of rows that we want to delete.
5827 while let Some(next_selection) = selections.peek() {
5828 let next_rows = next_selection.spanned_rows(false, &display_map);
5829 if next_rows.start <= rows.end {
5830 rows.end = next_rows.end;
5831 selections.next().unwrap();
5832 } else {
5833 break;
5834 }
5835 }
5836
5837 let buffer = &display_map.buffer_snapshot;
5838 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5839 let edit_end;
5840 let cursor_buffer_row;
5841 if buffer.max_point().row >= rows.end.0 {
5842 // If there's a line after the range, delete the \n from the end of the row range
5843 // and position the cursor on the next line.
5844 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5845 cursor_buffer_row = rows.end;
5846 } else {
5847 // If there isn't a line after the range, delete the \n from the line before the
5848 // start of the row range and position the cursor there.
5849 edit_start = edit_start.saturating_sub(1);
5850 edit_end = buffer.len();
5851 cursor_buffer_row = rows.start.previous_row();
5852 }
5853
5854 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5855 *cursor.column_mut() =
5856 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5857
5858 new_cursors.push((
5859 selection.id,
5860 buffer.anchor_after(cursor.to_point(&display_map)),
5861 ));
5862 edit_ranges.push(edit_start..edit_end);
5863 }
5864
5865 self.transact(cx, |this, cx| {
5866 let buffer = this.buffer.update(cx, |buffer, cx| {
5867 let empty_str: Arc<str> = Arc::default();
5868 buffer.edit(
5869 edit_ranges
5870 .into_iter()
5871 .map(|range| (range, empty_str.clone())),
5872 None,
5873 cx,
5874 );
5875 buffer.snapshot(cx)
5876 });
5877 let new_selections = new_cursors
5878 .into_iter()
5879 .map(|(id, cursor)| {
5880 let cursor = cursor.to_point(&buffer);
5881 Selection {
5882 id,
5883 start: cursor,
5884 end: cursor,
5885 reversed: false,
5886 goal: SelectionGoal::None,
5887 }
5888 })
5889 .collect();
5890
5891 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5892 s.select(new_selections);
5893 });
5894 });
5895 }
5896
5897 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
5898 if self.read_only(cx) {
5899 return;
5900 }
5901 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5902 for selection in self.selections.all::<Point>(cx) {
5903 let start = MultiBufferRow(selection.start.row);
5904 // Treat single line selections as if they include the next line. Otherwise this action
5905 // would do nothing for single line selections individual cursors.
5906 let end = if selection.start.row == selection.end.row {
5907 MultiBufferRow(selection.start.row + 1)
5908 } else {
5909 MultiBufferRow(selection.end.row)
5910 };
5911
5912 if let Some(last_row_range) = row_ranges.last_mut() {
5913 if start <= last_row_range.end {
5914 last_row_range.end = end;
5915 continue;
5916 }
5917 }
5918 row_ranges.push(start..end);
5919 }
5920
5921 let snapshot = self.buffer.read(cx).snapshot(cx);
5922 let mut cursor_positions = Vec::new();
5923 for row_range in &row_ranges {
5924 let anchor = snapshot.anchor_before(Point::new(
5925 row_range.end.previous_row().0,
5926 snapshot.line_len(row_range.end.previous_row()),
5927 ));
5928 cursor_positions.push(anchor..anchor);
5929 }
5930
5931 self.transact(cx, |this, cx| {
5932 for row_range in row_ranges.into_iter().rev() {
5933 for row in row_range.iter_rows().rev() {
5934 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5935 let next_line_row = row.next_row();
5936 let indent = snapshot.indent_size_for_line(next_line_row);
5937 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5938
5939 let replace =
5940 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
5941 " "
5942 } else {
5943 ""
5944 };
5945
5946 this.buffer.update(cx, |buffer, cx| {
5947 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5948 });
5949 }
5950 }
5951
5952 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5953 s.select_anchor_ranges(cursor_positions)
5954 });
5955 });
5956 }
5957
5958 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5959 self.join_lines_impl(true, cx);
5960 }
5961
5962 pub fn sort_lines_case_sensitive(
5963 &mut self,
5964 _: &SortLinesCaseSensitive,
5965 cx: &mut ViewContext<Self>,
5966 ) {
5967 self.manipulate_lines(cx, |lines| lines.sort())
5968 }
5969
5970 pub fn sort_lines_case_insensitive(
5971 &mut self,
5972 _: &SortLinesCaseInsensitive,
5973 cx: &mut ViewContext<Self>,
5974 ) {
5975 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5976 }
5977
5978 pub fn unique_lines_case_insensitive(
5979 &mut self,
5980 _: &UniqueLinesCaseInsensitive,
5981 cx: &mut ViewContext<Self>,
5982 ) {
5983 self.manipulate_lines(cx, |lines| {
5984 let mut seen = HashSet::default();
5985 lines.retain(|line| seen.insert(line.to_lowercase()));
5986 })
5987 }
5988
5989 pub fn unique_lines_case_sensitive(
5990 &mut self,
5991 _: &UniqueLinesCaseSensitive,
5992 cx: &mut ViewContext<Self>,
5993 ) {
5994 self.manipulate_lines(cx, |lines| {
5995 let mut seen = HashSet::default();
5996 lines.retain(|line| seen.insert(*line));
5997 })
5998 }
5999
6000 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6001 let mut revert_changes = HashMap::default();
6002 let snapshot = self.snapshot(cx);
6003 for hunk in hunks_for_ranges(
6004 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
6005 &snapshot,
6006 ) {
6007 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6008 }
6009 if !revert_changes.is_empty() {
6010 self.transact(cx, |editor, cx| {
6011 editor.revert(revert_changes, cx);
6012 });
6013 }
6014 }
6015
6016 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6017 let Some(project) = self.project.clone() else {
6018 return;
6019 };
6020 self.reload(project, cx).detach_and_notify_err(cx);
6021 }
6022
6023 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6024 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6025 if !revert_changes.is_empty() {
6026 self.transact(cx, |editor, cx| {
6027 editor.revert(revert_changes, cx);
6028 });
6029 }
6030 }
6031
6032 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6033 let snapshot = self.buffer.read(cx).read(cx);
6034 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6035 drop(snapshot);
6036 let mut revert_changes = HashMap::default();
6037 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6038 if !revert_changes.is_empty() {
6039 self.revert(revert_changes, cx)
6040 }
6041 }
6042 }
6043
6044 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6045 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6046 let project_path = buffer.read(cx).project_path(cx)?;
6047 let project = self.project.as_ref()?.read(cx);
6048 let entry = project.entry_for_path(&project_path, cx)?;
6049 let parent = match &entry.canonical_path {
6050 Some(canonical_path) => canonical_path.to_path_buf(),
6051 None => project.absolute_path(&project_path, cx)?,
6052 }
6053 .parent()?
6054 .to_path_buf();
6055 Some(parent)
6056 }) {
6057 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6058 }
6059 }
6060
6061 fn gather_revert_changes(
6062 &mut self,
6063 selections: &[Selection<Point>],
6064 cx: &mut ViewContext<Editor>,
6065 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6066 let mut revert_changes = HashMap::default();
6067 let snapshot = self.snapshot(cx);
6068 for hunk in hunks_for_selections(&snapshot, selections) {
6069 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6070 }
6071 revert_changes
6072 }
6073
6074 pub fn prepare_revert_change(
6075 &mut self,
6076 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6077 hunk: &MultiBufferDiffHunk,
6078 cx: &AppContext,
6079 ) -> Option<()> {
6080 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6081 let buffer = buffer.read(cx);
6082 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6083 let original_text = change_set
6084 .read(cx)
6085 .base_text
6086 .as_ref()?
6087 .read(cx)
6088 .as_rope()
6089 .slice(hunk.diff_base_byte_range.clone());
6090 let buffer_snapshot = buffer.snapshot();
6091 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6092 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6093 probe
6094 .0
6095 .start
6096 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6097 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6098 }) {
6099 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6100 Some(())
6101 } else {
6102 None
6103 }
6104 }
6105
6106 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6107 self.manipulate_lines(cx, |lines| lines.reverse())
6108 }
6109
6110 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6111 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6112 }
6113
6114 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6115 where
6116 Fn: FnMut(&mut Vec<&str>),
6117 {
6118 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6119 let buffer = self.buffer.read(cx).snapshot(cx);
6120
6121 let mut edits = Vec::new();
6122
6123 let selections = self.selections.all::<Point>(cx);
6124 let mut selections = selections.iter().peekable();
6125 let mut contiguous_row_selections = Vec::new();
6126 let mut new_selections = Vec::new();
6127 let mut added_lines = 0;
6128 let mut removed_lines = 0;
6129
6130 while let Some(selection) = selections.next() {
6131 let (start_row, end_row) = consume_contiguous_rows(
6132 &mut contiguous_row_selections,
6133 selection,
6134 &display_map,
6135 &mut selections,
6136 );
6137
6138 let start_point = Point::new(start_row.0, 0);
6139 let end_point = Point::new(
6140 end_row.previous_row().0,
6141 buffer.line_len(end_row.previous_row()),
6142 );
6143 let text = buffer
6144 .text_for_range(start_point..end_point)
6145 .collect::<String>();
6146
6147 let mut lines = text.split('\n').collect_vec();
6148
6149 let lines_before = lines.len();
6150 callback(&mut lines);
6151 let lines_after = lines.len();
6152
6153 edits.push((start_point..end_point, lines.join("\n")));
6154
6155 // Selections must change based on added and removed line count
6156 let start_row =
6157 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6158 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6159 new_selections.push(Selection {
6160 id: selection.id,
6161 start: start_row,
6162 end: end_row,
6163 goal: SelectionGoal::None,
6164 reversed: selection.reversed,
6165 });
6166
6167 if lines_after > lines_before {
6168 added_lines += lines_after - lines_before;
6169 } else if lines_before > lines_after {
6170 removed_lines += lines_before - lines_after;
6171 }
6172 }
6173
6174 self.transact(cx, |this, cx| {
6175 let buffer = this.buffer.update(cx, |buffer, cx| {
6176 buffer.edit(edits, None, cx);
6177 buffer.snapshot(cx)
6178 });
6179
6180 // Recalculate offsets on newly edited buffer
6181 let new_selections = new_selections
6182 .iter()
6183 .map(|s| {
6184 let start_point = Point::new(s.start.0, 0);
6185 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6186 Selection {
6187 id: s.id,
6188 start: buffer.point_to_offset(start_point),
6189 end: buffer.point_to_offset(end_point),
6190 goal: s.goal,
6191 reversed: s.reversed,
6192 }
6193 })
6194 .collect();
6195
6196 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6197 s.select(new_selections);
6198 });
6199
6200 this.request_autoscroll(Autoscroll::fit(), cx);
6201 });
6202 }
6203
6204 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6205 self.manipulate_text(cx, |text| text.to_uppercase())
6206 }
6207
6208 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6209 self.manipulate_text(cx, |text| text.to_lowercase())
6210 }
6211
6212 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6213 self.manipulate_text(cx, |text| {
6214 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6215 // https://github.com/rutrum/convert-case/issues/16
6216 text.split('\n')
6217 .map(|line| line.to_case(Case::Title))
6218 .join("\n")
6219 })
6220 }
6221
6222 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6223 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6224 }
6225
6226 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6227 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6228 }
6229
6230 pub fn convert_to_upper_camel_case(
6231 &mut self,
6232 _: &ConvertToUpperCamelCase,
6233 cx: &mut ViewContext<Self>,
6234 ) {
6235 self.manipulate_text(cx, |text| {
6236 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6237 // https://github.com/rutrum/convert-case/issues/16
6238 text.split('\n')
6239 .map(|line| line.to_case(Case::UpperCamel))
6240 .join("\n")
6241 })
6242 }
6243
6244 pub fn convert_to_lower_camel_case(
6245 &mut self,
6246 _: &ConvertToLowerCamelCase,
6247 cx: &mut ViewContext<Self>,
6248 ) {
6249 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6250 }
6251
6252 pub fn convert_to_opposite_case(
6253 &mut self,
6254 _: &ConvertToOppositeCase,
6255 cx: &mut ViewContext<Self>,
6256 ) {
6257 self.manipulate_text(cx, |text| {
6258 text.chars()
6259 .fold(String::with_capacity(text.len()), |mut t, c| {
6260 if c.is_uppercase() {
6261 t.extend(c.to_lowercase());
6262 } else {
6263 t.extend(c.to_uppercase());
6264 }
6265 t
6266 })
6267 })
6268 }
6269
6270 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6271 where
6272 Fn: FnMut(&str) -> String,
6273 {
6274 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6275 let buffer = self.buffer.read(cx).snapshot(cx);
6276
6277 let mut new_selections = Vec::new();
6278 let mut edits = Vec::new();
6279 let mut selection_adjustment = 0i32;
6280
6281 for selection in self.selections.all::<usize>(cx) {
6282 let selection_is_empty = selection.is_empty();
6283
6284 let (start, end) = if selection_is_empty {
6285 let word_range = movement::surrounding_word(
6286 &display_map,
6287 selection.start.to_display_point(&display_map),
6288 );
6289 let start = word_range.start.to_offset(&display_map, Bias::Left);
6290 let end = word_range.end.to_offset(&display_map, Bias::Left);
6291 (start, end)
6292 } else {
6293 (selection.start, selection.end)
6294 };
6295
6296 let text = buffer.text_for_range(start..end).collect::<String>();
6297 let old_length = text.len() as i32;
6298 let text = callback(&text);
6299
6300 new_selections.push(Selection {
6301 start: (start as i32 - selection_adjustment) as usize,
6302 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6303 goal: SelectionGoal::None,
6304 ..selection
6305 });
6306
6307 selection_adjustment += old_length - text.len() as i32;
6308
6309 edits.push((start..end, text));
6310 }
6311
6312 self.transact(cx, |this, cx| {
6313 this.buffer.update(cx, |buffer, cx| {
6314 buffer.edit(edits, None, cx);
6315 });
6316
6317 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6318 s.select(new_selections);
6319 });
6320
6321 this.request_autoscroll(Autoscroll::fit(), cx);
6322 });
6323 }
6324
6325 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6326 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6327 let buffer = &display_map.buffer_snapshot;
6328 let selections = self.selections.all::<Point>(cx);
6329
6330 let mut edits = Vec::new();
6331 let mut selections_iter = selections.iter().peekable();
6332 while let Some(selection) = selections_iter.next() {
6333 let mut rows = selection.spanned_rows(false, &display_map);
6334 // duplicate line-wise
6335 if whole_lines || selection.start == selection.end {
6336 // Avoid duplicating the same lines twice.
6337 while let Some(next_selection) = selections_iter.peek() {
6338 let next_rows = next_selection.spanned_rows(false, &display_map);
6339 if next_rows.start < rows.end {
6340 rows.end = next_rows.end;
6341 selections_iter.next().unwrap();
6342 } else {
6343 break;
6344 }
6345 }
6346
6347 // Copy the text from the selected row region and splice it either at the start
6348 // or end of the region.
6349 let start = Point::new(rows.start.0, 0);
6350 let end = Point::new(
6351 rows.end.previous_row().0,
6352 buffer.line_len(rows.end.previous_row()),
6353 );
6354 let text = buffer
6355 .text_for_range(start..end)
6356 .chain(Some("\n"))
6357 .collect::<String>();
6358 let insert_location = if upwards {
6359 Point::new(rows.end.0, 0)
6360 } else {
6361 start
6362 };
6363 edits.push((insert_location..insert_location, text));
6364 } else {
6365 // duplicate character-wise
6366 let start = selection.start;
6367 let end = selection.end;
6368 let text = buffer.text_for_range(start..end).collect::<String>();
6369 edits.push((selection.end..selection.end, text));
6370 }
6371 }
6372
6373 self.transact(cx, |this, cx| {
6374 this.buffer.update(cx, |buffer, cx| {
6375 buffer.edit(edits, None, cx);
6376 });
6377
6378 this.request_autoscroll(Autoscroll::fit(), cx);
6379 });
6380 }
6381
6382 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6383 self.duplicate(true, true, cx);
6384 }
6385
6386 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6387 self.duplicate(false, true, cx);
6388 }
6389
6390 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6391 self.duplicate(false, false, cx);
6392 }
6393
6394 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6395 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6396 let buffer = self.buffer.read(cx).snapshot(cx);
6397
6398 let mut edits = Vec::new();
6399 let mut unfold_ranges = Vec::new();
6400 let mut refold_creases = Vec::new();
6401
6402 let selections = self.selections.all::<Point>(cx);
6403 let mut selections = selections.iter().peekable();
6404 let mut contiguous_row_selections = Vec::new();
6405 let mut new_selections = Vec::new();
6406
6407 while let Some(selection) = selections.next() {
6408 // Find all the selections that span a contiguous row range
6409 let (start_row, end_row) = consume_contiguous_rows(
6410 &mut contiguous_row_selections,
6411 selection,
6412 &display_map,
6413 &mut selections,
6414 );
6415
6416 // Move the text spanned by the row range to be before the line preceding the row range
6417 if start_row.0 > 0 {
6418 let range_to_move = Point::new(
6419 start_row.previous_row().0,
6420 buffer.line_len(start_row.previous_row()),
6421 )
6422 ..Point::new(
6423 end_row.previous_row().0,
6424 buffer.line_len(end_row.previous_row()),
6425 );
6426 let insertion_point = display_map
6427 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6428 .0;
6429
6430 // Don't move lines across excerpts
6431 if buffer
6432 .excerpt_boundaries_in_range((
6433 Bound::Excluded(insertion_point),
6434 Bound::Included(range_to_move.end),
6435 ))
6436 .next()
6437 .is_none()
6438 {
6439 let text = buffer
6440 .text_for_range(range_to_move.clone())
6441 .flat_map(|s| s.chars())
6442 .skip(1)
6443 .chain(['\n'])
6444 .collect::<String>();
6445
6446 edits.push((
6447 buffer.anchor_after(range_to_move.start)
6448 ..buffer.anchor_before(range_to_move.end),
6449 String::new(),
6450 ));
6451 let insertion_anchor = buffer.anchor_after(insertion_point);
6452 edits.push((insertion_anchor..insertion_anchor, text));
6453
6454 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6455
6456 // Move selections up
6457 new_selections.extend(contiguous_row_selections.drain(..).map(
6458 |mut selection| {
6459 selection.start.row -= row_delta;
6460 selection.end.row -= row_delta;
6461 selection
6462 },
6463 ));
6464
6465 // Move folds up
6466 unfold_ranges.push(range_to_move.clone());
6467 for fold in display_map.folds_in_range(
6468 buffer.anchor_before(range_to_move.start)
6469 ..buffer.anchor_after(range_to_move.end),
6470 ) {
6471 let mut start = fold.range.start.to_point(&buffer);
6472 let mut end = fold.range.end.to_point(&buffer);
6473 start.row -= row_delta;
6474 end.row -= row_delta;
6475 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6476 }
6477 }
6478 }
6479
6480 // If we didn't move line(s), preserve the existing selections
6481 new_selections.append(&mut contiguous_row_selections);
6482 }
6483
6484 self.transact(cx, |this, cx| {
6485 this.unfold_ranges(&unfold_ranges, true, true, cx);
6486 this.buffer.update(cx, |buffer, cx| {
6487 for (range, text) in edits {
6488 buffer.edit([(range, text)], None, cx);
6489 }
6490 });
6491 this.fold_creases(refold_creases, true, cx);
6492 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6493 s.select(new_selections);
6494 })
6495 });
6496 }
6497
6498 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6499 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6500 let buffer = self.buffer.read(cx).snapshot(cx);
6501
6502 let mut edits = Vec::new();
6503 let mut unfold_ranges = Vec::new();
6504 let mut refold_creases = Vec::new();
6505
6506 let selections = self.selections.all::<Point>(cx);
6507 let mut selections = selections.iter().peekable();
6508 let mut contiguous_row_selections = Vec::new();
6509 let mut new_selections = Vec::new();
6510
6511 while let Some(selection) = selections.next() {
6512 // Find all the selections that span a contiguous row range
6513 let (start_row, end_row) = consume_contiguous_rows(
6514 &mut contiguous_row_selections,
6515 selection,
6516 &display_map,
6517 &mut selections,
6518 );
6519
6520 // Move the text spanned by the row range to be after the last line of the row range
6521 if end_row.0 <= buffer.max_point().row {
6522 let range_to_move =
6523 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6524 let insertion_point = display_map
6525 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6526 .0;
6527
6528 // Don't move lines across excerpt boundaries
6529 if buffer
6530 .excerpt_boundaries_in_range((
6531 Bound::Excluded(range_to_move.start),
6532 Bound::Included(insertion_point),
6533 ))
6534 .next()
6535 .is_none()
6536 {
6537 let mut text = String::from("\n");
6538 text.extend(buffer.text_for_range(range_to_move.clone()));
6539 text.pop(); // Drop trailing newline
6540 edits.push((
6541 buffer.anchor_after(range_to_move.start)
6542 ..buffer.anchor_before(range_to_move.end),
6543 String::new(),
6544 ));
6545 let insertion_anchor = buffer.anchor_after(insertion_point);
6546 edits.push((insertion_anchor..insertion_anchor, text));
6547
6548 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6549
6550 // Move selections down
6551 new_selections.extend(contiguous_row_selections.drain(..).map(
6552 |mut selection| {
6553 selection.start.row += row_delta;
6554 selection.end.row += row_delta;
6555 selection
6556 },
6557 ));
6558
6559 // Move folds down
6560 unfold_ranges.push(range_to_move.clone());
6561 for fold in display_map.folds_in_range(
6562 buffer.anchor_before(range_to_move.start)
6563 ..buffer.anchor_after(range_to_move.end),
6564 ) {
6565 let mut start = fold.range.start.to_point(&buffer);
6566 let mut end = fold.range.end.to_point(&buffer);
6567 start.row += row_delta;
6568 end.row += row_delta;
6569 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6570 }
6571 }
6572 }
6573
6574 // If we didn't move line(s), preserve the existing selections
6575 new_selections.append(&mut contiguous_row_selections);
6576 }
6577
6578 self.transact(cx, |this, cx| {
6579 this.unfold_ranges(&unfold_ranges, true, true, cx);
6580 this.buffer.update(cx, |buffer, cx| {
6581 for (range, text) in edits {
6582 buffer.edit([(range, text)], None, cx);
6583 }
6584 });
6585 this.fold_creases(refold_creases, true, cx);
6586 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6587 });
6588 }
6589
6590 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6591 let text_layout_details = &self.text_layout_details(cx);
6592 self.transact(cx, |this, cx| {
6593 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6594 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6595 let line_mode = s.line_mode;
6596 s.move_with(|display_map, selection| {
6597 if !selection.is_empty() || line_mode {
6598 return;
6599 }
6600
6601 let mut head = selection.head();
6602 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6603 if head.column() == display_map.line_len(head.row()) {
6604 transpose_offset = display_map
6605 .buffer_snapshot
6606 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6607 }
6608
6609 if transpose_offset == 0 {
6610 return;
6611 }
6612
6613 *head.column_mut() += 1;
6614 head = display_map.clip_point(head, Bias::Right);
6615 let goal = SelectionGoal::HorizontalPosition(
6616 display_map
6617 .x_for_display_point(head, text_layout_details)
6618 .into(),
6619 );
6620 selection.collapse_to(head, goal);
6621
6622 let transpose_start = display_map
6623 .buffer_snapshot
6624 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6625 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6626 let transpose_end = display_map
6627 .buffer_snapshot
6628 .clip_offset(transpose_offset + 1, Bias::Right);
6629 if let Some(ch) =
6630 display_map.buffer_snapshot.chars_at(transpose_start).next()
6631 {
6632 edits.push((transpose_start..transpose_offset, String::new()));
6633 edits.push((transpose_end..transpose_end, ch.to_string()));
6634 }
6635 }
6636 });
6637 edits
6638 });
6639 this.buffer
6640 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6641 let selections = this.selections.all::<usize>(cx);
6642 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6643 s.select(selections);
6644 });
6645 });
6646 }
6647
6648 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6649 self.rewrap_impl(IsVimMode::No, cx)
6650 }
6651
6652 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6653 let buffer = self.buffer.read(cx).snapshot(cx);
6654 let selections = self.selections.all::<Point>(cx);
6655 let mut selections = selections.iter().peekable();
6656
6657 let mut edits = Vec::new();
6658 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6659
6660 while let Some(selection) = selections.next() {
6661 let mut start_row = selection.start.row;
6662 let mut end_row = selection.end.row;
6663
6664 // Skip selections that overlap with a range that has already been rewrapped.
6665 let selection_range = start_row..end_row;
6666 if rewrapped_row_ranges
6667 .iter()
6668 .any(|range| range.overlaps(&selection_range))
6669 {
6670 continue;
6671 }
6672
6673 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6674
6675 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6676 match language_scope.language_name().0.as_ref() {
6677 "Markdown" | "Plain Text" => {
6678 should_rewrap = true;
6679 }
6680 _ => {}
6681 }
6682 }
6683
6684 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6685
6686 // Since not all lines in the selection may be at the same indent
6687 // level, choose the indent size that is the most common between all
6688 // of the lines.
6689 //
6690 // If there is a tie, we use the deepest indent.
6691 let (indent_size, indent_end) = {
6692 let mut indent_size_occurrences = HashMap::default();
6693 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6694
6695 for row in start_row..=end_row {
6696 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6697 rows_by_indent_size.entry(indent).or_default().push(row);
6698 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6699 }
6700
6701 let indent_size = indent_size_occurrences
6702 .into_iter()
6703 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6704 .map(|(indent, _)| indent)
6705 .unwrap_or_default();
6706 let row = rows_by_indent_size[&indent_size][0];
6707 let indent_end = Point::new(row, indent_size.len);
6708
6709 (indent_size, indent_end)
6710 };
6711
6712 let mut line_prefix = indent_size.chars().collect::<String>();
6713
6714 if let Some(comment_prefix) =
6715 buffer
6716 .language_scope_at(selection.head())
6717 .and_then(|language| {
6718 language
6719 .line_comment_prefixes()
6720 .iter()
6721 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6722 .cloned()
6723 })
6724 {
6725 line_prefix.push_str(&comment_prefix);
6726 should_rewrap = true;
6727 }
6728
6729 if !should_rewrap {
6730 continue;
6731 }
6732
6733 if selection.is_empty() {
6734 'expand_upwards: while start_row > 0 {
6735 let prev_row = start_row - 1;
6736 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6737 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6738 {
6739 start_row = prev_row;
6740 } else {
6741 break 'expand_upwards;
6742 }
6743 }
6744
6745 'expand_downwards: while end_row < buffer.max_point().row {
6746 let next_row = end_row + 1;
6747 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6748 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6749 {
6750 end_row = next_row;
6751 } else {
6752 break 'expand_downwards;
6753 }
6754 }
6755 }
6756
6757 let start = Point::new(start_row, 0);
6758 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6759 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6760 let Some(lines_without_prefixes) = selection_text
6761 .lines()
6762 .map(|line| {
6763 line.strip_prefix(&line_prefix)
6764 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6765 .ok_or_else(|| {
6766 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6767 })
6768 })
6769 .collect::<Result<Vec<_>, _>>()
6770 .log_err()
6771 else {
6772 continue;
6773 };
6774
6775 let wrap_column = buffer
6776 .settings_at(Point::new(start_row, 0), cx)
6777 .preferred_line_length as usize;
6778 let wrapped_text = wrap_with_prefix(
6779 line_prefix,
6780 lines_without_prefixes.join(" "),
6781 wrap_column,
6782 tab_size,
6783 );
6784
6785 // TODO: should always use char-based diff while still supporting cursor behavior that
6786 // matches vim.
6787 let diff = match is_vim_mode {
6788 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6789 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6790 };
6791 let mut offset = start.to_offset(&buffer);
6792 let mut moved_since_edit = true;
6793
6794 for change in diff.iter_all_changes() {
6795 let value = change.value();
6796 match change.tag() {
6797 ChangeTag::Equal => {
6798 offset += value.len();
6799 moved_since_edit = true;
6800 }
6801 ChangeTag::Delete => {
6802 let start = buffer.anchor_after(offset);
6803 let end = buffer.anchor_before(offset + value.len());
6804
6805 if moved_since_edit {
6806 edits.push((start..end, String::new()));
6807 } else {
6808 edits.last_mut().unwrap().0.end = end;
6809 }
6810
6811 offset += value.len();
6812 moved_since_edit = false;
6813 }
6814 ChangeTag::Insert => {
6815 if moved_since_edit {
6816 let anchor = buffer.anchor_after(offset);
6817 edits.push((anchor..anchor, value.to_string()));
6818 } else {
6819 edits.last_mut().unwrap().1.push_str(value);
6820 }
6821
6822 moved_since_edit = false;
6823 }
6824 }
6825 }
6826
6827 rewrapped_row_ranges.push(start_row..=end_row);
6828 }
6829
6830 self.buffer
6831 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6832 }
6833
6834 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6835 let mut text = String::new();
6836 let buffer = self.buffer.read(cx).snapshot(cx);
6837 let mut selections = self.selections.all::<Point>(cx);
6838 let mut clipboard_selections = Vec::with_capacity(selections.len());
6839 {
6840 let max_point = buffer.max_point();
6841 let mut is_first = true;
6842 for selection in &mut selections {
6843 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6844 if is_entire_line {
6845 selection.start = Point::new(selection.start.row, 0);
6846 if !selection.is_empty() && selection.end.column == 0 {
6847 selection.end = cmp::min(max_point, selection.end);
6848 } else {
6849 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6850 }
6851 selection.goal = SelectionGoal::None;
6852 }
6853 if is_first {
6854 is_first = false;
6855 } else {
6856 text += "\n";
6857 }
6858 let mut len = 0;
6859 for chunk in buffer.text_for_range(selection.start..selection.end) {
6860 text.push_str(chunk);
6861 len += chunk.len();
6862 }
6863 clipboard_selections.push(ClipboardSelection {
6864 len,
6865 is_entire_line,
6866 first_line_indent: buffer
6867 .indent_size_for_line(MultiBufferRow(selection.start.row))
6868 .len,
6869 });
6870 }
6871 }
6872
6873 self.transact(cx, |this, cx| {
6874 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6875 s.select(selections);
6876 });
6877 this.insert("", cx);
6878 });
6879 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6880 }
6881
6882 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6883 let item = self.cut_common(cx);
6884 cx.write_to_clipboard(item);
6885 }
6886
6887 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6888 self.change_selections(None, cx, |s| {
6889 s.move_with(|snapshot, sel| {
6890 if sel.is_empty() {
6891 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6892 }
6893 });
6894 });
6895 let item = self.cut_common(cx);
6896 cx.set_global(KillRing(item))
6897 }
6898
6899 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6900 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6901 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6902 (kill_ring.text().to_string(), kill_ring.metadata_json())
6903 } else {
6904 return;
6905 }
6906 } else {
6907 return;
6908 };
6909 self.do_paste(&text, metadata, false, cx);
6910 }
6911
6912 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6913 let selections = self.selections.all::<Point>(cx);
6914 let buffer = self.buffer.read(cx).read(cx);
6915 let mut text = String::new();
6916
6917 let mut clipboard_selections = Vec::with_capacity(selections.len());
6918 {
6919 let max_point = buffer.max_point();
6920 let mut is_first = true;
6921 for selection in selections.iter() {
6922 let mut start = selection.start;
6923 let mut end = selection.end;
6924 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6925 if is_entire_line {
6926 start = Point::new(start.row, 0);
6927 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6928 }
6929 if is_first {
6930 is_first = false;
6931 } else {
6932 text += "\n";
6933 }
6934 let mut len = 0;
6935 for chunk in buffer.text_for_range(start..end) {
6936 text.push_str(chunk);
6937 len += chunk.len();
6938 }
6939 clipboard_selections.push(ClipboardSelection {
6940 len,
6941 is_entire_line,
6942 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6943 });
6944 }
6945 }
6946
6947 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6948 text,
6949 clipboard_selections,
6950 ));
6951 }
6952
6953 pub fn do_paste(
6954 &mut self,
6955 text: &String,
6956 clipboard_selections: Option<Vec<ClipboardSelection>>,
6957 handle_entire_lines: bool,
6958 cx: &mut ViewContext<Self>,
6959 ) {
6960 if self.read_only(cx) {
6961 return;
6962 }
6963
6964 let clipboard_text = Cow::Borrowed(text);
6965
6966 self.transact(cx, |this, cx| {
6967 if let Some(mut clipboard_selections) = clipboard_selections {
6968 let old_selections = this.selections.all::<usize>(cx);
6969 let all_selections_were_entire_line =
6970 clipboard_selections.iter().all(|s| s.is_entire_line);
6971 let first_selection_indent_column =
6972 clipboard_selections.first().map(|s| s.first_line_indent);
6973 if clipboard_selections.len() != old_selections.len() {
6974 clipboard_selections.drain(..);
6975 }
6976 let cursor_offset = this.selections.last::<usize>(cx).head();
6977 let mut auto_indent_on_paste = true;
6978
6979 this.buffer.update(cx, |buffer, cx| {
6980 let snapshot = buffer.read(cx);
6981 auto_indent_on_paste =
6982 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6983
6984 let mut start_offset = 0;
6985 let mut edits = Vec::new();
6986 let mut original_indent_columns = Vec::new();
6987 for (ix, selection) in old_selections.iter().enumerate() {
6988 let to_insert;
6989 let entire_line;
6990 let original_indent_column;
6991 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6992 let end_offset = start_offset + clipboard_selection.len;
6993 to_insert = &clipboard_text[start_offset..end_offset];
6994 entire_line = clipboard_selection.is_entire_line;
6995 start_offset = end_offset + 1;
6996 original_indent_column = Some(clipboard_selection.first_line_indent);
6997 } else {
6998 to_insert = clipboard_text.as_str();
6999 entire_line = all_selections_were_entire_line;
7000 original_indent_column = first_selection_indent_column
7001 }
7002
7003 // If the corresponding selection was empty when this slice of the
7004 // clipboard text was written, then the entire line containing the
7005 // selection was copied. If this selection is also currently empty,
7006 // then paste the line before the current line of the buffer.
7007 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7008 let column = selection.start.to_point(&snapshot).column as usize;
7009 let line_start = selection.start - column;
7010 line_start..line_start
7011 } else {
7012 selection.range()
7013 };
7014
7015 edits.push((range, to_insert));
7016 original_indent_columns.extend(original_indent_column);
7017 }
7018 drop(snapshot);
7019
7020 buffer.edit(
7021 edits,
7022 if auto_indent_on_paste {
7023 Some(AutoindentMode::Block {
7024 original_indent_columns,
7025 })
7026 } else {
7027 None
7028 },
7029 cx,
7030 );
7031 });
7032
7033 let selections = this.selections.all::<usize>(cx);
7034 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7035 } else {
7036 this.insert(&clipboard_text, cx);
7037 }
7038 });
7039 }
7040
7041 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7042 if let Some(item) = cx.read_from_clipboard() {
7043 let entries = item.entries();
7044
7045 match entries.first() {
7046 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7047 // of all the pasted entries.
7048 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7049 .do_paste(
7050 clipboard_string.text(),
7051 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7052 true,
7053 cx,
7054 ),
7055 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7056 }
7057 }
7058 }
7059
7060 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7061 if self.read_only(cx) {
7062 return;
7063 }
7064
7065 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7066 if let Some((selections, _)) =
7067 self.selection_history.transaction(transaction_id).cloned()
7068 {
7069 self.change_selections(None, cx, |s| {
7070 s.select_anchors(selections.to_vec());
7071 });
7072 }
7073 self.request_autoscroll(Autoscroll::fit(), cx);
7074 self.unmark_text(cx);
7075 self.refresh_inline_completion(true, false, cx);
7076 cx.emit(EditorEvent::Edited { transaction_id });
7077 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7078 }
7079 }
7080
7081 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7082 if self.read_only(cx) {
7083 return;
7084 }
7085
7086 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7087 if let Some((_, Some(selections))) =
7088 self.selection_history.transaction(transaction_id).cloned()
7089 {
7090 self.change_selections(None, cx, |s| {
7091 s.select_anchors(selections.to_vec());
7092 });
7093 }
7094 self.request_autoscroll(Autoscroll::fit(), cx);
7095 self.unmark_text(cx);
7096 self.refresh_inline_completion(true, false, cx);
7097 cx.emit(EditorEvent::Edited { transaction_id });
7098 }
7099 }
7100
7101 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7102 self.buffer
7103 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7104 }
7105
7106 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7107 self.buffer
7108 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7109 }
7110
7111 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7112 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7113 let line_mode = s.line_mode;
7114 s.move_with(|map, selection| {
7115 let cursor = if selection.is_empty() && !line_mode {
7116 movement::left(map, selection.start)
7117 } else {
7118 selection.start
7119 };
7120 selection.collapse_to(cursor, SelectionGoal::None);
7121 });
7122 })
7123 }
7124
7125 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7126 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7127 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7128 })
7129 }
7130
7131 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7132 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7133 let line_mode = s.line_mode;
7134 s.move_with(|map, selection| {
7135 let cursor = if selection.is_empty() && !line_mode {
7136 movement::right(map, selection.end)
7137 } else {
7138 selection.end
7139 };
7140 selection.collapse_to(cursor, SelectionGoal::None)
7141 });
7142 })
7143 }
7144
7145 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7146 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7147 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7148 })
7149 }
7150
7151 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7152 if self.take_rename(true, cx).is_some() {
7153 return;
7154 }
7155
7156 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7157 cx.propagate();
7158 return;
7159 }
7160
7161 let text_layout_details = &self.text_layout_details(cx);
7162 let selection_count = self.selections.count();
7163 let first_selection = self.selections.first_anchor();
7164
7165 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7166 let line_mode = s.line_mode;
7167 s.move_with(|map, selection| {
7168 if !selection.is_empty() && !line_mode {
7169 selection.goal = SelectionGoal::None;
7170 }
7171 let (cursor, goal) = movement::up(
7172 map,
7173 selection.start,
7174 selection.goal,
7175 false,
7176 text_layout_details,
7177 );
7178 selection.collapse_to(cursor, goal);
7179 });
7180 });
7181
7182 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7183 {
7184 cx.propagate();
7185 }
7186 }
7187
7188 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7189 if self.take_rename(true, cx).is_some() {
7190 return;
7191 }
7192
7193 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7194 cx.propagate();
7195 return;
7196 }
7197
7198 let text_layout_details = &self.text_layout_details(cx);
7199
7200 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7201 let line_mode = s.line_mode;
7202 s.move_with(|map, selection| {
7203 if !selection.is_empty() && !line_mode {
7204 selection.goal = SelectionGoal::None;
7205 }
7206 let (cursor, goal) = movement::up_by_rows(
7207 map,
7208 selection.start,
7209 action.lines,
7210 selection.goal,
7211 false,
7212 text_layout_details,
7213 );
7214 selection.collapse_to(cursor, goal);
7215 });
7216 })
7217 }
7218
7219 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7220 if self.take_rename(true, cx).is_some() {
7221 return;
7222 }
7223
7224 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7225 cx.propagate();
7226 return;
7227 }
7228
7229 let text_layout_details = &self.text_layout_details(cx);
7230
7231 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7232 let line_mode = s.line_mode;
7233 s.move_with(|map, selection| {
7234 if !selection.is_empty() && !line_mode {
7235 selection.goal = SelectionGoal::None;
7236 }
7237 let (cursor, goal) = movement::down_by_rows(
7238 map,
7239 selection.start,
7240 action.lines,
7241 selection.goal,
7242 false,
7243 text_layout_details,
7244 );
7245 selection.collapse_to(cursor, goal);
7246 });
7247 })
7248 }
7249
7250 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7251 let text_layout_details = &self.text_layout_details(cx);
7252 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7253 s.move_heads_with(|map, head, goal| {
7254 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7255 })
7256 })
7257 }
7258
7259 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7260 let text_layout_details = &self.text_layout_details(cx);
7261 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7262 s.move_heads_with(|map, head, goal| {
7263 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7264 })
7265 })
7266 }
7267
7268 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7269 let Some(row_count) = self.visible_row_count() else {
7270 return;
7271 };
7272
7273 let text_layout_details = &self.text_layout_details(cx);
7274
7275 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7276 s.move_heads_with(|map, head, goal| {
7277 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7278 })
7279 })
7280 }
7281
7282 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7283 if self.take_rename(true, cx).is_some() {
7284 return;
7285 }
7286
7287 if self
7288 .context_menu
7289 .borrow_mut()
7290 .as_mut()
7291 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7292 .unwrap_or(false)
7293 {
7294 return;
7295 }
7296
7297 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7298 cx.propagate();
7299 return;
7300 }
7301
7302 let Some(row_count) = self.visible_row_count() else {
7303 return;
7304 };
7305
7306 let autoscroll = if action.center_cursor {
7307 Autoscroll::center()
7308 } else {
7309 Autoscroll::fit()
7310 };
7311
7312 let text_layout_details = &self.text_layout_details(cx);
7313
7314 self.change_selections(Some(autoscroll), cx, |s| {
7315 let line_mode = s.line_mode;
7316 s.move_with(|map, selection| {
7317 if !selection.is_empty() && !line_mode {
7318 selection.goal = SelectionGoal::None;
7319 }
7320 let (cursor, goal) = movement::up_by_rows(
7321 map,
7322 selection.end,
7323 row_count,
7324 selection.goal,
7325 false,
7326 text_layout_details,
7327 );
7328 selection.collapse_to(cursor, goal);
7329 });
7330 });
7331 }
7332
7333 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7334 let text_layout_details = &self.text_layout_details(cx);
7335 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7336 s.move_heads_with(|map, head, goal| {
7337 movement::up(map, head, goal, false, text_layout_details)
7338 })
7339 })
7340 }
7341
7342 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7343 self.take_rename(true, cx);
7344
7345 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7346 cx.propagate();
7347 return;
7348 }
7349
7350 let text_layout_details = &self.text_layout_details(cx);
7351 let selection_count = self.selections.count();
7352 let first_selection = self.selections.first_anchor();
7353
7354 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7355 let line_mode = s.line_mode;
7356 s.move_with(|map, selection| {
7357 if !selection.is_empty() && !line_mode {
7358 selection.goal = SelectionGoal::None;
7359 }
7360 let (cursor, goal) = movement::down(
7361 map,
7362 selection.end,
7363 selection.goal,
7364 false,
7365 text_layout_details,
7366 );
7367 selection.collapse_to(cursor, goal);
7368 });
7369 });
7370
7371 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7372 {
7373 cx.propagate();
7374 }
7375 }
7376
7377 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7378 let Some(row_count) = self.visible_row_count() else {
7379 return;
7380 };
7381
7382 let text_layout_details = &self.text_layout_details(cx);
7383
7384 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7385 s.move_heads_with(|map, head, goal| {
7386 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7387 })
7388 })
7389 }
7390
7391 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7392 if self.take_rename(true, cx).is_some() {
7393 return;
7394 }
7395
7396 if self
7397 .context_menu
7398 .borrow_mut()
7399 .as_mut()
7400 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7401 .unwrap_or(false)
7402 {
7403 return;
7404 }
7405
7406 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7407 cx.propagate();
7408 return;
7409 }
7410
7411 let Some(row_count) = self.visible_row_count() else {
7412 return;
7413 };
7414
7415 let autoscroll = if action.center_cursor {
7416 Autoscroll::center()
7417 } else {
7418 Autoscroll::fit()
7419 };
7420
7421 let text_layout_details = &self.text_layout_details(cx);
7422 self.change_selections(Some(autoscroll), cx, |s| {
7423 let line_mode = s.line_mode;
7424 s.move_with(|map, selection| {
7425 if !selection.is_empty() && !line_mode {
7426 selection.goal = SelectionGoal::None;
7427 }
7428 let (cursor, goal) = movement::down_by_rows(
7429 map,
7430 selection.end,
7431 row_count,
7432 selection.goal,
7433 false,
7434 text_layout_details,
7435 );
7436 selection.collapse_to(cursor, goal);
7437 });
7438 });
7439 }
7440
7441 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7442 let text_layout_details = &self.text_layout_details(cx);
7443 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7444 s.move_heads_with(|map, head, goal| {
7445 movement::down(map, head, goal, false, text_layout_details)
7446 })
7447 });
7448 }
7449
7450 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7451 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7452 context_menu.select_first(self.completion_provider.as_deref(), cx);
7453 }
7454 }
7455
7456 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7457 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7458 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7459 }
7460 }
7461
7462 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7463 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7464 context_menu.select_next(self.completion_provider.as_deref(), cx);
7465 }
7466 }
7467
7468 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7469 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7470 context_menu.select_last(self.completion_provider.as_deref(), cx);
7471 }
7472 }
7473
7474 pub fn move_to_previous_word_start(
7475 &mut self,
7476 _: &MoveToPreviousWordStart,
7477 cx: &mut ViewContext<Self>,
7478 ) {
7479 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7480 s.move_cursors_with(|map, head, _| {
7481 (
7482 movement::previous_word_start(map, head),
7483 SelectionGoal::None,
7484 )
7485 });
7486 })
7487 }
7488
7489 pub fn move_to_previous_subword_start(
7490 &mut self,
7491 _: &MoveToPreviousSubwordStart,
7492 cx: &mut ViewContext<Self>,
7493 ) {
7494 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7495 s.move_cursors_with(|map, head, _| {
7496 (
7497 movement::previous_subword_start(map, head),
7498 SelectionGoal::None,
7499 )
7500 });
7501 })
7502 }
7503
7504 pub fn select_to_previous_word_start(
7505 &mut self,
7506 _: &SelectToPreviousWordStart,
7507 cx: &mut ViewContext<Self>,
7508 ) {
7509 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7510 s.move_heads_with(|map, head, _| {
7511 (
7512 movement::previous_word_start(map, head),
7513 SelectionGoal::None,
7514 )
7515 });
7516 })
7517 }
7518
7519 pub fn select_to_previous_subword_start(
7520 &mut self,
7521 _: &SelectToPreviousSubwordStart,
7522 cx: &mut ViewContext<Self>,
7523 ) {
7524 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7525 s.move_heads_with(|map, head, _| {
7526 (
7527 movement::previous_subword_start(map, head),
7528 SelectionGoal::None,
7529 )
7530 });
7531 })
7532 }
7533
7534 pub fn delete_to_previous_word_start(
7535 &mut self,
7536 action: &DeleteToPreviousWordStart,
7537 cx: &mut ViewContext<Self>,
7538 ) {
7539 self.transact(cx, |this, cx| {
7540 this.select_autoclose_pair(cx);
7541 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7542 let line_mode = s.line_mode;
7543 s.move_with(|map, selection| {
7544 if selection.is_empty() && !line_mode {
7545 let cursor = if action.ignore_newlines {
7546 movement::previous_word_start(map, selection.head())
7547 } else {
7548 movement::previous_word_start_or_newline(map, selection.head())
7549 };
7550 selection.set_head(cursor, SelectionGoal::None);
7551 }
7552 });
7553 });
7554 this.insert("", cx);
7555 });
7556 }
7557
7558 pub fn delete_to_previous_subword_start(
7559 &mut self,
7560 _: &DeleteToPreviousSubwordStart,
7561 cx: &mut ViewContext<Self>,
7562 ) {
7563 self.transact(cx, |this, cx| {
7564 this.select_autoclose_pair(cx);
7565 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7566 let line_mode = s.line_mode;
7567 s.move_with(|map, selection| {
7568 if selection.is_empty() && !line_mode {
7569 let cursor = movement::previous_subword_start(map, selection.head());
7570 selection.set_head(cursor, SelectionGoal::None);
7571 }
7572 });
7573 });
7574 this.insert("", cx);
7575 });
7576 }
7577
7578 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7579 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7580 s.move_cursors_with(|map, head, _| {
7581 (movement::next_word_end(map, head), SelectionGoal::None)
7582 });
7583 })
7584 }
7585
7586 pub fn move_to_next_subword_end(
7587 &mut self,
7588 _: &MoveToNextSubwordEnd,
7589 cx: &mut ViewContext<Self>,
7590 ) {
7591 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7592 s.move_cursors_with(|map, head, _| {
7593 (movement::next_subword_end(map, head), SelectionGoal::None)
7594 });
7595 })
7596 }
7597
7598 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7599 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7600 s.move_heads_with(|map, head, _| {
7601 (movement::next_word_end(map, head), SelectionGoal::None)
7602 });
7603 })
7604 }
7605
7606 pub fn select_to_next_subword_end(
7607 &mut self,
7608 _: &SelectToNextSubwordEnd,
7609 cx: &mut ViewContext<Self>,
7610 ) {
7611 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7612 s.move_heads_with(|map, head, _| {
7613 (movement::next_subword_end(map, head), SelectionGoal::None)
7614 });
7615 })
7616 }
7617
7618 pub fn delete_to_next_word_end(
7619 &mut self,
7620 action: &DeleteToNextWordEnd,
7621 cx: &mut ViewContext<Self>,
7622 ) {
7623 self.transact(cx, |this, cx| {
7624 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7625 let line_mode = s.line_mode;
7626 s.move_with(|map, selection| {
7627 if selection.is_empty() && !line_mode {
7628 let cursor = if action.ignore_newlines {
7629 movement::next_word_end(map, selection.head())
7630 } else {
7631 movement::next_word_end_or_newline(map, selection.head())
7632 };
7633 selection.set_head(cursor, SelectionGoal::None);
7634 }
7635 });
7636 });
7637 this.insert("", cx);
7638 });
7639 }
7640
7641 pub fn delete_to_next_subword_end(
7642 &mut self,
7643 _: &DeleteToNextSubwordEnd,
7644 cx: &mut ViewContext<Self>,
7645 ) {
7646 self.transact(cx, |this, cx| {
7647 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7648 s.move_with(|map, selection| {
7649 if selection.is_empty() {
7650 let cursor = movement::next_subword_end(map, selection.head());
7651 selection.set_head(cursor, SelectionGoal::None);
7652 }
7653 });
7654 });
7655 this.insert("", cx);
7656 });
7657 }
7658
7659 pub fn move_to_beginning_of_line(
7660 &mut self,
7661 action: &MoveToBeginningOfLine,
7662 cx: &mut ViewContext<Self>,
7663 ) {
7664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7665 s.move_cursors_with(|map, head, _| {
7666 (
7667 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7668 SelectionGoal::None,
7669 )
7670 });
7671 })
7672 }
7673
7674 pub fn select_to_beginning_of_line(
7675 &mut self,
7676 action: &SelectToBeginningOfLine,
7677 cx: &mut ViewContext<Self>,
7678 ) {
7679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7680 s.move_heads_with(|map, head, _| {
7681 (
7682 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7683 SelectionGoal::None,
7684 )
7685 });
7686 });
7687 }
7688
7689 pub fn delete_to_beginning_of_line(
7690 &mut self,
7691 _: &DeleteToBeginningOfLine,
7692 cx: &mut ViewContext<Self>,
7693 ) {
7694 self.transact(cx, |this, cx| {
7695 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7696 s.move_with(|_, selection| {
7697 selection.reversed = true;
7698 });
7699 });
7700
7701 this.select_to_beginning_of_line(
7702 &SelectToBeginningOfLine {
7703 stop_at_soft_wraps: false,
7704 },
7705 cx,
7706 );
7707 this.backspace(&Backspace, cx);
7708 });
7709 }
7710
7711 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7712 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7713 s.move_cursors_with(|map, head, _| {
7714 (
7715 movement::line_end(map, head, action.stop_at_soft_wraps),
7716 SelectionGoal::None,
7717 )
7718 });
7719 })
7720 }
7721
7722 pub fn select_to_end_of_line(
7723 &mut self,
7724 action: &SelectToEndOfLine,
7725 cx: &mut ViewContext<Self>,
7726 ) {
7727 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7728 s.move_heads_with(|map, head, _| {
7729 (
7730 movement::line_end(map, head, action.stop_at_soft_wraps),
7731 SelectionGoal::None,
7732 )
7733 });
7734 })
7735 }
7736
7737 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7738 self.transact(cx, |this, cx| {
7739 this.select_to_end_of_line(
7740 &SelectToEndOfLine {
7741 stop_at_soft_wraps: false,
7742 },
7743 cx,
7744 );
7745 this.delete(&Delete, cx);
7746 });
7747 }
7748
7749 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7750 self.transact(cx, |this, cx| {
7751 this.select_to_end_of_line(
7752 &SelectToEndOfLine {
7753 stop_at_soft_wraps: false,
7754 },
7755 cx,
7756 );
7757 this.cut(&Cut, cx);
7758 });
7759 }
7760
7761 pub fn move_to_start_of_paragraph(
7762 &mut self,
7763 _: &MoveToStartOfParagraph,
7764 cx: &mut ViewContext<Self>,
7765 ) {
7766 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7767 cx.propagate();
7768 return;
7769 }
7770
7771 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7772 s.move_with(|map, selection| {
7773 selection.collapse_to(
7774 movement::start_of_paragraph(map, selection.head(), 1),
7775 SelectionGoal::None,
7776 )
7777 });
7778 })
7779 }
7780
7781 pub fn move_to_end_of_paragraph(
7782 &mut self,
7783 _: &MoveToEndOfParagraph,
7784 cx: &mut ViewContext<Self>,
7785 ) {
7786 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7787 cx.propagate();
7788 return;
7789 }
7790
7791 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7792 s.move_with(|map, selection| {
7793 selection.collapse_to(
7794 movement::end_of_paragraph(map, selection.head(), 1),
7795 SelectionGoal::None,
7796 )
7797 });
7798 })
7799 }
7800
7801 pub fn select_to_start_of_paragraph(
7802 &mut self,
7803 _: &SelectToStartOfParagraph,
7804 cx: &mut ViewContext<Self>,
7805 ) {
7806 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7807 cx.propagate();
7808 return;
7809 }
7810
7811 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7812 s.move_heads_with(|map, head, _| {
7813 (
7814 movement::start_of_paragraph(map, head, 1),
7815 SelectionGoal::None,
7816 )
7817 });
7818 })
7819 }
7820
7821 pub fn select_to_end_of_paragraph(
7822 &mut self,
7823 _: &SelectToEndOfParagraph,
7824 cx: &mut ViewContext<Self>,
7825 ) {
7826 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7827 cx.propagate();
7828 return;
7829 }
7830
7831 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7832 s.move_heads_with(|map, head, _| {
7833 (
7834 movement::end_of_paragraph(map, head, 1),
7835 SelectionGoal::None,
7836 )
7837 });
7838 })
7839 }
7840
7841 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7842 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7843 cx.propagate();
7844 return;
7845 }
7846
7847 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7848 s.select_ranges(vec![0..0]);
7849 });
7850 }
7851
7852 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7853 let mut selection = self.selections.last::<Point>(cx);
7854 selection.set_head(Point::zero(), SelectionGoal::None);
7855
7856 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7857 s.select(vec![selection]);
7858 });
7859 }
7860
7861 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7862 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7863 cx.propagate();
7864 return;
7865 }
7866
7867 let cursor = self.buffer.read(cx).read(cx).len();
7868 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7869 s.select_ranges(vec![cursor..cursor])
7870 });
7871 }
7872
7873 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7874 self.nav_history = nav_history;
7875 }
7876
7877 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7878 self.nav_history.as_ref()
7879 }
7880
7881 fn push_to_nav_history(
7882 &mut self,
7883 cursor_anchor: Anchor,
7884 new_position: Option<Point>,
7885 cx: &mut ViewContext<Self>,
7886 ) {
7887 if let Some(nav_history) = self.nav_history.as_mut() {
7888 let buffer = self.buffer.read(cx).read(cx);
7889 let cursor_position = cursor_anchor.to_point(&buffer);
7890 let scroll_state = self.scroll_manager.anchor();
7891 let scroll_top_row = scroll_state.top_row(&buffer);
7892 drop(buffer);
7893
7894 if let Some(new_position) = new_position {
7895 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7896 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7897 return;
7898 }
7899 }
7900
7901 nav_history.push(
7902 Some(NavigationData {
7903 cursor_anchor,
7904 cursor_position,
7905 scroll_anchor: scroll_state,
7906 scroll_top_row,
7907 }),
7908 cx,
7909 );
7910 }
7911 }
7912
7913 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7914 let buffer = self.buffer.read(cx).snapshot(cx);
7915 let mut selection = self.selections.first::<usize>(cx);
7916 selection.set_head(buffer.len(), SelectionGoal::None);
7917 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7918 s.select(vec![selection]);
7919 });
7920 }
7921
7922 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7923 let end = self.buffer.read(cx).read(cx).len();
7924 self.change_selections(None, cx, |s| {
7925 s.select_ranges(vec![0..end]);
7926 });
7927 }
7928
7929 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7930 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7931 let mut selections = self.selections.all::<Point>(cx);
7932 let max_point = display_map.buffer_snapshot.max_point();
7933 for selection in &mut selections {
7934 let rows = selection.spanned_rows(true, &display_map);
7935 selection.start = Point::new(rows.start.0, 0);
7936 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7937 selection.reversed = false;
7938 }
7939 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7940 s.select(selections);
7941 });
7942 }
7943
7944 pub fn split_selection_into_lines(
7945 &mut self,
7946 _: &SplitSelectionIntoLines,
7947 cx: &mut ViewContext<Self>,
7948 ) {
7949 let mut to_unfold = Vec::new();
7950 let mut new_selection_ranges = Vec::new();
7951 {
7952 let selections = self.selections.all::<Point>(cx);
7953 let buffer = self.buffer.read(cx).read(cx);
7954 for selection in selections {
7955 for row in selection.start.row..selection.end.row {
7956 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7957 new_selection_ranges.push(cursor..cursor);
7958 }
7959 new_selection_ranges.push(selection.end..selection.end);
7960 to_unfold.push(selection.start..selection.end);
7961 }
7962 }
7963 self.unfold_ranges(&to_unfold, true, true, cx);
7964 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7965 s.select_ranges(new_selection_ranges);
7966 });
7967 }
7968
7969 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7970 self.add_selection(true, cx);
7971 }
7972
7973 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7974 self.add_selection(false, cx);
7975 }
7976
7977 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7978 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7979 let mut selections = self.selections.all::<Point>(cx);
7980 let text_layout_details = self.text_layout_details(cx);
7981 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7982 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7983 let range = oldest_selection.display_range(&display_map).sorted();
7984
7985 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7986 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7987 let positions = start_x.min(end_x)..start_x.max(end_x);
7988
7989 selections.clear();
7990 let mut stack = Vec::new();
7991 for row in range.start.row().0..=range.end.row().0 {
7992 if let Some(selection) = self.selections.build_columnar_selection(
7993 &display_map,
7994 DisplayRow(row),
7995 &positions,
7996 oldest_selection.reversed,
7997 &text_layout_details,
7998 ) {
7999 stack.push(selection.id);
8000 selections.push(selection);
8001 }
8002 }
8003
8004 if above {
8005 stack.reverse();
8006 }
8007
8008 AddSelectionsState { above, stack }
8009 });
8010
8011 let last_added_selection = *state.stack.last().unwrap();
8012 let mut new_selections = Vec::new();
8013 if above == state.above {
8014 let end_row = if above {
8015 DisplayRow(0)
8016 } else {
8017 display_map.max_point().row()
8018 };
8019
8020 'outer: for selection in selections {
8021 if selection.id == last_added_selection {
8022 let range = selection.display_range(&display_map).sorted();
8023 debug_assert_eq!(range.start.row(), range.end.row());
8024 let mut row = range.start.row();
8025 let positions =
8026 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8027 px(start)..px(end)
8028 } else {
8029 let start_x =
8030 display_map.x_for_display_point(range.start, &text_layout_details);
8031 let end_x =
8032 display_map.x_for_display_point(range.end, &text_layout_details);
8033 start_x.min(end_x)..start_x.max(end_x)
8034 };
8035
8036 while row != end_row {
8037 if above {
8038 row.0 -= 1;
8039 } else {
8040 row.0 += 1;
8041 }
8042
8043 if let Some(new_selection) = self.selections.build_columnar_selection(
8044 &display_map,
8045 row,
8046 &positions,
8047 selection.reversed,
8048 &text_layout_details,
8049 ) {
8050 state.stack.push(new_selection.id);
8051 if above {
8052 new_selections.push(new_selection);
8053 new_selections.push(selection);
8054 } else {
8055 new_selections.push(selection);
8056 new_selections.push(new_selection);
8057 }
8058
8059 continue 'outer;
8060 }
8061 }
8062 }
8063
8064 new_selections.push(selection);
8065 }
8066 } else {
8067 new_selections = selections;
8068 new_selections.retain(|s| s.id != last_added_selection);
8069 state.stack.pop();
8070 }
8071
8072 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8073 s.select(new_selections);
8074 });
8075 if state.stack.len() > 1 {
8076 self.add_selections_state = Some(state);
8077 }
8078 }
8079
8080 pub fn select_next_match_internal(
8081 &mut self,
8082 display_map: &DisplaySnapshot,
8083 replace_newest: bool,
8084 autoscroll: Option<Autoscroll>,
8085 cx: &mut ViewContext<Self>,
8086 ) -> Result<()> {
8087 fn select_next_match_ranges(
8088 this: &mut Editor,
8089 range: Range<usize>,
8090 replace_newest: bool,
8091 auto_scroll: Option<Autoscroll>,
8092 cx: &mut ViewContext<Editor>,
8093 ) {
8094 this.unfold_ranges(&[range.clone()], false, true, cx);
8095 this.change_selections(auto_scroll, cx, |s| {
8096 if replace_newest {
8097 s.delete(s.newest_anchor().id);
8098 }
8099 s.insert_range(range.clone());
8100 });
8101 }
8102
8103 let buffer = &display_map.buffer_snapshot;
8104 let mut selections = self.selections.all::<usize>(cx);
8105 if let Some(mut select_next_state) = self.select_next_state.take() {
8106 let query = &select_next_state.query;
8107 if !select_next_state.done {
8108 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8109 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8110 let mut next_selected_range = None;
8111
8112 let bytes_after_last_selection =
8113 buffer.bytes_in_range(last_selection.end..buffer.len());
8114 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8115 let query_matches = query
8116 .stream_find_iter(bytes_after_last_selection)
8117 .map(|result| (last_selection.end, result))
8118 .chain(
8119 query
8120 .stream_find_iter(bytes_before_first_selection)
8121 .map(|result| (0, result)),
8122 );
8123
8124 for (start_offset, query_match) in query_matches {
8125 let query_match = query_match.unwrap(); // can only fail due to I/O
8126 let offset_range =
8127 start_offset + query_match.start()..start_offset + query_match.end();
8128 let display_range = offset_range.start.to_display_point(display_map)
8129 ..offset_range.end.to_display_point(display_map);
8130
8131 if !select_next_state.wordwise
8132 || (!movement::is_inside_word(display_map, display_range.start)
8133 && !movement::is_inside_word(display_map, display_range.end))
8134 {
8135 // TODO: This is n^2, because we might check all the selections
8136 if !selections
8137 .iter()
8138 .any(|selection| selection.range().overlaps(&offset_range))
8139 {
8140 next_selected_range = Some(offset_range);
8141 break;
8142 }
8143 }
8144 }
8145
8146 if let Some(next_selected_range) = next_selected_range {
8147 select_next_match_ranges(
8148 self,
8149 next_selected_range,
8150 replace_newest,
8151 autoscroll,
8152 cx,
8153 );
8154 } else {
8155 select_next_state.done = true;
8156 }
8157 }
8158
8159 self.select_next_state = Some(select_next_state);
8160 } else {
8161 let mut only_carets = true;
8162 let mut same_text_selected = true;
8163 let mut selected_text = None;
8164
8165 let mut selections_iter = selections.iter().peekable();
8166 while let Some(selection) = selections_iter.next() {
8167 if selection.start != selection.end {
8168 only_carets = false;
8169 }
8170
8171 if same_text_selected {
8172 if selected_text.is_none() {
8173 selected_text =
8174 Some(buffer.text_for_range(selection.range()).collect::<String>());
8175 }
8176
8177 if let Some(next_selection) = selections_iter.peek() {
8178 if next_selection.range().len() == selection.range().len() {
8179 let next_selected_text = buffer
8180 .text_for_range(next_selection.range())
8181 .collect::<String>();
8182 if Some(next_selected_text) != selected_text {
8183 same_text_selected = false;
8184 selected_text = None;
8185 }
8186 } else {
8187 same_text_selected = false;
8188 selected_text = None;
8189 }
8190 }
8191 }
8192 }
8193
8194 if only_carets {
8195 for selection in &mut selections {
8196 let word_range = movement::surrounding_word(
8197 display_map,
8198 selection.start.to_display_point(display_map),
8199 );
8200 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8201 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8202 selection.goal = SelectionGoal::None;
8203 selection.reversed = false;
8204 select_next_match_ranges(
8205 self,
8206 selection.start..selection.end,
8207 replace_newest,
8208 autoscroll,
8209 cx,
8210 );
8211 }
8212
8213 if selections.len() == 1 {
8214 let selection = selections
8215 .last()
8216 .expect("ensured that there's only one selection");
8217 let query = buffer
8218 .text_for_range(selection.start..selection.end)
8219 .collect::<String>();
8220 let is_empty = query.is_empty();
8221 let select_state = SelectNextState {
8222 query: AhoCorasick::new(&[query])?,
8223 wordwise: true,
8224 done: is_empty,
8225 };
8226 self.select_next_state = Some(select_state);
8227 } else {
8228 self.select_next_state = None;
8229 }
8230 } else if let Some(selected_text) = selected_text {
8231 self.select_next_state = Some(SelectNextState {
8232 query: AhoCorasick::new(&[selected_text])?,
8233 wordwise: false,
8234 done: false,
8235 });
8236 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8237 }
8238 }
8239 Ok(())
8240 }
8241
8242 pub fn select_all_matches(
8243 &mut self,
8244 _action: &SelectAllMatches,
8245 cx: &mut ViewContext<Self>,
8246 ) -> Result<()> {
8247 self.push_to_selection_history();
8248 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8249
8250 self.select_next_match_internal(&display_map, false, None, cx)?;
8251 let Some(select_next_state) = self.select_next_state.as_mut() else {
8252 return Ok(());
8253 };
8254 if select_next_state.done {
8255 return Ok(());
8256 }
8257
8258 let mut new_selections = self.selections.all::<usize>(cx);
8259
8260 let buffer = &display_map.buffer_snapshot;
8261 let query_matches = select_next_state
8262 .query
8263 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8264
8265 for query_match in query_matches {
8266 let query_match = query_match.unwrap(); // can only fail due to I/O
8267 let offset_range = query_match.start()..query_match.end();
8268 let display_range = offset_range.start.to_display_point(&display_map)
8269 ..offset_range.end.to_display_point(&display_map);
8270
8271 if !select_next_state.wordwise
8272 || (!movement::is_inside_word(&display_map, display_range.start)
8273 && !movement::is_inside_word(&display_map, display_range.end))
8274 {
8275 self.selections.change_with(cx, |selections| {
8276 new_selections.push(Selection {
8277 id: selections.new_selection_id(),
8278 start: offset_range.start,
8279 end: offset_range.end,
8280 reversed: false,
8281 goal: SelectionGoal::None,
8282 });
8283 });
8284 }
8285 }
8286
8287 new_selections.sort_by_key(|selection| selection.start);
8288 let mut ix = 0;
8289 while ix + 1 < new_selections.len() {
8290 let current_selection = &new_selections[ix];
8291 let next_selection = &new_selections[ix + 1];
8292 if current_selection.range().overlaps(&next_selection.range()) {
8293 if current_selection.id < next_selection.id {
8294 new_selections.remove(ix + 1);
8295 } else {
8296 new_selections.remove(ix);
8297 }
8298 } else {
8299 ix += 1;
8300 }
8301 }
8302
8303 select_next_state.done = true;
8304 self.unfold_ranges(
8305 &new_selections
8306 .iter()
8307 .map(|selection| selection.range())
8308 .collect::<Vec<_>>(),
8309 false,
8310 false,
8311 cx,
8312 );
8313 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8314 selections.select(new_selections)
8315 });
8316
8317 Ok(())
8318 }
8319
8320 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8321 self.push_to_selection_history();
8322 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8323 self.select_next_match_internal(
8324 &display_map,
8325 action.replace_newest,
8326 Some(Autoscroll::newest()),
8327 cx,
8328 )?;
8329 Ok(())
8330 }
8331
8332 pub fn select_previous(
8333 &mut self,
8334 action: &SelectPrevious,
8335 cx: &mut ViewContext<Self>,
8336 ) -> Result<()> {
8337 self.push_to_selection_history();
8338 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8339 let buffer = &display_map.buffer_snapshot;
8340 let mut selections = self.selections.all::<usize>(cx);
8341 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8342 let query = &select_prev_state.query;
8343 if !select_prev_state.done {
8344 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8345 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8346 let mut next_selected_range = None;
8347 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8348 let bytes_before_last_selection =
8349 buffer.reversed_bytes_in_range(0..last_selection.start);
8350 let bytes_after_first_selection =
8351 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8352 let query_matches = query
8353 .stream_find_iter(bytes_before_last_selection)
8354 .map(|result| (last_selection.start, result))
8355 .chain(
8356 query
8357 .stream_find_iter(bytes_after_first_selection)
8358 .map(|result| (buffer.len(), result)),
8359 );
8360 for (end_offset, query_match) in query_matches {
8361 let query_match = query_match.unwrap(); // can only fail due to I/O
8362 let offset_range =
8363 end_offset - query_match.end()..end_offset - query_match.start();
8364 let display_range = offset_range.start.to_display_point(&display_map)
8365 ..offset_range.end.to_display_point(&display_map);
8366
8367 if !select_prev_state.wordwise
8368 || (!movement::is_inside_word(&display_map, display_range.start)
8369 && !movement::is_inside_word(&display_map, display_range.end))
8370 {
8371 next_selected_range = Some(offset_range);
8372 break;
8373 }
8374 }
8375
8376 if let Some(next_selected_range) = next_selected_range {
8377 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8378 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8379 if action.replace_newest {
8380 s.delete(s.newest_anchor().id);
8381 }
8382 s.insert_range(next_selected_range);
8383 });
8384 } else {
8385 select_prev_state.done = true;
8386 }
8387 }
8388
8389 self.select_prev_state = Some(select_prev_state);
8390 } else {
8391 let mut only_carets = true;
8392 let mut same_text_selected = true;
8393 let mut selected_text = None;
8394
8395 let mut selections_iter = selections.iter().peekable();
8396 while let Some(selection) = selections_iter.next() {
8397 if selection.start != selection.end {
8398 only_carets = false;
8399 }
8400
8401 if same_text_selected {
8402 if selected_text.is_none() {
8403 selected_text =
8404 Some(buffer.text_for_range(selection.range()).collect::<String>());
8405 }
8406
8407 if let Some(next_selection) = selections_iter.peek() {
8408 if next_selection.range().len() == selection.range().len() {
8409 let next_selected_text = buffer
8410 .text_for_range(next_selection.range())
8411 .collect::<String>();
8412 if Some(next_selected_text) != selected_text {
8413 same_text_selected = false;
8414 selected_text = None;
8415 }
8416 } else {
8417 same_text_selected = false;
8418 selected_text = None;
8419 }
8420 }
8421 }
8422 }
8423
8424 if only_carets {
8425 for selection in &mut selections {
8426 let word_range = movement::surrounding_word(
8427 &display_map,
8428 selection.start.to_display_point(&display_map),
8429 );
8430 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8431 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8432 selection.goal = SelectionGoal::None;
8433 selection.reversed = false;
8434 }
8435 if selections.len() == 1 {
8436 let selection = selections
8437 .last()
8438 .expect("ensured that there's only one selection");
8439 let query = buffer
8440 .text_for_range(selection.start..selection.end)
8441 .collect::<String>();
8442 let is_empty = query.is_empty();
8443 let select_state = SelectNextState {
8444 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8445 wordwise: true,
8446 done: is_empty,
8447 };
8448 self.select_prev_state = Some(select_state);
8449 } else {
8450 self.select_prev_state = None;
8451 }
8452
8453 self.unfold_ranges(
8454 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8455 false,
8456 true,
8457 cx,
8458 );
8459 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8460 s.select(selections);
8461 });
8462 } else if let Some(selected_text) = selected_text {
8463 self.select_prev_state = Some(SelectNextState {
8464 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8465 wordwise: false,
8466 done: false,
8467 });
8468 self.select_previous(action, cx)?;
8469 }
8470 }
8471 Ok(())
8472 }
8473
8474 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8475 if self.read_only(cx) {
8476 return;
8477 }
8478 let text_layout_details = &self.text_layout_details(cx);
8479 self.transact(cx, |this, cx| {
8480 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8481 let mut edits = Vec::new();
8482 let mut selection_edit_ranges = Vec::new();
8483 let mut last_toggled_row = None;
8484 let snapshot = this.buffer.read(cx).read(cx);
8485 let empty_str: Arc<str> = Arc::default();
8486 let mut suffixes_inserted = Vec::new();
8487 let ignore_indent = action.ignore_indent;
8488
8489 fn comment_prefix_range(
8490 snapshot: &MultiBufferSnapshot,
8491 row: MultiBufferRow,
8492 comment_prefix: &str,
8493 comment_prefix_whitespace: &str,
8494 ignore_indent: bool,
8495 ) -> Range<Point> {
8496 let indent_size = if ignore_indent {
8497 0
8498 } else {
8499 snapshot.indent_size_for_line(row).len
8500 };
8501
8502 let start = Point::new(row.0, indent_size);
8503
8504 let mut line_bytes = snapshot
8505 .bytes_in_range(start..snapshot.max_point())
8506 .flatten()
8507 .copied();
8508
8509 // If this line currently begins with the line comment prefix, then record
8510 // the range containing the prefix.
8511 if line_bytes
8512 .by_ref()
8513 .take(comment_prefix.len())
8514 .eq(comment_prefix.bytes())
8515 {
8516 // Include any whitespace that matches the comment prefix.
8517 let matching_whitespace_len = line_bytes
8518 .zip(comment_prefix_whitespace.bytes())
8519 .take_while(|(a, b)| a == b)
8520 .count() as u32;
8521 let end = Point::new(
8522 start.row,
8523 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8524 );
8525 start..end
8526 } else {
8527 start..start
8528 }
8529 }
8530
8531 fn comment_suffix_range(
8532 snapshot: &MultiBufferSnapshot,
8533 row: MultiBufferRow,
8534 comment_suffix: &str,
8535 comment_suffix_has_leading_space: bool,
8536 ) -> Range<Point> {
8537 let end = Point::new(row.0, snapshot.line_len(row));
8538 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8539
8540 let mut line_end_bytes = snapshot
8541 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8542 .flatten()
8543 .copied();
8544
8545 let leading_space_len = if suffix_start_column > 0
8546 && line_end_bytes.next() == Some(b' ')
8547 && comment_suffix_has_leading_space
8548 {
8549 1
8550 } else {
8551 0
8552 };
8553
8554 // If this line currently begins with the line comment prefix, then record
8555 // the range containing the prefix.
8556 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8557 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8558 start..end
8559 } else {
8560 end..end
8561 }
8562 }
8563
8564 // TODO: Handle selections that cross excerpts
8565 for selection in &mut selections {
8566 let start_column = snapshot
8567 .indent_size_for_line(MultiBufferRow(selection.start.row))
8568 .len;
8569 let language = if let Some(language) =
8570 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8571 {
8572 language
8573 } else {
8574 continue;
8575 };
8576
8577 selection_edit_ranges.clear();
8578
8579 // If multiple selections contain a given row, avoid processing that
8580 // row more than once.
8581 let mut start_row = MultiBufferRow(selection.start.row);
8582 if last_toggled_row == Some(start_row) {
8583 start_row = start_row.next_row();
8584 }
8585 let end_row =
8586 if selection.end.row > selection.start.row && selection.end.column == 0 {
8587 MultiBufferRow(selection.end.row - 1)
8588 } else {
8589 MultiBufferRow(selection.end.row)
8590 };
8591 last_toggled_row = Some(end_row);
8592
8593 if start_row > end_row {
8594 continue;
8595 }
8596
8597 // If the language has line comments, toggle those.
8598 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8599
8600 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8601 if ignore_indent {
8602 full_comment_prefixes = full_comment_prefixes
8603 .into_iter()
8604 .map(|s| Arc::from(s.trim_end()))
8605 .collect();
8606 }
8607
8608 if !full_comment_prefixes.is_empty() {
8609 let first_prefix = full_comment_prefixes
8610 .first()
8611 .expect("prefixes is non-empty");
8612 let prefix_trimmed_lengths = full_comment_prefixes
8613 .iter()
8614 .map(|p| p.trim_end_matches(' ').len())
8615 .collect::<SmallVec<[usize; 4]>>();
8616
8617 let mut all_selection_lines_are_comments = true;
8618
8619 for row in start_row.0..=end_row.0 {
8620 let row = MultiBufferRow(row);
8621 if start_row < end_row && snapshot.is_line_blank(row) {
8622 continue;
8623 }
8624
8625 let prefix_range = full_comment_prefixes
8626 .iter()
8627 .zip(prefix_trimmed_lengths.iter().copied())
8628 .map(|(prefix, trimmed_prefix_len)| {
8629 comment_prefix_range(
8630 snapshot.deref(),
8631 row,
8632 &prefix[..trimmed_prefix_len],
8633 &prefix[trimmed_prefix_len..],
8634 ignore_indent,
8635 )
8636 })
8637 .max_by_key(|range| range.end.column - range.start.column)
8638 .expect("prefixes is non-empty");
8639
8640 if prefix_range.is_empty() {
8641 all_selection_lines_are_comments = false;
8642 }
8643
8644 selection_edit_ranges.push(prefix_range);
8645 }
8646
8647 if all_selection_lines_are_comments {
8648 edits.extend(
8649 selection_edit_ranges
8650 .iter()
8651 .cloned()
8652 .map(|range| (range, empty_str.clone())),
8653 );
8654 } else {
8655 let min_column = selection_edit_ranges
8656 .iter()
8657 .map(|range| range.start.column)
8658 .min()
8659 .unwrap_or(0);
8660 edits.extend(selection_edit_ranges.iter().map(|range| {
8661 let position = Point::new(range.start.row, min_column);
8662 (position..position, first_prefix.clone())
8663 }));
8664 }
8665 } else if let Some((full_comment_prefix, comment_suffix)) =
8666 language.block_comment_delimiters()
8667 {
8668 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8669 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8670 let prefix_range = comment_prefix_range(
8671 snapshot.deref(),
8672 start_row,
8673 comment_prefix,
8674 comment_prefix_whitespace,
8675 ignore_indent,
8676 );
8677 let suffix_range = comment_suffix_range(
8678 snapshot.deref(),
8679 end_row,
8680 comment_suffix.trim_start_matches(' '),
8681 comment_suffix.starts_with(' '),
8682 );
8683
8684 if prefix_range.is_empty() || suffix_range.is_empty() {
8685 edits.push((
8686 prefix_range.start..prefix_range.start,
8687 full_comment_prefix.clone(),
8688 ));
8689 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8690 suffixes_inserted.push((end_row, comment_suffix.len()));
8691 } else {
8692 edits.push((prefix_range, empty_str.clone()));
8693 edits.push((suffix_range, empty_str.clone()));
8694 }
8695 } else {
8696 continue;
8697 }
8698 }
8699
8700 drop(snapshot);
8701 this.buffer.update(cx, |buffer, cx| {
8702 buffer.edit(edits, None, cx);
8703 });
8704
8705 // Adjust selections so that they end before any comment suffixes that
8706 // were inserted.
8707 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8708 let mut selections = this.selections.all::<Point>(cx);
8709 let snapshot = this.buffer.read(cx).read(cx);
8710 for selection in &mut selections {
8711 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8712 match row.cmp(&MultiBufferRow(selection.end.row)) {
8713 Ordering::Less => {
8714 suffixes_inserted.next();
8715 continue;
8716 }
8717 Ordering::Greater => break,
8718 Ordering::Equal => {
8719 if selection.end.column == snapshot.line_len(row) {
8720 if selection.is_empty() {
8721 selection.start.column -= suffix_len as u32;
8722 }
8723 selection.end.column -= suffix_len as u32;
8724 }
8725 break;
8726 }
8727 }
8728 }
8729 }
8730
8731 drop(snapshot);
8732 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8733
8734 let selections = this.selections.all::<Point>(cx);
8735 let selections_on_single_row = selections.windows(2).all(|selections| {
8736 selections[0].start.row == selections[1].start.row
8737 && selections[0].end.row == selections[1].end.row
8738 && selections[0].start.row == selections[0].end.row
8739 });
8740 let selections_selecting = selections
8741 .iter()
8742 .any(|selection| selection.start != selection.end);
8743 let advance_downwards = action.advance_downwards
8744 && selections_on_single_row
8745 && !selections_selecting
8746 && !matches!(this.mode, EditorMode::SingleLine { .. });
8747
8748 if advance_downwards {
8749 let snapshot = this.buffer.read(cx).snapshot(cx);
8750
8751 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8752 s.move_cursors_with(|display_snapshot, display_point, _| {
8753 let mut point = display_point.to_point(display_snapshot);
8754 point.row += 1;
8755 point = snapshot.clip_point(point, Bias::Left);
8756 let display_point = point.to_display_point(display_snapshot);
8757 let goal = SelectionGoal::HorizontalPosition(
8758 display_snapshot
8759 .x_for_display_point(display_point, text_layout_details)
8760 .into(),
8761 );
8762 (display_point, goal)
8763 })
8764 });
8765 }
8766 });
8767 }
8768
8769 pub fn select_enclosing_symbol(
8770 &mut self,
8771 _: &SelectEnclosingSymbol,
8772 cx: &mut ViewContext<Self>,
8773 ) {
8774 let buffer = self.buffer.read(cx).snapshot(cx);
8775 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8776
8777 fn update_selection(
8778 selection: &Selection<usize>,
8779 buffer_snap: &MultiBufferSnapshot,
8780 ) -> Option<Selection<usize>> {
8781 let cursor = selection.head();
8782 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8783 for symbol in symbols.iter().rev() {
8784 let start = symbol.range.start.to_offset(buffer_snap);
8785 let end = symbol.range.end.to_offset(buffer_snap);
8786 let new_range = start..end;
8787 if start < selection.start || end > selection.end {
8788 return Some(Selection {
8789 id: selection.id,
8790 start: new_range.start,
8791 end: new_range.end,
8792 goal: SelectionGoal::None,
8793 reversed: selection.reversed,
8794 });
8795 }
8796 }
8797 None
8798 }
8799
8800 let mut selected_larger_symbol = false;
8801 let new_selections = old_selections
8802 .iter()
8803 .map(|selection| match update_selection(selection, &buffer) {
8804 Some(new_selection) => {
8805 if new_selection.range() != selection.range() {
8806 selected_larger_symbol = true;
8807 }
8808 new_selection
8809 }
8810 None => selection.clone(),
8811 })
8812 .collect::<Vec<_>>();
8813
8814 if selected_larger_symbol {
8815 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8816 s.select(new_selections);
8817 });
8818 }
8819 }
8820
8821 pub fn select_larger_syntax_node(
8822 &mut self,
8823 _: &SelectLargerSyntaxNode,
8824 cx: &mut ViewContext<Self>,
8825 ) {
8826 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8827 let buffer = self.buffer.read(cx).snapshot(cx);
8828 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8829
8830 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8831 let mut selected_larger_node = false;
8832 let new_selections = old_selections
8833 .iter()
8834 .map(|selection| {
8835 let old_range = selection.start..selection.end;
8836 let mut new_range = old_range.clone();
8837 let mut new_node = None;
8838 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8839 {
8840 new_node = Some(node);
8841 new_range = containing_range;
8842 if !display_map.intersects_fold(new_range.start)
8843 && !display_map.intersects_fold(new_range.end)
8844 {
8845 break;
8846 }
8847 }
8848
8849 if let Some(node) = new_node {
8850 // Log the ancestor, to support using this action as a way to explore TreeSitter
8851 // nodes. Parent and grandparent are also logged because this operation will not
8852 // visit nodes that have the same range as their parent.
8853 log::info!("Node: {node:?}");
8854 let parent = node.parent();
8855 log::info!("Parent: {parent:?}");
8856 let grandparent = parent.and_then(|x| x.parent());
8857 log::info!("Grandparent: {grandparent:?}");
8858 }
8859
8860 selected_larger_node |= new_range != old_range;
8861 Selection {
8862 id: selection.id,
8863 start: new_range.start,
8864 end: new_range.end,
8865 goal: SelectionGoal::None,
8866 reversed: selection.reversed,
8867 }
8868 })
8869 .collect::<Vec<_>>();
8870
8871 if selected_larger_node {
8872 stack.push(old_selections);
8873 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8874 s.select(new_selections);
8875 });
8876 }
8877 self.select_larger_syntax_node_stack = stack;
8878 }
8879
8880 pub fn select_smaller_syntax_node(
8881 &mut self,
8882 _: &SelectSmallerSyntaxNode,
8883 cx: &mut ViewContext<Self>,
8884 ) {
8885 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8886 if let Some(selections) = stack.pop() {
8887 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8888 s.select(selections.to_vec());
8889 });
8890 }
8891 self.select_larger_syntax_node_stack = stack;
8892 }
8893
8894 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8895 if !EditorSettings::get_global(cx).gutter.runnables {
8896 self.clear_tasks();
8897 return Task::ready(());
8898 }
8899 let project = self.project.as_ref().map(Model::downgrade);
8900 cx.spawn(|this, mut cx| async move {
8901 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8902 let Some(project) = project.and_then(|p| p.upgrade()) else {
8903 return;
8904 };
8905 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8906 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8907 }) else {
8908 return;
8909 };
8910
8911 let hide_runnables = project
8912 .update(&mut cx, |project, cx| {
8913 // Do not display any test indicators in non-dev server remote projects.
8914 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8915 })
8916 .unwrap_or(true);
8917 if hide_runnables {
8918 return;
8919 }
8920 let new_rows =
8921 cx.background_executor()
8922 .spawn({
8923 let snapshot = display_snapshot.clone();
8924 async move {
8925 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8926 }
8927 })
8928 .await;
8929 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8930
8931 this.update(&mut cx, |this, _| {
8932 this.clear_tasks();
8933 for (key, value) in rows {
8934 this.insert_tasks(key, value);
8935 }
8936 })
8937 .ok();
8938 })
8939 }
8940 fn fetch_runnable_ranges(
8941 snapshot: &DisplaySnapshot,
8942 range: Range<Anchor>,
8943 ) -> Vec<language::RunnableRange> {
8944 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8945 }
8946
8947 fn runnable_rows(
8948 project: Model<Project>,
8949 snapshot: DisplaySnapshot,
8950 runnable_ranges: Vec<RunnableRange>,
8951 mut cx: AsyncWindowContext,
8952 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8953 runnable_ranges
8954 .into_iter()
8955 .filter_map(|mut runnable| {
8956 let tasks = cx
8957 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8958 .ok()?;
8959 if tasks.is_empty() {
8960 return None;
8961 }
8962
8963 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8964
8965 let row = snapshot
8966 .buffer_snapshot
8967 .buffer_line_for_row(MultiBufferRow(point.row))?
8968 .1
8969 .start
8970 .row;
8971
8972 let context_range =
8973 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8974 Some((
8975 (runnable.buffer_id, row),
8976 RunnableTasks {
8977 templates: tasks,
8978 offset: MultiBufferOffset(runnable.run_range.start),
8979 context_range,
8980 column: point.column,
8981 extra_variables: runnable.extra_captures,
8982 },
8983 ))
8984 })
8985 .collect()
8986 }
8987
8988 fn templates_with_tags(
8989 project: &Model<Project>,
8990 runnable: &mut Runnable,
8991 cx: &WindowContext,
8992 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8993 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8994 let (worktree_id, file) = project
8995 .buffer_for_id(runnable.buffer, cx)
8996 .and_then(|buffer| buffer.read(cx).file())
8997 .map(|file| (file.worktree_id(cx), file.clone()))
8998 .unzip();
8999
9000 (
9001 project.task_store().read(cx).task_inventory().cloned(),
9002 worktree_id,
9003 file,
9004 )
9005 });
9006
9007 let tags = mem::take(&mut runnable.tags);
9008 let mut tags: Vec<_> = tags
9009 .into_iter()
9010 .flat_map(|tag| {
9011 let tag = tag.0.clone();
9012 inventory
9013 .as_ref()
9014 .into_iter()
9015 .flat_map(|inventory| {
9016 inventory.read(cx).list_tasks(
9017 file.clone(),
9018 Some(runnable.language.clone()),
9019 worktree_id,
9020 cx,
9021 )
9022 })
9023 .filter(move |(_, template)| {
9024 template.tags.iter().any(|source_tag| source_tag == &tag)
9025 })
9026 })
9027 .sorted_by_key(|(kind, _)| kind.to_owned())
9028 .collect();
9029 if let Some((leading_tag_source, _)) = tags.first() {
9030 // Strongest source wins; if we have worktree tag binding, prefer that to
9031 // global and language bindings;
9032 // if we have a global binding, prefer that to language binding.
9033 let first_mismatch = tags
9034 .iter()
9035 .position(|(tag_source, _)| tag_source != leading_tag_source);
9036 if let Some(index) = first_mismatch {
9037 tags.truncate(index);
9038 }
9039 }
9040
9041 tags
9042 }
9043
9044 pub fn move_to_enclosing_bracket(
9045 &mut self,
9046 _: &MoveToEnclosingBracket,
9047 cx: &mut ViewContext<Self>,
9048 ) {
9049 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9050 s.move_offsets_with(|snapshot, selection| {
9051 let Some(enclosing_bracket_ranges) =
9052 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9053 else {
9054 return;
9055 };
9056
9057 let mut best_length = usize::MAX;
9058 let mut best_inside = false;
9059 let mut best_in_bracket_range = false;
9060 let mut best_destination = None;
9061 for (open, close) in enclosing_bracket_ranges {
9062 let close = close.to_inclusive();
9063 let length = close.end() - open.start;
9064 let inside = selection.start >= open.end && selection.end <= *close.start();
9065 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9066 || close.contains(&selection.head());
9067
9068 // If best is next to a bracket and current isn't, skip
9069 if !in_bracket_range && best_in_bracket_range {
9070 continue;
9071 }
9072
9073 // Prefer smaller lengths unless best is inside and current isn't
9074 if length > best_length && (best_inside || !inside) {
9075 continue;
9076 }
9077
9078 best_length = length;
9079 best_inside = inside;
9080 best_in_bracket_range = in_bracket_range;
9081 best_destination = Some(
9082 if close.contains(&selection.start) && close.contains(&selection.end) {
9083 if inside {
9084 open.end
9085 } else {
9086 open.start
9087 }
9088 } else if inside {
9089 *close.start()
9090 } else {
9091 *close.end()
9092 },
9093 );
9094 }
9095
9096 if let Some(destination) = best_destination {
9097 selection.collapse_to(destination, SelectionGoal::None);
9098 }
9099 })
9100 });
9101 }
9102
9103 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9104 self.end_selection(cx);
9105 self.selection_history.mode = SelectionHistoryMode::Undoing;
9106 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9107 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9108 self.select_next_state = entry.select_next_state;
9109 self.select_prev_state = entry.select_prev_state;
9110 self.add_selections_state = entry.add_selections_state;
9111 self.request_autoscroll(Autoscroll::newest(), cx);
9112 }
9113 self.selection_history.mode = SelectionHistoryMode::Normal;
9114 }
9115
9116 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9117 self.end_selection(cx);
9118 self.selection_history.mode = SelectionHistoryMode::Redoing;
9119 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9120 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9121 self.select_next_state = entry.select_next_state;
9122 self.select_prev_state = entry.select_prev_state;
9123 self.add_selections_state = entry.add_selections_state;
9124 self.request_autoscroll(Autoscroll::newest(), cx);
9125 }
9126 self.selection_history.mode = SelectionHistoryMode::Normal;
9127 }
9128
9129 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9130 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9131 }
9132
9133 pub fn expand_excerpts_down(
9134 &mut self,
9135 action: &ExpandExcerptsDown,
9136 cx: &mut ViewContext<Self>,
9137 ) {
9138 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9139 }
9140
9141 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9142 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9143 }
9144
9145 pub fn expand_excerpts_for_direction(
9146 &mut self,
9147 lines: u32,
9148 direction: ExpandExcerptDirection,
9149 cx: &mut ViewContext<Self>,
9150 ) {
9151 let selections = self.selections.disjoint_anchors();
9152
9153 let lines = if lines == 0 {
9154 EditorSettings::get_global(cx).expand_excerpt_lines
9155 } else {
9156 lines
9157 };
9158
9159 self.buffer.update(cx, |buffer, cx| {
9160 let snapshot = buffer.snapshot(cx);
9161 let mut excerpt_ids = selections
9162 .iter()
9163 .flat_map(|selection| {
9164 snapshot
9165 .excerpts_for_range(selection.range())
9166 .map(|excerpt| excerpt.id())
9167 })
9168 .collect::<Vec<_>>();
9169 excerpt_ids.sort();
9170 excerpt_ids.dedup();
9171 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9172 })
9173 }
9174
9175 pub fn expand_excerpt(
9176 &mut self,
9177 excerpt: ExcerptId,
9178 direction: ExpandExcerptDirection,
9179 cx: &mut ViewContext<Self>,
9180 ) {
9181 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9182 self.buffer.update(cx, |buffer, cx| {
9183 buffer.expand_excerpts([excerpt], lines, direction, cx)
9184 })
9185 }
9186
9187 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9188 self.go_to_diagnostic_impl(Direction::Next, cx)
9189 }
9190
9191 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9192 self.go_to_diagnostic_impl(Direction::Prev, cx)
9193 }
9194
9195 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9196 let buffer = self.buffer.read(cx).snapshot(cx);
9197 let selection = self.selections.newest::<usize>(cx);
9198
9199 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9200 if direction == Direction::Next {
9201 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9202 self.activate_diagnostics(popover.group_id(), cx);
9203 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9204 let primary_range_start = active_diagnostics.primary_range.start;
9205 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9206 let mut new_selection = s.newest_anchor().clone();
9207 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9208 s.select_anchors(vec![new_selection.clone()]);
9209 });
9210 }
9211 return;
9212 }
9213 }
9214
9215 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9216 active_diagnostics
9217 .primary_range
9218 .to_offset(&buffer)
9219 .to_inclusive()
9220 });
9221 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9222 if active_primary_range.contains(&selection.head()) {
9223 *active_primary_range.start()
9224 } else {
9225 selection.head()
9226 }
9227 } else {
9228 selection.head()
9229 };
9230 let snapshot = self.snapshot(cx);
9231 loop {
9232 let diagnostics = if direction == Direction::Prev {
9233 buffer
9234 .diagnostics_in_range(0..search_start, true)
9235 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9236 diagnostic,
9237 range: range.to_offset(&buffer),
9238 })
9239 .collect::<Vec<_>>()
9240 } else {
9241 buffer
9242 .diagnostics_in_range(search_start..buffer.len(), false)
9243 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9244 diagnostic,
9245 range: range.to_offset(&buffer),
9246 })
9247 .collect::<Vec<_>>()
9248 }
9249 .into_iter()
9250 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9251 let group = diagnostics
9252 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9253 // be sorted in a stable way
9254 // skip until we are at current active diagnostic, if it exists
9255 .skip_while(|entry| {
9256 (match direction {
9257 Direction::Prev => entry.range.start >= search_start,
9258 Direction::Next => entry.range.start <= search_start,
9259 }) && self
9260 .active_diagnostics
9261 .as_ref()
9262 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9263 })
9264 .find_map(|entry| {
9265 if entry.diagnostic.is_primary
9266 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9267 && !entry.range.is_empty()
9268 // if we match with the active diagnostic, skip it
9269 && Some(entry.diagnostic.group_id)
9270 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9271 {
9272 Some((entry.range, entry.diagnostic.group_id))
9273 } else {
9274 None
9275 }
9276 });
9277
9278 if let Some((primary_range, group_id)) = group {
9279 self.activate_diagnostics(group_id, cx);
9280 if self.active_diagnostics.is_some() {
9281 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9282 s.select(vec![Selection {
9283 id: selection.id,
9284 start: primary_range.start,
9285 end: primary_range.start,
9286 reversed: false,
9287 goal: SelectionGoal::None,
9288 }]);
9289 });
9290 }
9291 break;
9292 } else {
9293 // Cycle around to the start of the buffer, potentially moving back to the start of
9294 // the currently active diagnostic.
9295 active_primary_range.take();
9296 if direction == Direction::Prev {
9297 if search_start == buffer.len() {
9298 break;
9299 } else {
9300 search_start = buffer.len();
9301 }
9302 } else if search_start == 0 {
9303 break;
9304 } else {
9305 search_start = 0;
9306 }
9307 }
9308 }
9309 }
9310
9311 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9312 let snapshot = self.snapshot(cx);
9313 let selection = self.selections.newest::<Point>(cx);
9314 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9315 }
9316
9317 fn go_to_hunk_after_position(
9318 &mut self,
9319 snapshot: &EditorSnapshot,
9320 position: Point,
9321 cx: &mut ViewContext<Editor>,
9322 ) -> Option<MultiBufferDiffHunk> {
9323 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9324 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9325 snapshot,
9326 position,
9327 ix > 0,
9328 snapshot.diff_map.diff_hunks_in_range(
9329 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9330 &snapshot.buffer_snapshot,
9331 ),
9332 cx,
9333 ) {
9334 return Some(hunk);
9335 }
9336 }
9337 None
9338 }
9339
9340 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9341 let snapshot = self.snapshot(cx);
9342 let selection = self.selections.newest::<Point>(cx);
9343 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9344 }
9345
9346 fn go_to_hunk_before_position(
9347 &mut self,
9348 snapshot: &EditorSnapshot,
9349 position: Point,
9350 cx: &mut ViewContext<Editor>,
9351 ) -> Option<MultiBufferDiffHunk> {
9352 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9353 .into_iter()
9354 .enumerate()
9355 {
9356 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9357 snapshot,
9358 position,
9359 ix > 0,
9360 snapshot
9361 .diff_map
9362 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9363 cx,
9364 ) {
9365 return Some(hunk);
9366 }
9367 }
9368 None
9369 }
9370
9371 fn go_to_next_hunk_in_direction(
9372 &mut self,
9373 snapshot: &DisplaySnapshot,
9374 initial_point: Point,
9375 is_wrapped: bool,
9376 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9377 cx: &mut ViewContext<Editor>,
9378 ) -> Option<MultiBufferDiffHunk> {
9379 let display_point = initial_point.to_display_point(snapshot);
9380 let mut hunks = hunks
9381 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9382 .filter(|(display_hunk, _)| {
9383 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9384 })
9385 .dedup();
9386
9387 if let Some((display_hunk, hunk)) = hunks.next() {
9388 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9389 let row = display_hunk.start_display_row();
9390 let point = DisplayPoint::new(row, 0);
9391 s.select_display_ranges([point..point]);
9392 });
9393
9394 Some(hunk)
9395 } else {
9396 None
9397 }
9398 }
9399
9400 pub fn go_to_definition(
9401 &mut self,
9402 _: &GoToDefinition,
9403 cx: &mut ViewContext<Self>,
9404 ) -> Task<Result<Navigated>> {
9405 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9406 cx.spawn(|editor, mut cx| async move {
9407 if definition.await? == Navigated::Yes {
9408 return Ok(Navigated::Yes);
9409 }
9410 match editor.update(&mut cx, |editor, cx| {
9411 editor.find_all_references(&FindAllReferences, cx)
9412 })? {
9413 Some(references) => references.await,
9414 None => Ok(Navigated::No),
9415 }
9416 })
9417 }
9418
9419 pub fn go_to_declaration(
9420 &mut self,
9421 _: &GoToDeclaration,
9422 cx: &mut ViewContext<Self>,
9423 ) -> Task<Result<Navigated>> {
9424 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9425 }
9426
9427 pub fn go_to_declaration_split(
9428 &mut self,
9429 _: &GoToDeclaration,
9430 cx: &mut ViewContext<Self>,
9431 ) -> Task<Result<Navigated>> {
9432 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9433 }
9434
9435 pub fn go_to_implementation(
9436 &mut self,
9437 _: &GoToImplementation,
9438 cx: &mut ViewContext<Self>,
9439 ) -> Task<Result<Navigated>> {
9440 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9441 }
9442
9443 pub fn go_to_implementation_split(
9444 &mut self,
9445 _: &GoToImplementationSplit,
9446 cx: &mut ViewContext<Self>,
9447 ) -> Task<Result<Navigated>> {
9448 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9449 }
9450
9451 pub fn go_to_type_definition(
9452 &mut self,
9453 _: &GoToTypeDefinition,
9454 cx: &mut ViewContext<Self>,
9455 ) -> Task<Result<Navigated>> {
9456 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9457 }
9458
9459 pub fn go_to_definition_split(
9460 &mut self,
9461 _: &GoToDefinitionSplit,
9462 cx: &mut ViewContext<Self>,
9463 ) -> Task<Result<Navigated>> {
9464 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9465 }
9466
9467 pub fn go_to_type_definition_split(
9468 &mut self,
9469 _: &GoToTypeDefinitionSplit,
9470 cx: &mut ViewContext<Self>,
9471 ) -> Task<Result<Navigated>> {
9472 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9473 }
9474
9475 fn go_to_definition_of_kind(
9476 &mut self,
9477 kind: GotoDefinitionKind,
9478 split: bool,
9479 cx: &mut ViewContext<Self>,
9480 ) -> Task<Result<Navigated>> {
9481 let Some(provider) = self.semantics_provider.clone() else {
9482 return Task::ready(Ok(Navigated::No));
9483 };
9484 let head = self.selections.newest::<usize>(cx).head();
9485 let buffer = self.buffer.read(cx);
9486 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9487 text_anchor
9488 } else {
9489 return Task::ready(Ok(Navigated::No));
9490 };
9491
9492 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9493 return Task::ready(Ok(Navigated::No));
9494 };
9495
9496 cx.spawn(|editor, mut cx| async move {
9497 let definitions = definitions.await?;
9498 let navigated = editor
9499 .update(&mut cx, |editor, cx| {
9500 editor.navigate_to_hover_links(
9501 Some(kind),
9502 definitions
9503 .into_iter()
9504 .filter(|location| {
9505 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9506 })
9507 .map(HoverLink::Text)
9508 .collect::<Vec<_>>(),
9509 split,
9510 cx,
9511 )
9512 })?
9513 .await?;
9514 anyhow::Ok(navigated)
9515 })
9516 }
9517
9518 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9519 let selection = self.selections.newest_anchor();
9520 let head = selection.head();
9521 let tail = selection.tail();
9522
9523 let Some((buffer, start_position)) =
9524 self.buffer.read(cx).text_anchor_for_position(head, cx)
9525 else {
9526 return;
9527 };
9528
9529 let end_position = if head != tail {
9530 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9531 return;
9532 };
9533 Some(pos)
9534 } else {
9535 None
9536 };
9537
9538 let url_finder = cx.spawn(|editor, mut cx| async move {
9539 let url = if let Some(end_pos) = end_position {
9540 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9541 } else {
9542 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9543 };
9544
9545 if let Some(url) = url {
9546 editor.update(&mut cx, |_, cx| {
9547 cx.open_url(&url);
9548 })
9549 } else {
9550 Ok(())
9551 }
9552 });
9553
9554 url_finder.detach();
9555 }
9556
9557 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9558 let Some(workspace) = self.workspace() else {
9559 return;
9560 };
9561
9562 let position = self.selections.newest_anchor().head();
9563
9564 let Some((buffer, buffer_position)) =
9565 self.buffer.read(cx).text_anchor_for_position(position, cx)
9566 else {
9567 return;
9568 };
9569
9570 let project = self.project.clone();
9571
9572 cx.spawn(|_, mut cx| async move {
9573 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9574
9575 if let Some((_, path)) = result {
9576 workspace
9577 .update(&mut cx, |workspace, cx| {
9578 workspace.open_resolved_path(path, cx)
9579 })?
9580 .await?;
9581 }
9582 anyhow::Ok(())
9583 })
9584 .detach();
9585 }
9586
9587 pub(crate) fn navigate_to_hover_links(
9588 &mut self,
9589 kind: Option<GotoDefinitionKind>,
9590 mut definitions: Vec<HoverLink>,
9591 split: bool,
9592 cx: &mut ViewContext<Editor>,
9593 ) -> Task<Result<Navigated>> {
9594 // If there is one definition, just open it directly
9595 if definitions.len() == 1 {
9596 let definition = definitions.pop().unwrap();
9597
9598 enum TargetTaskResult {
9599 Location(Option<Location>),
9600 AlreadyNavigated,
9601 }
9602
9603 let target_task = match definition {
9604 HoverLink::Text(link) => {
9605 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9606 }
9607 HoverLink::InlayHint(lsp_location, server_id) => {
9608 let computation = self.compute_target_location(lsp_location, server_id, cx);
9609 cx.background_executor().spawn(async move {
9610 let location = computation.await?;
9611 Ok(TargetTaskResult::Location(location))
9612 })
9613 }
9614 HoverLink::Url(url) => {
9615 cx.open_url(&url);
9616 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9617 }
9618 HoverLink::File(path) => {
9619 if let Some(workspace) = self.workspace() {
9620 cx.spawn(|_, mut cx| async move {
9621 workspace
9622 .update(&mut cx, |workspace, cx| {
9623 workspace.open_resolved_path(path, cx)
9624 })?
9625 .await
9626 .map(|_| TargetTaskResult::AlreadyNavigated)
9627 })
9628 } else {
9629 Task::ready(Ok(TargetTaskResult::Location(None)))
9630 }
9631 }
9632 };
9633 cx.spawn(|editor, mut cx| async move {
9634 let target = match target_task.await.context("target resolution task")? {
9635 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9636 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9637 TargetTaskResult::Location(Some(target)) => target,
9638 };
9639
9640 editor.update(&mut cx, |editor, cx| {
9641 let Some(workspace) = editor.workspace() else {
9642 return Navigated::No;
9643 };
9644 let pane = workspace.read(cx).active_pane().clone();
9645
9646 let range = target.range.to_offset(target.buffer.read(cx));
9647 let range = editor.range_for_match(&range);
9648
9649 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9650 let buffer = target.buffer.read(cx);
9651 let range = check_multiline_range(buffer, range);
9652 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9653 s.select_ranges([range]);
9654 });
9655 } else {
9656 cx.window_context().defer(move |cx| {
9657 let target_editor: View<Self> =
9658 workspace.update(cx, |workspace, cx| {
9659 let pane = if split {
9660 workspace.adjacent_pane(cx)
9661 } else {
9662 workspace.active_pane().clone()
9663 };
9664
9665 workspace.open_project_item(
9666 pane,
9667 target.buffer.clone(),
9668 true,
9669 true,
9670 cx,
9671 )
9672 });
9673 target_editor.update(cx, |target_editor, cx| {
9674 // When selecting a definition in a different buffer, disable the nav history
9675 // to avoid creating a history entry at the previous cursor location.
9676 pane.update(cx, |pane, _| pane.disable_history());
9677 let buffer = target.buffer.read(cx);
9678 let range = check_multiline_range(buffer, range);
9679 target_editor.change_selections(
9680 Some(Autoscroll::focused()),
9681 cx,
9682 |s| {
9683 s.select_ranges([range]);
9684 },
9685 );
9686 pane.update(cx, |pane, _| pane.enable_history());
9687 });
9688 });
9689 }
9690 Navigated::Yes
9691 })
9692 })
9693 } else if !definitions.is_empty() {
9694 cx.spawn(|editor, mut cx| async move {
9695 let (title, location_tasks, workspace) = editor
9696 .update(&mut cx, |editor, cx| {
9697 let tab_kind = match kind {
9698 Some(GotoDefinitionKind::Implementation) => "Implementations",
9699 _ => "Definitions",
9700 };
9701 let title = definitions
9702 .iter()
9703 .find_map(|definition| match definition {
9704 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9705 let buffer = origin.buffer.read(cx);
9706 format!(
9707 "{} for {}",
9708 tab_kind,
9709 buffer
9710 .text_for_range(origin.range.clone())
9711 .collect::<String>()
9712 )
9713 }),
9714 HoverLink::InlayHint(_, _) => None,
9715 HoverLink::Url(_) => None,
9716 HoverLink::File(_) => None,
9717 })
9718 .unwrap_or(tab_kind.to_string());
9719 let location_tasks = definitions
9720 .into_iter()
9721 .map(|definition| match definition {
9722 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9723 HoverLink::InlayHint(lsp_location, server_id) => {
9724 editor.compute_target_location(lsp_location, server_id, cx)
9725 }
9726 HoverLink::Url(_) => Task::ready(Ok(None)),
9727 HoverLink::File(_) => Task::ready(Ok(None)),
9728 })
9729 .collect::<Vec<_>>();
9730 (title, location_tasks, editor.workspace().clone())
9731 })
9732 .context("location tasks preparation")?;
9733
9734 let locations = future::join_all(location_tasks)
9735 .await
9736 .into_iter()
9737 .filter_map(|location| location.transpose())
9738 .collect::<Result<_>>()
9739 .context("location tasks")?;
9740
9741 let Some(workspace) = workspace else {
9742 return Ok(Navigated::No);
9743 };
9744 let opened = workspace
9745 .update(&mut cx, |workspace, cx| {
9746 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9747 })
9748 .ok();
9749
9750 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9751 })
9752 } else {
9753 Task::ready(Ok(Navigated::No))
9754 }
9755 }
9756
9757 fn compute_target_location(
9758 &self,
9759 lsp_location: lsp::Location,
9760 server_id: LanguageServerId,
9761 cx: &mut ViewContext<Self>,
9762 ) -> Task<anyhow::Result<Option<Location>>> {
9763 let Some(project) = self.project.clone() else {
9764 return Task::ready(Ok(None));
9765 };
9766
9767 cx.spawn(move |editor, mut cx| async move {
9768 let location_task = editor.update(&mut cx, |_, cx| {
9769 project.update(cx, |project, cx| {
9770 let language_server_name = project
9771 .language_server_statuses(cx)
9772 .find(|(id, _)| server_id == *id)
9773 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9774 language_server_name.map(|language_server_name| {
9775 project.open_local_buffer_via_lsp(
9776 lsp_location.uri.clone(),
9777 server_id,
9778 language_server_name,
9779 cx,
9780 )
9781 })
9782 })
9783 })?;
9784 let location = match location_task {
9785 Some(task) => Some({
9786 let target_buffer_handle = task.await.context("open local buffer")?;
9787 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9788 let target_start = target_buffer
9789 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9790 let target_end = target_buffer
9791 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9792 target_buffer.anchor_after(target_start)
9793 ..target_buffer.anchor_before(target_end)
9794 })?;
9795 Location {
9796 buffer: target_buffer_handle,
9797 range,
9798 }
9799 }),
9800 None => None,
9801 };
9802 Ok(location)
9803 })
9804 }
9805
9806 pub fn find_all_references(
9807 &mut self,
9808 _: &FindAllReferences,
9809 cx: &mut ViewContext<Self>,
9810 ) -> Option<Task<Result<Navigated>>> {
9811 let selection = self.selections.newest::<usize>(cx);
9812 let multi_buffer = self.buffer.read(cx);
9813 let head = selection.head();
9814
9815 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9816 let head_anchor = multi_buffer_snapshot.anchor_at(
9817 head,
9818 if head < selection.tail() {
9819 Bias::Right
9820 } else {
9821 Bias::Left
9822 },
9823 );
9824
9825 match self
9826 .find_all_references_task_sources
9827 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9828 {
9829 Ok(_) => {
9830 log::info!(
9831 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9832 );
9833 return None;
9834 }
9835 Err(i) => {
9836 self.find_all_references_task_sources.insert(i, head_anchor);
9837 }
9838 }
9839
9840 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9841 let workspace = self.workspace()?;
9842 let project = workspace.read(cx).project().clone();
9843 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9844 Some(cx.spawn(|editor, mut cx| async move {
9845 let _cleanup = defer({
9846 let mut cx = cx.clone();
9847 move || {
9848 let _ = editor.update(&mut cx, |editor, _| {
9849 if let Ok(i) =
9850 editor
9851 .find_all_references_task_sources
9852 .binary_search_by(|anchor| {
9853 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9854 })
9855 {
9856 editor.find_all_references_task_sources.remove(i);
9857 }
9858 });
9859 }
9860 });
9861
9862 let locations = references.await?;
9863 if locations.is_empty() {
9864 return anyhow::Ok(Navigated::No);
9865 }
9866
9867 workspace.update(&mut cx, |workspace, cx| {
9868 let title = locations
9869 .first()
9870 .as_ref()
9871 .map(|location| {
9872 let buffer = location.buffer.read(cx);
9873 format!(
9874 "References to `{}`",
9875 buffer
9876 .text_for_range(location.range.clone())
9877 .collect::<String>()
9878 )
9879 })
9880 .unwrap();
9881 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9882 Navigated::Yes
9883 })
9884 }))
9885 }
9886
9887 /// Opens a multibuffer with the given project locations in it
9888 pub fn open_locations_in_multibuffer(
9889 workspace: &mut Workspace,
9890 mut locations: Vec<Location>,
9891 title: String,
9892 split: bool,
9893 cx: &mut ViewContext<Workspace>,
9894 ) {
9895 // If there are multiple definitions, open them in a multibuffer
9896 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9897 let mut locations = locations.into_iter().peekable();
9898 let mut ranges_to_highlight = Vec::new();
9899 let capability = workspace.project().read(cx).capability();
9900
9901 let excerpt_buffer = cx.new_model(|cx| {
9902 let mut multibuffer = MultiBuffer::new(capability);
9903 while let Some(location) = locations.next() {
9904 let buffer = location.buffer.read(cx);
9905 let mut ranges_for_buffer = Vec::new();
9906 let range = location.range.to_offset(buffer);
9907 ranges_for_buffer.push(range.clone());
9908
9909 while let Some(next_location) = locations.peek() {
9910 if next_location.buffer == location.buffer {
9911 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9912 locations.next();
9913 } else {
9914 break;
9915 }
9916 }
9917
9918 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9919 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9920 location.buffer.clone(),
9921 ranges_for_buffer,
9922 DEFAULT_MULTIBUFFER_CONTEXT,
9923 cx,
9924 ))
9925 }
9926
9927 multibuffer.with_title(title)
9928 });
9929
9930 let editor = cx.new_view(|cx| {
9931 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9932 });
9933 editor.update(cx, |editor, cx| {
9934 if let Some(first_range) = ranges_to_highlight.first() {
9935 editor.change_selections(None, cx, |selections| {
9936 selections.clear_disjoint();
9937 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9938 });
9939 }
9940 editor.highlight_background::<Self>(
9941 &ranges_to_highlight,
9942 |theme| theme.editor_highlighted_line_background,
9943 cx,
9944 );
9945 editor.register_buffers_with_language_servers(cx);
9946 });
9947
9948 let item = Box::new(editor);
9949 let item_id = item.item_id();
9950
9951 if split {
9952 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9953 } else {
9954 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9955 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9956 pane.close_current_preview_item(cx)
9957 } else {
9958 None
9959 }
9960 });
9961 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9962 }
9963 workspace.active_pane().update(cx, |pane, cx| {
9964 pane.set_preview_item_id(Some(item_id), cx);
9965 });
9966 }
9967
9968 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9969 use language::ToOffset as _;
9970
9971 let provider = self.semantics_provider.clone()?;
9972 let selection = self.selections.newest_anchor().clone();
9973 let (cursor_buffer, cursor_buffer_position) = self
9974 .buffer
9975 .read(cx)
9976 .text_anchor_for_position(selection.head(), cx)?;
9977 let (tail_buffer, cursor_buffer_position_end) = self
9978 .buffer
9979 .read(cx)
9980 .text_anchor_for_position(selection.tail(), cx)?;
9981 if tail_buffer != cursor_buffer {
9982 return None;
9983 }
9984
9985 let snapshot = cursor_buffer.read(cx).snapshot();
9986 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9987 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9988 let prepare_rename = provider
9989 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9990 .unwrap_or_else(|| Task::ready(Ok(None)));
9991 drop(snapshot);
9992
9993 Some(cx.spawn(|this, mut cx| async move {
9994 let rename_range = if let Some(range) = prepare_rename.await? {
9995 Some(range)
9996 } else {
9997 this.update(&mut cx, |this, cx| {
9998 let buffer = this.buffer.read(cx).snapshot(cx);
9999 let mut buffer_highlights = this
10000 .document_highlights_for_position(selection.head(), &buffer)
10001 .filter(|highlight| {
10002 highlight.start.excerpt_id == selection.head().excerpt_id
10003 && highlight.end.excerpt_id == selection.head().excerpt_id
10004 });
10005 buffer_highlights
10006 .next()
10007 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10008 })?
10009 };
10010 if let Some(rename_range) = rename_range {
10011 this.update(&mut cx, |this, cx| {
10012 let snapshot = cursor_buffer.read(cx).snapshot();
10013 let rename_buffer_range = rename_range.to_offset(&snapshot);
10014 let cursor_offset_in_rename_range =
10015 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10016 let cursor_offset_in_rename_range_end =
10017 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10018
10019 this.take_rename(false, cx);
10020 let buffer = this.buffer.read(cx).read(cx);
10021 let cursor_offset = selection.head().to_offset(&buffer);
10022 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10023 let rename_end = rename_start + rename_buffer_range.len();
10024 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10025 let mut old_highlight_id = None;
10026 let old_name: Arc<str> = buffer
10027 .chunks(rename_start..rename_end, true)
10028 .map(|chunk| {
10029 if old_highlight_id.is_none() {
10030 old_highlight_id = chunk.syntax_highlight_id;
10031 }
10032 chunk.text
10033 })
10034 .collect::<String>()
10035 .into();
10036
10037 drop(buffer);
10038
10039 // Position the selection in the rename editor so that it matches the current selection.
10040 this.show_local_selections = false;
10041 let rename_editor = cx.new_view(|cx| {
10042 let mut editor = Editor::single_line(cx);
10043 editor.buffer.update(cx, |buffer, cx| {
10044 buffer.edit([(0..0, old_name.clone())], None, cx)
10045 });
10046 let rename_selection_range = match cursor_offset_in_rename_range
10047 .cmp(&cursor_offset_in_rename_range_end)
10048 {
10049 Ordering::Equal => {
10050 editor.select_all(&SelectAll, cx);
10051 return editor;
10052 }
10053 Ordering::Less => {
10054 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10055 }
10056 Ordering::Greater => {
10057 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10058 }
10059 };
10060 if rename_selection_range.end > old_name.len() {
10061 editor.select_all(&SelectAll, cx);
10062 } else {
10063 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10064 s.select_ranges([rename_selection_range]);
10065 });
10066 }
10067 editor
10068 });
10069 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10070 if e == &EditorEvent::Focused {
10071 cx.emit(EditorEvent::FocusedIn)
10072 }
10073 })
10074 .detach();
10075
10076 let write_highlights =
10077 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10078 let read_highlights =
10079 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10080 let ranges = write_highlights
10081 .iter()
10082 .flat_map(|(_, ranges)| ranges.iter())
10083 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10084 .cloned()
10085 .collect();
10086
10087 this.highlight_text::<Rename>(
10088 ranges,
10089 HighlightStyle {
10090 fade_out: Some(0.6),
10091 ..Default::default()
10092 },
10093 cx,
10094 );
10095 let rename_focus_handle = rename_editor.focus_handle(cx);
10096 cx.focus(&rename_focus_handle);
10097 let block_id = this.insert_blocks(
10098 [BlockProperties {
10099 style: BlockStyle::Flex,
10100 placement: BlockPlacement::Below(range.start),
10101 height: 1,
10102 render: Arc::new({
10103 let rename_editor = rename_editor.clone();
10104 move |cx: &mut BlockContext| {
10105 let mut text_style = cx.editor_style.text.clone();
10106 if let Some(highlight_style) = old_highlight_id
10107 .and_then(|h| h.style(&cx.editor_style.syntax))
10108 {
10109 text_style = text_style.highlight(highlight_style);
10110 }
10111 div()
10112 .block_mouse_down()
10113 .pl(cx.anchor_x)
10114 .child(EditorElement::new(
10115 &rename_editor,
10116 EditorStyle {
10117 background: cx.theme().system().transparent,
10118 local_player: cx.editor_style.local_player,
10119 text: text_style,
10120 scrollbar_width: cx.editor_style.scrollbar_width,
10121 syntax: cx.editor_style.syntax.clone(),
10122 status: cx.editor_style.status.clone(),
10123 inlay_hints_style: HighlightStyle {
10124 font_weight: Some(FontWeight::BOLD),
10125 ..make_inlay_hints_style(cx)
10126 },
10127 inline_completion_styles: make_suggestion_styles(
10128 cx,
10129 ),
10130 ..EditorStyle::default()
10131 },
10132 ))
10133 .into_any_element()
10134 }
10135 }),
10136 priority: 0,
10137 }],
10138 Some(Autoscroll::fit()),
10139 cx,
10140 )[0];
10141 this.pending_rename = Some(RenameState {
10142 range,
10143 old_name,
10144 editor: rename_editor,
10145 block_id,
10146 });
10147 })?;
10148 }
10149
10150 Ok(())
10151 }))
10152 }
10153
10154 pub fn confirm_rename(
10155 &mut self,
10156 _: &ConfirmRename,
10157 cx: &mut ViewContext<Self>,
10158 ) -> Option<Task<Result<()>>> {
10159 let rename = self.take_rename(false, cx)?;
10160 let workspace = self.workspace()?.downgrade();
10161 let (buffer, start) = self
10162 .buffer
10163 .read(cx)
10164 .text_anchor_for_position(rename.range.start, cx)?;
10165 let (end_buffer, _) = self
10166 .buffer
10167 .read(cx)
10168 .text_anchor_for_position(rename.range.end, cx)?;
10169 if buffer != end_buffer {
10170 return None;
10171 }
10172
10173 let old_name = rename.old_name;
10174 let new_name = rename.editor.read(cx).text(cx);
10175
10176 let rename = self.semantics_provider.as_ref()?.perform_rename(
10177 &buffer,
10178 start,
10179 new_name.clone(),
10180 cx,
10181 )?;
10182
10183 Some(cx.spawn(|editor, mut cx| async move {
10184 let project_transaction = rename.await?;
10185 Self::open_project_transaction(
10186 &editor,
10187 workspace,
10188 project_transaction,
10189 format!("Rename: {} → {}", old_name, new_name),
10190 cx.clone(),
10191 )
10192 .await?;
10193
10194 editor.update(&mut cx, |editor, cx| {
10195 editor.refresh_document_highlights(cx);
10196 })?;
10197 Ok(())
10198 }))
10199 }
10200
10201 fn take_rename(
10202 &mut self,
10203 moving_cursor: bool,
10204 cx: &mut ViewContext<Self>,
10205 ) -> Option<RenameState> {
10206 let rename = self.pending_rename.take()?;
10207 if rename.editor.focus_handle(cx).is_focused(cx) {
10208 cx.focus(&self.focus_handle);
10209 }
10210
10211 self.remove_blocks(
10212 [rename.block_id].into_iter().collect(),
10213 Some(Autoscroll::fit()),
10214 cx,
10215 );
10216 self.clear_highlights::<Rename>(cx);
10217 self.show_local_selections = true;
10218
10219 if moving_cursor {
10220 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10221 editor.selections.newest::<usize>(cx).head()
10222 });
10223
10224 // Update the selection to match the position of the selection inside
10225 // the rename editor.
10226 let snapshot = self.buffer.read(cx).read(cx);
10227 let rename_range = rename.range.to_offset(&snapshot);
10228 let cursor_in_editor = snapshot
10229 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10230 .min(rename_range.end);
10231 drop(snapshot);
10232
10233 self.change_selections(None, cx, |s| {
10234 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10235 });
10236 } else {
10237 self.refresh_document_highlights(cx);
10238 }
10239
10240 Some(rename)
10241 }
10242
10243 pub fn pending_rename(&self) -> Option<&RenameState> {
10244 self.pending_rename.as_ref()
10245 }
10246
10247 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10248 let project = match &self.project {
10249 Some(project) => project.clone(),
10250 None => return None,
10251 };
10252
10253 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10254 }
10255
10256 fn format_selections(
10257 &mut self,
10258 _: &FormatSelections,
10259 cx: &mut ViewContext<Self>,
10260 ) -> Option<Task<Result<()>>> {
10261 let project = match &self.project {
10262 Some(project) => project.clone(),
10263 None => return None,
10264 };
10265
10266 let selections = self
10267 .selections
10268 .all_adjusted(cx)
10269 .into_iter()
10270 .filter(|s| !s.is_empty())
10271 .collect_vec();
10272
10273 Some(self.perform_format(
10274 project,
10275 FormatTrigger::Manual,
10276 FormatTarget::Ranges(selections),
10277 cx,
10278 ))
10279 }
10280
10281 fn perform_format(
10282 &mut self,
10283 project: Model<Project>,
10284 trigger: FormatTrigger,
10285 target: FormatTarget,
10286 cx: &mut ViewContext<Self>,
10287 ) -> Task<Result<()>> {
10288 let buffer = self.buffer().clone();
10289 let mut buffers = buffer.read(cx).all_buffers();
10290 if trigger == FormatTrigger::Save {
10291 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10292 }
10293
10294 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10295 let format = project.update(cx, |project, cx| {
10296 project.format(buffers, true, trigger, target, cx)
10297 });
10298
10299 cx.spawn(|_, mut cx| async move {
10300 let transaction = futures::select_biased! {
10301 () = timeout => {
10302 log::warn!("timed out waiting for formatting");
10303 None
10304 }
10305 transaction = format.log_err().fuse() => transaction,
10306 };
10307
10308 buffer
10309 .update(&mut cx, |buffer, cx| {
10310 if let Some(transaction) = transaction {
10311 if !buffer.is_singleton() {
10312 buffer.push_transaction(&transaction.0, cx);
10313 }
10314 }
10315
10316 cx.notify();
10317 })
10318 .ok();
10319
10320 Ok(())
10321 })
10322 }
10323
10324 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10325 if let Some(project) = self.project.clone() {
10326 self.buffer.update(cx, |multi_buffer, cx| {
10327 project.update(cx, |project, cx| {
10328 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10329 });
10330 })
10331 }
10332 }
10333
10334 fn cancel_language_server_work(
10335 &mut self,
10336 _: &actions::CancelLanguageServerWork,
10337 cx: &mut ViewContext<Self>,
10338 ) {
10339 if let Some(project) = self.project.clone() {
10340 self.buffer.update(cx, |multi_buffer, cx| {
10341 project.update(cx, |project, cx| {
10342 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10343 });
10344 })
10345 }
10346 }
10347
10348 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10349 cx.show_character_palette();
10350 }
10351
10352 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10353 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10354 let buffer = self.buffer.read(cx).snapshot(cx);
10355 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10356 let is_valid = buffer
10357 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10358 .any(|entry| {
10359 let range = entry.range.to_offset(&buffer);
10360 entry.diagnostic.is_primary
10361 && !range.is_empty()
10362 && range.start == primary_range_start
10363 && entry.diagnostic.message == active_diagnostics.primary_message
10364 });
10365
10366 if is_valid != active_diagnostics.is_valid {
10367 active_diagnostics.is_valid = is_valid;
10368 let mut new_styles = HashMap::default();
10369 for (block_id, diagnostic) in &active_diagnostics.blocks {
10370 new_styles.insert(
10371 *block_id,
10372 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10373 );
10374 }
10375 self.display_map.update(cx, |display_map, _cx| {
10376 display_map.replace_blocks(new_styles)
10377 });
10378 }
10379 }
10380 }
10381
10382 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10383 self.dismiss_diagnostics(cx);
10384 let snapshot = self.snapshot(cx);
10385 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10386 let buffer = self.buffer.read(cx).snapshot(cx);
10387
10388 let mut primary_range = None;
10389 let mut primary_message = None;
10390 let mut group_end = Point::zero();
10391 let diagnostic_group = buffer
10392 .diagnostic_group(group_id)
10393 .filter_map(|entry| {
10394 let start = entry.range.start.to_point(&buffer);
10395 let end = entry.range.end.to_point(&buffer);
10396 if snapshot.is_line_folded(MultiBufferRow(start.row))
10397 && (start.row == end.row
10398 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10399 {
10400 return None;
10401 }
10402 if end > group_end {
10403 group_end = end;
10404 }
10405 if entry.diagnostic.is_primary {
10406 primary_range = Some(entry.range.clone());
10407 primary_message = Some(entry.diagnostic.message.clone());
10408 }
10409 Some(entry)
10410 })
10411 .collect::<Vec<_>>();
10412 let primary_range = primary_range?;
10413 let primary_message = primary_message?;
10414
10415 let blocks = display_map
10416 .insert_blocks(
10417 diagnostic_group.iter().map(|entry| {
10418 let diagnostic = entry.diagnostic.clone();
10419 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10420 BlockProperties {
10421 style: BlockStyle::Fixed,
10422 placement: BlockPlacement::Below(
10423 buffer.anchor_after(entry.range.start),
10424 ),
10425 height: message_height,
10426 render: diagnostic_block_renderer(diagnostic, None, true, true),
10427 priority: 0,
10428 }
10429 }),
10430 cx,
10431 )
10432 .into_iter()
10433 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10434 .collect();
10435
10436 Some(ActiveDiagnosticGroup {
10437 primary_range,
10438 primary_message,
10439 group_id,
10440 blocks,
10441 is_valid: true,
10442 })
10443 });
10444 }
10445
10446 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10447 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10448 self.display_map.update(cx, |display_map, cx| {
10449 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10450 });
10451 cx.notify();
10452 }
10453 }
10454
10455 pub fn set_selections_from_remote(
10456 &mut self,
10457 selections: Vec<Selection<Anchor>>,
10458 pending_selection: Option<Selection<Anchor>>,
10459 cx: &mut ViewContext<Self>,
10460 ) {
10461 let old_cursor_position = self.selections.newest_anchor().head();
10462 self.selections.change_with(cx, |s| {
10463 s.select_anchors(selections);
10464 if let Some(pending_selection) = pending_selection {
10465 s.set_pending(pending_selection, SelectMode::Character);
10466 } else {
10467 s.clear_pending();
10468 }
10469 });
10470 self.selections_did_change(false, &old_cursor_position, true, cx);
10471 }
10472
10473 fn push_to_selection_history(&mut self) {
10474 self.selection_history.push(SelectionHistoryEntry {
10475 selections: self.selections.disjoint_anchors(),
10476 select_next_state: self.select_next_state.clone(),
10477 select_prev_state: self.select_prev_state.clone(),
10478 add_selections_state: self.add_selections_state.clone(),
10479 });
10480 }
10481
10482 pub fn transact(
10483 &mut self,
10484 cx: &mut ViewContext<Self>,
10485 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10486 ) -> Option<TransactionId> {
10487 self.start_transaction_at(Instant::now(), cx);
10488 update(self, cx);
10489 self.end_transaction_at(Instant::now(), cx)
10490 }
10491
10492 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10493 self.end_selection(cx);
10494 if let Some(tx_id) = self
10495 .buffer
10496 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10497 {
10498 self.selection_history
10499 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10500 cx.emit(EditorEvent::TransactionBegun {
10501 transaction_id: tx_id,
10502 })
10503 }
10504 }
10505
10506 pub fn end_transaction_at(
10507 &mut self,
10508 now: Instant,
10509 cx: &mut ViewContext<Self>,
10510 ) -> Option<TransactionId> {
10511 if let Some(transaction_id) = self
10512 .buffer
10513 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10514 {
10515 if let Some((_, end_selections)) =
10516 self.selection_history.transaction_mut(transaction_id)
10517 {
10518 *end_selections = Some(self.selections.disjoint_anchors());
10519 } else {
10520 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10521 }
10522
10523 cx.emit(EditorEvent::Edited { transaction_id });
10524 Some(transaction_id)
10525 } else {
10526 None
10527 }
10528 }
10529
10530 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10531 if self.is_singleton(cx) {
10532 let selection = self.selections.newest::<Point>(cx);
10533
10534 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10535 let range = if selection.is_empty() {
10536 let point = selection.head().to_display_point(&display_map);
10537 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10538 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10539 .to_point(&display_map);
10540 start..end
10541 } else {
10542 selection.range()
10543 };
10544 if display_map.folds_in_range(range).next().is_some() {
10545 self.unfold_lines(&Default::default(), cx)
10546 } else {
10547 self.fold(&Default::default(), cx)
10548 }
10549 } else {
10550 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10551 let mut toggled_buffers = HashSet::default();
10552 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10553 self.selections
10554 .disjoint_anchors()
10555 .into_iter()
10556 .map(|selection| selection.range()),
10557 ) {
10558 let buffer_id = buffer_snapshot.remote_id();
10559 if toggled_buffers.insert(buffer_id) {
10560 if self.buffer_folded(buffer_id, cx) {
10561 self.unfold_buffer(buffer_id, cx);
10562 } else {
10563 self.fold_buffer(buffer_id, cx);
10564 }
10565 }
10566 }
10567 }
10568 }
10569
10570 pub fn toggle_fold_recursive(
10571 &mut self,
10572 _: &actions::ToggleFoldRecursive,
10573 cx: &mut ViewContext<Self>,
10574 ) {
10575 let selection = self.selections.newest::<Point>(cx);
10576
10577 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10578 let range = if selection.is_empty() {
10579 let point = selection.head().to_display_point(&display_map);
10580 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10581 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10582 .to_point(&display_map);
10583 start..end
10584 } else {
10585 selection.range()
10586 };
10587 if display_map.folds_in_range(range).next().is_some() {
10588 self.unfold_recursive(&Default::default(), cx)
10589 } else {
10590 self.fold_recursive(&Default::default(), cx)
10591 }
10592 }
10593
10594 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10595 if self.is_singleton(cx) {
10596 let mut to_fold = Vec::new();
10597 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10598 let selections = self.selections.all_adjusted(cx);
10599
10600 for selection in selections {
10601 let range = selection.range().sorted();
10602 let buffer_start_row = range.start.row;
10603
10604 if range.start.row != range.end.row {
10605 let mut found = false;
10606 let mut row = range.start.row;
10607 while row <= range.end.row {
10608 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10609 {
10610 found = true;
10611 row = crease.range().end.row + 1;
10612 to_fold.push(crease);
10613 } else {
10614 row += 1
10615 }
10616 }
10617 if found {
10618 continue;
10619 }
10620 }
10621
10622 for row in (0..=range.start.row).rev() {
10623 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10624 if crease.range().end.row >= buffer_start_row {
10625 to_fold.push(crease);
10626 if row <= range.start.row {
10627 break;
10628 }
10629 }
10630 }
10631 }
10632 }
10633
10634 self.fold_creases(to_fold, true, cx);
10635 } else {
10636 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10637 let mut folded_buffers = HashSet::default();
10638 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10639 self.selections
10640 .disjoint_anchors()
10641 .into_iter()
10642 .map(|selection| selection.range()),
10643 ) {
10644 let buffer_id = buffer_snapshot.remote_id();
10645 if folded_buffers.insert(buffer_id) {
10646 self.fold_buffer(buffer_id, cx);
10647 }
10648 }
10649 }
10650 }
10651
10652 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10653 if !self.buffer.read(cx).is_singleton() {
10654 return;
10655 }
10656
10657 let fold_at_level = fold_at.level;
10658 let snapshot = self.buffer.read(cx).snapshot(cx);
10659 let mut to_fold = Vec::new();
10660 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10661
10662 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10663 while start_row < end_row {
10664 match self
10665 .snapshot(cx)
10666 .crease_for_buffer_row(MultiBufferRow(start_row))
10667 {
10668 Some(crease) => {
10669 let nested_start_row = crease.range().start.row + 1;
10670 let nested_end_row = crease.range().end.row;
10671
10672 if current_level < fold_at_level {
10673 stack.push((nested_start_row, nested_end_row, current_level + 1));
10674 } else if current_level == fold_at_level {
10675 to_fold.push(crease);
10676 }
10677
10678 start_row = nested_end_row + 1;
10679 }
10680 None => start_row += 1,
10681 }
10682 }
10683 }
10684
10685 self.fold_creases(to_fold, true, cx);
10686 }
10687
10688 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10689 if self.buffer.read(cx).is_singleton() {
10690 let mut fold_ranges = Vec::new();
10691 let snapshot = self.buffer.read(cx).snapshot(cx);
10692
10693 for row in 0..snapshot.max_row().0 {
10694 if let Some(foldable_range) =
10695 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10696 {
10697 fold_ranges.push(foldable_range);
10698 }
10699 }
10700
10701 self.fold_creases(fold_ranges, true, cx);
10702 } else {
10703 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10704 editor
10705 .update(&mut cx, |editor, cx| {
10706 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10707 editor.fold_buffer(buffer_id, cx);
10708 }
10709 })
10710 .ok();
10711 });
10712 }
10713 }
10714
10715 pub fn fold_function_bodies(
10716 &mut self,
10717 _: &actions::FoldFunctionBodies,
10718 cx: &mut ViewContext<Self>,
10719 ) {
10720 let snapshot = self.buffer.read(cx).snapshot(cx);
10721 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10722 return;
10723 };
10724 let creases = buffer
10725 .function_body_fold_ranges(0..buffer.len())
10726 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10727 .collect();
10728
10729 self.fold_creases(creases, true, cx);
10730 }
10731
10732 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10733 let mut to_fold = Vec::new();
10734 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10735 let selections = self.selections.all_adjusted(cx);
10736
10737 for selection in selections {
10738 let range = selection.range().sorted();
10739 let buffer_start_row = range.start.row;
10740
10741 if range.start.row != range.end.row {
10742 let mut found = false;
10743 for row in range.start.row..=range.end.row {
10744 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10745 found = true;
10746 to_fold.push(crease);
10747 }
10748 }
10749 if found {
10750 continue;
10751 }
10752 }
10753
10754 for row in (0..=range.start.row).rev() {
10755 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10756 if crease.range().end.row >= buffer_start_row {
10757 to_fold.push(crease);
10758 } else {
10759 break;
10760 }
10761 }
10762 }
10763 }
10764
10765 self.fold_creases(to_fold, true, cx);
10766 }
10767
10768 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10769 let buffer_row = fold_at.buffer_row;
10770 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10771
10772 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10773 let autoscroll = self
10774 .selections
10775 .all::<Point>(cx)
10776 .iter()
10777 .any(|selection| crease.range().overlaps(&selection.range()));
10778
10779 self.fold_creases(vec![crease], autoscroll, cx);
10780 }
10781 }
10782
10783 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10784 if self.is_singleton(cx) {
10785 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10786 let buffer = &display_map.buffer_snapshot;
10787 let selections = self.selections.all::<Point>(cx);
10788 let ranges = selections
10789 .iter()
10790 .map(|s| {
10791 let range = s.display_range(&display_map).sorted();
10792 let mut start = range.start.to_point(&display_map);
10793 let mut end = range.end.to_point(&display_map);
10794 start.column = 0;
10795 end.column = buffer.line_len(MultiBufferRow(end.row));
10796 start..end
10797 })
10798 .collect::<Vec<_>>();
10799
10800 self.unfold_ranges(&ranges, true, true, cx);
10801 } else {
10802 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10803 let mut unfolded_buffers = HashSet::default();
10804 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10805 self.selections
10806 .disjoint_anchors()
10807 .into_iter()
10808 .map(|selection| selection.range()),
10809 ) {
10810 let buffer_id = buffer_snapshot.remote_id();
10811 if unfolded_buffers.insert(buffer_id) {
10812 self.unfold_buffer(buffer_id, cx);
10813 }
10814 }
10815 }
10816 }
10817
10818 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10819 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10820 let selections = self.selections.all::<Point>(cx);
10821 let ranges = selections
10822 .iter()
10823 .map(|s| {
10824 let mut range = s.display_range(&display_map).sorted();
10825 *range.start.column_mut() = 0;
10826 *range.end.column_mut() = display_map.line_len(range.end.row());
10827 let start = range.start.to_point(&display_map);
10828 let end = range.end.to_point(&display_map);
10829 start..end
10830 })
10831 .collect::<Vec<_>>();
10832
10833 self.unfold_ranges(&ranges, true, true, cx);
10834 }
10835
10836 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10837 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10838
10839 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10840 ..Point::new(
10841 unfold_at.buffer_row.0,
10842 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10843 );
10844
10845 let autoscroll = self
10846 .selections
10847 .all::<Point>(cx)
10848 .iter()
10849 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10850
10851 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10852 }
10853
10854 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10855 if self.buffer.read(cx).is_singleton() {
10856 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10857 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10858 } else {
10859 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10860 editor
10861 .update(&mut cx, |editor, cx| {
10862 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10863 editor.unfold_buffer(buffer_id, cx);
10864 }
10865 })
10866 .ok();
10867 });
10868 }
10869 }
10870
10871 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10872 let selections = self.selections.all::<Point>(cx);
10873 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10874 let line_mode = self.selections.line_mode;
10875 let ranges = selections
10876 .into_iter()
10877 .map(|s| {
10878 if line_mode {
10879 let start = Point::new(s.start.row, 0);
10880 let end = Point::new(
10881 s.end.row,
10882 display_map
10883 .buffer_snapshot
10884 .line_len(MultiBufferRow(s.end.row)),
10885 );
10886 Crease::simple(start..end, display_map.fold_placeholder.clone())
10887 } else {
10888 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10889 }
10890 })
10891 .collect::<Vec<_>>();
10892 self.fold_creases(ranges, true, cx);
10893 }
10894
10895 pub fn fold_creases<T: ToOffset + Clone>(
10896 &mut self,
10897 creases: Vec<Crease<T>>,
10898 auto_scroll: bool,
10899 cx: &mut ViewContext<Self>,
10900 ) {
10901 if creases.is_empty() {
10902 return;
10903 }
10904
10905 let mut buffers_affected = HashSet::default();
10906 let multi_buffer = self.buffer().read(cx);
10907 for crease in &creases {
10908 if let Some((_, buffer, _)) =
10909 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10910 {
10911 buffers_affected.insert(buffer.read(cx).remote_id());
10912 };
10913 }
10914
10915 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10916
10917 if auto_scroll {
10918 self.request_autoscroll(Autoscroll::fit(), cx);
10919 }
10920
10921 for buffer_id in buffers_affected {
10922 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10923 }
10924
10925 cx.notify();
10926
10927 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10928 // Clear diagnostics block when folding a range that contains it.
10929 let snapshot = self.snapshot(cx);
10930 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10931 drop(snapshot);
10932 self.active_diagnostics = Some(active_diagnostics);
10933 self.dismiss_diagnostics(cx);
10934 } else {
10935 self.active_diagnostics = Some(active_diagnostics);
10936 }
10937 }
10938
10939 self.scrollbar_marker_state.dirty = true;
10940 }
10941
10942 /// Removes any folds whose ranges intersect any of the given ranges.
10943 pub fn unfold_ranges<T: ToOffset + Clone>(
10944 &mut self,
10945 ranges: &[Range<T>],
10946 inclusive: bool,
10947 auto_scroll: bool,
10948 cx: &mut ViewContext<Self>,
10949 ) {
10950 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10951 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10952 });
10953 }
10954
10955 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10956 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10957 return;
10958 }
10959 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10960 return;
10961 };
10962 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10963 self.display_map
10964 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10965 cx.emit(EditorEvent::BufferFoldToggled {
10966 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10967 folded: true,
10968 });
10969 cx.notify();
10970 }
10971
10972 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10973 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10974 return;
10975 }
10976 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10977 return;
10978 };
10979 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10980 self.display_map.update(cx, |display_map, cx| {
10981 display_map.unfold_buffer(buffer_id, cx);
10982 });
10983 cx.emit(EditorEvent::BufferFoldToggled {
10984 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10985 folded: false,
10986 });
10987 cx.notify();
10988 }
10989
10990 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10991 self.display_map.read(cx).buffer_folded(buffer)
10992 }
10993
10994 /// Removes any folds with the given ranges.
10995 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10996 &mut self,
10997 ranges: &[Range<T>],
10998 type_id: TypeId,
10999 auto_scroll: bool,
11000 cx: &mut ViewContext<Self>,
11001 ) {
11002 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11003 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11004 });
11005 }
11006
11007 fn remove_folds_with<T: ToOffset + Clone>(
11008 &mut self,
11009 ranges: &[Range<T>],
11010 auto_scroll: bool,
11011 cx: &mut ViewContext<Self>,
11012 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11013 ) {
11014 if ranges.is_empty() {
11015 return;
11016 }
11017
11018 let mut buffers_affected = HashSet::default();
11019 let multi_buffer = self.buffer().read(cx);
11020 for range in ranges {
11021 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11022 buffers_affected.insert(buffer.read(cx).remote_id());
11023 };
11024 }
11025
11026 self.display_map.update(cx, update);
11027
11028 if auto_scroll {
11029 self.request_autoscroll(Autoscroll::fit(), cx);
11030 }
11031
11032 for buffer_id in buffers_affected {
11033 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11034 }
11035
11036 cx.notify();
11037 self.scrollbar_marker_state.dirty = true;
11038 self.active_indent_guides_state.dirty = true;
11039 }
11040
11041 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11042 self.display_map.read(cx).fold_placeholder.clone()
11043 }
11044
11045 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11046 if hovered != self.gutter_hovered {
11047 self.gutter_hovered = hovered;
11048 cx.notify();
11049 }
11050 }
11051
11052 pub fn insert_blocks(
11053 &mut self,
11054 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11055 autoscroll: Option<Autoscroll>,
11056 cx: &mut ViewContext<Self>,
11057 ) -> Vec<CustomBlockId> {
11058 let blocks = self
11059 .display_map
11060 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11061 if let Some(autoscroll) = autoscroll {
11062 self.request_autoscroll(autoscroll, cx);
11063 }
11064 cx.notify();
11065 blocks
11066 }
11067
11068 pub fn resize_blocks(
11069 &mut self,
11070 heights: HashMap<CustomBlockId, u32>,
11071 autoscroll: Option<Autoscroll>,
11072 cx: &mut ViewContext<Self>,
11073 ) {
11074 self.display_map
11075 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11076 if let Some(autoscroll) = autoscroll {
11077 self.request_autoscroll(autoscroll, cx);
11078 }
11079 cx.notify();
11080 }
11081
11082 pub fn replace_blocks(
11083 &mut self,
11084 renderers: HashMap<CustomBlockId, RenderBlock>,
11085 autoscroll: Option<Autoscroll>,
11086 cx: &mut ViewContext<Self>,
11087 ) {
11088 self.display_map
11089 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11090 if let Some(autoscroll) = autoscroll {
11091 self.request_autoscroll(autoscroll, cx);
11092 }
11093 cx.notify();
11094 }
11095
11096 pub fn remove_blocks(
11097 &mut self,
11098 block_ids: HashSet<CustomBlockId>,
11099 autoscroll: Option<Autoscroll>,
11100 cx: &mut ViewContext<Self>,
11101 ) {
11102 self.display_map.update(cx, |display_map, cx| {
11103 display_map.remove_blocks(block_ids, cx)
11104 });
11105 if let Some(autoscroll) = autoscroll {
11106 self.request_autoscroll(autoscroll, cx);
11107 }
11108 cx.notify();
11109 }
11110
11111 pub fn row_for_block(
11112 &self,
11113 block_id: CustomBlockId,
11114 cx: &mut ViewContext<Self>,
11115 ) -> Option<DisplayRow> {
11116 self.display_map
11117 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11118 }
11119
11120 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11121 self.focused_block = Some(focused_block);
11122 }
11123
11124 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11125 self.focused_block.take()
11126 }
11127
11128 pub fn insert_creases(
11129 &mut self,
11130 creases: impl IntoIterator<Item = Crease<Anchor>>,
11131 cx: &mut ViewContext<Self>,
11132 ) -> Vec<CreaseId> {
11133 self.display_map
11134 .update(cx, |map, cx| map.insert_creases(creases, cx))
11135 }
11136
11137 pub fn remove_creases(
11138 &mut self,
11139 ids: impl IntoIterator<Item = CreaseId>,
11140 cx: &mut ViewContext<Self>,
11141 ) {
11142 self.display_map
11143 .update(cx, |map, cx| map.remove_creases(ids, cx));
11144 }
11145
11146 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11147 self.display_map
11148 .update(cx, |map, cx| map.snapshot(cx))
11149 .longest_row()
11150 }
11151
11152 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11153 self.display_map
11154 .update(cx, |map, cx| map.snapshot(cx))
11155 .max_point()
11156 }
11157
11158 pub fn text(&self, cx: &AppContext) -> String {
11159 self.buffer.read(cx).read(cx).text()
11160 }
11161
11162 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11163 let text = self.text(cx);
11164 let text = text.trim();
11165
11166 if text.is_empty() {
11167 return None;
11168 }
11169
11170 Some(text.to_string())
11171 }
11172
11173 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11174 self.transact(cx, |this, cx| {
11175 this.buffer
11176 .read(cx)
11177 .as_singleton()
11178 .expect("you can only call set_text on editors for singleton buffers")
11179 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11180 });
11181 }
11182
11183 pub fn display_text(&self, cx: &mut AppContext) -> String {
11184 self.display_map
11185 .update(cx, |map, cx| map.snapshot(cx))
11186 .text()
11187 }
11188
11189 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11190 let mut wrap_guides = smallvec::smallvec![];
11191
11192 if self.show_wrap_guides == Some(false) {
11193 return wrap_guides;
11194 }
11195
11196 let settings = self.buffer.read(cx).settings_at(0, cx);
11197 if settings.show_wrap_guides {
11198 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11199 wrap_guides.push((soft_wrap as usize, true));
11200 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11201 wrap_guides.push((soft_wrap as usize, true));
11202 }
11203 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11204 }
11205
11206 wrap_guides
11207 }
11208
11209 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11210 let settings = self.buffer.read(cx).settings_at(0, cx);
11211 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11212 match mode {
11213 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11214 SoftWrap::None
11215 }
11216 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11217 language_settings::SoftWrap::PreferredLineLength => {
11218 SoftWrap::Column(settings.preferred_line_length)
11219 }
11220 language_settings::SoftWrap::Bounded => {
11221 SoftWrap::Bounded(settings.preferred_line_length)
11222 }
11223 }
11224 }
11225
11226 pub fn set_soft_wrap_mode(
11227 &mut self,
11228 mode: language_settings::SoftWrap,
11229 cx: &mut ViewContext<Self>,
11230 ) {
11231 self.soft_wrap_mode_override = Some(mode);
11232 cx.notify();
11233 }
11234
11235 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11236 self.text_style_refinement = Some(style);
11237 }
11238
11239 /// called by the Element so we know what style we were most recently rendered with.
11240 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11241 let rem_size = cx.rem_size();
11242 self.display_map.update(cx, |map, cx| {
11243 map.set_font(
11244 style.text.font(),
11245 style.text.font_size.to_pixels(rem_size),
11246 cx,
11247 )
11248 });
11249 self.style = Some(style);
11250 }
11251
11252 pub fn style(&self) -> Option<&EditorStyle> {
11253 self.style.as_ref()
11254 }
11255
11256 // Called by the element. This method is not designed to be called outside of the editor
11257 // element's layout code because it does not notify when rewrapping is computed synchronously.
11258 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11259 self.display_map
11260 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11261 }
11262
11263 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11264 if self.soft_wrap_mode_override.is_some() {
11265 self.soft_wrap_mode_override.take();
11266 } else {
11267 let soft_wrap = match self.soft_wrap_mode(cx) {
11268 SoftWrap::GitDiff => return,
11269 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11270 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11271 language_settings::SoftWrap::None
11272 }
11273 };
11274 self.soft_wrap_mode_override = Some(soft_wrap);
11275 }
11276 cx.notify();
11277 }
11278
11279 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11280 let Some(workspace) = self.workspace() else {
11281 return;
11282 };
11283 let fs = workspace.read(cx).app_state().fs.clone();
11284 let current_show = TabBarSettings::get_global(cx).show;
11285 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11286 setting.show = Some(!current_show);
11287 });
11288 }
11289
11290 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11291 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11292 self.buffer
11293 .read(cx)
11294 .settings_at(0, cx)
11295 .indent_guides
11296 .enabled
11297 });
11298 self.show_indent_guides = Some(!currently_enabled);
11299 cx.notify();
11300 }
11301
11302 fn should_show_indent_guides(&self) -> Option<bool> {
11303 self.show_indent_guides
11304 }
11305
11306 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11307 let mut editor_settings = EditorSettings::get_global(cx).clone();
11308 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11309 EditorSettings::override_global(editor_settings, cx);
11310 }
11311
11312 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11313 self.use_relative_line_numbers
11314 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11315 }
11316
11317 pub fn toggle_relative_line_numbers(
11318 &mut self,
11319 _: &ToggleRelativeLineNumbers,
11320 cx: &mut ViewContext<Self>,
11321 ) {
11322 let is_relative = self.should_use_relative_line_numbers(cx);
11323 self.set_relative_line_number(Some(!is_relative), cx)
11324 }
11325
11326 pub fn set_relative_line_number(
11327 &mut self,
11328 is_relative: Option<bool>,
11329 cx: &mut ViewContext<Self>,
11330 ) {
11331 self.use_relative_line_numbers = is_relative;
11332 cx.notify();
11333 }
11334
11335 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11336 self.show_gutter = show_gutter;
11337 cx.notify();
11338 }
11339
11340 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11341 self.show_scrollbars = show_scrollbars;
11342 cx.notify();
11343 }
11344
11345 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11346 self.show_line_numbers = Some(show_line_numbers);
11347 cx.notify();
11348 }
11349
11350 pub fn set_show_git_diff_gutter(
11351 &mut self,
11352 show_git_diff_gutter: bool,
11353 cx: &mut ViewContext<Self>,
11354 ) {
11355 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11356 cx.notify();
11357 }
11358
11359 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11360 self.show_code_actions = Some(show_code_actions);
11361 cx.notify();
11362 }
11363
11364 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11365 self.show_runnables = Some(show_runnables);
11366 cx.notify();
11367 }
11368
11369 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11370 if self.display_map.read(cx).masked != masked {
11371 self.display_map.update(cx, |map, _| map.masked = masked);
11372 }
11373 cx.notify()
11374 }
11375
11376 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11377 self.show_wrap_guides = Some(show_wrap_guides);
11378 cx.notify();
11379 }
11380
11381 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11382 self.show_indent_guides = Some(show_indent_guides);
11383 cx.notify();
11384 }
11385
11386 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11387 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11388 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11389 if let Some(dir) = file.abs_path(cx).parent() {
11390 return Some(dir.to_owned());
11391 }
11392 }
11393
11394 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11395 return Some(project_path.path.to_path_buf());
11396 }
11397 }
11398
11399 None
11400 }
11401
11402 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11403 self.active_excerpt(cx)?
11404 .1
11405 .read(cx)
11406 .file()
11407 .and_then(|f| f.as_local())
11408 }
11409
11410 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11411 if let Some(target) = self.target_file(cx) {
11412 cx.reveal_path(&target.abs_path(cx));
11413 }
11414 }
11415
11416 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11417 if let Some(file) = self.target_file(cx) {
11418 if let Some(path) = file.abs_path(cx).to_str() {
11419 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11420 }
11421 }
11422 }
11423
11424 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11425 if let Some(file) = self.target_file(cx) {
11426 if let Some(path) = file.path().to_str() {
11427 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11428 }
11429 }
11430 }
11431
11432 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11433 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11434
11435 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11436 self.start_git_blame(true, cx);
11437 }
11438
11439 cx.notify();
11440 }
11441
11442 pub fn toggle_git_blame_inline(
11443 &mut self,
11444 _: &ToggleGitBlameInline,
11445 cx: &mut ViewContext<Self>,
11446 ) {
11447 self.toggle_git_blame_inline_internal(true, cx);
11448 cx.notify();
11449 }
11450
11451 pub fn git_blame_inline_enabled(&self) -> bool {
11452 self.git_blame_inline_enabled
11453 }
11454
11455 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11456 self.show_selection_menu = self
11457 .show_selection_menu
11458 .map(|show_selections_menu| !show_selections_menu)
11459 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11460
11461 cx.notify();
11462 }
11463
11464 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11465 self.show_selection_menu
11466 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11467 }
11468
11469 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11470 if let Some(project) = self.project.as_ref() {
11471 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11472 return;
11473 };
11474
11475 if buffer.read(cx).file().is_none() {
11476 return;
11477 }
11478
11479 let focused = self.focus_handle(cx).contains_focused(cx);
11480
11481 let project = project.clone();
11482 let blame =
11483 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11484 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11485 self.blame = Some(blame);
11486 }
11487 }
11488
11489 fn toggle_git_blame_inline_internal(
11490 &mut self,
11491 user_triggered: bool,
11492 cx: &mut ViewContext<Self>,
11493 ) {
11494 if self.git_blame_inline_enabled {
11495 self.git_blame_inline_enabled = false;
11496 self.show_git_blame_inline = false;
11497 self.show_git_blame_inline_delay_task.take();
11498 } else {
11499 self.git_blame_inline_enabled = true;
11500 self.start_git_blame_inline(user_triggered, cx);
11501 }
11502
11503 cx.notify();
11504 }
11505
11506 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11507 self.start_git_blame(user_triggered, cx);
11508
11509 if ProjectSettings::get_global(cx)
11510 .git
11511 .inline_blame_delay()
11512 .is_some()
11513 {
11514 self.start_inline_blame_timer(cx);
11515 } else {
11516 self.show_git_blame_inline = true
11517 }
11518 }
11519
11520 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11521 self.blame.as_ref()
11522 }
11523
11524 pub fn show_git_blame_gutter(&self) -> bool {
11525 self.show_git_blame_gutter
11526 }
11527
11528 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11529 self.show_git_blame_gutter && self.has_blame_entries(cx)
11530 }
11531
11532 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11533 self.show_git_blame_inline
11534 && self.focus_handle.is_focused(cx)
11535 && !self.newest_selection_head_on_empty_line(cx)
11536 && self.has_blame_entries(cx)
11537 }
11538
11539 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11540 self.blame()
11541 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11542 }
11543
11544 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11545 let cursor_anchor = self.selections.newest_anchor().head();
11546
11547 let snapshot = self.buffer.read(cx).snapshot(cx);
11548 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11549
11550 snapshot.line_len(buffer_row) == 0
11551 }
11552
11553 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11554 let buffer_and_selection = maybe!({
11555 let selection = self.selections.newest::<Point>(cx);
11556 let selection_range = selection.range();
11557
11558 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11559 (buffer, selection_range.start.row..selection_range.end.row)
11560 } else {
11561 let multi_buffer = self.buffer().read(cx);
11562 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11563 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11564
11565 let (excerpt, range) = if selection.reversed {
11566 buffer_ranges.first()
11567 } else {
11568 buffer_ranges.last()
11569 }?;
11570
11571 let snapshot = excerpt.buffer();
11572 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11573 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11574 (
11575 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11576 selection,
11577 )
11578 };
11579
11580 Some((buffer, selection))
11581 });
11582
11583 let Some((buffer, selection)) = buffer_and_selection else {
11584 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11585 };
11586
11587 let Some(project) = self.project.as_ref() else {
11588 return Task::ready(Err(anyhow!("editor does not have project")));
11589 };
11590
11591 project.update(cx, |project, cx| {
11592 project.get_permalink_to_line(&buffer, selection, cx)
11593 })
11594 }
11595
11596 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11597 let permalink_task = self.get_permalink_to_line(cx);
11598 let workspace = self.workspace();
11599
11600 cx.spawn(|_, mut cx| async move {
11601 match permalink_task.await {
11602 Ok(permalink) => {
11603 cx.update(|cx| {
11604 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11605 })
11606 .ok();
11607 }
11608 Err(err) => {
11609 let message = format!("Failed to copy permalink: {err}");
11610
11611 Err::<(), anyhow::Error>(err).log_err();
11612
11613 if let Some(workspace) = workspace {
11614 workspace
11615 .update(&mut cx, |workspace, cx| {
11616 struct CopyPermalinkToLine;
11617
11618 workspace.show_toast(
11619 Toast::new(
11620 NotificationId::unique::<CopyPermalinkToLine>(),
11621 message,
11622 ),
11623 cx,
11624 )
11625 })
11626 .ok();
11627 }
11628 }
11629 }
11630 })
11631 .detach();
11632 }
11633
11634 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11635 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11636 if let Some(file) = self.target_file(cx) {
11637 if let Some(path) = file.path().to_str() {
11638 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11639 }
11640 }
11641 }
11642
11643 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11644 let permalink_task = self.get_permalink_to_line(cx);
11645 let workspace = self.workspace();
11646
11647 cx.spawn(|_, mut cx| async move {
11648 match permalink_task.await {
11649 Ok(permalink) => {
11650 cx.update(|cx| {
11651 cx.open_url(permalink.as_ref());
11652 })
11653 .ok();
11654 }
11655 Err(err) => {
11656 let message = format!("Failed to open permalink: {err}");
11657
11658 Err::<(), anyhow::Error>(err).log_err();
11659
11660 if let Some(workspace) = workspace {
11661 workspace
11662 .update(&mut cx, |workspace, cx| {
11663 struct OpenPermalinkToLine;
11664
11665 workspace.show_toast(
11666 Toast::new(
11667 NotificationId::unique::<OpenPermalinkToLine>(),
11668 message,
11669 ),
11670 cx,
11671 )
11672 })
11673 .ok();
11674 }
11675 }
11676 }
11677 })
11678 .detach();
11679 }
11680
11681 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11682 self.insert_uuid(UuidVersion::V4, cx);
11683 }
11684
11685 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11686 self.insert_uuid(UuidVersion::V7, cx);
11687 }
11688
11689 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11690 self.transact(cx, |this, cx| {
11691 let edits = this
11692 .selections
11693 .all::<Point>(cx)
11694 .into_iter()
11695 .map(|selection| {
11696 let uuid = match version {
11697 UuidVersion::V4 => uuid::Uuid::new_v4(),
11698 UuidVersion::V7 => uuid::Uuid::now_v7(),
11699 };
11700
11701 (selection.range(), uuid.to_string())
11702 });
11703 this.edit(edits, cx);
11704 this.refresh_inline_completion(true, false, cx);
11705 });
11706 }
11707
11708 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11709 /// last highlight added will be used.
11710 ///
11711 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11712 pub fn highlight_rows<T: 'static>(
11713 &mut self,
11714 range: Range<Anchor>,
11715 color: Hsla,
11716 should_autoscroll: bool,
11717 cx: &mut ViewContext<Self>,
11718 ) {
11719 let snapshot = self.buffer().read(cx).snapshot(cx);
11720 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11721 let ix = row_highlights.binary_search_by(|highlight| {
11722 Ordering::Equal
11723 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11724 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11725 });
11726
11727 if let Err(mut ix) = ix {
11728 let index = post_inc(&mut self.highlight_order);
11729
11730 // If this range intersects with the preceding highlight, then merge it with
11731 // the preceding highlight. Otherwise insert a new highlight.
11732 let mut merged = false;
11733 if ix > 0 {
11734 let prev_highlight = &mut row_highlights[ix - 1];
11735 if prev_highlight
11736 .range
11737 .end
11738 .cmp(&range.start, &snapshot)
11739 .is_ge()
11740 {
11741 ix -= 1;
11742 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11743 prev_highlight.range.end = range.end;
11744 }
11745 merged = true;
11746 prev_highlight.index = index;
11747 prev_highlight.color = color;
11748 prev_highlight.should_autoscroll = should_autoscroll;
11749 }
11750 }
11751
11752 if !merged {
11753 row_highlights.insert(
11754 ix,
11755 RowHighlight {
11756 range: range.clone(),
11757 index,
11758 color,
11759 should_autoscroll,
11760 },
11761 );
11762 }
11763
11764 // If any of the following highlights intersect with this one, merge them.
11765 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11766 let highlight = &row_highlights[ix];
11767 if next_highlight
11768 .range
11769 .start
11770 .cmp(&highlight.range.end, &snapshot)
11771 .is_le()
11772 {
11773 if next_highlight
11774 .range
11775 .end
11776 .cmp(&highlight.range.end, &snapshot)
11777 .is_gt()
11778 {
11779 row_highlights[ix].range.end = next_highlight.range.end;
11780 }
11781 row_highlights.remove(ix + 1);
11782 } else {
11783 break;
11784 }
11785 }
11786 }
11787 }
11788
11789 /// Remove any highlighted row ranges of the given type that intersect the
11790 /// given ranges.
11791 pub fn remove_highlighted_rows<T: 'static>(
11792 &mut self,
11793 ranges_to_remove: Vec<Range<Anchor>>,
11794 cx: &mut ViewContext<Self>,
11795 ) {
11796 let snapshot = self.buffer().read(cx).snapshot(cx);
11797 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11798 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11799 row_highlights.retain(|highlight| {
11800 while let Some(range_to_remove) = ranges_to_remove.peek() {
11801 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11802 Ordering::Less | Ordering::Equal => {
11803 ranges_to_remove.next();
11804 }
11805 Ordering::Greater => {
11806 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11807 Ordering::Less | Ordering::Equal => {
11808 return false;
11809 }
11810 Ordering::Greater => break,
11811 }
11812 }
11813 }
11814 }
11815
11816 true
11817 })
11818 }
11819
11820 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11821 pub fn clear_row_highlights<T: 'static>(&mut self) {
11822 self.highlighted_rows.remove(&TypeId::of::<T>());
11823 }
11824
11825 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11826 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11827 self.highlighted_rows
11828 .get(&TypeId::of::<T>())
11829 .map_or(&[] as &[_], |vec| vec.as_slice())
11830 .iter()
11831 .map(|highlight| (highlight.range.clone(), highlight.color))
11832 }
11833
11834 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11835 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11836 /// Allows to ignore certain kinds of highlights.
11837 pub fn highlighted_display_rows(
11838 &mut self,
11839 cx: &mut WindowContext,
11840 ) -> BTreeMap<DisplayRow, Hsla> {
11841 let snapshot = self.snapshot(cx);
11842 let mut used_highlight_orders = HashMap::default();
11843 self.highlighted_rows
11844 .iter()
11845 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11846 .fold(
11847 BTreeMap::<DisplayRow, Hsla>::new(),
11848 |mut unique_rows, highlight| {
11849 let start = highlight.range.start.to_display_point(&snapshot);
11850 let end = highlight.range.end.to_display_point(&snapshot);
11851 let start_row = start.row().0;
11852 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11853 && end.column() == 0
11854 {
11855 end.row().0.saturating_sub(1)
11856 } else {
11857 end.row().0
11858 };
11859 for row in start_row..=end_row {
11860 let used_index =
11861 used_highlight_orders.entry(row).or_insert(highlight.index);
11862 if highlight.index >= *used_index {
11863 *used_index = highlight.index;
11864 unique_rows.insert(DisplayRow(row), highlight.color);
11865 }
11866 }
11867 unique_rows
11868 },
11869 )
11870 }
11871
11872 pub fn highlighted_display_row_for_autoscroll(
11873 &self,
11874 snapshot: &DisplaySnapshot,
11875 ) -> Option<DisplayRow> {
11876 self.highlighted_rows
11877 .values()
11878 .flat_map(|highlighted_rows| highlighted_rows.iter())
11879 .filter_map(|highlight| {
11880 if highlight.should_autoscroll {
11881 Some(highlight.range.start.to_display_point(snapshot).row())
11882 } else {
11883 None
11884 }
11885 })
11886 .min()
11887 }
11888
11889 pub fn set_search_within_ranges(
11890 &mut self,
11891 ranges: &[Range<Anchor>],
11892 cx: &mut ViewContext<Self>,
11893 ) {
11894 self.highlight_background::<SearchWithinRange>(
11895 ranges,
11896 |colors| colors.editor_document_highlight_read_background,
11897 cx,
11898 )
11899 }
11900
11901 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11902 self.breadcrumb_header = Some(new_header);
11903 }
11904
11905 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11906 self.clear_background_highlights::<SearchWithinRange>(cx);
11907 }
11908
11909 pub fn highlight_background<T: 'static>(
11910 &mut self,
11911 ranges: &[Range<Anchor>],
11912 color_fetcher: fn(&ThemeColors) -> Hsla,
11913 cx: &mut ViewContext<Self>,
11914 ) {
11915 self.background_highlights
11916 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11917 self.scrollbar_marker_state.dirty = true;
11918 cx.notify();
11919 }
11920
11921 pub fn clear_background_highlights<T: 'static>(
11922 &mut self,
11923 cx: &mut ViewContext<Self>,
11924 ) -> Option<BackgroundHighlight> {
11925 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11926 if !text_highlights.1.is_empty() {
11927 self.scrollbar_marker_state.dirty = true;
11928 cx.notify();
11929 }
11930 Some(text_highlights)
11931 }
11932
11933 pub fn highlight_gutter<T: 'static>(
11934 &mut self,
11935 ranges: &[Range<Anchor>],
11936 color_fetcher: fn(&AppContext) -> Hsla,
11937 cx: &mut ViewContext<Self>,
11938 ) {
11939 self.gutter_highlights
11940 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11941 cx.notify();
11942 }
11943
11944 pub fn clear_gutter_highlights<T: 'static>(
11945 &mut self,
11946 cx: &mut ViewContext<Self>,
11947 ) -> Option<GutterHighlight> {
11948 cx.notify();
11949 self.gutter_highlights.remove(&TypeId::of::<T>())
11950 }
11951
11952 #[cfg(feature = "test-support")]
11953 pub fn all_text_background_highlights(
11954 &mut self,
11955 cx: &mut ViewContext<Self>,
11956 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11957 let snapshot = self.snapshot(cx);
11958 let buffer = &snapshot.buffer_snapshot;
11959 let start = buffer.anchor_before(0);
11960 let end = buffer.anchor_after(buffer.len());
11961 let theme = cx.theme().colors();
11962 self.background_highlights_in_range(start..end, &snapshot, theme)
11963 }
11964
11965 #[cfg(feature = "test-support")]
11966 pub fn search_background_highlights(
11967 &mut self,
11968 cx: &mut ViewContext<Self>,
11969 ) -> Vec<Range<Point>> {
11970 let snapshot = self.buffer().read(cx).snapshot(cx);
11971
11972 let highlights = self
11973 .background_highlights
11974 .get(&TypeId::of::<items::BufferSearchHighlights>());
11975
11976 if let Some((_color, ranges)) = highlights {
11977 ranges
11978 .iter()
11979 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11980 .collect_vec()
11981 } else {
11982 vec![]
11983 }
11984 }
11985
11986 fn document_highlights_for_position<'a>(
11987 &'a self,
11988 position: Anchor,
11989 buffer: &'a MultiBufferSnapshot,
11990 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11991 let read_highlights = self
11992 .background_highlights
11993 .get(&TypeId::of::<DocumentHighlightRead>())
11994 .map(|h| &h.1);
11995 let write_highlights = self
11996 .background_highlights
11997 .get(&TypeId::of::<DocumentHighlightWrite>())
11998 .map(|h| &h.1);
11999 let left_position = position.bias_left(buffer);
12000 let right_position = position.bias_right(buffer);
12001 read_highlights
12002 .into_iter()
12003 .chain(write_highlights)
12004 .flat_map(move |ranges| {
12005 let start_ix = match ranges.binary_search_by(|probe| {
12006 let cmp = probe.end.cmp(&left_position, buffer);
12007 if cmp.is_ge() {
12008 Ordering::Greater
12009 } else {
12010 Ordering::Less
12011 }
12012 }) {
12013 Ok(i) | Err(i) => i,
12014 };
12015
12016 ranges[start_ix..]
12017 .iter()
12018 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12019 })
12020 }
12021
12022 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12023 self.background_highlights
12024 .get(&TypeId::of::<T>())
12025 .map_or(false, |(_, highlights)| !highlights.is_empty())
12026 }
12027
12028 pub fn background_highlights_in_range(
12029 &self,
12030 search_range: Range<Anchor>,
12031 display_snapshot: &DisplaySnapshot,
12032 theme: &ThemeColors,
12033 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12034 let mut results = Vec::new();
12035 for (color_fetcher, ranges) in self.background_highlights.values() {
12036 let color = color_fetcher(theme);
12037 let start_ix = match ranges.binary_search_by(|probe| {
12038 let cmp = probe
12039 .end
12040 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12041 if cmp.is_gt() {
12042 Ordering::Greater
12043 } else {
12044 Ordering::Less
12045 }
12046 }) {
12047 Ok(i) | Err(i) => i,
12048 };
12049 for range in &ranges[start_ix..] {
12050 if range
12051 .start
12052 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12053 .is_ge()
12054 {
12055 break;
12056 }
12057
12058 let start = range.start.to_display_point(display_snapshot);
12059 let end = range.end.to_display_point(display_snapshot);
12060 results.push((start..end, color))
12061 }
12062 }
12063 results
12064 }
12065
12066 pub fn background_highlight_row_ranges<T: 'static>(
12067 &self,
12068 search_range: Range<Anchor>,
12069 display_snapshot: &DisplaySnapshot,
12070 count: usize,
12071 ) -> Vec<RangeInclusive<DisplayPoint>> {
12072 let mut results = Vec::new();
12073 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12074 return vec![];
12075 };
12076
12077 let start_ix = match ranges.binary_search_by(|probe| {
12078 let cmp = probe
12079 .end
12080 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12081 if cmp.is_gt() {
12082 Ordering::Greater
12083 } else {
12084 Ordering::Less
12085 }
12086 }) {
12087 Ok(i) | Err(i) => i,
12088 };
12089 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12090 if let (Some(start_display), Some(end_display)) = (start, end) {
12091 results.push(
12092 start_display.to_display_point(display_snapshot)
12093 ..=end_display.to_display_point(display_snapshot),
12094 );
12095 }
12096 };
12097 let mut start_row: Option<Point> = None;
12098 let mut end_row: Option<Point> = None;
12099 if ranges.len() > count {
12100 return Vec::new();
12101 }
12102 for range in &ranges[start_ix..] {
12103 if range
12104 .start
12105 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12106 .is_ge()
12107 {
12108 break;
12109 }
12110 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12111 if let Some(current_row) = &end_row {
12112 if end.row == current_row.row {
12113 continue;
12114 }
12115 }
12116 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12117 if start_row.is_none() {
12118 assert_eq!(end_row, None);
12119 start_row = Some(start);
12120 end_row = Some(end);
12121 continue;
12122 }
12123 if let Some(current_end) = end_row.as_mut() {
12124 if start.row > current_end.row + 1 {
12125 push_region(start_row, end_row);
12126 start_row = Some(start);
12127 end_row = Some(end);
12128 } else {
12129 // Merge two hunks.
12130 *current_end = end;
12131 }
12132 } else {
12133 unreachable!();
12134 }
12135 }
12136 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12137 push_region(start_row, end_row);
12138 results
12139 }
12140
12141 pub fn gutter_highlights_in_range(
12142 &self,
12143 search_range: Range<Anchor>,
12144 display_snapshot: &DisplaySnapshot,
12145 cx: &AppContext,
12146 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12147 let mut results = Vec::new();
12148 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12149 let color = color_fetcher(cx);
12150 let start_ix = match ranges.binary_search_by(|probe| {
12151 let cmp = probe
12152 .end
12153 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12154 if cmp.is_gt() {
12155 Ordering::Greater
12156 } else {
12157 Ordering::Less
12158 }
12159 }) {
12160 Ok(i) | Err(i) => i,
12161 };
12162 for range in &ranges[start_ix..] {
12163 if range
12164 .start
12165 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12166 .is_ge()
12167 {
12168 break;
12169 }
12170
12171 let start = range.start.to_display_point(display_snapshot);
12172 let end = range.end.to_display_point(display_snapshot);
12173 results.push((start..end, color))
12174 }
12175 }
12176 results
12177 }
12178
12179 /// Get the text ranges corresponding to the redaction query
12180 pub fn redacted_ranges(
12181 &self,
12182 search_range: Range<Anchor>,
12183 display_snapshot: &DisplaySnapshot,
12184 cx: &WindowContext,
12185 ) -> Vec<Range<DisplayPoint>> {
12186 display_snapshot
12187 .buffer_snapshot
12188 .redacted_ranges(search_range, |file| {
12189 if let Some(file) = file {
12190 file.is_private()
12191 && EditorSettings::get(
12192 Some(SettingsLocation {
12193 worktree_id: file.worktree_id(cx),
12194 path: file.path().as_ref(),
12195 }),
12196 cx,
12197 )
12198 .redact_private_values
12199 } else {
12200 false
12201 }
12202 })
12203 .map(|range| {
12204 range.start.to_display_point(display_snapshot)
12205 ..range.end.to_display_point(display_snapshot)
12206 })
12207 .collect()
12208 }
12209
12210 pub fn highlight_text<T: 'static>(
12211 &mut self,
12212 ranges: Vec<Range<Anchor>>,
12213 style: HighlightStyle,
12214 cx: &mut ViewContext<Self>,
12215 ) {
12216 self.display_map.update(cx, |map, _| {
12217 map.highlight_text(TypeId::of::<T>(), ranges, style)
12218 });
12219 cx.notify();
12220 }
12221
12222 pub(crate) fn highlight_inlays<T: 'static>(
12223 &mut self,
12224 highlights: Vec<InlayHighlight>,
12225 style: HighlightStyle,
12226 cx: &mut ViewContext<Self>,
12227 ) {
12228 self.display_map.update(cx, |map, _| {
12229 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12230 });
12231 cx.notify();
12232 }
12233
12234 pub fn text_highlights<'a, T: 'static>(
12235 &'a self,
12236 cx: &'a AppContext,
12237 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12238 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12239 }
12240
12241 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12242 let cleared = self
12243 .display_map
12244 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12245 if cleared {
12246 cx.notify();
12247 }
12248 }
12249
12250 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12251 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12252 && self.focus_handle.is_focused(cx)
12253 }
12254
12255 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12256 self.show_cursor_when_unfocused = is_enabled;
12257 cx.notify();
12258 }
12259
12260 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12261 self.project
12262 .as_ref()
12263 .map(|project| project.read(cx).lsp_store())
12264 }
12265
12266 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12267 cx.notify();
12268 }
12269
12270 fn on_buffer_event(
12271 &mut self,
12272 multibuffer: Model<MultiBuffer>,
12273 event: &multi_buffer::Event,
12274 cx: &mut ViewContext<Self>,
12275 ) {
12276 match event {
12277 multi_buffer::Event::Edited {
12278 singleton_buffer_edited,
12279 edited_buffer: buffer_edited,
12280 } => {
12281 self.scrollbar_marker_state.dirty = true;
12282 self.active_indent_guides_state.dirty = true;
12283 self.refresh_active_diagnostics(cx);
12284 self.refresh_code_actions(cx);
12285 if self.has_active_inline_completion() {
12286 self.update_visible_inline_completion(cx);
12287 }
12288 if let Some(buffer) = buffer_edited {
12289 let buffer_id = buffer.read(cx).remote_id();
12290 if !self.registered_buffers.contains_key(&buffer_id) {
12291 if let Some(lsp_store) = self.lsp_store(cx) {
12292 lsp_store.update(cx, |lsp_store, cx| {
12293 self.registered_buffers.insert(
12294 buffer_id,
12295 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12296 );
12297 })
12298 }
12299 }
12300 }
12301 cx.emit(EditorEvent::BufferEdited);
12302 cx.emit(SearchEvent::MatchesInvalidated);
12303 if *singleton_buffer_edited {
12304 if let Some(project) = &self.project {
12305 let project = project.read(cx);
12306 #[allow(clippy::mutable_key_type)]
12307 let languages_affected = multibuffer
12308 .read(cx)
12309 .all_buffers()
12310 .into_iter()
12311 .filter_map(|buffer| {
12312 let buffer = buffer.read(cx);
12313 let language = buffer.language()?;
12314 if project.is_local()
12315 && project
12316 .language_servers_for_local_buffer(buffer, cx)
12317 .count()
12318 == 0
12319 {
12320 None
12321 } else {
12322 Some(language)
12323 }
12324 })
12325 .cloned()
12326 .collect::<HashSet<_>>();
12327 if !languages_affected.is_empty() {
12328 self.refresh_inlay_hints(
12329 InlayHintRefreshReason::BufferEdited(languages_affected),
12330 cx,
12331 );
12332 }
12333 }
12334 }
12335
12336 let Some(project) = &self.project else { return };
12337 let (telemetry, is_via_ssh) = {
12338 let project = project.read(cx);
12339 let telemetry = project.client().telemetry().clone();
12340 let is_via_ssh = project.is_via_ssh();
12341 (telemetry, is_via_ssh)
12342 };
12343 refresh_linked_ranges(self, cx);
12344 telemetry.log_edit_event("editor", is_via_ssh);
12345 }
12346 multi_buffer::Event::ExcerptsAdded {
12347 buffer,
12348 predecessor,
12349 excerpts,
12350 } => {
12351 self.tasks_update_task = Some(self.refresh_runnables(cx));
12352 let buffer_id = buffer.read(cx).remote_id();
12353 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12354 if let Some(project) = &self.project {
12355 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12356 }
12357 }
12358 cx.emit(EditorEvent::ExcerptsAdded {
12359 buffer: buffer.clone(),
12360 predecessor: *predecessor,
12361 excerpts: excerpts.clone(),
12362 });
12363 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12364 }
12365 multi_buffer::Event::ExcerptsRemoved { ids } => {
12366 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12367 let buffer = self.buffer.read(cx);
12368 self.registered_buffers
12369 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12370 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12371 }
12372 multi_buffer::Event::ExcerptsEdited { ids } => {
12373 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12374 }
12375 multi_buffer::Event::ExcerptsExpanded { ids } => {
12376 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12377 }
12378 multi_buffer::Event::Reparsed(buffer_id) => {
12379 self.tasks_update_task = Some(self.refresh_runnables(cx));
12380
12381 cx.emit(EditorEvent::Reparsed(*buffer_id));
12382 }
12383 multi_buffer::Event::LanguageChanged(buffer_id) => {
12384 linked_editing_ranges::refresh_linked_ranges(self, cx);
12385 cx.emit(EditorEvent::Reparsed(*buffer_id));
12386 cx.notify();
12387 }
12388 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12389 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12390 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12391 cx.emit(EditorEvent::TitleChanged)
12392 }
12393 // multi_buffer::Event::DiffBaseChanged => {
12394 // self.scrollbar_marker_state.dirty = true;
12395 // cx.emit(EditorEvent::DiffBaseChanged);
12396 // cx.notify();
12397 // }
12398 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12399 multi_buffer::Event::DiagnosticsUpdated => {
12400 self.refresh_active_diagnostics(cx);
12401 self.scrollbar_marker_state.dirty = true;
12402 cx.notify();
12403 }
12404 _ => {}
12405 };
12406 }
12407
12408 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12409 cx.notify();
12410 }
12411
12412 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12413 self.tasks_update_task = Some(self.refresh_runnables(cx));
12414 self.refresh_inline_completion(true, false, cx);
12415 self.refresh_inlay_hints(
12416 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12417 self.selections.newest_anchor().head(),
12418 &self.buffer.read(cx).snapshot(cx),
12419 cx,
12420 )),
12421 cx,
12422 );
12423
12424 let old_cursor_shape = self.cursor_shape;
12425
12426 {
12427 let editor_settings = EditorSettings::get_global(cx);
12428 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12429 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12430 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12431 }
12432
12433 if old_cursor_shape != self.cursor_shape {
12434 cx.emit(EditorEvent::CursorShapeChanged);
12435 }
12436
12437 let project_settings = ProjectSettings::get_global(cx);
12438 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12439
12440 if self.mode == EditorMode::Full {
12441 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12442 if self.git_blame_inline_enabled != inline_blame_enabled {
12443 self.toggle_git_blame_inline_internal(false, cx);
12444 }
12445 }
12446
12447 cx.notify();
12448 }
12449
12450 pub fn set_searchable(&mut self, searchable: bool) {
12451 self.searchable = searchable;
12452 }
12453
12454 pub fn searchable(&self) -> bool {
12455 self.searchable
12456 }
12457
12458 fn open_proposed_changes_editor(
12459 &mut self,
12460 _: &OpenProposedChangesEditor,
12461 cx: &mut ViewContext<Self>,
12462 ) {
12463 let Some(workspace) = self.workspace() else {
12464 cx.propagate();
12465 return;
12466 };
12467
12468 let selections = self.selections.all::<usize>(cx);
12469 let multi_buffer = self.buffer.read(cx);
12470 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12471 let mut new_selections_by_buffer = HashMap::default();
12472 for selection in selections {
12473 for (excerpt, range) in
12474 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12475 {
12476 let mut range = range.to_point(excerpt.buffer());
12477 range.start.column = 0;
12478 range.end.column = excerpt.buffer().line_len(range.end.row);
12479 new_selections_by_buffer
12480 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12481 .or_insert(Vec::new())
12482 .push(range)
12483 }
12484 }
12485
12486 let proposed_changes_buffers = new_selections_by_buffer
12487 .into_iter()
12488 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12489 .collect::<Vec<_>>();
12490 let proposed_changes_editor = cx.new_view(|cx| {
12491 ProposedChangesEditor::new(
12492 "Proposed changes",
12493 proposed_changes_buffers,
12494 self.project.clone(),
12495 cx,
12496 )
12497 });
12498
12499 cx.window_context().defer(move |cx| {
12500 workspace.update(cx, |workspace, cx| {
12501 workspace.active_pane().update(cx, |pane, cx| {
12502 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12503 });
12504 });
12505 });
12506 }
12507
12508 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12509 self.open_excerpts_common(None, true, cx)
12510 }
12511
12512 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12513 self.open_excerpts_common(None, false, cx)
12514 }
12515
12516 fn open_excerpts_common(
12517 &mut self,
12518 jump_data: Option<JumpData>,
12519 split: bool,
12520 cx: &mut ViewContext<Self>,
12521 ) {
12522 let Some(workspace) = self.workspace() else {
12523 cx.propagate();
12524 return;
12525 };
12526
12527 if self.buffer.read(cx).is_singleton() {
12528 cx.propagate();
12529 return;
12530 }
12531
12532 let mut new_selections_by_buffer = HashMap::default();
12533 match &jump_data {
12534 Some(JumpData::MultiBufferPoint {
12535 excerpt_id,
12536 position,
12537 anchor,
12538 line_offset_from_top,
12539 }) => {
12540 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12541 if let Some(buffer) = multi_buffer_snapshot
12542 .buffer_id_for_excerpt(*excerpt_id)
12543 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12544 {
12545 let buffer_snapshot = buffer.read(cx).snapshot();
12546 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12547 language::ToPoint::to_point(anchor, &buffer_snapshot)
12548 } else {
12549 buffer_snapshot.clip_point(*position, Bias::Left)
12550 };
12551 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12552 new_selections_by_buffer.insert(
12553 buffer,
12554 (
12555 vec![jump_to_offset..jump_to_offset],
12556 Some(*line_offset_from_top),
12557 ),
12558 );
12559 }
12560 }
12561 Some(JumpData::MultiBufferRow {
12562 row,
12563 line_offset_from_top,
12564 }) => {
12565 let point = MultiBufferPoint::new(row.0, 0);
12566 if let Some((buffer, buffer_point, _)) =
12567 self.buffer.read(cx).point_to_buffer_point(point, cx)
12568 {
12569 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12570 new_selections_by_buffer
12571 .entry(buffer)
12572 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12573 .0
12574 .push(buffer_offset..buffer_offset)
12575 }
12576 }
12577 None => {
12578 let selections = self.selections.all::<usize>(cx);
12579 let multi_buffer = self.buffer.read(cx);
12580 for selection in selections {
12581 for (excerpt, mut range) in multi_buffer
12582 .snapshot(cx)
12583 .range_to_buffer_ranges(selection.range())
12584 {
12585 // When editing branch buffers, jump to the corresponding location
12586 // in their base buffer.
12587 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12588 let buffer = buffer_handle.read(cx);
12589 if let Some(base_buffer) = buffer.base_buffer() {
12590 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12591 buffer_handle = base_buffer;
12592 }
12593
12594 if selection.reversed {
12595 mem::swap(&mut range.start, &mut range.end);
12596 }
12597 new_selections_by_buffer
12598 .entry(buffer_handle)
12599 .or_insert((Vec::new(), None))
12600 .0
12601 .push(range)
12602 }
12603 }
12604 }
12605 }
12606
12607 if new_selections_by_buffer.is_empty() {
12608 return;
12609 }
12610
12611 // We defer the pane interaction because we ourselves are a workspace item
12612 // and activating a new item causes the pane to call a method on us reentrantly,
12613 // which panics if we're on the stack.
12614 cx.window_context().defer(move |cx| {
12615 workspace.update(cx, |workspace, cx| {
12616 let pane = if split {
12617 workspace.adjacent_pane(cx)
12618 } else {
12619 workspace.active_pane().clone()
12620 };
12621
12622 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12623 let editor = buffer
12624 .read(cx)
12625 .file()
12626 .is_none()
12627 .then(|| {
12628 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12629 // so `workspace.open_project_item` will never find them, always opening a new editor.
12630 // Instead, we try to activate the existing editor in the pane first.
12631 let (editor, pane_item_index) =
12632 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12633 let editor = item.downcast::<Editor>()?;
12634 let singleton_buffer =
12635 editor.read(cx).buffer().read(cx).as_singleton()?;
12636 if singleton_buffer == buffer {
12637 Some((editor, i))
12638 } else {
12639 None
12640 }
12641 })?;
12642 pane.update(cx, |pane, cx| {
12643 pane.activate_item(pane_item_index, true, true, cx)
12644 });
12645 Some(editor)
12646 })
12647 .flatten()
12648 .unwrap_or_else(|| {
12649 workspace.open_project_item::<Self>(
12650 pane.clone(),
12651 buffer,
12652 true,
12653 true,
12654 cx,
12655 )
12656 });
12657
12658 editor.update(cx, |editor, cx| {
12659 let autoscroll = match scroll_offset {
12660 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12661 None => Autoscroll::newest(),
12662 };
12663 let nav_history = editor.nav_history.take();
12664 editor.change_selections(Some(autoscroll), cx, |s| {
12665 s.select_ranges(ranges);
12666 });
12667 editor.nav_history = nav_history;
12668 });
12669 }
12670 })
12671 });
12672 }
12673
12674 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12675 let snapshot = self.buffer.read(cx).read(cx);
12676 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12677 Some(
12678 ranges
12679 .iter()
12680 .map(move |range| {
12681 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12682 })
12683 .collect(),
12684 )
12685 }
12686
12687 fn selection_replacement_ranges(
12688 &self,
12689 range: Range<OffsetUtf16>,
12690 cx: &mut AppContext,
12691 ) -> Vec<Range<OffsetUtf16>> {
12692 let selections = self.selections.all::<OffsetUtf16>(cx);
12693 let newest_selection = selections
12694 .iter()
12695 .max_by_key(|selection| selection.id)
12696 .unwrap();
12697 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12698 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12699 let snapshot = self.buffer.read(cx).read(cx);
12700 selections
12701 .into_iter()
12702 .map(|mut selection| {
12703 selection.start.0 =
12704 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12705 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12706 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12707 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12708 })
12709 .collect()
12710 }
12711
12712 fn report_editor_event(
12713 &self,
12714 event_type: &'static str,
12715 file_extension: Option<String>,
12716 cx: &AppContext,
12717 ) {
12718 if cfg!(any(test, feature = "test-support")) {
12719 return;
12720 }
12721
12722 let Some(project) = &self.project else { return };
12723
12724 // If None, we are in a file without an extension
12725 let file = self
12726 .buffer
12727 .read(cx)
12728 .as_singleton()
12729 .and_then(|b| b.read(cx).file());
12730 let file_extension = file_extension.or(file
12731 .as_ref()
12732 .and_then(|file| Path::new(file.file_name(cx)).extension())
12733 .and_then(|e| e.to_str())
12734 .map(|a| a.to_string()));
12735
12736 let vim_mode = cx
12737 .global::<SettingsStore>()
12738 .raw_user_settings()
12739 .get("vim_mode")
12740 == Some(&serde_json::Value::Bool(true));
12741
12742 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12743 == language::language_settings::InlineCompletionProvider::Copilot;
12744 let copilot_enabled_for_language = self
12745 .buffer
12746 .read(cx)
12747 .settings_at(0, cx)
12748 .show_inline_completions;
12749
12750 let project = project.read(cx);
12751 telemetry::event!(
12752 event_type,
12753 file_extension,
12754 vim_mode,
12755 copilot_enabled,
12756 copilot_enabled_for_language,
12757 is_via_ssh = project.is_via_ssh(),
12758 );
12759 }
12760
12761 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12762 /// with each line being an array of {text, highlight} objects.
12763 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12764 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12765 return;
12766 };
12767
12768 #[derive(Serialize)]
12769 struct Chunk<'a> {
12770 text: String,
12771 highlight: Option<&'a str>,
12772 }
12773
12774 let snapshot = buffer.read(cx).snapshot();
12775 let range = self
12776 .selected_text_range(false, cx)
12777 .and_then(|selection| {
12778 if selection.range.is_empty() {
12779 None
12780 } else {
12781 Some(selection.range)
12782 }
12783 })
12784 .unwrap_or_else(|| 0..snapshot.len());
12785
12786 let chunks = snapshot.chunks(range, true);
12787 let mut lines = Vec::new();
12788 let mut line: VecDeque<Chunk> = VecDeque::new();
12789
12790 let Some(style) = self.style.as_ref() else {
12791 return;
12792 };
12793
12794 for chunk in chunks {
12795 let highlight = chunk
12796 .syntax_highlight_id
12797 .and_then(|id| id.name(&style.syntax));
12798 let mut chunk_lines = chunk.text.split('\n').peekable();
12799 while let Some(text) = chunk_lines.next() {
12800 let mut merged_with_last_token = false;
12801 if let Some(last_token) = line.back_mut() {
12802 if last_token.highlight == highlight {
12803 last_token.text.push_str(text);
12804 merged_with_last_token = true;
12805 }
12806 }
12807
12808 if !merged_with_last_token {
12809 line.push_back(Chunk {
12810 text: text.into(),
12811 highlight,
12812 });
12813 }
12814
12815 if chunk_lines.peek().is_some() {
12816 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12817 line.pop_front();
12818 }
12819 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12820 line.pop_back();
12821 }
12822
12823 lines.push(mem::take(&mut line));
12824 }
12825 }
12826 }
12827
12828 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12829 return;
12830 };
12831 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12832 }
12833
12834 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12835 self.request_autoscroll(Autoscroll::newest(), cx);
12836 let position = self.selections.newest_display(cx).start;
12837 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12838 }
12839
12840 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12841 &self.inlay_hint_cache
12842 }
12843
12844 pub fn replay_insert_event(
12845 &mut self,
12846 text: &str,
12847 relative_utf16_range: Option<Range<isize>>,
12848 cx: &mut ViewContext<Self>,
12849 ) {
12850 if !self.input_enabled {
12851 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12852 return;
12853 }
12854 if let Some(relative_utf16_range) = relative_utf16_range {
12855 let selections = self.selections.all::<OffsetUtf16>(cx);
12856 self.change_selections(None, cx, |s| {
12857 let new_ranges = selections.into_iter().map(|range| {
12858 let start = OffsetUtf16(
12859 range
12860 .head()
12861 .0
12862 .saturating_add_signed(relative_utf16_range.start),
12863 );
12864 let end = OffsetUtf16(
12865 range
12866 .head()
12867 .0
12868 .saturating_add_signed(relative_utf16_range.end),
12869 );
12870 start..end
12871 });
12872 s.select_ranges(new_ranges);
12873 });
12874 }
12875
12876 self.handle_input(text, cx);
12877 }
12878
12879 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12880 let Some(provider) = self.semantics_provider.as_ref() else {
12881 return false;
12882 };
12883
12884 let mut supports = false;
12885 self.buffer().read(cx).for_each_buffer(|buffer| {
12886 supports |= provider.supports_inlay_hints(buffer, cx);
12887 });
12888 supports
12889 }
12890
12891 pub fn focus(&self, cx: &mut WindowContext) {
12892 cx.focus(&self.focus_handle)
12893 }
12894
12895 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12896 self.focus_handle.is_focused(cx)
12897 }
12898
12899 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12900 cx.emit(EditorEvent::Focused);
12901
12902 if let Some(descendant) = self
12903 .last_focused_descendant
12904 .take()
12905 .and_then(|descendant| descendant.upgrade())
12906 {
12907 cx.focus(&descendant);
12908 } else {
12909 if let Some(blame) = self.blame.as_ref() {
12910 blame.update(cx, GitBlame::focus)
12911 }
12912
12913 self.blink_manager.update(cx, BlinkManager::enable);
12914 self.show_cursor_names(cx);
12915 self.buffer.update(cx, |buffer, cx| {
12916 buffer.finalize_last_transaction(cx);
12917 if self.leader_peer_id.is_none() {
12918 buffer.set_active_selections(
12919 &self.selections.disjoint_anchors(),
12920 self.selections.line_mode,
12921 self.cursor_shape,
12922 cx,
12923 );
12924 }
12925 });
12926 }
12927 }
12928
12929 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12930 cx.emit(EditorEvent::FocusedIn)
12931 }
12932
12933 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12934 if event.blurred != self.focus_handle {
12935 self.last_focused_descendant = Some(event.blurred);
12936 }
12937 }
12938
12939 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12940 self.blink_manager.update(cx, BlinkManager::disable);
12941 self.buffer
12942 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12943
12944 if let Some(blame) = self.blame.as_ref() {
12945 blame.update(cx, GitBlame::blur)
12946 }
12947 if !self.hover_state.focused(cx) {
12948 hide_hover(self, cx);
12949 }
12950
12951 self.hide_context_menu(cx);
12952 cx.emit(EditorEvent::Blurred);
12953 cx.notify();
12954 }
12955
12956 pub fn register_action<A: Action>(
12957 &mut self,
12958 listener: impl Fn(&A, &mut WindowContext) + 'static,
12959 ) -> Subscription {
12960 let id = self.next_editor_action_id.post_inc();
12961 let listener = Arc::new(listener);
12962 self.editor_actions.borrow_mut().insert(
12963 id,
12964 Box::new(move |cx| {
12965 let cx = cx.window_context();
12966 let listener = listener.clone();
12967 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12968 let action = action.downcast_ref().unwrap();
12969 if phase == DispatchPhase::Bubble {
12970 listener(action, cx)
12971 }
12972 })
12973 }),
12974 );
12975
12976 let editor_actions = self.editor_actions.clone();
12977 Subscription::new(move || {
12978 editor_actions.borrow_mut().remove(&id);
12979 })
12980 }
12981
12982 pub fn file_header_size(&self) -> u32 {
12983 FILE_HEADER_HEIGHT
12984 }
12985
12986 pub fn revert(
12987 &mut self,
12988 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12989 cx: &mut ViewContext<Self>,
12990 ) {
12991 self.buffer().update(cx, |multi_buffer, cx| {
12992 for (buffer_id, changes) in revert_changes {
12993 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12994 buffer.update(cx, |buffer, cx| {
12995 buffer.edit(
12996 changes.into_iter().map(|(range, text)| {
12997 (range, text.to_string().map(Arc::<str>::from))
12998 }),
12999 None,
13000 cx,
13001 );
13002 });
13003 }
13004 }
13005 });
13006 self.change_selections(None, cx, |selections| selections.refresh());
13007 }
13008
13009 pub fn to_pixel_point(
13010 &mut self,
13011 source: multi_buffer::Anchor,
13012 editor_snapshot: &EditorSnapshot,
13013 cx: &mut ViewContext<Self>,
13014 ) -> Option<gpui::Point<Pixels>> {
13015 let source_point = source.to_display_point(editor_snapshot);
13016 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13017 }
13018
13019 pub fn display_to_pixel_point(
13020 &self,
13021 source: DisplayPoint,
13022 editor_snapshot: &EditorSnapshot,
13023 cx: &WindowContext,
13024 ) -> Option<gpui::Point<Pixels>> {
13025 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13026 let text_layout_details = self.text_layout_details(cx);
13027 let scroll_top = text_layout_details
13028 .scroll_anchor
13029 .scroll_position(editor_snapshot)
13030 .y;
13031
13032 if source.row().as_f32() < scroll_top.floor() {
13033 return None;
13034 }
13035 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13036 let source_y = line_height * (source.row().as_f32() - scroll_top);
13037 Some(gpui::Point::new(source_x, source_y))
13038 }
13039
13040 pub fn has_active_completions_menu(&self) -> bool {
13041 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13042 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13043 })
13044 }
13045
13046 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13047 self.addons
13048 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13049 }
13050
13051 pub fn unregister_addon<T: Addon>(&mut self) {
13052 self.addons.remove(&std::any::TypeId::of::<T>());
13053 }
13054
13055 pub fn addon<T: Addon>(&self) -> Option<&T> {
13056 let type_id = std::any::TypeId::of::<T>();
13057 self.addons
13058 .get(&type_id)
13059 .and_then(|item| item.to_any().downcast_ref::<T>())
13060 }
13061
13062 pub fn add_change_set(
13063 &mut self,
13064 change_set: Model<BufferChangeSet>,
13065 cx: &mut ViewContext<Self>,
13066 ) {
13067 self.diff_map.add_change_set(change_set, cx);
13068 }
13069
13070 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13071 let text_layout_details = self.text_layout_details(cx);
13072 let style = &text_layout_details.editor_style;
13073 let font_id = cx.text_system().resolve_font(&style.text.font());
13074 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13075 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13076
13077 let em_width = cx
13078 .text_system()
13079 .typographic_bounds(font_id, font_size, 'm')
13080 .unwrap()
13081 .size
13082 .width;
13083
13084 gpui::Point::new(em_width, line_height)
13085 }
13086}
13087
13088fn get_unstaged_changes_for_buffers(
13089 project: &Model<Project>,
13090 buffers: impl IntoIterator<Item = Model<Buffer>>,
13091 cx: &mut ViewContext<Editor>,
13092) {
13093 let mut tasks = Vec::new();
13094 project.update(cx, |project, cx| {
13095 for buffer in buffers {
13096 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13097 }
13098 });
13099 cx.spawn(|this, mut cx| async move {
13100 let change_sets = futures::future::join_all(tasks).await;
13101 this.update(&mut cx, |this, cx| {
13102 for change_set in change_sets {
13103 if let Some(change_set) = change_set.log_err() {
13104 this.diff_map.add_change_set(change_set, cx);
13105 }
13106 }
13107 })
13108 .ok();
13109 })
13110 .detach();
13111}
13112
13113fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13114 let tab_size = tab_size.get() as usize;
13115 let mut width = offset;
13116
13117 for ch in text.chars() {
13118 width += if ch == '\t' {
13119 tab_size - (width % tab_size)
13120 } else {
13121 1
13122 };
13123 }
13124
13125 width - offset
13126}
13127
13128#[cfg(test)]
13129mod tests {
13130 use super::*;
13131
13132 #[test]
13133 fn test_string_size_with_expanded_tabs() {
13134 let nz = |val| NonZeroU32::new(val).unwrap();
13135 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13136 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13137 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13138 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13139 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13140 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13141 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13142 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13143 }
13144}
13145
13146/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13147struct WordBreakingTokenizer<'a> {
13148 input: &'a str,
13149}
13150
13151impl<'a> WordBreakingTokenizer<'a> {
13152 fn new(input: &'a str) -> Self {
13153 Self { input }
13154 }
13155}
13156
13157fn is_char_ideographic(ch: char) -> bool {
13158 use unicode_script::Script::*;
13159 use unicode_script::UnicodeScript;
13160 matches!(ch.script(), Han | Tangut | Yi)
13161}
13162
13163fn is_grapheme_ideographic(text: &str) -> bool {
13164 text.chars().any(is_char_ideographic)
13165}
13166
13167fn is_grapheme_whitespace(text: &str) -> bool {
13168 text.chars().any(|x| x.is_whitespace())
13169}
13170
13171fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13172 text.chars().next().map_or(false, |ch| {
13173 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13174 })
13175}
13176
13177#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13178struct WordBreakToken<'a> {
13179 token: &'a str,
13180 grapheme_len: usize,
13181 is_whitespace: bool,
13182}
13183
13184impl<'a> Iterator for WordBreakingTokenizer<'a> {
13185 /// Yields a span, the count of graphemes in the token, and whether it was
13186 /// whitespace. Note that it also breaks at word boundaries.
13187 type Item = WordBreakToken<'a>;
13188
13189 fn next(&mut self) -> Option<Self::Item> {
13190 use unicode_segmentation::UnicodeSegmentation;
13191 if self.input.is_empty() {
13192 return None;
13193 }
13194
13195 let mut iter = self.input.graphemes(true).peekable();
13196 let mut offset = 0;
13197 let mut graphemes = 0;
13198 if let Some(first_grapheme) = iter.next() {
13199 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13200 offset += first_grapheme.len();
13201 graphemes += 1;
13202 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13203 if let Some(grapheme) = iter.peek().copied() {
13204 if should_stay_with_preceding_ideograph(grapheme) {
13205 offset += grapheme.len();
13206 graphemes += 1;
13207 }
13208 }
13209 } else {
13210 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13211 let mut next_word_bound = words.peek().copied();
13212 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13213 next_word_bound = words.next();
13214 }
13215 while let Some(grapheme) = iter.peek().copied() {
13216 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13217 break;
13218 };
13219 if is_grapheme_whitespace(grapheme) != is_whitespace {
13220 break;
13221 };
13222 offset += grapheme.len();
13223 graphemes += 1;
13224 iter.next();
13225 }
13226 }
13227 let token = &self.input[..offset];
13228 self.input = &self.input[offset..];
13229 if is_whitespace {
13230 Some(WordBreakToken {
13231 token: " ",
13232 grapheme_len: 1,
13233 is_whitespace: true,
13234 })
13235 } else {
13236 Some(WordBreakToken {
13237 token,
13238 grapheme_len: graphemes,
13239 is_whitespace: false,
13240 })
13241 }
13242 } else {
13243 None
13244 }
13245 }
13246}
13247
13248#[test]
13249fn test_word_breaking_tokenizer() {
13250 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13251 ("", &[]),
13252 (" ", &[(" ", 1, true)]),
13253 ("Ʒ", &[("Ʒ", 1, false)]),
13254 ("Ǽ", &[("Ǽ", 1, false)]),
13255 ("⋑", &[("⋑", 1, false)]),
13256 ("⋑⋑", &[("⋑⋑", 2, false)]),
13257 (
13258 "原理，进而",
13259 &[
13260 ("原", 1, false),
13261 ("理，", 2, false),
13262 ("进", 1, false),
13263 ("而", 1, false),
13264 ],
13265 ),
13266 (
13267 "hello world",
13268 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13269 ),
13270 (
13271 "hello, world",
13272 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13273 ),
13274 (
13275 " hello world",
13276 &[
13277 (" ", 1, true),
13278 ("hello", 5, false),
13279 (" ", 1, true),
13280 ("world", 5, false),
13281 ],
13282 ),
13283 (
13284 "这是什么 \n 钢笔",
13285 &[
13286 ("这", 1, false),
13287 ("是", 1, false),
13288 ("什", 1, false),
13289 ("么", 1, false),
13290 (" ", 1, true),
13291 ("钢", 1, false),
13292 ("笔", 1, false),
13293 ],
13294 ),
13295 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13296 ];
13297
13298 for (input, result) in tests {
13299 assert_eq!(
13300 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13301 result
13302 .iter()
13303 .copied()
13304 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13305 token,
13306 grapheme_len,
13307 is_whitespace,
13308 })
13309 .collect::<Vec<_>>()
13310 );
13311 }
13312}
13313
13314fn wrap_with_prefix(
13315 line_prefix: String,
13316 unwrapped_text: String,
13317 wrap_column: usize,
13318 tab_size: NonZeroU32,
13319) -> String {
13320 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13321 let mut wrapped_text = String::new();
13322 let mut current_line = line_prefix.clone();
13323
13324 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13325 let mut current_line_len = line_prefix_len;
13326 for WordBreakToken {
13327 token,
13328 grapheme_len,
13329 is_whitespace,
13330 } in tokenizer
13331 {
13332 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13333 wrapped_text.push_str(current_line.trim_end());
13334 wrapped_text.push('\n');
13335 current_line.truncate(line_prefix.len());
13336 current_line_len = line_prefix_len;
13337 if !is_whitespace {
13338 current_line.push_str(token);
13339 current_line_len += grapheme_len;
13340 }
13341 } else if !is_whitespace {
13342 current_line.push_str(token);
13343 current_line_len += grapheme_len;
13344 } else if current_line_len != line_prefix_len {
13345 current_line.push(' ');
13346 current_line_len += 1;
13347 }
13348 }
13349
13350 if !current_line.is_empty() {
13351 wrapped_text.push_str(¤t_line);
13352 }
13353 wrapped_text
13354}
13355
13356#[test]
13357fn test_wrap_with_prefix() {
13358 assert_eq!(
13359 wrap_with_prefix(
13360 "# ".to_string(),
13361 "abcdefg".to_string(),
13362 4,
13363 NonZeroU32::new(4).unwrap()
13364 ),
13365 "# abcdefg"
13366 );
13367 assert_eq!(
13368 wrap_with_prefix(
13369 "".to_string(),
13370 "\thello world".to_string(),
13371 8,
13372 NonZeroU32::new(4).unwrap()
13373 ),
13374 "hello\nworld"
13375 );
13376 assert_eq!(
13377 wrap_with_prefix(
13378 "// ".to_string(),
13379 "xx \nyy zz aa bb cc".to_string(),
13380 12,
13381 NonZeroU32::new(4).unwrap()
13382 ),
13383 "// xx yy zz\n// aa bb cc"
13384 );
13385 assert_eq!(
13386 wrap_with_prefix(
13387 String::new(),
13388 "这是什么 \n 钢笔".to_string(),
13389 3,
13390 NonZeroU32::new(4).unwrap()
13391 ),
13392 "这是什\n么 钢\n笔"
13393 );
13394}
13395
13396fn hunks_for_selections(
13397 snapshot: &EditorSnapshot,
13398 selections: &[Selection<Point>],
13399) -> Vec<MultiBufferDiffHunk> {
13400 hunks_for_ranges(
13401 selections.iter().map(|selection| selection.range()),
13402 snapshot,
13403 )
13404}
13405
13406pub fn hunks_for_ranges(
13407 ranges: impl Iterator<Item = Range<Point>>,
13408 snapshot: &EditorSnapshot,
13409) -> Vec<MultiBufferDiffHunk> {
13410 let mut hunks = Vec::new();
13411 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13412 HashMap::default();
13413 for query_range in ranges {
13414 let query_rows =
13415 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13416 for hunk in snapshot.diff_map.diff_hunks_in_range(
13417 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13418 &snapshot.buffer_snapshot,
13419 ) {
13420 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13421 // when the caret is just above or just below the deleted hunk.
13422 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13423 let related_to_selection = if allow_adjacent {
13424 hunk.row_range.overlaps(&query_rows)
13425 || hunk.row_range.start == query_rows.end
13426 || hunk.row_range.end == query_rows.start
13427 } else {
13428 hunk.row_range.overlaps(&query_rows)
13429 };
13430 if related_to_selection {
13431 if !processed_buffer_rows
13432 .entry(hunk.buffer_id)
13433 .or_default()
13434 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13435 {
13436 continue;
13437 }
13438 hunks.push(hunk);
13439 }
13440 }
13441 }
13442
13443 hunks
13444}
13445
13446pub trait CollaborationHub {
13447 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13448 fn user_participant_indices<'a>(
13449 &self,
13450 cx: &'a AppContext,
13451 ) -> &'a HashMap<u64, ParticipantIndex>;
13452 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13453}
13454
13455impl CollaborationHub for Model<Project> {
13456 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13457 self.read(cx).collaborators()
13458 }
13459
13460 fn user_participant_indices<'a>(
13461 &self,
13462 cx: &'a AppContext,
13463 ) -> &'a HashMap<u64, ParticipantIndex> {
13464 self.read(cx).user_store().read(cx).participant_indices()
13465 }
13466
13467 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13468 let this = self.read(cx);
13469 let user_ids = this.collaborators().values().map(|c| c.user_id);
13470 this.user_store().read_with(cx, |user_store, cx| {
13471 user_store.participant_names(user_ids, cx)
13472 })
13473 }
13474}
13475
13476pub trait SemanticsProvider {
13477 fn hover(
13478 &self,
13479 buffer: &Model<Buffer>,
13480 position: text::Anchor,
13481 cx: &mut AppContext,
13482 ) -> Option<Task<Vec<project::Hover>>>;
13483
13484 fn inlay_hints(
13485 &self,
13486 buffer_handle: Model<Buffer>,
13487 range: Range<text::Anchor>,
13488 cx: &mut AppContext,
13489 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13490
13491 fn resolve_inlay_hint(
13492 &self,
13493 hint: InlayHint,
13494 buffer_handle: Model<Buffer>,
13495 server_id: LanguageServerId,
13496 cx: &mut AppContext,
13497 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13498
13499 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13500
13501 fn document_highlights(
13502 &self,
13503 buffer: &Model<Buffer>,
13504 position: text::Anchor,
13505 cx: &mut AppContext,
13506 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13507
13508 fn definitions(
13509 &self,
13510 buffer: &Model<Buffer>,
13511 position: text::Anchor,
13512 kind: GotoDefinitionKind,
13513 cx: &mut AppContext,
13514 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13515
13516 fn range_for_rename(
13517 &self,
13518 buffer: &Model<Buffer>,
13519 position: text::Anchor,
13520 cx: &mut AppContext,
13521 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13522
13523 fn perform_rename(
13524 &self,
13525 buffer: &Model<Buffer>,
13526 position: text::Anchor,
13527 new_name: String,
13528 cx: &mut AppContext,
13529 ) -> Option<Task<Result<ProjectTransaction>>>;
13530}
13531
13532pub trait CompletionProvider {
13533 fn completions(
13534 &self,
13535 buffer: &Model<Buffer>,
13536 buffer_position: text::Anchor,
13537 trigger: CompletionContext,
13538 cx: &mut ViewContext<Editor>,
13539 ) -> Task<Result<Vec<Completion>>>;
13540
13541 fn resolve_completions(
13542 &self,
13543 buffer: Model<Buffer>,
13544 completion_indices: Vec<usize>,
13545 completions: Rc<RefCell<Box<[Completion]>>>,
13546 cx: &mut ViewContext<Editor>,
13547 ) -> Task<Result<bool>>;
13548
13549 fn apply_additional_edits_for_completion(
13550 &self,
13551 _buffer: Model<Buffer>,
13552 _completions: Rc<RefCell<Box<[Completion]>>>,
13553 _completion_index: usize,
13554 _push_to_history: bool,
13555 _cx: &mut ViewContext<Editor>,
13556 ) -> Task<Result<Option<language::Transaction>>> {
13557 Task::ready(Ok(None))
13558 }
13559
13560 fn is_completion_trigger(
13561 &self,
13562 buffer: &Model<Buffer>,
13563 position: language::Anchor,
13564 text: &str,
13565 trigger_in_words: bool,
13566 cx: &mut ViewContext<Editor>,
13567 ) -> bool;
13568
13569 fn sort_completions(&self) -> bool {
13570 true
13571 }
13572}
13573
13574pub trait CodeActionProvider {
13575 fn id(&self) -> Arc<str>;
13576
13577 fn code_actions(
13578 &self,
13579 buffer: &Model<Buffer>,
13580 range: Range<text::Anchor>,
13581 cx: &mut WindowContext,
13582 ) -> Task<Result<Vec<CodeAction>>>;
13583
13584 fn apply_code_action(
13585 &self,
13586 buffer_handle: Model<Buffer>,
13587 action: CodeAction,
13588 excerpt_id: ExcerptId,
13589 push_to_history: bool,
13590 cx: &mut WindowContext,
13591 ) -> Task<Result<ProjectTransaction>>;
13592}
13593
13594impl CodeActionProvider for Model<Project> {
13595 fn id(&self) -> Arc<str> {
13596 "project".into()
13597 }
13598
13599 fn code_actions(
13600 &self,
13601 buffer: &Model<Buffer>,
13602 range: Range<text::Anchor>,
13603 cx: &mut WindowContext,
13604 ) -> Task<Result<Vec<CodeAction>>> {
13605 self.update(cx, |project, cx| {
13606 project.code_actions(buffer, range, None, cx)
13607 })
13608 }
13609
13610 fn apply_code_action(
13611 &self,
13612 buffer_handle: Model<Buffer>,
13613 action: CodeAction,
13614 _excerpt_id: ExcerptId,
13615 push_to_history: bool,
13616 cx: &mut WindowContext,
13617 ) -> Task<Result<ProjectTransaction>> {
13618 self.update(cx, |project, cx| {
13619 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13620 })
13621 }
13622}
13623
13624fn snippet_completions(
13625 project: &Project,
13626 buffer: &Model<Buffer>,
13627 buffer_position: text::Anchor,
13628 cx: &mut AppContext,
13629) -> Task<Result<Vec<Completion>>> {
13630 let language = buffer.read(cx).language_at(buffer_position);
13631 let language_name = language.as_ref().map(|language| language.lsp_id());
13632 let snippet_store = project.snippets().read(cx);
13633 let snippets = snippet_store.snippets_for(language_name, cx);
13634
13635 if snippets.is_empty() {
13636 return Task::ready(Ok(vec![]));
13637 }
13638 let snapshot = buffer.read(cx).text_snapshot();
13639 let chars: String = snapshot
13640 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13641 .collect();
13642
13643 let scope = language.map(|language| language.default_scope());
13644 let executor = cx.background_executor().clone();
13645
13646 cx.background_executor().spawn(async move {
13647 let classifier = CharClassifier::new(scope).for_completion(true);
13648 let mut last_word = chars
13649 .chars()
13650 .take_while(|c| classifier.is_word(*c))
13651 .collect::<String>();
13652 last_word = last_word.chars().rev().collect();
13653
13654 if last_word.is_empty() {
13655 return Ok(vec![]);
13656 }
13657
13658 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13659 let to_lsp = |point: &text::Anchor| {
13660 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13661 point_to_lsp(end)
13662 };
13663 let lsp_end = to_lsp(&buffer_position);
13664
13665 let candidates = snippets
13666 .iter()
13667 .enumerate()
13668 .flat_map(|(ix, snippet)| {
13669 snippet
13670 .prefix
13671 .iter()
13672 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13673 })
13674 .collect::<Vec<StringMatchCandidate>>();
13675
13676 let mut matches = fuzzy::match_strings(
13677 &candidates,
13678 &last_word,
13679 last_word.chars().any(|c| c.is_uppercase()),
13680 100,
13681 &Default::default(),
13682 executor,
13683 )
13684 .await;
13685
13686 // Remove all candidates where the query's start does not match the start of any word in the candidate
13687 if let Some(query_start) = last_word.chars().next() {
13688 matches.retain(|string_match| {
13689 split_words(&string_match.string).any(|word| {
13690 // Check that the first codepoint of the word as lowercase matches the first
13691 // codepoint of the query as lowercase
13692 word.chars()
13693 .flat_map(|codepoint| codepoint.to_lowercase())
13694 .zip(query_start.to_lowercase())
13695 .all(|(word_cp, query_cp)| word_cp == query_cp)
13696 })
13697 });
13698 }
13699
13700 let matched_strings = matches
13701 .into_iter()
13702 .map(|m| m.string)
13703 .collect::<HashSet<_>>();
13704
13705 let result: Vec<Completion> = snippets
13706 .into_iter()
13707 .filter_map(|snippet| {
13708 let matching_prefix = snippet
13709 .prefix
13710 .iter()
13711 .find(|prefix| matched_strings.contains(*prefix))?;
13712 let start = as_offset - last_word.len();
13713 let start = snapshot.anchor_before(start);
13714 let range = start..buffer_position;
13715 let lsp_start = to_lsp(&start);
13716 let lsp_range = lsp::Range {
13717 start: lsp_start,
13718 end: lsp_end,
13719 };
13720 Some(Completion {
13721 old_range: range,
13722 new_text: snippet.body.clone(),
13723 resolved: false,
13724 label: CodeLabel {
13725 text: matching_prefix.clone(),
13726 runs: vec![],
13727 filter_range: 0..matching_prefix.len(),
13728 },
13729 server_id: LanguageServerId(usize::MAX),
13730 documentation: snippet.description.clone().map(Documentation::SingleLine),
13731 lsp_completion: lsp::CompletionItem {
13732 label: snippet.prefix.first().unwrap().clone(),
13733 kind: Some(CompletionItemKind::SNIPPET),
13734 label_details: snippet.description.as_ref().map(|description| {
13735 lsp::CompletionItemLabelDetails {
13736 detail: Some(description.clone()),
13737 description: None,
13738 }
13739 }),
13740 insert_text_format: Some(InsertTextFormat::SNIPPET),
13741 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13742 lsp::InsertReplaceEdit {
13743 new_text: snippet.body.clone(),
13744 insert: lsp_range,
13745 replace: lsp_range,
13746 },
13747 )),
13748 filter_text: Some(snippet.body.clone()),
13749 sort_text: Some(char::MAX.to_string()),
13750 ..Default::default()
13751 },
13752 confirm: None,
13753 })
13754 })
13755 .collect();
13756
13757 Ok(result)
13758 })
13759}
13760
13761impl CompletionProvider for Model<Project> {
13762 fn completions(
13763 &self,
13764 buffer: &Model<Buffer>,
13765 buffer_position: text::Anchor,
13766 options: CompletionContext,
13767 cx: &mut ViewContext<Editor>,
13768 ) -> Task<Result<Vec<Completion>>> {
13769 self.update(cx, |project, cx| {
13770 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13771 let project_completions = project.completions(buffer, buffer_position, options, cx);
13772 cx.background_executor().spawn(async move {
13773 let mut completions = project_completions.await?;
13774 let snippets_completions = snippets.await?;
13775 completions.extend(snippets_completions);
13776 Ok(completions)
13777 })
13778 })
13779 }
13780
13781 fn resolve_completions(
13782 &self,
13783 buffer: Model<Buffer>,
13784 completion_indices: Vec<usize>,
13785 completions: Rc<RefCell<Box<[Completion]>>>,
13786 cx: &mut ViewContext<Editor>,
13787 ) -> Task<Result<bool>> {
13788 self.update(cx, |project, cx| {
13789 project.lsp_store().update(cx, |lsp_store, cx| {
13790 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13791 })
13792 })
13793 }
13794
13795 fn apply_additional_edits_for_completion(
13796 &self,
13797 buffer: Model<Buffer>,
13798 completions: Rc<RefCell<Box<[Completion]>>>,
13799 completion_index: usize,
13800 push_to_history: bool,
13801 cx: &mut ViewContext<Editor>,
13802 ) -> Task<Result<Option<language::Transaction>>> {
13803 self.update(cx, |project, cx| {
13804 project.lsp_store().update(cx, |lsp_store, cx| {
13805 lsp_store.apply_additional_edits_for_completion(
13806 buffer,
13807 completions,
13808 completion_index,
13809 push_to_history,
13810 cx,
13811 )
13812 })
13813 })
13814 }
13815
13816 fn is_completion_trigger(
13817 &self,
13818 buffer: &Model<Buffer>,
13819 position: language::Anchor,
13820 text: &str,
13821 trigger_in_words: bool,
13822 cx: &mut ViewContext<Editor>,
13823 ) -> bool {
13824 let mut chars = text.chars();
13825 let char = if let Some(char) = chars.next() {
13826 char
13827 } else {
13828 return false;
13829 };
13830 if chars.next().is_some() {
13831 return false;
13832 }
13833
13834 let buffer = buffer.read(cx);
13835 let snapshot = buffer.snapshot();
13836 if !snapshot.settings_at(position, cx).show_completions_on_input {
13837 return false;
13838 }
13839 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13840 if trigger_in_words && classifier.is_word(char) {
13841 return true;
13842 }
13843
13844 buffer.completion_triggers().contains(text)
13845 }
13846}
13847
13848impl SemanticsProvider for Model<Project> {
13849 fn hover(
13850 &self,
13851 buffer: &Model<Buffer>,
13852 position: text::Anchor,
13853 cx: &mut AppContext,
13854 ) -> Option<Task<Vec<project::Hover>>> {
13855 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13856 }
13857
13858 fn document_highlights(
13859 &self,
13860 buffer: &Model<Buffer>,
13861 position: text::Anchor,
13862 cx: &mut AppContext,
13863 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13864 Some(self.update(cx, |project, cx| {
13865 project.document_highlights(buffer, position, cx)
13866 }))
13867 }
13868
13869 fn definitions(
13870 &self,
13871 buffer: &Model<Buffer>,
13872 position: text::Anchor,
13873 kind: GotoDefinitionKind,
13874 cx: &mut AppContext,
13875 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13876 Some(self.update(cx, |project, cx| match kind {
13877 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13878 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13879 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13880 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13881 }))
13882 }
13883
13884 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13885 // TODO: make this work for remote projects
13886 self.read(cx)
13887 .language_servers_for_local_buffer(buffer.read(cx), cx)
13888 .any(
13889 |(_, server)| match server.capabilities().inlay_hint_provider {
13890 Some(lsp::OneOf::Left(enabled)) => enabled,
13891 Some(lsp::OneOf::Right(_)) => true,
13892 None => false,
13893 },
13894 )
13895 }
13896
13897 fn inlay_hints(
13898 &self,
13899 buffer_handle: Model<Buffer>,
13900 range: Range<text::Anchor>,
13901 cx: &mut AppContext,
13902 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13903 Some(self.update(cx, |project, cx| {
13904 project.inlay_hints(buffer_handle, range, cx)
13905 }))
13906 }
13907
13908 fn resolve_inlay_hint(
13909 &self,
13910 hint: InlayHint,
13911 buffer_handle: Model<Buffer>,
13912 server_id: LanguageServerId,
13913 cx: &mut AppContext,
13914 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13915 Some(self.update(cx, |project, cx| {
13916 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13917 }))
13918 }
13919
13920 fn range_for_rename(
13921 &self,
13922 buffer: &Model<Buffer>,
13923 position: text::Anchor,
13924 cx: &mut AppContext,
13925 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13926 Some(self.update(cx, |project, cx| {
13927 project.prepare_rename(buffer.clone(), position, cx)
13928 }))
13929 }
13930
13931 fn perform_rename(
13932 &self,
13933 buffer: &Model<Buffer>,
13934 position: text::Anchor,
13935 new_name: String,
13936 cx: &mut AppContext,
13937 ) -> Option<Task<Result<ProjectTransaction>>> {
13938 Some(self.update(cx, |project, cx| {
13939 project.perform_rename(buffer.clone(), position, new_name, cx)
13940 }))
13941 }
13942}
13943
13944fn inlay_hint_settings(
13945 location: Anchor,
13946 snapshot: &MultiBufferSnapshot,
13947 cx: &mut ViewContext<Editor>,
13948) -> InlayHintSettings {
13949 let file = snapshot.file_at(location);
13950 let language = snapshot.language_at(location).map(|l| l.name());
13951 language_settings(language, file, cx).inlay_hints
13952}
13953
13954fn consume_contiguous_rows(
13955 contiguous_row_selections: &mut Vec<Selection<Point>>,
13956 selection: &Selection<Point>,
13957 display_map: &DisplaySnapshot,
13958 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13959) -> (MultiBufferRow, MultiBufferRow) {
13960 contiguous_row_selections.push(selection.clone());
13961 let start_row = MultiBufferRow(selection.start.row);
13962 let mut end_row = ending_row(selection, display_map);
13963
13964 while let Some(next_selection) = selections.peek() {
13965 if next_selection.start.row <= end_row.0 {
13966 end_row = ending_row(next_selection, display_map);
13967 contiguous_row_selections.push(selections.next().unwrap().clone());
13968 } else {
13969 break;
13970 }
13971 }
13972 (start_row, end_row)
13973}
13974
13975fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13976 if next_selection.end.column > 0 || next_selection.is_empty() {
13977 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13978 } else {
13979 MultiBufferRow(next_selection.end.row)
13980 }
13981}
13982
13983impl EditorSnapshot {
13984 pub fn remote_selections_in_range<'a>(
13985 &'a self,
13986 range: &'a Range<Anchor>,
13987 collaboration_hub: &dyn CollaborationHub,
13988 cx: &'a AppContext,
13989 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13990 let participant_names = collaboration_hub.user_names(cx);
13991 let participant_indices = collaboration_hub.user_participant_indices(cx);
13992 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13993 let collaborators_by_replica_id = collaborators_by_peer_id
13994 .iter()
13995 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13996 .collect::<HashMap<_, _>>();
13997 self.buffer_snapshot
13998 .selections_in_range(range, false)
13999 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14000 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14001 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14002 let user_name = participant_names.get(&collaborator.user_id).cloned();
14003 Some(RemoteSelection {
14004 replica_id,
14005 selection,
14006 cursor_shape,
14007 line_mode,
14008 participant_index,
14009 peer_id: collaborator.peer_id,
14010 user_name,
14011 })
14012 })
14013 }
14014
14015 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14016 self.display_snapshot.buffer_snapshot.language_at(position)
14017 }
14018
14019 pub fn is_focused(&self) -> bool {
14020 self.is_focused
14021 }
14022
14023 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14024 self.placeholder_text.as_ref()
14025 }
14026
14027 pub fn scroll_position(&self) -> gpui::Point<f32> {
14028 self.scroll_anchor.scroll_position(&self.display_snapshot)
14029 }
14030
14031 fn gutter_dimensions(
14032 &self,
14033 font_id: FontId,
14034 font_size: Pixels,
14035 em_width: Pixels,
14036 em_advance: Pixels,
14037 max_line_number_width: Pixels,
14038 cx: &AppContext,
14039 ) -> GutterDimensions {
14040 if !self.show_gutter {
14041 return GutterDimensions::default();
14042 }
14043 let descent = cx.text_system().descent(font_id, font_size);
14044
14045 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14046 matches!(
14047 ProjectSettings::get_global(cx).git.git_gutter,
14048 Some(GitGutterSetting::TrackedFiles)
14049 )
14050 });
14051 let gutter_settings = EditorSettings::get_global(cx).gutter;
14052 let show_line_numbers = self
14053 .show_line_numbers
14054 .unwrap_or(gutter_settings.line_numbers);
14055 let line_gutter_width = if show_line_numbers {
14056 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14057 let min_width_for_number_on_gutter = em_advance * 4.0;
14058 max_line_number_width.max(min_width_for_number_on_gutter)
14059 } else {
14060 0.0.into()
14061 };
14062
14063 let show_code_actions = self
14064 .show_code_actions
14065 .unwrap_or(gutter_settings.code_actions);
14066
14067 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14068
14069 let git_blame_entries_width =
14070 self.git_blame_gutter_max_author_length
14071 .map(|max_author_length| {
14072 // Length of the author name, but also space for the commit hash,
14073 // the spacing and the timestamp.
14074 let max_char_count = max_author_length
14075 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14076 + 7 // length of commit sha
14077 + 14 // length of max relative timestamp ("60 minutes ago")
14078 + 4; // gaps and margins
14079
14080 em_advance * max_char_count
14081 });
14082
14083 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14084 left_padding += if show_code_actions || show_runnables {
14085 em_width * 3.0
14086 } else if show_git_gutter && show_line_numbers {
14087 em_width * 2.0
14088 } else if show_git_gutter || show_line_numbers {
14089 em_width
14090 } else {
14091 px(0.)
14092 };
14093
14094 let right_padding = if gutter_settings.folds && show_line_numbers {
14095 em_width * 4.0
14096 } else if gutter_settings.folds {
14097 em_width * 3.0
14098 } else if show_line_numbers {
14099 em_width
14100 } else {
14101 px(0.)
14102 };
14103
14104 GutterDimensions {
14105 left_padding,
14106 right_padding,
14107 width: line_gutter_width + left_padding + right_padding,
14108 margin: -descent,
14109 git_blame_entries_width,
14110 }
14111 }
14112
14113 pub fn render_crease_toggle(
14114 &self,
14115 buffer_row: MultiBufferRow,
14116 row_contains_cursor: bool,
14117 editor: View<Editor>,
14118 cx: &mut WindowContext,
14119 ) -> Option<AnyElement> {
14120 let folded = self.is_line_folded(buffer_row);
14121 let mut is_foldable = false;
14122
14123 if let Some(crease) = self
14124 .crease_snapshot
14125 .query_row(buffer_row, &self.buffer_snapshot)
14126 {
14127 is_foldable = true;
14128 match crease {
14129 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14130 if let Some(render_toggle) = render_toggle {
14131 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14132 if folded {
14133 editor.update(cx, |editor, cx| {
14134 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14135 });
14136 } else {
14137 editor.update(cx, |editor, cx| {
14138 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14139 });
14140 }
14141 });
14142 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14143 }
14144 }
14145 }
14146 }
14147
14148 is_foldable |= self.starts_indent(buffer_row);
14149
14150 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14151 Some(
14152 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14153 .toggle_state(folded)
14154 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14155 if folded {
14156 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14157 } else {
14158 this.fold_at(&FoldAt { buffer_row }, cx);
14159 }
14160 }))
14161 .into_any_element(),
14162 )
14163 } else {
14164 None
14165 }
14166 }
14167
14168 pub fn render_crease_trailer(
14169 &self,
14170 buffer_row: MultiBufferRow,
14171 cx: &mut WindowContext,
14172 ) -> Option<AnyElement> {
14173 let folded = self.is_line_folded(buffer_row);
14174 if let Crease::Inline { render_trailer, .. } = self
14175 .crease_snapshot
14176 .query_row(buffer_row, &self.buffer_snapshot)?
14177 {
14178 let render_trailer = render_trailer.as_ref()?;
14179 Some(render_trailer(buffer_row, folded, cx))
14180 } else {
14181 None
14182 }
14183 }
14184}
14185
14186impl Deref for EditorSnapshot {
14187 type Target = DisplaySnapshot;
14188
14189 fn deref(&self) -> &Self::Target {
14190 &self.display_snapshot
14191 }
14192}
14193
14194#[derive(Clone, Debug, PartialEq, Eq)]
14195pub enum EditorEvent {
14196 InputIgnored {
14197 text: Arc<str>,
14198 },
14199 InputHandled {
14200 utf16_range_to_replace: Option<Range<isize>>,
14201 text: Arc<str>,
14202 },
14203 ExcerptsAdded {
14204 buffer: Model<Buffer>,
14205 predecessor: ExcerptId,
14206 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14207 },
14208 ExcerptsRemoved {
14209 ids: Vec<ExcerptId>,
14210 },
14211 BufferFoldToggled {
14212 ids: Vec<ExcerptId>,
14213 folded: bool,
14214 },
14215 ExcerptsEdited {
14216 ids: Vec<ExcerptId>,
14217 },
14218 ExcerptsExpanded {
14219 ids: Vec<ExcerptId>,
14220 },
14221 BufferEdited,
14222 Edited {
14223 transaction_id: clock::Lamport,
14224 },
14225 Reparsed(BufferId),
14226 Focused,
14227 FocusedIn,
14228 Blurred,
14229 DirtyChanged,
14230 Saved,
14231 TitleChanged,
14232 DiffBaseChanged,
14233 SelectionsChanged {
14234 local: bool,
14235 },
14236 ScrollPositionChanged {
14237 local: bool,
14238 autoscroll: bool,
14239 },
14240 Closed,
14241 TransactionUndone {
14242 transaction_id: clock::Lamport,
14243 },
14244 TransactionBegun {
14245 transaction_id: clock::Lamport,
14246 },
14247 Reloaded,
14248 CursorShapeChanged,
14249}
14250
14251impl EventEmitter<EditorEvent> for Editor {}
14252
14253impl FocusableView for Editor {
14254 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14255 self.focus_handle.clone()
14256 }
14257}
14258
14259impl Render for Editor {
14260 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14261 let settings = ThemeSettings::get_global(cx);
14262
14263 let mut text_style = match self.mode {
14264 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14265 color: cx.theme().colors().editor_foreground,
14266 font_family: settings.ui_font.family.clone(),
14267 font_features: settings.ui_font.features.clone(),
14268 font_fallbacks: settings.ui_font.fallbacks.clone(),
14269 font_size: rems(0.875).into(),
14270 font_weight: settings.ui_font.weight,
14271 line_height: relative(settings.buffer_line_height.value()),
14272 ..Default::default()
14273 },
14274 EditorMode::Full => TextStyle {
14275 color: cx.theme().colors().editor_foreground,
14276 font_family: settings.buffer_font.family.clone(),
14277 font_features: settings.buffer_font.features.clone(),
14278 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14279 font_size: settings.buffer_font_size(cx).into(),
14280 font_weight: settings.buffer_font.weight,
14281 line_height: relative(settings.buffer_line_height.value()),
14282 ..Default::default()
14283 },
14284 };
14285 if let Some(text_style_refinement) = &self.text_style_refinement {
14286 text_style.refine(text_style_refinement)
14287 }
14288
14289 let background = match self.mode {
14290 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14291 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14292 EditorMode::Full => cx.theme().colors().editor_background,
14293 };
14294
14295 EditorElement::new(
14296 cx.view(),
14297 EditorStyle {
14298 background,
14299 local_player: cx.theme().players().local(),
14300 text: text_style,
14301 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14302 syntax: cx.theme().syntax().clone(),
14303 status: cx.theme().status().clone(),
14304 inlay_hints_style: make_inlay_hints_style(cx),
14305 inline_completion_styles: make_suggestion_styles(cx),
14306 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14307 },
14308 )
14309 }
14310}
14311
14312impl ViewInputHandler for Editor {
14313 fn text_for_range(
14314 &mut self,
14315 range_utf16: Range<usize>,
14316 adjusted_range: &mut Option<Range<usize>>,
14317 cx: &mut ViewContext<Self>,
14318 ) -> Option<String> {
14319 let snapshot = self.buffer.read(cx).read(cx);
14320 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14321 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14322 if (start.0..end.0) != range_utf16 {
14323 adjusted_range.replace(start.0..end.0);
14324 }
14325 Some(snapshot.text_for_range(start..end).collect())
14326 }
14327
14328 fn selected_text_range(
14329 &mut self,
14330 ignore_disabled_input: bool,
14331 cx: &mut ViewContext<Self>,
14332 ) -> Option<UTF16Selection> {
14333 // Prevent the IME menu from appearing when holding down an alphabetic key
14334 // while input is disabled.
14335 if !ignore_disabled_input && !self.input_enabled {
14336 return None;
14337 }
14338
14339 let selection = self.selections.newest::<OffsetUtf16>(cx);
14340 let range = selection.range();
14341
14342 Some(UTF16Selection {
14343 range: range.start.0..range.end.0,
14344 reversed: selection.reversed,
14345 })
14346 }
14347
14348 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14349 let snapshot = self.buffer.read(cx).read(cx);
14350 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14351 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14352 }
14353
14354 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14355 self.clear_highlights::<InputComposition>(cx);
14356 self.ime_transaction.take();
14357 }
14358
14359 fn replace_text_in_range(
14360 &mut self,
14361 range_utf16: Option<Range<usize>>,
14362 text: &str,
14363 cx: &mut ViewContext<Self>,
14364 ) {
14365 if !self.input_enabled {
14366 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14367 return;
14368 }
14369
14370 self.transact(cx, |this, cx| {
14371 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14372 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14373 Some(this.selection_replacement_ranges(range_utf16, cx))
14374 } else {
14375 this.marked_text_ranges(cx)
14376 };
14377
14378 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14379 let newest_selection_id = this.selections.newest_anchor().id;
14380 this.selections
14381 .all::<OffsetUtf16>(cx)
14382 .iter()
14383 .zip(ranges_to_replace.iter())
14384 .find_map(|(selection, range)| {
14385 if selection.id == newest_selection_id {
14386 Some(
14387 (range.start.0 as isize - selection.head().0 as isize)
14388 ..(range.end.0 as isize - selection.head().0 as isize),
14389 )
14390 } else {
14391 None
14392 }
14393 })
14394 });
14395
14396 cx.emit(EditorEvent::InputHandled {
14397 utf16_range_to_replace: range_to_replace,
14398 text: text.into(),
14399 });
14400
14401 if let Some(new_selected_ranges) = new_selected_ranges {
14402 this.change_selections(None, cx, |selections| {
14403 selections.select_ranges(new_selected_ranges)
14404 });
14405 this.backspace(&Default::default(), cx);
14406 }
14407
14408 this.handle_input(text, cx);
14409 });
14410
14411 if let Some(transaction) = self.ime_transaction {
14412 self.buffer.update(cx, |buffer, cx| {
14413 buffer.group_until_transaction(transaction, cx);
14414 });
14415 }
14416
14417 self.unmark_text(cx);
14418 }
14419
14420 fn replace_and_mark_text_in_range(
14421 &mut self,
14422 range_utf16: Option<Range<usize>>,
14423 text: &str,
14424 new_selected_range_utf16: Option<Range<usize>>,
14425 cx: &mut ViewContext<Self>,
14426 ) {
14427 if !self.input_enabled {
14428 return;
14429 }
14430
14431 let transaction = self.transact(cx, |this, cx| {
14432 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14433 let snapshot = this.buffer.read(cx).read(cx);
14434 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14435 for marked_range in &mut marked_ranges {
14436 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14437 marked_range.start.0 += relative_range_utf16.start;
14438 marked_range.start =
14439 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14440 marked_range.end =
14441 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14442 }
14443 }
14444 Some(marked_ranges)
14445 } else if let Some(range_utf16) = range_utf16 {
14446 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14447 Some(this.selection_replacement_ranges(range_utf16, cx))
14448 } else {
14449 None
14450 };
14451
14452 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14453 let newest_selection_id = this.selections.newest_anchor().id;
14454 this.selections
14455 .all::<OffsetUtf16>(cx)
14456 .iter()
14457 .zip(ranges_to_replace.iter())
14458 .find_map(|(selection, range)| {
14459 if selection.id == newest_selection_id {
14460 Some(
14461 (range.start.0 as isize - selection.head().0 as isize)
14462 ..(range.end.0 as isize - selection.head().0 as isize),
14463 )
14464 } else {
14465 None
14466 }
14467 })
14468 });
14469
14470 cx.emit(EditorEvent::InputHandled {
14471 utf16_range_to_replace: range_to_replace,
14472 text: text.into(),
14473 });
14474
14475 if let Some(ranges) = ranges_to_replace {
14476 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14477 }
14478
14479 let marked_ranges = {
14480 let snapshot = this.buffer.read(cx).read(cx);
14481 this.selections
14482 .disjoint_anchors()
14483 .iter()
14484 .map(|selection| {
14485 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14486 })
14487 .collect::<Vec<_>>()
14488 };
14489
14490 if text.is_empty() {
14491 this.unmark_text(cx);
14492 } else {
14493 this.highlight_text::<InputComposition>(
14494 marked_ranges.clone(),
14495 HighlightStyle {
14496 underline: Some(UnderlineStyle {
14497 thickness: px(1.),
14498 color: None,
14499 wavy: false,
14500 }),
14501 ..Default::default()
14502 },
14503 cx,
14504 );
14505 }
14506
14507 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14508 let use_autoclose = this.use_autoclose;
14509 let use_auto_surround = this.use_auto_surround;
14510 this.set_use_autoclose(false);
14511 this.set_use_auto_surround(false);
14512 this.handle_input(text, cx);
14513 this.set_use_autoclose(use_autoclose);
14514 this.set_use_auto_surround(use_auto_surround);
14515
14516 if let Some(new_selected_range) = new_selected_range_utf16 {
14517 let snapshot = this.buffer.read(cx).read(cx);
14518 let new_selected_ranges = marked_ranges
14519 .into_iter()
14520 .map(|marked_range| {
14521 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14522 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14523 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14524 snapshot.clip_offset_utf16(new_start, Bias::Left)
14525 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14526 })
14527 .collect::<Vec<_>>();
14528
14529 drop(snapshot);
14530 this.change_selections(None, cx, |selections| {
14531 selections.select_ranges(new_selected_ranges)
14532 });
14533 }
14534 });
14535
14536 self.ime_transaction = self.ime_transaction.or(transaction);
14537 if let Some(transaction) = self.ime_transaction {
14538 self.buffer.update(cx, |buffer, cx| {
14539 buffer.group_until_transaction(transaction, cx);
14540 });
14541 }
14542
14543 if self.text_highlights::<InputComposition>(cx).is_none() {
14544 self.ime_transaction.take();
14545 }
14546 }
14547
14548 fn bounds_for_range(
14549 &mut self,
14550 range_utf16: Range<usize>,
14551 element_bounds: gpui::Bounds<Pixels>,
14552 cx: &mut ViewContext<Self>,
14553 ) -> Option<gpui::Bounds<Pixels>> {
14554 let text_layout_details = self.text_layout_details(cx);
14555 let gpui::Point {
14556 x: em_width,
14557 y: line_height,
14558 } = self.character_size(cx);
14559
14560 let snapshot = self.snapshot(cx);
14561 let scroll_position = snapshot.scroll_position();
14562 let scroll_left = scroll_position.x * em_width;
14563
14564 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14565 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14566 + self.gutter_dimensions.width
14567 + self.gutter_dimensions.margin;
14568 let y = line_height * (start.row().as_f32() - scroll_position.y);
14569
14570 Some(Bounds {
14571 origin: element_bounds.origin + point(x, y),
14572 size: size(em_width, line_height),
14573 })
14574 }
14575}
14576
14577trait SelectionExt {
14578 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14579 fn spanned_rows(
14580 &self,
14581 include_end_if_at_line_start: bool,
14582 map: &DisplaySnapshot,
14583 ) -> Range<MultiBufferRow>;
14584}
14585
14586impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14587 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14588 let start = self
14589 .start
14590 .to_point(&map.buffer_snapshot)
14591 .to_display_point(map);
14592 let end = self
14593 .end
14594 .to_point(&map.buffer_snapshot)
14595 .to_display_point(map);
14596 if self.reversed {
14597 end..start
14598 } else {
14599 start..end
14600 }
14601 }
14602
14603 fn spanned_rows(
14604 &self,
14605 include_end_if_at_line_start: bool,
14606 map: &DisplaySnapshot,
14607 ) -> Range<MultiBufferRow> {
14608 let start = self.start.to_point(&map.buffer_snapshot);
14609 let mut end = self.end.to_point(&map.buffer_snapshot);
14610 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14611 end.row -= 1;
14612 }
14613
14614 let buffer_start = map.prev_line_boundary(start).0;
14615 let buffer_end = map.next_line_boundary(end).0;
14616 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14617 }
14618}
14619
14620impl<T: InvalidationRegion> InvalidationStack<T> {
14621 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14622 where
14623 S: Clone + ToOffset,
14624 {
14625 while let Some(region) = self.last() {
14626 let all_selections_inside_invalidation_ranges =
14627 if selections.len() == region.ranges().len() {
14628 selections
14629 .iter()
14630 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14631 .all(|(selection, invalidation_range)| {
14632 let head = selection.head().to_offset(buffer);
14633 invalidation_range.start <= head && invalidation_range.end >= head
14634 })
14635 } else {
14636 false
14637 };
14638
14639 if all_selections_inside_invalidation_ranges {
14640 break;
14641 } else {
14642 self.pop();
14643 }
14644 }
14645 }
14646}
14647
14648impl<T> Default for InvalidationStack<T> {
14649 fn default() -> Self {
14650 Self(Default::default())
14651 }
14652}
14653
14654impl<T> Deref for InvalidationStack<T> {
14655 type Target = Vec<T>;
14656
14657 fn deref(&self) -> &Self::Target {
14658 &self.0
14659 }
14660}
14661
14662impl<T> DerefMut for InvalidationStack<T> {
14663 fn deref_mut(&mut self) -> &mut Self::Target {
14664 &mut self.0
14665 }
14666}
14667
14668impl InvalidationRegion for SnippetState {
14669 fn ranges(&self) -> &[Range<Anchor>] {
14670 &self.ranges[self.active_index]
14671 }
14672}
14673
14674pub fn diagnostic_block_renderer(
14675 diagnostic: Diagnostic,
14676 max_message_rows: Option<u8>,
14677 allow_closing: bool,
14678 _is_valid: bool,
14679) -> RenderBlock {
14680 let (text_without_backticks, code_ranges) =
14681 highlight_diagnostic_message(&diagnostic, max_message_rows);
14682
14683 Arc::new(move |cx: &mut BlockContext| {
14684 let group_id: SharedString = cx.block_id.to_string().into();
14685
14686 let mut text_style = cx.text_style().clone();
14687 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14688 let theme_settings = ThemeSettings::get_global(cx);
14689 text_style.font_family = theme_settings.buffer_font.family.clone();
14690 text_style.font_style = theme_settings.buffer_font.style;
14691 text_style.font_features = theme_settings.buffer_font.features.clone();
14692 text_style.font_weight = theme_settings.buffer_font.weight;
14693
14694 let multi_line_diagnostic = diagnostic.message.contains('\n');
14695
14696 let buttons = |diagnostic: &Diagnostic| {
14697 if multi_line_diagnostic {
14698 v_flex()
14699 } else {
14700 h_flex()
14701 }
14702 .when(allow_closing, |div| {
14703 div.children(diagnostic.is_primary.then(|| {
14704 IconButton::new("close-block", IconName::XCircle)
14705 .icon_color(Color::Muted)
14706 .size(ButtonSize::Compact)
14707 .style(ButtonStyle::Transparent)
14708 .visible_on_hover(group_id.clone())
14709 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14710 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14711 }))
14712 })
14713 .child(
14714 IconButton::new("copy-block", IconName::Copy)
14715 .icon_color(Color::Muted)
14716 .size(ButtonSize::Compact)
14717 .style(ButtonStyle::Transparent)
14718 .visible_on_hover(group_id.clone())
14719 .on_click({
14720 let message = diagnostic.message.clone();
14721 move |_click, cx| {
14722 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14723 }
14724 })
14725 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14726 )
14727 };
14728
14729 let icon_size = buttons(&diagnostic)
14730 .into_any_element()
14731 .layout_as_root(AvailableSpace::min_size(), cx);
14732
14733 h_flex()
14734 .id(cx.block_id)
14735 .group(group_id.clone())
14736 .relative()
14737 .size_full()
14738 .block_mouse_down()
14739 .pl(cx.gutter_dimensions.width)
14740 .w(cx.max_width - cx.gutter_dimensions.full_width())
14741 .child(
14742 div()
14743 .flex()
14744 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14745 .flex_shrink(),
14746 )
14747 .child(buttons(&diagnostic))
14748 .child(div().flex().flex_shrink_0().child(
14749 StyledText::new(text_without_backticks.clone()).with_highlights(
14750 &text_style,
14751 code_ranges.iter().map(|range| {
14752 (
14753 range.clone(),
14754 HighlightStyle {
14755 font_weight: Some(FontWeight::BOLD),
14756 ..Default::default()
14757 },
14758 )
14759 }),
14760 ),
14761 ))
14762 .into_any_element()
14763 })
14764}
14765
14766fn inline_completion_edit_text(
14767 editor_snapshot: &EditorSnapshot,
14768 edits: &Vec<(Range<Anchor>, String)>,
14769 include_deletions: bool,
14770 cx: &WindowContext,
14771) -> InlineCompletionText {
14772 let edit_start = edits
14773 .first()
14774 .unwrap()
14775 .0
14776 .start
14777 .to_display_point(editor_snapshot);
14778
14779 let mut text = String::new();
14780 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14781 let mut highlights = Vec::new();
14782 for (old_range, new_text) in edits {
14783 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14784 text.extend(
14785 editor_snapshot
14786 .buffer_snapshot
14787 .chunks(offset..old_offset_range.start, false)
14788 .map(|chunk| chunk.text),
14789 );
14790 offset = old_offset_range.end;
14791
14792 let start = text.len();
14793 let color = if include_deletions && new_text.is_empty() {
14794 text.extend(
14795 editor_snapshot
14796 .buffer_snapshot
14797 .chunks(old_offset_range.start..offset, false)
14798 .map(|chunk| chunk.text),
14799 );
14800 cx.theme().status().deleted_background
14801 } else {
14802 text.push_str(new_text);
14803 cx.theme().status().created_background
14804 };
14805 let end = text.len();
14806
14807 highlights.push((
14808 start..end,
14809 HighlightStyle {
14810 background_color: Some(color),
14811 ..Default::default()
14812 },
14813 ));
14814 }
14815
14816 let edit_end = edits
14817 .last()
14818 .unwrap()
14819 .0
14820 .end
14821 .to_display_point(editor_snapshot);
14822 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14823 .to_offset(editor_snapshot, Bias::Right);
14824 text.extend(
14825 editor_snapshot
14826 .buffer_snapshot
14827 .chunks(offset..end_of_line, false)
14828 .map(|chunk| chunk.text),
14829 );
14830
14831 InlineCompletionText::Edit {
14832 text: text.into(),
14833 highlights,
14834 }
14835}
14836
14837pub fn highlight_diagnostic_message(
14838 diagnostic: &Diagnostic,
14839 mut max_message_rows: Option<u8>,
14840) -> (SharedString, Vec<Range<usize>>) {
14841 let mut text_without_backticks = String::new();
14842 let mut code_ranges = Vec::new();
14843
14844 if let Some(source) = &diagnostic.source {
14845 text_without_backticks.push_str(source);
14846 code_ranges.push(0..source.len());
14847 text_without_backticks.push_str(": ");
14848 }
14849
14850 let mut prev_offset = 0;
14851 let mut in_code_block = false;
14852 let has_row_limit = max_message_rows.is_some();
14853 let mut newline_indices = diagnostic
14854 .message
14855 .match_indices('\n')
14856 .filter(|_| has_row_limit)
14857 .map(|(ix, _)| ix)
14858 .fuse()
14859 .peekable();
14860
14861 for (quote_ix, _) in diagnostic
14862 .message
14863 .match_indices('`')
14864 .chain([(diagnostic.message.len(), "")])
14865 {
14866 let mut first_newline_ix = None;
14867 let mut last_newline_ix = None;
14868 while let Some(newline_ix) = newline_indices.peek() {
14869 if *newline_ix < quote_ix {
14870 if first_newline_ix.is_none() {
14871 first_newline_ix = Some(*newline_ix);
14872 }
14873 last_newline_ix = Some(*newline_ix);
14874
14875 if let Some(rows_left) = &mut max_message_rows {
14876 if *rows_left == 0 {
14877 break;
14878 } else {
14879 *rows_left -= 1;
14880 }
14881 }
14882 let _ = newline_indices.next();
14883 } else {
14884 break;
14885 }
14886 }
14887 let prev_len = text_without_backticks.len();
14888 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14889 text_without_backticks.push_str(new_text);
14890 if in_code_block {
14891 code_ranges.push(prev_len..text_without_backticks.len());
14892 }
14893 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14894 in_code_block = !in_code_block;
14895 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14896 text_without_backticks.push_str("...");
14897 break;
14898 }
14899 }
14900
14901 (text_without_backticks.into(), code_ranges)
14902}
14903
14904fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14905 match severity {
14906 DiagnosticSeverity::ERROR => colors.error,
14907 DiagnosticSeverity::WARNING => colors.warning,
14908 DiagnosticSeverity::INFORMATION => colors.info,
14909 DiagnosticSeverity::HINT => colors.info,
14910 _ => colors.ignored,
14911 }
14912}
14913
14914pub fn styled_runs_for_code_label<'a>(
14915 label: &'a CodeLabel,
14916 syntax_theme: &'a theme::SyntaxTheme,
14917) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14918 let fade_out = HighlightStyle {
14919 fade_out: Some(0.35),
14920 ..Default::default()
14921 };
14922
14923 let mut prev_end = label.filter_range.end;
14924 label
14925 .runs
14926 .iter()
14927 .enumerate()
14928 .flat_map(move |(ix, (range, highlight_id))| {
14929 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14930 style
14931 } else {
14932 return Default::default();
14933 };
14934 let mut muted_style = style;
14935 muted_style.highlight(fade_out);
14936
14937 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14938 if range.start >= label.filter_range.end {
14939 if range.start > prev_end {
14940 runs.push((prev_end..range.start, fade_out));
14941 }
14942 runs.push((range.clone(), muted_style));
14943 } else if range.end <= label.filter_range.end {
14944 runs.push((range.clone(), style));
14945 } else {
14946 runs.push((range.start..label.filter_range.end, style));
14947 runs.push((label.filter_range.end..range.end, muted_style));
14948 }
14949 prev_end = cmp::max(prev_end, range.end);
14950
14951 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14952 runs.push((prev_end..label.text.len(), fade_out));
14953 }
14954
14955 runs
14956 })
14957}
14958
14959pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14960 let mut prev_index = 0;
14961 let mut prev_codepoint: Option<char> = None;
14962 text.char_indices()
14963 .chain([(text.len(), '\0')])
14964 .filter_map(move |(index, codepoint)| {
14965 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14966 let is_boundary = index == text.len()
14967 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14968 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14969 if is_boundary {
14970 let chunk = &text[prev_index..index];
14971 prev_index = index;
14972 Some(chunk)
14973 } else {
14974 None
14975 }
14976 })
14977}
14978
14979pub trait RangeToAnchorExt: Sized {
14980 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14981
14982 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14983 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14984 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14985 }
14986}
14987
14988impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14989 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14990 let start_offset = self.start.to_offset(snapshot);
14991 let end_offset = self.end.to_offset(snapshot);
14992 if start_offset == end_offset {
14993 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14994 } else {
14995 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14996 }
14997 }
14998}
14999
15000pub trait RowExt {
15001 fn as_f32(&self) -> f32;
15002
15003 fn next_row(&self) -> Self;
15004
15005 fn previous_row(&self) -> Self;
15006
15007 fn minus(&self, other: Self) -> u32;
15008}
15009
15010impl RowExt for DisplayRow {
15011 fn as_f32(&self) -> f32 {
15012 self.0 as f32
15013 }
15014
15015 fn next_row(&self) -> Self {
15016 Self(self.0 + 1)
15017 }
15018
15019 fn previous_row(&self) -> Self {
15020 Self(self.0.saturating_sub(1))
15021 }
15022
15023 fn minus(&self, other: Self) -> u32 {
15024 self.0 - other.0
15025 }
15026}
15027
15028impl RowExt for MultiBufferRow {
15029 fn as_f32(&self) -> f32 {
15030 self.0 as f32
15031 }
15032
15033 fn next_row(&self) -> Self {
15034 Self(self.0 + 1)
15035 }
15036
15037 fn previous_row(&self) -> Self {
15038 Self(self.0.saturating_sub(1))
15039 }
15040
15041 fn minus(&self, other: Self) -> u32 {
15042 self.0 - other.0
15043 }
15044}
15045
15046trait RowRangeExt {
15047 type Row;
15048
15049 fn len(&self) -> usize;
15050
15051 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15052}
15053
15054impl RowRangeExt for Range<MultiBufferRow> {
15055 type Row = MultiBufferRow;
15056
15057 fn len(&self) -> usize {
15058 (self.end.0 - self.start.0) as usize
15059 }
15060
15061 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15062 (self.start.0..self.end.0).map(MultiBufferRow)
15063 }
15064}
15065
15066impl RowRangeExt for Range<DisplayRow> {
15067 type Row = DisplayRow;
15068
15069 fn len(&self) -> usize {
15070 (self.end.0 - self.start.0) as usize
15071 }
15072
15073 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15074 (self.start.0..self.end.0).map(DisplayRow)
15075 }
15076}
15077
15078fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15079 if hunk.diff_base_byte_range.is_empty() {
15080 DiffHunkStatus::Added
15081 } else if hunk.row_range.is_empty() {
15082 DiffHunkStatus::Removed
15083 } else {
15084 DiffHunkStatus::Modified
15085 }
15086}
15087
15088/// If select range has more than one line, we
15089/// just point the cursor to range.start.
15090fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15091 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15092 range
15093 } else {
15094 range.start..range.start
15095 }
15096}
15097
15098pub struct KillRing(ClipboardItem);
15099impl Global for KillRing {}
15100
15101const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);